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82641697 GM |
1 | /* xfaces.c -- "Face" primitives. |
2 | Copyright (C) 1993, 1994, 1998, 1999 Free Software Foundation. | |
7b7739b1 | 3 | |
c115973b JB |
4 | This file is part of GNU Emacs. |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b7739b1 | 8 | the Free Software Foundation; either version 2, or (at your option) |
c115973b JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
c115973b | 20 | |
82641697 GM |
21 | /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */ |
22 | ||
23 | /* Faces. | |
24 | ||
25 | When using Emacs with X, the display style of characters can be | |
26 | changed by defining `faces'. Each face can specify the following | |
27 | display attributes: | |
28 | ||
39506348 | 29 | 1. Font family name. |
82641697 GM |
30 | |
31 | 2. Relative proportionate width, aka character set width or set | |
32 | width (swidth), e.g. `semi-compressed'. | |
33 | ||
39506348 | 34 | 3. Font height in 1/10pt. |
82641697 GM |
35 | |
36 | 4. Font weight, e.g. `bold'. | |
37 | ||
38 | 5. Font slant, e.g. `italic'. | |
39 | ||
40 | 6. Foreground color. | |
41 | ||
42 | 7. Background color. | |
43 | ||
44 | 8. Whether or not characters should be underlined, and in what color. | |
45 | ||
46 | 9. Whether or not characters should be displayed in inverse video. | |
47 | ||
48 | 10. A background stipple, a bitmap. | |
49 | ||
50 | 11. Whether or not characters should be overlined, and in what color. | |
51 | ||
52 | 12. Whether or not characters should be strike-through, and in what | |
53 | color. | |
54 | ||
55 | 13. Whether or not a box should be drawn around characters, the box | |
56 | type, and, for simple boxes, in what color. | |
57 | ||
39506348 KH |
58 | 14. Font or fontset pattern, or nil. This is a special attribute. |
59 | When this attribyte is specified, the face uses a font opened by | |
60 | that pattern as is. In addition, all the other font-related | |
61 | attributes (1st thru 5th) are generated from the opened font name. | |
62 | On the other hand, if one of the other font-related attributes are | |
63 | specified, this attribute is set to nil. In that case, the face | |
64 | doesn't inherit this attribute from the `default' face, and uses a | |
65 | font determined by the other attributes (those may be inherited | |
66 | from the `default' face). | |
67 | ||
82641697 GM |
68 | Faces are frame-local by nature because Emacs allows to define the |
69 | same named face (face names are symbols) differently for different | |
70 | frames. Each frame has an alist of face definitions for all named | |
71 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
72 | with the symbol `face' in slot 0, and a slot for each of the face |
73 | attributes mentioned above. | |
82641697 GM |
74 | |
75 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
76 | definitions from this list are used to initialize faces of newly | |
77 | created frames. | |
78 | ||
79 | A face doesn't have to specify all attributes. Those not specified | |
39506348 KH |
80 | have a value of `unspecified'. Faces specifying all attributes but |
81 | the 14th are called `fully-specified'. | |
82641697 GM |
82 | |
83 | ||
84 | Face merging. | |
85 | ||
86 | The display style of a given character in the text is determined by | |
87 | combining several faces. This process is called `face merging'. | |
88 | Any aspect of the display style that isn't specified by overlays or | |
89 | text properties is taken from the `default' face. Since it is made | |
90 | sure that the default face is always fully-specified, face merging | |
91 | always results in a fully-specified face. | |
92 | ||
93 | ||
94 | Face realization. | |
95 | ||
96 | After all face attributes for a character have been determined by | |
97 | merging faces of that character, that face is `realized'. The | |
98 | realization process maps face attributes to what is physically | |
99 | available on the system where Emacs runs. The result is a | |
100 | `realized face' in form of a struct face which is stored in the | |
101 | face cache of the frame on which it was realized. | |
102 | ||
39506348 KH |
103 | Face realization is done in the context of the character to display |
104 | because different fonts may be used for different characters. In | |
105 | other words, for characters that have different font | |
106 | specifications, different realized faces are needed to display | |
82641697 GM |
107 | them. |
108 | ||
39506348 KH |
109 | Font specification is done by fontsets. See the comment in |
110 | fontset.c for the details. In the current implementation, all ASCII | |
111 | characters share the same font in a fontset. | |
112 | ||
113 | Faces are at first realized for ASCII characters, and, at that | |
114 | time, assigned a specific realized fontset. Hereafter, we call | |
115 | such a face as `ASCII face'. When a face for a multibyte character | |
116 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
117 | that has the same attributes other than font-related ones. | |
118 | ||
119 | Thus, all realzied face have a realized fontset. | |
82641697 GM |
120 | |
121 | ||
122 | Unibyte text. | |
123 | ||
39506348 KH |
124 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
125 | font as ASCII characters. That is because it is expected that | |
126 | unibyte text users specify a font that is suitable both for ASCII | |
127 | and raw 8-bit characters. | |
128 | ||
82641697 GM |
129 | |
130 | Font selection. | |
131 | ||
132 | Font selection tries to find the best available matching font for a | |
39506348 | 133 | given (character, face) combination. |
82641697 | 134 | |
39506348 KH |
135 | If the face specifies a fontset name, that fontset determines a |
136 | pattern for fonts of the given character. If the face specifies a | |
137 | font name or the other font-related attributes, a fontset is | |
138 | realized from the default fontset. In that case, that | |
139 | specification determines a pattern for ASCII characters and the | |
140 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
141 | |
142 | Available fonts on the system on which Emacs runs are then matched | |
143 | against the font pattern. The result of font selection is the best | |
144 | match for the given face attributes in this font list. | |
145 | ||
146 | Font selection can be influenced by the user. | |
147 | ||
148 | 1. The user can specify the relative importance he gives the face | |
149 | attributes width, height, weight, and slant by setting | |
150 | face-font-selection-order (faces.el) to a list of face attribute | |
151 | names. The default is '(:width :height :weight :slant), and means | |
152 | that font selection first tries to find a good match for the font | |
153 | width specified by a face, then---within fonts with that | |
154 | width---tries to find a best match for the specified font height, | |
155 | etc. | |
156 | ||
157 | 2. Setting face-alternative-font-family-alist allows the user to | |
158 | specify alternative font families to try if a family specified by a | |
159 | face doesn't exist. | |
160 | ||
161 | ||
39506348 KH |
162 | Character compositition. |
163 | ||
164 | Usually, the realization process is already finished when Emacs | |
165 | actually reflects the desired glyph matrix on the screen. However, | |
166 | on displaying a composition (sequence of characters to be composed | |
167 | on the screen), a suitable font for the components of the | |
168 | composition is selected and realized while drawing them on the | |
169 | screen, i.e. the realization process is delayed but in principle | |
170 | the same. | |
82641697 GM |
171 | |
172 | ||
173 | Initialization of basic faces. | |
174 | ||
175 | The faces `default', `modeline' are considered `basic faces'. | |
176 | When redisplay happens the first time for a newly created frame, | |
177 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
178 | used to fill in unspecified attributes of the default face. */ | |
179 | ||
180 | /* Define SCALABLE_FONTS to a non-zero value to enable scalable | |
181 | font use. Define it to zero to disable scalable font use. | |
182 | ||
183 | Use of too many or too large scalable fonts can crash XFree86 | |
184 | servers. That's why I've put the code dealing with scalable fonts | |
185 | in #if's. */ | |
186 | ||
187 | #define SCALABLE_FONTS 1 | |
7b7739b1 | 188 | |
68c45bf0 | 189 | #include <config.h> |
c115973b JB |
190 | #include <sys/types.h> |
191 | #include <sys/stat.h> | |
c115973b | 192 | #include "lisp.h" |
a8517066 | 193 | #include "charset.h" |
b5c53576 RS |
194 | #include "frame.h" |
195 | ||
87485d6f | 196 | #ifdef HAVE_X_WINDOWS |
c115973b | 197 | #include "xterm.h" |
a8517066 | 198 | #include "fontset.h" |
c7ae3284 GM |
199 | #ifdef USE_MOTIF |
200 | #include <Xm/Xm.h> | |
201 | #include <Xm/XmStrDefs.h> | |
202 | #endif /* USE_MOTIF */ | |
87485d6f | 203 | #endif |
82641697 | 204 | |
87485d6f MW |
205 | #ifdef MSDOS |
206 | #include "dosfns.h" | |
207 | #endif | |
82641697 | 208 | |
c3cee013 JR |
209 | #ifdef WINDOWSNT |
210 | #include "w32term.h" | |
211 | #include "fontset.h" | |
212 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
213 | code with #ifdef blocks. */ | |
214 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO | |
215 | #define x_display_info w32_display_info | |
216 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
217 | #define check_x check_w32 | |
218 | #define x_list_fonts w32_list_fonts | |
219 | #define GCGraphicsExposures 0 | |
220 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
221 | not maximum as on X. Redefine here. */ | |
222 | #define FONT_WIDTH FONT_MAX_WIDTH | |
223 | #endif | |
224 | ||
c115973b | 225 | #include "buffer.h" |
f211082d | 226 | #include "dispextern.h" |
357f32fc | 227 | #include "blockinput.h" |
b6d40e46 | 228 | #include "window.h" |
bde7c500 | 229 | #include "intervals.h" |
c115973b | 230 | |
87485d6f | 231 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
232 | |
233 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
234 | time.h. On some such systems, Xos.h tries to redefine struct |
235 | timeval and struct timezone if USG is #defined while it is | |
236 | #included. */ | |
657070ac | 237 | |
82641697 | 238 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 239 | #include <time.h> |
657070ac JB |
240 | #undef USG |
241 | #include <X11/Xos.h> | |
242 | #define USG | |
e11d186d | 243 | #define __TIMEVAL__ |
82641697 GM |
244 | #else /* not XOS_NEEDS_TIME_H */ |
245 | #include <X11/Xos.h> | |
246 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 247 | |
82641697 | 248 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 249 | |
82641697 | 250 | #include <stdio.h> |
82641697 GM |
251 | #include <ctype.h> |
252 | #include "keyboard.h" | |
c115973b | 253 | |
82641697 GM |
254 | #ifndef max |
255 | #define max(A, B) ((A) > (B) ? (A) : (B)) | |
256 | #define min(A, B) ((A) < (B) ? (A) : (B)) | |
257 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
657070ac | 258 | #endif |
cb637678 | 259 | |
82641697 GM |
260 | /* Non-zero if face attribute ATTR is unspecified. */ |
261 | ||
262 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
263 | ||
264 | /* Value is the number of elements of VECTOR. */ | |
265 | ||
266 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
267 | ||
268 | /* Make a copy of string S on the stack using alloca. Value is a pointer | |
269 | to the copy. */ | |
270 | ||
271 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 272 | |
82641697 GM |
273 | /* Make a copy of the contents of Lisp string S on the stack using |
274 | alloca. Value is a pointer to the copy. */ | |
275 | ||
276 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
277 | ||
278 | /* Size of hash table of realized faces in face caches (should be a | |
279 | prime number). */ | |
280 | ||
281 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
282 | ||
2d764c78 EZ |
283 | /* A definition of XColor for non-X frames. */ |
284 | #ifndef HAVE_X_WINDOWS | |
285 | typedef struct { | |
286 | unsigned long pixel; | |
287 | unsigned short red, green, blue; | |
288 | char flags; | |
289 | char pad; | |
290 | } XColor; | |
291 | #endif | |
292 | ||
82641697 GM |
293 | /* Keyword symbols used for face attribute names. */ |
294 | ||
295 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
296 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
297 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
298 | Lisp_Object QCreverse_video; | |
299 | Lisp_Object QCoverline, QCstrike_through, QCbox; | |
300 | ||
301 | /* Symbols used for attribute values. */ | |
302 | ||
303 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
304 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
305 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
306 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
307 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
308 | Lisp_Object Qultra_expanded; | |
309 | Lisp_Object Qreleased_button, Qpressed_button; | |
310 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
311 | Lisp_Object Qunspecified; |
312 | ||
313 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 314 | |
92610620 GM |
315 | /* The name of the function to call when the background of the frame |
316 | has changed, frame_update_face_colors. */ | |
317 | ||
318 | Lisp_Object Qframe_update_face_colors; | |
319 | ||
82641697 GM |
320 | /* Names of basic faces. */ |
321 | ||
fb4927c4 | 322 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 323 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
fb4927c4 | 324 | extern Lisp_Object Qmode_line; |
8bd201d6 | 325 | |
92610620 GM |
326 | /* The symbol `face-alias'. A symbols having that property is an |
327 | alias for another face. Value of the property is the name of | |
328 | the aliased face. */ | |
329 | ||
330 | Lisp_Object Qface_alias; | |
331 | ||
8bd201d6 GM |
332 | /* Names of frame parameters related to faces. */ |
333 | ||
334 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
335 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
336 | |
337 | /* Default stipple pattern used on monochrome displays. This stipple | |
338 | pattern is used on monochrome displays instead of shades of gray | |
339 | for a face background color. See `set-face-stipple' for possible | |
340 | values for this variable. */ | |
341 | ||
342 | Lisp_Object Vface_default_stipple; | |
343 | ||
82641697 GM |
344 | /* Alist of alternative font families. Each element is of the form |
345 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
346 | try FAMILY1, then FAMILY2, ... */ | |
347 | ||
348 | Lisp_Object Vface_alternative_font_family_alist; | |
349 | ||
350 | /* Allowed scalable fonts. A value of nil means don't allow any | |
351 | scalable fonts. A value of t means allow the use of any scalable | |
352 | font. Otherwise, value must be a list of regular expressions. A | |
353 | font may be scaled if its name matches a regular expression in the | |
354 | list. */ | |
355 | ||
356 | #if SCALABLE_FONTS | |
357 | Lisp_Object Vscalable_fonts_allowed; | |
358 | #endif | |
359 | ||
057df17c GM |
360 | /* Maximum number of fonts to consider in font_list. If not an |
361 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
362 | ||
363 | Lisp_Object Vfont_list_limit; | |
364 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
365 | ||
82641697 GM |
366 | /* The symbols `foreground-color' and `background-color' which can be |
367 | used as part of a `face' property. This is for compatibility with | |
368 | Emacs 20.2. */ | |
369 | ||
370 | Lisp_Object Qforeground_color, Qbackground_color; | |
371 | ||
372 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 373 | |
ff83dbb1 | 374 | Lisp_Object Qface; |
82641697 GM |
375 | extern Lisp_Object Qmouse_face; |
376 | ||
377 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
378 | ||
fef04523 | 379 | Lisp_Object Qbitmap_spec_p; |
f211082d | 380 | |
82641697 GM |
381 | /* Alist of global face definitions. Each element is of the form |
382 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
383 | is a Lisp vector of face attributes. These faces are used | |
384 | to initialize faces for new frames. */ | |
cb637678 | 385 | |
82641697 | 386 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 387 | |
82641697 | 388 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 389 | |
82641697 | 390 | static int next_lface_id; |
c115973b | 391 | |
82641697 | 392 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 393 | |
82641697 GM |
394 | static Lisp_Object *lface_id_to_name; |
395 | static int lface_id_to_name_size; | |
c115973b | 396 | |
2d764c78 EZ |
397 | /* tty color-related functions (defined on lisp/term/tty-colors.el). */ |
398 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; | |
82641697 GM |
399 | |
400 | /* Counter for calls to clear_face_cache. If this counter reaches | |
401 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
402 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
403 | ||
404 | static int clear_font_table_count; | |
405 | #define CLEAR_FONT_TABLE_COUNT 100 | |
406 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
407 | ||
408 | /* Non-zero means face attributes have been changed since the last | |
409 | redisplay. Used in redisplay_internal. */ | |
410 | ||
411 | int face_change_count; | |
412 | ||
413 | /* The total number of colors currently allocated. */ | |
414 | ||
415 | #if GLYPH_DEBUG | |
416 | static int ncolors_allocated; | |
417 | static int npixmaps_allocated; | |
418 | static int ngcs; | |
419 | #endif | |
420 | ||
421 | ||
422 | \f | |
423 | /* Function prototypes. */ | |
424 | ||
425 | struct font_name; | |
426 | struct table_entry; | |
427 | ||
c7ae3284 | 428 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
82641697 GM |
429 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); |
430 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
431 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
432 | int)); | |
433 | static int first_font_matching P_ ((struct frame *f, char *, | |
434 | struct font_name *)); | |
435 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
436 | struct font_name *, int, int, int)); | |
437 | static int font_scalable_p P_ ((struct font_name *)); | |
82641697 GM |
438 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
439 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
440 | static char *xstrdup P_ ((char *)); | |
441 | static unsigned char *xstrlwr P_ ((unsigned char *)); | |
442 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 443 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 444 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
445 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
446 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
447 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
448 | static char *build_font_name P_ ((struct font_name *)); | |
449 | static void free_font_names P_ ((struct font_name *, int)); | |
450 | static int sorted_font_list P_ ((struct frame *, char *, | |
451 | int (*cmpfn) P_ ((const void *, const void *)), | |
452 | struct font_name **)); | |
39506348 KH |
453 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
454 | Lisp_Object, struct font_name **)); | |
455 | static int try_font_list P_ ((struct frame *, Lisp_Object *, Lisp_Object, | |
456 | Lisp_Object, Lisp_Object, struct font_name **)); | |
82641697 | 457 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
458 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
459 | struct face *, int)); | |
82641697 | 460 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 461 | Lisp_Object *, int, struct face *)); |
82641697 GM |
462 | static struct face *realize_tty_face P_ ((struct face_cache *, |
463 | Lisp_Object *, int)); | |
464 | static int realize_basic_faces P_ ((struct frame *)); | |
465 | static int realize_default_face P_ ((struct frame *)); | |
466 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
467 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
468 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
469 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
470 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
471 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
472 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
473 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
474 | static void clear_face_gcs P_ ((struct face_cache *)); | |
475 | static void free_face_cache P_ ((struct face_cache *)); | |
476 | static int face_numeric_weight P_ ((Lisp_Object)); | |
477 | static int face_numeric_slant P_ ((Lisp_Object)); | |
478 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 KH |
479 | static int face_fontset P_ ((Lisp_Object *)); |
480 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int)); | |
82641697 GM |
481 | static void merge_face_vectors P_ ((Lisp_Object *from, Lisp_Object *)); |
482 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, | |
483 | Lisp_Object)); | |
39506348 KH |
484 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
485 | Lisp_Object, int, int)); | |
82641697 | 486 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 487 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
488 | static void free_realized_faces P_ ((struct face_cache *)); |
489 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
490 | struct font_name *, int)); | |
491 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
492 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
493 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
494 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
495 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
496 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
497 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
498 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
499 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
500 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
501 | int, int)); | |
502 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
503 | struct font_name *, int, int)); | |
504 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, | |
505 | struct font_name *, int)); | |
506 | ||
c3cee013 | 507 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
508 | |
509 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
510 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
511 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
512 | int (*cmpfn) P_ ((const void *, const void *)))); | |
513 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
514 | static void x_free_gc P_ ((struct frame *, GC)); | |
515 | static void clear_font_table P_ ((struct frame *)); | |
516 | ||
c3cee013 JR |
517 | #ifdef WINDOWSNT |
518 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
519 | #endif /* WINDOWSNT */ | |
520 | ||
521 | #endif /* HAVE_WINDOW_SYSTEM */ | |
c115973b | 522 | |
cb637678 | 523 | \f |
82641697 GM |
524 | /*********************************************************************** |
525 | Utilities | |
526 | ***********************************************************************/ | |
c115973b | 527 | |
87485d6f | 528 | #ifdef HAVE_X_WINDOWS |
cb637678 | 529 | |
a435fc2a GM |
530 | #ifdef DEBUG_X_COLORS |
531 | ||
532 | /* The following is a poor mans infrastructure for debugging X color | |
533 | allocation problems on displays with PseudoColor-8. Some X servers | |
534 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
535 | color reference counts completely so that they don't signal an | |
536 | error when a color is freed whose reference count is already 0. | |
537 | Other X servers do. To help me debug this, the following code | |
538 | implements a simple reference counting schema of its own, for a | |
539 | single display/screen. --gerd. */ | |
540 | ||
541 | /* Reference counts for pixel colors. */ | |
542 | ||
543 | int color_count[256]; | |
544 | ||
545 | /* Register color PIXEL as allocated. */ | |
546 | ||
547 | void | |
548 | register_color (pixel) | |
549 | unsigned long pixel; | |
550 | { | |
551 | xassert (pixel < 256); | |
552 | ++color_count[pixel]; | |
553 | } | |
554 | ||
555 | ||
556 | /* Register color PIXEL as deallocated. */ | |
557 | ||
558 | void | |
559 | unregister_color (pixel) | |
560 | unsigned long pixel; | |
561 | { | |
562 | xassert (pixel < 256); | |
563 | if (color_count[pixel] > 0) | |
564 | --color_count[pixel]; | |
565 | else | |
566 | abort (); | |
567 | } | |
568 | ||
569 | ||
570 | /* Register N colors from PIXELS as deallocated. */ | |
571 | ||
572 | void | |
573 | unregister_colors (pixels, n) | |
574 | unsigned long *pixels; | |
575 | int n; | |
576 | { | |
577 | int i; | |
578 | for (i = 0; i < n; ++i) | |
579 | unregister_color (pixels[i]); | |
580 | } | |
581 | ||
582 | #endif /* DEBUG_X_COLORS */ | |
583 | ||
1f847cf8 GM |
584 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
585 | color values. Interrupt input must be blocked when this function | |
586 | is called. */ | |
587 | ||
588 | void | |
589 | x_free_colors (f, pixels, npixels) | |
590 | struct frame *f; | |
591 | unsigned long *pixels; | |
592 | int npixels; | |
593 | { | |
594 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
595 | ||
596 | /* If display has an immutable color map, freeing colors is not | |
597 | necessary and some servers don't allow it. So don't do it. */ | |
598 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
599 | { | |
600 | Display *dpy = FRAME_X_DISPLAY (f); | |
27610470 GM |
601 | Colormap cmap = FRAME_X_COLORMAP (f); |
602 | Screen *screen = FRAME_X_SCREEN (f); | |
603 | int default_cmap_p = cmap == DefaultColormapOfScreen (screen); | |
604 | ||
605 | if (default_cmap_p) | |
606 | { | |
607 | /* Be paranoid. If using the default color map, don't ever | |
608 | try to free the default black and white colors. */ | |
609 | int screen_no = XScreenNumberOfScreen (screen); | |
610 | unsigned long black = BlackPixel (dpy, screen_no); | |
611 | unsigned long white = WhitePixel (dpy, screen_no); | |
612 | unsigned long *px; | |
613 | int i, j; | |
614 | ||
615 | px = (unsigned long *) alloca (npixels * sizeof *px); | |
616 | for (i = j = 0; i < npixels; ++i) | |
617 | if (pixels[i] != black && pixels[i] != white) | |
618 | px[j++] = pixels[i]; | |
619 | ||
620 | if (j) | |
a435fc2a GM |
621 | { |
622 | XFreeColors (dpy, cmap, px, j, 0); | |
623 | #ifdef DEBUG_X_COLORS | |
624 | unregister_colors (px, j); | |
625 | #endif | |
626 | } | |
27610470 GM |
627 | } |
628 | else | |
a435fc2a GM |
629 | { |
630 | XFreeColors (dpy, cmap, pixels, npixels, 0); | |
631 | #ifdef DEBUG_X_COLORS | |
632 | unregister_colors (pixels, npixels); | |
633 | #endif | |
634 | } | |
1f847cf8 GM |
635 | } |
636 | } | |
637 | ||
82641697 GM |
638 | /* Create and return a GC for use on frame F. GC values and mask |
639 | are given by XGCV and MASK. */ | |
640 | ||
641 | static INLINE GC | |
642 | x_create_gc (f, mask, xgcv) | |
cb637678 | 643 | struct frame *f; |
82641697 GM |
644 | unsigned long mask; |
645 | XGCValues *xgcv; | |
c115973b JB |
646 | { |
647 | GC gc; | |
82641697 GM |
648 | BLOCK_INPUT; |
649 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
650 | UNBLOCK_INPUT; | |
651 | IF_DEBUG (++ngcs); | |
652 | return gc; | |
653 | } | |
c115973b | 654 | |
42120bc7 | 655 | |
82641697 GM |
656 | /* Free GC which was used on frame F. */ |
657 | ||
658 | static INLINE void | |
659 | x_free_gc (f, gc) | |
660 | struct frame *f; | |
661 | GC gc; | |
662 | { | |
660ed669 | 663 | BLOCK_INPUT; |
82641697 GM |
664 | xassert (--ngcs >= 0); |
665 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
666 | UNBLOCK_INPUT; | |
667 | } | |
660ed669 | 668 | |
82641697 | 669 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 670 | |
c3cee013 JR |
671 | #ifdef WINDOWSNT |
672 | /* W32 emulation of GCs */ | |
673 | ||
674 | static INLINE GC | |
675 | x_create_gc (f, mask, xgcv) | |
676 | struct frame *f; | |
677 | unsigned long mask; | |
678 | XGCValues *xgcv; | |
679 | { | |
680 | GC gc; | |
681 | BLOCK_INPUT; | |
682 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
683 | UNBLOCK_INPUT; | |
684 | IF_DEBUG (++ngcs); | |
685 | return gc; | |
686 | } | |
687 | ||
688 | ||
689 | /* Free GC which was used on frame F. */ | |
690 | ||
691 | static INLINE void | |
692 | x_free_gc (f, gc) | |
693 | struct frame *f; | |
694 | GC gc; | |
695 | { | |
696 | BLOCK_INPUT; | |
697 | xassert (--ngcs >= 0); | |
698 | xfree (gc); | |
699 | UNBLOCK_INPUT; | |
700 | } | |
701 | ||
702 | #endif /* WINDOWSNT */ | |
660ed669 | 703 | |
82641697 GM |
704 | /* Like strdup, but uses xmalloc. */ |
705 | ||
706 | static char * | |
707 | xstrdup (s) | |
708 | char *s; | |
709 | { | |
710 | int len = strlen (s) + 1; | |
711 | char *p = (char *) xmalloc (len); | |
712 | bcopy (s, p, len); | |
713 | return p; | |
714 | } | |
660ed669 | 715 | |
660ed669 | 716 | |
82641697 GM |
717 | /* Like stricmp. Used to compare parts of font names which are in |
718 | ISO8859-1. */ | |
719 | ||
720 | int | |
721 | xstricmp (s1, s2) | |
722 | unsigned char *s1, *s2; | |
723 | { | |
724 | while (*s1 && *s2) | |
95887807 | 725 | { |
82641697 GM |
726 | unsigned char c1 = tolower (*s1); |
727 | unsigned char c2 = tolower (*s2); | |
728 | if (c1 != c2) | |
729 | return c1 < c2 ? -1 : 1; | |
730 | ++s1, ++s2; | |
95887807 | 731 | } |
cd0bb842 | 732 | |
82641697 GM |
733 | if (*s1 == 0) |
734 | return *s2 == 0 ? 0 : -1; | |
735 | return 1; | |
736 | } | |
660ed669 | 737 | |
660ed669 | 738 | |
82641697 | 739 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 740 | |
82641697 GM |
741 | static unsigned char * |
742 | xstrlwr (s) | |
743 | unsigned char *s; | |
744 | { | |
745 | unsigned char *p = s; | |
746 | ||
747 | for (p = s; *p; ++p) | |
748 | *p = tolower (*p); | |
749 | ||
750 | return s; | |
c115973b | 751 | } |
cb637678 | 752 | |
42120bc7 | 753 | |
82641697 GM |
754 | /* Signal `error' with message S, and additional argument ARG. */ |
755 | ||
756 | static void | |
757 | signal_error (s, arg) | |
758 | char *s; | |
759 | Lisp_Object arg; | |
42120bc7 | 760 | { |
82641697 GM |
761 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
762 | } | |
42120bc7 | 763 | |
82641697 | 764 | |
c0617987 GM |
765 | /* If FRAME is nil, return a pointer to the selected frame. |
766 | Otherwise, check that FRAME is a live frame, and return a pointer | |
767 | to it. NPARAM is the parameter number of FRAME, for | |
768 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
769 | Lisp function definitions. */ | |
82641697 GM |
770 | |
771 | static INLINE struct frame * | |
772 | frame_or_selected_frame (frame, nparam) | |
773 | Lisp_Object frame; | |
774 | int nparam; | |
775 | { | |
82641697 | 776 | if (NILP (frame)) |
c0617987 GM |
777 | frame = selected_frame; |
778 | ||
779 | CHECK_LIVE_FRAME (frame, nparam); | |
780 | return XFRAME (frame); | |
42120bc7 | 781 | } |
82641697 | 782 | |
42120bc7 | 783 | \f |
82641697 GM |
784 | /*********************************************************************** |
785 | Frames and faces | |
786 | ***********************************************************************/ | |
cd0bb842 | 787 | |
82641697 | 788 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 789 | |
82641697 GM |
790 | void |
791 | init_frame_faces (f) | |
cb637678 | 792 | struct frame *f; |
cb637678 | 793 | { |
82641697 GM |
794 | /* Make a face cache, if F doesn't have one. */ |
795 | if (FRAME_FACE_CACHE (f) == NULL) | |
796 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
797 | ||
c3cee013 | 798 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 799 | /* Make the image cache. */ |
c3cee013 | 800 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
801 | { |
802 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
803 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
804 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
805 | } | |
c3cee013 | 806 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 807 | |
82641697 GM |
808 | /* Realize basic faces. Must have enough information in frame |
809 | parameters to realize basic faces at this point. */ | |
810 | #ifdef HAVE_X_WINDOWS | |
811 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
812 | #endif |
813 | #ifdef WINDOWSNT | |
814 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
82641697 GM |
815 | #endif |
816 | if (!realize_basic_faces (f)) | |
817 | abort (); | |
818 | } | |
cb637678 | 819 | |
cb637678 | 820 | |
82641697 | 821 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 822 | |
82641697 GM |
823 | void |
824 | free_frame_faces (f) | |
cb637678 | 825 | struct frame *f; |
cb637678 | 826 | { |
82641697 GM |
827 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
828 | ||
829 | if (face_cache) | |
830 | { | |
831 | free_face_cache (face_cache); | |
832 | FRAME_FACE_CACHE (f) = NULL; | |
833 | } | |
660ed669 | 834 | |
c3cee013 JR |
835 | #ifdef HAVE_WINDOW_SYSTEM |
836 | if (FRAME_WINDOW_P (f)) | |
195f798e | 837 | { |
82641697 GM |
838 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
839 | if (image_cache) | |
195f798e | 840 | { |
82641697 GM |
841 | --image_cache->refcount; |
842 | if (image_cache->refcount == 0) | |
843 | free_image_cache (f); | |
195f798e RS |
844 | } |
845 | } | |
c3cee013 | 846 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
847 | } |
848 | ||
82641697 | 849 | |
8bd201d6 GM |
850 | /* Clear face caches, and recompute basic faces for frame F. Call |
851 | this after changing frame parameters on which those faces depend, | |
852 | or when realized faces have been freed due to changing attributes | |
853 | of named faces. */ | |
82641697 GM |
854 | |
855 | void | |
856 | recompute_basic_faces (f) | |
cb637678 | 857 | struct frame *f; |
cb637678 | 858 | { |
82641697 GM |
859 | if (FRAME_FACE_CACHE (f)) |
860 | { | |
8bd201d6 | 861 | clear_face_cache (0); |
18df9369 GM |
862 | if (!realize_basic_faces (f)) |
863 | abort (); | |
82641697 GM |
864 | } |
865 | } | |
cb637678 | 866 | |
cb637678 | 867 | |
82641697 GM |
868 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
869 | try to free unused fonts, too. */ | |
cb637678 | 870 | |
adfea139 | 871 | void |
82641697 GM |
872 | clear_face_cache (clear_fonts_p) |
873 | int clear_fonts_p; | |
cb637678 | 874 | { |
c3cee013 | 875 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
876 | Lisp_Object tail, frame; |
877 | struct frame *f; | |
828e66d1 | 878 | |
82641697 GM |
879 | if (clear_fonts_p |
880 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 881 | { |
82641697 GM |
882 | /* From time to time see if we can unload some fonts. This also |
883 | frees all realized faces on all frames. Fonts needed by | |
884 | faces will be loaded again when faces are realized again. */ | |
885 | clear_font_table_count = 0; | |
195f798e | 886 | |
82641697 | 887 | FOR_EACH_FRAME (tail, frame) |
195f798e | 888 | { |
82641697 | 889 | f = XFRAME (frame); |
c3cee013 | 890 | if (FRAME_WINDOW_P (f) |
82641697 | 891 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
195f798e | 892 | { |
82641697 GM |
893 | free_all_realized_faces (frame); |
894 | clear_font_table (f); | |
895 | } | |
896 | } | |
897 | } | |
898 | else | |
899 | { | |
900 | /* Clear GCs of realized faces. */ | |
901 | FOR_EACH_FRAME (tail, frame) | |
902 | { | |
903 | f = XFRAME (frame); | |
c3cee013 | 904 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
905 | { |
906 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
907 | clear_image_cache (f, 0); | |
195f798e RS |
908 | } |
909 | } | |
828e66d1 | 910 | } |
c3cee013 | 911 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
912 | } |
913 | ||
82641697 GM |
914 | |
915 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
916 | "Clear face caches on all frames.\n\ | |
917 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
918 | (thorougly) | |
919 | Lisp_Object thorougly; | |
cd0bb842 | 920 | { |
82641697 GM |
921 | clear_face_cache (!NILP (thorougly)); |
922 | return Qnil; | |
923 | } | |
924 | ||
925 | ||
926 | ||
c3cee013 | 927 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
928 | |
929 | ||
39506348 KH |
930 | /* Remove those fonts from the font table of frame F exept for the |
931 | default ASCII font for the frame. Called from clear_face_cache | |
932 | from time to time. */ | |
82641697 GM |
933 | |
934 | static void | |
935 | clear_font_table (f) | |
936 | struct frame *f; | |
937 | { | |
938 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
82641697 GM |
939 | Lisp_Object rest, frame; |
940 | int i; | |
941 | ||
c3cee013 | 942 | xassert (FRAME_WINDOW_P (f)); |
82641697 | 943 | |
39506348 KH |
944 | /* Free those fonts that are not used by the frame F as the default. */ |
945 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
946 | { | |
947 | struct font_info *font_info = dpyinfo->font_table + i; | |
82641697 | 948 | |
39506348 KH |
949 | if (!font_info->name |
950 | || font_info->font == FRAME_FONT (f)) | |
951 | continue; | |
82641697 | 952 | |
39506348 KH |
953 | /* Free names. */ |
954 | if (font_info->full_name != font_info->name) | |
955 | xfree (font_info->full_name); | |
956 | xfree (font_info->name); | |
82641697 | 957 | |
39506348 KH |
958 | /* Free the font. */ |
959 | BLOCK_INPUT; | |
c3cee013 | 960 | #ifdef HAVE_X_WINDOWS |
39506348 | 961 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
962 | #endif |
963 | #ifdef WINDOWSNT | |
39506348 | 964 | w32_unload_font (dpyinfo, font_info->font); |
c3cee013 | 965 | #endif |
39506348 | 966 | UNBLOCK_INPUT; |
82641697 | 967 | |
39506348 KH |
968 | /* Mark font table slot free. */ |
969 | font_info->font = NULL; | |
970 | font_info->name = font_info->full_name = NULL; | |
971 | } | |
82641697 GM |
972 | } |
973 | ||
c3cee013 | 974 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
975 | |
976 | ||
977 | \f | |
978 | /*********************************************************************** | |
979 | X Pixmaps | |
980 | ***********************************************************************/ | |
981 | ||
c3cee013 | 982 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 983 | |
fef04523 GM |
984 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
985 | "Value is non-nil if OBJECT is a valid bitmap specification.\n\ | |
986 | A bitmap specification is either a string, a file name, or a list\n\ | |
987 | (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\ | |
c7ae3284 GM |
988 | HEIGHT is its height, and DATA is a string containing the bits of\n\ |
989 | the pixmap. Bits are stored row by row, each row occupies\n\ | |
990 | (WIDTH + 7)/8 bytes.") | |
82641697 GM |
991 | (object) |
992 | Lisp_Object object; | |
993 | { | |
c7ae3284 GM |
994 | int pixmap_p = 0; |
995 | ||
996 | if (STRINGP (object)) | |
997 | /* If OBJECT is a string, it's a file name. */ | |
998 | pixmap_p = 1; | |
999 | else if (CONSP (object)) | |
1000 | { | |
1001 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1002 | HEIGHT must be integers > 0, and DATA must be string large | |
1003 | enough to hold a bitmap of the specified size. */ | |
1004 | Lisp_Object width, height, data; | |
1005 | ||
1006 | height = width = data = Qnil; | |
1007 | ||
1008 | if (CONSP (object)) | |
1009 | { | |
1010 | width = XCAR (object); | |
1011 | object = XCDR (object); | |
1012 | if (CONSP (object)) | |
1013 | { | |
1014 | height = XCAR (object); | |
1015 | object = XCDR (object); | |
1016 | if (CONSP (object)) | |
1017 | data = XCAR (object); | |
1018 | } | |
1019 | } | |
cd0bb842 | 1020 | |
c7ae3284 GM |
1021 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1022 | { | |
1023 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1024 | / BITS_PER_CHAR); | |
1025 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * height) | |
1026 | pixmap_p = 1; | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1031 | } |
1032 | ||
cd0bb842 | 1033 | |
82641697 GM |
1034 | /* Load a bitmap according to NAME (which is either a file name or a |
1035 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1036 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1037 | bitmap cannot be loaded, display a message saying so, and return | |
1038 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1039 | if these pointers are not null. */ | |
cd0bb842 | 1040 | |
82641697 | 1041 | static int |
cd0bb842 | 1042 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1043 | FRAME_PTR f; |
cd0bb842 RS |
1044 | Lisp_Object name; |
1045 | unsigned int *w_ptr, *h_ptr; | |
1046 | { | |
1047 | int bitmap_id; | |
1048 | Lisp_Object tem; | |
1049 | ||
1050 | if (NILP (name)) | |
82641697 | 1051 | return 0; |
cd0bb842 | 1052 | |
fef04523 | 1053 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1054 | if (NILP (tem)) |
fef04523 | 1055 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1056 | |
1057 | BLOCK_INPUT; | |
cd0bb842 RS |
1058 | if (CONSP (name)) |
1059 | { | |
1060 | /* Decode a bitmap spec into a bitmap. */ | |
1061 | ||
1062 | int h, w; | |
1063 | Lisp_Object bits; | |
1064 | ||
1065 | w = XINT (Fcar (name)); | |
1066 | h = XINT (Fcar (Fcdr (name))); | |
1067 | bits = Fcar (Fcdr (Fcdr (name))); | |
1068 | ||
1069 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
1070 | w, h); | |
1071 | } | |
1072 | else | |
1073 | { | |
1074 | /* It must be a string -- a file name. */ | |
1075 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1076 | } | |
1077 | UNBLOCK_INPUT; | |
1078 | ||
7812a96f | 1079 | if (bitmap_id < 0) |
82641697 | 1080 | { |
1b8f7fbc | 1081 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1082 | bitmap_id = 0; |
cd0bb842 | 1083 | |
82641697 GM |
1084 | if (w_ptr) |
1085 | *w_ptr = 0; | |
1086 | if (h_ptr) | |
1087 | *h_ptr = 0; | |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | #if GLYPH_DEBUG | |
1092 | ++npixmaps_allocated; | |
1093 | #endif | |
1094 | if (w_ptr) | |
1095 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1096 | ||
1097 | if (h_ptr) | |
1098 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1099 | } | |
cd0bb842 RS |
1100 | |
1101 | return bitmap_id; | |
cb637678 | 1102 | } |
87485d6f | 1103 | |
c3cee013 | 1104 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1105 | |
87485d6f | 1106 | |
82641697 GM |
1107 | \f |
1108 | /*********************************************************************** | |
1109 | Minimum font bounds | |
1110 | ***********************************************************************/ | |
1111 | ||
c3cee013 | 1112 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1113 | |
d6fc0a22 GM |
1114 | /* Update the line_height of frame F. Return non-zero if line height |
1115 | changes. */ | |
87485d6f | 1116 | |
82641697 GM |
1117 | int |
1118 | frame_update_line_height (f) | |
87485d6f | 1119 | struct frame *f; |
87485d6f | 1120 | { |
39506348 | 1121 | int line_height, changed_p; |
d6fc0a22 | 1122 | |
39506348 | 1123 | line_height = FONT_HEIGHT (FRAME_FONT (f)); |
c3cee013 JR |
1124 | changed_p = line_height != FRAME_LINE_HEIGHT (f); |
1125 | FRAME_LINE_HEIGHT (f) = line_height; | |
82641697 | 1126 | return changed_p; |
87485d6f MW |
1127 | } |
1128 | ||
c3cee013 | 1129 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1130 | |
1131 | \f | |
1132 | /*********************************************************************** | |
1133 | Fonts | |
1134 | ***********************************************************************/ | |
1135 | ||
c3cee013 | 1136 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1137 | |
39506348 KH |
1138 | /* Load font of face FACE which is used on frame F to display |
1139 | character C. The name of the font to load is determined by lface | |
1140 | and fontset of FACE. */ | |
82641697 GM |
1141 | |
1142 | static void | |
39506348 | 1143 | load_face_font (f, face, c) |
82641697 GM |
1144 | struct frame *f; |
1145 | struct face *face; | |
39506348 | 1146 | int c; |
87485d6f | 1147 | { |
82641697 | 1148 | struct font_info *font_info = NULL; |
39506348 KH |
1149 | char *font_name; |
1150 | ||
82641697 | 1151 | face->font_info_id = -1; |
82641697 | 1152 | face->font = NULL; |
39506348 KH |
1153 | |
1154 | font_name = choose_face_font (f, face->lface, face->fontset, c); | |
1155 | if (!font_name) | |
1156 | return; | |
1157 | ||
82641697 | 1158 | BLOCK_INPUT; |
39506348 | 1159 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1160 | UNBLOCK_INPUT; |
1161 | ||
1162 | if (font_info) | |
1163 | { | |
39506348 | 1164 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1165 | face->font = font_info->font; |
1166 | face->font_name = font_info->full_name; | |
39506348 | 1167 | if (face->gc) |
82641697 | 1168 | { |
39506348 KH |
1169 | x_free_gc (f, face->gc); |
1170 | face->gc = 0; | |
82641697 GM |
1171 | } |
1172 | } | |
39506348 | 1173 | else |
1b8f7fbc | 1174 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1175 | build_string (font_name), Qnil); |
39506348 | 1176 | xfree (font_name); |
87485d6f MW |
1177 | } |
1178 | ||
c3cee013 | 1179 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1180 | |
87485d6f | 1181 | |
82641697 GM |
1182 | \f |
1183 | /*********************************************************************** | |
1184 | X Colors | |
1185 | ***********************************************************************/ | |
1186 | ||
2d764c78 EZ |
1187 | /* A version of defined_color for non-X frames. */ |
1188 | int | |
1189 | tty_defined_color (f, color_name, color_def, alloc) | |
1190 | struct frame *f; | |
1191 | char *color_name; | |
1192 | XColor *color_def; | |
1193 | int alloc; | |
1194 | { | |
1195 | Lisp_Object color_desc; | |
3a28db80 DL |
1196 | unsigned long color_idx = FACE_TTY_DEFAULT_COLOR, |
1197 | red = 0, green = 0, blue = 0; | |
2d764c78 EZ |
1198 | int status = 1; |
1199 | ||
1200 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1201 | { | |
a61c12d5 EZ |
1202 | Lisp_Object frame; |
1203 | ||
1204 | XSETFRAME (frame, f); | |
2d764c78 | 1205 | status = 0; |
a61c12d5 | 1206 | color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); |
363e4e42 | 1207 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
2d764c78 EZ |
1208 | { |
1209 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1210 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1211 | { | |
1212 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1213 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1214 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1215 | } | |
1216 | status = 1; | |
1217 | } | |
a61c12d5 | 1218 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
2d764c78 | 1219 | /* We were called early during startup, and the colors are not |
a61c12d5 | 1220 | yet set up in tty-defined-color-alist. Don't return a failure |
2d764c78 EZ |
1221 | indication, since this produces the annoying "Unable to |
1222 | load color" messages in the *Messages* buffer. */ | |
1223 | status = 1; | |
1224 | } | |
f9d2fdc4 EZ |
1225 | if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) |
1226 | { | |
1227 | if (strcmp (color_name, "unspecified-fg") == 0) | |
1228 | color_idx = FACE_TTY_DEFAULT_FG_COLOR; | |
1229 | else if (strcmp (color_name, "unspecified-bg") == 0) | |
1230 | color_idx = FACE_TTY_DEFAULT_BG_COLOR; | |
1231 | } | |
1232 | ||
3b451f74 EZ |
1233 | if (color_idx != FACE_TTY_DEFAULT_COLOR) |
1234 | status = 1; | |
1235 | ||
3a28db80 | 1236 | color_def->pixel = color_idx; |
2d764c78 EZ |
1237 | color_def->red = red; |
1238 | color_def->green = green; | |
1239 | color_def->blue = blue; | |
1240 | ||
1241 | return status; | |
1242 | } | |
1243 | ||
1244 | /* Decide if color named COLOR is valid for the display associated | |
1245 | with the frame F; if so, return the rgb values in COLOR_DEF. If | |
1246 | ALLOC is nonzero, allocate a new colormap cell. | |
1247 | ||
1248 | This does the right thing for any type of frame. */ | |
1249 | int | |
1250 | defined_color (f, color_name, color_def, alloc) | |
1251 | struct frame *f; | |
1252 | char *color_name; | |
1253 | XColor *color_def; | |
1254 | int alloc; | |
1255 | { | |
1256 | if (!FRAME_WINDOW_P (f)) | |
1257 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1258 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1259 | else if (FRAME_X_P (f)) |
1260 | return x_defined_color (f, color_name, color_def, alloc); | |
1261 | #endif | |
1262 | #ifdef WINDOWSNT | |
1263 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1264 | return w32_defined_color (f, color_name, color_def, alloc); |
1265 | #endif | |
1266 | #ifdef macintosh | |
1267 | else if (FRAME_MAC_P (f)) | |
1268 | /* FIXME: mac_defined_color doesn't exist! */ | |
1269 | return mac_defined_color (f, color_name, color_def, alloc); | |
1270 | #endif | |
1271 | else | |
1272 | abort (); | |
1273 | } | |
1274 | ||
1275 | /* Given the index of the tty color, return its name, a Lisp string. */ | |
1276 | ||
1277 | Lisp_Object | |
1278 | tty_color_name (f, idx) | |
1279 | struct frame *f; | |
1280 | int idx; | |
1281 | { | |
1282 | char *color; | |
1283 | ||
1284 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) | |
1285 | { | |
a61c12d5 EZ |
1286 | Lisp_Object frame; |
1287 | Lisp_Object coldesc; | |
1288 | ||
1289 | XSETFRAME (frame, f); | |
1290 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1291 | |
1292 | if (!NILP (coldesc)) | |
1293 | return XCAR (coldesc); | |
1294 | } | |
1295 | #ifdef MSDOS | |
1296 | /* We can have an MSDOG frame under -nw for a short window of | |
1297 | opportunity before internal_terminal_init is called. DTRT. */ | |
1298 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1299 | return msdos_stdcolor_name (idx); | |
1300 | #endif | |
1301 | ||
ef917393 EZ |
1302 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1303 | return build_string (unspecified_fg); | |
1304 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1305 | return build_string (unspecified_bg); | |
c3cee013 JR |
1306 | |
1307 | #ifdef WINDOWSNT | |
1308 | return vga_stdcolor_name (idx); | |
1309 | #endif | |
1310 | ||
ef917393 | 1311 | return Qunspecified; |
2d764c78 | 1312 | } |
82641697 GM |
1313 | |
1314 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or | |
1315 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1316 | ||
1317 | static int | |
1318 | face_color_gray_p (f, color_name) | |
1319 | struct frame *f; | |
1320 | char *color_name; | |
1321 | { | |
1322 | XColor color; | |
1323 | int gray_p; | |
1324 | ||
1325 | if (defined_color (f, color_name, &color, 0)) | |
1326 | gray_p = ((abs (color.red - color.green) | |
1327 | < max (color.red, color.green) / 20) | |
1328 | && (abs (color.green - color.blue) | |
1329 | < max (color.green, color.blue) / 20) | |
1330 | && (abs (color.blue - color.red) | |
1331 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1332 | else |
82641697 GM |
1333 | gray_p = 0; |
1334 | ||
1335 | return gray_p; | |
87485d6f | 1336 | } |
87485d6f | 1337 | |
cb637678 | 1338 | |
82641697 GM |
1339 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1340 | BACKGROUND_P non-zero means the color will be used as background | |
1341 | color. */ | |
1342 | ||
1343 | static int | |
1344 | face_color_supported_p (f, color_name, background_p) | |
1345 | struct frame *f; | |
1346 | char *color_name; | |
1347 | int background_p; | |
1348 | { | |
1349 | Lisp_Object frame; | |
2d764c78 | 1350 | XColor not_used; |
82641697 GM |
1351 | |
1352 | XSETFRAME (frame, f); | |
8affcced KH |
1353 | return (FRAME_WINDOW_P (f) |
1354 | ? (!NILP (Fxw_display_color_p (frame)) | |
1355 | || xstricmp (color_name, "black") == 0 | |
1356 | || xstricmp (color_name, "white") == 0 | |
1357 | || (background_p | |
1358 | && face_color_gray_p (f, color_name)) | |
1359 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1360 | && face_color_gray_p (f, color_name))) | |
1361 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1362 | } |
82641697 GM |
1363 | |
1364 | ||
da47150d | 1365 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
82641697 GM |
1366 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ |
1367 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1368 | If FRAME is nil or omitted, use the selected frame.") | |
1369 | (color, frame) | |
1370 | Lisp_Object color, frame; | |
cb637678 | 1371 | { |
2d764c78 EZ |
1372 | struct frame *f; |
1373 | ||
1374 | CHECK_FRAME (frame, 0); | |
82641697 | 1375 | CHECK_STRING (color, 0); |
2d764c78 | 1376 | f = XFRAME (frame); |
82641697 GM |
1377 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1378 | } | |
660ed669 | 1379 | |
fffc2367 | 1380 | |
da47150d EZ |
1381 | DEFUN ("color-supported-p", Fcolor_supported_p, |
1382 | Scolor_supported_p, 2, 3, 0, | |
82641697 GM |
1383 | "Return non-nil if COLOR can be displayed on FRAME.\n\ |
1384 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1385 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1386 | COLOR must be a valid color name.") | |
da47150d | 1387 | (color, frame, background_p) |
82641697 GM |
1388 | Lisp_Object frame, color, background_p; |
1389 | { | |
2d764c78 EZ |
1390 | struct frame *f; |
1391 | ||
1392 | CHECK_FRAME (frame, 0); | |
82641697 | 1393 | CHECK_STRING (color, 0); |
2d764c78 | 1394 | f = XFRAME (frame); |
82641697 GM |
1395 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1396 | return Qt; | |
1397 | return Qnil; | |
1398 | } | |
7b37f67b | 1399 | |
82641697 GM |
1400 | /* Load color with name NAME for use by face FACE on frame F. |
1401 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1402 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1403 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1404 | pixel color. If color cannot be loaded, display a message, and | |
1405 | return the foreground, background or underline color of F, but | |
1406 | record that fact in flags of the face so that we don't try to free | |
1407 | these colors. */ | |
1408 | ||
44747bd0 | 1409 | unsigned long |
82641697 GM |
1410 | load_color (f, face, name, target_index) |
1411 | struct frame *f; | |
1412 | struct face *face; | |
1413 | Lisp_Object name; | |
1414 | enum lface_attribute_index target_index; | |
1415 | { | |
1416 | XColor color; | |
1417 | ||
1418 | xassert (STRINGP (name)); | |
1419 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1420 | || target_index == LFACE_BACKGROUND_INDEX | |
1421 | || target_index == LFACE_UNDERLINE_INDEX | |
1422 | || target_index == LFACE_OVERLINE_INDEX | |
1423 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1424 | || target_index == LFACE_BOX_INDEX); | |
1425 | ||
1426 | /* if the color map is full, defined_color will return a best match | |
1427 | to the values in an existing cell. */ | |
1428 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1429 | { | |
2d764c78 | 1430 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
82641697 GM |
1431 | |
1432 | switch (target_index) | |
1120eb5e | 1433 | { |
82641697 GM |
1434 | case LFACE_FOREGROUND_INDEX: |
1435 | face->foreground_defaulted_p = 1; | |
1436 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1437 | break; | |
1438 | ||
1439 | case LFACE_BACKGROUND_INDEX: | |
1440 | face->background_defaulted_p = 1; | |
1441 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1442 | break; | |
1443 | ||
1444 | case LFACE_UNDERLINE_INDEX: | |
1445 | face->underline_defaulted_p = 1; | |
1446 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1447 | break; | |
1448 | ||
1449 | case LFACE_OVERLINE_INDEX: | |
1450 | face->overline_color_defaulted_p = 1; | |
1451 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1452 | break; |
82641697 GM |
1453 | |
1454 | case LFACE_STRIKE_THROUGH_INDEX: | |
1455 | face->strike_through_color_defaulted_p = 1; | |
1456 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1457 | break; | |
1458 | ||
1459 | case LFACE_BOX_INDEX: | |
1460 | face->box_color_defaulted_p = 1; | |
1461 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1462 | break; | |
1463 | ||
1464 | default: | |
1465 | abort (); | |
1120eb5e | 1466 | } |
82641697 GM |
1467 | } |
1468 | #if GLYPH_DEBUG | |
1469 | else | |
1470 | ++ncolors_allocated; | |
1471 | #endif | |
1472 | ||
1473 | return color.pixel; | |
1474 | } | |
1120eb5e | 1475 | |
c3cee013 | 1476 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1477 | |
82641697 GM |
1478 | /* Load colors for face FACE which is used on frame F. Colors are |
1479 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1480 | of ATTRS. If the background color specified is not supported on F, | |
1481 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1482 | ||
1483 | static void | |
1484 | load_face_colors (f, face, attrs) | |
1485 | struct frame *f; | |
1486 | struct face *face; | |
1487 | Lisp_Object *attrs; | |
1488 | { | |
1489 | Lisp_Object fg, bg; | |
1490 | ||
1491 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1492 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1493 | ||
1494 | /* Swap colors if face is inverse-video. */ | |
1495 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1496 | { | |
1497 | Lisp_Object tmp; | |
1498 | tmp = fg; | |
1499 | fg = bg; | |
1500 | bg = tmp; | |
1501 | } | |
1502 | ||
1503 | /* Check for support for foreground, not for background because | |
1504 | face_color_supported_p is smart enough to know that grays are | |
1505 | "supported" as background because we are supposed to use stipple | |
1506 | for them. */ | |
1507 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1508 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1509 | { |
1510 | x_destroy_bitmap (f, face->stipple); | |
1511 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1512 | &face->pixmap_w, &face->pixmap_h); | |
1513 | } | |
82641697 | 1514 | |
be8a72f4 | 1515 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1516 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1517 | } |
1518 | ||
660ed669 | 1519 | |
82641697 | 1520 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1521 | |
cb637678 | 1522 | void |
82641697 | 1523 | unload_color (f, pixel) |
cb637678 | 1524 | struct frame *f; |
82641697 | 1525 | unsigned long pixel; |
cb637678 | 1526 | { |
c3cee013 | 1527 | #ifdef HAVE_X_WINDOWS |
660ed669 | 1528 | BLOCK_INPUT; |
1f847cf8 | 1529 | x_free_colors (f, &pixel, 1); |
82641697 | 1530 | UNBLOCK_INPUT; |
c3cee013 | 1531 | #endif |
82641697 GM |
1532 | } |
1533 | ||
1534 | ||
1535 | /* Free colors allocated for FACE. */ | |
1536 | ||
1537 | static void | |
1538 | free_face_colors (f, face) | |
1539 | struct frame *f; | |
1540 | struct face *face; | |
1541 | { | |
c3cee013 | 1542 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
1543 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; |
1544 | ||
1545 | /* If display has an immutable color map, freeing colors is not | |
1546 | necessary and some servers don't allow it. So don't do it. */ | |
1547 | if (class != StaticColor | |
1548 | && class != StaticGray | |
1549 | && class != TrueColor) | |
1550 | { | |
82641697 | 1551 | BLOCK_INPUT; |
82641697 | 1552 | |
1f847cf8 | 1553 | if (!face->foreground_defaulted_p) |
82641697 | 1554 | { |
1f847cf8 | 1555 | x_free_colors (f, &face->foreground, 1); |
82641697 GM |
1556 | IF_DEBUG (--ncolors_allocated); |
1557 | } | |
1558 | ||
1f847cf8 | 1559 | if (!face->background_defaulted_p) |
82641697 | 1560 | { |
1f847cf8 | 1561 | x_free_colors (f, &face->background, 1); |
82641697 GM |
1562 | IF_DEBUG (--ncolors_allocated); |
1563 | } | |
1564 | ||
1565 | if (face->underline_p | |
1f847cf8 | 1566 | && !face->underline_defaulted_p) |
82641697 | 1567 | { |
1f847cf8 | 1568 | x_free_colors (f, &face->underline_color, 1); |
82641697 GM |
1569 | IF_DEBUG (--ncolors_allocated); |
1570 | } | |
1571 | ||
1572 | if (face->overline_p | |
1f847cf8 | 1573 | && !face->overline_color_defaulted_p) |
82641697 | 1574 | { |
1f847cf8 | 1575 | x_free_colors (f, &face->overline_color, 1); |
82641697 GM |
1576 | IF_DEBUG (--ncolors_allocated); |
1577 | } | |
1578 | ||
1579 | if (face->strike_through_p | |
1f847cf8 | 1580 | && !face->strike_through_color_defaulted_p) |
82641697 | 1581 | { |
1f847cf8 | 1582 | x_free_colors (f, &face->strike_through_color, 1); |
82641697 GM |
1583 | IF_DEBUG (--ncolors_allocated); |
1584 | } | |
1585 | ||
1586 | if (face->box != FACE_NO_BOX | |
1f847cf8 | 1587 | && !face->box_color_defaulted_p) |
82641697 | 1588 | { |
1f847cf8 | 1589 | x_free_colors (f, &face->box_color, 1); |
82641697 GM |
1590 | IF_DEBUG (--ncolors_allocated); |
1591 | } | |
1592 | ||
1593 | UNBLOCK_INPUT; | |
1594 | } | |
2d764c78 | 1595 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 JR |
1596 | } |
1597 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
1598 | |
1599 | ||
1600 | \f | |
1601 | /*********************************************************************** | |
1602 | XLFD Font Names | |
1603 | ***********************************************************************/ | |
1604 | ||
1605 | /* An enumerator for each field of an XLFD font name. */ | |
1606 | ||
1607 | enum xlfd_field | |
1608 | { | |
1609 | XLFD_FOUNDRY, | |
1610 | XLFD_FAMILY, | |
1611 | XLFD_WEIGHT, | |
1612 | XLFD_SLANT, | |
1613 | XLFD_SWIDTH, | |
1614 | XLFD_ADSTYLE, | |
1615 | XLFD_PIXEL_SIZE, | |
1616 | XLFD_POINT_SIZE, | |
1617 | XLFD_RESX, | |
1618 | XLFD_RESY, | |
1619 | XLFD_SPACING, | |
1620 | XLFD_AVGWIDTH, | |
1621 | XLFD_REGISTRY, | |
1622 | XLFD_ENCODING, | |
1623 | XLFD_LAST | |
1624 | }; | |
1625 | ||
1626 | /* An enumerator for each possible slant value of a font. Taken from | |
1627 | the XLFD specification. */ | |
1628 | ||
1629 | enum xlfd_slant | |
1630 | { | |
1631 | XLFD_SLANT_UNKNOWN, | |
1632 | XLFD_SLANT_ROMAN, | |
1633 | XLFD_SLANT_ITALIC, | |
1634 | XLFD_SLANT_OBLIQUE, | |
1635 | XLFD_SLANT_REVERSE_ITALIC, | |
1636 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1637 | XLFD_SLANT_OTHER | |
1638 | }; | |
1639 | ||
1640 | /* Relative font weight according to XLFD documentation. */ | |
1641 | ||
1642 | enum xlfd_weight | |
1643 | { | |
1644 | XLFD_WEIGHT_UNKNOWN, | |
1645 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1646 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1647 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1648 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1649 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1650 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1651 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1652 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1653 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1654 | }; | |
1655 | ||
1656 | /* Relative proportionate width. */ | |
1657 | ||
1658 | enum xlfd_swidth | |
1659 | { | |
1660 | XLFD_SWIDTH_UNKNOWN, | |
1661 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1662 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1663 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1664 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1665 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1666 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1667 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1668 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1669 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1670 | }; | |
1671 | ||
1672 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1673 | names to numeric and symbolic values. */ | |
1674 | ||
1675 | struct table_entry | |
1676 | { | |
1677 | char *name; | |
1678 | int numeric; | |
1679 | Lisp_Object *symbol; | |
1680 | }; | |
1681 | ||
1682 | /* Table of XLFD slant names and their numeric and symbolic | |
1683 | representations. This table must be sorted by slant names in | |
1684 | ascending order. */ | |
1685 | ||
1686 | static struct table_entry slant_table[] = | |
1687 | { | |
1688 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1689 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1690 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1691 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1692 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1693 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1694 | }; | |
1695 | ||
1696 | /* Table of XLFD weight names. This table must be sorted by weight | |
1697 | names in ascending order. */ | |
1698 | ||
1699 | static struct table_entry weight_table[] = | |
1700 | { | |
1701 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1702 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1703 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1704 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1705 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1706 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1707 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1708 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1709 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1710 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1711 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1712 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1713 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1714 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1715 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1716 | }; | |
1717 | ||
1718 | /* Table of XLFD width names. This table must be sorted by width | |
1719 | names in ascending order. */ | |
1720 | ||
1721 | static struct table_entry swidth_table[] = | |
1722 | { | |
1723 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1724 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1725 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1726 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1727 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1728 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1729 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1730 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1731 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1732 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1733 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1734 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1735 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1736 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1737 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1738 | }; | |
1739 | ||
1740 | /* Structure used to hold the result of splitting font names in XLFD | |
1741 | format into their fields. */ | |
1742 | ||
1743 | struct font_name | |
1744 | { | |
1745 | /* The original name which is modified destructively by | |
1746 | split_font_name. The pointer is kept here to be able to free it | |
1747 | if it was allocated from the heap. */ | |
1748 | char *name; | |
1749 | ||
1750 | /* Font name fields. Each vector element points into `name' above. | |
1751 | Fields are NUL-terminated. */ | |
1752 | char *fields[XLFD_LAST]; | |
1753 | ||
1754 | /* Numeric values for those fields that interest us. See | |
1755 | split_font_name for which these are. */ | |
1756 | int numeric[XLFD_LAST]; | |
1757 | }; | |
1758 | ||
1759 | /* The frame in effect when sorting font names. Set temporarily in | |
1760 | sort_fonts so that it is available in font comparison functions. */ | |
1761 | ||
1762 | static struct frame *font_frame; | |
1763 | ||
1764 | /* Order by which font selection chooses fonts. The default values | |
1765 | mean `first, find a best match for the font width, then for the | |
1766 | font height, then for weight, then for slant.' This variable can be | |
1767 | set via set-face-font-sort-order. */ | |
1768 | ||
1769 | static int font_sort_order[4]; | |
1770 | ||
1771 | ||
1772 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1773 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1774 | is a pointer to the matching table entry or null if no table entry | |
1775 | matches. */ | |
1776 | ||
1777 | static struct table_entry * | |
1778 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1779 | struct table_entry *table; | |
1780 | int dim; | |
1781 | struct font_name *font; | |
1782 | int field_index; | |
1783 | { | |
1784 | /* Function split_font_name converts fields to lower-case, so there | |
1785 | is no need to use xstrlwr or xstricmp here. */ | |
1786 | char *s = font->fields[field_index]; | |
1787 | int low, mid, high, cmp; | |
1788 | ||
1789 | low = 0; | |
1790 | high = dim - 1; | |
1791 | ||
1792 | while (low <= high) | |
1793 | { | |
1794 | mid = (low + high) / 2; | |
1795 | cmp = strcmp (table[mid].name, s); | |
1796 | ||
1797 | if (cmp < 0) | |
1798 | low = mid + 1; | |
1799 | else if (cmp > 0) | |
1800 | high = mid - 1; | |
1801 | else | |
1802 | return table + mid; | |
1803 | } | |
1804 | ||
1805 | return NULL; | |
1806 | } | |
1807 | ||
1808 | ||
1809 | /* Return a numeric representation for font name field | |
1810 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1811 | has DIM entries. Value is the numeric value found or DFLT if no | |
1812 | table entry matches. This function is used to translate weight, | |
1813 | slant, and swidth names of XLFD font names to numeric values. */ | |
1814 | ||
1815 | static INLINE int | |
1816 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1817 | struct table_entry *table; | |
1818 | int dim; | |
1819 | struct font_name *font; | |
1820 | int field_index; | |
1821 | int dflt; | |
1822 | { | |
1823 | struct table_entry *p; | |
1824 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1825 | return p ? p->numeric : dflt; | |
1826 | } | |
1827 | ||
1828 | ||
1829 | /* Return a symbolic representation for font name field | |
1830 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1831 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1832 | table entry matches. This function is used to translate weight, | |
1833 | slant, and swidth names of XLFD font names to symbols. */ | |
1834 | ||
1835 | static INLINE Lisp_Object | |
1836 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1837 | struct table_entry *table; | |
1838 | int dim; | |
1839 | struct font_name *font; | |
1840 | int field_index; | |
1841 | int dflt; | |
1842 | { | |
1843 | struct table_entry *p; | |
1844 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1845 | return p ? *p->symbol : dflt; | |
1846 | } | |
1847 | ||
1848 | ||
1849 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1850 | ||
1851 | static INLINE int | |
1852 | xlfd_numeric_slant (font) | |
1853 | struct font_name *font; | |
1854 | { | |
1855 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1856 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1857 | } | |
1858 | ||
1859 | ||
1860 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1861 | ||
1862 | static INLINE Lisp_Object | |
1863 | xlfd_symbolic_slant (font) | |
1864 | struct font_name *font; | |
1865 | { | |
1866 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1867 | font, XLFD_SLANT, Qnormal); | |
1868 | } | |
1869 | ||
1870 | ||
1871 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1872 | ||
1873 | static INLINE int | |
1874 | xlfd_numeric_weight (font) | |
1875 | struct font_name *font; | |
1876 | { | |
1877 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1878 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1879 | } | |
1880 | ||
1881 | ||
1882 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1883 | ||
1884 | static INLINE Lisp_Object | |
1885 | xlfd_symbolic_weight (font) | |
1886 | struct font_name *font; | |
1887 | { | |
1888 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1889 | font, XLFD_WEIGHT, Qnormal); | |
1890 | } | |
1891 | ||
1892 | ||
1893 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1894 | name fields are found in FONT. */ | |
1895 | ||
1896 | static INLINE int | |
1897 | xlfd_numeric_swidth (font) | |
1898 | struct font_name *font; | |
1899 | { | |
1900 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1901 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1902 | } | |
1903 | ||
1904 | ||
1905 | /* Return a symbolic value for the swidth of FONT. */ | |
1906 | ||
1907 | static INLINE Lisp_Object | |
1908 | xlfd_symbolic_swidth (font) | |
1909 | struct font_name *font; | |
1910 | { | |
1911 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1912 | font, XLFD_SWIDTH, Qnormal); | |
1913 | } | |
1914 | ||
1915 | ||
1916 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1917 | entries. Value is a pointer to the matching table entry or null if | |
1918 | no element of TABLE contains SYMBOL. */ | |
1919 | ||
1920 | static struct table_entry * | |
1921 | face_value (table, dim, symbol) | |
1922 | struct table_entry *table; | |
1923 | int dim; | |
1924 | Lisp_Object symbol; | |
1925 | { | |
1926 | int i; | |
1927 | ||
1928 | xassert (SYMBOLP (symbol)); | |
1929 | ||
1930 | for (i = 0; i < dim; ++i) | |
1931 | if (EQ (*table[i].symbol, symbol)) | |
1932 | break; | |
1933 | ||
1934 | return i < dim ? table + i : NULL; | |
1935 | } | |
1936 | ||
1937 | ||
1938 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1939 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1940 | ||
1941 | static INLINE int | |
1942 | face_numeric_value (table, dim, symbol) | |
1943 | struct table_entry *table; | |
1944 | int dim; | |
1945 | Lisp_Object symbol; | |
1946 | { | |
1947 | struct table_entry *p = face_value (table, dim, symbol); | |
1948 | return p ? p->numeric : -1; | |
1949 | } | |
1950 | ||
1951 | ||
1952 | /* Return a numeric value representing the weight specified by Lisp | |
1953 | symbol WEIGHT. Value is one of the enumerators of enum | |
1954 | xlfd_weight. */ | |
1955 | ||
1956 | static INLINE int | |
1957 | face_numeric_weight (weight) | |
1958 | Lisp_Object weight; | |
1959 | { | |
1960 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
1961 | } | |
1962 | ||
1963 | ||
1964 | /* Return a numeric value representing the slant specified by Lisp | |
1965 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
1966 | ||
1967 | static INLINE int | |
1968 | face_numeric_slant (slant) | |
1969 | Lisp_Object slant; | |
1970 | { | |
1971 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
1972 | } | |
1973 | ||
1974 | ||
1975 | /* Return a numeric value representing the swidth specified by Lisp | |
1976 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
1977 | ||
1978 | static int | |
1979 | face_numeric_swidth (width) | |
1980 | Lisp_Object width; | |
1981 | { | |
1982 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
1983 | } | |
1984 | ||
1985 | ||
c3cee013 | 1986 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
1987 | |
1988 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
1989 | ||
1990 | static INLINE int | |
1991 | xlfd_fixed_p (font) | |
1992 | struct font_name *font; | |
1993 | { | |
1994 | /* Function split_font_name converts fields to lower-case, so there | |
1995 | is no need to use tolower here. */ | |
1996 | return *font->fields[XLFD_SPACING] != 'p'; | |
1997 | } | |
1998 | ||
1999 | ||
2000 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2001 | ||
2002 | The actual height of the font when displayed on F depends on the | |
2003 | resolution of both the font and frame. For example, a 10pt font | |
2004 | designed for a 100dpi display will display larger than 10pt on a | |
2005 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2006 | display one is using. For example, some intlfonts are available in | |
2007 | 72dpi versions, only.) | |
2008 | ||
2009 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2010 | be determined. */ | |
2011 | ||
2012 | static INLINE int | |
2013 | xlfd_point_size (f, font) | |
2014 | struct frame *f; | |
2015 | struct font_name *font; | |
2016 | { | |
2017 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2018 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
2019 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
2020 | int real_pt; | |
2021 | ||
2022 | if (font_resy == 0 || font_pt == 0) | |
2023 | real_pt = 0; | |
2024 | else | |
2025 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
2026 | ||
2027 | return real_pt; | |
2028 | } | |
2029 | ||
2030 | ||
39506348 KH |
2031 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2032 | of frame F. This function is used to guess a point size of font | |
2033 | when only the pixel height of the font is available. */ | |
2034 | ||
2035 | static INLINE int | |
2036 | pixel_point_size (f, pixel) | |
2037 | struct frame *f; | |
2038 | int pixel; | |
2039 | { | |
2040 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2041 | double real_pt; | |
2042 | int int_pt; | |
2043 | ||
2044 | /* As one inch is 72 points, 72/RESY gives the point size of one dot. */ | |
2045 | real_pt = pixel * 72 / resy; | |
2046 | int_pt = real_pt + 0.5; | |
2047 | ||
2048 | return int_pt; | |
2049 | } | |
2050 | ||
2051 | ||
82641697 GM |
2052 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2053 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2054 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2055 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2056 | zero if the font name doesn't have the format we expect. The | |
2057 | expected format is a font name that starts with a `-' and has | |
2058 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
2059 | forms of font names where certain field contents are enclosed in | |
2060 | square brackets. We don't support that, for now. */ | |
2061 | ||
2062 | static int | |
2063 | split_font_name (f, font, numeric_p) | |
2064 | struct frame *f; | |
2065 | struct font_name *font; | |
2066 | int numeric_p; | |
2067 | { | |
2068 | int i = 0; | |
2069 | int success_p; | |
2070 | ||
2071 | if (*font->name == '-') | |
2072 | { | |
2073 | char *p = xstrlwr (font->name) + 1; | |
2074 | ||
2075 | while (i < XLFD_LAST) | |
2076 | { | |
2077 | font->fields[i] = p; | |
2078 | ++i; | |
2079 | ||
2080 | while (*p && *p != '-') | |
2081 | ++p; | |
2082 | ||
2083 | if (*p != '-') | |
2084 | break; | |
2085 | ||
2086 | *p++ = 0; | |
2087 | } | |
2088 | } | |
2089 | ||
2090 | success_p = i == XLFD_LAST; | |
2091 | ||
2092 | /* If requested, and font name was in the expected format, | |
2093 | compute numeric values for some fields. */ | |
2094 | if (numeric_p && success_p) | |
2095 | { | |
2096 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2097 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2098 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2099 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2100 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
2101 | } | |
2102 | ||
2103 | return success_p; | |
2104 | } | |
2105 | ||
2106 | ||
2107 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2108 | pointer to the font name, which is allocated via xmalloc. */ | |
2109 | ||
2110 | static char * | |
2111 | build_font_name (font) | |
2112 | struct font_name *font; | |
2113 | { | |
2114 | int i; | |
2115 | int size = 100; | |
2116 | char *font_name = (char *) xmalloc (size); | |
2117 | int total_length = 0; | |
2118 | ||
2119 | for (i = 0; i < XLFD_LAST; ++i) | |
2120 | { | |
2121 | /* Add 1 because of the leading `-'. */ | |
2122 | int len = strlen (font->fields[i]) + 1; | |
2123 | ||
2124 | /* Reallocate font_name if necessary. Add 1 for the final | |
2125 | NUL-byte. */ | |
2126 | if (total_length + len + 1 >= size) | |
2127 | { | |
2128 | int new_size = max (2 * size, size + len + 1); | |
2129 | int sz = new_size * sizeof *font_name; | |
2130 | font_name = (char *) xrealloc (font_name, sz); | |
2131 | size = new_size; | |
2132 | } | |
2133 | ||
2134 | font_name[total_length] = '-'; | |
2135 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2136 | total_length += len; | |
2137 | } | |
2138 | ||
2139 | font_name[total_length] = 0; | |
2140 | return font_name; | |
2141 | } | |
2142 | ||
2143 | ||
2144 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2145 | itself and all `name' fields in its elements. */ | |
2146 | ||
2147 | static INLINE void | |
2148 | free_font_names (fonts, n) | |
2149 | struct font_name *fonts; | |
2150 | int n; | |
2151 | { | |
2152 | while (n) | |
2153 | xfree (fonts[--n].name); | |
2154 | xfree (fonts); | |
2155 | } | |
2156 | ||
2157 | ||
2158 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2159 | elements using qsort and comparison function CMPFN. F is the frame | |
2160 | on which the fonts will be used. The global variable font_frame | |
2161 | is temporarily set to F to make it available in CMPFN. */ | |
2162 | ||
2163 | static INLINE void | |
2164 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2165 | struct frame *f; | |
2166 | struct font_name *fonts; | |
2167 | int nfonts; | |
2168 | int (*cmpfn) P_ ((const void *, const void *)); | |
2169 | { | |
2170 | font_frame = f; | |
2171 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2172 | font_frame = NULL; | |
2173 | } | |
2174 | ||
2175 | ||
2176 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2177 | display in x_display_list. FONTS is a pointer to a vector of | |
2178 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2179 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2180 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2181 | scalable fonts. | |
2182 | ||
2183 | For all fonts found, set FONTS[i].name to the name of the font, | |
2184 | allocated via xmalloc, and split font names into fields. Ignore | |
2185 | fonts that we can't parse. Value is the number of fonts found. | |
2186 | ||
2187 | This is similar to x_list_fonts. The differences are: | |
2188 | ||
2189 | 1. It avoids consing. | |
2190 | 2. It never calls XLoadQueryFont. */ | |
2191 | ||
2192 | static int | |
2193 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2194 | scalable_fonts_p) | |
2195 | struct frame *f; | |
2196 | char *pattern; | |
2197 | struct font_name *fonts; | |
2198 | int nfonts, try_alternatives_p; | |
2199 | int scalable_fonts_p; | |
2200 | { | |
82641697 GM |
2201 | int n, i, j; |
2202 | char **names; | |
c3cee013 JR |
2203 | #ifdef HAVE_X_WINDOWS |
2204 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
82641697 GM |
2205 | |
2206 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2207 | BLOCK_INPUT; | |
2208 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2209 | UNBLOCK_INPUT; | |
c3cee013 JR |
2210 | #endif |
2211 | #ifdef WINDOWSNT | |
2212 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be | |
2213 | better to do it the other way around. */ | |
2214 | Lisp_Object lfonts; | |
2215 | Lisp_Object lpattern, tem; | |
2216 | ||
2217 | n = 0; | |
2218 | names = NULL; | |
2219 | ||
2220 | lpattern = build_string (pattern); | |
2221 | ||
2222 | /* Get the list of fonts matching PATTERN. */ | |
2223 | BLOCK_INPUT; | |
2224 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); | |
2225 | UNBLOCK_INPUT; | |
2226 | ||
2227 | /* Count fonts returned */ | |
2228 | for (tem = lfonts; CONSP (tem); tem = XCDR (tem)) | |
2229 | n++; | |
2230 | ||
2231 | /* Allocate array. */ | |
2232 | if (n) | |
2233 | names = (char **) xmalloc (n * sizeof (char *)); | |
2234 | ||
2235 | /* Extract font names into char * array. */ | |
2236 | tem = lfonts; | |
2237 | for (i = 0; i < n; i++) | |
2238 | { | |
2239 | names[i] = XSTRING (XCAR (tem))->data; | |
2240 | tem = XCDR (tem); | |
2241 | } | |
2242 | #endif | |
82641697 GM |
2243 | |
2244 | if (names) | |
2245 | { | |
2246 | /* Make a copy of the font names we got from X, and | |
2247 | split them into fields. */ | |
2248 | for (i = j = 0; i < n; ++i) | |
2249 | { | |
2250 | /* Make a copy of the font name. */ | |
2251 | fonts[j].name = xstrdup (names[i]); | |
2252 | ||
2253 | /* Ignore fonts having a name that we can't parse. */ | |
2254 | if (!split_font_name (f, fonts + j, 1)) | |
2255 | xfree (fonts[j].name); | |
2256 | else if (font_scalable_p (fonts + j)) | |
2257 | { | |
2258 | #if SCALABLE_FONTS | |
2259 | if (!scalable_fonts_p | |
2260 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2261 | xfree (fonts[j].name); | |
2262 | else | |
2263 | ++j; | |
2264 | #else /* !SCALABLE_FONTS */ | |
2265 | /* Always ignore scalable fonts. */ | |
2266 | xfree (fonts[j].name); | |
2267 | #endif /* !SCALABLE_FONTS */ | |
2268 | } | |
2269 | else | |
2270 | ++j; | |
2271 | } | |
2272 | ||
2273 | n = j; | |
2274 | ||
c3cee013 | 2275 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
2276 | /* Free font names. */ |
2277 | BLOCK_INPUT; | |
2278 | XFreeFontNames (names); | |
2279 | UNBLOCK_INPUT; | |
c3cee013 | 2280 | #endif |
82641697 GM |
2281 | } |
2282 | ||
2283 | ||
2284 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2285 | if (n == 0 && try_alternatives_p) | |
2286 | { | |
2287 | Lisp_Object list = Valternate_fontname_alist; | |
2288 | ||
2289 | while (CONSP (list)) | |
2290 | { | |
2291 | Lisp_Object entry = XCAR (list); | |
2292 | if (CONSP (entry) | |
2293 | && STRINGP (XCAR (entry)) | |
2294 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2295 | break; | |
2296 | list = XCDR (list); | |
2297 | } | |
2298 | ||
2299 | if (CONSP (list)) | |
2300 | { | |
2301 | Lisp_Object patterns = XCAR (list); | |
2302 | Lisp_Object name; | |
2303 | ||
2304 | while (CONSP (patterns) | |
2305 | /* If list is screwed up, give up. */ | |
2306 | && (name = XCAR (patterns), | |
2307 | STRINGP (name)) | |
2308 | /* Ignore patterns equal to PATTERN because we tried that | |
2309 | already with no success. */ | |
2310 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2311 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2312 | fonts, nfonts, 0, | |
2313 | scalable_fonts_p), | |
2314 | n == 0))) | |
2315 | patterns = XCDR (patterns); | |
2316 | } | |
2317 | } | |
2318 | ||
2319 | return n; | |
2320 | } | |
2321 | ||
2322 | ||
2323 | /* Determine the first font matching PATTERN on frame F. Return in | |
2324 | *FONT the matching font name, split into fields. Value is non-zero | |
2325 | if a match was found. */ | |
2326 | ||
2327 | static int | |
2328 | first_font_matching (f, pattern, font) | |
2329 | struct frame *f; | |
2330 | char *pattern; | |
2331 | struct font_name *font; | |
2332 | { | |
2333 | int nfonts = 100; | |
2334 | struct font_name *fonts; | |
2335 | ||
2336 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2337 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2338 | ||
2339 | if (nfonts > 0) | |
2340 | { | |
2341 | bcopy (&fonts[0], font, sizeof *font); | |
2342 | ||
2343 | fonts[0].name = NULL; | |
2344 | free_font_names (fonts, nfonts); | |
2345 | } | |
2346 | ||
2347 | return nfonts > 0; | |
2348 | } | |
2349 | ||
2350 | ||
2351 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2352 | using comparison function CMPFN. Value is the number of fonts | |
2353 | found. If value is non-zero, *FONTS is set to a vector of | |
2354 | font_name structures allocated from the heap containing matching | |
2355 | fonts. Each element of *FONTS contains a name member that is also | |
2356 | allocated from the heap. Font names in these structures are split | |
2357 | into fields. Use free_font_names to free such an array. */ | |
2358 | ||
2359 | static int | |
2360 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2361 | struct frame *f; | |
2362 | char *pattern; | |
2363 | int (*cmpfn) P_ ((const void *, const void *)); | |
2364 | struct font_name **fonts; | |
2365 | { | |
2366 | int nfonts; | |
2367 | ||
2368 | /* Get the list of fonts matching pattern. 100 should suffice. */ | |
057df17c GM |
2369 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2370 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2371 | nfonts = XFASTINT (Vfont_list_limit); | |
2372 | ||
82641697 GM |
2373 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
2374 | #if SCALABLE_FONTS | |
2375 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); | |
2376 | #else | |
2377 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); | |
2378 | #endif | |
2379 | ||
2380 | /* Sort the resulting array and return it in *FONTS. If no | |
2381 | fonts were found, make sure to set *FONTS to null. */ | |
2382 | if (nfonts) | |
2383 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2384 | else | |
2385 | { | |
2386 | xfree (*fonts); | |
2387 | *fonts = NULL; | |
2388 | } | |
2389 | ||
2390 | return nfonts; | |
2391 | } | |
2392 | ||
2393 | ||
2394 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2395 | strcmp. Sort order is given by the global variable | |
2396 | font_sort_order. Font names are sorted so that, everything else | |
2397 | being equal, fonts with a resolution closer to that of the frame on | |
2398 | which they are used are listed first. The global variable | |
2399 | font_frame is the frame on which we operate. */ | |
2400 | ||
2401 | static int | |
2402 | cmp_font_names (a, b) | |
2403 | const void *a, *b; | |
2404 | { | |
2405 | struct font_name *x = (struct font_name *) a; | |
2406 | struct font_name *y = (struct font_name *) b; | |
2407 | int cmp; | |
2408 | ||
2409 | /* All strings have been converted to lower-case by split_font_name, | |
2410 | so we can use strcmp here. */ | |
2411 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2412 | if (cmp == 0) | |
2413 | { | |
2414 | int i; | |
2415 | ||
2416 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) | |
2417 | { | |
2418 | int j = font_sort_order[i]; | |
2419 | cmp = x->numeric[j] - y->numeric[j]; | |
2420 | } | |
2421 | ||
2422 | if (cmp == 0) | |
2423 | { | |
2424 | /* Everything else being equal, we prefer fonts with an | |
2425 | y-resolution closer to that of the frame. */ | |
2426 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2427 | int x_resy = x->numeric[XLFD_RESY]; | |
2428 | int y_resy = y->numeric[XLFD_RESY]; | |
2429 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2430 | } | |
2431 | } | |
2432 | ||
2433 | return cmp; | |
2434 | } | |
2435 | ||
2436 | ||
2437 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2438 | is non-nil list fonts matching that pattern. Otherwise, if |
2439 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2440 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2441 | structures allocated from the heap containing the fonts found. | |
2442 | Value is the number of fonts found. */ | |
82641697 GM |
2443 | |
2444 | static int | |
39506348 | 2445 | font_list (f, pattern, family, registry, fonts) |
82641697 | 2446 | struct frame *f; |
39506348 | 2447 | Lisp_Object pattern, family, registry; |
82641697 GM |
2448 | struct font_name **fonts; |
2449 | { | |
39506348 KH |
2450 | char *pattern_str, *family_str, *registry_str; |
2451 | ||
2452 | if (NILP (pattern)) | |
82641697 | 2453 | { |
39506348 KH |
2454 | family_str = (NILP (family) ? "*" : (char *) XSTRING (family)->data); |
2455 | registry_str = (NILP (registry) ? "*" : (char *) XSTRING (registry)->data); | |
82641697 | 2456 | |
39506348 KH |
2457 | pattern_str = (char *) alloca (strlen (family_str) |
2458 | + strlen (registry_str) | |
82641697 | 2459 | + 10); |
39506348 KH |
2460 | if (index (family_str, '-')) |
2461 | sprintf (pattern_str, "-%s-*-%s", family_str, registry_str); | |
82641697 | 2462 | else |
39506348 | 2463 | sprintf (pattern_str, "-*-%s-*-%s", family_str, registry_str); |
82641697 | 2464 | } |
39506348 KH |
2465 | else |
2466 | pattern_str = (char *) XSTRING (pattern)->data; | |
82641697 | 2467 | |
39506348 | 2468 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2469 | } |
2470 | ||
2471 | ||
2472 | /* Remove elements from LIST whose cars are `equal'. Called from | |
92610620 | 2473 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2474 | entries. */ |
2475 | ||
2476 | static void | |
2477 | remove_duplicates (list) | |
2478 | Lisp_Object list; | |
2479 | { | |
2480 | Lisp_Object tail = list; | |
2481 | ||
2482 | while (!NILP (tail) && !NILP (XCDR (tail))) | |
2483 | { | |
2484 | Lisp_Object next = XCDR (tail); | |
2485 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2486 | XCDR (tail) = XCDR (next); | |
2487 | else | |
2488 | tail = XCDR (tail); | |
2489 | } | |
2490 | } | |
2491 | ||
2492 | ||
92610620 | 2493 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
82641697 GM |
2494 | "Return a list of available fonts of family FAMILY on FRAME.\n\ |
2495 | If FAMILY is omitted or nil, list all families.\n\ | |
2496 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2497 | `?' and `*'.\n\ | |
2498 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2499 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2500 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2501 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2502 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2503 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2504 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2505 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2506 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2507 | The result list is sorted according to the current setting of\n\ |
2508 | the face font sort order.") | |
2509 | (family, frame) | |
2510 | Lisp_Object family, frame; | |
2511 | { | |
2512 | struct frame *f = check_x_frame (frame); | |
2513 | struct font_name *fonts; | |
2514 | int i, nfonts; | |
2515 | Lisp_Object result; | |
2516 | struct gcpro gcpro1; | |
82641697 | 2517 | |
39506348 KH |
2518 | if (!NILP (family)) |
2519 | CHECK_STRING (family, 1); | |
82641697 GM |
2520 | |
2521 | result = Qnil; | |
2522 | GCPRO1 (result); | |
39506348 | 2523 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2524 | for (i = nfonts - 1; i >= 0; --i) |
2525 | { | |
057df17c GM |
2526 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2527 | char *tem; | |
82641697 GM |
2528 | |
2529 | #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL)) | |
2530 | ||
2531 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); | |
2532 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2533 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2534 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2535 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2536 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2537 | tem = build_font_name (fonts + i); |
2538 | ASET (v, 6, build_string (tem)); | |
2539 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2540 | fonts[i].fields[XLFD_ENCODING]); | |
2541 | ASET (v, 7, build_string (tem)); | |
2542 | xfree (tem); | |
2543 | ||
82641697 GM |
2544 | result = Fcons (v, result); |
2545 | ||
2546 | #undef ASET | |
2547 | } | |
2548 | ||
2549 | remove_duplicates (result); | |
2550 | free_font_names (fonts, nfonts); | |
2551 | UNGCPRO; | |
2552 | return result; | |
2553 | } | |
2554 | ||
2555 | ||
2556 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2557 | 0, 1, 0, | |
2558 | "Return a list of available font families on FRAME.\n\ | |
2559 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2560 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2561 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2562 | are fixed-pitch.") | |
2563 | (frame) | |
2564 | Lisp_Object frame; | |
2565 | { | |
2566 | struct frame *f = check_x_frame (frame); | |
2567 | int nfonts, i; | |
2568 | struct font_name *fonts; | |
2569 | Lisp_Object result; | |
2570 | struct gcpro gcpro1; | |
057df17c GM |
2571 | int count = specpdl_ptr - specpdl; |
2572 | int limit; | |
2573 | ||
2574 | /* Let's consider all fonts. Increase the limit for matching | |
2575 | fonts until we have them all. */ | |
2576 | for (limit = 500;;) | |
2577 | { | |
2578 | specbind (intern ("font-list-limit"), make_number (limit)); | |
39506348 | 2579 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); |
057df17c GM |
2580 | |
2581 | if (nfonts == limit) | |
2582 | { | |
2583 | free_font_names (fonts, nfonts); | |
2584 | limit *= 2; | |
2585 | } | |
2586 | else | |
2587 | break; | |
2588 | } | |
82641697 | 2589 | |
82641697 GM |
2590 | result = Qnil; |
2591 | GCPRO1 (result); | |
2592 | for (i = nfonts - 1; i >= 0; --i) | |
2593 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2594 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2595 | result); | |
2596 | ||
2597 | remove_duplicates (result); | |
2598 | free_font_names (fonts, nfonts); | |
2599 | UNGCPRO; | |
057df17c | 2600 | return unbind_to (count, result); |
82641697 GM |
2601 | } |
2602 | ||
2603 | ||
2604 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2605 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2606 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2607 | the same size as FACE on FRAME.\n\ | |
2608 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2609 | the * character matches any substring, and\n\ | |
2610 | the ? character matches any single character.\n\ | |
2611 | PATTERN is case-insensitive.\n\ | |
2612 | FACE is a face name--a symbol.\n\ | |
2613 | \n\ | |
2614 | The return value is a list of strings, suitable as arguments to\n\ | |
2615 | set-face-font.\n\ | |
2616 | \n\ | |
2617 | Fonts Emacs can't use may or may not be excluded\n\ | |
2618 | even if they match PATTERN and FACE.\n\ | |
2619 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2620 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2621 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2622 | occupied by a character of a font. In that case, return only fonts\n\ | |
2623 | the WIDTH times as wide as FACE on FRAME.") | |
2624 | (pattern, face, frame, maximum, width) | |
2625 | Lisp_Object pattern, face, frame, maximum, width; | |
2626 | { | |
2627 | struct frame *f; | |
2628 | int size; | |
2629 | int maxnames; | |
2630 | ||
2631 | check_x (); | |
2632 | CHECK_STRING (pattern, 0); | |
2633 | ||
2634 | if (NILP (maximum)) | |
2635 | maxnames = 2000; | |
2636 | else | |
2637 | { | |
2638 | CHECK_NATNUM (maximum, 0); | |
2639 | maxnames = XINT (maximum); | |
2640 | } | |
2641 | ||
2642 | if (!NILP (width)) | |
2643 | CHECK_NUMBER (width, 4); | |
2644 | ||
2645 | /* We can't simply call check_x_frame because this function may be | |
2646 | called before any frame is created. */ | |
2647 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 2648 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
2649 | { |
2650 | /* Perhaps we have not yet created any frame. */ | |
2651 | f = NULL; | |
2652 | face = Qnil; | |
2653 | } | |
2654 | ||
2655 | /* Determine the width standard for comparison with the fonts we find. */ | |
2656 | ||
2657 | if (NILP (face)) | |
2658 | size = 0; | |
2659 | else | |
2660 | { | |
2661 | /* This is of limited utility since it works with character | |
2662 | widths. Keep it for compatibility. --gerd. */ | |
39506348 | 2663 | int face_id = lookup_named_face (f, face, 0); |
82641697 GM |
2664 | struct face *face = FACE_FROM_ID (f, face_id); |
2665 | ||
2666 | if (face->font) | |
c3cee013 | 2667 | size = FONT_WIDTH (face->font); |
82641697 | 2668 | else |
c3cee013 | 2669 | size = FONT_WIDTH (FRAME_FONT (f)); |
82641697 GM |
2670 | |
2671 | if (!NILP (width)) | |
2672 | size *= XINT (width); | |
2673 | } | |
2674 | ||
2675 | { | |
2676 | Lisp_Object args[2]; | |
2677 | ||
2678 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2679 | if (f == NULL) | |
2680 | /* We don't have to check fontsets. */ | |
2681 | return args[0]; | |
2682 | args[1] = list_fontsets (f, pattern, size); | |
2683 | return Fnconc (2, args); | |
2684 | } | |
2685 | } | |
2686 | ||
c3cee013 | 2687 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2688 | |
2689 | ||
2690 | \f | |
2691 | /*********************************************************************** | |
2692 | Lisp Faces | |
2693 | ***********************************************************************/ | |
2694 | ||
2695 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2696 | ||
2697 | #define LFACE_FAMILY(LFACE) \ | |
2698 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2699 | #define LFACE_HEIGHT(LFACE) \ | |
2700 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2701 | #define LFACE_WEIGHT(LFACE) \ | |
2702 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2703 | #define LFACE_SLANT(LFACE) \ | |
2704 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2705 | #define LFACE_UNDERLINE(LFACE) \ | |
2706 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2707 | #define LFACE_INVERSE(LFACE) \ | |
2708 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2709 | #define LFACE_FOREGROUND(LFACE) \ | |
2710 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2711 | #define LFACE_BACKGROUND(LFACE) \ | |
2712 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2713 | #define LFACE_STIPPLE(LFACE) \ | |
2714 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2715 | #define LFACE_SWIDTH(LFACE) \ | |
2716 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2717 | #define LFACE_OVERLINE(LFACE) \ | |
2718 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2719 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2720 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2721 | #define LFACE_BOX(LFACE) \ | |
2722 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
39506348 KH |
2723 | #define LFACE_FONT(LFACE) \ |
2724 | XVECTOR (LFACE)->contents[LFACE_FONT_INDEX] | |
82641697 GM |
2725 | |
2726 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2727 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2728 | ||
2729 | #define LFACEP(LFACE) \ | |
2730 | (VECTORP (LFACE) \ | |
2731 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2732 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2733 | ||
2734 | ||
2735 | #if GLYPH_DEBUG | |
2736 | ||
2737 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2738 | ||
2739 | static void | |
2740 | check_lface_attrs (attrs) | |
2741 | Lisp_Object *attrs; | |
2742 | { | |
2743 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2744 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2745 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2746 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2747 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2748 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX])); | |
2749 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) | |
2750 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2751 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2752 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2753 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2754 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2755 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2756 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2757 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2758 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2759 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2760 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2761 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2762 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2763 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2764 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2765 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2766 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2767 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2768 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2769 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2770 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2771 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2772 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2773 | #ifdef HAVE_WINDOW_SYSTEM | |
2774 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2775 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 2776 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 2777 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
2778 | || NILP (attrs[LFACE_FONT_INDEX]) |
2779 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
2780 | #endif |
2781 | } | |
2782 | ||
2783 | ||
2784 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2785 | ||
2786 | static void | |
2787 | check_lface (lface) | |
2788 | Lisp_Object lface; | |
2789 | { | |
2790 | if (!NILP (lface)) | |
2791 | { | |
2792 | xassert (LFACEP (lface)); | |
2793 | check_lface_attrs (XVECTOR (lface)->contents); | |
2794 | } | |
2795 | } | |
2796 | ||
2797 | #else /* GLYPH_DEBUG == 0 */ | |
2798 | ||
2799 | #define check_lface_attrs(attrs) (void) 0 | |
2800 | #define check_lface(lface) (void) 0 | |
2801 | ||
2802 | #endif /* GLYPH_DEBUG == 0 */ | |
2803 | ||
2804 | ||
39506348 | 2805 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
c7ae3284 GM |
2806 | to make it a symvol. If FACE_NAME is an alias for another face, |
2807 | return that face's name. */ | |
2808 | ||
2809 | static Lisp_Object | |
2810 | resolve_face_name (face_name) | |
2811 | Lisp_Object face_name; | |
2812 | { | |
2813 | Lisp_Object aliased; | |
2814 | ||
2815 | if (STRINGP (face_name)) | |
2816 | face_name = intern (XSTRING (face_name)->data); | |
2817 | ||
2818 | for (;;) | |
2819 | { | |
2820 | aliased = Fget (face_name, Qface_alias); | |
2821 | if (NILP (aliased)) | |
2822 | break; | |
2823 | else | |
2824 | face_name = aliased; | |
2825 | } | |
2826 | ||
2827 | return face_name; | |
2828 | } | |
2829 | ||
2830 | ||
82641697 GM |
2831 | /* Return the face definition of FACE_NAME on frame F. F null means |
2832 | return the global definition. FACE_NAME may be a string or a | |
2833 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
92610620 GM |
2834 | text properties; ediff uses that). If FACE_NAME is an alias for |
2835 | another face, return that face's definition. If SIGNAL_P is | |
2836 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2837 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2838 | name. */ | |
82641697 GM |
2839 | |
2840 | static INLINE Lisp_Object | |
2841 | lface_from_face_name (f, face_name, signal_p) | |
2842 | struct frame *f; | |
2843 | Lisp_Object face_name; | |
2844 | int signal_p; | |
2845 | { | |
c7ae3284 | 2846 | Lisp_Object lface; |
82641697 | 2847 | |
c7ae3284 | 2848 | face_name = resolve_face_name (face_name); |
92610620 | 2849 | |
82641697 GM |
2850 | if (f) |
2851 | lface = assq_no_quit (face_name, f->face_alist); | |
2852 | else | |
2853 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2854 | ||
2855 | if (CONSP (lface)) | |
2856 | lface = XCDR (lface); | |
2857 | else if (signal_p) | |
2858 | signal_error ("Invalid face", face_name); | |
2859 | ||
2860 | check_lface (lface); | |
2861 | return lface; | |
2862 | } | |
2863 | ||
2864 | ||
2865 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2866 | frame F. Store the resulting attributes in ATTRS which must point | |
2867 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2868 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2869 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2870 | ||
2871 | static INLINE int | |
2872 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2873 | struct frame *f; | |
2874 | Lisp_Object face_name; | |
2875 | Lisp_Object *attrs; | |
2876 | int signal_p; | |
2877 | { | |
2878 | Lisp_Object lface; | |
2879 | int success_p; | |
2880 | ||
2881 | lface = lface_from_face_name (f, face_name, signal_p); | |
2882 | if (!NILP (lface)) | |
2883 | { | |
2884 | bcopy (XVECTOR (lface)->contents, attrs, | |
2885 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2886 | success_p = 1; | |
2887 | } | |
2888 | else | |
2889 | success_p = 0; | |
2890 | ||
2891 | return success_p; | |
2892 | } | |
2893 | ||
2894 | ||
2895 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2896 | specified, i.e. are non-nil. */ | |
2897 | ||
2898 | static int | |
2899 | lface_fully_specified_p (attrs) | |
2900 | Lisp_Object *attrs; | |
2901 | { | |
2902 | int i; | |
2903 | ||
2904 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
d2cafc8c | 2905 | if (UNSPECIFIEDP (attrs[i]) && i != LFACE_FONT_INDEX) |
82641697 GM |
2906 | break; |
2907 | ||
2908 | return i == LFACE_VECTOR_SIZE; | |
2909 | } | |
2910 | ||
c3cee013 | 2911 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 2912 | |
39506348 KH |
2913 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
2914 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
2915 | unspecified attributes of LFACE. The exception is `font' | |
2916 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
2917 | ||
2918 | If FONTNAME is not available on frame F, | |
2919 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
2920 | If the fullname is not in a valid XLFD format, | |
2921 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
2922 | in LFACE and return 1. | |
2923 | Otherwise, return 1. */ | |
82641697 GM |
2924 | |
2925 | static int | |
39506348 | 2926 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
2927 | struct frame *f; |
2928 | Lisp_Object lface; | |
39506348 | 2929 | Lisp_Object fontname; |
3221576b | 2930 | int force_p, may_fail_p; |
82641697 GM |
2931 | { |
2932 | struct font_name font; | |
2933 | char *buffer; | |
2934 | int pt; | |
39506348 KH |
2935 | int have_xlfd_p; |
2936 | int fontset; | |
2937 | char *font_name = XSTRING (fontname)->data; | |
2938 | struct font_info *font_info; | |
82641697 | 2939 | |
39506348 KH |
2940 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
2941 | fontset = fs_query_fontset (fontname, 0); | |
2942 | if (fontset >= 0) | |
2943 | font_name = XSTRING (fontset_ascii (fontset))->data; | |
2944 | ||
2945 | /* Check if FONT_NAME is surely available on the system. Usually | |
2946 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
2947 | returns quickly. But, even if FONT_NAME is not yet cached, | |
2948 | caching it now is not futail because we anyway load the font | |
2949 | later. */ | |
2950 | BLOCK_INPUT; | |
2951 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
2952 | UNBLOCK_INPUT; | |
82641697 | 2953 | |
39506348 | 2954 | if (!font_info) |
3221576b GM |
2955 | { |
2956 | if (may_fail_p) | |
2957 | return 0; | |
39506348 | 2958 | abort (); |
3221576b | 2959 | } |
39506348 KH |
2960 | |
2961 | font.name = STRDUPA (font_info->full_name); | |
2962 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 2963 | |
82641697 | 2964 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
2965 | new frames would never take effect. If we couldn't get a font |
2966 | name conforming to XLFD, set normal values. */ | |
82641697 GM |
2967 | |
2968 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) | |
2969 | { | |
39506348 KH |
2970 | Lisp_Object val; |
2971 | if (have_xlfd_p) | |
2972 | { | |
2973 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
2974 | + strlen (font.fields[XLFD_FOUNDRY]) | |
2975 | + 2); | |
2976 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
2977 | font.fields[XLFD_FAMILY]); | |
2978 | val = build_string (buffer); | |
2979 | } | |
2980 | else | |
2981 | val = build_string ("*"); | |
2982 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
2983 | } |
2984 | ||
2985 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
2986 | { | |
39506348 KH |
2987 | if (have_xlfd_p) |
2988 | pt = xlfd_point_size (f, &font); | |
2989 | else | |
2990 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
2991 | xassert (pt > 0); |
2992 | LFACE_HEIGHT (lface) = make_number (pt); | |
2993 | } | |
2994 | ||
2995 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
2996 | LFACE_SWIDTH (lface) |
2997 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 GM |
2998 | |
2999 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
39506348 KH |
3000 | LFACE_WEIGHT (lface) |
3001 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3002 | |
3003 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3004 | LFACE_SLANT (lface) |
3005 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3006 | |
39506348 | 3007 | LFACE_FONT (lface) = fontname; |
82641697 GM |
3008 | |
3009 | return 1; | |
3010 | } | |
c3cee013 | 3011 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3012 | |
3013 | ||
3014 | /* Merge two Lisp face attribute vectors FROM and TO and store the | |
3015 | resulting attributes in TO. Every non-nil attribute of FROM | |
3016 | overrides the corresponding attribute of TO. */ | |
3017 | ||
3018 | static INLINE void | |
3019 | merge_face_vectors (from, to) | |
3020 | Lisp_Object *from, *to; | |
3021 | { | |
3022 | int i; | |
3023 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3024 | if (!UNSPECIFIEDP (from[i])) | |
3025 | to[i] = from[i]; | |
3026 | } | |
3027 | ||
3028 | ||
3029 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
3030 | is a face property, determine the resulting face attributes on | |
3031 | frame F, and store them in TO. PROP may be a single face | |
3032 | specification or a list of such specifications. Each face | |
3033 | specification can be | |
3034 | ||
3035 | 1. A symbol or string naming a Lisp face. | |
3036 | ||
3037 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3038 | KEYWORD is a face attribute name, and value is an appropriate value | |
3039 | for that attribute. | |
3040 | ||
3041 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3042 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3043 | for compatibility with 20.2. | |
3044 | ||
3045 | Face specifications earlier in lists take precedence over later | |
3046 | specifications. */ | |
3047 | ||
3048 | static void | |
3049 | merge_face_vector_with_property (f, to, prop) | |
3050 | struct frame *f; | |
3051 | Lisp_Object *to; | |
3052 | Lisp_Object prop; | |
3053 | { | |
3054 | if (CONSP (prop)) | |
3055 | { | |
3056 | Lisp_Object first = XCAR (prop); | |
3057 | ||
3058 | if (EQ (first, Qforeground_color) | |
3059 | || EQ (first, Qbackground_color)) | |
3060 | { | |
3061 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3062 | . COLOR). COLOR must be a string. */ | |
3063 | Lisp_Object color_name = XCDR (prop); | |
3064 | Lisp_Object color = first; | |
3065 | ||
3066 | if (STRINGP (color_name)) | |
3067 | { | |
3068 | if (EQ (color, Qforeground_color)) | |
3069 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3070 | else | |
3071 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3072 | } | |
3073 | else | |
1b8f7fbc | 3074 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
3075 | } |
3076 | else if (SYMBOLP (first) | |
3077 | && *XSYMBOL (first)->name->data == ':') | |
3078 | { | |
3079 | /* Assume this is the property list form. */ | |
3080 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
3081 | { | |
3082 | Lisp_Object keyword = XCAR (prop); | |
3083 | Lisp_Object value = XCAR (XCDR (prop)); | |
3084 | ||
3085 | if (EQ (keyword, QCfamily)) | |
3086 | { | |
3087 | if (STRINGP (value)) | |
3088 | to[LFACE_FAMILY_INDEX] = value; | |
3089 | else | |
1b8f7fbc | 3090 | add_to_log ("Illegal face font family", value, Qnil); |
82641697 GM |
3091 | } |
3092 | else if (EQ (keyword, QCheight)) | |
3093 | { | |
3094 | if (INTEGERP (value)) | |
3095 | to[LFACE_HEIGHT_INDEX] = value; | |
3096 | else | |
1b8f7fbc | 3097 | add_to_log ("Illegal face font height", value, Qnil); |
82641697 GM |
3098 | } |
3099 | else if (EQ (keyword, QCweight)) | |
3100 | { | |
3101 | if (SYMBOLP (value) | |
3102 | && face_numeric_weight (value) >= 0) | |
3103 | to[LFACE_WEIGHT_INDEX] = value; | |
3104 | else | |
1b8f7fbc | 3105 | add_to_log ("Illegal face weight", value, Qnil); |
82641697 GM |
3106 | } |
3107 | else if (EQ (keyword, QCslant)) | |
3108 | { | |
3109 | if (SYMBOLP (value) | |
3110 | && face_numeric_slant (value) >= 0) | |
3111 | to[LFACE_SLANT_INDEX] = value; | |
3112 | else | |
1b8f7fbc | 3113 | add_to_log ("Illegal face slant", value, Qnil); |
82641697 GM |
3114 | } |
3115 | else if (EQ (keyword, QCunderline)) | |
3116 | { | |
3117 | if (EQ (value, Qt) | |
3118 | || NILP (value) | |
3119 | || STRINGP (value)) | |
3120 | to[LFACE_UNDERLINE_INDEX] = value; | |
3121 | else | |
1b8f7fbc | 3122 | add_to_log ("Illegal face underline", value, Qnil); |
82641697 GM |
3123 | } |
3124 | else if (EQ (keyword, QCoverline)) | |
3125 | { | |
3126 | if (EQ (value, Qt) | |
3127 | || NILP (value) | |
3128 | || STRINGP (value)) | |
3129 | to[LFACE_OVERLINE_INDEX] = value; | |
3130 | else | |
1b8f7fbc | 3131 | add_to_log ("Illegal face overline", value, Qnil); |
82641697 GM |
3132 | } |
3133 | else if (EQ (keyword, QCstrike_through)) | |
3134 | { | |
3135 | if (EQ (value, Qt) | |
3136 | || NILP (value) | |
3137 | || STRINGP (value)) | |
3138 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3139 | else | |
1b8f7fbc | 3140 | add_to_log ("Illegal face strike-through", value, Qnil); |
82641697 GM |
3141 | } |
3142 | else if (EQ (keyword, QCbox)) | |
3143 | { | |
3144 | if (EQ (value, Qt)) | |
3145 | value = make_number (1); | |
3146 | if (INTEGERP (value) | |
3147 | || STRINGP (value) | |
3148 | || CONSP (value) | |
3149 | || NILP (value)) | |
3150 | to[LFACE_BOX_INDEX] = value; | |
3151 | else | |
1b8f7fbc | 3152 | add_to_log ("Illegal face box", value, Qnil); |
82641697 GM |
3153 | } |
3154 | else if (EQ (keyword, QCinverse_video) | |
3155 | || EQ (keyword, QCreverse_video)) | |
3156 | { | |
3157 | if (EQ (value, Qt) || NILP (value)) | |
3158 | to[LFACE_INVERSE_INDEX] = value; | |
3159 | else | |
1b8f7fbc | 3160 | add_to_log ("Illegal face inverse-video", value, Qnil); |
82641697 GM |
3161 | } |
3162 | else if (EQ (keyword, QCforeground)) | |
3163 | { | |
3164 | if (STRINGP (value)) | |
3165 | to[LFACE_FOREGROUND_INDEX] = value; | |
3166 | else | |
1b8f7fbc | 3167 | add_to_log ("Illegal face foreground", value, Qnil); |
82641697 GM |
3168 | } |
3169 | else if (EQ (keyword, QCbackground)) | |
3170 | { | |
3171 | if (STRINGP (value)) | |
3172 | to[LFACE_BACKGROUND_INDEX] = value; | |
3173 | else | |
1b8f7fbc | 3174 | add_to_log ("Illegal face background", value, Qnil); |
82641697 GM |
3175 | } |
3176 | else if (EQ (keyword, QCstipple)) | |
3177 | { | |
3178 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3179 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3180 | if (!NILP (pixmap_p)) |
3181 | to[LFACE_STIPPLE_INDEX] = value; | |
3182 | else | |
1b8f7fbc | 3183 | add_to_log ("Illegal face stipple", value, Qnil); |
82641697 GM |
3184 | #endif |
3185 | } | |
3186 | else if (EQ (keyword, QCwidth)) | |
3187 | { | |
3188 | if (SYMBOLP (value) | |
3189 | && face_numeric_swidth (value) >= 0) | |
3190 | to[LFACE_SWIDTH_INDEX] = value; | |
3191 | else | |
1b8f7fbc | 3192 | add_to_log ("Illegal face width", value, Qnil); |
82641697 GM |
3193 | } |
3194 | else | |
1b8f7fbc | 3195 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3196 | keyword, Qnil); |
82641697 GM |
3197 | |
3198 | prop = XCDR (XCDR (prop)); | |
3199 | } | |
3200 | } | |
3201 | else | |
3202 | { | |
3203 | /* This is a list of face specs. Specifications at the | |
3204 | beginning of the list take precedence over later | |
3205 | specifications, so we have to merge starting with the | |
3206 | last specification. */ | |
3207 | Lisp_Object next = XCDR (prop); | |
3208 | if (!NILP (next)) | |
3209 | merge_face_vector_with_property (f, to, next); | |
3210 | merge_face_vector_with_property (f, to, first); | |
3211 | } | |
3212 | } | |
3213 | else | |
3214 | { | |
3215 | /* PROP ought to be a face name. */ | |
3216 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3217 | if (NILP (lface)) | |
1b8f7fbc | 3218 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 GM |
3219 | else |
3220 | merge_face_vectors (XVECTOR (lface)->contents, to); | |
3221 | } | |
3222 | } | |
3223 | ||
3224 | ||
3225 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3226 | Sinternal_make_lisp_face, 1, 2, 0, | |
3227 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
3228 | If FACE was not known as a face before, create a new one.\n\ | |
3229 | If optional argument FRAME is specified, make a frame-local face\n\ | |
3230 | for that frame. Otherwise operate on the global face definition.\n\ | |
3231 | Value is a vector of face attributes.") | |
3232 | (face, frame) | |
3233 | Lisp_Object face, frame; | |
3234 | { | |
3235 | Lisp_Object global_lface, lface; | |
3236 | struct frame *f; | |
3237 | int i; | |
3238 | ||
3239 | CHECK_SYMBOL (face, 0); | |
3240 | global_lface = lface_from_face_name (NULL, face, 0); | |
3241 | ||
3242 | if (!NILP (frame)) | |
3243 | { | |
3244 | CHECK_LIVE_FRAME (frame, 1); | |
3245 | f = XFRAME (frame); | |
3246 | lface = lface_from_face_name (f, face, 0); | |
3247 | } | |
3248 | else | |
3249 | f = NULL, lface = Qnil; | |
3250 | ||
3251 | /* Add a global definition if there is none. */ | |
3252 | if (NILP (global_lface)) | |
3253 | { | |
3254 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3255 | Qunspecified); | |
3256 | XVECTOR (global_lface)->contents[0] = Qface; | |
3257 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), | |
3258 | Vface_new_frame_defaults); | |
3259 | ||
3260 | /* Assign the new Lisp face a unique ID. The mapping from Lisp | |
3261 | face id to Lisp face is given by the vector lface_id_to_name. | |
3262 | The mapping from Lisp face to Lisp face id is given by the | |
3263 | property `face' of the Lisp face name. */ | |
3264 | if (next_lface_id == lface_id_to_name_size) | |
3265 | { | |
3266 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3267 | int sz = new_size * sizeof *lface_id_to_name; | |
3268 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3269 | lface_id_to_name_size = new_size; | |
3270 | } | |
3271 | ||
3272 | lface_id_to_name[next_lface_id] = face; | |
3273 | Fput (face, Qface, make_number (next_lface_id)); | |
3274 | ++next_lface_id; | |
3275 | } | |
3276 | else if (f == NULL) | |
3277 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3278 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
3279 | ||
3280 | /* Add a frame-local definition. */ | |
3281 | if (f) | |
3282 | { | |
3283 | if (NILP (lface)) | |
3284 | { | |
3285 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3286 | Qunspecified); | |
3287 | XVECTOR (lface)->contents[0] = Qface; | |
3288 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3289 | } | |
3290 | else | |
3291 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3292 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3293 | } | |
3294 | else | |
3295 | lface = global_lface; | |
3296 | ||
3297 | xassert (LFACEP (lface)); | |
3298 | check_lface (lface); | |
3299 | return lface; | |
3300 | } | |
3301 | ||
3302 | ||
3303 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3304 | Sinternal_lisp_face_p, 1, 2, 0, | |
3305 | "Return non-nil if FACE names a face.\n\ | |
3306 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3307 | existence of a frame-local face with name FACE on that frame.\n\ | |
3308 | Otherwise check for the existence of a global face.") | |
3309 | (face, frame) | |
3310 | Lisp_Object face, frame; | |
3311 | { | |
3312 | Lisp_Object lface; | |
3313 | ||
3314 | if (!NILP (frame)) | |
3315 | { | |
3316 | CHECK_LIVE_FRAME (frame, 1); | |
3317 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3318 | } | |
3319 | else | |
3320 | lface = lface_from_face_name (NULL, face, 0); | |
3321 | ||
3322 | return lface; | |
3323 | } | |
3324 | ||
3325 | ||
3326 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3327 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3328 | "Copy face FROM to TO.\n\ | |
3329 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3330 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3331 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3332 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3333 | \n\ | |
3334 | Value is TO.") | |
3335 | (from, to, frame, new_frame) | |
3336 | Lisp_Object from, to, frame, new_frame; | |
3337 | { | |
3338 | Lisp_Object lface, copy; | |
3339 | ||
3340 | CHECK_SYMBOL (from, 0); | |
3341 | CHECK_SYMBOL (to, 1); | |
3342 | if (NILP (new_frame)) | |
3343 | new_frame = frame; | |
3344 | ||
3345 | if (EQ (frame, Qt)) | |
3346 | { | |
3347 | /* Copy global definition of FROM. We don't make copies of | |
3348 | strings etc. because 20.2 didn't do it either. */ | |
3349 | lface = lface_from_face_name (NULL, from, 1); | |
3350 | copy = Finternal_make_lisp_face (to, Qnil); | |
3351 | } | |
3352 | else | |
3353 | { | |
3354 | /* Copy frame-local definition of FROM. */ | |
3355 | CHECK_LIVE_FRAME (frame, 2); | |
3356 | CHECK_LIVE_FRAME (new_frame, 3); | |
3357 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3358 | copy = Finternal_make_lisp_face (to, new_frame); | |
3359 | } | |
3360 | ||
3361 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, | |
3362 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
3363 | ||
3364 | return to; | |
3365 | } | |
3366 | ||
3367 | ||
3368 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3369 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3370 | "Set attribute ATTR of FACE to VALUE.\n\ | |
3371 | If optional argument FRAME is given, set the face attribute of face FACE\n\ | |
3372 | on that frame. If FRAME is t, set the attribute of the default for face\n\ | |
3373 | FACE (for new frames). If FRAME is omitted or nil, use the selected\n\ | |
3374 | frame.") | |
3375 | (face, attr, value, frame) | |
3376 | Lisp_Object face, attr, value, frame; | |
3377 | { | |
3378 | Lisp_Object lface; | |
3379 | Lisp_Object old_value = Qnil; | |
39506348 KH |
3380 | /* Set 1 if ATTR is QCfont. */ |
3381 | int font_attr_p = 0; | |
3382 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 GM |
3383 | int font_related_attr_p = 0; |
3384 | ||
3385 | CHECK_SYMBOL (face, 0); | |
3386 | CHECK_SYMBOL (attr, 1); | |
3387 | ||
c7ae3284 GM |
3388 | face = resolve_face_name (face); |
3389 | ||
82641697 GM |
3390 | /* Set lface to the Lisp attribute vector of FACE. */ |
3391 | if (EQ (frame, Qt)) | |
3392 | lface = lface_from_face_name (NULL, face, 1); | |
3393 | else | |
3394 | { | |
3395 | if (NILP (frame)) | |
c0617987 | 3396 | frame = selected_frame; |
82641697 GM |
3397 | |
3398 | CHECK_LIVE_FRAME (frame, 3); | |
3399 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3400 | ||
3401 | /* If a frame-local face doesn't exist yet, create one. */ | |
3402 | if (NILP (lface)) | |
3403 | lface = Finternal_make_lisp_face (face, frame); | |
3404 | } | |
3405 | ||
3406 | if (EQ (attr, QCfamily)) | |
3407 | { | |
3408 | if (!UNSPECIFIEDP (value)) | |
3409 | { | |
3410 | CHECK_STRING (value, 3); | |
3411 | if (XSTRING (value)->size == 0) | |
3412 | signal_error ("Invalid face family", value); | |
3413 | } | |
3414 | old_value = LFACE_FAMILY (lface); | |
3415 | LFACE_FAMILY (lface) = value; | |
3416 | font_related_attr_p = 1; | |
3417 | } | |
3418 | else if (EQ (attr, QCheight)) | |
3419 | { | |
3420 | if (!UNSPECIFIEDP (value)) | |
3421 | { | |
3422 | CHECK_NUMBER (value, 3); | |
3423 | if (XINT (value) <= 0) | |
3424 | signal_error ("Invalid face height", value); | |
3425 | } | |
3426 | old_value = LFACE_HEIGHT (lface); | |
3427 | LFACE_HEIGHT (lface) = value; | |
3428 | font_related_attr_p = 1; | |
3429 | } | |
3430 | else if (EQ (attr, QCweight)) | |
3431 | { | |
3432 | if (!UNSPECIFIEDP (value)) | |
3433 | { | |
3434 | CHECK_SYMBOL (value, 3); | |
3435 | if (face_numeric_weight (value) < 0) | |
3436 | signal_error ("Invalid face weight", value); | |
3437 | } | |
3438 | old_value = LFACE_WEIGHT (lface); | |
3439 | LFACE_WEIGHT (lface) = value; | |
3440 | font_related_attr_p = 1; | |
3441 | } | |
3442 | else if (EQ (attr, QCslant)) | |
3443 | { | |
3444 | if (!UNSPECIFIEDP (value)) | |
3445 | { | |
3446 | CHECK_SYMBOL (value, 3); | |
3447 | if (face_numeric_slant (value) < 0) | |
3448 | signal_error ("Invalid face slant", value); | |
3449 | } | |
3450 | old_value = LFACE_SLANT (lface); | |
3451 | LFACE_SLANT (lface) = value; | |
3452 | font_related_attr_p = 1; | |
3453 | } | |
3454 | else if (EQ (attr, QCunderline)) | |
3455 | { | |
3456 | if (!UNSPECIFIEDP (value)) | |
3457 | if ((SYMBOLP (value) | |
3458 | && !EQ (value, Qt) | |
3459 | && !EQ (value, Qnil)) | |
3460 | /* Underline color. */ | |
3461 | || (STRINGP (value) | |
3462 | && XSTRING (value)->size == 0)) | |
3463 | signal_error ("Invalid face underline", value); | |
3464 | ||
3465 | old_value = LFACE_UNDERLINE (lface); | |
3466 | LFACE_UNDERLINE (lface) = value; | |
3467 | } | |
3468 | else if (EQ (attr, QCoverline)) | |
3469 | { | |
3470 | if (!UNSPECIFIEDP (value)) | |
3471 | if ((SYMBOLP (value) | |
3472 | && !EQ (value, Qt) | |
3473 | && !EQ (value, Qnil)) | |
3474 | /* Overline color. */ | |
3475 | || (STRINGP (value) | |
3476 | && XSTRING (value)->size == 0)) | |
3477 | signal_error ("Invalid face overline", value); | |
3478 | ||
3479 | old_value = LFACE_OVERLINE (lface); | |
3480 | LFACE_OVERLINE (lface) = value; | |
3481 | } | |
3482 | else if (EQ (attr, QCstrike_through)) | |
3483 | { | |
3484 | if (!UNSPECIFIEDP (value)) | |
3485 | if ((SYMBOLP (value) | |
3486 | && !EQ (value, Qt) | |
3487 | && !EQ (value, Qnil)) | |
3488 | /* Strike-through color. */ | |
3489 | || (STRINGP (value) | |
3490 | && XSTRING (value)->size == 0)) | |
3491 | signal_error ("Invalid face strike-through", value); | |
3492 | ||
3493 | old_value = LFACE_STRIKE_THROUGH (lface); | |
3494 | LFACE_STRIKE_THROUGH (lface) = value; | |
3495 | } | |
3496 | else if (EQ (attr, QCbox)) | |
3497 | { | |
3498 | int valid_p; | |
3499 | ||
3500 | /* Allow t meaning a simple box of width 1 in foreground color | |
3501 | of the face. */ | |
3502 | if (EQ (value, Qt)) | |
3503 | value = make_number (1); | |
3504 | ||
3505 | if (UNSPECIFIEDP (value)) | |
3506 | valid_p = 1; | |
3507 | else if (NILP (value)) | |
3508 | valid_p = 1; | |
3509 | else if (INTEGERP (value)) | |
3510 | valid_p = XINT (value) > 0; | |
3511 | else if (STRINGP (value)) | |
3512 | valid_p = XSTRING (value)->size > 0; | |
3513 | else if (CONSP (value)) | |
3514 | { | |
3515 | Lisp_Object tem; | |
3516 | ||
3517 | tem = value; | |
3518 | while (CONSP (tem)) | |
3519 | { | |
3520 | Lisp_Object k, v; | |
3521 | ||
3522 | k = XCAR (tem); | |
3523 | tem = XCDR (tem); | |
3524 | if (!CONSP (tem)) | |
3525 | break; | |
3526 | v = XCAR (tem); | |
3527 | tem = XCDR (tem); | |
3528 | ||
3529 | if (EQ (k, QCline_width)) | |
3530 | { | |
3531 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3532 | break; | |
3533 | } | |
3534 | else if (EQ (k, QCcolor)) | |
3535 | { | |
3536 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3537 | break; | |
3538 | } | |
3539 | else if (EQ (k, QCstyle)) | |
3540 | { | |
3541 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3542 | break; | |
3543 | } | |
3544 | else | |
3545 | break; | |
3546 | } | |
3547 | ||
3548 | valid_p = NILP (tem); | |
3549 | } | |
3550 | else | |
3551 | valid_p = 0; | |
3552 | ||
3553 | if (!valid_p) | |
3554 | signal_error ("Invalid face box", value); | |
3555 | ||
3556 | old_value = LFACE_BOX (lface); | |
3557 | LFACE_BOX (lface) = value; | |
3558 | } | |
3559 | else if (EQ (attr, QCinverse_video) | |
3560 | || EQ (attr, QCreverse_video)) | |
3561 | { | |
3562 | if (!UNSPECIFIEDP (value)) | |
3563 | { | |
3564 | CHECK_SYMBOL (value, 3); | |
3565 | if (!EQ (value, Qt) && !NILP (value)) | |
3566 | signal_error ("Invalid inverse-video face attribute value", value); | |
3567 | } | |
3568 | old_value = LFACE_INVERSE (lface); | |
3569 | LFACE_INVERSE (lface) = value; | |
3570 | } | |
3571 | else if (EQ (attr, QCforeground)) | |
3572 | { | |
ef917393 | 3573 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3574 | { |
3575 | /* Don't check for valid color names here because it depends | |
3576 | on the frame (display) whether the color will be valid | |
3577 | when the face is realized. */ | |
3578 | CHECK_STRING (value, 3); | |
3579 | if (XSTRING (value)->size == 0) | |
3580 | signal_error ("Empty foreground color value", value); | |
3581 | } | |
3582 | old_value = LFACE_FOREGROUND (lface); | |
3583 | LFACE_FOREGROUND (lface) = value; | |
3584 | } | |
3585 | else if (EQ (attr, QCbackground)) | |
3586 | { | |
ef917393 | 3587 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3588 | { |
3589 | /* Don't check for valid color names here because it depends | |
3590 | on the frame (display) whether the color will be valid | |
3591 | when the face is realized. */ | |
3592 | CHECK_STRING (value, 3); | |
3593 | if (XSTRING (value)->size == 0) | |
3594 | signal_error ("Empty background color value", value); | |
3595 | } | |
3596 | old_value = LFACE_BACKGROUND (lface); | |
3597 | LFACE_BACKGROUND (lface) = value; | |
3598 | } | |
3599 | else if (EQ (attr, QCstipple)) | |
3600 | { | |
3601 | #ifdef HAVE_X_WINDOWS | |
3602 | if (!UNSPECIFIEDP (value) | |
3603 | && !NILP (value) | |
fef04523 | 3604 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
3605 | signal_error ("Invalid stipple attribute", value); |
3606 | old_value = LFACE_STIPPLE (lface); | |
3607 | LFACE_STIPPLE (lface) = value; | |
3608 | #endif /* HAVE_X_WINDOWS */ | |
3609 | } | |
3610 | else if (EQ (attr, QCwidth)) | |
3611 | { | |
3612 | if (!UNSPECIFIEDP (value)) | |
3613 | { | |
3614 | CHECK_SYMBOL (value, 3); | |
3615 | if (face_numeric_swidth (value) < 0) | |
3616 | signal_error ("Invalid face width", value); | |
3617 | } | |
3618 | old_value = LFACE_SWIDTH (lface); | |
3619 | LFACE_SWIDTH (lface) = value; | |
3620 | font_related_attr_p = 1; | |
3621 | } | |
3622 | else if (EQ (attr, QCfont)) | |
3623 | { | |
c3cee013 | 3624 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
3625 | /* Set font-related attributes of the Lisp face from an |
3626 | XLFD font name. */ | |
3627 | struct frame *f; | |
39506348 | 3628 | Lisp_Object tmp; |
82641697 GM |
3629 | |
3630 | CHECK_STRING (value, 3); | |
3631 | if (EQ (frame, Qt)) | |
c0617987 | 3632 | f = SELECTED_FRAME (); |
82641697 GM |
3633 | else |
3634 | f = check_x_frame (frame); | |
3635 | ||
39506348 KH |
3636 | /* VALUE may be a fontset name or an alias of fontset. In such |
3637 | a case, use the base fontset name. */ | |
3638 | tmp = Fquery_fontset (value, Qnil); | |
3639 | if (!NILP (tmp)) | |
3640 | value = tmp; | |
3641 | ||
3642 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
3643 | signal_error ("Invalid font or fontset name", value); | |
3644 | ||
3645 | font_attr_p = 1; | |
c3cee013 | 3646 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3647 | } |
3648 | else if (EQ (attr, QCbold)) | |
3649 | { | |
3650 | old_value = LFACE_WEIGHT (lface); | |
3651 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3652 | font_related_attr_p = 1; | |
3653 | } | |
3654 | else if (EQ (attr, QCitalic)) | |
3655 | { | |
3656 | old_value = LFACE_SLANT (lface); | |
3657 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3658 | font_related_attr_p = 1; | |
3659 | } | |
3660 | else | |
3661 | signal_error ("Invalid face attribute name", attr); | |
3662 | ||
39506348 KH |
3663 | if (font_related_attr_p |
3664 | && !UNSPECIFIEDP (value)) | |
3665 | /* If a font-related attribute other than QCfont is specified, the | |
3666 | original `font' attribute nor that of default face is useless | |
3667 | to determine a new font. Thus, we set it to nil so that font | |
3668 | selection mechanism doesn't use it. */ | |
3669 | LFACE_FONT (lface) = Qnil; | |
3670 | ||
82641697 GM |
3671 | /* Changing a named face means that all realized faces depending on |
3672 | that face are invalid. Since we cannot tell which realized faces | |
3673 | depend on the face, make sure they are all removed. This is done | |
3674 | by incrementing face_change_count. The next call to | |
3675 | init_iterator will then free realized faces. */ | |
3676 | if (!EQ (frame, Qt) | |
3677 | && (EQ (attr, QCfont) | |
3678 | || NILP (Fequal (old_value, value)))) | |
3679 | { | |
3680 | ++face_change_count; | |
3681 | ++windows_or_buffers_changed; | |
3682 | } | |
3683 | ||
c3cee013 | 3684 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
3685 | |
3686 | if (!EQ (frame, Qt) | |
3687 | && !UNSPECIFIEDP (value) | |
82641697 | 3688 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3689 | { |
3690 | Lisp_Object param; | |
3691 | ||
3692 | param = Qnil; | |
3693 | ||
3694 | if (EQ (face, Qdefault)) | |
3695 | { | |
3696 | /* Changed font-related attributes of the `default' face are | |
3697 | reflected in changed `font' frame parameters. */ | |
39506348 | 3698 | if ((font_related_attr_p || font_attr_p) |
8bd201d6 GM |
3699 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
3700 | set_font_frame_param (frame, lface); | |
3701 | else if (EQ (attr, QCforeground)) | |
3702 | param = Qforeground_color; | |
3703 | else if (EQ (attr, QCbackground)) | |
3704 | param = Qbackground_color; | |
3705 | } | |
c3cee013 | 3706 | #ifndef WINDOWSNT |
8bd201d6 GM |
3707 | else if (EQ (face, Qscroll_bar)) |
3708 | { | |
3709 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3710 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3711 | if (EQ (attr, QCforeground)) | |
3712 | param = Qscroll_bar_foreground; | |
3713 | else if (EQ (attr, QCbackground)) | |
3714 | param = Qscroll_bar_background; | |
3715 | } | |
c3cee013 | 3716 | #endif |
8bd201d6 GM |
3717 | else if (EQ (face, Qborder)) |
3718 | { | |
3719 | /* Changing background color of `border' sets frame parameter | |
3720 | `border-color'. */ | |
3721 | if (EQ (attr, QCbackground)) | |
3722 | param = Qborder_color; | |
3723 | } | |
3724 | else if (EQ (face, Qcursor)) | |
3725 | { | |
3726 | /* Changing background color of `cursor' sets frame parameter | |
3727 | `cursor-color'. */ | |
3728 | if (EQ (attr, QCbackground)) | |
3729 | param = Qcursor_color; | |
3730 | } | |
3731 | else if (EQ (face, Qmouse)) | |
3732 | { | |
3733 | /* Changing background color of `mouse' sets frame parameter | |
3734 | `mouse-color'. */ | |
3735 | if (EQ (attr, QCbackground)) | |
3736 | param = Qmouse_color; | |
3737 | } | |
3738 | ||
39506348 | 3739 | if (!NILP (param)) |
8bd201d6 GM |
3740 | Fmodify_frame_parameters (frame, Fcons (Fcons (param, value), Qnil)); |
3741 | } | |
82641697 | 3742 | |
c3cee013 | 3743 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3744 | |
3745 | return face; | |
3746 | } | |
3747 | ||
3748 | ||
c3cee013 | 3749 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 3750 | |
39506348 KH |
3751 | /* Set the `font' frame parameter of FRAME determined from `default' |
3752 | face attributes LFACE. If a face or fontset name is explicitely | |
3753 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
3754 | from the other font-related atrributes of LFACE. In that case, if | |
3755 | there's no matching font, signals an error. */ | |
82641697 GM |
3756 | |
3757 | static void | |
3758 | set_font_frame_param (frame, lface) | |
3759 | Lisp_Object frame, lface; | |
3760 | { | |
3761 | struct frame *f = XFRAME (frame); | |
39506348 | 3762 | Lisp_Object font_name; |
82641697 GM |
3763 | char *font; |
3764 | ||
39506348 KH |
3765 | if (STRINGP (LFACE_FONT (lface))) |
3766 | font_name = LFACE_FONT (lface); | |
82641697 GM |
3767 | else |
3768 | { | |
39506348 KH |
3769 | /* Choose a font name that reflects LFACE's attributes and has |
3770 | the registry and encoding pattern specified in the default | |
3771 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
3772 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0); | |
3773 | if (!font) | |
3774 | error ("No font matches the specified attribute"); | |
3775 | font_name = build_string (font); | |
3776 | xfree (font); | |
82641697 | 3777 | } |
39506348 | 3778 | store_frame_param (f, Qfont, font_name); |
82641697 GM |
3779 | } |
3780 | ||
3781 | ||
8bd201d6 GM |
3782 | /* Update the corresponding face when frame parameter PARAM on frame F |
3783 | has been assigned the value NEW_VALUE. */ | |
3784 | ||
3785 | void | |
3786 | update_face_from_frame_parameter (f, param, new_value) | |
3787 | struct frame *f; | |
3788 | Lisp_Object param, new_value; | |
3789 | { | |
3790 | Lisp_Object lface; | |
3791 | ||
3792 | /* If there are no faces yet, give up. This is the case when called | |
3793 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 3794 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
3795 | if (NILP (f->face_alist)) |
3796 | return; | |
3797 | ||
3798 | if (EQ (param, Qforeground_color)) | |
3799 | { | |
3800 | lface = lface_from_face_name (f, Qdefault, 1); | |
3801 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
3802 | ? new_value : Qunspecified); | |
3803 | realize_basic_faces (f); | |
3804 | } | |
3805 | else if (EQ (param, Qbackground_color)) | |
3806 | { | |
92610620 GM |
3807 | Lisp_Object frame; |
3808 | ||
3809 | /* Changing the background color might change the background | |
3810 | mode, so that we have to load new defface specs. Call | |
3811 | frame-update-face-colors to do that. */ | |
3812 | XSETFRAME (frame, f); | |
3813 | call1 (Qframe_update_face_colors, frame); | |
3814 | ||
8bd201d6 GM |
3815 | lface = lface_from_face_name (f, Qdefault, 1); |
3816 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3817 | ? new_value : Qunspecified); | |
3818 | realize_basic_faces (f); | |
3819 | } | |
3820 | if (EQ (param, Qborder_color)) | |
3821 | { | |
3822 | lface = lface_from_face_name (f, Qborder, 1); | |
3823 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3824 | ? new_value : Qunspecified); | |
3825 | } | |
3826 | else if (EQ (param, Qcursor_color)) | |
3827 | { | |
3828 | lface = lface_from_face_name (f, Qcursor, 1); | |
3829 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3830 | ? new_value : Qunspecified); | |
3831 | } | |
3832 | else if (EQ (param, Qmouse_color)) | |
3833 | { | |
3834 | lface = lface_from_face_name (f, Qmouse, 1); | |
3835 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
3836 | ? new_value : Qunspecified); | |
3837 | } | |
3838 | } | |
3839 | ||
3840 | ||
82641697 GM |
3841 | /* Get the value of X resource RESOURCE, class CLASS for the display |
3842 | of frame FRAME. This is here because ordinary `x-get-resource' | |
3843 | doesn't take a frame argument. */ | |
3844 | ||
3845 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
3846 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
3847 | (resource, class, frame) | |
3848 | Lisp_Object resource, class, frame; | |
3849 | { | |
c3cee013 JR |
3850 | Lisp_Object value = Qnil; |
3851 | #ifndef WINDOWSNT | |
82641697 GM |
3852 | CHECK_STRING (resource, 0); |
3853 | CHECK_STRING (class, 1); | |
3854 | CHECK_LIVE_FRAME (frame, 2); | |
3855 | BLOCK_INPUT; | |
3856 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
3857 | resource, class, Qnil, Qnil); | |
3858 | UNBLOCK_INPUT; | |
c3cee013 | 3859 | #endif |
82641697 GM |
3860 | return value; |
3861 | } | |
3862 | ||
3863 | ||
3864 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
3865 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
3866 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
3867 | error; if SIGNAL_P is zero, return 0. */ | |
3868 | ||
3869 | static Lisp_Object | |
3870 | face_boolean_x_resource_value (value, signal_p) | |
3871 | Lisp_Object value; | |
3872 | int signal_p; | |
3873 | { | |
3874 | Lisp_Object result = make_number (0); | |
3875 | ||
3876 | xassert (STRINGP (value)); | |
3877 | ||
3878 | if (xstricmp (XSTRING (value)->data, "on") == 0 | |
3879 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
3880 | result = Qt; | |
3881 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
3882 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
3883 | result = Qnil; | |
3884 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3885 | result = Qunspecified; | |
3886 | else if (signal_p) | |
3887 | signal_error ("Invalid face attribute value from X resource", value); | |
3888 | ||
3889 | return result; | |
3890 | } | |
3891 | ||
3892 | ||
3893 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
3894 | Finternal_set_lisp_face_attribute_from_resource, | |
3895 | Sinternal_set_lisp_face_attribute_from_resource, | |
3896 | 3, 4, 0, "") | |
3897 | (face, attr, value, frame) | |
3898 | Lisp_Object face, attr, value, frame; | |
3899 | { | |
3900 | CHECK_SYMBOL (face, 0); | |
3901 | CHECK_SYMBOL (attr, 1); | |
3902 | CHECK_STRING (value, 2); | |
3903 | ||
3904 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
3905 | value = Qunspecified; | |
3906 | else if (EQ (attr, QCheight)) | |
3907 | { | |
3908 | value = Fstring_to_number (value, make_number (10)); | |
3909 | if (XINT (value) <= 0) | |
3910 | signal_error ("Invalid face height from X resource", value); | |
3911 | } | |
3912 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
3913 | value = face_boolean_x_resource_value (value, 1); | |
3914 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
3915 | value = intern (XSTRING (value)->data); | |
3916 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
3917 | value = face_boolean_x_resource_value (value, 1); | |
3918 | else if (EQ (attr, QCunderline) | |
3919 | || EQ (attr, QCoverline) | |
3920 | || EQ (attr, QCstrike_through) | |
3921 | || EQ (attr, QCbox)) | |
3922 | { | |
3923 | Lisp_Object boolean_value; | |
3924 | ||
3925 | /* If the result of face_boolean_x_resource_value is t or nil, | |
3926 | VALUE does NOT specify a color. */ | |
3927 | boolean_value = face_boolean_x_resource_value (value, 0); | |
3928 | if (SYMBOLP (boolean_value)) | |
3929 | value = boolean_value; | |
3930 | } | |
3931 | ||
3932 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3933 | } | |
3934 | ||
c3cee013 | 3935 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 3936 | |
c7ae3284 | 3937 | \f |
c3cee013 | 3938 | #ifdef HAVE_X_WINDOWS |
c7ae3284 GM |
3939 | /*********************************************************************** |
3940 | Menu face | |
3941 | ***********************************************************************/ | |
3942 | ||
3943 | #ifdef USE_X_TOOLKIT | |
3944 | ||
3945 | /* Structure used to pass X resources to functions called via | |
3946 | XtApplyToWidgets. */ | |
3947 | ||
3948 | struct x_resources | |
3949 | { | |
3950 | Arg *av; | |
3951 | int ac; | |
3952 | }; | |
3953 | ||
3954 | ||
3955 | #ifdef USE_MOTIF | |
3956 | ||
3957 | static void xm_apply_resources P_ ((Widget, XtPointer)); | |
3958 | static void xm_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
3959 | ||
3960 | ||
3961 | /* Set widget W's X resources from P which points to an x_resources | |
3962 | structure. If W is a cascade button, apply resources to W's | |
3963 | submenu. */ | |
3964 | ||
3965 | static void | |
3966 | xm_apply_resources (w, p) | |
3967 | Widget w; | |
3968 | XtPointer p; | |
3969 | { | |
3970 | Widget submenu = 0; | |
3971 | struct x_resources *res = (struct x_resources *) p; | |
3972 | ||
3973 | XtSetValues (w, res->av, res->ac); | |
3974 | XtVaGetValues (w, XmNsubMenuId, &submenu, NULL); | |
3975 | if (submenu) | |
3976 | { | |
3977 | XtSetValues (submenu, res->av, res->ac); | |
3978 | XtApplyToWidgets (submenu, xm_apply_resources, p); | |
3979 | } | |
3980 | } | |
3981 | ||
3982 | ||
3983 | /* Set X resources of menu-widget WIDGET on frame F from face `menu'. | |
3984 | This is the LessTif/Motif version. As of LessTif 0.88 it has the | |
3985 | following problems: | |
3986 | ||
3987 | 1. Setting the XmNfontList resource leads to an infinite loop | |
3988 | somewhere in LessTif. */ | |
3989 | ||
3990 | static void | |
3991 | xm_set_menu_resources_from_menu_face (f, widget) | |
3992 | struct frame *f; | |
3993 | Widget widget; | |
3994 | { | |
3995 | struct face *face; | |
3996 | Lisp_Object lface; | |
3997 | Arg av[3]; | |
3998 | int ac = 0; | |
3999 | XmFontList fl = 0; | |
4000 | ||
4001 | lface = lface_from_face_name (f, Qmenu, 1); | |
4002 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4003 | ||
4004 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
4005 | { | |
4006 | XtSetArg (av[ac], XmNforeground, face->foreground); | |
4007 | ++ac; | |
4008 | } | |
4009 | ||
4010 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
4011 | { | |
4012 | XtSetArg (av[ac], XmNbackground, face->background); | |
4013 | ++ac; | |
4014 | } | |
4015 | ||
4016 | /* If any font-related attribute of `menu' is set, set the font. */ | |
4017 | if (face->font | |
4018 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4019 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4020 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4021 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4022 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4023 | { | |
4024 | #if 0 /* Setting the font leads to an infinite loop somewhere | |
4025 | in LessTif during geometry computation. */ | |
4026 | XmFontListEntry fe; | |
4027 | fe = XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT, face->font); | |
4028 | fl = XmFontListAppendEntry (NULL, fe); | |
4029 | XtSetArg (av[ac], XmNfontList, fl); | |
4030 | ++ac; | |
4031 | #endif | |
4032 | } | |
4033 | ||
4034 | xassert (ac <= sizeof av / sizeof *av); | |
4035 | ||
4036 | if (ac) | |
4037 | { | |
4038 | struct x_resources res; | |
4039 | ||
4040 | XtSetValues (widget, av, ac); | |
4041 | res.av = av, res.ac = ac; | |
4042 | XtApplyToWidgets (widget, xm_apply_resources, &res); | |
4043 | if (fl) | |
4044 | XmFontListFree (fl); | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | ||
4049 | #endif /* USE_MOTIF */ | |
4050 | ||
4051 | #ifdef USE_LUCID | |
4052 | ||
4053 | static void xl_apply_resources P_ ((Widget, XtPointer)); | |
4054 | static void xl_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
4055 | ||
4056 | ||
4057 | /* Set widget W's resources from P which points to an x_resources | |
4058 | structure. */ | |
4059 | ||
4060 | static void | |
4061 | xl_apply_resources (widget, p) | |
4062 | Widget widget; | |
4063 | XtPointer p; | |
4064 | { | |
4065 | struct x_resources *res = (struct x_resources *) p; | |
4066 | XtSetValues (widget, res->av, res->ac); | |
4067 | } | |
4068 | ||
4069 | ||
4070 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. | |
4071 | This is the Lucid version. */ | |
4072 | ||
4073 | static void | |
4074 | xl_set_menu_resources_from_menu_face (f, widget) | |
4075 | struct frame *f; | |
4076 | Widget widget; | |
4077 | { | |
4078 | struct face *face; | |
4079 | Lisp_Object lface; | |
4080 | Arg av[3]; | |
4081 | int ac = 0; | |
4082 | ||
4083 | lface = lface_from_face_name (f, Qmenu, 1); | |
4084 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4085 | ||
4086 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
4087 | { | |
4088 | XtSetArg (av[ac], XtNforeground, face->foreground); | |
4089 | ++ac; | |
4090 | } | |
4091 | ||
4092 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
4093 | { | |
4094 | XtSetArg (av[ac], XtNbackground, face->background); | |
4095 | ++ac; | |
4096 | } | |
4097 | ||
4098 | if (face->font | |
4099 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4100 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4101 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4102 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4103 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4104 | { | |
4105 | XtSetArg (av[ac], XtNfont, face->font); | |
4106 | ++ac; | |
4107 | } | |
4108 | ||
4109 | if (ac) | |
4110 | { | |
4111 | struct x_resources res; | |
4112 | ||
4113 | XtSetValues (widget, av, ac); | |
4114 | ||
4115 | /* We must do children here in case we're handling a pop-up menu | |
4116 | in which case WIDGET is a popup shell. XtApplyToWidgets | |
4117 | is a function from lwlib. */ | |
4118 | res.av = av, res.ac = ac; | |
4119 | XtApplyToWidgets (widget, xl_apply_resources, &res); | |
4120 | } | |
4121 | } | |
4122 | ||
4123 | #endif /* USE_LUCID */ | |
4124 | ||
4125 | ||
4126 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */ | |
4127 | ||
4128 | void | |
4129 | x_set_menu_resources_from_menu_face (f, widget) | |
4130 | struct frame *f; | |
4131 | Widget widget; | |
4132 | { | |
15daa944 GM |
4133 | /* Realized faces may have been removed on frame F, e.g. because of |
4134 | face attribute changes. Recompute them, if necessary, since we | |
4135 | will need the `menu' face. */ | |
4136 | if (f->face_cache->used == 0) | |
4137 | recompute_basic_faces (f); | |
4138 | ||
c7ae3284 GM |
4139 | #ifdef USE_LUCID |
4140 | xl_set_menu_resources_from_menu_face (f, widget); | |
4141 | #endif | |
4142 | #ifdef USE_MOTIF | |
4143 | xm_set_menu_resources_from_menu_face (f, widget); | |
4144 | #endif | |
4145 | } | |
4146 | ||
4147 | #endif /* USE_X_TOOLKIT */ | |
4148 | ||
82641697 GM |
4149 | #endif /* HAVE_X_WINDOWS */ |
4150 | ||
4151 | ||
4152 | ||
4153 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4154 | Sinternal_get_lisp_face_attribute, | |
4155 | 2, 3, 0, | |
4156 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
4157 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
4158 | face attribute name, signal an error.\n\ | |
4159 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
4160 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
4161 | frames). If FRAME is omitted or nil, use the selected frame.") | |
4162 | (symbol, keyword, frame) | |
4163 | Lisp_Object symbol, keyword, frame; | |
4164 | { | |
4165 | Lisp_Object lface, value = Qnil; | |
4166 | ||
4167 | CHECK_SYMBOL (symbol, 0); | |
4168 | CHECK_SYMBOL (keyword, 1); | |
4169 | ||
4170 | if (EQ (frame, Qt)) | |
4171 | lface = lface_from_face_name (NULL, symbol, 1); | |
4172 | else | |
4173 | { | |
4174 | if (NILP (frame)) | |
c0617987 | 4175 | frame = selected_frame; |
82641697 GM |
4176 | CHECK_LIVE_FRAME (frame, 2); |
4177 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
4178 | } | |
4179 | ||
4180 | if (EQ (keyword, QCfamily)) | |
4181 | value = LFACE_FAMILY (lface); | |
4182 | else if (EQ (keyword, QCheight)) | |
4183 | value = LFACE_HEIGHT (lface); | |
4184 | else if (EQ (keyword, QCweight)) | |
4185 | value = LFACE_WEIGHT (lface); | |
4186 | else if (EQ (keyword, QCslant)) | |
4187 | value = LFACE_SLANT (lface); | |
4188 | else if (EQ (keyword, QCunderline)) | |
4189 | value = LFACE_UNDERLINE (lface); | |
4190 | else if (EQ (keyword, QCoverline)) | |
4191 | value = LFACE_OVERLINE (lface); | |
4192 | else if (EQ (keyword, QCstrike_through)) | |
4193 | value = LFACE_STRIKE_THROUGH (lface); | |
4194 | else if (EQ (keyword, QCbox)) | |
4195 | value = LFACE_BOX (lface); | |
4196 | else if (EQ (keyword, QCinverse_video) | |
4197 | || EQ (keyword, QCreverse_video)) | |
4198 | value = LFACE_INVERSE (lface); | |
4199 | else if (EQ (keyword, QCforeground)) | |
4200 | value = LFACE_FOREGROUND (lface); | |
4201 | else if (EQ (keyword, QCbackground)) | |
4202 | value = LFACE_BACKGROUND (lface); | |
4203 | else if (EQ (keyword, QCstipple)) | |
4204 | value = LFACE_STIPPLE (lface); | |
4205 | else if (EQ (keyword, QCwidth)) | |
4206 | value = LFACE_SWIDTH (lface); | |
39506348 KH |
4207 | else if (EQ (keyword, QCfont)) |
4208 | value = LFACE_FONT (lface); | |
82641697 GM |
4209 | else |
4210 | signal_error ("Invalid face attribute name", keyword); | |
4211 | ||
4212 | return value; | |
4213 | } | |
4214 | ||
4215 | ||
4216 | DEFUN ("internal-lisp-face-attribute-values", | |
4217 | Finternal_lisp_face_attribute_values, | |
4218 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
4219 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
4220 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
4221 | (attr) | |
4222 | Lisp_Object attr; | |
4223 | { | |
4224 | Lisp_Object result = Qnil; | |
4225 | ||
4226 | CHECK_SYMBOL (attr, 0); | |
4227 | ||
4228 | if (EQ (attr, QCweight) | |
4229 | || EQ (attr, QCslant) | |
4230 | || EQ (attr, QCwidth)) | |
4231 | { | |
4232 | /* Extract permissible symbols from tables. */ | |
4233 | struct table_entry *table; | |
4234 | int i, dim; | |
4235 | ||
4236 | if (EQ (attr, QCweight)) | |
4237 | table = weight_table, dim = DIM (weight_table); | |
4238 | else if (EQ (attr, QCslant)) | |
4239 | table = slant_table, dim = DIM (slant_table); | |
4240 | else | |
4241 | table = swidth_table, dim = DIM (swidth_table); | |
4242 | ||
4243 | for (i = 0; i < dim; ++i) | |
4244 | { | |
4245 | Lisp_Object symbol = *table[i].symbol; | |
4246 | Lisp_Object tail = result; | |
4247 | ||
4248 | while (!NILP (tail) | |
4249 | && !EQ (XCAR (tail), symbol)) | |
4250 | tail = XCDR (tail); | |
4251 | ||
4252 | if (NILP (tail)) | |
4253 | result = Fcons (symbol, result); | |
4254 | } | |
4255 | } | |
4256 | else if (EQ (attr, QCunderline)) | |
4257 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4258 | else if (EQ (attr, QCoverline)) | |
4259 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4260 | else if (EQ (attr, QCstrike_through)) | |
4261 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4262 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4263 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4264 | ||
4265 | return result; | |
4266 | } | |
4267 | ||
4268 | ||
4269 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
4270 | Sinternal_merge_in_global_face, 2, 2, 0, | |
4271 | "Add attributes from frame-default definition of FACE to FACE on FRAME.") | |
4272 | (face, frame) | |
4273 | Lisp_Object face, frame; | |
4274 | { | |
4275 | Lisp_Object global_lface, local_lface; | |
4276 | CHECK_LIVE_FRAME (frame, 1); | |
4277 | global_lface = lface_from_face_name (NULL, face, 1); | |
4278 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4279 | if (NILP (local_lface)) | |
4280 | local_lface = Finternal_make_lisp_face (face, frame); | |
4281 | merge_face_vectors (XVECTOR (global_lface)->contents, | |
4282 | XVECTOR (local_lface)->contents); | |
4283 | return face; | |
4284 | } | |
4285 | ||
4286 | ||
4287 | /* The following function is implemented for compatibility with 20.2. | |
4288 | The function is used in x-resolve-fonts when it is asked to | |
4289 | return fonts with the same size as the font of a face. This is | |
4290 | done in fontset.el. */ | |
4291 | ||
4292 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, | |
4293 | "Return the font name of face FACE, or nil if it is unspecified.\n\ | |
4294 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4295 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4296 | The font default for a face is either nil, or a list\n\ | |
4297 | of the form (bold), (italic) or (bold italic).\n\ | |
4298 | If FRAME is omitted or nil, use the selected frame.") | |
4299 | (face, frame) | |
4300 | Lisp_Object face, frame; | |
4301 | { | |
4302 | if (EQ (frame, Qt)) | |
4303 | { | |
4304 | Lisp_Object result = Qnil; | |
4305 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4306 | ||
4307 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4308 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4309 | result = Fcons (Qbold, result); | |
4310 | ||
4311 | if (!NILP (LFACE_SLANT (lface)) | |
4312 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
4313 | result = Fcons (Qitalic, result); | |
4314 | ||
4315 | return result; | |
4316 | } | |
4317 | else | |
4318 | { | |
4319 | struct frame *f = frame_or_selected_frame (frame, 1); | |
39506348 | 4320 | int face_id = lookup_named_face (f, face, 0); |
82641697 GM |
4321 | struct face *face = FACE_FROM_ID (f, face_id); |
4322 | return build_string (face->font_name); | |
4323 | } | |
4324 | } | |
4325 | ||
4326 | ||
4327 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4328 | all attributes are `equal'. Tries to be fast because this function | |
4329 | is called quite often. */ | |
4330 | ||
4331 | static INLINE int | |
4332 | lface_equal_p (v1, v2) | |
4333 | Lisp_Object *v1, *v2; | |
4334 | { | |
4335 | int i, equal_p = 1; | |
4336 | ||
4337 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4338 | { | |
4339 | Lisp_Object a = v1[i]; | |
4340 | Lisp_Object b = v2[i]; | |
4341 | ||
4342 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4343 | and the other is specified. */ | |
4344 | equal_p = XTYPE (a) == XTYPE (b); | |
4345 | if (!equal_p) | |
4346 | break; | |
4347 | ||
4348 | if (!EQ (a, b)) | |
4349 | { | |
4350 | switch (XTYPE (a)) | |
4351 | { | |
4352 | case Lisp_String: | |
4353 | equal_p = (XSTRING (a)->size == XSTRING (b)->size | |
4354 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, | |
4355 | XSTRING (a)->size) == 0); | |
4356 | break; | |
4357 | ||
4358 | case Lisp_Int: | |
4359 | case Lisp_Symbol: | |
4360 | equal_p = 0; | |
4361 | break; | |
4362 | ||
4363 | default: | |
4364 | equal_p = !NILP (Fequal (a, b)); | |
4365 | break; | |
4366 | } | |
4367 | } | |
4368 | } | |
4369 | ||
4370 | return equal_p; | |
4371 | } | |
4372 | ||
4373 | ||
4374 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4375 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
4376 | "True if FACE1 and FACE2 are equal.\n\ | |
4377 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4378 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4379 | If FRAME is omitted or nil, use the selected frame.") | |
4380 | (face1, face2, frame) | |
4381 | Lisp_Object face1, face2, frame; | |
4382 | { | |
4383 | int equal_p; | |
4384 | struct frame *f; | |
4385 | Lisp_Object lface1, lface2; | |
4386 | ||
4387 | if (EQ (frame, Qt)) | |
4388 | f = NULL; | |
4389 | else | |
4390 | /* Don't use check_x_frame here because this function is called | |
4391 | before X frames exist. At that time, if FRAME is nil, | |
4392 | selected_frame will be used which is the frame dumped with | |
4393 | Emacs. That frame is not an X frame. */ | |
4394 | f = frame_or_selected_frame (frame, 2); | |
4395 | ||
4396 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4397 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4398 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4399 | XVECTOR (lface2)->contents); | |
4400 | return equal_p ? Qt : Qnil; | |
4401 | } | |
4402 | ||
4403 | ||
4404 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, | |
4405 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
4406 | "True if FACE has no attribute specified.\n\ | |
4407 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4408 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4409 | If FRAME is omitted or nil, use the selected frame.") | |
4410 | (face, frame) | |
4411 | Lisp_Object face, frame; | |
4412 | { | |
4413 | struct frame *f; | |
4414 | Lisp_Object lface; | |
4415 | int i; | |
4416 | ||
4417 | if (NILP (frame)) | |
c0617987 GM |
4418 | frame = selected_frame; |
4419 | CHECK_LIVE_FRAME (frame, 0); | |
4420 | f = XFRAME (frame); | |
82641697 GM |
4421 | |
4422 | if (EQ (frame, Qt)) | |
4423 | lface = lface_from_face_name (NULL, face, 1); | |
4424 | else | |
4425 | lface = lface_from_face_name (f, face, 1); | |
4426 | ||
4427 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4428 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
4429 | break; | |
4430 | ||
4431 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; | |
4432 | } | |
4433 | ||
4434 | ||
4435 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
4436 | 0, 1, 0, | |
4437 | "Return an alist of frame-local faces defined on FRAME.\n\ | |
4438 | For internal use only.") | |
4439 | (frame) | |
4440 | Lisp_Object frame; | |
4441 | { | |
4442 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4443 | return f->face_alist; | |
4444 | } | |
4445 | ||
4446 | ||
4447 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4448 | below in computing a hash value for a Lisp face. */ | |
4449 | ||
4450 | static INLINE unsigned | |
4451 | hash_string_case_insensitive (string) | |
4452 | Lisp_Object string; | |
4453 | { | |
4454 | unsigned char *s; | |
4455 | unsigned hash = 0; | |
4456 | xassert (STRINGP (string)); | |
4457 | for (s = XSTRING (string)->data; *s; ++s) | |
4458 | hash = (hash << 1) ^ tolower (*s); | |
4459 | return hash; | |
4460 | } | |
4461 | ||
4462 | ||
4463 | /* Return a hash code for face attribute vector V. */ | |
4464 | ||
4465 | static INLINE unsigned | |
4466 | lface_hash (v) | |
4467 | Lisp_Object *v; | |
4468 | { | |
4469 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4470 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4471 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
4472 | ^ (unsigned) v[LFACE_WEIGHT_INDEX] | |
4473 | ^ (unsigned) v[LFACE_SLANT_INDEX] | |
4474 | ^ (unsigned) v[LFACE_SWIDTH_INDEX] | |
4475 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); | |
4476 | } | |
4477 | ||
4478 | ||
4479 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4480 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
4481 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
4482 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
4483 | |
4484 | static INLINE int | |
4485 | lface_same_font_attributes_p (lface1, lface2) | |
4486 | Lisp_Object *lface1, *lface2; | |
4487 | { | |
4488 | xassert (lface_fully_specified_p (lface1) | |
4489 | && lface_fully_specified_p (lface2)); | |
4490 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4491 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
4492 | && (XFASTINT (lface1[LFACE_HEIGHT_INDEX]) | |
4493 | == XFASTINT (lface2[LFACE_HEIGHT_INDEX])) | |
4494 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) | |
4495 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
39506348 KH |
4496 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
4497 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
4498 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 4499 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
39506348 KH |
4500 | && xstricmp (XSTRING (lface1[LFACE_FONT_INDEX])->data, |
4501 | XSTRING (lface2[LFACE_FONT_INDEX])->data)))); | |
82641697 GM |
4502 | } |
4503 | ||
4504 | ||
4505 | \f | |
4506 | /*********************************************************************** | |
4507 | Realized Faces | |
4508 | ***********************************************************************/ | |
4509 | ||
4510 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4511 | vector ATTR. */ |
82641697 GM |
4512 | |
4513 | static struct face * | |
39506348 | 4514 | make_realized_face (attr) |
82641697 | 4515 | Lisp_Object *attr; |
82641697 GM |
4516 | { |
4517 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4518 | bzero (face, sizeof *face); | |
39506348 | 4519 | face->ascii_face = face; |
82641697 GM |
4520 | bcopy (attr, face->lface, sizeof face->lface); |
4521 | return face; | |
4522 | } | |
4523 | ||
4524 | ||
4525 | /* Free realized face FACE, including its X resources. FACE may | |
4526 | be null. */ | |
4527 | ||
4528 | static void | |
4529 | free_realized_face (f, face) | |
4530 | struct frame *f; | |
4531 | struct face *face; | |
4532 | { | |
4533 | if (face) | |
4534 | { | |
c3cee013 JR |
4535 | #ifdef HAVE_WINDOW_SYSTEM |
4536 | if (FRAME_WINDOW_P (f)) | |
82641697 | 4537 | { |
39506348 KH |
4538 | /* Free fontset of FACE if it is ASCII face. */ |
4539 | if (face->fontset >= 0 && face == face->ascii_face) | |
4540 | free_face_fontset (f, face); | |
82641697 GM |
4541 | if (face->gc) |
4542 | { | |
4543 | x_free_gc (f, face->gc); | |
4544 | face->gc = 0; | |
4545 | } | |
4546 | ||
4547 | free_face_colors (f, face); | |
4548 | x_destroy_bitmap (f, face->stipple); | |
4549 | } | |
c3cee013 | 4550 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4551 | |
4552 | xfree (face); | |
4553 | } | |
4554 | } | |
4555 | ||
4556 | ||
4557 | /* Prepare face FACE for subsequent display on frame F. This | |
4558 | allocated GCs if they haven't been allocated yet or have been freed | |
4559 | by clearing the face cache. */ | |
4560 | ||
4561 | void | |
4562 | prepare_face_for_display (f, face) | |
4563 | struct frame *f; | |
4564 | struct face *face; | |
4565 | { | |
c3cee013 JR |
4566 | #ifdef HAVE_WINDOW_SYSTEM |
4567 | xassert (FRAME_WINDOW_P (f)); | |
82641697 GM |
4568 | |
4569 | if (face->gc == 0) | |
4570 | { | |
4571 | XGCValues xgcv; | |
4572 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4573 | ||
4574 | xgcv.foreground = face->foreground; | |
4575 | xgcv.background = face->background; | |
c3cee013 | 4576 | #ifdef HAVE_X_WINDOWS |
82641697 | 4577 | xgcv.graphics_exposures = False; |
c3cee013 | 4578 | #endif |
82641697 GM |
4579 | /* The font of FACE may be null if we couldn't load it. */ |
4580 | if (face->font) | |
4581 | { | |
c3cee013 | 4582 | #ifdef HAVE_X_WINDOWS |
82641697 | 4583 | xgcv.font = face->font->fid; |
c3cee013 JR |
4584 | #endif |
4585 | #ifdef WINDOWSNT | |
4586 | xgcv.font = face->font; | |
4587 | #endif | |
82641697 GM |
4588 | mask |= GCFont; |
4589 | } | |
4590 | ||
4591 | BLOCK_INPUT; | |
c3cee013 | 4592 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
4593 | if (face->stipple) |
4594 | { | |
be8a72f4 | 4595 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4596 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4597 | mask |= GCFillStyle | GCStipple; | |
4598 | } | |
c3cee013 | 4599 | #endif |
82641697 GM |
4600 | face->gc = x_create_gc (f, mask, &xgcv); |
4601 | UNBLOCK_INPUT; | |
4602 | } | |
c3cee013 | 4603 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4604 | } |
4605 | ||
82641697 GM |
4606 | \f |
4607 | /*********************************************************************** | |
4608 | Face Cache | |
4609 | ***********************************************************************/ | |
4610 | ||
4611 | /* Return a new face cache for frame F. */ | |
4612 | ||
4613 | static struct face_cache * | |
4614 | make_face_cache (f) | |
4615 | struct frame *f; | |
4616 | { | |
4617 | struct face_cache *c; | |
4618 | int size; | |
4619 | ||
4620 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4621 | bzero (c, sizeof *c); | |
4622 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4623 | c->buckets = (struct face **) xmalloc (size); | |
4624 | bzero (c->buckets, size); | |
4625 | c->size = 50; | |
4626 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4627 | c->f = f; | |
4628 | return c; | |
4629 | } | |
4630 | ||
4631 | ||
4632 | /* Clear out all graphics contexts for all realized faces, except for | |
4633 | the basic faces. This should be done from time to time just to avoid | |
4634 | keeping too many graphics contexts that are no longer needed. */ | |
4635 | ||
4636 | static void | |
4637 | clear_face_gcs (c) | |
4638 | struct face_cache *c; | |
4639 | { | |
c3cee013 | 4640 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 4641 | { |
c3cee013 | 4642 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4643 | int i; |
4644 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4645 | { | |
4646 | struct face *face = c->faces_by_id[i]; | |
4647 | if (face && face->gc) | |
4648 | { | |
4649 | x_free_gc (c->f, face->gc); | |
4650 | face->gc = 0; | |
4651 | } | |
4652 | } | |
c3cee013 | 4653 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4654 | } |
4655 | } | |
4656 | ||
4657 | ||
4658 | /* Free all realized faces in face cache C, including basic faces. C | |
4659 | may be null. If faces are freed, make sure the frame's current | |
4660 | matrix is marked invalid, so that a display caused by an expose | |
4661 | event doesn't try to use faces we destroyed. */ | |
4662 | ||
4663 | static void | |
4664 | free_realized_faces (c) | |
4665 | struct face_cache *c; | |
4666 | { | |
4667 | if (c && c->used) | |
4668 | { | |
4669 | int i, size; | |
4670 | struct frame *f = c->f; | |
4671 | ||
4672 | for (i = 0; i < c->used; ++i) | |
4673 | { | |
4674 | free_realized_face (f, c->faces_by_id[i]); | |
4675 | c->faces_by_id[i] = NULL; | |
4676 | } | |
4677 | ||
4678 | c->used = 0; | |
4679 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4680 | bzero (c->buckets, size); | |
4681 | ||
4682 | /* Must do a thorough redisplay the next time. Mark current | |
4683 | matrices as invalid because they will reference faces freed | |
4684 | above. This function is also called when a frame is | |
4685 | destroyed. In this case, the root window of F is nil. */ | |
4686 | if (WINDOWP (f->root_window)) | |
4687 | { | |
4688 | clear_current_matrices (f); | |
4689 | ++windows_or_buffers_changed; | |
4690 | } | |
4691 | } | |
4692 | } | |
4693 | ||
4694 | ||
39506348 KH |
4695 | /* Free all faces realized for multibyte characters on frame F that |
4696 | has FONTSET. */ | |
4697 | ||
4698 | void | |
4699 | free_realized_multibyte_face (f, fontset) | |
4700 | struct frame *f; | |
4701 | int fontset; | |
4702 | { | |
4703 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
4704 | struct face *face; | |
4705 | int i; | |
4706 | ||
4707 | for (i = 0; i < cache->used; i++) | |
4708 | { | |
4709 | face = cache->faces_by_id[i]; | |
4710 | if (face | |
4711 | && face != face->ascii_face | |
4712 | && face->fontset == fontset) | |
4713 | { | |
4714 | uncache_face (cache, face); | |
4715 | free_realized_face (f, face); | |
4716 | } | |
4717 | } | |
4718 | if (WINDOWP (f->root_window)) | |
4719 | { | |
4720 | clear_current_matrices (f); | |
4721 | ++windows_or_buffers_changed; | |
4722 | } | |
4723 | } | |
4724 | ||
4725 | ||
82641697 GM |
4726 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
4727 | This is done after attributes of a named face have been changed, | |
4728 | because we can't tell which realized faces depend on that face. */ | |
4729 | ||
4730 | void | |
4731 | free_all_realized_faces (frame) | |
4732 | Lisp_Object frame; | |
4733 | { | |
4734 | if (NILP (frame)) | |
4735 | { | |
4736 | Lisp_Object rest; | |
4737 | FOR_EACH_FRAME (rest, frame) | |
4738 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4739 | } | |
4740 | else | |
4741 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
4742 | } | |
4743 | ||
4744 | ||
4745 | /* Free face cache C and faces in it, including their X resources. */ | |
4746 | ||
4747 | static void | |
4748 | free_face_cache (c) | |
4749 | struct face_cache *c; | |
4750 | { | |
4751 | if (c) | |
4752 | { | |
4753 | free_realized_faces (c); | |
4754 | xfree (c->buckets); | |
4755 | xfree (c->faces_by_id); | |
4756 | xfree (c); | |
4757 | } | |
4758 | } | |
4759 | ||
4760 | ||
4761 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
4762 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
4763 | collision list of the face hash table of C. This is done because | |
39506348 KH |
4764 | otherwise lookup_face would find FACE for every character, even if |
4765 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
4766 | |
4767 | static void | |
4768 | cache_face (c, face, hash) | |
4769 | struct face_cache *c; | |
4770 | struct face *face; | |
4771 | unsigned hash; | |
4772 | { | |
4773 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4774 | ||
4775 | face->hash = hash; | |
4776 | ||
4777 | if (face->fontset >= 0) | |
4778 | { | |
4779 | struct face *last = c->buckets[i]; | |
4780 | if (last) | |
4781 | { | |
4782 | while (last->next) | |
4783 | last = last->next; | |
4784 | last->next = face; | |
4785 | face->prev = last; | |
4786 | face->next = NULL; | |
4787 | } | |
4788 | else | |
4789 | { | |
4790 | c->buckets[i] = face; | |
4791 | face->prev = face->next = NULL; | |
4792 | } | |
4793 | } | |
4794 | else | |
4795 | { | |
4796 | face->prev = NULL; | |
4797 | face->next = c->buckets[i]; | |
4798 | if (face->next) | |
4799 | face->next->prev = face; | |
4800 | c->buckets[i] = face; | |
4801 | } | |
4802 | ||
4803 | /* Find a free slot in C->faces_by_id and use the index of the free | |
4804 | slot as FACE->id. */ | |
4805 | for (i = 0; i < c->used; ++i) | |
4806 | if (c->faces_by_id[i] == NULL) | |
4807 | break; | |
4808 | face->id = i; | |
4809 | ||
4810 | /* Maybe enlarge C->faces_by_id. */ | |
4811 | if (i == c->used && c->used == c->size) | |
4812 | { | |
4813 | int new_size = 2 * c->size; | |
4814 | int sz = new_size * sizeof *c->faces_by_id; | |
4815 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
4816 | c->size = new_size; | |
4817 | } | |
4818 | ||
4819 | #if GLYPH_DEBUG | |
4820 | /* Check that FACE got a unique id. */ | |
4821 | { | |
4822 | int j, n; | |
4823 | struct face *face; | |
4824 | ||
4825 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
4826 | for (face = c->buckets[j]; face; face = face->next) | |
4827 | if (face->id == i) | |
4828 | ++n; | |
4829 | ||
4830 | xassert (n == 1); | |
4831 | } | |
4832 | #endif /* GLYPH_DEBUG */ | |
4833 | ||
4834 | c->faces_by_id[i] = face; | |
4835 | if (i == c->used) | |
4836 | ++c->used; | |
4837 | } | |
4838 | ||
4839 | ||
4840 | /* Remove face FACE from cache C. */ | |
4841 | ||
4842 | static void | |
4843 | uncache_face (c, face) | |
4844 | struct face_cache *c; | |
4845 | struct face *face; | |
4846 | { | |
4847 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
4848 | ||
4849 | if (face->prev) | |
4850 | face->prev->next = face->next; | |
4851 | else | |
4852 | c->buckets[i] = face->next; | |
4853 | ||
4854 | if (face->next) | |
4855 | face->next->prev = face->prev; | |
4856 | ||
4857 | c->faces_by_id[face->id] = NULL; | |
4858 | if (face->id == c->used) | |
4859 | --c->used; | |
4860 | } | |
4861 | ||
4862 | ||
4863 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
4864 | of frame F. The face will be used to display character C. Value |
4865 | is the ID of the face found. If no suitable face is found, realize | |
4866 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
6702eace KH |
4867 | is a face for ASCII characters that has the same attributes. |
4868 | ||
4869 | When this function is called from face_for_char (in this case, C is | |
4870 | a multibyte character), a fontset of a face returned by | |
4871 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
4872 | C) is not sutisfied. The fontset is set for this face by | |
4873 | face_for_char later. */ | |
82641697 GM |
4874 | |
4875 | INLINE int | |
39506348 | 4876 | lookup_face (f, attr, c, base_face) |
82641697 GM |
4877 | struct frame *f; |
4878 | Lisp_Object *attr; | |
39506348 KH |
4879 | int c; |
4880 | struct face *base_face; | |
82641697 | 4881 | { |
39506348 | 4882 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
4883 | unsigned hash; |
4884 | int i; | |
4885 | struct face *face; | |
4886 | ||
39506348 | 4887 | xassert (cache != NULL); |
82641697 GM |
4888 | check_lface_attrs (attr); |
4889 | ||
4890 | /* Look up ATTR in the face cache. */ | |
4891 | hash = lface_hash (attr); | |
4892 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
4893 | ||
39506348 | 4894 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 4895 | if (face->hash == hash |
44747bd0 | 4896 | && (!FRAME_WINDOW_P (f) |
39506348 | 4897 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
4898 | && lface_equal_p (face->lface, attr)) |
4899 | break; | |
4900 | ||
4901 | /* If not found, realize a new face. */ | |
4902 | if (face == NULL) | |
39506348 | 4903 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
4904 | |
4905 | #if GLYPH_DEBUG | |
4906 | xassert (face == FACE_FROM_ID (f, face->id)); | |
c87a1fda | 4907 | #if 0 |
c3cee013 | 4908 | if (FRAME_WINDOW_P (f)) |
39506348 | 4909 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 4910 | #endif |
82641697 GM |
4911 | #endif /* GLYPH_DEBUG */ |
4912 | ||
4913 | return face->id; | |
4914 | } | |
4915 | ||
4916 | ||
4917 | /* Return the face id of the realized face for named face SYMBOL on | |
39506348 | 4918 | frame F suitable for displaying character C. */ |
82641697 GM |
4919 | |
4920 | int | |
39506348 | 4921 | lookup_named_face (f, symbol, c) |
82641697 GM |
4922 | struct frame *f; |
4923 | Lisp_Object symbol; | |
39506348 | 4924 | int c; |
82641697 GM |
4925 | { |
4926 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4927 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
4928 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4929 | ||
4930 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
4931 | bcopy (default_face->lface, attrs, sizeof attrs); | |
4932 | merge_face_vectors (symbol_attrs, attrs); | |
39506348 | 4933 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
4934 | } |
4935 | ||
4936 | ||
4937 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
4938 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
4939 | ||
4940 | int | |
4941 | ascii_face_of_lisp_face (f, lface_id) | |
4942 | struct frame *f; | |
4943 | int lface_id; | |
4944 | { | |
4945 | int face_id; | |
4946 | ||
4947 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) | |
4948 | { | |
4949 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
39506348 | 4950 | face_id = lookup_named_face (f, face_name, 0); |
82641697 GM |
4951 | } |
4952 | else | |
4953 | face_id = -1; | |
4954 | ||
4955 | return face_id; | |
4956 | } | |
4957 | ||
4958 | ||
4959 | /* Return a face for charset ASCII that is like the face with id | |
4960 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
4961 | STEPS < 0 means larger. Value is the id of the face. */ | |
4962 | ||
4963 | int | |
4964 | smaller_face (f, face_id, steps) | |
4965 | struct frame *f; | |
4966 | int face_id, steps; | |
39506348 | 4967 | { |
c3cee013 | 4968 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4969 | struct face *face; |
4970 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
4971 | int pt, last_pt, last_height; | |
4972 | int delta; | |
4973 | int new_face_id; | |
4974 | struct face *new_face; | |
4975 | ||
4976 | /* If not called for an X frame, just return the original face. */ | |
4977 | if (FRAME_TERMCAP_P (f)) | |
4978 | return face_id; | |
4979 | ||
4980 | /* Try in increments of 1/2 pt. */ | |
4981 | delta = steps < 0 ? 5 : -5; | |
4982 | steps = abs (steps); | |
4983 | ||
4984 | face = FACE_FROM_ID (f, face_id); | |
4985 | bcopy (face->lface, attrs, sizeof attrs); | |
4986 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
4987 | new_face_id = face_id; | |
4988 | last_height = FONT_HEIGHT (face->font); | |
4989 | ||
4990 | while (steps | |
4991 | && pt + delta > 0 | |
4992 | /* Give up if we cannot find a font within 10pt. */ | |
4993 | && abs (last_pt - pt) < 100) | |
4994 | { | |
4995 | /* Look up a face for a slightly smaller/larger font. */ | |
4996 | pt += delta; | |
4997 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 4998 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
4999 | new_face = FACE_FROM_ID (f, new_face_id); |
5000 | ||
5001 | /* If height changes, count that as one step. */ | |
5002 | if (FONT_HEIGHT (new_face->font) != last_height) | |
5003 | { | |
5004 | --steps; | |
5005 | last_height = FONT_HEIGHT (new_face->font); | |
5006 | last_pt = pt; | |
5007 | } | |
5008 | } | |
5009 | ||
5010 | return new_face_id; | |
5011 | ||
c3cee013 | 5012 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5013 | |
5014 | return face_id; | |
5015 | ||
c3cee013 | 5016 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5017 | } |
5018 | ||
5019 | ||
5020 | /* Return a face for charset ASCII that is like the face with id | |
5021 | FACE_ID on frame F, but has height HEIGHT. */ | |
5022 | ||
5023 | int | |
5024 | face_with_height (f, face_id, height) | |
5025 | struct frame *f; | |
5026 | int face_id; | |
5027 | int height; | |
5028 | { | |
c3cee013 | 5029 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5030 | struct face *face; |
5031 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5032 | ||
5033 | if (FRAME_TERMCAP_P (f) | |
5034 | || height <= 0) | |
5035 | return face_id; | |
5036 | ||
5037 | face = FACE_FROM_ID (f, face_id); | |
5038 | bcopy (face->lface, attrs, sizeof attrs); | |
5039 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5040 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5041 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5042 | |
5043 | return face_id; | |
5044 | } | |
5045 | ||
44747bd0 | 5046 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5047 | frame F suitable for displaying character C, and use attributes of |
5048 | the face FACE_ID for attributes that aren't completely specified by | |
5049 | SYMBOL. This is like lookup_named_face, except that the default | |
5050 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5051 | is assumed to be already realized. */ | |
44747bd0 EZ |
5052 | |
5053 | int | |
39506348 | 5054 | lookup_derived_face (f, symbol, c, face_id) |
44747bd0 EZ |
5055 | struct frame *f; |
5056 | Lisp_Object symbol; | |
39506348 | 5057 | int c; |
44747bd0 EZ |
5058 | int face_id; |
5059 | { | |
5060 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5061 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5062 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5063 | ||
5064 | if (!default_face) | |
5065 | abort (); | |
5066 | ||
5067 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5068 | bcopy (default_face->lface, attrs, sizeof attrs); | |
5069 | merge_face_vectors (symbol_attrs, attrs); | |
39506348 | 5070 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5071 | } |
5072 | ||
82641697 GM |
5073 | |
5074 | \f | |
5075 | /*********************************************************************** | |
5076 | Font selection | |
5077 | ***********************************************************************/ | |
5078 | ||
5079 | DEFUN ("internal-set-font-selection-order", | |
5080 | Finternal_set_font_selection_order, | |
5081 | Sinternal_set_font_selection_order, 1, 1, 0, | |
5082 | "Set font selection order for face font selection to ORDER.\n\ | |
5083 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
5084 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
5085 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
5086 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
5087 | a suitable height, and then tries to match the font weight.\n\ | |
5088 | Value is ORDER.") | |
5089 | (order) | |
5090 | Lisp_Object order; | |
5091 | { | |
5092 | Lisp_Object list; | |
5093 | int i; | |
5094 | int indices[4]; | |
5095 | ||
5096 | CHECK_LIST (order, 0); | |
5097 | bzero (indices, sizeof indices); | |
5098 | i = 0; | |
5099 | ||
5100 | for (list = order; | |
5101 | CONSP (list) && i < DIM (indices); | |
5102 | list = XCDR (list), ++i) | |
5103 | { | |
5104 | Lisp_Object attr = XCAR (list); | |
5105 | int xlfd; | |
5106 | ||
5107 | if (EQ (attr, QCwidth)) | |
5108 | xlfd = XLFD_SWIDTH; | |
5109 | else if (EQ (attr, QCheight)) | |
5110 | xlfd = XLFD_POINT_SIZE; | |
5111 | else if (EQ (attr, QCweight)) | |
5112 | xlfd = XLFD_WEIGHT; | |
5113 | else if (EQ (attr, QCslant)) | |
5114 | xlfd = XLFD_SLANT; | |
5115 | else | |
5116 | break; | |
5117 | ||
5118 | if (indices[i] != 0) | |
5119 | break; | |
5120 | indices[i] = xlfd; | |
5121 | } | |
5122 | ||
5123 | if (!NILP (list) | |
5124 | || i != DIM (indices) | |
5125 | || indices[0] == 0 | |
5126 | || indices[1] == 0 | |
5127 | || indices[2] == 0 | |
5128 | || indices[3] == 0) | |
5129 | signal_error ("Invalid font sort order", order); | |
5130 | ||
5131 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5132 | { | |
5133 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5134 | free_all_realized_faces (Qnil); | |
5135 | } | |
5136 | ||
5137 | return Qnil; | |
5138 | } | |
5139 | ||
5140 | ||
5141 | DEFUN ("internal-set-alternative-font-family-alist", | |
5142 | Finternal_set_alternative_font_family_alist, | |
5143 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
5144 | "Define alternative font families to try in face font selection.\n\ | |
5145 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
5146 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
5147 | be found. Value is ALIST.") | |
5148 | (alist) | |
5149 | Lisp_Object alist; | |
5150 | { | |
5151 | CHECK_LIST (alist, 0); | |
5152 | Vface_alternative_font_family_alist = alist; | |
5153 | free_all_realized_faces (Qnil); | |
5154 | return alist; | |
5155 | } | |
5156 | ||
5157 | ||
c3cee013 | 5158 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5159 | |
82641697 GM |
5160 | /* Value is non-zero if FONT is the name of a scalable font. The |
5161 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5162 | are zero for scalable fonts. Intlfonts contain at least one | |
5163 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5164 | just test average width. */ | |
5165 | ||
5166 | static int | |
5167 | font_scalable_p (font) | |
5168 | struct font_name *font; | |
5169 | { | |
5170 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
5171 | return (*s == '0' && *(s + 1) == '\0') |
5172 | #ifdef WINDOWSNT | |
5173 | /* Windows implementation of XLFD is slightly broken for backward | |
5174 | compatibility with previous broken versions, so test for | |
5175 | wildcards as well as 0. */ | |
5176 | || *s == '*' | |
5177 | #endif | |
5178 | ; | |
82641697 GM |
5179 | } |
5180 | ||
5181 | ||
5182 | /* Value is non-zero if FONT1 is a better match for font attributes | |
5183 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5184 | font sort order. COMPARE_PT_P zero means don't compare point | |
5185 | sizes. */ | |
5186 | ||
5187 | static int | |
5188 | better_font_p (values, font1, font2, compare_pt_p) | |
5189 | int *values; | |
5190 | struct font_name *font1, *font2; | |
5191 | int compare_pt_p; | |
5192 | { | |
5193 | int i; | |
5194 | ||
5195 | for (i = 0; i < 4; ++i) | |
5196 | { | |
5197 | int xlfd_idx = font_sort_order[i]; | |
5198 | ||
5199 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5200 | { | |
5201 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5202 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
5203 | ||
5204 | if (delta1 > delta2) | |
5205 | return 0; | |
5206 | else if (delta1 < delta2) | |
5207 | return 1; | |
5208 | else | |
5209 | { | |
5210 | /* The difference may be equal because, e.g., the face | |
5211 | specifies `italic' but we have only `regular' and | |
5212 | `oblique'. Prefer `oblique' in this case. */ | |
5213 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5214 | && font1->numeric[xlfd_idx] > values[i] | |
5215 | && font2->numeric[xlfd_idx] < values[i]) | |
5216 | return 1; | |
5217 | } | |
5218 | } | |
5219 | } | |
5220 | ||
5221 | return 0; | |
5222 | } | |
5223 | ||
5224 | ||
5225 | #if SCALABLE_FONTS | |
5226 | ||
5227 | /* Value is non-zero if FONT is an exact match for face attributes in | |
5228 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
5229 | sort order. */ | |
5230 | ||
5231 | static int | |
5232 | exact_face_match_p (specified, font) | |
5233 | int *specified; | |
5234 | struct font_name *font; | |
5235 | { | |
5236 | int i; | |
5237 | ||
5238 | for (i = 0; i < 4; ++i) | |
5239 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
5240 | break; | |
5241 | ||
5242 | return i == 4; | |
5243 | } | |
5244 | ||
5245 | ||
5246 | /* Value is the name of a scaled font, generated from scalable font | |
5247 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5248 | Value is allocated from heap. */ | |
5249 | ||
5250 | static char * | |
5251 | build_scalable_font_name (f, font, specified_pt) | |
5252 | struct frame *f; | |
5253 | struct font_name *font; | |
5254 | int specified_pt; | |
5255 | { | |
5256 | char point_size[20], pixel_size[20]; | |
5257 | int pixel_value; | |
5258 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5259 | double pt; | |
5260 | ||
5261 | /* If scalable font is for a specific resolution, compute | |
5262 | the point size we must specify from the resolution of | |
5263 | the display and the specified resolution of the font. */ | |
5264 | if (font->numeric[XLFD_RESY] != 0) | |
5265 | { | |
5266 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
5267 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
5268 | } | |
5269 | else | |
5270 | { | |
5271 | pt = specified_pt; | |
5272 | pixel_value = resy / 720.0 * pt; | |
5273 | } | |
5274 | ||
5275 | /* Set point size of the font. */ | |
5276 | sprintf (point_size, "%d", (int) pt); | |
5277 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5278 | font->numeric[XLFD_POINT_SIZE] = pt; | |
5279 | ||
5280 | /* Set pixel size. */ | |
5281 | sprintf (pixel_size, "%d", pixel_value); | |
5282 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5283 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
5284 | ||
5285 | /* If font doesn't specify its resolution, use the | |
5286 | resolution of the display. */ | |
5287 | if (font->numeric[XLFD_RESY] == 0) | |
5288 | { | |
5289 | char buffer[20]; | |
5290 | sprintf (buffer, "%d", (int) resy); | |
5291 | font->fields[XLFD_RESY] = buffer; | |
5292 | font->numeric[XLFD_RESY] = resy; | |
5293 | } | |
5294 | ||
5295 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) | |
5296 | { | |
5297 | char buffer[20]; | |
5298 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5299 | sprintf (buffer, "%d", resx); | |
5300 | font->fields[XLFD_RESX] = buffer; | |
5301 | font->numeric[XLFD_RESX] = resx; | |
5302 | } | |
5303 | ||
5304 | return build_font_name (font); | |
5305 | } | |
5306 | ||
5307 | ||
5308 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5309 | can't run a Lisp function here since this function may be called | |
5310 | with input blocked. */ | |
5311 | ||
5312 | static int | |
5313 | may_use_scalable_font_p (font, name) | |
5314 | struct font_name *font; | |
5315 | char *name; | |
5316 | { | |
5317 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5318 | return 1; | |
5319 | else if (CONSP (Vscalable_fonts_allowed)) | |
5320 | { | |
5321 | Lisp_Object tail, regexp; | |
5322 | ||
5323 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) | |
5324 | { | |
5325 | regexp = XCAR (tail); | |
5326 | if (STRINGP (regexp) | |
5327 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
5328 | return 1; | |
5329 | } | |
5330 | } | |
5331 | ||
5332 | return 0; | |
5333 | } | |
5334 | ||
5335 | #endif /* SCALABLE_FONTS != 0 */ | |
5336 | ||
5337 | ||
5338 | /* Return the name of the best matching font for face attributes | |
5339 | ATTRS in the array of font_name structures FONTS which contains | |
5340 | NFONTS elements. Value is a font name which is allocated from | |
5341 | the heap. FONTS is freed by this function. */ | |
5342 | ||
5343 | static char * | |
5344 | best_matching_font (f, attrs, fonts, nfonts) | |
5345 | struct frame *f; | |
5346 | Lisp_Object *attrs; | |
5347 | struct font_name *fonts; | |
5348 | int nfonts; | |
5349 | { | |
5350 | char *font_name; | |
5351 | struct font_name *best; | |
5352 | int i, pt; | |
5353 | int specified[4]; | |
5354 | int exact_p; | |
5355 | ||
5356 | if (nfonts == 0) | |
5357 | return NULL; | |
5358 | ||
5359 | /* Make specified font attributes available in `specified', | |
5360 | indexed by sort order. */ | |
5361 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5362 | { | |
5363 | int xlfd_idx = font_sort_order[i]; | |
5364 | ||
5365 | if (xlfd_idx == XLFD_SWIDTH) | |
5366 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5367 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5368 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5369 | else if (xlfd_idx == XLFD_WEIGHT) | |
5370 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5371 | else if (xlfd_idx == XLFD_SLANT) | |
5372 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5373 | else | |
5374 | abort (); | |
5375 | } | |
5376 | ||
5377 | #if SCALABLE_FONTS | |
5378 | ||
5379 | /* Set to 1 */ | |
5380 | exact_p = 0; | |
5381 | ||
5382 | /* Start with the first non-scalable font in the list. */ | |
5383 | for (i = 0; i < nfonts; ++i) | |
5384 | if (!font_scalable_p (fonts + i)) | |
5385 | break; | |
5386 | ||
5387 | /* Find the best match among the non-scalable fonts. */ | |
5388 | if (i < nfonts) | |
5389 | { | |
5390 | best = fonts + i; | |
5391 | ||
5392 | for (i = 1; i < nfonts; ++i) | |
5393 | if (!font_scalable_p (fonts + i) | |
5394 | && better_font_p (specified, fonts + i, best, 1)) | |
5395 | { | |
5396 | best = fonts + i; | |
5397 | ||
5398 | exact_p = exact_face_match_p (specified, best); | |
5399 | if (exact_p) | |
5400 | break; | |
5401 | } | |
5402 | ||
5403 | } | |
5404 | else | |
5405 | best = NULL; | |
5406 | ||
5407 | /* Unless we found an exact match among non-scalable fonts, see if | |
5408 | we can find a better match among scalable fonts. */ | |
5409 | if (!exact_p) | |
5410 | { | |
5411 | /* A scalable font is better if | |
5412 | ||
5413 | 1. its weight, slant, swidth attributes are better, or. | |
5414 | ||
5415 | 2. the best non-scalable font doesn't have the required | |
5416 | point size, and the scalable fonts weight, slant, swidth | |
5417 | isn't worse. */ | |
5418 | ||
5419 | int non_scalable_has_exact_height_p; | |
5420 | ||
5421 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5422 | non_scalable_has_exact_height_p = 1; | |
5423 | else | |
5424 | non_scalable_has_exact_height_p = 0; | |
5425 | ||
5426 | for (i = 0; i < nfonts; ++i) | |
5427 | if (font_scalable_p (fonts + i)) | |
5428 | { | |
5429 | if (best == NULL | |
5430 | || better_font_p (specified, fonts + i, best, 0) | |
5431 | || (!non_scalable_has_exact_height_p | |
5432 | && !better_font_p (specified, best, fonts + i, 0))) | |
5433 | best = fonts + i; | |
5434 | } | |
5435 | } | |
5436 | ||
5437 | if (font_scalable_p (best)) | |
5438 | font_name = build_scalable_font_name (f, best, pt); | |
5439 | else | |
5440 | font_name = build_font_name (best); | |
5441 | ||
5442 | #else /* !SCALABLE_FONTS */ | |
5443 | ||
5444 | /* Find the best non-scalable font. */ | |
5445 | best = fonts; | |
5446 | ||
5447 | for (i = 1; i < nfonts; ++i) | |
5448 | { | |
5449 | xassert (!font_scalable_p (fonts + i)); | |
5450 | if (better_font_p (specified, fonts + i, best, 1)) | |
5451 | best = fonts + i; | |
5452 | } | |
5453 | ||
5454 | font_name = build_font_name (best); | |
5455 | ||
5456 | #endif /* !SCALABLE_FONTS */ | |
5457 | ||
5458 | /* Free font_name structures. */ | |
5459 | free_font_names (fonts, nfonts); | |
5460 | ||
5461 | return font_name; | |
5462 | } | |
5463 | ||
5464 | ||
5465 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
5466 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
5467 | of font_name structures for the fonts matched. Value is the number | |
5468 | of fonts found. */ | |
5469 | ||
5470 | static int | |
5471 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
5472 | struct frame *f; | |
5473 | Lisp_Object *attrs; | |
39506348 | 5474 | Lisp_Object pattern, family, registry; |
82641697 GM |
5475 | struct font_name **fonts; |
5476 | { | |
5477 | int nfonts; | |
5478 | ||
39506348 KH |
5479 | if (NILP (family) && STRINGP (attrs[LFACE_FAMILY_INDEX])) |
5480 | family = attrs[LFACE_FAMILY_INDEX]; | |
82641697 GM |
5481 | |
5482 | nfonts = font_list (f, pattern, family, registry, fonts); | |
5483 | ||
39506348 | 5484 | if (nfonts == 0 && !NILP (family)) |
82641697 GM |
5485 | { |
5486 | Lisp_Object alter; | |
5487 | ||
5488 | /* Try alternative font families from | |
5489 | Vface_alternative_font_family_alist. */ | |
39506348 | 5490 | alter = Fassoc (family, Vface_alternative_font_family_alist); |
82641697 GM |
5491 | if (CONSP (alter)) |
5492 | for (alter = XCDR (alter); | |
5493 | CONSP (alter) && nfonts == 0; | |
5494 | alter = XCDR (alter)) | |
5495 | { | |
5496 | if (STRINGP (XCAR (alter))) | |
39506348 | 5497 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); |
82641697 GM |
5498 | } |
5499 | ||
5500 | /* Try font family of the default face or "fixed". */ | |
5501 | if (nfonts == 0) | |
5502 | { | |
5503 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5504 | if (dflt) | |
39506348 | 5505 | family = dflt->lface[LFACE_FAMILY_INDEX]; |
82641697 | 5506 | else |
39506348 KH |
5507 | family = build_string ("fixed"); |
5508 | nfonts = font_list (f, Qnil, family, registry, fonts); | |
82641697 GM |
5509 | } |
5510 | ||
5511 | /* Try any family with the given registry. */ | |
5512 | if (nfonts == 0) | |
39506348 | 5513 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); |
82641697 GM |
5514 | } |
5515 | ||
5516 | return nfonts; | |
5517 | } | |
5518 | ||
82641697 | 5519 | |
39506348 KH |
5520 | /* Return the fontset id of the base fontset name or alias name given |
5521 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
5522 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
5523 | |
5524 | static int | |
39506348 | 5525 | face_fontset (attrs) |
82641697 GM |
5526 | Lisp_Object *attrs; |
5527 | { | |
39506348 | 5528 | Lisp_Object name; |
82641697 GM |
5529 | int fontset; |
5530 | ||
39506348 KH |
5531 | name = attrs[LFACE_FONT_INDEX]; |
5532 | if (!STRINGP (name)) | |
5533 | return -1; | |
5534 | return fs_query_fontset (name, 0); | |
82641697 GM |
5535 | } |
5536 | ||
5537 | ||
39506348 KH |
5538 | /* Choose a name of font to use on frame F to display character C with |
5539 | Lisp face attributes specified by ATTRS. The font name is | |
5540 | determined by the font-related attributes in ATTRS and the name | |
5541 | pattern for C in FONTSET. Value is the font name which is | |
5542 | allocated from the heap and must be freed by the caller, or NULL if | |
5543 | we can get no information about the font name of C. It is assured | |
5544 | that we always get some information for a single byte | |
5545 | character. */ | |
82641697 GM |
5546 | |
5547 | static char * | |
39506348 | 5548 | choose_face_font (f, attrs, fontset, c) |
82641697 GM |
5549 | struct frame *f; |
5550 | Lisp_Object *attrs; | |
39506348 | 5551 | int fontset, c; |
82641697 | 5552 | { |
39506348 | 5553 | Lisp_Object pattern; |
82641697 | 5554 | char *font_name = NULL; |
82641697 GM |
5555 | struct font_name *fonts; |
5556 | int nfonts; | |
5557 | ||
39506348 KH |
5558 | /* Get (foundry and) family name and registry (and encoding) name of |
5559 | a font for C. */ | |
5560 | pattern = fontset_font_pattern (f, fontset, c); | |
5561 | if (NILP (pattern)) | |
5562 | { | |
5563 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
5564 | return NULL; | |
5565 | } | |
5566 | /* If what we got is a name pattern, return it. */ | |
5567 | if (STRINGP (pattern)) | |
5568 | return xstrdup (XSTRING (pattern)->data); | |
82641697 | 5569 | |
39506348 KH |
5570 | /* Family name may be specified both in ATTRS and car part of |
5571 | PATTERN. The former has higher priority if C is a single byte | |
5572 | character. */ | |
5573 | if (STRINGP (attrs[LFACE_FAMILY_INDEX]) | |
5574 | && SINGLE_BYTE_CHAR_P (c)) | |
5575 | XCAR (pattern) = Qnil; | |
82641697 GM |
5576 | |
5577 | /* Get a list of fonts matching that pattern and choose the | |
5578 | best match for the specified face attributes from it. */ | |
39506348 KH |
5579 | nfonts = try_font_list (f, attrs, Qnil, XCAR (pattern), XCDR (pattern), |
5580 | &fonts); | |
82641697 GM |
5581 | font_name = best_matching_font (f, attrs, fonts, nfonts); |
5582 | return font_name; | |
5583 | } | |
5584 | ||
c3cee013 | 5585 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5586 | |
5587 | ||
5588 | \f | |
5589 | /*********************************************************************** | |
5590 | Face Realization | |
5591 | ***********************************************************************/ | |
5592 | ||
5593 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5594 | of F don't contain enough information needed to realize the default | |
5595 | face. */ | |
5596 | ||
5597 | static int | |
5598 | realize_basic_faces (f) | |
5599 | struct frame *f; | |
5600 | { | |
5601 | int success_p = 0; | |
5602 | ||
5603 | if (realize_default_face (f)) | |
5604 | { | |
92610620 | 5605 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 5606 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
8bd201d6 | 5607 | realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); |
045dee35 | 5608 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5609 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5610 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5611 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5612 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 5613 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
82641697 GM |
5614 | success_p = 1; |
5615 | } | |
5616 | ||
5617 | return success_p; | |
5618 | } | |
5619 | ||
5620 | ||
5621 | /* Realize the default face on frame F. If the face is not fully | |
5622 | specified, make it fully-specified. Attributes of the default face | |
5623 | that are not explicitly specified are taken from frame parameters. */ | |
5624 | ||
5625 | static int | |
5626 | realize_default_face (f) | |
5627 | struct frame *f; | |
5628 | { | |
5629 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5630 | Lisp_Object lface; | |
5631 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
5632 | Lisp_Object frame_font; |
5633 | struct face *face; | |
5634 | int fontset; | |
5635 | ||
5636 | /* If the `default' face is not yet known, create it. */ | |
5637 | lface = lface_from_face_name (f, Qdefault, 0); | |
5638 | if (NILP (lface)) | |
5639 | { | |
5640 | Lisp_Object frame; | |
5641 | XSETFRAME (frame, f); | |
5642 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5643 | } | |
5644 | ||
c3cee013 JR |
5645 | #ifdef HAVE_WINDOW_SYSTEM |
5646 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
5647 | { |
5648 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5649 | frame_font = Fassq (Qfont, f->param_alist); | |
5650 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5651 | frame_font = XCDR (frame_font); | |
39506348 | 5652 | set_lface_from_font_name (f, lface, frame_font, 0, 1); |
82641697 | 5653 | } |
c3cee013 | 5654 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 5655 | |
44747bd0 | 5656 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5657 | { |
5658 | LFACE_FAMILY (lface) = build_string ("default"); | |
5659 | LFACE_SWIDTH (lface) = Qnormal; | |
5660 | LFACE_HEIGHT (lface) = make_number (1); | |
5661 | LFACE_WEIGHT (lface) = Qnormal; | |
5662 | LFACE_SLANT (lface) = Qnormal; | |
5663 | } | |
5664 | ||
5665 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) | |
5666 | LFACE_UNDERLINE (lface) = Qnil; | |
5667 | ||
5668 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) | |
5669 | LFACE_OVERLINE (lface) = Qnil; | |
5670 | ||
5671 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) | |
5672 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
5673 | ||
5674 | if (UNSPECIFIEDP (LFACE_BOX (lface))) | |
5675 | LFACE_BOX (lface) = Qnil; | |
5676 | ||
5677 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) | |
5678 | LFACE_INVERSE (lface) = Qnil; | |
5679 | ||
5680 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
5681 | { | |
5682 | /* This function is called so early that colors are not yet | |
5683 | set in the frame parameter list. */ | |
5684 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
5685 | ||
5686 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5687 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 5688 | else if (FRAME_WINDOW_P (f)) |
82641697 | 5689 | return 0; |
f9d2fdc4 | 5690 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5691 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 5692 | else |
82641697 GM |
5693 | abort (); |
5694 | } | |
5695 | ||
5696 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
5697 | { | |
5698 | /* This function is called so early that colors are not yet | |
5699 | set in the frame parameter list. */ | |
5700 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5701 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5702 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 5703 | else if (FRAME_WINDOW_P (f)) |
82641697 | 5704 | return 0; |
f9d2fdc4 | 5705 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5706 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 5707 | else |
82641697 GM |
5708 | abort (); |
5709 | } | |
5710 | ||
5711 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) | |
5712 | LFACE_STIPPLE (lface) = Qnil; | |
5713 | ||
5714 | /* Realize the face; it must be fully-specified now. */ | |
5715 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
5716 | check_lface (lface); | |
5717 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 5718 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
5719 | return 1; |
5720 | } | |
5721 | ||
5722 | ||
5723 | /* Realize basic faces other than the default face in face cache C. | |
5724 | SYMBOL is the face name, ID is the face id the realized face must | |
5725 | have. The default face must have been realized already. */ | |
5726 | ||
5727 | static void | |
5728 | realize_named_face (f, symbol, id) | |
5729 | struct frame *f; | |
5730 | Lisp_Object symbol; | |
5731 | int id; | |
5732 | { | |
5733 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5734 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
5735 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5736 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5737 | struct face *new_face; | |
5738 | ||
5739 | /* The default face must exist and be fully specified. */ | |
5740 | get_lface_attributes (f, Qdefault, attrs, 1); | |
5741 | check_lface_attrs (attrs); | |
5742 | xassert (lface_fully_specified_p (attrs)); | |
5743 | ||
5744 | /* If SYMBOL isn't know as a face, create it. */ | |
5745 | if (NILP (lface)) | |
5746 | { | |
5747 | Lisp_Object frame; | |
5748 | XSETFRAME (frame, f); | |
5749 | lface = Finternal_make_lisp_face (symbol, frame); | |
5750 | } | |
5751 | ||
5752 | /* Merge SYMBOL's face with the default face. */ | |
5753 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5754 | merge_face_vectors (symbol_attrs, attrs); | |
5755 | ||
5756 | /* Realize the face. */ | |
39506348 | 5757 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
5758 | } |
5759 | ||
5760 | ||
5761 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 KH |
5762 | cache CACHE for character C. If C is a multibyte character, |
5763 | BASE_FACE is a face for ASCII characters that has the same | |
5764 | attributes. Otherwise, BASE_FACE is ignored. If FORMER_FACE_ID is | |
5765 | non-negative, it is an ID of face to remove before caching the new | |
5766 | face. Value is a pointer to the newly created realized face. */ | |
82641697 GM |
5767 | |
5768 | static struct face * | |
39506348 KH |
5769 | realize_face (cache, attrs, c, base_face, former_face_id) |
5770 | struct face_cache *cache; | |
82641697 | 5771 | Lisp_Object *attrs; |
39506348 KH |
5772 | int c; |
5773 | struct face *base_face; | |
5774 | int former_face_id; | |
82641697 GM |
5775 | { |
5776 | struct face *face; | |
5777 | ||
5778 | /* LFACE must be fully specified. */ | |
39506348 | 5779 | xassert (cache != NULL); |
82641697 GM |
5780 | check_lface_attrs (attrs); |
5781 | ||
39506348 KH |
5782 | if (former_face_id >= 0 && cache->used > former_face_id) |
5783 | { | |
5784 | /* Remove the former face. */ | |
5785 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
5786 | uncache_face (cache, former_face); | |
5787 | free_realized_face (cache->f, former_face); | |
5788 | } | |
5789 | ||
5790 | if (FRAME_WINDOW_P (cache->f)) | |
5791 | face = realize_x_face (cache, attrs, c, base_face); | |
5792 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) | |
5793 | face = realize_tty_face (cache, attrs, c); | |
82641697 GM |
5794 | else |
5795 | abort (); | |
5796 | ||
39506348 KH |
5797 | /* Insert the new face. */ |
5798 | cache_face (cache, face, lface_hash (attrs)); | |
5799 | #ifdef HAVE_WINDOW_SYSTEM | |
5800 | if (FRAME_X_P (cache->f) && face->font == NULL) | |
5801 | load_face_font (cache->f, face, c); | |
5802 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
5803 | return face; |
5804 | } | |
5805 | ||
5806 | ||
5807 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 KH |
5808 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
5809 | a multibyte character, BASE_FACE is a face for ASCII characters | |
5810 | that has the same attributes. Otherwise, BASE_FACE is ignored. If | |
5811 | the new face doesn't share font with the default face, a fontname | |
5812 | is allocated from the heap and set in `font_name' of the new face, | |
5813 | but it is not yet loaded here. Value is a pointer to the newly | |
82641697 GM |
5814 | created realized face. */ |
5815 | ||
5816 | static struct face * | |
39506348 KH |
5817 | realize_x_face (cache, attrs, c, base_face) |
5818 | struct face_cache *cache; | |
82641697 | 5819 | Lisp_Object *attrs; |
39506348 KH |
5820 | int c; |
5821 | struct face *base_face; | |
82641697 | 5822 | { |
c3cee013 | 5823 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5824 | struct face *face, *default_face; |
78d2079c | 5825 | struct frame *f; |
82641697 | 5826 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 5827 | |
39506348 KH |
5828 | xassert (FRAME_WINDOW_P (cache->f)); |
5829 | xassert (SINGLE_BYTE_CHAR_P (c) | |
5830 | || (base_face && base_face->ascii_face == base_face)); | |
82641697 GM |
5831 | |
5832 | /* Allocate a new realized face. */ | |
39506348 KH |
5833 | face = make_realized_face (attrs); |
5834 | ||
5835 | f = cache->f; | |
5836 | ||
5837 | /* If C is a multibyte character, we share all face attirbutes with | |
5838 | BASE_FACE including the realized fontset. But, we must load a | |
5839 | different font. */ | |
5840 | if (!SINGLE_BYTE_CHAR_P (c)) | |
5841 | { | |
5842 | bcopy (base_face, face, sizeof *face); | |
5843 | face->gc = 0; | |
5844 | face->font = NULL; /* to force realize_face to load font */ | |
5845 | return face; | |
5846 | } | |
5847 | ||
5848 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
5849 | |
5850 | /* Determine the font to use. Most of the time, the font will be | |
5851 | the same as the font of the default face, so try that first. */ | |
5852 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5853 | if (default_face | |
39506348 | 5854 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
5855 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
5856 | { | |
5857 | face->font = default_face->font; | |
5858 | face->fontset = default_face->fontset; | |
5859 | face->font_info_id = default_face->font_info_id; | |
5860 | face->font_name = default_face->font_name; | |
39506348 | 5861 | face->ascii_face = face; |
82641697 | 5862 | |
39506348 KH |
5863 | /* But, as we can't share the fontset, make a new realized |
5864 | fontset that has the same base fontset as of the default | |
5865 | face. */ | |
5866 | face->fontset | |
5867 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
5868 | } |
5869 | else | |
5870 | { | |
39506348 KH |
5871 | /* If the face attribute ATTRS specifies a fontset, use it as |
5872 | the base of a new realized fontset. Otherwise, use the | |
5873 | default fontset as the base. The base determines registry | |
5874 | and encoding of a font. It may also determine foundry and | |
5875 | family. The other fields of font name pattern are | |
5876 | constructed from ATTRS. */ | |
5877 | face->fontset | |
5878 | = make_fontset_for_ascii_face (f, face_fontset (attrs)); | |
5879 | face->font = NULL; /* to force realize_face to load font */ | |
82641697 GM |
5880 | } |
5881 | ||
5882 | /* Load colors, and set remaining attributes. */ | |
5883 | ||
5884 | load_face_colors (f, face, attrs); | |
660ed669 | 5885 | |
82641697 GM |
5886 | /* Set up box. */ |
5887 | box = attrs[LFACE_BOX_INDEX]; | |
5888 | if (STRINGP (box)) | |
cb637678 | 5889 | { |
82641697 GM |
5890 | /* A simple box of line width 1 drawn in color given by |
5891 | the string. */ | |
5892 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
5893 | LFACE_BOX_INDEX); | |
5894 | face->box = FACE_SIMPLE_BOX; | |
5895 | face->box_line_width = 1; | |
cb637678 | 5896 | } |
82641697 | 5897 | else if (INTEGERP (box)) |
42120bc7 | 5898 | { |
82641697 GM |
5899 | /* Simple box of specified line width in foreground color of the |
5900 | face. */ | |
5901 | xassert (XINT (box) > 0); | |
5902 | face->box = FACE_SIMPLE_BOX; | |
5903 | face->box_line_width = XFASTINT (box); | |
5904 | face->box_color = face->foreground; | |
5905 | face->box_color_defaulted_p = 1; | |
5906 | } | |
5907 | else if (CONSP (box)) | |
5908 | { | |
5909 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
5910 | being one of `raised' or `sunken'. */ | |
5911 | face->box = FACE_SIMPLE_BOX; | |
5912 | face->box_color = face->foreground; | |
5913 | face->box_color_defaulted_p = 1; | |
5914 | face->box_line_width = 1; | |
5915 | ||
5916 | while (CONSP (box)) | |
42120bc7 | 5917 | { |
82641697 GM |
5918 | Lisp_Object keyword, value; |
5919 | ||
5920 | keyword = XCAR (box); | |
5921 | box = XCDR (box); | |
5922 | ||
5923 | if (!CONSP (box)) | |
5924 | break; | |
5925 | value = XCAR (box); | |
5926 | box = XCDR (box); | |
5927 | ||
5928 | if (EQ (keyword, QCline_width)) | |
5929 | { | |
5930 | if (INTEGERP (value) && XINT (value) > 0) | |
5931 | face->box_line_width = XFASTINT (value); | |
5932 | } | |
5933 | else if (EQ (keyword, QCcolor)) | |
5934 | { | |
5935 | if (STRINGP (value)) | |
5936 | { | |
5937 | face->box_color = load_color (f, face, value, | |
5938 | LFACE_BOX_INDEX); | |
5939 | face->use_box_color_for_shadows_p = 1; | |
5940 | } | |
5941 | } | |
5942 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 5943 | { |
82641697 GM |
5944 | if (EQ (value, Qreleased_button)) |
5945 | face->box = FACE_RAISED_BOX; | |
5946 | else if (EQ (value, Qpressed_button)) | |
5947 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 5948 | } |
42120bc7 RS |
5949 | } |
5950 | } | |
195f798e | 5951 | |
82641697 GM |
5952 | /* Text underline, overline, strike-through. */ |
5953 | ||
5954 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) | |
5955 | { | |
5956 | /* Use default color (same as foreground color). */ | |
5957 | face->underline_p = 1; | |
5958 | face->underline_defaulted_p = 1; | |
5959 | face->underline_color = 0; | |
5960 | } | |
5961 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 5962 | { |
82641697 GM |
5963 | /* Use specified color. */ |
5964 | face->underline_p = 1; | |
5965 | face->underline_defaulted_p = 0; | |
5966 | face->underline_color | |
5967 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
5968 | LFACE_UNDERLINE_INDEX); | |
195f798e | 5969 | } |
82641697 | 5970 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 5971 | { |
82641697 GM |
5972 | face->underline_p = 0; |
5973 | face->underline_defaulted_p = 0; | |
5974 | face->underline_color = 0; | |
7b00de84 JB |
5975 | } |
5976 | ||
82641697 GM |
5977 | overline = attrs[LFACE_OVERLINE_INDEX]; |
5978 | if (STRINGP (overline)) | |
cb637678 | 5979 | { |
82641697 GM |
5980 | face->overline_color |
5981 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
5982 | LFACE_OVERLINE_INDEX); | |
5983 | face->overline_p = 1; | |
cb637678 | 5984 | } |
82641697 | 5985 | else if (EQ (overline, Qt)) |
cb637678 | 5986 | { |
82641697 GM |
5987 | face->overline_color = face->foreground; |
5988 | face->overline_color_defaulted_p = 1; | |
5989 | face->overline_p = 1; | |
cb637678 JB |
5990 | } |
5991 | ||
82641697 GM |
5992 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
5993 | if (STRINGP (strike_through)) | |
5994 | { | |
5995 | face->strike_through_color | |
5996 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
5997 | LFACE_STRIKE_THROUGH_INDEX); | |
5998 | face->strike_through_p = 1; | |
5999 | } | |
6000 | else if (EQ (strike_through, Qt)) | |
6001 | { | |
6002 | face->strike_through_color = face->foreground; | |
6003 | face->strike_through_color_defaulted_p = 1; | |
6004 | face->strike_through_p = 1; | |
6005 | } | |
867dd159 | 6006 | |
82641697 GM |
6007 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6008 | if (!NILP (stipple)) | |
6009 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6010 | |
39506348 | 6011 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
82641697 | 6012 | return face; |
c3cee013 | 6013 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 JB |
6014 | } |
6015 | ||
729425b1 | 6016 | |
82641697 | 6017 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
6018 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
6019 | pointer to the newly created realized face. */ | |
a8517066 | 6020 | |
82641697 | 6021 | static struct face * |
39506348 KH |
6022 | realize_tty_face (cache, attrs, c) |
6023 | struct face_cache *cache; | |
82641697 | 6024 | Lisp_Object *attrs; |
39506348 | 6025 | int c; |
82641697 GM |
6026 | { |
6027 | struct face *face; | |
6028 | int weight, slant; | |
6029 | Lisp_Object color; | |
a61c12d5 EZ |
6030 | Lisp_Object tty_defined_color_alist = |
6031 | Fsymbol_value (intern ("tty-defined-color-alist")); | |
6032 | Lisp_Object tty_color_alist = intern ("tty-color-alist"); | |
6033 | Lisp_Object frame; | |
2d764c78 | 6034 | int face_colors_defaulted = 0; |
729425b1 | 6035 | |
82641697 | 6036 | /* Frame must be a termcap frame. */ |
39506348 | 6037 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
82641697 GM |
6038 | |
6039 | /* Allocate a new realized face. */ | |
39506348 KH |
6040 | face = make_realized_face (attrs); |
6041 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; | |
82641697 GM |
6042 | |
6043 | /* Map face attributes to TTY appearances. We map slant to | |
6044 | dimmed text because we want italic text to appear differently | |
6045 | and because dimmed text is probably used infrequently. */ | |
6046 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6047 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6048 | ||
6049 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6050 | face->tty_bold_p = 1; | |
6051 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6052 | face->tty_dim_p = 1; | |
6053 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6054 | face->tty_underline_p = 1; | |
6055 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6056 | face->tty_reverse_p = 1; | |
6057 | ||
6058 | /* Map color names to color indices. */ | |
f9d2fdc4 EZ |
6059 | face->foreground = FACE_TTY_DEFAULT_FG_COLOR; |
6060 | face->background = FACE_TTY_DEFAULT_BG_COLOR; | |
82641697 | 6061 | |
39506348 | 6062 | XSETFRAME (frame, cache->f); |
82641697 | 6063 | color = attrs[LFACE_FOREGROUND_INDEX]; |
2d764c78 EZ |
6064 | if (STRINGP (color) |
6065 | && XSTRING (color)->size | |
a61c12d5 EZ |
6066 | && !NILP (tty_defined_color_alist) |
6067 | && (color = Fassoc (color, call1 (tty_color_alist, frame)), | |
82641697 | 6068 | CONSP (color))) |
a61c12d5 | 6069 | /* Associations in tty-defined-color-alist are of the form |
2d764c78 EZ |
6070 | (NAME INDEX R G B). We need the INDEX part. */ |
6071 | face->foreground = XINT (XCAR (XCDR (color))); | |
82641697 | 6072 | |
f9d2fdc4 | 6073 | if (face->foreground == FACE_TTY_DEFAULT_FG_COLOR |
2d764c78 | 6074 | && STRINGP (attrs[LFACE_FOREGROUND_INDEX])) |
1697ca38 | 6075 | { |
39506348 | 6076 | face->foreground = load_color (cache->f, face, |
1697ca38 EZ |
6077 | attrs[LFACE_FOREGROUND_INDEX], |
6078 | LFACE_FOREGROUND_INDEX); | |
c3cee013 JR |
6079 | |
6080 | #if defined (MSDOS) || defined (WINDOWSNT) | |
1697ca38 EZ |
6081 | /* If the foreground of the default face is the default color, |
6082 | use the foreground color defined by the frame. */ | |
c3cee013 | 6083 | #ifdef MSDOS |
39506348 | 6084 | if (FRAME_MSDOS_P (cache->f)) |
1697ca38 | 6085 | { |
c3cee013 JR |
6086 | #endif /* MSDOS */ |
6087 | ||
f9d2fdc4 EZ |
6088 | if (face->foreground == FACE_TTY_DEFAULT_FG_COLOR |
6089 | || face->foreground == FACE_TTY_DEFAULT_COLOR) | |
6090 | { | |
39506348 | 6091 | face->foreground = FRAME_FOREGROUND_PIXEL (cache->f); |
f9d2fdc4 | 6092 | attrs[LFACE_FOREGROUND_INDEX] = |
39506348 | 6093 | tty_color_name (cache->f, face->foreground); |
f9d2fdc4 EZ |
6094 | face_colors_defaulted = 1; |
6095 | } | |
6096 | else if (face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
6097 | { | |
39506348 | 6098 | face->foreground = FRAME_BACKGROUND_PIXEL (cache->f); |
f9d2fdc4 | 6099 | attrs[LFACE_FOREGROUND_INDEX] = |
39506348 | 6100 | tty_color_name (cache->f, face->foreground); |
f9d2fdc4 EZ |
6101 | face_colors_defaulted = 1; |
6102 | } | |
c3cee013 | 6103 | #ifdef MSDOS |
1697ca38 | 6104 | } |
44747bd0 | 6105 | #endif |
c3cee013 | 6106 | #endif /* MSDOS or WINDOWSNT */ |
2d764c78 | 6107 | } |
44747bd0 | 6108 | |
82641697 | 6109 | color = attrs[LFACE_BACKGROUND_INDEX]; |
2d764c78 EZ |
6110 | if (STRINGP (color) |
6111 | && XSTRING (color)->size | |
a61c12d5 EZ |
6112 | && !NILP (tty_defined_color_alist) |
6113 | && (color = Fassoc (color, call1 (tty_color_alist, frame)), | |
82641697 | 6114 | CONSP (color))) |
a61c12d5 | 6115 | /* Associations in tty-defined-color-alist are of the form |
2d764c78 EZ |
6116 | (NAME INDEX R G B). We need the INDEX part. */ |
6117 | face->background = XINT (XCAR (XCDR (color))); | |
729425b1 | 6118 | |
f9d2fdc4 | 6119 | if (face->background == FACE_TTY_DEFAULT_BG_COLOR |
2d764c78 | 6120 | && STRINGP (attrs[LFACE_BACKGROUND_INDEX])) |
1697ca38 | 6121 | { |
39506348 | 6122 | face->background = load_color (cache->f, face, |
1697ca38 EZ |
6123 | attrs[LFACE_BACKGROUND_INDEX], |
6124 | LFACE_BACKGROUND_INDEX); | |
c3cee013 | 6125 | #if defined (MSDOS) || defined (WINDOWSNT) |
1697ca38 EZ |
6126 | /* If the background of the default face is the default color, |
6127 | use the background color defined by the frame. */ | |
c3cee013 | 6128 | #ifdef MSDOS |
39506348 | 6129 | if (FRAME_MSDOS_P (cache->f)) |
1697ca38 | 6130 | { |
c3cee013 JR |
6131 | #endif /* MSDOS */ |
6132 | ||
f9d2fdc4 EZ |
6133 | if (face->background == FACE_TTY_DEFAULT_BG_COLOR |
6134 | || face->background == FACE_TTY_DEFAULT_COLOR) | |
6135 | { | |
39506348 | 6136 | face->background = FRAME_BACKGROUND_PIXEL (cache->f); |
f9d2fdc4 | 6137 | attrs[LFACE_BACKGROUND_INDEX] = |
39506348 | 6138 | tty_color_name (cache->f, face->background); |
f9d2fdc4 EZ |
6139 | face_colors_defaulted = 1; |
6140 | } | |
6141 | else if (face->background == FACE_TTY_DEFAULT_FG_COLOR) | |
6142 | { | |
39506348 | 6143 | face->background = FRAME_FOREGROUND_PIXEL (cache->f); |
f9d2fdc4 | 6144 | attrs[LFACE_BACKGROUND_INDEX] = |
39506348 | 6145 | tty_color_name (cache->f, face->background); |
f9d2fdc4 EZ |
6146 | face_colors_defaulted = 1; |
6147 | } | |
c3cee013 | 6148 | #ifdef MSDOS |
1697ca38 | 6149 | } |
2d764c78 | 6150 | #endif |
c3cee013 | 6151 | #endif /* MSDOS or WINDOWSNT */ |
1697ca38 | 6152 | } |
44747bd0 | 6153 | |
2d764c78 EZ |
6154 | /* Swap colors if face is inverse-video. If the colors are taken |
6155 | from the frame colors, they are already inverted, since the | |
6156 | frame-creation function calls x-handle-reverse-video. */ | |
6157 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6158 | { |
6159 | unsigned long tem = face->foreground; | |
6160 | ||
6161 | face->foreground = face->background; | |
6162 | face->background = tem; | |
6163 | } | |
44747bd0 | 6164 | |
82641697 | 6165 | return face; |
729425b1 | 6166 | } |
867dd159 | 6167 | |
82641697 | 6168 | |
82641697 GM |
6169 | \f |
6170 | /*********************************************************************** | |
6171 | Computing Faces | |
6172 | ***********************************************************************/ | |
6173 | ||
6174 | /* Return the ID of the face to use to display character CH with face | |
6175 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6176 | |
6177 | int | |
82641697 | 6178 | compute_char_face (f, ch, prop) |
2e16580f | 6179 | struct frame *f; |
82641697 GM |
6180 | int ch; |
6181 | Lisp_Object prop; | |
2e16580f | 6182 | { |
82641697 | 6183 | int face_id; |
39506348 KH |
6184 | |
6185 | if (NILP (current_buffer->enable_multibyte_characters)) | |
6186 | ch = -1; | |
82641697 GM |
6187 | |
6188 | if (NILP (prop)) | |
39506348 KH |
6189 | { |
6190 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6191 | face_id = FACE_FOR_CHAR (f, face, ch); | |
6192 | } | |
82641697 | 6193 | else |
2e16580f | 6194 | { |
82641697 GM |
6195 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6196 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6197 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6198 | merge_face_vector_with_property (f, attrs, prop); | |
39506348 | 6199 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
6200 | } |
6201 | ||
82641697 | 6202 | return face_id; |
2e16580f | 6203 | } |
bc0db68d | 6204 | |
b349f4fb | 6205 | |
82641697 GM |
6206 | /* Return the face ID associated with buffer position POS for |
6207 | displaying ASCII characters. Return in *ENDPTR the position at | |
6208 | which a different face is needed, as far as text properties and | |
6209 | overlays are concerned. W is a window displaying current_buffer. | |
6210 | ||
6211 | REGION_BEG, REGION_END delimit the region, so it can be | |
6212 | highlighted. | |
6f134486 | 6213 | |
82641697 GM |
6214 | LIMIT is a position not to scan beyond. That is to limit the time |
6215 | this function can take. | |
6216 | ||
6217 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6218 | ||
39506348 | 6219 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 6220 | |
cb637678 | 6221 | int |
82641697 GM |
6222 | face_at_buffer_position (w, pos, region_beg, region_end, |
6223 | endptr, limit, mouse) | |
f211082d | 6224 | struct window *w; |
7b7739b1 | 6225 | int pos; |
bc0db68d | 6226 | int region_beg, region_end; |
7b7739b1 | 6227 | int *endptr; |
b349f4fb | 6228 | int limit; |
6f134486 | 6229 | int mouse; |
7b7739b1 | 6230 | { |
82641697 GM |
6231 | struct frame *f = XFRAME (w->frame); |
6232 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6233 | Lisp_Object prop, position; |
82641697 | 6234 | int i, noverlays; |
7b7739b1 | 6235 | Lisp_Object *overlay_vec; |
f211082d | 6236 | Lisp_Object frame; |
f6b98e0b | 6237 | int endpos; |
82641697 GM |
6238 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6239 | Lisp_Object limit1, end; | |
6240 | struct face *default_face; | |
6241 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
6242 | |
6243 | /* W must display the current buffer. We could write this function | |
6244 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6245 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6246 | |
ac22a6c4 | 6247 | XSETFRAME (frame, f); |
82641697 | 6248 | XSETFASTINT (position, pos); |
7b7739b1 | 6249 | |
f6b98e0b | 6250 | endpos = ZV; |
bc0db68d RS |
6251 | if (pos < region_beg && region_beg < endpos) |
6252 | endpos = region_beg; | |
f6b98e0b | 6253 | |
82641697 GM |
6254 | /* Get the `face' or `mouse_face' text property at POS, and |
6255 | determine the next position at which the property changes. */ | |
6f134486 | 6256 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6257 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6258 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6259 | if (INTEGERP (end)) | |
6260 | endpos = XINT (end); | |
6f134486 | 6261 | |
82641697 | 6262 | /* Look at properties from overlays. */ |
b6d40e46 | 6263 | { |
f6b98e0b | 6264 | int next_overlay; |
9516fe94 RS |
6265 | int len; |
6266 | ||
6267 | /* First try with room for 40 overlays. */ | |
6268 | len = 40; | |
6269 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6270 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6271 | &next_overlay, NULL); |
9516fe94 | 6272 | |
82641697 GM |
6273 | /* If there are more than 40, make enough space for all, and try |
6274 | again. */ | |
9516fe94 RS |
6275 | if (noverlays > len) |
6276 | { | |
6277 | len = noverlays; | |
6278 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6279 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
82641697 | 6280 | &next_overlay, NULL); |
9516fe94 | 6281 | } |
b6d40e46 | 6282 | |
f6b98e0b JB |
6283 | if (next_overlay < endpos) |
6284 | endpos = next_overlay; | |
b6d40e46 JB |
6285 | } |
6286 | ||
6287 | *endptr = endpos; | |
7b7739b1 | 6288 | |
82641697 GM |
6289 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
6290 | ||
6291 | /* Optimize common cases where we can use the default face. */ | |
6292 | if (noverlays == 0 | |
6293 | && NILP (prop) | |
39506348 | 6294 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
6295 | return DEFAULT_FACE_ID; |
6296 | ||
6297 | /* Begin with attributes from the default face. */ | |
6298 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6299 | ||
6300 | /* Merge in attributes specified via text properties. */ | |
6301 | if (!NILP (prop)) | |
6302 | merge_face_vector_with_property (f, attrs, prop); | |
6303 | ||
6304 | /* Now merge the overlay data. */ | |
18195655 | 6305 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6306 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6307 | { |
18195655 RS |
6308 | Lisp_Object oend; |
6309 | int oendpos; | |
6310 | ||
6311 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6312 | if (!NILP (prop)) |
6313 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6314 | |
6315 | oend = OVERLAY_END (overlay_vec[i]); | |
6316 | oendpos = OVERLAY_POSITION (oend); | |
6317 | if (oendpos < endpos) | |
6318 | endpos = oendpos; | |
6319 | } | |
6320 | ||
82641697 | 6321 | /* If in the region, merge in the region face. */ |
18195655 RS |
6322 | if (pos >= region_beg && pos < region_end) |
6323 | { | |
82641697 GM |
6324 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6325 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
6326 | ||
18195655 RS |
6327 | if (region_end < endpos) |
6328 | endpos = region_end; | |
18195655 RS |
6329 | } |
6330 | ||
6331 | *endptr = endpos; | |
6332 | ||
82641697 | 6333 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6334 | or realize a new one for ASCII characters. */ |
6335 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
6336 | } |
6337 | ||
60573a90 | 6338 | |
82641697 | 6339 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 6340 | window W, for ASCII characters. |
7b7739b1 | 6341 | |
82641697 GM |
6342 | If STRING is an overlay string, it comes from position BUFPOS in |
6343 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6344 | not an overlay string. W must display the current buffer. | |
6345 | REGION_BEG and REGION_END give the start and end positions of the | |
6346 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
6347 | id of the basic face to merge with. It is usually equal to | |
045dee35 | 6348 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID |
82641697 GM |
6349 | for strings displayed in the mode or top line. |
6350 | ||
6351 | Set *ENDPTR to the next position where to check for faces in | |
6352 | STRING; -1 if the face is constant from POS to the end of the | |
6353 | string. | |
18195655 | 6354 | |
82641697 | 6355 | Value is the id of the face to use. The face returned is suitable |
39506348 | 6356 | for displaying ASCII characters. */ |
fffc2367 | 6357 | |
82641697 GM |
6358 | int |
6359 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
6360 | region_end, endptr, base_face_id) | |
6361 | struct window *w; | |
6362 | Lisp_Object string; | |
6363 | int pos, bufpos; | |
6364 | int region_beg, region_end; | |
6365 | int *endptr; | |
6366 | enum face_id base_face_id; | |
660ed669 | 6367 | { |
82641697 GM |
6368 | Lisp_Object prop, position, end, limit; |
6369 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6370 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6371 | struct face *base_face; | |
6372 | int multibyte_p = STRING_MULTIBYTE (string); | |
6373 | ||
6374 | /* Get the value of the face property at the current position within | |
6375 | STRING. Value is nil if there is no face property. */ | |
6376 | XSETFASTINT (position, pos); | |
6377 | prop = Fget_text_property (position, Qface, string); | |
6378 | ||
6379 | /* Get the next position at which to check for faces. Value of end | |
6380 | is nil if face is constant all the way to the end of the string. | |
6381 | Otherwise it is a string position where to check faces next. | |
6382 | Limit is the maximum position up to which to check for property | |
6383 | changes in Fnext_single_property_change. Strings are usually | |
6384 | short, so set the limit to the end of the string. */ | |
6385 | XSETFASTINT (limit, XSTRING (string)->size); | |
6386 | end = Fnext_single_property_change (position, Qface, string, limit); | |
6387 | if (INTEGERP (end)) | |
6388 | *endptr = XFASTINT (end); | |
6389 | else | |
6390 | *endptr = -1; | |
6391 | ||
6392 | base_face = FACE_FROM_ID (f, base_face_id); | |
6393 | xassert (base_face); | |
6394 | ||
6395 | /* Optimize the default case that there is no face property and we | |
6396 | are not in the region. */ | |
6397 | if (NILP (prop) | |
6398 | && (base_face_id != DEFAULT_FACE_ID | |
6399 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6400 | that the region doesn't have to be taken into account. */ | |
6401 | || bufpos <= 0 | |
6402 | || bufpos < region_beg | |
6403 | || bufpos >= region_end) | |
6404 | && (multibyte_p | |
6405 | /* We can't realize faces for different charsets differently | |
6406 | if we don't have fonts, so we can stop here if not working | |
6407 | on a window-system frame. */ | |
6408 | || !FRAME_WINDOW_P (f) | |
39506348 | 6409 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
6410 | return base_face->id; |
6411 | ||
6412 | /* Begin with attributes from the base face. */ | |
6413 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6414 | ||
6415 | /* Merge in attributes specified via text properties. */ | |
6416 | if (!NILP (prop)) | |
6417 | merge_face_vector_with_property (f, attrs, prop); | |
6418 | ||
6419 | /* If in the region, merge in the region face. */ | |
6420 | if (bufpos | |
6421 | && bufpos >= region_beg | |
6422 | && bufpos < region_end) | |
a8517066 | 6423 | { |
82641697 GM |
6424 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
6425 | merge_face_vectors (XVECTOR (region_face)->contents, attrs); | |
a8517066 | 6426 | } |
660ed669 | 6427 | |
82641697 | 6428 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6429 | or realize a new one for ASCII characters. */ |
6430 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
6431 | } |
6432 | ||
6433 | ||
c115973b | 6434 | \f |
82641697 GM |
6435 | /*********************************************************************** |
6436 | Tests | |
6437 | ***********************************************************************/ | |
c115973b | 6438 | |
82641697 | 6439 | #if GLYPH_DEBUG |
c115973b | 6440 | |
82641697 | 6441 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6442 | |
82641697 GM |
6443 | static void |
6444 | dump_realized_face (face) | |
6445 | struct face *face; | |
6446 | { | |
6447 | fprintf (stderr, "ID: %d\n", face->id); | |
6448 | #ifdef HAVE_X_WINDOWS | |
6449 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6450 | #endif | |
6451 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6452 | face->foreground, | |
6453 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6454 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6455 | face->background, | |
6456 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6457 | fprintf (stderr, "font_name: %s (%s)\n", | |
6458 | face->font_name, | |
6459 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6460 | #ifdef HAVE_X_WINDOWS | |
6461 | fprintf (stderr, "font = %p\n", face->font); | |
6462 | #endif | |
6463 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6464 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6465 | fprintf (stderr, "underline: %d (%s)\n", | |
6466 | face->underline_p, | |
6467 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6468 | fprintf (stderr, "hash: %d\n", face->hash); | |
6469 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6470 | } |
6471 | ||
6472 | ||
82641697 GM |
6473 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6474 | (n) | |
6475 | Lisp_Object n; | |
c115973b | 6476 | { |
82641697 | 6477 | if (NILP (n)) |
c115973b | 6478 | { |
82641697 GM |
6479 | int i; |
6480 | ||
6481 | fprintf (stderr, "font selection order: "); | |
6482 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6483 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6484 | fprintf (stderr, "\n"); | |
6485 | ||
6486 | fprintf (stderr, "alternative fonts: "); | |
6487 | debug_print (Vface_alternative_font_family_alist); | |
6488 | fprintf (stderr, "\n"); | |
6489 | ||
c0617987 | 6490 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6491 | Fdump_face (make_number (i)); |
c115973b JB |
6492 | } |
6493 | else | |
f5e278c7 | 6494 | { |
82641697 GM |
6495 | struct face *face; |
6496 | CHECK_NUMBER (n, 0); | |
c0617987 | 6497 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6498 | if (face == NULL) |
6499 | error ("Not a valid face"); | |
6500 | dump_realized_face (face); | |
f5e278c7 | 6501 | } |
82641697 | 6502 | |
c115973b JB |
6503 | return Qnil; |
6504 | } | |
b5c53576 | 6505 | |
b5c53576 | 6506 | |
82641697 GM |
6507 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6508 | 0, 0, 0, "") | |
6509 | () | |
b5c53576 | 6510 | { |
82641697 GM |
6511 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6512 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6513 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6514 | return Qnil; | |
b5c53576 RS |
6515 | } |
6516 | ||
82641697 GM |
6517 | #endif /* GLYPH_DEBUG != 0 */ |
6518 | ||
b5c53576 | 6519 | |
c115973b | 6520 | \f |
82641697 GM |
6521 | /*********************************************************************** |
6522 | Initialization | |
6523 | ***********************************************************************/ | |
cb637678 | 6524 | |
c115973b | 6525 | void |
f211082d | 6526 | syms_of_xfaces () |
c115973b | 6527 | { |
f211082d JB |
6528 | Qface = intern ("face"); |
6529 | staticpro (&Qface); | |
fef04523 GM |
6530 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
6531 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
6532 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
6533 | staticpro (&Qframe_update_face_colors); | |
6534 | ||
82641697 GM |
6535 | /* Lisp face attribute keywords. */ |
6536 | QCfamily = intern (":family"); | |
6537 | staticpro (&QCfamily); | |
6538 | QCheight = intern (":height"); | |
6539 | staticpro (&QCheight); | |
6540 | QCweight = intern (":weight"); | |
6541 | staticpro (&QCweight); | |
6542 | QCslant = intern (":slant"); | |
6543 | staticpro (&QCslant); | |
6544 | QCunderline = intern (":underline"); | |
6545 | staticpro (&QCunderline); | |
6546 | QCinverse_video = intern (":inverse-video"); | |
6547 | staticpro (&QCinverse_video); | |
6548 | QCreverse_video = intern (":reverse-video"); | |
6549 | staticpro (&QCreverse_video); | |
6550 | QCforeground = intern (":foreground"); | |
6551 | staticpro (&QCforeground); | |
6552 | QCbackground = intern (":background"); | |
6553 | staticpro (&QCbackground); | |
6554 | QCstipple = intern (":stipple");; | |
6555 | staticpro (&QCstipple); | |
6556 | QCwidth = intern (":width"); | |
6557 | staticpro (&QCwidth); | |
6558 | QCfont = intern (":font"); | |
6559 | staticpro (&QCfont); | |
6560 | QCbold = intern (":bold"); | |
6561 | staticpro (&QCbold); | |
6562 | QCitalic = intern (":italic"); | |
6563 | staticpro (&QCitalic); | |
6564 | QCoverline = intern (":overline"); | |
6565 | staticpro (&QCoverline); | |
6566 | QCstrike_through = intern (":strike-through"); | |
6567 | staticpro (&QCstrike_through); | |
6568 | QCbox = intern (":box"); | |
6569 | staticpro (&QCbox); | |
6570 | ||
6571 | /* Symbols used for Lisp face attribute values. */ | |
6572 | QCcolor = intern (":color"); | |
6573 | staticpro (&QCcolor); | |
6574 | QCline_width = intern (":line-width"); | |
6575 | staticpro (&QCline_width); | |
6576 | QCstyle = intern (":style"); | |
6577 | staticpro (&QCstyle); | |
6578 | Qreleased_button = intern ("released-button"); | |
6579 | staticpro (&Qreleased_button); | |
6580 | Qpressed_button = intern ("pressed-button"); | |
6581 | staticpro (&Qpressed_button); | |
6582 | Qnormal = intern ("normal"); | |
6583 | staticpro (&Qnormal); | |
6584 | Qultra_light = intern ("ultra-light"); | |
6585 | staticpro (&Qultra_light); | |
6586 | Qextra_light = intern ("extra-light"); | |
6587 | staticpro (&Qextra_light); | |
6588 | Qlight = intern ("light"); | |
6589 | staticpro (&Qlight); | |
6590 | Qsemi_light = intern ("semi-light"); | |
6591 | staticpro (&Qsemi_light); | |
6592 | Qsemi_bold = intern ("semi-bold"); | |
6593 | staticpro (&Qsemi_bold); | |
6594 | Qbold = intern ("bold"); | |
6595 | staticpro (&Qbold); | |
6596 | Qextra_bold = intern ("extra-bold"); | |
6597 | staticpro (&Qextra_bold); | |
6598 | Qultra_bold = intern ("ultra-bold"); | |
6599 | staticpro (&Qultra_bold); | |
6600 | Qoblique = intern ("oblique"); | |
6601 | staticpro (&Qoblique); | |
6602 | Qitalic = intern ("italic"); | |
6603 | staticpro (&Qitalic); | |
6604 | Qreverse_oblique = intern ("reverse-oblique"); | |
6605 | staticpro (&Qreverse_oblique); | |
6606 | Qreverse_italic = intern ("reverse-italic"); | |
6607 | staticpro (&Qreverse_italic); | |
6608 | Qultra_condensed = intern ("ultra-condensed"); | |
6609 | staticpro (&Qultra_condensed); | |
6610 | Qextra_condensed = intern ("extra-condensed"); | |
6611 | staticpro (&Qextra_condensed); | |
6612 | Qcondensed = intern ("condensed"); | |
6613 | staticpro (&Qcondensed); | |
6614 | Qsemi_condensed = intern ("semi-condensed"); | |
6615 | staticpro (&Qsemi_condensed); | |
6616 | Qsemi_expanded = intern ("semi-expanded"); | |
6617 | staticpro (&Qsemi_expanded); | |
6618 | Qexpanded = intern ("expanded"); | |
6619 | staticpro (&Qexpanded); | |
6620 | Qextra_expanded = intern ("extra-expanded"); | |
6621 | staticpro (&Qextra_expanded); | |
6622 | Qultra_expanded = intern ("ultra-expanded"); | |
6623 | staticpro (&Qultra_expanded); | |
6624 | Qbackground_color = intern ("background-color"); | |
6625 | staticpro (&Qbackground_color); | |
6626 | Qforeground_color = intern ("foreground-color"); | |
6627 | staticpro (&Qforeground_color); | |
6628 | Qunspecified = intern ("unspecified"); | |
6629 | staticpro (&Qunspecified); | |
6630 | ||
92610620 GM |
6631 | Qface_alias = intern ("face-alias"); |
6632 | staticpro (&Qface_alias); | |
82641697 GM |
6633 | Qdefault = intern ("default"); |
6634 | staticpro (&Qdefault); | |
9ea173e8 GM |
6635 | Qtool_bar = intern ("tool-bar"); |
6636 | staticpro (&Qtool_bar); | |
82641697 GM |
6637 | Qregion = intern ("region"); |
6638 | staticpro (&Qregion); | |
8bd201d6 GM |
6639 | Qfringe = intern ("fringe"); |
6640 | staticpro (&Qfringe); | |
045dee35 GM |
6641 | Qheader_line = intern ("header-line"); |
6642 | staticpro (&Qheader_line); | |
8bd201d6 GM |
6643 | Qscroll_bar = intern ("scroll-bar"); |
6644 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
6645 | Qmenu = intern ("menu"); |
6646 | staticpro (&Qmenu); | |
8bd201d6 GM |
6647 | Qcursor = intern ("cursor"); |
6648 | staticpro (&Qcursor); | |
6649 | Qborder = intern ("border"); | |
6650 | staticpro (&Qborder); | |
6651 | Qmouse = intern ("mouse"); | |
6652 | staticpro (&Qmouse); | |
2d764c78 EZ |
6653 | Qtty_color_desc = intern ("tty-color-desc"); |
6654 | staticpro (&Qtty_color_desc); | |
6655 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
6656 | staticpro (&Qtty_color_by_index); | |
82641697 GM |
6657 | |
6658 | defsubr (&Sinternal_make_lisp_face); | |
6659 | defsubr (&Sinternal_lisp_face_p); | |
6660 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 6661 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6662 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 6663 | #endif |
ea4fa0af GM |
6664 | defsubr (&Scolor_gray_p); |
6665 | defsubr (&Scolor_supported_p); | |
82641697 GM |
6666 | defsubr (&Sinternal_get_lisp_face_attribute); |
6667 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6668 | defsubr (&Sinternal_lisp_face_equal_p); | |
6669 | defsubr (&Sinternal_lisp_face_empty_p); | |
6670 | defsubr (&Sinternal_copy_lisp_face); | |
6671 | defsubr (&Sinternal_merge_in_global_face); | |
6672 | defsubr (&Sface_font); | |
6673 | defsubr (&Sframe_face_alist); | |
6674 | defsubr (&Sinternal_set_font_selection_order); | |
6675 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
6676 | #if GLYPH_DEBUG | |
6677 | defsubr (&Sdump_face); | |
6678 | defsubr (&Sshow_face_resources); | |
6679 | #endif /* GLYPH_DEBUG */ | |
6680 | defsubr (&Sclear_face_cache); | |
6681 | ||
057df17c GM |
6682 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
6683 | "*Limit for font matching.\n\ | |
6684 | If an integer > 0, font matching functions won't load more than\n\ | |
6685 | that number of fonts when searching for a matching font."); | |
6686 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
6687 | ||
82641697 GM |
6688 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
6689 | "List of global face definitions (for internal use only.)"); | |
6690 | Vface_new_frame_defaults = Qnil; | |
6691 | ||
6692 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, | |
6693 | "*Default stipple pattern used on monochrome displays.\n\ | |
6694 | This stipple pattern is used on monochrome displays\n\ | |
6695 | instead of shades of gray for a face background color.\n\ | |
6696 | See `set-face-stipple' for possible values for this variable."); | |
6697 | Vface_default_stipple = build_string ("gray3"); | |
6698 | ||
82641697 GM |
6699 | DEFVAR_LISP ("face-alternative-font-family-alist", |
6700 | &Vface_alternative_font_family_alist, ""); | |
6701 | Vface_alternative_font_family_alist = Qnil; | |
6702 | ||
6703 | #if SCALABLE_FONTS | |
6704 | ||
6705 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, | |
6706 | "Allowed scalable fonts.\n\ | |
6707 | A value of nil means don't allow any scalable fonts.\n\ | |
6708 | A value of t means allow any scalable font.\n\ | |
6709 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
6710 | scaled if its name matches a regular expression in the list."); | |
c3cee013 JR |
6711 | #ifdef WINDOWSNT |
6712 | /* Windows uses mainly truetype fonts, so disallowing scalable fonts | |
6713 | by default limits the fonts available severely. */ | |
6714 | Vscalable_fonts_allowed = Qt; | |
6715 | #else | |
82641697 | 6716 | Vscalable_fonts_allowed = Qnil; |
c3cee013 | 6717 | #endif |
82641697 | 6718 | #endif /* SCALABLE_FONTS */ |
b5c53576 | 6719 | |
c3cee013 | 6720 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 6721 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
6722 | defsubr (&Sx_list_fonts); |
6723 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 6724 | defsubr (&Sx_family_fonts); |
82641697 | 6725 | defsubr (&Sx_font_family_list); |
c3cee013 | 6726 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 6727 | } |