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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
b35df831 | 2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002 |
d26d6fd9 | 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 | |
e0f712ba | 237 | #ifdef MAC_OS |
1a578e9b AC |
238 | #include "macterm.h" |
239 | #define x_display_info mac_display_info | |
240 | #define check_x check_mac | |
e0f712ba | 241 | #endif /* MAC_OS */ |
1a578e9b | 242 | |
c115973b | 243 | #include "buffer.h" |
f211082d | 244 | #include "dispextern.h" |
357f32fc | 245 | #include "blockinput.h" |
b6d40e46 | 246 | #include "window.h" |
bde7c500 | 247 | #include "intervals.h" |
c115973b | 248 | |
87485d6f | 249 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
250 | |
251 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
252 | time.h. On some such systems, Xos.h tries to redefine struct |
253 | timeval and struct timezone if USG is #defined while it is | |
254 | #included. */ | |
657070ac | 255 | |
82641697 | 256 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 257 | #include <time.h> |
657070ac JB |
258 | #undef USG |
259 | #include <X11/Xos.h> | |
260 | #define USG | |
e11d186d | 261 | #define __TIMEVAL__ |
82641697 GM |
262 | #else /* not XOS_NEEDS_TIME_H */ |
263 | #include <X11/Xos.h> | |
264 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 265 | |
82641697 | 266 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 267 | |
82641697 | 268 | #include <stdio.h> |
82641697 | 269 | #include <ctype.h> |
c115973b | 270 | |
82641697 | 271 | #define abs(X) ((X) < 0 ? -(X) : (X)) |
cb637678 | 272 | |
c660ce4e GM |
273 | /* Number of pt per inch (from the TeXbook). */ |
274 | ||
275 | #define PT_PER_INCH 72.27 | |
276 | ||
82641697 GM |
277 | /* Non-zero if face attribute ATTR is unspecified. */ |
278 | ||
279 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
280 | ||
281 | /* Value is the number of elements of VECTOR. */ | |
282 | ||
283 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
284 | ||
178c5d9c | 285 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
286 | to the copy. */ |
287 | ||
288 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 289 | |
82641697 GM |
290 | /* Make a copy of the contents of Lisp string S on the stack using |
291 | alloca. Value is a pointer to the copy. */ | |
292 | ||
d5db4077 | 293 | #define LSTRDUPA(S) STRDUPA (SDATA ((S))) |
82641697 | 294 | |
178c5d9c | 295 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
296 | prime number). */ |
297 | ||
298 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
299 | ||
300 | /* Keyword symbols used for face attribute names. */ | |
301 | ||
302 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
303 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
304 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
305 | Lisp_Object QCreverse_video; | |
2c20458f | 306 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
307 | |
308 | /* Symbols used for attribute values. */ | |
309 | ||
310 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
311 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
312 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
313 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
314 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
315 | Lisp_Object Qultra_expanded; | |
316 | Lisp_Object Qreleased_button, Qpressed_button; | |
317 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
318 | Lisp_Object Qunspecified; |
319 | ||
320 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 321 | |
92610620 GM |
322 | /* The name of the function to call when the background of the frame |
323 | has changed, frame_update_face_colors. */ | |
324 | ||
325 | Lisp_Object Qframe_update_face_colors; | |
326 | ||
82641697 GM |
327 | /* Names of basic faces. */ |
328 | ||
fb4927c4 | 329 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 330 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
039b6394 | 331 | Lisp_Object Qmode_line_inactive; |
fb4927c4 | 332 | extern Lisp_Object Qmode_line; |
8bd201d6 | 333 | |
92610620 GM |
334 | /* The symbol `face-alias'. A symbols having that property is an |
335 | alias for another face. Value of the property is the name of | |
336 | the aliased face. */ | |
337 | ||
338 | Lisp_Object Qface_alias; | |
339 | ||
8bd201d6 GM |
340 | /* Names of frame parameters related to faces. */ |
341 | ||
342 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
343 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
344 | |
345 | /* Default stipple pattern used on monochrome displays. This stipple | |
346 | pattern is used on monochrome displays instead of shades of gray | |
347 | for a face background color. See `set-face-stipple' for possible | |
348 | values for this variable. */ | |
349 | ||
350 | Lisp_Object Vface_default_stipple; | |
351 | ||
82641697 GM |
352 | /* Alist of alternative font families. Each element is of the form |
353 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
354 | try FAMILY1, then FAMILY2, ... */ | |
355 | ||
356 | Lisp_Object Vface_alternative_font_family_alist; | |
357 | ||
32fcc231 GM |
358 | /* Alist of alternative font registries. Each element is of the form |
359 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
360 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
361 | ||
362 | Lisp_Object Vface_alternative_font_registry_alist; | |
363 | ||
82641697 GM |
364 | /* Allowed scalable fonts. A value of nil means don't allow any |
365 | scalable fonts. A value of t means allow the use of any scalable | |
366 | font. Otherwise, value must be a list of regular expressions. A | |
367 | font may be scaled if its name matches a regular expression in the | |
368 | list. */ | |
369 | ||
eeffb293 | 370 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 371 | |
c824bfbc KH |
372 | /* List of regular expressions that matches names of fonts to ignore. */ |
373 | ||
374 | Lisp_Object Vface_ignored_fonts; | |
375 | ||
057df17c GM |
376 | /* Maximum number of fonts to consider in font_list. If not an |
377 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
378 | ||
379 | Lisp_Object Vfont_list_limit; | |
380 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
381 | ||
82641697 GM |
382 | /* The symbols `foreground-color' and `background-color' which can be |
383 | used as part of a `face' property. This is for compatibility with | |
384 | Emacs 20.2. */ | |
385 | ||
386 | Lisp_Object Qforeground_color, Qbackground_color; | |
387 | ||
388 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 389 | |
ff83dbb1 | 390 | Lisp_Object Qface; |
82641697 GM |
391 | extern Lisp_Object Qmouse_face; |
392 | ||
393 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
394 | ||
fef04523 | 395 | Lisp_Object Qbitmap_spec_p; |
f211082d | 396 | |
82641697 GM |
397 | /* Alist of global face definitions. Each element is of the form |
398 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
399 | is a Lisp vector of face attributes. These faces are used | |
400 | to initialize faces for new frames. */ | |
cb637678 | 401 | |
82641697 | 402 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 403 | |
82641697 | 404 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 405 | |
82641697 | 406 | static int next_lface_id; |
c115973b | 407 | |
82641697 | 408 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 409 | |
82641697 GM |
410 | static Lisp_Object *lface_id_to_name; |
411 | static int lface_id_to_name_size; | |
c115973b | 412 | |
ae4b4ba5 GM |
413 | /* TTY color-related functions (defined in tty-colors.el). */ |
414 | ||
b35df831 | 415 | Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
82641697 | 416 | |
ae4b4ba5 GM |
417 | /* The name of the function used to compute colors on TTYs. */ |
418 | ||
419 | Lisp_Object Qtty_color_alist; | |
420 | ||
421 | /* An alist of defined terminal colors and their RGB values. */ | |
422 | ||
423 | Lisp_Object Vtty_defined_color_alist; | |
424 | ||
82641697 GM |
425 | /* Counter for calls to clear_face_cache. If this counter reaches |
426 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
427 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
428 | ||
429 | static int clear_font_table_count; | |
430 | #define CLEAR_FONT_TABLE_COUNT 100 | |
431 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
432 | ||
433 | /* Non-zero means face attributes have been changed since the last | |
434 | redisplay. Used in redisplay_internal. */ | |
435 | ||
436 | int face_change_count; | |
437 | ||
a4a76b61 GM |
438 | /* Non-zero means don't display bold text if a face's foreground |
439 | and background colors are the inverse of the default colors of the | |
440 | display. This is a kluge to suppress `bold black' foreground text | |
441 | which is hard to read on an LCD monitor. */ | |
442 | ||
443 | int tty_suppress_bold_inverse_default_colors_p; | |
444 | ||
dbc968b8 GM |
445 | /* A list of the form `((x . y))' used to avoid consing in |
446 | Finternal_set_lisp_face_attribute. */ | |
447 | ||
448 | static Lisp_Object Vparam_value_alist; | |
449 | ||
82641697 GM |
450 | /* The total number of colors currently allocated. */ |
451 | ||
452 | #if GLYPH_DEBUG | |
453 | static int ncolors_allocated; | |
454 | static int npixmaps_allocated; | |
455 | static int ngcs; | |
456 | #endif | |
457 | ||
ceeda019 GM |
458 | /* Non-zero means the definition of the `menu' face for new frames has |
459 | been changed. */ | |
460 | ||
461 | int menu_face_changed_default; | |
82641697 GM |
462 | |
463 | \f | |
464 | /* Function prototypes. */ | |
465 | ||
466 | struct font_name; | |
467 | struct table_entry; | |
468 | ||
ae4b4ba5 GM |
469 | static void map_tty_color P_ ((struct frame *, struct face *, |
470 | enum lface_attribute_index, int *)); | |
c7ae3284 | 471 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
53c208f6 | 472 | static int may_use_scalable_font_p P_ ((const char *)); |
82641697 GM |
473 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
474 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 475 | int, int)); |
82641697 | 476 | static int x_face_list_fonts P_ ((struct frame *, char *, |
ee5be7c3 | 477 | struct font_name **, int, int)); |
82641697 | 478 | static int font_scalable_p P_ ((struct font_name *)); |
82641697 GM |
479 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
480 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
481 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
482 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 483 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 484 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
485 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
486 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
487 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
488 | static char *build_font_name P_ ((struct font_name *)); | |
489 | static void free_font_names P_ ((struct font_name *, int)); | |
490 | static int sorted_font_list P_ ((struct frame *, char *, | |
491 | int (*cmpfn) P_ ((const void *, const void *)), | |
492 | struct font_name **)); | |
32fcc231 GM |
493 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
494 | Lisp_Object, struct font_name **)); | |
39506348 KH |
495 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
496 | Lisp_Object, struct font_name **)); | |
177c0ea7 | 497 | static int try_font_list P_ ((struct frame *, Lisp_Object *, |
54580ab2 KH |
498 | Lisp_Object, Lisp_Object, struct font_name **, |
499 | int)); | |
4a529c42 GM |
500 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
501 | Lisp_Object, struct font_name **)); | |
82641697 | 502 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
503 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
504 | struct face *, int)); | |
82641697 | 505 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 506 | Lisp_Object *, int, struct face *)); |
82641697 GM |
507 | static struct face *realize_tty_face P_ ((struct face_cache *, |
508 | Lisp_Object *, int)); | |
509 | static int realize_basic_faces P_ ((struct frame *)); | |
510 | static int realize_default_face P_ ((struct frame *)); | |
511 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
512 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
513 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
514 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
515 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
516 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
517 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
518 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
519 | static void clear_face_gcs P_ ((struct face_cache *)); | |
520 | static void free_face_cache P_ ((struct face_cache *)); | |
521 | static int face_numeric_weight P_ ((Lisp_Object)); | |
522 | static int face_numeric_slant P_ ((Lisp_Object)); | |
523 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 | 524 | static int face_fontset P_ ((Lisp_Object *)); |
6ae2cd57 | 525 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int, int*)); |
2c20458f MB |
526 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, Lisp_Object)); |
527 | static void merge_face_inheritance P_ ((struct frame *f, Lisp_Object, | |
528 | Lisp_Object *, Lisp_Object)); | |
82641697 GM |
529 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, |
530 | Lisp_Object)); | |
39506348 KH |
531 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
532 | Lisp_Object, int, int)); | |
82641697 | 533 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 534 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
535 | static void free_realized_faces P_ ((struct face_cache *)); |
536 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
6ae2cd57 | 537 | struct font_name *, int, int, int *)); |
82641697 GM |
538 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); |
539 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
540 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
541 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
542 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
543 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
544 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
545 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
546 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
547 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
548 | int, int)); | |
549 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
550 | struct font_name *, int, |
551 | Lisp_Object)); | |
82641697 GM |
552 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
553 | struct font_name *, int)); | |
554 | ||
c3cee013 | 555 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
556 | |
557 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
558 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
559 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
560 | int (*cmpfn) P_ ((const void *, const void *)))); | |
561 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
562 | static void x_free_gc P_ ((struct frame *, GC)); | |
d5641fc5 | 563 | static void clear_font_table P_ ((struct x_display_info *)); |
82641697 | 564 | |
c3cee013 JR |
565 | #ifdef WINDOWSNT |
566 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
567 | #endif /* WINDOWSNT */ | |
568 | ||
bce72079 GM |
569 | #ifdef USE_X_TOOLKIT |
570 | static void x_update_menu_appearance P_ ((struct frame *)); | |
9180dc8c PJ |
571 | |
572 | extern void free_frame_menubar P_ ((struct frame *)); | |
bce72079 GM |
573 | #endif /* USE_X_TOOLKIT */ |
574 | ||
c3cee013 | 575 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 576 | |
cb637678 | 577 | \f |
82641697 GM |
578 | /*********************************************************************** |
579 | Utilities | |
580 | ***********************************************************************/ | |
c115973b | 581 | |
87485d6f | 582 | #ifdef HAVE_X_WINDOWS |
cb637678 | 583 | |
a435fc2a GM |
584 | #ifdef DEBUG_X_COLORS |
585 | ||
586 | /* The following is a poor mans infrastructure for debugging X color | |
587 | allocation problems on displays with PseudoColor-8. Some X servers | |
588 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
589 | color reference counts completely so that they don't signal an | |
590 | error when a color is freed whose reference count is already 0. | |
591 | Other X servers do. To help me debug this, the following code | |
592 | implements a simple reference counting schema of its own, for a | |
593 | single display/screen. --gerd. */ | |
594 | ||
595 | /* Reference counts for pixel colors. */ | |
596 | ||
597 | int color_count[256]; | |
598 | ||
599 | /* Register color PIXEL as allocated. */ | |
600 | ||
601 | void | |
602 | register_color (pixel) | |
603 | unsigned long pixel; | |
604 | { | |
605 | xassert (pixel < 256); | |
606 | ++color_count[pixel]; | |
607 | } | |
608 | ||
609 | ||
610 | /* Register color PIXEL as deallocated. */ | |
611 | ||
612 | void | |
613 | unregister_color (pixel) | |
614 | unsigned long pixel; | |
615 | { | |
616 | xassert (pixel < 256); | |
617 | if (color_count[pixel] > 0) | |
618 | --color_count[pixel]; | |
619 | else | |
620 | abort (); | |
621 | } | |
622 | ||
623 | ||
624 | /* Register N colors from PIXELS as deallocated. */ | |
625 | ||
626 | void | |
627 | unregister_colors (pixels, n) | |
628 | unsigned long *pixels; | |
629 | int n; | |
630 | { | |
631 | int i; | |
632 | for (i = 0; i < n; ++i) | |
633 | unregister_color (pixels[i]); | |
634 | } | |
635 | ||
08dc08dc GM |
636 | |
637 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
7ee72033 MB |
638 | doc: /* Dump currently allocated colors to stderr. */) |
639 | () | |
08dc08dc GM |
640 | { |
641 | int i, n; | |
642 | ||
643 | fputc ('\n', stderr); | |
178c5d9c | 644 | |
08dc08dc GM |
645 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
646 | if (color_count[i]) | |
647 | { | |
648 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
649 | ++n; | |
650 | if (n % 5 == 0) | |
651 | fputc ('\n', stderr); | |
652 | else | |
653 | fputc ('\t', stderr); | |
654 | } | |
655 | ||
656 | if (n % 5 != 0) | |
657 | fputc ('\n', stderr); | |
658 | return Qnil; | |
659 | } | |
660 | ||
a435fc2a GM |
661 | #endif /* DEBUG_X_COLORS */ |
662 | ||
d12d0a9b | 663 | |
1f847cf8 GM |
664 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
665 | color values. Interrupt input must be blocked when this function | |
666 | is called. */ | |
667 | ||
668 | void | |
669 | x_free_colors (f, pixels, npixels) | |
670 | struct frame *f; | |
671 | unsigned long *pixels; | |
672 | int npixels; | |
673 | { | |
674 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
675 | ||
676 | /* If display has an immutable color map, freeing colors is not | |
677 | necessary and some servers don't allow it. So don't do it. */ | |
678 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
679 | { | |
a435fc2a | 680 | #ifdef DEBUG_X_COLORS |
08dc08dc | 681 | unregister_colors (pixels, npixels); |
a435fc2a | 682 | #endif |
513c5806 GM |
683 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
684 | pixels, npixels, 0); | |
08dc08dc GM |
685 | } |
686 | } | |
687 | ||
688 | ||
689 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
690 | color values. Interrupt input must be blocked when this function | |
691 | is called. */ | |
692 | ||
693 | void | |
694 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
695 | Display *dpy; | |
696 | Screen *screen; | |
697 | Colormap cmap; | |
698 | unsigned long *pixels; | |
699 | int npixels; | |
700 | { | |
701 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
702 | int class = dpyinfo->visual->class; | |
703 | ||
704 | /* If display has an immutable color map, freeing colors is not | |
705 | necessary and some servers don't allow it. So don't do it. */ | |
706 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
707 | { | |
a435fc2a | 708 | #ifdef DEBUG_X_COLORS |
08dc08dc | 709 | unregister_colors (pixels, npixels); |
a435fc2a | 710 | #endif |
513c5806 | 711 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
712 | } |
713 | } | |
714 | ||
08dc08dc | 715 | |
82641697 GM |
716 | /* Create and return a GC for use on frame F. GC values and mask |
717 | are given by XGCV and MASK. */ | |
718 | ||
719 | static INLINE GC | |
720 | x_create_gc (f, mask, xgcv) | |
cb637678 | 721 | struct frame *f; |
82641697 GM |
722 | unsigned long mask; |
723 | XGCValues *xgcv; | |
c115973b JB |
724 | { |
725 | GC gc; | |
82641697 GM |
726 | BLOCK_INPUT; |
727 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
728 | UNBLOCK_INPUT; | |
729 | IF_DEBUG (++ngcs); | |
730 | return gc; | |
731 | } | |
c115973b | 732 | |
42120bc7 | 733 | |
82641697 GM |
734 | /* Free GC which was used on frame F. */ |
735 | ||
736 | static INLINE void | |
737 | x_free_gc (f, gc) | |
738 | struct frame *f; | |
739 | GC gc; | |
740 | { | |
660ed669 | 741 | BLOCK_INPUT; |
82641697 GM |
742 | xassert (--ngcs >= 0); |
743 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
744 | UNBLOCK_INPUT; | |
745 | } | |
660ed669 | 746 | |
82641697 | 747 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 748 | |
c3cee013 JR |
749 | #ifdef WINDOWSNT |
750 | /* W32 emulation of GCs */ | |
751 | ||
752 | static INLINE GC | |
753 | x_create_gc (f, mask, xgcv) | |
754 | struct frame *f; | |
755 | unsigned long mask; | |
756 | XGCValues *xgcv; | |
757 | { | |
758 | GC gc; | |
759 | BLOCK_INPUT; | |
760 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
761 | UNBLOCK_INPUT; | |
762 | IF_DEBUG (++ngcs); | |
763 | return gc; | |
764 | } | |
765 | ||
766 | ||
767 | /* Free GC which was used on frame F. */ | |
768 | ||
769 | static INLINE void | |
770 | x_free_gc (f, gc) | |
771 | struct frame *f; | |
772 | GC gc; | |
773 | { | |
774 | BLOCK_INPUT; | |
775 | xassert (--ngcs >= 0); | |
776 | xfree (gc); | |
777 | UNBLOCK_INPUT; | |
778 | } | |
779 | ||
780 | #endif /* WINDOWSNT */ | |
660ed669 | 781 | |
e0f712ba AC |
782 | #ifdef MAC_OS |
783 | /* Mac OS emulation of GCs */ | |
784 | ||
785 | extern XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *); | |
786 | ||
787 | static INLINE GC | |
788 | x_create_gc (f, mask, xgcv) | |
789 | struct frame *f; | |
790 | unsigned long mask; | |
791 | XGCValues *xgcv; | |
792 | { | |
793 | GC gc; | |
794 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); | |
795 | return gc; | |
796 | } | |
797 | ||
798 | static INLINE void | |
799 | x_free_gc (f, gc) | |
800 | struct frame *f; | |
801 | GC gc; | |
802 | { | |
803 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); | |
804 | } | |
805 | ||
806 | #endif /* MAC_OS */ | |
807 | ||
82641697 GM |
808 | /* Like stricmp. Used to compare parts of font names which are in |
809 | ISO8859-1. */ | |
810 | ||
811 | int | |
812 | xstricmp (s1, s2) | |
23889aba | 813 | const unsigned char *s1, *s2; |
82641697 GM |
814 | { |
815 | while (*s1 && *s2) | |
95887807 | 816 | { |
82641697 GM |
817 | unsigned char c1 = tolower (*s1); |
818 | unsigned char c2 = tolower (*s2); | |
819 | if (c1 != c2) | |
820 | return c1 < c2 ? -1 : 1; | |
821 | ++s1, ++s2; | |
95887807 | 822 | } |
cd0bb842 | 823 | |
82641697 GM |
824 | if (*s1 == 0) |
825 | return *s2 == 0 ? 0 : -1; | |
826 | return 1; | |
827 | } | |
660ed669 | 828 | |
660ed669 | 829 | |
82641697 | 830 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 831 | |
82641697 GM |
832 | static unsigned char * |
833 | xstrlwr (s) | |
834 | unsigned char *s; | |
835 | { | |
836 | unsigned char *p = s; | |
837 | ||
838 | for (p = s; *p; ++p) | |
839 | *p = tolower (*p); | |
840 | ||
841 | return s; | |
c115973b | 842 | } |
cb637678 | 843 | |
42120bc7 | 844 | |
82641697 GM |
845 | /* Signal `error' with message S, and additional argument ARG. */ |
846 | ||
847 | static void | |
848 | signal_error (s, arg) | |
849 | char *s; | |
850 | Lisp_Object arg; | |
42120bc7 | 851 | { |
82641697 GM |
852 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
853 | } | |
42120bc7 | 854 | |
82641697 | 855 | |
c0617987 GM |
856 | /* If FRAME is nil, return a pointer to the selected frame. |
857 | Otherwise, check that FRAME is a live frame, and return a pointer | |
858 | to it. NPARAM is the parameter number of FRAME, for | |
859 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
860 | Lisp function definitions. */ | |
82641697 GM |
861 | |
862 | static INLINE struct frame * | |
863 | frame_or_selected_frame (frame, nparam) | |
864 | Lisp_Object frame; | |
865 | int nparam; | |
866 | { | |
82641697 | 867 | if (NILP (frame)) |
c0617987 | 868 | frame = selected_frame; |
178c5d9c | 869 | |
b7826503 | 870 | CHECK_LIVE_FRAME (frame); |
c0617987 | 871 | return XFRAME (frame); |
42120bc7 | 872 | } |
82641697 | 873 | |
42120bc7 | 874 | \f |
82641697 GM |
875 | /*********************************************************************** |
876 | Frames and faces | |
877 | ***********************************************************************/ | |
cd0bb842 | 878 | |
82641697 | 879 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 880 | |
82641697 GM |
881 | void |
882 | init_frame_faces (f) | |
cb637678 | 883 | struct frame *f; |
cb637678 | 884 | { |
82641697 GM |
885 | /* Make a face cache, if F doesn't have one. */ |
886 | if (FRAME_FACE_CACHE (f) == NULL) | |
887 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 888 | |
c3cee013 | 889 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 890 | /* Make the image cache. */ |
c3cee013 | 891 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
892 | { |
893 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
894 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
895 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
896 | } | |
c3cee013 | 897 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 898 | |
178c5d9c | 899 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
900 | parameters to realize basic faces at this point. */ |
901 | #ifdef HAVE_X_WINDOWS | |
902 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
903 | #endif |
904 | #ifdef WINDOWSNT | |
905 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 AC |
906 | #endif |
907 | #ifdef MAC_OS | |
908 | if (!FRAME_MAC_P (f) || FRAME_MAC_WINDOW (f)) | |
82641697 GM |
909 | #endif |
910 | if (!realize_basic_faces (f)) | |
911 | abort (); | |
912 | } | |
cb637678 | 913 | |
cb637678 | 914 | |
82641697 | 915 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 916 | |
82641697 GM |
917 | void |
918 | free_frame_faces (f) | |
cb637678 | 919 | struct frame *f; |
cb637678 | 920 | { |
82641697 | 921 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 922 | |
82641697 GM |
923 | if (face_cache) |
924 | { | |
925 | free_face_cache (face_cache); | |
926 | FRAME_FACE_CACHE (f) = NULL; | |
927 | } | |
660ed669 | 928 | |
c3cee013 JR |
929 | #ifdef HAVE_WINDOW_SYSTEM |
930 | if (FRAME_WINDOW_P (f)) | |
195f798e | 931 | { |
82641697 GM |
932 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
933 | if (image_cache) | |
195f798e | 934 | { |
82641697 GM |
935 | --image_cache->refcount; |
936 | if (image_cache->refcount == 0) | |
937 | free_image_cache (f); | |
195f798e RS |
938 | } |
939 | } | |
c3cee013 | 940 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
941 | } |
942 | ||
82641697 | 943 | |
8bd201d6 GM |
944 | /* Clear face caches, and recompute basic faces for frame F. Call |
945 | this after changing frame parameters on which those faces depend, | |
946 | or when realized faces have been freed due to changing attributes | |
947 | of named faces. */ | |
82641697 GM |
948 | |
949 | void | |
950 | recompute_basic_faces (f) | |
cb637678 | 951 | struct frame *f; |
cb637678 | 952 | { |
82641697 GM |
953 | if (FRAME_FACE_CACHE (f)) |
954 | { | |
8bd201d6 | 955 | clear_face_cache (0); |
18df9369 GM |
956 | if (!realize_basic_faces (f)) |
957 | abort (); | |
82641697 GM |
958 | } |
959 | } | |
cb637678 | 960 | |
cb637678 | 961 | |
82641697 GM |
962 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
963 | try to free unused fonts, too. */ | |
cb637678 | 964 | |
adfea139 | 965 | void |
82641697 GM |
966 | clear_face_cache (clear_fonts_p) |
967 | int clear_fonts_p; | |
cb637678 | 968 | { |
c3cee013 | 969 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
970 | Lisp_Object tail, frame; |
971 | struct frame *f; | |
828e66d1 | 972 | |
82641697 GM |
973 | if (clear_fonts_p |
974 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 975 | { |
d5641fc5 | 976 | struct x_display_info *dpyinfo; |
177c0ea7 | 977 | |
d5641fc5 GM |
978 | /* Fonts are common for frames on one display, i.e. on |
979 | one X screen. */ | |
980 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
981 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
982 | clear_font_table (dpyinfo); | |
177c0ea7 | 983 | |
82641697 GM |
984 | /* From time to time see if we can unload some fonts. This also |
985 | frees all realized faces on all frames. Fonts needed by | |
986 | faces will be loaded again when faces are realized again. */ | |
987 | clear_font_table_count = 0; | |
195f798e | 988 | |
82641697 | 989 | FOR_EACH_FRAME (tail, frame) |
195f798e | 990 | { |
d5641fc5 | 991 | struct frame *f = XFRAME (frame); |
c3cee013 | 992 | if (FRAME_WINDOW_P (f) |
82641697 | 993 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 994 | free_all_realized_faces (frame); |
82641697 GM |
995 | } |
996 | } | |
997 | else | |
998 | { | |
999 | /* Clear GCs of realized faces. */ | |
1000 | FOR_EACH_FRAME (tail, frame) | |
1001 | { | |
1002 | f = XFRAME (frame); | |
c3cee013 | 1003 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1004 | { |
1005 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1006 | clear_image_cache (f, 0); | |
195f798e RS |
1007 | } |
1008 | } | |
828e66d1 | 1009 | } |
c3cee013 | 1010 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1011 | } |
1012 | ||
82641697 GM |
1013 | |
1014 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1015 | doc: /* Clear face caches on all frames. |
1016 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1017 | (thoroughly) | |
6a3f48c7 | 1018 | Lisp_Object thoroughly; |
cd0bb842 | 1019 | { |
6a3f48c7 | 1020 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1021 | ++face_change_count; |
1022 | ++windows_or_buffers_changed; | |
82641697 GM |
1023 | return Qnil; |
1024 | } | |
1025 | ||
1026 | ||
1027 | ||
c3cee013 | 1028 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1029 | |
1030 | ||
4cba8c0b GM |
1031 | /* Remove fonts from the font table of DPYINFO except for the default |
1032 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1033 | from time to time. */ |
82641697 GM |
1034 | |
1035 | static void | |
d5641fc5 GM |
1036 | clear_font_table (dpyinfo) |
1037 | struct x_display_info *dpyinfo; | |
82641697 | 1038 | { |
82641697 GM |
1039 | int i; |
1040 | ||
d5641fc5 | 1041 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1042 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1043 | { | |
1044 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1045 | Lisp_Object tail, frame; |
1046 | ||
1047 | /* Check if slot is already free. */ | |
1048 | if (font_info->name == NULL) | |
1049 | continue; | |
1050 | ||
3d90c96c | 1051 | /* Don't free a default font of some frame. */ |
d5641fc5 GM |
1052 | FOR_EACH_FRAME (tail, frame) |
1053 | { | |
1054 | struct frame *f = XFRAME (frame); | |
1055 | if (FRAME_WINDOW_P (f) | |
d5641fc5 GM |
1056 | && font_info->font == FRAME_FONT (f)) |
1057 | break; | |
1058 | } | |
82641697 | 1059 | |
d5641fc5 | 1060 | if (!NILP (tail)) |
39506348 | 1061 | continue; |
82641697 | 1062 | |
39506348 KH |
1063 | /* Free names. */ |
1064 | if (font_info->full_name != font_info->name) | |
1065 | xfree (font_info->full_name); | |
1066 | xfree (font_info->name); | |
82641697 | 1067 | |
39506348 KH |
1068 | /* Free the font. */ |
1069 | BLOCK_INPUT; | |
c3cee013 | 1070 | #ifdef HAVE_X_WINDOWS |
39506348 | 1071 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1072 | #endif |
1073 | #ifdef WINDOWSNT | |
39506348 | 1074 | w32_unload_font (dpyinfo, font_info->font); |
c3cee013 | 1075 | #endif |
39506348 | 1076 | UNBLOCK_INPUT; |
82641697 | 1077 | |
39506348 KH |
1078 | /* Mark font table slot free. */ |
1079 | font_info->font = NULL; | |
1080 | font_info->name = font_info->full_name = NULL; | |
1081 | } | |
82641697 GM |
1082 | } |
1083 | ||
c3cee013 | 1084 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1085 | |
1086 | ||
1087 | \f | |
1088 | /*********************************************************************** | |
1089 | X Pixmaps | |
1090 | ***********************************************************************/ | |
1091 | ||
c3cee013 | 1092 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1093 | |
fef04523 | 1094 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1095 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1096 | A bitmap specification is either a string, a file name, or a list |
1097 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1098 | HEIGHT is its height, and DATA is a string containing the bits of | |
1099 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1100 | \(WIDTH + 7)/8 bytes. */) |
1101 | (object) | |
82641697 GM |
1102 | Lisp_Object object; |
1103 | { | |
c7ae3284 | 1104 | int pixmap_p = 0; |
178c5d9c | 1105 | |
c7ae3284 GM |
1106 | if (STRINGP (object)) |
1107 | /* If OBJECT is a string, it's a file name. */ | |
1108 | pixmap_p = 1; | |
1109 | else if (CONSP (object)) | |
1110 | { | |
1111 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1112 | HEIGHT must be integers > 0, and DATA must be string large | |
1113 | enough to hold a bitmap of the specified size. */ | |
1114 | Lisp_Object width, height, data; | |
1115 | ||
1116 | height = width = data = Qnil; | |
178c5d9c | 1117 | |
c7ae3284 GM |
1118 | if (CONSP (object)) |
1119 | { | |
1120 | width = XCAR (object); | |
1121 | object = XCDR (object); | |
1122 | if (CONSP (object)) | |
1123 | { | |
1124 | height = XCAR (object); | |
1125 | object = XCDR (object); | |
1126 | if (CONSP (object)) | |
1127 | data = XCAR (object); | |
1128 | } | |
1129 | } | |
cd0bb842 | 1130 | |
c7ae3284 GM |
1131 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1132 | { | |
1133 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1134 | / BITS_PER_CHAR); | |
d5db4077 | 1135 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1136 | pixmap_p = 1; |
1137 | } | |
1138 | } | |
1139 | ||
1140 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1141 | } |
1142 | ||
cd0bb842 | 1143 | |
82641697 GM |
1144 | /* Load a bitmap according to NAME (which is either a file name or a |
1145 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1146 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1147 | bitmap cannot be loaded, display a message saying so, and return | |
1148 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1149 | if these pointers are not null. */ | |
cd0bb842 | 1150 | |
82641697 | 1151 | static int |
cd0bb842 | 1152 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1153 | FRAME_PTR f; |
cd0bb842 RS |
1154 | Lisp_Object name; |
1155 | unsigned int *w_ptr, *h_ptr; | |
1156 | { | |
1157 | int bitmap_id; | |
1158 | Lisp_Object tem; | |
1159 | ||
1160 | if (NILP (name)) | |
82641697 | 1161 | return 0; |
cd0bb842 | 1162 | |
fef04523 | 1163 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1164 | if (NILP (tem)) |
fef04523 | 1165 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1166 | |
1167 | BLOCK_INPUT; | |
cd0bb842 RS |
1168 | if (CONSP (name)) |
1169 | { | |
1170 | /* Decode a bitmap spec into a bitmap. */ | |
1171 | ||
1172 | int h, w; | |
1173 | Lisp_Object bits; | |
1174 | ||
1175 | w = XINT (Fcar (name)); | |
1176 | h = XINT (Fcar (Fcdr (name))); | |
1177 | bits = Fcar (Fcdr (Fcdr (name))); | |
1178 | ||
d5db4077 | 1179 | bitmap_id = x_create_bitmap_from_data (f, SDATA (bits), |
cd0bb842 RS |
1180 | w, h); |
1181 | } | |
1182 | else | |
1183 | { | |
1184 | /* It must be a string -- a file name. */ | |
1185 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1186 | } | |
1187 | UNBLOCK_INPUT; | |
1188 | ||
7812a96f | 1189 | if (bitmap_id < 0) |
82641697 | 1190 | { |
1b8f7fbc | 1191 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1192 | bitmap_id = 0; |
cd0bb842 | 1193 | |
82641697 GM |
1194 | if (w_ptr) |
1195 | *w_ptr = 0; | |
1196 | if (h_ptr) | |
1197 | *h_ptr = 0; | |
1198 | } | |
1199 | else | |
1200 | { | |
1201 | #if GLYPH_DEBUG | |
1202 | ++npixmaps_allocated; | |
1203 | #endif | |
1204 | if (w_ptr) | |
1205 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1206 | ||
1207 | if (h_ptr) | |
1208 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1209 | } | |
cd0bb842 RS |
1210 | |
1211 | return bitmap_id; | |
cb637678 | 1212 | } |
87485d6f | 1213 | |
c3cee013 | 1214 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1215 | |
87485d6f | 1216 | |
82641697 GM |
1217 | \f |
1218 | /*********************************************************************** | |
1219 | Minimum font bounds | |
1220 | ***********************************************************************/ | |
1221 | ||
c3cee013 | 1222 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1223 | |
d6fc0a22 GM |
1224 | /* Update the line_height of frame F. Return non-zero if line height |
1225 | changes. */ | |
87485d6f | 1226 | |
82641697 GM |
1227 | int |
1228 | frame_update_line_height (f) | |
87485d6f | 1229 | struct frame *f; |
87485d6f | 1230 | { |
39506348 | 1231 | int line_height, changed_p; |
178c5d9c | 1232 | |
39506348 | 1233 | line_height = FONT_HEIGHT (FRAME_FONT (f)); |
c3cee013 JR |
1234 | changed_p = line_height != FRAME_LINE_HEIGHT (f); |
1235 | FRAME_LINE_HEIGHT (f) = line_height; | |
82641697 | 1236 | return changed_p; |
87485d6f MW |
1237 | } |
1238 | ||
c3cee013 | 1239 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1240 | |
1241 | \f | |
1242 | /*********************************************************************** | |
1243 | Fonts | |
1244 | ***********************************************************************/ | |
1245 | ||
c3cee013 | 1246 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1247 | |
39506348 KH |
1248 | /* Load font of face FACE which is used on frame F to display |
1249 | character C. The name of the font to load is determined by lface | |
1250 | and fontset of FACE. */ | |
82641697 GM |
1251 | |
1252 | static void | |
39506348 | 1253 | load_face_font (f, face, c) |
82641697 GM |
1254 | struct frame *f; |
1255 | struct face *face; | |
39506348 | 1256 | int c; |
87485d6f | 1257 | { |
82641697 | 1258 | struct font_info *font_info = NULL; |
39506348 | 1259 | char *font_name; |
6ae2cd57 | 1260 | int needs_overstrike; |
178c5d9c | 1261 | |
82641697 | 1262 | face->font_info_id = -1; |
82641697 | 1263 | face->font = NULL; |
39506348 | 1264 | |
6ae2cd57 MB |
1265 | font_name = choose_face_font (f, face->lface, face->fontset, c, |
1266 | &needs_overstrike); | |
39506348 KH |
1267 | if (!font_name) |
1268 | return; | |
1269 | ||
82641697 | 1270 | BLOCK_INPUT; |
39506348 | 1271 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1272 | UNBLOCK_INPUT; |
1273 | ||
1274 | if (font_info) | |
1275 | { | |
39506348 | 1276 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1277 | face->font = font_info->font; |
1278 | face->font_name = font_info->full_name; | |
6ae2cd57 | 1279 | face->overstrike = needs_overstrike; |
39506348 | 1280 | if (face->gc) |
82641697 | 1281 | { |
39506348 KH |
1282 | x_free_gc (f, face->gc); |
1283 | face->gc = 0; | |
82641697 GM |
1284 | } |
1285 | } | |
39506348 | 1286 | else |
1b8f7fbc | 1287 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1288 | build_string (font_name), Qnil); |
39506348 | 1289 | xfree (font_name); |
87485d6f MW |
1290 | } |
1291 | ||
c3cee013 | 1292 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1293 | |
87485d6f | 1294 | |
82641697 GM |
1295 | \f |
1296 | /*********************************************************************** | |
1297 | X Colors | |
1298 | ***********************************************************************/ | |
1299 | ||
b35df831 MB |
1300 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1301 | RGB_LIST should contain (at least) 3 lisp integers. | |
1302 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1303 | ||
1304 | static int | |
1305 | parse_rgb_list (rgb_list, color) | |
1306 | Lisp_Object rgb_list; | |
1307 | XColor *color; | |
1308 | { | |
1309 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1310 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1311 | { \ | |
1312 | color->field = XINT (XCAR (rgb_list)); \ | |
1313 | rgb_list = XCDR (rgb_list); \ | |
1314 | } \ | |
1315 | else \ | |
1316 | return 0; | |
1317 | ||
1318 | PARSE_RGB_LIST_FIELD (red); | |
1319 | PARSE_RGB_LIST_FIELD (green); | |
1320 | PARSE_RGB_LIST_FIELD (blue); | |
1321 | ||
1322 | return 1; | |
1323 | } | |
1324 | ||
1325 | ||
1326 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1327 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1328 | non-zero, then the `standard' definition of the same color is | |
1329 | returned in it. */ | |
1330 | ||
1331 | static int | |
1332 | tty_lookup_color (f, color, tty_color, std_color) | |
1333 | struct frame *f; | |
1334 | Lisp_Object color; | |
1335 | XColor *tty_color, *std_color; | |
1336 | { | |
1337 | Lisp_Object frame, color_desc; | |
1338 | ||
1339 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1340 | return 0; | |
1341 | ||
1342 | XSETFRAME (frame, f); | |
1343 | ||
1344 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1345 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1346 | { | |
1347 | Lisp_Object rgb; | |
1348 | ||
1349 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1350 | return 0; | |
1351 | ||
1352 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1353 | ||
1354 | rgb = XCDR (XCDR (color_desc)); | |
1355 | if (! parse_rgb_list (rgb, tty_color)) | |
1356 | return 0; | |
1357 | ||
1358 | /* Should we fill in STD_COLOR too? */ | |
1359 | if (std_color) | |
1360 | { | |
1361 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1362 | *std_color = *tty_color; | |
1363 | ||
1364 | /* Do a quick check to see if the returned descriptor is | |
1365 | actually _exactly_ equal to COLOR, otherwise we have to | |
1366 | lookup STD_COLOR separately. If it's impossible to lookup | |
1367 | a standard color, we just give up and use TTY_COLOR. */ | |
1368 | if ((!STRINGP (XCAR (color_desc)) | |
1369 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1370 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1371 | { |
1372 | /* Look up STD_COLOR separately. */ | |
1373 | rgb = call1 (Qtty_color_standard_values, color); | |
1374 | if (! parse_rgb_list (rgb, std_color)) | |
1375 | return 0; | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | return 1; | |
1380 | } | |
1381 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1382 | /* We were called early during startup, and the colors are not | |
1383 | yet set up in tty-defined-color-alist. Don't return a failure | |
1384 | indication, since this produces the annoying "Unable to | |
1385 | load color" messages in the *Messages* buffer. */ | |
1386 | return 1; | |
1387 | else | |
1388 | /* tty-color-desc seems to have returned a bad value. */ | |
1389 | return 0; | |
1390 | } | |
1391 | ||
2d764c78 | 1392 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1393 | |
2d764c78 EZ |
1394 | int |
1395 | tty_defined_color (f, color_name, color_def, alloc) | |
1396 | struct frame *f; | |
1397 | char *color_name; | |
1398 | XColor *color_def; | |
1399 | int alloc; | |
1400 | { | |
2d764c78 EZ |
1401 | int status = 1; |
1402 | ||
b35df831 | 1403 | /* Defaults. */ |
177c0ea7 | 1404 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1405 | color_def->red = 0; |
1406 | color_def->blue = 0; | |
1407 | color_def->green = 0; | |
a61c12d5 | 1408 | |
b35df831 MB |
1409 | if (*color_name) |
1410 | status = tty_lookup_color (f, build_string (color_name), color_def, 0); | |
1411 | ||
1412 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1413 | { |
1414 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1415 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1416 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1417 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1418 | } |
1419 | ||
b35df831 | 1420 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1421 | status = 1; |
1422 | ||
2d764c78 EZ |
1423 | return status; |
1424 | } | |
1425 | ||
08dc08dc GM |
1426 | |
1427 | /* Decide if color named COLOR_NAME is valid for the display | |
1428 | associated with the frame F; if so, return the rgb values in | |
1429 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1430 | |
1431 | This does the right thing for any type of frame. */ | |
08dc08dc | 1432 | |
2d764c78 EZ |
1433 | int |
1434 | defined_color (f, color_name, color_def, alloc) | |
1435 | struct frame *f; | |
1436 | char *color_name; | |
1437 | XColor *color_def; | |
1438 | int alloc; | |
1439 | { | |
1440 | if (!FRAME_WINDOW_P (f)) | |
1441 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1442 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1443 | else if (FRAME_X_P (f)) |
1444 | return x_defined_color (f, color_name, color_def, alloc); | |
1445 | #endif | |
1446 | #ifdef WINDOWSNT | |
1447 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1448 | return w32_defined_color (f, color_name, color_def, alloc); |
1449 | #endif | |
e0f712ba | 1450 | #ifdef MAC_OS |
2d764c78 | 1451 | else if (FRAME_MAC_P (f)) |
2d764c78 EZ |
1452 | return mac_defined_color (f, color_name, color_def, alloc); |
1453 | #endif | |
1454 | else | |
1455 | abort (); | |
1456 | } | |
1457 | ||
08dc08dc GM |
1458 | |
1459 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1460 | Lisp string. */ | |
2d764c78 EZ |
1461 | |
1462 | Lisp_Object | |
1463 | tty_color_name (f, idx) | |
1464 | struct frame *f; | |
1465 | int idx; | |
1466 | { | |
2d764c78 EZ |
1467 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1468 | { | |
a61c12d5 EZ |
1469 | Lisp_Object frame; |
1470 | Lisp_Object coldesc; | |
1471 | ||
1472 | XSETFRAME (frame, f); | |
1473 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1474 | |
1475 | if (!NILP (coldesc)) | |
1476 | return XCAR (coldesc); | |
1477 | } | |
1478 | #ifdef MSDOS | |
1479 | /* We can have an MSDOG frame under -nw for a short window of | |
1480 | opportunity before internal_terminal_init is called. DTRT. */ | |
1481 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1482 | return msdos_stdcolor_name (idx); | |
1483 | #endif | |
1484 | ||
ef917393 EZ |
1485 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1486 | return build_string (unspecified_fg); | |
1487 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1488 | return build_string (unspecified_bg); | |
c3cee013 JR |
1489 | |
1490 | #ifdef WINDOWSNT | |
1491 | return vga_stdcolor_name (idx); | |
1492 | #endif | |
1493 | ||
ef917393 | 1494 | return Qunspecified; |
2d764c78 | 1495 | } |
82641697 | 1496 | |
08dc08dc | 1497 | |
82641697 GM |
1498 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
1499 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1500 | ||
1501 | static int | |
1502 | face_color_gray_p (f, color_name) | |
1503 | struct frame *f; | |
1504 | char *color_name; | |
1505 | { | |
1506 | XColor color; | |
1507 | int gray_p; | |
1508 | ||
1509 | if (defined_color (f, color_name, &color, 0)) | |
1510 | gray_p = ((abs (color.red - color.green) | |
1511 | < max (color.red, color.green) / 20) | |
1512 | && (abs (color.green - color.blue) | |
1513 | < max (color.green, color.blue) / 20) | |
1514 | && (abs (color.blue - color.red) | |
1515 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1516 | else |
82641697 | 1517 | gray_p = 0; |
178c5d9c | 1518 | |
82641697 | 1519 | return gray_p; |
87485d6f | 1520 | } |
87485d6f | 1521 | |
cb637678 | 1522 | |
82641697 GM |
1523 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1524 | BACKGROUND_P non-zero means the color will be used as background | |
1525 | color. */ | |
1526 | ||
1527 | static int | |
1528 | face_color_supported_p (f, color_name, background_p) | |
1529 | struct frame *f; | |
1530 | char *color_name; | |
1531 | int background_p; | |
1532 | { | |
1533 | Lisp_Object frame; | |
2d764c78 | 1534 | XColor not_used; |
82641697 GM |
1535 | |
1536 | XSETFRAME (frame, f); | |
8affcced KH |
1537 | return (FRAME_WINDOW_P (f) |
1538 | ? (!NILP (Fxw_display_color_p (frame)) | |
1539 | || xstricmp (color_name, "black") == 0 | |
1540 | || xstricmp (color_name, "white") == 0 | |
1541 | || (background_p | |
1542 | && face_color_gray_p (f, color_name)) | |
1543 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1544 | && face_color_gray_p (f, color_name))) | |
1545 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1546 | } |
82641697 GM |
1547 | |
1548 | ||
da47150d | 1549 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1550 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1551 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1552 | If FRAME is nil or omitted, use the selected frame. */) |
1553 | (color, frame) | |
82641697 | 1554 | Lisp_Object color, frame; |
cb637678 | 1555 | { |
2d764c78 EZ |
1556 | struct frame *f; |
1557 | ||
b7826503 PJ |
1558 | CHECK_FRAME (frame); |
1559 | CHECK_STRING (color); | |
2d764c78 | 1560 | f = XFRAME (frame); |
d5db4077 | 1561 | return face_color_gray_p (f, SDATA (color)) ? Qt : Qnil; |
82641697 | 1562 | } |
660ed669 | 1563 | |
fffc2367 | 1564 | |
da47150d | 1565 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1566 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1567 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa GM |
1568 | BACKGROUND-P non-nil means COLOR is used as a background. |
1569 | If FRAME is nil or omitted, use the selected frame. | |
7ee72033 MB |
1570 | COLOR must be a valid color name. */) |
1571 | (color, frame, background_p) | |
82641697 GM |
1572 | Lisp_Object frame, color, background_p; |
1573 | { | |
2d764c78 EZ |
1574 | struct frame *f; |
1575 | ||
b7826503 PJ |
1576 | CHECK_FRAME (frame); |
1577 | CHECK_STRING (color); | |
2d764c78 | 1578 | f = XFRAME (frame); |
d5db4077 | 1579 | if (face_color_supported_p (f, SDATA (color), !NILP (background_p))) |
82641697 GM |
1580 | return Qt; |
1581 | return Qnil; | |
1582 | } | |
7b37f67b | 1583 | |
08dc08dc | 1584 | |
82641697 GM |
1585 | /* Load color with name NAME for use by face FACE on frame F. |
1586 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1587 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1588 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1589 | pixel color. If color cannot be loaded, display a message, and | |
1590 | return the foreground, background or underline color of F, but | |
1591 | record that fact in flags of the face so that we don't try to free | |
1592 | these colors. */ | |
1593 | ||
44747bd0 | 1594 | unsigned long |
82641697 GM |
1595 | load_color (f, face, name, target_index) |
1596 | struct frame *f; | |
1597 | struct face *face; | |
1598 | Lisp_Object name; | |
1599 | enum lface_attribute_index target_index; | |
1600 | { | |
1601 | XColor color; | |
178c5d9c | 1602 | |
82641697 GM |
1603 | xassert (STRINGP (name)); |
1604 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1605 | || target_index == LFACE_BACKGROUND_INDEX | |
1606 | || target_index == LFACE_UNDERLINE_INDEX | |
1607 | || target_index == LFACE_OVERLINE_INDEX | |
1608 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1609 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1610 | |
82641697 GM |
1611 | /* if the color map is full, defined_color will return a best match |
1612 | to the values in an existing cell. */ | |
d5db4077 | 1613 | if (!defined_color (f, SDATA (name), &color, 1)) |
82641697 | 1614 | { |
2d764c78 | 1615 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1616 | |
82641697 | 1617 | switch (target_index) |
1120eb5e | 1618 | { |
82641697 GM |
1619 | case LFACE_FOREGROUND_INDEX: |
1620 | face->foreground_defaulted_p = 1; | |
1621 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1622 | break; | |
178c5d9c | 1623 | |
82641697 GM |
1624 | case LFACE_BACKGROUND_INDEX: |
1625 | face->background_defaulted_p = 1; | |
1626 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1627 | break; | |
178c5d9c | 1628 | |
82641697 GM |
1629 | case LFACE_UNDERLINE_INDEX: |
1630 | face->underline_defaulted_p = 1; | |
1631 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1632 | break; | |
178c5d9c | 1633 | |
82641697 GM |
1634 | case LFACE_OVERLINE_INDEX: |
1635 | face->overline_color_defaulted_p = 1; | |
1636 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1637 | break; |
178c5d9c | 1638 | |
82641697 GM |
1639 | case LFACE_STRIKE_THROUGH_INDEX: |
1640 | face->strike_through_color_defaulted_p = 1; | |
1641 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1642 | break; | |
178c5d9c | 1643 | |
82641697 GM |
1644 | case LFACE_BOX_INDEX: |
1645 | face->box_color_defaulted_p = 1; | |
1646 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1647 | break; | |
1648 | ||
1649 | default: | |
1650 | abort (); | |
1120eb5e | 1651 | } |
82641697 GM |
1652 | } |
1653 | #if GLYPH_DEBUG | |
1654 | else | |
1655 | ++ncolors_allocated; | |
1656 | #endif | |
178c5d9c | 1657 | |
82641697 GM |
1658 | return color.pixel; |
1659 | } | |
1120eb5e | 1660 | |
08dc08dc | 1661 | |
c3cee013 | 1662 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1663 | |
82641697 GM |
1664 | /* Load colors for face FACE which is used on frame F. Colors are |
1665 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1666 | of ATTRS. If the background color specified is not supported on F, | |
1667 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1668 | ||
1669 | static void | |
1670 | load_face_colors (f, face, attrs) | |
1671 | struct frame *f; | |
1672 | struct face *face; | |
1673 | Lisp_Object *attrs; | |
1674 | { | |
1675 | Lisp_Object fg, bg; | |
1676 | ||
1677 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1678 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1679 | ||
1680 | /* Swap colors if face is inverse-video. */ | |
1681 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1682 | { | |
1683 | Lisp_Object tmp; | |
1684 | tmp = fg; | |
1685 | fg = bg; | |
1686 | bg = tmp; | |
1687 | } | |
1688 | ||
1689 | /* Check for support for foreground, not for background because | |
1690 | face_color_supported_p is smart enough to know that grays are | |
1691 | "supported" as background because we are supposed to use stipple | |
1692 | for them. */ | |
d5db4077 | 1693 | if (!face_color_supported_p (f, SDATA (bg), 0) |
fef04523 | 1694 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1695 | { |
1696 | x_destroy_bitmap (f, face->stipple); | |
1697 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1698 | &face->pixmap_w, &face->pixmap_h); | |
1699 | } | |
82641697 | 1700 | |
be8a72f4 | 1701 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1702 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1703 | } |
1704 | ||
660ed669 | 1705 | |
82641697 | 1706 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1707 | |
cb637678 | 1708 | void |
82641697 | 1709 | unload_color (f, pixel) |
cb637678 | 1710 | struct frame *f; |
82641697 | 1711 | unsigned long pixel; |
cb637678 | 1712 | { |
c3cee013 | 1713 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1714 | if (pixel != -1) |
1715 | { | |
1716 | BLOCK_INPUT; | |
1717 | x_free_colors (f, &pixel, 1); | |
1718 | UNBLOCK_INPUT; | |
1719 | } | |
c3cee013 | 1720 | #endif |
82641697 GM |
1721 | } |
1722 | ||
1723 | ||
1724 | /* Free colors allocated for FACE. */ | |
1725 | ||
1726 | static void | |
1727 | free_face_colors (f, face) | |
1728 | struct frame *f; | |
1729 | struct face *face; | |
1730 | { | |
c3cee013 | 1731 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1732 | if (face->colors_copied_bitwise_p) |
1733 | return; | |
1734 | ||
08dc08dc | 1735 | BLOCK_INPUT; |
178c5d9c | 1736 | |
08dc08dc GM |
1737 | if (!face->foreground_defaulted_p) |
1738 | { | |
1739 | x_free_colors (f, &face->foreground, 1); | |
1740 | IF_DEBUG (--ncolors_allocated); | |
1741 | } | |
178c5d9c | 1742 | |
08dc08dc GM |
1743 | if (!face->background_defaulted_p) |
1744 | { | |
1745 | x_free_colors (f, &face->background, 1); | |
1746 | IF_DEBUG (--ncolors_allocated); | |
1747 | } | |
82641697 | 1748 | |
08dc08dc GM |
1749 | if (face->underline_p |
1750 | && !face->underline_defaulted_p) | |
1751 | { | |
1752 | x_free_colors (f, &face->underline_color, 1); | |
1753 | IF_DEBUG (--ncolors_allocated); | |
1754 | } | |
82641697 | 1755 | |
08dc08dc GM |
1756 | if (face->overline_p |
1757 | && !face->overline_color_defaulted_p) | |
1758 | { | |
1759 | x_free_colors (f, &face->overline_color, 1); | |
1760 | IF_DEBUG (--ncolors_allocated); | |
1761 | } | |
82641697 | 1762 | |
08dc08dc GM |
1763 | if (face->strike_through_p |
1764 | && !face->strike_through_color_defaulted_p) | |
1765 | { | |
1766 | x_free_colors (f, &face->strike_through_color, 1); | |
1767 | IF_DEBUG (--ncolors_allocated); | |
1768 | } | |
82641697 | 1769 | |
08dc08dc GM |
1770 | if (face->box != FACE_NO_BOX |
1771 | && !face->box_color_defaulted_p) | |
1772 | { | |
1773 | x_free_colors (f, &face->box_color, 1); | |
1774 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1775 | } |
08dc08dc GM |
1776 | |
1777 | UNBLOCK_INPUT; | |
2d764c78 | 1778 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1779 | } |
08dc08dc | 1780 | |
c3cee013 | 1781 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1782 | |
1783 | ||
1784 | \f | |
1785 | /*********************************************************************** | |
1786 | XLFD Font Names | |
1787 | ***********************************************************************/ | |
1788 | ||
1789 | /* An enumerator for each field of an XLFD font name. */ | |
1790 | ||
1791 | enum xlfd_field | |
1792 | { | |
1793 | XLFD_FOUNDRY, | |
1794 | XLFD_FAMILY, | |
1795 | XLFD_WEIGHT, | |
1796 | XLFD_SLANT, | |
1797 | XLFD_SWIDTH, | |
1798 | XLFD_ADSTYLE, | |
1799 | XLFD_PIXEL_SIZE, | |
1800 | XLFD_POINT_SIZE, | |
1801 | XLFD_RESX, | |
1802 | XLFD_RESY, | |
1803 | XLFD_SPACING, | |
1804 | XLFD_AVGWIDTH, | |
1805 | XLFD_REGISTRY, | |
1806 | XLFD_ENCODING, | |
1807 | XLFD_LAST | |
1808 | }; | |
1809 | ||
178c5d9c | 1810 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1811 | the XLFD specification. */ |
1812 | ||
1813 | enum xlfd_slant | |
1814 | { | |
1815 | XLFD_SLANT_UNKNOWN, | |
1816 | XLFD_SLANT_ROMAN, | |
1817 | XLFD_SLANT_ITALIC, | |
1818 | XLFD_SLANT_OBLIQUE, | |
1819 | XLFD_SLANT_REVERSE_ITALIC, | |
1820 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1821 | XLFD_SLANT_OTHER | |
1822 | }; | |
1823 | ||
1824 | /* Relative font weight according to XLFD documentation. */ | |
1825 | ||
1826 | enum xlfd_weight | |
1827 | { | |
1828 | XLFD_WEIGHT_UNKNOWN, | |
1829 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1830 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1831 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1832 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1833 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1834 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1835 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1836 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1837 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1838 | }; | |
1839 | ||
1840 | /* Relative proportionate width. */ | |
1841 | ||
1842 | enum xlfd_swidth | |
1843 | { | |
1844 | XLFD_SWIDTH_UNKNOWN, | |
1845 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1846 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1847 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1848 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1849 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1850 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1851 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1852 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1853 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1854 | }; | |
1855 | ||
1856 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1857 | names to numeric and symbolic values. */ | |
1858 | ||
1859 | struct table_entry | |
1860 | { | |
1861 | char *name; | |
1862 | int numeric; | |
1863 | Lisp_Object *symbol; | |
1864 | }; | |
1865 | ||
1866 | /* Table of XLFD slant names and their numeric and symbolic | |
1867 | representations. This table must be sorted by slant names in | |
1868 | ascending order. */ | |
1869 | ||
1870 | static struct table_entry slant_table[] = | |
1871 | { | |
1872 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1873 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1874 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1875 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1876 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1877 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1878 | }; | |
1879 | ||
1880 | /* Table of XLFD weight names. This table must be sorted by weight | |
1881 | names in ascending order. */ | |
1882 | ||
1883 | static struct table_entry weight_table[] = | |
1884 | { | |
1885 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1886 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1887 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1888 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1889 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1890 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1891 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1892 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1893 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1894 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1895 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1896 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1897 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1898 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1899 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1900 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1901 | }; | |
1902 | ||
1903 | /* Table of XLFD width names. This table must be sorted by width | |
1904 | names in ascending order. */ | |
1905 | ||
1906 | static struct table_entry swidth_table[] = | |
1907 | { | |
1908 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1909 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1910 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1911 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1912 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1913 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1914 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1915 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1916 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1917 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1918 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1919 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1920 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1921 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1922 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1923 | }; | |
1924 | ||
1925 | /* Structure used to hold the result of splitting font names in XLFD | |
1926 | format into their fields. */ | |
1927 | ||
1928 | struct font_name | |
1929 | { | |
1930 | /* The original name which is modified destructively by | |
1931 | split_font_name. The pointer is kept here to be able to free it | |
1932 | if it was allocated from the heap. */ | |
1933 | char *name; | |
1934 | ||
1935 | /* Font name fields. Each vector element points into `name' above. | |
1936 | Fields are NUL-terminated. */ | |
1937 | char *fields[XLFD_LAST]; | |
1938 | ||
1939 | /* Numeric values for those fields that interest us. See | |
1940 | split_font_name for which these are. */ | |
1941 | int numeric[XLFD_LAST]; | |
8e1b21a7 KH |
1942 | |
1943 | /* Lower value mean higher priority. */ | |
1944 | int registry_priority; | |
82641697 GM |
1945 | }; |
1946 | ||
1947 | /* The frame in effect when sorting font names. Set temporarily in | |
1948 | sort_fonts so that it is available in font comparison functions. */ | |
1949 | ||
1950 | static struct frame *font_frame; | |
1951 | ||
1952 | /* Order by which font selection chooses fonts. The default values | |
1953 | mean `first, find a best match for the font width, then for the | |
1954 | font height, then for weight, then for slant.' This variable can be | |
1955 | set via set-face-font-sort-order. */ | |
1956 | ||
e0f712ba | 1957 | #ifdef MAC_OS |
a08332c0 GM |
1958 | static int font_sort_order[4] = { |
1959 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1960 | }; | |
1a578e9b | 1961 | #else |
82641697 | 1962 | static int font_sort_order[4]; |
1a578e9b | 1963 | #endif |
82641697 GM |
1964 | |
1965 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1966 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1967 | is a pointer to the matching table entry or null if no table entry | |
1968 | matches. */ | |
1969 | ||
1970 | static struct table_entry * | |
1971 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1972 | struct table_entry *table; | |
1973 | int dim; | |
1974 | struct font_name *font; | |
1975 | int field_index; | |
1976 | { | |
1977 | /* Function split_font_name converts fields to lower-case, so there | |
1978 | is no need to use xstrlwr or xstricmp here. */ | |
1979 | char *s = font->fields[field_index]; | |
1980 | int low, mid, high, cmp; | |
1981 | ||
1982 | low = 0; | |
1983 | high = dim - 1; | |
1984 | ||
1985 | while (low <= high) | |
1986 | { | |
1987 | mid = (low + high) / 2; | |
1988 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1989 | |
82641697 GM |
1990 | if (cmp < 0) |
1991 | low = mid + 1; | |
1992 | else if (cmp > 0) | |
1993 | high = mid - 1; | |
1994 | else | |
1995 | return table + mid; | |
1996 | } | |
1997 | ||
1998 | return NULL; | |
1999 | } | |
2000 | ||
2001 | ||
2002 | /* Return a numeric representation for font name field | |
2003 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2004 | has DIM entries. Value is the numeric value found or DFLT if no | |
2005 | table entry matches. This function is used to translate weight, | |
2006 | slant, and swidth names of XLFD font names to numeric values. */ | |
2007 | ||
2008 | static INLINE int | |
2009 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
2010 | struct table_entry *table; | |
2011 | int dim; | |
2012 | struct font_name *font; | |
2013 | int field_index; | |
2014 | int dflt; | |
2015 | { | |
2016 | struct table_entry *p; | |
2017 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2018 | return p ? p->numeric : dflt; | |
2019 | } | |
2020 | ||
2021 | ||
2022 | /* Return a symbolic representation for font name field | |
2023 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2024 | has DIM entries. Value is the symbolic value found or DFLT if no | |
2025 | table entry matches. This function is used to translate weight, | |
2026 | slant, and swidth names of XLFD font names to symbols. */ | |
2027 | ||
2028 | static INLINE Lisp_Object | |
2029 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
2030 | struct table_entry *table; | |
2031 | int dim; | |
2032 | struct font_name *font; | |
2033 | int field_index; | |
6fc556fd | 2034 | Lisp_Object dflt; |
82641697 GM |
2035 | { |
2036 | struct table_entry *p; | |
2037 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2038 | return p ? *p->symbol : dflt; | |
2039 | } | |
2040 | ||
2041 | ||
2042 | /* Return a numeric value for the slant of the font given by FONT. */ | |
2043 | ||
2044 | static INLINE int | |
2045 | xlfd_numeric_slant (font) | |
2046 | struct font_name *font; | |
2047 | { | |
2048 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
2049 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
2050 | } | |
2051 | ||
2052 | ||
2053 | /* Return a symbol representing the weight of the font given by FONT. */ | |
2054 | ||
2055 | static INLINE Lisp_Object | |
2056 | xlfd_symbolic_slant (font) | |
2057 | struct font_name *font; | |
2058 | { | |
2059 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
2060 | font, XLFD_SLANT, Qnormal); | |
2061 | } | |
2062 | ||
2063 | ||
2064 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2065 | ||
2066 | static INLINE int | |
2067 | xlfd_numeric_weight (font) | |
2068 | struct font_name *font; | |
2069 | { | |
2070 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2071 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2072 | } | |
2073 | ||
2074 | ||
2075 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2076 | ||
2077 | static INLINE Lisp_Object | |
2078 | xlfd_symbolic_weight (font) | |
2079 | struct font_name *font; | |
2080 | { | |
2081 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2082 | font, XLFD_WEIGHT, Qnormal); | |
2083 | } | |
2084 | ||
2085 | ||
2086 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2087 | name fields are found in FONT. */ | |
2088 | ||
2089 | static INLINE int | |
2090 | xlfd_numeric_swidth (font) | |
2091 | struct font_name *font; | |
2092 | { | |
2093 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2094 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2095 | } | |
2096 | ||
2097 | ||
2098 | /* Return a symbolic value for the swidth of FONT. */ | |
2099 | ||
2100 | static INLINE Lisp_Object | |
2101 | xlfd_symbolic_swidth (font) | |
2102 | struct font_name *font; | |
2103 | { | |
2104 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2105 | font, XLFD_SWIDTH, Qnormal); | |
2106 | } | |
178c5d9c | 2107 | |
82641697 GM |
2108 | |
2109 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2110 | entries. Value is a pointer to the matching table entry or null if | |
2111 | no element of TABLE contains SYMBOL. */ | |
2112 | ||
2113 | static struct table_entry * | |
2114 | face_value (table, dim, symbol) | |
2115 | struct table_entry *table; | |
2116 | int dim; | |
2117 | Lisp_Object symbol; | |
2118 | { | |
2119 | int i; | |
2120 | ||
2121 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2122 | |
82641697 GM |
2123 | for (i = 0; i < dim; ++i) |
2124 | if (EQ (*table[i].symbol, symbol)) | |
2125 | break; | |
2126 | ||
2127 | return i < dim ? table + i : NULL; | |
2128 | } | |
2129 | ||
2130 | ||
2131 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2132 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2133 | ||
2134 | static INLINE int | |
2135 | face_numeric_value (table, dim, symbol) | |
2136 | struct table_entry *table; | |
2137 | int dim; | |
2138 | Lisp_Object symbol; | |
2139 | { | |
2140 | struct table_entry *p = face_value (table, dim, symbol); | |
2141 | return p ? p->numeric : -1; | |
2142 | } | |
2143 | ||
2144 | ||
2145 | /* Return a numeric value representing the weight specified by Lisp | |
2146 | symbol WEIGHT. Value is one of the enumerators of enum | |
2147 | xlfd_weight. */ | |
2148 | ||
2149 | static INLINE int | |
2150 | face_numeric_weight (weight) | |
2151 | Lisp_Object weight; | |
2152 | { | |
2153 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2154 | } | |
2155 | ||
2156 | ||
2157 | /* Return a numeric value representing the slant specified by Lisp | |
2158 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2159 | ||
2160 | static INLINE int | |
2161 | face_numeric_slant (slant) | |
2162 | Lisp_Object slant; | |
2163 | { | |
2164 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2165 | } | |
2166 | ||
2167 | ||
2168 | /* Return a numeric value representing the swidth specified by Lisp | |
2169 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2170 | ||
2171 | static int | |
2172 | face_numeric_swidth (width) | |
2173 | Lisp_Object width; | |
2174 | { | |
2175 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2176 | } | |
2177 | ||
2178 | ||
c3cee013 | 2179 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2180 | |
2181 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2182 | ||
2183 | static INLINE int | |
2184 | xlfd_fixed_p (font) | |
2185 | struct font_name *font; | |
2186 | { | |
2187 | /* Function split_font_name converts fields to lower-case, so there | |
2188 | is no need to use tolower here. */ | |
2189 | return *font->fields[XLFD_SPACING] != 'p'; | |
2190 | } | |
2191 | ||
2192 | ||
2193 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2194 | ||
2195 | The actual height of the font when displayed on F depends on the | |
2196 | resolution of both the font and frame. For example, a 10pt font | |
2197 | designed for a 100dpi display will display larger than 10pt on a | |
2198 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2199 | display one is using. For example, some intlfonts are available in | |
2200 | 72dpi versions, only.) | |
2201 | ||
2202 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2203 | be determined. */ | |
2204 | ||
2205 | static INLINE int | |
2206 | xlfd_point_size (f, font) | |
2207 | struct frame *f; | |
2208 | struct font_name *font; | |
2209 | { | |
2210 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2211 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2212 | double pixel; | |
82641697 GM |
2213 | int real_pt; |
2214 | ||
933b0249 GM |
2215 | if (*pixel_field == '[') |
2216 | { | |
2217 | /* The pixel size field is `[A B C D]' which specifies | |
2218 | a transformation matrix. | |
2219 | ||
2220 | A B 0 | |
2221 | C D 0 | |
2222 | 0 0 1 | |
2223 | ||
2224 | by which all glyphs of the font are transformed. The spec | |
2225 | says that s scalar value N for the pixel size is equivalent | |
2226 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2227 | char *start = pixel_field + 1, *end; | |
2228 | double matrix[4]; | |
2229 | int i; | |
2230 | ||
2231 | for (i = 0; i < 4; ++i) | |
2232 | { | |
2233 | matrix[i] = strtod (start, &end); | |
2234 | start = end; | |
2235 | } | |
2236 | ||
7eb4b061 | 2237 | pixel = matrix[3]; |
933b0249 GM |
2238 | } |
2239 | else | |
2240 | pixel = atoi (pixel_field); | |
177c0ea7 | 2241 | |
933b0249 | 2242 | if (pixel == 0) |
82641697 GM |
2243 | real_pt = 0; |
2244 | else | |
933b0249 | 2245 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2246 | |
2247 | return real_pt; | |
2248 | } | |
2249 | ||
2250 | ||
39506348 KH |
2251 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2252 | of frame F. This function is used to guess a point size of font | |
2253 | when only the pixel height of the font is available. */ | |
2254 | ||
2255 | static INLINE int | |
2256 | pixel_point_size (f, pixel) | |
2257 | struct frame *f; | |
2258 | int pixel; | |
2259 | { | |
2260 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2261 | double real_pt; | |
2262 | int int_pt; | |
2263 | ||
c660ce4e GM |
2264 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2265 | point size of one dot. */ | |
2266 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2267 | int_pt = real_pt + 0.5; |
2268 | ||
2269 | return int_pt; | |
2270 | } | |
2271 | ||
2272 | ||
82641697 GM |
2273 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2274 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2275 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2276 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2277 | zero if the font name doesn't have the format we expect. The | |
2278 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2279 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2280 | |
2281 | static int | |
2282 | split_font_name (f, font, numeric_p) | |
2283 | struct frame *f; | |
2284 | struct font_name *font; | |
2285 | int numeric_p; | |
2286 | { | |
2287 | int i = 0; | |
2288 | int success_p; | |
2289 | ||
2290 | if (*font->name == '-') | |
2291 | { | |
2292 | char *p = xstrlwr (font->name) + 1; | |
2293 | ||
7b16a6bf | 2294 | while (i < XLFD_LAST) |
82641697 GM |
2295 | { |
2296 | font->fields[i] = p; | |
7b16a6bf | 2297 | ++i; |
933b0249 GM |
2298 | |
2299 | /* Pixel and point size may be of the form `[....]'. For | |
2300 | BNF, see XLFD spec, chapter 4. Negative values are | |
2301 | indicated by tilde characters which we replace with | |
2302 | `-' characters, here. */ | |
2303 | if (*p == '[' | |
d5188d8c GM |
2304 | && (i - 1 == XLFD_PIXEL_SIZE |
2305 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2306 | { |
2307 | char *start, *end; | |
2308 | int j; | |
177c0ea7 | 2309 | |
933b0249 GM |
2310 | for (++p; *p && *p != ']'; ++p) |
2311 | if (*p == '~') | |
2312 | *p = '-'; | |
2313 | ||
2314 | /* Check that the matrix contains 4 floating point | |
2315 | numbers. */ | |
3849cbf4 | 2316 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2317 | j < 4; |
2318 | ++j, start = end) | |
2319 | if (strtod (start, &end) == 0 && start == end) | |
2320 | break; | |
2321 | ||
2322 | if (j < 4) | |
2323 | break; | |
2324 | } | |
178c5d9c | 2325 | |
82641697 GM |
2326 | while (*p && *p != '-') |
2327 | ++p; | |
178c5d9c | 2328 | |
82641697 GM |
2329 | if (*p != '-') |
2330 | break; | |
178c5d9c | 2331 | |
82641697 GM |
2332 | *p++ = 0; |
2333 | } | |
2334 | } | |
2335 | ||
2336 | success_p = i == XLFD_LAST; | |
2337 | ||
2338 | /* If requested, and font name was in the expected format, | |
2339 | compute numeric values for some fields. */ | |
2340 | if (numeric_p && success_p) | |
2341 | { | |
2342 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2343 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2344 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2345 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2346 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2347 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
82641697 GM |
2348 | } |
2349 | ||
8e1b21a7 KH |
2350 | /* Initialize it to zero. It will be overridden by font_list while |
2351 | trying alternate registries. */ | |
2352 | font->registry_priority = 0; | |
2353 | ||
82641697 GM |
2354 | return success_p; |
2355 | } | |
2356 | ||
2357 | ||
2358 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2359 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2360 | |
82641697 GM |
2361 | static char * |
2362 | build_font_name (font) | |
2363 | struct font_name *font; | |
2364 | { | |
2365 | int i; | |
2366 | int size = 100; | |
2367 | char *font_name = (char *) xmalloc (size); | |
2368 | int total_length = 0; | |
2369 | ||
2370 | for (i = 0; i < XLFD_LAST; ++i) | |
2371 | { | |
2372 | /* Add 1 because of the leading `-'. */ | |
2373 | int len = strlen (font->fields[i]) + 1; | |
2374 | ||
2375 | /* Reallocate font_name if necessary. Add 1 for the final | |
2376 | NUL-byte. */ | |
2377 | if (total_length + len + 1 >= size) | |
2378 | { | |
2379 | int new_size = max (2 * size, size + len + 1); | |
2380 | int sz = new_size * sizeof *font_name; | |
2381 | font_name = (char *) xrealloc (font_name, sz); | |
2382 | size = new_size; | |
2383 | } | |
2384 | ||
2385 | font_name[total_length] = '-'; | |
2386 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2387 | total_length += len; | |
2388 | } | |
2389 | ||
2390 | font_name[total_length] = 0; | |
2391 | return font_name; | |
2392 | } | |
2393 | ||
2394 | ||
2395 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2396 | itself and all `name' fields in its elements. */ | |
2397 | ||
2398 | static INLINE void | |
2399 | free_font_names (fonts, n) | |
2400 | struct font_name *fonts; | |
2401 | int n; | |
2402 | { | |
2403 | while (n) | |
2404 | xfree (fonts[--n].name); | |
2405 | xfree (fonts); | |
2406 | } | |
2407 | ||
2408 | ||
2409 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2410 | elements using qsort and comparison function CMPFN. F is the frame | |
2411 | on which the fonts will be used. The global variable font_frame | |
2412 | is temporarily set to F to make it available in CMPFN. */ | |
2413 | ||
2414 | static INLINE void | |
2415 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2416 | struct frame *f; | |
2417 | struct font_name *fonts; | |
2418 | int nfonts; | |
2419 | int (*cmpfn) P_ ((const void *, const void *)); | |
2420 | { | |
2421 | font_frame = f; | |
2422 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2423 | font_frame = NULL; | |
2424 | } | |
2425 | ||
2426 | ||
2427 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2428 | display in x_display_list. FONTS is a pointer to a vector of | |
2429 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2430 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2431 | found matching PATTERN. |
82641697 GM |
2432 | |
2433 | For all fonts found, set FONTS[i].name to the name of the font, | |
2434 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2435 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2436 | |
2437 | static int | |
ee5be7c3 | 2438 | x_face_list_fonts (f, pattern, pfonts, nfonts, try_alternatives_p) |
82641697 GM |
2439 | struct frame *f; |
2440 | char *pattern; | |
ee5be7c3 | 2441 | struct font_name **pfonts; |
82641697 | 2442 | int nfonts, try_alternatives_p; |
82641697 | 2443 | { |
702a1e8e | 2444 | int n, nignored; |
82641697 | 2445 | |
c3cee013 JR |
2446 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2447 | better to do it the other way around. */ | |
2448 | Lisp_Object lfonts; | |
2449 | Lisp_Object lpattern, tem; | |
ee5be7c3 JD |
2450 | struct font_name *fonts = 0; |
2451 | int num_fonts = nfonts; | |
c3cee013 | 2452 | |
ee5be7c3 | 2453 | *pfonts = 0; |
c3cee013 JR |
2454 | lpattern = build_string (pattern); |
2455 | ||
2456 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2457 | #ifdef WINDOWSNT |
a86110a8 | 2458 | BLOCK_INPUT; |
c3cee013 | 2459 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2460 | UNBLOCK_INPUT; |
d26d6fd9 | 2461 | #else |
702a1e8e | 2462 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2463 | #endif |
c3cee013 | 2464 | |
ee5be7c3 | 2465 | if (nfonts < 0 && CONSP (lfonts)) |
2b47dacc | 2466 | num_fonts = XFASTINT (Flength (lfonts)); |
ee5be7c3 | 2467 | |
d26d6fd9 GM |
2468 | /* Make a copy of the font names we got from X, and |
2469 | split them into fields. */ | |
702a1e8e | 2470 | n = nignored = 0; |
ee5be7c3 | 2471 | for (tem = lfonts; CONSP (tem) && n < num_fonts; tem = XCDR (tem)) |
c3cee013 | 2472 | { |
d26d6fd9 | 2473 | Lisp_Object elt, tail; |
53c208f6 | 2474 | const char *name = SDATA (XCAR (tem)); |
82641697 | 2475 | |
702a1e8e | 2476 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2477 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2478 | { |
d26d6fd9 GM |
2479 | elt = XCAR (tail); |
2480 | if (STRINGP (elt) | |
2481 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2482 | break; | |
2483 | } | |
2484 | if (!NILP (tail)) | |
702a1e8e GM |
2485 | { |
2486 | ++nignored; | |
2487 | continue; | |
2488 | } | |
c824bfbc | 2489 | |
ee5be7c3 JD |
2490 | if (! fonts) |
2491 | { | |
2492 | *pfonts = (struct font_name *) xmalloc (num_fonts * sizeof **pfonts); | |
2493 | fonts = *pfonts; | |
2494 | } | |
2495 | ||
d26d6fd9 GM |
2496 | /* Make a copy of the font name. */ |
2497 | fonts[n].name = xstrdup (name); | |
82641697 | 2498 | |
702a1e8e | 2499 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2500 | { |
702a1e8e GM |
2501 | if (font_scalable_p (fonts + n) |
2502 | && !may_use_scalable_font_p (name)) | |
2503 | { | |
2504 | ++nignored; | |
2505 | xfree (fonts[n].name); | |
2506 | } | |
82641697 | 2507 | else |
d26d6fd9 | 2508 | ++n; |
82641697 | 2509 | } |
d26d6fd9 | 2510 | else |
702a1e8e GM |
2511 | xfree (fonts[n].name); |
2512 | } | |
2513 | ||
82641697 GM |
2514 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2515 | if (n == 0 && try_alternatives_p) | |
2516 | { | |
2517 | Lisp_Object list = Valternate_fontname_alist; | |
2518 | ||
72ecb43c JD |
2519 | if (*pfonts) |
2520 | { | |
2521 | xfree (*pfonts); | |
2522 | *pfonts = 0; | |
2523 | } | |
2524 | ||
82641697 GM |
2525 | while (CONSP (list)) |
2526 | { | |
2527 | Lisp_Object entry = XCAR (list); | |
2528 | if (CONSP (entry) | |
2529 | && STRINGP (XCAR (entry)) | |
d5db4077 | 2530 | && strcmp (SDATA (XCAR (entry)), pattern) == 0) |
82641697 GM |
2531 | break; |
2532 | list = XCDR (list); | |
2533 | } | |
2534 | ||
2535 | if (CONSP (list)) | |
2536 | { | |
2537 | Lisp_Object patterns = XCAR (list); | |
2538 | Lisp_Object name; | |
178c5d9c | 2539 | |
82641697 GM |
2540 | while (CONSP (patterns) |
2541 | /* If list is screwed up, give up. */ | |
2542 | && (name = XCAR (patterns), | |
2543 | STRINGP (name)) | |
2544 | /* Ignore patterns equal to PATTERN because we tried that | |
2545 | already with no success. */ | |
d5db4077 KR |
2546 | && (strcmp (SDATA (name), pattern) == 0 |
2547 | || (n = x_face_list_fonts (f, SDATA (name), | |
ee5be7c3 | 2548 | pfonts, nfonts, 0), |
82641697 GM |
2549 | n == 0))) |
2550 | patterns = XCDR (patterns); | |
2551 | } | |
2552 | } | |
178c5d9c | 2553 | |
82641697 GM |
2554 | return n; |
2555 | } | |
178c5d9c | 2556 | |
82641697 | 2557 | |
82641697 GM |
2558 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2559 | using comparison function CMPFN. Value is the number of fonts | |
2560 | found. If value is non-zero, *FONTS is set to a vector of | |
2561 | font_name structures allocated from the heap containing matching | |
2562 | fonts. Each element of *FONTS contains a name member that is also | |
2563 | allocated from the heap. Font names in these structures are split | |
2564 | into fields. Use free_font_names to free such an array. */ | |
2565 | ||
2566 | static int | |
2567 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2568 | struct frame *f; | |
2569 | char *pattern; | |
2570 | int (*cmpfn) P_ ((const void *, const void *)); | |
2571 | struct font_name **fonts; | |
2572 | { | |
2573 | int nfonts; | |
178c5d9c | 2574 | |
82641697 | 2575 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c | 2576 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
ee5be7c3 JD |
2577 | if (INTEGERP (Vfont_list_limit)) |
2578 | nfonts = XINT (Vfont_list_limit); | |
178c5d9c | 2579 | |
ee5be7c3 JD |
2580 | *fonts = NULL; |
2581 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1); | |
178c5d9c SS |
2582 | |
2583 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2584 | fonts were found, make sure to set *FONTS to null. */ |
2585 | if (nfonts) | |
2586 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
ee5be7c3 | 2587 | else if (*fonts) |
82641697 GM |
2588 | { |
2589 | xfree (*fonts); | |
2590 | *fonts = NULL; | |
2591 | } | |
2592 | ||
2593 | return nfonts; | |
2594 | } | |
2595 | ||
2596 | ||
2597 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2598 | strcmp. Sort order is given by the global variable | |
2599 | font_sort_order. Font names are sorted so that, everything else | |
2600 | being equal, fonts with a resolution closer to that of the frame on | |
2601 | which they are used are listed first. The global variable | |
2602 | font_frame is the frame on which we operate. */ | |
2603 | ||
2604 | static int | |
2605 | cmp_font_names (a, b) | |
2606 | const void *a, *b; | |
2607 | { | |
2608 | struct font_name *x = (struct font_name *) a; | |
2609 | struct font_name *y = (struct font_name *) b; | |
2610 | int cmp; | |
2611 | ||
2612 | /* All strings have been converted to lower-case by split_font_name, | |
2613 | so we can use strcmp here. */ | |
2614 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2615 | if (cmp == 0) | |
2616 | { | |
2617 | int i; | |
178c5d9c | 2618 | |
82641697 GM |
2619 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2620 | { | |
2621 | int j = font_sort_order[i]; | |
2622 | cmp = x->numeric[j] - y->numeric[j]; | |
2623 | } | |
2624 | ||
2625 | if (cmp == 0) | |
2626 | { | |
2627 | /* Everything else being equal, we prefer fonts with an | |
2628 | y-resolution closer to that of the frame. */ | |
2629 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2630 | int x_resy = x->numeric[XLFD_RESY]; | |
2631 | int y_resy = y->numeric[XLFD_RESY]; | |
2632 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2633 | } | |
2634 | } | |
2635 | ||
2636 | return cmp; | |
2637 | } | |
2638 | ||
2639 | ||
2640 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2641 | is non-nil list fonts matching that pattern. Otherwise, if |
2642 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2643 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2644 | structures allocated from the heap containing the fonts found. | |
2645 | Value is the number of fonts found. */ | |
82641697 GM |
2646 | |
2647 | static int | |
32fcc231 | 2648 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2649 | struct frame *f; |
39506348 | 2650 | Lisp_Object pattern, family, registry; |
82641697 GM |
2651 | struct font_name **fonts; |
2652 | { | |
39506348 KH |
2653 | char *pattern_str, *family_str, *registry_str; |
2654 | ||
2655 | if (NILP (pattern)) | |
82641697 | 2656 | { |
d5db4077 KR |
2657 | family_str = (NILP (family) ? "*" : (char *) SDATA (family)); |
2658 | registry_str = (NILP (registry) ? "*" : (char *) SDATA (registry)); | |
178c5d9c | 2659 | |
39506348 | 2660 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2661 | + strlen (registry_str) |
2662 | + 10); | |
2663 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2664 | strcat (pattern_str, family_str); | |
2665 | strcat (pattern_str, "-*-"); | |
2666 | strcat (pattern_str, registry_str); | |
2667 | if (!index (registry_str, '-')) | |
2668 | { | |
2669 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2670 | strcat (pattern_str, "-*"); | |
2671 | else | |
2672 | strcat (pattern_str, "*-*"); | |
2673 | } | |
82641697 | 2674 | } |
39506348 | 2675 | else |
d5db4077 | 2676 | pattern_str = (char *) SDATA (pattern); |
178c5d9c | 2677 | |
39506348 | 2678 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2679 | } |
2680 | ||
2681 | ||
8e1b21a7 KH |
2682 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2683 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2684 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2685 | freed. */ | |
2686 | ||
2687 | static struct font_name * | |
2688 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2689 | struct font_name *fonts1, *fonts2; | |
2690 | int nfonts1, nfonts2; | |
2691 | { | |
2692 | int new_nfonts = nfonts1 + nfonts2; | |
2693 | struct font_name *new_fonts; | |
2694 | ||
2695 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2696 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2697 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2698 | xfree (fonts1); | |
2699 | xfree (fonts2); | |
2700 | return new_fonts; | |
2701 | } | |
2702 | ||
2703 | ||
32fcc231 GM |
2704 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2705 | ||
2706 | If PATTERN is non-nil list fonts matching that pattern. | |
2707 | ||
8e1b21a7 KH |
2708 | If REGISTRY is non-nil, return fonts with that registry and the |
2709 | alternative registries from Vface_alternative_font_registry_alist. | |
177c0ea7 | 2710 | |
32fcc231 GM |
2711 | If REGISTRY is nil return fonts of any registry. |
2712 | ||
2713 | Set *FONTS to a vector of font_name structures allocated from the | |
2714 | heap containing the fonts found. Value is the number of fonts | |
2715 | found. */ | |
2716 | ||
2717 | static int | |
2718 | font_list (f, pattern, family, registry, fonts) | |
2719 | struct frame *f; | |
2720 | Lisp_Object pattern, family, registry; | |
2721 | struct font_name **fonts; | |
2722 | { | |
2723 | int nfonts = font_list_1 (f, pattern, family, registry, fonts); | |
177c0ea7 | 2724 | |
8e1b21a7 | 2725 | if (!NILP (registry) |
32fcc231 GM |
2726 | && CONSP (Vface_alternative_font_registry_alist)) |
2727 | { | |
2728 | Lisp_Object alter; | |
2729 | ||
2730 | alter = Fassoc (registry, Vface_alternative_font_registry_alist); | |
2731 | if (CONSP (alter)) | |
2732 | { | |
8e1b21a7 KH |
2733 | int reg_prio, i; |
2734 | ||
2735 | for (alter = XCDR (alter), reg_prio = 1; | |
2736 | CONSP (alter); | |
2737 | alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2738 | if (STRINGP (XCAR (alter))) |
8e1b21a7 KH |
2739 | { |
2740 | int nfonts2; | |
2741 | struct font_name *fonts2; | |
2742 | ||
2743 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), | |
2744 | &fonts2); | |
2745 | for (i = 0; i < nfonts2; i++) | |
2746 | fonts2[i].registry_priority = reg_prio; | |
2747 | *fonts = (nfonts > 0 | |
2748 | ? concat_font_list (*fonts, nfonts, fonts2, nfonts2) | |
2749 | : fonts2); | |
2750 | nfonts += nfonts2; | |
2751 | } | |
32fcc231 GM |
2752 | } |
2753 | } | |
2754 | ||
2755 | return nfonts; | |
2756 | } | |
2757 | ||
2758 | ||
82641697 | 2759 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2760 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2761 | entries. */ |
2762 | ||
2763 | static void | |
2764 | remove_duplicates (list) | |
2765 | Lisp_Object list; | |
2766 | { | |
2767 | Lisp_Object tail = list; | |
178c5d9c | 2768 | |
82641697 GM |
2769 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2770 | { | |
2771 | Lisp_Object next = XCDR (tail); | |
2772 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2773 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2774 | else |
2775 | tail = XCDR (tail); | |
2776 | } | |
2777 | } | |
2778 | ||
2779 | ||
92610620 | 2780 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2781 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2782 | If FAMILY is omitted or nil, list all families. |
2783 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2784 | `?' and `*'. | |
2785 | If FRAME is omitted or nil, use the selected frame. | |
2786 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2787 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2788 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2789 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2790 | width, weight and slant of the font. These symbols are the same as for | |
2791 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2792 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2793 | giving the registry and encoding of the font. | |
2794 | The result list is sorted according to the current setting of | |
7ee72033 MB |
2795 | the face font sort order. */) |
2796 | (family, frame) | |
82641697 GM |
2797 | Lisp_Object family, frame; |
2798 | { | |
2799 | struct frame *f = check_x_frame (frame); | |
2800 | struct font_name *fonts; | |
2801 | int i, nfonts; | |
2802 | Lisp_Object result; | |
2803 | struct gcpro gcpro1; | |
82641697 | 2804 | |
39506348 | 2805 | if (!NILP (family)) |
b7826503 | 2806 | CHECK_STRING (family); |
178c5d9c | 2807 | |
82641697 GM |
2808 | result = Qnil; |
2809 | GCPRO1 (result); | |
39506348 | 2810 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2811 | for (i = nfonts - 1; i >= 0; --i) |
2812 | { | |
057df17c GM |
2813 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2814 | char *tem; | |
82641697 | 2815 | |
82641697 GM |
2816 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2817 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2818 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2819 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2820 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2821 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2822 | tem = build_font_name (fonts + i); |
2823 | ASET (v, 6, build_string (tem)); | |
2824 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2825 | fonts[i].fields[XLFD_ENCODING]); | |
2826 | ASET (v, 7, build_string (tem)); | |
2827 | xfree (tem); | |
178c5d9c | 2828 | |
82641697 | 2829 | result = Fcons (v, result); |
82641697 GM |
2830 | } |
2831 | ||
2832 | remove_duplicates (result); | |
2833 | free_font_names (fonts, nfonts); | |
2834 | UNGCPRO; | |
2835 | return result; | |
2836 | } | |
2837 | ||
2838 | ||
2839 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2840 | 0, 1, 0, | |
7ee72033 | 2841 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
2842 | If FRAME is omitted or nil, use the selected frame. |
2843 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
2844 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
2845 | are fixed-pitch. */) |
2846 | (frame) | |
82641697 GM |
2847 | Lisp_Object frame; |
2848 | { | |
2849 | struct frame *f = check_x_frame (frame); | |
2850 | int nfonts, i; | |
2851 | struct font_name *fonts; | |
2852 | Lisp_Object result; | |
2853 | struct gcpro gcpro1; | |
aed13378 | 2854 | int count = SPECPDL_INDEX (); |
178c5d9c | 2855 | |
ee5be7c3 JD |
2856 | /* Let's consider all fonts. */ |
2857 | specbind (intern ("font-list-limit"), make_number (-1)); | |
2858 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); | |
178c5d9c | 2859 | |
82641697 GM |
2860 | result = Qnil; |
2861 | GCPRO1 (result); | |
2862 | for (i = nfonts - 1; i >= 0; --i) | |
2863 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2864 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2865 | result); | |
2866 | ||
2867 | remove_duplicates (result); | |
2868 | free_font_names (fonts, nfonts); | |
2869 | UNGCPRO; | |
057df17c | 2870 | return unbind_to (count, result); |
82641697 GM |
2871 | } |
2872 | ||
2873 | ||
2874 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 2875 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
2876 | If optional arguments FACE and FRAME are specified, return only fonts |
2877 | the same size as FACE on FRAME. | |
2878 | PATTERN is a string, perhaps with wildcard characters; | |
2879 | the * character matches any substring, and | |
2880 | the ? character matches any single character. | |
2881 | PATTERN is case-insensitive. | |
2882 | FACE is a face name--a symbol. | |
2883 | ||
2884 | The return value is a list of strings, suitable as arguments to | |
2885 | set-face-font. | |
2886 | ||
2887 | Fonts Emacs can't use may or may not be excluded | |
2888 | even if they match PATTERN and FACE. | |
2889 | The optional fourth argument MAXIMUM sets a limit on how many | |
2890 | fonts to match. The first MAXIMUM fonts are reported. | |
2891 | The optional fifth argument WIDTH, if specified, is a number of columns | |
2892 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
2893 | the WIDTH times as wide as FACE on FRAME. */) |
2894 | (pattern, face, frame, maximum, width) | |
82641697 GM |
2895 | Lisp_Object pattern, face, frame, maximum, width; |
2896 | { | |
2897 | struct frame *f; | |
2898 | int size; | |
2899 | int maxnames; | |
2900 | ||
2901 | check_x (); | |
b7826503 | 2902 | CHECK_STRING (pattern); |
178c5d9c | 2903 | |
82641697 | 2904 | if (NILP (maximum)) |
ee5be7c3 | 2905 | maxnames = -1; |
82641697 GM |
2906 | else |
2907 | { | |
b7826503 | 2908 | CHECK_NATNUM (maximum); |
82641697 GM |
2909 | maxnames = XINT (maximum); |
2910 | } | |
2911 | ||
2912 | if (!NILP (width)) | |
b7826503 | 2913 | CHECK_NUMBER (width); |
82641697 GM |
2914 | |
2915 | /* We can't simply call check_x_frame because this function may be | |
2916 | called before any frame is created. */ | |
2917 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 2918 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
2919 | { |
2920 | /* Perhaps we have not yet created any frame. */ | |
2921 | f = NULL; | |
2922 | face = Qnil; | |
2923 | } | |
2924 | ||
2925 | /* Determine the width standard for comparison with the fonts we find. */ | |
2926 | ||
2927 | if (NILP (face)) | |
2928 | size = 0; | |
2929 | else | |
2930 | { | |
2931 | /* This is of limited utility since it works with character | |
2932 | widths. Keep it for compatibility. --gerd. */ | |
39506348 | 2933 | int face_id = lookup_named_face (f, face, 0); |
b5de343d GM |
2934 | struct face *face = (face_id < 0 |
2935 | ? NULL | |
2936 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 2937 | |
b5de343d | 2938 | if (face && face->font) |
c3cee013 | 2939 | size = FONT_WIDTH (face->font); |
82641697 | 2940 | else |
c3cee013 | 2941 | size = FONT_WIDTH (FRAME_FONT (f)); |
82641697 GM |
2942 | |
2943 | if (!NILP (width)) | |
2944 | size *= XINT (width); | |
2945 | } | |
2946 | ||
2947 | { | |
2948 | Lisp_Object args[2]; | |
2949 | ||
2950 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2951 | if (f == NULL) | |
2952 | /* We don't have to check fontsets. */ | |
2953 | return args[0]; | |
2954 | args[1] = list_fontsets (f, pattern, size); | |
2955 | return Fnconc (2, args); | |
2956 | } | |
2957 | } | |
2958 | ||
c3cee013 | 2959 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2960 | |
2961 | ||
2962 | \f | |
2963 | /*********************************************************************** | |
2964 | Lisp Faces | |
2965 | ***********************************************************************/ | |
2966 | ||
a08332c0 GM |
2967 | /* Access face attributes of face LFACE, a Lisp vector. */ |
2968 | ||
2969 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
2970 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
2971 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
2972 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
2973 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
2974 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
2975 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
2976 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
2977 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
2978 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
2979 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
2980 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
2981 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
2982 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
2983 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
2984 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
82641697 GM |
2985 | |
2986 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2987 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2988 | ||
2989 | #define LFACEP(LFACE) \ | |
2990 | (VECTORP (LFACE) \ | |
2991 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 2992 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 2993 | |
178c5d9c | 2994 | |
82641697 GM |
2995 | #if GLYPH_DEBUG |
2996 | ||
2997 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2998 | ||
2999 | static void | |
3000 | check_lface_attrs (attrs) | |
3001 | Lisp_Object *attrs; | |
3002 | { | |
3003 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
3004 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
3005 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
3006 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
a08332c0 GM |
3007 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
3008 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); | |
82641697 | 3009 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
3010 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
3011 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
3012 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
3013 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
3014 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
3015 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
3016 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
3017 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
3018 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
3019 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3020 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
3021 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
3022 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3023 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
3024 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
3025 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3026 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
3027 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
3028 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3029 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3030 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3031 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
3032 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
3033 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
3034 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
3035 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
3036 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2c20458f MB |
3037 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
3038 | || NILP (attrs[LFACE_INHERIT_INDEX]) | |
3039 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3040 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3041 | #ifdef HAVE_WINDOW_SYSTEM |
3042 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
3043 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 3044 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3045 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
3046 | || NILP (attrs[LFACE_FONT_INDEX]) |
3047 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
3048 | #endif |
3049 | } | |
3050 | ||
3051 | ||
3052 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3053 | ||
3054 | static void | |
3055 | check_lface (lface) | |
3056 | Lisp_Object lface; | |
3057 | { | |
3058 | if (!NILP (lface)) | |
3059 | { | |
3060 | xassert (LFACEP (lface)); | |
3061 | check_lface_attrs (XVECTOR (lface)->contents); | |
3062 | } | |
3063 | } | |
3064 | ||
3065 | #else /* GLYPH_DEBUG == 0 */ | |
3066 | ||
3067 | #define check_lface_attrs(attrs) (void) 0 | |
3068 | #define check_lface(lface) (void) 0 | |
3069 | ||
3070 | #endif /* GLYPH_DEBUG == 0 */ | |
3071 | ||
3072 | ||
39506348 | 3073 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
c7ae3284 GM |
3074 | to make it a symvol. If FACE_NAME is an alias for another face, |
3075 | return that face's name. */ | |
3076 | ||
3077 | static Lisp_Object | |
3078 | resolve_face_name (face_name) | |
3079 | Lisp_Object face_name; | |
3080 | { | |
3081 | Lisp_Object aliased; | |
178c5d9c | 3082 | |
c7ae3284 | 3083 | if (STRINGP (face_name)) |
d5db4077 | 3084 | face_name = intern (SDATA (face_name)); |
c7ae3284 | 3085 | |
906b3b14 | 3086 | while (SYMBOLP (face_name)) |
c7ae3284 GM |
3087 | { |
3088 | aliased = Fget (face_name, Qface_alias); | |
3089 | if (NILP (aliased)) | |
3090 | break; | |
3091 | else | |
3092 | face_name = aliased; | |
3093 | } | |
3094 | ||
3095 | return face_name; | |
3096 | } | |
3097 | ||
3098 | ||
82641697 | 3099 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3100 | return the definition for new frames. FACE_NAME may be a string or |
3101 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3102 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3103 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3104 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3105 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3106 | name. */ | |
82641697 GM |
3107 | |
3108 | static INLINE Lisp_Object | |
3109 | lface_from_face_name (f, face_name, signal_p) | |
3110 | struct frame *f; | |
3111 | Lisp_Object face_name; | |
3112 | int signal_p; | |
3113 | { | |
c7ae3284 | 3114 | Lisp_Object lface; |
82641697 | 3115 | |
c7ae3284 | 3116 | face_name = resolve_face_name (face_name); |
92610620 | 3117 | |
82641697 GM |
3118 | if (f) |
3119 | lface = assq_no_quit (face_name, f->face_alist); | |
3120 | else | |
3121 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3122 | ||
3123 | if (CONSP (lface)) | |
3124 | lface = XCDR (lface); | |
3125 | else if (signal_p) | |
3126 | signal_error ("Invalid face", face_name); | |
3127 | ||
3128 | check_lface (lface); | |
3129 | return lface; | |
3130 | } | |
3131 | ||
3132 | ||
3133 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
3134 | frame F. Store the resulting attributes in ATTRS which must point | |
3135 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3136 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3137 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3138 | ||
3139 | static INLINE int | |
3140 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3141 | struct frame *f; | |
3142 | Lisp_Object face_name; | |
3143 | Lisp_Object *attrs; | |
3144 | int signal_p; | |
3145 | { | |
3146 | Lisp_Object lface; | |
3147 | int success_p; | |
3148 | ||
3149 | lface = lface_from_face_name (f, face_name, signal_p); | |
3150 | if (!NILP (lface)) | |
3151 | { | |
3152 | bcopy (XVECTOR (lface)->contents, attrs, | |
3153 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3154 | success_p = 1; | |
3155 | } | |
3156 | else | |
3157 | success_p = 0; | |
3158 | ||
3159 | return success_p; | |
3160 | } | |
3161 | ||
3162 | ||
3163 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
3164 | specified, i.e. are non-nil. */ | |
3165 | ||
3166 | static int | |
3167 | lface_fully_specified_p (attrs) | |
3168 | Lisp_Object *attrs; | |
3169 | { | |
3170 | int i; | |
3171 | ||
3172 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 GM |
3173 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
3174 | && i != LFACE_AVGWIDTH_INDEX) | |
177c0ea7 | 3175 | if (UNSPECIFIEDP (attrs[i])) |
6288c62f | 3176 | break; |
82641697 GM |
3177 | |
3178 | return i == LFACE_VECTOR_SIZE; | |
3179 | } | |
3180 | ||
c3cee013 | 3181 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3182 | |
39506348 KH |
3183 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3184 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3185 | unspecified attributes of LFACE. The exception is `font' | |
3186 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3187 | ||
3188 | If FONTNAME is not available on frame F, | |
3189 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3190 | If the fullname is not in a valid XLFD format, | |
3191 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3192 | in LFACE and return 1. | |
3193 | Otherwise, return 1. */ | |
178c5d9c | 3194 | |
82641697 | 3195 | static int |
39506348 | 3196 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3197 | struct frame *f; |
3198 | Lisp_Object lface; | |
39506348 | 3199 | Lisp_Object fontname; |
3221576b | 3200 | int force_p, may_fail_p; |
82641697 GM |
3201 | { |
3202 | struct font_name font; | |
3203 | char *buffer; | |
3204 | int pt; | |
39506348 KH |
3205 | int have_xlfd_p; |
3206 | int fontset; | |
d5db4077 | 3207 | char *font_name = SDATA (fontname); |
39506348 | 3208 | struct font_info *font_info; |
82641697 | 3209 | |
39506348 KH |
3210 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3211 | fontset = fs_query_fontset (fontname, 0); | |
3212 | if (fontset >= 0) | |
d5db4077 | 3213 | font_name = SDATA (fontset_ascii (fontset)); |
39506348 KH |
3214 | |
3215 | /* Check if FONT_NAME is surely available on the system. Usually | |
3216 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3217 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3218 | caching it now is not futail because we anyway load the font | |
3219 | later. */ | |
3220 | BLOCK_INPUT; | |
3221 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
3222 | UNBLOCK_INPUT; | |
82641697 | 3223 | |
39506348 | 3224 | if (!font_info) |
3221576b GM |
3225 | { |
3226 | if (may_fail_p) | |
3227 | return 0; | |
39506348 | 3228 | abort (); |
3221576b | 3229 | } |
39506348 KH |
3230 | |
3231 | font.name = STRDUPA (font_info->full_name); | |
3232 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3233 | |
82641697 | 3234 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3235 | new frames would never take effect. If we couldn't get a font |
3236 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3237 | |
82641697 GM |
3238 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3239 | { | |
39506348 KH |
3240 | Lisp_Object val; |
3241 | if (have_xlfd_p) | |
3242 | { | |
3243 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3244 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3245 | + 2); | |
3246 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3247 | font.fields[XLFD_FAMILY]); | |
3248 | val = build_string (buffer); | |
3249 | } | |
3250 | else | |
3251 | val = build_string ("*"); | |
3252 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3253 | } |
3254 | ||
3255 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3256 | { | |
39506348 KH |
3257 | if (have_xlfd_p) |
3258 | pt = xlfd_point_size (f, &font); | |
3259 | else | |
3260 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3261 | xassert (pt > 0); |
3262 | LFACE_HEIGHT (lface) = make_number (pt); | |
3263 | } | |
3264 | ||
3265 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3266 | LFACE_SWIDTH (lface) |
3267 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3268 | |
a08332c0 GM |
3269 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3270 | LFACE_AVGWIDTH (lface) | |
3271 | = (have_xlfd_p | |
3272 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3273 | : Qunspecified); | |
3274 | ||
82641697 | 3275 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3276 | LFACE_WEIGHT (lface) |
3277 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3278 | |
3279 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3280 | LFACE_SLANT (lface) |
3281 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3282 | |
39506348 | 3283 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3284 | |
82641697 GM |
3285 | return 1; |
3286 | } | |
d12d0a9b | 3287 | |
c3cee013 | 3288 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3289 | |
3290 | ||
2c20458f MB |
3291 | /* Merges the face height FROM with the face height TO, and returns the |
3292 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3293 | returned instead. FROM and TO may be either absolute face heights or |
3294 | `relative' heights; the returned value is always an absolute height | |
3295 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3296 | will be protected from garbage-collection if this function makes a | |
3297 | call into lisp. */ | |
2c20458f MB |
3298 | |
3299 | Lisp_Object | |
3300 | merge_face_heights (from, to, invalid, gcpro) | |
3301 | Lisp_Object from, to, invalid, gcpro; | |
3302 | { | |
cdfaafa9 | 3303 | Lisp_Object result = invalid; |
2c20458f MB |
3304 | |
3305 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3306 | /* FROM is absolute, just use it as is. */ |
3307 | result = from; | |
3308 | else if (FLOATP (from)) | |
3309 | /* FROM is a scale, use it to adjust TO. */ | |
3310 | { | |
3311 | if (INTEGERP (to)) | |
3312 | /* relative X absolute => absolute */ | |
c319cf24 | 3313 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3314 | else if (FLOATP (to)) |
3315 | /* relative X relative => relative */ | |
3316 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
2c20458f | 3317 | } |
2c20458f | 3318 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3319 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3320 | { |
3321 | /* Call function with current height as argument. | |
3322 | From is the new height. */ | |
cdfaafa9 | 3323 | Lisp_Object args[2]; |
2c20458f MB |
3324 | struct gcpro gcpro1; |
3325 | ||
3326 | GCPRO1 (gcpro); | |
3327 | ||
3328 | args[0] = from; | |
3329 | args[1] = to; | |
cdfaafa9 | 3330 | result = safe_call (2, args); |
2c20458f MB |
3331 | |
3332 | UNGCPRO; | |
3333 | ||
cdfaafa9 MB |
3334 | /* Ensure that if TO was absolute, so is the result. */ |
3335 | if (INTEGERP (to) && !INTEGERP (result)) | |
3336 | result = invalid; | |
2c20458f MB |
3337 | } |
3338 | ||
cdfaafa9 | 3339 | return result; |
2c20458f MB |
3340 | } |
3341 | ||
3342 | ||
3343 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3344 | store the resulting attributes in TO, which must be already be |
3345 | completely specified and contain only absolute attributes. Every | |
3346 | specified attribute of FROM overrides the corresponding attribute of | |
3347 | TO; relative attributes in FROM are merged with the absolute value in | |
3348 | TO and replace it. CYCLE_CHECK is used internally to detect loops in | |
3349 | face inheritance; it should be Qnil when called from other places. */ | |
82641697 GM |
3350 | |
3351 | static INLINE void | |
2c20458f MB |
3352 | merge_face_vectors (f, from, to, cycle_check) |
3353 | struct frame *f; | |
82641697 | 3354 | Lisp_Object *from, *to; |
2c20458f | 3355 | Lisp_Object cycle_check; |
82641697 GM |
3356 | { |
3357 | int i; | |
2c20458f MB |
3358 | |
3359 | /* If FROM inherits from some other faces, merge their attributes into | |
3360 | TO before merging FROM's direct attributes. Note that an :inherit | |
3361 | attribute of `unspecified' is the same as one of nil; we never | |
3362 | merge :inherit attributes, so nil is more correct, but lots of | |
3363 | other code uses `unspecified' as a generic value for face attributes. */ | |
3364 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3365 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
3366 | merge_face_inheritance (f, from[LFACE_INHERIT_INDEX], to, cycle_check); | |
3367 | ||
87188200 MB |
3368 | /* If TO specifies a :font attribute, and FROM specifies some |
3369 | font-related attribute, we need to clear TO's :font attribute | |
3370 | (because it will be inconsistent with whatever FROM specifies, and | |
3371 | FROM takes precedence). */ | |
3372 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3373 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3374 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3375 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3376 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3377 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3378 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3379 | to[LFACE_FONT_INDEX] = Qnil; |
3380 | ||
82641697 GM |
3381 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3382 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3383 | { |
3384 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
3385 | to[i] = merge_face_heights (from[i], to[i], to[i], cycle_check); | |
3386 | else | |
3387 | to[i] = from[i]; | |
3388 | } | |
2c20458f MB |
3389 | |
3390 | /* TO is always an absolute face, which should inherit from nothing. | |
3391 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3392 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3393 | } | |
3394 | ||
6288c62f | 3395 | |
2c20458f MB |
3396 | /* Checks the `cycle check' variable CHECK to see if it indicates that |
3397 | EL is part of a cycle; CHECK must be either Qnil or a value returned | |
3398 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of | |
3399 | elements after which a cycle might be suspected; after that many | |
3400 | elements, this macro begins consing in order to keep more precise | |
3401 | track of elements. | |
3402 | ||
f0529b5b | 3403 | Returns nil if a cycle was detected, otherwise a new value for CHECK |
2c20458f MB |
3404 | that includes EL. |
3405 | ||
3406 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so | |
3407 | the caller should make sure that's ok. */ | |
6288c62f | 3408 | |
28e6fb66 GM |
3409 | #define CYCLE_CHECK(check, el, suspicious) \ |
3410 | (NILP (check) \ | |
3411 | ? make_number (0) \ | |
3412 | : (INTEGERP (check) \ | |
3413 | ? (XFASTINT (check) < (suspicious) \ | |
3414 | ? make_number (XFASTINT (check) + 1) \ | |
3415 | : Fcons (el, Qnil)) \ | |
3416 | : (!NILP (Fmemq ((el), (check))) \ | |
3417 | ? Qnil \ | |
3418 | : Fcons ((el), (check))))) | |
2c20458f | 3419 | |
87188200 MB |
3420 | |
3421 | /* Merge face attributes from the face on frame F whose name is | |
3422 | INHERITS, into the vector of face attributes TO; INHERITS may also be | |
3423 | a list of face names, in which case they are applied in order. | |
3424 | CYCLE_CHECK is used to detect loops in face inheritance. | |
3425 | Returns true if any of the inherited attributes are `font-related'. */ | |
3426 | ||
2c20458f MB |
3427 | static void |
3428 | merge_face_inheritance (f, inherit, to, cycle_check) | |
3429 | struct frame *f; | |
3430 | Lisp_Object inherit; | |
3431 | Lisp_Object *to; | |
3432 | Lisp_Object cycle_check; | |
3433 | { | |
3434 | if (SYMBOLP (inherit) && !EQ (inherit, Qunspecified)) | |
3435 | /* Inherit from the named face INHERIT. */ | |
3436 | { | |
3437 | Lisp_Object lface; | |
3438 | ||
3439 | /* Make sure we're not in an inheritance loop. */ | |
3440 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3441 | if (NILP (cycle_check)) | |
3442 | /* Cycle detected, ignore any further inheritance. */ | |
3443 | return; | |
3444 | ||
3445 | lface = lface_from_face_name (f, inherit, 0); | |
3446 | if (!NILP (lface)) | |
3447 | merge_face_vectors (f, XVECTOR (lface)->contents, to, cycle_check); | |
3448 | } | |
3449 | else if (CONSP (inherit)) | |
3450 | /* Handle a list of inherited faces by calling ourselves recursively | |
3451 | on each element. Note that we only do so for symbol elements, so | |
3452 | it's not possible to infinitely recurse. */ | |
3453 | { | |
3454 | while (CONSP (inherit)) | |
3455 | { | |
3456 | if (SYMBOLP (XCAR (inherit))) | |
3457 | merge_face_inheritance (f, XCAR (inherit), to, cycle_check); | |
3458 | ||
3459 | /* Check for a circular inheritance list. */ | |
3460 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3461 | if (NILP (cycle_check)) | |
3462 | /* Cycle detected. */ | |
3463 | break; | |
3464 | ||
3465 | inherit = XCDR (inherit); | |
3466 | } | |
3467 | } | |
82641697 GM |
3468 | } |
3469 | ||
3470 | ||
3471 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
3472 | is a face property, determine the resulting face attributes on | |
3473 | frame F, and store them in TO. PROP may be a single face | |
3474 | specification or a list of such specifications. Each face | |
3475 | specification can be | |
3476 | ||
3477 | 1. A symbol or string naming a Lisp face. | |
3478 | ||
3479 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3480 | KEYWORD is a face attribute name, and value is an appropriate value | |
3481 | for that attribute. | |
3482 | ||
3483 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3484 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3485 | for compatibility with 20.2. | |
3486 | ||
3487 | Face specifications earlier in lists take precedence over later | |
3488 | specifications. */ | |
178c5d9c | 3489 | |
82641697 GM |
3490 | static void |
3491 | merge_face_vector_with_property (f, to, prop) | |
3492 | struct frame *f; | |
3493 | Lisp_Object *to; | |
3494 | Lisp_Object prop; | |
3495 | { | |
3496 | if (CONSP (prop)) | |
3497 | { | |
3498 | Lisp_Object first = XCAR (prop); | |
178c5d9c | 3499 | |
82641697 GM |
3500 | if (EQ (first, Qforeground_color) |
3501 | || EQ (first, Qbackground_color)) | |
3502 | { | |
3503 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3504 | . COLOR). COLOR must be a string. */ | |
3505 | Lisp_Object color_name = XCDR (prop); | |
3506 | Lisp_Object color = first; | |
3507 | ||
3508 | if (STRINGP (color_name)) | |
3509 | { | |
3510 | if (EQ (color, Qforeground_color)) | |
3511 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3512 | else | |
3513 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3514 | } | |
3515 | else | |
1b8f7fbc | 3516 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
3517 | } |
3518 | else if (SYMBOLP (first) | |
d5db4077 | 3519 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
3520 | { |
3521 | /* Assume this is the property list form. */ | |
3522 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
3523 | { | |
3524 | Lisp_Object keyword = XCAR (prop); | |
3525 | Lisp_Object value = XCAR (XCDR (prop)); | |
3526 | ||
3527 | if (EQ (keyword, QCfamily)) | |
3528 | { | |
3529 | if (STRINGP (value)) | |
3530 | to[LFACE_FAMILY_INDEX] = value; | |
3531 | else | |
1a948b17 | 3532 | add_to_log ("Invalid face font family", value, Qnil); |
82641697 GM |
3533 | } |
3534 | else if (EQ (keyword, QCheight)) | |
3535 | { | |
2c20458f MB |
3536 | Lisp_Object new_height = |
3537 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], | |
3538 | Qnil, Qnil); | |
3539 | ||
3540 | if (NILP (new_height)) | |
1a948b17 | 3541 | add_to_log ("Invalid face font height", value, Qnil); |
2c20458f MB |
3542 | else |
3543 | to[LFACE_HEIGHT_INDEX] = new_height; | |
82641697 GM |
3544 | } |
3545 | else if (EQ (keyword, QCweight)) | |
3546 | { | |
3547 | if (SYMBOLP (value) | |
3548 | && face_numeric_weight (value) >= 0) | |
3549 | to[LFACE_WEIGHT_INDEX] = value; | |
3550 | else | |
1a948b17 | 3551 | add_to_log ("Invalid face weight", value, Qnil); |
82641697 GM |
3552 | } |
3553 | else if (EQ (keyword, QCslant)) | |
3554 | { | |
3555 | if (SYMBOLP (value) | |
3556 | && face_numeric_slant (value) >= 0) | |
3557 | to[LFACE_SLANT_INDEX] = value; | |
3558 | else | |
1a948b17 | 3559 | add_to_log ("Invalid face slant", value, Qnil); |
82641697 GM |
3560 | } |
3561 | else if (EQ (keyword, QCunderline)) | |
3562 | { | |
3563 | if (EQ (value, Qt) | |
3564 | || NILP (value) | |
3565 | || STRINGP (value)) | |
3566 | to[LFACE_UNDERLINE_INDEX] = value; | |
3567 | else | |
1a948b17 | 3568 | add_to_log ("Invalid face underline", value, Qnil); |
82641697 GM |
3569 | } |
3570 | else if (EQ (keyword, QCoverline)) | |
3571 | { | |
3572 | if (EQ (value, Qt) | |
3573 | || NILP (value) | |
3574 | || STRINGP (value)) | |
3575 | to[LFACE_OVERLINE_INDEX] = value; | |
3576 | else | |
1a948b17 | 3577 | add_to_log ("Invalid face overline", value, Qnil); |
82641697 GM |
3578 | } |
3579 | else if (EQ (keyword, QCstrike_through)) | |
3580 | { | |
3581 | if (EQ (value, Qt) | |
3582 | || NILP (value) | |
3583 | || STRINGP (value)) | |
3584 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3585 | else | |
1a948b17 | 3586 | add_to_log ("Invalid face strike-through", value, Qnil); |
82641697 GM |
3587 | } |
3588 | else if (EQ (keyword, QCbox)) | |
3589 | { | |
3590 | if (EQ (value, Qt)) | |
3591 | value = make_number (1); | |
3592 | if (INTEGERP (value) | |
3593 | || STRINGP (value) | |
3594 | || CONSP (value) | |
3595 | || NILP (value)) | |
3596 | to[LFACE_BOX_INDEX] = value; | |
3597 | else | |
1a948b17 | 3598 | add_to_log ("Invalid face box", value, Qnil); |
82641697 GM |
3599 | } |
3600 | else if (EQ (keyword, QCinverse_video) | |
3601 | || EQ (keyword, QCreverse_video)) | |
3602 | { | |
3603 | if (EQ (value, Qt) || NILP (value)) | |
3604 | to[LFACE_INVERSE_INDEX] = value; | |
3605 | else | |
1a948b17 | 3606 | add_to_log ("Invalid face inverse-video", value, Qnil); |
82641697 GM |
3607 | } |
3608 | else if (EQ (keyword, QCforeground)) | |
3609 | { | |
3610 | if (STRINGP (value)) | |
3611 | to[LFACE_FOREGROUND_INDEX] = value; | |
3612 | else | |
1a948b17 | 3613 | add_to_log ("Invalid face foreground", value, Qnil); |
82641697 GM |
3614 | } |
3615 | else if (EQ (keyword, QCbackground)) | |
3616 | { | |
3617 | if (STRINGP (value)) | |
3618 | to[LFACE_BACKGROUND_INDEX] = value; | |
3619 | else | |
1a948b17 | 3620 | add_to_log ("Invalid face background", value, Qnil); |
82641697 GM |
3621 | } |
3622 | else if (EQ (keyword, QCstipple)) | |
3623 | { | |
3624 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3625 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3626 | if (!NILP (pixmap_p)) |
3627 | to[LFACE_STIPPLE_INDEX] = value; | |
3628 | else | |
1a948b17 | 3629 | add_to_log ("Invalid face stipple", value, Qnil); |
82641697 GM |
3630 | #endif |
3631 | } | |
3632 | else if (EQ (keyword, QCwidth)) | |
3633 | { | |
3634 | if (SYMBOLP (value) | |
3635 | && face_numeric_swidth (value) >= 0) | |
3636 | to[LFACE_SWIDTH_INDEX] = value; | |
3637 | else | |
1a948b17 | 3638 | add_to_log ("Invalid face width", value, Qnil); |
82641697 | 3639 | } |
2c20458f MB |
3640 | else if (EQ (keyword, QCinherit)) |
3641 | { | |
3642 | if (SYMBOLP (value)) | |
3643 | to[LFACE_INHERIT_INDEX] = value; | |
3644 | else | |
3645 | { | |
3646 | Lisp_Object tail; | |
3647 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3648 | if (!SYMBOLP (XCAR (tail))) | |
3649 | break; | |
3650 | if (NILP (tail)) | |
3651 | to[LFACE_INHERIT_INDEX] = value; | |
3652 | else | |
3653 | add_to_log ("Invalid face inherit", value, Qnil); | |
3654 | } | |
3655 | } | |
82641697 | 3656 | else |
1b8f7fbc | 3657 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3658 | keyword, Qnil); |
82641697 GM |
3659 | |
3660 | prop = XCDR (XCDR (prop)); | |
3661 | } | |
3662 | } | |
3663 | else | |
3664 | { | |
3665 | /* This is a list of face specs. Specifications at the | |
3666 | beginning of the list take precedence over later | |
3667 | specifications, so we have to merge starting with the | |
3668 | last specification. */ | |
3669 | Lisp_Object next = XCDR (prop); | |
3670 | if (!NILP (next)) | |
3671 | merge_face_vector_with_property (f, to, next); | |
3672 | merge_face_vector_with_property (f, to, first); | |
3673 | } | |
3674 | } | |
3675 | else | |
3676 | { | |
3677 | /* PROP ought to be a face name. */ | |
3678 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3679 | if (NILP (lface)) | |
1b8f7fbc | 3680 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 | 3681 | else |
2c20458f | 3682 | merge_face_vectors (f, XVECTOR (lface)->contents, to, Qnil); |
82641697 GM |
3683 | } |
3684 | } | |
3685 | ||
3686 | ||
3687 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3688 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 3689 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
3690 | If FACE was not known as a face before, create a new one. |
3691 | If optional argument FRAME is specified, make a frame-local face | |
3692 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
3693 | Value is a vector of face attributes. */) |
3694 | (face, frame) | |
82641697 GM |
3695 | Lisp_Object face, frame; |
3696 | { | |
3697 | Lisp_Object global_lface, lface; | |
3698 | struct frame *f; | |
3699 | int i; | |
3700 | ||
b7826503 | 3701 | CHECK_SYMBOL (face); |
82641697 | 3702 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 3703 | |
82641697 GM |
3704 | if (!NILP (frame)) |
3705 | { | |
b7826503 | 3706 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3707 | f = XFRAME (frame); |
3708 | lface = lface_from_face_name (f, face, 0); | |
3709 | } | |
3710 | else | |
3711 | f = NULL, lface = Qnil; | |
3712 | ||
3713 | /* Add a global definition if there is none. */ | |
3714 | if (NILP (global_lface)) | |
3715 | { | |
3716 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3717 | Qunspecified); | |
a08332c0 | 3718 | AREF (global_lface, 0) = Qface; |
178c5d9c | 3719 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3720 | Vface_new_frame_defaults); |
178c5d9c | 3721 | |
82641697 GM |
3722 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3723 | face id to Lisp face is given by the vector lface_id_to_name. | |
3724 | The mapping from Lisp face to Lisp face id is given by the | |
3725 | property `face' of the Lisp face name. */ | |
3726 | if (next_lface_id == lface_id_to_name_size) | |
3727 | { | |
3728 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3729 | int sz = new_size * sizeof *lface_id_to_name; | |
3730 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3731 | lface_id_to_name_size = new_size; | |
3732 | } | |
178c5d9c | 3733 | |
82641697 GM |
3734 | lface_id_to_name[next_lface_id] = face; |
3735 | Fput (face, Qface, make_number (next_lface_id)); | |
3736 | ++next_lface_id; | |
3737 | } | |
3738 | else if (f == NULL) | |
3739 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3740 | AREF (global_lface, i) = Qunspecified; |
178c5d9c | 3741 | |
82641697 GM |
3742 | /* Add a frame-local definition. */ |
3743 | if (f) | |
3744 | { | |
3745 | if (NILP (lface)) | |
3746 | { | |
3747 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3748 | Qunspecified); | |
a08332c0 | 3749 | AREF (lface, 0) = Qface; |
82641697 GM |
3750 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
3751 | } | |
3752 | else | |
3753 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3754 | AREF (lface, i) = Qunspecified; |
82641697 GM |
3755 | } |
3756 | else | |
3757 | lface = global_lface; | |
3758 | ||
33565969 RS |
3759 | /* Changing a named face means that all realized faces depending on |
3760 | that face are invalid. Since we cannot tell which realized faces | |
3761 | depend on the face, make sure they are all removed. This is done | |
3762 | by incrementing face_change_count. The next call to | |
3763 | init_iterator will then free realized faces. */ | |
3764 | ++face_change_count; | |
3765 | ++windows_or_buffers_changed; | |
3766 | ||
82641697 GM |
3767 | xassert (LFACEP (lface)); |
3768 | check_lface (lface); | |
3769 | return lface; | |
3770 | } | |
3771 | ||
3772 | ||
3773 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3774 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 3775 | doc: /* Return non-nil if FACE names a face. |
228299fa GM |
3776 | If optional second parameter FRAME is non-nil, check for the |
3777 | existence of a frame-local face with name FACE on that frame. | |
7ee72033 MB |
3778 | Otherwise check for the existence of a global face. */) |
3779 | (face, frame) | |
82641697 GM |
3780 | Lisp_Object face, frame; |
3781 | { | |
3782 | Lisp_Object lface; | |
178c5d9c | 3783 | |
82641697 GM |
3784 | if (!NILP (frame)) |
3785 | { | |
b7826503 | 3786 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3787 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
3788 | } | |
3789 | else | |
3790 | lface = lface_from_face_name (NULL, face, 0); | |
3791 | ||
3792 | return lface; | |
3793 | } | |
3794 | ||
3795 | ||
3796 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3797 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 3798 | doc: /* Copy face FROM to TO. |
228299fa GM |
3799 | If FRAME it t, copy the global face definition of FROM to the |
3800 | global face definition of TO. Otherwise, copy the frame-local | |
3801 | definition of FROM on FRAME to the frame-local definition of TO | |
3802 | on NEW-FRAME, or FRAME if NEW-FRAME is nil. | |
3803 | ||
7ee72033 MB |
3804 | Value is TO. */) |
3805 | (from, to, frame, new_frame) | |
82641697 GM |
3806 | Lisp_Object from, to, frame, new_frame; |
3807 | { | |
3808 | Lisp_Object lface, copy; | |
178c5d9c | 3809 | |
b7826503 PJ |
3810 | CHECK_SYMBOL (from); |
3811 | CHECK_SYMBOL (to); | |
82641697 GM |
3812 | if (NILP (new_frame)) |
3813 | new_frame = frame; | |
3814 | ||
3815 | if (EQ (frame, Qt)) | |
3816 | { | |
3817 | /* Copy global definition of FROM. We don't make copies of | |
3818 | strings etc. because 20.2 didn't do it either. */ | |
3819 | lface = lface_from_face_name (NULL, from, 1); | |
3820 | copy = Finternal_make_lisp_face (to, Qnil); | |
3821 | } | |
3822 | else | |
3823 | { | |
3824 | /* Copy frame-local definition of FROM. */ | |
b7826503 PJ |
3825 | CHECK_LIVE_FRAME (frame); |
3826 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
3827 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
3828 | copy = Finternal_make_lisp_face (to, new_frame); | |
3829 | } | |
178c5d9c | 3830 | |
82641697 GM |
3831 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3832 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3833 | |
33565969 RS |
3834 | /* Changing a named face means that all realized faces depending on |
3835 | that face are invalid. Since we cannot tell which realized faces | |
3836 | depend on the face, make sure they are all removed. This is done | |
3837 | by incrementing face_change_count. The next call to | |
3838 | init_iterator will then free realized faces. */ | |
3839 | ++face_change_count; | |
3840 | ++windows_or_buffers_changed; | |
3841 | ||
82641697 GM |
3842 | return to; |
3843 | } | |
3844 | ||
3845 | ||
3846 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3847 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 3848 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
3849 | FRAME being a frame means change the face on that frame. |
3850 | FRAME nil means change the face of the selected frame. | |
3851 | FRAME t means change the default for new frames. | |
3852 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
3853 | for new frames. */) |
3854 | (face, attr, value, frame) | |
82641697 GM |
3855 | Lisp_Object face, attr, value, frame; |
3856 | { | |
3857 | Lisp_Object lface; | |
3858 | Lisp_Object old_value = Qnil; | |
39506348 KH |
3859 | /* Set 1 if ATTR is QCfont. */ |
3860 | int font_attr_p = 0; | |
3861 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 3862 | int font_related_attr_p = 0; |
178c5d9c | 3863 | |
b7826503 PJ |
3864 | CHECK_SYMBOL (face); |
3865 | CHECK_SYMBOL (attr); | |
82641697 | 3866 | |
c7ae3284 GM |
3867 | face = resolve_face_name (face); |
3868 | ||
628436fb GM |
3869 | /* If FRAME is 0, change face on all frames, and change the |
3870 | default for new frames. */ | |
3871 | if (INTEGERP (frame) && XINT (frame) == 0) | |
3872 | { | |
3873 | Lisp_Object tail; | |
d12d0a9b | 3874 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
3875 | FOR_EACH_FRAME (tail, frame) |
3876 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 3877 | return face; |
628436fb GM |
3878 | } |
3879 | ||
82641697 GM |
3880 | /* Set lface to the Lisp attribute vector of FACE. */ |
3881 | if (EQ (frame, Qt)) | |
3882 | lface = lface_from_face_name (NULL, face, 1); | |
3883 | else | |
3884 | { | |
3885 | if (NILP (frame)) | |
c0617987 | 3886 | frame = selected_frame; |
178c5d9c | 3887 | |
b7826503 | 3888 | CHECK_LIVE_FRAME (frame); |
82641697 | 3889 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 3890 | |
82641697 GM |
3891 | /* If a frame-local face doesn't exist yet, create one. */ |
3892 | if (NILP (lface)) | |
3893 | lface = Finternal_make_lisp_face (face, frame); | |
3894 | } | |
3895 | ||
3896 | if (EQ (attr, QCfamily)) | |
3897 | { | |
3898 | if (!UNSPECIFIEDP (value)) | |
3899 | { | |
b7826503 | 3900 | CHECK_STRING (value); |
d5db4077 | 3901 | if (SCHARS (value) == 0) |
82641697 GM |
3902 | signal_error ("Invalid face family", value); |
3903 | } | |
3904 | old_value = LFACE_FAMILY (lface); | |
3905 | LFACE_FAMILY (lface) = value; | |
3906 | font_related_attr_p = 1; | |
3907 | } | |
3908 | else if (EQ (attr, QCheight)) | |
3909 | { | |
3910 | if (!UNSPECIFIEDP (value)) | |
3911 | { | |
d8055bfc | 3912 | Lisp_Object test; |
2c20458f | 3913 | |
d8055bfc GM |
3914 | test = (EQ (face, Qdefault) |
3915 | ? value | |
3916 | /* The default face must have an absolute size, | |
3917 | otherwise, we do a test merge with a random | |
3918 | height to see if VALUE's ok. */ | |
3919 | : merge_face_heights (value, make_number (10), Qnil, Qnil)); | |
3920 | ||
3921 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
3922 | signal_error ("Invalid face height", value); |
3923 | } | |
2c20458f | 3924 | |
82641697 GM |
3925 | old_value = LFACE_HEIGHT (lface); |
3926 | LFACE_HEIGHT (lface) = value; | |
3927 | font_related_attr_p = 1; | |
3928 | } | |
3929 | else if (EQ (attr, QCweight)) | |
3930 | { | |
3931 | if (!UNSPECIFIEDP (value)) | |
3932 | { | |
b7826503 | 3933 | CHECK_SYMBOL (value); |
82641697 GM |
3934 | if (face_numeric_weight (value) < 0) |
3935 | signal_error ("Invalid face weight", value); | |
3936 | } | |
3937 | old_value = LFACE_WEIGHT (lface); | |
3938 | LFACE_WEIGHT (lface) = value; | |
3939 | font_related_attr_p = 1; | |
3940 | } | |
3941 | else if (EQ (attr, QCslant)) | |
3942 | { | |
3943 | if (!UNSPECIFIEDP (value)) | |
3944 | { | |
b7826503 | 3945 | CHECK_SYMBOL (value); |
82641697 GM |
3946 | if (face_numeric_slant (value) < 0) |
3947 | signal_error ("Invalid face slant", value); | |
3948 | } | |
3949 | old_value = LFACE_SLANT (lface); | |
3950 | LFACE_SLANT (lface) = value; | |
3951 | font_related_attr_p = 1; | |
3952 | } | |
3953 | else if (EQ (attr, QCunderline)) | |
3954 | { | |
3955 | if (!UNSPECIFIEDP (value)) | |
3956 | if ((SYMBOLP (value) | |
3957 | && !EQ (value, Qt) | |
3958 | && !EQ (value, Qnil)) | |
3959 | /* Underline color. */ | |
3960 | || (STRINGP (value) | |
d5db4077 | 3961 | && SCHARS (value) == 0)) |
82641697 | 3962 | signal_error ("Invalid face underline", value); |
178c5d9c | 3963 | |
82641697 GM |
3964 | old_value = LFACE_UNDERLINE (lface); |
3965 | LFACE_UNDERLINE (lface) = value; | |
3966 | } | |
3967 | else if (EQ (attr, QCoverline)) | |
3968 | { | |
3969 | if (!UNSPECIFIEDP (value)) | |
3970 | if ((SYMBOLP (value) | |
3971 | && !EQ (value, Qt) | |
3972 | && !EQ (value, Qnil)) | |
3973 | /* Overline color. */ | |
3974 | || (STRINGP (value) | |
d5db4077 | 3975 | && SCHARS (value) == 0)) |
82641697 | 3976 | signal_error ("Invalid face overline", value); |
178c5d9c | 3977 | |
82641697 GM |
3978 | old_value = LFACE_OVERLINE (lface); |
3979 | LFACE_OVERLINE (lface) = value; | |
3980 | } | |
3981 | else if (EQ (attr, QCstrike_through)) | |
3982 | { | |
3983 | if (!UNSPECIFIEDP (value)) | |
3984 | if ((SYMBOLP (value) | |
3985 | && !EQ (value, Qt) | |
3986 | && !EQ (value, Qnil)) | |
3987 | /* Strike-through color. */ | |
3988 | || (STRINGP (value) | |
d5db4077 | 3989 | && SCHARS (value) == 0)) |
82641697 | 3990 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 3991 | |
82641697 GM |
3992 | old_value = LFACE_STRIKE_THROUGH (lface); |
3993 | LFACE_STRIKE_THROUGH (lface) = value; | |
3994 | } | |
3995 | else if (EQ (attr, QCbox)) | |
3996 | { | |
3997 | int valid_p; | |
178c5d9c | 3998 | |
82641697 GM |
3999 | /* Allow t meaning a simple box of width 1 in foreground color |
4000 | of the face. */ | |
4001 | if (EQ (value, Qt)) | |
4002 | value = make_number (1); | |
4003 | ||
4004 | if (UNSPECIFIEDP (value)) | |
4005 | valid_p = 1; | |
4006 | else if (NILP (value)) | |
4007 | valid_p = 1; | |
4008 | else if (INTEGERP (value)) | |
89624b8b | 4009 | valid_p = XINT (value) != 0; |
82641697 | 4010 | else if (STRINGP (value)) |
d5db4077 | 4011 | valid_p = SCHARS (value) > 0; |
82641697 GM |
4012 | else if (CONSP (value)) |
4013 | { | |
4014 | Lisp_Object tem; | |
178c5d9c | 4015 | |
82641697 GM |
4016 | tem = value; |
4017 | while (CONSP (tem)) | |
4018 | { | |
4019 | Lisp_Object k, v; | |
4020 | ||
4021 | k = XCAR (tem); | |
4022 | tem = XCDR (tem); | |
4023 | if (!CONSP (tem)) | |
4024 | break; | |
4025 | v = XCAR (tem); | |
4026 | tem = XCDR (tem); | |
178c5d9c | 4027 | |
82641697 GM |
4028 | if (EQ (k, QCline_width)) |
4029 | { | |
89624b8b | 4030 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4031 | break; |
4032 | } | |
4033 | else if (EQ (k, QCcolor)) | |
4034 | { | |
d5db4077 | 4035 | if (!STRINGP (v) || SCHARS (v) == 0) |
82641697 GM |
4036 | break; |
4037 | } | |
4038 | else if (EQ (k, QCstyle)) | |
4039 | { | |
4040 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4041 | break; | |
4042 | } | |
4043 | else | |
4044 | break; | |
4045 | } | |
4046 | ||
4047 | valid_p = NILP (tem); | |
4048 | } | |
4049 | else | |
4050 | valid_p = 0; | |
4051 | ||
4052 | if (!valid_p) | |
4053 | signal_error ("Invalid face box", value); | |
178c5d9c | 4054 | |
82641697 GM |
4055 | old_value = LFACE_BOX (lface); |
4056 | LFACE_BOX (lface) = value; | |
4057 | } | |
4058 | else if (EQ (attr, QCinverse_video) | |
4059 | || EQ (attr, QCreverse_video)) | |
4060 | { | |
4061 | if (!UNSPECIFIEDP (value)) | |
4062 | { | |
b7826503 | 4063 | CHECK_SYMBOL (value); |
82641697 GM |
4064 | if (!EQ (value, Qt) && !NILP (value)) |
4065 | signal_error ("Invalid inverse-video face attribute value", value); | |
4066 | } | |
4067 | old_value = LFACE_INVERSE (lface); | |
4068 | LFACE_INVERSE (lface) = value; | |
4069 | } | |
4070 | else if (EQ (attr, QCforeground)) | |
4071 | { | |
ef917393 | 4072 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4073 | { |
4074 | /* Don't check for valid color names here because it depends | |
4075 | on the frame (display) whether the color will be valid | |
4076 | when the face is realized. */ | |
b7826503 | 4077 | CHECK_STRING (value); |
d5db4077 | 4078 | if (SCHARS (value) == 0) |
82641697 GM |
4079 | signal_error ("Empty foreground color value", value); |
4080 | } | |
4081 | old_value = LFACE_FOREGROUND (lface); | |
4082 | LFACE_FOREGROUND (lface) = value; | |
4083 | } | |
4084 | else if (EQ (attr, QCbackground)) | |
4085 | { | |
ef917393 | 4086 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4087 | { |
4088 | /* Don't check for valid color names here because it depends | |
4089 | on the frame (display) whether the color will be valid | |
4090 | when the face is realized. */ | |
b7826503 | 4091 | CHECK_STRING (value); |
d5db4077 | 4092 | if (SCHARS (value) == 0) |
82641697 GM |
4093 | signal_error ("Empty background color value", value); |
4094 | } | |
4095 | old_value = LFACE_BACKGROUND (lface); | |
4096 | LFACE_BACKGROUND (lface) = value; | |
4097 | } | |
4098 | else if (EQ (attr, QCstipple)) | |
4099 | { | |
4100 | #ifdef HAVE_X_WINDOWS | |
4101 | if (!UNSPECIFIEDP (value) | |
4102 | && !NILP (value) | |
fef04523 | 4103 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4104 | signal_error ("Invalid stipple attribute", value); |
4105 | old_value = LFACE_STIPPLE (lface); | |
4106 | LFACE_STIPPLE (lface) = value; | |
4107 | #endif /* HAVE_X_WINDOWS */ | |
4108 | } | |
4109 | else if (EQ (attr, QCwidth)) | |
4110 | { | |
4111 | if (!UNSPECIFIEDP (value)) | |
4112 | { | |
b7826503 | 4113 | CHECK_SYMBOL (value); |
82641697 GM |
4114 | if (face_numeric_swidth (value) < 0) |
4115 | signal_error ("Invalid face width", value); | |
4116 | } | |
4117 | old_value = LFACE_SWIDTH (lface); | |
4118 | LFACE_SWIDTH (lface) = value; | |
4119 | font_related_attr_p = 1; | |
4120 | } | |
4121 | else if (EQ (attr, QCfont)) | |
4122 | { | |
c3cee013 | 4123 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 4124 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4125 | { |
4126 | /* Set font-related attributes of the Lisp face from an XLFD | |
4127 | font name. */ | |
4128 | struct frame *f; | |
4129 | Lisp_Object tmp; | |
82641697 | 4130 | |
b7826503 | 4131 | CHECK_STRING (value); |
96fbd2c6 EZ |
4132 | if (EQ (frame, Qt)) |
4133 | f = SELECTED_FRAME (); | |
4134 | else | |
4135 | f = check_x_frame (frame); | |
178c5d9c | 4136 | |
96fbd2c6 EZ |
4137 | /* VALUE may be a fontset name or an alias of fontset. In |
4138 | such a case, use the base fontset name. */ | |
4139 | tmp = Fquery_fontset (value, Qnil); | |
4140 | if (!NILP (tmp)) | |
4141 | value = tmp; | |
39506348 | 4142 | |
96fbd2c6 EZ |
4143 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) |
4144 | signal_error ("Invalid font or fontset name", value); | |
39506348 | 4145 | |
96fbd2c6 EZ |
4146 | font_attr_p = 1; |
4147 | } | |
c3cee013 | 4148 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4149 | } |
2c20458f MB |
4150 | else if (EQ (attr, QCinherit)) |
4151 | { | |
4152 | Lisp_Object tail; | |
4153 | if (SYMBOLP (value)) | |
4154 | tail = Qnil; | |
4155 | else | |
4156 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4157 | if (!SYMBOLP (XCAR (tail))) | |
4158 | break; | |
4159 | if (NILP (tail)) | |
4160 | LFACE_INHERIT (lface) = value; | |
4161 | else | |
6288c62f | 4162 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4163 | } |
82641697 GM |
4164 | else if (EQ (attr, QCbold)) |
4165 | { | |
4166 | old_value = LFACE_WEIGHT (lface); | |
4167 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4168 | font_related_attr_p = 1; | |
4169 | } | |
4170 | else if (EQ (attr, QCitalic)) | |
4171 | { | |
4172 | old_value = LFACE_SLANT (lface); | |
4173 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4174 | font_related_attr_p = 1; | |
4175 | } | |
4176 | else | |
4177 | signal_error ("Invalid face attribute name", attr); | |
4178 | ||
39506348 KH |
4179 | if (font_related_attr_p |
4180 | && !UNSPECIFIEDP (value)) | |
4181 | /* If a font-related attribute other than QCfont is specified, the | |
4182 | original `font' attribute nor that of default face is useless | |
4183 | to determine a new font. Thus, we set it to nil so that font | |
4184 | selection mechanism doesn't use it. */ | |
4185 | LFACE_FONT (lface) = Qnil; | |
4186 | ||
82641697 GM |
4187 | /* Changing a named face means that all realized faces depending on |
4188 | that face are invalid. Since we cannot tell which realized faces | |
4189 | depend on the face, make sure they are all removed. This is done | |
4190 | by incrementing face_change_count. The next call to | |
4191 | init_iterator will then free realized faces. */ | |
4192 | if (!EQ (frame, Qt) | |
4193 | && (EQ (attr, QCfont) | |
4194 | || NILP (Fequal (old_value, value)))) | |
4195 | { | |
4196 | ++face_change_count; | |
4197 | ++windows_or_buffers_changed; | |
4198 | } | |
4199 | ||
0eb2ecde | 4200 | if (!UNSPECIFIEDP (value) |
82641697 | 4201 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4202 | { |
4203 | Lisp_Object param; | |
4204 | ||
4205 | param = Qnil; | |
178c5d9c | 4206 | |
8bd201d6 GM |
4207 | if (EQ (face, Qdefault)) |
4208 | { | |
b9c769f8 | 4209 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4210 | /* Changed font-related attributes of the `default' face are |
4211 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4212 | if (FRAMEP (frame) |
4213 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4214 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4215 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4216 | else |
4217 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4218 | ||
4219 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4220 | param = Qforeground_color; |
4221 | else if (EQ (attr, QCbackground)) | |
4222 | param = Qbackground_color; | |
4223 | } | |
b9c769f8 | 4224 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4225 | #ifndef WINDOWSNT |
8bd201d6 GM |
4226 | else if (EQ (face, Qscroll_bar)) |
4227 | { | |
4228 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4229 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4230 | if (EQ (attr, QCforeground)) | |
4231 | param = Qscroll_bar_foreground; | |
4232 | else if (EQ (attr, QCbackground)) | |
4233 | param = Qscroll_bar_background; | |
4234 | } | |
d12d0a9b | 4235 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4236 | else if (EQ (face, Qborder)) |
4237 | { | |
4238 | /* Changing background color of `border' sets frame parameter | |
4239 | `border-color'. */ | |
4240 | if (EQ (attr, QCbackground)) | |
4241 | param = Qborder_color; | |
4242 | } | |
4243 | else if (EQ (face, Qcursor)) | |
4244 | { | |
4245 | /* Changing background color of `cursor' sets frame parameter | |
4246 | `cursor-color'. */ | |
4247 | if (EQ (attr, QCbackground)) | |
4248 | param = Qcursor_color; | |
4249 | } | |
4250 | else if (EQ (face, Qmouse)) | |
4251 | { | |
4252 | /* Changing background color of `mouse' sets frame parameter | |
4253 | `mouse-color'. */ | |
4254 | if (EQ (attr, QCbackground)) | |
4255 | param = Qmouse_color; | |
4256 | } | |
b9c769f8 | 4257 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4258 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4259 | { |
4260 | /* Indicate that we have to update the menu bar when | |
4261 | realizing faces on FRAME. FRAME t change the | |
4262 | default for new frames. We do this by setting | |
4263 | setting the flag in new face caches */ | |
4264 | if (FRAMEP (frame)) | |
4265 | { | |
4266 | struct frame *f = XFRAME (frame); | |
4267 | if (FRAME_FACE_CACHE (f) == NULL) | |
4268 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4269 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4270 | } | |
4271 | else | |
4272 | menu_face_changed_default = 1; | |
4273 | } | |
8bd201d6 | 4274 | |
39506348 | 4275 | if (!NILP (param)) |
ab8469eb PJ |
4276 | { |
4277 | if (EQ (frame, Qt)) | |
4278 | /* Update `default-frame-alist', which is used for new frames. */ | |
4279 | { | |
4280 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4281 | } | |
4282 | else | |
4283 | /* Update the current frame's parameters. */ | |
4284 | { | |
4285 | Lisp_Object cons; | |
4286 | cons = XCAR (Vparam_value_alist); | |
4287 | XSETCAR (cons, param); | |
4288 | XSETCDR (cons, value); | |
4289 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4290 | } | |
4291 | } | |
8bd201d6 | 4292 | } |
82641697 | 4293 | |
82641697 GM |
4294 | return face; |
4295 | } | |
4296 | ||
4297 | ||
c3cee013 | 4298 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4299 | |
39506348 KH |
4300 | /* Set the `font' frame parameter of FRAME determined from `default' |
4301 | face attributes LFACE. If a face or fontset name is explicitely | |
4302 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4303 | from the other font-related atrributes of LFACE. In that case, if | |
4304 | there's no matching font, signals an error. */ | |
82641697 GM |
4305 | |
4306 | static void | |
4307 | set_font_frame_param (frame, lface) | |
4308 | Lisp_Object frame, lface; | |
4309 | { | |
4310 | struct frame *f = XFRAME (frame); | |
82641697 | 4311 | |
482cca61 | 4312 | if (FRAME_WINDOW_P (f)) |
82641697 | 4313 | { |
482cca61 GM |
4314 | Lisp_Object font_name; |
4315 | char *font; | |
177c0ea7 | 4316 | |
482cca61 GM |
4317 | if (STRINGP (LFACE_FONT (lface))) |
4318 | font_name = LFACE_FONT (lface); | |
4319 | else | |
4320 | { | |
4321 | /* Choose a font name that reflects LFACE's attributes and has | |
4322 | the registry and encoding pattern specified in the default | |
4323 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
6ae2cd57 | 4324 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0, 0); |
482cca61 GM |
4325 | if (!font) |
4326 | error ("No font matches the specified attribute"); | |
4327 | font_name = build_string (font); | |
4328 | xfree (font); | |
4329 | } | |
177c0ea7 | 4330 | |
482cca61 GM |
4331 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4332 | } | |
82641697 GM |
4333 | } |
4334 | ||
4335 | ||
8bd201d6 GM |
4336 | /* Update the corresponding face when frame parameter PARAM on frame F |
4337 | has been assigned the value NEW_VALUE. */ | |
4338 | ||
4339 | void | |
4340 | update_face_from_frame_parameter (f, param, new_value) | |
4341 | struct frame *f; | |
4342 | Lisp_Object param, new_value; | |
4343 | { | |
4344 | Lisp_Object lface; | |
4345 | ||
4346 | /* If there are no faces yet, give up. This is the case when called | |
4347 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4348 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4349 | if (NILP (f->face_alist)) |
4350 | return; | |
178c5d9c | 4351 | |
33565969 RS |
4352 | /* Changing a named face means that all realized faces depending on |
4353 | that face are invalid. Since we cannot tell which realized faces | |
4354 | depend on the face, make sure they are all removed. This is done | |
4355 | by incrementing face_change_count. The next call to | |
4356 | init_iterator will then free realized faces. */ | |
4357 | ++face_change_count; | |
4358 | ++windows_or_buffers_changed; | |
4359 | ||
8bd201d6 GM |
4360 | if (EQ (param, Qforeground_color)) |
4361 | { | |
4362 | lface = lface_from_face_name (f, Qdefault, 1); | |
4363 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
4364 | ? new_value : Qunspecified); | |
4365 | realize_basic_faces (f); | |
4366 | } | |
4367 | else if (EQ (param, Qbackground_color)) | |
4368 | { | |
92610620 GM |
4369 | Lisp_Object frame; |
4370 | ||
4371 | /* Changing the background color might change the background | |
4372 | mode, so that we have to load new defface specs. Call | |
4373 | frame-update-face-colors to do that. */ | |
4374 | XSETFRAME (frame, f); | |
4375 | call1 (Qframe_update_face_colors, frame); | |
178c5d9c | 4376 | |
8bd201d6 GM |
4377 | lface = lface_from_face_name (f, Qdefault, 1); |
4378 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4379 | ? new_value : Qunspecified); | |
4380 | realize_basic_faces (f); | |
4381 | } | |
4382 | if (EQ (param, Qborder_color)) | |
4383 | { | |
4384 | lface = lface_from_face_name (f, Qborder, 1); | |
4385 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4386 | ? new_value : Qunspecified); | |
4387 | } | |
4388 | else if (EQ (param, Qcursor_color)) | |
4389 | { | |
4390 | lface = lface_from_face_name (f, Qcursor, 1); | |
4391 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4392 | ? new_value : Qunspecified); | |
4393 | } | |
4394 | else if (EQ (param, Qmouse_color)) | |
4395 | { | |
4396 | lface = lface_from_face_name (f, Qmouse, 1); | |
4397 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4398 | ? new_value : Qunspecified); | |
4399 | } | |
4400 | } | |
4401 | ||
4402 | ||
82641697 GM |
4403 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4404 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4405 | doesn't take a frame argument. */ | |
4406 | ||
4407 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4408 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4409 | (resource, class, frame) | |
82641697 GM |
4410 | Lisp_Object resource, class, frame; |
4411 | { | |
c3cee013 JR |
4412 | Lisp_Object value = Qnil; |
4413 | #ifndef WINDOWSNT | |
e0f712ba | 4414 | #ifndef MAC_OS |
b7826503 PJ |
4415 | CHECK_STRING (resource); |
4416 | CHECK_STRING (class); | |
4417 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4418 | BLOCK_INPUT; |
4419 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4420 | resource, class, Qnil, Qnil); | |
4421 | UNBLOCK_INPUT; | |
e0f712ba | 4422 | #endif /* not MAC_OS */ |
d12d0a9b | 4423 | #endif /* not WINDOWSNT */ |
82641697 GM |
4424 | return value; |
4425 | } | |
4426 | ||
4427 | ||
4428 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4429 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4430 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4431 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4432 | |
82641697 GM |
4433 | static Lisp_Object |
4434 | face_boolean_x_resource_value (value, signal_p) | |
4435 | Lisp_Object value; | |
4436 | int signal_p; | |
4437 | { | |
4438 | Lisp_Object result = make_number (0); | |
4439 | ||
4440 | xassert (STRINGP (value)); | |
178c5d9c | 4441 | |
d5db4077 KR |
4442 | if (xstricmp (SDATA (value), "on") == 0 |
4443 | || xstricmp (SDATA (value), "true") == 0) | |
82641697 | 4444 | result = Qt; |
d5db4077 KR |
4445 | else if (xstricmp (SDATA (value), "off") == 0 |
4446 | || xstricmp (SDATA (value), "false") == 0) | |
82641697 | 4447 | result = Qnil; |
d5db4077 | 4448 | else if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4449 | result = Qunspecified; |
4450 | else if (signal_p) | |
4451 | signal_error ("Invalid face attribute value from X resource", value); | |
4452 | ||
4453 | return result; | |
4454 | } | |
4455 | ||
4456 | ||
4457 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4458 | Finternal_set_lisp_face_attribute_from_resource, | |
4459 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4460 | 3, 4, 0, doc: /* */) |
4461 | (face, attr, value, frame) | |
82641697 GM |
4462 | Lisp_Object face, attr, value, frame; |
4463 | { | |
b7826503 PJ |
4464 | CHECK_SYMBOL (face); |
4465 | CHECK_SYMBOL (attr); | |
4466 | CHECK_STRING (value); | |
82641697 | 4467 | |
d5db4077 | 4468 | if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4469 | value = Qunspecified; |
4470 | else if (EQ (attr, QCheight)) | |
4471 | { | |
4472 | value = Fstring_to_number (value, make_number (10)); | |
4473 | if (XINT (value) <= 0) | |
4474 | signal_error ("Invalid face height from X resource", value); | |
4475 | } | |
4476 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4477 | value = face_boolean_x_resource_value (value, 1); | |
4478 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
d5db4077 | 4479 | value = intern (SDATA (value)); |
82641697 GM |
4480 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
4481 | value = face_boolean_x_resource_value (value, 1); | |
4482 | else if (EQ (attr, QCunderline) | |
4483 | || EQ (attr, QCoverline) | |
27188d11 | 4484 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4485 | { |
4486 | Lisp_Object boolean_value; | |
4487 | ||
4488 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4489 | VALUE does NOT specify a color. */ | |
4490 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4491 | if (SYMBOLP (boolean_value)) | |
4492 | value = boolean_value; | |
4493 | } | |
27188d11 GM |
4494 | else if (EQ (attr, QCbox)) |
4495 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); | |
82641697 GM |
4496 | |
4497 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4498 | } | |
4499 | ||
c3cee013 | 4500 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4501 | |
c7ae3284 GM |
4502 | \f |
4503 | /*********************************************************************** | |
4504 | Menu face | |
4505 | ***********************************************************************/ | |
4506 | ||
bce72079 | 4507 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4508 | |
bce72079 GM |
4509 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4510 | ||
4511 | static void | |
4512 | x_update_menu_appearance (f) | |
c7ae3284 | 4513 | struct frame *f; |
c7ae3284 | 4514 | { |
a03ad468 | 4515 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4516 | XrmDatabase rdb; |
178c5d9c | 4517 | |
bce72079 GM |
4518 | if (dpyinfo |
4519 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4520 | rdb != NULL)) | |
c7ae3284 | 4521 | { |
bce72079 GM |
4522 | char line[512]; |
4523 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
4524 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
53c208f6 | 4525 | const char *myname = SDATA (Vx_resource_name); |
bce72079 | 4526 | int changed_p = 0; |
8ad582ac GM |
4527 | #ifdef USE_MOTIF |
4528 | const char *popup_path = "popup_menu"; | |
4529 | #else | |
4530 | const char *popup_path = "menu.popup"; | |
4531 | #endif | |
177c0ea7 | 4532 | |
bce72079 GM |
4533 | if (STRINGP (LFACE_FOREGROUND (lface))) |
4534 | { | |
8ad582ac GM |
4535 | sprintf (line, "%s.%s*foreground: %s", |
4536 | myname, popup_path, | |
d5db4077 | 4537 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4538 | XrmPutLineResource (&rdb, line); |
4539 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 4540 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4541 | XrmPutLineResource (&rdb, line); |
4542 | changed_p = 1; | |
4543 | } | |
178c5d9c | 4544 | |
bce72079 GM |
4545 | if (STRINGP (LFACE_BACKGROUND (lface))) |
4546 | { | |
8ad582ac GM |
4547 | sprintf (line, "%s.%s*background: %s", |
4548 | myname, popup_path, | |
d5db4077 | 4549 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
4550 | XrmPutLineResource (&rdb, line); |
4551 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 4552 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
4553 | XrmPutLineResource (&rdb, line); |
4554 | changed_p = 1; | |
4555 | } | |
177c0ea7 | 4556 | |
bce72079 GM |
4557 | if (face->font_name |
4558 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4559 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4560 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
4561 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4562 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4563 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4564 | { | |
a03ad468 | 4565 | #ifdef USE_MOTIF |
bce72079 | 4566 | const char *suffix = "List"; |
a03ad468 | 4567 | #else |
bce72079 GM |
4568 | const char *suffix = ""; |
4569 | #endif | |
4570 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
4571 | myname, suffix, face->font_name); | |
4572 | XrmPutLineResource (&rdb, line); | |
2eddf899 GM |
4573 | sprintf (line, "%s.%s*font%s: %s", |
4574 | myname, popup_path, suffix, face->font_name); | |
bce72079 GM |
4575 | XrmPutLineResource (&rdb, line); |
4576 | changed_p = 1; | |
4577 | } | |
c7ae3284 | 4578 | |
bce72079 | 4579 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 4580 | free_frame_menubar (f); |
c7ae3284 GM |
4581 | } |
4582 | } | |
4583 | ||
bce72079 | 4584 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
4585 | |
4586 | ||
177c0ea7 | 4587 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
4588 | Sface_attribute_relative_p, |
4589 | 2, 2, 0, | |
4590 | doc: /* Return non-nil if face ATTRIBUTE VALUE is relative. */) | |
4591 | (attribute, value) | |
d0930289 | 4592 | Lisp_Object attribute, value; |
cdfaafa9 MB |
4593 | { |
4594 | if (EQ (value, Qunspecified)) | |
4595 | return Qt; | |
4596 | else if (EQ (attribute, QCheight)) | |
4597 | return INTEGERP (value) ? Qnil : Qt; | |
4598 | else | |
4599 | return Qnil; | |
4600 | } | |
4601 | ||
4602 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
4603 | 3, 3, 0, | |
4604 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
4605 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
4606 | the result will be absolute, otherwise it will be relative. */) | |
4607 | (attribute, value1, value2) | |
4608 | Lisp_Object attribute, value1, value2; | |
4609 | { | |
4610 | if (EQ (value1, Qunspecified)) | |
4611 | return value2; | |
4612 | else if (EQ (attribute, QCheight)) | |
4613 | return merge_face_heights (value1, value2, value1, Qnil); | |
4614 | else | |
4615 | return value1; | |
4616 | } | |
4617 | ||
82641697 GM |
4618 | |
4619 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4620 | Sinternal_get_lisp_face_attribute, | |
4621 | 2, 3, 0, | |
7ee72033 | 4622 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
4623 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
4624 | face attribute name, signal an error. | |
4625 | If the optional argument FRAME is given, report on face FACE in that | |
4626 | frame. If FRAME is t, report on the defaults for face FACE (for new | |
7ee72033 MB |
4627 | frames). If FRAME is omitted or nil, use the selected frame. */) |
4628 | (symbol, keyword, frame) | |
82641697 GM |
4629 | Lisp_Object symbol, keyword, frame; |
4630 | { | |
4631 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4632 | |
b7826503 PJ |
4633 | CHECK_SYMBOL (symbol); |
4634 | CHECK_SYMBOL (keyword); | |
82641697 GM |
4635 | |
4636 | if (EQ (frame, Qt)) | |
4637 | lface = lface_from_face_name (NULL, symbol, 1); | |
4638 | else | |
4639 | { | |
4640 | if (NILP (frame)) | |
c0617987 | 4641 | frame = selected_frame; |
b7826503 | 4642 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4643 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
4644 | } | |
4645 | ||
4646 | if (EQ (keyword, QCfamily)) | |
4647 | value = LFACE_FAMILY (lface); | |
4648 | else if (EQ (keyword, QCheight)) | |
4649 | value = LFACE_HEIGHT (lface); | |
4650 | else if (EQ (keyword, QCweight)) | |
4651 | value = LFACE_WEIGHT (lface); | |
4652 | else if (EQ (keyword, QCslant)) | |
4653 | value = LFACE_SLANT (lface); | |
4654 | else if (EQ (keyword, QCunderline)) | |
4655 | value = LFACE_UNDERLINE (lface); | |
4656 | else if (EQ (keyword, QCoverline)) | |
4657 | value = LFACE_OVERLINE (lface); | |
4658 | else if (EQ (keyword, QCstrike_through)) | |
4659 | value = LFACE_STRIKE_THROUGH (lface); | |
4660 | else if (EQ (keyword, QCbox)) | |
4661 | value = LFACE_BOX (lface); | |
4662 | else if (EQ (keyword, QCinverse_video) | |
4663 | || EQ (keyword, QCreverse_video)) | |
4664 | value = LFACE_INVERSE (lface); | |
4665 | else if (EQ (keyword, QCforeground)) | |
4666 | value = LFACE_FOREGROUND (lface); | |
4667 | else if (EQ (keyword, QCbackground)) | |
4668 | value = LFACE_BACKGROUND (lface); | |
4669 | else if (EQ (keyword, QCstipple)) | |
4670 | value = LFACE_STIPPLE (lface); | |
4671 | else if (EQ (keyword, QCwidth)) | |
4672 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4673 | else if (EQ (keyword, QCinherit)) |
4674 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4675 | else if (EQ (keyword, QCfont)) |
4676 | value = LFACE_FONT (lface); | |
82641697 GM |
4677 | else |
4678 | signal_error ("Invalid face attribute name", keyword); | |
4679 | ||
4680 | return value; | |
4681 | } | |
4682 | ||
4683 | ||
4684 | DEFUN ("internal-lisp-face-attribute-values", | |
4685 | Finternal_lisp_face_attribute_values, | |
4686 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
4687 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
4688 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
4689 | (attr) | |
82641697 GM |
4690 | Lisp_Object attr; |
4691 | { | |
4692 | Lisp_Object result = Qnil; | |
178c5d9c | 4693 | |
b7826503 | 4694 | CHECK_SYMBOL (attr); |
178c5d9c | 4695 | |
82641697 GM |
4696 | if (EQ (attr, QCweight) |
4697 | || EQ (attr, QCslant) | |
4698 | || EQ (attr, QCwidth)) | |
4699 | { | |
4700 | /* Extract permissible symbols from tables. */ | |
4701 | struct table_entry *table; | |
4702 | int i, dim; | |
178c5d9c | 4703 | |
82641697 GM |
4704 | if (EQ (attr, QCweight)) |
4705 | table = weight_table, dim = DIM (weight_table); | |
4706 | else if (EQ (attr, QCslant)) | |
4707 | table = slant_table, dim = DIM (slant_table); | |
4708 | else | |
4709 | table = swidth_table, dim = DIM (swidth_table); | |
4710 | ||
4711 | for (i = 0; i < dim; ++i) | |
4712 | { | |
4713 | Lisp_Object symbol = *table[i].symbol; | |
4714 | Lisp_Object tail = result; | |
4715 | ||
4716 | while (!NILP (tail) | |
4717 | && !EQ (XCAR (tail), symbol)) | |
4718 | tail = XCDR (tail); | |
4719 | ||
4720 | if (NILP (tail)) | |
4721 | result = Fcons (symbol, result); | |
4722 | } | |
4723 | } | |
4724 | else if (EQ (attr, QCunderline)) | |
4725 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4726 | else if (EQ (attr, QCoverline)) | |
4727 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4728 | else if (EQ (attr, QCstrike_through)) | |
4729 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4730 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4731 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4732 | ||
4733 | return result; | |
4734 | } | |
178c5d9c | 4735 | |
82641697 GM |
4736 | |
4737 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4738 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 4739 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
4740 | Default face attributes override any local face attributes. */) |
4741 | (face, frame) | |
82641697 GM |
4742 | Lisp_Object face, frame; |
4743 | { | |
aad40737 MB |
4744 | int i; |
4745 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4746 | ||
b7826503 | 4747 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4748 | global_lface = lface_from_face_name (NULL, face, 1); |
4749 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4750 | if (NILP (local_lface)) | |
4751 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4752 | |
cec33c90 SM |
4753 | /* Make every specified global attribute override the local one. |
4754 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4755 | the local frame is defined from default specs in `face-defface-spec' | |
4756 | and those should be overridden by global settings. Hence the strange | |
4757 | "global before local" priority. */ | |
aad40737 MB |
4758 | lvec = XVECTOR (local_lface)->contents; |
4759 | gvec = XVECTOR (global_lface)->contents; | |
4760 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4761 | if (! UNSPECIFIEDP (gvec[i])) | |
4762 | lvec[i] = gvec[i]; | |
334a2e2a GM |
4763 | |
4764 | return Qnil; | |
82641697 GM |
4765 | } |
4766 | ||
4767 | ||
4768 | /* The following function is implemented for compatibility with 20.2. | |
4769 | The function is used in x-resolve-fonts when it is asked to | |
4770 | return fonts with the same size as the font of a face. This is | |
4771 | done in fontset.el. */ | |
4772 | ||
178c5d9c | 4773 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
e3cd9e7f | 4774 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
228299fa GM |
4775 | If the optional argument FRAME is given, report on face FACE in that frame. |
4776 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
4777 | The font default for a face is either nil, or a list | |
4778 | of the form (bold), (italic) or (bold italic). | |
7ee72033 MB |
4779 | If FRAME is omitted or nil, use the selected frame. */) |
4780 | (face, frame) | |
82641697 GM |
4781 | Lisp_Object face, frame; |
4782 | { | |
4783 | if (EQ (frame, Qt)) | |
4784 | { | |
4785 | Lisp_Object result = Qnil; | |
4786 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4787 | ||
4788 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4789 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4790 | result = Fcons (Qbold, result); | |
178c5d9c | 4791 | |
0f2c6573 | 4792 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
4793 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
4794 | result = Fcons (Qitalic, result); | |
178c5d9c | 4795 | |
82641697 GM |
4796 | return result; |
4797 | } | |
4798 | else | |
4799 | { | |
4800 | struct frame *f = frame_or_selected_frame (frame, 1); | |
39506348 | 4801 | int face_id = lookup_named_face (f, face, 0); |
82641697 | 4802 | struct face *face = FACE_FROM_ID (f, face_id); |
b5de343d | 4803 | return face ? build_string (face->font_name) : Qnil; |
82641697 GM |
4804 | } |
4805 | } | |
4806 | ||
4807 | ||
4808 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4809 | all attributes are `equal'. Tries to be fast because this function | |
4810 | is called quite often. */ | |
4811 | ||
4812 | static INLINE int | |
4813 | lface_equal_p (v1, v2) | |
4814 | Lisp_Object *v1, *v2; | |
4815 | { | |
4816 | int i, equal_p = 1; | |
4817 | ||
4818 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4819 | { | |
4820 | Lisp_Object a = v1[i]; | |
4821 | Lisp_Object b = v2[i]; | |
4822 | ||
4823 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4824 | and the other is specified. */ | |
4825 | equal_p = XTYPE (a) == XTYPE (b); | |
4826 | if (!equal_p) | |
4827 | break; | |
4828 | ||
4829 | if (!EQ (a, b)) | |
4830 | { | |
4831 | switch (XTYPE (a)) | |
4832 | { | |
4833 | case Lisp_String: | |
d5db4077 KR |
4834 | equal_p = ((SBYTES (a) |
4835 | == SBYTES (b)) | |
4836 | && bcmp (SDATA (a), SDATA (b), | |
4837 | SBYTES (a)) == 0); | |
82641697 | 4838 | break; |
178c5d9c | 4839 | |
82641697 GM |
4840 | case Lisp_Int: |
4841 | case Lisp_Symbol: | |
4842 | equal_p = 0; | |
4843 | break; | |
178c5d9c | 4844 | |
82641697 GM |
4845 | default: |
4846 | equal_p = !NILP (Fequal (a, b)); | |
4847 | break; | |
4848 | } | |
4849 | } | |
4850 | } | |
178c5d9c | 4851 | |
82641697 GM |
4852 | return equal_p; |
4853 | } | |
4854 | ||
4855 | ||
4856 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4857 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 4858 | doc: /* True if FACE1 and FACE2 are equal. |
228299fa GM |
4859 | If the optional argument FRAME is given, report on face FACE in that frame. |
4860 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
4861 | If FRAME is omitted or nil, use the selected frame. */) |
4862 | (face1, face2, frame) | |
82641697 GM |
4863 | Lisp_Object face1, face2, frame; |
4864 | { | |
4865 | int equal_p; | |
4866 | struct frame *f; | |
4867 | Lisp_Object lface1, lface2; | |
178c5d9c | 4868 | |
82641697 GM |
4869 | if (EQ (frame, Qt)) |
4870 | f = NULL; | |
4871 | else | |
4872 | /* Don't use check_x_frame here because this function is called | |
4873 | before X frames exist. At that time, if FRAME is nil, | |
4874 | selected_frame will be used which is the frame dumped with | |
4875 | Emacs. That frame is not an X frame. */ | |
4876 | f = frame_or_selected_frame (frame, 2); | |
4877 | ||
4878 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4879 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4880 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4881 | XVECTOR (lface2)->contents); | |
4882 | return equal_p ? Qt : Qnil; | |
4883 | } | |
4884 | ||
178c5d9c | 4885 | |
82641697 GM |
4886 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
4887 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 4888 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
4889 | If the optional argument FRAME is given, report on face FACE in that frame. |
4890 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
4891 | If FRAME is omitted or nil, use the selected frame. */) |
4892 | (face, frame) | |
82641697 GM |
4893 | Lisp_Object face, frame; |
4894 | { | |
4895 | struct frame *f; | |
4896 | Lisp_Object lface; | |
4897 | int i; | |
4898 | ||
4899 | if (NILP (frame)) | |
c0617987 | 4900 | frame = selected_frame; |
b7826503 | 4901 | CHECK_LIVE_FRAME (frame); |
c0617987 | 4902 | f = XFRAME (frame); |
178c5d9c | 4903 | |
82641697 GM |
4904 | if (EQ (frame, Qt)) |
4905 | lface = lface_from_face_name (NULL, face, 1); | |
4906 | else | |
4907 | lface = lface_from_face_name (f, face, 1); | |
4908 | ||
4909 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 4910 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 4911 | break; |
178c5d9c | 4912 | |
82641697 GM |
4913 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
4914 | } | |
4915 | ||
4916 | ||
4917 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 4918 | 0, 1, 0, |
7ee72033 MB |
4919 | doc: /* Return an alist of frame-local faces defined on FRAME. |
4920 | For internal use only. */) | |
4921 | (frame) | |
82641697 GM |
4922 | Lisp_Object frame; |
4923 | { | |
4924 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4925 | return f->face_alist; | |
4926 | } | |
4927 | ||
4928 | ||
4929 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4930 | below in computing a hash value for a Lisp face. */ | |
4931 | ||
4932 | static INLINE unsigned | |
4933 | hash_string_case_insensitive (string) | |
4934 | Lisp_Object string; | |
4935 | { | |
53c208f6 | 4936 | const unsigned char *s; |
82641697 GM |
4937 | unsigned hash = 0; |
4938 | xassert (STRINGP (string)); | |
d5db4077 | 4939 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
4940 | hash = (hash << 1) ^ tolower (*s); |
4941 | return hash; | |
4942 | } | |
4943 | ||
4944 | ||
4945 | /* Return a hash code for face attribute vector V. */ | |
4946 | ||
4947 | static INLINE unsigned | |
4948 | lface_hash (v) | |
4949 | Lisp_Object *v; | |
4950 | { | |
4951 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4952 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4953 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
4954 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
4955 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
4956 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
4957 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
4958 | } | |
4959 | ||
4960 | ||
4961 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4962 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
4963 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
4964 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
4965 | |
4966 | static INLINE int | |
4967 | lface_same_font_attributes_p (lface1, lface2) | |
4968 | Lisp_Object *lface1, *lface2; | |
4969 | { | |
4970 | xassert (lface_fully_specified_p (lface1) | |
4971 | && lface_fully_specified_p (lface2)); | |
d5db4077 KR |
4972 | return (xstricmp (SDATA (lface1[LFACE_FAMILY_INDEX]), |
4973 | SDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
2c20458f | 4974 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 4975 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 4976 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 4977 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
4978 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
4979 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
4980 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 4981 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
d5db4077 KR |
4982 | && xstricmp (SDATA (lface1[LFACE_FONT_INDEX]), |
4983 | SDATA (lface2[LFACE_FONT_INDEX]))))); | |
82641697 GM |
4984 | } |
4985 | ||
4986 | ||
4987 | \f | |
4988 | /*********************************************************************** | |
4989 | Realized Faces | |
4990 | ***********************************************************************/ | |
4991 | ||
4992 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4993 | vector ATTR. */ |
82641697 GM |
4994 | |
4995 | static struct face * | |
39506348 | 4996 | make_realized_face (attr) |
82641697 | 4997 | Lisp_Object *attr; |
82641697 GM |
4998 | { |
4999 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
5000 | bzero (face, sizeof *face); | |
39506348 | 5001 | face->ascii_face = face; |
82641697 GM |
5002 | bcopy (attr, face->lface, sizeof face->lface); |
5003 | return face; | |
5004 | } | |
5005 | ||
5006 | ||
5007 | /* Free realized face FACE, including its X resources. FACE may | |
5008 | be null. */ | |
5009 | ||
5010 | static void | |
5011 | free_realized_face (f, face) | |
5012 | struct frame *f; | |
5013 | struct face *face; | |
5014 | { | |
5015 | if (face) | |
5016 | { | |
c3cee013 JR |
5017 | #ifdef HAVE_WINDOW_SYSTEM |
5018 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5019 | { |
39506348 KH |
5020 | /* Free fontset of FACE if it is ASCII face. */ |
5021 | if (face->fontset >= 0 && face == face->ascii_face) | |
5022 | free_face_fontset (f, face); | |
82641697 GM |
5023 | if (face->gc) |
5024 | { | |
5025 | x_free_gc (f, face->gc); | |
5026 | face->gc = 0; | |
5027 | } | |
178c5d9c | 5028 | |
82641697 GM |
5029 | free_face_colors (f, face); |
5030 | x_destroy_bitmap (f, face->stipple); | |
5031 | } | |
c3cee013 | 5032 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5033 | |
5034 | xfree (face); | |
5035 | } | |
5036 | } | |
5037 | ||
5038 | ||
5039 | /* Prepare face FACE for subsequent display on frame F. This | |
5040 | allocated GCs if they haven't been allocated yet or have been freed | |
5041 | by clearing the face cache. */ | |
5042 | ||
5043 | void | |
5044 | prepare_face_for_display (f, face) | |
5045 | struct frame *f; | |
5046 | struct face *face; | |
5047 | { | |
c3cee013 JR |
5048 | #ifdef HAVE_WINDOW_SYSTEM |
5049 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5050 | |
82641697 GM |
5051 | if (face->gc == 0) |
5052 | { | |
5053 | XGCValues xgcv; | |
5054 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5055 | ||
5056 | xgcv.foreground = face->foreground; | |
5057 | xgcv.background = face->background; | |
c3cee013 | 5058 | #ifdef HAVE_X_WINDOWS |
82641697 | 5059 | xgcv.graphics_exposures = False; |
c3cee013 | 5060 | #endif |
82641697 GM |
5061 | /* The font of FACE may be null if we couldn't load it. */ |
5062 | if (face->font) | |
5063 | { | |
c3cee013 | 5064 | #ifdef HAVE_X_WINDOWS |
82641697 | 5065 | xgcv.font = face->font->fid; |
c3cee013 JR |
5066 | #endif |
5067 | #ifdef WINDOWSNT | |
5068 | xgcv.font = face->font; | |
1a578e9b | 5069 | #endif |
e0f712ba | 5070 | #ifdef MAC_OS |
1a578e9b | 5071 | xgcv.font = face->font; |
c3cee013 | 5072 | #endif |
82641697 GM |
5073 | mask |= GCFont; |
5074 | } | |
5075 | ||
5076 | BLOCK_INPUT; | |
c3cee013 | 5077 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5078 | if (face->stipple) |
5079 | { | |
be8a72f4 | 5080 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5081 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5082 | mask |= GCFillStyle | GCStipple; | |
5083 | } | |
c3cee013 | 5084 | #endif |
82641697 GM |
5085 | face->gc = x_create_gc (f, mask, &xgcv); |
5086 | UNBLOCK_INPUT; | |
5087 | } | |
c3cee013 | 5088 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5089 | } |
5090 | ||
82641697 | 5091 | \f |
b35df831 MB |
5092 | /* Returns the `distance' between the colors X and Y. */ |
5093 | ||
5094 | static int | |
5095 | color_distance (x, y) | |
5096 | XColor *x, *y; | |
5097 | { | |
5098 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
5099 | Quoting from that paper: | |
5100 | ||
5101 | This formula has results that are very close to L*u*v* (with the | |
5102 | modified lightness curve) and, more importantly, it is a more even | |
5103 | algorithm: it does not have a range of colours where it suddenly | |
5104 | gives far from optimal results. | |
5105 | ||
5106 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
5107 | ||
5108 | long r = (x->red - y->red) >> 8; | |
5109 | long g = (x->green - y->green) >> 8; | |
5110 | long b = (x->blue - y->blue) >> 8; | |
5111 | long r_mean = (x->red + y->red) >> 9; | |
5112 | ||
5113 | return | |
5114 | (((512 + r_mean) * r * r) >> 8) | |
5115 | + 4 * g * g | |
5116 | + (((767 - r_mean) * b * b) >> 8); | |
5117 | } | |
5118 | ||
5119 | ||
5120 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
5121 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
5122 | COLOR1 and COLOR2 may be either strings containing the color name, | |
5123 | or lists of the form (RED GREEN BLUE). | |
5124 | If FRAME is unspecified or nil, the current frame is used. */) | |
5125 | (color1, color2, frame) | |
5126 | Lisp_Object color1, color2, frame; | |
5127 | { | |
5128 | struct frame *f; | |
5129 | XColor cdef1, cdef2; | |
5130 | ||
5131 | if (NILP (frame)) | |
5132 | frame = selected_frame; | |
5133 | CHECK_LIVE_FRAME (frame); | |
5134 | f = XFRAME (frame); | |
5135 | ||
5136 | if ((CONSP (color1) && !parse_rgb_list (color1, &cdef1)) | |
5137 | || !STRINGP (color1) | |
d5db4077 | 5138 | || !defined_color (f, SDATA (color1), &cdef1, 0)) |
b35df831 MB |
5139 | signal_error ("Invalid color", color1); |
5140 | if ((CONSP (color2) && !parse_rgb_list (color2, &cdef2)) | |
5141 | || !STRINGP (color2) | |
d5db4077 | 5142 | || !defined_color (f, SDATA (color2), &cdef2, 0)) |
b35df831 MB |
5143 | signal_error ("Invalid color", color2); |
5144 | ||
5145 | return make_number (color_distance (&cdef1, &cdef2)); | |
5146 | } | |
5147 | ||
5148 | \f | |
5149 | /*********************************************************************** | |
5150 | Face capability testing for ttys | |
5151 | ***********************************************************************/ | |
5152 | ||
5153 | ||
5154 | /* If the distance (as returned by color_distance) between two colors is | |
5155 | less than this, then they are considered the same, for determining | |
5156 | whether a color is supported or not. The range of values is 0-65535. */ | |
5157 | ||
5158 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
5159 | ||
5160 | ||
5161 | DEFUN ("tty-supports-face-attributes-p", | |
5162 | Ftty_supports_face_attributes_p, Stty_supports_face_attributes_p, | |
5163 | 1, 2, 0, | |
5164 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
5165 | The optional argument FRAME is the frame on which to test; if it is nil | |
5166 | or unspecified, then the current frame is used. If FRAME is not a tty | |
5167 | frame, then nil is returned. | |
5168 | ||
5169 | The definition of `supported' is somewhat heuristic, but basically means | |
5170 | that a face containing all the attributes in ATTRIBUTES, when merged | |
5171 | with the default face for display, can be represented in a way that's | |
5172 | ||
5173 | \(1) different in appearance than the default face, and | |
5174 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
5175 | ||
5176 | Point (2) implies that a `:weight black' attribute will be satisified | |
5177 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
5178 | long as the terminal can display a yellowish color, but `:slant italic' | |
5179 | will _not_ be satisified by the tty display code's automatic | |
5180 | substitution of a `dim' face for italic. */) | |
5181 | (attributes, frame) | |
5182 | Lisp_Object attributes, frame; | |
5183 | { | |
5184 | int weight, i; | |
5185 | struct frame *f; | |
5186 | Lisp_Object val, fg, bg; | |
5187 | XColor fg_tty_color, fg_std_color; | |
5188 | XColor bg_tty_color, bg_std_color; | |
5189 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5190 | unsigned test_caps = 0; | |
5191 | ||
5192 | if (NILP (frame)) | |
5193 | frame = selected_frame; | |
5194 | CHECK_LIVE_FRAME (frame); | |
5195 | f = XFRAME (frame); | |
5196 | ||
5197 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
5198 | attrs[i] = Qunspecified; | |
5199 | merge_face_vector_with_property (f, attrs, attributes); | |
5200 | ||
5201 | /* This function only works on ttys. */ | |
5202 | if (!FRAME_TERMCAP_P (f) && !FRAME_MSDOS_P (f)) | |
5203 | return Qnil; | |
5204 | ||
5205 | /* First check some easy-to-check stuff; ttys support none of the | |
5206 | following attributes, so we can just return nil if any are requested. */ | |
5207 | ||
5208 | /* stipple */ | |
5209 | val = attrs[LFACE_STIPPLE_INDEX]; | |
5210 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5211 | return Qnil; | |
5212 | ||
5213 | /* font height */ | |
5214 | val = attrs[LFACE_HEIGHT_INDEX]; | |
5215 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5216 | return Qnil; | |
5217 | ||
5218 | /* font width */ | |
5219 | val = attrs[LFACE_SWIDTH_INDEX]; | |
5220 | if (!UNSPECIFIEDP (val) && !NILP (val) | |
5221 | && face_numeric_swidth (val) != XLFD_SWIDTH_MEDIUM) | |
5222 | return Qnil; | |
5223 | ||
5224 | /* overline */ | |
5225 | val = attrs[LFACE_OVERLINE_INDEX]; | |
5226 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5227 | return Qnil; | |
5228 | ||
5229 | /* strike-through */ | |
5230 | val = attrs[LFACE_STRIKE_THROUGH_INDEX]; | |
5231 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5232 | return Qnil; | |
5233 | ||
5234 | /* boxes */ | |
5235 | val = attrs[LFACE_BOX_INDEX]; | |
5236 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5237 | return Qnil; | |
5238 | ||
5239 | /* slant (italics/oblique); We consider any non-default value | |
5240 | unsupportable on ttys, even though the face code actually `fakes' | |
5241 | them using a dim attribute if possible. This is because the faked | |
5242 | result is too different from what the face specifies. */ | |
5243 | val = attrs[LFACE_SLANT_INDEX]; | |
5244 | if (!UNSPECIFIEDP (val) && !NILP (val) | |
5245 | && face_numeric_slant (val) != XLFD_SLANT_ROMAN) | |
5246 | return Qnil; | |
5247 | ||
5248 | ||
5249 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
5250 | ||
5251 | /* font weight (bold/dim) */ | |
5252 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5253 | if (weight >= 0) | |
5254 | { | |
5255 | if (weight > XLFD_WEIGHT_MEDIUM) | |
5256 | test_caps = TTY_CAP_BOLD; | |
5257 | else if (weight < XLFD_WEIGHT_MEDIUM) | |
5258 | test_caps = TTY_CAP_DIM; | |
5259 | } | |
177c0ea7 | 5260 | |
b35df831 MB |
5261 | /* underlining */ |
5262 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
5263 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5264 | { | |
5265 | if (STRINGP (val)) | |
5266 | return Qnil; /* ttys don't support colored underlines */ | |
5267 | else | |
5268 | test_caps |= TTY_CAP_UNDERLINE; | |
5269 | } | |
5270 | ||
5271 | /* inverse video */ | |
5272 | val = attrs[LFACE_INVERSE_INDEX]; | |
5273 | if (!UNSPECIFIEDP (val) && !NILP (val)) | |
5274 | test_caps |= TTY_CAP_INVERSE; | |
5275 | ||
5276 | ||
5277 | /* Color testing. */ | |
5278 | ||
5279 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
5280 | we use them when calling `tty_capable_p' below, even if the face | |
5281 | specifies no colors. */ | |
5282 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
5283 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
5284 | ||
5285 | /* Check if foreground color is close enough. */ | |
5286 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
5287 | if (STRINGP (fg)) | |
5288 | { | |
5289 | if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
5290 | return Qnil; | |
5291 | else if (color_distance (&fg_tty_color, &fg_std_color) | |
5292 | > TTY_SAME_COLOR_THRESHOLD) | |
5293 | return Qnil; | |
5294 | } | |
5295 | ||
5296 | /* Check if background color is close enough. */ | |
5297 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
5298 | if (STRINGP (bg)) | |
5299 | { | |
5300 | if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
5301 | return Qnil; | |
5302 | else if (color_distance (&bg_tty_color, &bg_std_color) | |
5303 | > TTY_SAME_COLOR_THRESHOLD) | |
5304 | return Qnil; | |
5305 | } | |
5306 | ||
5307 | /* If both foreground and background are requested, see if the | |
5308 | distance between them is OK. We just check to see if the distance | |
5309 | between the tty's foreground and background is close enough to the | |
5310 | distance between the standard foreground and background. */ | |
5311 | if (STRINGP (fg) && STRINGP (bg)) | |
5312 | { | |
5313 | int delta_delta | |
5314 | = (color_distance (&fg_std_color, &bg_std_color) | |
5315 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
5316 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
5317 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
5318 | return Qnil; | |
5319 | } | |
5320 | ||
5321 | ||
5322 | /* See if the capabilities we selected above are supported, with the | |
5323 | given colors. */ | |
5324 | if (test_caps != 0 && | |
5325 | ! tty_capable_p (f, test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) | |
5326 | return Qnil; | |
5327 | ||
5328 | ||
5329 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
5330 | return Qt; | |
5331 | } | |
5332 | ||
5333 | ||
5334 | \f | |
82641697 GM |
5335 | /*********************************************************************** |
5336 | Face Cache | |
5337 | ***********************************************************************/ | |
5338 | ||
5339 | /* Return a new face cache for frame F. */ | |
5340 | ||
5341 | static struct face_cache * | |
5342 | make_face_cache (f) | |
5343 | struct frame *f; | |
5344 | { | |
5345 | struct face_cache *c; | |
5346 | int size; | |
5347 | ||
5348 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5349 | bzero (c, sizeof *c); | |
5350 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5351 | c->buckets = (struct face **) xmalloc (size); | |
5352 | bzero (c->buckets, size); | |
5353 | c->size = 50; | |
5354 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5355 | c->f = f; | |
ceeda019 | 5356 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5357 | return c; |
5358 | } | |
5359 | ||
5360 | ||
5361 | /* Clear out all graphics contexts for all realized faces, except for | |
5362 | the basic faces. This should be done from time to time just to avoid | |
5363 | keeping too many graphics contexts that are no longer needed. */ | |
5364 | ||
5365 | static void | |
5366 | clear_face_gcs (c) | |
5367 | struct face_cache *c; | |
5368 | { | |
c3cee013 | 5369 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5370 | { |
c3cee013 | 5371 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5372 | int i; |
5373 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5374 | { | |
5375 | struct face *face = c->faces_by_id[i]; | |
5376 | if (face && face->gc) | |
5377 | { | |
5378 | x_free_gc (c->f, face->gc); | |
5379 | face->gc = 0; | |
5380 | } | |
5381 | } | |
c3cee013 | 5382 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5383 | } |
5384 | } | |
5385 | ||
5386 | ||
5387 | /* Free all realized faces in face cache C, including basic faces. C | |
5388 | may be null. If faces are freed, make sure the frame's current | |
5389 | matrix is marked invalid, so that a display caused by an expose | |
5390 | event doesn't try to use faces we destroyed. */ | |
5391 | ||
5392 | static void | |
5393 | free_realized_faces (c) | |
5394 | struct face_cache *c; | |
5395 | { | |
5396 | if (c && c->used) | |
5397 | { | |
5398 | int i, size; | |
5399 | struct frame *f = c->f; | |
5400 | ||
84ec3b4b GM |
5401 | /* We must block input here because we can't process X events |
5402 | safely while only some faces are freed, or when the frame's | |
5403 | current matrix still references freed faces. */ | |
5404 | BLOCK_INPUT; | |
5405 | ||
82641697 GM |
5406 | for (i = 0; i < c->used; ++i) |
5407 | { | |
5408 | free_realized_face (f, c->faces_by_id[i]); | |
5409 | c->faces_by_id[i] = NULL; | |
5410 | } | |
178c5d9c | 5411 | |
82641697 GM |
5412 | c->used = 0; |
5413 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5414 | bzero (c->buckets, size); | |
5415 | ||
5416 | /* Must do a thorough redisplay the next time. Mark current | |
5417 | matrices as invalid because they will reference faces freed | |
5418 | above. This function is also called when a frame is | |
5419 | destroyed. In this case, the root window of F is nil. */ | |
5420 | if (WINDOWP (f->root_window)) | |
5421 | { | |
5422 | clear_current_matrices (f); | |
5423 | ++windows_or_buffers_changed; | |
5424 | } | |
84ec3b4b GM |
5425 | |
5426 | UNBLOCK_INPUT; | |
82641697 GM |
5427 | } |
5428 | } | |
5429 | ||
5430 | ||
39506348 KH |
5431 | /* Free all faces realized for multibyte characters on frame F that |
5432 | has FONTSET. */ | |
5433 | ||
5434 | void | |
5435 | free_realized_multibyte_face (f, fontset) | |
5436 | struct frame *f; | |
5437 | int fontset; | |
5438 | { | |
5439 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5440 | struct face *face; | |
5441 | int i; | |
5442 | ||
84ec3b4b GM |
5443 | /* We must block input here because we can't process X events safely |
5444 | while only some faces are freed, or when the frame's current | |
5445 | matrix still references freed faces. */ | |
5446 | BLOCK_INPUT; | |
178c5d9c | 5447 | |
39506348 KH |
5448 | for (i = 0; i < cache->used; i++) |
5449 | { | |
5450 | face = cache->faces_by_id[i]; | |
5451 | if (face | |
5452 | && face != face->ascii_face | |
5453 | && face->fontset == fontset) | |
5454 | { | |
5455 | uncache_face (cache, face); | |
5456 | free_realized_face (f, face); | |
5457 | } | |
5458 | } | |
178c5d9c | 5459 | |
84ec3b4b GM |
5460 | /* Must do a thorough redisplay the next time. Mark current |
5461 | matrices as invalid because they will reference faces freed | |
5462 | above. This function is also called when a frame is destroyed. | |
5463 | In this case, the root window of F is nil. */ | |
39506348 KH |
5464 | if (WINDOWP (f->root_window)) |
5465 | { | |
5466 | clear_current_matrices (f); | |
5467 | ++windows_or_buffers_changed; | |
5468 | } | |
178c5d9c | 5469 | |
84ec3b4b | 5470 | UNBLOCK_INPUT; |
39506348 KH |
5471 | } |
5472 | ||
5473 | ||
82641697 GM |
5474 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5475 | This is done after attributes of a named face have been changed, | |
5476 | because we can't tell which realized faces depend on that face. */ | |
5477 | ||
5478 | void | |
5479 | free_all_realized_faces (frame) | |
5480 | Lisp_Object frame; | |
5481 | { | |
5482 | if (NILP (frame)) | |
5483 | { | |
5484 | Lisp_Object rest; | |
5485 | FOR_EACH_FRAME (rest, frame) | |
5486 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5487 | } | |
5488 | else | |
5489 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5490 | } | |
5491 | ||
5492 | ||
5493 | /* Free face cache C and faces in it, including their X resources. */ | |
5494 | ||
5495 | static void | |
5496 | free_face_cache (c) | |
5497 | struct face_cache *c; | |
5498 | { | |
5499 | if (c) | |
5500 | { | |
5501 | free_realized_faces (c); | |
5502 | xfree (c->buckets); | |
5503 | xfree (c->faces_by_id); | |
5504 | xfree (c); | |
5505 | } | |
5506 | } | |
5507 | ||
5508 | ||
5509 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5510 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5511 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5512 | otherwise lookup_face would find FACE for every character, even if |
5513 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5514 | |
5515 | static void | |
5516 | cache_face (c, face, hash) | |
5517 | struct face_cache *c; | |
5518 | struct face *face; | |
5519 | unsigned hash; | |
5520 | { | |
5521 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5522 | ||
5523 | face->hash = hash; | |
5524 | ||
5525 | if (face->fontset >= 0) | |
5526 | { | |
5527 | struct face *last = c->buckets[i]; | |
5528 | if (last) | |
5529 | { | |
5530 | while (last->next) | |
5531 | last = last->next; | |
5532 | last->next = face; | |
5533 | face->prev = last; | |
5534 | face->next = NULL; | |
5535 | } | |
5536 | else | |
5537 | { | |
5538 | c->buckets[i] = face; | |
5539 | face->prev = face->next = NULL; | |
5540 | } | |
5541 | } | |
5542 | else | |
5543 | { | |
5544 | face->prev = NULL; | |
5545 | face->next = c->buckets[i]; | |
5546 | if (face->next) | |
5547 | face->next->prev = face; | |
5548 | c->buckets[i] = face; | |
5549 | } | |
5550 | ||
5551 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5552 | slot as FACE->id. */ | |
5553 | for (i = 0; i < c->used; ++i) | |
5554 | if (c->faces_by_id[i] == NULL) | |
5555 | break; | |
5556 | face->id = i; | |
178c5d9c | 5557 | |
82641697 GM |
5558 | /* Maybe enlarge C->faces_by_id. */ |
5559 | if (i == c->used && c->used == c->size) | |
5560 | { | |
5561 | int new_size = 2 * c->size; | |
5562 | int sz = new_size * sizeof *c->faces_by_id; | |
5563 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5564 | c->size = new_size; | |
5565 | } | |
5566 | ||
5567 | #if GLYPH_DEBUG | |
5568 | /* Check that FACE got a unique id. */ | |
5569 | { | |
5570 | int j, n; | |
5571 | struct face *face; | |
5572 | ||
5573 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5574 | for (face = c->buckets[j]; face; face = face->next) | |
5575 | if (face->id == i) | |
5576 | ++n; | |
5577 | ||
5578 | xassert (n == 1); | |
5579 | } | |
5580 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5581 | |
82641697 GM |
5582 | c->faces_by_id[i] = face; |
5583 | if (i == c->used) | |
5584 | ++c->used; | |
5585 | } | |
5586 | ||
5587 | ||
5588 | /* Remove face FACE from cache C. */ | |
5589 | ||
5590 | static void | |
5591 | uncache_face (c, face) | |
5592 | struct face_cache *c; | |
5593 | struct face *face; | |
5594 | { | |
5595 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5596 | |
82641697 GM |
5597 | if (face->prev) |
5598 | face->prev->next = face->next; | |
5599 | else | |
5600 | c->buckets[i] = face->next; | |
178c5d9c | 5601 | |
82641697 GM |
5602 | if (face->next) |
5603 | face->next->prev = face->prev; | |
178c5d9c | 5604 | |
82641697 GM |
5605 | c->faces_by_id[face->id] = NULL; |
5606 | if (face->id == c->used) | |
5607 | --c->used; | |
5608 | } | |
5609 | ||
5610 | ||
5611 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5612 | of frame F. The face will be used to display character C. Value |
5613 | is the ID of the face found. If no suitable face is found, realize | |
5614 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5615 | is a face that has the same attributes. */ |
82641697 GM |
5616 | |
5617 | INLINE int | |
39506348 | 5618 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5619 | struct frame *f; |
5620 | Lisp_Object *attr; | |
39506348 KH |
5621 | int c; |
5622 | struct face *base_face; | |
82641697 | 5623 | { |
39506348 | 5624 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5625 | unsigned hash; |
5626 | int i; | |
5627 | struct face *face; | |
5628 | ||
39506348 | 5629 | xassert (cache != NULL); |
82641697 GM |
5630 | check_lface_attrs (attr); |
5631 | ||
5632 | /* Look up ATTR in the face cache. */ | |
5633 | hash = lface_hash (attr); | |
5634 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5635 | |
39506348 | 5636 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5637 | if (face->hash == hash |
44747bd0 | 5638 | && (!FRAME_WINDOW_P (f) |
39506348 | 5639 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5640 | && lface_equal_p (face->lface, attr)) |
5641 | break; | |
5642 | ||
5643 | /* If not found, realize a new face. */ | |
5644 | if (face == NULL) | |
39506348 | 5645 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5646 | |
5647 | #if GLYPH_DEBUG | |
5648 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5649 | |
5650 | /* When this function is called from face_for_char (in this case, C is | |
5651 | a multibyte character), a fontset of a face returned by | |
5652 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5653 | C) is not sutisfied. The fontset is set for this face by | |
5654 | face_for_char later. */ | |
c87a1fda | 5655 | #if 0 |
c3cee013 | 5656 | if (FRAME_WINDOW_P (f)) |
39506348 | 5657 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5658 | #endif |
82641697 | 5659 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5660 | |
82641697 GM |
5661 | return face->id; |
5662 | } | |
5663 | ||
5664 | ||
5665 | /* Return the face id of the realized face for named face SYMBOL on | |
b5de343d GM |
5666 | frame F suitable for displaying character C. Value is -1 if the |
5667 | face couldn't be determined, which might happen if the default face | |
5668 | isn't realized and cannot be realized. */ | |
82641697 GM |
5669 | |
5670 | int | |
39506348 | 5671 | lookup_named_face (f, symbol, c) |
82641697 GM |
5672 | struct frame *f; |
5673 | Lisp_Object symbol; | |
39506348 | 5674 | int c; |
82641697 GM |
5675 | { |
5676 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5677 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5678 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5679 | ||
b5de343d GM |
5680 | if (default_face == NULL) |
5681 | { | |
5682 | if (!realize_basic_faces (f)) | |
5683 | return -1; | |
5684 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5685 | } | |
5686 | ||
82641697 GM |
5687 | get_lface_attributes (f, symbol, symbol_attrs, 1); |
5688 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5689 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5690 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
5691 | } |
5692 | ||
5693 | ||
5694 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
5695 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
5696 | ||
5697 | int | |
5698 | ascii_face_of_lisp_face (f, lface_id) | |
5699 | struct frame *f; | |
5700 | int lface_id; | |
5701 | { | |
5702 | int face_id; | |
178c5d9c | 5703 | |
82641697 GM |
5704 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
5705 | { | |
5706 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
39506348 | 5707 | face_id = lookup_named_face (f, face_name, 0); |
82641697 GM |
5708 | } |
5709 | else | |
5710 | face_id = -1; | |
5711 | ||
5712 | return face_id; | |
5713 | } | |
5714 | ||
5715 | ||
5716 | /* Return a face for charset ASCII that is like the face with id | |
5717 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
5718 | STEPS < 0 means larger. Value is the id of the face. */ | |
5719 | ||
5720 | int | |
5721 | smaller_face (f, face_id, steps) | |
5722 | struct frame *f; | |
5723 | int face_id, steps; | |
39506348 | 5724 | { |
c3cee013 | 5725 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5726 | struct face *face; |
5727 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5728 | int pt, last_pt, last_height; | |
5729 | int delta; | |
5730 | int new_face_id; | |
5731 | struct face *new_face; | |
5732 | ||
5733 | /* If not called for an X frame, just return the original face. */ | |
5734 | if (FRAME_TERMCAP_P (f)) | |
5735 | return face_id; | |
5736 | ||
5737 | /* Try in increments of 1/2 pt. */ | |
5738 | delta = steps < 0 ? 5 : -5; | |
5739 | steps = abs (steps); | |
178c5d9c | 5740 | |
82641697 GM |
5741 | face = FACE_FROM_ID (f, face_id); |
5742 | bcopy (face->lface, attrs, sizeof attrs); | |
5743 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5744 | new_face_id = face_id; | |
5745 | last_height = FONT_HEIGHT (face->font); | |
5746 | ||
5747 | while (steps | |
5748 | && pt + delta > 0 | |
5749 | /* Give up if we cannot find a font within 10pt. */ | |
5750 | && abs (last_pt - pt) < 100) | |
5751 | { | |
5752 | /* Look up a face for a slightly smaller/larger font. */ | |
5753 | pt += delta; | |
5754 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 5755 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
5756 | new_face = FACE_FROM_ID (f, new_face_id); |
5757 | ||
5758 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
5759 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
5760 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
5761 | { |
5762 | --steps; | |
5763 | last_height = FONT_HEIGHT (new_face->font); | |
5764 | last_pt = pt; | |
5765 | } | |
5766 | } | |
5767 | ||
5768 | return new_face_id; | |
5769 | ||
c3cee013 | 5770 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5771 | |
5772 | return face_id; | |
178c5d9c | 5773 | |
c3cee013 | 5774 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5775 | } |
5776 | ||
5777 | ||
5778 | /* Return a face for charset ASCII that is like the face with id | |
5779 | FACE_ID on frame F, but has height HEIGHT. */ | |
5780 | ||
5781 | int | |
5782 | face_with_height (f, face_id, height) | |
5783 | struct frame *f; | |
5784 | int face_id; | |
5785 | int height; | |
5786 | { | |
c3cee013 | 5787 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5788 | struct face *face; |
5789 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5790 | ||
5791 | if (FRAME_TERMCAP_P (f) | |
5792 | || height <= 0) | |
5793 | return face_id; | |
5794 | ||
5795 | face = FACE_FROM_ID (f, face_id); | |
5796 | bcopy (face->lface, attrs, sizeof attrs); | |
5797 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5798 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5799 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 5800 | |
82641697 GM |
5801 | return face_id; |
5802 | } | |
5803 | ||
b5de343d | 5804 | |
44747bd0 | 5805 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5806 | frame F suitable for displaying character C, and use attributes of |
5807 | the face FACE_ID for attributes that aren't completely specified by | |
5808 | SYMBOL. This is like lookup_named_face, except that the default | |
5809 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5810 | is assumed to be already realized. */ | |
44747bd0 EZ |
5811 | |
5812 | int | |
39506348 | 5813 | lookup_derived_face (f, symbol, c, face_id) |
44747bd0 EZ |
5814 | struct frame *f; |
5815 | Lisp_Object symbol; | |
39506348 | 5816 | int c; |
44747bd0 EZ |
5817 | int face_id; |
5818 | { | |
5819 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5820 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5821 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5822 | ||
5823 | if (!default_face) | |
5824 | abort (); | |
5825 | ||
5826 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5827 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5828 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5829 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5830 | } |
5831 | ||
f6608d5c RS |
5832 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
5833 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 5834 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
5835 | (plist) |
5836 | Lisp_Object plist; | |
5837 | { | |
5838 | Lisp_Object lface; | |
5839 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
5840 | Qunspecified); | |
5841 | merge_face_vector_with_property (XFRAME (selected_frame), | |
5842 | XVECTOR (lface)->contents, | |
5843 | plist); | |
5844 | return lface; | |
5845 | } | |
5846 | ||
82641697 GM |
5847 | |
5848 | \f | |
5849 | /*********************************************************************** | |
5850 | Font selection | |
5851 | ***********************************************************************/ | |
5852 | ||
5853 | DEFUN ("internal-set-font-selection-order", | |
5854 | Finternal_set_font_selection_order, | |
5855 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 5856 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
5857 | ORDER must be a list of length 4 containing the symbols `:width', |
5858 | `:height', `:weight', and `:slant'. Face attributes appearing | |
5859 | first in ORDER are matched first, e.g. if `:height' appears before | |
5860 | `:weight' in ORDER, font selection first tries to find a font with | |
5861 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
5862 | Value is ORDER. */) |
5863 | (order) | |
228299fa | 5864 | Lisp_Object order; |
82641697 GM |
5865 | { |
5866 | Lisp_Object list; | |
5867 | int i; | |
a08332c0 | 5868 | int indices[DIM (font_sort_order)]; |
178c5d9c | 5869 | |
b7826503 | 5870 | CHECK_LIST (order); |
82641697 GM |
5871 | bzero (indices, sizeof indices); |
5872 | i = 0; | |
5873 | ||
5874 | for (list = order; | |
5875 | CONSP (list) && i < DIM (indices); | |
5876 | list = XCDR (list), ++i) | |
5877 | { | |
5878 | Lisp_Object attr = XCAR (list); | |
5879 | int xlfd; | |
5880 | ||
5881 | if (EQ (attr, QCwidth)) | |
5882 | xlfd = XLFD_SWIDTH; | |
5883 | else if (EQ (attr, QCheight)) | |
5884 | xlfd = XLFD_POINT_SIZE; | |
5885 | else if (EQ (attr, QCweight)) | |
5886 | xlfd = XLFD_WEIGHT; | |
5887 | else if (EQ (attr, QCslant)) | |
5888 | xlfd = XLFD_SLANT; | |
5889 | else | |
5890 | break; | |
5891 | ||
5892 | if (indices[i] != 0) | |
5893 | break; | |
5894 | indices[i] = xlfd; | |
5895 | } | |
5896 | ||
a08332c0 | 5897 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 5898 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
5899 | for (i = 0; i < DIM (font_sort_order); ++i) |
5900 | if (indices[i] == 0) | |
5901 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
5902 | |
5903 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5904 | { | |
5905 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5906 | free_all_realized_faces (Qnil); | |
5907 | } | |
178c5d9c | 5908 | |
82641697 GM |
5909 | return Qnil; |
5910 | } | |
5911 | ||
5912 | ||
5913 | DEFUN ("internal-set-alternative-font-family-alist", | |
5914 | Finternal_set_alternative_font_family_alist, | |
5915 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 5916 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
5917 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5918 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
5919 | be found. Value is ALIST. */) |
5920 | (alist) | |
82641697 GM |
5921 | Lisp_Object alist; |
5922 | { | |
b7826503 | 5923 | CHECK_LIST (alist); |
82641697 GM |
5924 | Vface_alternative_font_family_alist = alist; |
5925 | free_all_realized_faces (Qnil); | |
5926 | return alist; | |
5927 | } | |
5928 | ||
5929 | ||
32fcc231 GM |
5930 | DEFUN ("internal-set-alternative-font-registry-alist", |
5931 | Finternal_set_alternative_font_registry_alist, | |
5932 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 5933 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
5934 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
5935 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
5936 | be found. Value is ALIST. */) |
5937 | (alist) | |
32fcc231 GM |
5938 | Lisp_Object alist; |
5939 | { | |
b7826503 | 5940 | CHECK_LIST (alist); |
32fcc231 GM |
5941 | Vface_alternative_font_registry_alist = alist; |
5942 | free_all_realized_faces (Qnil); | |
5943 | return alist; | |
5944 | } | |
5945 | ||
5946 | ||
c3cee013 | 5947 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5948 | |
82641697 GM |
5949 | /* Value is non-zero if FONT is the name of a scalable font. The |
5950 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5951 | are zero for scalable fonts. Intlfonts contain at least one | |
5952 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5953 | just test average width. */ | |
5954 | ||
5955 | static int | |
5956 | font_scalable_p (font) | |
5957 | struct font_name *font; | |
5958 | { | |
5959 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
5960 | return (*s == '0' && *(s + 1) == '\0') |
5961 | #ifdef WINDOWSNT | |
5962 | /* Windows implementation of XLFD is slightly broken for backward | |
5963 | compatibility with previous broken versions, so test for | |
5964 | wildcards as well as 0. */ | |
5965 | || *s == '*' | |
5966 | #endif | |
5967 | ; | |
82641697 GM |
5968 | } |
5969 | ||
5970 | ||
8e1b21a7 KH |
5971 | /* Ignore the difference of font point size less than this value. */ |
5972 | ||
5973 | #define FONT_POINT_SIZE_QUANTUM 5 | |
5974 | ||
82641697 GM |
5975 | /* Value is non-zero if FONT1 is a better match for font attributes |
5976 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5977 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
5978 | sizes. AVGWIDTH, if not zero, is a specified font average width |
5979 | to compare with. */ | |
82641697 GM |
5980 | |
5981 | static int | |
a08332c0 | 5982 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
5983 | int *values; |
5984 | struct font_name *font1, *font2; | |
a08332c0 | 5985 | int compare_pt_p, avgwidth; |
82641697 GM |
5986 | { |
5987 | int i; | |
178c5d9c | 5988 | |
a08332c0 | 5989 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
5990 | { |
5991 | int xlfd_idx = font_sort_order[i]; | |
5992 | ||
5993 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5994 | { | |
5995 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5996 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
178c5d9c | 5997 | |
8e1b21a7 KH |
5998 | if (xlfd_idx == XLFD_POINT_SIZE |
5999 | && abs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) | |
6000 | continue; | |
82641697 GM |
6001 | if (delta1 > delta2) |
6002 | return 0; | |
6003 | else if (delta1 < delta2) | |
6004 | return 1; | |
6005 | else | |
6006 | { | |
6007 | /* The difference may be equal because, e.g., the face | |
6008 | specifies `italic' but we have only `regular' and | |
6009 | `oblique'. Prefer `oblique' in this case. */ | |
6010 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
6011 | && font1->numeric[xlfd_idx] > values[i] | |
6012 | && font2->numeric[xlfd_idx] < values[i]) | |
6013 | return 1; | |
6014 | } | |
6015 | } | |
6016 | } | |
178c5d9c | 6017 | |
a08332c0 GM |
6018 | if (avgwidth) |
6019 | { | |
6020 | int delta1 = abs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); | |
6021 | int delta2 = abs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
6022 | if (delta1 > delta2) | |
6023 | return 0; | |
6024 | else if (delta1 < delta2) | |
6025 | return 1; | |
6026 | } | |
6027 | ||
6028 | return font1->registry_priority < font2->registry_priority; | |
82641697 GM |
6029 | } |
6030 | ||
6031 | ||
82641697 GM |
6032 | /* Value is non-zero if FONT is an exact match for face attributes in |
6033 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
6034 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
6035 | with. */ | |
82641697 GM |
6036 | |
6037 | static int | |
a08332c0 | 6038 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
6039 | int *specified; |
6040 | struct font_name *font; | |
a08332c0 | 6041 | int avgwidth; |
82641697 GM |
6042 | { |
6043 | int i; | |
178c5d9c | 6044 | |
a08332c0 | 6045 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6046 | if (specified[i] != font->numeric[font_sort_order[i]]) |
6047 | break; | |
6048 | ||
a08332c0 GM |
6049 | return (i == DIM (font_sort_order) |
6050 | && (avgwidth <= 0 | |
6051 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
6052 | } |
6053 | ||
6054 | ||
6055 | /* Value is the name of a scaled font, generated from scalable font | |
6056 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
6057 | Value is allocated from heap. */ | |
6058 | ||
6059 | static char * | |
6060 | build_scalable_font_name (f, font, specified_pt) | |
6061 | struct frame *f; | |
6062 | struct font_name *font; | |
6063 | int specified_pt; | |
6064 | { | |
6065 | char point_size[20], pixel_size[20]; | |
6066 | int pixel_value; | |
6067 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
6068 | double pt; | |
6069 | ||
6070 | /* If scalable font is for a specific resolution, compute | |
6071 | the point size we must specify from the resolution of | |
6072 | the display and the specified resolution of the font. */ | |
6073 | if (font->numeric[XLFD_RESY] != 0) | |
6074 | { | |
6075 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
c660ce4e | 6076 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt; |
82641697 GM |
6077 | } |
6078 | else | |
6079 | { | |
6080 | pt = specified_pt; | |
c660ce4e | 6081 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt; |
82641697 | 6082 | } |
178c5d9c | 6083 | |
82641697 GM |
6084 | /* Set point size of the font. */ |
6085 | sprintf (point_size, "%d", (int) pt); | |
6086 | font->fields[XLFD_POINT_SIZE] = point_size; | |
6087 | font->numeric[XLFD_POINT_SIZE] = pt; | |
178c5d9c | 6088 | |
82641697 GM |
6089 | /* Set pixel size. */ |
6090 | sprintf (pixel_size, "%d", pixel_value); | |
6091 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
6092 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 6093 | |
82641697 GM |
6094 | /* If font doesn't specify its resolution, use the |
6095 | resolution of the display. */ | |
6096 | if (font->numeric[XLFD_RESY] == 0) | |
6097 | { | |
6098 | char buffer[20]; | |
6099 | sprintf (buffer, "%d", (int) resy); | |
6100 | font->fields[XLFD_RESY] = buffer; | |
6101 | font->numeric[XLFD_RESY] = resy; | |
6102 | } | |
178c5d9c | 6103 | |
82641697 GM |
6104 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
6105 | { | |
6106 | char buffer[20]; | |
6107 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
6108 | sprintf (buffer, "%d", resx); | |
6109 | font->fields[XLFD_RESX] = buffer; | |
6110 | font->numeric[XLFD_RESX] = resx; | |
6111 | } | |
6112 | ||
6113 | return build_font_name (font); | |
6114 | } | |
6115 | ||
6116 | ||
6117 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
6118 | can't run a Lisp function here since this function may be called | |
6119 | with input blocked. */ | |
6120 | ||
6121 | static int | |
702a1e8e | 6122 | may_use_scalable_font_p (font) |
53c208f6 | 6123 | const char *font; |
82641697 GM |
6124 | { |
6125 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
6126 | return 1; | |
6127 | else if (CONSP (Vscalable_fonts_allowed)) | |
6128 | { | |
6129 | Lisp_Object tail, regexp; | |
178c5d9c | 6130 | |
82641697 GM |
6131 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
6132 | { | |
6133 | regexp = XCAR (tail); | |
6134 | if (STRINGP (regexp) | |
702a1e8e | 6135 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
6136 | return 1; |
6137 | } | |
6138 | } | |
178c5d9c | 6139 | |
82641697 GM |
6140 | return 0; |
6141 | } | |
6142 | ||
82641697 GM |
6143 | |
6144 | ||
2e6621ca GM |
6145 | /* Return the name of the best matching font for face attributes ATTRS |
6146 | in the array of font_name structures FONTS which contains NFONTS | |
6147 | elements. WIDTH_RATIO is a factor with which to multiply average | |
6148 | widths if ATTRS specifies such a width. | |
6149 | ||
6150 | Value is a font name which is allocated from the heap. FONTS is | |
6ae2cd57 MB |
6151 | freed by this function. |
6152 | ||
6153 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6154 | indicate whether the resulting font should be drawn using overstrike | |
6155 | to simulate bold-face. */ | |
82641697 GM |
6156 | |
6157 | static char * | |
6ae2cd57 | 6158 | best_matching_font (f, attrs, fonts, nfonts, width_ratio, needs_overstrike) |
82641697 GM |
6159 | struct frame *f; |
6160 | Lisp_Object *attrs; | |
6161 | struct font_name *fonts; | |
6162 | int nfonts; | |
2e6621ca | 6163 | int width_ratio; |
6ae2cd57 | 6164 | int *needs_overstrike; |
82641697 GM |
6165 | { |
6166 | char *font_name; | |
6167 | struct font_name *best; | |
334a2e2a | 6168 | int i, pt = 0; |
a08332c0 GM |
6169 | int specified[5]; |
6170 | int exact_p, avgwidth; | |
82641697 GM |
6171 | |
6172 | if (nfonts == 0) | |
6173 | return NULL; | |
6174 | ||
6175 | /* Make specified font attributes available in `specified', | |
6176 | indexed by sort order. */ | |
6177 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6178 | { | |
6179 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 6180 | |
82641697 GM |
6181 | if (xlfd_idx == XLFD_SWIDTH) |
6182 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
6183 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
6184 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6185 | else if (xlfd_idx == XLFD_WEIGHT) | |
6186 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6187 | else if (xlfd_idx == XLFD_SLANT) | |
6188 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6189 | else | |
6190 | abort (); | |
6191 | } | |
6192 | ||
a08332c0 GM |
6193 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
6194 | ? 0 | |
2e6621ca | 6195 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 6196 | |
82641697 | 6197 | exact_p = 0; |
178c5d9c | 6198 | |
6ae2cd57 MB |
6199 | if (needs_overstrike) |
6200 | *needs_overstrike = 0; | |
6201 | ||
82641697 GM |
6202 | /* Start with the first non-scalable font in the list. */ |
6203 | for (i = 0; i < nfonts; ++i) | |
6204 | if (!font_scalable_p (fonts + i)) | |
6205 | break; | |
6206 | ||
6207 | /* Find the best match among the non-scalable fonts. */ | |
6208 | if (i < nfonts) | |
6209 | { | |
6210 | best = fonts + i; | |
178c5d9c | 6211 | |
82641697 GM |
6212 | for (i = 1; i < nfonts; ++i) |
6213 | if (!font_scalable_p (fonts + i) | |
a08332c0 | 6214 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) |
82641697 GM |
6215 | { |
6216 | best = fonts + i; | |
6217 | ||
a08332c0 | 6218 | exact_p = exact_face_match_p (specified, best, avgwidth); |
82641697 GM |
6219 | if (exact_p) |
6220 | break; | |
6221 | } | |
82641697 GM |
6222 | } |
6223 | else | |
6224 | best = NULL; | |
6225 | ||
6226 | /* Unless we found an exact match among non-scalable fonts, see if | |
6227 | we can find a better match among scalable fonts. */ | |
6228 | if (!exact_p) | |
6229 | { | |
6230 | /* A scalable font is better if | |
6231 | ||
6232 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 6233 | |
82641697 GM |
6234 | 2. the best non-scalable font doesn't have the required |
6235 | point size, and the scalable fonts weight, slant, swidth | |
6236 | isn't worse. */ | |
6237 | ||
6238 | int non_scalable_has_exact_height_p; | |
6239 | ||
6240 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
6241 | non_scalable_has_exact_height_p = 1; | |
6242 | else | |
6243 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 6244 | |
82641697 GM |
6245 | for (i = 0; i < nfonts; ++i) |
6246 | if (font_scalable_p (fonts + i)) | |
6247 | { | |
6248 | if (best == NULL | |
a08332c0 | 6249 | || better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 6250 | || (!non_scalable_has_exact_height_p |
a08332c0 | 6251 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
82641697 GM |
6252 | best = fonts + i; |
6253 | } | |
6ae2cd57 MB |
6254 | |
6255 | if (needs_overstrike) | |
6256 | { | |
6257 | enum xlfd_weight want_weight = specified[XLFD_WEIGHT]; | |
6258 | enum xlfd_weight got_weight = best->numeric[XLFD_WEIGHT]; | |
6259 | ||
6260 | if (want_weight > XLFD_WEIGHT_MEDIUM && want_weight > got_weight) | |
6261 | { | |
6262 | /* We want a bold font, but didn't get one; try to use | |
6263 | overstriking instead to simulate bold-face. However, | |
6264 | don't overstrike an already-bold fontn unless the | |
6265 | desired weight grossly exceeds the available weight. */ | |
6266 | if (got_weight > XLFD_WEIGHT_MEDIUM) | |
6267 | *needs_overstrike = (got_weight - want_weight) > 2; | |
6268 | else | |
6269 | *needs_overstrike = 1; | |
6270 | } | |
6271 | } | |
82641697 GM |
6272 | } |
6273 | ||
6274 | if (font_scalable_p (best)) | |
6275 | font_name = build_scalable_font_name (f, best, pt); | |
6276 | else | |
6277 | font_name = build_font_name (best); | |
178c5d9c | 6278 | |
82641697 GM |
6279 | /* Free font_name structures. */ |
6280 | free_font_names (fonts, nfonts); | |
178c5d9c | 6281 | |
82641697 GM |
6282 | return font_name; |
6283 | } | |
6284 | ||
6285 | ||
3cf80731 SM |
6286 | /* Get a list of matching fonts on frame F, considering FAMILY |
6287 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
6288 | |
6289 | FAMILY is the font family whose alternatives are considered. | |
6290 | ||
6291 | REGISTRY, if a string, specifies a font registry and encoding to | |
6292 | match. A value of nil means include fonts of any registry and | |
6293 | encoding. | |
177c0ea7 | 6294 | |
4a529c42 GM |
6295 | Return in *FONTS a pointer to a vector of font_name structures for |
6296 | the fonts matched. Value is the number of fonts found. */ | |
6297 | ||
6298 | static int | |
6299 | try_alternative_families (f, family, registry, fonts) | |
6300 | struct frame *f; | |
6301 | Lisp_Object family, registry; | |
6302 | struct font_name **fonts; | |
6303 | { | |
6304 | Lisp_Object alter; | |
6305 | int nfonts = 0; | |
6306 | ||
3cf80731 SM |
6307 | nfonts = font_list (f, Qnil, family, registry, fonts); |
6308 | if (nfonts == 0) | |
4a529c42 | 6309 | { |
3cf80731 SM |
6310 | /* Try alternative font families. */ |
6311 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
6312 | if (CONSP (alter)) | |
6313 | { | |
6314 | for (alter = XCDR (alter); | |
6315 | CONSP (alter) && nfonts == 0; | |
6316 | alter = XCDR (alter)) | |
6317 | { | |
6318 | if (STRINGP (XCAR (alter))) | |
6319 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
6320 | } | |
6321 | } | |
177c0ea7 | 6322 | |
f9a45bb3 KH |
6323 | /* Try all scalable fonts before giving up. */ |
6324 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
4a529c42 | 6325 | { |
331379bf | 6326 | int count = SPECPDL_INDEX (); |
3cf80731 SM |
6327 | specbind (Qscalable_fonts_allowed, Qt); |
6328 | nfonts = try_alternative_families (f, family, registry, fonts); | |
6329 | unbind_to (count, Qnil); | |
4a529c42 GM |
6330 | } |
6331 | } | |
4a529c42 GM |
6332 | return nfonts; |
6333 | } | |
6334 | ||
6335 | ||
702a1e8e GM |
6336 | /* Get a list of matching fonts on frame F. |
6337 | ||
3cf80731 SM |
6338 | FAMILY, if a string, specifies a font family derived from the fontset. |
6339 | It is only used if the face does not specify any family in ATTRS or | |
6340 | if we cannot find any font of the face's family. | |
702a1e8e GM |
6341 | |
6342 | REGISTRY, if a string, specifies a font registry and encoding to | |
6343 | match. A value of nil means include fonts of any registry and | |
6344 | encoding. | |
177c0ea7 | 6345 | |
54580ab2 KH |
6346 | If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY. |
6347 | Otherwise, prefer FAMILY. | |
6348 | ||
702a1e8e GM |
6349 | Return in *FONTS a pointer to a vector of font_name structures for |
6350 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
6351 | |
6352 | static int | |
54580ab2 | 6353 | try_font_list (f, attrs, family, registry, fonts, prefer_face_family) |
82641697 GM |
6354 | struct frame *f; |
6355 | Lisp_Object *attrs; | |
702a1e8e | 6356 | Lisp_Object family, registry; |
82641697 | 6357 | struct font_name **fonts; |
54580ab2 | 6358 | int prefer_face_family; |
82641697 | 6359 | { |
4a529c42 | 6360 | int nfonts = 0; |
3cf80731 | 6361 | Lisp_Object face_family = attrs[LFACE_FAMILY_INDEX]; |
54580ab2 KH |
6362 | Lisp_Object try_family; |
6363 | ||
e21880c6 | 6364 | try_family = (prefer_face_family || NILP (family)) ? face_family : family; |
82641697 | 6365 | |
54580ab2 KH |
6366 | if (STRINGP (try_family)) |
6367 | nfonts = try_alternative_families (f, try_family, registry, fonts); | |
3cf80731 | 6368 | |
f00691a3 AC |
6369 | #ifdef MAC_OS |
6370 | /* When realizing the default face and a font spec does not matched | |
6371 | exactly, Emacs looks for ones with the same registry as the | |
6372 | default font. On the Mac, this is mac-roman, which does not work | |
6373 | if the family is -etl-fixed, e.g. The following widens the | |
6374 | choices and fixes that problem. */ | |
54580ab2 | 6375 | if (nfonts == 0 && STRINGP (try_family) && STRINGP (registry) |
d5db4077 | 6376 | && xstricmp (SDATA (registry), "mac-roman") == 0) |
54580ab2 | 6377 | nfonts = try_alternative_families (f, try_family, Qnil, fonts); |
f00691a3 AC |
6378 | #endif |
6379 | ||
e21880c6 | 6380 | if (EQ (try_family, family)) |
54580ab2 KH |
6381 | family = face_family; |
6382 | ||
6383 | if (nfonts == 0 && STRINGP (family)) | |
3cf80731 | 6384 | nfonts = try_alternative_families (f, family, registry, fonts); |
178c5d9c | 6385 | |
3cf80731 | 6386 | /* Try font family of the default face or "fixed". */ |
4a529c42 | 6387 | if (nfonts == 0) |
82641697 | 6388 | { |
3cf80731 SM |
6389 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6390 | if (default_face) | |
6391 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
6392 | else | |
6393 | family = build_string ("fixed"); | |
4a529c42 | 6394 | nfonts = font_list (f, Qnil, family, registry, fonts); |
82641697 | 6395 | } |
177c0ea7 | 6396 | |
3cf80731 SM |
6397 | /* Try any family with the given registry. */ |
6398 | if (nfonts == 0) | |
6399 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); | |
82641697 GM |
6400 | |
6401 | return nfonts; | |
6402 | } | |
6403 | ||
82641697 | 6404 | |
39506348 KH |
6405 | /* Return the fontset id of the base fontset name or alias name given |
6406 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
6407 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
6408 | |
6409 | static int | |
39506348 | 6410 | face_fontset (attrs) |
82641697 GM |
6411 | Lisp_Object *attrs; |
6412 | { | |
39506348 | 6413 | Lisp_Object name; |
178c5d9c | 6414 | |
39506348 KH |
6415 | name = attrs[LFACE_FONT_INDEX]; |
6416 | if (!STRINGP (name)) | |
6417 | return -1; | |
6418 | return fs_query_fontset (name, 0); | |
82641697 GM |
6419 | } |
6420 | ||
6421 | ||
39506348 KH |
6422 | /* Choose a name of font to use on frame F to display character C with |
6423 | Lisp face attributes specified by ATTRS. The font name is | |
6424 | determined by the font-related attributes in ATTRS and the name | |
6425 | pattern for C in FONTSET. Value is the font name which is | |
6426 | allocated from the heap and must be freed by the caller, or NULL if | |
6427 | we can get no information about the font name of C. It is assured | |
6428 | that we always get some information for a single byte | |
6ae2cd57 MB |
6429 | character. |
6430 | ||
6431 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6432 | indicate whether the resulting font should be drawn using overstrike | |
6433 | to simulate bold-face. */ | |
82641697 GM |
6434 | |
6435 | static char * | |
6ae2cd57 | 6436 | choose_face_font (f, attrs, fontset, c, needs_overstrike) |
82641697 GM |
6437 | struct frame *f; |
6438 | Lisp_Object *attrs; | |
39506348 | 6439 | int fontset, c; |
6ae2cd57 | 6440 | int *needs_overstrike; |
82641697 | 6441 | { |
39506348 | 6442 | Lisp_Object pattern; |
82641697 | 6443 | char *font_name = NULL; |
82641697 | 6444 | struct font_name *fonts; |
2e6621ca | 6445 | int nfonts, width_ratio; |
178c5d9c | 6446 | |
39506348 KH |
6447 | /* Get (foundry and) family name and registry (and encoding) name of |
6448 | a font for C. */ | |
6449 | pattern = fontset_font_pattern (f, fontset, c); | |
6450 | if (NILP (pattern)) | |
6451 | { | |
6452 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
6453 | return NULL; | |
6454 | } | |
177c0ea7 | 6455 | |
39506348 KH |
6456 | /* If what we got is a name pattern, return it. */ |
6457 | if (STRINGP (pattern)) | |
d5db4077 | 6458 | return xstrdup (SDATA (pattern)); |
82641697 | 6459 | |
178c5d9c | 6460 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 6461 | best match for the specified face attributes from it. */ |
54580ab2 KH |
6462 | nfonts = try_font_list (f, attrs, XCAR (pattern), XCDR (pattern), &fonts, |
6463 | (SINGLE_BYTE_CHAR_P (c) | |
6464 | || CHAR_CHARSET (c) == charset_latin_iso8859_1)); | |
2e6621ca GM |
6465 | width_ratio = (SINGLE_BYTE_CHAR_P (c) |
6466 | ? 1 | |
6467 | : CHARSET_WIDTH (CHAR_CHARSET (c))); | |
6ae2cd57 MB |
6468 | font_name = best_matching_font (f, attrs, fonts, nfonts, width_ratio, |
6469 | needs_overstrike); | |
82641697 GM |
6470 | return font_name; |
6471 | } | |
6472 | ||
c3cee013 | 6473 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6474 | |
6475 | ||
6476 | \f | |
6477 | /*********************************************************************** | |
6478 | Face Realization | |
6479 | ***********************************************************************/ | |
6480 | ||
6481 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
6482 | of F don't contain enough information needed to realize the default | |
6483 | face. */ | |
6484 | ||
6485 | static int | |
6486 | realize_basic_faces (f) | |
6487 | struct frame *f; | |
6488 | { | |
6489 | int success_p = 0; | |
331379bf | 6490 | int count = SPECPDL_INDEX (); |
17e8204b | 6491 | |
04386463 GM |
6492 | /* Block input here so that we won't be surprised by an X expose |
6493 | event, for instance, without having the faces set up. */ | |
17e8204b | 6494 | BLOCK_INPUT; |
eeffb293 | 6495 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 6496 | |
82641697 GM |
6497 | if (realize_default_face (f)) |
6498 | { | |
92610620 | 6499 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 6500 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 6501 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 6502 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 6503 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
6504 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
6505 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
6506 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
6507 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 6508 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
563f68f1 | 6509 | |
b5de343d | 6510 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 6511 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 6512 | { |
ceeda019 | 6513 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 6514 | #ifdef USE_X_TOOLKIT |
bce72079 | 6515 | x_update_menu_appearance (f); |
a03ad468 | 6516 | #endif |
563f68f1 | 6517 | } |
177c0ea7 | 6518 | |
82641697 GM |
6519 | success_p = 1; |
6520 | } | |
6521 | ||
eeffb293 | 6522 | unbind_to (count, Qnil); |
17e8204b | 6523 | UNBLOCK_INPUT; |
82641697 GM |
6524 | return success_p; |
6525 | } | |
6526 | ||
6527 | ||
6528 | /* Realize the default face on frame F. If the face is not fully | |
6529 | specified, make it fully-specified. Attributes of the default face | |
6530 | that are not explicitly specified are taken from frame parameters. */ | |
6531 | ||
6532 | static int | |
6533 | realize_default_face (f) | |
6534 | struct frame *f; | |
6535 | { | |
6536 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6537 | Lisp_Object lface; | |
6538 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6539 | Lisp_Object frame_font; |
6540 | struct face *face; | |
82641697 GM |
6541 | |
6542 | /* If the `default' face is not yet known, create it. */ | |
6543 | lface = lface_from_face_name (f, Qdefault, 0); | |
6544 | if (NILP (lface)) | |
6545 | { | |
6546 | Lisp_Object frame; | |
6547 | XSETFRAME (frame, f); | |
6548 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
6549 | } | |
6550 | ||
c3cee013 JR |
6551 | #ifdef HAVE_WINDOW_SYSTEM |
6552 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
6553 | { |
6554 | /* Set frame_font to the value of the `font' frame parameter. */ | |
6555 | frame_font = Fassq (Qfont, f->param_alist); | |
6556 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
6557 | frame_font = XCDR (frame_font); | |
8cdeb3f2 | 6558 | set_lface_from_font_name (f, lface, frame_font, 1, 1); |
82641697 | 6559 | } |
c3cee013 | 6560 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6561 | |
44747bd0 | 6562 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
6563 | { |
6564 | LFACE_FAMILY (lface) = build_string ("default"); | |
6565 | LFACE_SWIDTH (lface) = Qnormal; | |
6566 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
6567 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
6568 | LFACE_WEIGHT (lface) = Qnormal; | |
6569 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
6570 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 6571 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 6572 | } |
178c5d9c | 6573 | |
82641697 GM |
6574 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
6575 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 6576 | |
82641697 GM |
6577 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
6578 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 6579 | |
82641697 GM |
6580 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
6581 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 6582 | |
82641697 GM |
6583 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
6584 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 6585 | |
82641697 GM |
6586 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
6587 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 6588 | |
82641697 GM |
6589 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
6590 | { | |
6591 | /* This function is called so early that colors are not yet | |
6592 | set in the frame parameter list. */ | |
6593 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 6594 | |
82641697 GM |
6595 | if (CONSP (color) && STRINGP (XCDR (color))) |
6596 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 6597 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6598 | return 0; |
e689ec06 | 6599 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6600 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 6601 | else |
82641697 GM |
6602 | abort (); |
6603 | } | |
178c5d9c | 6604 | |
82641697 GM |
6605 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
6606 | { | |
6607 | /* This function is called so early that colors are not yet | |
6608 | set in the frame parameter list. */ | |
6609 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
6610 | if (CONSP (color) && STRINGP (XCDR (color))) | |
6611 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 6612 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6613 | return 0; |
e689ec06 | 6614 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6615 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 6616 | else |
82641697 GM |
6617 | abort (); |
6618 | } | |
178c5d9c | 6619 | |
82641697 GM |
6620 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
6621 | LFACE_STIPPLE (lface) = Qnil; | |
6622 | ||
6623 | /* Realize the face; it must be fully-specified now. */ | |
6624 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
6625 | check_lface (lface); | |
6626 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 6627 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
6628 | return 1; |
6629 | } | |
6630 | ||
6631 | ||
6632 | /* Realize basic faces other than the default face in face cache C. | |
6633 | SYMBOL is the face name, ID is the face id the realized face must | |
6634 | have. The default face must have been realized already. */ | |
6635 | ||
6636 | static void | |
6637 | realize_named_face (f, symbol, id) | |
6638 | struct frame *f; | |
6639 | Lisp_Object symbol; | |
6640 | int id; | |
6641 | { | |
6642 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6643 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
6644 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6645 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6646 | struct face *new_face; | |
6647 | ||
6648 | /* The default face must exist and be fully specified. */ | |
6649 | get_lface_attributes (f, Qdefault, attrs, 1); | |
6650 | check_lface_attrs (attrs); | |
6651 | xassert (lface_fully_specified_p (attrs)); | |
6652 | ||
6653 | /* If SYMBOL isn't know as a face, create it. */ | |
6654 | if (NILP (lface)) | |
6655 | { | |
6656 | Lisp_Object frame; | |
6657 | XSETFRAME (frame, f); | |
6658 | lface = Finternal_make_lisp_face (symbol, frame); | |
6659 | } | |
6660 | ||
6661 | /* Merge SYMBOL's face with the default face. */ | |
6662 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
2c20458f | 6663 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
82641697 GM |
6664 | |
6665 | /* Realize the face. */ | |
39506348 | 6666 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
6667 | } |
6668 | ||
6669 | ||
6670 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6671 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
6672 | BASE_FACE is a face that has the same attributes. Otherwise, |
6673 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
6674 | ID of face to remove before caching the new face. Value is a | |
6675 | pointer to the newly created realized face. */ | |
82641697 GM |
6676 | |
6677 | static struct face * | |
39506348 KH |
6678 | realize_face (cache, attrs, c, base_face, former_face_id) |
6679 | struct face_cache *cache; | |
82641697 | 6680 | Lisp_Object *attrs; |
39506348 KH |
6681 | int c; |
6682 | struct face *base_face; | |
6683 | int former_face_id; | |
82641697 GM |
6684 | { |
6685 | struct face *face; | |
178c5d9c | 6686 | |
82641697 | 6687 | /* LFACE must be fully specified. */ |
39506348 | 6688 | xassert (cache != NULL); |
82641697 GM |
6689 | check_lface_attrs (attrs); |
6690 | ||
39506348 KH |
6691 | if (former_face_id >= 0 && cache->used > former_face_id) |
6692 | { | |
6693 | /* Remove the former face. */ | |
6694 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
6695 | uncache_face (cache, former_face); | |
6696 | free_realized_face (cache->f, former_face); | |
6697 | } | |
6698 | ||
6699 | if (FRAME_WINDOW_P (cache->f)) | |
6700 | face = realize_x_face (cache, attrs, c, base_face); | |
e689ec06 | 6701 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
39506348 | 6702 | face = realize_tty_face (cache, attrs, c); |
82641697 GM |
6703 | else |
6704 | abort (); | |
6705 | ||
39506348 KH |
6706 | /* Insert the new face. */ |
6707 | cache_face (cache, face, lface_hash (attrs)); | |
6708 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 6709 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
6710 | load_face_font (cache->f, face, c); |
6711 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
6712 | return face; |
6713 | } | |
6714 | ||
6715 | ||
6716 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6717 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
6718 | a multibyte character, BASE_FACE is a face that has the same |
6719 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
6720 | doesn't share font with the default face, a fontname is allocated | |
6721 | from the heap and set in `font_name' of the new face, but it is not | |
6722 | yet loaded here. Value is a pointer to the newly created realized | |
6723 | face. */ | |
82641697 GM |
6724 | |
6725 | static struct face * | |
39506348 KH |
6726 | realize_x_face (cache, attrs, c, base_face) |
6727 | struct face_cache *cache; | |
82641697 | 6728 | Lisp_Object *attrs; |
39506348 KH |
6729 | int c; |
6730 | struct face *base_face; | |
82641697 | 6731 | { |
c3cee013 | 6732 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6733 | struct face *face, *default_face; |
78d2079c | 6734 | struct frame *f; |
82641697 | 6735 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 6736 | |
39506348 KH |
6737 | xassert (FRAME_WINDOW_P (cache->f)); |
6738 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 6739 | || base_face); |
82641697 GM |
6740 | |
6741 | /* Allocate a new realized face. */ | |
39506348 KH |
6742 | face = make_realized_face (attrs); |
6743 | ||
6744 | f = cache->f; | |
6745 | ||
6746 | /* If C is a multibyte character, we share all face attirbutes with | |
6747 | BASE_FACE including the realized fontset. But, we must load a | |
6748 | different font. */ | |
6749 | if (!SINGLE_BYTE_CHAR_P (c)) | |
6750 | { | |
6751 | bcopy (base_face, face, sizeof *face); | |
6752 | face->gc = 0; | |
e911049b GM |
6753 | |
6754 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
28a072fe | 6755 | face->colors_copied_bitwise_p = 1; |
178c5d9c | 6756 | |
e911049b GM |
6757 | /* to force realize_face to load font */ |
6758 | face->font = NULL; | |
39506348 KH |
6759 | return face; |
6760 | } | |
6761 | ||
6762 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
6763 | |
6764 | /* Determine the font to use. Most of the time, the font will be | |
6765 | the same as the font of the default face, so try that first. */ | |
6766 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6767 | if (default_face | |
39506348 | 6768 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
6769 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
6770 | { | |
6771 | face->font = default_face->font; | |
6772 | face->fontset = default_face->fontset; | |
6773 | face->font_info_id = default_face->font_info_id; | |
6774 | face->font_name = default_face->font_name; | |
39506348 | 6775 | face->ascii_face = face; |
82641697 | 6776 | |
39506348 KH |
6777 | /* But, as we can't share the fontset, make a new realized |
6778 | fontset that has the same base fontset as of the default | |
6779 | face. */ | |
6780 | face->fontset | |
6781 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
6782 | } |
6783 | else | |
6784 | { | |
39506348 | 6785 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
6786 | the base of a new realized fontset. Otherwise, use the same |
6787 | base fontset as of the default face. The base determines | |
6788 | registry and encoding of a font. It may also determine | |
6789 | foundry and family. The other fields of font name pattern | |
6790 | are constructed from ATTRS. */ | |
6791 | int fontset = face_fontset (attrs); | |
6792 | ||
178c5d9c | 6793 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
6794 | fontset = default_face->fontset; |
6795 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 6796 | face->font = NULL; /* to force realize_face to load font */ |
82641697 GM |
6797 | } |
6798 | ||
6799 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 6800 | |
82641697 | 6801 | load_face_colors (f, face, attrs); |
660ed669 | 6802 | |
82641697 GM |
6803 | /* Set up box. */ |
6804 | box = attrs[LFACE_BOX_INDEX]; | |
6805 | if (STRINGP (box)) | |
cb637678 | 6806 | { |
82641697 GM |
6807 | /* A simple box of line width 1 drawn in color given by |
6808 | the string. */ | |
6809 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
6810 | LFACE_BOX_INDEX); | |
6811 | face->box = FACE_SIMPLE_BOX; | |
6812 | face->box_line_width = 1; | |
cb637678 | 6813 | } |
82641697 | 6814 | else if (INTEGERP (box)) |
42120bc7 | 6815 | { |
82641697 GM |
6816 | /* Simple box of specified line width in foreground color of the |
6817 | face. */ | |
89624b8b | 6818 | xassert (XINT (box) != 0); |
82641697 | 6819 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 6820 | face->box_line_width = XINT (box); |
82641697 GM |
6821 | face->box_color = face->foreground; |
6822 | face->box_color_defaulted_p = 1; | |
6823 | } | |
6824 | else if (CONSP (box)) | |
6825 | { | |
6826 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
6827 | being one of `raised' or `sunken'. */ | |
6828 | face->box = FACE_SIMPLE_BOX; | |
6829 | face->box_color = face->foreground; | |
6830 | face->box_color_defaulted_p = 1; | |
6831 | face->box_line_width = 1; | |
6832 | ||
6833 | while (CONSP (box)) | |
42120bc7 | 6834 | { |
82641697 GM |
6835 | Lisp_Object keyword, value; |
6836 | ||
6837 | keyword = XCAR (box); | |
6838 | box = XCDR (box); | |
6839 | ||
6840 | if (!CONSP (box)) | |
6841 | break; | |
6842 | value = XCAR (box); | |
6843 | box = XCDR (box); | |
6844 | ||
6845 | if (EQ (keyword, QCline_width)) | |
6846 | { | |
89624b8b KH |
6847 | if (INTEGERP (value) && XINT (value) != 0) |
6848 | face->box_line_width = XINT (value); | |
82641697 GM |
6849 | } |
6850 | else if (EQ (keyword, QCcolor)) | |
6851 | { | |
6852 | if (STRINGP (value)) | |
6853 | { | |
6854 | face->box_color = load_color (f, face, value, | |
6855 | LFACE_BOX_INDEX); | |
6856 | face->use_box_color_for_shadows_p = 1; | |
6857 | } | |
6858 | } | |
6859 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 6860 | { |
82641697 GM |
6861 | if (EQ (value, Qreleased_button)) |
6862 | face->box = FACE_RAISED_BOX; | |
6863 | else if (EQ (value, Qpressed_button)) | |
6864 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 6865 | } |
42120bc7 RS |
6866 | } |
6867 | } | |
195f798e | 6868 | |
82641697 | 6869 | /* Text underline, overline, strike-through. */ |
178c5d9c | 6870 | |
82641697 | 6871 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 6872 | { |
82641697 GM |
6873 | /* Use default color (same as foreground color). */ |
6874 | face->underline_p = 1; | |
6875 | face->underline_defaulted_p = 1; | |
6876 | face->underline_color = 0; | |
6877 | } | |
6878 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 6879 | { |
82641697 GM |
6880 | /* Use specified color. */ |
6881 | face->underline_p = 1; | |
6882 | face->underline_defaulted_p = 0; | |
6883 | face->underline_color | |
6884 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
6885 | LFACE_UNDERLINE_INDEX); | |
195f798e | 6886 | } |
82641697 | 6887 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 6888 | { |
82641697 GM |
6889 | face->underline_p = 0; |
6890 | face->underline_defaulted_p = 0; | |
6891 | face->underline_color = 0; | |
7b00de84 JB |
6892 | } |
6893 | ||
82641697 GM |
6894 | overline = attrs[LFACE_OVERLINE_INDEX]; |
6895 | if (STRINGP (overline)) | |
cb637678 | 6896 | { |
82641697 GM |
6897 | face->overline_color |
6898 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6899 | LFACE_OVERLINE_INDEX); | |
6900 | face->overline_p = 1; | |
cb637678 | 6901 | } |
82641697 | 6902 | else if (EQ (overline, Qt)) |
cb637678 | 6903 | { |
82641697 GM |
6904 | face->overline_color = face->foreground; |
6905 | face->overline_color_defaulted_p = 1; | |
6906 | face->overline_p = 1; | |
cb637678 JB |
6907 | } |
6908 | ||
82641697 GM |
6909 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6910 | if (STRINGP (strike_through)) | |
6911 | { | |
6912 | face->strike_through_color | |
6913 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6914 | LFACE_STRIKE_THROUGH_INDEX); | |
6915 | face->strike_through_p = 1; | |
6916 | } | |
6917 | else if (EQ (strike_through, Qt)) | |
6918 | { | |
6919 | face->strike_through_color = face->foreground; | |
6920 | face->strike_through_color_defaulted_p = 1; | |
6921 | face->strike_through_p = 1; | |
6922 | } | |
867dd159 | 6923 | |
82641697 GM |
6924 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6925 | if (!NILP (stipple)) | |
6926 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6927 | |
39506348 | 6928 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
82641697 | 6929 | return face; |
c3cee013 | 6930 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 JB |
6931 | } |
6932 | ||
729425b1 | 6933 | |
ae4b4ba5 GM |
6934 | /* Map a specified color of face FACE on frame F to a tty color index. |
6935 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
6936 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
6937 | default foreground/background colors. */ | |
6938 | ||
6939 | static void | |
6940 | map_tty_color (f, face, idx, defaulted) | |
6941 | struct frame *f; | |
6942 | struct face *face; | |
6943 | enum lface_attribute_index idx; | |
6944 | int *defaulted; | |
6945 | { | |
6946 | Lisp_Object frame, color, def; | |
6947 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
6948 | unsigned long default_pixel, default_other_pixel, pixel; | |
6949 | ||
6950 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
6951 | ||
6952 | if (foreground_p) | |
6953 | { | |
6954 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6955 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6956 | } | |
6957 | else | |
6958 | { | |
6959 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6960 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6961 | } | |
177c0ea7 | 6962 | |
ae4b4ba5 GM |
6963 | XSETFRAME (frame, f); |
6964 | color = face->lface[idx]; | |
177c0ea7 | 6965 | |
ae4b4ba5 | 6966 | if (STRINGP (color) |
d5db4077 | 6967 | && SCHARS (color) |
ae4b4ba5 GM |
6968 | && CONSP (Vtty_defined_color_alist) |
6969 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
6970 | CONSP (def))) | |
6971 | { | |
6972 | /* Associations in tty-defined-color-alist are of the form | |
6973 | (NAME INDEX R G B). We need the INDEX part. */ | |
6974 | pixel = XINT (XCAR (XCDR (def))); | |
6975 | } | |
6976 | ||
6977 | if (pixel == default_pixel && STRINGP (color)) | |
6978 | { | |
6979 | pixel = load_color (f, face, color, idx); | |
6980 | ||
6981 | #if defined (MSDOS) || defined (WINDOWSNT) | |
6982 | /* If the foreground of the default face is the default color, | |
6983 | use the foreground color defined by the frame. */ | |
6984 | #ifdef MSDOS | |
6985 | if (FRAME_MSDOS_P (f)) | |
6986 | { | |
6987 | #endif /* MSDOS */ | |
6988 | if (pixel == default_pixel | |
6989 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
6990 | { | |
6991 | if (foreground_p) | |
6992 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6993 | else | |
6994 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6995 | face->lface[idx] = tty_color_name (f, pixel); | |
6996 | *defaulted = 1; | |
6997 | } | |
6998 | else if (pixel == default_other_pixel) | |
6999 | { | |
7000 | if (foreground_p) | |
7001 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7002 | else | |
7003 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7004 | face->lface[idx] = tty_color_name (f, pixel); | |
7005 | *defaulted = 1; | |
7006 | } | |
7007 | #ifdef MSDOS | |
7008 | } | |
7009 | #endif | |
7010 | #endif /* MSDOS or WINDOWSNT */ | |
7011 | } | |
7012 | ||
7013 | if (foreground_p) | |
7014 | face->foreground = pixel; | |
7015 | else | |
7016 | face->background = pixel; | |
7017 | } | |
7018 | ||
7019 | ||
82641697 | 7020 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
7021 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
7022 | pointer to the newly created realized face. */ | |
a8517066 | 7023 | |
82641697 | 7024 | static struct face * |
39506348 KH |
7025 | realize_tty_face (cache, attrs, c) |
7026 | struct face_cache *cache; | |
82641697 | 7027 | Lisp_Object *attrs; |
39506348 | 7028 | int c; |
82641697 GM |
7029 | { |
7030 | struct face *face; | |
7031 | int weight, slant; | |
2d764c78 | 7032 | int face_colors_defaulted = 0; |
ae4b4ba5 | 7033 | struct frame *f = cache->f; |
729425b1 | 7034 | |
82641697 | 7035 | /* Frame must be a termcap frame. */ |
e689ec06 | 7036 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 7037 | |
82641697 | 7038 | /* Allocate a new realized face. */ |
39506348 | 7039 | face = make_realized_face (attrs); |
e689ec06 | 7040 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 7041 | |
178c5d9c | 7042 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
7043 | dimmed text because we want italic text to appear differently |
7044 | and because dimmed text is probably used infrequently. */ | |
7045 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7046 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7047 | ||
7048 | if (weight > XLFD_WEIGHT_MEDIUM) | |
7049 | face->tty_bold_p = 1; | |
7050 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
7051 | face->tty_dim_p = 1; | |
7052 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
7053 | face->tty_underline_p = 1; | |
7054 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
7055 | face->tty_reverse_p = 1; | |
7056 | ||
7057 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
7058 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
7059 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 7060 | |
2d764c78 EZ |
7061 | /* Swap colors if face is inverse-video. If the colors are taken |
7062 | from the frame colors, they are already inverted, since the | |
7063 | frame-creation function calls x-handle-reverse-video. */ | |
7064 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
7065 | { |
7066 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
7067 | face->foreground = face->background; |
7068 | face->background = tem; | |
7069 | } | |
44747bd0 | 7070 | |
a4a76b61 GM |
7071 | if (tty_suppress_bold_inverse_default_colors_p |
7072 | && face->tty_bold_p | |
7073 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
7074 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
7075 | face->tty_bold_p = 0; | |
7076 | ||
82641697 | 7077 | return face; |
729425b1 | 7078 | } |
867dd159 | 7079 | |
82641697 | 7080 | |
a4a76b61 GM |
7081 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
7082 | Ftty_suppress_bold_inverse_default_colors, | |
7083 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 7084 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
7085 | SUPPRESS non-nil means suppress it. |
7086 | This affects bold faces on TTYs whose foreground is the default background | |
7087 | color of the display and whose background is the default foreground color. | |
7088 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
7089 | is non-nil. */) |
7090 | (suppress) | |
a4a76b61 GM |
7091 | Lisp_Object suppress; |
7092 | { | |
7093 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
7094 | ++face_change_count; | |
7095 | return suppress; | |
7096 | } | |
7097 | ||
7098 | ||
82641697 GM |
7099 | \f |
7100 | /*********************************************************************** | |
7101 | Computing Faces | |
7102 | ***********************************************************************/ | |
7103 | ||
7104 | /* Return the ID of the face to use to display character CH with face | |
7105 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
7106 | |
7107 | int | |
82641697 | 7108 | compute_char_face (f, ch, prop) |
2e16580f | 7109 | struct frame *f; |
82641697 GM |
7110 | int ch; |
7111 | Lisp_Object prop; | |
2e16580f | 7112 | { |
82641697 | 7113 | int face_id; |
39506348 KH |
7114 | |
7115 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 7116 | ch = 0; |
178c5d9c | 7117 | |
82641697 | 7118 | if (NILP (prop)) |
39506348 KH |
7119 | { |
7120 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7121 | face_id = FACE_FOR_CHAR (f, face, ch); | |
7122 | } | |
82641697 | 7123 | else |
2e16580f | 7124 | { |
82641697 GM |
7125 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
7126 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7127 | bcopy (default_face->lface, attrs, sizeof attrs); | |
7128 | merge_face_vector_with_property (f, attrs, prop); | |
39506348 | 7129 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
7130 | } |
7131 | ||
82641697 | 7132 | return face_id; |
2e16580f | 7133 | } |
bc0db68d | 7134 | |
82641697 GM |
7135 | /* Return the face ID associated with buffer position POS for |
7136 | displaying ASCII characters. Return in *ENDPTR the position at | |
7137 | which a different face is needed, as far as text properties and | |
7138 | overlays are concerned. W is a window displaying current_buffer. | |
7139 | ||
7140 | REGION_BEG, REGION_END delimit the region, so it can be | |
7141 | highlighted. | |
6f134486 | 7142 | |
82641697 GM |
7143 | LIMIT is a position not to scan beyond. That is to limit the time |
7144 | this function can take. | |
7145 | ||
7146 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
7147 | ||
39506348 | 7148 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 7149 | |
cb637678 | 7150 | int |
82641697 GM |
7151 | face_at_buffer_position (w, pos, region_beg, region_end, |
7152 | endptr, limit, mouse) | |
f211082d | 7153 | struct window *w; |
7b7739b1 | 7154 | int pos; |
bc0db68d | 7155 | int region_beg, region_end; |
7b7739b1 | 7156 | int *endptr; |
b349f4fb | 7157 | int limit; |
6f134486 | 7158 | int mouse; |
7b7739b1 | 7159 | { |
82641697 GM |
7160 | struct frame *f = XFRAME (w->frame); |
7161 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 7162 | Lisp_Object prop, position; |
82641697 | 7163 | int i, noverlays; |
7b7739b1 | 7164 | Lisp_Object *overlay_vec; |
f211082d | 7165 | Lisp_Object frame; |
f6b98e0b | 7166 | int endpos; |
82641697 GM |
7167 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
7168 | Lisp_Object limit1, end; | |
7169 | struct face *default_face; | |
f6b98e0b JB |
7170 | |
7171 | /* W must display the current buffer. We could write this function | |
7172 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 7173 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 7174 | |
ac22a6c4 | 7175 | XSETFRAME (frame, f); |
82641697 | 7176 | XSETFASTINT (position, pos); |
7b7739b1 | 7177 | |
f6b98e0b | 7178 | endpos = ZV; |
bc0db68d RS |
7179 | if (pos < region_beg && region_beg < endpos) |
7180 | endpos = region_beg; | |
f6b98e0b | 7181 | |
82641697 GM |
7182 | /* Get the `face' or `mouse_face' text property at POS, and |
7183 | determine the next position at which the property changes. */ | |
6f134486 | 7184 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
7185 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
7186 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
7187 | if (INTEGERP (end)) | |
7188 | endpos = XINT (end); | |
6f134486 | 7189 | |
82641697 | 7190 | /* Look at properties from overlays. */ |
b6d40e46 | 7191 | { |
f6b98e0b | 7192 | int next_overlay; |
9516fe94 RS |
7193 | int len; |
7194 | ||
7195 | /* First try with room for 40 overlays. */ | |
7196 | len = 40; | |
7197 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 7198 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 7199 | &next_overlay, NULL, 0); |
9516fe94 | 7200 | |
82641697 GM |
7201 | /* If there are more than 40, make enough space for all, and try |
7202 | again. */ | |
9516fe94 RS |
7203 | if (noverlays > len) |
7204 | { | |
7205 | len = noverlays; | |
7206 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 7207 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 7208 | &next_overlay, NULL, 0); |
9516fe94 | 7209 | } |
b6d40e46 | 7210 | |
f6b98e0b JB |
7211 | if (next_overlay < endpos) |
7212 | endpos = next_overlay; | |
b6d40e46 JB |
7213 | } |
7214 | ||
7215 | *endptr = endpos; | |
7b7739b1 | 7216 | |
82641697 | 7217 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 7218 | |
82641697 GM |
7219 | /* Optimize common cases where we can use the default face. */ |
7220 | if (noverlays == 0 | |
7221 | && NILP (prop) | |
39506348 | 7222 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
7223 | return DEFAULT_FACE_ID; |
7224 | ||
7225 | /* Begin with attributes from the default face. */ | |
7226 | bcopy (default_face->lface, attrs, sizeof attrs); | |
7227 | ||
7228 | /* Merge in attributes specified via text properties. */ | |
7229 | if (!NILP (prop)) | |
7230 | merge_face_vector_with_property (f, attrs, prop); | |
7231 | ||
7232 | /* Now merge the overlay data. */ | |
18195655 | 7233 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 7234 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 7235 | { |
18195655 RS |
7236 | Lisp_Object oend; |
7237 | int oendpos; | |
7238 | ||
7239 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
7240 | if (!NILP (prop)) |
7241 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
7242 | |
7243 | oend = OVERLAY_END (overlay_vec[i]); | |
7244 | oendpos = OVERLAY_POSITION (oend); | |
7245 | if (oendpos < endpos) | |
7246 | endpos = oendpos; | |
7247 | } | |
7248 | ||
82641697 | 7249 | /* If in the region, merge in the region face. */ |
18195655 RS |
7250 | if (pos >= region_beg && pos < region_end) |
7251 | { | |
82641697 | 7252 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 7253 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
178c5d9c | 7254 | |
18195655 RS |
7255 | if (region_end < endpos) |
7256 | endpos = region_end; | |
18195655 RS |
7257 | } |
7258 | ||
7259 | *endptr = endpos; | |
7260 | ||
82641697 | 7261 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7262 | or realize a new one for ASCII characters. */ |
7263 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
7264 | } |
7265 | ||
60573a90 | 7266 | |
82641697 | 7267 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 7268 | window W, for ASCII characters. |
7b7739b1 | 7269 | |
82641697 GM |
7270 | If STRING is an overlay string, it comes from position BUFPOS in |
7271 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
7272 | not an overlay string. W must display the current buffer. | |
7273 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
7274 | region; both are -1 if no region is visible. |
7275 | ||
7276 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
7277 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 7278 | |
48a4ca99 GM |
7279 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
7280 | ||
82641697 GM |
7281 | Set *ENDPTR to the next position where to check for faces in |
7282 | STRING; -1 if the face is constant from POS to the end of the | |
7283 | string. | |
18195655 | 7284 | |
82641697 | 7285 | Value is the id of the face to use. The face returned is suitable |
39506348 | 7286 | for displaying ASCII characters. */ |
fffc2367 | 7287 | |
82641697 GM |
7288 | int |
7289 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 7290 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
7291 | struct window *w; |
7292 | Lisp_Object string; | |
7293 | int pos, bufpos; | |
7294 | int region_beg, region_end; | |
7295 | int *endptr; | |
7296 | enum face_id base_face_id; | |
48a4ca99 | 7297 | int mouse_p; |
660ed669 | 7298 | { |
82641697 GM |
7299 | Lisp_Object prop, position, end, limit; |
7300 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
7301 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7302 | struct face *base_face; | |
7303 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 7304 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
7305 | |
7306 | /* Get the value of the face property at the current position within | |
7307 | STRING. Value is nil if there is no face property. */ | |
7308 | XSETFASTINT (position, pos); | |
48a4ca99 | 7309 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
7310 | |
7311 | /* Get the next position at which to check for faces. Value of end | |
7312 | is nil if face is constant all the way to the end of the string. | |
7313 | Otherwise it is a string position where to check faces next. | |
7314 | Limit is the maximum position up to which to check for property | |
7315 | changes in Fnext_single_property_change. Strings are usually | |
7316 | short, so set the limit to the end of the string. */ | |
d5db4077 | 7317 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 7318 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
7319 | if (INTEGERP (end)) |
7320 | *endptr = XFASTINT (end); | |
7321 | else | |
7322 | *endptr = -1; | |
7323 | ||
7324 | base_face = FACE_FROM_ID (f, base_face_id); | |
7325 | xassert (base_face); | |
7326 | ||
7327 | /* Optimize the default case that there is no face property and we | |
7328 | are not in the region. */ | |
7329 | if (NILP (prop) | |
7330 | && (base_face_id != DEFAULT_FACE_ID | |
7331 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
7332 | that the region doesn't have to be taken into account. */ | |
7333 | || bufpos <= 0 | |
7334 | || bufpos < region_beg | |
7335 | || bufpos >= region_end) | |
7336 | && (multibyte_p | |
7337 | /* We can't realize faces for different charsets differently | |
7338 | if we don't have fonts, so we can stop here if not working | |
7339 | on a window-system frame. */ | |
7340 | || !FRAME_WINDOW_P (f) | |
39506348 | 7341 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
7342 | return base_face->id; |
7343 | ||
7344 | /* Begin with attributes from the base face. */ | |
7345 | bcopy (base_face->lface, attrs, sizeof attrs); | |
7346 | ||
7347 | /* Merge in attributes specified via text properties. */ | |
7348 | if (!NILP (prop)) | |
7349 | merge_face_vector_with_property (f, attrs, prop); | |
7350 | ||
7351 | /* If in the region, merge in the region face. */ | |
7352 | if (bufpos | |
7353 | && bufpos >= region_beg | |
7354 | && bufpos < region_end) | |
a8517066 | 7355 | { |
82641697 | 7356 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 7357 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
a8517066 | 7358 | } |
660ed669 | 7359 | |
82641697 | 7360 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7361 | or realize a new one for ASCII characters. */ |
7362 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
7363 | } |
7364 | ||
7365 | ||
c115973b | 7366 | \f |
82641697 GM |
7367 | /*********************************************************************** |
7368 | Tests | |
7369 | ***********************************************************************/ | |
c115973b | 7370 | |
82641697 | 7371 | #if GLYPH_DEBUG |
c115973b | 7372 | |
82641697 | 7373 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 7374 | |
82641697 GM |
7375 | static void |
7376 | dump_realized_face (face) | |
7377 | struct face *face; | |
7378 | { | |
7379 | fprintf (stderr, "ID: %d\n", face->id); | |
7380 | #ifdef HAVE_X_WINDOWS | |
7381 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
7382 | #endif | |
7383 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
7384 | face->foreground, | |
d5db4077 | 7385 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
7386 | fprintf (stderr, "background: 0x%lx (%s)\n", |
7387 | face->background, | |
d5db4077 | 7388 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
82641697 GM |
7389 | fprintf (stderr, "font_name: %s (%s)\n", |
7390 | face->font_name, | |
d5db4077 | 7391 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
82641697 GM |
7392 | #ifdef HAVE_X_WINDOWS |
7393 | fprintf (stderr, "font = %p\n", face->font); | |
7394 | #endif | |
7395 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
7396 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
7397 | fprintf (stderr, "underline: %d (%s)\n", | |
7398 | face->underline_p, | |
d5db4077 | 7399 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 GM |
7400 | fprintf (stderr, "hash: %d\n", face->hash); |
7401 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
7402 | } |
7403 | ||
7404 | ||
7ee72033 MB |
7405 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
7406 | (n) | |
82641697 | 7407 | Lisp_Object n; |
c115973b | 7408 | { |
82641697 | 7409 | if (NILP (n)) |
c115973b | 7410 | { |
82641697 | 7411 | int i; |
178c5d9c | 7412 | |
82641697 GM |
7413 | fprintf (stderr, "font selection order: "); |
7414 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7415 | fprintf (stderr, "%d ", font_sort_order[i]); | |
7416 | fprintf (stderr, "\n"); | |
7417 | ||
7418 | fprintf (stderr, "alternative fonts: "); | |
7419 | debug_print (Vface_alternative_font_family_alist); | |
7420 | fprintf (stderr, "\n"); | |
178c5d9c | 7421 | |
c0617987 | 7422 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 7423 | Fdump_face (make_number (i)); |
c115973b JB |
7424 | } |
7425 | else | |
f5e278c7 | 7426 | { |
82641697 | 7427 | struct face *face; |
b7826503 | 7428 | CHECK_NUMBER (n); |
c0617987 | 7429 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
7430 | if (face == NULL) |
7431 | error ("Not a valid face"); | |
7432 | dump_realized_face (face); | |
f5e278c7 | 7433 | } |
178c5d9c | 7434 | |
c115973b JB |
7435 | return Qnil; |
7436 | } | |
b5c53576 | 7437 | |
b5c53576 | 7438 | |
82641697 | 7439 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
7440 | 0, 0, 0, doc: /* */) |
7441 | () | |
b5c53576 | 7442 | { |
82641697 GM |
7443 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
7444 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
7445 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
7446 | return Qnil; | |
b5c53576 RS |
7447 | } |
7448 | ||
82641697 GM |
7449 | #endif /* GLYPH_DEBUG != 0 */ |
7450 | ||
b5c53576 | 7451 | |
c115973b | 7452 | \f |
82641697 GM |
7453 | /*********************************************************************** |
7454 | Initialization | |
7455 | ***********************************************************************/ | |
cb637678 | 7456 | |
c115973b | 7457 | void |
f211082d | 7458 | syms_of_xfaces () |
c115973b | 7459 | { |
f211082d JB |
7460 | Qface = intern ("face"); |
7461 | staticpro (&Qface); | |
fef04523 GM |
7462 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
7463 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
7464 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
7465 | staticpro (&Qframe_update_face_colors); | |
178c5d9c | 7466 | |
82641697 GM |
7467 | /* Lisp face attribute keywords. */ |
7468 | QCfamily = intern (":family"); | |
7469 | staticpro (&QCfamily); | |
7470 | QCheight = intern (":height"); | |
7471 | staticpro (&QCheight); | |
7472 | QCweight = intern (":weight"); | |
7473 | staticpro (&QCweight); | |
7474 | QCslant = intern (":slant"); | |
7475 | staticpro (&QCslant); | |
7476 | QCunderline = intern (":underline"); | |
7477 | staticpro (&QCunderline); | |
7478 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 7479 | staticpro (&QCinverse_video); |
82641697 GM |
7480 | QCreverse_video = intern (":reverse-video"); |
7481 | staticpro (&QCreverse_video); | |
7482 | QCforeground = intern (":foreground"); | |
7483 | staticpro (&QCforeground); | |
7484 | QCbackground = intern (":background"); | |
7485 | staticpro (&QCbackground); | |
7486 | QCstipple = intern (":stipple");; | |
7487 | staticpro (&QCstipple); | |
7488 | QCwidth = intern (":width"); | |
7489 | staticpro (&QCwidth); | |
7490 | QCfont = intern (":font"); | |
7491 | staticpro (&QCfont); | |
7492 | QCbold = intern (":bold"); | |
7493 | staticpro (&QCbold); | |
7494 | QCitalic = intern (":italic"); | |
7495 | staticpro (&QCitalic); | |
7496 | QCoverline = intern (":overline"); | |
7497 | staticpro (&QCoverline); | |
7498 | QCstrike_through = intern (":strike-through"); | |
7499 | staticpro (&QCstrike_through); | |
7500 | QCbox = intern (":box"); | |
7501 | staticpro (&QCbox); | |
2c20458f MB |
7502 | QCinherit = intern (":inherit"); |
7503 | staticpro (&QCinherit); | |
82641697 GM |
7504 | |
7505 | /* Symbols used for Lisp face attribute values. */ | |
7506 | QCcolor = intern (":color"); | |
7507 | staticpro (&QCcolor); | |
7508 | QCline_width = intern (":line-width"); | |
7509 | staticpro (&QCline_width); | |
7510 | QCstyle = intern (":style"); | |
7511 | staticpro (&QCstyle); | |
7512 | Qreleased_button = intern ("released-button"); | |
7513 | staticpro (&Qreleased_button); | |
7514 | Qpressed_button = intern ("pressed-button"); | |
7515 | staticpro (&Qpressed_button); | |
7516 | Qnormal = intern ("normal"); | |
7517 | staticpro (&Qnormal); | |
7518 | Qultra_light = intern ("ultra-light"); | |
7519 | staticpro (&Qultra_light); | |
7520 | Qextra_light = intern ("extra-light"); | |
7521 | staticpro (&Qextra_light); | |
7522 | Qlight = intern ("light"); | |
7523 | staticpro (&Qlight); | |
7524 | Qsemi_light = intern ("semi-light"); | |
7525 | staticpro (&Qsemi_light); | |
7526 | Qsemi_bold = intern ("semi-bold"); | |
7527 | staticpro (&Qsemi_bold); | |
7528 | Qbold = intern ("bold"); | |
7529 | staticpro (&Qbold); | |
7530 | Qextra_bold = intern ("extra-bold"); | |
7531 | staticpro (&Qextra_bold); | |
7532 | Qultra_bold = intern ("ultra-bold"); | |
7533 | staticpro (&Qultra_bold); | |
7534 | Qoblique = intern ("oblique"); | |
7535 | staticpro (&Qoblique); | |
7536 | Qitalic = intern ("italic"); | |
7537 | staticpro (&Qitalic); | |
7538 | Qreverse_oblique = intern ("reverse-oblique"); | |
7539 | staticpro (&Qreverse_oblique); | |
7540 | Qreverse_italic = intern ("reverse-italic"); | |
7541 | staticpro (&Qreverse_italic); | |
7542 | Qultra_condensed = intern ("ultra-condensed"); | |
7543 | staticpro (&Qultra_condensed); | |
7544 | Qextra_condensed = intern ("extra-condensed"); | |
7545 | staticpro (&Qextra_condensed); | |
7546 | Qcondensed = intern ("condensed"); | |
7547 | staticpro (&Qcondensed); | |
7548 | Qsemi_condensed = intern ("semi-condensed"); | |
7549 | staticpro (&Qsemi_condensed); | |
7550 | Qsemi_expanded = intern ("semi-expanded"); | |
7551 | staticpro (&Qsemi_expanded); | |
7552 | Qexpanded = intern ("expanded"); | |
7553 | staticpro (&Qexpanded); | |
7554 | Qextra_expanded = intern ("extra-expanded"); | |
7555 | staticpro (&Qextra_expanded); | |
7556 | Qultra_expanded = intern ("ultra-expanded"); | |
7557 | staticpro (&Qultra_expanded); | |
7558 | Qbackground_color = intern ("background-color"); | |
7559 | staticpro (&Qbackground_color); | |
7560 | Qforeground_color = intern ("foreground-color"); | |
7561 | staticpro (&Qforeground_color); | |
7562 | Qunspecified = intern ("unspecified"); | |
7563 | staticpro (&Qunspecified); | |
7564 | ||
92610620 GM |
7565 | Qface_alias = intern ("face-alias"); |
7566 | staticpro (&Qface_alias); | |
82641697 GM |
7567 | Qdefault = intern ("default"); |
7568 | staticpro (&Qdefault); | |
9ea173e8 GM |
7569 | Qtool_bar = intern ("tool-bar"); |
7570 | staticpro (&Qtool_bar); | |
82641697 GM |
7571 | Qregion = intern ("region"); |
7572 | staticpro (&Qregion); | |
8bd201d6 GM |
7573 | Qfringe = intern ("fringe"); |
7574 | staticpro (&Qfringe); | |
045dee35 GM |
7575 | Qheader_line = intern ("header-line"); |
7576 | staticpro (&Qheader_line); | |
8bd201d6 GM |
7577 | Qscroll_bar = intern ("scroll-bar"); |
7578 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
7579 | Qmenu = intern ("menu"); |
7580 | staticpro (&Qmenu); | |
8bd201d6 GM |
7581 | Qcursor = intern ("cursor"); |
7582 | staticpro (&Qcursor); | |
7583 | Qborder = intern ("border"); | |
7584 | staticpro (&Qborder); | |
7585 | Qmouse = intern ("mouse"); | |
7586 | staticpro (&Qmouse); | |
039b6394 KS |
7587 | Qmode_line_inactive = intern ("mode-line-inactive"); |
7588 | staticpro (&Qmode_line_inactive); | |
2d764c78 EZ |
7589 | Qtty_color_desc = intern ("tty-color-desc"); |
7590 | staticpro (&Qtty_color_desc); | |
b35df831 MB |
7591 | Qtty_color_standard_values = intern ("tty-color-standard-values"); |
7592 | staticpro (&Qtty_color_standard_values); | |
2d764c78 EZ |
7593 | Qtty_color_by_index = intern ("tty-color-by-index"); |
7594 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
7595 | Qtty_color_alist = intern ("tty-color-alist"); |
7596 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
7597 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
7598 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 7599 | |
dbc968b8 GM |
7600 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
7601 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
7602 | Vface_alternative_font_family_alist = Qnil; |
7603 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
7604 | Vface_alternative_font_registry_alist = Qnil; |
7605 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 7606 | |
82641697 GM |
7607 | defsubr (&Sinternal_make_lisp_face); |
7608 | defsubr (&Sinternal_lisp_face_p); | |
7609 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 7610 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 7611 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 7612 | #endif |
ea4fa0af GM |
7613 | defsubr (&Scolor_gray_p); |
7614 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
7615 | defsubr (&Sface_attribute_relative_p); |
7616 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
7617 | defsubr (&Sinternal_get_lisp_face_attribute); |
7618 | defsubr (&Sinternal_lisp_face_attribute_values); | |
7619 | defsubr (&Sinternal_lisp_face_equal_p); | |
7620 | defsubr (&Sinternal_lisp_face_empty_p); | |
7621 | defsubr (&Sinternal_copy_lisp_face); | |
7622 | defsubr (&Sinternal_merge_in_global_face); | |
7623 | defsubr (&Sface_font); | |
7624 | defsubr (&Sframe_face_alist); | |
b35df831 MB |
7625 | defsubr (&Stty_supports_face_attributes_p); |
7626 | defsubr (&Scolor_distance); | |
82641697 GM |
7627 | defsubr (&Sinternal_set_font_selection_order); |
7628 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 7629 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 7630 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
7631 | #if GLYPH_DEBUG |
7632 | defsubr (&Sdump_face); | |
7633 | defsubr (&Sshow_face_resources); | |
7634 | #endif /* GLYPH_DEBUG */ | |
7635 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 7636 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 7637 | |
38426dee | 7638 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
7639 | defsubr (&Sdump_colors); |
7640 | #endif | |
7641 | ||
7ee72033 MB |
7642 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
7643 | doc: /* *Limit for font matching. | |
228299fa GM |
7644 | If an integer > 0, font matching functions won't load more than |
7645 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
7646 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
7647 | ||
7ee72033 MB |
7648 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
7649 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 7650 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 7651 | |
7ee72033 MB |
7652 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
7653 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
7654 | This stipple pattern is used on monochrome displays |
7655 | instead of shades of gray for a face background color. | |
7656 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
7657 | Vface_default_stipple = build_string ("gray3"); |
7658 | ||
7ee72033 MB |
7659 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
7660 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
7661 | Vtty_defined_color_alist = Qnil; |
7662 | ||
7ee72033 MB |
7663 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
7664 | doc: /* Allowed scalable fonts. | |
228299fa GM |
7665 | A value of nil means don't allow any scalable fonts. |
7666 | A value of t means allow any scalable font. | |
7667 | Otherwise, value must be a list of regular expressions. A font may be | |
7668 | scaled if its name matches a regular expression in the list. | |
7669 | Note that if value is nil, a scalable font might still be used, if no | |
7670 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 7671 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 7672 | |
7ee72033 MB |
7673 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
7674 | doc: /* List of ignored fonts. | |
228299fa GM |
7675 | Each element is a regular expression that matches names of fonts to |
7676 | ignore. */); | |
c824bfbc KH |
7677 | Vface_ignored_fonts = Qnil; |
7678 | ||
c3cee013 | 7679 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 7680 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
7681 | defsubr (&Sx_list_fonts); |
7682 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 7683 | defsubr (&Sx_family_fonts); |
82641697 | 7684 | defsubr (&Sx_font_family_list); |
c3cee013 | 7685 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 7686 | } |