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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
0b5538bd TTN |
2 | Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
3 | 2005 Free Software Foundation, Inc. | |
7b7739b1 | 4 | |
c115973b JB |
5 | This file is part of GNU Emacs. |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
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 | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
c115973b | 21 | |
82641697 GM |
22 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
23 | ||
24 | /* Faces. | |
25 | ||
26 | When using Emacs with X, the display style of characters can be | |
27 | changed by defining `faces'. Each face can specify the following | |
28 | display attributes: | |
29 | ||
39506348 | 30 | 1. Font family name. |
178c5d9c | 31 | |
82641697 GM |
32 | 2. Relative proportionate width, aka character set width or set |
33 | width (swidth), e.g. `semi-compressed'. | |
178c5d9c | 34 | |
39506348 | 35 | 3. Font height in 1/10pt. |
178c5d9c | 36 | |
82641697 | 37 | 4. Font weight, e.g. `bold'. |
178c5d9c | 38 | |
82641697 | 39 | 5. Font slant, e.g. `italic'. |
178c5d9c | 40 | |
82641697 | 41 | 6. Foreground color. |
178c5d9c | 42 | |
82641697 GM |
43 | 7. Background color. |
44 | ||
45 | 8. Whether or not characters should be underlined, and in what color. | |
46 | ||
47 | 9. Whether or not characters should be displayed in inverse video. | |
48 | ||
49 | 10. A background stipple, a bitmap. | |
50 | ||
51 | 11. Whether or not characters should be overlined, and in what color. | |
52 | ||
53 | 12. Whether or not characters should be strike-through, and in what | |
54 | color. | |
55 | ||
56 | 13. Whether or not a box should be drawn around characters, the box | |
57 | type, and, for simple boxes, in what color. | |
58 | ||
39506348 | 59 | 14. Font or fontset pattern, or nil. This is a special attribute. |
ec7a10e3 | 60 | When this attribute is specified, the face uses a font opened by |
39506348 KH |
61 | that pattern as is. In addition, all the other font-related |
62 | attributes (1st thru 5th) are generated from the opened font name. | |
63 | On the other hand, if one of the other font-related attributes are | |
64 | specified, this attribute is set to nil. In that case, the face | |
65 | doesn't inherit this attribute from the `default' face, and uses a | |
66 | font determined by the other attributes (those may be inherited | |
67 | from the `default' face). | |
68 | ||
2c20458f MB |
69 | 15. A face name or list of face names from which to inherit attributes. |
70 | ||
a08332c0 GM |
71 | 16. A specified average font width, which is invisible from Lisp, |
72 | and is used to ensure that a font specified on the command line, | |
73 | for example, can be matched exactly. | |
74 | ||
82641697 GM |
75 | Faces are frame-local by nature because Emacs allows to define the |
76 | same named face (face names are symbols) differently for different | |
77 | frames. Each frame has an alist of face definitions for all named | |
78 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
79 | with the symbol `face' in slot 0, and a slot for each of the face |
80 | attributes mentioned above. | |
82641697 GM |
81 | |
82 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
83 | definitions from this list are used to initialize faces of newly | |
84 | created frames. | |
178c5d9c | 85 | |
82641697 | 86 | A face doesn't have to specify all attributes. Those not specified |
39506348 KH |
87 | have a value of `unspecified'. Faces specifying all attributes but |
88 | the 14th are called `fully-specified'. | |
82641697 GM |
89 | |
90 | ||
91 | Face merging. | |
92 | ||
93 | The display style of a given character in the text is determined by | |
94 | combining several faces. This process is called `face merging'. | |
95 | Any aspect of the display style that isn't specified by overlays or | |
96 | text properties is taken from the `default' face. Since it is made | |
97 | sure that the default face is always fully-specified, face merging | |
98 | always results in a fully-specified face. | |
99 | ||
100 | ||
101 | Face realization. | |
178c5d9c | 102 | |
82641697 GM |
103 | After all face attributes for a character have been determined by |
104 | merging faces of that character, that face is `realized'. The | |
105 | realization process maps face attributes to what is physically | |
106 | available on the system where Emacs runs. The result is a | |
107 | `realized face' in form of a struct face which is stored in the | |
108 | face cache of the frame on which it was realized. | |
109 | ||
39506348 KH |
110 | Face realization is done in the context of the character to display |
111 | because different fonts may be used for different characters. In | |
112 | other words, for characters that have different font | |
113 | specifications, different realized faces are needed to display | |
82641697 GM |
114 | them. |
115 | ||
39506348 KH |
116 | Font specification is done by fontsets. See the comment in |
117 | fontset.c for the details. In the current implementation, all ASCII | |
118 | characters share the same font in a fontset. | |
119 | ||
120 | Faces are at first realized for ASCII characters, and, at that | |
121 | time, assigned a specific realized fontset. Hereafter, we call | |
122 | such a face as `ASCII face'. When a face for a multibyte character | |
123 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
124 | that has the same attributes other than font-related ones. | |
125 | ||
ec7a10e3 | 126 | Thus, all realized face have a realized fontset. |
82641697 GM |
127 | |
128 | ||
129 | Unibyte text. | |
130 | ||
39506348 KH |
131 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
132 | font as ASCII characters. That is because it is expected that | |
133 | unibyte text users specify a font that is suitable both for ASCII | |
134 | and raw 8-bit characters. | |
135 | ||
82641697 GM |
136 | |
137 | Font selection. | |
138 | ||
139 | Font selection tries to find the best available matching font for a | |
39506348 | 140 | given (character, face) combination. |
82641697 | 141 | |
39506348 KH |
142 | If the face specifies a fontset name, that fontset determines a |
143 | pattern for fonts of the given character. If the face specifies a | |
144 | font name or the other font-related attributes, a fontset is | |
145 | realized from the default fontset. In that case, that | |
146 | specification determines a pattern for ASCII characters and the | |
147 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
148 | |
149 | Available fonts on the system on which Emacs runs are then matched | |
150 | against the font pattern. The result of font selection is the best | |
151 | match for the given face attributes in this font list. | |
152 | ||
153 | Font selection can be influenced by the user. | |
154 | ||
155 | 1. The user can specify the relative importance he gives the face | |
156 | attributes width, height, weight, and slant by setting | |
157 | face-font-selection-order (faces.el) to a list of face attribute | |
158 | names. The default is '(:width :height :weight :slant), and means | |
159 | that font selection first tries to find a good match for the font | |
160 | width specified by a face, then---within fonts with that | |
161 | width---tries to find a best match for the specified font height, | |
162 | etc. | |
163 | ||
c824bfbc | 164 | 2. Setting face-font-family-alternatives allows the user to |
82641697 GM |
165 | specify alternative font families to try if a family specified by a |
166 | face doesn't exist. | |
167 | ||
c824bfbc KH |
168 | 3. Setting face-font-registry-alternatives allows the user to |
169 | specify all alternative font registries to try for a face | |
170 | specifying a registry. | |
171 | ||
172 | 4. Setting face-ignored-fonts allows the user to ignore specific | |
173 | fonts. | |
174 | ||
82641697 | 175 | |
ec7a10e3 | 176 | Character composition. |
39506348 KH |
177 | |
178 | Usually, the realization process is already finished when Emacs | |
179 | actually reflects the desired glyph matrix on the screen. However, | |
180 | on displaying a composition (sequence of characters to be composed | |
181 | on the screen), a suitable font for the components of the | |
182 | composition is selected and realized while drawing them on the | |
183 | screen, i.e. the realization process is delayed but in principle | |
184 | the same. | |
82641697 | 185 | |
178c5d9c | 186 | |
82641697 GM |
187 | Initialization of basic faces. |
188 | ||
189 | The faces `default', `modeline' are considered `basic faces'. | |
190 | When redisplay happens the first time for a newly created frame, | |
191 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
192 | used to fill in unspecified attributes of the default face. */ | |
193 | ||
68c45bf0 | 194 | #include <config.h> |
5890e9f7 | 195 | #include <stdio.h> |
c115973b JB |
196 | #include <sys/types.h> |
197 | #include <sys/stat.h> | |
7ee72033 | 198 | |
c115973b | 199 | #include "lisp.h" |
a8517066 | 200 | #include "charset.h" |
9763806e | 201 | #include "keyboard.h" |
b5c53576 RS |
202 | #include "frame.h" |
203 | ||
f7cc6849 DL |
204 | #ifdef HAVE_WINDOW_SYSTEM |
205 | #include "fontset.h" | |
d12d0a9b GM |
206 | #endif /* HAVE_WINDOW_SYSTEM */ |
207 | ||
87485d6f | 208 | #ifdef HAVE_X_WINDOWS |
c115973b | 209 | #include "xterm.h" |
c7ae3284 GM |
210 | #ifdef USE_MOTIF |
211 | #include <Xm/Xm.h> | |
212 | #include <Xm/XmStrDefs.h> | |
213 | #endif /* USE_MOTIF */ | |
d12d0a9b | 214 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 215 | |
87485d6f MW |
216 | #ifdef MSDOS |
217 | #include "dosfns.h" | |
218 | #endif | |
82641697 | 219 | |
c3cee013 JR |
220 | #ifdef WINDOWSNT |
221 | #include "w32term.h" | |
222 | #include "fontset.h" | |
223 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
224 | code with #ifdef blocks. */ | |
9763806e | 225 | #undef FRAME_X_DISPLAY_INFO |
c3cee013 JR |
226 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO |
227 | #define x_display_info w32_display_info | |
228 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
229 | #define check_x check_w32 | |
230 | #define x_list_fonts w32_list_fonts | |
231 | #define GCGraphicsExposures 0 | |
d12d0a9b | 232 | #endif /* WINDOWSNT */ |
c3cee013 | 233 | |
e0f712ba | 234 | #ifdef MAC_OS |
1a578e9b AC |
235 | #include "macterm.h" |
236 | #define x_display_info mac_display_info | |
237 | #define check_x check_mac | |
e0f712ba | 238 | #endif /* MAC_OS */ |
1a578e9b | 239 | |
c115973b | 240 | #include "buffer.h" |
f211082d | 241 | #include "dispextern.h" |
357f32fc | 242 | #include "blockinput.h" |
b6d40e46 | 243 | #include "window.h" |
bde7c500 | 244 | #include "intervals.h" |
c115973b | 245 | |
87485d6f | 246 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
247 | |
248 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
249 | time.h. On some such systems, Xos.h tries to redefine struct |
250 | timeval and struct timezone if USG is #defined while it is | |
251 | #included. */ | |
657070ac | 252 | |
82641697 | 253 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 254 | #include <time.h> |
657070ac JB |
255 | #undef USG |
256 | #include <X11/Xos.h> | |
257 | #define USG | |
e11d186d | 258 | #define __TIMEVAL__ |
82641697 GM |
259 | #else /* not XOS_NEEDS_TIME_H */ |
260 | #include <X11/Xos.h> | |
261 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 262 | |
82641697 | 263 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 264 | |
82641697 | 265 | #include <ctype.h> |
c115973b | 266 | |
82641697 | 267 | #define abs(X) ((X) < 0 ? -(X) : (X)) |
cb637678 | 268 | |
c660ce4e GM |
269 | /* Number of pt per inch (from the TeXbook). */ |
270 | ||
271 | #define PT_PER_INCH 72.27 | |
272 | ||
82641697 GM |
273 | /* Non-zero if face attribute ATTR is unspecified. */ |
274 | ||
275 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
276 | ||
277 | /* Value is the number of elements of VECTOR. */ | |
278 | ||
279 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
280 | ||
178c5d9c | 281 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
282 | to the copy. */ |
283 | ||
284 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 285 | |
82641697 GM |
286 | /* Make a copy of the contents of Lisp string S on the stack using |
287 | alloca. Value is a pointer to the copy. */ | |
288 | ||
d5db4077 | 289 | #define LSTRDUPA(S) STRDUPA (SDATA ((S))) |
82641697 | 290 | |
178c5d9c | 291 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
292 | prime number). */ |
293 | ||
294 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
295 | ||
296 | /* Keyword symbols used for face attribute names. */ | |
297 | ||
298 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
299 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
300 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
301 | Lisp_Object QCreverse_video; | |
2c20458f | 302 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
303 | |
304 | /* Symbols used for attribute values. */ | |
305 | ||
306 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
307 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
308 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
309 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
310 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
311 | Lisp_Object Qultra_expanded; | |
312 | Lisp_Object Qreleased_button, Qpressed_button; | |
313 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
314 | Lisp_Object Qunspecified; |
315 | ||
316 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 317 | |
92610620 | 318 | /* The name of the function to call when the background of the frame |
c20577bc | 319 | has changed, frame_set_background_mode. */ |
92610620 | 320 | |
c20577bc | 321 | Lisp_Object Qframe_set_background_mode; |
92610620 | 322 | |
82641697 GM |
323 | /* Names of basic faces. */ |
324 | ||
fb4927c4 | 325 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 326 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
53abc3bf | 327 | Lisp_Object Qmode_line_inactive, Qvertical_border; |
fb4927c4 | 328 | extern Lisp_Object Qmode_line; |
8bd201d6 | 329 | |
92610620 GM |
330 | /* The symbol `face-alias'. A symbols having that property is an |
331 | alias for another face. Value of the property is the name of | |
332 | the aliased face. */ | |
333 | ||
334 | Lisp_Object Qface_alias; | |
335 | ||
d1bf13b3 KS |
336 | extern Lisp_Object Qcircular_list; |
337 | ||
82641697 GM |
338 | /* Default stipple pattern used on monochrome displays. This stipple |
339 | pattern is used on monochrome displays instead of shades of gray | |
340 | for a face background color. See `set-face-stipple' for possible | |
341 | values for this variable. */ | |
342 | ||
343 | Lisp_Object Vface_default_stipple; | |
344 | ||
82641697 GM |
345 | /* Alist of alternative font families. Each element is of the form |
346 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
347 | try FAMILY1, then FAMILY2, ... */ | |
348 | ||
349 | Lisp_Object Vface_alternative_font_family_alist; | |
350 | ||
32fcc231 GM |
351 | /* Alist of alternative font registries. Each element is of the form |
352 | (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be | |
353 | loaded, try REGISTRY1, then REGISTRY2, ... */ | |
354 | ||
355 | Lisp_Object Vface_alternative_font_registry_alist; | |
356 | ||
82641697 GM |
357 | /* Allowed scalable fonts. A value of nil means don't allow any |
358 | scalable fonts. A value of t means allow the use of any scalable | |
359 | font. Otherwise, value must be a list of regular expressions. A | |
360 | font may be scaled if its name matches a regular expression in the | |
361 | list. */ | |
362 | ||
eeffb293 | 363 | Lisp_Object Vscalable_fonts_allowed, Qscalable_fonts_allowed; |
82641697 | 364 | |
c824bfbc KH |
365 | /* List of regular expressions that matches names of fonts to ignore. */ |
366 | ||
367 | Lisp_Object Vface_ignored_fonts; | |
368 | ||
f70400f2 KH |
369 | /* Alist of font name patterns vs the rescaling factor. */ |
370 | ||
371 | Lisp_Object Vface_font_rescale_alist; | |
372 | ||
057df17c GM |
373 | /* Maximum number of fonts to consider in font_list. If not an |
374 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
375 | ||
376 | Lisp_Object Vfont_list_limit; | |
377 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
378 | ||
82641697 GM |
379 | /* The symbols `foreground-color' and `background-color' which can be |
380 | used as part of a `face' property. This is for compatibility with | |
381 | Emacs 20.2. */ | |
382 | ||
383 | Lisp_Object Qforeground_color, Qbackground_color; | |
384 | ||
385 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 386 | |
ff83dbb1 | 387 | Lisp_Object Qface; |
82641697 GM |
388 | extern Lisp_Object Qmouse_face; |
389 | ||
46b00436 KS |
390 | /* Property for basic faces which other faces cannot inherit. */ |
391 | ||
392 | Lisp_Object Qface_no_inherit; | |
393 | ||
82641697 GM |
394 | /* Error symbol for wrong_type_argument in load_pixmap. */ |
395 | ||
fef04523 | 396 | Lisp_Object Qbitmap_spec_p; |
f211082d | 397 | |
82641697 GM |
398 | /* Alist of global face definitions. Each element is of the form |
399 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
400 | is a Lisp vector of face attributes. These faces are used | |
401 | to initialize faces for new frames. */ | |
cb637678 | 402 | |
82641697 | 403 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 404 | |
82641697 | 405 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 406 | |
82641697 | 407 | static int next_lface_id; |
c115973b | 408 | |
82641697 | 409 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 410 | |
82641697 GM |
411 | static Lisp_Object *lface_id_to_name; |
412 | static int lface_id_to_name_size; | |
c115973b | 413 | |
ae4b4ba5 GM |
414 | /* TTY color-related functions (defined in tty-colors.el). */ |
415 | ||
b35df831 | 416 | Lisp_Object Qtty_color_desc, Qtty_color_by_index, Qtty_color_standard_values; |
82641697 | 417 | |
ae4b4ba5 GM |
418 | /* The name of the function used to compute colors on TTYs. */ |
419 | ||
420 | Lisp_Object Qtty_color_alist; | |
421 | ||
422 | /* An alist of defined terminal colors and their RGB values. */ | |
423 | ||
424 | Lisp_Object Vtty_defined_color_alist; | |
425 | ||
82641697 GM |
426 | /* Counter for calls to clear_face_cache. If this counter reaches |
427 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
428 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
429 | ||
430 | static int clear_font_table_count; | |
431 | #define CLEAR_FONT_TABLE_COUNT 100 | |
432 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
433 | ||
434 | /* Non-zero means face attributes have been changed since the last | |
435 | redisplay. Used in redisplay_internal. */ | |
436 | ||
437 | int face_change_count; | |
438 | ||
a4a76b61 GM |
439 | /* Non-zero means don't display bold text if a face's foreground |
440 | and background colors are the inverse of the default colors of the | |
441 | display. This is a kluge to suppress `bold black' foreground text | |
442 | which is hard to read on an LCD monitor. */ | |
443 | ||
444 | int tty_suppress_bold_inverse_default_colors_p; | |
445 | ||
dbc968b8 GM |
446 | /* A list of the form `((x . y))' used to avoid consing in |
447 | Finternal_set_lisp_face_attribute. */ | |
448 | ||
449 | static Lisp_Object Vparam_value_alist; | |
450 | ||
82641697 GM |
451 | /* The total number of colors currently allocated. */ |
452 | ||
453 | #if GLYPH_DEBUG | |
454 | static int ncolors_allocated; | |
455 | static int npixmaps_allocated; | |
456 | static int ngcs; | |
457 | #endif | |
458 | ||
ceeda019 GM |
459 | /* Non-zero means the definition of the `menu' face for new frames has |
460 | been changed. */ | |
461 | ||
462 | int menu_face_changed_default; | |
82641697 GM |
463 | |
464 | \f | |
465 | /* Function prototypes. */ | |
466 | ||
467 | struct font_name; | |
468 | struct table_entry; | |
a0a23346 | 469 | struct named_merge_point; |
82641697 | 470 | |
ae4b4ba5 GM |
471 | static void map_tty_color P_ ((struct frame *, struct face *, |
472 | enum lface_attribute_index, int *)); | |
d1bf13b3 | 473 | static Lisp_Object resolve_face_name P_ ((Lisp_Object, int)); |
53c208f6 | 474 | static int may_use_scalable_font_p P_ ((const char *)); |
82641697 GM |
475 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); |
476 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
a08332c0 | 477 | int, int)); |
82641697 | 478 | static int x_face_list_fonts P_ ((struct frame *, char *, |
ee5be7c3 | 479 | struct font_name **, int, int)); |
82641697 | 480 | static int font_scalable_p P_ ((struct font_name *)); |
82641697 GM |
481 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
482 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
483 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
484 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 485 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 486 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
487 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
488 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
489 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
490 | static char *build_font_name P_ ((struct font_name *)); | |
491 | static void free_font_names P_ ((struct font_name *, int)); | |
492 | static int sorted_font_list P_ ((struct frame *, char *, | |
493 | int (*cmpfn) P_ ((const void *, const void *)), | |
494 | struct font_name **)); | |
32fcc231 GM |
495 | static int font_list_1 P_ ((struct frame *, Lisp_Object, Lisp_Object, |
496 | Lisp_Object, struct font_name **)); | |
39506348 KH |
497 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
498 | Lisp_Object, struct font_name **)); | |
177c0ea7 | 499 | static int try_font_list P_ ((struct frame *, Lisp_Object *, |
54580ab2 KH |
500 | Lisp_Object, Lisp_Object, struct font_name **, |
501 | int)); | |
4a529c42 GM |
502 | static int try_alternative_families P_ ((struct frame *f, Lisp_Object, |
503 | Lisp_Object, struct font_name **)); | |
82641697 | 504 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
505 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
506 | struct face *, int)); | |
82641697 | 507 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 508 | Lisp_Object *, int, struct face *)); |
82641697 GM |
509 | static struct face *realize_tty_face P_ ((struct face_cache *, |
510 | Lisp_Object *, int)); | |
511 | static int realize_basic_faces P_ ((struct frame *)); | |
512 | static int realize_default_face P_ ((struct frame *)); | |
513 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
514 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
515 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
516 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
517 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
518 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
519 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
520 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
521 | static void clear_face_gcs P_ ((struct face_cache *)); | |
522 | static void free_face_cache P_ ((struct face_cache *)); | |
523 | static int face_numeric_weight P_ ((Lisp_Object)); | |
524 | static int face_numeric_slant P_ ((Lisp_Object)); | |
525 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 | 526 | static int face_fontset P_ ((Lisp_Object *)); |
6ae2cd57 | 527 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int, int*)); |
a0a23346 MB |
528 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, |
529 | struct named_merge_point *)); | |
530 | static int merge_face_ref P_ ((struct frame *, Lisp_Object, Lisp_Object *, | |
531 | int, struct named_merge_point *)); | |
39506348 KH |
532 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
533 | Lisp_Object, int, int)); | |
82641697 | 534 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 535 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
536 | static void free_realized_faces P_ ((struct face_cache *)); |
537 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
6ae2cd57 | 538 | struct font_name *, int, int, int *)); |
82641697 GM |
539 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); |
540 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
541 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
542 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
543 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
544 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
545 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
546 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
547 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
548 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
549 | int, int)); | |
550 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
551 | struct font_name *, int, |
552 | Lisp_Object)); | |
82641697 GM |
553 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
554 | struct font_name *, int)); | |
555 | ||
c3cee013 | 556 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
557 | |
558 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
559 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
560 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
561 | int (*cmpfn) P_ ((const void *, const void *)))); | |
562 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
563 | static void x_free_gc P_ ((struct frame *, GC)); | |
d5641fc5 | 564 | static void clear_font_table P_ ((struct x_display_info *)); |
82641697 | 565 | |
c3cee013 JR |
566 | #ifdef WINDOWSNT |
567 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
568 | #endif /* WINDOWSNT */ | |
569 | ||
bce72079 GM |
570 | #ifdef USE_X_TOOLKIT |
571 | static void x_update_menu_appearance P_ ((struct frame *)); | |
9180dc8c PJ |
572 | |
573 | extern void free_frame_menubar P_ ((struct frame *)); | |
bce72079 GM |
574 | #endif /* USE_X_TOOLKIT */ |
575 | ||
c3cee013 | 576 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 577 | |
cb637678 | 578 | \f |
82641697 GM |
579 | /*********************************************************************** |
580 | Utilities | |
581 | ***********************************************************************/ | |
c115973b | 582 | |
87485d6f | 583 | #ifdef HAVE_X_WINDOWS |
cb637678 | 584 | |
a435fc2a GM |
585 | #ifdef DEBUG_X_COLORS |
586 | ||
587 | /* The following is a poor mans infrastructure for debugging X color | |
588 | allocation problems on displays with PseudoColor-8. Some X servers | |
589 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
590 | color reference counts completely so that they don't signal an | |
591 | error when a color is freed whose reference count is already 0. | |
592 | Other X servers do. To help me debug this, the following code | |
593 | implements a simple reference counting schema of its own, for a | |
594 | single display/screen. --gerd. */ | |
595 | ||
596 | /* Reference counts for pixel colors. */ | |
597 | ||
598 | int color_count[256]; | |
599 | ||
600 | /* Register color PIXEL as allocated. */ | |
601 | ||
602 | void | |
603 | register_color (pixel) | |
604 | unsigned long pixel; | |
605 | { | |
606 | xassert (pixel < 256); | |
607 | ++color_count[pixel]; | |
608 | } | |
609 | ||
610 | ||
611 | /* Register color PIXEL as deallocated. */ | |
612 | ||
613 | void | |
614 | unregister_color (pixel) | |
615 | unsigned long pixel; | |
616 | { | |
617 | xassert (pixel < 256); | |
618 | if (color_count[pixel] > 0) | |
619 | --color_count[pixel]; | |
620 | else | |
621 | abort (); | |
622 | } | |
623 | ||
624 | ||
625 | /* Register N colors from PIXELS as deallocated. */ | |
626 | ||
627 | void | |
628 | unregister_colors (pixels, n) | |
629 | unsigned long *pixels; | |
630 | int n; | |
631 | { | |
632 | int i; | |
633 | for (i = 0; i < n; ++i) | |
634 | unregister_color (pixels[i]); | |
635 | } | |
636 | ||
08dc08dc GM |
637 | |
638 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
7ee72033 MB |
639 | doc: /* Dump currently allocated colors to stderr. */) |
640 | () | |
08dc08dc GM |
641 | { |
642 | int i, n; | |
643 | ||
644 | fputc ('\n', stderr); | |
178c5d9c | 645 | |
08dc08dc GM |
646 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
647 | if (color_count[i]) | |
648 | { | |
649 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
650 | ++n; | |
651 | if (n % 5 == 0) | |
652 | fputc ('\n', stderr); | |
653 | else | |
654 | fputc ('\t', stderr); | |
655 | } | |
656 | ||
657 | if (n % 5 != 0) | |
658 | fputc ('\n', stderr); | |
659 | return Qnil; | |
660 | } | |
661 | ||
a435fc2a GM |
662 | #endif /* DEBUG_X_COLORS */ |
663 | ||
d12d0a9b | 664 | |
1f847cf8 GM |
665 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
666 | color values. Interrupt input must be blocked when this function | |
667 | is called. */ | |
668 | ||
669 | void | |
670 | x_free_colors (f, pixels, npixels) | |
671 | struct frame *f; | |
672 | unsigned long *pixels; | |
673 | int npixels; | |
674 | { | |
675 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
676 | ||
677 | /* If display has an immutable color map, freeing colors is not | |
678 | necessary and some servers don't allow it. So don't do it. */ | |
679 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
680 | { | |
a435fc2a | 681 | #ifdef DEBUG_X_COLORS |
08dc08dc | 682 | unregister_colors (pixels, npixels); |
a435fc2a | 683 | #endif |
513c5806 GM |
684 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
685 | pixels, npixels, 0); | |
08dc08dc GM |
686 | } |
687 | } | |
688 | ||
689 | ||
690 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
691 | color values. Interrupt input must be blocked when this function | |
692 | is called. */ | |
693 | ||
694 | void | |
695 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
696 | Display *dpy; | |
697 | Screen *screen; | |
698 | Colormap cmap; | |
699 | unsigned long *pixels; | |
700 | int npixels; | |
701 | { | |
702 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
703 | int class = dpyinfo->visual->class; | |
704 | ||
705 | /* If display has an immutable color map, freeing colors is not | |
706 | necessary and some servers don't allow it. So don't do it. */ | |
707 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
708 | { | |
a435fc2a | 709 | #ifdef DEBUG_X_COLORS |
08dc08dc | 710 | unregister_colors (pixels, npixels); |
a435fc2a | 711 | #endif |
513c5806 | 712 | XFreeColors (dpy, cmap, pixels, npixels, 0); |
1f847cf8 GM |
713 | } |
714 | } | |
715 | ||
08dc08dc | 716 | |
82641697 GM |
717 | /* Create and return a GC for use on frame F. GC values and mask |
718 | are given by XGCV and MASK. */ | |
719 | ||
720 | static INLINE GC | |
721 | x_create_gc (f, mask, xgcv) | |
cb637678 | 722 | struct frame *f; |
82641697 GM |
723 | unsigned long mask; |
724 | XGCValues *xgcv; | |
c115973b JB |
725 | { |
726 | GC gc; | |
82641697 GM |
727 | BLOCK_INPUT; |
728 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
729 | UNBLOCK_INPUT; | |
730 | IF_DEBUG (++ngcs); | |
731 | return gc; | |
732 | } | |
c115973b | 733 | |
42120bc7 | 734 | |
82641697 GM |
735 | /* Free GC which was used on frame F. */ |
736 | ||
737 | static INLINE void | |
738 | x_free_gc (f, gc) | |
739 | struct frame *f; | |
740 | GC gc; | |
741 | { | |
660ed669 | 742 | BLOCK_INPUT; |
a6d8ba25 | 743 | IF_DEBUG (xassert (--ngcs >= 0)); |
82641697 GM |
744 | XFreeGC (FRAME_X_DISPLAY (f), gc); |
745 | UNBLOCK_INPUT; | |
746 | } | |
660ed669 | 747 | |
82641697 | 748 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 749 | |
c3cee013 JR |
750 | #ifdef WINDOWSNT |
751 | /* W32 emulation of GCs */ | |
752 | ||
753 | static INLINE GC | |
754 | x_create_gc (f, mask, xgcv) | |
755 | struct frame *f; | |
756 | unsigned long mask; | |
757 | XGCValues *xgcv; | |
758 | { | |
759 | GC gc; | |
760 | BLOCK_INPUT; | |
761 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
762 | UNBLOCK_INPUT; | |
763 | IF_DEBUG (++ngcs); | |
764 | return gc; | |
765 | } | |
766 | ||
767 | ||
768 | /* Free GC which was used on frame F. */ | |
769 | ||
770 | static INLINE void | |
771 | x_free_gc (f, gc) | |
772 | struct frame *f; | |
773 | GC gc; | |
774 | { | |
775 | BLOCK_INPUT; | |
a6d8ba25 | 776 | IF_DEBUG (xassert (--ngcs >= 0)); |
c3cee013 JR |
777 | xfree (gc); |
778 | UNBLOCK_INPUT; | |
779 | } | |
780 | ||
781 | #endif /* WINDOWSNT */ | |
660ed669 | 782 | |
e0f712ba AC |
783 | #ifdef MAC_OS |
784 | /* Mac OS emulation of GCs */ | |
785 | ||
e0f712ba AC |
786 | static INLINE GC |
787 | x_create_gc (f, mask, xgcv) | |
788 | struct frame *f; | |
789 | unsigned long mask; | |
790 | XGCValues *xgcv; | |
791 | { | |
792 | GC gc; | |
793 | gc = XCreateGC (FRAME_MAC_DISPLAY (f), FRAME_MAC_WINDOW (f), mask, xgcv); | |
794 | return gc; | |
795 | } | |
796 | ||
797 | static INLINE void | |
798 | x_free_gc (f, gc) | |
799 | struct frame *f; | |
800 | GC gc; | |
801 | { | |
802 | XFreeGC (FRAME_MAC_DISPLAY (f), gc); | |
803 | } | |
804 | ||
805 | #endif /* MAC_OS */ | |
806 | ||
82641697 GM |
807 | /* Like stricmp. Used to compare parts of font names which are in |
808 | ISO8859-1. */ | |
809 | ||
810 | int | |
811 | xstricmp (s1, s2) | |
23889aba | 812 | const unsigned char *s1, *s2; |
82641697 GM |
813 | { |
814 | while (*s1 && *s2) | |
95887807 | 815 | { |
82641697 GM |
816 | unsigned char c1 = tolower (*s1); |
817 | unsigned char c2 = tolower (*s2); | |
818 | if (c1 != c2) | |
819 | return c1 < c2 ? -1 : 1; | |
820 | ++s1, ++s2; | |
95887807 | 821 | } |
cd0bb842 | 822 | |
82641697 GM |
823 | if (*s1 == 0) |
824 | return *s2 == 0 ? 0 : -1; | |
825 | return 1; | |
826 | } | |
660ed669 | 827 | |
660ed669 | 828 | |
82641697 | 829 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 830 | |
82641697 GM |
831 | static unsigned char * |
832 | xstrlwr (s) | |
833 | unsigned char *s; | |
834 | { | |
835 | unsigned char *p = s; | |
836 | ||
837 | for (p = s; *p; ++p) | |
9655b404 YM |
838 | /* On Mac OS X 10.3, tolower also converts non-ASCII characters |
839 | for some locales. */ | |
840 | if (isascii (*p)) | |
841 | *p = tolower (*p); | |
82641697 GM |
842 | |
843 | return s; | |
c115973b | 844 | } |
cb637678 | 845 | |
42120bc7 | 846 | |
82641697 GM |
847 | /* Signal `error' with message S, and additional argument ARG. */ |
848 | ||
849 | static void | |
850 | signal_error (s, arg) | |
851 | char *s; | |
852 | Lisp_Object arg; | |
42120bc7 | 853 | { |
82641697 GM |
854 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
855 | } | |
42120bc7 | 856 | |
82641697 | 857 | |
c0617987 GM |
858 | /* If FRAME is nil, return a pointer to the selected frame. |
859 | Otherwise, check that FRAME is a live frame, and return a pointer | |
860 | to it. NPARAM is the parameter number of FRAME, for | |
861 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
862 | Lisp function definitions. */ | |
82641697 GM |
863 | |
864 | static INLINE struct frame * | |
865 | frame_or_selected_frame (frame, nparam) | |
866 | Lisp_Object frame; | |
867 | int nparam; | |
868 | { | |
82641697 | 869 | if (NILP (frame)) |
c0617987 | 870 | frame = selected_frame; |
178c5d9c | 871 | |
b7826503 | 872 | CHECK_LIVE_FRAME (frame); |
c0617987 | 873 | return XFRAME (frame); |
42120bc7 | 874 | } |
82641697 | 875 | |
42120bc7 | 876 | \f |
82641697 GM |
877 | /*********************************************************************** |
878 | Frames and faces | |
879 | ***********************************************************************/ | |
cd0bb842 | 880 | |
82641697 | 881 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 882 | |
82641697 GM |
883 | void |
884 | init_frame_faces (f) | |
cb637678 | 885 | struct frame *f; |
cb637678 | 886 | { |
82641697 GM |
887 | /* Make a face cache, if F doesn't have one. */ |
888 | if (FRAME_FACE_CACHE (f) == NULL) | |
889 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 890 | |
c3cee013 | 891 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 892 | /* Make the image cache. */ |
c3cee013 | 893 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
894 | { |
895 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
896 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
897 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
898 | } | |
c3cee013 | 899 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 900 | |
178c5d9c | 901 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
902 | parameters to realize basic faces at this point. */ |
903 | #ifdef HAVE_X_WINDOWS | |
904 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
905 | #endif |
906 | #ifdef WINDOWSNT | |
907 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
f00691a3 AC |
908 | #endif |
909 | #ifdef MAC_OS | |
910 | if (!FRAME_MAC_P (f) || FRAME_MAC_WINDOW (f)) | |
82641697 GM |
911 | #endif |
912 | if (!realize_basic_faces (f)) | |
913 | abort (); | |
914 | } | |
cb637678 | 915 | |
cb637678 | 916 | |
82641697 | 917 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 918 | |
82641697 GM |
919 | void |
920 | free_frame_faces (f) | |
cb637678 | 921 | struct frame *f; |
cb637678 | 922 | { |
82641697 | 923 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 924 | |
82641697 GM |
925 | if (face_cache) |
926 | { | |
927 | free_face_cache (face_cache); | |
928 | FRAME_FACE_CACHE (f) = NULL; | |
929 | } | |
660ed669 | 930 | |
c3cee013 JR |
931 | #ifdef HAVE_WINDOW_SYSTEM |
932 | if (FRAME_WINDOW_P (f)) | |
195f798e | 933 | { |
82641697 GM |
934 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
935 | if (image_cache) | |
195f798e | 936 | { |
82641697 GM |
937 | --image_cache->refcount; |
938 | if (image_cache->refcount == 0) | |
939 | free_image_cache (f); | |
195f798e RS |
940 | } |
941 | } | |
c3cee013 | 942 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
943 | } |
944 | ||
82641697 | 945 | |
8bd201d6 GM |
946 | /* Clear face caches, and recompute basic faces for frame F. Call |
947 | this after changing frame parameters on which those faces depend, | |
948 | or when realized faces have been freed due to changing attributes | |
949 | of named faces. */ | |
82641697 GM |
950 | |
951 | void | |
952 | recompute_basic_faces (f) | |
cb637678 | 953 | struct frame *f; |
cb637678 | 954 | { |
82641697 GM |
955 | if (FRAME_FACE_CACHE (f)) |
956 | { | |
8bd201d6 | 957 | clear_face_cache (0); |
18df9369 GM |
958 | if (!realize_basic_faces (f)) |
959 | abort (); | |
82641697 GM |
960 | } |
961 | } | |
cb637678 | 962 | |
cb637678 | 963 | |
82641697 GM |
964 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
965 | try to free unused fonts, too. */ | |
cb637678 | 966 | |
adfea139 | 967 | void |
82641697 GM |
968 | clear_face_cache (clear_fonts_p) |
969 | int clear_fonts_p; | |
cb637678 | 970 | { |
c3cee013 | 971 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
972 | Lisp_Object tail, frame; |
973 | struct frame *f; | |
828e66d1 | 974 | |
82641697 GM |
975 | if (clear_fonts_p |
976 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 977 | { |
d5641fc5 | 978 | struct x_display_info *dpyinfo; |
177c0ea7 | 979 | |
d5641fc5 GM |
980 | /* Fonts are common for frames on one display, i.e. on |
981 | one X screen. */ | |
982 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) | |
983 | if (dpyinfo->n_fonts > CLEAR_FONT_TABLE_NFONTS) | |
984 | clear_font_table (dpyinfo); | |
177c0ea7 | 985 | |
82641697 GM |
986 | /* From time to time see if we can unload some fonts. This also |
987 | frees all realized faces on all frames. Fonts needed by | |
988 | faces will be loaded again when faces are realized again. */ | |
989 | clear_font_table_count = 0; | |
195f798e | 990 | |
82641697 | 991 | FOR_EACH_FRAME (tail, frame) |
195f798e | 992 | { |
d5641fc5 | 993 | struct frame *f = XFRAME (frame); |
c3cee013 | 994 | if (FRAME_WINDOW_P (f) |
82641697 | 995 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
d5641fc5 | 996 | free_all_realized_faces (frame); |
82641697 GM |
997 | } |
998 | } | |
999 | else | |
1000 | { | |
1001 | /* Clear GCs of realized faces. */ | |
1002 | FOR_EACH_FRAME (tail, frame) | |
1003 | { | |
1004 | f = XFRAME (frame); | |
c3cee013 | 1005 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
1006 | { |
1007 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
1008 | clear_image_cache (f, 0); | |
195f798e RS |
1009 | } |
1010 | } | |
828e66d1 | 1011 | } |
c3cee013 | 1012 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
1013 | } |
1014 | ||
82641697 GM |
1015 | |
1016 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
7ee72033 MB |
1017 | doc: /* Clear face caches on all frames. |
1018 | Optional THOROUGHLY non-nil means try to free unused fonts, too. */) | |
1019 | (thoroughly) | |
6a3f48c7 | 1020 | Lisp_Object thoroughly; |
cd0bb842 | 1021 | { |
6a3f48c7 | 1022 | clear_face_cache (!NILP (thoroughly)); |
ae4b4ba5 GM |
1023 | ++face_change_count; |
1024 | ++windows_or_buffers_changed; | |
82641697 GM |
1025 | return Qnil; |
1026 | } | |
1027 | ||
1028 | ||
1029 | ||
c3cee013 | 1030 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1031 | |
1032 | ||
4cba8c0b GM |
1033 | /* Remove fonts from the font table of DPYINFO except for the default |
1034 | ASCII fonts of frames on that display. Called from clear_face_cache | |
39506348 | 1035 | from time to time. */ |
82641697 GM |
1036 | |
1037 | static void | |
d5641fc5 GM |
1038 | clear_font_table (dpyinfo) |
1039 | struct x_display_info *dpyinfo; | |
82641697 | 1040 | { |
82641697 GM |
1041 | int i; |
1042 | ||
d5641fc5 | 1043 | /* Free those fonts that are not used by frames on DPYINFO. */ |
39506348 KH |
1044 | for (i = 0; i < dpyinfo->n_fonts; ++i) |
1045 | { | |
1046 | struct font_info *font_info = dpyinfo->font_table + i; | |
d5641fc5 GM |
1047 | Lisp_Object tail, frame; |
1048 | ||
1049 | /* Check if slot is already free. */ | |
1050 | if (font_info->name == NULL) | |
1051 | continue; | |
1052 | ||
3d90c96c | 1053 | /* Don't free a default font of some frame. */ |
d5641fc5 GM |
1054 | FOR_EACH_FRAME (tail, frame) |
1055 | { | |
1056 | struct frame *f = XFRAME (frame); | |
1057 | if (FRAME_WINDOW_P (f) | |
d5641fc5 GM |
1058 | && font_info->font == FRAME_FONT (f)) |
1059 | break; | |
1060 | } | |
82641697 | 1061 | |
d5641fc5 | 1062 | if (!NILP (tail)) |
39506348 | 1063 | continue; |
82641697 | 1064 | |
39506348 KH |
1065 | /* Free names. */ |
1066 | if (font_info->full_name != font_info->name) | |
1067 | xfree (font_info->full_name); | |
1068 | xfree (font_info->name); | |
82641697 | 1069 | |
39506348 KH |
1070 | /* Free the font. */ |
1071 | BLOCK_INPUT; | |
c3cee013 | 1072 | #ifdef HAVE_X_WINDOWS |
39506348 | 1073 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1074 | #endif |
1075 | #ifdef WINDOWSNT | |
39506348 | 1076 | w32_unload_font (dpyinfo, font_info->font); |
b15325b2 ST |
1077 | #endif |
1078 | #ifdef MAC_OS | |
1079 | mac_unload_font (dpyinfo, font_info->font); | |
c3cee013 | 1080 | #endif |
39506348 | 1081 | UNBLOCK_INPUT; |
82641697 | 1082 | |
39506348 KH |
1083 | /* Mark font table slot free. */ |
1084 | font_info->font = NULL; | |
1085 | font_info->name = font_info->full_name = NULL; | |
1086 | } | |
82641697 GM |
1087 | } |
1088 | ||
c3cee013 | 1089 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1090 | |
1091 | ||
1092 | \f | |
1093 | /*********************************************************************** | |
1094 | X Pixmaps | |
1095 | ***********************************************************************/ | |
1096 | ||
c3cee013 | 1097 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1098 | |
fef04523 | 1099 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
7ee72033 | 1100 | doc: /* Value is non-nil if OBJECT is a valid bitmap specification. |
228299fa GM |
1101 | A bitmap specification is either a string, a file name, or a list |
1102 | \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap, | |
1103 | HEIGHT is its height, and DATA is a string containing the bits of | |
1104 | the pixmap. Bits are stored row by row, each row occupies | |
7ee72033 MB |
1105 | \(WIDTH + 7)/8 bytes. */) |
1106 | (object) | |
82641697 GM |
1107 | Lisp_Object object; |
1108 | { | |
c7ae3284 | 1109 | int pixmap_p = 0; |
178c5d9c | 1110 | |
c7ae3284 GM |
1111 | if (STRINGP (object)) |
1112 | /* If OBJECT is a string, it's a file name. */ | |
1113 | pixmap_p = 1; | |
1114 | else if (CONSP (object)) | |
1115 | { | |
1116 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1117 | HEIGHT must be integers > 0, and DATA must be string large | |
1118 | enough to hold a bitmap of the specified size. */ | |
1119 | Lisp_Object width, height, data; | |
1120 | ||
1121 | height = width = data = Qnil; | |
178c5d9c | 1122 | |
c7ae3284 GM |
1123 | if (CONSP (object)) |
1124 | { | |
1125 | width = XCAR (object); | |
1126 | object = XCDR (object); | |
1127 | if (CONSP (object)) | |
1128 | { | |
1129 | height = XCAR (object); | |
1130 | object = XCDR (object); | |
1131 | if (CONSP (object)) | |
1132 | data = XCAR (object); | |
1133 | } | |
1134 | } | |
cd0bb842 | 1135 | |
c7ae3284 GM |
1136 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1137 | { | |
1138 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1139 | / BITS_PER_CHAR); | |
d5db4077 | 1140 | if (SBYTES (data) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1141 | pixmap_p = 1; |
1142 | } | |
1143 | } | |
1144 | ||
1145 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1146 | } |
1147 | ||
cd0bb842 | 1148 | |
82641697 GM |
1149 | /* Load a bitmap according to NAME (which is either a file name or a |
1150 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1151 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1152 | bitmap cannot be loaded, display a message saying so, and return | |
1153 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1154 | if these pointers are not null. */ | |
cd0bb842 | 1155 | |
82641697 | 1156 | static int |
cd0bb842 | 1157 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1158 | FRAME_PTR f; |
cd0bb842 RS |
1159 | Lisp_Object name; |
1160 | unsigned int *w_ptr, *h_ptr; | |
1161 | { | |
1162 | int bitmap_id; | |
1163 | Lisp_Object tem; | |
1164 | ||
1165 | if (NILP (name)) | |
82641697 | 1166 | return 0; |
cd0bb842 | 1167 | |
fef04523 | 1168 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1169 | if (NILP (tem)) |
fef04523 | 1170 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1171 | |
1172 | BLOCK_INPUT; | |
cd0bb842 RS |
1173 | if (CONSP (name)) |
1174 | { | |
1175 | /* Decode a bitmap spec into a bitmap. */ | |
1176 | ||
1177 | int h, w; | |
1178 | Lisp_Object bits; | |
1179 | ||
1180 | w = XINT (Fcar (name)); | |
1181 | h = XINT (Fcar (Fcdr (name))); | |
1182 | bits = Fcar (Fcdr (Fcdr (name))); | |
1183 | ||
d5db4077 | 1184 | bitmap_id = x_create_bitmap_from_data (f, SDATA (bits), |
cd0bb842 RS |
1185 | w, h); |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | /* It must be a string -- a file name. */ | |
1190 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1191 | } | |
1192 | UNBLOCK_INPUT; | |
1193 | ||
7812a96f | 1194 | if (bitmap_id < 0) |
82641697 | 1195 | { |
1b8f7fbc | 1196 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1197 | bitmap_id = 0; |
cd0bb842 | 1198 | |
82641697 GM |
1199 | if (w_ptr) |
1200 | *w_ptr = 0; | |
1201 | if (h_ptr) | |
1202 | *h_ptr = 0; | |
1203 | } | |
1204 | else | |
1205 | { | |
1206 | #if GLYPH_DEBUG | |
1207 | ++npixmaps_allocated; | |
1208 | #endif | |
1209 | if (w_ptr) | |
1210 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1211 | ||
1212 | if (h_ptr) | |
1213 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1214 | } | |
cd0bb842 RS |
1215 | |
1216 | return bitmap_id; | |
cb637678 | 1217 | } |
87485d6f | 1218 | |
c3cee013 | 1219 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1220 | |
87485d6f | 1221 | |
82641697 | 1222 | \f |
82641697 GM |
1223 | /*********************************************************************** |
1224 | Fonts | |
1225 | ***********************************************************************/ | |
1226 | ||
c3cee013 | 1227 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1228 | |
39506348 KH |
1229 | /* Load font of face FACE which is used on frame F to display |
1230 | character C. The name of the font to load is determined by lface | |
1231 | and fontset of FACE. */ | |
82641697 GM |
1232 | |
1233 | static void | |
39506348 | 1234 | load_face_font (f, face, c) |
82641697 GM |
1235 | struct frame *f; |
1236 | struct face *face; | |
39506348 | 1237 | int c; |
87485d6f | 1238 | { |
82641697 | 1239 | struct font_info *font_info = NULL; |
39506348 | 1240 | char *font_name; |
6ae2cd57 | 1241 | int needs_overstrike; |
178c5d9c | 1242 | |
82641697 | 1243 | face->font_info_id = -1; |
82641697 | 1244 | face->font = NULL; |
39506348 | 1245 | |
6ae2cd57 MB |
1246 | font_name = choose_face_font (f, face->lface, face->fontset, c, |
1247 | &needs_overstrike); | |
39506348 KH |
1248 | if (!font_name) |
1249 | return; | |
1250 | ||
82641697 | 1251 | BLOCK_INPUT; |
39506348 | 1252 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1253 | UNBLOCK_INPUT; |
1254 | ||
1255 | if (font_info) | |
1256 | { | |
39506348 | 1257 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1258 | face->font = font_info->font; |
1259 | face->font_name = font_info->full_name; | |
6ae2cd57 | 1260 | face->overstrike = needs_overstrike; |
39506348 | 1261 | if (face->gc) |
82641697 | 1262 | { |
39506348 KH |
1263 | x_free_gc (f, face->gc); |
1264 | face->gc = 0; | |
82641697 GM |
1265 | } |
1266 | } | |
39506348 | 1267 | else |
1b8f7fbc | 1268 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1269 | build_string (font_name), Qnil); |
39506348 | 1270 | xfree (font_name); |
87485d6f MW |
1271 | } |
1272 | ||
c3cee013 | 1273 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1274 | |
87485d6f | 1275 | |
82641697 GM |
1276 | \f |
1277 | /*********************************************************************** | |
1278 | X Colors | |
1279 | ***********************************************************************/ | |
1280 | ||
b35df831 MB |
1281 | /* Parse RGB_LIST, and fill in the RGB fields of COLOR. |
1282 | RGB_LIST should contain (at least) 3 lisp integers. | |
1283 | Return 0 if there's a problem with RGB_LIST, otherwise return 1. */ | |
1284 | ||
1285 | static int | |
1286 | parse_rgb_list (rgb_list, color) | |
1287 | Lisp_Object rgb_list; | |
1288 | XColor *color; | |
1289 | { | |
1290 | #define PARSE_RGB_LIST_FIELD(field) \ | |
1291 | if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \ | |
1292 | { \ | |
1293 | color->field = XINT (XCAR (rgb_list)); \ | |
1294 | rgb_list = XCDR (rgb_list); \ | |
1295 | } \ | |
1296 | else \ | |
1297 | return 0; | |
1298 | ||
1299 | PARSE_RGB_LIST_FIELD (red); | |
1300 | PARSE_RGB_LIST_FIELD (green); | |
1301 | PARSE_RGB_LIST_FIELD (blue); | |
1302 | ||
1303 | return 1; | |
1304 | } | |
1305 | ||
1306 | ||
1307 | /* Lookup on frame F the color described by the lisp string COLOR. | |
1308 | The resulting tty color is returned in TTY_COLOR; if STD_COLOR is | |
1309 | non-zero, then the `standard' definition of the same color is | |
1310 | returned in it. */ | |
1311 | ||
1312 | static int | |
1313 | tty_lookup_color (f, color, tty_color, std_color) | |
1314 | struct frame *f; | |
1315 | Lisp_Object color; | |
1316 | XColor *tty_color, *std_color; | |
1317 | { | |
1318 | Lisp_Object frame, color_desc; | |
1319 | ||
1320 | if (!STRINGP (color) || NILP (Ffboundp (Qtty_color_desc))) | |
1321 | return 0; | |
1322 | ||
1323 | XSETFRAME (frame, f); | |
1324 | ||
1325 | color_desc = call2 (Qtty_color_desc, color, frame); | |
1326 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) | |
1327 | { | |
1328 | Lisp_Object rgb; | |
1329 | ||
1330 | if (! INTEGERP (XCAR (XCDR (color_desc)))) | |
1331 | return 0; | |
1332 | ||
1333 | tty_color->pixel = XINT (XCAR (XCDR (color_desc))); | |
1334 | ||
1335 | rgb = XCDR (XCDR (color_desc)); | |
1336 | if (! parse_rgb_list (rgb, tty_color)) | |
1337 | return 0; | |
1338 | ||
1339 | /* Should we fill in STD_COLOR too? */ | |
1340 | if (std_color) | |
1341 | { | |
1342 | /* Default STD_COLOR to the same as TTY_COLOR. */ | |
1343 | *std_color = *tty_color; | |
1344 | ||
1345 | /* Do a quick check to see if the returned descriptor is | |
1346 | actually _exactly_ equal to COLOR, otherwise we have to | |
1347 | lookup STD_COLOR separately. If it's impossible to lookup | |
1348 | a standard color, we just give up and use TTY_COLOR. */ | |
1349 | if ((!STRINGP (XCAR (color_desc)) | |
1350 | || NILP (Fstring_equal (color, XCAR (color_desc)))) | |
51f86bfc | 1351 | && !NILP (Ffboundp (Qtty_color_standard_values))) |
b35df831 MB |
1352 | { |
1353 | /* Look up STD_COLOR separately. */ | |
1354 | rgb = call1 (Qtty_color_standard_values, color); | |
1355 | if (! parse_rgb_list (rgb, std_color)) | |
1356 | return 0; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | return 1; | |
1361 | } | |
1362 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) | |
1363 | /* We were called early during startup, and the colors are not | |
1364 | yet set up in tty-defined-color-alist. Don't return a failure | |
1365 | indication, since this produces the annoying "Unable to | |
1366 | load color" messages in the *Messages* buffer. */ | |
1367 | return 1; | |
1368 | else | |
1369 | /* tty-color-desc seems to have returned a bad value. */ | |
1370 | return 0; | |
1371 | } | |
1372 | ||
2d764c78 | 1373 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1374 | |
2d764c78 EZ |
1375 | int |
1376 | tty_defined_color (f, color_name, color_def, alloc) | |
1377 | struct frame *f; | |
1378 | char *color_name; | |
1379 | XColor *color_def; | |
1380 | int alloc; | |
1381 | { | |
2d764c78 EZ |
1382 | int status = 1; |
1383 | ||
b35df831 | 1384 | /* Defaults. */ |
177c0ea7 | 1385 | color_def->pixel = FACE_TTY_DEFAULT_COLOR; |
b35df831 MB |
1386 | color_def->red = 0; |
1387 | color_def->blue = 0; | |
1388 | color_def->green = 0; | |
a61c12d5 | 1389 | |
b35df831 MB |
1390 | if (*color_name) |
1391 | status = tty_lookup_color (f, build_string (color_name), color_def, 0); | |
1392 | ||
1393 | if (color_def->pixel == FACE_TTY_DEFAULT_COLOR && *color_name) | |
f9d2fdc4 EZ |
1394 | { |
1395 | if (strcmp (color_name, "unspecified-fg") == 0) | |
b35df831 | 1396 | color_def->pixel = FACE_TTY_DEFAULT_FG_COLOR; |
f9d2fdc4 | 1397 | else if (strcmp (color_name, "unspecified-bg") == 0) |
b35df831 | 1398 | color_def->pixel = FACE_TTY_DEFAULT_BG_COLOR; |
f9d2fdc4 EZ |
1399 | } |
1400 | ||
b35df831 | 1401 | if (color_def->pixel != FACE_TTY_DEFAULT_COLOR) |
3b451f74 EZ |
1402 | status = 1; |
1403 | ||
2d764c78 EZ |
1404 | return status; |
1405 | } | |
1406 | ||
08dc08dc GM |
1407 | |
1408 | /* Decide if color named COLOR_NAME is valid for the display | |
1409 | associated with the frame F; if so, return the rgb values in | |
1410 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1411 | |
1412 | This does the right thing for any type of frame. */ | |
08dc08dc | 1413 | |
2d764c78 EZ |
1414 | int |
1415 | defined_color (f, color_name, color_def, alloc) | |
1416 | struct frame *f; | |
1417 | char *color_name; | |
1418 | XColor *color_def; | |
1419 | int alloc; | |
1420 | { | |
1421 | if (!FRAME_WINDOW_P (f)) | |
1422 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1423 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1424 | else if (FRAME_X_P (f)) |
1425 | return x_defined_color (f, color_name, color_def, alloc); | |
1426 | #endif | |
1427 | #ifdef WINDOWSNT | |
1428 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1429 | return w32_defined_color (f, color_name, color_def, alloc); |
1430 | #endif | |
e0f712ba | 1431 | #ifdef MAC_OS |
2d764c78 | 1432 | else if (FRAME_MAC_P (f)) |
2d764c78 EZ |
1433 | return mac_defined_color (f, color_name, color_def, alloc); |
1434 | #endif | |
1435 | else | |
1436 | abort (); | |
1437 | } | |
1438 | ||
08dc08dc GM |
1439 | |
1440 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1441 | Lisp string. */ | |
2d764c78 EZ |
1442 | |
1443 | Lisp_Object | |
1444 | tty_color_name (f, idx) | |
1445 | struct frame *f; | |
1446 | int idx; | |
1447 | { | |
2d764c78 EZ |
1448 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1449 | { | |
a61c12d5 EZ |
1450 | Lisp_Object frame; |
1451 | Lisp_Object coldesc; | |
1452 | ||
1453 | XSETFRAME (frame, f); | |
1454 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1455 | |
1456 | if (!NILP (coldesc)) | |
1457 | return XCAR (coldesc); | |
1458 | } | |
1459 | #ifdef MSDOS | |
1460 | /* We can have an MSDOG frame under -nw for a short window of | |
1461 | opportunity before internal_terminal_init is called. DTRT. */ | |
1462 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1463 | return msdos_stdcolor_name (idx); | |
1464 | #endif | |
1465 | ||
ef917393 EZ |
1466 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1467 | return build_string (unspecified_fg); | |
1468 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1469 | return build_string (unspecified_bg); | |
c3cee013 JR |
1470 | |
1471 | #ifdef WINDOWSNT | |
1472 | return vga_stdcolor_name (idx); | |
1473 | #endif | |
1474 | ||
ef917393 | 1475 | return Qunspecified; |
2d764c78 | 1476 | } |
82641697 | 1477 | |
08dc08dc | 1478 | |
82641697 | 1479 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
71433d39 RS |
1480 | black) on frame F. |
1481 | ||
1482 | The criterion implemented here is not a terribly sophisticated one. */ | |
82641697 GM |
1483 | |
1484 | static int | |
1485 | face_color_gray_p (f, color_name) | |
1486 | struct frame *f; | |
1487 | char *color_name; | |
1488 | { | |
1489 | XColor color; | |
1490 | int gray_p; | |
1491 | ||
1492 | if (defined_color (f, color_name, &color, 0)) | |
71433d39 RS |
1493 | gray_p = (/* Any color sufficiently close to black counts as grey. */ |
1494 | (color.red < 5000 && color.green < 5000 && color.blue < 5000) | |
1495 | || | |
1496 | ((abs (color.red - color.green) | |
1497 | < max (color.red, color.green) / 20) | |
1498 | && (abs (color.green - color.blue) | |
1499 | < max (color.green, color.blue) / 20) | |
1500 | && (abs (color.blue - color.red) | |
1501 | < max (color.blue, color.red) / 20))); | |
87485d6f | 1502 | else |
82641697 | 1503 | gray_p = 0; |
178c5d9c | 1504 | |
82641697 | 1505 | return gray_p; |
87485d6f | 1506 | } |
87485d6f | 1507 | |
cb637678 | 1508 | |
82641697 GM |
1509 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1510 | BACKGROUND_P non-zero means the color will be used as background | |
1511 | color. */ | |
1512 | ||
1513 | static int | |
1514 | face_color_supported_p (f, color_name, background_p) | |
1515 | struct frame *f; | |
1516 | char *color_name; | |
1517 | int background_p; | |
1518 | { | |
1519 | Lisp_Object frame; | |
2d764c78 | 1520 | XColor not_used; |
82641697 GM |
1521 | |
1522 | XSETFRAME (frame, f); | |
066a4c6b | 1523 | return |
6a46b96b | 1524 | #ifdef HAVE_WINDOW_SYSTEM |
066a4c6b SM |
1525 | FRAME_WINDOW_P (f) |
1526 | ? (!NILP (Fxw_display_color_p (frame)) | |
1527 | || xstricmp (color_name, "black") == 0 | |
1528 | || xstricmp (color_name, "white") == 0 | |
1529 | || (background_p | |
1530 | && face_color_gray_p (f, color_name)) | |
1531 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1532 | && face_color_gray_p (f, color_name))) | |
1533 | : | |
1534 | #endif | |
1535 | tty_defined_color (f, color_name, ¬_used, 0); | |
2d764c78 | 1536 | } |
82641697 GM |
1537 | |
1538 | ||
da47150d | 1539 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
7ee72033 | 1540 | doc: /* Return non-nil if COLOR is a shade of gray (or white or black). |
228299fa | 1541 | FRAME specifies the frame and thus the display for interpreting COLOR. |
7ee72033 MB |
1542 | If FRAME is nil or omitted, use the selected frame. */) |
1543 | (color, frame) | |
82641697 | 1544 | Lisp_Object color, frame; |
cb637678 | 1545 | { |
2d764c78 EZ |
1546 | struct frame *f; |
1547 | ||
b7826503 | 1548 | CHECK_STRING (color); |
2d176448 TTN |
1549 | if (NILP (frame)) |
1550 | frame = selected_frame; | |
1551 | else | |
1552 | CHECK_FRAME (frame); | |
2d764c78 | 1553 | f = XFRAME (frame); |
d5db4077 | 1554 | return face_color_gray_p (f, SDATA (color)) ? Qt : Qnil; |
82641697 | 1555 | } |
660ed669 | 1556 | |
fffc2367 | 1557 | |
da47150d | 1558 | DEFUN ("color-supported-p", Fcolor_supported_p, |
2e1bb1c3 | 1559 | Scolor_supported_p, 1, 3, 0, |
7ee72033 | 1560 | doc: /* Return non-nil if COLOR can be displayed on FRAME. |
228299fa | 1561 | BACKGROUND-P non-nil means COLOR is used as a background. |
fc820cc5 | 1562 | Otherwise, this function tells whether it can be used as a foreground. |
228299fa | 1563 | If FRAME is nil or omitted, use the selected frame. |
7ee72033 MB |
1564 | COLOR must be a valid color name. */) |
1565 | (color, frame, background_p) | |
82641697 GM |
1566 | Lisp_Object frame, color, background_p; |
1567 | { | |
2d764c78 EZ |
1568 | struct frame *f; |
1569 | ||
b7826503 | 1570 | CHECK_STRING (color); |
2d176448 TTN |
1571 | if (NILP (frame)) |
1572 | frame = selected_frame; | |
1573 | else | |
1574 | CHECK_FRAME (frame); | |
2d764c78 | 1575 | f = XFRAME (frame); |
d5db4077 | 1576 | if (face_color_supported_p (f, SDATA (color), !NILP (background_p))) |
82641697 GM |
1577 | return Qt; |
1578 | return Qnil; | |
1579 | } | |
7b37f67b | 1580 | |
08dc08dc | 1581 | |
82641697 GM |
1582 | /* Load color with name NAME for use by face FACE on frame F. |
1583 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1584 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1585 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1586 | pixel color. If color cannot be loaded, display a message, and | |
1587 | return the foreground, background or underline color of F, but | |
1588 | record that fact in flags of the face so that we don't try to free | |
1589 | these colors. */ | |
1590 | ||
44747bd0 | 1591 | unsigned long |
82641697 GM |
1592 | load_color (f, face, name, target_index) |
1593 | struct frame *f; | |
1594 | struct face *face; | |
1595 | Lisp_Object name; | |
1596 | enum lface_attribute_index target_index; | |
1597 | { | |
1598 | XColor color; | |
178c5d9c | 1599 | |
82641697 GM |
1600 | xassert (STRINGP (name)); |
1601 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1602 | || target_index == LFACE_BACKGROUND_INDEX | |
1603 | || target_index == LFACE_UNDERLINE_INDEX | |
1604 | || target_index == LFACE_OVERLINE_INDEX | |
1605 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1606 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1607 | |
82641697 GM |
1608 | /* if the color map is full, defined_color will return a best match |
1609 | to the values in an existing cell. */ | |
d5db4077 | 1610 | if (!defined_color (f, SDATA (name), &color, 1)) |
82641697 | 1611 | { |
2d764c78 | 1612 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1613 | |
82641697 | 1614 | switch (target_index) |
1120eb5e | 1615 | { |
82641697 GM |
1616 | case LFACE_FOREGROUND_INDEX: |
1617 | face->foreground_defaulted_p = 1; | |
1618 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1619 | break; | |
178c5d9c | 1620 | |
82641697 GM |
1621 | case LFACE_BACKGROUND_INDEX: |
1622 | face->background_defaulted_p = 1; | |
1623 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1624 | break; | |
178c5d9c | 1625 | |
82641697 GM |
1626 | case LFACE_UNDERLINE_INDEX: |
1627 | face->underline_defaulted_p = 1; | |
1628 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1629 | break; | |
178c5d9c | 1630 | |
82641697 GM |
1631 | case LFACE_OVERLINE_INDEX: |
1632 | face->overline_color_defaulted_p = 1; | |
1633 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1634 | break; |
178c5d9c | 1635 | |
82641697 GM |
1636 | case LFACE_STRIKE_THROUGH_INDEX: |
1637 | face->strike_through_color_defaulted_p = 1; | |
1638 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1639 | break; | |
178c5d9c | 1640 | |
82641697 GM |
1641 | case LFACE_BOX_INDEX: |
1642 | face->box_color_defaulted_p = 1; | |
1643 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1644 | break; | |
1645 | ||
1646 | default: | |
1647 | abort (); | |
1120eb5e | 1648 | } |
82641697 GM |
1649 | } |
1650 | #if GLYPH_DEBUG | |
1651 | else | |
1652 | ++ncolors_allocated; | |
1653 | #endif | |
178c5d9c | 1654 | |
82641697 GM |
1655 | return color.pixel; |
1656 | } | |
1120eb5e | 1657 | |
08dc08dc | 1658 | |
c3cee013 | 1659 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1660 | |
82641697 GM |
1661 | /* Load colors for face FACE which is used on frame F. Colors are |
1662 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1663 | of ATTRS. If the background color specified is not supported on F, | |
1664 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1665 | ||
1666 | static void | |
1667 | load_face_colors (f, face, attrs) | |
1668 | struct frame *f; | |
1669 | struct face *face; | |
1670 | Lisp_Object *attrs; | |
1671 | { | |
1672 | Lisp_Object fg, bg; | |
1673 | ||
1674 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1675 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1676 | ||
1677 | /* Swap colors if face is inverse-video. */ | |
1678 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1679 | { | |
1680 | Lisp_Object tmp; | |
1681 | tmp = fg; | |
1682 | fg = bg; | |
1683 | bg = tmp; | |
1684 | } | |
1685 | ||
1686 | /* Check for support for foreground, not for background because | |
1687 | face_color_supported_p is smart enough to know that grays are | |
1688 | "supported" as background because we are supposed to use stipple | |
1689 | for them. */ | |
d5db4077 | 1690 | if (!face_color_supported_p (f, SDATA (bg), 0) |
fef04523 | 1691 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1692 | { |
1693 | x_destroy_bitmap (f, face->stipple); | |
1694 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1695 | &face->pixmap_w, &face->pixmap_h); | |
1696 | } | |
82641697 | 1697 | |
be8a72f4 | 1698 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1699 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1700 | } |
1701 | ||
660ed669 | 1702 | |
82641697 | 1703 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1704 | |
cb637678 | 1705 | void |
82641697 | 1706 | unload_color (f, pixel) |
cb637678 | 1707 | struct frame *f; |
82641697 | 1708 | unsigned long pixel; |
cb637678 | 1709 | { |
c3cee013 | 1710 | #ifdef HAVE_X_WINDOWS |
30a7ac22 GM |
1711 | if (pixel != -1) |
1712 | { | |
1713 | BLOCK_INPUT; | |
1714 | x_free_colors (f, &pixel, 1); | |
1715 | UNBLOCK_INPUT; | |
1716 | } | |
c3cee013 | 1717 | #endif |
82641697 GM |
1718 | } |
1719 | ||
1720 | ||
1721 | /* Free colors allocated for FACE. */ | |
1722 | ||
1723 | static void | |
1724 | free_face_colors (f, face) | |
1725 | struct frame *f; | |
1726 | struct face *face; | |
1727 | { | |
c3cee013 | 1728 | #ifdef HAVE_X_WINDOWS |
28a072fe GM |
1729 | if (face->colors_copied_bitwise_p) |
1730 | return; | |
1731 | ||
08dc08dc | 1732 | BLOCK_INPUT; |
178c5d9c | 1733 | |
08dc08dc GM |
1734 | if (!face->foreground_defaulted_p) |
1735 | { | |
1736 | x_free_colors (f, &face->foreground, 1); | |
1737 | IF_DEBUG (--ncolors_allocated); | |
1738 | } | |
178c5d9c | 1739 | |
08dc08dc GM |
1740 | if (!face->background_defaulted_p) |
1741 | { | |
1742 | x_free_colors (f, &face->background, 1); | |
1743 | IF_DEBUG (--ncolors_allocated); | |
1744 | } | |
82641697 | 1745 | |
08dc08dc GM |
1746 | if (face->underline_p |
1747 | && !face->underline_defaulted_p) | |
1748 | { | |
1749 | x_free_colors (f, &face->underline_color, 1); | |
1750 | IF_DEBUG (--ncolors_allocated); | |
1751 | } | |
82641697 | 1752 | |
08dc08dc GM |
1753 | if (face->overline_p |
1754 | && !face->overline_color_defaulted_p) | |
1755 | { | |
1756 | x_free_colors (f, &face->overline_color, 1); | |
1757 | IF_DEBUG (--ncolors_allocated); | |
1758 | } | |
82641697 | 1759 | |
08dc08dc GM |
1760 | if (face->strike_through_p |
1761 | && !face->strike_through_color_defaulted_p) | |
1762 | { | |
1763 | x_free_colors (f, &face->strike_through_color, 1); | |
1764 | IF_DEBUG (--ncolors_allocated); | |
1765 | } | |
82641697 | 1766 | |
08dc08dc GM |
1767 | if (face->box != FACE_NO_BOX |
1768 | && !face->box_color_defaulted_p) | |
1769 | { | |
1770 | x_free_colors (f, &face->box_color, 1); | |
1771 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1772 | } |
08dc08dc GM |
1773 | |
1774 | UNBLOCK_INPUT; | |
2d764c78 | 1775 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1776 | } |
08dc08dc | 1777 | |
c3cee013 | 1778 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1779 | |
1780 | ||
1781 | \f | |
1782 | /*********************************************************************** | |
1783 | XLFD Font Names | |
1784 | ***********************************************************************/ | |
1785 | ||
1786 | /* An enumerator for each field of an XLFD font name. */ | |
1787 | ||
1788 | enum xlfd_field | |
1789 | { | |
1790 | XLFD_FOUNDRY, | |
1791 | XLFD_FAMILY, | |
1792 | XLFD_WEIGHT, | |
1793 | XLFD_SLANT, | |
1794 | XLFD_SWIDTH, | |
1795 | XLFD_ADSTYLE, | |
1796 | XLFD_PIXEL_SIZE, | |
1797 | XLFD_POINT_SIZE, | |
1798 | XLFD_RESX, | |
1799 | XLFD_RESY, | |
1800 | XLFD_SPACING, | |
1801 | XLFD_AVGWIDTH, | |
1802 | XLFD_REGISTRY, | |
1803 | XLFD_ENCODING, | |
1804 | XLFD_LAST | |
1805 | }; | |
1806 | ||
178c5d9c | 1807 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1808 | the XLFD specification. */ |
1809 | ||
1810 | enum xlfd_slant | |
1811 | { | |
1812 | XLFD_SLANT_UNKNOWN, | |
1813 | XLFD_SLANT_ROMAN, | |
1814 | XLFD_SLANT_ITALIC, | |
1815 | XLFD_SLANT_OBLIQUE, | |
1816 | XLFD_SLANT_REVERSE_ITALIC, | |
1817 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1818 | XLFD_SLANT_OTHER | |
1819 | }; | |
1820 | ||
1821 | /* Relative font weight according to XLFD documentation. */ | |
1822 | ||
1823 | enum xlfd_weight | |
1824 | { | |
1825 | XLFD_WEIGHT_UNKNOWN, | |
1826 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1827 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1828 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1829 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1830 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1831 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1832 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1833 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1834 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1835 | }; | |
1836 | ||
1837 | /* Relative proportionate width. */ | |
1838 | ||
1839 | enum xlfd_swidth | |
1840 | { | |
1841 | XLFD_SWIDTH_UNKNOWN, | |
1842 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1843 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1844 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1845 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1846 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1847 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1848 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1849 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1850 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1851 | }; | |
1852 | ||
1853 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1854 | names to numeric and symbolic values. */ | |
1855 | ||
1856 | struct table_entry | |
1857 | { | |
1858 | char *name; | |
1859 | int numeric; | |
1860 | Lisp_Object *symbol; | |
1861 | }; | |
1862 | ||
1863 | /* Table of XLFD slant names and their numeric and symbolic | |
1864 | representations. This table must be sorted by slant names in | |
1865 | ascending order. */ | |
1866 | ||
1867 | static struct table_entry slant_table[] = | |
1868 | { | |
1869 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1870 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1871 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1872 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1873 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1874 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1875 | }; | |
1876 | ||
1877 | /* Table of XLFD weight names. This table must be sorted by weight | |
1878 | names in ascending order. */ | |
1879 | ||
1880 | static struct table_entry weight_table[] = | |
1881 | { | |
1882 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1883 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1884 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
a288d0d1 | 1885 | {"demi", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
82641697 GM |
1886 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, |
1887 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1888 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1889 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1890 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1891 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1892 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1893 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1894 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1895 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1896 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1897 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1898 | }; | |
1899 | ||
1900 | /* Table of XLFD width names. This table must be sorted by width | |
1901 | names in ascending order. */ | |
1902 | ||
1903 | static struct table_entry swidth_table[] = | |
1904 | { | |
1905 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1906 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1907 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1908 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1909 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1910 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1911 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1912 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1913 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1914 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1915 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1916 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1917 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1918 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1919 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1920 | }; | |
1921 | ||
1922 | /* Structure used to hold the result of splitting font names in XLFD | |
1923 | format into their fields. */ | |
1924 | ||
1925 | struct font_name | |
1926 | { | |
1927 | /* The original name which is modified destructively by | |
1928 | split_font_name. The pointer is kept here to be able to free it | |
1929 | if it was allocated from the heap. */ | |
1930 | char *name; | |
1931 | ||
1932 | /* Font name fields. Each vector element points into `name' above. | |
1933 | Fields are NUL-terminated. */ | |
1934 | char *fields[XLFD_LAST]; | |
1935 | ||
1936 | /* Numeric values for those fields that interest us. See | |
1937 | split_font_name for which these are. */ | |
1938 | int numeric[XLFD_LAST]; | |
8e1b21a7 | 1939 | |
f70400f2 KH |
1940 | /* If the original name matches one of Vface_font_rescale_alist, |
1941 | the value is the corresponding rescale ratio. Otherwise, the | |
1942 | value is 1.0. */ | |
1943 | double rescale_ratio; | |
1944 | ||
8e1b21a7 KH |
1945 | /* Lower value mean higher priority. */ |
1946 | int registry_priority; | |
82641697 GM |
1947 | }; |
1948 | ||
1949 | /* The frame in effect when sorting font names. Set temporarily in | |
1950 | sort_fonts so that it is available in font comparison functions. */ | |
1951 | ||
1952 | static struct frame *font_frame; | |
1953 | ||
1954 | /* Order by which font selection chooses fonts. The default values | |
1955 | mean `first, find a best match for the font width, then for the | |
1956 | font height, then for weight, then for slant.' This variable can be | |
1957 | set via set-face-font-sort-order. */ | |
1958 | ||
e0f712ba | 1959 | #ifdef MAC_OS |
a08332c0 GM |
1960 | static int font_sort_order[4] = { |
1961 | XLFD_SWIDTH, XLFD_POINT_SIZE, XLFD_WEIGHT, XLFD_SLANT | |
1962 | }; | |
1a578e9b | 1963 | #else |
82641697 | 1964 | static int font_sort_order[4]; |
1a578e9b | 1965 | #endif |
82641697 GM |
1966 | |
1967 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1968 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1969 | is a pointer to the matching table entry or null if no table entry | |
1970 | matches. */ | |
1971 | ||
1972 | static struct table_entry * | |
1973 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1974 | struct table_entry *table; | |
1975 | int dim; | |
1976 | struct font_name *font; | |
1977 | int field_index; | |
1978 | { | |
1979 | /* Function split_font_name converts fields to lower-case, so there | |
1980 | is no need to use xstrlwr or xstricmp here. */ | |
1981 | char *s = font->fields[field_index]; | |
1982 | int low, mid, high, cmp; | |
1983 | ||
1984 | low = 0; | |
1985 | high = dim - 1; | |
1986 | ||
1987 | while (low <= high) | |
1988 | { | |
1989 | mid = (low + high) / 2; | |
1990 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1991 | |
82641697 GM |
1992 | if (cmp < 0) |
1993 | low = mid + 1; | |
1994 | else if (cmp > 0) | |
1995 | high = mid - 1; | |
1996 | else | |
1997 | return table + mid; | |
1998 | } | |
1999 | ||
2000 | return NULL; | |
2001 | } | |
2002 | ||
2003 | ||
2004 | /* Return a numeric representation for font name field | |
2005 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2006 | has DIM entries. Value is the numeric value found or DFLT if no | |
2007 | table entry matches. This function is used to translate weight, | |
2008 | slant, and swidth names of XLFD font names to numeric values. */ | |
2009 | ||
2010 | static INLINE int | |
2011 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
2012 | struct table_entry *table; | |
2013 | int dim; | |
2014 | struct font_name *font; | |
2015 | int field_index; | |
2016 | int dflt; | |
2017 | { | |
2018 | struct table_entry *p; | |
2019 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2020 | return p ? p->numeric : dflt; | |
2021 | } | |
2022 | ||
2023 | ||
2024 | /* Return a symbolic representation for font name field | |
2025 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
2026 | has DIM entries. Value is the symbolic value found or DFLT if no | |
2027 | table entry matches. This function is used to translate weight, | |
2028 | slant, and swidth names of XLFD font names to symbols. */ | |
2029 | ||
2030 | static INLINE Lisp_Object | |
2031 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
2032 | struct table_entry *table; | |
2033 | int dim; | |
2034 | struct font_name *font; | |
2035 | int field_index; | |
6fc556fd | 2036 | Lisp_Object dflt; |
82641697 GM |
2037 | { |
2038 | struct table_entry *p; | |
2039 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
2040 | return p ? *p->symbol : dflt; | |
2041 | } | |
2042 | ||
2043 | ||
2044 | /* Return a numeric value for the slant of the font given by FONT. */ | |
2045 | ||
2046 | static INLINE int | |
2047 | xlfd_numeric_slant (font) | |
2048 | struct font_name *font; | |
2049 | { | |
2050 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
2051 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
2052 | } | |
2053 | ||
2054 | ||
2055 | /* Return a symbol representing the weight of the font given by FONT. */ | |
2056 | ||
2057 | static INLINE Lisp_Object | |
2058 | xlfd_symbolic_slant (font) | |
2059 | struct font_name *font; | |
2060 | { | |
2061 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
2062 | font, XLFD_SLANT, Qnormal); | |
2063 | } | |
2064 | ||
2065 | ||
2066 | /* Return a numeric value for the weight of the font given by FONT. */ | |
2067 | ||
2068 | static INLINE int | |
2069 | xlfd_numeric_weight (font) | |
2070 | struct font_name *font; | |
2071 | { | |
2072 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
2073 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
2074 | } | |
2075 | ||
2076 | ||
2077 | /* Return a symbol representing the slant of the font given by FONT. */ | |
2078 | ||
2079 | static INLINE Lisp_Object | |
2080 | xlfd_symbolic_weight (font) | |
2081 | struct font_name *font; | |
2082 | { | |
2083 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
2084 | font, XLFD_WEIGHT, Qnormal); | |
2085 | } | |
2086 | ||
2087 | ||
2088 | /* Return a numeric value for the swidth of the font whose XLFD font | |
2089 | name fields are found in FONT. */ | |
2090 | ||
2091 | static INLINE int | |
2092 | xlfd_numeric_swidth (font) | |
2093 | struct font_name *font; | |
2094 | { | |
2095 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
2096 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
2097 | } | |
2098 | ||
2099 | ||
2100 | /* Return a symbolic value for the swidth of FONT. */ | |
2101 | ||
2102 | static INLINE Lisp_Object | |
2103 | xlfd_symbolic_swidth (font) | |
2104 | struct font_name *font; | |
2105 | { | |
2106 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
2107 | font, XLFD_SWIDTH, Qnormal); | |
2108 | } | |
178c5d9c | 2109 | |
82641697 GM |
2110 | |
2111 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
2112 | entries. Value is a pointer to the matching table entry or null if | |
2113 | no element of TABLE contains SYMBOL. */ | |
2114 | ||
2115 | static struct table_entry * | |
2116 | face_value (table, dim, symbol) | |
2117 | struct table_entry *table; | |
2118 | int dim; | |
2119 | Lisp_Object symbol; | |
2120 | { | |
2121 | int i; | |
2122 | ||
2123 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 2124 | |
82641697 GM |
2125 | for (i = 0; i < dim; ++i) |
2126 | if (EQ (*table[i].symbol, symbol)) | |
2127 | break; | |
2128 | ||
2129 | return i < dim ? table + i : NULL; | |
2130 | } | |
2131 | ||
2132 | ||
2133 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
2134 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
2135 | ||
2136 | static INLINE int | |
2137 | face_numeric_value (table, dim, symbol) | |
2138 | struct table_entry *table; | |
2139 | int dim; | |
2140 | Lisp_Object symbol; | |
2141 | { | |
2142 | struct table_entry *p = face_value (table, dim, symbol); | |
2143 | return p ? p->numeric : -1; | |
2144 | } | |
2145 | ||
2146 | ||
2147 | /* Return a numeric value representing the weight specified by Lisp | |
2148 | symbol WEIGHT. Value is one of the enumerators of enum | |
2149 | xlfd_weight. */ | |
2150 | ||
2151 | static INLINE int | |
2152 | face_numeric_weight (weight) | |
2153 | Lisp_Object weight; | |
2154 | { | |
2155 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2156 | } | |
2157 | ||
2158 | ||
2159 | /* Return a numeric value representing the slant specified by Lisp | |
2160 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2161 | ||
2162 | static INLINE int | |
2163 | face_numeric_slant (slant) | |
2164 | Lisp_Object slant; | |
2165 | { | |
2166 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2167 | } | |
2168 | ||
2169 | ||
2170 | /* Return a numeric value representing the swidth specified by Lisp | |
2171 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2172 | ||
2173 | static int | |
2174 | face_numeric_swidth (width) | |
2175 | Lisp_Object width; | |
2176 | { | |
2177 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2178 | } | |
2179 | ||
2180 | ||
c3cee013 | 2181 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2182 | |
2183 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2184 | ||
2185 | static INLINE int | |
2186 | xlfd_fixed_p (font) | |
2187 | struct font_name *font; | |
2188 | { | |
2189 | /* Function split_font_name converts fields to lower-case, so there | |
2190 | is no need to use tolower here. */ | |
2191 | return *font->fields[XLFD_SPACING] != 'p'; | |
2192 | } | |
2193 | ||
2194 | ||
2195 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2196 | ||
2197 | The actual height of the font when displayed on F depends on the | |
2198 | resolution of both the font and frame. For example, a 10pt font | |
2199 | designed for a 100dpi display will display larger than 10pt on a | |
2200 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2201 | display one is using. For example, some intlfonts are available in | |
2202 | 72dpi versions, only.) | |
2203 | ||
2204 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2205 | be determined. */ | |
2206 | ||
2207 | static INLINE int | |
2208 | xlfd_point_size (f, font) | |
2209 | struct frame *f; | |
2210 | struct font_name *font; | |
2211 | { | |
2212 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
933b0249 GM |
2213 | char *pixel_field = font->fields[XLFD_PIXEL_SIZE]; |
2214 | double pixel; | |
82641697 GM |
2215 | int real_pt; |
2216 | ||
933b0249 GM |
2217 | if (*pixel_field == '[') |
2218 | { | |
2219 | /* The pixel size field is `[A B C D]' which specifies | |
2220 | a transformation matrix. | |
2221 | ||
2222 | A B 0 | |
2223 | C D 0 | |
2224 | 0 0 1 | |
2225 | ||
2226 | by which all glyphs of the font are transformed. The spec | |
2227 | says that s scalar value N for the pixel size is equivalent | |
2228 | to A = N * resx/resy, B = C = 0, D = N. */ | |
2229 | char *start = pixel_field + 1, *end; | |
2230 | double matrix[4]; | |
2231 | int i; | |
2232 | ||
2233 | for (i = 0; i < 4; ++i) | |
2234 | { | |
2235 | matrix[i] = strtod (start, &end); | |
2236 | start = end; | |
2237 | } | |
2238 | ||
7eb4b061 | 2239 | pixel = matrix[3]; |
933b0249 GM |
2240 | } |
2241 | else | |
2242 | pixel = atoi (pixel_field); | |
177c0ea7 | 2243 | |
933b0249 | 2244 | if (pixel == 0) |
82641697 GM |
2245 | real_pt = 0; |
2246 | else | |
933b0249 | 2247 | real_pt = PT_PER_INCH * 10.0 * pixel / resy + 0.5; |
82641697 GM |
2248 | |
2249 | return real_pt; | |
2250 | } | |
2251 | ||
2252 | ||
39506348 KH |
2253 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2254 | of frame F. This function is used to guess a point size of font | |
2255 | when only the pixel height of the font is available. */ | |
2256 | ||
2257 | static INLINE int | |
2258 | pixel_point_size (f, pixel) | |
2259 | struct frame *f; | |
2260 | int pixel; | |
2261 | { | |
2262 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2263 | double real_pt; | |
2264 | int int_pt; | |
2265 | ||
c660ce4e GM |
2266 | /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the |
2267 | point size of one dot. */ | |
2268 | real_pt = pixel * PT_PER_INCH / resy; | |
39506348 KH |
2269 | int_pt = real_pt + 0.5; |
2270 | ||
2271 | return int_pt; | |
2272 | } | |
2273 | ||
2274 | ||
f70400f2 KH |
2275 | /* Return a rescaling ratio of a font of NAME. */ |
2276 | ||
2277 | static double | |
f0d62075 DL |
2278 | font_rescale_ratio (name) |
2279 | char *name; | |
f70400f2 | 2280 | { |
2d176448 | 2281 | Lisp_Object tail, elt; |
f70400f2 KH |
2282 | |
2283 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2284 | { | |
2285 | elt = XCAR (tail); | |
2286 | if (STRINGP (XCAR (elt)) && FLOATP (XCDR (elt)) | |
2287 | && fast_c_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2288 | return XFLOAT_DATA (XCDR (elt)); | |
2289 | } | |
2290 | return 1.0; | |
2291 | } | |
2292 | ||
2293 | ||
82641697 GM |
2294 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2295 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2296 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2297 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2298 | zero if the font name doesn't have the format we expect. The | |
2299 | expected format is a font name that starts with a `-' and has | |
933b0249 | 2300 | XLFD_LAST fields separated by `-'. */ |
82641697 GM |
2301 | |
2302 | static int | |
2303 | split_font_name (f, font, numeric_p) | |
2304 | struct frame *f; | |
2305 | struct font_name *font; | |
2306 | int numeric_p; | |
2307 | { | |
2308 | int i = 0; | |
2309 | int success_p; | |
f70400f2 KH |
2310 | double rescale_ratio; |
2311 | ||
2312 | if (numeric_p) | |
2313 | /* This must be done before splitting the font name. */ | |
2314 | rescale_ratio = font_rescale_ratio (font->name); | |
82641697 GM |
2315 | |
2316 | if (*font->name == '-') | |
2317 | { | |
2318 | char *p = xstrlwr (font->name) + 1; | |
2319 | ||
7b16a6bf | 2320 | while (i < XLFD_LAST) |
82641697 GM |
2321 | { |
2322 | font->fields[i] = p; | |
7b16a6bf | 2323 | ++i; |
933b0249 GM |
2324 | |
2325 | /* Pixel and point size may be of the form `[....]'. For | |
2326 | BNF, see XLFD spec, chapter 4. Negative values are | |
2327 | indicated by tilde characters which we replace with | |
2328 | `-' characters, here. */ | |
2329 | if (*p == '[' | |
d5188d8c GM |
2330 | && (i - 1 == XLFD_PIXEL_SIZE |
2331 | || i - 1 == XLFD_POINT_SIZE)) | |
933b0249 GM |
2332 | { |
2333 | char *start, *end; | |
2334 | int j; | |
177c0ea7 | 2335 | |
933b0249 GM |
2336 | for (++p; *p && *p != ']'; ++p) |
2337 | if (*p == '~') | |
2338 | *p = '-'; | |
2339 | ||
2340 | /* Check that the matrix contains 4 floating point | |
2341 | numbers. */ | |
3849cbf4 | 2342 | for (j = 0, start = font->fields[i - 1] + 1; |
933b0249 GM |
2343 | j < 4; |
2344 | ++j, start = end) | |
2345 | if (strtod (start, &end) == 0 && start == end) | |
2346 | break; | |
2347 | ||
2348 | if (j < 4) | |
2349 | break; | |
2350 | } | |
178c5d9c | 2351 | |
82641697 GM |
2352 | while (*p && *p != '-') |
2353 | ++p; | |
178c5d9c | 2354 | |
82641697 GM |
2355 | if (*p != '-') |
2356 | break; | |
178c5d9c | 2357 | |
82641697 GM |
2358 | *p++ = 0; |
2359 | } | |
2360 | } | |
2361 | ||
2362 | success_p = i == XLFD_LAST; | |
2363 | ||
2364 | /* If requested, and font name was in the expected format, | |
2365 | compute numeric values for some fields. */ | |
2366 | if (numeric_p && success_p) | |
2367 | { | |
2368 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2369 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2370 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2371 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2372 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
a08332c0 | 2373 | font->numeric[XLFD_AVGWIDTH] = atoi (font->fields[XLFD_AVGWIDTH]); |
f70400f2 | 2374 | font->rescale_ratio = rescale_ratio; |
82641697 GM |
2375 | } |
2376 | ||
8e1b21a7 KH |
2377 | /* Initialize it to zero. It will be overridden by font_list while |
2378 | trying alternate registries. */ | |
2379 | font->registry_priority = 0; | |
2380 | ||
82641697 GM |
2381 | return success_p; |
2382 | } | |
2383 | ||
2384 | ||
2385 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2386 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2387 | |
82641697 GM |
2388 | static char * |
2389 | build_font_name (font) | |
2390 | struct font_name *font; | |
2391 | { | |
2392 | int i; | |
2393 | int size = 100; | |
2394 | char *font_name = (char *) xmalloc (size); | |
2395 | int total_length = 0; | |
2396 | ||
2397 | for (i = 0; i < XLFD_LAST; ++i) | |
2398 | { | |
2399 | /* Add 1 because of the leading `-'. */ | |
2400 | int len = strlen (font->fields[i]) + 1; | |
2401 | ||
2402 | /* Reallocate font_name if necessary. Add 1 for the final | |
2403 | NUL-byte. */ | |
2404 | if (total_length + len + 1 >= size) | |
2405 | { | |
2406 | int new_size = max (2 * size, size + len + 1); | |
2407 | int sz = new_size * sizeof *font_name; | |
2408 | font_name = (char *) xrealloc (font_name, sz); | |
2409 | size = new_size; | |
2410 | } | |
2411 | ||
2412 | font_name[total_length] = '-'; | |
2413 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2414 | total_length += len; | |
2415 | } | |
2416 | ||
2417 | font_name[total_length] = 0; | |
2418 | return font_name; | |
2419 | } | |
2420 | ||
2421 | ||
2422 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2423 | itself and all `name' fields in its elements. */ | |
2424 | ||
2425 | static INLINE void | |
2426 | free_font_names (fonts, n) | |
2427 | struct font_name *fonts; | |
2428 | int n; | |
2429 | { | |
2430 | while (n) | |
2431 | xfree (fonts[--n].name); | |
2432 | xfree (fonts); | |
2433 | } | |
2434 | ||
2435 | ||
2436 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2437 | elements using qsort and comparison function CMPFN. F is the frame | |
2438 | on which the fonts will be used. The global variable font_frame | |
2439 | is temporarily set to F to make it available in CMPFN. */ | |
2440 | ||
2441 | static INLINE void | |
2442 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2443 | struct frame *f; | |
2444 | struct font_name *fonts; | |
2445 | int nfonts; | |
2446 | int (*cmpfn) P_ ((const void *, const void *)); | |
2447 | { | |
2448 | font_frame = f; | |
2449 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2450 | font_frame = NULL; | |
2451 | } | |
2452 | ||
2453 | ||
2454 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2455 | display in x_display_list. FONTS is a pointer to a vector of | |
2456 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2457 | alternative patterns from Valternate_fontname_alist if no fonts are | |
702a1e8e | 2458 | found matching PATTERN. |
82641697 GM |
2459 | |
2460 | For all fonts found, set FONTS[i].name to the name of the font, | |
2461 | allocated via xmalloc, and split font names into fields. Ignore | |
a86110a8 | 2462 | fonts that we can't parse. Value is the number of fonts found. */ |
82641697 GM |
2463 | |
2464 | static int | |
ee5be7c3 | 2465 | x_face_list_fonts (f, pattern, pfonts, nfonts, try_alternatives_p) |
82641697 GM |
2466 | struct frame *f; |
2467 | char *pattern; | |
ee5be7c3 | 2468 | struct font_name **pfonts; |
82641697 | 2469 | int nfonts, try_alternatives_p; |
82641697 | 2470 | { |
702a1e8e | 2471 | int n, nignored; |
82641697 | 2472 | |
c3cee013 JR |
2473 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be |
2474 | better to do it the other way around. */ | |
2475 | Lisp_Object lfonts; | |
2476 | Lisp_Object lpattern, tem; | |
ee5be7c3 JD |
2477 | struct font_name *fonts = 0; |
2478 | int num_fonts = nfonts; | |
c3cee013 | 2479 | |
ee5be7c3 | 2480 | *pfonts = 0; |
c3cee013 JR |
2481 | lpattern = build_string (pattern); |
2482 | ||
2483 | /* Get the list of fonts matching PATTERN. */ | |
1a578e9b | 2484 | #ifdef WINDOWSNT |
a86110a8 | 2485 | BLOCK_INPUT; |
c3cee013 | 2486 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); |
a86110a8 | 2487 | UNBLOCK_INPUT; |
d26d6fd9 | 2488 | #else |
702a1e8e | 2489 | lfonts = x_list_fonts (f, lpattern, -1, nfonts); |
1a578e9b | 2490 | #endif |
c3cee013 | 2491 | |
ee5be7c3 | 2492 | if (nfonts < 0 && CONSP (lfonts)) |
2b47dacc | 2493 | num_fonts = XFASTINT (Flength (lfonts)); |
2d176448 | 2494 | |
d26d6fd9 GM |
2495 | /* Make a copy of the font names we got from X, and |
2496 | split them into fields. */ | |
702a1e8e | 2497 | n = nignored = 0; |
ee5be7c3 | 2498 | for (tem = lfonts; CONSP (tem) && n < num_fonts; tem = XCDR (tem)) |
c3cee013 | 2499 | { |
d26d6fd9 | 2500 | Lisp_Object elt, tail; |
53c208f6 | 2501 | const char *name = SDATA (XCAR (tem)); |
82641697 | 2502 | |
702a1e8e | 2503 | /* Ignore fonts matching a pattern from face-ignored-fonts. */ |
d26d6fd9 | 2504 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) |
82641697 | 2505 | { |
d26d6fd9 GM |
2506 | elt = XCAR (tail); |
2507 | if (STRINGP (elt) | |
2508 | && fast_c_string_match_ignore_case (elt, name) >= 0) | |
2509 | break; | |
2510 | } | |
2511 | if (!NILP (tail)) | |
702a1e8e GM |
2512 | { |
2513 | ++nignored; | |
2514 | continue; | |
2515 | } | |
c824bfbc | 2516 | |
ee5be7c3 JD |
2517 | if (! fonts) |
2518 | { | |
2519 | *pfonts = (struct font_name *) xmalloc (num_fonts * sizeof **pfonts); | |
2520 | fonts = *pfonts; | |
2521 | } | |
2522 | ||
d26d6fd9 GM |
2523 | /* Make a copy of the font name. */ |
2524 | fonts[n].name = xstrdup (name); | |
82641697 | 2525 | |
702a1e8e | 2526 | if (split_font_name (f, fonts + n, 1)) |
d26d6fd9 | 2527 | { |
702a1e8e GM |
2528 | if (font_scalable_p (fonts + n) |
2529 | && !may_use_scalable_font_p (name)) | |
2530 | { | |
2531 | ++nignored; | |
2532 | xfree (fonts[n].name); | |
2533 | } | |
82641697 | 2534 | else |
d26d6fd9 | 2535 | ++n; |
82641697 | 2536 | } |
d26d6fd9 | 2537 | else |
702a1e8e GM |
2538 | xfree (fonts[n].name); |
2539 | } | |
2540 | ||
82641697 GM |
2541 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ |
2542 | if (n == 0 && try_alternatives_p) | |
2543 | { | |
2544 | Lisp_Object list = Valternate_fontname_alist; | |
2545 | ||
72ecb43c JD |
2546 | if (*pfonts) |
2547 | { | |
2548 | xfree (*pfonts); | |
2549 | *pfonts = 0; | |
2550 | } | |
2551 | ||
82641697 GM |
2552 | while (CONSP (list)) |
2553 | { | |
2554 | Lisp_Object entry = XCAR (list); | |
2555 | if (CONSP (entry) | |
2556 | && STRINGP (XCAR (entry)) | |
d5db4077 | 2557 | && strcmp (SDATA (XCAR (entry)), pattern) == 0) |
82641697 GM |
2558 | break; |
2559 | list = XCDR (list); | |
2560 | } | |
2561 | ||
2562 | if (CONSP (list)) | |
2563 | { | |
2564 | Lisp_Object patterns = XCAR (list); | |
2565 | Lisp_Object name; | |
178c5d9c | 2566 | |
82641697 GM |
2567 | while (CONSP (patterns) |
2568 | /* If list is screwed up, give up. */ | |
2569 | && (name = XCAR (patterns), | |
2570 | STRINGP (name)) | |
2571 | /* Ignore patterns equal to PATTERN because we tried that | |
2572 | already with no success. */ | |
d5db4077 KR |
2573 | && (strcmp (SDATA (name), pattern) == 0 |
2574 | || (n = x_face_list_fonts (f, SDATA (name), | |
ee5be7c3 | 2575 | pfonts, nfonts, 0), |
82641697 GM |
2576 | n == 0))) |
2577 | patterns = XCDR (patterns); | |
2578 | } | |
2579 | } | |
178c5d9c | 2580 | |
82641697 GM |
2581 | return n; |
2582 | } | |
178c5d9c | 2583 | |
82641697 | 2584 | |
b64c9a04 KH |
2585 | /* Check if a font matching pattern_offset_t on frame F is available |
2586 | or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case, | |
2587 | a font name pattern is generated from FAMILY and REGISTRY. */ | |
2588 | ||
2589 | int | |
2590 | face_font_available_p (f, pattern) | |
2591 | struct frame *f; | |
2592 | Lisp_Object pattern; | |
2593 | { | |
2594 | Lisp_Object fonts; | |
2595 | ||
2596 | if (! STRINGP (pattern)) | |
2597 | { | |
2598 | Lisp_Object family, registry; | |
2599 | char *family_str, *registry_str, *pattern_str; | |
2600 | ||
2601 | CHECK_CONS (pattern); | |
2602 | family = XCAR (pattern); | |
2603 | if (NILP (family)) | |
2604 | family_str = "*"; | |
2605 | else | |
2606 | { | |
2607 | CHECK_STRING (family); | |
2608 | family_str = (char *) SDATA (family); | |
2609 | } | |
2610 | registry = XCDR (pattern); | |
2611 | if (NILP (registry)) | |
2612 | registry_str = "*"; | |
2613 | else | |
2614 | { | |
2615 | CHECK_STRING (registry); | |
2616 | registry_str = (char *) SDATA (registry); | |
2617 | } | |
2618 | ||
2619 | pattern_str = (char *) alloca (strlen (family_str) | |
2620 | + strlen (registry_str) | |
2621 | + 10); | |
2622 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2623 | strcat (pattern_str, family_str); | |
2624 | strcat (pattern_str, "-*-"); | |
2625 | strcat (pattern_str, registry_str); | |
2626 | if (!index (registry_str, '-')) | |
2627 | { | |
2628 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2629 | strcat (pattern_str, "-*"); | |
2630 | else | |
2631 | strcat (pattern_str, "*-*"); | |
2632 | } | |
2633 | pattern = build_string (pattern_str); | |
2634 | } | |
2635 | ||
2636 | /* Get the list of fonts matching PATTERN. */ | |
2637 | #ifdef WINDOWSNT | |
2638 | BLOCK_INPUT; | |
2639 | fonts = w32_list_fonts (f, pattern, 0, 1); | |
2640 | UNBLOCK_INPUT; | |
2641 | #else | |
2642 | fonts = x_list_fonts (f, pattern, -1, 1); | |
2643 | #endif | |
2644 | return XINT (Flength (fonts)); | |
2645 | } | |
2646 | ||
2647 | ||
82641697 GM |
2648 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts |
2649 | using comparison function CMPFN. Value is the number of fonts | |
2650 | found. If value is non-zero, *FONTS is set to a vector of | |
2651 | font_name structures allocated from the heap containing matching | |
2652 | fonts. Each element of *FONTS contains a name member that is also | |
2653 | allocated from the heap. Font names in these structures are split | |
2654 | into fields. Use free_font_names to free such an array. */ | |
2655 | ||
2656 | static int | |
2657 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2658 | struct frame *f; | |
2659 | char *pattern; | |
2660 | int (*cmpfn) P_ ((const void *, const void *)); | |
2661 | struct font_name **fonts; | |
2662 | { | |
2663 | int nfonts; | |
178c5d9c | 2664 | |
82641697 | 2665 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c | 2666 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
ee5be7c3 JD |
2667 | if (INTEGERP (Vfont_list_limit)) |
2668 | nfonts = XINT (Vfont_list_limit); | |
178c5d9c | 2669 | |
ee5be7c3 JD |
2670 | *fonts = NULL; |
2671 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1); | |
178c5d9c SS |
2672 | |
2673 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2674 | fonts were found, make sure to set *FONTS to null. */ |
2675 | if (nfonts) | |
2676 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
ee5be7c3 | 2677 | else if (*fonts) |
82641697 GM |
2678 | { |
2679 | xfree (*fonts); | |
2680 | *fonts = NULL; | |
2681 | } | |
2682 | ||
2683 | return nfonts; | |
2684 | } | |
2685 | ||
2686 | ||
2687 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2688 | strcmp. Sort order is given by the global variable | |
2689 | font_sort_order. Font names are sorted so that, everything else | |
2690 | being equal, fonts with a resolution closer to that of the frame on | |
2691 | which they are used are listed first. The global variable | |
2692 | font_frame is the frame on which we operate. */ | |
2693 | ||
2694 | static int | |
2695 | cmp_font_names (a, b) | |
2696 | const void *a, *b; | |
2697 | { | |
2698 | struct font_name *x = (struct font_name *) a; | |
2699 | struct font_name *y = (struct font_name *) b; | |
2700 | int cmp; | |
2701 | ||
2702 | /* All strings have been converted to lower-case by split_font_name, | |
2703 | so we can use strcmp here. */ | |
2704 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2705 | if (cmp == 0) | |
2706 | { | |
2707 | int i; | |
178c5d9c | 2708 | |
82641697 GM |
2709 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2710 | { | |
2711 | int j = font_sort_order[i]; | |
2712 | cmp = x->numeric[j] - y->numeric[j]; | |
2713 | } | |
2714 | ||
2715 | if (cmp == 0) | |
2716 | { | |
2717 | /* Everything else being equal, we prefer fonts with an | |
2718 | y-resolution closer to that of the frame. */ | |
2719 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2720 | int x_resy = x->numeric[XLFD_RESY]; | |
2721 | int y_resy = y->numeric[XLFD_RESY]; | |
2722 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2723 | } | |
2724 | } | |
2725 | ||
2726 | return cmp; | |
2727 | } | |
2728 | ||
2729 | ||
2730 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2731 | is non-nil list fonts matching that pattern. Otherwise, if |
2732 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2733 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2734 | structures allocated from the heap containing the fonts found. | |
2735 | Value is the number of fonts found. */ | |
82641697 GM |
2736 | |
2737 | static int | |
32fcc231 | 2738 | font_list_1 (f, pattern, family, registry, fonts) |
82641697 | 2739 | struct frame *f; |
39506348 | 2740 | Lisp_Object pattern, family, registry; |
82641697 GM |
2741 | struct font_name **fonts; |
2742 | { | |
39506348 KH |
2743 | char *pattern_str, *family_str, *registry_str; |
2744 | ||
2745 | if (NILP (pattern)) | |
82641697 | 2746 | { |
d5db4077 KR |
2747 | family_str = (NILP (family) ? "*" : (char *) SDATA (family)); |
2748 | registry_str = (NILP (registry) ? "*" : (char *) SDATA (registry)); | |
178c5d9c | 2749 | |
39506348 | 2750 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2751 | + strlen (registry_str) |
2752 | + 10); | |
2753 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2754 | strcat (pattern_str, family_str); | |
2755 | strcat (pattern_str, "-*-"); | |
2756 | strcat (pattern_str, registry_str); | |
2757 | if (!index (registry_str, '-')) | |
2758 | { | |
2759 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2760 | strcat (pattern_str, "-*"); | |
2761 | else | |
2762 | strcat (pattern_str, "*-*"); | |
2763 | } | |
82641697 | 2764 | } |
39506348 | 2765 | else |
d5db4077 | 2766 | pattern_str = (char *) SDATA (pattern); |
178c5d9c | 2767 | |
39506348 | 2768 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2769 | } |
2770 | ||
2771 | ||
8e1b21a7 KH |
2772 | /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2 |
2773 | contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a | |
2774 | pointer to a newly allocated font list. FONTS1 and FONTS2 are | |
2775 | freed. */ | |
2776 | ||
2777 | static struct font_name * | |
2778 | concat_font_list (fonts1, nfonts1, fonts2, nfonts2) | |
2779 | struct font_name *fonts1, *fonts2; | |
2780 | int nfonts1, nfonts2; | |
2781 | { | |
2782 | int new_nfonts = nfonts1 + nfonts2; | |
2783 | struct font_name *new_fonts; | |
2784 | ||
2785 | new_fonts = (struct font_name *) xmalloc (sizeof *new_fonts * new_nfonts); | |
2786 | bcopy (fonts1, new_fonts, sizeof *new_fonts * nfonts1); | |
2787 | bcopy (fonts2, new_fonts + nfonts1, sizeof *new_fonts * nfonts2); | |
2788 | xfree (fonts1); | |
2789 | xfree (fonts2); | |
2790 | return new_fonts; | |
2791 | } | |
2792 | ||
2793 | ||
32fcc231 GM |
2794 | /* Get a sorted list of fonts of family FAMILY on frame F. |
2795 | ||
2796 | If PATTERN is non-nil list fonts matching that pattern. | |
2797 | ||
8e1b21a7 KH |
2798 | If REGISTRY is non-nil, return fonts with that registry and the |
2799 | alternative registries from Vface_alternative_font_registry_alist. | |
177c0ea7 | 2800 | |
32fcc231 GM |
2801 | If REGISTRY is nil return fonts of any registry. |
2802 | ||
2803 | Set *FONTS to a vector of font_name structures allocated from the | |
2804 | heap containing the fonts found. Value is the number of fonts | |
2805 | found. */ | |
2806 | ||
2807 | static int | |
2808 | font_list (f, pattern, family, registry, fonts) | |
2809 | struct frame *f; | |
2810 | Lisp_Object pattern, family, registry; | |
2811 | struct font_name **fonts; | |
2812 | { | |
2813 | int nfonts = font_list_1 (f, pattern, family, registry, fonts); | |
177c0ea7 | 2814 | |
8e1b21a7 | 2815 | if (!NILP (registry) |
32fcc231 GM |
2816 | && CONSP (Vface_alternative_font_registry_alist)) |
2817 | { | |
2818 | Lisp_Object alter; | |
2819 | ||
2820 | alter = Fassoc (registry, Vface_alternative_font_registry_alist); | |
2821 | if (CONSP (alter)) | |
2822 | { | |
8e1b21a7 KH |
2823 | int reg_prio, i; |
2824 | ||
2825 | for (alter = XCDR (alter), reg_prio = 1; | |
2826 | CONSP (alter); | |
2827 | alter = XCDR (alter), reg_prio++) | |
32fcc231 | 2828 | if (STRINGP (XCAR (alter))) |
8e1b21a7 KH |
2829 | { |
2830 | int nfonts2; | |
2831 | struct font_name *fonts2; | |
2832 | ||
2833 | nfonts2 = font_list_1 (f, pattern, family, XCAR (alter), | |
2834 | &fonts2); | |
2835 | for (i = 0; i < nfonts2; i++) | |
2836 | fonts2[i].registry_priority = reg_prio; | |
2837 | *fonts = (nfonts > 0 | |
2838 | ? concat_font_list (*fonts, nfonts, fonts2, nfonts2) | |
2839 | : fonts2); | |
2840 | nfonts += nfonts2; | |
2841 | } | |
32fcc231 GM |
2842 | } |
2843 | } | |
2844 | ||
2845 | return nfonts; | |
2846 | } | |
2847 | ||
2848 | ||
82641697 | 2849 | /* Remove elements from LIST whose cars are `equal'. Called from |
92610620 | 2850 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2851 | entries. */ |
2852 | ||
2853 | static void | |
2854 | remove_duplicates (list) | |
2855 | Lisp_Object list; | |
2856 | { | |
2857 | Lisp_Object tail = list; | |
178c5d9c | 2858 | |
82641697 GM |
2859 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2860 | { | |
2861 | Lisp_Object next = XCDR (tail); | |
2862 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
f3fbd155 | 2863 | XSETCDR (tail, XCDR (next)); |
82641697 GM |
2864 | else |
2865 | tail = XCDR (tail); | |
2866 | } | |
2867 | } | |
2868 | ||
2869 | ||
92610620 | 2870 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
7ee72033 | 2871 | doc: /* Return a list of available fonts of family FAMILY on FRAME. |
228299fa GM |
2872 | If FAMILY is omitted or nil, list all families. |
2873 | Otherwise, FAMILY must be a string, possibly containing wildcards | |
2874 | `?' and `*'. | |
2875 | If FRAME is omitted or nil, use the selected frame. | |
2876 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT | |
2877 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING]. | |
2878 | FAMILY is the font family name. POINT-SIZE is the size of the | |
2879 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the | |
2880 | width, weight and slant of the font. These symbols are the same as for | |
2881 | face attributes. FIXED-P is non-nil if the font is fixed-pitch. | |
2882 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string | |
2883 | giving the registry and encoding of the font. | |
2884 | The result list is sorted according to the current setting of | |
7ee72033 MB |
2885 | the face font sort order. */) |
2886 | (family, frame) | |
82641697 GM |
2887 | Lisp_Object family, frame; |
2888 | { | |
2889 | struct frame *f = check_x_frame (frame); | |
2890 | struct font_name *fonts; | |
2891 | int i, nfonts; | |
2892 | Lisp_Object result; | |
2893 | struct gcpro gcpro1; | |
82641697 | 2894 | |
39506348 | 2895 | if (!NILP (family)) |
b7826503 | 2896 | CHECK_STRING (family); |
178c5d9c | 2897 | |
82641697 GM |
2898 | result = Qnil; |
2899 | GCPRO1 (result); | |
39506348 | 2900 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2901 | for (i = nfonts - 1; i >= 0; --i) |
2902 | { | |
057df17c GM |
2903 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2904 | char *tem; | |
82641697 | 2905 | |
82641697 GM |
2906 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2907 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2908 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2909 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2910 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2911 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2912 | tem = build_font_name (fonts + i); |
2913 | ASET (v, 6, build_string (tem)); | |
2914 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2915 | fonts[i].fields[XLFD_ENCODING]); | |
2916 | ASET (v, 7, build_string (tem)); | |
2917 | xfree (tem); | |
178c5d9c | 2918 | |
82641697 | 2919 | result = Fcons (v, result); |
82641697 GM |
2920 | } |
2921 | ||
2922 | remove_duplicates (result); | |
2923 | free_font_names (fonts, nfonts); | |
2924 | UNGCPRO; | |
2925 | return result; | |
2926 | } | |
2927 | ||
2928 | ||
2929 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2930 | 0, 1, 0, | |
7ee72033 | 2931 | doc: /* Return a list of available font families on FRAME. |
228299fa GM |
2932 | If FRAME is omitted or nil, use the selected frame. |
2933 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY | |
2934 | is a font family, and FIXED-P is non-nil if fonts of that family | |
7ee72033 MB |
2935 | are fixed-pitch. */) |
2936 | (frame) | |
82641697 GM |
2937 | Lisp_Object frame; |
2938 | { | |
2939 | struct frame *f = check_x_frame (frame); | |
2940 | int nfonts, i; | |
2941 | struct font_name *fonts; | |
2942 | Lisp_Object result; | |
2943 | struct gcpro gcpro1; | |
aed13378 | 2944 | int count = SPECPDL_INDEX (); |
178c5d9c | 2945 | |
ee5be7c3 JD |
2946 | /* Let's consider all fonts. */ |
2947 | specbind (intern ("font-list-limit"), make_number (-1)); | |
2948 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); | |
178c5d9c | 2949 | |
82641697 GM |
2950 | result = Qnil; |
2951 | GCPRO1 (result); | |
2952 | for (i = nfonts - 1; i >= 0; --i) | |
2953 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2954 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2955 | result); | |
2956 | ||
2957 | remove_duplicates (result); | |
2958 | free_font_names (fonts, nfonts); | |
2959 | UNGCPRO; | |
057df17c | 2960 | return unbind_to (count, result); |
82641697 GM |
2961 | } |
2962 | ||
2963 | ||
2964 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
7ee72033 | 2965 | doc: /* Return a list of the names of available fonts matching PATTERN. |
228299fa GM |
2966 | If optional arguments FACE and FRAME are specified, return only fonts |
2967 | the same size as FACE on FRAME. | |
2968 | PATTERN is a string, perhaps with wildcard characters; | |
2969 | the * character matches any substring, and | |
2970 | the ? character matches any single character. | |
2971 | PATTERN is case-insensitive. | |
2972 | FACE is a face name--a symbol. | |
2973 | ||
2974 | The return value is a list of strings, suitable as arguments to | |
2975 | set-face-font. | |
2976 | ||
2977 | Fonts Emacs can't use may or may not be excluded | |
2978 | even if they match PATTERN and FACE. | |
2979 | The optional fourth argument MAXIMUM sets a limit on how many | |
2980 | fonts to match. The first MAXIMUM fonts are reported. | |
2981 | The optional fifth argument WIDTH, if specified, is a number of columns | |
2982 | occupied by a character of a font. In that case, return only fonts | |
7ee72033 MB |
2983 | the WIDTH times as wide as FACE on FRAME. */) |
2984 | (pattern, face, frame, maximum, width) | |
82641697 GM |
2985 | Lisp_Object pattern, face, frame, maximum, width; |
2986 | { | |
2987 | struct frame *f; | |
2988 | int size; | |
2989 | int maxnames; | |
2990 | ||
2991 | check_x (); | |
b7826503 | 2992 | CHECK_STRING (pattern); |
178c5d9c | 2993 | |
82641697 | 2994 | if (NILP (maximum)) |
ee5be7c3 | 2995 | maxnames = -1; |
82641697 GM |
2996 | else |
2997 | { | |
b7826503 | 2998 | CHECK_NATNUM (maximum); |
82641697 GM |
2999 | maxnames = XINT (maximum); |
3000 | } | |
3001 | ||
3002 | if (!NILP (width)) | |
b7826503 | 3003 | CHECK_NUMBER (width); |
82641697 GM |
3004 | |
3005 | /* We can't simply call check_x_frame because this function may be | |
3006 | called before any frame is created. */ | |
3007 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 3008 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
3009 | { |
3010 | /* Perhaps we have not yet created any frame. */ | |
3011 | f = NULL; | |
3012 | face = Qnil; | |
3013 | } | |
3014 | ||
3015 | /* Determine the width standard for comparison with the fonts we find. */ | |
3016 | ||
3017 | if (NILP (face)) | |
3018 | size = 0; | |
3019 | else | |
3020 | { | |
3021 | /* This is of limited utility since it works with character | |
3022 | widths. Keep it for compatibility. --gerd. */ | |
2272e967 | 3023 | int face_id = lookup_named_face (f, face, 0, 0); |
b5de343d GM |
3024 | struct face *face = (face_id < 0 |
3025 | ? NULL | |
3026 | : FACE_FROM_ID (f, face_id)); | |
82641697 | 3027 | |
c623bbd3 KS |
3028 | #ifdef WINDOWSNT |
3029 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
3030 | not maximum as on X. Redefine here. */ | |
3031 | #undef FONT_WIDTH | |
3032 | #define FONT_WIDTH FONT_MAX_WIDTH | |
3033 | #endif | |
3034 | ||
b5de343d | 3035 | if (face && face->font) |
c3cee013 | 3036 | size = FONT_WIDTH (face->font); |
82641697 | 3037 | else |
c623bbd3 | 3038 | size = FONT_WIDTH (FRAME_FONT (f)); /* FRAME_COLUMN_WIDTH (f) */ |
82641697 GM |
3039 | |
3040 | if (!NILP (width)) | |
3041 | size *= XINT (width); | |
3042 | } | |
3043 | ||
3044 | { | |
3045 | Lisp_Object args[2]; | |
3046 | ||
3047 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
3048 | if (f == NULL) | |
3049 | /* We don't have to check fontsets. */ | |
3050 | return args[0]; | |
3051 | args[1] = list_fontsets (f, pattern, size); | |
3052 | return Fnconc (2, args); | |
3053 | } | |
3054 | } | |
3055 | ||
c3cee013 | 3056 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3057 | |
3058 | ||
3059 | \f | |
3060 | /*********************************************************************** | |
3061 | Lisp Faces | |
3062 | ***********************************************************************/ | |
3063 | ||
a08332c0 GM |
3064 | /* Access face attributes of face LFACE, a Lisp vector. */ |
3065 | ||
3066 | #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX) | |
3067 | #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX) | |
3068 | #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX) | |
3069 | #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX) | |
3070 | #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX) | |
3071 | #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX) | |
3072 | #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX) | |
3073 | #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX) | |
3074 | #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX) | |
3075 | #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX) | |
3076 | #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX) | |
3077 | #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX) | |
3078 | #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX) | |
3079 | #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX) | |
3080 | #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX) | |
3081 | #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX) | |
82641697 GM |
3082 | |
3083 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
3084 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
3085 | ||
3086 | #define LFACEP(LFACE) \ | |
3087 | (VECTORP (LFACE) \ | |
3088 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
a08332c0 | 3089 | && EQ (AREF (LFACE, 0), Qface)) |
82641697 | 3090 | |
178c5d9c | 3091 | |
82641697 GM |
3092 | #if GLYPH_DEBUG |
3093 | ||
3094 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
3095 | ||
3096 | static void | |
3097 | check_lface_attrs (attrs) | |
3098 | Lisp_Object *attrs; | |
3099 | { | |
3100 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
3101 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
3102 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
3103 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
a08332c0 GM |
3104 | xassert (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
3105 | || INTEGERP (attrs[LFACE_AVGWIDTH_INDEX])); | |
82641697 | 3106 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) |
2c20458f MB |
3107 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
3108 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
3109 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
3110 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
3111 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
3112 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
3113 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
3114 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
3115 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
3116 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
3117 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
3118 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
3119 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
3120 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
3121 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
3122 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
3123 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
3124 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
3125 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
3126 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
3127 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
3128 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
3129 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
3130 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
3131 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
3132 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
3133 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2c20458f MB |
3134 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
3135 | || NILP (attrs[LFACE_INHERIT_INDEX]) | |
3136 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
3137 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
3138 | #ifdef HAVE_WINDOW_SYSTEM |
3139 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
3140 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 3141 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 3142 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
3143 | || NILP (attrs[LFACE_FONT_INDEX]) |
3144 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
3145 | #endif |
3146 | } | |
3147 | ||
3148 | ||
3149 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
3150 | ||
3151 | static void | |
3152 | check_lface (lface) | |
3153 | Lisp_Object lface; | |
3154 | { | |
3155 | if (!NILP (lface)) | |
3156 | { | |
3157 | xassert (LFACEP (lface)); | |
3158 | check_lface_attrs (XVECTOR (lface)->contents); | |
3159 | } | |
3160 | } | |
3161 | ||
3162 | #else /* GLYPH_DEBUG == 0 */ | |
3163 | ||
3164 | #define check_lface_attrs(attrs) (void) 0 | |
3165 | #define check_lface(lface) (void) 0 | |
3166 | ||
3167 | #endif /* GLYPH_DEBUG == 0 */ | |
3168 | ||
3169 | ||
a0a23346 MB |
3170 | \f |
3171 | /* Face-merge cycle checking. */ | |
3172 | ||
3173 | /* A `named merge point' is simply a point during face-merging where we | |
3174 | look up a face by name. We keep a stack of which named lookups we're | |
3175 | currently processing so that we can easily detect cycles, using a | |
3176 | linked- list of struct named_merge_point structures, typically | |
3177 | allocated on the stack frame of the named lookup functions which are | |
3178 | active (so no consing is required). */ | |
3179 | struct named_merge_point | |
3180 | { | |
3181 | Lisp_Object face_name; | |
3182 | struct named_merge_point *prev; | |
3183 | }; | |
3184 | ||
3185 | ||
3186 | /* If a face merging cycle is detected for FACE_NAME, return 0, | |
3187 | otherwise add NEW_NAMED_MERGE_POINT, which is initialized using | |
6e87ac8f MB |
3188 | FACE_NAME, as the head of the linked list pointed to by |
3189 | NAMED_MERGE_POINTS, and return 1. */ | |
a0a23346 MB |
3190 | |
3191 | static INLINE int | |
3192 | push_named_merge_point (struct named_merge_point *new_named_merge_point, | |
3193 | Lisp_Object face_name, | |
3194 | struct named_merge_point **named_merge_points) | |
3195 | { | |
3196 | struct named_merge_point *prev; | |
3197 | ||
3198 | for (prev = *named_merge_points; prev; prev = prev->prev) | |
3199 | if (EQ (face_name, prev->face_name)) | |
6e87ac8f | 3200 | return 0; |
a0a23346 MB |
3201 | |
3202 | new_named_merge_point->face_name = face_name; | |
3203 | new_named_merge_point->prev = *named_merge_points; | |
3204 | ||
3205 | *named_merge_points = new_named_merge_point; | |
3206 | ||
3207 | return 1; | |
3208 | } | |
3209 | ||
3210 | \f | |
3211 | ||
3212 | ||
39506348 | 3213 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
d1bf13b3 KS |
3214 | to make it a symbol. If FACE_NAME is an alias for another face, |
3215 | return that face's name. | |
3216 | ||
3217 | Return default face in case of errors. */ | |
c7ae3284 GM |
3218 | |
3219 | static Lisp_Object | |
d1bf13b3 | 3220 | resolve_face_name (face_name, signal_p) |
c7ae3284 | 3221 | Lisp_Object face_name; |
d1bf13b3 | 3222 | int signal_p; |
c7ae3284 | 3223 | { |
d1bf13b3 KS |
3224 | Lisp_Object orig_face; |
3225 | Lisp_Object tortoise, hare; | |
178c5d9c | 3226 | |
c7ae3284 | 3227 | if (STRINGP (face_name)) |
d5db4077 | 3228 | face_name = intern (SDATA (face_name)); |
c7ae3284 | 3229 | |
d1bf13b3 KS |
3230 | if (NILP (face_name) || !SYMBOLP (face_name)) |
3231 | return face_name; | |
3232 | ||
3233 | orig_face = face_name; | |
3234 | tortoise = hare = face_name; | |
3235 | ||
3236 | while (1) | |
c7ae3284 | 3237 | { |
d1bf13b3 KS |
3238 | face_name = hare; |
3239 | hare = Fget (hare, Qface_alias); | |
3240 | if (NILP (hare) || !SYMBOLP (hare)) | |
c7ae3284 | 3241 | break; |
d1bf13b3 KS |
3242 | |
3243 | face_name = hare; | |
3244 | hare = Fget (hare, Qface_alias); | |
3245 | if (NILP (hare) || !SYMBOLP (hare)) | |
f3745204 | 3246 | break; |
d1bf13b3 KS |
3247 | |
3248 | tortoise = Fget (tortoise, Qface_alias); | |
3249 | if (EQ (hare, tortoise)) | |
3250 | { | |
3251 | if (signal_p) | |
3252 | Fsignal (Qcircular_list, Fcons (orig_face, Qnil)); | |
3253 | return Qdefault; | |
3254 | } | |
c7ae3284 GM |
3255 | } |
3256 | ||
3257 | return face_name; | |
3258 | } | |
3259 | ||
3260 | ||
82641697 | 3261 | /* Return the face definition of FACE_NAME on frame F. F null means |
45d9f1ef GM |
3262 | return the definition for new frames. FACE_NAME may be a string or |
3263 | a symbol (apparently Emacs 20.2 allowed strings as face names in | |
3264 | face text properties; Ediff uses that). If FACE_NAME is an alias | |
3265 | for another face, return that face's definition. If SIGNAL_P is | |
92610620 GM |
3266 | non-zero, signal an error if FACE_NAME is not a valid face name. |
3267 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
3268 | name. */ | |
82641697 GM |
3269 | |
3270 | static INLINE Lisp_Object | |
3271 | lface_from_face_name (f, face_name, signal_p) | |
3272 | struct frame *f; | |
3273 | Lisp_Object face_name; | |
3274 | int signal_p; | |
3275 | { | |
c7ae3284 | 3276 | Lisp_Object lface; |
82641697 | 3277 | |
d1bf13b3 | 3278 | face_name = resolve_face_name (face_name, signal_p); |
92610620 | 3279 | |
82641697 GM |
3280 | if (f) |
3281 | lface = assq_no_quit (face_name, f->face_alist); | |
3282 | else | |
3283 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
3284 | ||
3285 | if (CONSP (lface)) | |
3286 | lface = XCDR (lface); | |
3287 | else if (signal_p) | |
3288 | signal_error ("Invalid face", face_name); | |
3289 | ||
3290 | check_lface (lface); | |
3291 | return lface; | |
3292 | } | |
3293 | ||
3294 | ||
3295 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
3296 | frame F. Store the resulting attributes in ATTRS which must point | |
3297 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
3298 | is non-zero, signal an error if FACE_NAME does not name a face. | |
3299 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
3300 | ||
3301 | static INLINE int | |
3302 | get_lface_attributes (f, face_name, attrs, signal_p) | |
3303 | struct frame *f; | |
3304 | Lisp_Object face_name; | |
3305 | Lisp_Object *attrs; | |
3306 | int signal_p; | |
3307 | { | |
3308 | Lisp_Object lface; | |
3309 | int success_p; | |
3310 | ||
3311 | lface = lface_from_face_name (f, face_name, signal_p); | |
3312 | if (!NILP (lface)) | |
3313 | { | |
3314 | bcopy (XVECTOR (lface)->contents, attrs, | |
3315 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
3316 | success_p = 1; | |
3317 | } | |
3318 | else | |
3319 | success_p = 0; | |
3320 | ||
3321 | return success_p; | |
3322 | } | |
3323 | ||
3324 | ||
3325 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
3326 | specified, i.e. are non-nil. */ | |
3327 | ||
3328 | static int | |
3329 | lface_fully_specified_p (attrs) | |
3330 | Lisp_Object *attrs; | |
3331 | { | |
3332 | int i; | |
3333 | ||
3334 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 GM |
3335 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX |
3336 | && i != LFACE_AVGWIDTH_INDEX) | |
5202d23d JD |
3337 | if (UNSPECIFIEDP (attrs[i]) |
3338 | #ifdef MAC_OS | |
3339 | /* MAC_TODO: No stipple support on Mac OS yet, this index is | |
3340 | always unspecified. */ | |
3341 | && i != LFACE_STIPPLE_INDEX | |
3342 | #endif | |
3343 | ) | |
6288c62f | 3344 | break; |
82641697 GM |
3345 | |
3346 | return i == LFACE_VECTOR_SIZE; | |
3347 | } | |
3348 | ||
c3cee013 | 3349 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3350 | |
39506348 KH |
3351 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
3352 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
3353 | unspecified attributes of LFACE. The exception is `font' | |
3354 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
3355 | ||
3356 | If FONTNAME is not available on frame F, | |
3357 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
3358 | If the fullname is not in a valid XLFD format, | |
3359 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
3360 | in LFACE and return 1. | |
3361 | Otherwise, return 1. */ | |
178c5d9c | 3362 | |
82641697 | 3363 | static int |
39506348 | 3364 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
3365 | struct frame *f; |
3366 | Lisp_Object lface; | |
39506348 | 3367 | Lisp_Object fontname; |
3221576b | 3368 | int force_p, may_fail_p; |
82641697 GM |
3369 | { |
3370 | struct font_name font; | |
3371 | char *buffer; | |
3372 | int pt; | |
39506348 KH |
3373 | int have_xlfd_p; |
3374 | int fontset; | |
d5db4077 | 3375 | char *font_name = SDATA (fontname); |
39506348 | 3376 | struct font_info *font_info; |
82641697 | 3377 | |
39506348 KH |
3378 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
3379 | fontset = fs_query_fontset (fontname, 0); | |
3380 | if (fontset >= 0) | |
d5db4077 | 3381 | font_name = SDATA (fontset_ascii (fontset)); |
39506348 KH |
3382 | |
3383 | /* Check if FONT_NAME is surely available on the system. Usually | |
3384 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3385 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3386 | caching it now is not futail because we anyway load the font | |
3387 | later. */ | |
3388 | BLOCK_INPUT; | |
3389 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
3390 | UNBLOCK_INPUT; | |
82641697 | 3391 | |
39506348 | 3392 | if (!font_info) |
3221576b GM |
3393 | { |
3394 | if (may_fail_p) | |
3395 | return 0; | |
39506348 | 3396 | abort (); |
3221576b | 3397 | } |
39506348 KH |
3398 | |
3399 | font.name = STRDUPA (font_info->full_name); | |
3400 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3401 | |
82641697 | 3402 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3403 | new frames would never take effect. If we couldn't get a font |
3404 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3405 | |
82641697 GM |
3406 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3407 | { | |
39506348 KH |
3408 | Lisp_Object val; |
3409 | if (have_xlfd_p) | |
3410 | { | |
3411 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3412 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3413 | + 2); | |
3414 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3415 | font.fields[XLFD_FAMILY]); | |
3416 | val = build_string (buffer); | |
3417 | } | |
3418 | else | |
3419 | val = build_string ("*"); | |
3420 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3421 | } |
3422 | ||
3423 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3424 | { | |
39506348 KH |
3425 | if (have_xlfd_p) |
3426 | pt = xlfd_point_size (f, &font); | |
3427 | else | |
3428 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3429 | xassert (pt > 0); |
3430 | LFACE_HEIGHT (lface) = make_number (pt); | |
3431 | } | |
3432 | ||
3433 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3434 | LFACE_SWIDTH (lface) |
3435 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 | 3436 | |
a08332c0 GM |
3437 | if (force_p || UNSPECIFIEDP (LFACE_AVGWIDTH (lface))) |
3438 | LFACE_AVGWIDTH (lface) | |
3439 | = (have_xlfd_p | |
3440 | ? make_number (font.numeric[XLFD_AVGWIDTH]) | |
3441 | : Qunspecified); | |
3442 | ||
82641697 | 3443 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
39506348 KH |
3444 | LFACE_WEIGHT (lface) |
3445 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3446 | |
3447 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3448 | LFACE_SLANT (lface) |
3449 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3450 | |
39506348 | 3451 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3452 | |
82641697 GM |
3453 | return 1; |
3454 | } | |
d12d0a9b | 3455 | |
c3cee013 | 3456 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3457 | |
3458 | ||
2c20458f MB |
3459 | /* Merges the face height FROM with the face height TO, and returns the |
3460 | merged height. If FROM is an invalid height, then INVALID is | |
cdfaafa9 MB |
3461 | returned instead. FROM and TO may be either absolute face heights or |
3462 | `relative' heights; the returned value is always an absolute height | |
3463 | unless both FROM and TO are relative. GCPRO is a lisp value that | |
3464 | will be protected from garbage-collection if this function makes a | |
3465 | call into lisp. */ | |
2c20458f MB |
3466 | |
3467 | Lisp_Object | |
e1e419ec RS |
3468 | merge_face_heights (from, to, invalid) |
3469 | Lisp_Object from, to, invalid; | |
2c20458f | 3470 | { |
cdfaafa9 | 3471 | Lisp_Object result = invalid; |
2c20458f MB |
3472 | |
3473 | if (INTEGERP (from)) | |
cdfaafa9 MB |
3474 | /* FROM is absolute, just use it as is. */ |
3475 | result = from; | |
3476 | else if (FLOATP (from)) | |
3477 | /* FROM is a scale, use it to adjust TO. */ | |
3478 | { | |
3479 | if (INTEGERP (to)) | |
3480 | /* relative X absolute => absolute */ | |
c319cf24 | 3481 | result = make_number ((EMACS_INT)(XFLOAT_DATA (from) * XINT (to))); |
cdfaafa9 MB |
3482 | else if (FLOATP (to)) |
3483 | /* relative X relative => relative */ | |
3484 | result = make_float (XFLOAT_DATA (from) * XFLOAT_DATA (to)); | |
a0a23346 MB |
3485 | else if (UNSPECIFIEDP (to)) |
3486 | result = from; | |
2c20458f | 3487 | } |
2c20458f | 3488 | else if (FUNCTIONP (from)) |
cdfaafa9 | 3489 | /* FROM is a function, which use to adjust TO. */ |
2c20458f MB |
3490 | { |
3491 | /* Call function with current height as argument. | |
3492 | From is the new height. */ | |
cdfaafa9 | 3493 | Lisp_Object args[2]; |
2c20458f MB |
3494 | |
3495 | args[0] = from; | |
3496 | args[1] = to; | |
cdfaafa9 | 3497 | result = safe_call (2, args); |
2c20458f | 3498 | |
cdfaafa9 MB |
3499 | /* Ensure that if TO was absolute, so is the result. */ |
3500 | if (INTEGERP (to) && !INTEGERP (result)) | |
3501 | result = invalid; | |
2c20458f MB |
3502 | } |
3503 | ||
cdfaafa9 | 3504 | return result; |
2c20458f MB |
3505 | } |
3506 | ||
3507 | ||
3508 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3509 | store the resulting attributes in TO, which must be already be |
3510 | completely specified and contain only absolute attributes. Every | |
3511 | specified attribute of FROM overrides the corresponding attribute of | |
3512 | TO; relative attributes in FROM are merged with the absolute value in | |
a0a23346 MB |
3513 | TO and replace it. NAMED_MERGE_POINTS is used internally to detect |
3514 | loops in face inheritance; it should be 0 when called from other | |
3515 | places. */ | |
82641697 GM |
3516 | |
3517 | static INLINE void | |
a0a23346 | 3518 | merge_face_vectors (f, from, to, named_merge_points) |
2c20458f | 3519 | struct frame *f; |
82641697 | 3520 | Lisp_Object *from, *to; |
a0a23346 | 3521 | struct named_merge_point *named_merge_points; |
82641697 GM |
3522 | { |
3523 | int i; | |
2c20458f MB |
3524 | |
3525 | /* If FROM inherits from some other faces, merge their attributes into | |
3526 | TO before merging FROM's direct attributes. Note that an :inherit | |
3527 | attribute of `unspecified' is the same as one of nil; we never | |
3528 | merge :inherit attributes, so nil is more correct, but lots of | |
3529 | other code uses `unspecified' as a generic value for face attributes. */ | |
3530 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3531 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
a0a23346 | 3532 | merge_face_ref (f, from[LFACE_INHERIT_INDEX], to, 0, named_merge_points); |
2c20458f | 3533 | |
87188200 MB |
3534 | /* If TO specifies a :font attribute, and FROM specifies some |
3535 | font-related attribute, we need to clear TO's :font attribute | |
3536 | (because it will be inconsistent with whatever FROM specifies, and | |
3537 | FROM takes precedence). */ | |
3538 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3539 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3540 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3541 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3542 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
a08332c0 GM |
3543 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]) |
3544 | || !UNSPECIFIEDP (from[LFACE_AVGWIDTH_INDEX]))) | |
87188200 MB |
3545 | to[LFACE_FONT_INDEX] = Qnil; |
3546 | ||
82641697 GM |
3547 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3548 | if (!UNSPECIFIEDP (from[i])) | |
ab8469eb PJ |
3549 | { |
3550 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) | |
e1e419ec | 3551 | to[i] = merge_face_heights (from[i], to[i], to[i]); |
ab8469eb PJ |
3552 | else |
3553 | to[i] = from[i]; | |
3554 | } | |
2c20458f MB |
3555 | |
3556 | /* TO is always an absolute face, which should inherit from nothing. | |
3557 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3558 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3559 | } | |
3560 | ||
a0a23346 MB |
3561 | /* Merge the named face FACE_NAME on frame F, into the vector of face |
3562 | attributes TO. NAMED_MERGE_POINTS is used to detect loops in face | |
3563 | inheritance. Returns true if FACE_NAME is a valid face name and | |
3564 | merging succeeded. */ | |
87188200 | 3565 | |
a0a23346 MB |
3566 | static int |
3567 | merge_named_face (f, face_name, to, named_merge_points) | |
2c20458f | 3568 | struct frame *f; |
a0a23346 | 3569 | Lisp_Object face_name; |
2c20458f | 3570 | Lisp_Object *to; |
a0a23346 | 3571 | struct named_merge_point *named_merge_points; |
2c20458f | 3572 | { |
a0a23346 | 3573 | struct named_merge_point named_merge_point; |
2c20458f | 3574 | |
a0a23346 MB |
3575 | if (push_named_merge_point (&named_merge_point, |
3576 | face_name, &named_merge_points)) | |
2c20458f | 3577 | { |
e1e419ec | 3578 | struct gcpro gcpro1; |
a0a23346 MB |
3579 | Lisp_Object from[LFACE_VECTOR_SIZE]; |
3580 | int ok = get_lface_attributes (f, face_name, from, 0); | |
2c20458f | 3581 | |
a0a23346 | 3582 | if (ok) |
e1e419ec RS |
3583 | { |
3584 | GCPRO1 (named_merge_point.face_name); | |
3585 | merge_face_vectors (f, from, to, named_merge_points); | |
3586 | UNGCPRO; | |
3587 | } | |
2c20458f | 3588 | |
a0a23346 | 3589 | return ok; |
2c20458f | 3590 | } |
a0a23346 MB |
3591 | else |
3592 | return 0; | |
82641697 GM |
3593 | } |
3594 | ||
3595 | ||
a0a23346 MB |
3596 | /* Merge face attributes from the lisp `face reference' FACE_REF on |
3597 | frame F into the face attribute vector TO. If ERR_MSGS is non-zero, | |
3598 | problems with FACE_REF cause an error message to be shown. Return | |
3599 | non-zero if no errors occurred (regardless of the value of ERR_MSGS). | |
3600 | NAMED_MERGE_POINTS is used to detect loops in face inheritance or | |
3601 | list structure; it may be 0 for most callers. | |
3602 | ||
3603 | FACE_REF may be a single face specification or a list of such | |
3604 | specifications. Each face specification can be: | |
82641697 GM |
3605 | |
3606 | 1. A symbol or string naming a Lisp face. | |
3607 | ||
3608 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3609 | KEYWORD is a face attribute name, and value is an appropriate value | |
3610 | for that attribute. | |
3611 | ||
3612 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3613 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3614 | for compatibility with 20.2. | |
3615 | ||
3616 | Face specifications earlier in lists take precedence over later | |
3617 | specifications. */ | |
178c5d9c | 3618 | |
a0a23346 MB |
3619 | static int |
3620 | merge_face_ref (f, face_ref, to, err_msgs, named_merge_points) | |
82641697 | 3621 | struct frame *f; |
a0a23346 | 3622 | Lisp_Object face_ref; |
82641697 | 3623 | Lisp_Object *to; |
a0a23346 MB |
3624 | int err_msgs; |
3625 | struct named_merge_point *named_merge_points; | |
82641697 | 3626 | { |
a0a23346 MB |
3627 | int ok = 1; /* Succeed without an error? */ |
3628 | ||
3629 | if (CONSP (face_ref)) | |
82641697 | 3630 | { |
a0a23346 | 3631 | Lisp_Object first = XCAR (face_ref); |
178c5d9c | 3632 | |
82641697 GM |
3633 | if (EQ (first, Qforeground_color) |
3634 | || EQ (first, Qbackground_color)) | |
3635 | { | |
3636 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3637 | . COLOR). COLOR must be a string. */ | |
a0a23346 | 3638 | Lisp_Object color_name = XCDR (face_ref); |
82641697 GM |
3639 | Lisp_Object color = first; |
3640 | ||
3641 | if (STRINGP (color_name)) | |
3642 | { | |
3643 | if (EQ (color, Qforeground_color)) | |
3644 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3645 | else | |
3646 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3647 | } | |
3648 | else | |
a0a23346 MB |
3649 | { |
3650 | if (err_msgs) | |
3651 | add_to_log ("Invalid face color", color_name, Qnil); | |
3652 | ok = 0; | |
3653 | } | |
82641697 GM |
3654 | } |
3655 | else if (SYMBOLP (first) | |
d5db4077 | 3656 | && *SDATA (SYMBOL_NAME (first)) == ':') |
82641697 GM |
3657 | { |
3658 | /* Assume this is the property list form. */ | |
a0a23346 | 3659 | while (CONSP (face_ref) && CONSP (XCDR (face_ref))) |
82641697 | 3660 | { |
a0a23346 MB |
3661 | Lisp_Object keyword = XCAR (face_ref); |
3662 | Lisp_Object value = XCAR (XCDR (face_ref)); | |
3663 | int err = 0; | |
82641697 | 3664 | |
d9639b25 RS |
3665 | /* Specifying `unspecified' is a no-op. */ |
3666 | if (EQ (value, Qunspecified)) | |
3667 | ; | |
3668 | else if (EQ (keyword, QCfamily)) | |
82641697 GM |
3669 | { |
3670 | if (STRINGP (value)) | |
3671 | to[LFACE_FAMILY_INDEX] = value; | |
3672 | else | |
a0a23346 | 3673 | err = 1; |
82641697 GM |
3674 | } |
3675 | else if (EQ (keyword, QCheight)) | |
3676 | { | |
2c20458f | 3677 | Lisp_Object new_height = |
e1e419ec | 3678 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil); |
2c20458f | 3679 | |
a0a23346 | 3680 | if (! NILP (new_height)) |
2c20458f | 3681 | to[LFACE_HEIGHT_INDEX] = new_height; |
a0a23346 MB |
3682 | else |
3683 | err = 1; | |
82641697 GM |
3684 | } |
3685 | else if (EQ (keyword, QCweight)) | |
3686 | { | |
3687 | if (SYMBOLP (value) | |
3688 | && face_numeric_weight (value) >= 0) | |
3689 | to[LFACE_WEIGHT_INDEX] = value; | |
3690 | else | |
a0a23346 | 3691 | err = 1; |
82641697 GM |
3692 | } |
3693 | else if (EQ (keyword, QCslant)) | |
3694 | { | |
3695 | if (SYMBOLP (value) | |
3696 | && face_numeric_slant (value) >= 0) | |
3697 | to[LFACE_SLANT_INDEX] = value; | |
3698 | else | |
a0a23346 | 3699 | err = 1; |
82641697 GM |
3700 | } |
3701 | else if (EQ (keyword, QCunderline)) | |
3702 | { | |
3703 | if (EQ (value, Qt) | |
3704 | || NILP (value) | |
3705 | || STRINGP (value)) | |
3706 | to[LFACE_UNDERLINE_INDEX] = value; | |
3707 | else | |
a0a23346 | 3708 | err = 1; |
82641697 GM |
3709 | } |
3710 | else if (EQ (keyword, QCoverline)) | |
3711 | { | |
3712 | if (EQ (value, Qt) | |
3713 | || NILP (value) | |
3714 | || STRINGP (value)) | |
3715 | to[LFACE_OVERLINE_INDEX] = value; | |
3716 | else | |
a0a23346 | 3717 | err = 1; |
82641697 GM |
3718 | } |
3719 | else if (EQ (keyword, QCstrike_through)) | |
3720 | { | |
3721 | if (EQ (value, Qt) | |
3722 | || NILP (value) | |
3723 | || STRINGP (value)) | |
3724 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3725 | else | |
a0a23346 | 3726 | err = 1; |
82641697 GM |
3727 | } |
3728 | else if (EQ (keyword, QCbox)) | |
3729 | { | |
3730 | if (EQ (value, Qt)) | |
3731 | value = make_number (1); | |
3732 | if (INTEGERP (value) | |
3733 | || STRINGP (value) | |
3734 | || CONSP (value) | |
3735 | || NILP (value)) | |
3736 | to[LFACE_BOX_INDEX] = value; | |
3737 | else | |
a0a23346 | 3738 | err = 1; |
82641697 GM |
3739 | } |
3740 | else if (EQ (keyword, QCinverse_video) | |
3741 | || EQ (keyword, QCreverse_video)) | |
3742 | { | |
3743 | if (EQ (value, Qt) || NILP (value)) | |
3744 | to[LFACE_INVERSE_INDEX] = value; | |
3745 | else | |
a0a23346 | 3746 | err = 1; |
82641697 GM |
3747 | } |
3748 | else if (EQ (keyword, QCforeground)) | |
3749 | { | |
3750 | if (STRINGP (value)) | |
3751 | to[LFACE_FOREGROUND_INDEX] = value; | |
3752 | else | |
a0a23346 | 3753 | err = 1; |
82641697 GM |
3754 | } |
3755 | else if (EQ (keyword, QCbackground)) | |
3756 | { | |
3757 | if (STRINGP (value)) | |
3758 | to[LFACE_BACKGROUND_INDEX] = value; | |
3759 | else | |
a0a23346 | 3760 | err = 1; |
82641697 GM |
3761 | } |
3762 | else if (EQ (keyword, QCstipple)) | |
3763 | { | |
3764 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3765 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3766 | if (!NILP (pixmap_p)) |
3767 | to[LFACE_STIPPLE_INDEX] = value; | |
3768 | else | |
a0a23346 | 3769 | err = 1; |
82641697 GM |
3770 | #endif |
3771 | } | |
3772 | else if (EQ (keyword, QCwidth)) | |
3773 | { | |
3774 | if (SYMBOLP (value) | |
3775 | && face_numeric_swidth (value) >= 0) | |
3776 | to[LFACE_SWIDTH_INDEX] = value; | |
3777 | else | |
a0a23346 | 3778 | err = 1; |
82641697 | 3779 | } |
2c20458f MB |
3780 | else if (EQ (keyword, QCinherit)) |
3781 | { | |
a0a23346 MB |
3782 | /* This is not really very useful; it's just like a |
3783 | normal face reference. */ | |
3784 | if (! merge_face_ref (f, value, to, | |
3785 | err_msgs, named_merge_points)) | |
3786 | err = 1; | |
2c20458f | 3787 | } |
82641697 | 3788 | else |
a0a23346 MB |
3789 | err = 1; |
3790 | ||
3791 | if (err) | |
3792 | { | |
3793 | add_to_log ("Invalid face attribute %S %S", keyword, value); | |
3794 | ok = 0; | |
3795 | } | |
82641697 | 3796 | |
a0a23346 | 3797 | face_ref = XCDR (XCDR (face_ref)); |
82641697 GM |
3798 | } |
3799 | } | |
3800 | else | |
3801 | { | |
a0a23346 MB |
3802 | /* This is a list of face refs. Those at the beginning of the |
3803 | list take precedence over what follows, so we have to merge | |
3804 | from the end backwards. */ | |
3805 | Lisp_Object next = XCDR (face_ref); | |
3806 | ||
3807 | if (! NILP (next)) | |
3808 | ok = merge_face_ref (f, next, to, err_msgs, named_merge_points); | |
3809 | ||
3810 | if (! merge_face_ref (f, first, to, err_msgs, named_merge_points)) | |
3811 | ok = 0; | |
82641697 GM |
3812 | } |
3813 | } | |
3814 | else | |
3815 | { | |
a0a23346 MB |
3816 | /* FACE_REF ought to be a face name. */ |
3817 | ok = merge_named_face (f, face_ref, to, named_merge_points); | |
3818 | if (!ok && err_msgs) | |
3819 | add_to_log ("Invalid face reference: %s", face_ref, Qnil); | |
82641697 | 3820 | } |
a0a23346 MB |
3821 | |
3822 | return ok; | |
82641697 GM |
3823 | } |
3824 | ||
3825 | ||
3826 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3827 | Sinternal_make_lisp_face, 1, 2, 0, | |
7ee72033 | 3828 | doc: /* Make FACE, a symbol, a Lisp face with all attributes nil. |
228299fa GM |
3829 | If FACE was not known as a face before, create a new one. |
3830 | If optional argument FRAME is specified, make a frame-local face | |
3831 | for that frame. Otherwise operate on the global face definition. | |
7ee72033 MB |
3832 | Value is a vector of face attributes. */) |
3833 | (face, frame) | |
82641697 GM |
3834 | Lisp_Object face, frame; |
3835 | { | |
3836 | Lisp_Object global_lface, lface; | |
3837 | struct frame *f; | |
3838 | int i; | |
3839 | ||
b7826503 | 3840 | CHECK_SYMBOL (face); |
82641697 | 3841 | global_lface = lface_from_face_name (NULL, face, 0); |
178c5d9c | 3842 | |
82641697 GM |
3843 | if (!NILP (frame)) |
3844 | { | |
b7826503 | 3845 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3846 | f = XFRAME (frame); |
3847 | lface = lface_from_face_name (f, face, 0); | |
3848 | } | |
3849 | else | |
3850 | f = NULL, lface = Qnil; | |
3851 | ||
3852 | /* Add a global definition if there is none. */ | |
3853 | if (NILP (global_lface)) | |
3854 | { | |
3855 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3856 | Qunspecified); | |
a08332c0 | 3857 | AREF (global_lface, 0) = Qface; |
178c5d9c | 3858 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3859 | Vface_new_frame_defaults); |
178c5d9c | 3860 | |
82641697 GM |
3861 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3862 | face id to Lisp face is given by the vector lface_id_to_name. | |
3863 | The mapping from Lisp face to Lisp face id is given by the | |
3864 | property `face' of the Lisp face name. */ | |
3865 | if (next_lface_id == lface_id_to_name_size) | |
3866 | { | |
3867 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3868 | int sz = new_size * sizeof *lface_id_to_name; | |
3869 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3870 | lface_id_to_name_size = new_size; | |
3871 | } | |
178c5d9c | 3872 | |
82641697 GM |
3873 | lface_id_to_name[next_lface_id] = face; |
3874 | Fput (face, Qface, make_number (next_lface_id)); | |
3875 | ++next_lface_id; | |
3876 | } | |
3877 | else if (f == NULL) | |
3878 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3879 | AREF (global_lface, i) = Qunspecified; |
178c5d9c | 3880 | |
82641697 GM |
3881 | /* Add a frame-local definition. */ |
3882 | if (f) | |
3883 | { | |
3884 | if (NILP (lface)) | |
3885 | { | |
3886 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3887 | Qunspecified); | |
a08332c0 | 3888 | AREF (lface, 0) = Qface; |
82641697 GM |
3889 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); |
3890 | } | |
3891 | else | |
3892 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 3893 | AREF (lface, i) = Qunspecified; |
82641697 GM |
3894 | } |
3895 | else | |
3896 | lface = global_lface; | |
3897 | ||
33565969 RS |
3898 | /* Changing a named face means that all realized faces depending on |
3899 | that face are invalid. Since we cannot tell which realized faces | |
3900 | depend on the face, make sure they are all removed. This is done | |
3901 | by incrementing face_change_count. The next call to | |
3902 | init_iterator will then free realized faces. */ | |
46b00436 KS |
3903 | if (NILP (Fget (face, Qface_no_inherit))) |
3904 | { | |
3905 | ++face_change_count; | |
3906 | ++windows_or_buffers_changed; | |
3907 | } | |
33565969 | 3908 | |
82641697 GM |
3909 | xassert (LFACEP (lface)); |
3910 | check_lface (lface); | |
3911 | return lface; | |
3912 | } | |
3913 | ||
3914 | ||
3915 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3916 | Sinternal_lisp_face_p, 1, 2, 0, | |
7ee72033 | 3917 | doc: /* Return non-nil if FACE names a face. |
1d256714 | 3918 | If optional second argument FRAME is non-nil, check for the |
228299fa | 3919 | existence of a frame-local face with name FACE on that frame. |
7ee72033 MB |
3920 | Otherwise check for the existence of a global face. */) |
3921 | (face, frame) | |
82641697 GM |
3922 | Lisp_Object face, frame; |
3923 | { | |
3924 | Lisp_Object lface; | |
178c5d9c | 3925 | |
82641697 GM |
3926 | if (!NILP (frame)) |
3927 | { | |
b7826503 | 3928 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
3929 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
3930 | } | |
3931 | else | |
3932 | lface = lface_from_face_name (NULL, face, 0); | |
3933 | ||
3934 | return lface; | |
3935 | } | |
3936 | ||
3937 | ||
3938 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3939 | Sinternal_copy_lisp_face, 4, 4, 0, | |
7ee72033 | 3940 | doc: /* Copy face FROM to TO. |
5e9bab6f RS |
3941 | If FRAME is t, copy the global face definition of FROM. |
3942 | Otherwise, copy the frame-local definition of FROM on FRAME. | |
3943 | If NEW-FRAME is a frame, copy that data into the frame-local | |
3944 | definition of TO on NEW-FRAME. If NEW-FRAME is nil. | |
3945 | FRAME controls where the data is copied to. | |
228299fa | 3946 | |
5e9bab6f | 3947 | The value is TO. */) |
7ee72033 | 3948 | (from, to, frame, new_frame) |
82641697 GM |
3949 | Lisp_Object from, to, frame, new_frame; |
3950 | { | |
3951 | Lisp_Object lface, copy; | |
178c5d9c | 3952 | |
b7826503 PJ |
3953 | CHECK_SYMBOL (from); |
3954 | CHECK_SYMBOL (to); | |
82641697 GM |
3955 | |
3956 | if (EQ (frame, Qt)) | |
3957 | { | |
3958 | /* Copy global definition of FROM. We don't make copies of | |
3959 | strings etc. because 20.2 didn't do it either. */ | |
3960 | lface = lface_from_face_name (NULL, from, 1); | |
3961 | copy = Finternal_make_lisp_face (to, Qnil); | |
3962 | } | |
3963 | else | |
3964 | { | |
3965 | /* Copy frame-local definition of FROM. */ | |
5e9bab6f RS |
3966 | if (NILP (new_frame)) |
3967 | new_frame = frame; | |
b7826503 PJ |
3968 | CHECK_LIVE_FRAME (frame); |
3969 | CHECK_LIVE_FRAME (new_frame); | |
82641697 GM |
3970 | lface = lface_from_face_name (XFRAME (frame), from, 1); |
3971 | copy = Finternal_make_lisp_face (to, new_frame); | |
3972 | } | |
178c5d9c | 3973 | |
82641697 GM |
3974 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3975 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3976 | |
33565969 RS |
3977 | /* Changing a named face means that all realized faces depending on |
3978 | that face are invalid. Since we cannot tell which realized faces | |
3979 | depend on the face, make sure they are all removed. This is done | |
3980 | by incrementing face_change_count. The next call to | |
3981 | init_iterator will then free realized faces. */ | |
46b00436 KS |
3982 | if (NILP (Fget (to, Qface_no_inherit))) |
3983 | { | |
3984 | ++face_change_count; | |
3985 | ++windows_or_buffers_changed; | |
3986 | } | |
33565969 | 3987 | |
82641697 GM |
3988 | return to; |
3989 | } | |
3990 | ||
3991 | ||
3992 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3993 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
7ee72033 | 3994 | doc: /* Set attribute ATTR of FACE to VALUE. |
228299fa GM |
3995 | FRAME being a frame means change the face on that frame. |
3996 | FRAME nil means change the face of the selected frame. | |
3997 | FRAME t means change the default for new frames. | |
3998 | FRAME 0 means change the face on all frames, and change the default | |
7ee72033 MB |
3999 | for new frames. */) |
4000 | (face, attr, value, frame) | |
82641697 GM |
4001 | Lisp_Object face, attr, value, frame; |
4002 | { | |
4003 | Lisp_Object lface; | |
4004 | Lisp_Object old_value = Qnil; | |
39506348 KH |
4005 | /* Set 1 if ATTR is QCfont. */ |
4006 | int font_attr_p = 0; | |
4007 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 4008 | int font_related_attr_p = 0; |
178c5d9c | 4009 | |
b7826503 PJ |
4010 | CHECK_SYMBOL (face); |
4011 | CHECK_SYMBOL (attr); | |
82641697 | 4012 | |
d1bf13b3 | 4013 | face = resolve_face_name (face, 1); |
c7ae3284 | 4014 | |
628436fb GM |
4015 | /* If FRAME is 0, change face on all frames, and change the |
4016 | default for new frames. */ | |
4017 | if (INTEGERP (frame) && XINT (frame) == 0) | |
4018 | { | |
4019 | Lisp_Object tail; | |
d12d0a9b | 4020 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
4021 | FOR_EACH_FRAME (tail, frame) |
4022 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 4023 | return face; |
628436fb GM |
4024 | } |
4025 | ||
82641697 GM |
4026 | /* Set lface to the Lisp attribute vector of FACE. */ |
4027 | if (EQ (frame, Qt)) | |
4028 | lface = lface_from_face_name (NULL, face, 1); | |
4029 | else | |
4030 | { | |
4031 | if (NILP (frame)) | |
c0617987 | 4032 | frame = selected_frame; |
178c5d9c | 4033 | |
b7826503 | 4034 | CHECK_LIVE_FRAME (frame); |
82641697 | 4035 | lface = lface_from_face_name (XFRAME (frame), face, 0); |
178c5d9c | 4036 | |
82641697 GM |
4037 | /* If a frame-local face doesn't exist yet, create one. */ |
4038 | if (NILP (lface)) | |
4039 | lface = Finternal_make_lisp_face (face, frame); | |
4040 | } | |
4041 | ||
4042 | if (EQ (attr, QCfamily)) | |
4043 | { | |
4044 | if (!UNSPECIFIEDP (value)) | |
4045 | { | |
b7826503 | 4046 | CHECK_STRING (value); |
d5db4077 | 4047 | if (SCHARS (value) == 0) |
82641697 GM |
4048 | signal_error ("Invalid face family", value); |
4049 | } | |
4050 | old_value = LFACE_FAMILY (lface); | |
4051 | LFACE_FAMILY (lface) = value; | |
4052 | font_related_attr_p = 1; | |
4053 | } | |
4054 | else if (EQ (attr, QCheight)) | |
4055 | { | |
4056 | if (!UNSPECIFIEDP (value)) | |
4057 | { | |
d8055bfc | 4058 | Lisp_Object test; |
2c20458f | 4059 | |
d8055bfc GM |
4060 | test = (EQ (face, Qdefault) |
4061 | ? value | |
4062 | /* The default face must have an absolute size, | |
4063 | otherwise, we do a test merge with a random | |
4064 | height to see if VALUE's ok. */ | |
e1e419ec | 4065 | : merge_face_heights (value, make_number (10), Qnil)); |
d8055bfc GM |
4066 | |
4067 | if (!INTEGERP (test) || XINT (test) <= 0) | |
82641697 GM |
4068 | signal_error ("Invalid face height", value); |
4069 | } | |
2c20458f | 4070 | |
82641697 GM |
4071 | old_value = LFACE_HEIGHT (lface); |
4072 | LFACE_HEIGHT (lface) = value; | |
4073 | font_related_attr_p = 1; | |
4074 | } | |
4075 | else if (EQ (attr, QCweight)) | |
4076 | { | |
4077 | if (!UNSPECIFIEDP (value)) | |
4078 | { | |
b7826503 | 4079 | CHECK_SYMBOL (value); |
82641697 GM |
4080 | if (face_numeric_weight (value) < 0) |
4081 | signal_error ("Invalid face weight", value); | |
4082 | } | |
4083 | old_value = LFACE_WEIGHT (lface); | |
4084 | LFACE_WEIGHT (lface) = value; | |
4085 | font_related_attr_p = 1; | |
4086 | } | |
4087 | else if (EQ (attr, QCslant)) | |
4088 | { | |
4089 | if (!UNSPECIFIEDP (value)) | |
4090 | { | |
b7826503 | 4091 | CHECK_SYMBOL (value); |
82641697 GM |
4092 | if (face_numeric_slant (value) < 0) |
4093 | signal_error ("Invalid face slant", value); | |
4094 | } | |
4095 | old_value = LFACE_SLANT (lface); | |
4096 | LFACE_SLANT (lface) = value; | |
4097 | font_related_attr_p = 1; | |
4098 | } | |
4099 | else if (EQ (attr, QCunderline)) | |
4100 | { | |
4101 | if (!UNSPECIFIEDP (value)) | |
4102 | if ((SYMBOLP (value) | |
4103 | && !EQ (value, Qt) | |
4104 | && !EQ (value, Qnil)) | |
4105 | /* Underline color. */ | |
4106 | || (STRINGP (value) | |
d5db4077 | 4107 | && SCHARS (value) == 0)) |
82641697 | 4108 | signal_error ("Invalid face underline", value); |
178c5d9c | 4109 | |
82641697 GM |
4110 | old_value = LFACE_UNDERLINE (lface); |
4111 | LFACE_UNDERLINE (lface) = value; | |
4112 | } | |
4113 | else if (EQ (attr, QCoverline)) | |
4114 | { | |
4115 | if (!UNSPECIFIEDP (value)) | |
4116 | if ((SYMBOLP (value) | |
4117 | && !EQ (value, Qt) | |
4118 | && !EQ (value, Qnil)) | |
4119 | /* Overline color. */ | |
4120 | || (STRINGP (value) | |
d5db4077 | 4121 | && SCHARS (value) == 0)) |
82641697 | 4122 | signal_error ("Invalid face overline", value); |
178c5d9c | 4123 | |
82641697 GM |
4124 | old_value = LFACE_OVERLINE (lface); |
4125 | LFACE_OVERLINE (lface) = value; | |
4126 | } | |
4127 | else if (EQ (attr, QCstrike_through)) | |
4128 | { | |
4129 | if (!UNSPECIFIEDP (value)) | |
4130 | if ((SYMBOLP (value) | |
4131 | && !EQ (value, Qt) | |
4132 | && !EQ (value, Qnil)) | |
4133 | /* Strike-through color. */ | |
4134 | || (STRINGP (value) | |
d5db4077 | 4135 | && SCHARS (value) == 0)) |
82641697 | 4136 | signal_error ("Invalid face strike-through", value); |
178c5d9c | 4137 | |
82641697 GM |
4138 | old_value = LFACE_STRIKE_THROUGH (lface); |
4139 | LFACE_STRIKE_THROUGH (lface) = value; | |
4140 | } | |
4141 | else if (EQ (attr, QCbox)) | |
4142 | { | |
4143 | int valid_p; | |
178c5d9c | 4144 | |
82641697 GM |
4145 | /* Allow t meaning a simple box of width 1 in foreground color |
4146 | of the face. */ | |
4147 | if (EQ (value, Qt)) | |
4148 | value = make_number (1); | |
4149 | ||
4150 | if (UNSPECIFIEDP (value)) | |
4151 | valid_p = 1; | |
4152 | else if (NILP (value)) | |
4153 | valid_p = 1; | |
4154 | else if (INTEGERP (value)) | |
89624b8b | 4155 | valid_p = XINT (value) != 0; |
82641697 | 4156 | else if (STRINGP (value)) |
d5db4077 | 4157 | valid_p = SCHARS (value) > 0; |
82641697 GM |
4158 | else if (CONSP (value)) |
4159 | { | |
4160 | Lisp_Object tem; | |
178c5d9c | 4161 | |
82641697 GM |
4162 | tem = value; |
4163 | while (CONSP (tem)) | |
4164 | { | |
4165 | Lisp_Object k, v; | |
4166 | ||
4167 | k = XCAR (tem); | |
4168 | tem = XCDR (tem); | |
4169 | if (!CONSP (tem)) | |
4170 | break; | |
4171 | v = XCAR (tem); | |
4172 | tem = XCDR (tem); | |
178c5d9c | 4173 | |
82641697 GM |
4174 | if (EQ (k, QCline_width)) |
4175 | { | |
89624b8b | 4176 | if (!INTEGERP (v) || XINT (v) == 0) |
82641697 GM |
4177 | break; |
4178 | } | |
4179 | else if (EQ (k, QCcolor)) | |
4180 | { | |
91c212f1 | 4181 | if (!NILP (v) && (!STRINGP (v) || SCHARS (v) == 0)) |
82641697 GM |
4182 | break; |
4183 | } | |
4184 | else if (EQ (k, QCstyle)) | |
4185 | { | |
4186 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
4187 | break; | |
4188 | } | |
4189 | else | |
4190 | break; | |
4191 | } | |
4192 | ||
4193 | valid_p = NILP (tem); | |
4194 | } | |
4195 | else | |
4196 | valid_p = 0; | |
4197 | ||
4198 | if (!valid_p) | |
4199 | signal_error ("Invalid face box", value); | |
178c5d9c | 4200 | |
82641697 GM |
4201 | old_value = LFACE_BOX (lface); |
4202 | LFACE_BOX (lface) = value; | |
4203 | } | |
4204 | else if (EQ (attr, QCinverse_video) | |
4205 | || EQ (attr, QCreverse_video)) | |
4206 | { | |
4207 | if (!UNSPECIFIEDP (value)) | |
4208 | { | |
b7826503 | 4209 | CHECK_SYMBOL (value); |
82641697 GM |
4210 | if (!EQ (value, Qt) && !NILP (value)) |
4211 | signal_error ("Invalid inverse-video face attribute value", value); | |
4212 | } | |
4213 | old_value = LFACE_INVERSE (lface); | |
4214 | LFACE_INVERSE (lface) = value; | |
4215 | } | |
4216 | else if (EQ (attr, QCforeground)) | |
4217 | { | |
ef917393 | 4218 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4219 | { |
4220 | /* Don't check for valid color names here because it depends | |
4221 | on the frame (display) whether the color will be valid | |
4222 | when the face is realized. */ | |
b7826503 | 4223 | CHECK_STRING (value); |
d5db4077 | 4224 | if (SCHARS (value) == 0) |
82641697 GM |
4225 | signal_error ("Empty foreground color value", value); |
4226 | } | |
4227 | old_value = LFACE_FOREGROUND (lface); | |
4228 | LFACE_FOREGROUND (lface) = value; | |
4229 | } | |
4230 | else if (EQ (attr, QCbackground)) | |
4231 | { | |
ef917393 | 4232 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
4233 | { |
4234 | /* Don't check for valid color names here because it depends | |
4235 | on the frame (display) whether the color will be valid | |
4236 | when the face is realized. */ | |
b7826503 | 4237 | CHECK_STRING (value); |
d5db4077 | 4238 | if (SCHARS (value) == 0) |
82641697 GM |
4239 | signal_error ("Empty background color value", value); |
4240 | } | |
4241 | old_value = LFACE_BACKGROUND (lface); | |
4242 | LFACE_BACKGROUND (lface) = value; | |
4243 | } | |
4244 | else if (EQ (attr, QCstipple)) | |
4245 | { | |
4246 | #ifdef HAVE_X_WINDOWS | |
4247 | if (!UNSPECIFIEDP (value) | |
4248 | && !NILP (value) | |
fef04523 | 4249 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
4250 | signal_error ("Invalid stipple attribute", value); |
4251 | old_value = LFACE_STIPPLE (lface); | |
4252 | LFACE_STIPPLE (lface) = value; | |
4253 | #endif /* HAVE_X_WINDOWS */ | |
4254 | } | |
4255 | else if (EQ (attr, QCwidth)) | |
4256 | { | |
4257 | if (!UNSPECIFIEDP (value)) | |
4258 | { | |
b7826503 | 4259 | CHECK_SYMBOL (value); |
82641697 GM |
4260 | if (face_numeric_swidth (value) < 0) |
4261 | signal_error ("Invalid face width", value); | |
4262 | } | |
4263 | old_value = LFACE_SWIDTH (lface); | |
4264 | LFACE_SWIDTH (lface) = value; | |
4265 | font_related_attr_p = 1; | |
4266 | } | |
4267 | else if (EQ (attr, QCfont)) | |
4268 | { | |
c3cee013 | 4269 | #ifdef HAVE_WINDOW_SYSTEM |
3d90c96c | 4270 | if (EQ (frame, Qt) || FRAME_WINDOW_P (XFRAME (frame))) |
96fbd2c6 EZ |
4271 | { |
4272 | /* Set font-related attributes of the Lisp face from an XLFD | |
4273 | font name. */ | |
4274 | struct frame *f; | |
4275 | Lisp_Object tmp; | |
82641697 | 4276 | |
96fbd2c6 EZ |
4277 | if (EQ (frame, Qt)) |
4278 | f = SELECTED_FRAME (); | |
4279 | else | |
4280 | f = check_x_frame (frame); | |
178c5d9c | 4281 | |
e67f5ccc RS |
4282 | if (!UNSPECIFIEDP (value)) |
4283 | { | |
4284 | CHECK_STRING (value); | |
39506348 | 4285 | |
e67f5ccc RS |
4286 | /* VALUE may be a fontset name or an alias of fontset. In |
4287 | such a case, use the base fontset name. */ | |
4288 | tmp = Fquery_fontset (value, Qnil); | |
4289 | if (!NILP (tmp)) | |
4290 | value = tmp; | |
4291 | ||
4292 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
4293 | signal_error ("Invalid font or fontset name", value); | |
4294 | } | |
39506348 | 4295 | |
96fbd2c6 EZ |
4296 | font_attr_p = 1; |
4297 | } | |
c3cee013 | 4298 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4299 | } |
2c20458f MB |
4300 | else if (EQ (attr, QCinherit)) |
4301 | { | |
4302 | Lisp_Object tail; | |
4303 | if (SYMBOLP (value)) | |
4304 | tail = Qnil; | |
4305 | else | |
4306 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
4307 | if (!SYMBOLP (XCAR (tail))) | |
4308 | break; | |
4309 | if (NILP (tail)) | |
4310 | LFACE_INHERIT (lface) = value; | |
4311 | else | |
6288c62f | 4312 | signal_error ("Invalid face inheritance", value); |
2c20458f | 4313 | } |
82641697 GM |
4314 | else if (EQ (attr, QCbold)) |
4315 | { | |
4316 | old_value = LFACE_WEIGHT (lface); | |
4317 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
4318 | font_related_attr_p = 1; | |
4319 | } | |
4320 | else if (EQ (attr, QCitalic)) | |
4321 | { | |
4322 | old_value = LFACE_SLANT (lface); | |
4323 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
4324 | font_related_attr_p = 1; | |
4325 | } | |
4326 | else | |
4327 | signal_error ("Invalid face attribute name", attr); | |
4328 | ||
39506348 KH |
4329 | if (font_related_attr_p |
4330 | && !UNSPECIFIEDP (value)) | |
4331 | /* If a font-related attribute other than QCfont is specified, the | |
4332 | original `font' attribute nor that of default face is useless | |
4333 | to determine a new font. Thus, we set it to nil so that font | |
4334 | selection mechanism doesn't use it. */ | |
4335 | LFACE_FONT (lface) = Qnil; | |
4336 | ||
82641697 GM |
4337 | /* Changing a named face means that all realized faces depending on |
4338 | that face are invalid. Since we cannot tell which realized faces | |
4339 | depend on the face, make sure they are all removed. This is done | |
4340 | by incrementing face_change_count. The next call to | |
4341 | init_iterator will then free realized faces. */ | |
4342 | if (!EQ (frame, Qt) | |
46b00436 | 4343 | && NILP (Fget (face, Qface_no_inherit)) |
82641697 GM |
4344 | && (EQ (attr, QCfont) |
4345 | || NILP (Fequal (old_value, value)))) | |
4346 | { | |
4347 | ++face_change_count; | |
4348 | ++windows_or_buffers_changed; | |
4349 | } | |
4350 | ||
0eb2ecde | 4351 | if (!UNSPECIFIEDP (value) |
82641697 | 4352 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
4353 | { |
4354 | Lisp_Object param; | |
4355 | ||
4356 | param = Qnil; | |
178c5d9c | 4357 | |
8bd201d6 GM |
4358 | if (EQ (face, Qdefault)) |
4359 | { | |
b9c769f8 | 4360 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
4361 | /* Changed font-related attributes of the `default' face are |
4362 | reflected in changed `font' frame parameters. */ | |
ceeda019 GM |
4363 | if (FRAMEP (frame) |
4364 | && (font_related_attr_p || font_attr_p) | |
8bd201d6 GM |
4365 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
4366 | set_font_frame_param (frame, lface); | |
b9c769f8 EZ |
4367 | else |
4368 | #endif /* HAVE_WINDOW_SYSTEM */ | |
4369 | ||
4370 | if (EQ (attr, QCforeground)) | |
8bd201d6 GM |
4371 | param = Qforeground_color; |
4372 | else if (EQ (attr, QCbackground)) | |
4373 | param = Qbackground_color; | |
4374 | } | |
b9c769f8 | 4375 | #ifdef HAVE_WINDOW_SYSTEM |
c3cee013 | 4376 | #ifndef WINDOWSNT |
8bd201d6 GM |
4377 | else if (EQ (face, Qscroll_bar)) |
4378 | { | |
4379 | /* Changing the colors of `scroll-bar' sets frame parameters | |
4380 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
4381 | if (EQ (attr, QCforeground)) | |
4382 | param = Qscroll_bar_foreground; | |
4383 | else if (EQ (attr, QCbackground)) | |
4384 | param = Qscroll_bar_background; | |
4385 | } | |
d12d0a9b | 4386 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
4387 | else if (EQ (face, Qborder)) |
4388 | { | |
4389 | /* Changing background color of `border' sets frame parameter | |
4390 | `border-color'. */ | |
4391 | if (EQ (attr, QCbackground)) | |
4392 | param = Qborder_color; | |
4393 | } | |
4394 | else if (EQ (face, Qcursor)) | |
4395 | { | |
4396 | /* Changing background color of `cursor' sets frame parameter | |
4397 | `cursor-color'. */ | |
4398 | if (EQ (attr, QCbackground)) | |
4399 | param = Qcursor_color; | |
4400 | } | |
4401 | else if (EQ (face, Qmouse)) | |
4402 | { | |
4403 | /* Changing background color of `mouse' sets frame parameter | |
4404 | `mouse-color'. */ | |
4405 | if (EQ (attr, QCbackground)) | |
4406 | param = Qmouse_color; | |
4407 | } | |
b9c769f8 | 4408 | #endif /* HAVE_WINDOW_SYSTEM */ |
563f68f1 | 4409 | else if (EQ (face, Qmenu)) |
ceeda019 GM |
4410 | { |
4411 | /* Indicate that we have to update the menu bar when | |
4412 | realizing faces on FRAME. FRAME t change the | |
4413 | default for new frames. We do this by setting | |
4414 | setting the flag in new face caches */ | |
4415 | if (FRAMEP (frame)) | |
4416 | { | |
4417 | struct frame *f = XFRAME (frame); | |
4418 | if (FRAME_FACE_CACHE (f) == NULL) | |
4419 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
4420 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 1; | |
4421 | } | |
4422 | else | |
4423 | menu_face_changed_default = 1; | |
4424 | } | |
8bd201d6 | 4425 | |
39506348 | 4426 | if (!NILP (param)) |
ab8469eb PJ |
4427 | { |
4428 | if (EQ (frame, Qt)) | |
4429 | /* Update `default-frame-alist', which is used for new frames. */ | |
4430 | { | |
4431 | store_in_alist (&Vdefault_frame_alist, param, value); | |
4432 | } | |
4433 | else | |
4434 | /* Update the current frame's parameters. */ | |
4435 | { | |
4436 | Lisp_Object cons; | |
4437 | cons = XCAR (Vparam_value_alist); | |
4438 | XSETCAR (cons, param); | |
4439 | XSETCDR (cons, value); | |
4440 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4441 | } | |
4442 | } | |
8bd201d6 | 4443 | } |
82641697 | 4444 | |
82641697 GM |
4445 | return face; |
4446 | } | |
4447 | ||
4448 | ||
c3cee013 | 4449 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4450 | |
39506348 KH |
4451 | /* Set the `font' frame parameter of FRAME determined from `default' |
4452 | face attributes LFACE. If a face or fontset name is explicitely | |
4453 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4454 | from the other font-related atrributes of LFACE. In that case, if | |
4455 | there's no matching font, signals an error. */ | |
82641697 GM |
4456 | |
4457 | static void | |
4458 | set_font_frame_param (frame, lface) | |
4459 | Lisp_Object frame, lface; | |
4460 | { | |
4461 | struct frame *f = XFRAME (frame); | |
82641697 | 4462 | |
482cca61 | 4463 | if (FRAME_WINDOW_P (f)) |
82641697 | 4464 | { |
482cca61 GM |
4465 | Lisp_Object font_name; |
4466 | char *font; | |
177c0ea7 | 4467 | |
482cca61 GM |
4468 | if (STRINGP (LFACE_FONT (lface))) |
4469 | font_name = LFACE_FONT (lface); | |
4470 | else | |
4471 | { | |
4472 | /* Choose a font name that reflects LFACE's attributes and has | |
4473 | the registry and encoding pattern specified in the default | |
4474 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
6ae2cd57 | 4475 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0, 0); |
482cca61 GM |
4476 | if (!font) |
4477 | error ("No font matches the specified attribute"); | |
4478 | font_name = build_string (font); | |
4479 | xfree (font); | |
4480 | } | |
177c0ea7 | 4481 | |
a5f696ac | 4482 | f->default_face_done_p = 0; |
482cca61 GM |
4483 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); |
4484 | } | |
82641697 GM |
4485 | } |
4486 | ||
4487 | ||
8bd201d6 GM |
4488 | /* Update the corresponding face when frame parameter PARAM on frame F |
4489 | has been assigned the value NEW_VALUE. */ | |
4490 | ||
4491 | void | |
4492 | update_face_from_frame_parameter (f, param, new_value) | |
4493 | struct frame *f; | |
4494 | Lisp_Object param, new_value; | |
4495 | { | |
46b00436 | 4496 | Lisp_Object face = Qnil; |
8bd201d6 GM |
4497 | Lisp_Object lface; |
4498 | ||
4499 | /* If there are no faces yet, give up. This is the case when called | |
4500 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4501 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4502 | if (NILP (f->face_alist)) |
4503 | return; | |
178c5d9c | 4504 | |
8bd201d6 GM |
4505 | if (EQ (param, Qforeground_color)) |
4506 | { | |
46b00436 KS |
4507 | face = Qdefault; |
4508 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4509 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) |
4510 | ? new_value : Qunspecified); | |
4511 | realize_basic_faces (f); | |
4512 | } | |
4513 | else if (EQ (param, Qbackground_color)) | |
4514 | { | |
92610620 GM |
4515 | Lisp_Object frame; |
4516 | ||
4517 | /* Changing the background color might change the background | |
c20577bc JL |
4518 | mode, so that we have to load new defface specs. |
4519 | Call frame-set-background-mode to do that. */ | |
92610620 | 4520 | XSETFRAME (frame, f); |
c20577bc | 4521 | call1 (Qframe_set_background_mode, frame); |
178c5d9c | 4522 | |
46b00436 KS |
4523 | face = Qdefault; |
4524 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4525 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4526 | ? new_value : Qunspecified); | |
4527 | realize_basic_faces (f); | |
4528 | } | |
46b00436 | 4529 | else if (EQ (param, Qborder_color)) |
8bd201d6 | 4530 | { |
46b00436 KS |
4531 | face = Qborder; |
4532 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4533 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4534 | ? new_value : Qunspecified); | |
4535 | } | |
4536 | else if (EQ (param, Qcursor_color)) | |
4537 | { | |
46b00436 KS |
4538 | face = Qcursor; |
4539 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4540 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4541 | ? new_value : Qunspecified); | |
4542 | } | |
4543 | else if (EQ (param, Qmouse_color)) | |
4544 | { | |
46b00436 KS |
4545 | face = Qmouse; |
4546 | lface = lface_from_face_name (f, face, 1); | |
8bd201d6 GM |
4547 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) |
4548 | ? new_value : Qunspecified); | |
4549 | } | |
46b00436 KS |
4550 | |
4551 | /* Changing a named face means that all realized faces depending on | |
4552 | that face are invalid. Since we cannot tell which realized faces | |
4553 | depend on the face, make sure they are all removed. This is done | |
4554 | by incrementing face_change_count. The next call to | |
4555 | init_iterator will then free realized faces. */ | |
4556 | if (!NILP (face) | |
4557 | && NILP (Fget (face, Qface_no_inherit))) | |
4558 | { | |
4559 | ++face_change_count; | |
4560 | ++windows_or_buffers_changed; | |
4561 | } | |
8bd201d6 GM |
4562 | } |
4563 | ||
4564 | ||
82641697 GM |
4565 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4566 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4567 | doesn't take a frame argument. */ | |
4568 | ||
4569 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
7ee72033 MB |
4570 | Sinternal_face_x_get_resource, 3, 3, 0, doc: /* */) |
4571 | (resource, class, frame) | |
82641697 GM |
4572 | Lisp_Object resource, class, frame; |
4573 | { | |
c3cee013 | 4574 | Lisp_Object value = Qnil; |
b7826503 PJ |
4575 | CHECK_STRING (resource); |
4576 | CHECK_STRING (class); | |
4577 | CHECK_LIVE_FRAME (frame); | |
82641697 GM |
4578 | BLOCK_INPUT; |
4579 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4580 | resource, class, Qnil, Qnil); | |
4581 | UNBLOCK_INPUT; | |
4582 | return value; | |
4583 | } | |
4584 | ||
4585 | ||
4586 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4587 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4588 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4589 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4590 | |
82641697 GM |
4591 | static Lisp_Object |
4592 | face_boolean_x_resource_value (value, signal_p) | |
4593 | Lisp_Object value; | |
4594 | int signal_p; | |
4595 | { | |
4596 | Lisp_Object result = make_number (0); | |
4597 | ||
4598 | xassert (STRINGP (value)); | |
178c5d9c | 4599 | |
d5db4077 KR |
4600 | if (xstricmp (SDATA (value), "on") == 0 |
4601 | || xstricmp (SDATA (value), "true") == 0) | |
82641697 | 4602 | result = Qt; |
d5db4077 KR |
4603 | else if (xstricmp (SDATA (value), "off") == 0 |
4604 | || xstricmp (SDATA (value), "false") == 0) | |
82641697 | 4605 | result = Qnil; |
d5db4077 | 4606 | else if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4607 | result = Qunspecified; |
4608 | else if (signal_p) | |
4609 | signal_error ("Invalid face attribute value from X resource", value); | |
4610 | ||
4611 | return result; | |
4612 | } | |
4613 | ||
4614 | ||
4615 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4616 | Finternal_set_lisp_face_attribute_from_resource, | |
4617 | Sinternal_set_lisp_face_attribute_from_resource, | |
7ee72033 MB |
4618 | 3, 4, 0, doc: /* */) |
4619 | (face, attr, value, frame) | |
82641697 GM |
4620 | Lisp_Object face, attr, value, frame; |
4621 | { | |
b7826503 PJ |
4622 | CHECK_SYMBOL (face); |
4623 | CHECK_SYMBOL (attr); | |
4624 | CHECK_STRING (value); | |
82641697 | 4625 | |
d5db4077 | 4626 | if (xstricmp (SDATA (value), "unspecified") == 0) |
82641697 GM |
4627 | value = Qunspecified; |
4628 | else if (EQ (attr, QCheight)) | |
4629 | { | |
4630 | value = Fstring_to_number (value, make_number (10)); | |
4631 | if (XINT (value) <= 0) | |
4632 | signal_error ("Invalid face height from X resource", value); | |
4633 | } | |
4634 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4635 | value = face_boolean_x_resource_value (value, 1); | |
4636 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
d5db4077 | 4637 | value = intern (SDATA (value)); |
82641697 GM |
4638 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) |
4639 | value = face_boolean_x_resource_value (value, 1); | |
4640 | else if (EQ (attr, QCunderline) | |
4641 | || EQ (attr, QCoverline) | |
27188d11 | 4642 | || EQ (attr, QCstrike_through)) |
82641697 GM |
4643 | { |
4644 | Lisp_Object boolean_value; | |
4645 | ||
4646 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4647 | VALUE does NOT specify a color. */ | |
4648 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4649 | if (SYMBOLP (boolean_value)) | |
4650 | value = boolean_value; | |
4651 | } | |
27188d11 GM |
4652 | else if (EQ (attr, QCbox)) |
4653 | value = Fcar (Fread_from_string (value, Qnil, Qnil)); | |
82641697 GM |
4654 | |
4655 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4656 | } | |
4657 | ||
c3cee013 | 4658 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4659 | |
c7ae3284 GM |
4660 | \f |
4661 | /*********************************************************************** | |
4662 | Menu face | |
4663 | ***********************************************************************/ | |
4664 | ||
bce72079 | 4665 | #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT |
c7ae3284 | 4666 | |
bce72079 GM |
4667 | /* Make menus on frame F appear as specified by the `menu' face. */ |
4668 | ||
4669 | static void | |
4670 | x_update_menu_appearance (f) | |
c7ae3284 | 4671 | struct frame *f; |
c7ae3284 | 4672 | { |
a03ad468 | 4673 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); |
bce72079 | 4674 | XrmDatabase rdb; |
178c5d9c | 4675 | |
bce72079 GM |
4676 | if (dpyinfo |
4677 | && (rdb = XrmGetDatabase (FRAME_X_DISPLAY (f)), | |
4678 | rdb != NULL)) | |
c7ae3284 | 4679 | { |
bce72079 GM |
4680 | char line[512]; |
4681 | Lisp_Object lface = lface_from_face_name (f, Qmenu, 1); | |
4682 | struct face *face = FACE_FROM_ID (f, MENU_FACE_ID); | |
53c208f6 | 4683 | const char *myname = SDATA (Vx_resource_name); |
bce72079 | 4684 | int changed_p = 0; |
8ad582ac GM |
4685 | #ifdef USE_MOTIF |
4686 | const char *popup_path = "popup_menu"; | |
4687 | #else | |
4688 | const char *popup_path = "menu.popup"; | |
4689 | #endif | |
177c0ea7 | 4690 | |
bce72079 GM |
4691 | if (STRINGP (LFACE_FOREGROUND (lface))) |
4692 | { | |
8ad582ac GM |
4693 | sprintf (line, "%s.%s*foreground: %s", |
4694 | myname, popup_path, | |
d5db4077 | 4695 | SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4696 | XrmPutLineResource (&rdb, line); |
4697 | sprintf (line, "%s.pane.menubar*foreground: %s", | |
d5db4077 | 4698 | myname, SDATA (LFACE_FOREGROUND (lface))); |
bce72079 GM |
4699 | XrmPutLineResource (&rdb, line); |
4700 | changed_p = 1; | |
4701 | } | |
178c5d9c | 4702 | |
bce72079 GM |
4703 | if (STRINGP (LFACE_BACKGROUND (lface))) |
4704 | { | |
8ad582ac GM |
4705 | sprintf (line, "%s.%s*background: %s", |
4706 | myname, popup_path, | |
d5db4077 | 4707 | SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
4708 | XrmPutLineResource (&rdb, line); |
4709 | sprintf (line, "%s.pane.menubar*background: %s", | |
d5db4077 | 4710 | myname, SDATA (LFACE_BACKGROUND (lface))); |
bce72079 GM |
4711 | XrmPutLineResource (&rdb, line); |
4712 | changed_p = 1; | |
4713 | } | |
177c0ea7 | 4714 | |
bce72079 GM |
4715 | if (face->font_name |
4716 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4717 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4718 | || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface)) | |
4719 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4720 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4721 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4722 | { | |
a03ad468 | 4723 | #ifdef USE_MOTIF |
bce72079 | 4724 | const char *suffix = "List"; |
211f2210 | 4725 | Bool motif = True; |
a2d7e722 JD |
4726 | #else |
4727 | #if defined HAVE_X_I18N | |
4728 | ||
4729 | const char *suffix = "Set"; | |
a03ad468 | 4730 | #else |
bce72079 | 4731 | const char *suffix = ""; |
a2d7e722 | 4732 | #endif |
211f2210 | 4733 | Bool motif = False; |
2defe37f | 4734 | #endif |
211f2210 | 4735 | #if defined HAVE_X_I18N |
2defe37f SM |
4736 | extern char *xic_create_fontsetname |
4737 | P_ ((char *base_fontname, Bool motif)); | |
211f2210 | 4738 | char *fontsetname = xic_create_fontsetname (face->font_name, motif); |
2defe37f SM |
4739 | #else |
4740 | char *fontsetname = face->font_name; | |
bce72079 GM |
4741 | #endif |
4742 | sprintf (line, "%s.pane.menubar*font%s: %s", | |
2defe37f | 4743 | myname, suffix, fontsetname); |
bce72079 | 4744 | XrmPutLineResource (&rdb, line); |
2eddf899 | 4745 | sprintf (line, "%s.%s*font%s: %s", |
2defe37f | 4746 | myname, popup_path, suffix, fontsetname); |
bce72079 GM |
4747 | XrmPutLineResource (&rdb, line); |
4748 | changed_p = 1; | |
211f2210 SM |
4749 | if (fontsetname != face->font_name) |
4750 | xfree (fontsetname); | |
bce72079 | 4751 | } |
c7ae3284 | 4752 | |
bce72079 | 4753 | if (changed_p && f->output_data.x->menubar_widget) |
ac17f0bf | 4754 | free_frame_menubar (f); |
c7ae3284 GM |
4755 | } |
4756 | } | |
4757 | ||
bce72079 | 4758 | #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */ |
82641697 GM |
4759 | |
4760 | ||
177c0ea7 | 4761 | DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p, |
cdfaafa9 MB |
4762 | Sface_attribute_relative_p, |
4763 | 2, 2, 0, | |
4764 | doc: /* Return non-nil if face ATTRIBUTE VALUE is relative. */) | |
4765 | (attribute, value) | |
d0930289 | 4766 | Lisp_Object attribute, value; |
cdfaafa9 MB |
4767 | { |
4768 | if (EQ (value, Qunspecified)) | |
4769 | return Qt; | |
4770 | else if (EQ (attribute, QCheight)) | |
4771 | return INTEGERP (value) ? Qnil : Qt; | |
4772 | else | |
4773 | return Qnil; | |
4774 | } | |
4775 | ||
4776 | DEFUN ("merge-face-attribute", Fmerge_face_attribute, Smerge_face_attribute, | |
4777 | 3, 3, 0, | |
4778 | doc: /* Return face ATTRIBUTE VALUE1 merged with VALUE2. | |
4779 | If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then | |
4780 | the result will be absolute, otherwise it will be relative. */) | |
4781 | (attribute, value1, value2) | |
4782 | Lisp_Object attribute, value1, value2; | |
4783 | { | |
4784 | if (EQ (value1, Qunspecified)) | |
4785 | return value2; | |
4786 | else if (EQ (attribute, QCheight)) | |
e1e419ec | 4787 | return merge_face_heights (value1, value2, value1); |
cdfaafa9 MB |
4788 | else |
4789 | return value1; | |
4790 | } | |
4791 | ||
82641697 GM |
4792 | |
4793 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4794 | Sinternal_get_lisp_face_attribute, | |
4795 | 2, 3, 0, | |
7ee72033 | 4796 | doc: /* Return face attribute KEYWORD of face SYMBOL. |
228299fa GM |
4797 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid |
4798 | face attribute name, signal an error. | |
7fc92635 JB |
4799 | If the optional argument FRAME is given, report on face SYMBOL in that |
4800 | frame. If FRAME is t, report on the defaults for face SYMBOL (for new | |
7ee72033 MB |
4801 | frames). If FRAME is omitted or nil, use the selected frame. */) |
4802 | (symbol, keyword, frame) | |
82641697 GM |
4803 | Lisp_Object symbol, keyword, frame; |
4804 | { | |
4805 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4806 | |
b7826503 PJ |
4807 | CHECK_SYMBOL (symbol); |
4808 | CHECK_SYMBOL (keyword); | |
82641697 GM |
4809 | |
4810 | if (EQ (frame, Qt)) | |
4811 | lface = lface_from_face_name (NULL, symbol, 1); | |
4812 | else | |
4813 | { | |
4814 | if (NILP (frame)) | |
c0617987 | 4815 | frame = selected_frame; |
b7826503 | 4816 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4817 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); |
4818 | } | |
4819 | ||
4820 | if (EQ (keyword, QCfamily)) | |
4821 | value = LFACE_FAMILY (lface); | |
4822 | else if (EQ (keyword, QCheight)) | |
4823 | value = LFACE_HEIGHT (lface); | |
4824 | else if (EQ (keyword, QCweight)) | |
4825 | value = LFACE_WEIGHT (lface); | |
4826 | else if (EQ (keyword, QCslant)) | |
4827 | value = LFACE_SLANT (lface); | |
4828 | else if (EQ (keyword, QCunderline)) | |
4829 | value = LFACE_UNDERLINE (lface); | |
4830 | else if (EQ (keyword, QCoverline)) | |
4831 | value = LFACE_OVERLINE (lface); | |
4832 | else if (EQ (keyword, QCstrike_through)) | |
4833 | value = LFACE_STRIKE_THROUGH (lface); | |
4834 | else if (EQ (keyword, QCbox)) | |
4835 | value = LFACE_BOX (lface); | |
4836 | else if (EQ (keyword, QCinverse_video) | |
4837 | || EQ (keyword, QCreverse_video)) | |
4838 | value = LFACE_INVERSE (lface); | |
4839 | else if (EQ (keyword, QCforeground)) | |
4840 | value = LFACE_FOREGROUND (lface); | |
4841 | else if (EQ (keyword, QCbackground)) | |
4842 | value = LFACE_BACKGROUND (lface); | |
4843 | else if (EQ (keyword, QCstipple)) | |
4844 | value = LFACE_STIPPLE (lface); | |
4845 | else if (EQ (keyword, QCwidth)) | |
4846 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4847 | else if (EQ (keyword, QCinherit)) |
4848 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4849 | else if (EQ (keyword, QCfont)) |
4850 | value = LFACE_FONT (lface); | |
82641697 GM |
4851 | else |
4852 | signal_error ("Invalid face attribute name", keyword); | |
4853 | ||
4854 | return value; | |
4855 | } | |
4856 | ||
4857 | ||
4858 | DEFUN ("internal-lisp-face-attribute-values", | |
4859 | Finternal_lisp_face_attribute_values, | |
4860 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
7ee72033 MB |
4861 | doc: /* Return a list of valid discrete values for face attribute ATTR. |
4862 | Value is nil if ATTR doesn't have a discrete set of valid values. */) | |
4863 | (attr) | |
82641697 GM |
4864 | Lisp_Object attr; |
4865 | { | |
4866 | Lisp_Object result = Qnil; | |
178c5d9c | 4867 | |
b7826503 | 4868 | CHECK_SYMBOL (attr); |
178c5d9c | 4869 | |
82641697 GM |
4870 | if (EQ (attr, QCweight) |
4871 | || EQ (attr, QCslant) | |
4872 | || EQ (attr, QCwidth)) | |
4873 | { | |
4874 | /* Extract permissible symbols from tables. */ | |
4875 | struct table_entry *table; | |
4876 | int i, dim; | |
178c5d9c | 4877 | |
82641697 GM |
4878 | if (EQ (attr, QCweight)) |
4879 | table = weight_table, dim = DIM (weight_table); | |
4880 | else if (EQ (attr, QCslant)) | |
4881 | table = slant_table, dim = DIM (slant_table); | |
4882 | else | |
4883 | table = swidth_table, dim = DIM (swidth_table); | |
4884 | ||
4885 | for (i = 0; i < dim; ++i) | |
4886 | { | |
4887 | Lisp_Object symbol = *table[i].symbol; | |
4888 | Lisp_Object tail = result; | |
4889 | ||
4890 | while (!NILP (tail) | |
4891 | && !EQ (XCAR (tail), symbol)) | |
4892 | tail = XCDR (tail); | |
4893 | ||
4894 | if (NILP (tail)) | |
4895 | result = Fcons (symbol, result); | |
4896 | } | |
4897 | } | |
4898 | else if (EQ (attr, QCunderline)) | |
4899 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4900 | else if (EQ (attr, QCoverline)) | |
4901 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4902 | else if (EQ (attr, QCstrike_through)) | |
4903 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4904 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4905 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4906 | ||
4907 | return result; | |
4908 | } | |
178c5d9c | 4909 | |
82641697 GM |
4910 | |
4911 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4912 | Sinternal_merge_in_global_face, 2, 2, 0, |
e3cd9e7f | 4913 | doc: /* Add attributes from frame-default definition of FACE to FACE on FRAME. |
7ee72033 MB |
4914 | Default face attributes override any local face attributes. */) |
4915 | (face, frame) | |
82641697 GM |
4916 | Lisp_Object face, frame; |
4917 | { | |
aad40737 MB |
4918 | int i; |
4919 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4920 | ||
b7826503 | 4921 | CHECK_LIVE_FRAME (frame); |
82641697 GM |
4922 | global_lface = lface_from_face_name (NULL, face, 1); |
4923 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4924 | if (NILP (local_lface)) | |
4925 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4926 | |
cec33c90 SM |
4927 | /* Make every specified global attribute override the local one. |
4928 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4929 | the local frame is defined from default specs in `face-defface-spec' | |
4930 | and those should be overridden by global settings. Hence the strange | |
4931 | "global before local" priority. */ | |
aad40737 MB |
4932 | lvec = XVECTOR (local_lface)->contents; |
4933 | gvec = XVECTOR (global_lface)->contents; | |
4934 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4935 | if (! UNSPECIFIEDP (gvec[i])) | |
4936 | lvec[i] = gvec[i]; | |
334a2e2a GM |
4937 | |
4938 | return Qnil; | |
82641697 GM |
4939 | } |
4940 | ||
4941 | ||
4942 | /* The following function is implemented for compatibility with 20.2. | |
4943 | The function is used in x-resolve-fonts when it is asked to | |
4944 | return fonts with the same size as the font of a face. This is | |
4945 | done in fontset.el. */ | |
4946 | ||
178c5d9c | 4947 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
e3cd9e7f | 4948 | doc: /* Return the font name of face FACE, or nil if it is unspecified. |
228299fa GM |
4949 | If the optional argument FRAME is given, report on face FACE in that frame. |
4950 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
4951 | The font default for a face is either nil, or a list | |
4952 | of the form (bold), (italic) or (bold italic). | |
7ee72033 MB |
4953 | If FRAME is omitted or nil, use the selected frame. */) |
4954 | (face, frame) | |
82641697 GM |
4955 | Lisp_Object face, frame; |
4956 | { | |
4957 | if (EQ (frame, Qt)) | |
4958 | { | |
4959 | Lisp_Object result = Qnil; | |
4960 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4961 | ||
4962 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4963 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4964 | result = Fcons (Qbold, result); | |
178c5d9c | 4965 | |
0f2c6573 | 4966 | if (!UNSPECIFIEDP (LFACE_SLANT (lface)) |
82641697 GM |
4967 | && !EQ (LFACE_SLANT (lface), Qnormal)) |
4968 | result = Fcons (Qitalic, result); | |
178c5d9c | 4969 | |
82641697 GM |
4970 | return result; |
4971 | } | |
4972 | else | |
4973 | { | |
4974 | struct frame *f = frame_or_selected_frame (frame, 1); | |
2272e967 | 4975 | int face_id = lookup_named_face (f, face, 0, 1); |
82641697 | 4976 | struct face *face = FACE_FROM_ID (f, face_id); |
b5de343d | 4977 | return face ? build_string (face->font_name) : Qnil; |
82641697 GM |
4978 | } |
4979 | } | |
4980 | ||
4981 | ||
9717e36c | 4982 | /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if |
82641697 GM |
4983 | all attributes are `equal'. Tries to be fast because this function |
4984 | is called quite often. */ | |
4985 | ||
4986 | static INLINE int | |
9717e36c | 4987 | face_attr_equal_p (v1, v2) |
3ebc0939 | 4988 | Lisp_Object v1, v2; |
82641697 | 4989 | { |
9717e36c MB |
4990 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, |
4991 | and the other is specified. */ | |
4992 | if (XTYPE (v1) != XTYPE (v2)) | |
4993 | return 0; | |
82641697 | 4994 | |
9717e36c MB |
4995 | if (EQ (v1, v2)) |
4996 | return 1; | |
82641697 | 4997 | |
9717e36c MB |
4998 | switch (XTYPE (v1)) |
4999 | { | |
5000 | case Lisp_String: | |
5001 | if (SBYTES (v1) != SBYTES (v2)) | |
5002 | return 0; | |
82641697 | 5003 | |
9717e36c | 5004 | return bcmp (SDATA (v1), SDATA (v2), SBYTES (v1)) == 0; |
178c5d9c | 5005 | |
9717e36c MB |
5006 | case Lisp_Int: |
5007 | case Lisp_Symbol: | |
5008 | return 0; | |
178c5d9c | 5009 | |
9717e36c MB |
5010 | default: |
5011 | return !NILP (Fequal (v1, v2)); | |
82641697 | 5012 | } |
9717e36c MB |
5013 | } |
5014 | ||
5015 | ||
5016 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
5017 | all attributes are `equal'. Tries to be fast because this function | |
5018 | is called quite often. */ | |
5019 | ||
5020 | static INLINE int | |
5021 | lface_equal_p (v1, v2) | |
5022 | Lisp_Object *v1, *v2; | |
5023 | { | |
5024 | int i, equal_p = 1; | |
5025 | ||
5026 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
5027 | equal_p = face_attr_equal_p (v1[i], v2[i]); | |
178c5d9c | 5028 | |
82641697 GM |
5029 | return equal_p; |
5030 | } | |
5031 | ||
5032 | ||
5033 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
5034 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
7ee72033 | 5035 | doc: /* True if FACE1 and FACE2 are equal. |
03f11322 JB |
5036 | If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame. |
5037 | If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames). | |
7ee72033 MB |
5038 | If FRAME is omitted or nil, use the selected frame. */) |
5039 | (face1, face2, frame) | |
82641697 GM |
5040 | Lisp_Object face1, face2, frame; |
5041 | { | |
5042 | int equal_p; | |
5043 | struct frame *f; | |
5044 | Lisp_Object lface1, lface2; | |
178c5d9c | 5045 | |
82641697 GM |
5046 | if (EQ (frame, Qt)) |
5047 | f = NULL; | |
5048 | else | |
5049 | /* Don't use check_x_frame here because this function is called | |
5050 | before X frames exist. At that time, if FRAME is nil, | |
5051 | selected_frame will be used which is the frame dumped with | |
5052 | Emacs. That frame is not an X frame. */ | |
5053 | f = frame_or_selected_frame (frame, 2); | |
5054 | ||
03f11322 JB |
5055 | lface1 = lface_from_face_name (f, face1, 1); |
5056 | lface2 = lface_from_face_name (f, face2, 1); | |
82641697 GM |
5057 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, |
5058 | XVECTOR (lface2)->contents); | |
5059 | return equal_p ? Qt : Qnil; | |
5060 | } | |
5061 | ||
178c5d9c | 5062 | |
82641697 GM |
5063 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
5064 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
7ee72033 | 5065 | doc: /* True if FACE has no attribute specified. |
228299fa GM |
5066 | If the optional argument FRAME is given, report on face FACE in that frame. |
5067 | If FRAME is t, report on the defaults for face FACE (for new frames). | |
7ee72033 MB |
5068 | If FRAME is omitted or nil, use the selected frame. */) |
5069 | (face, frame) | |
82641697 GM |
5070 | Lisp_Object face, frame; |
5071 | { | |
5072 | struct frame *f; | |
5073 | Lisp_Object lface; | |
5074 | int i; | |
5075 | ||
5076 | if (NILP (frame)) | |
c0617987 | 5077 | frame = selected_frame; |
b7826503 | 5078 | CHECK_LIVE_FRAME (frame); |
c0617987 | 5079 | f = XFRAME (frame); |
178c5d9c | 5080 | |
82641697 GM |
5081 | if (EQ (frame, Qt)) |
5082 | lface = lface_from_face_name (NULL, face, 1); | |
5083 | else | |
5084 | lface = lface_from_face_name (f, face, 1); | |
5085 | ||
5086 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
a08332c0 | 5087 | if (!UNSPECIFIEDP (AREF (lface, i))) |
82641697 | 5088 | break; |
178c5d9c | 5089 | |
82641697 GM |
5090 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
5091 | } | |
5092 | ||
5093 | ||
5094 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 5095 | 0, 1, 0, |
7ee72033 MB |
5096 | doc: /* Return an alist of frame-local faces defined on FRAME. |
5097 | For internal use only. */) | |
5098 | (frame) | |
82641697 GM |
5099 | Lisp_Object frame; |
5100 | { | |
5101 | struct frame *f = frame_or_selected_frame (frame, 0); | |
5102 | return f->face_alist; | |
5103 | } | |
5104 | ||
5105 | ||
5106 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
5107 | below in computing a hash value for a Lisp face. */ | |
5108 | ||
5109 | static INLINE unsigned | |
5110 | hash_string_case_insensitive (string) | |
5111 | Lisp_Object string; | |
5112 | { | |
53c208f6 | 5113 | const unsigned char *s; |
82641697 GM |
5114 | unsigned hash = 0; |
5115 | xassert (STRINGP (string)); | |
d5db4077 | 5116 | for (s = SDATA (string); *s; ++s) |
82641697 GM |
5117 | hash = (hash << 1) ^ tolower (*s); |
5118 | return hash; | |
5119 | } | |
5120 | ||
5121 | ||
5122 | /* Return a hash code for face attribute vector V. */ | |
5123 | ||
5124 | static INLINE unsigned | |
5125 | lface_hash (v) | |
5126 | Lisp_Object *v; | |
5127 | { | |
5128 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
5129 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
5130 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
5131 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
5132 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
5133 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
5134 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
5135 | } | |
5136 | ||
5137 | ||
5138 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
5139 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
5140 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
5141 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
5142 | |
5143 | static INLINE int | |
5144 | lface_same_font_attributes_p (lface1, lface2) | |
5145 | Lisp_Object *lface1, *lface2; | |
5146 | { | |
5147 | xassert (lface_fully_specified_p (lface1) | |
5148 | && lface_fully_specified_p (lface2)); | |
d5db4077 KR |
5149 | return (xstricmp (SDATA (lface1[LFACE_FAMILY_INDEX]), |
5150 | SDATA (lface2[LFACE_FAMILY_INDEX])) == 0 | |
2c20458f | 5151 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 | 5152 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
a08332c0 | 5153 | && EQ (lface1[LFACE_AVGWIDTH_INDEX], lface2[LFACE_AVGWIDTH_INDEX]) |
82641697 | 5154 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) |
39506348 KH |
5155 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
5156 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
5157 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 5158 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
d5db4077 KR |
5159 | && xstricmp (SDATA (lface1[LFACE_FONT_INDEX]), |
5160 | SDATA (lface2[LFACE_FONT_INDEX]))))); | |
82641697 GM |
5161 | } |
5162 | ||
5163 | ||
5164 | \f | |
5165 | /*********************************************************************** | |
5166 | Realized Faces | |
5167 | ***********************************************************************/ | |
5168 | ||
5169 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 5170 | vector ATTR. */ |
82641697 GM |
5171 | |
5172 | static struct face * | |
39506348 | 5173 | make_realized_face (attr) |
82641697 | 5174 | Lisp_Object *attr; |
82641697 GM |
5175 | { |
5176 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
5177 | bzero (face, sizeof *face); | |
39506348 | 5178 | face->ascii_face = face; |
82641697 GM |
5179 | bcopy (attr, face->lface, sizeof face->lface); |
5180 | return face; | |
5181 | } | |
5182 | ||
5183 | ||
5184 | /* Free realized face FACE, including its X resources. FACE may | |
5185 | be null. */ | |
5186 | ||
5187 | static void | |
5188 | free_realized_face (f, face) | |
5189 | struct frame *f; | |
5190 | struct face *face; | |
5191 | { | |
5192 | if (face) | |
5193 | { | |
c3cee013 JR |
5194 | #ifdef HAVE_WINDOW_SYSTEM |
5195 | if (FRAME_WINDOW_P (f)) | |
82641697 | 5196 | { |
39506348 KH |
5197 | /* Free fontset of FACE if it is ASCII face. */ |
5198 | if (face->fontset >= 0 && face == face->ascii_face) | |
5199 | free_face_fontset (f, face); | |
82641697 GM |
5200 | if (face->gc) |
5201 | { | |
5202 | x_free_gc (f, face->gc); | |
5203 | face->gc = 0; | |
5204 | } | |
178c5d9c | 5205 | |
82641697 GM |
5206 | free_face_colors (f, face); |
5207 | x_destroy_bitmap (f, face->stipple); | |
5208 | } | |
c3cee013 | 5209 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5210 | |
5211 | xfree (face); | |
5212 | } | |
5213 | } | |
5214 | ||
5215 | ||
5216 | /* Prepare face FACE for subsequent display on frame F. This | |
5217 | allocated GCs if they haven't been allocated yet or have been freed | |
5218 | by clearing the face cache. */ | |
5219 | ||
5220 | void | |
5221 | prepare_face_for_display (f, face) | |
5222 | struct frame *f; | |
5223 | struct face *face; | |
5224 | { | |
c3cee013 JR |
5225 | #ifdef HAVE_WINDOW_SYSTEM |
5226 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 5227 | |
82641697 GM |
5228 | if (face->gc == 0) |
5229 | { | |
5230 | XGCValues xgcv; | |
5231 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
5232 | ||
5233 | xgcv.foreground = face->foreground; | |
5234 | xgcv.background = face->background; | |
c3cee013 | 5235 | #ifdef HAVE_X_WINDOWS |
82641697 | 5236 | xgcv.graphics_exposures = False; |
c3cee013 | 5237 | #endif |
82641697 GM |
5238 | /* The font of FACE may be null if we couldn't load it. */ |
5239 | if (face->font) | |
5240 | { | |
c3cee013 | 5241 | #ifdef HAVE_X_WINDOWS |
82641697 | 5242 | xgcv.font = face->font->fid; |
c3cee013 JR |
5243 | #endif |
5244 | #ifdef WINDOWSNT | |
5245 | xgcv.font = face->font; | |
1a578e9b | 5246 | #endif |
e0f712ba | 5247 | #ifdef MAC_OS |
1a578e9b | 5248 | xgcv.font = face->font; |
c3cee013 | 5249 | #endif |
82641697 GM |
5250 | mask |= GCFont; |
5251 | } | |
5252 | ||
5253 | BLOCK_INPUT; | |
c3cee013 | 5254 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
5255 | if (face->stipple) |
5256 | { | |
be8a72f4 | 5257 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
5258 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
5259 | mask |= GCFillStyle | GCStipple; | |
5260 | } | |
c3cee013 | 5261 | #endif |
82641697 GM |
5262 | face->gc = x_create_gc (f, mask, &xgcv); |
5263 | UNBLOCK_INPUT; | |
5264 | } | |
c3cee013 | 5265 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5266 | } |
5267 | ||
82641697 | 5268 | \f |
b35df831 MB |
5269 | /* Returns the `distance' between the colors X and Y. */ |
5270 | ||
5271 | static int | |
5272 | color_distance (x, y) | |
5273 | XColor *x, *y; | |
5274 | { | |
5275 | /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma. | |
5276 | Quoting from that paper: | |
5277 | ||
5278 | This formula has results that are very close to L*u*v* (with the | |
5279 | modified lightness curve) and, more importantly, it is a more even | |
5280 | algorithm: it does not have a range of colours where it suddenly | |
5281 | gives far from optimal results. | |
5282 | ||
5283 | See <http://www.compuphase.com/cmetric.htm> for more info. */ | |
5284 | ||
5285 | long r = (x->red - y->red) >> 8; | |
5286 | long g = (x->green - y->green) >> 8; | |
5287 | long b = (x->blue - y->blue) >> 8; | |
5288 | long r_mean = (x->red + y->red) >> 9; | |
5289 | ||
5290 | return | |
5291 | (((512 + r_mean) * r * r) >> 8) | |
5292 | + 4 * g * g | |
5293 | + (((767 - r_mean) * b * b) >> 8); | |
5294 | } | |
5295 | ||
5296 | ||
5297 | DEFUN ("color-distance", Fcolor_distance, Scolor_distance, 2, 3, 0, | |
5298 | doc: /* Return an integer distance between COLOR1 and COLOR2 on FRAME. | |
5299 | COLOR1 and COLOR2 may be either strings containing the color name, | |
5300 | or lists of the form (RED GREEN BLUE). | |
5301 | If FRAME is unspecified or nil, the current frame is used. */) | |
5302 | (color1, color2, frame) | |
5303 | Lisp_Object color1, color2, frame; | |
5304 | { | |
5305 | struct frame *f; | |
5306 | XColor cdef1, cdef2; | |
5307 | ||
5308 | if (NILP (frame)) | |
5309 | frame = selected_frame; | |
5310 | CHECK_LIVE_FRAME (frame); | |
5311 | f = XFRAME (frame); | |
5312 | ||
5313 | if ((CONSP (color1) && !parse_rgb_list (color1, &cdef1)) | |
5314 | || !STRINGP (color1) | |
d5db4077 | 5315 | || !defined_color (f, SDATA (color1), &cdef1, 0)) |
b35df831 MB |
5316 | signal_error ("Invalid color", color1); |
5317 | if ((CONSP (color2) && !parse_rgb_list (color2, &cdef2)) | |
5318 | || !STRINGP (color2) | |
d5db4077 | 5319 | || !defined_color (f, SDATA (color2), &cdef2, 0)) |
b35df831 MB |
5320 | signal_error ("Invalid color", color2); |
5321 | ||
5322 | return make_number (color_distance (&cdef1, &cdef2)); | |
5323 | } | |
5324 | ||
5325 | \f | |
82641697 GM |
5326 | /*********************************************************************** |
5327 | Face Cache | |
5328 | ***********************************************************************/ | |
5329 | ||
5330 | /* Return a new face cache for frame F. */ | |
5331 | ||
5332 | static struct face_cache * | |
5333 | make_face_cache (f) | |
5334 | struct frame *f; | |
5335 | { | |
5336 | struct face_cache *c; | |
5337 | int size; | |
5338 | ||
5339 | c = (struct face_cache *) xmalloc (sizeof *c); | |
5340 | bzero (c, sizeof *c); | |
5341 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5342 | c->buckets = (struct face **) xmalloc (size); | |
5343 | bzero (c->buckets, size); | |
5344 | c->size = 50; | |
5345 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
5346 | c->f = f; | |
ceeda019 | 5347 | c->menu_face_changed_p = menu_face_changed_default; |
82641697 GM |
5348 | return c; |
5349 | } | |
5350 | ||
5351 | ||
5352 | /* Clear out all graphics contexts for all realized faces, except for | |
5353 | the basic faces. This should be done from time to time just to avoid | |
5354 | keeping too many graphics contexts that are no longer needed. */ | |
5355 | ||
5356 | static void | |
5357 | clear_face_gcs (c) | |
5358 | struct face_cache *c; | |
5359 | { | |
c3cee013 | 5360 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 5361 | { |
c3cee013 | 5362 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5363 | int i; |
5364 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
5365 | { | |
5366 | struct face *face = c->faces_by_id[i]; | |
5367 | if (face && face->gc) | |
5368 | { | |
5369 | x_free_gc (c->f, face->gc); | |
5370 | face->gc = 0; | |
5371 | } | |
5372 | } | |
c3cee013 | 5373 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5374 | } |
5375 | } | |
5376 | ||
5377 | ||
7fc92635 JB |
5378 | /* Free all realized faces in face cache C, including basic faces. |
5379 | C may be null. If faces are freed, make sure the frame's current | |
82641697 GM |
5380 | matrix is marked invalid, so that a display caused by an expose |
5381 | event doesn't try to use faces we destroyed. */ | |
5382 | ||
5383 | static void | |
5384 | free_realized_faces (c) | |
5385 | struct face_cache *c; | |
5386 | { | |
5387 | if (c && c->used) | |
5388 | { | |
5389 | int i, size; | |
5390 | struct frame *f = c->f; | |
5391 | ||
84ec3b4b GM |
5392 | /* We must block input here because we can't process X events |
5393 | safely while only some faces are freed, or when the frame's | |
5394 | current matrix still references freed faces. */ | |
5395 | BLOCK_INPUT; | |
5396 | ||
82641697 GM |
5397 | for (i = 0; i < c->used; ++i) |
5398 | { | |
5399 | free_realized_face (f, c->faces_by_id[i]); | |
5400 | c->faces_by_id[i] = NULL; | |
5401 | } | |
178c5d9c | 5402 | |
82641697 GM |
5403 | c->used = 0; |
5404 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
5405 | bzero (c->buckets, size); | |
5406 | ||
5407 | /* Must do a thorough redisplay the next time. Mark current | |
5408 | matrices as invalid because they will reference faces freed | |
5409 | above. This function is also called when a frame is | |
5410 | destroyed. In this case, the root window of F is nil. */ | |
5411 | if (WINDOWP (f->root_window)) | |
5412 | { | |
5413 | clear_current_matrices (f); | |
5414 | ++windows_or_buffers_changed; | |
5415 | } | |
84ec3b4b GM |
5416 | |
5417 | UNBLOCK_INPUT; | |
82641697 GM |
5418 | } |
5419 | } | |
5420 | ||
5421 | ||
39506348 KH |
5422 | /* Free all faces realized for multibyte characters on frame F that |
5423 | has FONTSET. */ | |
5424 | ||
5425 | void | |
5426 | free_realized_multibyte_face (f, fontset) | |
5427 | struct frame *f; | |
5428 | int fontset; | |
5429 | { | |
5430 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5431 | struct face *face; | |
5432 | int i; | |
5433 | ||
84ec3b4b GM |
5434 | /* We must block input here because we can't process X events safely |
5435 | while only some faces are freed, or when the frame's current | |
5436 | matrix still references freed faces. */ | |
5437 | BLOCK_INPUT; | |
178c5d9c | 5438 | |
39506348 KH |
5439 | for (i = 0; i < cache->used; i++) |
5440 | { | |
5441 | face = cache->faces_by_id[i]; | |
5442 | if (face | |
5443 | && face != face->ascii_face | |
5444 | && face->fontset == fontset) | |
5445 | { | |
5446 | uncache_face (cache, face); | |
5447 | free_realized_face (f, face); | |
5448 | } | |
5449 | } | |
178c5d9c | 5450 | |
84ec3b4b GM |
5451 | /* Must do a thorough redisplay the next time. Mark current |
5452 | matrices as invalid because they will reference faces freed | |
5453 | above. This function is also called when a frame is destroyed. | |
5454 | In this case, the root window of F is nil. */ | |
39506348 KH |
5455 | if (WINDOWP (f->root_window)) |
5456 | { | |
5457 | clear_current_matrices (f); | |
5458 | ++windows_or_buffers_changed; | |
5459 | } | |
178c5d9c | 5460 | |
84ec3b4b | 5461 | UNBLOCK_INPUT; |
39506348 KH |
5462 | } |
5463 | ||
5464 | ||
82641697 GM |
5465 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5466 | This is done after attributes of a named face have been changed, | |
5467 | because we can't tell which realized faces depend on that face. */ | |
5468 | ||
5469 | void | |
5470 | free_all_realized_faces (frame) | |
5471 | Lisp_Object frame; | |
5472 | { | |
5473 | if (NILP (frame)) | |
5474 | { | |
5475 | Lisp_Object rest; | |
5476 | FOR_EACH_FRAME (rest, frame) | |
5477 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5478 | } | |
5479 | else | |
5480 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5481 | } | |
5482 | ||
5483 | ||
5484 | /* Free face cache C and faces in it, including their X resources. */ | |
5485 | ||
5486 | static void | |
5487 | free_face_cache (c) | |
5488 | struct face_cache *c; | |
5489 | { | |
5490 | if (c) | |
5491 | { | |
5492 | free_realized_faces (c); | |
5493 | xfree (c->buckets); | |
5494 | xfree (c->faces_by_id); | |
5495 | xfree (c); | |
5496 | } | |
5497 | } | |
5498 | ||
5499 | ||
5500 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5501 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5502 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5503 | otherwise lookup_face would find FACE for every character, even if |
5504 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5505 | |
5506 | static void | |
5507 | cache_face (c, face, hash) | |
5508 | struct face_cache *c; | |
5509 | struct face *face; | |
5510 | unsigned hash; | |
5511 | { | |
5512 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5513 | ||
5514 | face->hash = hash; | |
5515 | ||
5516 | if (face->fontset >= 0) | |
5517 | { | |
5518 | struct face *last = c->buckets[i]; | |
5519 | if (last) | |
5520 | { | |
5521 | while (last->next) | |
5522 | last = last->next; | |
5523 | last->next = face; | |
5524 | face->prev = last; | |
5525 | face->next = NULL; | |
5526 | } | |
5527 | else | |
5528 | { | |
5529 | c->buckets[i] = face; | |
5530 | face->prev = face->next = NULL; | |
5531 | } | |
5532 | } | |
5533 | else | |
5534 | { | |
5535 | face->prev = NULL; | |
5536 | face->next = c->buckets[i]; | |
5537 | if (face->next) | |
5538 | face->next->prev = face; | |
5539 | c->buckets[i] = face; | |
5540 | } | |
5541 | ||
5542 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5543 | slot as FACE->id. */ | |
5544 | for (i = 0; i < c->used; ++i) | |
5545 | if (c->faces_by_id[i] == NULL) | |
5546 | break; | |
5547 | face->id = i; | |
178c5d9c | 5548 | |
82641697 | 5549 | /* Maybe enlarge C->faces_by_id. */ |
d7078aef | 5550 | if (i == c->used) |
82641697 | 5551 | { |
d7078aef KS |
5552 | if (c->used == c->size) |
5553 | { | |
5554 | int new_size, sz; | |
5555 | new_size = min (2 * c->size, MAX_FACE_ID); | |
5556 | if (new_size == c->size) | |
5557 | abort (); /* Alternatives? ++kfs */ | |
5558 | sz = new_size * sizeof *c->faces_by_id; | |
5559 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5560 | c->size = new_size; | |
5561 | } | |
5562 | c->used++; | |
82641697 GM |
5563 | } |
5564 | ||
5565 | #if GLYPH_DEBUG | |
5566 | /* Check that FACE got a unique id. */ | |
5567 | { | |
5568 | int j, n; | |
5569 | struct face *face; | |
5570 | ||
5571 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5572 | for (face = c->buckets[j]; face; face = face->next) | |
5573 | if (face->id == i) | |
5574 | ++n; | |
5575 | ||
5576 | xassert (n == 1); | |
5577 | } | |
5578 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5579 | |
82641697 | 5580 | c->faces_by_id[i] = face; |
82641697 GM |
5581 | } |
5582 | ||
5583 | ||
5584 | /* Remove face FACE from cache C. */ | |
5585 | ||
5586 | static void | |
5587 | uncache_face (c, face) | |
5588 | struct face_cache *c; | |
5589 | struct face *face; | |
5590 | { | |
5591 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5592 | |
82641697 GM |
5593 | if (face->prev) |
5594 | face->prev->next = face->next; | |
5595 | else | |
5596 | c->buckets[i] = face->next; | |
178c5d9c | 5597 | |
82641697 GM |
5598 | if (face->next) |
5599 | face->next->prev = face->prev; | |
178c5d9c | 5600 | |
82641697 GM |
5601 | c->faces_by_id[face->id] = NULL; |
5602 | if (face->id == c->used) | |
5603 | --c->used; | |
5604 | } | |
5605 | ||
5606 | ||
5607 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5608 | of frame F. The face will be used to display character C. Value |
5609 | is the ID of the face found. If no suitable face is found, realize | |
5610 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5611 | is a face that has the same attributes. */ |
82641697 GM |
5612 | |
5613 | INLINE int | |
39506348 | 5614 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5615 | struct frame *f; |
5616 | Lisp_Object *attr; | |
39506348 KH |
5617 | int c; |
5618 | struct face *base_face; | |
82641697 | 5619 | { |
39506348 | 5620 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5621 | unsigned hash; |
5622 | int i; | |
5623 | struct face *face; | |
5624 | ||
39506348 | 5625 | xassert (cache != NULL); |
82641697 GM |
5626 | check_lface_attrs (attr); |
5627 | ||
5628 | /* Look up ATTR in the face cache. */ | |
5629 | hash = lface_hash (attr); | |
5630 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5631 | |
39506348 | 5632 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5633 | if (face->hash == hash |
44747bd0 | 5634 | && (!FRAME_WINDOW_P (f) |
39506348 | 5635 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5636 | && lface_equal_p (face->lface, attr)) |
5637 | break; | |
5638 | ||
5639 | /* If not found, realize a new face. */ | |
5640 | if (face == NULL) | |
39506348 | 5641 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5642 | |
5643 | #if GLYPH_DEBUG | |
5644 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5645 | |
5646 | /* When this function is called from face_for_char (in this case, C is | |
5647 | a multibyte character), a fontset of a face returned by | |
5648 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5649 | C) is not sutisfied. The fontset is set for this face by | |
5650 | face_for_char later. */ | |
c87a1fda | 5651 | #if 0 |
c3cee013 | 5652 | if (FRAME_WINDOW_P (f)) |
39506348 | 5653 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5654 | #endif |
82641697 | 5655 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5656 | |
82641697 GM |
5657 | return face->id; |
5658 | } | |
5659 | ||
5660 | ||
5661 | /* Return the face id of the realized face for named face SYMBOL on | |
b5de343d GM |
5662 | frame F suitable for displaying character C. Value is -1 if the |
5663 | face couldn't be determined, which might happen if the default face | |
5664 | isn't realized and cannot be realized. */ | |
82641697 GM |
5665 | |
5666 | int | |
2272e967 | 5667 | lookup_named_face (f, symbol, c, signal_p) |
82641697 GM |
5668 | struct frame *f; |
5669 | Lisp_Object symbol; | |
39506348 | 5670 | int c; |
2272e967 | 5671 | int signal_p; |
82641697 GM |
5672 | { |
5673 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5674 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5675 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5676 | ||
b5de343d GM |
5677 | if (default_face == NULL) |
5678 | { | |
5679 | if (!realize_basic_faces (f)) | |
5680 | return -1; | |
5681 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5682 | } | |
5683 | ||
2272e967 KS |
5684 | if (!get_lface_attributes (f, symbol, symbol_attrs, signal_p)) |
5685 | return -1; | |
5686 | ||
82641697 | 5687 | bcopy (default_face->lface, attrs, sizeof attrs); |
a0a23346 MB |
5688 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
5689 | ||
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]; | |
2272e967 | 5707 | face_id = lookup_named_face (f, face_name, 0, 1); |
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 | |
d196a547 | 5813 | lookup_derived_face (f, symbol, c, face_id, signal_p) |
44747bd0 EZ |
5814 | struct frame *f; |
5815 | Lisp_Object symbol; | |
39506348 | 5816 | int c; |
44747bd0 | 5817 | int face_id; |
43f15d4a | 5818 | int signal_p; |
44747bd0 EZ |
5819 | { |
5820 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5821 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5822 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5823 | ||
5824 | if (!default_face) | |
5825 | abort (); | |
5826 | ||
d196a547 | 5827 | get_lface_attributes (f, symbol, symbol_attrs, signal_p); |
44747bd0 | 5828 | bcopy (default_face->lface, attrs, sizeof attrs); |
a0a23346 | 5829 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
39506348 | 5830 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5831 | } |
5832 | ||
f6608d5c RS |
5833 | DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector, |
5834 | Sface_attributes_as_vector, 1, 1, 0, | |
4bb962be | 5835 | doc: /* Return a vector of face attributes corresponding to PLIST. */) |
f6608d5c RS |
5836 | (plist) |
5837 | Lisp_Object plist; | |
5838 | { | |
5839 | Lisp_Object lface; | |
5840 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
5841 | Qunspecified); | |
a0a23346 MB |
5842 | merge_face_ref (XFRAME (selected_frame), plist, XVECTOR (lface)->contents, |
5843 | 1, 0); | |
f6608d5c RS |
5844 | return lface; |
5845 | } | |
5846 | ||
82641697 GM |
5847 | |
5848 | \f | |
9717e36c MB |
5849 | /*********************************************************************** |
5850 | Face capability testing | |
5851 | ***********************************************************************/ | |
5852 | ||
5853 | ||
5854 | /* If the distance (as returned by color_distance) between two colors is | |
5855 | less than this, then they are considered the same, for determining | |
5856 | whether a color is supported or not. The range of values is 0-65535. */ | |
5857 | ||
5858 | #define TTY_SAME_COLOR_THRESHOLD 10000 | |
5859 | ||
ccda4e3c | 5860 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c MB |
5861 | |
5862 | /* Return non-zero if all the face attributes in ATTRS are supported | |
5863 | on the window-system frame F. | |
5864 | ||
5865 | The definition of `supported' is somewhat heuristic, but basically means | |
5866 | that a face containing all the attributes in ATTRS, when merged with the | |
5867 | default face for display, can be represented in a way that's | |
5868 | ||
5869 | \(1) different in appearance than the default face, and | |
8e330b22 | 5870 | \(2) `close in spirit' to what the attributes specify, if not exact. */ |
9717e36c MB |
5871 | |
5872 | static int | |
8e330b22 | 5873 | x_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
5874 | struct frame *f; |
5875 | Lisp_Object *attrs; | |
8e330b22 | 5876 | struct face *def_face; |
9717e36c | 5877 | { |
8e330b22 | 5878 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c MB |
5879 | |
5880 | /* Check that other specified attributes are different that the default | |
5881 | face. */ | |
5882 | if ((!UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
5883 | && face_attr_equal_p (attrs[LFACE_UNDERLINE_INDEX], | |
5884 | def_attrs[LFACE_UNDERLINE_INDEX])) | |
5885 | || (!UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
5886 | && face_attr_equal_p (attrs[LFACE_INVERSE_INDEX], | |
5887 | def_attrs[LFACE_INVERSE_INDEX])) | |
5888 | || (!UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
5889 | && face_attr_equal_p (attrs[LFACE_FOREGROUND_INDEX], | |
5890 | def_attrs[LFACE_FOREGROUND_INDEX])) | |
5891 | || (!UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
5892 | && face_attr_equal_p (attrs[LFACE_BACKGROUND_INDEX], | |
5893 | def_attrs[LFACE_BACKGROUND_INDEX])) | |
5894 | || (!UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
5895 | && face_attr_equal_p (attrs[LFACE_STIPPLE_INDEX], | |
5896 | def_attrs[LFACE_STIPPLE_INDEX])) | |
5897 | || (!UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
5898 | && face_attr_equal_p (attrs[LFACE_OVERLINE_INDEX], | |
5899 | def_attrs[LFACE_OVERLINE_INDEX])) | |
5900 | || (!UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
5901 | && face_attr_equal_p (attrs[LFACE_STRIKE_THROUGH_INDEX], | |
5902 | def_attrs[LFACE_STRIKE_THROUGH_INDEX])) | |
5903 | || (!UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
5904 | && face_attr_equal_p (attrs[LFACE_BOX_INDEX], | |
5905 | def_attrs[LFACE_BOX_INDEX]))) | |
5906 | return 0; | |
5907 | ||
5908 | /* Check font-related attributes, as those are the most commonly | |
5909 | "unsupported" on a window-system (because of missing fonts). */ | |
5910 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
5911 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
5912 | || !UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
5913 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
5914 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
5915 | || !UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX])) | |
5916 | { | |
5917 | struct face *face; | |
5918 | Lisp_Object merged_attrs[LFACE_VECTOR_SIZE]; | |
5919 | ||
5920 | bcopy (def_attrs, merged_attrs, sizeof merged_attrs); | |
5921 | ||
a0a23346 | 5922 | merge_face_vectors (f, attrs, merged_attrs, 0); |
9717e36c MB |
5923 | |
5924 | face = FACE_FROM_ID (f, lookup_face (f, merged_attrs, 0, 0)); | |
5925 | ||
5926 | if (! face) | |
2010ba8c | 5927 | error ("Cannot make face"); |
9717e36c MB |
5928 | |
5929 | /* If the font is the same, then not supported. */ | |
5930 | if (face->font == def_face->font) | |
5931 | return 0; | |
5932 | } | |
5933 | ||
5934 | /* Everything checks out, this face is supported. */ | |
5935 | return 1; | |
5936 | } | |
5937 | ||
ccda4e3c | 5938 | #endif /* HAVE_WINDOW_SYSTEM */ |
9717e36c MB |
5939 | |
5940 | /* Return non-zero if all the face attributes in ATTRS are supported | |
5941 | on the tty frame F. | |
5942 | ||
5943 | The definition of `supported' is somewhat heuristic, but basically means | |
5944 | that a face containing all the attributes in ATTRS, when merged | |
5945 | with the default face for display, can be represented in a way that's | |
5946 | ||
5947 | \(1) different in appearance than the default face, and | |
5948 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
5949 | ||
5950 | Point (2) implies that a `:weight black' attribute will be satisfied | |
5951 | by any terminal that can display bold, and a `:foreground "yellow"' as | |
5952 | long as the terminal can display a yellowish color, but `:slant italic' | |
5953 | will _not_ be satisfied by the tty display code's automatic | |
5954 | substitution of a `dim' face for italic. */ | |
5955 | ||
5956 | static int | |
8e330b22 | 5957 | tty_supports_face_attributes_p (f, attrs, def_face) |
9717e36c MB |
5958 | struct frame *f; |
5959 | Lisp_Object *attrs; | |
8e330b22 | 5960 | struct face *def_face; |
9717e36c | 5961 | { |
734e9514 | 5962 | int weight; |
9717e36c MB |
5963 | Lisp_Object val, fg, bg; |
5964 | XColor fg_tty_color, fg_std_color; | |
5965 | XColor bg_tty_color, bg_std_color; | |
5966 | unsigned test_caps = 0; | |
8e330b22 | 5967 | Lisp_Object *def_attrs = def_face->lface; |
9717e36c | 5968 | |
9717e36c | 5969 | |
8e330b22 MB |
5970 | /* First check some easy-to-check stuff; ttys support none of the |
5971 | following attributes, so we can just return false if any are requested | |
5972 | (even if `nominal' values are specified, we should still return false, | |
5973 | as that will be the same value that the default face uses). We | |
5974 | consider :slant unsupportable on ttys, even though the face code | |
5975 | actually `fakes' them using a dim attribute if possible. This is | |
5976 | because the faked result is too different from what the face | |
5977 | specifies. */ | |
5978 | if (!UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
5979 | || !UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
5980 | || !UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
5981 | || !UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
5982 | || !UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
5983 | || !UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
5984 | || !UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
5985 | || !UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX])) | |
9717e36c MB |
5986 | return 0; |
5987 | ||
5988 | ||
5989 | /* Test for terminal `capabilities' (non-color character attributes). */ | |
5990 | ||
5991 | /* font weight (bold/dim) */ | |
5992 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5993 | if (weight >= 0) | |
5994 | { | |
8e330b22 MB |
5995 | int def_weight = face_numeric_weight (def_attrs[LFACE_WEIGHT_INDEX]); |
5996 | ||
9717e36c | 5997 | if (weight > XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
5998 | { |
5999 | if (def_weight > XLFD_WEIGHT_MEDIUM) | |
6000 | return 0; /* same as default */ | |
6001 | test_caps = TTY_CAP_BOLD; | |
6002 | } | |
9717e36c | 6003 | else if (weight < XLFD_WEIGHT_MEDIUM) |
8e330b22 MB |
6004 | { |
6005 | if (def_weight < XLFD_WEIGHT_MEDIUM) | |
6006 | return 0; /* same as default */ | |
6007 | test_caps = TTY_CAP_DIM; | |
6008 | } | |
6009 | else if (def_weight == XLFD_WEIGHT_MEDIUM) | |
6010 | return 0; /* same as default */ | |
9717e36c MB |
6011 | } |
6012 | ||
6013 | /* underlining */ | |
6014 | val = attrs[LFACE_UNDERLINE_INDEX]; | |
8e330b22 | 6015 | if (!UNSPECIFIEDP (val)) |
9717e36c MB |
6016 | { |
6017 | if (STRINGP (val)) | |
8e330b22 MB |
6018 | return 0; /* ttys can't use colored underlines */ |
6019 | else if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6020 | return 0; /* same as default */ | |
9717e36c MB |
6021 | else |
6022 | test_caps |= TTY_CAP_UNDERLINE; | |
6023 | } | |
6024 | ||
6025 | /* inverse video */ | |
6026 | val = attrs[LFACE_INVERSE_INDEX]; | |
8e330b22 MB |
6027 | if (!UNSPECIFIEDP (val)) |
6028 | { | |
6029 | if (face_attr_equal_p (val, def_attrs[LFACE_UNDERLINE_INDEX])) | |
6030 | return 0; /* same as default */ | |
6031 | else | |
6032 | test_caps |= TTY_CAP_INVERSE; | |
6033 | } | |
9717e36c MB |
6034 | |
6035 | ||
6036 | /* Color testing. */ | |
6037 | ||
6038 | /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since | |
6039 | we use them when calling `tty_capable_p' below, even if the face | |
6040 | specifies no colors. */ | |
6041 | fg_tty_color.pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6042 | bg_tty_color.pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6043 | ||
6044 | /* Check if foreground color is close enough. */ | |
6045 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
6046 | if (STRINGP (fg)) | |
6047 | { | |
8e330b22 MB |
6048 | Lisp_Object def_fg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6049 | ||
6050 | if (face_attr_equal_p (fg, def_fg)) | |
6051 | return 0; /* same as default */ | |
6052 | else if (! tty_lookup_color (f, fg, &fg_tty_color, &fg_std_color)) | |
6053 | return 0; /* not a valid color */ | |
9717e36c MB |
6054 | else if (color_distance (&fg_tty_color, &fg_std_color) |
6055 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6056 | return 0; /* displayed color is too different */ |
6057 | else | |
6058 | /* Make sure the color is really different than the default. */ | |
6059 | { | |
6060 | XColor def_fg_color; | |
6061 | if (tty_lookup_color (f, def_fg, &def_fg_color, 0) | |
6062 | && (color_distance (&fg_tty_color, &def_fg_color) | |
6063 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6064 | return 0; | |
6065 | } | |
9717e36c MB |
6066 | } |
6067 | ||
6068 | /* Check if background color is close enough. */ | |
6069 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
6070 | if (STRINGP (bg)) | |
6071 | { | |
8e330b22 MB |
6072 | Lisp_Object def_bg = def_attrs[LFACE_FOREGROUND_INDEX]; |
6073 | ||
6074 | if (face_attr_equal_p (bg, def_bg)) | |
6075 | return 0; /* same as default */ | |
6076 | else if (! tty_lookup_color (f, bg, &bg_tty_color, &bg_std_color)) | |
6077 | return 0; /* not a valid color */ | |
9717e36c MB |
6078 | else if (color_distance (&bg_tty_color, &bg_std_color) |
6079 | > TTY_SAME_COLOR_THRESHOLD) | |
8e330b22 MB |
6080 | return 0; /* displayed color is too different */ |
6081 | else | |
6082 | /* Make sure the color is really different than the default. */ | |
6083 | { | |
6084 | XColor def_bg_color; | |
6085 | if (tty_lookup_color (f, def_bg, &def_bg_color, 0) | |
6086 | && (color_distance (&bg_tty_color, &def_bg_color) | |
6087 | <= TTY_SAME_COLOR_THRESHOLD)) | |
6088 | return 0; | |
6089 | } | |
9717e36c MB |
6090 | } |
6091 | ||
6092 | /* If both foreground and background are requested, see if the | |
6093 | distance between them is OK. We just check to see if the distance | |
6094 | between the tty's foreground and background is close enough to the | |
6095 | distance between the standard foreground and background. */ | |
6096 | if (STRINGP (fg) && STRINGP (bg)) | |
6097 | { | |
6098 | int delta_delta | |
6099 | = (color_distance (&fg_std_color, &bg_std_color) | |
6100 | - color_distance (&fg_tty_color, &bg_tty_color)); | |
6101 | if (delta_delta > TTY_SAME_COLOR_THRESHOLD | |
6102 | || delta_delta < -TTY_SAME_COLOR_THRESHOLD) | |
6103 | return 0; | |
6104 | } | |
6105 | ||
6106 | ||
6107 | /* See if the capabilities we selected above are supported, with the | |
6108 | given colors. */ | |
6109 | if (test_caps != 0 && | |
6110 | ! tty_capable_p (f, test_caps, fg_tty_color.pixel, bg_tty_color.pixel)) | |
6111 | return 0; | |
6112 | ||
6113 | ||
6114 | /* Hmmm, everything checks out, this terminal must support this face. */ | |
6115 | return 1; | |
6116 | } | |
6117 | ||
6118 | ||
6119 | DEFUN ("display-supports-face-attributes-p", | |
6120 | Fdisplay_supports_face_attributes_p, Sdisplay_supports_face_attributes_p, | |
6121 | 1, 2, 0, | |
6122 | doc: /* Return non-nil if all the face attributes in ATTRIBUTES are supported. | |
6123 | The optional argument DISPLAY can be a display name, a frame, or | |
9fed2905 | 6124 | nil (meaning the selected frame's display). |
9717e36c MB |
6125 | |
6126 | The definition of `supported' is somewhat heuristic, but basically means | |
6127 | that a face containing all the attributes in ATTRIBUTES, when merged | |
6128 | with the default face for display, can be represented in a way that's | |
6129 | ||
6130 | \(1) different in appearance than the default face, and | |
6131 | \(2) `close in spirit' to what the attributes specify, if not exact. | |
6132 | ||
6133 | Point (2) implies that a `:weight black' attribute will be satisfied by | |
6134 | any display that can display bold, and a `:foreground \"yellow\"' as long | |
6135 | as it can display a yellowish color, but `:slant italic' will _not_ be | |
6136 | satisfied by the tty display code's automatic substitution of a `dim' | |
9fed2905 | 6137 | face for italic. */) |
9717e36c MB |
6138 | (attributes, display) |
6139 | Lisp_Object attributes, display; | |
6140 | { | |
6141 | int supports, i; | |
6142 | Lisp_Object frame; | |
6143 | struct frame *f; | |
8e330b22 | 6144 | struct face *def_face; |
9717e36c MB |
6145 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6146 | ||
0722292b MB |
6147 | if (noninteractive || !initialized) |
6148 | /* We may not be able to access low-level face information in batch | |
6149 | mode, or before being dumped, and this function is not going to | |
6150 | be very useful in those cases anyway, so just give up. */ | |
6151 | return Qnil; | |
6152 | ||
9717e36c MB |
6153 | if (NILP (display)) |
6154 | frame = selected_frame; | |
6155 | else if (FRAMEP (display)) | |
6156 | frame = display; | |
6157 | else | |
6158 | { | |
6159 | /* Find any frame on DISPLAY. */ | |
6160 | Lisp_Object fl_tail; | |
6161 | ||
6162 | frame = Qnil; | |
6163 | for (fl_tail = Vframe_list; CONSP (fl_tail); fl_tail = XCDR (fl_tail)) | |
6164 | { | |
6165 | frame = XCAR (fl_tail); | |
6166 | if (!NILP (Fequal (Fcdr (Fassq (Qdisplay, | |
6167 | XFRAME (frame)->param_alist)), | |
6168 | display))) | |
6169 | break; | |
6170 | } | |
6171 | } | |
6172 | ||
6173 | CHECK_LIVE_FRAME (frame); | |
6174 | f = XFRAME (frame); | |
6175 | ||
6176 | for (i = 0; i < LFACE_VECTOR_SIZE; i++) | |
6177 | attrs[i] = Qunspecified; | |
a0a23346 | 6178 | merge_face_ref (f, attributes, attrs, 1, 0); |
9717e36c | 6179 | |
8e330b22 MB |
6180 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6181 | if (def_face == NULL) | |
6182 | { | |
6183 | if (! realize_basic_faces (f)) | |
734e9514 | 6184 | error ("Cannot realize default face"); |
8e330b22 MB |
6185 | def_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6186 | } | |
6187 | ||
9717e36c MB |
6188 | /* Dispatch to the appropriate handler. */ |
6189 | if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) | |
8e330b22 | 6190 | supports = tty_supports_face_attributes_p (f, attrs, def_face); |
ccda4e3c | 6191 | #ifdef HAVE_WINDOW_SYSTEM |
9717e36c | 6192 | else |
8e330b22 MB |
6193 | supports = x_supports_face_attributes_p (f, attrs, def_face); |
6194 | #endif | |
9717e36c MB |
6195 | |
6196 | return supports ? Qt : Qnil; | |
6197 | } | |
6198 | ||
6199 | \f | |
82641697 GM |
6200 | /*********************************************************************** |
6201 | Font selection | |
6202 | ***********************************************************************/ | |
6203 | ||
6204 | DEFUN ("internal-set-font-selection-order", | |
6205 | Finternal_set_font_selection_order, | |
6206 | Sinternal_set_font_selection_order, 1, 1, 0, | |
7ee72033 | 6207 | doc: /* Set font selection order for face font selection to ORDER. |
228299fa GM |
6208 | ORDER must be a list of length 4 containing the symbols `:width', |
6209 | `:height', `:weight', and `:slant'. Face attributes appearing | |
6210 | first in ORDER are matched first, e.g. if `:height' appears before | |
6211 | `:weight' in ORDER, font selection first tries to find a font with | |
6212 | a suitable height, and then tries to match the font weight. | |
7ee72033 MB |
6213 | Value is ORDER. */) |
6214 | (order) | |
228299fa | 6215 | Lisp_Object order; |
82641697 GM |
6216 | { |
6217 | Lisp_Object list; | |
6218 | int i; | |
a08332c0 | 6219 | int indices[DIM (font_sort_order)]; |
178c5d9c | 6220 | |
b7826503 | 6221 | CHECK_LIST (order); |
82641697 GM |
6222 | bzero (indices, sizeof indices); |
6223 | i = 0; | |
6224 | ||
6225 | for (list = order; | |
6226 | CONSP (list) && i < DIM (indices); | |
6227 | list = XCDR (list), ++i) | |
6228 | { | |
6229 | Lisp_Object attr = XCAR (list); | |
6230 | int xlfd; | |
6231 | ||
6232 | if (EQ (attr, QCwidth)) | |
6233 | xlfd = XLFD_SWIDTH; | |
6234 | else if (EQ (attr, QCheight)) | |
6235 | xlfd = XLFD_POINT_SIZE; | |
6236 | else if (EQ (attr, QCweight)) | |
6237 | xlfd = XLFD_WEIGHT; | |
6238 | else if (EQ (attr, QCslant)) | |
6239 | xlfd = XLFD_SLANT; | |
6240 | else | |
6241 | break; | |
6242 | ||
6243 | if (indices[i] != 0) | |
6244 | break; | |
6245 | indices[i] = xlfd; | |
6246 | } | |
6247 | ||
a08332c0 | 6248 | if (!NILP (list) || i != DIM (indices)) |
82641697 | 6249 | signal_error ("Invalid font sort order", order); |
a08332c0 GM |
6250 | for (i = 0; i < DIM (font_sort_order); ++i) |
6251 | if (indices[i] == 0) | |
6252 | signal_error ("Invalid font sort order", order); | |
82641697 GM |
6253 | |
6254 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
6255 | { | |
6256 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
6257 | free_all_realized_faces (Qnil); | |
6258 | } | |
178c5d9c | 6259 | |
82641697 GM |
6260 | return Qnil; |
6261 | } | |
6262 | ||
6263 | ||
6264 | DEFUN ("internal-set-alternative-font-family-alist", | |
6265 | Finternal_set_alternative_font_family_alist, | |
6266 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
c71f3632 | 6267 | doc: /* Define alternative font families to try in face font selection. |
228299fa GM |
6268 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6269 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can | |
7ee72033 MB |
6270 | be found. Value is ALIST. */) |
6271 | (alist) | |
82641697 GM |
6272 | Lisp_Object alist; |
6273 | { | |
b7826503 | 6274 | CHECK_LIST (alist); |
82641697 GM |
6275 | Vface_alternative_font_family_alist = alist; |
6276 | free_all_realized_faces (Qnil); | |
6277 | return alist; | |
6278 | } | |
6279 | ||
6280 | ||
32fcc231 GM |
6281 | DEFUN ("internal-set-alternative-font-registry-alist", |
6282 | Finternal_set_alternative_font_registry_alist, | |
6283 | Sinternal_set_alternative_font_registry_alist, 1, 1, 0, | |
e3cd9e7f | 6284 | doc: /* Define alternative font registries to try in face font selection. |
228299fa GM |
6285 | ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries. |
6286 | Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can | |
7ee72033 MB |
6287 | be found. Value is ALIST. */) |
6288 | (alist) | |
32fcc231 GM |
6289 | Lisp_Object alist; |
6290 | { | |
b7826503 | 6291 | CHECK_LIST (alist); |
32fcc231 GM |
6292 | Vface_alternative_font_registry_alist = alist; |
6293 | free_all_realized_faces (Qnil); | |
6294 | return alist; | |
6295 | } | |
6296 | ||
6297 | ||
c3cee013 | 6298 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6299 | |
82641697 GM |
6300 | /* Value is non-zero if FONT is the name of a scalable font. The |
6301 | X11R6 XLFD spec says that point size, pixel size, and average width | |
6302 | are zero for scalable fonts. Intlfonts contain at least one | |
6303 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
6304 | just test average width. */ | |
6305 | ||
6306 | static int | |
6307 | font_scalable_p (font) | |
6308 | struct font_name *font; | |
6309 | { | |
6310 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
6311 | return (*s == '0' && *(s + 1) == '\0') |
6312 | #ifdef WINDOWSNT | |
6313 | /* Windows implementation of XLFD is slightly broken for backward | |
6314 | compatibility with previous broken versions, so test for | |
6315 | wildcards as well as 0. */ | |
6316 | || *s == '*' | |
6317 | #endif | |
6318 | ; | |
82641697 GM |
6319 | } |
6320 | ||
6321 | ||
8e1b21a7 KH |
6322 | /* Ignore the difference of font point size less than this value. */ |
6323 | ||
6324 | #define FONT_POINT_SIZE_QUANTUM 5 | |
6325 | ||
82641697 GM |
6326 | /* Value is non-zero if FONT1 is a better match for font attributes |
6327 | VALUES than FONT2. VALUES is an array of face attribute values in | |
6328 | font sort order. COMPARE_PT_P zero means don't compare point | |
a08332c0 GM |
6329 | sizes. AVGWIDTH, if not zero, is a specified font average width |
6330 | to compare with. */ | |
82641697 GM |
6331 | |
6332 | static int | |
a08332c0 | 6333 | better_font_p (values, font1, font2, compare_pt_p, avgwidth) |
82641697 GM |
6334 | int *values; |
6335 | struct font_name *font1, *font2; | |
a08332c0 | 6336 | int compare_pt_p, avgwidth; |
82641697 GM |
6337 | { |
6338 | int i; | |
178c5d9c | 6339 | |
a08332c0 | 6340 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6341 | { |
6342 | int xlfd_idx = font_sort_order[i]; | |
6343 | ||
6344 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
6345 | { | |
f70400f2 KH |
6346 | int delta1, delta2; |
6347 | ||
6348 | if (xlfd_idx == XLFD_POINT_SIZE) | |
6349 | { | |
6350 | delta1 = abs (values[i] - (font1->numeric[xlfd_idx] | |
6351 | / font1->rescale_ratio)); | |
6352 | delta2 = abs (values[i] - (font2->numeric[xlfd_idx] | |
6353 | / font2->rescale_ratio)); | |
6354 | if (abs (delta1 - delta2) < FONT_POINT_SIZE_QUANTUM) | |
6355 | continue; | |
6356 | } | |
6357 | else | |
6358 | { | |
6359 | delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
6360 | delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
6361 | } | |
178c5d9c | 6362 | |
82641697 GM |
6363 | if (delta1 > delta2) |
6364 | return 0; | |
6365 | else if (delta1 < delta2) | |
6366 | return 1; | |
6367 | else | |
6368 | { | |
6369 | /* The difference may be equal because, e.g., the face | |
6370 | specifies `italic' but we have only `regular' and | |
6371 | `oblique'. Prefer `oblique' in this case. */ | |
6372 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
6373 | && font1->numeric[xlfd_idx] > values[i] | |
6374 | && font2->numeric[xlfd_idx] < values[i]) | |
6375 | return 1; | |
6376 | } | |
6377 | } | |
6378 | } | |
178c5d9c | 6379 | |
a08332c0 GM |
6380 | if (avgwidth) |
6381 | { | |
6382 | int delta1 = abs (avgwidth - font1->numeric[XLFD_AVGWIDTH]); | |
6383 | int delta2 = abs (avgwidth - font2->numeric[XLFD_AVGWIDTH]); | |
6384 | if (delta1 > delta2) | |
6385 | return 0; | |
6386 | else if (delta1 < delta2) | |
6387 | return 1; | |
6388 | } | |
6389 | ||
10b7e56f KH |
6390 | if (! compare_pt_p) |
6391 | { | |
6392 | /* We prefer a real scalable font; i.e. not what autoscaled. */ | |
6393 | int auto_scaled_1 = (font1->numeric[XLFD_POINT_SIZE] == 0 | |
6394 | && font1->numeric[XLFD_RESY] > 0); | |
6395 | int auto_scaled_2 = (font2->numeric[XLFD_POINT_SIZE] == 0 | |
6396 | && font2->numeric[XLFD_RESY] > 0); | |
6397 | ||
6398 | if (auto_scaled_1 != auto_scaled_2) | |
6399 | return auto_scaled_2; | |
6400 | } | |
6401 | ||
a08332c0 | 6402 | return font1->registry_priority < font2->registry_priority; |
82641697 GM |
6403 | } |
6404 | ||
6405 | ||
82641697 GM |
6406 | /* Value is non-zero if FONT is an exact match for face attributes in |
6407 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
a08332c0 GM |
6408 | sort order. AVGWIDTH, if non-zero, is an average width to compare |
6409 | with. */ | |
82641697 GM |
6410 | |
6411 | static int | |
a08332c0 | 6412 | exact_face_match_p (specified, font, avgwidth) |
82641697 GM |
6413 | int *specified; |
6414 | struct font_name *font; | |
a08332c0 | 6415 | int avgwidth; |
82641697 GM |
6416 | { |
6417 | int i; | |
178c5d9c | 6418 | |
a08332c0 | 6419 | for (i = 0; i < DIM (font_sort_order); ++i) |
82641697 GM |
6420 | if (specified[i] != font->numeric[font_sort_order[i]]) |
6421 | break; | |
6422 | ||
a08332c0 GM |
6423 | return (i == DIM (font_sort_order) |
6424 | && (avgwidth <= 0 | |
6425 | || avgwidth == font->numeric[XLFD_AVGWIDTH])); | |
82641697 GM |
6426 | } |
6427 | ||
6428 | ||
6429 | /* Value is the name of a scaled font, generated from scalable font | |
6430 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
6431 | Value is allocated from heap. */ | |
6432 | ||
6433 | static char * | |
6434 | build_scalable_font_name (f, font, specified_pt) | |
6435 | struct frame *f; | |
6436 | struct font_name *font; | |
6437 | int specified_pt; | |
6438 | { | |
a7255152 | 6439 | char pixel_size[20]; |
82641697 GM |
6440 | int pixel_value; |
6441 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
6442 | double pt; | |
6443 | ||
6444 | /* If scalable font is for a specific resolution, compute | |
6445 | the point size we must specify from the resolution of | |
6446 | the display and the specified resolution of the font. */ | |
6447 | if (font->numeric[XLFD_RESY] != 0) | |
6448 | { | |
6449 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
02a6375c | 6450 | pixel_value = font->numeric[XLFD_RESY] / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 GM |
6451 | } |
6452 | else | |
6453 | { | |
6454 | pt = specified_pt; | |
02a6375c | 6455 | pixel_value = resy / (PT_PER_INCH * 10.0) * pt + 0.5; |
82641697 | 6456 | } |
f70400f2 KH |
6457 | /* We may need a font of the different size. */ |
6458 | pixel_value *= font->rescale_ratio; | |
178c5d9c | 6459 | |
f70400f2 KH |
6460 | /* We should keep POINT_SIZE 0. Otherwise, X server can't open a |
6461 | font of the specified PIXEL_SIZE. */ | |
6462 | #if 0 | |
a7255152 SM |
6463 | { /* Set point size of the font. */ |
6464 | char point_size[20]; | |
6465 | sprintf (point_size, "%d", (int) pt); | |
6466 | font->fields[XLFD_POINT_SIZE] = point_size; | |
6467 | font->numeric[XLFD_POINT_SIZE] = pt; | |
6468 | } | |
f70400f2 | 6469 | #endif |
178c5d9c | 6470 | |
82641697 GM |
6471 | /* Set pixel size. */ |
6472 | sprintf (pixel_size, "%d", pixel_value); | |
6473 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
6474 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 6475 | |
82641697 GM |
6476 | /* If font doesn't specify its resolution, use the |
6477 | resolution of the display. */ | |
6478 | if (font->numeric[XLFD_RESY] == 0) | |
6479 | { | |
6480 | char buffer[20]; | |
6481 | sprintf (buffer, "%d", (int) resy); | |
6482 | font->fields[XLFD_RESY] = buffer; | |
6483 | font->numeric[XLFD_RESY] = resy; | |
6484 | } | |
178c5d9c | 6485 | |
82641697 GM |
6486 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
6487 | { | |
6488 | char buffer[20]; | |
6489 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
6490 | sprintf (buffer, "%d", resx); | |
6491 | font->fields[XLFD_RESX] = buffer; | |
6492 | font->numeric[XLFD_RESX] = resx; | |
6493 | } | |
6494 | ||
6495 | return build_font_name (font); | |
6496 | } | |
6497 | ||
6498 | ||
6499 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
6500 | can't run a Lisp function here since this function may be called | |
6501 | with input blocked. */ | |
6502 | ||
6503 | static int | |
702a1e8e | 6504 | may_use_scalable_font_p (font) |
53c208f6 | 6505 | const char *font; |
82641697 GM |
6506 | { |
6507 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
6508 | return 1; | |
6509 | else if (CONSP (Vscalable_fonts_allowed)) | |
6510 | { | |
6511 | Lisp_Object tail, regexp; | |
178c5d9c | 6512 | |
82641697 GM |
6513 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
6514 | { | |
6515 | regexp = XCAR (tail); | |
6516 | if (STRINGP (regexp) | |
702a1e8e | 6517 | && fast_c_string_match_ignore_case (regexp, font) >= 0) |
82641697 GM |
6518 | return 1; |
6519 | } | |
6520 | } | |
178c5d9c | 6521 | |
82641697 GM |
6522 | return 0; |
6523 | } | |
6524 | ||
82641697 GM |
6525 | |
6526 | ||
2e6621ca GM |
6527 | /* Return the name of the best matching font for face attributes ATTRS |
6528 | in the array of font_name structures FONTS which contains NFONTS | |
6529 | elements. WIDTH_RATIO is a factor with which to multiply average | |
6530 | widths if ATTRS specifies such a width. | |
6531 | ||
6532 | Value is a font name which is allocated from the heap. FONTS is | |
6ae2cd57 MB |
6533 | freed by this function. |
6534 | ||
6535 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6536 | indicate whether the resulting font should be drawn using overstrike | |
6537 | to simulate bold-face. */ | |
82641697 GM |
6538 | |
6539 | static char * | |
6ae2cd57 | 6540 | best_matching_font (f, attrs, fonts, nfonts, width_ratio, needs_overstrike) |
82641697 GM |
6541 | struct frame *f; |
6542 | Lisp_Object *attrs; | |
6543 | struct font_name *fonts; | |
6544 | int nfonts; | |
2e6621ca | 6545 | int width_ratio; |
6ae2cd57 | 6546 | int *needs_overstrike; |
82641697 GM |
6547 | { |
6548 | char *font_name; | |
6549 | struct font_name *best; | |
334a2e2a | 6550 | int i, pt = 0; |
a08332c0 GM |
6551 | int specified[5]; |
6552 | int exact_p, avgwidth; | |
82641697 GM |
6553 | |
6554 | if (nfonts == 0) | |
6555 | return NULL; | |
6556 | ||
6557 | /* Make specified font attributes available in `specified', | |
6558 | indexed by sort order. */ | |
6559 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6560 | { | |
6561 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 6562 | |
82641697 GM |
6563 | if (xlfd_idx == XLFD_SWIDTH) |
6564 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
6565 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
6566 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
6567 | else if (xlfd_idx == XLFD_WEIGHT) | |
6568 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6569 | else if (xlfd_idx == XLFD_SLANT) | |
6570 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6571 | else | |
6572 | abort (); | |
6573 | } | |
6574 | ||
a08332c0 GM |
6575 | avgwidth = (UNSPECIFIEDP (attrs[LFACE_AVGWIDTH_INDEX]) |
6576 | ? 0 | |
2e6621ca | 6577 | : XFASTINT (attrs[LFACE_AVGWIDTH_INDEX]) * width_ratio); |
a08332c0 | 6578 | |
82641697 | 6579 | exact_p = 0; |
178c5d9c | 6580 | |
6ae2cd57 MB |
6581 | if (needs_overstrike) |
6582 | *needs_overstrike = 0; | |
6583 | ||
82641697 GM |
6584 | /* Start with the first non-scalable font in the list. */ |
6585 | for (i = 0; i < nfonts; ++i) | |
6586 | if (!font_scalable_p (fonts + i)) | |
6587 | break; | |
6588 | ||
6589 | /* Find the best match among the non-scalable fonts. */ | |
6590 | if (i < nfonts) | |
6591 | { | |
6592 | best = fonts + i; | |
178c5d9c | 6593 | |
82641697 GM |
6594 | for (i = 1; i < nfonts; ++i) |
6595 | if (!font_scalable_p (fonts + i) | |
a08332c0 | 6596 | && better_font_p (specified, fonts + i, best, 1, avgwidth)) |
82641697 GM |
6597 | { |
6598 | best = fonts + i; | |
6599 | ||
a08332c0 | 6600 | exact_p = exact_face_match_p (specified, best, avgwidth); |
82641697 GM |
6601 | if (exact_p) |
6602 | break; | |
6603 | } | |
82641697 GM |
6604 | } |
6605 | else | |
6606 | best = NULL; | |
6607 | ||
6608 | /* Unless we found an exact match among non-scalable fonts, see if | |
6609 | we can find a better match among scalable fonts. */ | |
6610 | if (!exact_p) | |
6611 | { | |
6612 | /* A scalable font is better if | |
6613 | ||
6614 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 6615 | |
82641697 GM |
6616 | 2. the best non-scalable font doesn't have the required |
6617 | point size, and the scalable fonts weight, slant, swidth | |
6618 | isn't worse. */ | |
6619 | ||
6620 | int non_scalable_has_exact_height_p; | |
6621 | ||
6622 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
6623 | non_scalable_has_exact_height_p = 1; | |
6624 | else | |
6625 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 6626 | |
82641697 GM |
6627 | for (i = 0; i < nfonts; ++i) |
6628 | if (font_scalable_p (fonts + i)) | |
6629 | { | |
6630 | if (best == NULL | |
a08332c0 | 6631 | || better_font_p (specified, fonts + i, best, 0, 0) |
82641697 | 6632 | || (!non_scalable_has_exact_height_p |
a08332c0 | 6633 | && !better_font_p (specified, best, fonts + i, 0, 0))) |
10b7e56f KH |
6634 | { |
6635 | non_scalable_has_exact_height_p = 1; | |
6636 | best = fonts + i; | |
6637 | } | |
82641697 | 6638 | } |
6ae2cd57 MB |
6639 | |
6640 | if (needs_overstrike) | |
6641 | { | |
6642 | enum xlfd_weight want_weight = specified[XLFD_WEIGHT]; | |
6643 | enum xlfd_weight got_weight = best->numeric[XLFD_WEIGHT]; | |
6644 | ||
6645 | if (want_weight > XLFD_WEIGHT_MEDIUM && want_weight > got_weight) | |
6646 | { | |
6647 | /* We want a bold font, but didn't get one; try to use | |
6648 | overstriking instead to simulate bold-face. However, | |
6649 | don't overstrike an already-bold fontn unless the | |
6650 | desired weight grossly exceeds the available weight. */ | |
6651 | if (got_weight > XLFD_WEIGHT_MEDIUM) | |
6652 | *needs_overstrike = (got_weight - want_weight) > 2; | |
6653 | else | |
6654 | *needs_overstrike = 1; | |
6655 | } | |
6656 | } | |
82641697 GM |
6657 | } |
6658 | ||
6659 | if (font_scalable_p (best)) | |
6660 | font_name = build_scalable_font_name (f, best, pt); | |
6661 | else | |
6662 | font_name = build_font_name (best); | |
178c5d9c | 6663 | |
82641697 GM |
6664 | /* Free font_name structures. */ |
6665 | free_font_names (fonts, nfonts); | |
178c5d9c | 6666 | |
82641697 GM |
6667 | return font_name; |
6668 | } | |
6669 | ||
6670 | ||
3cf80731 SM |
6671 | /* Get a list of matching fonts on frame F, considering FAMILY |
6672 | and alternative font families from Vface_alternative_font_registry_alist. | |
4a529c42 GM |
6673 | |
6674 | FAMILY is the font family whose alternatives are considered. | |
6675 | ||
6676 | REGISTRY, if a string, specifies a font registry and encoding to | |
6677 | match. A value of nil means include fonts of any registry and | |
6678 | encoding. | |
177c0ea7 | 6679 | |
4a529c42 GM |
6680 | Return in *FONTS a pointer to a vector of font_name structures for |
6681 | the fonts matched. Value is the number of fonts found. */ | |
6682 | ||
6683 | static int | |
6684 | try_alternative_families (f, family, registry, fonts) | |
6685 | struct frame *f; | |
6686 | Lisp_Object family, registry; | |
6687 | struct font_name **fonts; | |
6688 | { | |
6689 | Lisp_Object alter; | |
6690 | int nfonts = 0; | |
6691 | ||
3cf80731 SM |
6692 | nfonts = font_list (f, Qnil, family, registry, fonts); |
6693 | if (nfonts == 0) | |
4a529c42 | 6694 | { |
3cf80731 SM |
6695 | /* Try alternative font families. */ |
6696 | alter = Fassoc (family, Vface_alternative_font_family_alist); | |
6697 | if (CONSP (alter)) | |
6698 | { | |
6699 | for (alter = XCDR (alter); | |
6700 | CONSP (alter) && nfonts == 0; | |
6701 | alter = XCDR (alter)) | |
6702 | { | |
6703 | if (STRINGP (XCAR (alter))) | |
6704 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); | |
6705 | } | |
6706 | } | |
177c0ea7 | 6707 | |
f9a45bb3 KH |
6708 | /* Try all scalable fonts before giving up. */ |
6709 | if (nfonts == 0 && ! EQ (Vscalable_fonts_allowed, Qt)) | |
4a529c42 | 6710 | { |
331379bf | 6711 | int count = SPECPDL_INDEX (); |
3cf80731 SM |
6712 | specbind (Qscalable_fonts_allowed, Qt); |
6713 | nfonts = try_alternative_families (f, family, registry, fonts); | |
6714 | unbind_to (count, Qnil); | |
4a529c42 GM |
6715 | } |
6716 | } | |
4a529c42 GM |
6717 | return nfonts; |
6718 | } | |
6719 | ||
6720 | ||
702a1e8e GM |
6721 | /* Get a list of matching fonts on frame F. |
6722 | ||
3cf80731 SM |
6723 | FAMILY, if a string, specifies a font family derived from the fontset. |
6724 | It is only used if the face does not specify any family in ATTRS or | |
6725 | if we cannot find any font of the face's family. | |
702a1e8e GM |
6726 | |
6727 | REGISTRY, if a string, specifies a font registry and encoding to | |
6728 | match. A value of nil means include fonts of any registry and | |
6729 | encoding. | |
177c0ea7 | 6730 | |
54580ab2 KH |
6731 | If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY. |
6732 | Otherwise, prefer FAMILY. | |
6733 | ||
702a1e8e GM |
6734 | Return in *FONTS a pointer to a vector of font_name structures for |
6735 | the fonts matched. Value is the number of fonts found. */ | |
82641697 GM |
6736 | |
6737 | static int | |
54580ab2 | 6738 | try_font_list (f, attrs, family, registry, fonts, prefer_face_family) |
82641697 GM |
6739 | struct frame *f; |
6740 | Lisp_Object *attrs; | |
702a1e8e | 6741 | Lisp_Object family, registry; |
82641697 | 6742 | struct font_name **fonts; |
54580ab2 | 6743 | int prefer_face_family; |
82641697 | 6744 | { |
4a529c42 | 6745 | int nfonts = 0; |
3cf80731 | 6746 | Lisp_Object face_family = attrs[LFACE_FAMILY_INDEX]; |
54580ab2 KH |
6747 | Lisp_Object try_family; |
6748 | ||
e21880c6 | 6749 | try_family = (prefer_face_family || NILP (family)) ? face_family : family; |
82641697 | 6750 | |
54580ab2 KH |
6751 | if (STRINGP (try_family)) |
6752 | nfonts = try_alternative_families (f, try_family, registry, fonts); | |
3cf80731 | 6753 | |
f00691a3 | 6754 | #ifdef MAC_OS |
17d0f03b YM |
6755 | if (nfonts == 0 && STRINGP (try_family) && STRINGP (registry)) |
6756 | if (xstricmp (SDATA (registry), "mac-roman") == 0) | |
6757 | /* When realizing the default face and a font spec does not | |
6758 | matched exactly, Emacs looks for ones with the same registry | |
6759 | as the default font. On the Mac, this is mac-roman, which | |
6760 | does not work if the family is -etl-fixed, e.g. The | |
6761 | following widens the choices and fixes that problem. */ | |
6762 | nfonts = try_alternative_families (f, try_family, Qnil, fonts); | |
6763 | else if (SBYTES (try_family) > 0 | |
6764 | && SREF (try_family, SBYTES (try_family) - 1) != '*') | |
6765 | /* Some Central European/Cyrillic font family names have the | |
6766 | Roman counterpart name as their prefix. */ | |
6767 | nfonts = try_alternative_families (f, concat2 (try_family, | |
6768 | build_string ("*")), | |
6769 | registry, fonts); | |
f00691a3 AC |
6770 | #endif |
6771 | ||
e21880c6 | 6772 | if (EQ (try_family, family)) |
54580ab2 KH |
6773 | family = face_family; |
6774 | ||
6775 | if (nfonts == 0 && STRINGP (family)) | |
3cf80731 | 6776 | nfonts = try_alternative_families (f, family, registry, fonts); |
178c5d9c | 6777 | |
3cf80731 | 6778 | /* Try font family of the default face or "fixed". */ |
4a529c42 | 6779 | if (nfonts == 0) |
82641697 | 6780 | { |
3cf80731 SM |
6781 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6782 | if (default_face) | |
6783 | family = default_face->lface[LFACE_FAMILY_INDEX]; | |
6784 | else | |
6785 | family = build_string ("fixed"); | |
4a529c42 | 6786 | nfonts = font_list (f, Qnil, family, registry, fonts); |
82641697 | 6787 | } |
177c0ea7 | 6788 | |
3cf80731 SM |
6789 | /* Try any family with the given registry. */ |
6790 | if (nfonts == 0) | |
6aa1813f | 6791 | nfonts = try_alternative_families (f, Qnil, registry, fonts); |
82641697 GM |
6792 | |
6793 | return nfonts; | |
6794 | } | |
6795 | ||
82641697 | 6796 | |
39506348 KH |
6797 | /* Return the fontset id of the base fontset name or alias name given |
6798 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
6799 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
6800 | |
6801 | static int | |
39506348 | 6802 | face_fontset (attrs) |
82641697 GM |
6803 | Lisp_Object *attrs; |
6804 | { | |
39506348 | 6805 | Lisp_Object name; |
178c5d9c | 6806 | |
39506348 KH |
6807 | name = attrs[LFACE_FONT_INDEX]; |
6808 | if (!STRINGP (name)) | |
6809 | return -1; | |
6810 | return fs_query_fontset (name, 0); | |
82641697 GM |
6811 | } |
6812 | ||
6813 | ||
39506348 KH |
6814 | /* Choose a name of font to use on frame F to display character C with |
6815 | Lisp face attributes specified by ATTRS. The font name is | |
6816 | determined by the font-related attributes in ATTRS and the name | |
6817 | pattern for C in FONTSET. Value is the font name which is | |
6818 | allocated from the heap and must be freed by the caller, or NULL if | |
6819 | we can get no information about the font name of C. It is assured | |
6820 | that we always get some information for a single byte | |
6ae2cd57 MB |
6821 | character. |
6822 | ||
6823 | If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to | |
6824 | indicate whether the resulting font should be drawn using overstrike | |
6825 | to simulate bold-face. */ | |
82641697 GM |
6826 | |
6827 | static char * | |
6ae2cd57 | 6828 | choose_face_font (f, attrs, fontset, c, needs_overstrike) |
82641697 GM |
6829 | struct frame *f; |
6830 | Lisp_Object *attrs; | |
39506348 | 6831 | int fontset, c; |
6ae2cd57 | 6832 | int *needs_overstrike; |
82641697 | 6833 | { |
39506348 | 6834 | Lisp_Object pattern; |
82641697 | 6835 | char *font_name = NULL; |
82641697 | 6836 | struct font_name *fonts; |
2e6621ca | 6837 | int nfonts, width_ratio; |
178c5d9c | 6838 | |
774666fb MB |
6839 | if (needs_overstrike) |
6840 | *needs_overstrike = 0; | |
6841 | ||
39506348 KH |
6842 | /* Get (foundry and) family name and registry (and encoding) name of |
6843 | a font for C. */ | |
6844 | pattern = fontset_font_pattern (f, fontset, c); | |
6845 | if (NILP (pattern)) | |
6846 | { | |
6847 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
6848 | return NULL; | |
6849 | } | |
177c0ea7 | 6850 | |
39506348 KH |
6851 | /* If what we got is a name pattern, return it. */ |
6852 | if (STRINGP (pattern)) | |
d5db4077 | 6853 | return xstrdup (SDATA (pattern)); |
82641697 | 6854 | |
178c5d9c | 6855 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 6856 | best match for the specified face attributes from it. */ |
54580ab2 KH |
6857 | nfonts = try_font_list (f, attrs, XCAR (pattern), XCDR (pattern), &fonts, |
6858 | (SINGLE_BYTE_CHAR_P (c) | |
6859 | || CHAR_CHARSET (c) == charset_latin_iso8859_1)); | |
2e6621ca GM |
6860 | width_ratio = (SINGLE_BYTE_CHAR_P (c) |
6861 | ? 1 | |
6862 | : CHARSET_WIDTH (CHAR_CHARSET (c))); | |
6ae2cd57 MB |
6863 | font_name = best_matching_font (f, attrs, fonts, nfonts, width_ratio, |
6864 | needs_overstrike); | |
82641697 GM |
6865 | return font_name; |
6866 | } | |
6867 | ||
c3cee013 | 6868 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
6869 | |
6870 | ||
6871 | \f | |
6872 | /*********************************************************************** | |
6873 | Face Realization | |
6874 | ***********************************************************************/ | |
6875 | ||
6876 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
6877 | of F don't contain enough information needed to realize the default | |
6878 | face. */ | |
6879 | ||
6880 | static int | |
6881 | realize_basic_faces (f) | |
6882 | struct frame *f; | |
6883 | { | |
6884 | int success_p = 0; | |
331379bf | 6885 | int count = SPECPDL_INDEX (); |
17e8204b | 6886 | |
04386463 GM |
6887 | /* Block input here so that we won't be surprised by an X expose |
6888 | event, for instance, without having the faces set up. */ | |
17e8204b | 6889 | BLOCK_INPUT; |
eeffb293 | 6890 | specbind (Qscalable_fonts_allowed, Qt); |
178c5d9c | 6891 | |
82641697 GM |
6892 | if (realize_default_face (f)) |
6893 | { | |
92610620 | 6894 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
039b6394 | 6895 | realize_named_face (f, Qmode_line_inactive, MODE_LINE_INACTIVE_FACE_ID); |
9ea173e8 | 6896 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
4e50fa8b | 6897 | realize_named_face (f, Qfringe, FRINGE_FACE_ID); |
045dee35 | 6898 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
6899 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
6900 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
6901 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
6902 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 6903 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
53abc3bf | 6904 | realize_named_face (f, Qvertical_border, VERTICAL_BORDER_FACE_ID); |
563f68f1 | 6905 | |
b5de343d | 6906 | /* Reflect changes in the `menu' face in menu bars. */ |
ceeda019 | 6907 | if (FRAME_FACE_CACHE (f)->menu_face_changed_p) |
563f68f1 | 6908 | { |
ceeda019 | 6909 | FRAME_FACE_CACHE (f)->menu_face_changed_p = 0; |
563f68f1 | 6910 | #ifdef USE_X_TOOLKIT |
bce72079 | 6911 | x_update_menu_appearance (f); |
a03ad468 | 6912 | #endif |
563f68f1 | 6913 | } |
177c0ea7 | 6914 | |
82641697 GM |
6915 | success_p = 1; |
6916 | } | |
6917 | ||
eeffb293 | 6918 | unbind_to (count, Qnil); |
17e8204b | 6919 | UNBLOCK_INPUT; |
82641697 GM |
6920 | return success_p; |
6921 | } | |
6922 | ||
6923 | ||
6924 | /* Realize the default face on frame F. If the face is not fully | |
6925 | specified, make it fully-specified. Attributes of the default face | |
6926 | that are not explicitly specified are taken from frame parameters. */ | |
6927 | ||
6928 | static int | |
6929 | realize_default_face (f) | |
6930 | struct frame *f; | |
6931 | { | |
6932 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6933 | Lisp_Object lface; | |
6934 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
6935 | Lisp_Object frame_font; |
6936 | struct face *face; | |
82641697 GM |
6937 | |
6938 | /* If the `default' face is not yet known, create it. */ | |
6939 | lface = lface_from_face_name (f, Qdefault, 0); | |
6940 | if (NILP (lface)) | |
07446869 GM |
6941 | { |
6942 | Lisp_Object frame; | |
6943 | XSETFRAME (frame, f); | |
6944 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
6945 | } | |
6946 | ||
82641697 | 6947 | |
c3cee013 JR |
6948 | #ifdef HAVE_WINDOW_SYSTEM |
6949 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
6950 | { |
6951 | /* Set frame_font to the value of the `font' frame parameter. */ | |
6952 | frame_font = Fassq (Qfont, f->param_alist); | |
6953 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
6954 | frame_font = XCDR (frame_font); | |
a5f696ac JD |
6955 | set_lface_from_font_name (f, lface, frame_font, |
6956 | f->default_face_done_p, 1); | |
6957 | f->default_face_done_p = 1; | |
82641697 | 6958 | } |
c3cee013 | 6959 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 6960 | |
44747bd0 | 6961 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
6962 | { |
6963 | LFACE_FAMILY (lface) = build_string ("default"); | |
6964 | LFACE_SWIDTH (lface) = Qnormal; | |
6965 | LFACE_HEIGHT (lface) = make_number (1); | |
c1e7532d EZ |
6966 | if (UNSPECIFIEDP (LFACE_WEIGHT (lface))) |
6967 | LFACE_WEIGHT (lface) = Qnormal; | |
6968 | if (UNSPECIFIEDP (LFACE_SLANT (lface))) | |
6969 | LFACE_SLANT (lface) = Qnormal; | |
a08332c0 | 6970 | LFACE_AVGWIDTH (lface) = Qunspecified; |
82641697 | 6971 | } |
178c5d9c | 6972 | |
82641697 GM |
6973 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
6974 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 6975 | |
82641697 GM |
6976 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
6977 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 6978 | |
82641697 GM |
6979 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
6980 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 6981 | |
82641697 GM |
6982 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
6983 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 6984 | |
82641697 GM |
6985 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
6986 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 6987 | |
82641697 GM |
6988 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
6989 | { | |
6990 | /* This function is called so early that colors are not yet | |
6991 | set in the frame parameter list. */ | |
6992 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 6993 | |
82641697 GM |
6994 | if (CONSP (color) && STRINGP (XCDR (color))) |
6995 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 6996 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6997 | return 0; |
e689ec06 | 6998 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6999 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 7000 | else |
82641697 GM |
7001 | abort (); |
7002 | } | |
178c5d9c | 7003 | |
82641697 GM |
7004 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
7005 | { | |
7006 | /* This function is called so early that colors are not yet | |
7007 | set in the frame parameter list. */ | |
7008 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
7009 | if (CONSP (color) && STRINGP (XCDR (color))) | |
7010 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 7011 | else if (FRAME_WINDOW_P (f)) |
82641697 | 7012 | return 0; |
e689ec06 | 7013 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 7014 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 7015 | else |
82641697 GM |
7016 | abort (); |
7017 | } | |
178c5d9c | 7018 | |
82641697 GM |
7019 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
7020 | LFACE_STIPPLE (lface) = Qnil; | |
7021 | ||
7022 | /* Realize the face; it must be fully-specified now. */ | |
7023 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
7024 | check_lface (lface); | |
7025 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 7026 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
7027 | return 1; |
7028 | } | |
7029 | ||
7030 | ||
7031 | /* Realize basic faces other than the default face in face cache C. | |
7032 | SYMBOL is the face name, ID is the face id the realized face must | |
7033 | have. The default face must have been realized already. */ | |
7034 | ||
7035 | static void | |
7036 | realize_named_face (f, symbol, id) | |
7037 | struct frame *f; | |
7038 | Lisp_Object symbol; | |
7039 | int id; | |
7040 | { | |
7041 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
7042 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
7043 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7044 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
7045 | struct face *new_face; | |
7046 | ||
7047 | /* The default face must exist and be fully specified. */ | |
7048 | get_lface_attributes (f, Qdefault, attrs, 1); | |
7049 | check_lface_attrs (attrs); | |
7050 | xassert (lface_fully_specified_p (attrs)); | |
7051 | ||
7052 | /* If SYMBOL isn't know as a face, create it. */ | |
7053 | if (NILP (lface)) | |
7054 | { | |
7055 | Lisp_Object frame; | |
7056 | XSETFRAME (frame, f); | |
7057 | lface = Finternal_make_lisp_face (symbol, frame); | |
7058 | } | |
7059 | ||
7060 | /* Merge SYMBOL's face with the default face. */ | |
7061 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
a0a23346 | 7062 | merge_face_vectors (f, symbol_attrs, attrs, 0); |
82641697 GM |
7063 | |
7064 | /* Realize the face. */ | |
39506348 | 7065 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
7066 | } |
7067 | ||
7068 | ||
7069 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 7070 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
7071 | BASE_FACE is a face that has the same attributes. Otherwise, |
7072 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
7073 | ID of face to remove before caching the new face. Value is a | |
7074 | pointer to the newly created realized face. */ | |
82641697 GM |
7075 | |
7076 | static struct face * | |
39506348 KH |
7077 | realize_face (cache, attrs, c, base_face, former_face_id) |
7078 | struct face_cache *cache; | |
82641697 | 7079 | Lisp_Object *attrs; |
39506348 KH |
7080 | int c; |
7081 | struct face *base_face; | |
7082 | int former_face_id; | |
82641697 GM |
7083 | { |
7084 | struct face *face; | |
178c5d9c | 7085 | |
82641697 | 7086 | /* LFACE must be fully specified. */ |
39506348 | 7087 | xassert (cache != NULL); |
82641697 GM |
7088 | check_lface_attrs (attrs); |
7089 | ||
39506348 KH |
7090 | if (former_face_id >= 0 && cache->used > former_face_id) |
7091 | { | |
7092 | /* Remove the former face. */ | |
7093 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
7094 | uncache_face (cache, former_face); | |
7095 | free_realized_face (cache->f, former_face); | |
7096 | } | |
7097 | ||
7098 | if (FRAME_WINDOW_P (cache->f)) | |
7099 | face = realize_x_face (cache, attrs, c, base_face); | |
e689ec06 | 7100 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) |
39506348 | 7101 | face = realize_tty_face (cache, attrs, c); |
82641697 GM |
7102 | else |
7103 | abort (); | |
7104 | ||
39506348 KH |
7105 | /* Insert the new face. */ |
7106 | cache_face (cache, face, lface_hash (attrs)); | |
7107 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 7108 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
7109 | load_face_font (cache->f, face, c); |
7110 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
7111 | return face; |
7112 | } | |
7113 | ||
7114 | ||
7115 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 7116 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
7117 | a multibyte character, BASE_FACE is a face that has the same |
7118 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
7119 | doesn't share font with the default face, a fontname is allocated | |
7120 | from the heap and set in `font_name' of the new face, but it is not | |
7121 | yet loaded here. Value is a pointer to the newly created realized | |
7122 | face. */ | |
82641697 GM |
7123 | |
7124 | static struct face * | |
39506348 KH |
7125 | realize_x_face (cache, attrs, c, base_face) |
7126 | struct face_cache *cache; | |
82641697 | 7127 | Lisp_Object *attrs; |
39506348 KH |
7128 | int c; |
7129 | struct face *base_face; | |
82641697 | 7130 | { |
7d603e3f | 7131 | struct face *face = NULL; |
c3cee013 | 7132 | #ifdef HAVE_WINDOW_SYSTEM |
7d603e3f | 7133 | struct face *default_face; |
78d2079c | 7134 | struct frame *f; |
82641697 | 7135 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 7136 | |
39506348 KH |
7137 | xassert (FRAME_WINDOW_P (cache->f)); |
7138 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 7139 | || base_face); |
82641697 GM |
7140 | |
7141 | /* Allocate a new realized face. */ | |
39506348 KH |
7142 | face = make_realized_face (attrs); |
7143 | ||
7144 | f = cache->f; | |
7145 | ||
7146 | /* If C is a multibyte character, we share all face attirbutes with | |
7147 | BASE_FACE including the realized fontset. But, we must load a | |
7148 | different font. */ | |
7149 | if (!SINGLE_BYTE_CHAR_P (c)) | |
7150 | { | |
7151 | bcopy (base_face, face, sizeof *face); | |
7152 | face->gc = 0; | |
e911049b GM |
7153 | |
7154 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
28a072fe | 7155 | face->colors_copied_bitwise_p = 1; |
178c5d9c | 7156 | |
e911049b GM |
7157 | /* to force realize_face to load font */ |
7158 | face->font = NULL; | |
39506348 KH |
7159 | return face; |
7160 | } | |
7161 | ||
7162 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
7163 | |
7164 | /* Determine the font to use. Most of the time, the font will be | |
7165 | the same as the font of the default face, so try that first. */ | |
7166 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7167 | if (default_face | |
39506348 | 7168 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
7169 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
7170 | { | |
7171 | face->font = default_face->font; | |
7172 | face->fontset = default_face->fontset; | |
7173 | face->font_info_id = default_face->font_info_id; | |
7174 | face->font_name = default_face->font_name; | |
39506348 | 7175 | face->ascii_face = face; |
82641697 | 7176 | |
39506348 KH |
7177 | /* But, as we can't share the fontset, make a new realized |
7178 | fontset that has the same base fontset as of the default | |
7179 | face. */ | |
7180 | face->fontset | |
7181 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
7182 | } |
7183 | else | |
7184 | { | |
39506348 | 7185 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
7186 | the base of a new realized fontset. Otherwise, use the same |
7187 | base fontset as of the default face. The base determines | |
7188 | registry and encoding of a font. It may also determine | |
7189 | foundry and family. The other fields of font name pattern | |
7190 | are constructed from ATTRS. */ | |
7191 | int fontset = face_fontset (attrs); | |
7192 | ||
178c5d9c | 7193 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
7194 | fontset = default_face->fontset; |
7195 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 7196 | face->font = NULL; /* to force realize_face to load font */ |
82641697 GM |
7197 | } |
7198 | ||
7199 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 7200 | |
82641697 | 7201 | load_face_colors (f, face, attrs); |
660ed669 | 7202 | |
82641697 GM |
7203 | /* Set up box. */ |
7204 | box = attrs[LFACE_BOX_INDEX]; | |
7205 | if (STRINGP (box)) | |
cb637678 | 7206 | { |
82641697 GM |
7207 | /* A simple box of line width 1 drawn in color given by |
7208 | the string. */ | |
7209 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
7210 | LFACE_BOX_INDEX); | |
7211 | face->box = FACE_SIMPLE_BOX; | |
7212 | face->box_line_width = 1; | |
cb637678 | 7213 | } |
82641697 | 7214 | else if (INTEGERP (box)) |
42120bc7 | 7215 | { |
82641697 GM |
7216 | /* Simple box of specified line width in foreground color of the |
7217 | face. */ | |
89624b8b | 7218 | xassert (XINT (box) != 0); |
82641697 | 7219 | face->box = FACE_SIMPLE_BOX; |
89624b8b | 7220 | face->box_line_width = XINT (box); |
82641697 GM |
7221 | face->box_color = face->foreground; |
7222 | face->box_color_defaulted_p = 1; | |
7223 | } | |
7224 | else if (CONSP (box)) | |
7225 | { | |
7226 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
7227 | being one of `raised' or `sunken'. */ | |
7228 | face->box = FACE_SIMPLE_BOX; | |
7229 | face->box_color = face->foreground; | |
7230 | face->box_color_defaulted_p = 1; | |
7231 | face->box_line_width = 1; | |
7232 | ||
7233 | while (CONSP (box)) | |
42120bc7 | 7234 | { |
82641697 GM |
7235 | Lisp_Object keyword, value; |
7236 | ||
7237 | keyword = XCAR (box); | |
7238 | box = XCDR (box); | |
7239 | ||
7240 | if (!CONSP (box)) | |
7241 | break; | |
7242 | value = XCAR (box); | |
7243 | box = XCDR (box); | |
7244 | ||
7245 | if (EQ (keyword, QCline_width)) | |
7246 | { | |
89624b8b KH |
7247 | if (INTEGERP (value) && XINT (value) != 0) |
7248 | face->box_line_width = XINT (value); | |
82641697 GM |
7249 | } |
7250 | else if (EQ (keyword, QCcolor)) | |
7251 | { | |
7252 | if (STRINGP (value)) | |
7253 | { | |
7254 | face->box_color = load_color (f, face, value, | |
7255 | LFACE_BOX_INDEX); | |
7256 | face->use_box_color_for_shadows_p = 1; | |
7257 | } | |
7258 | } | |
7259 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 7260 | { |
82641697 GM |
7261 | if (EQ (value, Qreleased_button)) |
7262 | face->box = FACE_RAISED_BOX; | |
7263 | else if (EQ (value, Qpressed_button)) | |
7264 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 7265 | } |
42120bc7 RS |
7266 | } |
7267 | } | |
195f798e | 7268 | |
82641697 | 7269 | /* Text underline, overline, strike-through. */ |
178c5d9c | 7270 | |
82641697 | 7271 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 7272 | { |
82641697 GM |
7273 | /* Use default color (same as foreground color). */ |
7274 | face->underline_p = 1; | |
7275 | face->underline_defaulted_p = 1; | |
7276 | face->underline_color = 0; | |
7277 | } | |
7278 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 7279 | { |
82641697 GM |
7280 | /* Use specified color. */ |
7281 | face->underline_p = 1; | |
7282 | face->underline_defaulted_p = 0; | |
7283 | face->underline_color | |
7284 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
7285 | LFACE_UNDERLINE_INDEX); | |
195f798e | 7286 | } |
82641697 | 7287 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 7288 | { |
82641697 GM |
7289 | face->underline_p = 0; |
7290 | face->underline_defaulted_p = 0; | |
7291 | face->underline_color = 0; | |
7b00de84 JB |
7292 | } |
7293 | ||
82641697 GM |
7294 | overline = attrs[LFACE_OVERLINE_INDEX]; |
7295 | if (STRINGP (overline)) | |
cb637678 | 7296 | { |
82641697 GM |
7297 | face->overline_color |
7298 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
7299 | LFACE_OVERLINE_INDEX); | |
7300 | face->overline_p = 1; | |
cb637678 | 7301 | } |
82641697 | 7302 | else if (EQ (overline, Qt)) |
cb637678 | 7303 | { |
82641697 GM |
7304 | face->overline_color = face->foreground; |
7305 | face->overline_color_defaulted_p = 1; | |
7306 | face->overline_p = 1; | |
cb637678 JB |
7307 | } |
7308 | ||
82641697 GM |
7309 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
7310 | if (STRINGP (strike_through)) | |
7311 | { | |
7312 | face->strike_through_color | |
7313 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
7314 | LFACE_STRIKE_THROUGH_INDEX); | |
7315 | face->strike_through_p = 1; | |
7316 | } | |
7317 | else if (EQ (strike_through, Qt)) | |
7318 | { | |
7319 | face->strike_through_color = face->foreground; | |
7320 | face->strike_through_color_defaulted_p = 1; | |
7321 | face->strike_through_p = 1; | |
7322 | } | |
867dd159 | 7323 | |
82641697 GM |
7324 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
7325 | if (!NILP (stipple)) | |
7326 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 7327 | |
39506348 | 7328 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c3cee013 | 7329 | #endif /* HAVE_WINDOW_SYSTEM */ |
7d603e3f | 7330 | return face; |
660ed669 JB |
7331 | } |
7332 | ||
729425b1 | 7333 | |
ae4b4ba5 GM |
7334 | /* Map a specified color of face FACE on frame F to a tty color index. |
7335 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
7336 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
7337 | default foreground/background colors. */ | |
7338 | ||
7339 | static void | |
7340 | map_tty_color (f, face, idx, defaulted) | |
7341 | struct frame *f; | |
7342 | struct face *face; | |
7343 | enum lface_attribute_index idx; | |
7344 | int *defaulted; | |
7345 | { | |
7346 | Lisp_Object frame, color, def; | |
7347 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
7348 | unsigned long default_pixel, default_other_pixel, pixel; | |
7349 | ||
7350 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
7351 | ||
7352 | if (foreground_p) | |
7353 | { | |
7354 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7355 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7356 | } | |
7357 | else | |
7358 | { | |
7359 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
7360 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
7361 | } | |
177c0ea7 | 7362 | |
ae4b4ba5 GM |
7363 | XSETFRAME (frame, f); |
7364 | color = face->lface[idx]; | |
177c0ea7 | 7365 | |
ae4b4ba5 | 7366 | if (STRINGP (color) |
d5db4077 | 7367 | && SCHARS (color) |
ae4b4ba5 GM |
7368 | && CONSP (Vtty_defined_color_alist) |
7369 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
7370 | CONSP (def))) | |
7371 | { | |
7372 | /* Associations in tty-defined-color-alist are of the form | |
7373 | (NAME INDEX R G B). We need the INDEX part. */ | |
7374 | pixel = XINT (XCAR (XCDR (def))); | |
7375 | } | |
7376 | ||
7377 | if (pixel == default_pixel && STRINGP (color)) | |
7378 | { | |
7379 | pixel = load_color (f, face, color, idx); | |
7380 | ||
7381 | #if defined (MSDOS) || defined (WINDOWSNT) | |
7382 | /* If the foreground of the default face is the default color, | |
7383 | use the foreground color defined by the frame. */ | |
7384 | #ifdef MSDOS | |
7385 | if (FRAME_MSDOS_P (f)) | |
7386 | { | |
7387 | #endif /* MSDOS */ | |
7388 | if (pixel == default_pixel | |
7389 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
7390 | { | |
7391 | if (foreground_p) | |
7392 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7393 | else | |
7394 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7395 | face->lface[idx] = tty_color_name (f, pixel); | |
7396 | *defaulted = 1; | |
7397 | } | |
7398 | else if (pixel == default_other_pixel) | |
7399 | { | |
7400 | if (foreground_p) | |
7401 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
7402 | else | |
7403 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
7404 | face->lface[idx] = tty_color_name (f, pixel); | |
7405 | *defaulted = 1; | |
7406 | } | |
7407 | #ifdef MSDOS | |
7408 | } | |
7409 | #endif | |
7410 | #endif /* MSDOS or WINDOWSNT */ | |
7411 | } | |
7412 | ||
7413 | if (foreground_p) | |
7414 | face->foreground = pixel; | |
7415 | else | |
7416 | face->background = pixel; | |
7417 | } | |
7418 | ||
7419 | ||
82641697 | 7420 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
7421 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
7422 | pointer to the newly created realized face. */ | |
a8517066 | 7423 | |
82641697 | 7424 | static struct face * |
39506348 KH |
7425 | realize_tty_face (cache, attrs, c) |
7426 | struct face_cache *cache; | |
82641697 | 7427 | Lisp_Object *attrs; |
39506348 | 7428 | int c; |
82641697 GM |
7429 | { |
7430 | struct face *face; | |
7431 | int weight, slant; | |
2d764c78 | 7432 | int face_colors_defaulted = 0; |
ae4b4ba5 | 7433 | struct frame *f = cache->f; |
729425b1 | 7434 | |
82641697 | 7435 | /* Frame must be a termcap frame. */ |
e689ec06 | 7436 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 7437 | |
82641697 | 7438 | /* Allocate a new realized face. */ |
39506348 | 7439 | face = make_realized_face (attrs); |
e689ec06 | 7440 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; |
82641697 | 7441 | |
178c5d9c | 7442 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
7443 | dimmed text because we want italic text to appear differently |
7444 | and because dimmed text is probably used infrequently. */ | |
7445 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
7446 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
7447 | ||
7448 | if (weight > XLFD_WEIGHT_MEDIUM) | |
7449 | face->tty_bold_p = 1; | |
7450 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
7451 | face->tty_dim_p = 1; | |
7452 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
7453 | face->tty_underline_p = 1; | |
7454 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
7455 | face->tty_reverse_p = 1; | |
7456 | ||
7457 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
7458 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
7459 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
177c0ea7 | 7460 | |
2d764c78 EZ |
7461 | /* Swap colors if face is inverse-video. If the colors are taken |
7462 | from the frame colors, they are already inverted, since the | |
7463 | frame-creation function calls x-handle-reverse-video. */ | |
7464 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
7465 | { |
7466 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
7467 | face->foreground = face->background; |
7468 | face->background = tem; | |
7469 | } | |
44747bd0 | 7470 | |
a4a76b61 GM |
7471 | if (tty_suppress_bold_inverse_default_colors_p |
7472 | && face->tty_bold_p | |
7473 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
7474 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
7475 | face->tty_bold_p = 0; | |
7476 | ||
82641697 | 7477 | return face; |
729425b1 | 7478 | } |
867dd159 | 7479 | |
82641697 | 7480 | |
a4a76b61 GM |
7481 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
7482 | Ftty_suppress_bold_inverse_default_colors, | |
7483 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
e3cd9e7f | 7484 | doc: /* Suppress/allow boldness of faces with inverse default colors. |
228299fa GM |
7485 | SUPPRESS non-nil means suppress it. |
7486 | This affects bold faces on TTYs whose foreground is the default background | |
7487 | color of the display and whose background is the default foreground color. | |
7488 | For such faces, the bold face attribute is ignored if this variable | |
7ee72033 MB |
7489 | is non-nil. */) |
7490 | (suppress) | |
a4a76b61 GM |
7491 | Lisp_Object suppress; |
7492 | { | |
7493 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
7494 | ++face_change_count; | |
7495 | return suppress; | |
7496 | } | |
7497 | ||
7498 | ||
82641697 GM |
7499 | \f |
7500 | /*********************************************************************** | |
7501 | Computing Faces | |
7502 | ***********************************************************************/ | |
7503 | ||
7504 | /* Return the ID of the face to use to display character CH with face | |
7505 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
7506 | |
7507 | int | |
82641697 | 7508 | compute_char_face (f, ch, prop) |
2e16580f | 7509 | struct frame *f; |
82641697 GM |
7510 | int ch; |
7511 | Lisp_Object prop; | |
2e16580f | 7512 | { |
82641697 | 7513 | int face_id; |
39506348 KH |
7514 | |
7515 | if (NILP (current_buffer->enable_multibyte_characters)) | |
522d42f7 | 7516 | ch = 0; |
178c5d9c | 7517 | |
82641697 | 7518 | if (NILP (prop)) |
39506348 KH |
7519 | { |
7520 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7521 | face_id = FACE_FOR_CHAR (f, face, ch); | |
7522 | } | |
82641697 | 7523 | else |
2e16580f | 7524 | { |
82641697 GM |
7525 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
7526 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
7527 | bcopy (default_face->lface, attrs, sizeof attrs); | |
a0a23346 | 7528 | merge_face_ref (f, prop, attrs, 1, 0); |
39506348 | 7529 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
7530 | } |
7531 | ||
82641697 | 7532 | return face_id; |
2e16580f | 7533 | } |
bc0db68d | 7534 | |
82641697 GM |
7535 | /* Return the face ID associated with buffer position POS for |
7536 | displaying ASCII characters. Return in *ENDPTR the position at | |
7537 | which a different face is needed, as far as text properties and | |
7538 | overlays are concerned. W is a window displaying current_buffer. | |
7539 | ||
7540 | REGION_BEG, REGION_END delimit the region, so it can be | |
7541 | highlighted. | |
6f134486 | 7542 | |
82641697 GM |
7543 | LIMIT is a position not to scan beyond. That is to limit the time |
7544 | this function can take. | |
7545 | ||
7546 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
7547 | ||
39506348 | 7548 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 7549 | |
cb637678 | 7550 | int |
82641697 GM |
7551 | face_at_buffer_position (w, pos, region_beg, region_end, |
7552 | endptr, limit, mouse) | |
f211082d | 7553 | struct window *w; |
7b7739b1 | 7554 | int pos; |
bc0db68d | 7555 | int region_beg, region_end; |
7b7739b1 | 7556 | int *endptr; |
b349f4fb | 7557 | int limit; |
6f134486 | 7558 | int mouse; |
7b7739b1 | 7559 | { |
82641697 GM |
7560 | struct frame *f = XFRAME (w->frame); |
7561 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 7562 | Lisp_Object prop, position; |
82641697 | 7563 | int i, noverlays; |
7b7739b1 | 7564 | Lisp_Object *overlay_vec; |
f211082d | 7565 | Lisp_Object frame; |
f6b98e0b | 7566 | int endpos; |
82641697 GM |
7567 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
7568 | Lisp_Object limit1, end; | |
7569 | struct face *default_face; | |
f6b98e0b JB |
7570 | |
7571 | /* W must display the current buffer. We could write this function | |
7572 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 7573 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 7574 | |
ac22a6c4 | 7575 | XSETFRAME (frame, f); |
82641697 | 7576 | XSETFASTINT (position, pos); |
7b7739b1 | 7577 | |
f6b98e0b | 7578 | endpos = ZV; |
bc0db68d RS |
7579 | if (pos < region_beg && region_beg < endpos) |
7580 | endpos = region_beg; | |
f6b98e0b | 7581 | |
82641697 GM |
7582 | /* Get the `face' or `mouse_face' text property at POS, and |
7583 | determine the next position at which the property changes. */ | |
6f134486 | 7584 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
7585 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
7586 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
7587 | if (INTEGERP (end)) | |
7588 | endpos = XINT (end); | |
6f134486 | 7589 | |
82641697 | 7590 | /* Look at properties from overlays. */ |
b6d40e46 | 7591 | { |
f6b98e0b | 7592 | int next_overlay; |
b6d40e46 | 7593 | |
0bc90bba | 7594 | GET_OVERLAYS_AT (pos, overlay_vec, noverlays, &next_overlay, 0); |
f6b98e0b JB |
7595 | if (next_overlay < endpos) |
7596 | endpos = next_overlay; | |
b6d40e46 JB |
7597 | } |
7598 | ||
7599 | *endptr = endpos; | |
7b7739b1 | 7600 | |
82641697 | 7601 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 7602 | |
82641697 GM |
7603 | /* Optimize common cases where we can use the default face. */ |
7604 | if (noverlays == 0 | |
7605 | && NILP (prop) | |
39506348 | 7606 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
7607 | return DEFAULT_FACE_ID; |
7608 | ||
7609 | /* Begin with attributes from the default face. */ | |
7610 | bcopy (default_face->lface, attrs, sizeof attrs); | |
7611 | ||
7612 | /* Merge in attributes specified via text properties. */ | |
7613 | if (!NILP (prop)) | |
a0a23346 | 7614 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
7615 | |
7616 | /* Now merge the overlay data. */ | |
18195655 | 7617 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 7618 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 7619 | { |
18195655 RS |
7620 | Lisp_Object oend; |
7621 | int oendpos; | |
7622 | ||
7623 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 | 7624 | if (!NILP (prop)) |
a0a23346 | 7625 | merge_face_ref (f, prop, attrs, 1, 0); |
18195655 RS |
7626 | |
7627 | oend = OVERLAY_END (overlay_vec[i]); | |
7628 | oendpos = OVERLAY_POSITION (oend); | |
7629 | if (oendpos < endpos) | |
7630 | endpos = oendpos; | |
7631 | } | |
7632 | ||
82641697 | 7633 | /* If in the region, merge in the region face. */ |
18195655 RS |
7634 | if (pos >= region_beg && pos < region_end) |
7635 | { | |
a0a23346 | 7636 | merge_named_face (f, Qregion, attrs, 0); |
178c5d9c | 7637 | |
18195655 RS |
7638 | if (region_end < endpos) |
7639 | endpos = region_end; | |
18195655 RS |
7640 | } |
7641 | ||
7642 | *endptr = endpos; | |
7643 | ||
82641697 | 7644 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7645 | or realize a new one for ASCII characters. */ |
7646 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
7647 | } |
7648 | ||
60573a90 | 7649 | |
82641697 | 7650 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 7651 | window W, for ASCII characters. |
7b7739b1 | 7652 | |
82641697 GM |
7653 | If STRING is an overlay string, it comes from position BUFPOS in |
7654 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
7655 | not an overlay string. W must display the current buffer. | |
7656 | REGION_BEG and REGION_END give the start and end positions of the | |
8714a182 GM |
7657 | region; both are -1 if no region is visible. |
7658 | ||
7659 | BASE_FACE_ID is the id of a face to merge with. For strings coming | |
7660 | from overlays or the `display' property it is the face at BUFPOS. | |
178c5d9c | 7661 | |
48a4ca99 GM |
7662 | If MOUSE_P is non-zero, use the character's mouse-face, not its face. |
7663 | ||
82641697 GM |
7664 | Set *ENDPTR to the next position where to check for faces in |
7665 | STRING; -1 if the face is constant from POS to the end of the | |
7666 | string. | |
18195655 | 7667 | |
82641697 | 7668 | Value is the id of the face to use. The face returned is suitable |
39506348 | 7669 | for displaying ASCII characters. */ |
fffc2367 | 7670 | |
82641697 GM |
7671 | int |
7672 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
48a4ca99 | 7673 | region_end, endptr, base_face_id, mouse_p) |
82641697 GM |
7674 | struct window *w; |
7675 | Lisp_Object string; | |
7676 | int pos, bufpos; | |
7677 | int region_beg, region_end; | |
7678 | int *endptr; | |
7679 | enum face_id base_face_id; | |
48a4ca99 | 7680 | int mouse_p; |
660ed669 | 7681 | { |
82641697 GM |
7682 | Lisp_Object prop, position, end, limit; |
7683 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
7684 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7685 | struct face *base_face; | |
7686 | int multibyte_p = STRING_MULTIBYTE (string); | |
48a4ca99 | 7687 | Lisp_Object prop_name = mouse_p ? Qmouse_face : Qface; |
82641697 GM |
7688 | |
7689 | /* Get the value of the face property at the current position within | |
7690 | STRING. Value is nil if there is no face property. */ | |
7691 | XSETFASTINT (position, pos); | |
48a4ca99 | 7692 | prop = Fget_text_property (position, prop_name, string); |
82641697 GM |
7693 | |
7694 | /* Get the next position at which to check for faces. Value of end | |
7695 | is nil if face is constant all the way to the end of the string. | |
7696 | Otherwise it is a string position where to check faces next. | |
7697 | Limit is the maximum position up to which to check for property | |
7698 | changes in Fnext_single_property_change. Strings are usually | |
7699 | short, so set the limit to the end of the string. */ | |
d5db4077 | 7700 | XSETFASTINT (limit, SCHARS (string)); |
48a4ca99 | 7701 | end = Fnext_single_property_change (position, prop_name, string, limit); |
82641697 GM |
7702 | if (INTEGERP (end)) |
7703 | *endptr = XFASTINT (end); | |
7704 | else | |
7705 | *endptr = -1; | |
7706 | ||
7707 | base_face = FACE_FROM_ID (f, base_face_id); | |
7708 | xassert (base_face); | |
7709 | ||
7710 | /* Optimize the default case that there is no face property and we | |
7711 | are not in the region. */ | |
7712 | if (NILP (prop) | |
7713 | && (base_face_id != DEFAULT_FACE_ID | |
7714 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
7715 | that the region doesn't have to be taken into account. */ | |
7716 | || bufpos <= 0 | |
7717 | || bufpos < region_beg | |
7718 | || bufpos >= region_end) | |
7719 | && (multibyte_p | |
7720 | /* We can't realize faces for different charsets differently | |
7721 | if we don't have fonts, so we can stop here if not working | |
7722 | on a window-system frame. */ | |
7723 | || !FRAME_WINDOW_P (f) | |
39506348 | 7724 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
7725 | return base_face->id; |
7726 | ||
7727 | /* Begin with attributes from the base face. */ | |
7728 | bcopy (base_face->lface, attrs, sizeof attrs); | |
7729 | ||
7730 | /* Merge in attributes specified via text properties. */ | |
7731 | if (!NILP (prop)) | |
a0a23346 | 7732 | merge_face_ref (f, prop, attrs, 1, 0); |
82641697 GM |
7733 | |
7734 | /* If in the region, merge in the region face. */ | |
7735 | if (bufpos | |
7736 | && bufpos >= region_beg | |
7737 | && bufpos < region_end) | |
a0a23346 | 7738 | merge_named_face (f, Qregion, attrs, 0); |
660ed669 | 7739 | |
82641697 | 7740 | /* Look up a realized face with the given face attributes, |
39506348 KH |
7741 | or realize a new one for ASCII characters. */ |
7742 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
7743 | } |
7744 | ||
7745 | ||
fd998c7f KS |
7746 | /* Merge a face into a realized face. |
7747 | ||
7748 | F is frame where faces are (to be) realized. | |
7749 | ||
dc91a0ed KS |
7750 | FACE_NAME is named face to merge. |
7751 | ||
7752 | If FACE_NAME is nil, FACE_ID is face_id of realized face to merge. | |
7753 | ||
7754 | If FACE_NAME is t, FACE_ID is lface_id of face to merge. | |
fd998c7f KS |
7755 | |
7756 | BASE_FACE_ID is realized face to merge into. | |
7757 | ||
dc91a0ed | 7758 | Return new face id. |
fd998c7f KS |
7759 | */ |
7760 | ||
7761 | int | |
dc91a0ed | 7762 | merge_faces (f, face_name, face_id, base_face_id) |
fd998c7f KS |
7763 | struct frame *f; |
7764 | Lisp_Object face_name; | |
7765 | int face_id, base_face_id; | |
7766 | { | |
7767 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
7768 | struct face *base_face; | |
7769 | ||
7770 | base_face = FACE_FROM_ID (f, base_face_id); | |
7771 | if (!base_face) | |
7772 | return base_face_id; | |
7773 | ||
dc91a0ed KS |
7774 | if (EQ (face_name, Qt)) |
7775 | { | |
7776 | if (face_id < 0 || face_id >= lface_id_to_name_size) | |
7777 | return base_face_id; | |
7778 | face_name = lface_id_to_name[face_id]; | |
d196a547 | 7779 | face_id = lookup_derived_face (f, face_name, 0, base_face_id, 1); |
dc91a0ed KS |
7780 | if (face_id >= 0) |
7781 | return face_id; | |
7782 | return base_face_id; | |
7783 | } | |
7784 | ||
fd998c7f KS |
7785 | /* Begin with attributes from the base face. */ |
7786 | bcopy (base_face->lface, attrs, sizeof attrs); | |
7787 | ||
7788 | if (!NILP (face_name)) | |
7789 | { | |
7790 | if (!merge_named_face (f, face_name, attrs, 0)) | |
7791 | return base_face_id; | |
7792 | } | |
7793 | else | |
7794 | { | |
7795 | struct face *face; | |
dc91a0ed KS |
7796 | if (face_id < 0) |
7797 | return base_face_id; | |
fd998c7f KS |
7798 | face = FACE_FROM_ID (f, face_id); |
7799 | if (!face) | |
7800 | return base_face_id; | |
7801 | merge_face_vectors (f, face->lface, attrs, 0); | |
7802 | } | |
7803 | ||
7804 | /* Look up a realized face with the given face attributes, | |
7805 | or realize a new one for ASCII characters. */ | |
7806 | return lookup_face (f, attrs, 0, NULL); | |
7807 | } | |
7808 | ||
c115973b | 7809 | \f |
82641697 GM |
7810 | /*********************************************************************** |
7811 | Tests | |
7812 | ***********************************************************************/ | |
c115973b | 7813 | |
82641697 | 7814 | #if GLYPH_DEBUG |
c115973b | 7815 | |
82641697 | 7816 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 7817 | |
82641697 GM |
7818 | static void |
7819 | dump_realized_face (face) | |
7820 | struct face *face; | |
7821 | { | |
7822 | fprintf (stderr, "ID: %d\n", face->id); | |
7823 | #ifdef HAVE_X_WINDOWS | |
2defe37f | 7824 | fprintf (stderr, "gc: %ld\n", (long) face->gc); |
82641697 GM |
7825 | #endif |
7826 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
7827 | face->foreground, | |
d5db4077 | 7828 | SDATA (face->lface[LFACE_FOREGROUND_INDEX])); |
82641697 GM |
7829 | fprintf (stderr, "background: 0x%lx (%s)\n", |
7830 | face->background, | |
d5db4077 | 7831 | SDATA (face->lface[LFACE_BACKGROUND_INDEX])); |
82641697 GM |
7832 | fprintf (stderr, "font_name: %s (%s)\n", |
7833 | face->font_name, | |
d5db4077 | 7834 | SDATA (face->lface[LFACE_FAMILY_INDEX])); |
82641697 GM |
7835 | #ifdef HAVE_X_WINDOWS |
7836 | fprintf (stderr, "font = %p\n", face->font); | |
7837 | #endif | |
7838 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
7839 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
7840 | fprintf (stderr, "underline: %d (%s)\n", | |
7841 | face->underline_p, | |
d5db4077 | 7842 | SDATA (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))); |
82641697 GM |
7843 | fprintf (stderr, "hash: %d\n", face->hash); |
7844 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
7845 | } |
7846 | ||
7847 | ||
7ee72033 MB |
7848 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, doc: /* */) |
7849 | (n) | |
82641697 | 7850 | Lisp_Object n; |
c115973b | 7851 | { |
82641697 | 7852 | if (NILP (n)) |
c115973b | 7853 | { |
82641697 | 7854 | int i; |
178c5d9c | 7855 | |
82641697 GM |
7856 | fprintf (stderr, "font selection order: "); |
7857 | for (i = 0; i < DIM (font_sort_order); ++i) | |
7858 | fprintf (stderr, "%d ", font_sort_order[i]); | |
7859 | fprintf (stderr, "\n"); | |
7860 | ||
7861 | fprintf (stderr, "alternative fonts: "); | |
7862 | debug_print (Vface_alternative_font_family_alist); | |
7863 | fprintf (stderr, "\n"); | |
178c5d9c | 7864 | |
c0617987 | 7865 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 7866 | Fdump_face (make_number (i)); |
c115973b JB |
7867 | } |
7868 | else | |
f5e278c7 | 7869 | { |
82641697 | 7870 | struct face *face; |
b7826503 | 7871 | CHECK_NUMBER (n); |
c0617987 | 7872 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
7873 | if (face == NULL) |
7874 | error ("Not a valid face"); | |
7875 | dump_realized_face (face); | |
f5e278c7 | 7876 | } |
178c5d9c | 7877 | |
c115973b JB |
7878 | return Qnil; |
7879 | } | |
b5c53576 | 7880 | |
b5c53576 | 7881 | |
82641697 | 7882 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
7ee72033 MB |
7883 | 0, 0, 0, doc: /* */) |
7884 | () | |
b5c53576 | 7885 | { |
82641697 GM |
7886 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
7887 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
7888 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
7889 | return Qnil; | |
b5c53576 RS |
7890 | } |
7891 | ||
82641697 GM |
7892 | #endif /* GLYPH_DEBUG != 0 */ |
7893 | ||
b5c53576 | 7894 | |
c115973b | 7895 | \f |
82641697 GM |
7896 | /*********************************************************************** |
7897 | Initialization | |
7898 | ***********************************************************************/ | |
cb637678 | 7899 | |
c115973b | 7900 | void |
f211082d | 7901 | syms_of_xfaces () |
c115973b | 7902 | { |
f211082d JB |
7903 | Qface = intern ("face"); |
7904 | staticpro (&Qface); | |
46b00436 KS |
7905 | Qface_no_inherit = intern ("face-no-inherit"); |
7906 | staticpro (&Qface_no_inherit); | |
fef04523 GM |
7907 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
7908 | staticpro (&Qbitmap_spec_p); | |
c20577bc JL |
7909 | Qframe_set_background_mode = intern ("frame-set-background-mode"); |
7910 | staticpro (&Qframe_set_background_mode); | |
178c5d9c | 7911 | |
82641697 GM |
7912 | /* Lisp face attribute keywords. */ |
7913 | QCfamily = intern (":family"); | |
7914 | staticpro (&QCfamily); | |
7915 | QCheight = intern (":height"); | |
7916 | staticpro (&QCheight); | |
7917 | QCweight = intern (":weight"); | |
7918 | staticpro (&QCweight); | |
7919 | QCslant = intern (":slant"); | |
7920 | staticpro (&QCslant); | |
7921 | QCunderline = intern (":underline"); | |
7922 | staticpro (&QCunderline); | |
7923 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 7924 | staticpro (&QCinverse_video); |
82641697 GM |
7925 | QCreverse_video = intern (":reverse-video"); |
7926 | staticpro (&QCreverse_video); | |
7927 | QCforeground = intern (":foreground"); | |
7928 | staticpro (&QCforeground); | |
7929 | QCbackground = intern (":background"); | |
7930 | staticpro (&QCbackground); | |
7931 | QCstipple = intern (":stipple");; | |
7932 | staticpro (&QCstipple); | |
7933 | QCwidth = intern (":width"); | |
7934 | staticpro (&QCwidth); | |
7935 | QCfont = intern (":font"); | |
7936 | staticpro (&QCfont); | |
7937 | QCbold = intern (":bold"); | |
7938 | staticpro (&QCbold); | |
7939 | QCitalic = intern (":italic"); | |
7940 | staticpro (&QCitalic); | |
7941 | QCoverline = intern (":overline"); | |
7942 | staticpro (&QCoverline); | |
7943 | QCstrike_through = intern (":strike-through"); | |
7944 | staticpro (&QCstrike_through); | |
7945 | QCbox = intern (":box"); | |
7946 | staticpro (&QCbox); | |
2c20458f MB |
7947 | QCinherit = intern (":inherit"); |
7948 | staticpro (&QCinherit); | |
82641697 GM |
7949 | |
7950 | /* Symbols used for Lisp face attribute values. */ | |
7951 | QCcolor = intern (":color"); | |
7952 | staticpro (&QCcolor); | |
7953 | QCline_width = intern (":line-width"); | |
7954 | staticpro (&QCline_width); | |
7955 | QCstyle = intern (":style"); | |
7956 | staticpro (&QCstyle); | |
7957 | Qreleased_button = intern ("released-button"); | |
7958 | staticpro (&Qreleased_button); | |
7959 | Qpressed_button = intern ("pressed-button"); | |
7960 | staticpro (&Qpressed_button); | |
7961 | Qnormal = intern ("normal"); | |
7962 | staticpro (&Qnormal); | |
7963 | Qultra_light = intern ("ultra-light"); | |
7964 | staticpro (&Qultra_light); | |
7965 | Qextra_light = intern ("extra-light"); | |
7966 | staticpro (&Qextra_light); | |
7967 | Qlight = intern ("light"); | |
7968 | staticpro (&Qlight); | |
7969 | Qsemi_light = intern ("semi-light"); | |
7970 | staticpro (&Qsemi_light); | |
7971 | Qsemi_bold = intern ("semi-bold"); | |
7972 | staticpro (&Qsemi_bold); | |
7973 | Qbold = intern ("bold"); | |
7974 | staticpro (&Qbold); | |
7975 | Qextra_bold = intern ("extra-bold"); | |
7976 | staticpro (&Qextra_bold); | |
7977 | Qultra_bold = intern ("ultra-bold"); | |
7978 | staticpro (&Qultra_bold); | |
7979 | Qoblique = intern ("oblique"); | |
7980 | staticpro (&Qoblique); | |
7981 | Qitalic = intern ("italic"); | |
7982 | staticpro (&Qitalic); | |
7983 | Qreverse_oblique = intern ("reverse-oblique"); | |
7984 | staticpro (&Qreverse_oblique); | |
7985 | Qreverse_italic = intern ("reverse-italic"); | |
7986 | staticpro (&Qreverse_italic); | |
7987 | Qultra_condensed = intern ("ultra-condensed"); | |
7988 | staticpro (&Qultra_condensed); | |
7989 | Qextra_condensed = intern ("extra-condensed"); | |
7990 | staticpro (&Qextra_condensed); | |
7991 | Qcondensed = intern ("condensed"); | |
7992 | staticpro (&Qcondensed); | |
7993 | Qsemi_condensed = intern ("semi-condensed"); | |
7994 | staticpro (&Qsemi_condensed); | |
7995 | Qsemi_expanded = intern ("semi-expanded"); | |
7996 | staticpro (&Qsemi_expanded); | |
7997 | Qexpanded = intern ("expanded"); | |
7998 | staticpro (&Qexpanded); | |
7999 | Qextra_expanded = intern ("extra-expanded"); | |
8000 | staticpro (&Qextra_expanded); | |
8001 | Qultra_expanded = intern ("ultra-expanded"); | |
8002 | staticpro (&Qultra_expanded); | |
8003 | Qbackground_color = intern ("background-color"); | |
8004 | staticpro (&Qbackground_color); | |
8005 | Qforeground_color = intern ("foreground-color"); | |
8006 | staticpro (&Qforeground_color); | |
8007 | Qunspecified = intern ("unspecified"); | |
8008 | staticpro (&Qunspecified); | |
8009 | ||
92610620 GM |
8010 | Qface_alias = intern ("face-alias"); |
8011 | staticpro (&Qface_alias); | |
82641697 GM |
8012 | Qdefault = intern ("default"); |
8013 | staticpro (&Qdefault); | |
9ea173e8 GM |
8014 | Qtool_bar = intern ("tool-bar"); |
8015 | staticpro (&Qtool_bar); | |
82641697 GM |
8016 | Qregion = intern ("region"); |
8017 | staticpro (&Qregion); | |
8bd201d6 GM |
8018 | Qfringe = intern ("fringe"); |
8019 | staticpro (&Qfringe); | |
045dee35 GM |
8020 | Qheader_line = intern ("header-line"); |
8021 | staticpro (&Qheader_line); | |
8bd201d6 GM |
8022 | Qscroll_bar = intern ("scroll-bar"); |
8023 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
8024 | Qmenu = intern ("menu"); |
8025 | staticpro (&Qmenu); | |
8bd201d6 GM |
8026 | Qcursor = intern ("cursor"); |
8027 | staticpro (&Qcursor); | |
8028 | Qborder = intern ("border"); | |
8029 | staticpro (&Qborder); | |
8030 | Qmouse = intern ("mouse"); | |
8031 | staticpro (&Qmouse); | |
039b6394 KS |
8032 | Qmode_line_inactive = intern ("mode-line-inactive"); |
8033 | staticpro (&Qmode_line_inactive); | |
53abc3bf MB |
8034 | Qvertical_border = intern ("vertical-border"); |
8035 | staticpro (&Qvertical_border); | |
2d764c78 EZ |
8036 | Qtty_color_desc = intern ("tty-color-desc"); |
8037 | staticpro (&Qtty_color_desc); | |
b35df831 MB |
8038 | Qtty_color_standard_values = intern ("tty-color-standard-values"); |
8039 | staticpro (&Qtty_color_standard_values); | |
2d764c78 EZ |
8040 | Qtty_color_by_index = intern ("tty-color-by-index"); |
8041 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
8042 | Qtty_color_alist = intern ("tty-color-alist"); |
8043 | staticpro (&Qtty_color_alist); | |
eeffb293 GM |
8044 | Qscalable_fonts_allowed = intern ("scalable-fonts-allowed"); |
8045 | staticpro (&Qscalable_fonts_allowed); | |
82641697 | 8046 | |
dbc968b8 GM |
8047 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
8048 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
8049 | Vface_alternative_font_family_alist = Qnil; |
8050 | staticpro (&Vface_alternative_font_family_alist); | |
32fcc231 GM |
8051 | Vface_alternative_font_registry_alist = Qnil; |
8052 | staticpro (&Vface_alternative_font_registry_alist); | |
434b9cc5 | 8053 | |
82641697 GM |
8054 | defsubr (&Sinternal_make_lisp_face); |
8055 | defsubr (&Sinternal_lisp_face_p); | |
8056 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 8057 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 8058 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 8059 | #endif |
ea4fa0af GM |
8060 | defsubr (&Scolor_gray_p); |
8061 | defsubr (&Scolor_supported_p); | |
cdfaafa9 MB |
8062 | defsubr (&Sface_attribute_relative_p); |
8063 | defsubr (&Smerge_face_attribute); | |
82641697 GM |
8064 | defsubr (&Sinternal_get_lisp_face_attribute); |
8065 | defsubr (&Sinternal_lisp_face_attribute_values); | |
8066 | defsubr (&Sinternal_lisp_face_equal_p); | |
8067 | defsubr (&Sinternal_lisp_face_empty_p); | |
8068 | defsubr (&Sinternal_copy_lisp_face); | |
8069 | defsubr (&Sinternal_merge_in_global_face); | |
8070 | defsubr (&Sface_font); | |
8071 | defsubr (&Sframe_face_alist); | |
9717e36c | 8072 | defsubr (&Sdisplay_supports_face_attributes_p); |
b35df831 | 8073 | defsubr (&Scolor_distance); |
82641697 GM |
8074 | defsubr (&Sinternal_set_font_selection_order); |
8075 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
32fcc231 | 8076 | defsubr (&Sinternal_set_alternative_font_registry_alist); |
f6608d5c | 8077 | defsubr (&Sface_attributes_as_vector); |
82641697 GM |
8078 | #if GLYPH_DEBUG |
8079 | defsubr (&Sdump_face); | |
8080 | defsubr (&Sshow_face_resources); | |
8081 | #endif /* GLYPH_DEBUG */ | |
8082 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 8083 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 8084 | |
38426dee | 8085 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
8086 | defsubr (&Sdump_colors); |
8087 | #endif | |
8088 | ||
7ee72033 MB |
8089 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
8090 | doc: /* *Limit for font matching. | |
228299fa GM |
8091 | If an integer > 0, font matching functions won't load more than |
8092 | that number of fonts when searching for a matching font. */); | |
057df17c GM |
8093 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); |
8094 | ||
7ee72033 MB |
8095 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
8096 | doc: /* List of global face definitions (for internal use only.) */); | |
82641697 | 8097 | Vface_new_frame_defaults = Qnil; |
178c5d9c | 8098 | |
7ee72033 MB |
8099 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
8100 | doc: /* *Default stipple pattern used on monochrome displays. | |
228299fa GM |
8101 | This stipple pattern is used on monochrome displays |
8102 | instead of shades of gray for a face background color. | |
8103 | See `set-face-stipple' for possible values for this variable. */); | |
82641697 GM |
8104 | Vface_default_stipple = build_string ("gray3"); |
8105 | ||
7ee72033 MB |
8106 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
8107 | doc: /* An alist of defined terminal colors and their RGB values. */); | |
ae4b4ba5 GM |
8108 | Vtty_defined_color_alist = Qnil; |
8109 | ||
7ee72033 MB |
8110 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
8111 | doc: /* Allowed scalable fonts. | |
228299fa GM |
8112 | A value of nil means don't allow any scalable fonts. |
8113 | A value of t means allow any scalable font. | |
8114 | Otherwise, value must be a list of regular expressions. A font may be | |
8115 | scaled if its name matches a regular expression in the list. | |
8116 | Note that if value is nil, a scalable font might still be used, if no | |
8117 | other font of the appropriate family and registry is available. */); | |
3cf80731 | 8118 | Vscalable_fonts_allowed = Qnil; |
b5c53576 | 8119 | |
7ee72033 MB |
8120 | DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts, |
8121 | doc: /* List of ignored fonts. | |
228299fa GM |
8122 | Each element is a regular expression that matches names of fonts to |
8123 | ignore. */); | |
c824bfbc KH |
8124 | Vface_ignored_fonts = Qnil; |
8125 | ||
f70400f2 KH |
8126 | DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist, |
8127 | doc: /* Alist of fonts vs the rescaling factors. | |
8128 | Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where | |
8129 | FONT-NAME-PATTERN is a regular expression matching a font name, and | |
8130 | RESCALE-RATIO is a floating point number to specify how much larger | |
8131 | \(or smaller) font we should use. For instance, if a face requests | |
8132 | a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */); | |
8133 | Vface_font_rescale_alist = Qnil; | |
8134 | ||
c3cee013 | 8135 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 8136 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
8137 | defsubr (&Sx_list_fonts); |
8138 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 8139 | defsubr (&Sx_family_fonts); |
82641697 | 8140 | defsubr (&Sx_font_family_list); |
c3cee013 | 8141 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 8142 | } |
ab5796a9 MB |
8143 | |
8144 | /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749 | |
8145 | (do not change this comment) */ |