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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
d26d6fd9 GM |
2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001 |
3 | Free Software Foundation. | |
7b7739b1 | 4 | |
c115973b JB |
5 | This file is part of GNU Emacs. |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7b7739b1 | 9 | the Free Software Foundation; either version 2, or (at your option) |
c115973b JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, 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> |
c115973b JB |
195 | #include <sys/types.h> |
196 | #include <sys/stat.h> | |
7ee72033 | 197 | |
c115973b | 198 | #include "lisp.h" |
a8517066 | 199 | #include "charset.h" |
9763806e | 200 | #include "keyboard.h" |
b5c53576 RS |
201 | #include "frame.h" |
202 | ||
f7cc6849 DL |
203 | #ifdef HAVE_WINDOW_SYSTEM |
204 | #include "fontset.h" | |
d12d0a9b GM |
205 | #endif /* HAVE_WINDOW_SYSTEM */ |
206 | ||
87485d6f | 207 | #ifdef HAVE_X_WINDOWS |
c115973b | 208 | #include "xterm.h" |
c7ae3284 GM |
209 | #ifdef USE_MOTIF |
210 | #include <Xm/Xm.h> | |
211 | #include <Xm/XmStrDefs.h> | |
212 | #endif /* USE_MOTIF */ | |
d12d0a9b | 213 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 214 | |
87485d6f MW |
215 | #ifdef MSDOS |
216 | #include "dosfns.h" | |
217 | #endif | |
82641697 | 218 | |
c3cee013 JR |
219 | #ifdef WINDOWSNT |
220 | #include "w32term.h" | |
221 | #include "fontset.h" | |
222 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
223 | code with #ifdef blocks. */ | |
9763806e | 224 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
225 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
226 | #define x_display_info w32_display_info | |
227 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
228 | #define check_x check_w32 | |
229 | #define x_list_fonts w32_list_fonts | |
230 | #define GCGraphicsExposures 0 | |
231 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
232 | not maximum as on X. Redefine here. */ | |
9763806e | 233 | #undef FONT_WIDTH |
c3cee013 | 234 | #define FONT_WIDTH FONT_MAX_WIDTH |
d12d0a9b | 235 | #endif /* WINDOWSNT */ |
c3cee013 | 236 | |
1a578e9b AC |
237 | #ifdef macintosh |
238 | #include "macterm.h" | |
239 | #define x_display_info mac_display_info | |
240 | #define check_x check_mac | |
241 | ||
242 | extern XGCValues *XCreateGC (void *, WindowPtr, unsigned long, XGCValues *); | |
243 | ||
244 | static INLINE GC | |
245 | x_create_gc (f, mask, xgcv) | |
246 | struct frame *f; | |
247 | unsigned long mask; | |
248 | XGCValues *xgcv; | |
249 | { | |
250 | GC gc; | |
251 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); | |
252 | return gc; | |
253 | } | |
254 | ||
255 | static INLINE void | |
256 | x_free_gc (f, gc) | |
257 | struct frame *f; | |
258 | GC gc; | |
259 | { | |
260 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); | |
261 | } | |
262 | #endif | |
263 | ||
c115973b | 264 | #include "buffer.h" |
f211082d | 265 | #include "dispextern.h" |
357f32fc | 266 | #include "blockinput.h" |
b6d40e46 | 267 | #include "window.h" |
bde7c500 | 268 | #include "intervals.h" |
c115973b | 269 | |
87485d6f | 270 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
271 | |
272 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
273 | time.h. On some such systems, Xos.h tries to redefine struct |
274 | timeval and struct timezone if USG is #defined while it is | |
275 | #included. */ | |
657070ac | 276 | |
82641697 | 277 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 278 | #include <time.h> |
657070ac JB |
279 | #undef USG |
280 | #include <X11/Xos.h> | |
281 | #define USG | |
e11d186d | 282 | #define __TIMEVAL__ |
82641697 GM |
283 | #else /* not XOS_NEEDS_TIME_H */ |
284 | #include <X11/Xos.h> | |
285 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 286 | |
82641697 | 287 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 288 | |
82641697 | 289 | #include <stdio.h> |
82641697 | 290 | #include <ctype.h> |
c115973b | 291 | |
82641697 | 292 | #define abs(X) ((X) < 0 ? -(X) : (X)) |
cb637678 | 293 | |
c660ce4e GM |
294 | /* Number of pt per inch (from the TeXbook). */ |
295 | ||
296 | #define PT_PER_INCH 72.27 | |
297 | ||
82641697 GM |
298 | /* Non-zero if face attribute ATTR is unspecified. */ |
299 | ||
300 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
301 | ||
302 | /* Value is the number of elements of VECTOR. */ | |
303 | ||
304 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
305 | ||
178c5d9c | 306 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
307 | to the copy. */ |
308 | ||
309 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 310 | |
82641697 GM |
311 | /* Make a copy of the contents of Lisp string S on the stack using |
312 | alloca. Value is a pointer to the copy. */ | |
313 | ||
314 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
315 | ||
178c5d9c | 316 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
317 | prime number). */ |
318 | ||
319 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
320 | ||
2d764c78 | 321 | /* A definition of XColor for non-X frames. */ |
ae4b4ba5 | 322 | |
2d764c78 | 323 | #ifndef HAVE_X_WINDOWS |
ae4b4ba5 GM |
324 | |
325 | typedef struct | |
326 | { | |
2d764c78 EZ |
327 | unsigned long pixel; |
328 | unsigned short red, green, blue; | |
329 | char flags; | |
330 | char pad; | |
ae4b4ba5 GM |
331 | } |
332 | XColor; | |
333 | ||
334 | #endif /* not HAVE_X_WINDOWS */ | |
2d764c78 | 335 | |
82641697 GM |
336 | /* Keyword symbols used for face attribute names. */ |
337 | ||
338 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
339 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
340 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
341 | Lisp_Object QCreverse_video; | |
2c20458f | 342 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
343 | |
344 | /* Symbols used for attribute values. */ | |
345 | ||
346 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
347 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
348 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
349 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
350 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
351 | Lisp_Object Qultra_expanded; | |
352 | Lisp_Object Qreleased_button, Qpressed_button; | |
353 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
354 | Lisp_Object Qunspecified; |
355 | ||
356 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 357 | |
92610620 GM |
358 | /* The name of the function to call when the background of the frame |
359 | has changed, frame_update_face_colors. */ | |
360 | ||
361 | Lisp_Object Qframe_update_face_colors; | |
362 | ||
82641697 GM |
363 | /* Names of basic faces. */ |
364 | ||
fb4927c4 | 365 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 366 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
fb4927c4 | 367 | extern Lisp_Object Qmode_line; |
8bd201d6 | 368 | |
92610620 GM |
369 | /* The symbol `face-alias'. A symbols having that property is an |
370 | alias for another face. Value of the property is the name of | |
371 | the aliased face. */ | |
372 | ||
373 | Lisp_Object Qface_alias; | |
374 | ||
8bd201d6 GM |
375 | /* Names of frame parameters related to faces. */ |
376 | ||
377 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
378 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
379 | |
380 | /* Default stipple pattern used on monochrome displays. This stipple | |
381 | pattern is used on monochrome displays instead of shades of gray | |
382 | for a face background color. See `set-face-stipple' for possible | |
383 | values for this variable. */ | |
384 | ||
385 | Lisp_Object Vface_default_stipple; | |
386 | ||
82641697 GM |
387 | /* Alist of alternative font families. Each element is of the form |
388 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
389 | try FAMILY1, then FAMILY2, ... */ | |
390 | ||
391 | Lisp_Object Vface_alternative_font_family_alist; | |
392 | ||
32fcc231 GM |
393 | /* Alist of alternative font registries. Each element is of the form |
394 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
395 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
396 | ||
397 | Lisp_Object Vface_alternative_font_registry_alist; | |
398 | ||
82641697 GM |
399 | /* Allowed scalable fonts. A value of nil means don't allow any |
400 | scalable fonts. A value of t means allow the use of any scalable | |
401 | font. Otherwise, value must be a list of regular expressions. A | |
402 | font may be scaled if its name matches a regular expression in the | |
403 | list. */ | |
404 | ||
eeffb293 | 405 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 406 | |
c824bfbc KH |
407 | /* List of regular expressions that matches names of fonts to ignore. */ |
408 | ||
409 | Lisp_Object Vface_ignored_fonts; | |
410 | ||
057df17c GM |
411 | /* Maximum number of fonts to consider in font_list. If not an |
412 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
413 | ||
414 | Lisp_Object Vfont_list_limit; | |
415 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
416 | ||
82641697 GM |
417 | /* The symbols `foreground-color' and `background-color' which can be |
418 | used as part of a `face' property. This is for compatibility with | |
419 | Emacs 20.2. */ | |
420 | ||
421 | Lisp_Object Qforeground_color, Qbackground_color; | |
422 | ||
423 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 424 | |
ff83dbb1 | 425 | Lisp_Object Qface; |
82641697 GM |
426 | extern Lisp_Object Qmouse_face; |
427 | ||
428 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
429 | ||
fef04523 | 430 | Lisp_Object Qbitmap_spec_p; |
f211082d | 431 | |
82641697 GM |
432 | /* Alist of global face definitions. Each element is of the form |
433 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
434 | is a Lisp vector of face attributes. These faces are used | |
435 | to initialize faces for new frames. */ | |
cb637678 | 436 | |
82641697 | 437 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 438 | |
82641697 | 439 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 440 | |
82641697 | 441 | static int next_lface_id; |
c115973b | 442 | |
82641697 | 443 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 444 | |
82641697 GM |
445 | static Lisp_Object *lface_id_to_name; |
446 | static int lface_id_to_name_size; | |
c115973b | 447 | |
ae4b4ba5 GM |
448 | /* TTY color-related functions (defined in tty-colors.el). */ |
449 | ||
2d764c78 | 450 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; |
82641697 | 451 | |
ae4b4ba5 GM |
452 | /* The name of the function used to compute colors on TTYs. */ |
453 | ||
454 | Lisp_Object Qtty_color_alist; | |
455 | ||
456 | /* An alist of defined terminal colors and their RGB values. */ | |
457 | ||
458 | Lisp_Object Vtty_defined_color_alist; | |
459 | ||
82641697 GM |
460 | /* Counter for calls to clear_face_cache. If this counter reaches |
461 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
462 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
463 | ||
464 | static int clear_font_table_count; | |
465 | #define CLEAR_FONT_TABLE_COUNT 100 | |
466 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
467 | ||
468 | /* Non-zero means face attributes have been changed since the last | |
469 | redisplay. Used in redisplay_internal. */ | |
470 | ||
471 | int face_change_count; | |
472 | ||
a4a76b61 GM |
473 | /* Non-zero means don't display bold text if a face's foreground |
474 | and background colors are the inverse of the default colors of the | |
475 | display. This is a kluge to suppress `bold black' foreground text | |
476 | which is hard to read on an LCD monitor. */ | |
477 | ||
478 | int tty_suppress_bold_inverse_default_colors_p; | |
479 | ||
dbc968b8 GM |
480 | /* A list of the form `((x . y))' used to avoid consing in |
481 | Finternal_set_lisp_face_attribute. */ | |
482 | ||
483 | static Lisp_Object Vparam_value_alist; | |
484 | ||
82641697 GM |
485 | /* The total number of colors currently allocated. */ |
486 | ||
487 | #if GLYPH_DEBUG | |
488 | static int ncolors_allocated; | |
489 | static int npixmaps_allocated; | |
490 | static int ngcs; | |
491 | #endif | |
492 | ||
ceeda019 GM |
493 | /* Non-zero means the definition of the `menu' face for new frames has |
494 | been changed. */ | |
495 | ||
496 | int menu_face_changed_default; | |
82641697 GM |
497 | |
498 | \f | |
499 | /* Function prototypes. */ | |
500 | ||
501 | struct font_name; | |
502 | struct table_entry; | |
503 | ||
ae4b4ba5 GM |
504 | static void map_tty_color P_ ((struct frame *, struct face *, |
505 | enum lface_attribute_index, int *)); | |
c7ae3284 | 506 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
702a1e8e | 507 | static int may_use_scalable_font_p P_ ((char *)); |
82641697 GM |
508 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
509 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 510 | int, int)); |
82641697 | 511 | static int x_face_list_fonts P_ ((struct frame *, char *, |
702a1e8e | 512 | struct font_name *, int, int)); |
82641697 | 513 | static int font_scalable_p P_ ((struct font_name *)); |
82641697 GM |
514 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
515 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
516 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
517 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 518 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 519 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
520 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
521 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
522 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
523 | static char *build_font_name P_ ((struct font_name *)); | |
524 | static void free_font_names P_ ((struct font_name *, int)); | |
525 | static int sorted_font_list P_ ((struct frame *, char *, | |
526 | int (*cmpfn) P_ ((const void *, const void *)), | |
527 | struct font_name **)); | |
32fcc231 GM |
528 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
529 | Lisp_Object, struct font_name **)); | |
39506348 KH |
530 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
531 | Lisp_Object, struct font_name **)); | |
702a1e8e | 532 | static int try_font_list P_ ((struct frame *, Lisp_Object *, |
39506348 | 533 | Lisp_Object, Lisp_Object, struct font_name **)); |
4a529c42 GM |
534 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
535 | Lisp_Object, struct font_name **)); | |
82641697 | 536 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
537 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
538 | struct face *, int)); | |
82641697 | 539 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 540 | Lisp_Object *, int, struct face *)); |
82641697 GM |
541 | static struct face *realize_tty_face P_ ((struct face_cache *, |
542 | Lisp_Object *, int)); | |
543 | static int realize_basic_faces P_ ((struct frame *)); | |
544 | static int realize_default_face P_ ((struct frame *)); | |
545 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
546 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
547 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
548 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
549 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
550 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
551 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
552 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
553 | static void clear_face_gcs P_ ((struct face_cache *)); | |
554 | static void free_face_cache P_ ((struct face_cache *)); | |
555 | static int face_numeric_weight P_ ((Lisp_Object)); | |
556 | static int face_numeric_slant P_ ((Lisp_Object)); | |
557 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 KH |
558 | static int face_fontset P_ ((Lisp_Object *)); |
559 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int)); | |
2c20458f MB |
560 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, Lisp_Object)); |
561 | static void merge_face_inheritance P_ ((struct frame *f, Lisp_Object, | |
562 | Lisp_Object *, Lisp_Object)); | |
82641697 GM |
563 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, |
564 | Lisp_Object)); | |
39506348 KH |
565 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
566 | Lisp_Object, int, int)); | |
82641697 | 567 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 568 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
569 | static void free_realized_faces P_ ((struct face_cache *)); |
570 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
2e6621ca | 571 | struct font_name *, int, int)); |
82641697 GM |
572 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); |
573 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
574 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
575 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
576 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
577 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
578 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
579 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
580 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
581 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
582 | int, int)); | |
583 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
584 | struct font_name *, int, |
585 | Lisp_Object)); | |
82641697 GM |
586 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
587 | struct font_name *, int)); | |
588 | ||
c3cee013 | 589 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
590 | |
591 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
592 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
593 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
594 | int (*cmpfn) P_ ((const void *, const void *)))); | |
595 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
596 | static void x_free_gc P_ ((struct frame *, GC)); | |
d5641fc5 | 597 | static void clear_font_table P_ ((struct x_display_info *)); |
82641697 | 598 | |
c3cee013 JR |
599 | #ifdef WINDOWSNT |
600 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
601 | #endif /* WINDOWSNT */ | |
602 | ||
bce72079 GM |
603 | #ifdef USE_X_TOOLKIT |
604 | static void x_update_menu_appearance P_ ((struct frame *)); | |
9180dc8c PJ |
605 | |
606 | extern void free_frame_menubar P_ ((struct frame *)); | |
bce72079 GM |
607 | #endif /* USE_X_TOOLKIT */ |
608 | ||
c3cee013 | 609 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 610 | |
cb637678 | 611 | \f |
82641697 GM |
612 | /*********************************************************************** |
613 | Utilities | |
614 | ***********************************************************************/ | |
c115973b | 615 | |
87485d6f | 616 | #ifdef HAVE_X_WINDOWS |
cb637678 | 617 | |
a435fc2a GM |
618 | #ifdef DEBUG_X_COLORS |
619 | ||
620 | /* The following is a poor mans infrastructure for debugging X color | |
621 | allocation problems on displays with PseudoColor-8. Some X servers | |
622 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
623 | color reference counts completely so that they don't signal an | |
624 | error when a color is freed whose reference count is already 0. | |
625 | Other X servers do. To help me debug this, the following code | |
626 | implements a simple reference counting schema of its own, for a | |
627 | single display/screen. --gerd. */ | |
628 | ||
629 | /* Reference counts for pixel colors. */ | |
630 | ||
631 | int color_count[256]; | |
632 | ||
633 | /* Register color PIXEL as allocated. */ | |
634 | ||
635 | void | |
636 | register_color (pixel) | |
637 | unsigned long pixel; | |
638 | { | |
639 | xassert (pixel < 256); | |
640 | ++color_count[pixel]; | |
641 | } | |
642 | ||
643 | ||
644 | /* Register color PIXEL as deallocated. */ | |
645 | ||
646 | void | |
647 | unregister_color (pixel) | |
648 | unsigned long pixel; | |
649 | { | |
650 | xassert (pixel < 256); | |
651 | if (color_count[pixel] > 0) | |
652 | --color_count[pixel]; | |
653 | else | |
654 | abort (); | |
655 | } | |
656 | ||
657 | ||
658 | /* Register N colors from PIXELS as deallocated. */ | |
659 | ||
660 | void | |
661 | unregister_colors (pixels, n) | |
662 | unsigned long *pixels; | |
663 | int n; | |
664 | { | |
665 | int i; | |
666 | for (i = 0; i < n; ++i) | |
667 | unregister_color (pixels[i]); | |
668 | } | |
669 | ||
08dc08dc GM |
670 | |
671 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
7ee72033 MB |
672 | doc: /* Dump currently allocated colors to stderr. */) |
673 | () | |
08dc08dc GM |
674 | { |
675 | int i, n; | |
676 | ||
677 | fputc ('\n', stderr); | |
178c5d9c | 678 | |
08dc08dc GM |
679 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
680 | if (color_count[i]) | |
681 | { | |
682 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
683 | ++n; | |
684 | if (n % 5 == 0) | |
685 | fputc ('\n', stderr); | |
686 | else | |
687 | fputc ('\t', stderr); | |
688 | } | |
689 | ||
690 | if (n % 5 != 0) | |
691 | fputc ('\n', stderr); | |
692 | return Qnil; | |
693 | } | |
694 | ||
a435fc2a GM |
695 | #endif /* DEBUG_X_COLORS */ |
696 | ||
d12d0a9b | 697 | |
1f847cf8 GM |
698 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
699 | color values. Interrupt input must be blocked when this function | |
700 | is called. */ | |
701 | ||
702 | void | |
703 | x_free_colors (f, pixels, npixels) | |
704 | struct frame *f; | |
705 | unsigned long *pixels; | |
706 | int npixels; | |
707 | { | |
708 | int class = FRAME_X_DISPLAY_INFO (f)->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 GM |
717 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
718 | pixels, npixels, 0); | |
08dc08dc GM |
719 | } |
720 | } | |
721 | ||
722 | ||
723 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
724 | color values. Interrupt input must be blocked when this function | |
725 | is called. */ | |
726 | ||
727 | void | |
728 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
729 | Display *dpy; | |
730 | Screen *screen; | |
731 | Colormap cmap; | |
732 | unsigned long *pixels; | |
733 | int npixels; | |
734 | { | |
735 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
736 | int class = dpyinfo->visual->class; | |
737 | ||
738 | /* If display has an immutable color map, freeing colors is not | |
739 | necessary and some servers don't allow it. So don't do it. */ | |
740 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
741 | { | |
a435fc2a | 742 | #ifdef DEBUG_X_COLORS |
08dc08dc | 743 | unregister_colors (pixels, npixels); |
a435fc2a | 744 | #endif |
513c5806 | 745 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
746 | } |
747 | } | |
748 | ||
08dc08dc | 749 | |
82641697 GM |
750 | /* Create and return a GC for use on frame F. GC values and mask |
751 | are given by XGCV and MASK. */ | |
752 | ||
753 | static INLINE GC | |
754 | x_create_gc (f, mask, xgcv) | |
cb637678 | 755 | struct frame *f; |
82641697 GM |
756 | unsigned long mask; |
757 | XGCValues *xgcv; | |
c115973b JB |
758 | { |
759 | GC gc; | |
82641697 GM |
760 | BLOCK_INPUT; |
761 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
762 | UNBLOCK_INPUT; | |
763 | IF_DEBUG (++ngcs); | |
764 | return gc; | |
765 | } | |
c115973b | 766 | |
42120bc7 | 767 | |
82641697 GM |
768 | /* Free GC which was used on frame F. */ |
769 | ||
770 | static INLINE void | |
771 | x_free_gc (f, gc) | |
772 | struct frame *f; | |
773 | GC gc; | |
774 | { | |
660ed669 | 775 | BLOCK_INPUT; |
82641697 GM |
776 | xassert (--ngcs >= 0); |
777 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
778 | UNBLOCK_INPUT; | |
779 | } | |
660ed669 | 780 | |
82641697 | 781 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 782 | |
c3cee013 JR |
783 | #ifdef WINDOWSNT |
784 | /* W32 emulation of GCs */ | |
785 | ||
786 | static INLINE GC | |
787 | x_create_gc (f, mask, xgcv) | |
788 | struct frame *f; | |
789 | unsigned long mask; | |
790 | XGCValues *xgcv; | |
791 | { | |
792 | GC gc; | |
793 | BLOCK_INPUT; | |
794 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
795 | UNBLOCK_INPUT; | |
796 | IF_DEBUG (++ngcs); | |
797 | return gc; | |
798 | } | |
799 | ||
800 | ||
801 | /* Free GC which was used on frame F. */ | |
802 | ||
803 | static INLINE void | |
804 | x_free_gc (f, gc) | |
805 | struct frame *f; | |
806 | GC gc; | |
807 | { | |
808 | BLOCK_INPUT; | |
809 | xassert (--ngcs >= 0); | |
810 | xfree (gc); | |
811 | UNBLOCK_INPUT; | |
812 | } | |
813 | ||
814 | #endif /* WINDOWSNT */ | |
660ed669 | 815 | |
82641697 GM |
816 | /* Like stricmp. Used to compare parts of font names which are in |
817 | ISO8859-1. */ | |
818 | ||
819 | int | |
820 | xstricmp (s1, s2) | |
821 | unsigned char *s1, *s2; | |
822 | { | |
823 | while (*s1 && *s2) | |
95887807 | 824 | { |
82641697 GM |
825 | unsigned char c1 = tolower (*s1); |
826 | unsigned char c2 = tolower (*s2); | |
827 | if (c1 != c2) | |
828 | return c1 < c2 ? -1 : 1; | |
829 | ++s1, ++s2; | |
95887807 | 830 | } |
cd0bb842 | 831 | |
82641697 GM |
832 | if (*s1 == 0) |
833 | return *s2 == 0 ? 0 : -1; | |
834 | return 1; | |
835 | } | |
660ed669 | 836 | |
660ed669 | 837 | |
82641697 | 838 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 839 | |
82641697 GM |
840 | static unsigned char * |
841 | xstrlwr (s) | |
842 | unsigned char *s; | |
843 | { | |
844 | unsigned char *p = s; | |
845 | ||
846 | for (p = s; *p; ++p) | |
847 | *p = tolower (*p); | |
848 | ||
849 | return s; | |
c115973b | 850 | } |
cb637678 | 851 | |
42120bc7 | 852 | |
82641697 GM |
853 | /* Signal `error' with message S, and additional argument ARG. */ |
854 | ||
855 | static void | |
856 | signal_error (s, arg) | |
857 | char *s; | |
858 | Lisp_Object arg; | |
42120bc7 | 859 | { |
82641697 GM |
860 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
861 | } | |
42120bc7 | 862 | |
82641697 | 863 | |
c0617987 GM |
864 | /* If FRAME is nil, return a pointer to the selected frame. |
865 | Otherwise, check that FRAME is a live frame, and return a pointer | |
866 | to it. NPARAM is the parameter number of FRAME, for | |
867 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
868 | Lisp function definitions. */ | |
82641697 GM |
869 | |
870 | static INLINE struct frame * | |
871 | frame_or_selected_frame (frame, nparam) | |
872 | Lisp_Object frame; | |
873 | int nparam; | |
874 | { | |
82641697 | 875 | if (NILP (frame)) |
c0617987 | 876 | frame = selected_frame; |
178c5d9c | 877 | |
b7826503 | 878 | CHECK_LIVE_FRAME (frame); |
c0617987 | 879 | return XFRAME (frame); |
42120bc7 | 880 | } |
82641697 | 881 | |
42120bc7 | 882 | \f |
82641697 GM |
883 | /*********************************************************************** |
884 | Frames and faces | |
885 | ***********************************************************************/ | |
cd0bb842 | 886 | |
82641697 | 887 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 888 | |
82641697 GM |
889 | void |
890 | init_frame_faces (f) | |
cb637678 | 891 | struct frame *f; |
cb637678 | 892 | { |
82641697 GM |
893 | /* Make a face cache, if F doesn't have one. */ |
894 | if (FRAME_FACE_CACHE (f) == NULL) | |
895 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 896 | |
c3cee013 | 897 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 898 | /* Make the image cache. */ |
c3cee013 | 899 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
900 | { |
901 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
902 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
903 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
904 | } | |
c3cee013 | 905 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 906 | |
178c5d9c | 907 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
908 | parameters to realize basic faces at this point. */ |
909 | #ifdef HAVE_X_WINDOWS | |
910 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
911 | #endif |
912 | #ifdef WINDOWSNT | |
913 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
82641697 GM |
914 | #endif |
915 | if (!realize_basic_faces (f)) | |
916 | abort (); | |
917 | } | |
cb637678 | 918 | |
cb637678 | 919 | |
82641697 | 920 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 921 | |
82641697 GM |
922 | void |
923 | free_frame_faces (f) | |
cb637678 | 924 | struct frame *f; |
cb637678 | 925 | { |
82641697 | 926 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 927 | |
82641697 GM |
928 | if (face_cache) |
929 | { | |
930 | free_face_cache (face_cache); | |
931 | FRAME_FACE_CACHE (f) = NULL; | |
932 | } | |
660ed669 | 933 | |
c3cee013 JR |
934 | #ifdef HAVE_WINDOW_SYSTEM |
935 | if (FRAME_WINDOW_P (f)) | |
195f798e | 936 | { |
82641697 GM |
937 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
938 | if (image_cache) | |
195f798e | 939 | { |
82641697 GM |
940 | --image_cache->refcount; |
941 | if (image_cache->refcount == 0) | |
942 | free_image_cache (f); | |
195f798e RS |
943 | } |
944 | } | |
c3cee013 | 945 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
946 | } |
947 | ||
82641697 | 948 | |
8bd201d6 GM |
949 | /* Clear face caches, and recompute basic faces for frame F. Call |
950 | this after changing frame parameters on which those faces depend, | |
951 | or when realized faces have been freed due to changing attributes | |
952 | of named faces. */ | |
82641697 GM |
953 | |
954 | void | |
955 | recompute_basic_faces (f) | |
cb637678 | 956 | struct frame *f; |
cb637678 | 957 | { |
82641697 GM |
958 | if (FRAME_FACE_CACHE (f)) |
959 | { | |
8bd201d6 | 960 | clear_face_cache (0); |
18df9369 GM |
961 | if (!realize_basic_faces (f)) |
962 | abort (); | |
82641697 GM |
963 | } |
964 | } | |
cb637678 | 965 | |
cb637678 | 966 | |
82641697 GM |
967 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
968 | try to free unused fonts, too. */ | |
cb637678 | 969 | |
adfea139 | 970 | void |
82641697 GM |
971 | clear_face_cache (clear_fonts_p) |
972 | int clear_fonts_p; | |
cb637678 | 973 | { |
c3cee013 | 974 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
975 | Lisp_Object tail, frame; |
976 | struct frame *f; | |
828e66d1 | 977 | |
82641697 GM |
978 | if (clear_fonts_p |
979 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 980 | { |
d5641fc5 GM |
981 | struct x_display_info *dpyinfo; |
982 | ||
983 | /* Fonts are common for frames on one display, i.e. on | |
984 | one X screen. */ | |
985 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
986 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
987 | clear_font_table (dpyinfo); | |
988 | ||
82641697 GM |
989 | /* From time to time see if we can unload some fonts. This also |
990 | frees all realized faces on all frames. Fonts needed by | |
991 | faces will be loaded again when faces are realized again. */ | |
992 | clear_font_table_count = 0; | |
195f798e | 993 | |
82641697 | 994 | FOR_EACH_FRAME (tail, frame) |
195f798e | 995 | { |
d5641fc5 | 996 | struct frame *f = XFRAME (frame); |
c3cee013 | 997 | if (FRAME_WINDOW_P (f) |
82641697 | 998 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 999 | free_all_realized_faces (frame); |
82641697 GM |
1000 | } |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | /* Clear GCs of realized faces. */ | |
1005 | FOR_EACH_FRAME (tail, frame) | |
1006 | { | |
1007 | f = XFRAME (frame); | |
c3cee013 | 1008 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1009 | { |
1010 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1011 | clear_image_cache (f, 0); | |
195f798e RS |
1012 | } |
1013 | } | |
828e66d1 | 1014 | } |
c3cee013 | 1015 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1016 | } |
1017 | ||
82641697 GM |
1018 | |
1019 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1020 | doc: /* Clear face caches on all frames. |
1021 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1022 | (thoroughly) | |
6a3f48c7 | 1023 | Lisp_Object thoroughly; |
cd0bb842 | 1024 | { |
6a3f48c7 | 1025 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1026 | ++face_change_count; |
1027 | ++windows_or_buffers_changed; | |
82641697 GM |
1028 | return Qnil; |
1029 | } | |
1030 | ||
1031 | ||
1032 | ||
c3cee013 | 1033 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1034 | |
1035 | ||
4cba8c0b GM |
1036 | /* Remove fonts from the font table of DPYINFO except for the default |
1037 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1038 | from time to time. */ |
82641697 GM |
1039 | |
1040 | static void | |
d5641fc5 GM |
1041 | clear_font_table (dpyinfo) |
1042 | struct x_display_info *dpyinfo; | |
82641697 | 1043 | { |
82641697 GM |
1044 | int i; |
1045 | ||
d5641fc5 | 1046 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1047 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1048 | { | |
1049 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1050 | Lisp_Object tail, frame; |
1051 | ||
1052 | /* Check if slot is already free. */ | |
1053 | if (font_info->name == NULL) | |
1054 | continue; | |
1055 | ||
1056 | /* Don't free a default font of some frame on this display. */ | |
1057 | FOR_EACH_FRAME (tail, frame) | |
1058 | { | |
1059 | struct frame *f = XFRAME (frame); | |
1060 | if (FRAME_WINDOW_P (f) | |
1061 | && FRAME_X_DISPLAY_INFO (f) == dpyinfo | |
1062 | && font_info->font == FRAME_FONT (f)) | |
1063 | break; | |
1064 | } | |
82641697 | 1065 | |
d5641fc5 | 1066 | if (!NILP (tail)) |
39506348 | 1067 | continue; |
82641697 | 1068 | |
39506348 KH |
1069 | /* Free names. */ |
1070 | if (font_info->full_name != font_info->name) | |
1071 | xfree (font_info->full_name); | |
1072 | xfree (font_info->name); | |
82641697 | 1073 | |
39506348 KH |
1074 | /* Free the font. */ |
1075 | BLOCK_INPUT; | |
c3cee013 | 1076 | #ifdef HAVE_X_WINDOWS |
39506348 | 1077 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1078 | #endif |
1079 | #ifdef WINDOWSNT | |
39506348 | 1080 | w32_unload_font (dpyinfo, font_info->font); |
c3cee013 | 1081 | #endif |
39506348 | 1082 | UNBLOCK_INPUT; |
82641697 | 1083 | |
39506348 KH |
1084 | /* Mark font table slot free. */ |
1085 | font_info->font = NULL; | |
1086 | font_info->name = font_info->full_name = NULL; | |
1087 | } | |
82641697 GM |
1088 | } |
1089 | ||
c3cee013 | 1090 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1091 | |
1092 | ||
1093 | \f | |
1094 | /*********************************************************************** | |
1095 | X Pixmaps | |
1096 | ***********************************************************************/ | |
1097 | ||
c3cee013 | 1098 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1099 | |
fef04523 | 1100 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1101 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1102 | A bitmap specification is either a string, a file name, or a list |
1103 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1104 | HEIGHT is its height, and DATA is a string containing the bits of | |
1105 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1106 | \(WIDTH + 7)/8 bytes. */) |
1107 | (object) | |
82641697 GM |
1108 | Lisp_Object object; |
1109 | { | |
c7ae3284 | 1110 | int pixmap_p = 0; |
178c5d9c | 1111 | |
c7ae3284 GM |
1112 | if (STRINGP (object)) |
1113 | /* If OBJECT is a string, it's a file name. */ | |
1114 | pixmap_p = 1; | |
1115 | else if (CONSP (object)) | |
1116 | { | |
1117 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1118 | HEIGHT must be integers > 0, and DATA must be string large | |
1119 | enough to hold a bitmap of the specified size. */ | |
1120 | Lisp_Object width, height, data; | |
1121 | ||
1122 | height = width = data = Qnil; | |
178c5d9c | 1123 | |
c7ae3284 GM |
1124 | if (CONSP (object)) |
1125 | { | |
1126 | width = XCAR (object); | |
1127 | object = XCDR (object); | |
1128 | if (CONSP (object)) | |
1129 | { | |
1130 | height = XCAR (object); | |
1131 | object = XCDR (object); | |
1132 | if (CONSP (object)) | |
1133 | data = XCAR (object); | |
1134 | } | |
1135 | } | |
cd0bb842 | 1136 | |
c7ae3284 GM |
1137 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1138 | { | |
1139 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1140 | / BITS_PER_CHAR); | |
6fc556fd | 1141 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1142 | pixmap_p = 1; |
1143 | } | |
1144 | } | |
1145 | ||
1146 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1147 | } |
1148 | ||
cd0bb842 | 1149 | |
82641697 GM |
1150 | /* Load a bitmap according to NAME (which is either a file name or a |
1151 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1152 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1153 | bitmap cannot be loaded, display a message saying so, and return | |
1154 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1155 | if these pointers are not null. */ | |
cd0bb842 | 1156 | |
82641697 | 1157 | static int |
cd0bb842 | 1158 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1159 | FRAME_PTR f; |
cd0bb842 RS |
1160 | Lisp_Object name; |
1161 | unsigned int *w_ptr, *h_ptr; | |
1162 | { | |
1163 | int bitmap_id; | |
1164 | Lisp_Object tem; | |
1165 | ||
1166 | if (NILP (name)) | |
82641697 | 1167 | return 0; |
cd0bb842 | 1168 | |
fef04523 | 1169 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1170 | if (NILP (tem)) |
fef04523 | 1171 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1172 | |
1173 | BLOCK_INPUT; | |
cd0bb842 RS |
1174 | if (CONSP (name)) |
1175 | { | |
1176 | /* Decode a bitmap spec into a bitmap. */ | |
1177 | ||
1178 | int h, w; | |
1179 | Lisp_Object bits; | |
1180 | ||
1181 | w = XINT (Fcar (name)); | |
1182 | h = XINT (Fcar (Fcdr (name))); | |
1183 | bits = Fcar (Fcdr (Fcdr (name))); | |
1184 | ||
1185 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
1186 | w, h); | |
1187 | } | |
1188 | else | |
1189 | { | |
1190 | /* It must be a string -- a file name. */ | |
1191 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1192 | } | |
1193 | UNBLOCK_INPUT; | |
1194 | ||
7812a96f | 1195 | if (bitmap_id < 0) |
82641697 | 1196 | { |
1b8f7fbc | 1197 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1198 | bitmap_id = 0; |
cd0bb842 | 1199 | |
82641697 GM |
1200 | if (w_ptr) |
1201 | *w_ptr = 0; | |
1202 | if (h_ptr) | |
1203 | *h_ptr = 0; | |
1204 | } | |
1205 | else | |
1206 | { | |
1207 | #if GLYPH_DEBUG | |
1208 | ++npixmaps_allocated; | |
1209 | #endif | |
1210 | if (w_ptr) | |
1211 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1212 | ||
1213 | if (h_ptr) | |
1214 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1215 | } | |
cd0bb842 RS |
1216 | |
1217 | return bitmap_id; | |
cb637678 | 1218 | } |
87485d6f | 1219 | |
c3cee013 | 1220 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1221 | |
87485d6f | 1222 | |
82641697 GM |
1223 | \f |
1224 | /*********************************************************************** | |
1225 | Minimum font bounds | |
1226 | ***********************************************************************/ | |
1227 | ||
c3cee013 | 1228 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1229 | |
d6fc0a22 GM |
1230 | /* Update the line_height of frame F. Return non-zero if line height |
1231 | changes. */ | |
87485d6f | 1232 | |
82641697 GM |
1233 | int |
1234 | frame_update_line_height (f) | |
87485d6f | 1235 | struct frame *f; |
87485d6f | 1236 | { |
39506348 | 1237 | int line_height, changed_p; |
178c5d9c | 1238 | |
39506348 | 1239 | line_height = FONT_HEIGHT (FRAME_FONT (f)); |
c3cee013 JR |
1240 | changed_p = line_height != FRAME_LINE_HEIGHT (f); |
1241 | FRAME_LINE_HEIGHT (f) = line_height; | |
82641697 | 1242 | return changed_p; |
87485d6f MW |
1243 | } |
1244 | ||
c3cee013 | 1245 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1246 | |
1247 | \f | |
1248 | /*********************************************************************** | |
1249 | Fonts | |
1250 | ***********************************************************************/ | |
1251 | ||
c3cee013 | 1252 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1253 | |
39506348 KH |
1254 | /* Load font of face FACE which is used on frame F to display |
1255 | character C. The name of the font to load is determined by lface | |
1256 | and fontset of FACE. */ | |
82641697 GM |
1257 | |
1258 | static void | |
39506348 | 1259 | load_face_font (f, face, c) |
82641697 GM |
1260 | struct frame *f; |
1261 | struct face *face; | |
39506348 | 1262 | int c; |
87485d6f | 1263 | { |
82641697 | 1264 | struct font_info *font_info = NULL; |
39506348 | 1265 | char *font_name; |
178c5d9c | 1266 | |
82641697 | 1267 | face->font_info_id = -1; |
82641697 | 1268 | face->font = NULL; |
39506348 KH |
1269 | |
1270 | font_name = choose_face_font (f, face->lface, face->fontset, c); | |
1271 | if (!font_name) | |
1272 | return; | |
1273 | ||
82641697 | 1274 | BLOCK_INPUT; |
39506348 | 1275 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1276 | UNBLOCK_INPUT; |
1277 | ||
1278 | if (font_info) | |
1279 | { | |
39506348 | 1280 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1281 | face->font = font_info->font; |
1282 | face->font_name = font_info->full_name; | |
39506348 | 1283 | if (face->gc) |
82641697 | 1284 | { |
39506348 KH |
1285 | x_free_gc (f, face->gc); |
1286 | face->gc = 0; | |
82641697 GM |
1287 | } |
1288 | } | |
39506348 | 1289 | else |
1b8f7fbc | 1290 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1291 | build_string (font_name), Qnil); |
39506348 | 1292 | xfree (font_name); |
87485d6f MW |
1293 | } |
1294 | ||
c3cee013 | 1295 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1296 | |
87485d6f | 1297 | |
82641697 GM |
1298 | \f |
1299 | /*********************************************************************** | |
1300 | X Colors | |
1301 | ***********************************************************************/ | |
1302 | ||
2d764c78 | 1303 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1304 | |
2d764c78 EZ |
1305 | int |
1306 | tty_defined_color (f, color_name, color_def, alloc) | |
1307 | struct frame *f; | |
1308 | char *color_name; | |
1309 | XColor *color_def; | |
1310 | int alloc; | |
1311 | { | |
1312 | Lisp_Object color_desc; | |
ae4b4ba5 GM |
1313 | unsigned long color_idx = FACE_TTY_DEFAULT_COLOR; |
1314 | unsigned long red = 0, green = 0, blue = 0; | |
2d764c78 EZ |
1315 | int status = 1; |
1316 | ||
1317 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1318 | { | |
a61c12d5 EZ |
1319 | Lisp_Object frame; |
1320 | ||
1321 | XSETFRAME (frame, f); | |
2d764c78 | 1322 | status = 0; |
a61c12d5 | 1323 | color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); |
363e4e42 | 1324 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
2d764c78 EZ |
1325 | { |
1326 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1327 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1328 | { | |
1329 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1330 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1331 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1332 | } | |
1333 | status = 1; | |
1334 | } | |
a61c12d5 | 1335 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
2d764c78 | 1336 | /* We were called early during startup, and the colors are not |
a61c12d5 | 1337 | yet set up in tty-defined-color-alist. Don't return a failure |
2d764c78 EZ |
1338 | indication, since this produces the annoying "Unable to |
1339 | load color" messages in the *Messages* buffer. */ | |
1340 | status = 1; | |
1341 | } | |
f9d2fdc4 EZ |
1342 | if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) |
1343 | { | |
1344 | if (strcmp (color_name, "unspecified-fg") == 0) | |
1345 | color_idx = FACE_TTY_DEFAULT_FG_COLOR; | |
1346 | else if (strcmp (color_name, "unspecified-bg") == 0) | |
1347 | color_idx = FACE_TTY_DEFAULT_BG_COLOR; | |
1348 | } | |
1349 | ||
3b451f74 EZ |
1350 | if (color_idx != FACE_TTY_DEFAULT_COLOR) |
1351 | status = 1; | |
1352 | ||
3a28db80 | 1353 | color_def->pixel = color_idx; |
2d764c78 EZ |
1354 | color_def->red = red; |
1355 | color_def->green = green; | |
1356 | color_def->blue = blue; | |
1357 | ||
1358 | return status; | |
1359 | } | |
1360 | ||
08dc08dc GM |
1361 | |
1362 | /* Decide if color named COLOR_NAME is valid for the display | |
1363 | associated with the frame F; if so, return the rgb values in | |
1364 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1365 | |
1366 | This does the right thing for any type of frame. */ | |
08dc08dc | 1367 | |
2d764c78 EZ |
1368 | int |
1369 | defined_color (f, color_name, color_def, alloc) | |
1370 | struct frame *f; | |
1371 | char *color_name; | |
1372 | XColor *color_def; | |
1373 | int alloc; | |
1374 | { | |
1375 | if (!FRAME_WINDOW_P (f)) | |
1376 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1377 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1378 | else if (FRAME_X_P (f)) |
1379 | return x_defined_color (f, color_name, color_def, alloc); | |
1380 | #endif | |
1381 | #ifdef WINDOWSNT | |
1382 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1383 | return w32_defined_color (f, color_name, color_def, alloc); |
1384 | #endif | |
1385 | #ifdef macintosh | |
1386 | else if (FRAME_MAC_P (f)) | |
2d764c78 EZ |
1387 | return mac_defined_color (f, color_name, color_def, alloc); |
1388 | #endif | |
1389 | else | |
1390 | abort (); | |
1391 | } | |
1392 | ||
08dc08dc GM |
1393 | |
1394 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1395 | Lisp string. */ | |
2d764c78 EZ |
1396 | |
1397 | Lisp_Object | |
1398 | tty_color_name (f, idx) | |
1399 | struct frame *f; | |
1400 | int idx; | |
1401 | { | |
2d764c78 EZ |
1402 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1403 | { | |
a61c12d5 EZ |
1404 | Lisp_Object frame; |
1405 | Lisp_Object coldesc; | |
1406 | ||
1407 | XSETFRAME (frame, f); | |
1408 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1409 | |
1410 | if (!NILP (coldesc)) | |
1411 | return XCAR (coldesc); | |
1412 | } | |
1413 | #ifdef MSDOS | |
1414 | /* We can have an MSDOG frame under -nw for a short window of | |
1415 | opportunity before internal_terminal_init is called. DTRT. */ | |
1416 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1417 | return msdos_stdcolor_name (idx); | |
1418 | #endif | |
1419 | ||
ef917393 EZ |
1420 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1421 | return build_string (unspecified_fg); | |
1422 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1423 | return build_string (unspecified_bg); | |
c3cee013 JR |
1424 | |
1425 | #ifdef WINDOWSNT | |
1426 | return vga_stdcolor_name (idx); | |
1427 | #endif | |
1428 | ||
ef917393 | 1429 | return Qunspecified; |
2d764c78 | 1430 | } |
82641697 | 1431 | |
08dc08dc | 1432 | |
82641697 GM |
1433 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
1434 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1435 | ||
1436 | static int | |
1437 | face_color_gray_p (f, color_name) | |
1438 | struct frame *f; | |
1439 | char *color_name; | |
1440 | { | |
1441 | XColor color; | |
1442 | int gray_p; | |
1443 | ||
1444 | if (defined_color (f, color_name, &color, 0)) | |
1445 | gray_p = ((abs (color.red - color.green) | |
1446 | < max (color.red, color.green) / 20) | |
1447 | && (abs (color.green - color.blue) | |
1448 | < max (color.green, color.blue) / 20) | |
1449 | && (abs (color.blue - color.red) | |
1450 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1451 | else |
82641697 | 1452 | gray_p = 0; |
178c5d9c | 1453 | |
82641697 | 1454 | return gray_p; |
87485d6f | 1455 | } |
87485d6f | 1456 | |
cb637678 | 1457 | |
82641697 GM |
1458 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1459 | BACKGROUND_P non-zero means the color will be used as background | |
1460 | color. */ | |
1461 | ||
1462 | static int | |
1463 | face_color_supported_p (f, color_name, background_p) | |
1464 | struct frame *f; | |
1465 | char *color_name; | |
1466 | int background_p; | |
1467 | { | |
1468 | Lisp_Object frame; | |
2d764c78 | 1469 | XColor not_used; |
82641697 GM |
1470 | |
1471 | XSETFRAME (frame, f); | |
8affcced KH |
1472 | return (FRAME_WINDOW_P (f) |
1473 | ? (!NILP (Fxw_display_color_p (frame)) | |
1474 | || xstricmp (color_name, "black") == 0 | |
1475 | || xstricmp (color_name, "white") == 0 | |
1476 | || (background_p | |
1477 | && face_color_gray_p (f, color_name)) | |
1478 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1479 | && face_color_gray_p (f, color_name))) | |
1480 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1481 | } |
82641697 GM |
1482 | |
1483 | ||
da47150d | 1484 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1485 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1486 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1487 | If FRAME is nil or omitted, use the selected frame. */) |
1488 | (color, frame) | |
82641697 | 1489 | Lisp_Object color, frame; |
cb637678 | 1490 | { |
2d764c78 EZ |
1491 | struct frame *f; |
1492 | ||
b7826503 PJ |
1493 | CHECK_FRAME (frame); |
1494 | CHECK_STRING (color); | |
2d764c78 | 1495 | f = XFRAME (frame); |
82641697 GM |
1496 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1497 | } | |
660ed669 | 1498 | |
fffc2367 | 1499 | |
da47150d EZ |
1500 | DEFUN ("color-supported-p", Fcolor_supported_p, |
1501 | Scolor_supported_p, 2, 3, 0, | |
7ee72033 | 1502 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa GM |
1503 | BACKGROUND-P non-nil means COLOR is used as a background. |
1504 | If FRAME is nil or omitted, use the selected frame. | |
7ee72033 MB |
1505 | COLOR must be a valid color name. */) |
1506 | (color, frame, background_p) | |
82641697 GM |
1507 | Lisp_Object frame, color, background_p; |
1508 | { | |
2d764c78 EZ |
1509 | struct frame *f; |
1510 | ||
b7826503 PJ |
1511 | CHECK_FRAME (frame); |
1512 | CHECK_STRING (color); | |
2d764c78 | 1513 | f = XFRAME (frame); |
82641697 GM |
1514 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1515 | return Qt; | |
1516 | return Qnil; | |
1517 | } | |
7b37f67b | 1518 | |
08dc08dc | 1519 | |
82641697 GM |
1520 | /* Load color with name NAME for use by face FACE on frame F. |
1521 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1522 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1523 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1524 | pixel color. If color cannot be loaded, display a message, and | |
1525 | return the foreground, background or underline color of F, but | |
1526 | record that fact in flags of the face so that we don't try to free | |
1527 | these colors. */ | |
1528 | ||
44747bd0 | 1529 | unsigned long |
82641697 GM |
1530 | load_color (f, face, name, target_index) |
1531 | struct frame *f; | |
1532 | struct face *face; | |
1533 | Lisp_Object name; | |
1534 | enum lface_attribute_index target_index; | |
1535 | { | |
1536 | XColor color; | |
178c5d9c | 1537 | |
82641697 GM |
1538 | xassert (STRINGP (name)); |
1539 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1540 | || target_index == LFACE_BACKGROUND_INDEX | |
1541 | || target_index == LFACE_UNDERLINE_INDEX | |
1542 | || target_index == LFACE_OVERLINE_INDEX | |
1543 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1544 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1545 | |
82641697 GM |
1546 | /* if the color map is full, defined_color will return a best match |
1547 | to the values in an existing cell. */ | |
1548 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1549 | { | |
2d764c78 | 1550 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1551 | |
82641697 | 1552 | switch (target_index) |
1120eb5e | 1553 | { |
82641697 GM |
1554 | case LFACE_FOREGROUND_INDEX: |
1555 | face->foreground_defaulted_p = 1; | |
1556 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1557 | break; | |
178c5d9c | 1558 | |
82641697 GM |
1559 | case LFACE_BACKGROUND_INDEX: |
1560 | face->background_defaulted_p = 1; | |
1561 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1562 | break; | |
178c5d9c | 1563 | |
82641697 GM |
1564 | case LFACE_UNDERLINE_INDEX: |
1565 | face->underline_defaulted_p = 1; | |
1566 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1567 | break; | |
178c5d9c | 1568 | |
82641697 GM |
1569 | case LFACE_OVERLINE_INDEX: |
1570 | face->overline_color_defaulted_p = 1; | |
1571 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1572 | break; |
178c5d9c | 1573 | |
82641697 GM |
1574 | case LFACE_STRIKE_THROUGH_INDEX: |
1575 | face->strike_through_color_defaulted_p = 1; | |
1576 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1577 | break; | |
178c5d9c | 1578 | |
82641697 GM |
1579 | case LFACE_BOX_INDEX: |
1580 | face->box_color_defaulted_p = 1; | |
1581 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1582 | break; | |
1583 | ||
1584 | default: | |
1585 | abort (); | |
1120eb5e | 1586 | } |
82641697 GM |
1587 | } |
1588 | #if GLYPH_DEBUG | |
1589 | else | |
1590 | ++ncolors_allocated; | |
1591 | #endif | |
178c5d9c | 1592 | |
82641697 GM |
1593 | return color.pixel; |
1594 | } | |
1120eb5e | 1595 | |
08dc08dc | 1596 | |
c3cee013 | 1597 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1598 | |
82641697 GM |
1599 | /* Load colors for face FACE which is used on frame F. Colors are |
1600 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1601 | of ATTRS. If the background color specified is not supported on F, | |
1602 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1603 | ||
1604 | static void | |
1605 | load_face_colors (f, face, attrs) | |
1606 | struct frame *f; | |
1607 | struct face *face; | |
1608 | Lisp_Object *attrs; | |
1609 | { | |
1610 | Lisp_Object fg, bg; | |
1611 | ||
1612 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1613 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1614 | ||
1615 | /* Swap colors if face is inverse-video. */ | |
1616 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1617 | { | |
1618 | Lisp_Object tmp; | |
1619 | tmp = fg; | |
1620 | fg = bg; | |
1621 | bg = tmp; | |
1622 | } | |
1623 | ||
1624 | /* Check for support for foreground, not for background because | |
1625 | face_color_supported_p is smart enough to know that grays are | |
1626 | "supported" as background because we are supposed to use stipple | |
1627 | for them. */ | |
1628 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1629 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1630 | { |
1631 | x_destroy_bitmap (f, face->stipple); | |
1632 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1633 | &face->pixmap_w, &face->pixmap_h); | |
1634 | } | |
82641697 | 1635 | |
be8a72f4 | 1636 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1637 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1638 | } |
1639 | ||
660ed669 | 1640 | |
82641697 | 1641 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1642 | |
cb637678 | 1643 | void |
82641697 | 1644 | unload_color (f, pixel) |
cb637678 | 1645 | struct frame *f; |
82641697 | 1646 | unsigned long pixel; |
cb637678 | 1647 | { |
c3cee013 | 1648 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1649 | if (pixel != -1) |
1650 | { | |
1651 | BLOCK_INPUT; | |
1652 | x_free_colors (f, &pixel, 1); | |
1653 | UNBLOCK_INPUT; | |
1654 | } | |
c3cee013 | 1655 | #endif |
82641697 GM |
1656 | } |
1657 | ||
1658 | ||
1659 | /* Free colors allocated for FACE. */ | |
1660 | ||
1661 | static void | |
1662 | free_face_colors (f, face) | |
1663 | struct frame *f; | |
1664 | struct face *face; | |
1665 | { | |
c3cee013 | 1666 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1667 | if (face->colors_copied_bitwise_p) |
1668 | return; | |
1669 | ||
08dc08dc | 1670 | BLOCK_INPUT; |
178c5d9c | 1671 | |
08dc08dc GM |
1672 | if (!face->foreground_defaulted_p) |
1673 | { | |
1674 | x_free_colors (f, &face->foreground, 1); | |
1675 | IF_DEBUG (--ncolors_allocated); | |
1676 | } | |
178c5d9c | 1677 | |
08dc08dc GM |
1678 | if (!face->background_defaulted_p) |
1679 | { | |
1680 | x_free_colors (f, &face->background, 1); | |
1681 | IF_DEBUG (--ncolors_allocated); | |
1682 | } | |
82641697 | 1683 | |
08dc08dc GM |
1684 | if (face->underline_p |
1685 | && !face->underline_defaulted_p) | |
1686 | { | |
1687 | x_free_colors (f, &face->underline_color, 1); | |
1688 | IF_DEBUG (--ncolors_allocated); | |
1689 | } | |
82641697 | 1690 | |
08dc08dc GM |
1691 | if (face->overline_p |
1692 | && !face->overline_color_defaulted_p) | |
1693 | { | |
1694 | x_free_colors (f, &face->overline_color, 1); | |
1695 | IF_DEBUG (--ncolors_allocated); | |
1696 | } | |
82641697 | 1697 | |
08dc08dc GM |
1698 | if (face->strike_through_p |
1699 | && !face->strike_through_color_defaulted_p) | |
1700 | { | |
1701 | x_free_colors (f, &face->strike_through_color, 1); | |
1702 | IF_DEBUG (--ncolors_allocated); | |
1703 | } | |
82641697 | 1704 | |
08dc08dc GM |
1705 | if (face->box != FACE_NO_BOX |
1706 | && !face->box_color_defaulted_p) | |
1707 | { | |
1708 | x_free_colors (f, &face->box_color, 1); | |
1709 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1710 | } |
08dc08dc GM |
1711 | |
1712 | UNBLOCK_INPUT; | |
2d764c78 | 1713 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1714 | } |
08dc08dc | 1715 | |
c3cee013 | 1716 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1717 | |
1718 | ||
1719 | \f | |
1720 | /*********************************************************************** | |
1721 | XLFD Font Names | |
1722 | ***********************************************************************/ | |
1723 | ||
1724 | /* An enumerator for each field of an XLFD font name. */ | |
1725 | ||
1726 | enum xlfd_field | |
1727 | { | |
1728 | XLFD_FOUNDRY, | |
1729 | XLFD_FAMILY, | |
1730 | XLFD_WEIGHT, | |
1731 | XLFD_SLANT, | |
1732 | XLFD_SWIDTH, | |
1733 | XLFD_ADSTYLE, | |
1734 | XLFD_PIXEL_SIZE, | |
1735 | XLFD_POINT_SIZE, | |
1736 | XLFD_RESX, | |
1737 | XLFD_RESY, | |
1738 | XLFD_SPACING, | |
1739 | XLFD_AVGWIDTH, | |
1740 | XLFD_REGISTRY, | |
1741 | XLFD_ENCODING, | |
1742 | XLFD_LAST | |
1743 | }; | |
1744 | ||
178c5d9c | 1745 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1746 | the XLFD specification. */ |
1747 | ||
1748 | enum xlfd_slant | |
1749 | { | |
1750 | XLFD_SLANT_UNKNOWN, | |
1751 | XLFD_SLANT_ROMAN, | |
1752 | XLFD_SLANT_ITALIC, | |
1753 | XLFD_SLANT_OBLIQUE, | |
1754 | XLFD_SLANT_REVERSE_ITALIC, | |
1755 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1756 | XLFD_SLANT_OTHER | |
1757 | }; | |
1758 | ||
1759 | /* Relative font weight according to XLFD documentation. */ | |
1760 | ||
1761 | enum xlfd_weight | |
1762 | { | |
1763 | XLFD_WEIGHT_UNKNOWN, | |
1764 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1765 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1766 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1767 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1768 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1769 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1770 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1771 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1772 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1773 | }; | |
1774 | ||
1775 | /* Relative proportionate width. */ | |
1776 | ||
1777 | enum xlfd_swidth | |
1778 | { | |
1779 | XLFD_SWIDTH_UNKNOWN, | |
1780 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1781 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1782 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1783 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1784 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1785 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1786 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1787 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1788 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1789 | }; | |
1790 | ||
1791 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1792 | names to numeric and symbolic values. */ | |
1793 | ||
1794 | struct table_entry | |
1795 | { | |
1796 | char *name; | |
1797 | int numeric; | |
1798 | Lisp_Object *symbol; | |
1799 | }; | |
1800 | ||
1801 | /* Table of XLFD slant names and their numeric and symbolic | |
1802 | representations. This table must be sorted by slant names in | |
1803 | ascending order. */ | |
1804 | ||
1805 | static struct table_entry slant_table[] = | |
1806 | { | |
1807 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1808 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1809 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1810 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1811 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1812 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1813 | }; | |
1814 | ||
1815 | /* Table of XLFD weight names. This table must be sorted by weight | |
1816 | names in ascending order. */ | |
1817 | ||
1818 | static struct table_entry weight_table[] = | |
1819 | { | |
1820 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1821 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1822 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1823 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1824 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1825 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1826 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1827 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1828 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1829 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1830 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1831 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1832 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1833 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1834 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1835 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1836 | }; | |
1837 | ||
1838 | /* Table of XLFD width names. This table must be sorted by width | |
1839 | names in ascending order. */ | |
1840 | ||
1841 | static struct table_entry swidth_table[] = | |
1842 | { | |
1843 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1844 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1845 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1846 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1847 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1848 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1849 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1850 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1851 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1852 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1853 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1854 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1855 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1856 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1857 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1858 | }; | |
1859 | ||
1860 | /* Structure used to hold the result of splitting font names in XLFD | |
1861 | format into their fields. */ | |
1862 | ||
1863 | struct font_name | |
1864 | { | |
1865 | /* The original name which is modified destructively by | |
1866 | split_font_name. The pointer is kept here to be able to free it | |
1867 | if it was allocated from the heap. */ | |
1868 | char *name; | |
1869 | ||
1870 | /* Font name fields. Each vector element points into `name' above. | |
1871 | Fields are NUL-terminated. */ | |
1872 | char *fields[XLFD_LAST]; | |
1873 | ||
1874 | /* Numeric values for those fields that interest us. See | |
1875 | split_font_name for which these are. */ | |
1876 | int numeric[XLFD_LAST]; | |
8e1b21a7 KH |
1877 | |
1878 | /* Lower value mean higher priority. */ | |
1879 | int registry_priority; | |
82641697 GM |
1880 | }; |
1881 | ||
1882 | /* The frame in effect when sorting font names. Set temporarily in | |
1883 | sort_fonts so that it is available in font comparison functions. */ | |
1884 | ||
1885 | static struct frame *font_frame; | |
1886 | ||
1887 | /* Order by which font selection chooses fonts. The default values | |
1888 | mean `first, find a best match for the font width, then for the | |
1889 | font height, then for weight, then for slant.' This variable can be | |
1890 | set via set-face-font-sort-order. */ | |
1891 | ||
1a578e9b | 1892 | #ifdef macintosh |
a08332c0 GM |
1893 | static int font_sort_order[4] = { |
1894 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1895 | }; | |
1a578e9b | 1896 | #else |
82641697 | 1897 | static int font_sort_order[4]; |
1a578e9b | 1898 | #endif |
82641697 GM |
1899 | |
1900 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1901 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1902 | is a pointer to the matching table entry or null if no table entry | |
1903 | matches. */ | |
1904 | ||
1905 | static struct table_entry * | |
1906 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1907 | struct table_entry *table; | |
1908 | int dim; | |
1909 | struct font_name *font; | |
1910 | int field_index; | |
1911 | { | |
1912 | /* Function split_font_name converts fields to lower-case, so there | |
1913 | is no need to use xstrlwr or xstricmp here. */ | |
1914 | char *s = font->fields[field_index]; | |
1915 | int low, mid, high, cmp; | |
1916 | ||
1917 | low = 0; | |
1918 | high = dim - 1; | |
1919 | ||
1920 | while (low <= high) | |
1921 | { | |
1922 | mid = (low + high) / 2; | |
1923 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1924 | |
82641697 GM |
1925 | if (cmp < 0) |
1926 | low = mid + 1; | |
1927 | else if (cmp > 0) | |
1928 | high = mid - 1; | |
1929 | else | |
1930 | return table + mid; | |
1931 | } | |
1932 | ||
1933 | return NULL; | |
1934 | } | |
1935 | ||
1936 | ||
1937 | /* Return a numeric representation for font name field | |
1938 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1939 | has DIM entries. Value is the numeric value found or DFLT if no | |
1940 | table entry matches. This function is used to translate weight, | |
1941 | slant, and swidth names of XLFD font names to numeric values. */ | |
1942 | ||
1943 | static INLINE int | |
1944 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1945 | struct table_entry *table; | |
1946 | int dim; | |
1947 | struct font_name *font; | |
1948 | int field_index; | |
1949 | int dflt; | |
1950 | { | |
1951 | struct table_entry *p; | |
1952 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1953 | return p ? p->numeric : dflt; | |
1954 | } | |
1955 | ||
1956 | ||
1957 | /* Return a symbolic representation for font name field | |
1958 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1959 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1960 | table entry matches. This function is used to translate weight, | |
1961 | slant, and swidth names of XLFD font names to symbols. */ | |
1962 | ||
1963 | static INLINE Lisp_Object | |
1964 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1965 | struct table_entry *table; | |
1966 | int dim; | |
1967 | struct font_name *font; | |
1968 | int field_index; | |
6fc556fd | 1969 | Lisp_Object dflt; |
82641697 GM |
1970 | { |
1971 | struct table_entry *p; | |
1972 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1973 | return p ? *p->symbol : dflt; | |
1974 | } | |
1975 | ||
1976 | ||
1977 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1978 | ||
1979 | static INLINE int | |
1980 | xlfd_numeric_slant (font) | |
1981 | struct font_name *font; | |
1982 | { | |
1983 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1984 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1985 | } | |
1986 | ||
1987 | ||
1988 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1989 | ||
1990 | static INLINE Lisp_Object | |
1991 | xlfd_symbolic_slant (font) | |
1992 | struct font_name *font; | |
1993 | { | |
1994 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1995 | font, XLFD_SLANT, Qnormal); | |
1996 | } | |
1997 | ||
1998 | ||
1999 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2000 | ||
2001 | static INLINE int | |
2002 | xlfd_numeric_weight (font) | |
2003 | struct font_name *font; | |
2004 | { | |
2005 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2006 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2007 | } | |
2008 | ||
2009 | ||
2010 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2011 | ||
2012 | static INLINE Lisp_Object | |
2013 | xlfd_symbolic_weight (font) | |
2014 | struct font_name *font; | |
2015 | { | |
2016 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2017 | font, XLFD_WEIGHT, Qnormal); | |
2018 | } | |
2019 | ||
2020 | ||
2021 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2022 | name fields are found in FONT. */ | |
2023 | ||
2024 | static INLINE int | |
2025 | xlfd_numeric_swidth (font) | |
2026 | struct font_name *font; | |
2027 | { | |
2028 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2029 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2030 | } | |
2031 | ||
2032 | ||
2033 | /* Return a symbolic value for the swidth of FONT. */ | |
2034 | ||
2035 | static INLINE Lisp_Object | |
2036 | xlfd_symbolic_swidth (font) | |
2037 | struct font_name *font; | |
2038 | { | |
2039 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2040 | font, XLFD_SWIDTH, Qnormal); | |
2041 | } | |
178c5d9c | 2042 | |
82641697 GM |
2043 | |
2044 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2045 | entries. Value is a pointer to the matching table entry or null if | |
2046 | no element of TABLE contains SYMBOL. */ | |
2047 | ||
2048 | static struct table_entry * | |
2049 | face_value (table, dim, symbol) | |
2050 | struct table_entry *table; | |
2051 | int dim; | |
2052 | Lisp_Object symbol; | |
2053 | { | |
2054 | int i; | |
2055 | ||
2056 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2057 | |
82641697 GM |
2058 | for (i = 0; i < dim; ++i) |
2059 | if (EQ (*table[i].symbol, symbol)) | |
2060 | break; | |
2061 | ||
2062 | return i < dim ? table + i : NULL; | |
2063 | } | |
2064 | ||
2065 | ||
2066 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2067 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2068 | ||
2069 | static INLINE int | |
2070 | face_numeric_value (table, dim, symbol) | |
2071 | struct table_entry *table; | |
2072 | int dim; | |
2073 | Lisp_Object symbol; | |
2074 | { | |
2075 | struct table_entry *p = face_value (table, dim, symbol); | |
2076 | return p ? p->numeric : -1; | |
2077 | } | |
2078 | ||
2079 | ||
2080 | /* Return a numeric value representing the weight specified by Lisp | |
2081 | symbol WEIGHT. Value is one of the enumerators of enum | |
2082 | xlfd_weight. */ | |
2083 | ||
2084 | static INLINE int | |
2085 | face_numeric_weight (weight) | |
2086 | Lisp_Object weight; | |
2087 | { | |
2088 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2089 | } | |
2090 | ||
2091 | ||
2092 | /* Return a numeric value representing the slant specified by Lisp | |
2093 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2094 | ||
2095 | static INLINE int | |
2096 | face_numeric_slant (slant) | |
2097 | Lisp_Object slant; | |
2098 | { | |
2099 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2100 | } | |
2101 | ||
2102 | ||
2103 | /* Return a numeric value representing the swidth specified by Lisp | |
2104 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2105 | ||
2106 | static int | |
2107 | face_numeric_swidth (width) | |
2108 | Lisp_Object width; | |
2109 | { | |
2110 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2111 | } | |
2112 | ||
2113 | ||
c3cee013 | 2114 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2115 | |
2116 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2117 | ||
2118 | static INLINE int | |
2119 | xlfd_fixed_p (font) | |
2120 | struct font_name *font; | |
2121 | { | |
2122 | /* Function split_font_name converts fields to lower-case, so there | |
2123 | is no need to use tolower here. */ | |
2124 | return *font->fields[XLFD_SPACING] != 'p'; | |
2125 | } | |
2126 | ||
2127 | ||
2128 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2129 | ||
2130 | The actual height of the font when displayed on F depends on the | |
2131 | resolution of both the font and frame. For example, a 10pt font | |
2132 | designed for a 100dpi display will display larger than 10pt on a | |
2133 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2134 | display one is using. For example, some intlfonts are available in | |
2135 | 72dpi versions, only.) | |
2136 | ||
2137 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2138 | be determined. */ | |
2139 | ||
2140 | static INLINE int | |
2141 | xlfd_point_size (f, font) | |
2142 | struct frame *f; | |
2143 | struct font_name *font; | |
2144 | { | |
2145 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2146 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2147 | double pixel; | |
82641697 GM |
2148 | int real_pt; |
2149 | ||
933b0249 GM |
2150 | if (*pixel_field == '[') |
2151 | { | |
2152 | /* The pixel size field is `[A B C D]' which specifies | |
2153 | a transformation matrix. | |
2154 | ||
2155 | A B 0 | |
2156 | C D 0 | |
2157 | 0 0 1 | |
2158 | ||
2159 | by which all glyphs of the font are transformed. The spec | |
2160 | says that s scalar value N for the pixel size is equivalent | |
2161 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2162 | char *start = pixel_field + 1, *end; | |
2163 | double matrix[4]; | |
2164 | int i; | |
2165 | ||
2166 | for (i = 0; i < 4; ++i) | |
2167 | { | |
2168 | matrix[i] = strtod (start, &end); | |
2169 | start = end; | |
2170 | } | |
2171 | ||
7eb4b061 | 2172 | pixel = matrix[3]; |
933b0249 GM |
2173 | } |
2174 | else | |
2175 | pixel = atoi (pixel_field); | |
2176 | ||
2177 | if (pixel == 0) | |
82641697 GM |
2178 | real_pt = 0; |
2179 | else | |
933b0249 | 2180 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2181 | |
2182 | return real_pt; | |
2183 | } | |
2184 | ||
2185 | ||
39506348 KH |
2186 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2187 | of frame F. This function is used to guess a point size of font | |
2188 | when only the pixel height of the font is available. */ | |
2189 | ||
2190 | static INLINE int | |
2191 | pixel_point_size (f, pixel) | |
2192 | struct frame *f; | |
2193 | int pixel; | |
2194 | { | |
2195 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2196 | double real_pt; | |
2197 | int int_pt; | |
2198 | ||
c660ce4e GM |
2199 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2200 | point size of one dot. */ | |
2201 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2202 | int_pt = real_pt + 0.5; |
2203 | ||
2204 | return int_pt; | |
2205 | } | |
2206 | ||
2207 | ||
82641697 GM |
2208 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2209 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2210 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2211 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2212 | zero if the font name doesn't have the format we expect. The | |
2213 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2214 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2215 | |
2216 | static int | |
2217 | split_font_name (f, font, numeric_p) | |
2218 | struct frame *f; | |
2219 | struct font_name *font; | |
2220 | int numeric_p; | |
2221 | { | |
2222 | int i = 0; | |
2223 | int success_p; | |
2224 | ||
2225 | if (*font->name == '-') | |
2226 | { | |
2227 | char *p = xstrlwr (font->name) + 1; | |
2228 | ||
7b16a6bf | 2229 | while (i < XLFD_LAST) |
82641697 GM |
2230 | { |
2231 | font->fields[i] = p; | |
7b16a6bf | 2232 | ++i; |
933b0249 GM |
2233 | |
2234 | /* Pixel and point size may be of the form `[....]'. For | |
2235 | BNF, see XLFD spec, chapter 4. Negative values are | |
2236 | indicated by tilde characters which we replace with | |
2237 | `-' characters, here. */ | |
2238 | if (*p == '[' | |
d5188d8c GM |
2239 | && (i - 1 == XLFD_PIXEL_SIZE |
2240 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2241 | { |
2242 | char *start, *end; | |
2243 | int j; | |
2244 | ||
2245 | for (++p; *p && *p != ']'; ++p) | |
2246 | if (*p == '~') | |
2247 | *p = '-'; | |
2248 | ||
2249 | /* Check that the matrix contains 4 floating point | |
2250 | numbers. */ | |
3849cbf4 | 2251 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2252 | j < 4; |
2253 | ++j, start = end) | |
2254 | if (strtod (start, &end) == 0 && start == end) | |
2255 | break; | |
2256 | ||
2257 | if (j < 4) | |
2258 | break; | |
2259 | } | |
178c5d9c | 2260 | |
82641697 GM |
2261 | while (*p && *p != '-') |
2262 | ++p; | |
178c5d9c | 2263 | |
82641697 GM |
2264 | if (*p != '-') |
2265 | break; | |
178c5d9c | 2266 | |
82641697 GM |
2267 | *p++ = 0; |
2268 | } | |
2269 | } | |
2270 | ||
2271 | success_p = i == XLFD_LAST; | |
2272 | ||
2273 | /* If requested, and font name was in the expected format, | |
2274 | compute numeric values for some fields. */ | |
2275 | if (numeric_p && success_p) | |
2276 | { | |
2277 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2278 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2279 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2280 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2281 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2282 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
82641697 GM |
2283 | } |
2284 | ||
8e1b21a7 KH |
2285 | /* Initialize it to zero. It will be overridden by font_list while |
2286 | trying alternate registries. */ | |
2287 | font->registry_priority = 0; | |
2288 | ||
82641697 GM |
2289 | return success_p; |
2290 | } | |
2291 | ||
2292 | ||
2293 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2294 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2295 | |
82641697 GM |
2296 | static char * |
2297 | build_font_name (font) | |
2298 | struct font_name *font; | |
2299 | { | |
2300 | int i; | |
2301 | int size = 100; | |
2302 | char *font_name = (char *) xmalloc (size); | |
2303 | int total_length = 0; | |
2304 | ||
2305 | for (i = 0; i < XLFD_LAST; ++i) | |
2306 | { | |
2307 | /* Add 1 because of the leading `-'. */ | |
2308 | int len = strlen (font->fields[i]) + 1; | |
2309 | ||
2310 | /* Reallocate font_name if necessary. Add 1 for the final | |
2311 | NUL-byte. */ | |
2312 | if (total_length + len + 1 >= size) | |
2313 | { | |
2314 | int new_size = max (2 * size, size + len + 1); | |
2315 | int sz = new_size * sizeof *font_name; | |
2316 | font_name = (char *) xrealloc (font_name, sz); | |
2317 | size = new_size; | |
2318 | } | |
2319 | ||
2320 | font_name[total_length] = '-'; | |
2321 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2322 | total_length += len; | |
2323 | } | |
2324 | ||
2325 | font_name[total_length] = 0; | |
2326 | return font_name; | |
2327 | } | |
2328 | ||
2329 | ||
2330 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2331 | itself and all `name' fields in its elements. */ | |
2332 | ||
2333 | static INLINE void | |
2334 | free_font_names (fonts, n) | |
2335 | struct font_name *fonts; | |
2336 | int n; | |
2337 | { | |
2338 | while (n) | |
2339 | xfree (fonts[--n].name); | |
2340 | xfree (fonts); | |
2341 | } | |
2342 | ||
2343 | ||
2344 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2345 | elements using qsort and comparison function CMPFN. F is the frame | |
2346 | on which the fonts will be used. The global variable font_frame | |
2347 | is temporarily set to F to make it available in CMPFN. */ | |
2348 | ||
2349 | static INLINE void | |
2350 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2351 | struct frame *f; | |
2352 | struct font_name *fonts; | |
2353 | int nfonts; | |
2354 | int (*cmpfn) P_ ((const void *, const void *)); | |
2355 | { | |
2356 | font_frame = f; | |
2357 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2358 | font_frame = NULL; | |
2359 | } | |
2360 | ||
2361 | ||
2362 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2363 | display in x_display_list. FONTS is a pointer to a vector of | |
2364 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2365 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2366 | found matching PATTERN. |
82641697 GM |
2367 | |
2368 | For all fonts found, set FONTS[i].name to the name of the font, | |
2369 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2370 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2371 | |
2372 | static int | |
702a1e8e | 2373 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p) |
82641697 GM |
2374 | struct frame *f; |
2375 | char *pattern; | |
2376 | struct font_name *fonts; | |
2377 | int nfonts, try_alternatives_p; | |
82641697 | 2378 | { |
702a1e8e | 2379 | int n, nignored; |
82641697 | 2380 | |
c3cee013 JR |
2381 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2382 | better to do it the other way around. */ | |
2383 | Lisp_Object lfonts; | |
2384 | Lisp_Object lpattern, tem; | |
2385 | ||
c3cee013 JR |
2386 | lpattern = build_string (pattern); |
2387 | ||
2388 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2389 | #ifdef WINDOWSNT |
a86110a8 | 2390 | BLOCK_INPUT; |
c3cee013 | 2391 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2392 | UNBLOCK_INPUT; |
d26d6fd9 | 2393 | #else |
702a1e8e | 2394 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2395 | #endif |
c3cee013 | 2396 | |
d26d6fd9 GM |
2397 | /* Make a copy of the font names we got from X, and |
2398 | split them into fields. */ | |
702a1e8e GM |
2399 | n = nignored = 0; |
2400 | for (tem = lfonts; CONSP (tem) && n < nfonts; tem = XCDR (tem)) | |
c3cee013 | 2401 | { |
d26d6fd9 GM |
2402 | Lisp_Object elt, tail; |
2403 | char *name = XSTRING (XCAR (tem))->data; | |
82641697 | 2404 | |
702a1e8e | 2405 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2406 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2407 | { |
d26d6fd9 GM |
2408 | elt = XCAR (tail); |
2409 | if (STRINGP (elt) | |
2410 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2411 | break; | |
2412 | } | |
2413 | if (!NILP (tail)) | |
702a1e8e GM |
2414 | { |
2415 | ++nignored; | |
2416 | continue; | |
2417 | } | |
c824bfbc | 2418 | |
d26d6fd9 GM |
2419 | /* Make a copy of the font name. */ |
2420 | fonts[n].name = xstrdup (name); | |
82641697 | 2421 | |
702a1e8e | 2422 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2423 | { |
702a1e8e GM |
2424 | if (font_scalable_p (fonts + n) |
2425 | && !may_use_scalable_font_p (name)) | |
2426 | { | |
2427 | ++nignored; | |
2428 | xfree (fonts[n].name); | |
2429 | } | |
82641697 | 2430 | else |
d26d6fd9 | 2431 | ++n; |
82641697 | 2432 | } |
d26d6fd9 | 2433 | else |
702a1e8e GM |
2434 | xfree (fonts[n].name); |
2435 | } | |
2436 | ||
82641697 GM |
2437 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2438 | if (n == 0 && try_alternatives_p) | |
2439 | { | |
2440 | Lisp_Object list = Valternate_fontname_alist; | |
2441 | ||
2442 | while (CONSP (list)) | |
2443 | { | |
2444 | Lisp_Object entry = XCAR (list); | |
2445 | if (CONSP (entry) | |
2446 | && STRINGP (XCAR (entry)) | |
2447 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2448 | break; | |
2449 | list = XCDR (list); | |
2450 | } | |
2451 | ||
2452 | if (CONSP (list)) | |
2453 | { | |
2454 | Lisp_Object patterns = XCAR (list); | |
2455 | Lisp_Object name; | |
178c5d9c | 2456 | |
82641697 GM |
2457 | while (CONSP (patterns) |
2458 | /* If list is screwed up, give up. */ | |
2459 | && (name = XCAR (patterns), | |
2460 | STRINGP (name)) | |
2461 | /* Ignore patterns equal to PATTERN because we tried that | |
2462 | already with no success. */ | |
2463 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2464 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
702a1e8e | 2465 | fonts, nfonts, 0), |
82641697 GM |
2466 | n == 0))) |
2467 | patterns = XCDR (patterns); | |
2468 | } | |
2469 | } | |
178c5d9c | 2470 | |
82641697 GM |
2471 | return n; |
2472 | } | |
178c5d9c | 2473 | |
82641697 | 2474 | |
82641697 GM |
2475 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2476 | using comparison function CMPFN. Value is the number of fonts | |
2477 | found. If value is non-zero, *FONTS is set to a vector of | |
2478 | font_name structures allocated from the heap containing matching | |
2479 | fonts. Each element of *FONTS contains a name member that is also | |
2480 | allocated from the heap. Font names in these structures are split | |
2481 | into fields. Use free_font_names to free such an array. */ | |
2482 | ||
2483 | static int | |
2484 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2485 | struct frame *f; | |
2486 | char *pattern; | |
2487 | int (*cmpfn) P_ ((const void *, const void *)); | |
2488 | struct font_name **fonts; | |
2489 | { | |
2490 | int nfonts; | |
178c5d9c | 2491 | |
82641697 | 2492 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c GM |
2493 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2494 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2495 | nfonts = XFASTINT (Vfont_list_limit); | |
178c5d9c | 2496 | |
82641697 | 2497 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
702a1e8e | 2498 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1); |
178c5d9c SS |
2499 | |
2500 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2501 | fonts were found, make sure to set *FONTS to null. */ |
2502 | if (nfonts) | |
2503 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2504 | else | |
2505 | { | |
2506 | xfree (*fonts); | |
2507 | *fonts = NULL; | |
2508 | } | |
2509 | ||
2510 | return nfonts; | |
2511 | } | |
2512 | ||
2513 | ||
2514 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2515 | strcmp. Sort order is given by the global variable | |
2516 | font_sort_order. Font names are sorted so that, everything else | |
2517 | being equal, fonts with a resolution closer to that of the frame on | |
2518 | which they are used are listed first. The global variable | |
2519 | font_frame is the frame on which we operate. */ | |
2520 | ||
2521 | static int | |
2522 | cmp_font_names (a, b) | |
2523 | const void *a, *b; | |
2524 | { | |
2525 | struct font_name *x = (struct font_name *) a; | |
2526 | struct font_name *y = (struct font_name *) b; | |
2527 | int cmp; | |
2528 | ||
2529 | /* All strings have been converted to lower-case by split_font_name, | |
2530 | so we can use strcmp here. */ | |
2531 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2532 | if (cmp == 0) | |
2533 | { | |
2534 | int i; | |
178c5d9c | 2535 | |
82641697 GM |
2536 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2537 | { | |
2538 | int j = font_sort_order[i]; | |
2539 | cmp = x->numeric[j] - y->numeric[j]; | |
2540 | } | |
2541 | ||
2542 | if (cmp == 0) | |
2543 | { | |
2544 | /* Everything else being equal, we prefer fonts with an | |
2545 | y-resolution closer to that of the frame. */ | |
2546 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2547 | int x_resy = x->numeric[XLFD_RESY]; | |
2548 | int y_resy = y->numeric[XLFD_RESY]; | |
2549 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2550 | } | |
2551 | } | |
2552 | ||
2553 | return cmp; | |
2554 | } | |
2555 | ||
2556 | ||
2557 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2558 | is non-nil list fonts matching that pattern. Otherwise, if |
2559 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2560 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2561 | structures allocated from the heap containing the fonts found. | |
2562 | Value is the number of fonts found. */ | |
82641697 GM |
2563 | |
2564 | static int | |
32fcc231 | 2565 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2566 | struct frame *f; |
39506348 | 2567 | Lisp_Object pattern, family, registry; |
82641697 GM |
2568 | struct font_name **fonts; |
2569 | { | |
39506348 KH |
2570 | char *pattern_str, *family_str, *registry_str; |
2571 | ||
2572 | if (NILP (pattern)) | |
82641697 | 2573 | { |
39506348 KH |
2574 | family_str = (NILP (family) ? "*" : (char *) XSTRING (family)->data); |
2575 | registry_str = (NILP (registry) ? "*" : (char *) XSTRING (registry)->data); | |
178c5d9c | 2576 | |
39506348 | 2577 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2578 | + strlen (registry_str) |
2579 | + 10); | |
2580 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2581 | strcat (pattern_str, family_str); | |
2582 | strcat (pattern_str, "-*-"); | |
2583 | strcat (pattern_str, registry_str); | |
2584 | if (!index (registry_str, '-')) | |
2585 | { | |
2586 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2587 | strcat (pattern_str, "-*"); | |
2588 | else | |
2589 | strcat (pattern_str, "*-*"); | |
2590 | } | |
82641697 | 2591 | } |
39506348 KH |
2592 | else |
2593 | pattern_str = (char *) XSTRING (pattern)->data; | |
178c5d9c | 2594 | |
39506348 | 2595 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2596 | } |
2597 | ||
2598 | ||
8e1b21a7 KH |
2599 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2600 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2601 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2602 | freed. */ | |
2603 | ||
2604 | static struct font_name * | |
2605 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2606 | struct font_name *fonts1, *fonts2; | |
2607 | int nfonts1, nfonts2; | |
2608 | { | |
2609 | int new_nfonts = nfonts1 + nfonts2; | |
2610 | struct font_name *new_fonts; | |
2611 | ||
2612 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2613 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2614 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2615 | xfree (fonts1); | |
2616 | xfree (fonts2); | |
2617 | return new_fonts; | |
2618 | } | |
2619 | ||
2620 | ||
32fcc231 GM |
2621 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2622 | ||
2623 | If PATTERN is non-nil list fonts matching that pattern. | |
2624 | ||
8e1b21a7 KH |
2625 | If REGISTRY is non-nil, return fonts with that registry and the |
2626 | alternative registries from Vface_alternative_font_registry_alist. | |
32fcc231 GM |
2627 | |
2628 | If REGISTRY is nil return fonts of any registry. | |
2629 | ||
2630 | Set *FONTS to a vector of font_name structures allocated from the | |
2631 | heap containing the fonts found. Value is the number of fonts | |
2632 | found. */ | |
2633 | ||
2634 | static int | |
2635 | font_list (f, pattern, family, registry, fonts) | |
2636 | struct frame *f; | |
2637 | Lisp_Object pattern, family, registry; | |
2638 | struct font_name **fonts; | |
2639 | { | |
2640 | int nfonts = font_list_1 (f, pattern, family, registry, fonts); | |
2641 | ||
8e1b21a7 | 2642 | if (!NILP (registry) |
32fcc231 GM |
2643 | && CONSP (Vface_alternative_font_registry_alist)) |
2644 | { | |
2645 | Lisp_Object alter; | |
2646 | ||
2647 | alter = Fassoc (registry, Vface_alternative_font_registry_alist); | |
2648 | if (CONSP (alter)) | |
2649 | { | |
8e1b21a7 KH |
2650 | int reg_prio, i; |
2651 | ||
2652 | for (alter = XCDR (alter), reg_prio = 1; | |
2653 | CONSP (alter); | |
2654 | alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2655 | if (STRINGP (XCAR (alter))) |
8e1b21a7 KH |
2656 | { |
2657 | int nfonts2; | |
2658 | struct font_name *fonts2; | |
2659 | ||
2660 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), | |
2661 | &fonts2); | |
2662 | for (i = 0; i < nfonts2; i++) | |
2663 | fonts2[i].registry_priority = reg_prio; | |
2664 | *fonts = (nfonts > 0 | |
2665 | ? concat_font_list (*fonts, nfonts, fonts2, nfonts2) | |
2666 | : fonts2); | |
2667 | nfonts += nfonts2; | |
2668 | } | |
32fcc231 GM |
2669 | } |
2670 | } | |
2671 | ||
2672 | return nfonts; | |
2673 | } | |
2674 | ||
2675 | ||
82641697 | 2676 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2677 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2678 | entries. */ |
2679 | ||
2680 | static void | |
2681 | remove_duplicates (list) | |
2682 | Lisp_Object list; | |
2683 | { | |
2684 | Lisp_Object tail = list; | |
178c5d9c | 2685 | |
82641697 GM |
2686 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2687 | { | |
2688 | Lisp_Object next = XCDR (tail); | |
2689 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2690 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2691 | else |
2692 | tail = XCDR (tail); | |
2693 | } | |
2694 | } | |
2695 | ||
2696 | ||
92610620 | 2697 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2698 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2699 | If FAMILY is omitted or nil, list all families. |
2700 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2701 | `?' and `*'. | |
2702 | If FRAME is omitted or nil, use the selected frame. | |
2703 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2704 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2705 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2706 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2707 | width, weight and slant of the font. These symbols are the same as for | |
2708 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2709 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2710 | giving the registry and encoding of the font. | |
2711 | The result list is sorted according to the current setting of | |
7ee72033 MB |
2712 | the face font sort order. */) |
2713 | (family, frame) | |
82641697 GM |
2714 | Lisp_Object family, frame; |
2715 | { | |
2716 | struct frame *f = check_x_frame (frame); | |
2717 | struct font_name *fonts; | |
2718 | int i, nfonts; | |
2719 | Lisp_Object result; | |
2720 | struct gcpro gcpro1; | |
82641697 | 2721 | |
39506348 | 2722 | if (!NILP (family)) |
b7826503 | 2723 | CHECK_STRING (family); |
178c5d9c | 2724 | |
82641697 GM |
2725 | result = Qnil; |
2726 | GCPRO1 (result); | |
39506348 | 2727 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2728 | for (i = nfonts - 1; i >= 0; --i) |
2729 | { | |
057df17c GM |
2730 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2731 | char *tem; | |
82641697 | 2732 | |
82641697 GM |
2733 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2734 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2735 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2736 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2737 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2738 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2739 | tem = build_font_name (fonts + i); |
2740 | ASET (v, 6, build_string (tem)); | |
2741 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2742 | fonts[i].fields[XLFD_ENCODING]); | |
2743 | ASET (v, 7, build_string (tem)); | |
2744 | xfree (tem); | |
178c5d9c | 2745 | |
82641697 | 2746 | result = Fcons (v, result); |
82641697 GM |
2747 | } |
2748 | ||
2749 | remove_duplicates (result); | |
2750 | free_font_names (fonts, nfonts); | |
2751 | UNGCPRO; | |
2752 | return result; | |
2753 | } | |
2754 | ||
2755 | ||
2756 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2757 | 0, 1, 0, | |
7ee72033 | 2758 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
2759 | If FRAME is omitted or nil, use the selected frame. |
2760 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
2761 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
2762 | are fixed-pitch. */) |
2763 | (frame) | |
82641697 GM |
2764 | Lisp_Object frame; |
2765 | { | |
2766 | struct frame *f = check_x_frame (frame); | |
2767 | int nfonts, i; | |
2768 | struct font_name *fonts; | |
2769 | Lisp_Object result; | |
2770 | struct gcpro gcpro1; | |
057df17c GM |
2771 | int count = specpdl_ptr - specpdl; |
2772 | int limit; | |
2773 | ||
2774 | /* Let's consider all fonts. Increase the limit for matching | |
2775 | fonts until we have them all. */ | |
2776 | for (limit = 500;;) | |
2777 | { | |
2778 | specbind (intern ("font-list-limit"), make_number (limit)); | |
39506348 | 2779 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); |
178c5d9c | 2780 | |
057df17c GM |
2781 | if (nfonts == limit) |
2782 | { | |
2783 | free_font_names (fonts, nfonts); | |
2784 | limit *= 2; | |
2785 | } | |
2786 | else | |
2787 | break; | |
2788 | } | |
178c5d9c | 2789 | |
82641697 GM |
2790 | result = Qnil; |
2791 | GCPRO1 (result); | |
2792 | for (i = nfonts - 1; i >= 0; --i) | |
2793 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2794 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2795 | result); | |
2796 | ||
2797 | remove_duplicates (result); | |
2798 | free_font_names (fonts, nfonts); | |
2799 | UNGCPRO; | |
057df17c | 2800 | return unbind_to (count, result); |
82641697 GM |
2801 | } |
2802 | ||
2803 | ||
2804 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 2805 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
2806 | If optional arguments FACE and FRAME are specified, return only fonts |
2807 | the same size as FACE on FRAME. | |
2808 | PATTERN is a string, perhaps with wildcard characters; | |
2809 | the * character matches any substring, and | |
2810 | the ? character matches any single character. | |
2811 | PATTERN is case-insensitive. | |
2812 | FACE is a face name--a symbol. | |
2813 | ||
2814 | The return value is a list of strings, suitable as arguments to | |
2815 | set-face-font. | |
2816 | ||
2817 | Fonts Emacs can't use may or may not be excluded | |
2818 | even if they match PATTERN and FACE. | |
2819 | The optional fourth argument MAXIMUM sets a limit on how many | |
2820 | fonts to match. The first MAXIMUM fonts are reported. | |
2821 | The optional fifth argument WIDTH, if specified, is a number of columns | |
2822 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
2823 | the WIDTH times as wide as FACE on FRAME. */) |
2824 | (pattern, face, frame, maximum, width) | |
82641697 GM |
2825 | Lisp_Object pattern, face, frame, maximum, width; |
2826 | { | |
2827 | struct frame *f; | |
2828 | int size; | |
2829 | int maxnames; | |
2830 | ||
2831 | check_x (); | |
b7826503 | 2832 | CHECK_STRING (pattern); |
178c5d9c | 2833 | |
82641697 GM |
2834 | if (NILP (maximum)) |
2835 | maxnames = 2000; | |
2836 | else | |
2837 | { | |
b7826503 | 2838 | CHECK_NATNUM (maximum); |
82641697 GM |
2839 | maxnames = XINT (maximum); |
2840 | } | |
2841 | ||
2842 | if (!NILP (width)) | |
b7826503 | 2843 | CHECK_NUMBER (width); |
82641697 GM |
2844 | |
2845 | /* We can't simply call check_x_frame because this function may be | |
2846 | called before any frame is created. */ | |
2847 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 2848 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
2849 | { |
2850 | /* Perhaps we have not yet created any frame. */ | |
2851 | f = NULL; | |
2852 | face = Qnil; | |
2853 | } | |
2854 | ||
2855 | /* Determine the width standard for comparison with the fonts we find. */ | |
2856 | ||
2857 | if (NILP (face)) | |
2858 | size = 0; | |
2859 | else | |
2860 | { | |
2861 | /* This is of limited utility since it works with character | |
2862 | widths. Keep it for compatibility. --gerd. */ | |
39506348 | 2863 | int face_id = lookup_named_face (f, face, 0); |
b5de343d GM |
2864 | struct face *face = (face_id < 0 |
2865 | ? NULL | |
2866 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 2867 | |
b5de343d | 2868 | if (face && face->font) |
c3cee013 | 2869 | size = FONT_WIDTH (face->font); |
82641697 | 2870 | else |
c3cee013 | 2871 | size = FONT_WIDTH (FRAME_FONT (f)); |
82641697 GM |
2872 | |
2873 | if (!NILP (width)) | |
2874 | size *= XINT (width); | |
2875 | } | |
2876 | ||
2877 | { | |
2878 | Lisp_Object args[2]; | |
2879 | ||
2880 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2881 | if (f == NULL) | |
2882 | /* We don't have to check fontsets. */ | |
2883 | return args[0]; | |
2884 | args[1] = list_fontsets (f, pattern, size); | |
2885 | return Fnconc (2, args); | |
2886 | } | |
2887 | } | |
2888 | ||
c3cee013 | 2889 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2890 | |
2891 | ||
2892 | \f | |
2893 | /*********************************************************************** | |
2894 | Lisp Faces | |
2895 | ***********************************************************************/ | |
2896 | ||
a08332c0 GM |
2897 | /* Access face attributes of face LFACE, a Lisp vector. */ |
2898 | ||
2899 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
2900 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
2901 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
2902 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
2903 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
2904 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
2905 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
2906 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
2907 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
2908 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
2909 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
2910 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
2911 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
2912 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
2913 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
2914 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
82641697 GM |
2915 | |
2916 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2917 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2918 | ||
2919 | #define LFACEP(LFACE) \ | |
2920 | (VECTORP (LFACE) \ | |
2921 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 2922 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 2923 | |
178c5d9c | 2924 | |
82641697 GM |
2925 | #if GLYPH_DEBUG |
2926 | ||
2927 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2928 | ||
2929 | static void | |
2930 | check_lface_attrs (attrs) | |
2931 | Lisp_Object *attrs; | |
2932 | { | |
2933 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2934 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2935 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2936 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
a08332c0 GM |
2937 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
2938 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); | |
82641697 | 2939 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
2940 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
2941 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
2942 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
2943 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2944 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2945 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2946 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2947 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2948 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2949 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2950 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2951 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2952 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2953 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2954 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2955 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2956 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2957 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2958 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2959 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2960 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2961 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2962 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2963 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2964 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2965 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2966 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2c20458f MB |
2967 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2968 | || NILP (attrs[LFACE_INHERIT_INDEX]) | |
2969 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
2970 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
2971 | #ifdef HAVE_WINDOW_SYSTEM |
2972 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2973 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 2974 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 2975 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
2976 | || NILP (attrs[LFACE_FONT_INDEX]) |
2977 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
2978 | #endif |
2979 | } | |
2980 | ||
2981 | ||
2982 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2983 | ||
2984 | static void | |
2985 | check_lface (lface) | |
2986 | Lisp_Object lface; | |
2987 | { | |
2988 | if (!NILP (lface)) | |
2989 | { | |
2990 | xassert (LFACEP (lface)); | |
2991 | check_lface_attrs (XVECTOR (lface)->contents); | |
2992 | } | |
2993 | } | |
2994 | ||
2995 | #else /* GLYPH_DEBUG == 0 */ | |
2996 | ||
2997 | #define check_lface_attrs(attrs) (void) 0 | |
2998 | #define check_lface(lface) (void) 0 | |
2999 | ||
3000 | #endif /* GLYPH_DEBUG == 0 */ | |
3001 | ||
3002 | ||
39506348 | 3003 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
c7ae3284 GM |
3004 | to make it a symvol. If FACE_NAME is an alias for another face, |
3005 | return that face's name. */ | |
3006 | ||
3007 | static Lisp_Object | |
3008 | resolve_face_name (face_name) | |
3009 | Lisp_Object face_name; | |
3010 | { | |
3011 | Lisp_Object aliased; | |
178c5d9c | 3012 | |
c7ae3284 GM |
3013 | if (STRINGP (face_name)) |
3014 | face_name = intern (XSTRING (face_name)->data); | |
3015 | ||
906b3b14 | 3016 | while (SYMBOLP (face_name)) |
c7ae3284 GM |
3017 | { |
3018 | aliased = Fget (face_name, Qface_alias); | |
3019 | if (NILP (aliased)) | |
3020 | break; | |
3021 | else | |
3022 | face_name = aliased; | |
3023 | } | |
3024 | ||
3025 | return face_name; | |
3026 | } | |
3027 | ||
3028 | ||
82641697 | 3029 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3030 | return the definition for new frames. FACE_NAME may be a string or |
3031 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3032 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3033 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3034 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3035 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3036 | name. */ | |
82641697 GM |
3037 | |
3038 | static INLINE Lisp_Object | |
3039 | lface_from_face_name (f, face_name, signal_p) | |
3040 | struct frame *f; | |
3041 | Lisp_Object face_name; | |
3042 | int signal_p; | |
3043 | { | |
c7ae3284 | 3044 | Lisp_Object lface; |
82641697 | 3045 | |
c7ae3284 | 3046 | face_name = resolve_face_name (face_name); |
92610620 | 3047 | |
82641697 GM |
3048 | if (f) |
3049 | lface = assq_no_quit (face_name, f->face_alist); | |
3050 | else | |
3051 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3052 | ||
3053 | if (CONSP (lface)) | |
3054 | lface = XCDR (lface); | |
3055 | else if (signal_p) | |
3056 | signal_error ("Invalid face", face_name); | |
3057 | ||
3058 | check_lface (lface); | |
3059 | return lface; | |
3060 | } | |
3061 | ||
3062 | ||
3063 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
3064 | frame F. Store the resulting attributes in ATTRS which must point | |
3065 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3066 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3067 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3068 | ||
3069 | static INLINE int | |
3070 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3071 | struct frame *f; | |
3072 | Lisp_Object face_name; | |
3073 | Lisp_Object *attrs; | |
3074 | int signal_p; | |
3075 | { | |
3076 | Lisp_Object lface; | |
3077 | int success_p; | |
3078 | ||
3079 | lface = lface_from_face_name (f, face_name, signal_p); | |
3080 | if (!NILP (lface)) | |
3081 | { | |
3082 | bcopy (XVECTOR (lface)->contents, attrs, | |
3083 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3084 | success_p = 1; | |
3085 | } | |
3086 | else | |
3087 | success_p = 0; | |
3088 | ||
3089 | return success_p; | |
3090 | } | |
3091 | ||
3092 | ||
3093 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
3094 | specified, i.e. are non-nil. */ | |
3095 | ||
3096 | static int | |
3097 | lface_fully_specified_p (attrs) | |
3098 | Lisp_Object *attrs; | |
3099 | { | |
3100 | int i; | |
3101 | ||
3102 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 GM |
3103 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
3104 | && i != LFACE_AVGWIDTH_INDEX) | |
6288c62f GM |
3105 | if (UNSPECIFIEDP (attrs[i])) |
3106 | break; | |
82641697 GM |
3107 | |
3108 | return i == LFACE_VECTOR_SIZE; | |
3109 | } | |
3110 | ||
c3cee013 | 3111 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3112 | |
39506348 KH |
3113 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3114 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3115 | unspecified attributes of LFACE. The exception is `font' | |
3116 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3117 | ||
3118 | If FONTNAME is not available on frame F, | |
3119 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3120 | If the fullname is not in a valid XLFD format, | |
3121 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3122 | in LFACE and return 1. | |
3123 | Otherwise, return 1. */ | |
178c5d9c | 3124 | |
82641697 | 3125 | static int |
39506348 | 3126 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3127 | struct frame *f; |
3128 | Lisp_Object lface; | |
39506348 | 3129 | Lisp_Object fontname; |
3221576b | 3130 | int force_p, may_fail_p; |
82641697 GM |
3131 | { |
3132 | struct font_name font; | |
3133 | char *buffer; | |
3134 | int pt; | |
39506348 KH |
3135 | int have_xlfd_p; |
3136 | int fontset; | |
3137 | char *font_name = XSTRING (fontname)->data; | |
3138 | struct font_info *font_info; | |
82641697 | 3139 | |
39506348 KH |
3140 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3141 | fontset = fs_query_fontset (fontname, 0); | |
3142 | if (fontset >= 0) | |
3143 | font_name = XSTRING (fontset_ascii (fontset))->data; | |
3144 | ||
3145 | /* Check if FONT_NAME is surely available on the system. Usually | |
3146 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3147 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3148 | caching it now is not futail because we anyway load the font | |
3149 | later. */ | |
3150 | BLOCK_INPUT; | |
3151 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
3152 | UNBLOCK_INPUT; | |
82641697 | 3153 | |
39506348 | 3154 | if (!font_info) |
3221576b GM |
3155 | { |
3156 | if (may_fail_p) | |
3157 | return 0; | |
39506348 | 3158 | abort (); |
3221576b | 3159 | } |
39506348 KH |
3160 | |
3161 | font.name = STRDUPA (font_info->full_name); | |
3162 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3163 | |
82641697 | 3164 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3165 | new frames would never take effect. If we couldn't get a font |
3166 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3167 | |
82641697 GM |
3168 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3169 | { | |
39506348 KH |
3170 | Lisp_Object val; |
3171 | if (have_xlfd_p) | |
3172 | { | |
3173 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3174 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3175 | + 2); | |
3176 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3177 | font.fields[XLFD_FAMILY]); | |
3178 | val = build_string (buffer); | |
3179 | } | |
3180 | else | |
3181 | val = build_string ("*"); | |
3182 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3183 | } |
3184 | ||
3185 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3186 | { | |
39506348 KH |
3187 | if (have_xlfd_p) |
3188 | pt = xlfd_point_size (f, &font); | |
3189 | else | |
3190 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3191 | xassert (pt > 0); |
3192 | LFACE_HEIGHT (lface) = make_number (pt); | |
3193 | } | |
3194 | ||
3195 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3196 | LFACE_SWIDTH (lface) |
3197 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3198 | |
a08332c0 GM |
3199 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3200 | LFACE_AVGWIDTH (lface) | |
3201 | = (have_xlfd_p | |
3202 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3203 | : Qunspecified); | |
3204 | ||
82641697 | 3205 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3206 | LFACE_WEIGHT (lface) |
3207 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3208 | |
3209 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3210 | LFACE_SLANT (lface) |
3211 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3212 | |
39506348 | 3213 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3214 | |
82641697 GM |
3215 | return 1; |
3216 | } | |
d12d0a9b | 3217 | |
c3cee013 | 3218 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3219 | |
3220 | ||
2c20458f MB |
3221 | /* Merges the face height FROM with the face height TO, and returns the |
3222 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3223 | returned instead. FROM and TO may be either absolute face heights or |
3224 | `relative' heights; the returned value is always an absolute height | |
3225 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3226 | will be protected from garbage-collection if this function makes a | |
3227 | call into lisp. */ | |
2c20458f MB |
3228 | |
3229 | Lisp_Object | |
3230 | merge_face_heights (from, to, invalid, gcpro) | |
3231 | Lisp_Object from, to, invalid, gcpro; | |
3232 | { | |
cdfaafa9 | 3233 | Lisp_Object result = invalid; |
2c20458f MB |
3234 | |
3235 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3236 | /* FROM is absolute, just use it as is. */ |
3237 | result = from; | |
3238 | else if (FLOATP (from)) | |
3239 | /* FROM is a scale, use it to adjust TO. */ | |
3240 | { | |
3241 | if (INTEGERP (to)) | |
3242 | /* relative X absolute => absolute */ | |
3243 | result = make_number (XFLOAT_DATA (from) * XINT (to)); | |
3244 | else if (FLOATP (to)) | |
3245 | /* relative X relative => relative */ | |
3246 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
2c20458f | 3247 | } |
2c20458f | 3248 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3249 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3250 | { |
3251 | /* Call function with current height as argument. | |
3252 | From is the new height. */ | |
cdfaafa9 | 3253 | Lisp_Object args[2]; |
2c20458f MB |
3254 | struct gcpro gcpro1; |
3255 | ||
3256 | GCPRO1 (gcpro); | |
3257 | ||
3258 | args[0] = from; | |
3259 | args[1] = to; | |
cdfaafa9 | 3260 | result = safe_call (2, args); |
2c20458f MB |
3261 | |
3262 | UNGCPRO; | |
3263 | ||
cdfaafa9 MB |
3264 | /* Ensure that if TO was absolute, so is the result. */ |
3265 | if (INTEGERP (to) && !INTEGERP (result)) | |
3266 | result = invalid; | |
2c20458f MB |
3267 | } |
3268 | ||
cdfaafa9 | 3269 | return result; |
2c20458f MB |
3270 | } |
3271 | ||
3272 | ||
3273 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3274 | store the resulting attributes in TO, which must be already be |
3275 | completely specified and contain only absolute attributes. Every | |
3276 | specified attribute of FROM overrides the corresponding attribute of | |
3277 | TO; relative attributes in FROM are merged with the absolute value in | |
3278 | TO and replace it. CYCLE_CHECK is used internally to detect loops in | |
3279 | face inheritance; it should be Qnil when called from other places. */ | |
82641697 GM |
3280 | |
3281 | static INLINE void | |
2c20458f MB |
3282 | merge_face_vectors (f, from, to, cycle_check) |
3283 | struct frame *f; | |
82641697 | 3284 | Lisp_Object *from, *to; |
2c20458f | 3285 | Lisp_Object cycle_check; |
82641697 GM |
3286 | { |
3287 | int i; | |
2c20458f MB |
3288 | |
3289 | /* If FROM inherits from some other faces, merge their attributes into | |
3290 | TO before merging FROM's direct attributes. Note that an :inherit | |
3291 | attribute of `unspecified' is the same as one of nil; we never | |
3292 | merge :inherit attributes, so nil is more correct, but lots of | |
3293 | other code uses `unspecified' as a generic value for face attributes. */ | |
3294 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3295 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
3296 | merge_face_inheritance (f, from[LFACE_INHERIT_INDEX], to, cycle_check); | |
3297 | ||
87188200 MB |
3298 | /* If TO specifies a :font attribute, and FROM specifies some |
3299 | font-related attribute, we need to clear TO's :font attribute | |
3300 | (because it will be inconsistent with whatever FROM specifies, and | |
3301 | FROM takes precedence). */ | |
3302 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3303 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3304 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3305 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3306 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3307 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3308 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3309 | to[LFACE_FONT_INDEX] = Qnil; |
3310 | ||
82641697 GM |
3311 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3312 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3313 | { |
3314 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
3315 | to[i] = merge_face_heights (from[i], to[i], to[i], cycle_check); | |
3316 | else | |
3317 | to[i] = from[i]; | |
3318 | } | |
2c20458f MB |
3319 | |
3320 | /* TO is always an absolute face, which should inherit from nothing. | |
3321 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3322 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3323 | } | |
3324 | ||
6288c62f | 3325 | |
2c20458f MB |
3326 | /* Checks the `cycle check' variable CHECK to see if it indicates that |
3327 | EL is part of a cycle; CHECK must be either Qnil or a value returned | |
3328 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of | |
3329 | elements after which a cycle might be suspected; after that many | |
3330 | elements, this macro begins consing in order to keep more precise | |
3331 | track of elements. | |
3332 | ||
3333 | Returns NIL if a cycle was detected, otherwise a new value for CHECK | |
3334 | that includes EL. | |
3335 | ||
3336 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so | |
3337 | the caller should make sure that's ok. */ | |
6288c62f | 3338 | |
28e6fb66 GM |
3339 | #define CYCLE_CHECK(check, el, suspicious) \ |
3340 | (NILP (check) \ | |
3341 | ? make_number (0) \ | |
3342 | : (INTEGERP (check) \ | |
3343 | ? (XFASTINT (check) < (suspicious) \ | |
3344 | ? make_number (XFASTINT (check) + 1) \ | |
3345 | : Fcons (el, Qnil)) \ | |
3346 | : (!NILP (Fmemq ((el), (check))) \ | |
3347 | ? Qnil \ | |
3348 | : Fcons ((el), (check))))) | |
2c20458f | 3349 | |
87188200 MB |
3350 | |
3351 | /* Merge face attributes from the face on frame F whose name is | |
3352 | INHERITS, into the vector of face attributes TO; INHERITS may also be | |
3353 | a list of face names, in which case they are applied in order. | |
3354 | CYCLE_CHECK is used to detect loops in face inheritance. | |
3355 | Returns true if any of the inherited attributes are `font-related'. */ | |
3356 | ||
2c20458f MB |
3357 | static void |
3358 | merge_face_inheritance (f, inherit, to, cycle_check) | |
3359 | struct frame *f; | |
3360 | Lisp_Object inherit; | |
3361 | Lisp_Object *to; | |
3362 | Lisp_Object cycle_check; | |
3363 | { | |
3364 | if (SYMBOLP (inherit) && !EQ (inherit, Qunspecified)) | |
3365 | /* Inherit from the named face INHERIT. */ | |
3366 | { | |
3367 | Lisp_Object lface; | |
3368 | ||
3369 | /* Make sure we're not in an inheritance loop. */ | |
3370 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3371 | if (NILP (cycle_check)) | |
3372 | /* Cycle detected, ignore any further inheritance. */ | |
3373 | return; | |
3374 | ||
3375 | lface = lface_from_face_name (f, inherit, 0); | |
3376 | if (!NILP (lface)) | |
3377 | merge_face_vectors (f, XVECTOR (lface)->contents, to, cycle_check); | |
3378 | } | |
3379 | else if (CONSP (inherit)) | |
3380 | /* Handle a list of inherited faces by calling ourselves recursively | |
3381 | on each element. Note that we only do so for symbol elements, so | |
3382 | it's not possible to infinitely recurse. */ | |
3383 | { | |
3384 | while (CONSP (inherit)) | |
3385 | { | |
3386 | if (SYMBOLP (XCAR (inherit))) | |
3387 | merge_face_inheritance (f, XCAR (inherit), to, cycle_check); | |
3388 | ||
3389 | /* Check for a circular inheritance list. */ | |
3390 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3391 | if (NILP (cycle_check)) | |
3392 | /* Cycle detected. */ | |
3393 | break; | |
3394 | ||
3395 | inherit = XCDR (inherit); | |
3396 | } | |
3397 | } | |
82641697 GM |
3398 | } |
3399 | ||
3400 | ||
3401 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
3402 | is a face property, determine the resulting face attributes on | |
3403 | frame F, and store them in TO. PROP may be a single face | |
3404 | specification or a list of such specifications. Each face | |
3405 | specification can be | |
3406 | ||
3407 | 1. A symbol or string naming a Lisp face. | |
3408 | ||
3409 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3410 | KEYWORD is a face attribute name, and value is an appropriate value | |
3411 | for that attribute. | |
3412 | ||
3413 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3414 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3415 | for compatibility with 20.2. | |
3416 | ||
3417 | Face specifications earlier in lists take precedence over later | |
3418 | specifications. */ | |
178c5d9c | 3419 | |
82641697 GM |
3420 | static void |
3421 | merge_face_vector_with_property (f, to, prop) | |
3422 | struct frame *f; | |
3423 | Lisp_Object *to; | |
3424 | Lisp_Object prop; | |
3425 | { | |
3426 | if (CONSP (prop)) | |
3427 | { | |
3428 | Lisp_Object first = XCAR (prop); | |
178c5d9c | 3429 | |
82641697 GM |
3430 | if (EQ (first, Qforeground_color) |
3431 | || EQ (first, Qbackground_color)) | |
3432 | { | |
3433 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3434 | . COLOR). COLOR must be a string. */ | |
3435 | Lisp_Object color_name = XCDR (prop); | |
3436 | Lisp_Object color = first; | |
3437 | ||
3438 | if (STRINGP (color_name)) | |
3439 | { | |
3440 | if (EQ (color, Qforeground_color)) | |
3441 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3442 | else | |
3443 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3444 | } | |
3445 | else | |
1b8f7fbc | 3446 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
3447 | } |
3448 | else if (SYMBOLP (first) | |
3449 | && *XSYMBOL (first)->name->data == ':') | |
3450 | { | |
3451 | /* Assume this is the property list form. */ | |
3452 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
3453 | { | |
3454 | Lisp_Object keyword = XCAR (prop); | |
3455 | Lisp_Object value = XCAR (XCDR (prop)); | |
3456 | ||
3457 | if (EQ (keyword, QCfamily)) | |
3458 | { | |
3459 | if (STRINGP (value)) | |
3460 | to[LFACE_FAMILY_INDEX] = value; | |
3461 | else | |
1a948b17 | 3462 | add_to_log ("Invalid face font family", value, Qnil); |
82641697 GM |
3463 | } |
3464 | else if (EQ (keyword, QCheight)) | |
3465 | { | |
2c20458f MB |
3466 | Lisp_Object new_height = |
3467 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], | |
3468 | Qnil, Qnil); | |
3469 | ||
3470 | if (NILP (new_height)) | |
1a948b17 | 3471 | add_to_log ("Invalid face font height", value, Qnil); |
2c20458f MB |
3472 | else |
3473 | to[LFACE_HEIGHT_INDEX] = new_height; | |
82641697 GM |
3474 | } |
3475 | else if (EQ (keyword, QCweight)) | |
3476 | { | |
3477 | if (SYMBOLP (value) | |
3478 | && face_numeric_weight (value) >= 0) | |
3479 | to[LFACE_WEIGHT_INDEX] = value; | |
3480 | else | |
1a948b17 | 3481 | add_to_log ("Invalid face weight", value, Qnil); |
82641697 GM |
3482 | } |
3483 | else if (EQ (keyword, QCslant)) | |
3484 | { | |
3485 | if (SYMBOLP (value) | |
3486 | && face_numeric_slant (value) >= 0) | |
3487 | to[LFACE_SLANT_INDEX] = value; | |
3488 | else | |
1a948b17 | 3489 | add_to_log ("Invalid face slant", value, Qnil); |
82641697 GM |
3490 | } |
3491 | else if (EQ (keyword, QCunderline)) | |
3492 | { | |
3493 | if (EQ (value, Qt) | |
3494 | || NILP (value) | |
3495 | || STRINGP (value)) | |
3496 | to[LFACE_UNDERLINE_INDEX] = value; | |
3497 | else | |
1a948b17 | 3498 | add_to_log ("Invalid face underline", value, Qnil); |
82641697 GM |
3499 | } |
3500 | else if (EQ (keyword, QCoverline)) | |
3501 | { | |
3502 | if (EQ (value, Qt) | |
3503 | || NILP (value) | |
3504 | || STRINGP (value)) | |
3505 | to[LFACE_OVERLINE_INDEX] = value; | |
3506 | else | |
1a948b17 | 3507 | add_to_log ("Invalid face overline", value, Qnil); |
82641697 GM |
3508 | } |
3509 | else if (EQ (keyword, QCstrike_through)) | |
3510 | { | |
3511 | if (EQ (value, Qt) | |
3512 | || NILP (value) | |
3513 | || STRINGP (value)) | |
3514 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3515 | else | |
1a948b17 | 3516 | add_to_log ("Invalid face strike-through", value, Qnil); |
82641697 GM |
3517 | } |
3518 | else if (EQ (keyword, QCbox)) | |
3519 | { | |
3520 | if (EQ (value, Qt)) | |
3521 | value = make_number (1); | |
3522 | if (INTEGERP (value) | |
3523 | || STRINGP (value) | |
3524 | || CONSP (value) | |
3525 | || NILP (value)) | |
3526 | to[LFACE_BOX_INDEX] = value; | |
3527 | else | |
1a948b17 | 3528 | add_to_log ("Invalid face box", value, Qnil); |
82641697 GM |
3529 | } |
3530 | else if (EQ (keyword, QCinverse_video) | |
3531 | || EQ (keyword, QCreverse_video)) | |
3532 | { | |
3533 | if (EQ (value, Qt) || NILP (value)) | |
3534 | to[LFACE_INVERSE_INDEX] = value; | |
3535 | else | |
1a948b17 | 3536 | add_to_log ("Invalid face inverse-video", value, Qnil); |
82641697 GM |
3537 | } |
3538 | else if (EQ (keyword, QCforeground)) | |
3539 | { | |
3540 | if (STRINGP (value)) | |
3541 | to[LFACE_FOREGROUND_INDEX] = value; | |
3542 | else | |
1a948b17 | 3543 | add_to_log ("Invalid face foreground", value, Qnil); |
82641697 GM |
3544 | } |
3545 | else if (EQ (keyword, QCbackground)) | |
3546 | { | |
3547 | if (STRINGP (value)) | |
3548 | to[LFACE_BACKGROUND_INDEX] = value; | |
3549 | else | |
1a948b17 | 3550 | add_to_log ("Invalid face background", value, Qnil); |
82641697 GM |
3551 | } |
3552 | else if (EQ (keyword, QCstipple)) | |
3553 | { | |
3554 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3555 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3556 | if (!NILP (pixmap_p)) |
3557 | to[LFACE_STIPPLE_INDEX] = value; | |
3558 | else | |
1a948b17 | 3559 | add_to_log ("Invalid face stipple", value, Qnil); |
82641697 GM |
3560 | #endif |
3561 | } | |
3562 | else if (EQ (keyword, QCwidth)) | |
3563 | { | |
3564 | if (SYMBOLP (value) | |
3565 | && face_numeric_swidth (value) >= 0) | |
3566 | to[LFACE_SWIDTH_INDEX] = value; | |
3567 | else | |
1a948b17 | 3568 | add_to_log ("Invalid face width", value, Qnil); |
82641697 | 3569 | } |
2c20458f MB |
3570 | else if (EQ (keyword, QCinherit)) |
3571 | { | |
3572 | if (SYMBOLP (value)) | |
3573 | to[LFACE_INHERIT_INDEX] = value; | |
3574 | else | |
3575 | { | |
3576 | Lisp_Object tail; | |
3577 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3578 | if (!SYMBOLP (XCAR (tail))) | |
3579 | break; | |
3580 | if (NILP (tail)) | |
3581 | to[LFACE_INHERIT_INDEX] = value; | |
3582 | else | |
3583 | add_to_log ("Invalid face inherit", value, Qnil); | |
3584 | } | |
3585 | } | |
82641697 | 3586 | else |
1b8f7fbc | 3587 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3588 | keyword, Qnil); |
82641697 GM |
3589 | |
3590 | prop = XCDR (XCDR (prop)); | |
3591 | } | |
3592 | } | |
3593 | else | |
3594 | { | |
3595 | /* This is a list of face specs. Specifications at the | |
3596 | beginning of the list take precedence over later | |
3597 | specifications, so we have to merge starting with the | |
3598 | last specification. */ | |
3599 | Lisp_Object next = XCDR (prop); | |
3600 | if (!NILP (next)) | |
3601 | merge_face_vector_with_property (f, to, next); | |
3602 | merge_face_vector_with_property (f, to, first); | |
3603 | } | |
3604 | } | |
3605 | else | |
3606 | { | |
3607 | /* PROP ought to be a face name. */ | |
3608 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3609 | if (NILP (lface)) | |
1b8f7fbc | 3610 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 | 3611 | else |
2c20458f | 3612 | merge_face_vectors (f, XVECTOR (lface)->contents, to, Qnil); |
82641697 GM |
3613 | } |
3614 | } | |
3615 | ||
3616 | ||
3617 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3618 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 3619 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
3620 | If FACE was not known as a face before, create a new one. |
3621 | If optional argument FRAME is specified, make a frame-local face | |
3622 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
3623 | Value is a vector of face attributes. */) |
3624 | (face, frame) | |
82641697 GM |
3625 | Lisp_Object face, frame; |
3626 | { | |
3627 | Lisp_Object global_lface, lface; | |
3628 | struct frame *f; | |
3629 | int i; | |
3630 | ||
b7826503 | 3631 | CHECK_SYMBOL (face); |
82641697 | 3632 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 3633 | |
82641697 GM |
3634 | if (!NILP (frame)) |
3635 | { | |
b7826503 | 3636 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3637 | f = XFRAME (frame); |
3638 | lface = lface_from_face_name (f, face, 0); | |
3639 | } | |
3640 | else | |
3641 | f = NULL, lface = Qnil; | |
3642 | ||
3643 | /* Add a global definition if there is none. */ | |
3644 | if (NILP (global_lface)) | |
3645 | { | |
3646 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3647 | Qunspecified); | |
a08332c0 | 3648 | AREF (global_lface, 0) = Qface; |
178c5d9c | 3649 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3650 | Vface_new_frame_defaults); |
178c5d9c | 3651 | |
82641697 GM |
3652 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3653 | face id to Lisp face is given by the vector lface_id_to_name. | |
3654 | The mapping from Lisp face to Lisp face id is given by the | |
3655 | property `face' of the Lisp face name. */ | |
3656 | if (next_lface_id == lface_id_to_name_size) | |
3657 | { | |
3658 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3659 | int sz = new_size * sizeof *lface_id_to_name; | |
3660 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3661 | lface_id_to_name_size = new_size; | |
3662 | } | |
178c5d9c | 3663 | |
82641697 GM |
3664 | lface_id_to_name[next_lface_id] = face; |
3665 | Fput (face, Qface, make_number (next_lface_id)); | |
3666 | ++next_lface_id; | |
3667 | } | |
3668 | else if (f == NULL) | |
3669 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3670 | AREF (global_lface, i) = Qunspecified; |
178c5d9c | 3671 | |
82641697 GM |
3672 | /* Add a frame-local definition. */ |
3673 | if (f) | |
3674 | { | |
3675 | if (NILP (lface)) | |
3676 | { | |
3677 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3678 | Qunspecified); | |
a08332c0 | 3679 | AREF (lface, 0) = Qface; |
82641697 GM |
3680 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
3681 | } | |
3682 | else | |
3683 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3684 | AREF (lface, i) = Qunspecified; |
82641697 GM |
3685 | } |
3686 | else | |
3687 | lface = global_lface; | |
3688 | ||
3689 | xassert (LFACEP (lface)); | |
3690 | check_lface (lface); | |
3691 | return lface; | |
3692 | } | |
3693 | ||
3694 | ||
3695 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3696 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 3697 | doc: /* Return non-nil if FACE names a face. |
228299fa GM |
3698 | If optional second parameter FRAME is non-nil, check for the |
3699 | existence of a frame-local face with name FACE on that frame. | |
7ee72033 MB |
3700 | Otherwise check for the existence of a global face. */) |
3701 | (face, frame) | |
82641697 GM |
3702 | Lisp_Object face, frame; |
3703 | { | |
3704 | Lisp_Object lface; | |
178c5d9c | 3705 | |
82641697 GM |
3706 | if (!NILP (frame)) |
3707 | { | |
b7826503 | 3708 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3709 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
3710 | } | |
3711 | else | |
3712 | lface = lface_from_face_name (NULL, face, 0); | |
3713 | ||
3714 | return lface; | |
3715 | } | |
3716 | ||
3717 | ||
3718 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3719 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 3720 | doc: /* Copy face FROM to TO. |
228299fa GM |
3721 | If FRAME it t, copy the global face definition of FROM to the |
3722 | global face definition of TO. Otherwise, copy the frame-local | |
3723 | definition of FROM on FRAME to the frame-local definition of TO | |
3724 | on NEW-FRAME, or FRAME if NEW-FRAME is nil. | |
3725 | ||
7ee72033 MB |
3726 | Value is TO. */) |
3727 | (from, to, frame, new_frame) | |
82641697 GM |
3728 | Lisp_Object from, to, frame, new_frame; |
3729 | { | |
3730 | Lisp_Object lface, copy; | |
178c5d9c | 3731 | |
b7826503 PJ |
3732 | CHECK_SYMBOL (from); |
3733 | CHECK_SYMBOL (to); | |
82641697 GM |
3734 | if (NILP (new_frame)) |
3735 | new_frame = frame; | |
3736 | ||
3737 | if (EQ (frame, Qt)) | |
3738 | { | |
3739 | /* Copy global definition of FROM. We don't make copies of | |
3740 | strings etc. because 20.2 didn't do it either. */ | |
3741 | lface = lface_from_face_name (NULL, from, 1); | |
3742 | copy = Finternal_make_lisp_face (to, Qnil); | |
3743 | } | |
3744 | else | |
3745 | { | |
3746 | /* Copy frame-local definition of FROM. */ | |
b7826503 PJ |
3747 | CHECK_LIVE_FRAME (frame); |
3748 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
3749 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
3750 | copy = Finternal_make_lisp_face (to, new_frame); | |
3751 | } | |
178c5d9c | 3752 | |
82641697 GM |
3753 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3754 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3755 | |
82641697 GM |
3756 | return to; |
3757 | } | |
3758 | ||
3759 | ||
3760 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3761 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 3762 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
3763 | FRAME being a frame means change the face on that frame. |
3764 | FRAME nil means change the face of the selected frame. | |
3765 | FRAME t means change the default for new frames. | |
3766 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
3767 | for new frames. */) |
3768 | (face, attr, value, frame) | |
82641697 GM |
3769 | Lisp_Object face, attr, value, frame; |
3770 | { | |
3771 | Lisp_Object lface; | |
3772 | Lisp_Object old_value = Qnil; | |
39506348 KH |
3773 | /* Set 1 if ATTR is QCfont. */ |
3774 | int font_attr_p = 0; | |
3775 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 3776 | int font_related_attr_p = 0; |
178c5d9c | 3777 | |
b7826503 PJ |
3778 | CHECK_SYMBOL (face); |
3779 | CHECK_SYMBOL (attr); | |
82641697 | 3780 | |
c7ae3284 GM |
3781 | face = resolve_face_name (face); |
3782 | ||
628436fb GM |
3783 | /* If FRAME is 0, change face on all frames, and change the |
3784 | default for new frames. */ | |
3785 | if (INTEGERP (frame) && XINT (frame) == 0) | |
3786 | { | |
3787 | Lisp_Object tail; | |
d12d0a9b | 3788 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
3789 | FOR_EACH_FRAME (tail, frame) |
3790 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 3791 | return face; |
628436fb GM |
3792 | } |
3793 | ||
82641697 GM |
3794 | /* Set lface to the Lisp attribute vector of FACE. */ |
3795 | if (EQ (frame, Qt)) | |
3796 | lface = lface_from_face_name (NULL, face, 1); | |
3797 | else | |
3798 | { | |
3799 | if (NILP (frame)) | |
c0617987 | 3800 | frame = selected_frame; |
178c5d9c | 3801 | |
b7826503 | 3802 | CHECK_LIVE_FRAME (frame); |
82641697 | 3803 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 3804 | |
82641697 GM |
3805 | /* If a frame-local face doesn't exist yet, create one. */ |
3806 | if (NILP (lface)) | |
3807 | lface = Finternal_make_lisp_face (face, frame); | |
3808 | } | |
3809 | ||
3810 | if (EQ (attr, QCfamily)) | |
3811 | { | |
3812 | if (!UNSPECIFIEDP (value)) | |
3813 | { | |
b7826503 | 3814 | CHECK_STRING (value); |
82641697 GM |
3815 | if (XSTRING (value)->size == 0) |
3816 | signal_error ("Invalid face family", value); | |
3817 | } | |
3818 | old_value = LFACE_FAMILY (lface); | |
3819 | LFACE_FAMILY (lface) = value; | |
3820 | font_related_attr_p = 1; | |
3821 | } | |
3822 | else if (EQ (attr, QCheight)) | |
3823 | { | |
3824 | if (!UNSPECIFIEDP (value)) | |
3825 | { | |
d8055bfc | 3826 | Lisp_Object test; |
2c20458f | 3827 | |
d8055bfc GM |
3828 | test = (EQ (face, Qdefault) |
3829 | ? value | |
3830 | /* The default face must have an absolute size, | |
3831 | otherwise, we do a test merge with a random | |
3832 | height to see if VALUE's ok. */ | |
3833 | : merge_face_heights (value, make_number (10), Qnil, Qnil)); | |
3834 | ||
3835 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
3836 | signal_error ("Invalid face height", value); |
3837 | } | |
2c20458f | 3838 | |
82641697 GM |
3839 | old_value = LFACE_HEIGHT (lface); |
3840 | LFACE_HEIGHT (lface) = value; | |
3841 | font_related_attr_p = 1; | |
3842 | } | |
3843 | else if (EQ (attr, QCweight)) | |
3844 | { | |
3845 | if (!UNSPECIFIEDP (value)) | |
3846 | { | |
b7826503 | 3847 | CHECK_SYMBOL (value); |
82641697 GM |
3848 | if (face_numeric_weight (value) < 0) |
3849 | signal_error ("Invalid face weight", value); | |
3850 | } | |
3851 | old_value = LFACE_WEIGHT (lface); | |
3852 | LFACE_WEIGHT (lface) = value; | |
3853 | font_related_attr_p = 1; | |
3854 | } | |
3855 | else if (EQ (attr, QCslant)) | |
3856 | { | |
3857 | if (!UNSPECIFIEDP (value)) | |
3858 | { | |
b7826503 | 3859 | CHECK_SYMBOL (value); |
82641697 GM |
3860 | if (face_numeric_slant (value) < 0) |
3861 | signal_error ("Invalid face slant", value); | |
3862 | } | |
3863 | old_value = LFACE_SLANT (lface); | |
3864 | LFACE_SLANT (lface) = value; | |
3865 | font_related_attr_p = 1; | |
3866 | } | |
3867 | else if (EQ (attr, QCunderline)) | |
3868 | { | |
3869 | if (!UNSPECIFIEDP (value)) | |
3870 | if ((SYMBOLP (value) | |
3871 | && !EQ (value, Qt) | |
3872 | && !EQ (value, Qnil)) | |
3873 | /* Underline color. */ | |
3874 | || (STRINGP (value) | |
3875 | && XSTRING (value)->size == 0)) | |
3876 | signal_error ("Invalid face underline", value); | |
178c5d9c | 3877 | |
82641697 GM |
3878 | old_value = LFACE_UNDERLINE (lface); |
3879 | LFACE_UNDERLINE (lface) = value; | |
3880 | } | |
3881 | else if (EQ (attr, QCoverline)) | |
3882 | { | |
3883 | if (!UNSPECIFIEDP (value)) | |
3884 | if ((SYMBOLP (value) | |
3885 | && !EQ (value, Qt) | |
3886 | && !EQ (value, Qnil)) | |
3887 | /* Overline color. */ | |
3888 | || (STRINGP (value) | |
3889 | && XSTRING (value)->size == 0)) | |
3890 | signal_error ("Invalid face overline", value); | |
178c5d9c | 3891 | |
82641697 GM |
3892 | old_value = LFACE_OVERLINE (lface); |
3893 | LFACE_OVERLINE (lface) = value; | |
3894 | } | |
3895 | else if (EQ (attr, QCstrike_through)) | |
3896 | { | |
3897 | if (!UNSPECIFIEDP (value)) | |
3898 | if ((SYMBOLP (value) | |
3899 | && !EQ (value, Qt) | |
3900 | && !EQ (value, Qnil)) | |
3901 | /* Strike-through color. */ | |
3902 | || (STRINGP (value) | |
3903 | && XSTRING (value)->size == 0)) | |
3904 | signal_error ("Invalid face strike-through", value); | |
178c5d9c | 3905 | |
82641697 GM |
3906 | old_value = LFACE_STRIKE_THROUGH (lface); |
3907 | LFACE_STRIKE_THROUGH (lface) = value; | |
3908 | } | |
3909 | else if (EQ (attr, QCbox)) | |
3910 | { | |
3911 | int valid_p; | |
178c5d9c | 3912 | |
82641697 GM |
3913 | /* Allow t meaning a simple box of width 1 in foreground color |
3914 | of the face. */ | |
3915 | if (EQ (value, Qt)) | |
3916 | value = make_number (1); | |
3917 | ||
3918 | if (UNSPECIFIEDP (value)) | |
3919 | valid_p = 1; | |
3920 | else if (NILP (value)) | |
3921 | valid_p = 1; | |
3922 | else if (INTEGERP (value)) | |
89624b8b | 3923 | valid_p = XINT (value) != 0; |
82641697 GM |
3924 | else if (STRINGP (value)) |
3925 | valid_p = XSTRING (value)->size > 0; | |
3926 | else if (CONSP (value)) | |
3927 | { | |
3928 | Lisp_Object tem; | |
178c5d9c | 3929 | |
82641697 GM |
3930 | tem = value; |
3931 | while (CONSP (tem)) | |
3932 | { | |
3933 | Lisp_Object k, v; | |
3934 | ||
3935 | k = XCAR (tem); | |
3936 | tem = XCDR (tem); | |
3937 | if (!CONSP (tem)) | |
3938 | break; | |
3939 | v = XCAR (tem); | |
3940 | tem = XCDR (tem); | |
178c5d9c | 3941 | |
82641697 GM |
3942 | if (EQ (k, QCline_width)) |
3943 | { | |
89624b8b | 3944 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
3945 | break; |
3946 | } | |
3947 | else if (EQ (k, QCcolor)) | |
3948 | { | |
3949 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3950 | break; | |
3951 | } | |
3952 | else if (EQ (k, QCstyle)) | |
3953 | { | |
3954 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3955 | break; | |
3956 | } | |
3957 | else | |
3958 | break; | |
3959 | } | |
3960 | ||
3961 | valid_p = NILP (tem); | |
3962 | } | |
3963 | else | |
3964 | valid_p = 0; | |
3965 | ||
3966 | if (!valid_p) | |
3967 | signal_error ("Invalid face box", value); | |
178c5d9c | 3968 | |
82641697 GM |
3969 | old_value = LFACE_BOX (lface); |
3970 | LFACE_BOX (lface) = value; | |
3971 | } | |
3972 | else if (EQ (attr, QCinverse_video) | |
3973 | || EQ (attr, QCreverse_video)) | |
3974 | { | |
3975 | if (!UNSPECIFIEDP (value)) | |
3976 | { | |
b7826503 | 3977 | CHECK_SYMBOL (value); |
82641697 GM |
3978 | if (!EQ (value, Qt) && !NILP (value)) |
3979 | signal_error ("Invalid inverse-video face attribute value", value); | |
3980 | } | |
3981 | old_value = LFACE_INVERSE (lface); | |
3982 | LFACE_INVERSE (lface) = value; | |
3983 | } | |
3984 | else if (EQ (attr, QCforeground)) | |
3985 | { | |
ef917393 | 3986 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3987 | { |
3988 | /* Don't check for valid color names here because it depends | |
3989 | on the frame (display) whether the color will be valid | |
3990 | when the face is realized. */ | |
b7826503 | 3991 | CHECK_STRING (value); |
82641697 GM |
3992 | if (XSTRING (value)->size == 0) |
3993 | signal_error ("Empty foreground color value", value); | |
3994 | } | |
3995 | old_value = LFACE_FOREGROUND (lface); | |
3996 | LFACE_FOREGROUND (lface) = value; | |
3997 | } | |
3998 | else if (EQ (attr, QCbackground)) | |
3999 | { | |
ef917393 | 4000 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4001 | { |
4002 | /* Don't check for valid color names here because it depends | |
4003 | on the frame (display) whether the color will be valid | |
4004 | when the face is realized. */ | |
b7826503 | 4005 | CHECK_STRING (value); |
82641697 GM |
4006 | if (XSTRING (value)->size == 0) |
4007 | signal_error ("Empty background color value", value); | |
4008 | } | |
4009 | old_value = LFACE_BACKGROUND (lface); | |
4010 | LFACE_BACKGROUND (lface) = value; | |
4011 | } | |
4012 | else if (EQ (attr, QCstipple)) | |
4013 | { | |
4014 | #ifdef HAVE_X_WINDOWS | |
4015 | if (!UNSPECIFIEDP (value) | |
4016 | && !NILP (value) | |
fef04523 | 4017 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4018 | signal_error ("Invalid stipple attribute", value); |
4019 | old_value = LFACE_STIPPLE (lface); | |
4020 | LFACE_STIPPLE (lface) = value; | |
4021 | #endif /* HAVE_X_WINDOWS */ | |
4022 | } | |
4023 | else if (EQ (attr, QCwidth)) | |
4024 | { | |
4025 | if (!UNSPECIFIEDP (value)) | |
4026 | { | |
b7826503 | 4027 | CHECK_SYMBOL (value); |
82641697 GM |
4028 | if (face_numeric_swidth (value) < 0) |
4029 | signal_error ("Invalid face width", value); | |
4030 | } | |
4031 | old_value = LFACE_SWIDTH (lface); | |
4032 | LFACE_SWIDTH (lface) = value; | |
4033 | font_related_attr_p = 1; | |
4034 | } | |
4035 | else if (EQ (attr, QCfont)) | |
4036 | { | |
c3cee013 | 4037 | #ifdef HAVE_WINDOW_SYSTEM |
496e1a5b | 4038 | if (FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4039 | { |
4040 | /* Set font-related attributes of the Lisp face from an XLFD | |
4041 | font name. */ | |
4042 | struct frame *f; | |
4043 | Lisp_Object tmp; | |
82641697 | 4044 | |
b7826503 | 4045 | CHECK_STRING (value); |
96fbd2c6 EZ |
4046 | if (EQ (frame, Qt)) |
4047 | f = SELECTED_FRAME (); | |
4048 | else | |
4049 | f = check_x_frame (frame); | |
178c5d9c | 4050 | |
96fbd2c6 EZ |
4051 | /* VALUE may be a fontset name or an alias of fontset. In |
4052 | such a case, use the base fontset name. */ | |
4053 | tmp = Fquery_fontset (value, Qnil); | |
4054 | if (!NILP (tmp)) | |
4055 | value = tmp; | |
39506348 | 4056 | |
96fbd2c6 EZ |
4057 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) |
4058 | signal_error ("Invalid font or fontset name", value); | |
39506348 | 4059 | |
96fbd2c6 EZ |
4060 | font_attr_p = 1; |
4061 | } | |
c3cee013 | 4062 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4063 | } |
2c20458f MB |
4064 | else if (EQ (attr, QCinherit)) |
4065 | { | |
4066 | Lisp_Object tail; | |
4067 | if (SYMBOLP (value)) | |
4068 | tail = Qnil; | |
4069 | else | |
4070 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4071 | if (!SYMBOLP (XCAR (tail))) | |
4072 | break; | |
4073 | if (NILP (tail)) | |
4074 | LFACE_INHERIT (lface) = value; | |
4075 | else | |
6288c62f | 4076 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4077 | } |
82641697 GM |
4078 | else if (EQ (attr, QCbold)) |
4079 | { | |
4080 | old_value = LFACE_WEIGHT (lface); | |
4081 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4082 | font_related_attr_p = 1; | |
4083 | } | |
4084 | else if (EQ (attr, QCitalic)) | |
4085 | { | |
4086 | old_value = LFACE_SLANT (lface); | |
4087 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4088 | font_related_attr_p = 1; | |
4089 | } | |
4090 | else | |
4091 | signal_error ("Invalid face attribute name", attr); | |
4092 | ||
39506348 KH |
4093 | if (font_related_attr_p |
4094 | && !UNSPECIFIEDP (value)) | |
4095 | /* If a font-related attribute other than QCfont is specified, the | |
4096 | original `font' attribute nor that of default face is useless | |
4097 | to determine a new font. Thus, we set it to nil so that font | |
4098 | selection mechanism doesn't use it. */ | |
4099 | LFACE_FONT (lface) = Qnil; | |
4100 | ||
82641697 GM |
4101 | /* Changing a named face means that all realized faces depending on |
4102 | that face are invalid. Since we cannot tell which realized faces | |
4103 | depend on the face, make sure they are all removed. This is done | |
4104 | by incrementing face_change_count. The next call to | |
4105 | init_iterator will then free realized faces. */ | |
4106 | if (!EQ (frame, Qt) | |
4107 | && (EQ (attr, QCfont) | |
4108 | || NILP (Fequal (old_value, value)))) | |
4109 | { | |
4110 | ++face_change_count; | |
4111 | ++windows_or_buffers_changed; | |
4112 | } | |
4113 | ||
0eb2ecde | 4114 | if (!UNSPECIFIEDP (value) |
82641697 | 4115 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4116 | { |
4117 | Lisp_Object param; | |
4118 | ||
4119 | param = Qnil; | |
178c5d9c | 4120 | |
8bd201d6 GM |
4121 | if (EQ (face, Qdefault)) |
4122 | { | |
b9c769f8 | 4123 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4124 | /* Changed font-related attributes of the `default' face are |
4125 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4126 | if (FRAMEP (frame) |
4127 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4128 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4129 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4130 | else |
4131 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4132 | ||
4133 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4134 | param = Qforeground_color; |
4135 | else if (EQ (attr, QCbackground)) | |
4136 | param = Qbackground_color; | |
4137 | } | |
b9c769f8 | 4138 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4139 | #ifndef WINDOWSNT |
8bd201d6 GM |
4140 | else if (EQ (face, Qscroll_bar)) |
4141 | { | |
4142 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4143 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4144 | if (EQ (attr, QCforeground)) | |
4145 | param = Qscroll_bar_foreground; | |
4146 | else if (EQ (attr, QCbackground)) | |
4147 | param = Qscroll_bar_background; | |
4148 | } | |
d12d0a9b | 4149 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4150 | else if (EQ (face, Qborder)) |
4151 | { | |
4152 | /* Changing background color of `border' sets frame parameter | |
4153 | `border-color'. */ | |
4154 | if (EQ (attr, QCbackground)) | |
4155 | param = Qborder_color; | |
4156 | } | |
4157 | else if (EQ (face, Qcursor)) | |
4158 | { | |
4159 | /* Changing background color of `cursor' sets frame parameter | |
4160 | `cursor-color'. */ | |
4161 | if (EQ (attr, QCbackground)) | |
4162 | param = Qcursor_color; | |
4163 | } | |
4164 | else if (EQ (face, Qmouse)) | |
4165 | { | |
4166 | /* Changing background color of `mouse' sets frame parameter | |
4167 | `mouse-color'. */ | |
4168 | if (EQ (attr, QCbackground)) | |
4169 | param = Qmouse_color; | |
4170 | } | |
b9c769f8 | 4171 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4172 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4173 | { |
4174 | /* Indicate that we have to update the menu bar when | |
4175 | realizing faces on FRAME. FRAME t change the | |
4176 | default for new frames. We do this by setting | |
4177 | setting the flag in new face caches */ | |
4178 | if (FRAMEP (frame)) | |
4179 | { | |
4180 | struct frame *f = XFRAME (frame); | |
4181 | if (FRAME_FACE_CACHE (f) == NULL) | |
4182 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4183 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4184 | } | |
4185 | else | |
4186 | menu_face_changed_default = 1; | |
4187 | } | |
8bd201d6 | 4188 | |
39506348 | 4189 | if (!NILP (param)) |
ab8469eb PJ |
4190 | { |
4191 | if (EQ (frame, Qt)) | |
4192 | /* Update `default-frame-alist', which is used for new frames. */ | |
4193 | { | |
4194 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4195 | } | |
4196 | else | |
4197 | /* Update the current frame's parameters. */ | |
4198 | { | |
4199 | Lisp_Object cons; | |
4200 | cons = XCAR (Vparam_value_alist); | |
4201 | XSETCAR (cons, param); | |
4202 | XSETCDR (cons, value); | |
4203 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4204 | } | |
4205 | } | |
8bd201d6 | 4206 | } |
82641697 | 4207 | |
82641697 GM |
4208 | return face; |
4209 | } | |
4210 | ||
4211 | ||
c3cee013 | 4212 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4213 | |
39506348 KH |
4214 | /* Set the `font' frame parameter of FRAME determined from `default' |
4215 | face attributes LFACE. If a face or fontset name is explicitely | |
4216 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4217 | from the other font-related atrributes of LFACE. In that case, if | |
4218 | there's no matching font, signals an error. */ | |
82641697 GM |
4219 | |
4220 | static void | |
4221 | set_font_frame_param (frame, lface) | |
4222 | Lisp_Object frame, lface; | |
4223 | { | |
4224 | struct frame *f = XFRAME (frame); | |
82641697 | 4225 | |
482cca61 | 4226 | if (FRAME_WINDOW_P (f)) |
82641697 | 4227 | { |
482cca61 GM |
4228 | Lisp_Object font_name; |
4229 | char *font; | |
4230 | ||
4231 | if (STRINGP (LFACE_FONT (lface))) | |
4232 | font_name = LFACE_FONT (lface); | |
4233 | else | |
4234 | { | |
4235 | /* Choose a font name that reflects LFACE's attributes and has | |
4236 | the registry and encoding pattern specified in the default | |
4237 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
4238 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0); | |
4239 | if (!font) | |
4240 | error ("No font matches the specified attribute"); | |
4241 | font_name = build_string (font); | |
4242 | xfree (font); | |
4243 | } | |
5226a931 | 4244 | |
482cca61 GM |
4245 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4246 | } | |
82641697 GM |
4247 | } |
4248 | ||
4249 | ||
8bd201d6 GM |
4250 | /* Update the corresponding face when frame parameter PARAM on frame F |
4251 | has been assigned the value NEW_VALUE. */ | |
4252 | ||
4253 | void | |
4254 | update_face_from_frame_parameter (f, param, new_value) | |
4255 | struct frame *f; | |
4256 | Lisp_Object param, new_value; | |
4257 | { | |
4258 | Lisp_Object lface; | |
4259 | ||
4260 | /* If there are no faces yet, give up. This is the case when called | |
4261 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4262 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4263 | if (NILP (f->face_alist)) |
4264 | return; | |
178c5d9c | 4265 | |
8bd201d6 GM |
4266 | if (EQ (param, Qforeground_color)) |
4267 | { | |
4268 | lface = lface_from_face_name (f, Qdefault, 1); | |
4269 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
4270 | ? new_value : Qunspecified); | |
4271 | realize_basic_faces (f); | |
4272 | } | |
4273 | else if (EQ (param, Qbackground_color)) | |
4274 | { | |
92610620 GM |
4275 | Lisp_Object frame; |
4276 | ||
4277 | /* Changing the background color might change the background | |
4278 | mode, so that we have to load new defface specs. Call | |
4279 | frame-update-face-colors to do that. */ | |
4280 | XSETFRAME (frame, f); | |
4281 | call1 (Qframe_update_face_colors, frame); | |
178c5d9c | 4282 | |
8bd201d6 GM |
4283 | lface = lface_from_face_name (f, Qdefault, 1); |
4284 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4285 | ? new_value : Qunspecified); | |
4286 | realize_basic_faces (f); | |
4287 | } | |
4288 | if (EQ (param, Qborder_color)) | |
4289 | { | |
4290 | lface = lface_from_face_name (f, Qborder, 1); | |
4291 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4292 | ? new_value : Qunspecified); | |
4293 | } | |
4294 | else if (EQ (param, Qcursor_color)) | |
4295 | { | |
4296 | lface = lface_from_face_name (f, Qcursor, 1); | |
4297 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4298 | ? new_value : Qunspecified); | |
4299 | } | |
4300 | else if (EQ (param, Qmouse_color)) | |
4301 | { | |
4302 | lface = lface_from_face_name (f, Qmouse, 1); | |
4303 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4304 | ? new_value : Qunspecified); | |
4305 | } | |
4306 | } | |
4307 | ||
4308 | ||
82641697 GM |
4309 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4310 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4311 | doesn't take a frame argument. */ | |
4312 | ||
4313 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4314 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4315 | (resource, class, frame) | |
82641697 GM |
4316 | Lisp_Object resource, class, frame; |
4317 | { | |
c3cee013 JR |
4318 | Lisp_Object value = Qnil; |
4319 | #ifndef WINDOWSNT | |
1a578e9b | 4320 | #ifndef macintosh |
b7826503 PJ |
4321 | CHECK_STRING (resource); |
4322 | CHECK_STRING (class); | |
4323 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4324 | BLOCK_INPUT; |
4325 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4326 | resource, class, Qnil, Qnil); | |
4327 | UNBLOCK_INPUT; | |
1a578e9b | 4328 | #endif /* not macintosh */ |
d12d0a9b | 4329 | #endif /* not WINDOWSNT */ |
82641697 GM |
4330 | return value; |
4331 | } | |
4332 | ||
4333 | ||
4334 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4335 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4336 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4337 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4338 | |
82641697 GM |
4339 | static Lisp_Object |
4340 | face_boolean_x_resource_value (value, signal_p) | |
4341 | Lisp_Object value; | |
4342 | int signal_p; | |
4343 | { | |
4344 | Lisp_Object result = make_number (0); | |
4345 | ||
4346 | xassert (STRINGP (value)); | |
178c5d9c | 4347 | |
82641697 GM |
4348 | if (xstricmp (XSTRING (value)->data, "on") == 0 |
4349 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
4350 | result = Qt; | |
4351 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
4352 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
4353 | result = Qnil; | |
4354 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4355 | result = Qunspecified; | |
4356 | else if (signal_p) | |
4357 | signal_error ("Invalid face attribute value from X resource", value); | |
4358 | ||
4359 | return result; | |
4360 | } | |
4361 | ||
4362 | ||
4363 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4364 | Finternal_set_lisp_face_attribute_from_resource, | |
4365 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4366 | 3, 4, 0, doc: /* */) |
4367 | (face, attr, value, frame) | |
82641697 GM |
4368 | Lisp_Object face, attr, value, frame; |
4369 | { | |
b7826503 PJ |
4370 | CHECK_SYMBOL (face); |
4371 | CHECK_SYMBOL (attr); | |
4372 | CHECK_STRING (value); | |
82641697 GM |
4373 | |
4374 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4375 | value = Qunspecified; | |
4376 | else if (EQ (attr, QCheight)) | |
4377 | { | |
4378 | value = Fstring_to_number (value, make_number (10)); | |
4379 | if (XINT (value) <= 0) | |
4380 | signal_error ("Invalid face height from X resource", value); | |
4381 | } | |
4382 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4383 | value = face_boolean_x_resource_value (value, 1); | |
4384 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
4385 | value = intern (XSTRING (value)->data); | |
4386 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
4387 | value = face_boolean_x_resource_value (value, 1); | |
4388 | else if (EQ (attr, QCunderline) | |
4389 | || EQ (attr, QCoverline) | |
27188d11 | 4390 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4391 | { |
4392 | Lisp_Object boolean_value; | |
4393 | ||
4394 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4395 | VALUE does NOT specify a color. */ | |
4396 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4397 | if (SYMBOLP (boolean_value)) | |
4398 | value = boolean_value; | |
4399 | } | |
27188d11 GM |
4400 | else if (EQ (attr, QCbox)) |
4401 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); | |
82641697 GM |
4402 | |
4403 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4404 | } | |
4405 | ||
c3cee013 | 4406 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4407 | |
c7ae3284 GM |
4408 | \f |
4409 | /*********************************************************************** | |
4410 | Menu face | |
4411 | ***********************************************************************/ | |
4412 | ||
bce72079 | 4413 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4414 | |
bce72079 GM |
4415 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4416 | ||
4417 | static void | |
4418 | x_update_menu_appearance (f) | |
c7ae3284 | 4419 | struct frame *f; |
c7ae3284 | 4420 | { |
a03ad468 | 4421 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4422 | XrmDatabase rdb; |
178c5d9c | 4423 | |
bce72079 GM |
4424 | if (dpyinfo |
4425 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4426 | rdb != NULL)) | |
c7ae3284 | 4427 | { |
bce72079 GM |
4428 | char line[512]; |
4429 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
4430 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4431 | char *myname = XSTRING (Vx_resource_name)->data; | |
4432 | int changed_p = 0; | |
8ad582ac GM |
4433 | #ifdef USE_MOTIF |
4434 | const char *popup_path = "popup_menu"; | |
4435 | #else | |
4436 | const char *popup_path = "menu.popup"; | |
4437 | #endif | |
823ba8d8 | 4438 | |
bce72079 GM |
4439 | if (STRINGP (LFACE_FOREGROUND (lface))) |
4440 | { | |
8ad582ac GM |
4441 | sprintf (line, "%s.%s*foreground: %s", |
4442 | myname, popup_path, | |
4443 | XSTRING (LFACE_FOREGROUND (lface))->data); | |
bce72079 GM |
4444 | XrmPutLineResource (&rdb, line); |
4445 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
4446 | myname, XSTRING (LFACE_FOREGROUND (lface))->data); | |
4447 | XrmPutLineResource (&rdb, line); | |
4448 | changed_p = 1; | |
4449 | } | |
178c5d9c | 4450 | |
bce72079 GM |
4451 | if (STRINGP (LFACE_BACKGROUND (lface))) |
4452 | { | |
8ad582ac GM |
4453 | sprintf (line, "%s.%s*background: %s", |
4454 | myname, popup_path, | |
4455 | XSTRING (LFACE_BACKGROUND (lface))->data); | |
bce72079 GM |
4456 | XrmPutLineResource (&rdb, line); |
4457 | sprintf (line, "%s.pane.menubar*background: %s", | |
4458 | myname, XSTRING (LFACE_BACKGROUND (lface))->data); | |
4459 | XrmPutLineResource (&rdb, line); | |
4460 | changed_p = 1; | |
4461 | } | |
a03ad468 | 4462 | |
bce72079 GM |
4463 | if (face->font_name |
4464 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4465 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4466 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
4467 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4468 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4469 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4470 | { | |
a03ad468 | 4471 | #ifdef USE_MOTIF |
bce72079 | 4472 | const char *suffix = "List"; |
a03ad468 | 4473 | #else |
bce72079 GM |
4474 | const char *suffix = ""; |
4475 | #endif | |
4476 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
4477 | myname, suffix, face->font_name); | |
4478 | XrmPutLineResource (&rdb, line); | |
2eddf899 GM |
4479 | sprintf (line, "%s.%s*font%s: %s", |
4480 | myname, popup_path, suffix, face->font_name); | |
bce72079 GM |
4481 | XrmPutLineResource (&rdb, line); |
4482 | changed_p = 1; | |
4483 | } | |
c7ae3284 | 4484 | |
bce72079 | 4485 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 4486 | free_frame_menubar (f); |
c7ae3284 GM |
4487 | } |
4488 | } | |
4489 | ||
bce72079 | 4490 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
4491 | |
4492 | ||
cdfaafa9 MB |
4493 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
4494 | Sface_attribute_relative_p, | |
4495 | 2, 2, 0, | |
4496 | doc: /* Return non-nil if face ATTRIBUTE VALUE is relative. */) | |
4497 | (attribute, value) | |
d0930289 | 4498 | Lisp_Object attribute, value; |
cdfaafa9 MB |
4499 | { |
4500 | if (EQ (value, Qunspecified)) | |
4501 | return Qt; | |
4502 | else if (EQ (attribute, QCheight)) | |
4503 | return INTEGERP (value) ? Qnil : Qt; | |
4504 | else | |
4505 | return Qnil; | |
4506 | } | |
4507 | ||
4508 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
4509 | 3, 3, 0, | |
4510 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
4511 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
4512 | the result will be absolute, otherwise it will be relative. */) | |
4513 | (attribute, value1, value2) | |
4514 | Lisp_Object attribute, value1, value2; | |
4515 | { | |
4516 | if (EQ (value1, Qunspecified)) | |
4517 | return value2; | |
4518 | else if (EQ (attribute, QCheight)) | |
4519 | return merge_face_heights (value1, value2, value1, Qnil); | |
4520 | else | |
4521 | return value1; | |
4522 | } | |
4523 | ||
82641697 GM |
4524 | |
4525 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4526 | Sinternal_get_lisp_face_attribute, | |
4527 | 2, 3, 0, | |
7ee72033 | 4528 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
4529 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
4530 | face attribute name, signal an error. | |
4531 | If the optional argument FRAME is given, report on face FACE in that | |
4532 | frame. If FRAME is t, report on the defaults for face FACE (for new | |
7ee72033 MB |
4533 | frames). If FRAME is omitted or nil, use the selected frame. */) |
4534 | (symbol, keyword, frame) | |
82641697 GM |
4535 | Lisp_Object symbol, keyword, frame; |
4536 | { | |
4537 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4538 | |
b7826503 PJ |
4539 | CHECK_SYMBOL (symbol); |
4540 | CHECK_SYMBOL (keyword); | |
82641697 GM |
4541 | |
4542 | if (EQ (frame, Qt)) | |
4543 | lface = lface_from_face_name (NULL, symbol, 1); | |
4544 | else | |
4545 | { | |
4546 | if (NILP (frame)) | |
c0617987 | 4547 | frame = selected_frame; |
b7826503 | 4548 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4549 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
4550 | } | |
4551 | ||
4552 | if (EQ (keyword, QCfamily)) | |
4553 | value = LFACE_FAMILY (lface); | |
4554 | else if (EQ (keyword, QCheight)) | |
4555 | value = LFACE_HEIGHT (lface); | |
4556 | else if (EQ (keyword, QCweight)) | |
4557 | value = LFACE_WEIGHT (lface); | |
4558 | else if (EQ (keyword, QCslant)) | |
4559 | value = LFACE_SLANT (lface); | |
4560 | else if (EQ (keyword, QCunderline)) | |
4561 | value = LFACE_UNDERLINE (lface); | |
4562 | else if (EQ (keyword, QCoverline)) | |
4563 | value = LFACE_OVERLINE (lface); | |
4564 | else if (EQ (keyword, QCstrike_through)) | |
4565 | value = LFACE_STRIKE_THROUGH (lface); | |
4566 | else if (EQ (keyword, QCbox)) | |
4567 | value = LFACE_BOX (lface); | |
4568 | else if (EQ (keyword, QCinverse_video) | |
4569 | || EQ (keyword, QCreverse_video)) | |
4570 | value = LFACE_INVERSE (lface); | |
4571 | else if (EQ (keyword, QCforeground)) | |
4572 | value = LFACE_FOREGROUND (lface); | |
4573 | else if (EQ (keyword, QCbackground)) | |
4574 | value = LFACE_BACKGROUND (lface); | |
4575 | else if (EQ (keyword, QCstipple)) | |
4576 | value = LFACE_STIPPLE (lface); | |
4577 | else if (EQ (keyword, QCwidth)) | |
4578 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4579 | else if (EQ (keyword, QCinherit)) |
4580 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4581 | else if (EQ (keyword, QCfont)) |
4582 | value = LFACE_FONT (lface); | |
82641697 GM |
4583 | else |
4584 | signal_error ("Invalid face attribute name", keyword); | |
4585 | ||
4586 | return value; | |
4587 | } | |
4588 | ||
4589 | ||
4590 | DEFUN ("internal-lisp-face-attribute-values", | |
4591 | Finternal_lisp_face_attribute_values, | |
4592 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
4593 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
4594 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
4595 | (attr) | |
82641697 GM |
4596 | Lisp_Object attr; |
4597 | { | |
4598 | Lisp_Object result = Qnil; | |
178c5d9c | 4599 | |
b7826503 | 4600 | CHECK_SYMBOL (attr); |
178c5d9c | 4601 | |
82641697 GM |
4602 | if (EQ (attr, QCweight) |
4603 | || EQ (attr, QCslant) | |
4604 | || EQ (attr, QCwidth)) | |
4605 | { | |
4606 | /* Extract permissible symbols from tables. */ | |
4607 | struct table_entry *table; | |
4608 | int i, dim; | |
178c5d9c | 4609 | |
82641697 GM |
4610 | if (EQ (attr, QCweight)) |
4611 | table = weight_table, dim = DIM (weight_table); | |
4612 | else if (EQ (attr, QCslant)) | |
4613 | table = slant_table, dim = DIM (slant_table); | |
4614 | else | |
4615 | table = swidth_table, dim = DIM (swidth_table); | |
4616 | ||
4617 | for (i = 0; i < dim; ++i) | |
4618 | { | |
4619 | Lisp_Object symbol = *table[i].symbol; | |
4620 | Lisp_Object tail = result; | |
4621 | ||
4622 | while (!NILP (tail) | |
4623 | && !EQ (XCAR (tail), symbol)) | |
4624 | tail = XCDR (tail); | |
4625 | ||
4626 | if (NILP (tail)) | |
4627 | result = Fcons (symbol, result); | |
4628 | } | |
4629 | } | |
4630 | else if (EQ (attr, QCunderline)) | |
4631 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4632 | else if (EQ (attr, QCoverline)) | |
4633 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4634 | else if (EQ (attr, QCstrike_through)) | |
4635 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4636 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4637 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4638 | ||
4639 | return result; | |
4640 | } | |
178c5d9c | 4641 | |
82641697 GM |
4642 | |
4643 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4644 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 4645 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
4646 | Default face attributes override any local face attributes. */) |
4647 | (face, frame) | |
82641697 GM |
4648 | Lisp_Object face, frame; |
4649 | { | |
aad40737 MB |
4650 | int i; |
4651 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4652 | ||
b7826503 | 4653 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4654 | global_lface = lface_from_face_name (NULL, face, 1); |
4655 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4656 | if (NILP (local_lface)) | |
4657 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4658 | |
cec33c90 SM |
4659 | /* Make every specified global attribute override the local one. |
4660 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4661 | the local frame is defined from default specs in `face-defface-spec' | |
4662 | and those should be overridden by global settings. Hence the strange | |
4663 | "global before local" priority. */ | |
aad40737 MB |
4664 | lvec = XVECTOR (local_lface)->contents; |
4665 | gvec = XVECTOR (global_lface)->contents; | |
4666 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4667 | if (! UNSPECIFIEDP (gvec[i])) | |
4668 | lvec[i] = gvec[i]; | |
334a2e2a GM |
4669 | |
4670 | return Qnil; | |
82641697 GM |
4671 | } |
4672 | ||
4673 | ||
4674 | /* The following function is implemented for compatibility with 20.2. | |
4675 | The function is used in x-resolve-fonts when it is asked to | |
4676 | return fonts with the same size as the font of a face. This is | |
4677 | done in fontset.el. */ | |
4678 | ||
178c5d9c | 4679 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
e3cd9e7f | 4680 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
228299fa GM |
4681 | If the optional argument FRAME is given, report on face FACE in that frame. |
4682 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
4683 | The font default for a face is either nil, or a list | |
4684 | of the form (bold), (italic) or (bold italic). | |
7ee72033 MB |
4685 | If FRAME is omitted or nil, use the selected frame. */) |
4686 | (face, frame) | |
82641697 GM |
4687 | Lisp_Object face, frame; |
4688 | { | |
4689 | if (EQ (frame, Qt)) | |
4690 | { | |
4691 | Lisp_Object result = Qnil; | |
4692 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4693 | ||
4694 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4695 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4696 | result = Fcons (Qbold, result); | |
178c5d9c | 4697 | |
0f2c6573 | 4698 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
4699 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
4700 | result = Fcons (Qitalic, result); | |
178c5d9c | 4701 | |
82641697 GM |
4702 | return result; |
4703 | } | |
4704 | else | |
4705 | { | |
4706 | struct frame *f = frame_or_selected_frame (frame, 1); | |
39506348 | 4707 | int face_id = lookup_named_face (f, face, 0); |
82641697 | 4708 | struct face *face = FACE_FROM_ID (f, face_id); |
b5de343d | 4709 | return face ? build_string (face->font_name) : Qnil; |
82641697 GM |
4710 | } |
4711 | } | |
4712 | ||
4713 | ||
4714 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4715 | all attributes are `equal'. Tries to be fast because this function | |
4716 | is called quite often. */ | |
4717 | ||
4718 | static INLINE int | |
4719 | lface_equal_p (v1, v2) | |
4720 | Lisp_Object *v1, *v2; | |
4721 | { | |
4722 | int i, equal_p = 1; | |
4723 | ||
4724 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4725 | { | |
4726 | Lisp_Object a = v1[i]; | |
4727 | Lisp_Object b = v2[i]; | |
4728 | ||
4729 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4730 | and the other is specified. */ | |
4731 | equal_p = XTYPE (a) == XTYPE (b); | |
4732 | if (!equal_p) | |
4733 | break; | |
4734 | ||
4735 | if (!EQ (a, b)) | |
4736 | { | |
4737 | switch (XTYPE (a)) | |
4738 | { | |
4739 | case Lisp_String: | |
ae4b4ba5 GM |
4740 | equal_p = ((STRING_BYTES (XSTRING (a)) |
4741 | == STRING_BYTES (XSTRING (b))) | |
82641697 | 4742 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, |
ae4b4ba5 | 4743 | STRING_BYTES (XSTRING (a))) == 0); |
82641697 | 4744 | break; |
178c5d9c | 4745 | |
82641697 GM |
4746 | case Lisp_Int: |
4747 | case Lisp_Symbol: | |
4748 | equal_p = 0; | |
4749 | break; | |
178c5d9c | 4750 | |
82641697 GM |
4751 | default: |
4752 | equal_p = !NILP (Fequal (a, b)); | |
4753 | break; | |
4754 | } | |
4755 | } | |
4756 | } | |
178c5d9c | 4757 | |
82641697 GM |
4758 | return equal_p; |
4759 | } | |
4760 | ||
4761 | ||
4762 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4763 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 4764 | doc: /* True if FACE1 and FACE2 are equal. |
228299fa GM |
4765 | If the optional argument FRAME is given, report on face FACE in that frame. |
4766 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
4767 | If FRAME is omitted or nil, use the selected frame. */) |
4768 | (face1, face2, frame) | |
82641697 GM |
4769 | Lisp_Object face1, face2, frame; |
4770 | { | |
4771 | int equal_p; | |
4772 | struct frame *f; | |
4773 | Lisp_Object lface1, lface2; | |
178c5d9c | 4774 | |
82641697 GM |
4775 | if (EQ (frame, Qt)) |
4776 | f = NULL; | |
4777 | else | |
4778 | /* Don't use check_x_frame here because this function is called | |
4779 | before X frames exist. At that time, if FRAME is nil, | |
4780 | selected_frame will be used which is the frame dumped with | |
4781 | Emacs. That frame is not an X frame. */ | |
4782 | f = frame_or_selected_frame (frame, 2); | |
4783 | ||
4784 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4785 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4786 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4787 | XVECTOR (lface2)->contents); | |
4788 | return equal_p ? Qt : Qnil; | |
4789 | } | |
4790 | ||
178c5d9c | 4791 | |
82641697 GM |
4792 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
4793 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 4794 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
4795 | If the optional argument FRAME is given, report on face FACE in that frame. |
4796 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
4797 | If FRAME is omitted or nil, use the selected frame. */) |
4798 | (face, frame) | |
82641697 GM |
4799 | Lisp_Object face, frame; |
4800 | { | |
4801 | struct frame *f; | |
4802 | Lisp_Object lface; | |
4803 | int i; | |
4804 | ||
4805 | if (NILP (frame)) | |
c0617987 | 4806 | frame = selected_frame; |
b7826503 | 4807 | CHECK_LIVE_FRAME (frame); |
c0617987 | 4808 | f = XFRAME (frame); |
178c5d9c | 4809 | |
82641697 GM |
4810 | if (EQ (frame, Qt)) |
4811 | lface = lface_from_face_name (NULL, face, 1); | |
4812 | else | |
4813 | lface = lface_from_face_name (f, face, 1); | |
4814 | ||
4815 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 4816 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 4817 | break; |
178c5d9c | 4818 | |
82641697 GM |
4819 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
4820 | } | |
4821 | ||
4822 | ||
4823 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 4824 | 0, 1, 0, |
7ee72033 MB |
4825 | doc: /* Return an alist of frame-local faces defined on FRAME. |
4826 | For internal use only. */) | |
4827 | (frame) | |
82641697 GM |
4828 | Lisp_Object frame; |
4829 | { | |
4830 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4831 | return f->face_alist; | |
4832 | } | |
4833 | ||
4834 | ||
4835 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4836 | below in computing a hash value for a Lisp face. */ | |
4837 | ||
4838 | static INLINE unsigned | |
4839 | hash_string_case_insensitive (string) | |
4840 | Lisp_Object string; | |
4841 | { | |
4842 | unsigned char *s; | |
4843 | unsigned hash = 0; | |
4844 | xassert (STRINGP (string)); | |
4845 | for (s = XSTRING (string)->data; *s; ++s) | |
4846 | hash = (hash << 1) ^ tolower (*s); | |
4847 | return hash; | |
4848 | } | |
4849 | ||
4850 | ||
4851 | /* Return a hash code for face attribute vector V. */ | |
4852 | ||
4853 | static INLINE unsigned | |
4854 | lface_hash (v) | |
4855 | Lisp_Object *v; | |
4856 | { | |
4857 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4858 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4859 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
4860 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
4861 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
4862 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
4863 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
4864 | } | |
4865 | ||
4866 | ||
4867 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4868 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
4869 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
4870 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
4871 | |
4872 | static INLINE int | |
4873 | lface_same_font_attributes_p (lface1, lface2) | |
4874 | Lisp_Object *lface1, *lface2; | |
4875 | { | |
4876 | xassert (lface_fully_specified_p (lface1) | |
4877 | && lface_fully_specified_p (lface2)); | |
4878 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4879 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
2c20458f | 4880 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 4881 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 4882 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 4883 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
4884 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
4885 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
4886 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 4887 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
39506348 KH |
4888 | && xstricmp (XSTRING (lface1[LFACE_FONT_INDEX])->data, |
4889 | XSTRING (lface2[LFACE_FONT_INDEX])->data)))); | |
82641697 GM |
4890 | } |
4891 | ||
4892 | ||
4893 | \f | |
4894 | /*********************************************************************** | |
4895 | Realized Faces | |
4896 | ***********************************************************************/ | |
4897 | ||
4898 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4899 | vector ATTR. */ |
82641697 GM |
4900 | |
4901 | static struct face * | |
39506348 | 4902 | make_realized_face (attr) |
82641697 | 4903 | Lisp_Object *attr; |
82641697 GM |
4904 | { |
4905 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4906 | bzero (face, sizeof *face); | |
39506348 | 4907 | face->ascii_face = face; |
82641697 GM |
4908 | bcopy (attr, face->lface, sizeof face->lface); |
4909 | return face; | |
4910 | } | |
4911 | ||
4912 | ||
4913 | /* Free realized face FACE, including its X resources. FACE may | |
4914 | be null. */ | |
4915 | ||
4916 | static void | |
4917 | free_realized_face (f, face) | |
4918 | struct frame *f; | |
4919 | struct face *face; | |
4920 | { | |
4921 | if (face) | |
4922 | { | |
c3cee013 JR |
4923 | #ifdef HAVE_WINDOW_SYSTEM |
4924 | if (FRAME_WINDOW_P (f)) | |
82641697 | 4925 | { |
39506348 KH |
4926 | /* Free fontset of FACE if it is ASCII face. */ |
4927 | if (face->fontset >= 0 && face == face->ascii_face) | |
4928 | free_face_fontset (f, face); | |
82641697 GM |
4929 | if (face->gc) |
4930 | { | |
4931 | x_free_gc (f, face->gc); | |
4932 | face->gc = 0; | |
4933 | } | |
178c5d9c | 4934 | |
82641697 GM |
4935 | free_face_colors (f, face); |
4936 | x_destroy_bitmap (f, face->stipple); | |
4937 | } | |
c3cee013 | 4938 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4939 | |
4940 | xfree (face); | |
4941 | } | |
4942 | } | |
4943 | ||
4944 | ||
4945 | /* Prepare face FACE for subsequent display on frame F. This | |
4946 | allocated GCs if they haven't been allocated yet or have been freed | |
4947 | by clearing the face cache. */ | |
4948 | ||
4949 | void | |
4950 | prepare_face_for_display (f, face) | |
4951 | struct frame *f; | |
4952 | struct face *face; | |
4953 | { | |
c3cee013 JR |
4954 | #ifdef HAVE_WINDOW_SYSTEM |
4955 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 4956 | |
82641697 GM |
4957 | if (face->gc == 0) |
4958 | { | |
4959 | XGCValues xgcv; | |
4960 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4961 | ||
4962 | xgcv.foreground = face->foreground; | |
4963 | xgcv.background = face->background; | |
c3cee013 | 4964 | #ifdef HAVE_X_WINDOWS |
82641697 | 4965 | xgcv.graphics_exposures = False; |
c3cee013 | 4966 | #endif |
82641697 GM |
4967 | /* The font of FACE may be null if we couldn't load it. */ |
4968 | if (face->font) | |
4969 | { | |
c3cee013 | 4970 | #ifdef HAVE_X_WINDOWS |
82641697 | 4971 | xgcv.font = face->font->fid; |
c3cee013 JR |
4972 | #endif |
4973 | #ifdef WINDOWSNT | |
4974 | xgcv.font = face->font; | |
1a578e9b AC |
4975 | #endif |
4976 | #ifdef macintosh | |
4977 | xgcv.font = face->font; | |
c3cee013 | 4978 | #endif |
82641697 GM |
4979 | mask |= GCFont; |
4980 | } | |
4981 | ||
4982 | BLOCK_INPUT; | |
c3cee013 | 4983 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
4984 | if (face->stipple) |
4985 | { | |
be8a72f4 | 4986 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4987 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4988 | mask |= GCFillStyle | GCStipple; | |
4989 | } | |
c3cee013 | 4990 | #endif |
82641697 GM |
4991 | face->gc = x_create_gc (f, mask, &xgcv); |
4992 | UNBLOCK_INPUT; | |
4993 | } | |
c3cee013 | 4994 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4995 | } |
4996 | ||
82641697 GM |
4997 | \f |
4998 | /*********************************************************************** | |
4999 | Face Cache | |
5000 | ***********************************************************************/ | |
5001 | ||
5002 | /* Return a new face cache for frame F. */ | |
5003 | ||
5004 | static struct face_cache * | |
5005 | make_face_cache (f) | |
5006 | struct frame *f; | |
5007 | { | |
5008 | struct face_cache *c; | |
5009 | int size; | |
5010 | ||
5011 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5012 | bzero (c, sizeof *c); | |
5013 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5014 | c->buckets = (struct face **) xmalloc (size); | |
5015 | bzero (c->buckets, size); | |
5016 | c->size = 50; | |
5017 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5018 | c->f = f; | |
ceeda019 | 5019 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5020 | return c; |
5021 | } | |
5022 | ||
5023 | ||
5024 | /* Clear out all graphics contexts for all realized faces, except for | |
5025 | the basic faces. This should be done from time to time just to avoid | |
5026 | keeping too many graphics contexts that are no longer needed. */ | |
5027 | ||
5028 | static void | |
5029 | clear_face_gcs (c) | |
5030 | struct face_cache *c; | |
5031 | { | |
c3cee013 | 5032 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5033 | { |
c3cee013 | 5034 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5035 | int i; |
5036 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5037 | { | |
5038 | struct face *face = c->faces_by_id[i]; | |
5039 | if (face && face->gc) | |
5040 | { | |
5041 | x_free_gc (c->f, face->gc); | |
5042 | face->gc = 0; | |
5043 | } | |
5044 | } | |
c3cee013 | 5045 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5046 | } |
5047 | } | |
5048 | ||
5049 | ||
5050 | /* Free all realized faces in face cache C, including basic faces. C | |
5051 | may be null. If faces are freed, make sure the frame's current | |
5052 | matrix is marked invalid, so that a display caused by an expose | |
5053 | event doesn't try to use faces we destroyed. */ | |
5054 | ||
5055 | static void | |
5056 | free_realized_faces (c) | |
5057 | struct face_cache *c; | |
5058 | { | |
5059 | if (c && c->used) | |
5060 | { | |
5061 | int i, size; | |
5062 | struct frame *f = c->f; | |
5063 | ||
84ec3b4b GM |
5064 | /* We must block input here because we can't process X events |
5065 | safely while only some faces are freed, or when the frame's | |
5066 | current matrix still references freed faces. */ | |
5067 | BLOCK_INPUT; | |
5068 | ||
82641697 GM |
5069 | for (i = 0; i < c->used; ++i) |
5070 | { | |
5071 | free_realized_face (f, c->faces_by_id[i]); | |
5072 | c->faces_by_id[i] = NULL; | |
5073 | } | |
178c5d9c | 5074 | |
82641697 GM |
5075 | c->used = 0; |
5076 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5077 | bzero (c->buckets, size); | |
5078 | ||
5079 | /* Must do a thorough redisplay the next time. Mark current | |
5080 | matrices as invalid because they will reference faces freed | |
5081 | above. This function is also called when a frame is | |
5082 | destroyed. In this case, the root window of F is nil. */ | |
5083 | if (WINDOWP (f->root_window)) | |
5084 | { | |
5085 | clear_current_matrices (f); | |
5086 | ++windows_or_buffers_changed; | |
5087 | } | |
84ec3b4b GM |
5088 | |
5089 | UNBLOCK_INPUT; | |
82641697 GM |
5090 | } |
5091 | } | |
5092 | ||
5093 | ||
39506348 KH |
5094 | /* Free all faces realized for multibyte characters on frame F that |
5095 | has FONTSET. */ | |
5096 | ||
5097 | void | |
5098 | free_realized_multibyte_face (f, fontset) | |
5099 | struct frame *f; | |
5100 | int fontset; | |
5101 | { | |
5102 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5103 | struct face *face; | |
5104 | int i; | |
5105 | ||
84ec3b4b GM |
5106 | /* We must block input here because we can't process X events safely |
5107 | while only some faces are freed, or when the frame's current | |
5108 | matrix still references freed faces. */ | |
5109 | BLOCK_INPUT; | |
178c5d9c | 5110 | |
39506348 KH |
5111 | for (i = 0; i < cache->used; i++) |
5112 | { | |
5113 | face = cache->faces_by_id[i]; | |
5114 | if (face | |
5115 | && face != face->ascii_face | |
5116 | && face->fontset == fontset) | |
5117 | { | |
5118 | uncache_face (cache, face); | |
5119 | free_realized_face (f, face); | |
5120 | } | |
5121 | } | |
178c5d9c | 5122 | |
84ec3b4b GM |
5123 | /* Must do a thorough redisplay the next time. Mark current |
5124 | matrices as invalid because they will reference faces freed | |
5125 | above. This function is also called when a frame is destroyed. | |
5126 | In this case, the root window of F is nil. */ | |
39506348 KH |
5127 | if (WINDOWP (f->root_window)) |
5128 | { | |
5129 | clear_current_matrices (f); | |
5130 | ++windows_or_buffers_changed; | |
5131 | } | |
178c5d9c | 5132 | |
84ec3b4b | 5133 | UNBLOCK_INPUT; |
39506348 KH |
5134 | } |
5135 | ||
5136 | ||
82641697 GM |
5137 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5138 | This is done after attributes of a named face have been changed, | |
5139 | because we can't tell which realized faces depend on that face. */ | |
5140 | ||
5141 | void | |
5142 | free_all_realized_faces (frame) | |
5143 | Lisp_Object frame; | |
5144 | { | |
5145 | if (NILP (frame)) | |
5146 | { | |
5147 | Lisp_Object rest; | |
5148 | FOR_EACH_FRAME (rest, frame) | |
5149 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5150 | } | |
5151 | else | |
5152 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5153 | } | |
5154 | ||
5155 | ||
5156 | /* Free face cache C and faces in it, including their X resources. */ | |
5157 | ||
5158 | static void | |
5159 | free_face_cache (c) | |
5160 | struct face_cache *c; | |
5161 | { | |
5162 | if (c) | |
5163 | { | |
5164 | free_realized_faces (c); | |
5165 | xfree (c->buckets); | |
5166 | xfree (c->faces_by_id); | |
5167 | xfree (c); | |
5168 | } | |
5169 | } | |
5170 | ||
5171 | ||
5172 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5173 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5174 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5175 | otherwise lookup_face would find FACE for every character, even if |
5176 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5177 | |
5178 | static void | |
5179 | cache_face (c, face, hash) | |
5180 | struct face_cache *c; | |
5181 | struct face *face; | |
5182 | unsigned hash; | |
5183 | { | |
5184 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5185 | ||
5186 | face->hash = hash; | |
5187 | ||
5188 | if (face->fontset >= 0) | |
5189 | { | |
5190 | struct face *last = c->buckets[i]; | |
5191 | if (last) | |
5192 | { | |
5193 | while (last->next) | |
5194 | last = last->next; | |
5195 | last->next = face; | |
5196 | face->prev = last; | |
5197 | face->next = NULL; | |
5198 | } | |
5199 | else | |
5200 | { | |
5201 | c->buckets[i] = face; | |
5202 | face->prev = face->next = NULL; | |
5203 | } | |
5204 | } | |
5205 | else | |
5206 | { | |
5207 | face->prev = NULL; | |
5208 | face->next = c->buckets[i]; | |
5209 | if (face->next) | |
5210 | face->next->prev = face; | |
5211 | c->buckets[i] = face; | |
5212 | } | |
5213 | ||
5214 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5215 | slot as FACE->id. */ | |
5216 | for (i = 0; i < c->used; ++i) | |
5217 | if (c->faces_by_id[i] == NULL) | |
5218 | break; | |
5219 | face->id = i; | |
178c5d9c | 5220 | |
82641697 GM |
5221 | /* Maybe enlarge C->faces_by_id. */ |
5222 | if (i == c->used && c->used == c->size) | |
5223 | { | |
5224 | int new_size = 2 * c->size; | |
5225 | int sz = new_size * sizeof *c->faces_by_id; | |
5226 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5227 | c->size = new_size; | |
5228 | } | |
5229 | ||
5230 | #if GLYPH_DEBUG | |
5231 | /* Check that FACE got a unique id. */ | |
5232 | { | |
5233 | int j, n; | |
5234 | struct face *face; | |
5235 | ||
5236 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5237 | for (face = c->buckets[j]; face; face = face->next) | |
5238 | if (face->id == i) | |
5239 | ++n; | |
5240 | ||
5241 | xassert (n == 1); | |
5242 | } | |
5243 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5244 | |
82641697 GM |
5245 | c->faces_by_id[i] = face; |
5246 | if (i == c->used) | |
5247 | ++c->used; | |
5248 | } | |
5249 | ||
5250 | ||
5251 | /* Remove face FACE from cache C. */ | |
5252 | ||
5253 | static void | |
5254 | uncache_face (c, face) | |
5255 | struct face_cache *c; | |
5256 | struct face *face; | |
5257 | { | |
5258 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5259 | |
82641697 GM |
5260 | if (face->prev) |
5261 | face->prev->next = face->next; | |
5262 | else | |
5263 | c->buckets[i] = face->next; | |
178c5d9c | 5264 | |
82641697 GM |
5265 | if (face->next) |
5266 | face->next->prev = face->prev; | |
178c5d9c | 5267 | |
82641697 GM |
5268 | c->faces_by_id[face->id] = NULL; |
5269 | if (face->id == c->used) | |
5270 | --c->used; | |
5271 | } | |
5272 | ||
5273 | ||
5274 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5275 | of frame F. The face will be used to display character C. Value |
5276 | is the ID of the face found. If no suitable face is found, realize | |
5277 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5278 | is a face that has the same attributes. */ |
82641697 GM |
5279 | |
5280 | INLINE int | |
39506348 | 5281 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5282 | struct frame *f; |
5283 | Lisp_Object *attr; | |
39506348 KH |
5284 | int c; |
5285 | struct face *base_face; | |
82641697 | 5286 | { |
39506348 | 5287 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5288 | unsigned hash; |
5289 | int i; | |
5290 | struct face *face; | |
5291 | ||
39506348 | 5292 | xassert (cache != NULL); |
82641697 GM |
5293 | check_lface_attrs (attr); |
5294 | ||
5295 | /* Look up ATTR in the face cache. */ | |
5296 | hash = lface_hash (attr); | |
5297 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5298 | |
39506348 | 5299 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5300 | if (face->hash == hash |
44747bd0 | 5301 | && (!FRAME_WINDOW_P (f) |
39506348 | 5302 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5303 | && lface_equal_p (face->lface, attr)) |
5304 | break; | |
5305 | ||
5306 | /* If not found, realize a new face. */ | |
5307 | if (face == NULL) | |
39506348 | 5308 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5309 | |
5310 | #if GLYPH_DEBUG | |
5311 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5312 | |
5313 | /* When this function is called from face_for_char (in this case, C is | |
5314 | a multibyte character), a fontset of a face returned by | |
5315 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5316 | C) is not sutisfied. The fontset is set for this face by | |
5317 | face_for_char later. */ | |
c87a1fda | 5318 | #if 0 |
c3cee013 | 5319 | if (FRAME_WINDOW_P (f)) |
39506348 | 5320 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5321 | #endif |
82641697 | 5322 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5323 | |
82641697 GM |
5324 | return face->id; |
5325 | } | |
5326 | ||
5327 | ||
5328 | /* Return the face id of the realized face for named face SYMBOL on | |
b5de343d GM |
5329 | frame F suitable for displaying character C. Value is -1 if the |
5330 | face couldn't be determined, which might happen if the default face | |
5331 | isn't realized and cannot be realized. */ | |
82641697 GM |
5332 | |
5333 | int | |
39506348 | 5334 | lookup_named_face (f, symbol, c) |
82641697 GM |
5335 | struct frame *f; |
5336 | Lisp_Object symbol; | |
39506348 | 5337 | int c; |
82641697 GM |
5338 | { |
5339 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5340 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5341 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5342 | ||
b5de343d GM |
5343 | if (default_face == NULL) |
5344 | { | |
5345 | if (!realize_basic_faces (f)) | |
5346 | return -1; | |
5347 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5348 | } | |
5349 | ||
82641697 GM |
5350 | get_lface_attributes (f, symbol, symbol_attrs, 1); |
5351 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5352 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5353 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
5354 | } |
5355 | ||
5356 | ||
5357 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
5358 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
5359 | ||
5360 | int | |
5361 | ascii_face_of_lisp_face (f, lface_id) | |
5362 | struct frame *f; | |
5363 | int lface_id; | |
5364 | { | |
5365 | int face_id; | |
178c5d9c | 5366 | |
82641697 GM |
5367 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
5368 | { | |
5369 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
39506348 | 5370 | face_id = lookup_named_face (f, face_name, 0); |
82641697 GM |
5371 | } |
5372 | else | |
5373 | face_id = -1; | |
5374 | ||
5375 | return face_id; | |
5376 | } | |
5377 | ||
5378 | ||
5379 | /* Return a face for charset ASCII that is like the face with id | |
5380 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
5381 | STEPS < 0 means larger. Value is the id of the face. */ | |
5382 | ||
5383 | int | |
5384 | smaller_face (f, face_id, steps) | |
5385 | struct frame *f; | |
5386 | int face_id, steps; | |
39506348 | 5387 | { |
c3cee013 | 5388 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5389 | struct face *face; |
5390 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5391 | int pt, last_pt, last_height; | |
5392 | int delta; | |
5393 | int new_face_id; | |
5394 | struct face *new_face; | |
5395 | ||
5396 | /* If not called for an X frame, just return the original face. */ | |
5397 | if (FRAME_TERMCAP_P (f)) | |
5398 | return face_id; | |
5399 | ||
5400 | /* Try in increments of 1/2 pt. */ | |
5401 | delta = steps < 0 ? 5 : -5; | |
5402 | steps = abs (steps); | |
178c5d9c | 5403 | |
82641697 GM |
5404 | face = FACE_FROM_ID (f, face_id); |
5405 | bcopy (face->lface, attrs, sizeof attrs); | |
5406 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5407 | new_face_id = face_id; | |
5408 | last_height = FONT_HEIGHT (face->font); | |
5409 | ||
5410 | while (steps | |
5411 | && pt + delta > 0 | |
5412 | /* Give up if we cannot find a font within 10pt. */ | |
5413 | && abs (last_pt - pt) < 100) | |
5414 | { | |
5415 | /* Look up a face for a slightly smaller/larger font. */ | |
5416 | pt += delta; | |
5417 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 5418 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
5419 | new_face = FACE_FROM_ID (f, new_face_id); |
5420 | ||
5421 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
5422 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
5423 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
5424 | { |
5425 | --steps; | |
5426 | last_height = FONT_HEIGHT (new_face->font); | |
5427 | last_pt = pt; | |
5428 | } | |
5429 | } | |
5430 | ||
5431 | return new_face_id; | |
5432 | ||
c3cee013 | 5433 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5434 | |
5435 | return face_id; | |
178c5d9c | 5436 | |
c3cee013 | 5437 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5438 | } |
5439 | ||
5440 | ||
5441 | /* Return a face for charset ASCII that is like the face with id | |
5442 | FACE_ID on frame F, but has height HEIGHT. */ | |
5443 | ||
5444 | int | |
5445 | face_with_height (f, face_id, height) | |
5446 | struct frame *f; | |
5447 | int face_id; | |
5448 | int height; | |
5449 | { | |
c3cee013 | 5450 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5451 | struct face *face; |
5452 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5453 | ||
5454 | if (FRAME_TERMCAP_P (f) | |
5455 | || height <= 0) | |
5456 | return face_id; | |
5457 | ||
5458 | face = FACE_FROM_ID (f, face_id); | |
5459 | bcopy (face->lface, attrs, sizeof attrs); | |
5460 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5461 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5462 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 5463 | |
82641697 GM |
5464 | return face_id; |
5465 | } | |
5466 | ||
b5de343d | 5467 | |
44747bd0 | 5468 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5469 | frame F suitable for displaying character C, and use attributes of |
5470 | the face FACE_ID for attributes that aren't completely specified by | |
5471 | SYMBOL. This is like lookup_named_face, except that the default | |
5472 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5473 | is assumed to be already realized. */ | |
44747bd0 EZ |
5474 | |
5475 | int | |
39506348 | 5476 | lookup_derived_face (f, symbol, c, face_id) |
44747bd0 EZ |
5477 | struct frame *f; |
5478 | Lisp_Object symbol; | |
39506348 | 5479 | int c; |
44747bd0 EZ |
5480 | int face_id; |
5481 | { | |
5482 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5483 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5484 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5485 | ||
5486 | if (!default_face) | |
5487 | abort (); | |
5488 | ||
5489 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5490 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5491 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5492 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5493 | } |
5494 | ||
f6608d5c RS |
5495 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
5496 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 5497 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
5498 | (plist) |
5499 | Lisp_Object plist; | |
5500 | { | |
5501 | Lisp_Object lface; | |
5502 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
5503 | Qunspecified); | |
5504 | merge_face_vector_with_property (XFRAME (selected_frame), | |
5505 | XVECTOR (lface)->contents, | |
5506 | plist); | |
5507 | return lface; | |
5508 | } | |
5509 | ||
82641697 GM |
5510 | |
5511 | \f | |
5512 | /*********************************************************************** | |
5513 | Font selection | |
5514 | ***********************************************************************/ | |
5515 | ||
5516 | DEFUN ("internal-set-font-selection-order", | |
5517 | Finternal_set_font_selection_order, | |
5518 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 5519 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
5520 | ORDER must be a list of length 4 containing the symbols `:width', |
5521 | `:height', `:weight', and `:slant'. Face attributes appearing | |
5522 | first in ORDER are matched first, e.g. if `:height' appears before | |
5523 | `:weight' in ORDER, font selection first tries to find a font with | |
5524 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
5525 | Value is ORDER. */) |
5526 | (order) | |
228299fa | 5527 | Lisp_Object order; |
82641697 GM |
5528 | { |
5529 | Lisp_Object list; | |
5530 | int i; | |
a08332c0 | 5531 | int indices[DIM (font_sort_order)]; |
178c5d9c | 5532 | |
b7826503 | 5533 | CHECK_LIST (order); |
82641697 GM |
5534 | bzero (indices, sizeof indices); |
5535 | i = 0; | |
5536 | ||
5537 | for (list = order; | |
5538 | CONSP (list) && i < DIM (indices); | |
5539 | list = XCDR (list), ++i) | |
5540 | { | |
5541 | Lisp_Object attr = XCAR (list); | |
5542 | int xlfd; | |
5543 | ||
5544 | if (EQ (attr, QCwidth)) | |
5545 | xlfd = XLFD_SWIDTH; | |
5546 | else if (EQ (attr, QCheight)) | |
5547 | xlfd = XLFD_POINT_SIZE; | |
5548 | else if (EQ (attr, QCweight)) | |
5549 | xlfd = XLFD_WEIGHT; | |
5550 | else if (EQ (attr, QCslant)) | |
5551 | xlfd = XLFD_SLANT; | |
5552 | else | |
5553 | break; | |
5554 | ||
5555 | if (indices[i] != 0) | |
5556 | break; | |
5557 | indices[i] = xlfd; | |
5558 | } | |
5559 | ||
a08332c0 | 5560 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 5561 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
5562 | for (i = 0; i < DIM (font_sort_order); ++i) |
5563 | if (indices[i] == 0) | |
5564 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
5565 | |
5566 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5567 | { | |
5568 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5569 | free_all_realized_faces (Qnil); | |
5570 | } | |
178c5d9c | 5571 | |
82641697 GM |
5572 | return Qnil; |
5573 | } | |
5574 | ||
5575 | ||
5576 | DEFUN ("internal-set-alternative-font-family-alist", | |
5577 | Finternal_set_alternative_font_family_alist, | |
5578 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 5579 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
5580 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5581 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
5582 | be found. Value is ALIST. */) |
5583 | (alist) | |
82641697 GM |
5584 | Lisp_Object alist; |
5585 | { | |
b7826503 | 5586 | CHECK_LIST (alist); |
82641697 GM |
5587 | Vface_alternative_font_family_alist = alist; |
5588 | free_all_realized_faces (Qnil); | |
5589 | return alist; | |
5590 | } | |
5591 | ||
5592 | ||
32fcc231 GM |
5593 | DEFUN ("internal-set-alternative-font-registry-alist", |
5594 | Finternal_set_alternative_font_registry_alist, | |
5595 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 5596 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
5597 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5598 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
5599 | be found. Value is ALIST. */) |
5600 | (alist) | |
32fcc231 GM |
5601 | Lisp_Object alist; |
5602 | { | |
b7826503 | 5603 | CHECK_LIST (alist); |
32fcc231 GM |
5604 | Vface_alternative_font_registry_alist = alist; |
5605 | free_all_realized_faces (Qnil); | |
5606 | return alist; | |
5607 | } | |
5608 | ||
5609 | ||
c3cee013 | 5610 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5611 | |
82641697 GM |
5612 | /* Value is non-zero if FONT is the name of a scalable font. The |
5613 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5614 | are zero for scalable fonts. Intlfonts contain at least one | |
5615 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5616 | just test average width. */ | |
5617 | ||
5618 | static int | |
5619 | font_scalable_p (font) | |
5620 | struct font_name *font; | |
5621 | { | |
5622 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
5623 | return (*s == '0' && *(s + 1) == '\0') |
5624 | #ifdef WINDOWSNT | |
5625 | /* Windows implementation of XLFD is slightly broken for backward | |
5626 | compatibility with previous broken versions, so test for | |
5627 | wildcards as well as 0. */ | |
5628 | || *s == '*' | |
5629 | #endif | |
5630 | ; | |
82641697 GM |
5631 | } |
5632 | ||
5633 | ||
8e1b21a7 KH |
5634 | /* Ignore the difference of font point size less than this value. */ |
5635 | ||
5636 | #define FONT_POINT_SIZE_QUANTUM 5 | |
5637 | ||
82641697 GM |
5638 | /* Value is non-zero if FONT1 is a better match for font attributes |
5639 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5640 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
5641 | sizes. AVGWIDTH, if not zero, is a specified font average width |
5642 | to compare with. */ | |
82641697 GM |
5643 | |
5644 | static int | |
a08332c0 | 5645 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
5646 | int *values; |
5647 | struct font_name *font1, *font2; | |
a08332c0 | 5648 | int compare_pt_p, avgwidth; |
82641697 GM |
5649 | { |
5650 | int i; | |
178c5d9c | 5651 | |
a08332c0 | 5652 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
5653 | { |
5654 | int xlfd_idx = font_sort_order[i]; | |
5655 | ||
5656 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5657 | { | |
5658 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5659 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
178c5d9c | 5660 | |
8e1b21a7 KH |
5661 | if (xlfd_idx == XLFD_POINT_SIZE |
5662 | && abs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) | |
5663 | continue; | |
82641697 GM |
5664 | if (delta1 > delta2) |
5665 | return 0; | |
5666 | else if (delta1 < delta2) | |
5667 | return 1; | |
5668 | else | |
5669 | { | |
5670 | /* The difference may be equal because, e.g., the face | |
5671 | specifies `italic' but we have only `regular' and | |
5672 | `oblique'. Prefer `oblique' in this case. */ | |
5673 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5674 | && font1->numeric[xlfd_idx] > values[i] | |
5675 | && font2->numeric[xlfd_idx] < values[i]) | |
5676 | return 1; | |
5677 | } | |
5678 | } | |
5679 | } | |
178c5d9c | 5680 | |
a08332c0 GM |
5681 | if (avgwidth) |
5682 | { | |
5683 | int delta1 = abs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); | |
5684 | int delta2 = abs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
5685 | if (delta1 > delta2) | |
5686 | return 0; | |
5687 | else if (delta1 < delta2) | |
5688 | return 1; | |
5689 | } | |
5690 | ||
5691 | return font1->registry_priority < font2->registry_priority; | |
82641697 GM |
5692 | } |
5693 | ||
5694 | ||
82641697 GM |
5695 | /* Value is non-zero if FONT is an exact match for face attributes in |
5696 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
5697 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
5698 | with. */ | |
82641697 GM |
5699 | |
5700 | static int | |
a08332c0 | 5701 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
5702 | int *specified; |
5703 | struct font_name *font; | |
a08332c0 | 5704 | int avgwidth; |
82641697 GM |
5705 | { |
5706 | int i; | |
178c5d9c | 5707 | |
a08332c0 | 5708 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
5709 | if (specified[i] != font->numeric[font_sort_order[i]]) |
5710 | break; | |
5711 | ||
a08332c0 GM |
5712 | return (i == DIM (font_sort_order) |
5713 | && (avgwidth <= 0 | |
5714 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
5715 | } |
5716 | ||
5717 | ||
5718 | /* Value is the name of a scaled font, generated from scalable font | |
5719 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5720 | Value is allocated from heap. */ | |
5721 | ||
5722 | static char * | |
5723 | build_scalable_font_name (f, font, specified_pt) | |
5724 | struct frame *f; | |
5725 | struct font_name *font; | |
5726 | int specified_pt; | |
5727 | { | |
5728 | char point_size[20], pixel_size[20]; | |
5729 | int pixel_value; | |
5730 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5731 | double pt; | |
5732 | ||
5733 | /* If scalable font is for a specific resolution, compute | |
5734 | the point size we must specify from the resolution of | |
5735 | the display and the specified resolution of the font. */ | |
5736 | if (font->numeric[XLFD_RESY] != 0) | |
5737 | { | |
5738 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
c660ce4e | 5739 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt; |
82641697 GM |
5740 | } |
5741 | else | |
5742 | { | |
5743 | pt = specified_pt; | |
c660ce4e | 5744 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt; |
82641697 | 5745 | } |
178c5d9c | 5746 | |
82641697 GM |
5747 | /* Set point size of the font. */ |
5748 | sprintf (point_size, "%d", (int) pt); | |
5749 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5750 | font->numeric[XLFD_POINT_SIZE] = pt; | |
178c5d9c | 5751 | |
82641697 GM |
5752 | /* Set pixel size. */ |
5753 | sprintf (pixel_size, "%d", pixel_value); | |
5754 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5755 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 5756 | |
82641697 GM |
5757 | /* If font doesn't specify its resolution, use the |
5758 | resolution of the display. */ | |
5759 | if (font->numeric[XLFD_RESY] == 0) | |
5760 | { | |
5761 | char buffer[20]; | |
5762 | sprintf (buffer, "%d", (int) resy); | |
5763 | font->fields[XLFD_RESY] = buffer; | |
5764 | font->numeric[XLFD_RESY] = resy; | |
5765 | } | |
178c5d9c | 5766 | |
82641697 GM |
5767 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
5768 | { | |
5769 | char buffer[20]; | |
5770 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5771 | sprintf (buffer, "%d", resx); | |
5772 | font->fields[XLFD_RESX] = buffer; | |
5773 | font->numeric[XLFD_RESX] = resx; | |
5774 | } | |
5775 | ||
5776 | return build_font_name (font); | |
5777 | } | |
5778 | ||
5779 | ||
5780 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5781 | can't run a Lisp function here since this function may be called | |
5782 | with input blocked. */ | |
5783 | ||
5784 | static int | |
702a1e8e GM |
5785 | may_use_scalable_font_p (font) |
5786 | char *font; | |
82641697 GM |
5787 | { |
5788 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5789 | return 1; | |
5790 | else if (CONSP (Vscalable_fonts_allowed)) | |
5791 | { | |
5792 | Lisp_Object tail, regexp; | |
178c5d9c | 5793 | |
82641697 GM |
5794 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
5795 | { | |
5796 | regexp = XCAR (tail); | |
5797 | if (STRINGP (regexp) | |
702a1e8e | 5798 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
5799 | return 1; |
5800 | } | |
5801 | } | |
178c5d9c | 5802 | |
82641697 GM |
5803 | return 0; |
5804 | } | |
5805 | ||
82641697 GM |
5806 | |
5807 | ||
2e6621ca GM |
5808 | /* Return the name of the best matching font for face attributes ATTRS |
5809 | in the array of font_name structures FONTS which contains NFONTS | |
5810 | elements. WIDTH_RATIO is a factor with which to multiply average | |
5811 | widths if ATTRS specifies such a width. | |
5812 | ||
5813 | Value is a font name which is allocated from the heap. FONTS is | |
5814 | freed by this function. */ | |
82641697 GM |
5815 | |
5816 | static char * | |
2e6621ca | 5817 | best_matching_font (f, attrs, fonts, nfonts, width_ratio) |
82641697 GM |
5818 | struct frame *f; |
5819 | Lisp_Object *attrs; | |
5820 | struct font_name *fonts; | |
5821 | int nfonts; | |
2e6621ca | 5822 | int width_ratio; |
82641697 GM |
5823 | { |
5824 | char *font_name; | |
5825 | struct font_name *best; | |
334a2e2a | 5826 | int i, pt = 0; |
a08332c0 GM |
5827 | int specified[5]; |
5828 | int exact_p, avgwidth; | |
82641697 GM |
5829 | |
5830 | if (nfonts == 0) | |
5831 | return NULL; | |
5832 | ||
5833 | /* Make specified font attributes available in `specified', | |
5834 | indexed by sort order. */ | |
5835 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5836 | { | |
5837 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 5838 | |
82641697 GM |
5839 | if (xlfd_idx == XLFD_SWIDTH) |
5840 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5841 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5842 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5843 | else if (xlfd_idx == XLFD_WEIGHT) | |
5844 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5845 | else if (xlfd_idx == XLFD_SLANT) | |
5846 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5847 | else | |
5848 | abort (); | |
5849 | } | |
5850 | ||
a08332c0 GM |
5851 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
5852 | ? 0 | |
2e6621ca | 5853 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 5854 | |
82641697 | 5855 | exact_p = 0; |
178c5d9c | 5856 | |
82641697 GM |
5857 | /* Start with the first non-scalable font in the list. */ |
5858 | for (i = 0; i < nfonts; ++i) | |
5859 | if (!font_scalable_p (fonts + i)) | |
5860 | break; | |
5861 | ||
5862 | /* Find the best match among the non-scalable fonts. */ | |
5863 | if (i < nfonts) | |
5864 | { | |
5865 | best = fonts + i; | |
178c5d9c | 5866 | |
82641697 GM |
5867 | for (i = 1; i < nfonts; ++i) |
5868 | if (!font_scalable_p (fonts + i) | |
a08332c0 | 5869 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) |
82641697 GM |
5870 | { |
5871 | best = fonts + i; | |
5872 | ||
a08332c0 | 5873 | exact_p = exact_face_match_p (specified, best, avgwidth); |
82641697 GM |
5874 | if (exact_p) |
5875 | break; | |
5876 | } | |
178c5d9c | 5877 | |
82641697 GM |
5878 | } |
5879 | else | |
5880 | best = NULL; | |
5881 | ||
5882 | /* Unless we found an exact match among non-scalable fonts, see if | |
5883 | we can find a better match among scalable fonts. */ | |
5884 | if (!exact_p) | |
5885 | { | |
5886 | /* A scalable font is better if | |
5887 | ||
5888 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 5889 | |
82641697 GM |
5890 | 2. the best non-scalable font doesn't have the required |
5891 | point size, and the scalable fonts weight, slant, swidth | |
5892 | isn't worse. */ | |
5893 | ||
5894 | int non_scalable_has_exact_height_p; | |
5895 | ||
5896 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5897 | non_scalable_has_exact_height_p = 1; | |
5898 | else | |
5899 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 5900 | |
82641697 GM |
5901 | for (i = 0; i < nfonts; ++i) |
5902 | if (font_scalable_p (fonts + i)) | |
5903 | { | |
5904 | if (best == NULL | |
a08332c0 | 5905 | || better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 5906 | || (!non_scalable_has_exact_height_p |
a08332c0 | 5907 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
82641697 GM |
5908 | best = fonts + i; |
5909 | } | |
5910 | } | |
5911 | ||
5912 | if (font_scalable_p (best)) | |
5913 | font_name = build_scalable_font_name (f, best, pt); | |
5914 | else | |
5915 | font_name = build_font_name (best); | |
178c5d9c | 5916 | |
82641697 GM |
5917 | /* Free font_name structures. */ |
5918 | free_font_names (fonts, nfonts); | |
178c5d9c | 5919 | |
82641697 GM |
5920 | return font_name; |
5921 | } | |
5922 | ||
5923 | ||
3cf80731 SM |
5924 | /* Get a list of matching fonts on frame F, considering FAMILY |
5925 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
5926 | |
5927 | FAMILY is the font family whose alternatives are considered. | |
5928 | ||
5929 | REGISTRY, if a string, specifies a font registry and encoding to | |
5930 | match. A value of nil means include fonts of any registry and | |
5931 | encoding. | |
5932 | ||
5933 | Return in *FONTS a pointer to a vector of font_name structures for | |
5934 | the fonts matched. Value is the number of fonts found. */ | |
5935 | ||
5936 | static int | |
5937 | try_alternative_families (f, family, registry, fonts) | |
5938 | struct frame *f; | |
5939 | Lisp_Object family, registry; | |
5940 | struct font_name **fonts; | |
5941 | { | |
5942 | Lisp_Object alter; | |
5943 | int nfonts = 0; | |
5944 | ||
3cf80731 SM |
5945 | nfonts = font_list (f, Qnil, family, registry, fonts); |
5946 | if (nfonts == 0) | |
4a529c42 | 5947 | { |
3cf80731 SM |
5948 | /* Try alternative font families. */ |
5949 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
5950 | if (CONSP (alter)) | |
5951 | { | |
5952 | for (alter = XCDR (alter); | |
5953 | CONSP (alter) && nfonts == 0; | |
5954 | alter = XCDR (alter)) | |
5955 | { | |
5956 | if (STRINGP (XCAR (alter))) | |
5957 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
5958 | } | |
5959 | } | |
5960 | ||
5961 | /* Try scalable fonts before giving up. */ | |
5962 | if (nfonts == 0 && NILP (Vscalable_fonts_allowed)) | |
4a529c42 | 5963 | { |
3cf80731 SM |
5964 | int count = BINDING_STACK_SIZE (); |
5965 | specbind (Qscalable_fonts_allowed, Qt); | |
5966 | nfonts = try_alternative_families (f, family, registry, fonts); | |
5967 | unbind_to (count, Qnil); | |
4a529c42 GM |
5968 | } |
5969 | } | |
4a529c42 GM |
5970 | return nfonts; |
5971 | } | |
5972 | ||
5973 | ||
702a1e8e GM |
5974 | /* Get a list of matching fonts on frame F. |
5975 | ||
3cf80731 SM |
5976 | FAMILY, if a string, specifies a font family derived from the fontset. |
5977 | It is only used if the face does not specify any family in ATTRS or | |
5978 | if we cannot find any font of the face's family. | |
702a1e8e GM |
5979 | |
5980 | REGISTRY, if a string, specifies a font registry and encoding to | |
5981 | match. A value of nil means include fonts of any registry and | |
5982 | encoding. | |
5983 | ||
5984 | Return in *FONTS a pointer to a vector of font_name structures for | |
5985 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
5986 | |
5987 | static int | |
702a1e8e | 5988 | try_font_list (f, attrs, family, registry, fonts) |
82641697 GM |
5989 | struct frame *f; |
5990 | Lisp_Object *attrs; | |
702a1e8e | 5991 | Lisp_Object family, registry; |
82641697 GM |
5992 | struct font_name **fonts; |
5993 | { | |
4a529c42 | 5994 | int nfonts = 0; |
3cf80731 | 5995 | Lisp_Object face_family = attrs[LFACE_FAMILY_INDEX]; |
82641697 | 5996 | |
3cf80731 SM |
5997 | if (STRINGP (face_family)) |
5998 | nfonts = try_alternative_families (f, face_family, registry, fonts); | |
5999 | ||
6000 | if (nfonts == 0 && !NILP (family)) | |
6001 | nfonts = try_alternative_families (f, family, registry, fonts); | |
178c5d9c | 6002 | |
3cf80731 | 6003 | /* Try font family of the default face or "fixed". */ |
4a529c42 | 6004 | if (nfonts == 0) |
82641697 | 6005 | { |
3cf80731 SM |
6006 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6007 | if (default_face) | |
6008 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
6009 | else | |
6010 | family = build_string ("fixed"); | |
4a529c42 | 6011 | nfonts = font_list (f, Qnil, family, registry, fonts); |
82641697 | 6012 | } |
3cf80731 SM |
6013 | |
6014 | /* Try any family with the given registry. */ | |
6015 | if (nfonts == 0) | |
6016 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); | |
82641697 GM |
6017 | |
6018 | return nfonts; | |
6019 | } | |
6020 | ||
82641697 | 6021 | |
39506348 KH |
6022 | /* Return the fontset id of the base fontset name or alias name given |
6023 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
6024 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
6025 | |
6026 | static int | |
39506348 | 6027 | face_fontset (attrs) |
82641697 GM |
6028 | Lisp_Object *attrs; |
6029 | { | |
39506348 | 6030 | Lisp_Object name; |
178c5d9c | 6031 | |
39506348 KH |
6032 | name = attrs[LFACE_FONT_INDEX]; |
6033 | if (!STRINGP (name)) | |
6034 | return -1; | |
6035 | return fs_query_fontset (name, 0); | |
82641697 GM |
6036 | } |
6037 | ||
6038 | ||
39506348 KH |
6039 | /* Choose a name of font to use on frame F to display character C with |
6040 | Lisp face attributes specified by ATTRS. The font name is | |
6041 | determined by the font-related attributes in ATTRS and the name | |
6042 | pattern for C in FONTSET. Value is the font name which is | |
6043 | allocated from the heap and must be freed by the caller, or NULL if | |
6044 | we can get no information about the font name of C. It is assured | |
6045 | that we always get some information for a single byte | |
6046 | character. */ | |
82641697 GM |
6047 | |
6048 | static char * | |
39506348 | 6049 | choose_face_font (f, attrs, fontset, c) |
82641697 GM |
6050 | struct frame *f; |
6051 | Lisp_Object *attrs; | |
39506348 | 6052 | int fontset, c; |
82641697 | 6053 | { |
39506348 | 6054 | Lisp_Object pattern; |
82641697 | 6055 | char *font_name = NULL; |
82641697 | 6056 | struct font_name *fonts; |
2e6621ca | 6057 | int nfonts, width_ratio; |
178c5d9c | 6058 | |
39506348 KH |
6059 | /* Get (foundry and) family name and registry (and encoding) name of |
6060 | a font for C. */ | |
6061 | pattern = fontset_font_pattern (f, fontset, c); | |
6062 | if (NILP (pattern)) | |
6063 | { | |
6064 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
6065 | return NULL; | |
6066 | } | |
4a529c42 | 6067 | |
39506348 KH |
6068 | /* If what we got is a name pattern, return it. */ |
6069 | if (STRINGP (pattern)) | |
6070 | return xstrdup (XSTRING (pattern)->data); | |
82641697 | 6071 | |
178c5d9c | 6072 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 6073 | best match for the specified face attributes from it. */ |
702a1e8e | 6074 | nfonts = try_font_list (f, attrs, XCAR (pattern), XCDR (pattern), &fonts); |
2e6621ca GM |
6075 | width_ratio = (SINGLE_BYTE_CHAR_P (c) |
6076 | ? 1 | |
6077 | : CHARSET_WIDTH (CHAR_CHARSET (c))); | |
6078 | font_name = best_matching_font (f, attrs, fonts, nfonts, width_ratio); | |
82641697 GM |
6079 | return font_name; |
6080 | } | |
6081 | ||
c3cee013 | 6082 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6083 | |
6084 | ||
6085 | \f | |
6086 | /*********************************************************************** | |
6087 | Face Realization | |
6088 | ***********************************************************************/ | |
6089 | ||
6090 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
6091 | of F don't contain enough information needed to realize the default | |
6092 | face. */ | |
6093 | ||
6094 | static int | |
6095 | realize_basic_faces (f) | |
6096 | struct frame *f; | |
6097 | { | |
6098 | int success_p = 0; | |
eeffb293 | 6099 | int count = BINDING_STACK_SIZE (); |
17e8204b | 6100 | |
04386463 GM |
6101 | /* Block input here so that we won't be surprised by an X expose |
6102 | event, for instance, without having the faces set up. */ | |
17e8204b | 6103 | BLOCK_INPUT; |
eeffb293 | 6104 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 6105 | |
82641697 GM |
6106 | if (realize_default_face (f)) |
6107 | { | |
92610620 | 6108 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 6109 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 6110 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 6111 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
6112 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
6113 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
6114 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
6115 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 6116 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
563f68f1 | 6117 | |
b5de343d | 6118 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 6119 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 6120 | { |
ceeda019 | 6121 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 6122 | #ifdef USE_X_TOOLKIT |
bce72079 | 6123 | x_update_menu_appearance (f); |
a03ad468 | 6124 | #endif |
563f68f1 GM |
6125 | } |
6126 | ||
82641697 GM |
6127 | success_p = 1; |
6128 | } | |
6129 | ||
eeffb293 | 6130 | unbind_to (count, Qnil); |
17e8204b | 6131 | UNBLOCK_INPUT; |
82641697 GM |
6132 | return success_p; |
6133 | } | |
6134 | ||
6135 | ||
6136 | /* Realize the default face on frame F. If the face is not fully | |
6137 | specified, make it fully-specified. Attributes of the default face | |
6138 | that are not explicitly specified are taken from frame parameters. */ | |
6139 | ||
6140 | static int | |
6141 | realize_default_face (f) | |
6142 | struct frame *f; | |
6143 | { | |
6144 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6145 | Lisp_Object lface; | |
6146 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6147 | Lisp_Object frame_font; |
6148 | struct face *face; | |
82641697 GM |
6149 | |
6150 | /* If the `default' face is not yet known, create it. */ | |
6151 | lface = lface_from_face_name (f, Qdefault, 0); | |
6152 | if (NILP (lface)) | |
6153 | { | |
6154 | Lisp_Object frame; | |
6155 | XSETFRAME (frame, f); | |
6156 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
6157 | } | |
6158 | ||
c3cee013 JR |
6159 | #ifdef HAVE_WINDOW_SYSTEM |
6160 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
6161 | { |
6162 | /* Set frame_font to the value of the `font' frame parameter. */ | |
6163 | frame_font = Fassq (Qfont, f->param_alist); | |
6164 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
6165 | frame_font = XCDR (frame_font); | |
8cdeb3f2 | 6166 | set_lface_from_font_name (f, lface, frame_font, 1, 1); |
82641697 | 6167 | } |
c3cee013 | 6168 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6169 | |
44747bd0 | 6170 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
6171 | { |
6172 | LFACE_FAMILY (lface) = build_string ("default"); | |
6173 | LFACE_SWIDTH (lface) = Qnormal; | |
6174 | LFACE_HEIGHT (lface) = make_number (1); | |
6175 | LFACE_WEIGHT (lface) = Qnormal; | |
6176 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 6177 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 6178 | } |
178c5d9c | 6179 | |
82641697 GM |
6180 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
6181 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 6182 | |
82641697 GM |
6183 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
6184 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 6185 | |
82641697 GM |
6186 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
6187 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 6188 | |
82641697 GM |
6189 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
6190 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 6191 | |
82641697 GM |
6192 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
6193 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 6194 | |
82641697 GM |
6195 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
6196 | { | |
6197 | /* This function is called so early that colors are not yet | |
6198 | set in the frame parameter list. */ | |
6199 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 6200 | |
82641697 GM |
6201 | if (CONSP (color) && STRINGP (XCDR (color))) |
6202 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 6203 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6204 | return 0; |
e689ec06 | 6205 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6206 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 6207 | else |
82641697 GM |
6208 | abort (); |
6209 | } | |
178c5d9c | 6210 | |
82641697 GM |
6211 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
6212 | { | |
6213 | /* This function is called so early that colors are not yet | |
6214 | set in the frame parameter list. */ | |
6215 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
6216 | if (CONSP (color) && STRINGP (XCDR (color))) | |
6217 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 6218 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6219 | return 0; |
e689ec06 | 6220 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6221 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 6222 | else |
82641697 GM |
6223 | abort (); |
6224 | } | |
178c5d9c | 6225 | |
82641697 GM |
6226 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
6227 | LFACE_STIPPLE (lface) = Qnil; | |
6228 | ||
6229 | /* Realize the face; it must be fully-specified now. */ | |
6230 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
6231 | check_lface (lface); | |
6232 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 6233 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
6234 | return 1; |
6235 | } | |
6236 | ||
6237 | ||
6238 | /* Realize basic faces other than the default face in face cache C. | |
6239 | SYMBOL is the face name, ID is the face id the realized face must | |
6240 | have. The default face must have been realized already. */ | |
6241 | ||
6242 | static void | |
6243 | realize_named_face (f, symbol, id) | |
6244 | struct frame *f; | |
6245 | Lisp_Object symbol; | |
6246 | int id; | |
6247 | { | |
6248 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6249 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
6250 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6251 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6252 | struct face *new_face; | |
6253 | ||
6254 | /* The default face must exist and be fully specified. */ | |
6255 | get_lface_attributes (f, Qdefault, attrs, 1); | |
6256 | check_lface_attrs (attrs); | |
6257 | xassert (lface_fully_specified_p (attrs)); | |
6258 | ||
6259 | /* If SYMBOL isn't know as a face, create it. */ | |
6260 | if (NILP (lface)) | |
6261 | { | |
6262 | Lisp_Object frame; | |
6263 | XSETFRAME (frame, f); | |
6264 | lface = Finternal_make_lisp_face (symbol, frame); | |
6265 | } | |
6266 | ||
6267 | /* Merge SYMBOL's face with the default face. */ | |
6268 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
2c20458f | 6269 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
82641697 GM |
6270 | |
6271 | /* Realize the face. */ | |
39506348 | 6272 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
6273 | } |
6274 | ||
6275 | ||
6276 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6277 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
6278 | BASE_FACE is a face that has the same attributes. Otherwise, |
6279 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
6280 | ID of face to remove before caching the new face. Value is a | |
6281 | pointer to the newly created realized face. */ | |
82641697 GM |
6282 | |
6283 | static struct face * | |
39506348 KH |
6284 | realize_face (cache, attrs, c, base_face, former_face_id) |
6285 | struct face_cache *cache; | |
82641697 | 6286 | Lisp_Object *attrs; |
39506348 KH |
6287 | int c; |
6288 | struct face *base_face; | |
6289 | int former_face_id; | |
82641697 GM |
6290 | { |
6291 | struct face *face; | |
178c5d9c | 6292 | |
82641697 | 6293 | /* LFACE must be fully specified. */ |
39506348 | 6294 | xassert (cache != NULL); |
82641697 GM |
6295 | check_lface_attrs (attrs); |
6296 | ||
39506348 KH |
6297 | if (former_face_id >= 0 && cache->used > former_face_id) |
6298 | { | |
6299 | /* Remove the former face. */ | |
6300 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
6301 | uncache_face (cache, former_face); | |
6302 | free_realized_face (cache->f, former_face); | |
6303 | } | |
6304 | ||
6305 | if (FRAME_WINDOW_P (cache->f)) | |
6306 | face = realize_x_face (cache, attrs, c, base_face); | |
e689ec06 | 6307 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
39506348 | 6308 | face = realize_tty_face (cache, attrs, c); |
82641697 GM |
6309 | else |
6310 | abort (); | |
6311 | ||
39506348 KH |
6312 | /* Insert the new face. */ |
6313 | cache_face (cache, face, lface_hash (attrs)); | |
6314 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 6315 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
6316 | load_face_font (cache->f, face, c); |
6317 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
6318 | return face; |
6319 | } | |
6320 | ||
6321 | ||
6322 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6323 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
6324 | a multibyte character, BASE_FACE is a face that has the same |
6325 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
6326 | doesn't share font with the default face, a fontname is allocated | |
6327 | from the heap and set in `font_name' of the new face, but it is not | |
6328 | yet loaded here. Value is a pointer to the newly created realized | |
6329 | face. */ | |
82641697 GM |
6330 | |
6331 | static struct face * | |
39506348 KH |
6332 | realize_x_face (cache, attrs, c, base_face) |
6333 | struct face_cache *cache; | |
82641697 | 6334 | Lisp_Object *attrs; |
39506348 KH |
6335 | int c; |
6336 | struct face *base_face; | |
82641697 | 6337 | { |
c3cee013 | 6338 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6339 | struct face *face, *default_face; |
78d2079c | 6340 | struct frame *f; |
82641697 | 6341 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 6342 | |
39506348 KH |
6343 | xassert (FRAME_WINDOW_P (cache->f)); |
6344 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 6345 | || base_face); |
82641697 GM |
6346 | |
6347 | /* Allocate a new realized face. */ | |
39506348 KH |
6348 | face = make_realized_face (attrs); |
6349 | ||
6350 | f = cache->f; | |
6351 | ||
6352 | /* If C is a multibyte character, we share all face attirbutes with | |
6353 | BASE_FACE including the realized fontset. But, we must load a | |
6354 | different font. */ | |
6355 | if (!SINGLE_BYTE_CHAR_P (c)) | |
6356 | { | |
6357 | bcopy (base_face, face, sizeof *face); | |
6358 | face->gc = 0; | |
e911049b GM |
6359 | |
6360 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
28a072fe | 6361 | face->colors_copied_bitwise_p = 1; |
178c5d9c | 6362 | |
e911049b GM |
6363 | /* to force realize_face to load font */ |
6364 | face->font = NULL; | |
39506348 KH |
6365 | return face; |
6366 | } | |
6367 | ||
6368 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
6369 | |
6370 | /* Determine the font to use. Most of the time, the font will be | |
6371 | the same as the font of the default face, so try that first. */ | |
6372 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6373 | if (default_face | |
39506348 | 6374 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
6375 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
6376 | { | |
6377 | face->font = default_face->font; | |
6378 | face->fontset = default_face->fontset; | |
6379 | face->font_info_id = default_face->font_info_id; | |
6380 | face->font_name = default_face->font_name; | |
39506348 | 6381 | face->ascii_face = face; |
82641697 | 6382 | |
39506348 KH |
6383 | /* But, as we can't share the fontset, make a new realized |
6384 | fontset that has the same base fontset as of the default | |
6385 | face. */ | |
6386 | face->fontset | |
6387 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
6388 | } |
6389 | else | |
6390 | { | |
39506348 | 6391 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
6392 | the base of a new realized fontset. Otherwise, use the same |
6393 | base fontset as of the default face. The base determines | |
6394 | registry and encoding of a font. It may also determine | |
6395 | foundry and family. The other fields of font name pattern | |
6396 | are constructed from ATTRS. */ | |
6397 | int fontset = face_fontset (attrs); | |
6398 | ||
178c5d9c | 6399 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
6400 | fontset = default_face->fontset; |
6401 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 6402 | face->font = NULL; /* to force realize_face to load font */ |
1a578e9b AC |
6403 | |
6404 | #ifdef macintosh | |
6405 | /* Load the font if it is specified in ATTRS. This fixes | |
6406 | changing frame font on the Mac. */ | |
6407 | if (STRINGP (attrs[LFACE_FONT_INDEX])) | |
6408 | { | |
6409 | struct font_info *font_info = | |
6410 | FS_LOAD_FONT (f, 0, XSTRING (attrs[LFACE_FONT_INDEX])->data, -1); | |
6411 | if (font_info) | |
6412 | face->font = font_info->font; | |
6413 | } | |
6414 | #endif | |
82641697 GM |
6415 | } |
6416 | ||
6417 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 6418 | |
82641697 | 6419 | load_face_colors (f, face, attrs); |
660ed669 | 6420 | |
82641697 GM |
6421 | /* Set up box. */ |
6422 | box = attrs[LFACE_BOX_INDEX]; | |
6423 | if (STRINGP (box)) | |
cb637678 | 6424 | { |
82641697 GM |
6425 | /* A simple box of line width 1 drawn in color given by |
6426 | the string. */ | |
6427 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
6428 | LFACE_BOX_INDEX); | |
6429 | face->box = FACE_SIMPLE_BOX; | |
6430 | face->box_line_width = 1; | |
cb637678 | 6431 | } |
82641697 | 6432 | else if (INTEGERP (box)) |
42120bc7 | 6433 | { |
82641697 GM |
6434 | /* Simple box of specified line width in foreground color of the |
6435 | face. */ | |
89624b8b | 6436 | xassert (XINT (box) != 0); |
82641697 | 6437 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 6438 | face->box_line_width = XINT (box); |
82641697 GM |
6439 | face->box_color = face->foreground; |
6440 | face->box_color_defaulted_p = 1; | |
6441 | } | |
6442 | else if (CONSP (box)) | |
6443 | { | |
6444 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
6445 | being one of `raised' or `sunken'. */ | |
6446 | face->box = FACE_SIMPLE_BOX; | |
6447 | face->box_color = face->foreground; | |
6448 | face->box_color_defaulted_p = 1; | |
6449 | face->box_line_width = 1; | |
6450 | ||
6451 | while (CONSP (box)) | |
42120bc7 | 6452 | { |
82641697 GM |
6453 | Lisp_Object keyword, value; |
6454 | ||
6455 | keyword = XCAR (box); | |
6456 | box = XCDR (box); | |
6457 | ||
6458 | if (!CONSP (box)) | |
6459 | break; | |
6460 | value = XCAR (box); | |
6461 | box = XCDR (box); | |
6462 | ||
6463 | if (EQ (keyword, QCline_width)) | |
6464 | { | |
89624b8b KH |
6465 | if (INTEGERP (value) && XINT (value) != 0) |
6466 | face->box_line_width = XINT (value); | |
82641697 GM |
6467 | } |
6468 | else if (EQ (keyword, QCcolor)) | |
6469 | { | |
6470 | if (STRINGP (value)) | |
6471 | { | |
6472 | face->box_color = load_color (f, face, value, | |
6473 | LFACE_BOX_INDEX); | |
6474 | face->use_box_color_for_shadows_p = 1; | |
6475 | } | |
6476 | } | |
6477 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 6478 | { |
82641697 GM |
6479 | if (EQ (value, Qreleased_button)) |
6480 | face->box = FACE_RAISED_BOX; | |
6481 | else if (EQ (value, Qpressed_button)) | |
6482 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 6483 | } |
42120bc7 RS |
6484 | } |
6485 | } | |
195f798e | 6486 | |
82641697 | 6487 | /* Text underline, overline, strike-through. */ |
178c5d9c | 6488 | |
82641697 | 6489 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 6490 | { |
82641697 GM |
6491 | /* Use default color (same as foreground color). */ |
6492 | face->underline_p = 1; | |
6493 | face->underline_defaulted_p = 1; | |
6494 | face->underline_color = 0; | |
6495 | } | |
6496 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 6497 | { |
82641697 GM |
6498 | /* Use specified color. */ |
6499 | face->underline_p = 1; | |
6500 | face->underline_defaulted_p = 0; | |
6501 | face->underline_color | |
6502 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
6503 | LFACE_UNDERLINE_INDEX); | |
195f798e | 6504 | } |
82641697 | 6505 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 6506 | { |
82641697 GM |
6507 | face->underline_p = 0; |
6508 | face->underline_defaulted_p = 0; | |
6509 | face->underline_color = 0; | |
7b00de84 JB |
6510 | } |
6511 | ||
82641697 GM |
6512 | overline = attrs[LFACE_OVERLINE_INDEX]; |
6513 | if (STRINGP (overline)) | |
cb637678 | 6514 | { |
82641697 GM |
6515 | face->overline_color |
6516 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6517 | LFACE_OVERLINE_INDEX); | |
6518 | face->overline_p = 1; | |
cb637678 | 6519 | } |
82641697 | 6520 | else if (EQ (overline, Qt)) |
cb637678 | 6521 | { |
82641697 GM |
6522 | face->overline_color = face->foreground; |
6523 | face->overline_color_defaulted_p = 1; | |
6524 | face->overline_p = 1; | |
cb637678 JB |
6525 | } |
6526 | ||
82641697 GM |
6527 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6528 | if (STRINGP (strike_through)) | |
6529 | { | |
6530 | face->strike_through_color | |
6531 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6532 | LFACE_STRIKE_THROUGH_INDEX); | |
6533 | face->strike_through_p = 1; | |
6534 | } | |
6535 | else if (EQ (strike_through, Qt)) | |
6536 | { | |
6537 | face->strike_through_color = face->foreground; | |
6538 | face->strike_through_color_defaulted_p = 1; | |
6539 | face->strike_through_p = 1; | |
6540 | } | |
867dd159 | 6541 | |
82641697 GM |
6542 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6543 | if (!NILP (stipple)) | |
6544 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6545 | |
39506348 | 6546 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
82641697 | 6547 | return face; |
c3cee013 | 6548 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 JB |
6549 | } |
6550 | ||
729425b1 | 6551 | |
ae4b4ba5 GM |
6552 | /* Map a specified color of face FACE on frame F to a tty color index. |
6553 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
6554 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
6555 | default foreground/background colors. */ | |
6556 | ||
6557 | static void | |
6558 | map_tty_color (f, face, idx, defaulted) | |
6559 | struct frame *f; | |
6560 | struct face *face; | |
6561 | enum lface_attribute_index idx; | |
6562 | int *defaulted; | |
6563 | { | |
6564 | Lisp_Object frame, color, def; | |
6565 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
6566 | unsigned long default_pixel, default_other_pixel, pixel; | |
6567 | ||
6568 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
6569 | ||
6570 | if (foreground_p) | |
6571 | { | |
6572 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6573 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6574 | } | |
6575 | else | |
6576 | { | |
6577 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6578 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6579 | } | |
6580 | ||
6581 | XSETFRAME (frame, f); | |
6582 | color = face->lface[idx]; | |
6583 | ||
6584 | if (STRINGP (color) | |
6585 | && XSTRING (color)->size | |
6586 | && CONSP (Vtty_defined_color_alist) | |
6587 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
6588 | CONSP (def))) | |
6589 | { | |
6590 | /* Associations in tty-defined-color-alist are of the form | |
6591 | (NAME INDEX R G B). We need the INDEX part. */ | |
6592 | pixel = XINT (XCAR (XCDR (def))); | |
6593 | } | |
6594 | ||
6595 | if (pixel == default_pixel && STRINGP (color)) | |
6596 | { | |
6597 | pixel = load_color (f, face, color, idx); | |
6598 | ||
6599 | #if defined (MSDOS) || defined (WINDOWSNT) | |
6600 | /* If the foreground of the default face is the default color, | |
6601 | use the foreground color defined by the frame. */ | |
6602 | #ifdef MSDOS | |
6603 | if (FRAME_MSDOS_P (f)) | |
6604 | { | |
6605 | #endif /* MSDOS */ | |
6606 | if (pixel == default_pixel | |
6607 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
6608 | { | |
6609 | if (foreground_p) | |
6610 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6611 | else | |
6612 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6613 | face->lface[idx] = tty_color_name (f, pixel); | |
6614 | *defaulted = 1; | |
6615 | } | |
6616 | else if (pixel == default_other_pixel) | |
6617 | { | |
6618 | if (foreground_p) | |
6619 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6620 | else | |
6621 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6622 | face->lface[idx] = tty_color_name (f, pixel); | |
6623 | *defaulted = 1; | |
6624 | } | |
6625 | #ifdef MSDOS | |
6626 | } | |
6627 | #endif | |
6628 | #endif /* MSDOS or WINDOWSNT */ | |
6629 | } | |
6630 | ||
6631 | if (foreground_p) | |
6632 | face->foreground = pixel; | |
6633 | else | |
6634 | face->background = pixel; | |
6635 | } | |
6636 | ||
6637 | ||
82641697 | 6638 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
6639 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
6640 | pointer to the newly created realized face. */ | |
a8517066 | 6641 | |
82641697 | 6642 | static struct face * |
39506348 KH |
6643 | realize_tty_face (cache, attrs, c) |
6644 | struct face_cache *cache; | |
82641697 | 6645 | Lisp_Object *attrs; |
39506348 | 6646 | int c; |
82641697 GM |
6647 | { |
6648 | struct face *face; | |
6649 | int weight, slant; | |
2d764c78 | 6650 | int face_colors_defaulted = 0; |
ae4b4ba5 | 6651 | struct frame *f = cache->f; |
729425b1 | 6652 | |
82641697 | 6653 | /* Frame must be a termcap frame. */ |
e689ec06 | 6654 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 6655 | |
82641697 | 6656 | /* Allocate a new realized face. */ |
39506348 | 6657 | face = make_realized_face (attrs); |
e689ec06 | 6658 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 6659 | |
178c5d9c | 6660 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
6661 | dimmed text because we want italic text to appear differently |
6662 | and because dimmed text is probably used infrequently. */ | |
6663 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6664 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6665 | ||
6666 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6667 | face->tty_bold_p = 1; | |
6668 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6669 | face->tty_dim_p = 1; | |
6670 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6671 | face->tty_underline_p = 1; | |
6672 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6673 | face->tty_reverse_p = 1; | |
6674 | ||
6675 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
6676 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
6677 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
6678 | ||
2d764c78 EZ |
6679 | /* Swap colors if face is inverse-video. If the colors are taken |
6680 | from the frame colors, they are already inverted, since the | |
6681 | frame-creation function calls x-handle-reverse-video. */ | |
6682 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6683 | { |
6684 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
6685 | face->foreground = face->background; |
6686 | face->background = tem; | |
6687 | } | |
44747bd0 | 6688 | |
a4a76b61 GM |
6689 | if (tty_suppress_bold_inverse_default_colors_p |
6690 | && face->tty_bold_p | |
6691 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
6692 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
6693 | face->tty_bold_p = 0; | |
6694 | ||
82641697 | 6695 | return face; |
729425b1 | 6696 | } |
867dd159 | 6697 | |
82641697 | 6698 | |
a4a76b61 GM |
6699 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
6700 | Ftty_suppress_bold_inverse_default_colors, | |
6701 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 6702 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
6703 | SUPPRESS non-nil means suppress it. |
6704 | This affects bold faces on TTYs whose foreground is the default background | |
6705 | color of the display and whose background is the default foreground color. | |
6706 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
6707 | is non-nil. */) |
6708 | (suppress) | |
a4a76b61 GM |
6709 | Lisp_Object suppress; |
6710 | { | |
6711 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
6712 | ++face_change_count; | |
6713 | return suppress; | |
6714 | } | |
6715 | ||
6716 | ||
82641697 GM |
6717 | \f |
6718 | /*********************************************************************** | |
6719 | Computing Faces | |
6720 | ***********************************************************************/ | |
6721 | ||
6722 | /* Return the ID of the face to use to display character CH with face | |
6723 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6724 | |
6725 | int | |
82641697 | 6726 | compute_char_face (f, ch, prop) |
2e16580f | 6727 | struct frame *f; |
82641697 GM |
6728 | int ch; |
6729 | Lisp_Object prop; | |
2e16580f | 6730 | { |
82641697 | 6731 | int face_id; |
39506348 KH |
6732 | |
6733 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 6734 | ch = 0; |
178c5d9c | 6735 | |
82641697 | 6736 | if (NILP (prop)) |
39506348 KH |
6737 | { |
6738 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6739 | face_id = FACE_FOR_CHAR (f, face, ch); | |
6740 | } | |
82641697 | 6741 | else |
2e16580f | 6742 | { |
82641697 GM |
6743 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6744 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6745 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6746 | merge_face_vector_with_property (f, attrs, prop); | |
39506348 | 6747 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
6748 | } |
6749 | ||
82641697 | 6750 | return face_id; |
2e16580f | 6751 | } |
bc0db68d | 6752 | |
82641697 GM |
6753 | /* Return the face ID associated with buffer position POS for |
6754 | displaying ASCII characters. Return in *ENDPTR the position at | |
6755 | which a different face is needed, as far as text properties and | |
6756 | overlays are concerned. W is a window displaying current_buffer. | |
6757 | ||
6758 | REGION_BEG, REGION_END delimit the region, so it can be | |
6759 | highlighted. | |
6f134486 | 6760 | |
82641697 GM |
6761 | LIMIT is a position not to scan beyond. That is to limit the time |
6762 | this function can take. | |
6763 | ||
6764 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6765 | ||
39506348 | 6766 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 6767 | |
cb637678 | 6768 | int |
82641697 GM |
6769 | face_at_buffer_position (w, pos, region_beg, region_end, |
6770 | endptr, limit, mouse) | |
f211082d | 6771 | struct window *w; |
7b7739b1 | 6772 | int pos; |
bc0db68d | 6773 | int region_beg, region_end; |
7b7739b1 | 6774 | int *endptr; |
b349f4fb | 6775 | int limit; |
6f134486 | 6776 | int mouse; |
7b7739b1 | 6777 | { |
82641697 GM |
6778 | struct frame *f = XFRAME (w->frame); |
6779 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6780 | Lisp_Object prop, position; |
82641697 | 6781 | int i, noverlays; |
7b7739b1 | 6782 | Lisp_Object *overlay_vec; |
f211082d | 6783 | Lisp_Object frame; |
f6b98e0b | 6784 | int endpos; |
82641697 GM |
6785 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6786 | Lisp_Object limit1, end; | |
6787 | struct face *default_face; | |
f6b98e0b JB |
6788 | |
6789 | /* W must display the current buffer. We could write this function | |
6790 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6791 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6792 | |
ac22a6c4 | 6793 | XSETFRAME (frame, f); |
82641697 | 6794 | XSETFASTINT (position, pos); |
7b7739b1 | 6795 | |
f6b98e0b | 6796 | endpos = ZV; |
bc0db68d RS |
6797 | if (pos < region_beg && region_beg < endpos) |
6798 | endpos = region_beg; | |
f6b98e0b | 6799 | |
82641697 GM |
6800 | /* Get the `face' or `mouse_face' text property at POS, and |
6801 | determine the next position at which the property changes. */ | |
6f134486 | 6802 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6803 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6804 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6805 | if (INTEGERP (end)) | |
6806 | endpos = XINT (end); | |
6f134486 | 6807 | |
82641697 | 6808 | /* Look at properties from overlays. */ |
b6d40e46 | 6809 | { |
f6b98e0b | 6810 | int next_overlay; |
9516fe94 RS |
6811 | int len; |
6812 | ||
6813 | /* First try with room for 40 overlays. */ | |
6814 | len = 40; | |
6815 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6816 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6817 | &next_overlay, NULL, 0); |
9516fe94 | 6818 | |
82641697 GM |
6819 | /* If there are more than 40, make enough space for all, and try |
6820 | again. */ | |
9516fe94 RS |
6821 | if (noverlays > len) |
6822 | { | |
6823 | len = noverlays; | |
6824 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6825 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6826 | &next_overlay, NULL, 0); |
9516fe94 | 6827 | } |
b6d40e46 | 6828 | |
f6b98e0b JB |
6829 | if (next_overlay < endpos) |
6830 | endpos = next_overlay; | |
b6d40e46 JB |
6831 | } |
6832 | ||
6833 | *endptr = endpos; | |
7b7739b1 | 6834 | |
82641697 | 6835 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 6836 | |
82641697 GM |
6837 | /* Optimize common cases where we can use the default face. */ |
6838 | if (noverlays == 0 | |
6839 | && NILP (prop) | |
39506348 | 6840 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
6841 | return DEFAULT_FACE_ID; |
6842 | ||
6843 | /* Begin with attributes from the default face. */ | |
6844 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6845 | ||
6846 | /* Merge in attributes specified via text properties. */ | |
6847 | if (!NILP (prop)) | |
6848 | merge_face_vector_with_property (f, attrs, prop); | |
6849 | ||
6850 | /* Now merge the overlay data. */ | |
18195655 | 6851 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6852 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6853 | { |
18195655 RS |
6854 | Lisp_Object oend; |
6855 | int oendpos; | |
6856 | ||
6857 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6858 | if (!NILP (prop)) |
6859 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6860 | |
6861 | oend = OVERLAY_END (overlay_vec[i]); | |
6862 | oendpos = OVERLAY_POSITION (oend); | |
6863 | if (oendpos < endpos) | |
6864 | endpos = oendpos; | |
6865 | } | |
6866 | ||
82641697 | 6867 | /* If in the region, merge in the region face. */ |
18195655 RS |
6868 | if (pos >= region_beg && pos < region_end) |
6869 | { | |
82641697 | 6870 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6871 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
178c5d9c | 6872 | |
18195655 RS |
6873 | if (region_end < endpos) |
6874 | endpos = region_end; | |
18195655 RS |
6875 | } |
6876 | ||
6877 | *endptr = endpos; | |
6878 | ||
82641697 | 6879 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6880 | or realize a new one for ASCII characters. */ |
6881 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
6882 | } |
6883 | ||
60573a90 | 6884 | |
82641697 | 6885 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 6886 | window W, for ASCII characters. |
7b7739b1 | 6887 | |
82641697 GM |
6888 | If STRING is an overlay string, it comes from position BUFPOS in |
6889 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6890 | not an overlay string. W must display the current buffer. | |
6891 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
6892 | region; both are -1 if no region is visible. |
6893 | ||
6894 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
6895 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 6896 | |
48a4ca99 GM |
6897 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
6898 | ||
82641697 GM |
6899 | Set *ENDPTR to the next position where to check for faces in |
6900 | STRING; -1 if the face is constant from POS to the end of the | |
6901 | string. | |
18195655 | 6902 | |
82641697 | 6903 | Value is the id of the face to use. The face returned is suitable |
39506348 | 6904 | for displaying ASCII characters. */ |
fffc2367 | 6905 | |
82641697 GM |
6906 | int |
6907 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 6908 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
6909 | struct window *w; |
6910 | Lisp_Object string; | |
6911 | int pos, bufpos; | |
6912 | int region_beg, region_end; | |
6913 | int *endptr; | |
6914 | enum face_id base_face_id; | |
48a4ca99 | 6915 | int mouse_p; |
660ed669 | 6916 | { |
82641697 GM |
6917 | Lisp_Object prop, position, end, limit; |
6918 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6919 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6920 | struct face *base_face; | |
6921 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 6922 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
6923 | |
6924 | /* Get the value of the face property at the current position within | |
6925 | STRING. Value is nil if there is no face property. */ | |
6926 | XSETFASTINT (position, pos); | |
48a4ca99 | 6927 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
6928 | |
6929 | /* Get the next position at which to check for faces. Value of end | |
6930 | is nil if face is constant all the way to the end of the string. | |
6931 | Otherwise it is a string position where to check faces next. | |
6932 | Limit is the maximum position up to which to check for property | |
6933 | changes in Fnext_single_property_change. Strings are usually | |
6934 | short, so set the limit to the end of the string. */ | |
6935 | XSETFASTINT (limit, XSTRING (string)->size); | |
48a4ca99 | 6936 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
6937 | if (INTEGERP (end)) |
6938 | *endptr = XFASTINT (end); | |
6939 | else | |
6940 | *endptr = -1; | |
6941 | ||
6942 | base_face = FACE_FROM_ID (f, base_face_id); | |
6943 | xassert (base_face); | |
6944 | ||
6945 | /* Optimize the default case that there is no face property and we | |
6946 | are not in the region. */ | |
6947 | if (NILP (prop) | |
6948 | && (base_face_id != DEFAULT_FACE_ID | |
6949 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6950 | that the region doesn't have to be taken into account. */ | |
6951 | || bufpos <= 0 | |
6952 | || bufpos < region_beg | |
6953 | || bufpos >= region_end) | |
6954 | && (multibyte_p | |
6955 | /* We can't realize faces for different charsets differently | |
6956 | if we don't have fonts, so we can stop here if not working | |
6957 | on a window-system frame. */ | |
6958 | || !FRAME_WINDOW_P (f) | |
39506348 | 6959 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
6960 | return base_face->id; |
6961 | ||
6962 | /* Begin with attributes from the base face. */ | |
6963 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6964 | ||
6965 | /* Merge in attributes specified via text properties. */ | |
6966 | if (!NILP (prop)) | |
6967 | merge_face_vector_with_property (f, attrs, prop); | |
6968 | ||
6969 | /* If in the region, merge in the region face. */ | |
6970 | if (bufpos | |
6971 | && bufpos >= region_beg | |
6972 | && bufpos < region_end) | |
a8517066 | 6973 | { |
82641697 | 6974 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6975 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
a8517066 | 6976 | } |
660ed669 | 6977 | |
82641697 | 6978 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6979 | or realize a new one for ASCII characters. */ |
6980 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
6981 | } |
6982 | ||
6983 | ||
c115973b | 6984 | \f |
82641697 GM |
6985 | /*********************************************************************** |
6986 | Tests | |
6987 | ***********************************************************************/ | |
c115973b | 6988 | |
82641697 | 6989 | #if GLYPH_DEBUG |
c115973b | 6990 | |
82641697 | 6991 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6992 | |
82641697 GM |
6993 | static void |
6994 | dump_realized_face (face) | |
6995 | struct face *face; | |
6996 | { | |
6997 | fprintf (stderr, "ID: %d\n", face->id); | |
6998 | #ifdef HAVE_X_WINDOWS | |
6999 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
7000 | #endif | |
7001 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
7002 | face->foreground, | |
7003 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
7004 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
7005 | face->background, | |
7006 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
7007 | fprintf (stderr, "font_name: %s (%s)\n", | |
7008 | face->font_name, | |
7009 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
7010 | #ifdef HAVE_X_WINDOWS | |
7011 | fprintf (stderr, "font = %p\n", face->font); | |
7012 | #endif | |
7013 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
7014 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
7015 | fprintf (stderr, "underline: %d (%s)\n", | |
7016 | face->underline_p, | |
7017 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
7018 | fprintf (stderr, "hash: %d\n", face->hash); | |
7019 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
7020 | } |
7021 | ||
7022 | ||
7ee72033 MB |
7023 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
7024 | (n) | |
82641697 | 7025 | Lisp_Object n; |
c115973b | 7026 | { |
82641697 | 7027 | if (NILP (n)) |
c115973b | 7028 | { |
82641697 | 7029 | int i; |
178c5d9c | 7030 | |
82641697 GM |
7031 | fprintf (stderr, "font selection order: "); |
7032 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7033 | fprintf (stderr, "%d ", font_sort_order[i]); | |
7034 | fprintf (stderr, "\n"); | |
7035 | ||
7036 | fprintf (stderr, "alternative fonts: "); | |
7037 | debug_print (Vface_alternative_font_family_alist); | |
7038 | fprintf (stderr, "\n"); | |
178c5d9c | 7039 | |
c0617987 | 7040 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 7041 | Fdump_face (make_number (i)); |
c115973b JB |
7042 | } |
7043 | else | |
f5e278c7 | 7044 | { |
82641697 | 7045 | struct face *face; |
b7826503 | 7046 | CHECK_NUMBER (n); |
c0617987 | 7047 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
7048 | if (face == NULL) |
7049 | error ("Not a valid face"); | |
7050 | dump_realized_face (face); | |
f5e278c7 | 7051 | } |
178c5d9c | 7052 | |
c115973b JB |
7053 | return Qnil; |
7054 | } | |
b5c53576 | 7055 | |
b5c53576 | 7056 | |
82641697 | 7057 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
7058 | 0, 0, 0, doc: /* */) |
7059 | () | |
b5c53576 | 7060 | { |
82641697 GM |
7061 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
7062 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
7063 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
7064 | return Qnil; | |
b5c53576 RS |
7065 | } |
7066 | ||
82641697 GM |
7067 | #endif /* GLYPH_DEBUG != 0 */ |
7068 | ||
b5c53576 | 7069 | |
c115973b | 7070 | \f |
82641697 GM |
7071 | /*********************************************************************** |
7072 | Initialization | |
7073 | ***********************************************************************/ | |
cb637678 | 7074 | |
c115973b | 7075 | void |
f211082d | 7076 | syms_of_xfaces () |
c115973b | 7077 | { |
f211082d JB |
7078 | Qface = intern ("face"); |
7079 | staticpro (&Qface); | |
fef04523 GM |
7080 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
7081 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
7082 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
7083 | staticpro (&Qframe_update_face_colors); | |
178c5d9c | 7084 | |
82641697 GM |
7085 | /* Lisp face attribute keywords. */ |
7086 | QCfamily = intern (":family"); | |
7087 | staticpro (&QCfamily); | |
7088 | QCheight = intern (":height"); | |
7089 | staticpro (&QCheight); | |
7090 | QCweight = intern (":weight"); | |
7091 | staticpro (&QCweight); | |
7092 | QCslant = intern (":slant"); | |
7093 | staticpro (&QCslant); | |
7094 | QCunderline = intern (":underline"); | |
7095 | staticpro (&QCunderline); | |
7096 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 7097 | staticpro (&QCinverse_video); |
82641697 GM |
7098 | QCreverse_video = intern (":reverse-video"); |
7099 | staticpro (&QCreverse_video); | |
7100 | QCforeground = intern (":foreground"); | |
7101 | staticpro (&QCforeground); | |
7102 | QCbackground = intern (":background"); | |
7103 | staticpro (&QCbackground); | |
7104 | QCstipple = intern (":stipple");; | |
7105 | staticpro (&QCstipple); | |
7106 | QCwidth = intern (":width"); | |
7107 | staticpro (&QCwidth); | |
7108 | QCfont = intern (":font"); | |
7109 | staticpro (&QCfont); | |
7110 | QCbold = intern (":bold"); | |
7111 | staticpro (&QCbold); | |
7112 | QCitalic = intern (":italic"); | |
7113 | staticpro (&QCitalic); | |
7114 | QCoverline = intern (":overline"); | |
7115 | staticpro (&QCoverline); | |
7116 | QCstrike_through = intern (":strike-through"); | |
7117 | staticpro (&QCstrike_through); | |
7118 | QCbox = intern (":box"); | |
7119 | staticpro (&QCbox); | |
2c20458f MB |
7120 | QCinherit = intern (":inherit"); |
7121 | staticpro (&QCinherit); | |
82641697 GM |
7122 | |
7123 | /* Symbols used for Lisp face attribute values. */ | |
7124 | QCcolor = intern (":color"); | |
7125 | staticpro (&QCcolor); | |
7126 | QCline_width = intern (":line-width"); | |
7127 | staticpro (&QCline_width); | |
7128 | QCstyle = intern (":style"); | |
7129 | staticpro (&QCstyle); | |
7130 | Qreleased_button = intern ("released-button"); | |
7131 | staticpro (&Qreleased_button); | |
7132 | Qpressed_button = intern ("pressed-button"); | |
7133 | staticpro (&Qpressed_button); | |
7134 | Qnormal = intern ("normal"); | |
7135 | staticpro (&Qnormal); | |
7136 | Qultra_light = intern ("ultra-light"); | |
7137 | staticpro (&Qultra_light); | |
7138 | Qextra_light = intern ("extra-light"); | |
7139 | staticpro (&Qextra_light); | |
7140 | Qlight = intern ("light"); | |
7141 | staticpro (&Qlight); | |
7142 | Qsemi_light = intern ("semi-light"); | |
7143 | staticpro (&Qsemi_light); | |
7144 | Qsemi_bold = intern ("semi-bold"); | |
7145 | staticpro (&Qsemi_bold); | |
7146 | Qbold = intern ("bold"); | |
7147 | staticpro (&Qbold); | |
7148 | Qextra_bold = intern ("extra-bold"); | |
7149 | staticpro (&Qextra_bold); | |
7150 | Qultra_bold = intern ("ultra-bold"); | |
7151 | staticpro (&Qultra_bold); | |
7152 | Qoblique = intern ("oblique"); | |
7153 | staticpro (&Qoblique); | |
7154 | Qitalic = intern ("italic"); | |
7155 | staticpro (&Qitalic); | |
7156 | Qreverse_oblique = intern ("reverse-oblique"); | |
7157 | staticpro (&Qreverse_oblique); | |
7158 | Qreverse_italic = intern ("reverse-italic"); | |
7159 | staticpro (&Qreverse_italic); | |
7160 | Qultra_condensed = intern ("ultra-condensed"); | |
7161 | staticpro (&Qultra_condensed); | |
7162 | Qextra_condensed = intern ("extra-condensed"); | |
7163 | staticpro (&Qextra_condensed); | |
7164 | Qcondensed = intern ("condensed"); | |
7165 | staticpro (&Qcondensed); | |
7166 | Qsemi_condensed = intern ("semi-condensed"); | |
7167 | staticpro (&Qsemi_condensed); | |
7168 | Qsemi_expanded = intern ("semi-expanded"); | |
7169 | staticpro (&Qsemi_expanded); | |
7170 | Qexpanded = intern ("expanded"); | |
7171 | staticpro (&Qexpanded); | |
7172 | Qextra_expanded = intern ("extra-expanded"); | |
7173 | staticpro (&Qextra_expanded); | |
7174 | Qultra_expanded = intern ("ultra-expanded"); | |
7175 | staticpro (&Qultra_expanded); | |
7176 | Qbackground_color = intern ("background-color"); | |
7177 | staticpro (&Qbackground_color); | |
7178 | Qforeground_color = intern ("foreground-color"); | |
7179 | staticpro (&Qforeground_color); | |
7180 | Qunspecified = intern ("unspecified"); | |
7181 | staticpro (&Qunspecified); | |
7182 | ||
92610620 GM |
7183 | Qface_alias = intern ("face-alias"); |
7184 | staticpro (&Qface_alias); | |
82641697 GM |
7185 | Qdefault = intern ("default"); |
7186 | staticpro (&Qdefault); | |
9ea173e8 GM |
7187 | Qtool_bar = intern ("tool-bar"); |
7188 | staticpro (&Qtool_bar); | |
82641697 GM |
7189 | Qregion = intern ("region"); |
7190 | staticpro (&Qregion); | |
8bd201d6 GM |
7191 | Qfringe = intern ("fringe"); |
7192 | staticpro (&Qfringe); | |
045dee35 GM |
7193 | Qheader_line = intern ("header-line"); |
7194 | staticpro (&Qheader_line); | |
8bd201d6 GM |
7195 | Qscroll_bar = intern ("scroll-bar"); |
7196 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
7197 | Qmenu = intern ("menu"); |
7198 | staticpro (&Qmenu); | |
8bd201d6 GM |
7199 | Qcursor = intern ("cursor"); |
7200 | staticpro (&Qcursor); | |
7201 | Qborder = intern ("border"); | |
7202 | staticpro (&Qborder); | |
7203 | Qmouse = intern ("mouse"); | |
7204 | staticpro (&Qmouse); | |
2d764c78 EZ |
7205 | Qtty_color_desc = intern ("tty-color-desc"); |
7206 | staticpro (&Qtty_color_desc); | |
7207 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
7208 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
7209 | Qtty_color_alist = intern ("tty-color-alist"); |
7210 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
7211 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
7212 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 7213 | |
dbc968b8 GM |
7214 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
7215 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
7216 | Vface_alternative_font_family_alist = Qnil; |
7217 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
7218 | Vface_alternative_font_registry_alist = Qnil; |
7219 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 7220 | |
82641697 GM |
7221 | defsubr (&Sinternal_make_lisp_face); |
7222 | defsubr (&Sinternal_lisp_face_p); | |
7223 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 7224 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 7225 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 7226 | #endif |
ea4fa0af GM |
7227 | defsubr (&Scolor_gray_p); |
7228 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
7229 | defsubr (&Sface_attribute_relative_p); |
7230 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
7231 | defsubr (&Sinternal_get_lisp_face_attribute); |
7232 | defsubr (&Sinternal_lisp_face_attribute_values); | |
7233 | defsubr (&Sinternal_lisp_face_equal_p); | |
7234 | defsubr (&Sinternal_lisp_face_empty_p); | |
7235 | defsubr (&Sinternal_copy_lisp_face); | |
7236 | defsubr (&Sinternal_merge_in_global_face); | |
7237 | defsubr (&Sface_font); | |
7238 | defsubr (&Sframe_face_alist); | |
7239 | defsubr (&Sinternal_set_font_selection_order); | |
7240 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 7241 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 7242 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
7243 | #if GLYPH_DEBUG |
7244 | defsubr (&Sdump_face); | |
7245 | defsubr (&Sshow_face_resources); | |
7246 | #endif /* GLYPH_DEBUG */ | |
7247 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 7248 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 7249 | |
38426dee | 7250 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
7251 | defsubr (&Sdump_colors); |
7252 | #endif | |
7253 | ||
7ee72033 MB |
7254 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
7255 | doc: /* *Limit for font matching. | |
228299fa GM |
7256 | If an integer > 0, font matching functions won't load more than |
7257 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
7258 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
7259 | ||
7ee72033 MB |
7260 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
7261 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 7262 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 7263 | |
7ee72033 MB |
7264 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
7265 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
7266 | This stipple pattern is used on monochrome displays |
7267 | instead of shades of gray for a face background color. | |
7268 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
7269 | Vface_default_stipple = build_string ("gray3"); |
7270 | ||
7ee72033 MB |
7271 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
7272 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
7273 | Vtty_defined_color_alist = Qnil; |
7274 | ||
7ee72033 MB |
7275 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
7276 | doc: /* Allowed scalable fonts. | |
228299fa GM |
7277 | A value of nil means don't allow any scalable fonts. |
7278 | A value of t means allow any scalable font. | |
7279 | Otherwise, value must be a list of regular expressions. A font may be | |
7280 | scaled if its name matches a regular expression in the list. | |
7281 | Note that if value is nil, a scalable font might still be used, if no | |
7282 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 7283 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 7284 | |
7ee72033 MB |
7285 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
7286 | doc: /* List of ignored fonts. | |
228299fa GM |
7287 | Each element is a regular expression that matches names of fonts to |
7288 | ignore. */); | |
c824bfbc KH |
7289 | Vface_ignored_fonts = Qnil; |
7290 | ||
c3cee013 | 7291 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 7292 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
7293 | defsubr (&Sx_list_fonts); |
7294 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 7295 | defsubr (&Sx_family_fonts); |
82641697 | 7296 | defsubr (&Sx_font_family_list); |
c3cee013 | 7297 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 7298 | } |