Commit | Line | Data |
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82641697 | 1 | /* xfaces.c -- "Face" primitives. |
565c8641 | 2 | Copyright (C) 1993, 1994, 1998, 1999, 2000 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. |
178c5d9c | 30 | |
82641697 GM |
31 | 2. Relative proportionate width, aka character set width or set |
32 | width (swidth), e.g. `semi-compressed'. | |
178c5d9c | 33 | |
39506348 | 34 | 3. Font height in 1/10pt. |
178c5d9c | 35 | |
82641697 | 36 | 4. Font weight, e.g. `bold'. |
178c5d9c | 37 | |
82641697 | 38 | 5. Font slant, e.g. `italic'. |
178c5d9c | 39 | |
82641697 | 40 | 6. Foreground color. |
178c5d9c | 41 | |
82641697 GM |
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 | ||
2c20458f MB |
68 | 15. A face name or list of face names from which to inherit attributes. |
69 | ||
82641697 GM |
70 | Faces are frame-local by nature because Emacs allows to define the |
71 | same named face (face names are symbols) differently for different | |
72 | frames. Each frame has an alist of face definitions for all named | |
73 | faces. The value of a named face in such an alist is a Lisp vector | |
39506348 KH |
74 | with the symbol `face' in slot 0, and a slot for each of the face |
75 | attributes mentioned above. | |
82641697 GM |
76 | |
77 | There is also a global face alist `Vface_new_frame_defaults'. Face | |
78 | definitions from this list are used to initialize faces of newly | |
79 | created frames. | |
178c5d9c | 80 | |
82641697 | 81 | A face doesn't have to specify all attributes. Those not specified |
39506348 KH |
82 | have a value of `unspecified'. Faces specifying all attributes but |
83 | the 14th are called `fully-specified'. | |
82641697 GM |
84 | |
85 | ||
86 | Face merging. | |
87 | ||
88 | The display style of a given character in the text is determined by | |
89 | combining several faces. This process is called `face merging'. | |
90 | Any aspect of the display style that isn't specified by overlays or | |
91 | text properties is taken from the `default' face. Since it is made | |
92 | sure that the default face is always fully-specified, face merging | |
93 | always results in a fully-specified face. | |
94 | ||
95 | ||
96 | Face realization. | |
178c5d9c | 97 | |
82641697 GM |
98 | After all face attributes for a character have been determined by |
99 | merging faces of that character, that face is `realized'. The | |
100 | realization process maps face attributes to what is physically | |
101 | available on the system where Emacs runs. The result is a | |
102 | `realized face' in form of a struct face which is stored in the | |
103 | face cache of the frame on which it was realized. | |
104 | ||
39506348 KH |
105 | Face realization is done in the context of the character to display |
106 | because different fonts may be used for different characters. In | |
107 | other words, for characters that have different font | |
108 | specifications, different realized faces are needed to display | |
82641697 GM |
109 | them. |
110 | ||
39506348 KH |
111 | Font specification is done by fontsets. See the comment in |
112 | fontset.c for the details. In the current implementation, all ASCII | |
113 | characters share the same font in a fontset. | |
114 | ||
115 | Faces are at first realized for ASCII characters, and, at that | |
116 | time, assigned a specific realized fontset. Hereafter, we call | |
117 | such a face as `ASCII face'. When a face for a multibyte character | |
118 | is realized, it inherits (thus shares) a fontset of an ASCII face | |
119 | that has the same attributes other than font-related ones. | |
120 | ||
121 | Thus, all realzied face have a realized fontset. | |
82641697 GM |
122 | |
123 | ||
124 | Unibyte text. | |
125 | ||
39506348 KH |
126 | Unibyte text (i.e. raw 8-bit characters) is displayed with the same |
127 | font as ASCII characters. That is because it is expected that | |
128 | unibyte text users specify a font that is suitable both for ASCII | |
129 | and raw 8-bit characters. | |
130 | ||
82641697 GM |
131 | |
132 | Font selection. | |
133 | ||
134 | Font selection tries to find the best available matching font for a | |
39506348 | 135 | given (character, face) combination. |
82641697 | 136 | |
39506348 KH |
137 | If the face specifies a fontset name, that fontset determines a |
138 | pattern for fonts of the given character. If the face specifies a | |
139 | font name or the other font-related attributes, a fontset is | |
140 | realized from the default fontset. In that case, that | |
141 | specification determines a pattern for ASCII characters and the | |
142 | default fontset determines a pattern for multibyte characters. | |
82641697 GM |
143 | |
144 | Available fonts on the system on which Emacs runs are then matched | |
145 | against the font pattern. The result of font selection is the best | |
146 | match for the given face attributes in this font list. | |
147 | ||
148 | Font selection can be influenced by the user. | |
149 | ||
150 | 1. The user can specify the relative importance he gives the face | |
151 | attributes width, height, weight, and slant by setting | |
152 | face-font-selection-order (faces.el) to a list of face attribute | |
153 | names. The default is '(:width :height :weight :slant), and means | |
154 | that font selection first tries to find a good match for the font | |
155 | width specified by a face, then---within fonts with that | |
156 | width---tries to find a best match for the specified font height, | |
157 | etc. | |
158 | ||
159 | 2. Setting face-alternative-font-family-alist allows the user to | |
160 | specify alternative font families to try if a family specified by a | |
161 | face doesn't exist. | |
162 | ||
163 | ||
178c5d9c | 164 | Character compositition. |
39506348 KH |
165 | |
166 | Usually, the realization process is already finished when Emacs | |
167 | actually reflects the desired glyph matrix on the screen. However, | |
168 | on displaying a composition (sequence of characters to be composed | |
169 | on the screen), a suitable font for the components of the | |
170 | composition is selected and realized while drawing them on the | |
171 | screen, i.e. the realization process is delayed but in principle | |
172 | the same. | |
82641697 | 173 | |
178c5d9c | 174 | |
82641697 GM |
175 | Initialization of basic faces. |
176 | ||
177 | The faces `default', `modeline' are considered `basic faces'. | |
178 | When redisplay happens the first time for a newly created frame, | |
179 | basic faces are realized for CHARSET_ASCII. Frame parameters are | |
180 | used to fill in unspecified attributes of the default face. */ | |
181 | ||
182 | /* Define SCALABLE_FONTS to a non-zero value to enable scalable | |
183 | font use. Define it to zero to disable scalable font use. | |
184 | ||
185 | Use of too many or too large scalable fonts can crash XFree86 | |
186 | servers. That's why I've put the code dealing with scalable fonts | |
187 | in #if's. */ | |
188 | ||
189 | #define SCALABLE_FONTS 1 | |
7b7739b1 | 190 | |
68c45bf0 | 191 | #include <config.h> |
c115973b JB |
192 | #include <sys/types.h> |
193 | #include <sys/stat.h> | |
c115973b | 194 | #include "lisp.h" |
a8517066 | 195 | #include "charset.h" |
b5c53576 RS |
196 | #include "frame.h" |
197 | ||
f7cc6849 DL |
198 | #ifdef HAVE_WINDOW_SYSTEM |
199 | #include "fontset.h" | |
200 | #endif | |
87485d6f | 201 | #ifdef HAVE_X_WINDOWS |
c115973b | 202 | #include "xterm.h" |
c7ae3284 GM |
203 | #ifdef USE_MOTIF |
204 | #include <Xm/Xm.h> | |
205 | #include <Xm/XmStrDefs.h> | |
206 | #endif /* USE_MOTIF */ | |
87485d6f | 207 | #endif |
82641697 | 208 | |
87485d6f MW |
209 | #ifdef MSDOS |
210 | #include "dosfns.h" | |
211 | #endif | |
82641697 | 212 | |
c3cee013 JR |
213 | #ifdef WINDOWSNT |
214 | #include "w32term.h" | |
215 | #include "fontset.h" | |
216 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
217 | code with #ifdef blocks. */ | |
218 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO | |
219 | #define x_display_info w32_display_info | |
220 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
221 | #define check_x check_w32 | |
222 | #define x_list_fonts w32_list_fonts | |
223 | #define GCGraphicsExposures 0 | |
224 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
225 | not maximum as on X. Redefine here. */ | |
226 | #define FONT_WIDTH FONT_MAX_WIDTH | |
227 | #endif | |
228 | ||
c115973b | 229 | #include "buffer.h" |
f211082d | 230 | #include "dispextern.h" |
357f32fc | 231 | #include "blockinput.h" |
b6d40e46 | 232 | #include "window.h" |
bde7c500 | 233 | #include "intervals.h" |
c115973b | 234 | |
87485d6f | 235 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
236 | |
237 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
238 | time.h. On some such systems, Xos.h tries to redefine struct |
239 | timeval and struct timezone if USG is #defined while it is | |
240 | #included. */ | |
657070ac | 241 | |
82641697 | 242 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 243 | #include <time.h> |
657070ac JB |
244 | #undef USG |
245 | #include <X11/Xos.h> | |
246 | #define USG | |
e11d186d | 247 | #define __TIMEVAL__ |
82641697 GM |
248 | #else /* not XOS_NEEDS_TIME_H */ |
249 | #include <X11/Xos.h> | |
250 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 251 | |
82641697 | 252 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 253 | |
82641697 | 254 | #include <stdio.h> |
82641697 GM |
255 | #include <ctype.h> |
256 | #include "keyboard.h" | |
c115973b | 257 | |
82641697 GM |
258 | #ifndef max |
259 | #define max(A, B) ((A) > (B) ? (A) : (B)) | |
260 | #define min(A, B) ((A) < (B) ? (A) : (B)) | |
261 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
657070ac | 262 | #endif |
cb637678 | 263 | |
82641697 GM |
264 | /* Non-zero if face attribute ATTR is unspecified. */ |
265 | ||
266 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
267 | ||
268 | /* Value is the number of elements of VECTOR. */ | |
269 | ||
270 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
271 | ||
178c5d9c | 272 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
273 | to the copy. */ |
274 | ||
275 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 276 | |
82641697 GM |
277 | /* Make a copy of the contents of Lisp string S on the stack using |
278 | alloca. Value is a pointer to the copy. */ | |
279 | ||
280 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
281 | ||
178c5d9c | 282 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
283 | prime number). */ |
284 | ||
285 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
286 | ||
2d764c78 | 287 | /* A definition of XColor for non-X frames. */ |
ae4b4ba5 | 288 | |
2d764c78 | 289 | #ifndef HAVE_X_WINDOWS |
ae4b4ba5 GM |
290 | |
291 | typedef struct | |
292 | { | |
2d764c78 EZ |
293 | unsigned long pixel; |
294 | unsigned short red, green, blue; | |
295 | char flags; | |
296 | char pad; | |
ae4b4ba5 GM |
297 | } |
298 | XColor; | |
299 | ||
300 | #endif /* not HAVE_X_WINDOWS */ | |
2d764c78 | 301 | |
82641697 GM |
302 | /* Keyword symbols used for face attribute names. */ |
303 | ||
304 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
305 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
306 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
307 | Lisp_Object QCreverse_video; | |
2c20458f | 308 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
309 | |
310 | /* Symbols used for attribute values. */ | |
311 | ||
312 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
313 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
314 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
315 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
316 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
317 | Lisp_Object Qultra_expanded; | |
318 | Lisp_Object Qreleased_button, Qpressed_button; | |
319 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
320 | Lisp_Object Qunspecified; |
321 | ||
322 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 323 | |
92610620 GM |
324 | /* The name of the function to call when the background of the frame |
325 | has changed, frame_update_face_colors. */ | |
326 | ||
327 | Lisp_Object Qframe_update_face_colors; | |
328 | ||
82641697 GM |
329 | /* Names of basic faces. */ |
330 | ||
fb4927c4 | 331 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 332 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
fb4927c4 | 333 | extern Lisp_Object Qmode_line; |
8bd201d6 | 334 | |
92610620 GM |
335 | /* The symbol `face-alias'. A symbols having that property is an |
336 | alias for another face. Value of the property is the name of | |
337 | the aliased face. */ | |
338 | ||
339 | Lisp_Object Qface_alias; | |
340 | ||
8bd201d6 GM |
341 | /* Names of frame parameters related to faces. */ |
342 | ||
343 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
344 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
345 | |
346 | /* Default stipple pattern used on monochrome displays. This stipple | |
347 | pattern is used on monochrome displays instead of shades of gray | |
348 | for a face background color. See `set-face-stipple' for possible | |
349 | values for this variable. */ | |
350 | ||
351 | Lisp_Object Vface_default_stipple; | |
352 | ||
82641697 GM |
353 | /* Alist of alternative font families. Each element is of the form |
354 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
355 | try FAMILY1, then FAMILY2, ... */ | |
356 | ||
357 | Lisp_Object Vface_alternative_font_family_alist; | |
358 | ||
359 | /* Allowed scalable fonts. A value of nil means don't allow any | |
360 | scalable fonts. A value of t means allow the use of any scalable | |
361 | font. Otherwise, value must be a list of regular expressions. A | |
362 | font may be scaled if its name matches a regular expression in the | |
363 | list. */ | |
364 | ||
365 | #if SCALABLE_FONTS | |
366 | Lisp_Object Vscalable_fonts_allowed; | |
367 | #endif | |
368 | ||
057df17c GM |
369 | /* Maximum number of fonts to consider in font_list. If not an |
370 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
371 | ||
372 | Lisp_Object Vfont_list_limit; | |
373 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
374 | ||
82641697 GM |
375 | /* The symbols `foreground-color' and `background-color' which can be |
376 | used as part of a `face' property. This is for compatibility with | |
377 | Emacs 20.2. */ | |
378 | ||
379 | Lisp_Object Qforeground_color, Qbackground_color; | |
380 | ||
381 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 382 | |
ff83dbb1 | 383 | Lisp_Object Qface; |
82641697 GM |
384 | extern Lisp_Object Qmouse_face; |
385 | ||
386 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
387 | ||
fef04523 | 388 | Lisp_Object Qbitmap_spec_p; |
f211082d | 389 | |
82641697 GM |
390 | /* Alist of global face definitions. Each element is of the form |
391 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
392 | is a Lisp vector of face attributes. These faces are used | |
393 | to initialize faces for new frames. */ | |
cb637678 | 394 | |
82641697 | 395 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 396 | |
82641697 | 397 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 398 | |
82641697 | 399 | static int next_lface_id; |
c115973b | 400 | |
82641697 | 401 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 402 | |
82641697 GM |
403 | static Lisp_Object *lface_id_to_name; |
404 | static int lface_id_to_name_size; | |
c115973b | 405 | |
ae4b4ba5 GM |
406 | /* TTY color-related functions (defined in tty-colors.el). */ |
407 | ||
2d764c78 | 408 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; |
82641697 | 409 | |
ae4b4ba5 GM |
410 | /* The name of the function used to compute colors on TTYs. */ |
411 | ||
412 | Lisp_Object Qtty_color_alist; | |
413 | ||
414 | /* An alist of defined terminal colors and their RGB values. */ | |
415 | ||
416 | Lisp_Object Vtty_defined_color_alist; | |
417 | ||
82641697 GM |
418 | /* Counter for calls to clear_face_cache. If this counter reaches |
419 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
420 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
421 | ||
422 | static int clear_font_table_count; | |
423 | #define CLEAR_FONT_TABLE_COUNT 100 | |
424 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
425 | ||
426 | /* Non-zero means face attributes have been changed since the last | |
427 | redisplay. Used in redisplay_internal. */ | |
428 | ||
429 | int face_change_count; | |
430 | ||
a4a76b61 GM |
431 | /* Non-zero means don't display bold text if a face's foreground |
432 | and background colors are the inverse of the default colors of the | |
433 | display. This is a kluge to suppress `bold black' foreground text | |
434 | which is hard to read on an LCD monitor. */ | |
435 | ||
436 | int tty_suppress_bold_inverse_default_colors_p; | |
437 | ||
dbc968b8 GM |
438 | /* A list of the form `((x . y))' used to avoid consing in |
439 | Finternal_set_lisp_face_attribute. */ | |
440 | ||
441 | static Lisp_Object Vparam_value_alist; | |
442 | ||
82641697 GM |
443 | /* The total number of colors currently allocated. */ |
444 | ||
445 | #if GLYPH_DEBUG | |
446 | static int ncolors_allocated; | |
447 | static int npixmaps_allocated; | |
448 | static int ngcs; | |
449 | #endif | |
450 | ||
451 | ||
452 | \f | |
453 | /* Function prototypes. */ | |
454 | ||
455 | struct font_name; | |
456 | struct table_entry; | |
457 | ||
ae4b4ba5 GM |
458 | static void map_tty_color P_ ((struct frame *, struct face *, |
459 | enum lface_attribute_index, int *)); | |
c7ae3284 | 460 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
82641697 GM |
461 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); |
462 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
463 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
464 | int)); | |
465 | static int first_font_matching P_ ((struct frame *f, char *, | |
466 | struct font_name *)); | |
467 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
468 | struct font_name *, int, int, int)); | |
469 | static int font_scalable_p P_ ((struct font_name *)); | |
82641697 GM |
470 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
471 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
472 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
473 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 474 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 475 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
476 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
477 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
478 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
479 | static char *build_font_name P_ ((struct font_name *)); | |
480 | static void free_font_names P_ ((struct font_name *, int)); | |
481 | static int sorted_font_list P_ ((struct frame *, char *, | |
482 | int (*cmpfn) P_ ((const void *, const void *)), | |
483 | struct font_name **)); | |
39506348 KH |
484 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
485 | Lisp_Object, struct font_name **)); | |
486 | static int try_font_list P_ ((struct frame *, Lisp_Object *, Lisp_Object, | |
487 | Lisp_Object, Lisp_Object, struct font_name **)); | |
82641697 | 488 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
489 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
490 | struct face *, int)); | |
82641697 | 491 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 492 | Lisp_Object *, int, struct face *)); |
82641697 GM |
493 | static struct face *realize_tty_face P_ ((struct face_cache *, |
494 | Lisp_Object *, int)); | |
495 | static int realize_basic_faces P_ ((struct frame *)); | |
496 | static int realize_default_face P_ ((struct frame *)); | |
497 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
498 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
499 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
500 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
501 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
502 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
503 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
504 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
505 | static void clear_face_gcs P_ ((struct face_cache *)); | |
506 | static void free_face_cache P_ ((struct face_cache *)); | |
507 | static int face_numeric_weight P_ ((Lisp_Object)); | |
508 | static int face_numeric_slant P_ ((Lisp_Object)); | |
509 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 KH |
510 | static int face_fontset P_ ((Lisp_Object *)); |
511 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int)); | |
2c20458f MB |
512 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, Lisp_Object)); |
513 | static void merge_face_inheritance P_ ((struct frame *f, Lisp_Object, | |
514 | Lisp_Object *, Lisp_Object)); | |
82641697 GM |
515 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, |
516 | Lisp_Object)); | |
39506348 KH |
517 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
518 | Lisp_Object, int, int)); | |
82641697 | 519 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 520 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
521 | static void free_realized_faces P_ ((struct face_cache *)); |
522 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
523 | struct font_name *, int)); | |
524 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
525 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
526 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
527 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
528 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
529 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
530 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
531 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
532 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
533 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
534 | int, int)); | |
535 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
536 | struct font_name *, int, |
537 | Lisp_Object)); | |
82641697 GM |
538 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
539 | struct font_name *, int)); | |
540 | ||
c3cee013 | 541 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
542 | |
543 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
544 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
545 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
546 | int (*cmpfn) P_ ((const void *, const void *)))); | |
547 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
548 | static void x_free_gc P_ ((struct frame *, GC)); | |
549 | static void clear_font_table P_ ((struct frame *)); | |
550 | ||
c3cee013 JR |
551 | #ifdef WINDOWSNT |
552 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
553 | #endif /* WINDOWSNT */ | |
554 | ||
555 | #endif /* HAVE_WINDOW_SYSTEM */ | |
c115973b | 556 | |
cb637678 | 557 | \f |
82641697 GM |
558 | /*********************************************************************** |
559 | Utilities | |
560 | ***********************************************************************/ | |
c115973b | 561 | |
87485d6f | 562 | #ifdef HAVE_X_WINDOWS |
cb637678 | 563 | |
a435fc2a GM |
564 | #ifdef DEBUG_X_COLORS |
565 | ||
566 | /* The following is a poor mans infrastructure for debugging X color | |
567 | allocation problems on displays with PseudoColor-8. Some X servers | |
568 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
569 | color reference counts completely so that they don't signal an | |
570 | error when a color is freed whose reference count is already 0. | |
571 | Other X servers do. To help me debug this, the following code | |
572 | implements a simple reference counting schema of its own, for a | |
573 | single display/screen. --gerd. */ | |
574 | ||
575 | /* Reference counts for pixel colors. */ | |
576 | ||
577 | int color_count[256]; | |
578 | ||
579 | /* Register color PIXEL as allocated. */ | |
580 | ||
581 | void | |
582 | register_color (pixel) | |
583 | unsigned long pixel; | |
584 | { | |
585 | xassert (pixel < 256); | |
586 | ++color_count[pixel]; | |
587 | } | |
588 | ||
589 | ||
590 | /* Register color PIXEL as deallocated. */ | |
591 | ||
592 | void | |
593 | unregister_color (pixel) | |
594 | unsigned long pixel; | |
595 | { | |
596 | xassert (pixel < 256); | |
597 | if (color_count[pixel] > 0) | |
598 | --color_count[pixel]; | |
599 | else | |
600 | abort (); | |
601 | } | |
602 | ||
603 | ||
604 | /* Register N colors from PIXELS as deallocated. */ | |
605 | ||
606 | void | |
607 | unregister_colors (pixels, n) | |
608 | unsigned long *pixels; | |
609 | int n; | |
610 | { | |
611 | int i; | |
612 | for (i = 0; i < n; ++i) | |
613 | unregister_color (pixels[i]); | |
614 | } | |
615 | ||
08dc08dc GM |
616 | |
617 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
618 | "Dump currently allocated colors and their reference counts to stderr.") | |
619 | () | |
620 | { | |
621 | int i, n; | |
622 | ||
623 | fputc ('\n', stderr); | |
178c5d9c | 624 | |
08dc08dc GM |
625 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
626 | if (color_count[i]) | |
627 | { | |
628 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
629 | ++n; | |
630 | if (n % 5 == 0) | |
631 | fputc ('\n', stderr); | |
632 | else | |
633 | fputc ('\t', stderr); | |
634 | } | |
635 | ||
636 | if (n % 5 != 0) | |
637 | fputc ('\n', stderr); | |
638 | return Qnil; | |
639 | } | |
640 | ||
641 | ||
a435fc2a GM |
642 | #endif /* DEBUG_X_COLORS */ |
643 | ||
1f847cf8 GM |
644 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
645 | color values. Interrupt input must be blocked when this function | |
646 | is called. */ | |
647 | ||
648 | void | |
649 | x_free_colors (f, pixels, npixels) | |
650 | struct frame *f; | |
651 | unsigned long *pixels; | |
652 | int npixels; | |
653 | { | |
654 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
655 | ||
656 | /* If display has an immutable color map, freeing colors is not | |
657 | necessary and some servers don't allow it. So don't do it. */ | |
658 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
659 | { | |
08dc08dc GM |
660 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
661 | pixels, npixels, 0); | |
a435fc2a | 662 | #ifdef DEBUG_X_COLORS |
08dc08dc | 663 | unregister_colors (pixels, npixels); |
a435fc2a | 664 | #endif |
08dc08dc GM |
665 | } |
666 | } | |
667 | ||
668 | ||
669 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
670 | color values. Interrupt input must be blocked when this function | |
671 | is called. */ | |
672 | ||
673 | void | |
674 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
675 | Display *dpy; | |
676 | Screen *screen; | |
677 | Colormap cmap; | |
678 | unsigned long *pixels; | |
679 | int npixels; | |
680 | { | |
681 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
682 | int class = dpyinfo->visual->class; | |
683 | ||
684 | /* If display has an immutable color map, freeing colors is not | |
685 | necessary and some servers don't allow it. So don't do it. */ | |
686 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
687 | { | |
688 | XFreeColors (dpy, cmap, pixels, npixels, 0); | |
a435fc2a | 689 | #ifdef DEBUG_X_COLORS |
08dc08dc | 690 | unregister_colors (pixels, npixels); |
a435fc2a | 691 | #endif |
1f847cf8 GM |
692 | } |
693 | } | |
694 | ||
08dc08dc | 695 | |
82641697 GM |
696 | /* Create and return a GC for use on frame F. GC values and mask |
697 | are given by XGCV and MASK. */ | |
698 | ||
699 | static INLINE GC | |
700 | x_create_gc (f, mask, xgcv) | |
cb637678 | 701 | struct frame *f; |
82641697 GM |
702 | unsigned long mask; |
703 | XGCValues *xgcv; | |
c115973b JB |
704 | { |
705 | GC gc; | |
82641697 GM |
706 | BLOCK_INPUT; |
707 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
708 | UNBLOCK_INPUT; | |
709 | IF_DEBUG (++ngcs); | |
710 | return gc; | |
711 | } | |
c115973b | 712 | |
42120bc7 | 713 | |
82641697 GM |
714 | /* Free GC which was used on frame F. */ |
715 | ||
716 | static INLINE void | |
717 | x_free_gc (f, gc) | |
718 | struct frame *f; | |
719 | GC gc; | |
720 | { | |
660ed669 | 721 | BLOCK_INPUT; |
82641697 GM |
722 | xassert (--ngcs >= 0); |
723 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
724 | UNBLOCK_INPUT; | |
725 | } | |
660ed669 | 726 | |
82641697 | 727 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 728 | |
c3cee013 JR |
729 | #ifdef WINDOWSNT |
730 | /* W32 emulation of GCs */ | |
731 | ||
732 | static INLINE GC | |
733 | x_create_gc (f, mask, xgcv) | |
734 | struct frame *f; | |
735 | unsigned long mask; | |
736 | XGCValues *xgcv; | |
737 | { | |
738 | GC gc; | |
739 | BLOCK_INPUT; | |
740 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
741 | UNBLOCK_INPUT; | |
742 | IF_DEBUG (++ngcs); | |
743 | return gc; | |
744 | } | |
745 | ||
746 | ||
747 | /* Free GC which was used on frame F. */ | |
748 | ||
749 | static INLINE void | |
750 | x_free_gc (f, gc) | |
751 | struct frame *f; | |
752 | GC gc; | |
753 | { | |
754 | BLOCK_INPUT; | |
755 | xassert (--ngcs >= 0); | |
756 | xfree (gc); | |
757 | UNBLOCK_INPUT; | |
758 | } | |
759 | ||
760 | #endif /* WINDOWSNT */ | |
660ed669 | 761 | |
82641697 GM |
762 | /* Like stricmp. Used to compare parts of font names which are in |
763 | ISO8859-1. */ | |
764 | ||
765 | int | |
766 | xstricmp (s1, s2) | |
767 | unsigned char *s1, *s2; | |
768 | { | |
769 | while (*s1 && *s2) | |
95887807 | 770 | { |
82641697 GM |
771 | unsigned char c1 = tolower (*s1); |
772 | unsigned char c2 = tolower (*s2); | |
773 | if (c1 != c2) | |
774 | return c1 < c2 ? -1 : 1; | |
775 | ++s1, ++s2; | |
95887807 | 776 | } |
cd0bb842 | 777 | |
82641697 GM |
778 | if (*s1 == 0) |
779 | return *s2 == 0 ? 0 : -1; | |
780 | return 1; | |
781 | } | |
660ed669 | 782 | |
660ed669 | 783 | |
82641697 | 784 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 785 | |
82641697 GM |
786 | static unsigned char * |
787 | xstrlwr (s) | |
788 | unsigned char *s; | |
789 | { | |
790 | unsigned char *p = s; | |
791 | ||
792 | for (p = s; *p; ++p) | |
793 | *p = tolower (*p); | |
794 | ||
795 | return s; | |
c115973b | 796 | } |
cb637678 | 797 | |
42120bc7 | 798 | |
82641697 GM |
799 | /* Signal `error' with message S, and additional argument ARG. */ |
800 | ||
801 | static void | |
802 | signal_error (s, arg) | |
803 | char *s; | |
804 | Lisp_Object arg; | |
42120bc7 | 805 | { |
82641697 GM |
806 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
807 | } | |
42120bc7 | 808 | |
82641697 | 809 | |
c0617987 GM |
810 | /* If FRAME is nil, return a pointer to the selected frame. |
811 | Otherwise, check that FRAME is a live frame, and return a pointer | |
812 | to it. NPARAM is the parameter number of FRAME, for | |
813 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
814 | Lisp function definitions. */ | |
82641697 GM |
815 | |
816 | static INLINE struct frame * | |
817 | frame_or_selected_frame (frame, nparam) | |
818 | Lisp_Object frame; | |
819 | int nparam; | |
820 | { | |
82641697 | 821 | if (NILP (frame)) |
c0617987 | 822 | frame = selected_frame; |
178c5d9c | 823 | |
c0617987 GM |
824 | CHECK_LIVE_FRAME (frame, nparam); |
825 | return XFRAME (frame); | |
42120bc7 | 826 | } |
82641697 | 827 | |
42120bc7 | 828 | \f |
82641697 GM |
829 | /*********************************************************************** |
830 | Frames and faces | |
831 | ***********************************************************************/ | |
cd0bb842 | 832 | |
82641697 | 833 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 834 | |
82641697 GM |
835 | void |
836 | init_frame_faces (f) | |
cb637678 | 837 | struct frame *f; |
cb637678 | 838 | { |
82641697 GM |
839 | /* Make a face cache, if F doesn't have one. */ |
840 | if (FRAME_FACE_CACHE (f) == NULL) | |
841 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 842 | |
c3cee013 | 843 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 844 | /* Make the image cache. */ |
c3cee013 | 845 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
846 | { |
847 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
848 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
849 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
850 | } | |
c3cee013 | 851 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 852 | |
178c5d9c | 853 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
854 | parameters to realize basic faces at this point. */ |
855 | #ifdef HAVE_X_WINDOWS | |
856 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
857 | #endif |
858 | #ifdef WINDOWSNT | |
859 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
82641697 GM |
860 | #endif |
861 | if (!realize_basic_faces (f)) | |
862 | abort (); | |
863 | } | |
cb637678 | 864 | |
cb637678 | 865 | |
82641697 | 866 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 867 | |
82641697 GM |
868 | void |
869 | free_frame_faces (f) | |
cb637678 | 870 | struct frame *f; |
cb637678 | 871 | { |
82641697 | 872 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 873 | |
82641697 GM |
874 | if (face_cache) |
875 | { | |
876 | free_face_cache (face_cache); | |
877 | FRAME_FACE_CACHE (f) = NULL; | |
878 | } | |
660ed669 | 879 | |
c3cee013 JR |
880 | #ifdef HAVE_WINDOW_SYSTEM |
881 | if (FRAME_WINDOW_P (f)) | |
195f798e | 882 | { |
82641697 GM |
883 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
884 | if (image_cache) | |
195f798e | 885 | { |
82641697 GM |
886 | --image_cache->refcount; |
887 | if (image_cache->refcount == 0) | |
888 | free_image_cache (f); | |
195f798e RS |
889 | } |
890 | } | |
c3cee013 | 891 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
892 | } |
893 | ||
82641697 | 894 | |
8bd201d6 GM |
895 | /* Clear face caches, and recompute basic faces for frame F. Call |
896 | this after changing frame parameters on which those faces depend, | |
897 | or when realized faces have been freed due to changing attributes | |
898 | of named faces. */ | |
82641697 GM |
899 | |
900 | void | |
901 | recompute_basic_faces (f) | |
cb637678 | 902 | struct frame *f; |
cb637678 | 903 | { |
82641697 GM |
904 | if (FRAME_FACE_CACHE (f)) |
905 | { | |
8bd201d6 | 906 | clear_face_cache (0); |
18df9369 GM |
907 | if (!realize_basic_faces (f)) |
908 | abort (); | |
82641697 GM |
909 | } |
910 | } | |
cb637678 | 911 | |
cb637678 | 912 | |
82641697 GM |
913 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
914 | try to free unused fonts, too. */ | |
cb637678 | 915 | |
adfea139 | 916 | void |
82641697 GM |
917 | clear_face_cache (clear_fonts_p) |
918 | int clear_fonts_p; | |
cb637678 | 919 | { |
c3cee013 | 920 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
921 | Lisp_Object tail, frame; |
922 | struct frame *f; | |
828e66d1 | 923 | |
82641697 GM |
924 | if (clear_fonts_p |
925 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 926 | { |
82641697 GM |
927 | /* From time to time see if we can unload some fonts. This also |
928 | frees all realized faces on all frames. Fonts needed by | |
929 | faces will be loaded again when faces are realized again. */ | |
930 | clear_font_table_count = 0; | |
195f798e | 931 | |
82641697 | 932 | FOR_EACH_FRAME (tail, frame) |
195f798e | 933 | { |
82641697 | 934 | f = XFRAME (frame); |
c3cee013 | 935 | if (FRAME_WINDOW_P (f) |
82641697 | 936 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
195f798e | 937 | { |
82641697 GM |
938 | free_all_realized_faces (frame); |
939 | clear_font_table (f); | |
940 | } | |
941 | } | |
942 | } | |
943 | else | |
944 | { | |
945 | /* Clear GCs of realized faces. */ | |
946 | FOR_EACH_FRAME (tail, frame) | |
947 | { | |
948 | f = XFRAME (frame); | |
c3cee013 | 949 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
950 | { |
951 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
952 | clear_image_cache (f, 0); | |
195f798e RS |
953 | } |
954 | } | |
828e66d1 | 955 | } |
c3cee013 | 956 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
957 | } |
958 | ||
82641697 GM |
959 | |
960 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
961 | "Clear face caches on all frames.\n\ | |
962 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
963 | (thorougly) | |
964 | Lisp_Object thorougly; | |
cd0bb842 | 965 | { |
82641697 | 966 | clear_face_cache (!NILP (thorougly)); |
ae4b4ba5 GM |
967 | ++face_change_count; |
968 | ++windows_or_buffers_changed; | |
82641697 GM |
969 | return Qnil; |
970 | } | |
971 | ||
972 | ||
973 | ||
c3cee013 | 974 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
975 | |
976 | ||
39506348 KH |
977 | /* Remove those fonts from the font table of frame F exept for the |
978 | default ASCII font for the frame. Called from clear_face_cache | |
979 | from time to time. */ | |
82641697 GM |
980 | |
981 | static void | |
982 | clear_font_table (f) | |
983 | struct frame *f; | |
984 | { | |
985 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
82641697 GM |
986 | int i; |
987 | ||
c3cee013 | 988 | xassert (FRAME_WINDOW_P (f)); |
82641697 | 989 | |
39506348 KH |
990 | /* Free those fonts that are not used by the frame F as the default. */ |
991 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
992 | { | |
993 | struct font_info *font_info = dpyinfo->font_table + i; | |
82641697 | 994 | |
39506348 KH |
995 | if (!font_info->name |
996 | || font_info->font == FRAME_FONT (f)) | |
997 | continue; | |
82641697 | 998 | |
39506348 KH |
999 | /* Free names. */ |
1000 | if (font_info->full_name != font_info->name) | |
1001 | xfree (font_info->full_name); | |
1002 | xfree (font_info->name); | |
82641697 | 1003 | |
39506348 KH |
1004 | /* Free the font. */ |
1005 | BLOCK_INPUT; | |
c3cee013 | 1006 | #ifdef HAVE_X_WINDOWS |
39506348 | 1007 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
1008 | #endif |
1009 | #ifdef WINDOWSNT | |
39506348 | 1010 | w32_unload_font (dpyinfo, font_info->font); |
c3cee013 | 1011 | #endif |
39506348 | 1012 | UNBLOCK_INPUT; |
82641697 | 1013 | |
39506348 KH |
1014 | /* Mark font table slot free. */ |
1015 | font_info->font = NULL; | |
1016 | font_info->name = font_info->full_name = NULL; | |
1017 | } | |
82641697 GM |
1018 | } |
1019 | ||
c3cee013 | 1020 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1021 | |
1022 | ||
1023 | \f | |
1024 | /*********************************************************************** | |
1025 | X Pixmaps | |
1026 | ***********************************************************************/ | |
1027 | ||
c3cee013 | 1028 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1029 | |
fef04523 GM |
1030 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
1031 | "Value is non-nil if OBJECT is a valid bitmap specification.\n\ | |
1032 | A bitmap specification is either a string, a file name, or a list\n\ | |
1033 | (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\ | |
c7ae3284 GM |
1034 | HEIGHT is its height, and DATA is a string containing the bits of\n\ |
1035 | the pixmap. Bits are stored row by row, each row occupies\n\ | |
1036 | (WIDTH + 7)/8 bytes.") | |
82641697 GM |
1037 | (object) |
1038 | Lisp_Object object; | |
1039 | { | |
c7ae3284 | 1040 | int pixmap_p = 0; |
178c5d9c | 1041 | |
c7ae3284 GM |
1042 | if (STRINGP (object)) |
1043 | /* If OBJECT is a string, it's a file name. */ | |
1044 | pixmap_p = 1; | |
1045 | else if (CONSP (object)) | |
1046 | { | |
1047 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1048 | HEIGHT must be integers > 0, and DATA must be string large | |
1049 | enough to hold a bitmap of the specified size. */ | |
1050 | Lisp_Object width, height, data; | |
1051 | ||
1052 | height = width = data = Qnil; | |
178c5d9c | 1053 | |
c7ae3284 GM |
1054 | if (CONSP (object)) |
1055 | { | |
1056 | width = XCAR (object); | |
1057 | object = XCDR (object); | |
1058 | if (CONSP (object)) | |
1059 | { | |
1060 | height = XCAR (object); | |
1061 | object = XCDR (object); | |
1062 | if (CONSP (object)) | |
1063 | data = XCAR (object); | |
1064 | } | |
1065 | } | |
cd0bb842 | 1066 | |
c7ae3284 GM |
1067 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1068 | { | |
1069 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1070 | / BITS_PER_CHAR); | |
6fc556fd | 1071 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1072 | pixmap_p = 1; |
1073 | } | |
1074 | } | |
1075 | ||
1076 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1077 | } |
1078 | ||
cd0bb842 | 1079 | |
82641697 GM |
1080 | /* Load a bitmap according to NAME (which is either a file name or a |
1081 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1082 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1083 | bitmap cannot be loaded, display a message saying so, and return | |
1084 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1085 | if these pointers are not null. */ | |
cd0bb842 | 1086 | |
82641697 | 1087 | static int |
cd0bb842 | 1088 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1089 | FRAME_PTR f; |
cd0bb842 RS |
1090 | Lisp_Object name; |
1091 | unsigned int *w_ptr, *h_ptr; | |
1092 | { | |
1093 | int bitmap_id; | |
1094 | Lisp_Object tem; | |
1095 | ||
1096 | if (NILP (name)) | |
82641697 | 1097 | return 0; |
cd0bb842 | 1098 | |
fef04523 | 1099 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1100 | if (NILP (tem)) |
fef04523 | 1101 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1102 | |
1103 | BLOCK_INPUT; | |
cd0bb842 RS |
1104 | if (CONSP (name)) |
1105 | { | |
1106 | /* Decode a bitmap spec into a bitmap. */ | |
1107 | ||
1108 | int h, w; | |
1109 | Lisp_Object bits; | |
1110 | ||
1111 | w = XINT (Fcar (name)); | |
1112 | h = XINT (Fcar (Fcdr (name))); | |
1113 | bits = Fcar (Fcdr (Fcdr (name))); | |
1114 | ||
1115 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
1116 | w, h); | |
1117 | } | |
1118 | else | |
1119 | { | |
1120 | /* It must be a string -- a file name. */ | |
1121 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1122 | } | |
1123 | UNBLOCK_INPUT; | |
1124 | ||
7812a96f | 1125 | if (bitmap_id < 0) |
82641697 | 1126 | { |
1b8f7fbc | 1127 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1128 | bitmap_id = 0; |
cd0bb842 | 1129 | |
82641697 GM |
1130 | if (w_ptr) |
1131 | *w_ptr = 0; | |
1132 | if (h_ptr) | |
1133 | *h_ptr = 0; | |
1134 | } | |
1135 | else | |
1136 | { | |
1137 | #if GLYPH_DEBUG | |
1138 | ++npixmaps_allocated; | |
1139 | #endif | |
1140 | if (w_ptr) | |
1141 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1142 | ||
1143 | if (h_ptr) | |
1144 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1145 | } | |
cd0bb842 RS |
1146 | |
1147 | return bitmap_id; | |
cb637678 | 1148 | } |
87485d6f | 1149 | |
c3cee013 | 1150 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1151 | |
87485d6f | 1152 | |
82641697 GM |
1153 | \f |
1154 | /*********************************************************************** | |
1155 | Minimum font bounds | |
1156 | ***********************************************************************/ | |
1157 | ||
c3cee013 | 1158 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1159 | |
d6fc0a22 GM |
1160 | /* Update the line_height of frame F. Return non-zero if line height |
1161 | changes. */ | |
87485d6f | 1162 | |
82641697 GM |
1163 | int |
1164 | frame_update_line_height (f) | |
87485d6f | 1165 | struct frame *f; |
87485d6f | 1166 | { |
39506348 | 1167 | int line_height, changed_p; |
178c5d9c | 1168 | |
39506348 | 1169 | line_height = FONT_HEIGHT (FRAME_FONT (f)); |
c3cee013 JR |
1170 | changed_p = line_height != FRAME_LINE_HEIGHT (f); |
1171 | FRAME_LINE_HEIGHT (f) = line_height; | |
82641697 | 1172 | return changed_p; |
87485d6f MW |
1173 | } |
1174 | ||
c3cee013 | 1175 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1176 | |
1177 | \f | |
1178 | /*********************************************************************** | |
1179 | Fonts | |
1180 | ***********************************************************************/ | |
1181 | ||
c3cee013 | 1182 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1183 | |
39506348 KH |
1184 | /* Load font of face FACE which is used on frame F to display |
1185 | character C. The name of the font to load is determined by lface | |
1186 | and fontset of FACE. */ | |
82641697 GM |
1187 | |
1188 | static void | |
39506348 | 1189 | load_face_font (f, face, c) |
82641697 GM |
1190 | struct frame *f; |
1191 | struct face *face; | |
39506348 | 1192 | int c; |
87485d6f | 1193 | { |
82641697 | 1194 | struct font_info *font_info = NULL; |
39506348 | 1195 | char *font_name; |
178c5d9c | 1196 | |
82641697 | 1197 | face->font_info_id = -1; |
82641697 | 1198 | face->font = NULL; |
39506348 KH |
1199 | |
1200 | font_name = choose_face_font (f, face->lface, face->fontset, c); | |
1201 | if (!font_name) | |
1202 | return; | |
1203 | ||
82641697 | 1204 | BLOCK_INPUT; |
39506348 | 1205 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1206 | UNBLOCK_INPUT; |
1207 | ||
1208 | if (font_info) | |
1209 | { | |
39506348 | 1210 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1211 | face->font = font_info->font; |
1212 | face->font_name = font_info->full_name; | |
39506348 | 1213 | if (face->gc) |
82641697 | 1214 | { |
39506348 KH |
1215 | x_free_gc (f, face->gc); |
1216 | face->gc = 0; | |
82641697 GM |
1217 | } |
1218 | } | |
39506348 | 1219 | else |
1b8f7fbc | 1220 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1221 | build_string (font_name), Qnil); |
39506348 | 1222 | xfree (font_name); |
87485d6f MW |
1223 | } |
1224 | ||
c3cee013 | 1225 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1226 | |
87485d6f | 1227 | |
82641697 GM |
1228 | \f |
1229 | /*********************************************************************** | |
1230 | X Colors | |
1231 | ***********************************************************************/ | |
1232 | ||
2d764c78 | 1233 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1234 | |
2d764c78 EZ |
1235 | int |
1236 | tty_defined_color (f, color_name, color_def, alloc) | |
1237 | struct frame *f; | |
1238 | char *color_name; | |
1239 | XColor *color_def; | |
1240 | int alloc; | |
1241 | { | |
1242 | Lisp_Object color_desc; | |
ae4b4ba5 GM |
1243 | unsigned long color_idx = FACE_TTY_DEFAULT_COLOR; |
1244 | unsigned long red = 0, green = 0, blue = 0; | |
2d764c78 EZ |
1245 | int status = 1; |
1246 | ||
1247 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1248 | { | |
a61c12d5 EZ |
1249 | Lisp_Object frame; |
1250 | ||
1251 | XSETFRAME (frame, f); | |
2d764c78 | 1252 | status = 0; |
a61c12d5 | 1253 | color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); |
363e4e42 | 1254 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
2d764c78 EZ |
1255 | { |
1256 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1257 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1258 | { | |
1259 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1260 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1261 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1262 | } | |
1263 | status = 1; | |
1264 | } | |
a61c12d5 | 1265 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
2d764c78 | 1266 | /* We were called early during startup, and the colors are not |
a61c12d5 | 1267 | yet set up in tty-defined-color-alist. Don't return a failure |
2d764c78 EZ |
1268 | indication, since this produces the annoying "Unable to |
1269 | load color" messages in the *Messages* buffer. */ | |
1270 | status = 1; | |
1271 | } | |
f9d2fdc4 EZ |
1272 | if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) |
1273 | { | |
1274 | if (strcmp (color_name, "unspecified-fg") == 0) | |
1275 | color_idx = FACE_TTY_DEFAULT_FG_COLOR; | |
1276 | else if (strcmp (color_name, "unspecified-bg") == 0) | |
1277 | color_idx = FACE_TTY_DEFAULT_BG_COLOR; | |
1278 | } | |
1279 | ||
3b451f74 EZ |
1280 | if (color_idx != FACE_TTY_DEFAULT_COLOR) |
1281 | status = 1; | |
1282 | ||
3a28db80 | 1283 | color_def->pixel = color_idx; |
2d764c78 EZ |
1284 | color_def->red = red; |
1285 | color_def->green = green; | |
1286 | color_def->blue = blue; | |
1287 | ||
1288 | return status; | |
1289 | } | |
1290 | ||
08dc08dc GM |
1291 | |
1292 | /* Decide if color named COLOR_NAME is valid for the display | |
1293 | associated with the frame F; if so, return the rgb values in | |
1294 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1295 | |
1296 | This does the right thing for any type of frame. */ | |
08dc08dc | 1297 | |
2d764c78 EZ |
1298 | int |
1299 | defined_color (f, color_name, color_def, alloc) | |
1300 | struct frame *f; | |
1301 | char *color_name; | |
1302 | XColor *color_def; | |
1303 | int alloc; | |
1304 | { | |
1305 | if (!FRAME_WINDOW_P (f)) | |
1306 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1307 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1308 | else if (FRAME_X_P (f)) |
1309 | return x_defined_color (f, color_name, color_def, alloc); | |
1310 | #endif | |
1311 | #ifdef WINDOWSNT | |
1312 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1313 | return w32_defined_color (f, color_name, color_def, alloc); |
1314 | #endif | |
1315 | #ifdef macintosh | |
1316 | else if (FRAME_MAC_P (f)) | |
1317 | /* FIXME: mac_defined_color doesn't exist! */ | |
1318 | return mac_defined_color (f, color_name, color_def, alloc); | |
1319 | #endif | |
1320 | else | |
1321 | abort (); | |
1322 | } | |
1323 | ||
08dc08dc GM |
1324 | |
1325 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1326 | Lisp string. */ | |
2d764c78 EZ |
1327 | |
1328 | Lisp_Object | |
1329 | tty_color_name (f, idx) | |
1330 | struct frame *f; | |
1331 | int idx; | |
1332 | { | |
2d764c78 EZ |
1333 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1334 | { | |
a61c12d5 EZ |
1335 | Lisp_Object frame; |
1336 | Lisp_Object coldesc; | |
1337 | ||
1338 | XSETFRAME (frame, f); | |
1339 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1340 | |
1341 | if (!NILP (coldesc)) | |
1342 | return XCAR (coldesc); | |
1343 | } | |
1344 | #ifdef MSDOS | |
1345 | /* We can have an MSDOG frame under -nw for a short window of | |
1346 | opportunity before internal_terminal_init is called. DTRT. */ | |
1347 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1348 | return msdos_stdcolor_name (idx); | |
1349 | #endif | |
1350 | ||
ef917393 EZ |
1351 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1352 | return build_string (unspecified_fg); | |
1353 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1354 | return build_string (unspecified_bg); | |
c3cee013 JR |
1355 | |
1356 | #ifdef WINDOWSNT | |
1357 | return vga_stdcolor_name (idx); | |
1358 | #endif | |
1359 | ||
ef917393 | 1360 | return Qunspecified; |
2d764c78 | 1361 | } |
82641697 | 1362 | |
08dc08dc | 1363 | |
82641697 GM |
1364 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
1365 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1366 | ||
1367 | static int | |
1368 | face_color_gray_p (f, color_name) | |
1369 | struct frame *f; | |
1370 | char *color_name; | |
1371 | { | |
1372 | XColor color; | |
1373 | int gray_p; | |
1374 | ||
1375 | if (defined_color (f, color_name, &color, 0)) | |
1376 | gray_p = ((abs (color.red - color.green) | |
1377 | < max (color.red, color.green) / 20) | |
1378 | && (abs (color.green - color.blue) | |
1379 | < max (color.green, color.blue) / 20) | |
1380 | && (abs (color.blue - color.red) | |
1381 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1382 | else |
82641697 | 1383 | gray_p = 0; |
178c5d9c | 1384 | |
82641697 | 1385 | return gray_p; |
87485d6f | 1386 | } |
87485d6f | 1387 | |
cb637678 | 1388 | |
82641697 GM |
1389 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1390 | BACKGROUND_P non-zero means the color will be used as background | |
1391 | color. */ | |
1392 | ||
1393 | static int | |
1394 | face_color_supported_p (f, color_name, background_p) | |
1395 | struct frame *f; | |
1396 | char *color_name; | |
1397 | int background_p; | |
1398 | { | |
1399 | Lisp_Object frame; | |
2d764c78 | 1400 | XColor not_used; |
82641697 GM |
1401 | |
1402 | XSETFRAME (frame, f); | |
8affcced KH |
1403 | return (FRAME_WINDOW_P (f) |
1404 | ? (!NILP (Fxw_display_color_p (frame)) | |
1405 | || xstricmp (color_name, "black") == 0 | |
1406 | || xstricmp (color_name, "white") == 0 | |
1407 | || (background_p | |
1408 | && face_color_gray_p (f, color_name)) | |
1409 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1410 | && face_color_gray_p (f, color_name))) | |
1411 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1412 | } |
82641697 GM |
1413 | |
1414 | ||
da47150d | 1415 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
82641697 GM |
1416 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ |
1417 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1418 | If FRAME is nil or omitted, use the selected frame.") | |
1419 | (color, frame) | |
1420 | Lisp_Object color, frame; | |
cb637678 | 1421 | { |
2d764c78 EZ |
1422 | struct frame *f; |
1423 | ||
1424 | CHECK_FRAME (frame, 0); | |
82641697 | 1425 | CHECK_STRING (color, 0); |
2d764c78 | 1426 | f = XFRAME (frame); |
82641697 GM |
1427 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1428 | } | |
660ed669 | 1429 | |
fffc2367 | 1430 | |
da47150d EZ |
1431 | DEFUN ("color-supported-p", Fcolor_supported_p, |
1432 | Scolor_supported_p, 2, 3, 0, | |
82641697 GM |
1433 | "Return non-nil if COLOR can be displayed on FRAME.\n\ |
1434 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1435 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1436 | COLOR must be a valid color name.") | |
da47150d | 1437 | (color, frame, background_p) |
82641697 GM |
1438 | Lisp_Object frame, color, background_p; |
1439 | { | |
2d764c78 EZ |
1440 | struct frame *f; |
1441 | ||
1442 | CHECK_FRAME (frame, 0); | |
82641697 | 1443 | CHECK_STRING (color, 0); |
2d764c78 | 1444 | f = XFRAME (frame); |
82641697 GM |
1445 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1446 | return Qt; | |
1447 | return Qnil; | |
1448 | } | |
7b37f67b | 1449 | |
08dc08dc | 1450 | |
82641697 GM |
1451 | /* Load color with name NAME for use by face FACE on frame F. |
1452 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1453 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1454 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1455 | pixel color. If color cannot be loaded, display a message, and | |
1456 | return the foreground, background or underline color of F, but | |
1457 | record that fact in flags of the face so that we don't try to free | |
1458 | these colors. */ | |
1459 | ||
44747bd0 | 1460 | unsigned long |
82641697 GM |
1461 | load_color (f, face, name, target_index) |
1462 | struct frame *f; | |
1463 | struct face *face; | |
1464 | Lisp_Object name; | |
1465 | enum lface_attribute_index target_index; | |
1466 | { | |
1467 | XColor color; | |
178c5d9c | 1468 | |
82641697 GM |
1469 | xassert (STRINGP (name)); |
1470 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1471 | || target_index == LFACE_BACKGROUND_INDEX | |
1472 | || target_index == LFACE_UNDERLINE_INDEX | |
1473 | || target_index == LFACE_OVERLINE_INDEX | |
1474 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1475 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1476 | |
82641697 GM |
1477 | /* if the color map is full, defined_color will return a best match |
1478 | to the values in an existing cell. */ | |
1479 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1480 | { | |
2d764c78 | 1481 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1482 | |
82641697 | 1483 | switch (target_index) |
1120eb5e | 1484 | { |
82641697 GM |
1485 | case LFACE_FOREGROUND_INDEX: |
1486 | face->foreground_defaulted_p = 1; | |
1487 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1488 | break; | |
178c5d9c | 1489 | |
82641697 GM |
1490 | case LFACE_BACKGROUND_INDEX: |
1491 | face->background_defaulted_p = 1; | |
1492 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1493 | break; | |
178c5d9c | 1494 | |
82641697 GM |
1495 | case LFACE_UNDERLINE_INDEX: |
1496 | face->underline_defaulted_p = 1; | |
1497 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1498 | break; | |
178c5d9c | 1499 | |
82641697 GM |
1500 | case LFACE_OVERLINE_INDEX: |
1501 | face->overline_color_defaulted_p = 1; | |
1502 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1503 | break; |
178c5d9c | 1504 | |
82641697 GM |
1505 | case LFACE_STRIKE_THROUGH_INDEX: |
1506 | face->strike_through_color_defaulted_p = 1; | |
1507 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1508 | break; | |
178c5d9c | 1509 | |
82641697 GM |
1510 | case LFACE_BOX_INDEX: |
1511 | face->box_color_defaulted_p = 1; | |
1512 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1513 | break; | |
1514 | ||
1515 | default: | |
1516 | abort (); | |
1120eb5e | 1517 | } |
82641697 GM |
1518 | } |
1519 | #if GLYPH_DEBUG | |
1520 | else | |
1521 | ++ncolors_allocated; | |
1522 | #endif | |
178c5d9c | 1523 | |
82641697 GM |
1524 | return color.pixel; |
1525 | } | |
1120eb5e | 1526 | |
08dc08dc | 1527 | |
c3cee013 | 1528 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1529 | |
82641697 GM |
1530 | /* Load colors for face FACE which is used on frame F. Colors are |
1531 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1532 | of ATTRS. If the background color specified is not supported on F, | |
1533 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1534 | ||
1535 | static void | |
1536 | load_face_colors (f, face, attrs) | |
1537 | struct frame *f; | |
1538 | struct face *face; | |
1539 | Lisp_Object *attrs; | |
1540 | { | |
1541 | Lisp_Object fg, bg; | |
1542 | ||
1543 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1544 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1545 | ||
1546 | /* Swap colors if face is inverse-video. */ | |
1547 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1548 | { | |
1549 | Lisp_Object tmp; | |
1550 | tmp = fg; | |
1551 | fg = bg; | |
1552 | bg = tmp; | |
1553 | } | |
1554 | ||
1555 | /* Check for support for foreground, not for background because | |
1556 | face_color_supported_p is smart enough to know that grays are | |
1557 | "supported" as background because we are supposed to use stipple | |
1558 | for them. */ | |
1559 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1560 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1561 | { |
1562 | x_destroy_bitmap (f, face->stipple); | |
1563 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1564 | &face->pixmap_w, &face->pixmap_h); | |
1565 | } | |
82641697 | 1566 | |
be8a72f4 | 1567 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1568 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1569 | } |
1570 | ||
660ed669 | 1571 | |
82641697 | 1572 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1573 | |
cb637678 | 1574 | void |
82641697 | 1575 | unload_color (f, pixel) |
cb637678 | 1576 | struct frame *f; |
82641697 | 1577 | unsigned long pixel; |
cb637678 | 1578 | { |
c3cee013 | 1579 | #ifdef HAVE_X_WINDOWS |
660ed669 | 1580 | BLOCK_INPUT; |
1f847cf8 | 1581 | x_free_colors (f, &pixel, 1); |
82641697 | 1582 | UNBLOCK_INPUT; |
c3cee013 | 1583 | #endif |
82641697 GM |
1584 | } |
1585 | ||
1586 | ||
1587 | /* Free colors allocated for FACE. */ | |
1588 | ||
1589 | static void | |
1590 | free_face_colors (f, face) | |
1591 | struct frame *f; | |
1592 | struct face *face; | |
1593 | { | |
c3cee013 | 1594 | #ifdef HAVE_X_WINDOWS |
08dc08dc | 1595 | BLOCK_INPUT; |
178c5d9c | 1596 | |
08dc08dc GM |
1597 | if (!face->foreground_defaulted_p) |
1598 | { | |
1599 | x_free_colors (f, &face->foreground, 1); | |
1600 | IF_DEBUG (--ncolors_allocated); | |
1601 | } | |
178c5d9c | 1602 | |
08dc08dc GM |
1603 | if (!face->background_defaulted_p) |
1604 | { | |
1605 | x_free_colors (f, &face->background, 1); | |
1606 | IF_DEBUG (--ncolors_allocated); | |
1607 | } | |
82641697 | 1608 | |
08dc08dc GM |
1609 | if (face->underline_p |
1610 | && !face->underline_defaulted_p) | |
1611 | { | |
1612 | x_free_colors (f, &face->underline_color, 1); | |
1613 | IF_DEBUG (--ncolors_allocated); | |
1614 | } | |
82641697 | 1615 | |
08dc08dc GM |
1616 | if (face->overline_p |
1617 | && !face->overline_color_defaulted_p) | |
1618 | { | |
1619 | x_free_colors (f, &face->overline_color, 1); | |
1620 | IF_DEBUG (--ncolors_allocated); | |
1621 | } | |
82641697 | 1622 | |
08dc08dc GM |
1623 | if (face->strike_through_p |
1624 | && !face->strike_through_color_defaulted_p) | |
1625 | { | |
1626 | x_free_colors (f, &face->strike_through_color, 1); | |
1627 | IF_DEBUG (--ncolors_allocated); | |
1628 | } | |
82641697 | 1629 | |
08dc08dc GM |
1630 | if (face->box != FACE_NO_BOX |
1631 | && !face->box_color_defaulted_p) | |
1632 | { | |
1633 | x_free_colors (f, &face->box_color, 1); | |
1634 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1635 | } |
08dc08dc GM |
1636 | |
1637 | UNBLOCK_INPUT; | |
2d764c78 | 1638 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1639 | } |
08dc08dc | 1640 | |
c3cee013 | 1641 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1642 | |
1643 | ||
1644 | \f | |
1645 | /*********************************************************************** | |
1646 | XLFD Font Names | |
1647 | ***********************************************************************/ | |
1648 | ||
1649 | /* An enumerator for each field of an XLFD font name. */ | |
1650 | ||
1651 | enum xlfd_field | |
1652 | { | |
1653 | XLFD_FOUNDRY, | |
1654 | XLFD_FAMILY, | |
1655 | XLFD_WEIGHT, | |
1656 | XLFD_SLANT, | |
1657 | XLFD_SWIDTH, | |
1658 | XLFD_ADSTYLE, | |
1659 | XLFD_PIXEL_SIZE, | |
1660 | XLFD_POINT_SIZE, | |
1661 | XLFD_RESX, | |
1662 | XLFD_RESY, | |
1663 | XLFD_SPACING, | |
1664 | XLFD_AVGWIDTH, | |
1665 | XLFD_REGISTRY, | |
1666 | XLFD_ENCODING, | |
1667 | XLFD_LAST | |
1668 | }; | |
1669 | ||
178c5d9c | 1670 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1671 | the XLFD specification. */ |
1672 | ||
1673 | enum xlfd_slant | |
1674 | { | |
1675 | XLFD_SLANT_UNKNOWN, | |
1676 | XLFD_SLANT_ROMAN, | |
1677 | XLFD_SLANT_ITALIC, | |
1678 | XLFD_SLANT_OBLIQUE, | |
1679 | XLFD_SLANT_REVERSE_ITALIC, | |
1680 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1681 | XLFD_SLANT_OTHER | |
1682 | }; | |
1683 | ||
1684 | /* Relative font weight according to XLFD documentation. */ | |
1685 | ||
1686 | enum xlfd_weight | |
1687 | { | |
1688 | XLFD_WEIGHT_UNKNOWN, | |
1689 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1690 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1691 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1692 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1693 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1694 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1695 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1696 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1697 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1698 | }; | |
1699 | ||
1700 | /* Relative proportionate width. */ | |
1701 | ||
1702 | enum xlfd_swidth | |
1703 | { | |
1704 | XLFD_SWIDTH_UNKNOWN, | |
1705 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1706 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1707 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1708 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1709 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1710 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1711 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1712 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1713 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1714 | }; | |
1715 | ||
1716 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1717 | names to numeric and symbolic values. */ | |
1718 | ||
1719 | struct table_entry | |
1720 | { | |
1721 | char *name; | |
1722 | int numeric; | |
1723 | Lisp_Object *symbol; | |
1724 | }; | |
1725 | ||
1726 | /* Table of XLFD slant names and their numeric and symbolic | |
1727 | representations. This table must be sorted by slant names in | |
1728 | ascending order. */ | |
1729 | ||
1730 | static struct table_entry slant_table[] = | |
1731 | { | |
1732 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1733 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1734 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1735 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1736 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1737 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1738 | }; | |
1739 | ||
1740 | /* Table of XLFD weight names. This table must be sorted by weight | |
1741 | names in ascending order. */ | |
1742 | ||
1743 | static struct table_entry weight_table[] = | |
1744 | { | |
1745 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1746 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1747 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1748 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1749 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1750 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1751 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1752 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1753 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1754 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1755 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1756 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1757 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1758 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1759 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1760 | }; | |
1761 | ||
1762 | /* Table of XLFD width names. This table must be sorted by width | |
1763 | names in ascending order. */ | |
1764 | ||
1765 | static struct table_entry swidth_table[] = | |
1766 | { | |
1767 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1768 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1769 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1770 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1771 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1772 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1773 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1774 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1775 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1776 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1777 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1778 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1779 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1780 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1781 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1782 | }; | |
1783 | ||
1784 | /* Structure used to hold the result of splitting font names in XLFD | |
1785 | format into their fields. */ | |
1786 | ||
1787 | struct font_name | |
1788 | { | |
1789 | /* The original name which is modified destructively by | |
1790 | split_font_name. The pointer is kept here to be able to free it | |
1791 | if it was allocated from the heap. */ | |
1792 | char *name; | |
1793 | ||
1794 | /* Font name fields. Each vector element points into `name' above. | |
1795 | Fields are NUL-terminated. */ | |
1796 | char *fields[XLFD_LAST]; | |
1797 | ||
1798 | /* Numeric values for those fields that interest us. See | |
1799 | split_font_name for which these are. */ | |
1800 | int numeric[XLFD_LAST]; | |
1801 | }; | |
1802 | ||
1803 | /* The frame in effect when sorting font names. Set temporarily in | |
1804 | sort_fonts so that it is available in font comparison functions. */ | |
1805 | ||
1806 | static struct frame *font_frame; | |
1807 | ||
1808 | /* Order by which font selection chooses fonts. The default values | |
1809 | mean `first, find a best match for the font width, then for the | |
1810 | font height, then for weight, then for slant.' This variable can be | |
1811 | set via set-face-font-sort-order. */ | |
1812 | ||
1813 | static int font_sort_order[4]; | |
1814 | ||
1815 | ||
1816 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1817 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1818 | is a pointer to the matching table entry or null if no table entry | |
1819 | matches. */ | |
1820 | ||
1821 | static struct table_entry * | |
1822 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1823 | struct table_entry *table; | |
1824 | int dim; | |
1825 | struct font_name *font; | |
1826 | int field_index; | |
1827 | { | |
1828 | /* Function split_font_name converts fields to lower-case, so there | |
1829 | is no need to use xstrlwr or xstricmp here. */ | |
1830 | char *s = font->fields[field_index]; | |
1831 | int low, mid, high, cmp; | |
1832 | ||
1833 | low = 0; | |
1834 | high = dim - 1; | |
1835 | ||
1836 | while (low <= high) | |
1837 | { | |
1838 | mid = (low + high) / 2; | |
1839 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1840 | |
82641697 GM |
1841 | if (cmp < 0) |
1842 | low = mid + 1; | |
1843 | else if (cmp > 0) | |
1844 | high = mid - 1; | |
1845 | else | |
1846 | return table + mid; | |
1847 | } | |
1848 | ||
1849 | return NULL; | |
1850 | } | |
1851 | ||
1852 | ||
1853 | /* Return a numeric representation for font name field | |
1854 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1855 | has DIM entries. Value is the numeric value found or DFLT if no | |
1856 | table entry matches. This function is used to translate weight, | |
1857 | slant, and swidth names of XLFD font names to numeric values. */ | |
1858 | ||
1859 | static INLINE int | |
1860 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1861 | struct table_entry *table; | |
1862 | int dim; | |
1863 | struct font_name *font; | |
1864 | int field_index; | |
1865 | int dflt; | |
1866 | { | |
1867 | struct table_entry *p; | |
1868 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1869 | return p ? p->numeric : dflt; | |
1870 | } | |
1871 | ||
1872 | ||
1873 | /* Return a symbolic representation for font name field | |
1874 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1875 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1876 | table entry matches. This function is used to translate weight, | |
1877 | slant, and swidth names of XLFD font names to symbols. */ | |
1878 | ||
1879 | static INLINE Lisp_Object | |
1880 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1881 | struct table_entry *table; | |
1882 | int dim; | |
1883 | struct font_name *font; | |
1884 | int field_index; | |
6fc556fd | 1885 | Lisp_Object dflt; |
82641697 GM |
1886 | { |
1887 | struct table_entry *p; | |
1888 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1889 | return p ? *p->symbol : dflt; | |
1890 | } | |
1891 | ||
1892 | ||
1893 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1894 | ||
1895 | static INLINE int | |
1896 | xlfd_numeric_slant (font) | |
1897 | struct font_name *font; | |
1898 | { | |
1899 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1900 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1901 | } | |
1902 | ||
1903 | ||
1904 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1905 | ||
1906 | static INLINE Lisp_Object | |
1907 | xlfd_symbolic_slant (font) | |
1908 | struct font_name *font; | |
1909 | { | |
1910 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1911 | font, XLFD_SLANT, Qnormal); | |
1912 | } | |
1913 | ||
1914 | ||
1915 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1916 | ||
1917 | static INLINE int | |
1918 | xlfd_numeric_weight (font) | |
1919 | struct font_name *font; | |
1920 | { | |
1921 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1922 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1923 | } | |
1924 | ||
1925 | ||
1926 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1927 | ||
1928 | static INLINE Lisp_Object | |
1929 | xlfd_symbolic_weight (font) | |
1930 | struct font_name *font; | |
1931 | { | |
1932 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1933 | font, XLFD_WEIGHT, Qnormal); | |
1934 | } | |
1935 | ||
1936 | ||
1937 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1938 | name fields are found in FONT. */ | |
1939 | ||
1940 | static INLINE int | |
1941 | xlfd_numeric_swidth (font) | |
1942 | struct font_name *font; | |
1943 | { | |
1944 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1945 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1946 | } | |
1947 | ||
1948 | ||
1949 | /* Return a symbolic value for the swidth of FONT. */ | |
1950 | ||
1951 | static INLINE Lisp_Object | |
1952 | xlfd_symbolic_swidth (font) | |
1953 | struct font_name *font; | |
1954 | { | |
1955 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1956 | font, XLFD_SWIDTH, Qnormal); | |
1957 | } | |
178c5d9c | 1958 | |
82641697 GM |
1959 | |
1960 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1961 | entries. Value is a pointer to the matching table entry or null if | |
1962 | no element of TABLE contains SYMBOL. */ | |
1963 | ||
1964 | static struct table_entry * | |
1965 | face_value (table, dim, symbol) | |
1966 | struct table_entry *table; | |
1967 | int dim; | |
1968 | Lisp_Object symbol; | |
1969 | { | |
1970 | int i; | |
1971 | ||
1972 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 1973 | |
82641697 GM |
1974 | for (i = 0; i < dim; ++i) |
1975 | if (EQ (*table[i].symbol, symbol)) | |
1976 | break; | |
1977 | ||
1978 | return i < dim ? table + i : NULL; | |
1979 | } | |
1980 | ||
1981 | ||
1982 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1983 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1984 | ||
1985 | static INLINE int | |
1986 | face_numeric_value (table, dim, symbol) | |
1987 | struct table_entry *table; | |
1988 | int dim; | |
1989 | Lisp_Object symbol; | |
1990 | { | |
1991 | struct table_entry *p = face_value (table, dim, symbol); | |
1992 | return p ? p->numeric : -1; | |
1993 | } | |
1994 | ||
1995 | ||
1996 | /* Return a numeric value representing the weight specified by Lisp | |
1997 | symbol WEIGHT. Value is one of the enumerators of enum | |
1998 | xlfd_weight. */ | |
1999 | ||
2000 | static INLINE int | |
2001 | face_numeric_weight (weight) | |
2002 | Lisp_Object weight; | |
2003 | { | |
2004 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
2005 | } | |
2006 | ||
2007 | ||
2008 | /* Return a numeric value representing the slant specified by Lisp | |
2009 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2010 | ||
2011 | static INLINE int | |
2012 | face_numeric_slant (slant) | |
2013 | Lisp_Object slant; | |
2014 | { | |
2015 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2016 | } | |
2017 | ||
2018 | ||
2019 | /* Return a numeric value representing the swidth specified by Lisp | |
2020 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2021 | ||
2022 | static int | |
2023 | face_numeric_swidth (width) | |
2024 | Lisp_Object width; | |
2025 | { | |
2026 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2027 | } | |
2028 | ||
2029 | ||
c3cee013 | 2030 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2031 | |
2032 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2033 | ||
2034 | static INLINE int | |
2035 | xlfd_fixed_p (font) | |
2036 | struct font_name *font; | |
2037 | { | |
2038 | /* Function split_font_name converts fields to lower-case, so there | |
2039 | is no need to use tolower here. */ | |
2040 | return *font->fields[XLFD_SPACING] != 'p'; | |
2041 | } | |
2042 | ||
2043 | ||
2044 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2045 | ||
2046 | The actual height of the font when displayed on F depends on the | |
2047 | resolution of both the font and frame. For example, a 10pt font | |
2048 | designed for a 100dpi display will display larger than 10pt on a | |
2049 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2050 | display one is using. For example, some intlfonts are available in | |
2051 | 72dpi versions, only.) | |
2052 | ||
2053 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2054 | be determined. */ | |
2055 | ||
2056 | static INLINE int | |
2057 | xlfd_point_size (f, font) | |
2058 | struct frame *f; | |
2059 | struct font_name *font; | |
2060 | { | |
2061 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2062 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
2063 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
2064 | int real_pt; | |
2065 | ||
2066 | if (font_resy == 0 || font_pt == 0) | |
2067 | real_pt = 0; | |
2068 | else | |
2069 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
2070 | ||
2071 | return real_pt; | |
2072 | } | |
2073 | ||
2074 | ||
39506348 KH |
2075 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2076 | of frame F. This function is used to guess a point size of font | |
2077 | when only the pixel height of the font is available. */ | |
2078 | ||
2079 | static INLINE int | |
2080 | pixel_point_size (f, pixel) | |
2081 | struct frame *f; | |
2082 | int pixel; | |
2083 | { | |
2084 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2085 | double real_pt; | |
2086 | int int_pt; | |
2087 | ||
2088 | /* As one inch is 72 points, 72/RESY gives the point size of one dot. */ | |
2089 | real_pt = pixel * 72 / resy; | |
2090 | int_pt = real_pt + 0.5; | |
2091 | ||
2092 | return int_pt; | |
2093 | } | |
2094 | ||
2095 | ||
82641697 GM |
2096 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2097 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2098 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2099 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2100 | zero if the font name doesn't have the format we expect. The | |
2101 | expected format is a font name that starts with a `-' and has | |
2102 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
2103 | forms of font names where certain field contents are enclosed in | |
2104 | square brackets. We don't support that, for now. */ | |
2105 | ||
2106 | static int | |
2107 | split_font_name (f, font, numeric_p) | |
2108 | struct frame *f; | |
2109 | struct font_name *font; | |
2110 | int numeric_p; | |
2111 | { | |
2112 | int i = 0; | |
2113 | int success_p; | |
2114 | ||
2115 | if (*font->name == '-') | |
2116 | { | |
2117 | char *p = xstrlwr (font->name) + 1; | |
2118 | ||
2119 | while (i < XLFD_LAST) | |
2120 | { | |
2121 | font->fields[i] = p; | |
2122 | ++i; | |
178c5d9c | 2123 | |
82641697 GM |
2124 | while (*p && *p != '-') |
2125 | ++p; | |
178c5d9c | 2126 | |
82641697 GM |
2127 | if (*p != '-') |
2128 | break; | |
178c5d9c | 2129 | |
82641697 GM |
2130 | *p++ = 0; |
2131 | } | |
2132 | } | |
2133 | ||
2134 | success_p = i == XLFD_LAST; | |
2135 | ||
2136 | /* If requested, and font name was in the expected format, | |
2137 | compute numeric values for some fields. */ | |
2138 | if (numeric_p && success_p) | |
2139 | { | |
2140 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2141 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2142 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2143 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2144 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
2145 | } | |
2146 | ||
2147 | return success_p; | |
2148 | } | |
2149 | ||
2150 | ||
2151 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2152 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2153 | |
82641697 GM |
2154 | static char * |
2155 | build_font_name (font) | |
2156 | struct font_name *font; | |
2157 | { | |
2158 | int i; | |
2159 | int size = 100; | |
2160 | char *font_name = (char *) xmalloc (size); | |
2161 | int total_length = 0; | |
2162 | ||
2163 | for (i = 0; i < XLFD_LAST; ++i) | |
2164 | { | |
2165 | /* Add 1 because of the leading `-'. */ | |
2166 | int len = strlen (font->fields[i]) + 1; | |
2167 | ||
2168 | /* Reallocate font_name if necessary. Add 1 for the final | |
2169 | NUL-byte. */ | |
2170 | if (total_length + len + 1 >= size) | |
2171 | { | |
2172 | int new_size = max (2 * size, size + len + 1); | |
2173 | int sz = new_size * sizeof *font_name; | |
2174 | font_name = (char *) xrealloc (font_name, sz); | |
2175 | size = new_size; | |
2176 | } | |
2177 | ||
2178 | font_name[total_length] = '-'; | |
2179 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2180 | total_length += len; | |
2181 | } | |
2182 | ||
2183 | font_name[total_length] = 0; | |
2184 | return font_name; | |
2185 | } | |
2186 | ||
2187 | ||
2188 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2189 | itself and all `name' fields in its elements. */ | |
2190 | ||
2191 | static INLINE void | |
2192 | free_font_names (fonts, n) | |
2193 | struct font_name *fonts; | |
2194 | int n; | |
2195 | { | |
2196 | while (n) | |
2197 | xfree (fonts[--n].name); | |
2198 | xfree (fonts); | |
2199 | } | |
2200 | ||
2201 | ||
2202 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2203 | elements using qsort and comparison function CMPFN. F is the frame | |
2204 | on which the fonts will be used. The global variable font_frame | |
2205 | is temporarily set to F to make it available in CMPFN. */ | |
2206 | ||
2207 | static INLINE void | |
2208 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2209 | struct frame *f; | |
2210 | struct font_name *fonts; | |
2211 | int nfonts; | |
2212 | int (*cmpfn) P_ ((const void *, const void *)); | |
2213 | { | |
2214 | font_frame = f; | |
2215 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2216 | font_frame = NULL; | |
2217 | } | |
2218 | ||
2219 | ||
2220 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2221 | display in x_display_list. FONTS is a pointer to a vector of | |
2222 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2223 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2224 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2225 | scalable fonts. | |
2226 | ||
2227 | For all fonts found, set FONTS[i].name to the name of the font, | |
2228 | allocated via xmalloc, and split font names into fields. Ignore | |
2229 | fonts that we can't parse. Value is the number of fonts found. | |
178c5d9c | 2230 | |
82641697 GM |
2231 | This is similar to x_list_fonts. The differences are: |
2232 | ||
2233 | 1. It avoids consing. | |
2234 | 2. It never calls XLoadQueryFont. */ | |
2235 | ||
2236 | static int | |
2237 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2238 | scalable_fonts_p) | |
2239 | struct frame *f; | |
2240 | char *pattern; | |
2241 | struct font_name *fonts; | |
2242 | int nfonts, try_alternatives_p; | |
2243 | int scalable_fonts_p; | |
2244 | { | |
82641697 GM |
2245 | int n, i, j; |
2246 | char **names; | |
c3cee013 JR |
2247 | #ifdef HAVE_X_WINDOWS |
2248 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
82641697 GM |
2249 | |
2250 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2251 | BLOCK_INPUT; | |
2252 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2253 | UNBLOCK_INPUT; | |
c3cee013 JR |
2254 | #endif |
2255 | #ifdef WINDOWSNT | |
2256 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be | |
2257 | better to do it the other way around. */ | |
2258 | Lisp_Object lfonts; | |
2259 | Lisp_Object lpattern, tem; | |
2260 | ||
2261 | n = 0; | |
2262 | names = NULL; | |
2263 | ||
2264 | lpattern = build_string (pattern); | |
2265 | ||
2266 | /* Get the list of fonts matching PATTERN. */ | |
2267 | BLOCK_INPUT; | |
2268 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); | |
2269 | UNBLOCK_INPUT; | |
2270 | ||
2271 | /* Count fonts returned */ | |
2272 | for (tem = lfonts; CONSP (tem); tem = XCDR (tem)) | |
2273 | n++; | |
2274 | ||
2275 | /* Allocate array. */ | |
2276 | if (n) | |
2277 | names = (char **) xmalloc (n * sizeof (char *)); | |
2278 | ||
2279 | /* Extract font names into char * array. */ | |
2280 | tem = lfonts; | |
2281 | for (i = 0; i < n; i++) | |
2282 | { | |
2283 | names[i] = XSTRING (XCAR (tem))->data; | |
2284 | tem = XCDR (tem); | |
2285 | } | |
2286 | #endif | |
82641697 GM |
2287 | |
2288 | if (names) | |
2289 | { | |
2290 | /* Make a copy of the font names we got from X, and | |
2291 | split them into fields. */ | |
2292 | for (i = j = 0; i < n; ++i) | |
2293 | { | |
2294 | /* Make a copy of the font name. */ | |
2295 | fonts[j].name = xstrdup (names[i]); | |
2296 | ||
2297 | /* Ignore fonts having a name that we can't parse. */ | |
2298 | if (!split_font_name (f, fonts + j, 1)) | |
2299 | xfree (fonts[j].name); | |
2300 | else if (font_scalable_p (fonts + j)) | |
2301 | { | |
2302 | #if SCALABLE_FONTS | |
2303 | if (!scalable_fonts_p | |
2304 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2305 | xfree (fonts[j].name); | |
2306 | else | |
2307 | ++j; | |
2308 | #else /* !SCALABLE_FONTS */ | |
2309 | /* Always ignore scalable fonts. */ | |
2310 | xfree (fonts[j].name); | |
2311 | #endif /* !SCALABLE_FONTS */ | |
2312 | } | |
2313 | else | |
2314 | ++j; | |
2315 | } | |
2316 | ||
2317 | n = j; | |
2318 | ||
c3cee013 | 2319 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
2320 | /* Free font names. */ |
2321 | BLOCK_INPUT; | |
2322 | XFreeFontNames (names); | |
2323 | UNBLOCK_INPUT; | |
c3cee013 | 2324 | #endif |
82641697 | 2325 | } |
178c5d9c | 2326 | |
82641697 GM |
2327 | |
2328 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2329 | if (n == 0 && try_alternatives_p) | |
2330 | { | |
2331 | Lisp_Object list = Valternate_fontname_alist; | |
2332 | ||
2333 | while (CONSP (list)) | |
2334 | { | |
2335 | Lisp_Object entry = XCAR (list); | |
2336 | if (CONSP (entry) | |
2337 | && STRINGP (XCAR (entry)) | |
2338 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2339 | break; | |
2340 | list = XCDR (list); | |
2341 | } | |
2342 | ||
2343 | if (CONSP (list)) | |
2344 | { | |
2345 | Lisp_Object patterns = XCAR (list); | |
2346 | Lisp_Object name; | |
178c5d9c | 2347 | |
82641697 GM |
2348 | while (CONSP (patterns) |
2349 | /* If list is screwed up, give up. */ | |
2350 | && (name = XCAR (patterns), | |
2351 | STRINGP (name)) | |
2352 | /* Ignore patterns equal to PATTERN because we tried that | |
2353 | already with no success. */ | |
2354 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2355 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2356 | fonts, nfonts, 0, | |
2357 | scalable_fonts_p), | |
2358 | n == 0))) | |
2359 | patterns = XCDR (patterns); | |
2360 | } | |
2361 | } | |
178c5d9c | 2362 | |
82641697 GM |
2363 | return n; |
2364 | } | |
178c5d9c | 2365 | |
82641697 GM |
2366 | |
2367 | /* Determine the first font matching PATTERN on frame F. Return in | |
2368 | *FONT the matching font name, split into fields. Value is non-zero | |
2369 | if a match was found. */ | |
2370 | ||
2371 | static int | |
2372 | first_font_matching (f, pattern, font) | |
2373 | struct frame *f; | |
2374 | char *pattern; | |
2375 | struct font_name *font; | |
2376 | { | |
2377 | int nfonts = 100; | |
2378 | struct font_name *fonts; | |
2379 | ||
2380 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2381 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2382 | ||
2383 | if (nfonts > 0) | |
2384 | { | |
2385 | bcopy (&fonts[0], font, sizeof *font); | |
178c5d9c | 2386 | |
82641697 GM |
2387 | fonts[0].name = NULL; |
2388 | free_font_names (fonts, nfonts); | |
2389 | } | |
2390 | ||
2391 | return nfonts > 0; | |
2392 | } | |
2393 | ||
2394 | ||
2395 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2396 | using comparison function CMPFN. Value is the number of fonts | |
2397 | found. If value is non-zero, *FONTS is set to a vector of | |
2398 | font_name structures allocated from the heap containing matching | |
2399 | fonts. Each element of *FONTS contains a name member that is also | |
2400 | allocated from the heap. Font names in these structures are split | |
2401 | into fields. Use free_font_names to free such an array. */ | |
2402 | ||
2403 | static int | |
2404 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2405 | struct frame *f; | |
2406 | char *pattern; | |
2407 | int (*cmpfn) P_ ((const void *, const void *)); | |
2408 | struct font_name **fonts; | |
2409 | { | |
2410 | int nfonts; | |
178c5d9c | 2411 | |
82641697 | 2412 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c GM |
2413 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2414 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2415 | nfonts = XFASTINT (Vfont_list_limit); | |
178c5d9c | 2416 | |
82641697 GM |
2417 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
2418 | #if SCALABLE_FONTS | |
2419 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); | |
2420 | #else | |
2421 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 0); | |
2422 | #endif | |
178c5d9c SS |
2423 | |
2424 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2425 | fonts were found, make sure to set *FONTS to null. */ |
2426 | if (nfonts) | |
2427 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2428 | else | |
2429 | { | |
2430 | xfree (*fonts); | |
2431 | *fonts = NULL; | |
2432 | } | |
2433 | ||
2434 | return nfonts; | |
2435 | } | |
2436 | ||
2437 | ||
2438 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2439 | strcmp. Sort order is given by the global variable | |
2440 | font_sort_order. Font names are sorted so that, everything else | |
2441 | being equal, fonts with a resolution closer to that of the frame on | |
2442 | which they are used are listed first. The global variable | |
2443 | font_frame is the frame on which we operate. */ | |
2444 | ||
2445 | static int | |
2446 | cmp_font_names (a, b) | |
2447 | const void *a, *b; | |
2448 | { | |
2449 | struct font_name *x = (struct font_name *) a; | |
2450 | struct font_name *y = (struct font_name *) b; | |
2451 | int cmp; | |
2452 | ||
2453 | /* All strings have been converted to lower-case by split_font_name, | |
2454 | so we can use strcmp here. */ | |
2455 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2456 | if (cmp == 0) | |
2457 | { | |
2458 | int i; | |
178c5d9c | 2459 | |
82641697 GM |
2460 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2461 | { | |
2462 | int j = font_sort_order[i]; | |
2463 | cmp = x->numeric[j] - y->numeric[j]; | |
2464 | } | |
2465 | ||
2466 | if (cmp == 0) | |
2467 | { | |
2468 | /* Everything else being equal, we prefer fonts with an | |
2469 | y-resolution closer to that of the frame. */ | |
2470 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2471 | int x_resy = x->numeric[XLFD_RESY]; | |
2472 | int y_resy = y->numeric[XLFD_RESY]; | |
2473 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2474 | } | |
2475 | } | |
2476 | ||
2477 | return cmp; | |
2478 | } | |
2479 | ||
2480 | ||
2481 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2482 | is non-nil list fonts matching that pattern. Otherwise, if |
2483 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2484 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2485 | structures allocated from the heap containing the fonts found. | |
2486 | Value is the number of fonts found. */ | |
82641697 GM |
2487 | |
2488 | static int | |
39506348 | 2489 | font_list (f, pattern, family, registry, fonts) |
82641697 | 2490 | struct frame *f; |
39506348 | 2491 | Lisp_Object pattern, family, registry; |
82641697 GM |
2492 | struct font_name **fonts; |
2493 | { | |
39506348 KH |
2494 | char *pattern_str, *family_str, *registry_str; |
2495 | ||
2496 | if (NILP (pattern)) | |
82641697 | 2497 | { |
39506348 KH |
2498 | family_str = (NILP (family) ? "*" : (char *) XSTRING (family)->data); |
2499 | registry_str = (NILP (registry) ? "*" : (char *) XSTRING (registry)->data); | |
178c5d9c | 2500 | |
39506348 | 2501 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2502 | + strlen (registry_str) |
2503 | + 10); | |
2504 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2505 | strcat (pattern_str, family_str); | |
2506 | strcat (pattern_str, "-*-"); | |
2507 | strcat (pattern_str, registry_str); | |
2508 | if (!index (registry_str, '-')) | |
2509 | { | |
2510 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2511 | strcat (pattern_str, "-*"); | |
2512 | else | |
2513 | strcat (pattern_str, "*-*"); | |
2514 | } | |
82641697 | 2515 | } |
39506348 KH |
2516 | else |
2517 | pattern_str = (char *) XSTRING (pattern)->data; | |
178c5d9c | 2518 | |
39506348 | 2519 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2520 | } |
2521 | ||
2522 | ||
2523 | /* Remove elements from LIST whose cars are `equal'. Called from | |
92610620 | 2524 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2525 | entries. */ |
2526 | ||
2527 | static void | |
2528 | remove_duplicates (list) | |
2529 | Lisp_Object list; | |
2530 | { | |
2531 | Lisp_Object tail = list; | |
178c5d9c | 2532 | |
82641697 GM |
2533 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2534 | { | |
2535 | Lisp_Object next = XCDR (tail); | |
2536 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2537 | XCDR (tail) = XCDR (next); | |
2538 | else | |
2539 | tail = XCDR (tail); | |
2540 | } | |
2541 | } | |
2542 | ||
2543 | ||
92610620 | 2544 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
82641697 GM |
2545 | "Return a list of available fonts of family FAMILY on FRAME.\n\ |
2546 | If FAMILY is omitted or nil, list all families.\n\ | |
2547 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2548 | `?' and `*'.\n\ | |
2549 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2550 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2551 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2552 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2553 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2554 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2555 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2556 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2557 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2558 | The result list is sorted according to the current setting of\n\ |
2559 | the face font sort order.") | |
2560 | (family, frame) | |
2561 | Lisp_Object family, frame; | |
2562 | { | |
2563 | struct frame *f = check_x_frame (frame); | |
2564 | struct font_name *fonts; | |
2565 | int i, nfonts; | |
2566 | Lisp_Object result; | |
2567 | struct gcpro gcpro1; | |
82641697 | 2568 | |
39506348 KH |
2569 | if (!NILP (family)) |
2570 | CHECK_STRING (family, 1); | |
178c5d9c | 2571 | |
82641697 GM |
2572 | result = Qnil; |
2573 | GCPRO1 (result); | |
39506348 | 2574 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2575 | for (i = nfonts - 1; i >= 0; --i) |
2576 | { | |
057df17c GM |
2577 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2578 | char *tem; | |
82641697 | 2579 | |
82641697 GM |
2580 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2581 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2582 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2583 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2584 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2585 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2586 | tem = build_font_name (fonts + i); |
2587 | ASET (v, 6, build_string (tem)); | |
2588 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2589 | fonts[i].fields[XLFD_ENCODING]); | |
2590 | ASET (v, 7, build_string (tem)); | |
2591 | xfree (tem); | |
178c5d9c | 2592 | |
82641697 | 2593 | result = Fcons (v, result); |
82641697 GM |
2594 | } |
2595 | ||
2596 | remove_duplicates (result); | |
2597 | free_font_names (fonts, nfonts); | |
2598 | UNGCPRO; | |
2599 | return result; | |
2600 | } | |
2601 | ||
2602 | ||
2603 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2604 | 0, 1, 0, | |
2605 | "Return a list of available font families on FRAME.\n\ | |
2606 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2607 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2608 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2609 | are fixed-pitch.") | |
2610 | (frame) | |
2611 | Lisp_Object frame; | |
2612 | { | |
2613 | struct frame *f = check_x_frame (frame); | |
2614 | int nfonts, i; | |
2615 | struct font_name *fonts; | |
2616 | Lisp_Object result; | |
2617 | struct gcpro gcpro1; | |
057df17c GM |
2618 | int count = specpdl_ptr - specpdl; |
2619 | int limit; | |
2620 | ||
2621 | /* Let's consider all fonts. Increase the limit for matching | |
2622 | fonts until we have them all. */ | |
2623 | for (limit = 500;;) | |
2624 | { | |
2625 | specbind (intern ("font-list-limit"), make_number (limit)); | |
39506348 | 2626 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); |
178c5d9c | 2627 | |
057df17c GM |
2628 | if (nfonts == limit) |
2629 | { | |
2630 | free_font_names (fonts, nfonts); | |
2631 | limit *= 2; | |
2632 | } | |
2633 | else | |
2634 | break; | |
2635 | } | |
178c5d9c | 2636 | |
82641697 GM |
2637 | result = Qnil; |
2638 | GCPRO1 (result); | |
2639 | for (i = nfonts - 1; i >= 0; --i) | |
2640 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2641 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2642 | result); | |
2643 | ||
2644 | remove_duplicates (result); | |
2645 | free_font_names (fonts, nfonts); | |
2646 | UNGCPRO; | |
057df17c | 2647 | return unbind_to (count, result); |
82641697 GM |
2648 | } |
2649 | ||
2650 | ||
2651 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2652 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2653 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2654 | the same size as FACE on FRAME.\n\ | |
2655 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2656 | the * character matches any substring, and\n\ | |
2657 | the ? character matches any single character.\n\ | |
2658 | PATTERN is case-insensitive.\n\ | |
2659 | FACE is a face name--a symbol.\n\ | |
2660 | \n\ | |
2661 | The return value is a list of strings, suitable as arguments to\n\ | |
2662 | set-face-font.\n\ | |
2663 | \n\ | |
2664 | Fonts Emacs can't use may or may not be excluded\n\ | |
2665 | even if they match PATTERN and FACE.\n\ | |
2666 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2667 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2668 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2669 | occupied by a character of a font. In that case, return only fonts\n\ | |
2670 | the WIDTH times as wide as FACE on FRAME.") | |
2671 | (pattern, face, frame, maximum, width) | |
2672 | Lisp_Object pattern, face, frame, maximum, width; | |
2673 | { | |
2674 | struct frame *f; | |
2675 | int size; | |
2676 | int maxnames; | |
2677 | ||
2678 | check_x (); | |
2679 | CHECK_STRING (pattern, 0); | |
178c5d9c | 2680 | |
82641697 GM |
2681 | if (NILP (maximum)) |
2682 | maxnames = 2000; | |
2683 | else | |
2684 | { | |
2685 | CHECK_NATNUM (maximum, 0); | |
2686 | maxnames = XINT (maximum); | |
2687 | } | |
2688 | ||
2689 | if (!NILP (width)) | |
2690 | CHECK_NUMBER (width, 4); | |
2691 | ||
2692 | /* We can't simply call check_x_frame because this function may be | |
2693 | called before any frame is created. */ | |
2694 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 2695 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
2696 | { |
2697 | /* Perhaps we have not yet created any frame. */ | |
2698 | f = NULL; | |
2699 | face = Qnil; | |
2700 | } | |
2701 | ||
2702 | /* Determine the width standard for comparison with the fonts we find. */ | |
2703 | ||
2704 | if (NILP (face)) | |
2705 | size = 0; | |
2706 | else | |
2707 | { | |
2708 | /* This is of limited utility since it works with character | |
2709 | widths. Keep it for compatibility. --gerd. */ | |
39506348 | 2710 | int face_id = lookup_named_face (f, face, 0); |
82641697 GM |
2711 | struct face *face = FACE_FROM_ID (f, face_id); |
2712 | ||
2713 | if (face->font) | |
c3cee013 | 2714 | size = FONT_WIDTH (face->font); |
82641697 | 2715 | else |
c3cee013 | 2716 | size = FONT_WIDTH (FRAME_FONT (f)); |
82641697 GM |
2717 | |
2718 | if (!NILP (width)) | |
2719 | size *= XINT (width); | |
2720 | } | |
2721 | ||
2722 | { | |
2723 | Lisp_Object args[2]; | |
2724 | ||
2725 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2726 | if (f == NULL) | |
2727 | /* We don't have to check fontsets. */ | |
2728 | return args[0]; | |
2729 | args[1] = list_fontsets (f, pattern, size); | |
2730 | return Fnconc (2, args); | |
2731 | } | |
2732 | } | |
2733 | ||
c3cee013 | 2734 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2735 | |
2736 | ||
2737 | \f | |
2738 | /*********************************************************************** | |
2739 | Lisp Faces | |
2740 | ***********************************************************************/ | |
2741 | ||
2742 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2743 | ||
2744 | #define LFACE_FAMILY(LFACE) \ | |
2745 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2746 | #define LFACE_HEIGHT(LFACE) \ | |
2747 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2748 | #define LFACE_WEIGHT(LFACE) \ | |
2749 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2750 | #define LFACE_SLANT(LFACE) \ | |
2751 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2752 | #define LFACE_UNDERLINE(LFACE) \ | |
2753 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2754 | #define LFACE_INVERSE(LFACE) \ | |
2755 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2756 | #define LFACE_FOREGROUND(LFACE) \ | |
2757 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2758 | #define LFACE_BACKGROUND(LFACE) \ | |
2759 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2760 | #define LFACE_STIPPLE(LFACE) \ | |
2761 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2762 | #define LFACE_SWIDTH(LFACE) \ | |
2763 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2764 | #define LFACE_OVERLINE(LFACE) \ | |
2765 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2766 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2767 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2768 | #define LFACE_BOX(LFACE) \ | |
2769 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
39506348 KH |
2770 | #define LFACE_FONT(LFACE) \ |
2771 | XVECTOR (LFACE)->contents[LFACE_FONT_INDEX] | |
2c20458f MB |
2772 | #define LFACE_INHERIT(LFACE) \ |
2773 | XVECTOR (LFACE)->contents[LFACE_INHERIT_INDEX] | |
82641697 GM |
2774 | |
2775 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2776 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2777 | ||
2778 | #define LFACEP(LFACE) \ | |
2779 | (VECTORP (LFACE) \ | |
2780 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2781 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2782 | ||
178c5d9c | 2783 | |
82641697 GM |
2784 | #if GLYPH_DEBUG |
2785 | ||
2786 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2787 | ||
2788 | static void | |
2789 | check_lface_attrs (attrs) | |
2790 | Lisp_Object *attrs; | |
2791 | { | |
2792 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2793 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2794 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2795 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2796 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2c20458f MB |
2797 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
2798 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
2799 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
2800 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2801 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2802 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2803 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2804 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2805 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2806 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2807 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2808 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2809 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2810 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2811 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2812 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2813 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2814 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2815 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2816 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2817 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2818 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2819 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2820 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2821 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2822 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2823 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2c20458f MB |
2824 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2825 | || NILP (attrs[LFACE_INHERIT_INDEX]) | |
2826 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
2827 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
2828 | #ifdef HAVE_WINDOW_SYSTEM |
2829 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2830 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 2831 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 2832 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
2833 | || NILP (attrs[LFACE_FONT_INDEX]) |
2834 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
2835 | #endif |
2836 | } | |
2837 | ||
2838 | ||
2839 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2840 | ||
2841 | static void | |
2842 | check_lface (lface) | |
2843 | Lisp_Object lface; | |
2844 | { | |
2845 | if (!NILP (lface)) | |
2846 | { | |
2847 | xassert (LFACEP (lface)); | |
2848 | check_lface_attrs (XVECTOR (lface)->contents); | |
2849 | } | |
2850 | } | |
2851 | ||
2852 | #else /* GLYPH_DEBUG == 0 */ | |
2853 | ||
2854 | #define check_lface_attrs(attrs) (void) 0 | |
2855 | #define check_lface(lface) (void) 0 | |
2856 | ||
2857 | #endif /* GLYPH_DEBUG == 0 */ | |
2858 | ||
2859 | ||
39506348 | 2860 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
c7ae3284 GM |
2861 | to make it a symvol. If FACE_NAME is an alias for another face, |
2862 | return that face's name. */ | |
2863 | ||
2864 | static Lisp_Object | |
2865 | resolve_face_name (face_name) | |
2866 | Lisp_Object face_name; | |
2867 | { | |
2868 | Lisp_Object aliased; | |
178c5d9c | 2869 | |
c7ae3284 GM |
2870 | if (STRINGP (face_name)) |
2871 | face_name = intern (XSTRING (face_name)->data); | |
2872 | ||
2873 | for (;;) | |
2874 | { | |
2875 | aliased = Fget (face_name, Qface_alias); | |
2876 | if (NILP (aliased)) | |
2877 | break; | |
2878 | else | |
2879 | face_name = aliased; | |
2880 | } | |
2881 | ||
2882 | return face_name; | |
2883 | } | |
2884 | ||
2885 | ||
82641697 GM |
2886 | /* Return the face definition of FACE_NAME on frame F. F null means |
2887 | return the global definition. FACE_NAME may be a string or a | |
2888 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
92610620 GM |
2889 | text properties; ediff uses that). If FACE_NAME is an alias for |
2890 | another face, return that face's definition. If SIGNAL_P is | |
2891 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2892 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2893 | name. */ | |
82641697 GM |
2894 | |
2895 | static INLINE Lisp_Object | |
2896 | lface_from_face_name (f, face_name, signal_p) | |
2897 | struct frame *f; | |
2898 | Lisp_Object face_name; | |
2899 | int signal_p; | |
2900 | { | |
c7ae3284 | 2901 | Lisp_Object lface; |
82641697 | 2902 | |
c7ae3284 | 2903 | face_name = resolve_face_name (face_name); |
92610620 | 2904 | |
82641697 GM |
2905 | if (f) |
2906 | lface = assq_no_quit (face_name, f->face_alist); | |
2907 | else | |
2908 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2909 | ||
2910 | if (CONSP (lface)) | |
2911 | lface = XCDR (lface); | |
2912 | else if (signal_p) | |
2913 | signal_error ("Invalid face", face_name); | |
2914 | ||
2915 | check_lface (lface); | |
2916 | return lface; | |
2917 | } | |
2918 | ||
2919 | ||
2920 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2921 | frame F. Store the resulting attributes in ATTRS which must point | |
2922 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2923 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2924 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2925 | ||
2926 | static INLINE int | |
2927 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2928 | struct frame *f; | |
2929 | Lisp_Object face_name; | |
2930 | Lisp_Object *attrs; | |
2931 | int signal_p; | |
2932 | { | |
2933 | Lisp_Object lface; | |
2934 | int success_p; | |
2935 | ||
2936 | lface = lface_from_face_name (f, face_name, signal_p); | |
2937 | if (!NILP (lface)) | |
2938 | { | |
2939 | bcopy (XVECTOR (lface)->contents, attrs, | |
2940 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2941 | success_p = 1; | |
2942 | } | |
2943 | else | |
2944 | success_p = 0; | |
2945 | ||
2946 | return success_p; | |
2947 | } | |
2948 | ||
2949 | ||
2950 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2951 | specified, i.e. are non-nil. */ | |
2952 | ||
2953 | static int | |
2954 | lface_fully_specified_p (attrs) | |
2955 | Lisp_Object *attrs; | |
2956 | { | |
2957 | int i; | |
2958 | ||
2959 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
6288c62f GM |
2960 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX) |
2961 | if (UNSPECIFIEDP (attrs[i])) | |
2962 | break; | |
82641697 GM |
2963 | |
2964 | return i == LFACE_VECTOR_SIZE; | |
2965 | } | |
2966 | ||
c3cee013 | 2967 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 2968 | |
39506348 KH |
2969 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
2970 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
2971 | unspecified attributes of LFACE. The exception is `font' | |
2972 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
2973 | ||
2974 | If FONTNAME is not available on frame F, | |
2975 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
2976 | If the fullname is not in a valid XLFD format, | |
2977 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
2978 | in LFACE and return 1. | |
2979 | Otherwise, return 1. */ | |
178c5d9c | 2980 | |
82641697 | 2981 | static int |
39506348 | 2982 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
2983 | struct frame *f; |
2984 | Lisp_Object lface; | |
39506348 | 2985 | Lisp_Object fontname; |
3221576b | 2986 | int force_p, may_fail_p; |
82641697 GM |
2987 | { |
2988 | struct font_name font; | |
2989 | char *buffer; | |
2990 | int pt; | |
39506348 KH |
2991 | int have_xlfd_p; |
2992 | int fontset; | |
2993 | char *font_name = XSTRING (fontname)->data; | |
2994 | struct font_info *font_info; | |
82641697 | 2995 | |
39506348 KH |
2996 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
2997 | fontset = fs_query_fontset (fontname, 0); | |
2998 | if (fontset >= 0) | |
2999 | font_name = XSTRING (fontset_ascii (fontset))->data; | |
3000 | ||
3001 | /* Check if FONT_NAME is surely available on the system. Usually | |
3002 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
3003 | returns quickly. But, even if FONT_NAME is not yet cached, | |
3004 | caching it now is not futail because we anyway load the font | |
3005 | later. */ | |
3006 | BLOCK_INPUT; | |
3007 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
3008 | UNBLOCK_INPUT; | |
82641697 | 3009 | |
39506348 | 3010 | if (!font_info) |
3221576b GM |
3011 | { |
3012 | if (may_fail_p) | |
3013 | return 0; | |
39506348 | 3014 | abort (); |
3221576b | 3015 | } |
39506348 KH |
3016 | |
3017 | font.name = STRDUPA (font_info->full_name); | |
3018 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3019 | |
82641697 | 3020 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3021 | new frames would never take effect. If we couldn't get a font |
3022 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3023 | |
82641697 GM |
3024 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3025 | { | |
39506348 KH |
3026 | Lisp_Object val; |
3027 | if (have_xlfd_p) | |
3028 | { | |
3029 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3030 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3031 | + 2); | |
3032 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3033 | font.fields[XLFD_FAMILY]); | |
3034 | val = build_string (buffer); | |
3035 | } | |
3036 | else | |
3037 | val = build_string ("*"); | |
3038 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3039 | } |
3040 | ||
3041 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3042 | { | |
39506348 KH |
3043 | if (have_xlfd_p) |
3044 | pt = xlfd_point_size (f, &font); | |
3045 | else | |
3046 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3047 | xassert (pt > 0); |
3048 | LFACE_HEIGHT (lface) = make_number (pt); | |
3049 | } | |
3050 | ||
3051 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3052 | LFACE_SWIDTH (lface) |
3053 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 GM |
3054 | |
3055 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
39506348 KH |
3056 | LFACE_WEIGHT (lface) |
3057 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3058 | |
3059 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3060 | LFACE_SLANT (lface) |
3061 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3062 | |
39506348 | 3063 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3064 | |
82641697 GM |
3065 | return 1; |
3066 | } | |
c3cee013 | 3067 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3068 | |
3069 | ||
2c20458f MB |
3070 | /* Merges the face height FROM with the face height TO, and returns the |
3071 | merged height. If FROM is an invalid height, then INVALID is | |
3072 | returned instead. FROM may be a either an absolute face height or a | |
3073 | `relative' height, and TO must be an absolute height. The returned | |
3074 | value is always an absolute height. GCPRO is a lisp value that will | |
3075 | be protected from garbage-collection if this function makes a call | |
3076 | into lisp. */ | |
3077 | ||
3078 | Lisp_Object | |
3079 | merge_face_heights (from, to, invalid, gcpro) | |
3080 | Lisp_Object from, to, invalid, gcpro; | |
3081 | { | |
3082 | int result = 0; | |
3083 | ||
3084 | if (INTEGERP (from)) | |
3085 | result = XINT (from); | |
3086 | else if (NUMBERP (from)) | |
3087 | result = XFLOATINT (from) * XINT (to); | |
3088 | #if 0 /* Probably not so useful. */ | |
3089 | else if (CONSP (from) && CONSP (XCDR (from))) | |
3090 | { | |
3091 | if (EQ (XCAR(from), Qplus) || EQ (XCAR(from), Qminus)) | |
3092 | { | |
3093 | if (INTEGERP (XCAR (XCDR (from)))) | |
3094 | { | |
3095 | int inc = XINT (XCAR (XCDR (from))); | |
3096 | if (EQ (XCAR (from), Qminus)) | |
3097 | inc = -inc; | |
3098 | ||
3099 | result = XFASTINT (to); | |
3100 | if (result + inc > 0) | |
3101 | /* Note that `underflows' don't mean FROM is invalid, so | |
3102 | we just pin the result at TO if it would otherwise be | |
3103 | negative or 0. */ | |
3104 | result += inc; | |
3105 | } | |
3106 | } | |
3107 | } | |
3108 | #endif | |
3109 | else if (FUNCTIONP (from)) | |
3110 | { | |
3111 | /* Call function with current height as argument. | |
3112 | From is the new height. */ | |
3113 | Lisp_Object args[2], height; | |
3114 | struct gcpro gcpro1; | |
3115 | ||
3116 | GCPRO1 (gcpro); | |
3117 | ||
3118 | args[0] = from; | |
3119 | args[1] = to; | |
3120 | height = call_function (2, args); | |
3121 | ||
3122 | UNGCPRO; | |
3123 | ||
3124 | if (NUMBERP (height)) | |
3125 | result = XFLOATINT (height); | |
3126 | } | |
3127 | ||
3128 | if (result > 0) | |
3129 | return make_number (result); | |
3130 | else | |
3131 | return invalid; | |
3132 | } | |
3133 | ||
3134 | ||
3135 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3136 | store the resulting attributes in TO, which must be already be |
3137 | completely specified and contain only absolute attributes. Every | |
3138 | specified attribute of FROM overrides the corresponding attribute of | |
3139 | TO; relative attributes in FROM are merged with the absolute value in | |
3140 | TO and replace it. CYCLE_CHECK is used internally to detect loops in | |
3141 | face inheritance; it should be Qnil when called from other places. */ | |
82641697 GM |
3142 | |
3143 | static INLINE void | |
2c20458f MB |
3144 | merge_face_vectors (f, from, to, cycle_check) |
3145 | struct frame *f; | |
82641697 | 3146 | Lisp_Object *from, *to; |
2c20458f | 3147 | Lisp_Object cycle_check; |
82641697 GM |
3148 | { |
3149 | int i; | |
2c20458f MB |
3150 | |
3151 | /* If FROM inherits from some other faces, merge their attributes into | |
3152 | TO before merging FROM's direct attributes. Note that an :inherit | |
3153 | attribute of `unspecified' is the same as one of nil; we never | |
3154 | merge :inherit attributes, so nil is more correct, but lots of | |
3155 | other code uses `unspecified' as a generic value for face attributes. */ | |
3156 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3157 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
3158 | merge_face_inheritance (f, from[LFACE_INHERIT_INDEX], to, cycle_check); | |
3159 | ||
87188200 MB |
3160 | /* If TO specifies a :font attribute, and FROM specifies some |
3161 | font-related attribute, we need to clear TO's :font attribute | |
3162 | (because it will be inconsistent with whatever FROM specifies, and | |
3163 | FROM takes precedence). */ | |
3164 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3165 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3166 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3167 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3168 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
3169 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]))) | |
3170 | to[LFACE_FONT_INDEX] = Qnil; | |
3171 | ||
82641697 GM |
3172 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3173 | if (!UNSPECIFIEDP (from[i])) | |
2c20458f MB |
3174 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) |
3175 | to[i] = merge_face_heights (from[i], to[i], to[i], cycle_check); | |
3176 | else | |
3177 | to[i] = from[i]; | |
3178 | ||
3179 | /* TO is always an absolute face, which should inherit from nothing. | |
3180 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3181 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3182 | } | |
3183 | ||
6288c62f | 3184 | |
2c20458f MB |
3185 | /* Checks the `cycle check' variable CHECK to see if it indicates that |
3186 | EL is part of a cycle; CHECK must be either Qnil or a value returned | |
3187 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of | |
3188 | elements after which a cycle might be suspected; after that many | |
3189 | elements, this macro begins consing in order to keep more precise | |
3190 | track of elements. | |
3191 | ||
3192 | Returns NIL if a cycle was detected, otherwise a new value for CHECK | |
3193 | that includes EL. | |
3194 | ||
3195 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so | |
3196 | the caller should make sure that's ok. */ | |
6288c62f | 3197 | |
2c20458f MB |
3198 | #define CYCLE_CHECK(check, el, suspicious) \ |
3199 | (NILP (check) \ | |
3200 | ? make_number (0) \ | |
3201 | : INTEGERP (check) \ | |
3202 | ? (XFASTINT (check) < (suspicious) \ | |
3203 | ? make_number (XFASTINT (check) + 1) \ | |
3204 | : Fcons (el, Qnil)) \ | |
3205 | : Fmemq ((el), (check)) \ | |
3206 | ? Qnil \ | |
3207 | : Fcons ((el), (check))) | |
3208 | ||
87188200 MB |
3209 | |
3210 | /* Merge face attributes from the face on frame F whose name is | |
3211 | INHERITS, into the vector of face attributes TO; INHERITS may also be | |
3212 | a list of face names, in which case they are applied in order. | |
3213 | CYCLE_CHECK is used to detect loops in face inheritance. | |
3214 | Returns true if any of the inherited attributes are `font-related'. */ | |
3215 | ||
2c20458f MB |
3216 | static void |
3217 | merge_face_inheritance (f, inherit, to, cycle_check) | |
3218 | struct frame *f; | |
3219 | Lisp_Object inherit; | |
3220 | Lisp_Object *to; | |
3221 | Lisp_Object cycle_check; | |
3222 | { | |
3223 | if (SYMBOLP (inherit) && !EQ (inherit, Qunspecified)) | |
3224 | /* Inherit from the named face INHERIT. */ | |
3225 | { | |
3226 | Lisp_Object lface; | |
3227 | ||
3228 | /* Make sure we're not in an inheritance loop. */ | |
3229 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3230 | if (NILP (cycle_check)) | |
3231 | /* Cycle detected, ignore any further inheritance. */ | |
3232 | return; | |
3233 | ||
3234 | lface = lface_from_face_name (f, inherit, 0); | |
3235 | if (!NILP (lface)) | |
3236 | merge_face_vectors (f, XVECTOR (lface)->contents, to, cycle_check); | |
3237 | } | |
3238 | else if (CONSP (inherit)) | |
3239 | /* Handle a list of inherited faces by calling ourselves recursively | |
3240 | on each element. Note that we only do so for symbol elements, so | |
3241 | it's not possible to infinitely recurse. */ | |
3242 | { | |
3243 | while (CONSP (inherit)) | |
3244 | { | |
3245 | if (SYMBOLP (XCAR (inherit))) | |
3246 | merge_face_inheritance (f, XCAR (inherit), to, cycle_check); | |
3247 | ||
3248 | /* Check for a circular inheritance list. */ | |
3249 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3250 | if (NILP (cycle_check)) | |
3251 | /* Cycle detected. */ | |
3252 | break; | |
3253 | ||
3254 | inherit = XCDR (inherit); | |
3255 | } | |
3256 | } | |
82641697 GM |
3257 | } |
3258 | ||
3259 | ||
3260 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
3261 | is a face property, determine the resulting face attributes on | |
3262 | frame F, and store them in TO. PROP may be a single face | |
3263 | specification or a list of such specifications. Each face | |
3264 | specification can be | |
3265 | ||
3266 | 1. A symbol or string naming a Lisp face. | |
3267 | ||
3268 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3269 | KEYWORD is a face attribute name, and value is an appropriate value | |
3270 | for that attribute. | |
3271 | ||
3272 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3273 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3274 | for compatibility with 20.2. | |
3275 | ||
3276 | Face specifications earlier in lists take precedence over later | |
3277 | specifications. */ | |
178c5d9c | 3278 | |
82641697 GM |
3279 | static void |
3280 | merge_face_vector_with_property (f, to, prop) | |
3281 | struct frame *f; | |
3282 | Lisp_Object *to; | |
3283 | Lisp_Object prop; | |
3284 | { | |
3285 | if (CONSP (prop)) | |
3286 | { | |
3287 | Lisp_Object first = XCAR (prop); | |
178c5d9c | 3288 | |
82641697 GM |
3289 | if (EQ (first, Qforeground_color) |
3290 | || EQ (first, Qbackground_color)) | |
3291 | { | |
3292 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3293 | . COLOR). COLOR must be a string. */ | |
3294 | Lisp_Object color_name = XCDR (prop); | |
3295 | Lisp_Object color = first; | |
3296 | ||
3297 | if (STRINGP (color_name)) | |
3298 | { | |
3299 | if (EQ (color, Qforeground_color)) | |
3300 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3301 | else | |
3302 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3303 | } | |
3304 | else | |
1b8f7fbc | 3305 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
3306 | } |
3307 | else if (SYMBOLP (first) | |
3308 | && *XSYMBOL (first)->name->data == ':') | |
3309 | { | |
3310 | /* Assume this is the property list form. */ | |
3311 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
3312 | { | |
3313 | Lisp_Object keyword = XCAR (prop); | |
3314 | Lisp_Object value = XCAR (XCDR (prop)); | |
3315 | ||
3316 | if (EQ (keyword, QCfamily)) | |
3317 | { | |
3318 | if (STRINGP (value)) | |
3319 | to[LFACE_FAMILY_INDEX] = value; | |
3320 | else | |
1a948b17 | 3321 | add_to_log ("Invalid face font family", value, Qnil); |
82641697 GM |
3322 | } |
3323 | else if (EQ (keyword, QCheight)) | |
3324 | { | |
2c20458f MB |
3325 | Lisp_Object new_height = |
3326 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], | |
3327 | Qnil, Qnil); | |
3328 | ||
3329 | if (NILP (new_height)) | |
1a948b17 | 3330 | add_to_log ("Invalid face font height", value, Qnil); |
2c20458f MB |
3331 | else |
3332 | to[LFACE_HEIGHT_INDEX] = new_height; | |
82641697 GM |
3333 | } |
3334 | else if (EQ (keyword, QCweight)) | |
3335 | { | |
3336 | if (SYMBOLP (value) | |
3337 | && face_numeric_weight (value) >= 0) | |
3338 | to[LFACE_WEIGHT_INDEX] = value; | |
3339 | else | |
1a948b17 | 3340 | add_to_log ("Invalid face weight", value, Qnil); |
82641697 GM |
3341 | } |
3342 | else if (EQ (keyword, QCslant)) | |
3343 | { | |
3344 | if (SYMBOLP (value) | |
3345 | && face_numeric_slant (value) >= 0) | |
3346 | to[LFACE_SLANT_INDEX] = value; | |
3347 | else | |
1a948b17 | 3348 | add_to_log ("Invalid face slant", value, Qnil); |
82641697 GM |
3349 | } |
3350 | else if (EQ (keyword, QCunderline)) | |
3351 | { | |
3352 | if (EQ (value, Qt) | |
3353 | || NILP (value) | |
3354 | || STRINGP (value)) | |
3355 | to[LFACE_UNDERLINE_INDEX] = value; | |
3356 | else | |
1a948b17 | 3357 | add_to_log ("Invalid face underline", value, Qnil); |
82641697 GM |
3358 | } |
3359 | else if (EQ (keyword, QCoverline)) | |
3360 | { | |
3361 | if (EQ (value, Qt) | |
3362 | || NILP (value) | |
3363 | || STRINGP (value)) | |
3364 | to[LFACE_OVERLINE_INDEX] = value; | |
3365 | else | |
1a948b17 | 3366 | add_to_log ("Invalid face overline", value, Qnil); |
82641697 GM |
3367 | } |
3368 | else if (EQ (keyword, QCstrike_through)) | |
3369 | { | |
3370 | if (EQ (value, Qt) | |
3371 | || NILP (value) | |
3372 | || STRINGP (value)) | |
3373 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3374 | else | |
1a948b17 | 3375 | add_to_log ("Invalid face strike-through", value, Qnil); |
82641697 GM |
3376 | } |
3377 | else if (EQ (keyword, QCbox)) | |
3378 | { | |
3379 | if (EQ (value, Qt)) | |
3380 | value = make_number (1); | |
3381 | if (INTEGERP (value) | |
3382 | || STRINGP (value) | |
3383 | || CONSP (value) | |
3384 | || NILP (value)) | |
3385 | to[LFACE_BOX_INDEX] = value; | |
3386 | else | |
1a948b17 | 3387 | add_to_log ("Invalid face box", value, Qnil); |
82641697 GM |
3388 | } |
3389 | else if (EQ (keyword, QCinverse_video) | |
3390 | || EQ (keyword, QCreverse_video)) | |
3391 | { | |
3392 | if (EQ (value, Qt) || NILP (value)) | |
3393 | to[LFACE_INVERSE_INDEX] = value; | |
3394 | else | |
1a948b17 | 3395 | add_to_log ("Invalid face inverse-video", value, Qnil); |
82641697 GM |
3396 | } |
3397 | else if (EQ (keyword, QCforeground)) | |
3398 | { | |
3399 | if (STRINGP (value)) | |
3400 | to[LFACE_FOREGROUND_INDEX] = value; | |
3401 | else | |
1a948b17 | 3402 | add_to_log ("Invalid face foreground", value, Qnil); |
82641697 GM |
3403 | } |
3404 | else if (EQ (keyword, QCbackground)) | |
3405 | { | |
3406 | if (STRINGP (value)) | |
3407 | to[LFACE_BACKGROUND_INDEX] = value; | |
3408 | else | |
1a948b17 | 3409 | add_to_log ("Invalid face background", value, Qnil); |
82641697 GM |
3410 | } |
3411 | else if (EQ (keyword, QCstipple)) | |
3412 | { | |
3413 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3414 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3415 | if (!NILP (pixmap_p)) |
3416 | to[LFACE_STIPPLE_INDEX] = value; | |
3417 | else | |
1a948b17 | 3418 | add_to_log ("Invalid face stipple", value, Qnil); |
82641697 GM |
3419 | #endif |
3420 | } | |
3421 | else if (EQ (keyword, QCwidth)) | |
3422 | { | |
3423 | if (SYMBOLP (value) | |
3424 | && face_numeric_swidth (value) >= 0) | |
3425 | to[LFACE_SWIDTH_INDEX] = value; | |
3426 | else | |
1a948b17 | 3427 | add_to_log ("Invalid face width", value, Qnil); |
82641697 | 3428 | } |
2c20458f MB |
3429 | else if (EQ (keyword, QCinherit)) |
3430 | { | |
3431 | if (SYMBOLP (value)) | |
3432 | to[LFACE_INHERIT_INDEX] = value; | |
3433 | else | |
3434 | { | |
3435 | Lisp_Object tail; | |
3436 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3437 | if (!SYMBOLP (XCAR (tail))) | |
3438 | break; | |
3439 | if (NILP (tail)) | |
3440 | to[LFACE_INHERIT_INDEX] = value; | |
3441 | else | |
3442 | add_to_log ("Invalid face inherit", value, Qnil); | |
3443 | } | |
3444 | } | |
82641697 | 3445 | else |
1b8f7fbc | 3446 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3447 | keyword, Qnil); |
82641697 GM |
3448 | |
3449 | prop = XCDR (XCDR (prop)); | |
3450 | } | |
3451 | } | |
3452 | else | |
3453 | { | |
3454 | /* This is a list of face specs. Specifications at the | |
3455 | beginning of the list take precedence over later | |
3456 | specifications, so we have to merge starting with the | |
3457 | last specification. */ | |
3458 | Lisp_Object next = XCDR (prop); | |
3459 | if (!NILP (next)) | |
3460 | merge_face_vector_with_property (f, to, next); | |
3461 | merge_face_vector_with_property (f, to, first); | |
3462 | } | |
3463 | } | |
3464 | else | |
3465 | { | |
3466 | /* PROP ought to be a face name. */ | |
3467 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3468 | if (NILP (lface)) | |
1b8f7fbc | 3469 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 | 3470 | else |
2c20458f | 3471 | merge_face_vectors (f, XVECTOR (lface)->contents, to, Qnil); |
82641697 GM |
3472 | } |
3473 | } | |
3474 | ||
3475 | ||
3476 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3477 | Sinternal_make_lisp_face, 1, 2, 0, | |
3478 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
3479 | If FACE was not known as a face before, create a new one.\n\ | |
3480 | If optional argument FRAME is specified, make a frame-local face\n\ | |
3481 | for that frame. Otherwise operate on the global face definition.\n\ | |
3482 | Value is a vector of face attributes.") | |
3483 | (face, frame) | |
3484 | Lisp_Object face, frame; | |
3485 | { | |
3486 | Lisp_Object global_lface, lface; | |
3487 | struct frame *f; | |
3488 | int i; | |
3489 | ||
3490 | CHECK_SYMBOL (face, 0); | |
3491 | global_lface = lface_from_face_name (NULL, face, 0); | |
178c5d9c | 3492 | |
82641697 GM |
3493 | if (!NILP (frame)) |
3494 | { | |
3495 | CHECK_LIVE_FRAME (frame, 1); | |
3496 | f = XFRAME (frame); | |
3497 | lface = lface_from_face_name (f, face, 0); | |
3498 | } | |
3499 | else | |
3500 | f = NULL, lface = Qnil; | |
3501 | ||
3502 | /* Add a global definition if there is none. */ | |
3503 | if (NILP (global_lface)) | |
3504 | { | |
3505 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3506 | Qunspecified); | |
3507 | XVECTOR (global_lface)->contents[0] = Qface; | |
178c5d9c | 3508 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3509 | Vface_new_frame_defaults); |
178c5d9c | 3510 | |
82641697 GM |
3511 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3512 | face id to Lisp face is given by the vector lface_id_to_name. | |
3513 | The mapping from Lisp face to Lisp face id is given by the | |
3514 | property `face' of the Lisp face name. */ | |
3515 | if (next_lface_id == lface_id_to_name_size) | |
3516 | { | |
3517 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3518 | int sz = new_size * sizeof *lface_id_to_name; | |
3519 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3520 | lface_id_to_name_size = new_size; | |
3521 | } | |
178c5d9c | 3522 | |
82641697 GM |
3523 | lface_id_to_name[next_lface_id] = face; |
3524 | Fput (face, Qface, make_number (next_lface_id)); | |
3525 | ++next_lface_id; | |
3526 | } | |
3527 | else if (f == NULL) | |
3528 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3529 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
178c5d9c | 3530 | |
82641697 GM |
3531 | /* Add a frame-local definition. */ |
3532 | if (f) | |
3533 | { | |
3534 | if (NILP (lface)) | |
3535 | { | |
3536 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3537 | Qunspecified); | |
3538 | XVECTOR (lface)->contents[0] = Qface; | |
3539 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3540 | } | |
3541 | else | |
3542 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3543 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3544 | } | |
3545 | else | |
3546 | lface = global_lface; | |
3547 | ||
3548 | xassert (LFACEP (lface)); | |
3549 | check_lface (lface); | |
3550 | return lface; | |
3551 | } | |
3552 | ||
3553 | ||
3554 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3555 | Sinternal_lisp_face_p, 1, 2, 0, | |
3556 | "Return non-nil if FACE names a face.\n\ | |
3557 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3558 | existence of a frame-local face with name FACE on that frame.\n\ | |
3559 | Otherwise check for the existence of a global face.") | |
3560 | (face, frame) | |
3561 | Lisp_Object face, frame; | |
3562 | { | |
3563 | Lisp_Object lface; | |
178c5d9c | 3564 | |
82641697 GM |
3565 | if (!NILP (frame)) |
3566 | { | |
3567 | CHECK_LIVE_FRAME (frame, 1); | |
3568 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3569 | } | |
3570 | else | |
3571 | lface = lface_from_face_name (NULL, face, 0); | |
3572 | ||
3573 | return lface; | |
3574 | } | |
3575 | ||
3576 | ||
3577 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3578 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3579 | "Copy face FROM to TO.\n\ | |
3580 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3581 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3582 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3583 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3584 | \n\ | |
3585 | Value is TO.") | |
3586 | (from, to, frame, new_frame) | |
3587 | Lisp_Object from, to, frame, new_frame; | |
3588 | { | |
3589 | Lisp_Object lface, copy; | |
178c5d9c | 3590 | |
82641697 GM |
3591 | CHECK_SYMBOL (from, 0); |
3592 | CHECK_SYMBOL (to, 1); | |
3593 | if (NILP (new_frame)) | |
3594 | new_frame = frame; | |
3595 | ||
3596 | if (EQ (frame, Qt)) | |
3597 | { | |
3598 | /* Copy global definition of FROM. We don't make copies of | |
3599 | strings etc. because 20.2 didn't do it either. */ | |
3600 | lface = lface_from_face_name (NULL, from, 1); | |
3601 | copy = Finternal_make_lisp_face (to, Qnil); | |
3602 | } | |
3603 | else | |
3604 | { | |
3605 | /* Copy frame-local definition of FROM. */ | |
3606 | CHECK_LIVE_FRAME (frame, 2); | |
3607 | CHECK_LIVE_FRAME (new_frame, 3); | |
3608 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3609 | copy = Finternal_make_lisp_face (to, new_frame); | |
3610 | } | |
178c5d9c | 3611 | |
82641697 GM |
3612 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3613 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3614 | |
82641697 GM |
3615 | return to; |
3616 | } | |
3617 | ||
3618 | ||
3619 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3620 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3621 | "Set attribute ATTR of FACE to VALUE.\n\ | |
628436fb GM |
3622 | FRAME being a frame means change the face on that frame.\n\ |
3623 | FRAME nil means change change the face of the selected frame.\n\ | |
3624 | FRAME t means change the default for new frames.\n\ | |
3625 | FRAME 0 means change the face on all frames, and change the default\n\ | |
3626 | for new frames.") | |
82641697 GM |
3627 | (face, attr, value, frame) |
3628 | Lisp_Object face, attr, value, frame; | |
3629 | { | |
3630 | Lisp_Object lface; | |
3631 | Lisp_Object old_value = Qnil; | |
39506348 KH |
3632 | /* Set 1 if ATTR is QCfont. */ |
3633 | int font_attr_p = 0; | |
3634 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 3635 | int font_related_attr_p = 0; |
178c5d9c | 3636 | |
82641697 GM |
3637 | CHECK_SYMBOL (face, 0); |
3638 | CHECK_SYMBOL (attr, 1); | |
3639 | ||
c7ae3284 GM |
3640 | face = resolve_face_name (face); |
3641 | ||
628436fb GM |
3642 | /* If FRAME is 0, change face on all frames, and change the |
3643 | default for new frames. */ | |
3644 | if (INTEGERP (frame) && XINT (frame) == 0) | |
3645 | { | |
3646 | Lisp_Object tail; | |
3647 | FOR_EACH_FRAME (tail, frame) | |
3648 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
3649 | return Finternal_set_lisp_face_attribute (face, attr, value, Qt); | |
3650 | } | |
3651 | ||
82641697 GM |
3652 | /* Set lface to the Lisp attribute vector of FACE. */ |
3653 | if (EQ (frame, Qt)) | |
3654 | lface = lface_from_face_name (NULL, face, 1); | |
3655 | else | |
3656 | { | |
3657 | if (NILP (frame)) | |
c0617987 | 3658 | frame = selected_frame; |
178c5d9c | 3659 | |
82641697 GM |
3660 | CHECK_LIVE_FRAME (frame, 3); |
3661 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
178c5d9c | 3662 | |
82641697 GM |
3663 | /* If a frame-local face doesn't exist yet, create one. */ |
3664 | if (NILP (lface)) | |
3665 | lface = Finternal_make_lisp_face (face, frame); | |
3666 | } | |
3667 | ||
3668 | if (EQ (attr, QCfamily)) | |
3669 | { | |
3670 | if (!UNSPECIFIEDP (value)) | |
3671 | { | |
3672 | CHECK_STRING (value, 3); | |
3673 | if (XSTRING (value)->size == 0) | |
3674 | signal_error ("Invalid face family", value); | |
3675 | } | |
3676 | old_value = LFACE_FAMILY (lface); | |
3677 | LFACE_FAMILY (lface) = value; | |
3678 | font_related_attr_p = 1; | |
3679 | } | |
3680 | else if (EQ (attr, QCheight)) | |
3681 | { | |
3682 | if (!UNSPECIFIEDP (value)) | |
3683 | { | |
cec33c90 SM |
3684 | Lisp_Object test = |
3685 | (EQ (face, Qdefault) ? value : | |
3686 | /* The default face must have an absolute size, otherwise, we do | |
3687 | a test merge with a random height to see if VALUE's ok. */ | |
3688 | merge_face_heights (value, make_number(10), Qnil, Qnil)); | |
2c20458f MB |
3689 | |
3690 | if (!INTEGERP(test) || XINT(test) <= 0) | |
82641697 GM |
3691 | signal_error ("Invalid face height", value); |
3692 | } | |
2c20458f | 3693 | |
82641697 GM |
3694 | old_value = LFACE_HEIGHT (lface); |
3695 | LFACE_HEIGHT (lface) = value; | |
3696 | font_related_attr_p = 1; | |
3697 | } | |
3698 | else if (EQ (attr, QCweight)) | |
3699 | { | |
3700 | if (!UNSPECIFIEDP (value)) | |
3701 | { | |
3702 | CHECK_SYMBOL (value, 3); | |
3703 | if (face_numeric_weight (value) < 0) | |
3704 | signal_error ("Invalid face weight", value); | |
3705 | } | |
3706 | old_value = LFACE_WEIGHT (lface); | |
3707 | LFACE_WEIGHT (lface) = value; | |
3708 | font_related_attr_p = 1; | |
3709 | } | |
3710 | else if (EQ (attr, QCslant)) | |
3711 | { | |
3712 | if (!UNSPECIFIEDP (value)) | |
3713 | { | |
3714 | CHECK_SYMBOL (value, 3); | |
3715 | if (face_numeric_slant (value) < 0) | |
3716 | signal_error ("Invalid face slant", value); | |
3717 | } | |
3718 | old_value = LFACE_SLANT (lface); | |
3719 | LFACE_SLANT (lface) = value; | |
3720 | font_related_attr_p = 1; | |
3721 | } | |
3722 | else if (EQ (attr, QCunderline)) | |
3723 | { | |
3724 | if (!UNSPECIFIEDP (value)) | |
3725 | if ((SYMBOLP (value) | |
3726 | && !EQ (value, Qt) | |
3727 | && !EQ (value, Qnil)) | |
3728 | /* Underline color. */ | |
3729 | || (STRINGP (value) | |
3730 | && XSTRING (value)->size == 0)) | |
3731 | signal_error ("Invalid face underline", value); | |
178c5d9c | 3732 | |
82641697 GM |
3733 | old_value = LFACE_UNDERLINE (lface); |
3734 | LFACE_UNDERLINE (lface) = value; | |
3735 | } | |
3736 | else if (EQ (attr, QCoverline)) | |
3737 | { | |
3738 | if (!UNSPECIFIEDP (value)) | |
3739 | if ((SYMBOLP (value) | |
3740 | && !EQ (value, Qt) | |
3741 | && !EQ (value, Qnil)) | |
3742 | /* Overline color. */ | |
3743 | || (STRINGP (value) | |
3744 | && XSTRING (value)->size == 0)) | |
3745 | signal_error ("Invalid face overline", value); | |
178c5d9c | 3746 | |
82641697 GM |
3747 | old_value = LFACE_OVERLINE (lface); |
3748 | LFACE_OVERLINE (lface) = value; | |
3749 | } | |
3750 | else if (EQ (attr, QCstrike_through)) | |
3751 | { | |
3752 | if (!UNSPECIFIEDP (value)) | |
3753 | if ((SYMBOLP (value) | |
3754 | && !EQ (value, Qt) | |
3755 | && !EQ (value, Qnil)) | |
3756 | /* Strike-through color. */ | |
3757 | || (STRINGP (value) | |
3758 | && XSTRING (value)->size == 0)) | |
3759 | signal_error ("Invalid face strike-through", value); | |
178c5d9c | 3760 | |
82641697 GM |
3761 | old_value = LFACE_STRIKE_THROUGH (lface); |
3762 | LFACE_STRIKE_THROUGH (lface) = value; | |
3763 | } | |
3764 | else if (EQ (attr, QCbox)) | |
3765 | { | |
3766 | int valid_p; | |
178c5d9c | 3767 | |
82641697 GM |
3768 | /* Allow t meaning a simple box of width 1 in foreground color |
3769 | of the face. */ | |
3770 | if (EQ (value, Qt)) | |
3771 | value = make_number (1); | |
3772 | ||
3773 | if (UNSPECIFIEDP (value)) | |
3774 | valid_p = 1; | |
3775 | else if (NILP (value)) | |
3776 | valid_p = 1; | |
3777 | else if (INTEGERP (value)) | |
3778 | valid_p = XINT (value) > 0; | |
3779 | else if (STRINGP (value)) | |
3780 | valid_p = XSTRING (value)->size > 0; | |
3781 | else if (CONSP (value)) | |
3782 | { | |
3783 | Lisp_Object tem; | |
178c5d9c | 3784 | |
82641697 GM |
3785 | tem = value; |
3786 | while (CONSP (tem)) | |
3787 | { | |
3788 | Lisp_Object k, v; | |
3789 | ||
3790 | k = XCAR (tem); | |
3791 | tem = XCDR (tem); | |
3792 | if (!CONSP (tem)) | |
3793 | break; | |
3794 | v = XCAR (tem); | |
3795 | tem = XCDR (tem); | |
178c5d9c | 3796 | |
82641697 GM |
3797 | if (EQ (k, QCline_width)) |
3798 | { | |
3799 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3800 | break; | |
3801 | } | |
3802 | else if (EQ (k, QCcolor)) | |
3803 | { | |
3804 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3805 | break; | |
3806 | } | |
3807 | else if (EQ (k, QCstyle)) | |
3808 | { | |
3809 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3810 | break; | |
3811 | } | |
3812 | else | |
3813 | break; | |
3814 | } | |
3815 | ||
3816 | valid_p = NILP (tem); | |
3817 | } | |
3818 | else | |
3819 | valid_p = 0; | |
3820 | ||
3821 | if (!valid_p) | |
3822 | signal_error ("Invalid face box", value); | |
178c5d9c | 3823 | |
82641697 GM |
3824 | old_value = LFACE_BOX (lface); |
3825 | LFACE_BOX (lface) = value; | |
3826 | } | |
3827 | else if (EQ (attr, QCinverse_video) | |
3828 | || EQ (attr, QCreverse_video)) | |
3829 | { | |
3830 | if (!UNSPECIFIEDP (value)) | |
3831 | { | |
3832 | CHECK_SYMBOL (value, 3); | |
3833 | if (!EQ (value, Qt) && !NILP (value)) | |
3834 | signal_error ("Invalid inverse-video face attribute value", value); | |
3835 | } | |
3836 | old_value = LFACE_INVERSE (lface); | |
3837 | LFACE_INVERSE (lface) = value; | |
3838 | } | |
3839 | else if (EQ (attr, QCforeground)) | |
3840 | { | |
ef917393 | 3841 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3842 | { |
3843 | /* Don't check for valid color names here because it depends | |
3844 | on the frame (display) whether the color will be valid | |
3845 | when the face is realized. */ | |
3846 | CHECK_STRING (value, 3); | |
3847 | if (XSTRING (value)->size == 0) | |
3848 | signal_error ("Empty foreground color value", value); | |
3849 | } | |
3850 | old_value = LFACE_FOREGROUND (lface); | |
3851 | LFACE_FOREGROUND (lface) = value; | |
3852 | } | |
3853 | else if (EQ (attr, QCbackground)) | |
3854 | { | |
ef917393 | 3855 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3856 | { |
3857 | /* Don't check for valid color names here because it depends | |
3858 | on the frame (display) whether the color will be valid | |
3859 | when the face is realized. */ | |
3860 | CHECK_STRING (value, 3); | |
3861 | if (XSTRING (value)->size == 0) | |
3862 | signal_error ("Empty background color value", value); | |
3863 | } | |
3864 | old_value = LFACE_BACKGROUND (lface); | |
3865 | LFACE_BACKGROUND (lface) = value; | |
3866 | } | |
3867 | else if (EQ (attr, QCstipple)) | |
3868 | { | |
3869 | #ifdef HAVE_X_WINDOWS | |
3870 | if (!UNSPECIFIEDP (value) | |
3871 | && !NILP (value) | |
fef04523 | 3872 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
3873 | signal_error ("Invalid stipple attribute", value); |
3874 | old_value = LFACE_STIPPLE (lface); | |
3875 | LFACE_STIPPLE (lface) = value; | |
3876 | #endif /* HAVE_X_WINDOWS */ | |
3877 | } | |
3878 | else if (EQ (attr, QCwidth)) | |
3879 | { | |
3880 | if (!UNSPECIFIEDP (value)) | |
3881 | { | |
3882 | CHECK_SYMBOL (value, 3); | |
3883 | if (face_numeric_swidth (value) < 0) | |
3884 | signal_error ("Invalid face width", value); | |
3885 | } | |
3886 | old_value = LFACE_SWIDTH (lface); | |
3887 | LFACE_SWIDTH (lface) = value; | |
3888 | font_related_attr_p = 1; | |
3889 | } | |
3890 | else if (EQ (attr, QCfont)) | |
3891 | { | |
c3cee013 | 3892 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
3893 | /* Set font-related attributes of the Lisp face from an |
3894 | XLFD font name. */ | |
3895 | struct frame *f; | |
39506348 | 3896 | Lisp_Object tmp; |
82641697 GM |
3897 | |
3898 | CHECK_STRING (value, 3); | |
3899 | if (EQ (frame, Qt)) | |
c0617987 | 3900 | f = SELECTED_FRAME (); |
82641697 GM |
3901 | else |
3902 | f = check_x_frame (frame); | |
178c5d9c | 3903 | |
39506348 KH |
3904 | /* VALUE may be a fontset name or an alias of fontset. In such |
3905 | a case, use the base fontset name. */ | |
3906 | tmp = Fquery_fontset (value, Qnil); | |
3907 | if (!NILP (tmp)) | |
3908 | value = tmp; | |
3909 | ||
3910 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
3911 | signal_error ("Invalid font or fontset name", value); | |
3912 | ||
3913 | font_attr_p = 1; | |
c3cee013 | 3914 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 3915 | } |
2c20458f MB |
3916 | else if (EQ (attr, QCinherit)) |
3917 | { | |
3918 | Lisp_Object tail; | |
3919 | if (SYMBOLP (value)) | |
3920 | tail = Qnil; | |
3921 | else | |
3922 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3923 | if (!SYMBOLP (XCAR (tail))) | |
3924 | break; | |
3925 | if (NILP (tail)) | |
3926 | LFACE_INHERIT (lface) = value; | |
3927 | else | |
6288c62f | 3928 | signal_error ("Invalid face inheritance", value); |
2c20458f | 3929 | } |
82641697 GM |
3930 | else if (EQ (attr, QCbold)) |
3931 | { | |
3932 | old_value = LFACE_WEIGHT (lface); | |
3933 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3934 | font_related_attr_p = 1; | |
3935 | } | |
3936 | else if (EQ (attr, QCitalic)) | |
3937 | { | |
3938 | old_value = LFACE_SLANT (lface); | |
3939 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3940 | font_related_attr_p = 1; | |
3941 | } | |
3942 | else | |
3943 | signal_error ("Invalid face attribute name", attr); | |
3944 | ||
39506348 KH |
3945 | if (font_related_attr_p |
3946 | && !UNSPECIFIEDP (value)) | |
3947 | /* If a font-related attribute other than QCfont is specified, the | |
3948 | original `font' attribute nor that of default face is useless | |
3949 | to determine a new font. Thus, we set it to nil so that font | |
3950 | selection mechanism doesn't use it. */ | |
3951 | LFACE_FONT (lface) = Qnil; | |
3952 | ||
82641697 GM |
3953 | /* Changing a named face means that all realized faces depending on |
3954 | that face are invalid. Since we cannot tell which realized faces | |
3955 | depend on the face, make sure they are all removed. This is done | |
3956 | by incrementing face_change_count. The next call to | |
3957 | init_iterator will then free realized faces. */ | |
3958 | if (!EQ (frame, Qt) | |
3959 | && (EQ (attr, QCfont) | |
3960 | || NILP (Fequal (old_value, value)))) | |
3961 | { | |
3962 | ++face_change_count; | |
3963 | ++windows_or_buffers_changed; | |
3964 | } | |
3965 | ||
c3cee013 | 3966 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
3967 | |
3968 | if (!EQ (frame, Qt) | |
3969 | && !UNSPECIFIEDP (value) | |
82641697 | 3970 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3971 | { |
3972 | Lisp_Object param; | |
3973 | ||
3974 | param = Qnil; | |
178c5d9c | 3975 | |
8bd201d6 GM |
3976 | if (EQ (face, Qdefault)) |
3977 | { | |
3978 | /* Changed font-related attributes of the `default' face are | |
3979 | reflected in changed `font' frame parameters. */ | |
39506348 | 3980 | if ((font_related_attr_p || font_attr_p) |
8bd201d6 GM |
3981 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
3982 | set_font_frame_param (frame, lface); | |
3983 | else if (EQ (attr, QCforeground)) | |
3984 | param = Qforeground_color; | |
3985 | else if (EQ (attr, QCbackground)) | |
3986 | param = Qbackground_color; | |
3987 | } | |
c3cee013 | 3988 | #ifndef WINDOWSNT |
8bd201d6 GM |
3989 | else if (EQ (face, Qscroll_bar)) |
3990 | { | |
3991 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3992 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3993 | if (EQ (attr, QCforeground)) | |
3994 | param = Qscroll_bar_foreground; | |
3995 | else if (EQ (attr, QCbackground)) | |
3996 | param = Qscroll_bar_background; | |
3997 | } | |
c3cee013 | 3998 | #endif |
8bd201d6 GM |
3999 | else if (EQ (face, Qborder)) |
4000 | { | |
4001 | /* Changing background color of `border' sets frame parameter | |
4002 | `border-color'. */ | |
4003 | if (EQ (attr, QCbackground)) | |
4004 | param = Qborder_color; | |
4005 | } | |
4006 | else if (EQ (face, Qcursor)) | |
4007 | { | |
4008 | /* Changing background color of `cursor' sets frame parameter | |
4009 | `cursor-color'. */ | |
4010 | if (EQ (attr, QCbackground)) | |
4011 | param = Qcursor_color; | |
4012 | } | |
4013 | else if (EQ (face, Qmouse)) | |
4014 | { | |
4015 | /* Changing background color of `mouse' sets frame parameter | |
4016 | `mouse-color'. */ | |
4017 | if (EQ (attr, QCbackground)) | |
4018 | param = Qmouse_color; | |
4019 | } | |
4020 | ||
39506348 | 4021 | if (!NILP (param)) |
dbc968b8 GM |
4022 | { |
4023 | Lisp_Object cons; | |
4024 | cons = XCAR (Vparam_value_alist); | |
4025 | XCAR (cons) = param; | |
4026 | XCDR (cons) = value; | |
4027 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4028 | } | |
8bd201d6 | 4029 | } |
82641697 | 4030 | |
c3cee013 | 4031 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 4032 | |
82641697 GM |
4033 | return face; |
4034 | } | |
4035 | ||
4036 | ||
c3cee013 | 4037 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4038 | |
39506348 KH |
4039 | /* Set the `font' frame parameter of FRAME determined from `default' |
4040 | face attributes LFACE. If a face or fontset name is explicitely | |
4041 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4042 | from the other font-related atrributes of LFACE. In that case, if | |
4043 | there's no matching font, signals an error. */ | |
82641697 GM |
4044 | |
4045 | static void | |
4046 | set_font_frame_param (frame, lface) | |
4047 | Lisp_Object frame, lface; | |
4048 | { | |
4049 | struct frame *f = XFRAME (frame); | |
39506348 | 4050 | Lisp_Object font_name; |
82641697 GM |
4051 | char *font; |
4052 | ||
39506348 KH |
4053 | if (STRINGP (LFACE_FONT (lface))) |
4054 | font_name = LFACE_FONT (lface); | |
82641697 GM |
4055 | else |
4056 | { | |
39506348 KH |
4057 | /* Choose a font name that reflects LFACE's attributes and has |
4058 | the registry and encoding pattern specified in the default | |
4059 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
4060 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0); | |
4061 | if (!font) | |
4062 | error ("No font matches the specified attribute"); | |
4063 | font_name = build_string (font); | |
4064 | xfree (font); | |
82641697 | 4065 | } |
5226a931 GM |
4066 | |
4067 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); | |
82641697 GM |
4068 | } |
4069 | ||
4070 | ||
8bd201d6 GM |
4071 | /* Update the corresponding face when frame parameter PARAM on frame F |
4072 | has been assigned the value NEW_VALUE. */ | |
4073 | ||
4074 | void | |
4075 | update_face_from_frame_parameter (f, param, new_value) | |
4076 | struct frame *f; | |
4077 | Lisp_Object param, new_value; | |
4078 | { | |
4079 | Lisp_Object lface; | |
4080 | ||
4081 | /* If there are no faces yet, give up. This is the case when called | |
4082 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4083 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4084 | if (NILP (f->face_alist)) |
4085 | return; | |
178c5d9c | 4086 | |
8bd201d6 GM |
4087 | if (EQ (param, Qforeground_color)) |
4088 | { | |
4089 | lface = lface_from_face_name (f, Qdefault, 1); | |
4090 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
4091 | ? new_value : Qunspecified); | |
4092 | realize_basic_faces (f); | |
4093 | } | |
4094 | else if (EQ (param, Qbackground_color)) | |
4095 | { | |
92610620 GM |
4096 | Lisp_Object frame; |
4097 | ||
4098 | /* Changing the background color might change the background | |
4099 | mode, so that we have to load new defface specs. Call | |
4100 | frame-update-face-colors to do that. */ | |
4101 | XSETFRAME (frame, f); | |
4102 | call1 (Qframe_update_face_colors, frame); | |
178c5d9c | 4103 | |
8bd201d6 GM |
4104 | lface = lface_from_face_name (f, Qdefault, 1); |
4105 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4106 | ? new_value : Qunspecified); | |
4107 | realize_basic_faces (f); | |
4108 | } | |
4109 | if (EQ (param, Qborder_color)) | |
4110 | { | |
4111 | lface = lface_from_face_name (f, Qborder, 1); | |
4112 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4113 | ? new_value : Qunspecified); | |
4114 | } | |
4115 | else if (EQ (param, Qcursor_color)) | |
4116 | { | |
4117 | lface = lface_from_face_name (f, Qcursor, 1); | |
4118 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4119 | ? new_value : Qunspecified); | |
4120 | } | |
4121 | else if (EQ (param, Qmouse_color)) | |
4122 | { | |
4123 | lface = lface_from_face_name (f, Qmouse, 1); | |
4124 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4125 | ? new_value : Qunspecified); | |
4126 | } | |
4127 | } | |
4128 | ||
4129 | ||
82641697 GM |
4130 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4131 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4132 | doesn't take a frame argument. */ | |
4133 | ||
4134 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
4135 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
4136 | (resource, class, frame) | |
4137 | Lisp_Object resource, class, frame; | |
4138 | { | |
c3cee013 JR |
4139 | Lisp_Object value = Qnil; |
4140 | #ifndef WINDOWSNT | |
82641697 GM |
4141 | CHECK_STRING (resource, 0); |
4142 | CHECK_STRING (class, 1); | |
4143 | CHECK_LIVE_FRAME (frame, 2); | |
4144 | BLOCK_INPUT; | |
4145 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4146 | resource, class, Qnil, Qnil); | |
4147 | UNBLOCK_INPUT; | |
c3cee013 | 4148 | #endif |
82641697 GM |
4149 | return value; |
4150 | } | |
4151 | ||
4152 | ||
4153 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4154 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4155 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4156 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4157 | |
82641697 GM |
4158 | static Lisp_Object |
4159 | face_boolean_x_resource_value (value, signal_p) | |
4160 | Lisp_Object value; | |
4161 | int signal_p; | |
4162 | { | |
4163 | Lisp_Object result = make_number (0); | |
4164 | ||
4165 | xassert (STRINGP (value)); | |
178c5d9c | 4166 | |
82641697 GM |
4167 | if (xstricmp (XSTRING (value)->data, "on") == 0 |
4168 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
4169 | result = Qt; | |
4170 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
4171 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
4172 | result = Qnil; | |
4173 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4174 | result = Qunspecified; | |
4175 | else if (signal_p) | |
4176 | signal_error ("Invalid face attribute value from X resource", value); | |
4177 | ||
4178 | return result; | |
4179 | } | |
4180 | ||
4181 | ||
4182 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4183 | Finternal_set_lisp_face_attribute_from_resource, | |
4184 | Sinternal_set_lisp_face_attribute_from_resource, | |
4185 | 3, 4, 0, "") | |
4186 | (face, attr, value, frame) | |
4187 | Lisp_Object face, attr, value, frame; | |
4188 | { | |
4189 | CHECK_SYMBOL (face, 0); | |
4190 | CHECK_SYMBOL (attr, 1); | |
4191 | CHECK_STRING (value, 2); | |
4192 | ||
4193 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4194 | value = Qunspecified; | |
4195 | else if (EQ (attr, QCheight)) | |
4196 | { | |
4197 | value = Fstring_to_number (value, make_number (10)); | |
4198 | if (XINT (value) <= 0) | |
4199 | signal_error ("Invalid face height from X resource", value); | |
4200 | } | |
4201 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4202 | value = face_boolean_x_resource_value (value, 1); | |
4203 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
4204 | value = intern (XSTRING (value)->data); | |
4205 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
4206 | value = face_boolean_x_resource_value (value, 1); | |
4207 | else if (EQ (attr, QCunderline) | |
4208 | || EQ (attr, QCoverline) | |
4209 | || EQ (attr, QCstrike_through) | |
4210 | || EQ (attr, QCbox)) | |
4211 | { | |
4212 | Lisp_Object boolean_value; | |
4213 | ||
4214 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4215 | VALUE does NOT specify a color. */ | |
4216 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4217 | if (SYMBOLP (boolean_value)) | |
4218 | value = boolean_value; | |
4219 | } | |
4220 | ||
4221 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4222 | } | |
4223 | ||
c3cee013 | 4224 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4225 | |
c7ae3284 | 4226 | \f |
c3cee013 | 4227 | #ifdef HAVE_X_WINDOWS |
c7ae3284 GM |
4228 | /*********************************************************************** |
4229 | Menu face | |
4230 | ***********************************************************************/ | |
4231 | ||
4232 | #ifdef USE_X_TOOLKIT | |
4233 | ||
f7cc6849 DL |
4234 | #include "../lwlib/lwlib-utils.h" |
4235 | ||
c7ae3284 GM |
4236 | /* Structure used to pass X resources to functions called via |
4237 | XtApplyToWidgets. */ | |
4238 | ||
4239 | struct x_resources | |
4240 | { | |
4241 | Arg *av; | |
4242 | int ac; | |
4243 | }; | |
4244 | ||
4245 | ||
4246 | #ifdef USE_MOTIF | |
4247 | ||
4248 | static void xm_apply_resources P_ ((Widget, XtPointer)); | |
4249 | static void xm_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
4250 | ||
4251 | ||
4252 | /* Set widget W's X resources from P which points to an x_resources | |
4253 | structure. If W is a cascade button, apply resources to W's | |
4254 | submenu. */ | |
4255 | ||
4256 | static void | |
4257 | xm_apply_resources (w, p) | |
4258 | Widget w; | |
4259 | XtPointer p; | |
4260 | { | |
4261 | Widget submenu = 0; | |
4262 | struct x_resources *res = (struct x_resources *) p; | |
178c5d9c | 4263 | |
c7ae3284 GM |
4264 | XtSetValues (w, res->av, res->ac); |
4265 | XtVaGetValues (w, XmNsubMenuId, &submenu, NULL); | |
4266 | if (submenu) | |
4267 | { | |
4268 | XtSetValues (submenu, res->av, res->ac); | |
4269 | XtApplyToWidgets (submenu, xm_apply_resources, p); | |
4270 | } | |
4271 | } | |
4272 | ||
4273 | ||
4274 | /* Set X resources of menu-widget WIDGET on frame F from face `menu'. | |
4275 | This is the LessTif/Motif version. As of LessTif 0.88 it has the | |
4276 | following problems: | |
4277 | ||
4278 | 1. Setting the XmNfontList resource leads to an infinite loop | |
4279 | somewhere in LessTif. */ | |
4280 | ||
4281 | static void | |
4282 | xm_set_menu_resources_from_menu_face (f, widget) | |
4283 | struct frame *f; | |
4284 | Widget widget; | |
4285 | { | |
4286 | struct face *face; | |
4287 | Lisp_Object lface; | |
4288 | Arg av[3]; | |
4289 | int ac = 0; | |
4290 | XmFontList fl = 0; | |
4291 | ||
4292 | lface = lface_from_face_name (f, Qmenu, 1); | |
4293 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4294 | ||
4295 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
4296 | { | |
4297 | XtSetArg (av[ac], XmNforeground, face->foreground); | |
4298 | ++ac; | |
4299 | } | |
4300 | ||
4301 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
4302 | { | |
4303 | XtSetArg (av[ac], XmNbackground, face->background); | |
4304 | ++ac; | |
4305 | } | |
4306 | ||
4307 | /* If any font-related attribute of `menu' is set, set the font. */ | |
4308 | if (face->font | |
4309 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4310 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4311 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4312 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4313 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4314 | { | |
4315 | #if 0 /* Setting the font leads to an infinite loop somewhere | |
4316 | in LessTif during geometry computation. */ | |
4317 | XmFontListEntry fe; | |
4318 | fe = XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT, face->font); | |
4319 | fl = XmFontListAppendEntry (NULL, fe); | |
4320 | XtSetArg (av[ac], XmNfontList, fl); | |
4321 | ++ac; | |
4322 | #endif | |
4323 | } | |
4324 | ||
4325 | xassert (ac <= sizeof av / sizeof *av); | |
178c5d9c | 4326 | |
c7ae3284 GM |
4327 | if (ac) |
4328 | { | |
4329 | struct x_resources res; | |
178c5d9c | 4330 | |
c7ae3284 GM |
4331 | XtSetValues (widget, av, ac); |
4332 | res.av = av, res.ac = ac; | |
4333 | XtApplyToWidgets (widget, xm_apply_resources, &res); | |
4334 | if (fl) | |
4335 | XmFontListFree (fl); | |
4336 | } | |
4337 | } | |
4338 | ||
4339 | ||
4340 | #endif /* USE_MOTIF */ | |
4341 | ||
4342 | #ifdef USE_LUCID | |
4343 | ||
4344 | static void xl_apply_resources P_ ((Widget, XtPointer)); | |
4345 | static void xl_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
4346 | ||
4347 | ||
4348 | /* Set widget W's resources from P which points to an x_resources | |
4349 | structure. */ | |
4350 | ||
4351 | static void | |
4352 | xl_apply_resources (widget, p) | |
4353 | Widget widget; | |
4354 | XtPointer p; | |
4355 | { | |
4356 | struct x_resources *res = (struct x_resources *) p; | |
4357 | XtSetValues (widget, res->av, res->ac); | |
4358 | } | |
4359 | ||
4360 | ||
4361 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. | |
4362 | This is the Lucid version. */ | |
4363 | ||
4364 | static void | |
4365 | xl_set_menu_resources_from_menu_face (f, widget) | |
4366 | struct frame *f; | |
4367 | Widget widget; | |
4368 | { | |
4369 | struct face *face; | |
4370 | Lisp_Object lface; | |
4371 | Arg av[3]; | |
4372 | int ac = 0; | |
4373 | ||
4374 | lface = lface_from_face_name (f, Qmenu, 1); | |
4375 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4376 | ||
4377 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
4378 | { | |
4379 | XtSetArg (av[ac], XtNforeground, face->foreground); | |
4380 | ++ac; | |
4381 | } | |
4382 | ||
4383 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
4384 | { | |
4385 | XtSetArg (av[ac], XtNbackground, face->background); | |
4386 | ++ac; | |
4387 | } | |
4388 | ||
4389 | if (face->font | |
4390 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4391 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4392 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4393 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4394 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4395 | { | |
4396 | XtSetArg (av[ac], XtNfont, face->font); | |
4397 | ++ac; | |
4398 | } | |
4399 | ||
4400 | if (ac) | |
4401 | { | |
4402 | struct x_resources res; | |
178c5d9c | 4403 | |
c7ae3284 GM |
4404 | XtSetValues (widget, av, ac); |
4405 | ||
4406 | /* We must do children here in case we're handling a pop-up menu | |
4407 | in which case WIDGET is a popup shell. XtApplyToWidgets | |
4408 | is a function from lwlib. */ | |
4409 | res.av = av, res.ac = ac; | |
4410 | XtApplyToWidgets (widget, xl_apply_resources, &res); | |
4411 | } | |
4412 | } | |
4413 | ||
4414 | #endif /* USE_LUCID */ | |
4415 | ||
4416 | ||
4417 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */ | |
4418 | ||
4419 | void | |
4420 | x_set_menu_resources_from_menu_face (f, widget) | |
4421 | struct frame *f; | |
4422 | Widget widget; | |
4423 | { | |
15daa944 GM |
4424 | /* Realized faces may have been removed on frame F, e.g. because of |
4425 | face attribute changes. Recompute them, if necessary, since we | |
4426 | will need the `menu' face. */ | |
4427 | if (f->face_cache->used == 0) | |
4428 | recompute_basic_faces (f); | |
178c5d9c | 4429 | |
c7ae3284 GM |
4430 | #ifdef USE_LUCID |
4431 | xl_set_menu_resources_from_menu_face (f, widget); | |
4432 | #endif | |
4433 | #ifdef USE_MOTIF | |
4434 | xm_set_menu_resources_from_menu_face (f, widget); | |
4435 | #endif | |
4436 | } | |
4437 | ||
4438 | #endif /* USE_X_TOOLKIT */ | |
4439 | ||
82641697 GM |
4440 | #endif /* HAVE_X_WINDOWS */ |
4441 | ||
4442 | ||
4443 | ||
4444 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4445 | Sinternal_get_lisp_face_attribute, | |
4446 | 2, 3, 0, | |
4447 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
4448 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
4449 | face attribute name, signal an error.\n\ | |
4450 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
4451 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
4452 | frames). If FRAME is omitted or nil, use the selected frame.") | |
4453 | (symbol, keyword, frame) | |
4454 | Lisp_Object symbol, keyword, frame; | |
4455 | { | |
4456 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4457 | |
82641697 GM |
4458 | CHECK_SYMBOL (symbol, 0); |
4459 | CHECK_SYMBOL (keyword, 1); | |
4460 | ||
4461 | if (EQ (frame, Qt)) | |
4462 | lface = lface_from_face_name (NULL, symbol, 1); | |
4463 | else | |
4464 | { | |
4465 | if (NILP (frame)) | |
c0617987 | 4466 | frame = selected_frame; |
82641697 GM |
4467 | CHECK_LIVE_FRAME (frame, 2); |
4468 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
4469 | } | |
4470 | ||
4471 | if (EQ (keyword, QCfamily)) | |
4472 | value = LFACE_FAMILY (lface); | |
4473 | else if (EQ (keyword, QCheight)) | |
4474 | value = LFACE_HEIGHT (lface); | |
4475 | else if (EQ (keyword, QCweight)) | |
4476 | value = LFACE_WEIGHT (lface); | |
4477 | else if (EQ (keyword, QCslant)) | |
4478 | value = LFACE_SLANT (lface); | |
4479 | else if (EQ (keyword, QCunderline)) | |
4480 | value = LFACE_UNDERLINE (lface); | |
4481 | else if (EQ (keyword, QCoverline)) | |
4482 | value = LFACE_OVERLINE (lface); | |
4483 | else if (EQ (keyword, QCstrike_through)) | |
4484 | value = LFACE_STRIKE_THROUGH (lface); | |
4485 | else if (EQ (keyword, QCbox)) | |
4486 | value = LFACE_BOX (lface); | |
4487 | else if (EQ (keyword, QCinverse_video) | |
4488 | || EQ (keyword, QCreverse_video)) | |
4489 | value = LFACE_INVERSE (lface); | |
4490 | else if (EQ (keyword, QCforeground)) | |
4491 | value = LFACE_FOREGROUND (lface); | |
4492 | else if (EQ (keyword, QCbackground)) | |
4493 | value = LFACE_BACKGROUND (lface); | |
4494 | else if (EQ (keyword, QCstipple)) | |
4495 | value = LFACE_STIPPLE (lface); | |
4496 | else if (EQ (keyword, QCwidth)) | |
4497 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4498 | else if (EQ (keyword, QCinherit)) |
4499 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4500 | else if (EQ (keyword, QCfont)) |
4501 | value = LFACE_FONT (lface); | |
82641697 GM |
4502 | else |
4503 | signal_error ("Invalid face attribute name", keyword); | |
4504 | ||
4505 | return value; | |
4506 | } | |
4507 | ||
4508 | ||
4509 | DEFUN ("internal-lisp-face-attribute-values", | |
4510 | Finternal_lisp_face_attribute_values, | |
4511 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
4512 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
4513 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
4514 | (attr) | |
4515 | Lisp_Object attr; | |
4516 | { | |
4517 | Lisp_Object result = Qnil; | |
178c5d9c | 4518 | |
82641697 | 4519 | CHECK_SYMBOL (attr, 0); |
178c5d9c | 4520 | |
82641697 GM |
4521 | if (EQ (attr, QCweight) |
4522 | || EQ (attr, QCslant) | |
4523 | || EQ (attr, QCwidth)) | |
4524 | { | |
4525 | /* Extract permissible symbols from tables. */ | |
4526 | struct table_entry *table; | |
4527 | int i, dim; | |
178c5d9c | 4528 | |
82641697 GM |
4529 | if (EQ (attr, QCweight)) |
4530 | table = weight_table, dim = DIM (weight_table); | |
4531 | else if (EQ (attr, QCslant)) | |
4532 | table = slant_table, dim = DIM (slant_table); | |
4533 | else | |
4534 | table = swidth_table, dim = DIM (swidth_table); | |
4535 | ||
4536 | for (i = 0; i < dim; ++i) | |
4537 | { | |
4538 | Lisp_Object symbol = *table[i].symbol; | |
4539 | Lisp_Object tail = result; | |
4540 | ||
4541 | while (!NILP (tail) | |
4542 | && !EQ (XCAR (tail), symbol)) | |
4543 | tail = XCDR (tail); | |
4544 | ||
4545 | if (NILP (tail)) | |
4546 | result = Fcons (symbol, result); | |
4547 | } | |
4548 | } | |
4549 | else if (EQ (attr, QCunderline)) | |
4550 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4551 | else if (EQ (attr, QCoverline)) | |
4552 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4553 | else if (EQ (attr, QCstrike_through)) | |
4554 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4555 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4556 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4557 | ||
4558 | return result; | |
4559 | } | |
178c5d9c | 4560 | |
82641697 GM |
4561 | |
4562 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4563 | Sinternal_merge_in_global_face, 2, 2, 0, |
460dc922 | 4564 | "Add attributes from frame-default definition of FACE to FACE on FRAME.\n\ |
aad40737 | 4565 | Default face attributes override any local face attributes.") |
82641697 GM |
4566 | (face, frame) |
4567 | Lisp_Object face, frame; | |
4568 | { | |
aad40737 MB |
4569 | int i; |
4570 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4571 | ||
82641697 GM |
4572 | CHECK_LIVE_FRAME (frame, 1); |
4573 | global_lface = lface_from_face_name (NULL, face, 1); | |
4574 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4575 | if (NILP (local_lface)) | |
4576 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4577 | |
cec33c90 SM |
4578 | /* Make every specified global attribute override the local one. |
4579 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4580 | the local frame is defined from default specs in `face-defface-spec' | |
4581 | and those should be overridden by global settings. Hence the strange | |
4582 | "global before local" priority. */ | |
aad40737 MB |
4583 | lvec = XVECTOR (local_lface)->contents; |
4584 | gvec = XVECTOR (global_lface)->contents; | |
4585 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4586 | if (! UNSPECIFIEDP (gvec[i])) | |
4587 | lvec[i] = gvec[i]; | |
334a2e2a GM |
4588 | |
4589 | return Qnil; | |
82641697 GM |
4590 | } |
4591 | ||
4592 | ||
4593 | /* The following function is implemented for compatibility with 20.2. | |
4594 | The function is used in x-resolve-fonts when it is asked to | |
4595 | return fonts with the same size as the font of a face. This is | |
4596 | done in fontset.el. */ | |
4597 | ||
178c5d9c | 4598 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
82641697 GM |
4599 | "Return the font name of face FACE, or nil if it is unspecified.\n\ |
4600 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4601 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4602 | The font default for a face is either nil, or a list\n\ | |
4603 | of the form (bold), (italic) or (bold italic).\n\ | |
4604 | If FRAME is omitted or nil, use the selected frame.") | |
4605 | (face, frame) | |
4606 | Lisp_Object face, frame; | |
4607 | { | |
4608 | if (EQ (frame, Qt)) | |
4609 | { | |
4610 | Lisp_Object result = Qnil; | |
4611 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4612 | ||
4613 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4614 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4615 | result = Fcons (Qbold, result); | |
178c5d9c | 4616 | |
82641697 GM |
4617 | if (!NILP (LFACE_SLANT (lface)) |
4618 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
4619 | result = Fcons (Qitalic, result); | |
178c5d9c | 4620 | |
82641697 GM |
4621 | return result; |
4622 | } | |
4623 | else | |
4624 | { | |
4625 | struct frame *f = frame_or_selected_frame (frame, 1); | |
39506348 | 4626 | int face_id = lookup_named_face (f, face, 0); |
82641697 GM |
4627 | struct face *face = FACE_FROM_ID (f, face_id); |
4628 | return build_string (face->font_name); | |
4629 | } | |
4630 | } | |
4631 | ||
4632 | ||
4633 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4634 | all attributes are `equal'. Tries to be fast because this function | |
4635 | is called quite often. */ | |
4636 | ||
4637 | static INLINE int | |
4638 | lface_equal_p (v1, v2) | |
4639 | Lisp_Object *v1, *v2; | |
4640 | { | |
4641 | int i, equal_p = 1; | |
4642 | ||
4643 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4644 | { | |
4645 | Lisp_Object a = v1[i]; | |
4646 | Lisp_Object b = v2[i]; | |
4647 | ||
4648 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4649 | and the other is specified. */ | |
4650 | equal_p = XTYPE (a) == XTYPE (b); | |
4651 | if (!equal_p) | |
4652 | break; | |
4653 | ||
4654 | if (!EQ (a, b)) | |
4655 | { | |
4656 | switch (XTYPE (a)) | |
4657 | { | |
4658 | case Lisp_String: | |
ae4b4ba5 GM |
4659 | equal_p = ((STRING_BYTES (XSTRING (a)) |
4660 | == STRING_BYTES (XSTRING (b))) | |
82641697 | 4661 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, |
ae4b4ba5 | 4662 | STRING_BYTES (XSTRING (a))) == 0); |
82641697 | 4663 | break; |
178c5d9c | 4664 | |
82641697 GM |
4665 | case Lisp_Int: |
4666 | case Lisp_Symbol: | |
4667 | equal_p = 0; | |
4668 | break; | |
178c5d9c | 4669 | |
82641697 GM |
4670 | default: |
4671 | equal_p = !NILP (Fequal (a, b)); | |
4672 | break; | |
4673 | } | |
4674 | } | |
4675 | } | |
178c5d9c | 4676 | |
82641697 GM |
4677 | return equal_p; |
4678 | } | |
4679 | ||
4680 | ||
4681 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4682 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
4683 | "True if FACE1 and FACE2 are equal.\n\ | |
4684 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4685 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4686 | If FRAME is omitted or nil, use the selected frame.") | |
4687 | (face1, face2, frame) | |
4688 | Lisp_Object face1, face2, frame; | |
4689 | { | |
4690 | int equal_p; | |
4691 | struct frame *f; | |
4692 | Lisp_Object lface1, lface2; | |
178c5d9c | 4693 | |
82641697 GM |
4694 | if (EQ (frame, Qt)) |
4695 | f = NULL; | |
4696 | else | |
4697 | /* Don't use check_x_frame here because this function is called | |
4698 | before X frames exist. At that time, if FRAME is nil, | |
4699 | selected_frame will be used which is the frame dumped with | |
4700 | Emacs. That frame is not an X frame. */ | |
4701 | f = frame_or_selected_frame (frame, 2); | |
4702 | ||
4703 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4704 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4705 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4706 | XVECTOR (lface2)->contents); | |
4707 | return equal_p ? Qt : Qnil; | |
4708 | } | |
4709 | ||
178c5d9c | 4710 | |
82641697 GM |
4711 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
4712 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
4713 | "True if FACE has no attribute specified.\n\ | |
4714 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4715 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4716 | If FRAME is omitted or nil, use the selected frame.") | |
4717 | (face, frame) | |
4718 | Lisp_Object face, frame; | |
4719 | { | |
4720 | struct frame *f; | |
4721 | Lisp_Object lface; | |
4722 | int i; | |
4723 | ||
4724 | if (NILP (frame)) | |
c0617987 GM |
4725 | frame = selected_frame; |
4726 | CHECK_LIVE_FRAME (frame, 0); | |
4727 | f = XFRAME (frame); | |
178c5d9c | 4728 | |
82641697 GM |
4729 | if (EQ (frame, Qt)) |
4730 | lface = lface_from_face_name (NULL, face, 1); | |
4731 | else | |
4732 | lface = lface_from_face_name (f, face, 1); | |
4733 | ||
4734 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4735 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
4736 | break; | |
178c5d9c | 4737 | |
82641697 GM |
4738 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
4739 | } | |
4740 | ||
4741 | ||
4742 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 4743 | 0, 1, 0, |
82641697 GM |
4744 | "Return an alist of frame-local faces defined on FRAME.\n\ |
4745 | For internal use only.") | |
4746 | (frame) | |
4747 | Lisp_Object frame; | |
4748 | { | |
4749 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4750 | return f->face_alist; | |
4751 | } | |
4752 | ||
4753 | ||
4754 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4755 | below in computing a hash value for a Lisp face. */ | |
4756 | ||
4757 | static INLINE unsigned | |
4758 | hash_string_case_insensitive (string) | |
4759 | Lisp_Object string; | |
4760 | { | |
4761 | unsigned char *s; | |
4762 | unsigned hash = 0; | |
4763 | xassert (STRINGP (string)); | |
4764 | for (s = XSTRING (string)->data; *s; ++s) | |
4765 | hash = (hash << 1) ^ tolower (*s); | |
4766 | return hash; | |
4767 | } | |
4768 | ||
4769 | ||
4770 | /* Return a hash code for face attribute vector V. */ | |
4771 | ||
4772 | static INLINE unsigned | |
4773 | lface_hash (v) | |
4774 | Lisp_Object *v; | |
4775 | { | |
4776 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4777 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4778 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
4779 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
4780 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
4781 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
4782 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
4783 | } | |
4784 | ||
4785 | ||
4786 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4787 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
4788 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
4789 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
4790 | |
4791 | static INLINE int | |
4792 | lface_same_font_attributes_p (lface1, lface2) | |
4793 | Lisp_Object *lface1, *lface2; | |
4794 | { | |
4795 | xassert (lface_fully_specified_p (lface1) | |
4796 | && lface_fully_specified_p (lface2)); | |
4797 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4798 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
2c20458f | 4799 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 GM |
4800 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
4801 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
39506348 KH |
4802 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
4803 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
4804 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 4805 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
39506348 KH |
4806 | && xstricmp (XSTRING (lface1[LFACE_FONT_INDEX])->data, |
4807 | XSTRING (lface2[LFACE_FONT_INDEX])->data)))); | |
82641697 GM |
4808 | } |
4809 | ||
4810 | ||
4811 | \f | |
4812 | /*********************************************************************** | |
4813 | Realized Faces | |
4814 | ***********************************************************************/ | |
4815 | ||
4816 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4817 | vector ATTR. */ |
82641697 GM |
4818 | |
4819 | static struct face * | |
39506348 | 4820 | make_realized_face (attr) |
82641697 | 4821 | Lisp_Object *attr; |
82641697 GM |
4822 | { |
4823 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4824 | bzero (face, sizeof *face); | |
39506348 | 4825 | face->ascii_face = face; |
82641697 GM |
4826 | bcopy (attr, face->lface, sizeof face->lface); |
4827 | return face; | |
4828 | } | |
4829 | ||
4830 | ||
4831 | /* Free realized face FACE, including its X resources. FACE may | |
4832 | be null. */ | |
4833 | ||
4834 | static void | |
4835 | free_realized_face (f, face) | |
4836 | struct frame *f; | |
4837 | struct face *face; | |
4838 | { | |
4839 | if (face) | |
4840 | { | |
c3cee013 JR |
4841 | #ifdef HAVE_WINDOW_SYSTEM |
4842 | if (FRAME_WINDOW_P (f)) | |
82641697 | 4843 | { |
39506348 KH |
4844 | /* Free fontset of FACE if it is ASCII face. */ |
4845 | if (face->fontset >= 0 && face == face->ascii_face) | |
4846 | free_face_fontset (f, face); | |
82641697 GM |
4847 | if (face->gc) |
4848 | { | |
4849 | x_free_gc (f, face->gc); | |
4850 | face->gc = 0; | |
4851 | } | |
178c5d9c | 4852 | |
82641697 GM |
4853 | free_face_colors (f, face); |
4854 | x_destroy_bitmap (f, face->stipple); | |
4855 | } | |
c3cee013 | 4856 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4857 | |
4858 | xfree (face); | |
4859 | } | |
4860 | } | |
4861 | ||
4862 | ||
4863 | /* Prepare face FACE for subsequent display on frame F. This | |
4864 | allocated GCs if they haven't been allocated yet or have been freed | |
4865 | by clearing the face cache. */ | |
4866 | ||
4867 | void | |
4868 | prepare_face_for_display (f, face) | |
4869 | struct frame *f; | |
4870 | struct face *face; | |
4871 | { | |
c3cee013 JR |
4872 | #ifdef HAVE_WINDOW_SYSTEM |
4873 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 4874 | |
82641697 GM |
4875 | if (face->gc == 0) |
4876 | { | |
4877 | XGCValues xgcv; | |
4878 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4879 | ||
4880 | xgcv.foreground = face->foreground; | |
4881 | xgcv.background = face->background; | |
c3cee013 | 4882 | #ifdef HAVE_X_WINDOWS |
82641697 | 4883 | xgcv.graphics_exposures = False; |
c3cee013 | 4884 | #endif |
82641697 GM |
4885 | /* The font of FACE may be null if we couldn't load it. */ |
4886 | if (face->font) | |
4887 | { | |
c3cee013 | 4888 | #ifdef HAVE_X_WINDOWS |
82641697 | 4889 | xgcv.font = face->font->fid; |
c3cee013 JR |
4890 | #endif |
4891 | #ifdef WINDOWSNT | |
4892 | xgcv.font = face->font; | |
4893 | #endif | |
82641697 GM |
4894 | mask |= GCFont; |
4895 | } | |
4896 | ||
4897 | BLOCK_INPUT; | |
c3cee013 | 4898 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
4899 | if (face->stipple) |
4900 | { | |
be8a72f4 | 4901 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4902 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4903 | mask |= GCFillStyle | GCStipple; | |
4904 | } | |
c3cee013 | 4905 | #endif |
82641697 GM |
4906 | face->gc = x_create_gc (f, mask, &xgcv); |
4907 | UNBLOCK_INPUT; | |
4908 | } | |
c3cee013 | 4909 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4910 | } |
4911 | ||
82641697 GM |
4912 | \f |
4913 | /*********************************************************************** | |
4914 | Face Cache | |
4915 | ***********************************************************************/ | |
4916 | ||
4917 | /* Return a new face cache for frame F. */ | |
4918 | ||
4919 | static struct face_cache * | |
4920 | make_face_cache (f) | |
4921 | struct frame *f; | |
4922 | { | |
4923 | struct face_cache *c; | |
4924 | int size; | |
4925 | ||
4926 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4927 | bzero (c, sizeof *c); | |
4928 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4929 | c->buckets = (struct face **) xmalloc (size); | |
4930 | bzero (c->buckets, size); | |
4931 | c->size = 50; | |
4932 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4933 | c->f = f; | |
4934 | return c; | |
4935 | } | |
4936 | ||
4937 | ||
4938 | /* Clear out all graphics contexts for all realized faces, except for | |
4939 | the basic faces. This should be done from time to time just to avoid | |
4940 | keeping too many graphics contexts that are no longer needed. */ | |
4941 | ||
4942 | static void | |
4943 | clear_face_gcs (c) | |
4944 | struct face_cache *c; | |
4945 | { | |
c3cee013 | 4946 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 4947 | { |
c3cee013 | 4948 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4949 | int i; |
4950 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4951 | { | |
4952 | struct face *face = c->faces_by_id[i]; | |
4953 | if (face && face->gc) | |
4954 | { | |
4955 | x_free_gc (c->f, face->gc); | |
4956 | face->gc = 0; | |
4957 | } | |
4958 | } | |
c3cee013 | 4959 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4960 | } |
4961 | } | |
4962 | ||
4963 | ||
4964 | /* Free all realized faces in face cache C, including basic faces. C | |
4965 | may be null. If faces are freed, make sure the frame's current | |
4966 | matrix is marked invalid, so that a display caused by an expose | |
4967 | event doesn't try to use faces we destroyed. */ | |
4968 | ||
4969 | static void | |
4970 | free_realized_faces (c) | |
4971 | struct face_cache *c; | |
4972 | { | |
4973 | if (c && c->used) | |
4974 | { | |
4975 | int i, size; | |
4976 | struct frame *f = c->f; | |
4977 | ||
84ec3b4b GM |
4978 | /* We must block input here because we can't process X events |
4979 | safely while only some faces are freed, or when the frame's | |
4980 | current matrix still references freed faces. */ | |
4981 | BLOCK_INPUT; | |
4982 | ||
82641697 GM |
4983 | for (i = 0; i < c->used; ++i) |
4984 | { | |
4985 | free_realized_face (f, c->faces_by_id[i]); | |
4986 | c->faces_by_id[i] = NULL; | |
4987 | } | |
178c5d9c | 4988 | |
82641697 GM |
4989 | c->used = 0; |
4990 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4991 | bzero (c->buckets, size); | |
4992 | ||
4993 | /* Must do a thorough redisplay the next time. Mark current | |
4994 | matrices as invalid because they will reference faces freed | |
4995 | above. This function is also called when a frame is | |
4996 | destroyed. In this case, the root window of F is nil. */ | |
4997 | if (WINDOWP (f->root_window)) | |
4998 | { | |
4999 | clear_current_matrices (f); | |
5000 | ++windows_or_buffers_changed; | |
5001 | } | |
84ec3b4b GM |
5002 | |
5003 | UNBLOCK_INPUT; | |
82641697 GM |
5004 | } |
5005 | } | |
5006 | ||
5007 | ||
39506348 KH |
5008 | /* Free all faces realized for multibyte characters on frame F that |
5009 | has FONTSET. */ | |
5010 | ||
5011 | void | |
5012 | free_realized_multibyte_face (f, fontset) | |
5013 | struct frame *f; | |
5014 | int fontset; | |
5015 | { | |
5016 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
5017 | struct face *face; | |
5018 | int i; | |
5019 | ||
84ec3b4b GM |
5020 | /* We must block input here because we can't process X events safely |
5021 | while only some faces are freed, or when the frame's current | |
5022 | matrix still references freed faces. */ | |
5023 | BLOCK_INPUT; | |
178c5d9c | 5024 | |
39506348 KH |
5025 | for (i = 0; i < cache->used; i++) |
5026 | { | |
5027 | face = cache->faces_by_id[i]; | |
5028 | if (face | |
5029 | && face != face->ascii_face | |
5030 | && face->fontset == fontset) | |
5031 | { | |
5032 | uncache_face (cache, face); | |
5033 | free_realized_face (f, face); | |
5034 | } | |
5035 | } | |
178c5d9c | 5036 | |
84ec3b4b GM |
5037 | /* Must do a thorough redisplay the next time. Mark current |
5038 | matrices as invalid because they will reference faces freed | |
5039 | above. This function is also called when a frame is destroyed. | |
5040 | In this case, the root window of F is nil. */ | |
39506348 KH |
5041 | if (WINDOWP (f->root_window)) |
5042 | { | |
5043 | clear_current_matrices (f); | |
5044 | ++windows_or_buffers_changed; | |
5045 | } | |
178c5d9c | 5046 | |
84ec3b4b | 5047 | UNBLOCK_INPUT; |
39506348 KH |
5048 | } |
5049 | ||
5050 | ||
82641697 GM |
5051 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5052 | This is done after attributes of a named face have been changed, | |
5053 | because we can't tell which realized faces depend on that face. */ | |
5054 | ||
5055 | void | |
5056 | free_all_realized_faces (frame) | |
5057 | Lisp_Object frame; | |
5058 | { | |
5059 | if (NILP (frame)) | |
5060 | { | |
5061 | Lisp_Object rest; | |
5062 | FOR_EACH_FRAME (rest, frame) | |
5063 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5064 | } | |
5065 | else | |
5066 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5067 | } | |
5068 | ||
5069 | ||
5070 | /* Free face cache C and faces in it, including their X resources. */ | |
5071 | ||
5072 | static void | |
5073 | free_face_cache (c) | |
5074 | struct face_cache *c; | |
5075 | { | |
5076 | if (c) | |
5077 | { | |
5078 | free_realized_faces (c); | |
5079 | xfree (c->buckets); | |
5080 | xfree (c->faces_by_id); | |
5081 | xfree (c); | |
5082 | } | |
5083 | } | |
5084 | ||
5085 | ||
5086 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5087 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5088 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5089 | otherwise lookup_face would find FACE for every character, even if |
5090 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5091 | |
5092 | static void | |
5093 | cache_face (c, face, hash) | |
5094 | struct face_cache *c; | |
5095 | struct face *face; | |
5096 | unsigned hash; | |
5097 | { | |
5098 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5099 | ||
5100 | face->hash = hash; | |
5101 | ||
5102 | if (face->fontset >= 0) | |
5103 | { | |
5104 | struct face *last = c->buckets[i]; | |
5105 | if (last) | |
5106 | { | |
5107 | while (last->next) | |
5108 | last = last->next; | |
5109 | last->next = face; | |
5110 | face->prev = last; | |
5111 | face->next = NULL; | |
5112 | } | |
5113 | else | |
5114 | { | |
5115 | c->buckets[i] = face; | |
5116 | face->prev = face->next = NULL; | |
5117 | } | |
5118 | } | |
5119 | else | |
5120 | { | |
5121 | face->prev = NULL; | |
5122 | face->next = c->buckets[i]; | |
5123 | if (face->next) | |
5124 | face->next->prev = face; | |
5125 | c->buckets[i] = face; | |
5126 | } | |
5127 | ||
5128 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5129 | slot as FACE->id. */ | |
5130 | for (i = 0; i < c->used; ++i) | |
5131 | if (c->faces_by_id[i] == NULL) | |
5132 | break; | |
5133 | face->id = i; | |
178c5d9c | 5134 | |
82641697 GM |
5135 | /* Maybe enlarge C->faces_by_id. */ |
5136 | if (i == c->used && c->used == c->size) | |
5137 | { | |
5138 | int new_size = 2 * c->size; | |
5139 | int sz = new_size * sizeof *c->faces_by_id; | |
5140 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5141 | c->size = new_size; | |
5142 | } | |
5143 | ||
5144 | #if GLYPH_DEBUG | |
5145 | /* Check that FACE got a unique id. */ | |
5146 | { | |
5147 | int j, n; | |
5148 | struct face *face; | |
5149 | ||
5150 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5151 | for (face = c->buckets[j]; face; face = face->next) | |
5152 | if (face->id == i) | |
5153 | ++n; | |
5154 | ||
5155 | xassert (n == 1); | |
5156 | } | |
5157 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5158 | |
82641697 GM |
5159 | c->faces_by_id[i] = face; |
5160 | if (i == c->used) | |
5161 | ++c->used; | |
5162 | } | |
5163 | ||
5164 | ||
5165 | /* Remove face FACE from cache C. */ | |
5166 | ||
5167 | static void | |
5168 | uncache_face (c, face) | |
5169 | struct face_cache *c; | |
5170 | struct face *face; | |
5171 | { | |
5172 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5173 | |
82641697 GM |
5174 | if (face->prev) |
5175 | face->prev->next = face->next; | |
5176 | else | |
5177 | c->buckets[i] = face->next; | |
178c5d9c | 5178 | |
82641697 GM |
5179 | if (face->next) |
5180 | face->next->prev = face->prev; | |
178c5d9c | 5181 | |
82641697 GM |
5182 | c->faces_by_id[face->id] = NULL; |
5183 | if (face->id == c->used) | |
5184 | --c->used; | |
5185 | } | |
5186 | ||
5187 | ||
5188 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5189 | of frame F. The face will be used to display character C. Value |
5190 | is the ID of the face found. If no suitable face is found, realize | |
5191 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5192 | is a face that has the same attributes. */ |
82641697 GM |
5193 | |
5194 | INLINE int | |
39506348 | 5195 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5196 | struct frame *f; |
5197 | Lisp_Object *attr; | |
39506348 KH |
5198 | int c; |
5199 | struct face *base_face; | |
82641697 | 5200 | { |
39506348 | 5201 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5202 | unsigned hash; |
5203 | int i; | |
5204 | struct face *face; | |
5205 | ||
39506348 | 5206 | xassert (cache != NULL); |
82641697 GM |
5207 | check_lface_attrs (attr); |
5208 | ||
5209 | /* Look up ATTR in the face cache. */ | |
5210 | hash = lface_hash (attr); | |
5211 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5212 | |
39506348 | 5213 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5214 | if (face->hash == hash |
44747bd0 | 5215 | && (!FRAME_WINDOW_P (f) |
39506348 | 5216 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5217 | && lface_equal_p (face->lface, attr)) |
5218 | break; | |
5219 | ||
5220 | /* If not found, realize a new face. */ | |
5221 | if (face == NULL) | |
39506348 | 5222 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5223 | |
5224 | #if GLYPH_DEBUG | |
5225 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5226 | |
5227 | /* When this function is called from face_for_char (in this case, C is | |
5228 | a multibyte character), a fontset of a face returned by | |
5229 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5230 | C) is not sutisfied. The fontset is set for this face by | |
5231 | face_for_char later. */ | |
c87a1fda | 5232 | #if 0 |
c3cee013 | 5233 | if (FRAME_WINDOW_P (f)) |
39506348 | 5234 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5235 | #endif |
82641697 | 5236 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5237 | |
82641697 GM |
5238 | return face->id; |
5239 | } | |
5240 | ||
5241 | ||
5242 | /* Return the face id of the realized face for named face SYMBOL on | |
39506348 | 5243 | frame F suitable for displaying character C. */ |
82641697 GM |
5244 | |
5245 | int | |
39506348 | 5246 | lookup_named_face (f, symbol, c) |
82641697 GM |
5247 | struct frame *f; |
5248 | Lisp_Object symbol; | |
39506348 | 5249 | int c; |
82641697 GM |
5250 | { |
5251 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5252 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5253 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5254 | ||
5255 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5256 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5257 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5258 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
5259 | } |
5260 | ||
5261 | ||
5262 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
5263 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
5264 | ||
5265 | int | |
5266 | ascii_face_of_lisp_face (f, lface_id) | |
5267 | struct frame *f; | |
5268 | int lface_id; | |
5269 | { | |
5270 | int face_id; | |
178c5d9c | 5271 | |
82641697 GM |
5272 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
5273 | { | |
5274 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
39506348 | 5275 | face_id = lookup_named_face (f, face_name, 0); |
82641697 GM |
5276 | } |
5277 | else | |
5278 | face_id = -1; | |
5279 | ||
5280 | return face_id; | |
5281 | } | |
5282 | ||
5283 | ||
5284 | /* Return a face for charset ASCII that is like the face with id | |
5285 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
5286 | STEPS < 0 means larger. Value is the id of the face. */ | |
5287 | ||
5288 | int | |
5289 | smaller_face (f, face_id, steps) | |
5290 | struct frame *f; | |
5291 | int face_id, steps; | |
39506348 | 5292 | { |
c3cee013 | 5293 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5294 | struct face *face; |
5295 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5296 | int pt, last_pt, last_height; | |
5297 | int delta; | |
5298 | int new_face_id; | |
5299 | struct face *new_face; | |
5300 | ||
5301 | /* If not called for an X frame, just return the original face. */ | |
5302 | if (FRAME_TERMCAP_P (f)) | |
5303 | return face_id; | |
5304 | ||
5305 | /* Try in increments of 1/2 pt. */ | |
5306 | delta = steps < 0 ? 5 : -5; | |
5307 | steps = abs (steps); | |
178c5d9c | 5308 | |
82641697 GM |
5309 | face = FACE_FROM_ID (f, face_id); |
5310 | bcopy (face->lface, attrs, sizeof attrs); | |
5311 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5312 | new_face_id = face_id; | |
5313 | last_height = FONT_HEIGHT (face->font); | |
5314 | ||
5315 | while (steps | |
5316 | && pt + delta > 0 | |
5317 | /* Give up if we cannot find a font within 10pt. */ | |
5318 | && abs (last_pt - pt) < 100) | |
5319 | { | |
5320 | /* Look up a face for a slightly smaller/larger font. */ | |
5321 | pt += delta; | |
5322 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 5323 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
5324 | new_face = FACE_FROM_ID (f, new_face_id); |
5325 | ||
5326 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
5327 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
5328 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
5329 | { |
5330 | --steps; | |
5331 | last_height = FONT_HEIGHT (new_face->font); | |
5332 | last_pt = pt; | |
5333 | } | |
5334 | } | |
5335 | ||
5336 | return new_face_id; | |
5337 | ||
c3cee013 | 5338 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5339 | |
5340 | return face_id; | |
178c5d9c | 5341 | |
c3cee013 | 5342 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5343 | } |
5344 | ||
5345 | ||
5346 | /* Return a face for charset ASCII that is like the face with id | |
5347 | FACE_ID on frame F, but has height HEIGHT. */ | |
5348 | ||
5349 | int | |
5350 | face_with_height (f, face_id, height) | |
5351 | struct frame *f; | |
5352 | int face_id; | |
5353 | int height; | |
5354 | { | |
c3cee013 | 5355 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5356 | struct face *face; |
5357 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5358 | ||
5359 | if (FRAME_TERMCAP_P (f) | |
5360 | || height <= 0) | |
5361 | return face_id; | |
5362 | ||
5363 | face = FACE_FROM_ID (f, face_id); | |
5364 | bcopy (face->lface, attrs, sizeof attrs); | |
5365 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5366 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5367 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 5368 | |
82641697 GM |
5369 | return face_id; |
5370 | } | |
5371 | ||
44747bd0 | 5372 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5373 | frame F suitable for displaying character C, and use attributes of |
5374 | the face FACE_ID for attributes that aren't completely specified by | |
5375 | SYMBOL. This is like lookup_named_face, except that the default | |
5376 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5377 | is assumed to be already realized. */ | |
44747bd0 EZ |
5378 | |
5379 | int | |
39506348 | 5380 | lookup_derived_face (f, symbol, c, face_id) |
44747bd0 EZ |
5381 | struct frame *f; |
5382 | Lisp_Object symbol; | |
39506348 | 5383 | int c; |
44747bd0 EZ |
5384 | int face_id; |
5385 | { | |
5386 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5387 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5388 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5389 | ||
5390 | if (!default_face) | |
5391 | abort (); | |
5392 | ||
5393 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5394 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5395 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5396 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5397 | } |
5398 | ||
82641697 GM |
5399 | |
5400 | \f | |
5401 | /*********************************************************************** | |
5402 | Font selection | |
5403 | ***********************************************************************/ | |
5404 | ||
5405 | DEFUN ("internal-set-font-selection-order", | |
5406 | Finternal_set_font_selection_order, | |
5407 | Sinternal_set_font_selection_order, 1, 1, 0, | |
5408 | "Set font selection order for face font selection to ORDER.\n\ | |
5409 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
5410 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
5411 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
5412 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
5413 | a suitable height, and then tries to match the font weight.\n\ | |
5414 | Value is ORDER.") | |
5415 | (order) | |
5416 | Lisp_Object order; | |
5417 | { | |
5418 | Lisp_Object list; | |
5419 | int i; | |
5420 | int indices[4]; | |
178c5d9c | 5421 | |
82641697 GM |
5422 | CHECK_LIST (order, 0); |
5423 | bzero (indices, sizeof indices); | |
5424 | i = 0; | |
5425 | ||
5426 | for (list = order; | |
5427 | CONSP (list) && i < DIM (indices); | |
5428 | list = XCDR (list), ++i) | |
5429 | { | |
5430 | Lisp_Object attr = XCAR (list); | |
5431 | int xlfd; | |
5432 | ||
5433 | if (EQ (attr, QCwidth)) | |
5434 | xlfd = XLFD_SWIDTH; | |
5435 | else if (EQ (attr, QCheight)) | |
5436 | xlfd = XLFD_POINT_SIZE; | |
5437 | else if (EQ (attr, QCweight)) | |
5438 | xlfd = XLFD_WEIGHT; | |
5439 | else if (EQ (attr, QCslant)) | |
5440 | xlfd = XLFD_SLANT; | |
5441 | else | |
5442 | break; | |
5443 | ||
5444 | if (indices[i] != 0) | |
5445 | break; | |
5446 | indices[i] = xlfd; | |
5447 | } | |
5448 | ||
5449 | if (!NILP (list) | |
5450 | || i != DIM (indices) | |
5451 | || indices[0] == 0 | |
5452 | || indices[1] == 0 | |
5453 | || indices[2] == 0 | |
5454 | || indices[3] == 0) | |
5455 | signal_error ("Invalid font sort order", order); | |
5456 | ||
5457 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5458 | { | |
5459 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5460 | free_all_realized_faces (Qnil); | |
5461 | } | |
178c5d9c | 5462 | |
82641697 GM |
5463 | return Qnil; |
5464 | } | |
5465 | ||
5466 | ||
5467 | DEFUN ("internal-set-alternative-font-family-alist", | |
5468 | Finternal_set_alternative_font_family_alist, | |
5469 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
5470 | "Define alternative font families to try in face font selection.\n\ | |
5471 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
5472 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
5473 | be found. Value is ALIST.") | |
5474 | (alist) | |
5475 | Lisp_Object alist; | |
5476 | { | |
5477 | CHECK_LIST (alist, 0); | |
5478 | Vface_alternative_font_family_alist = alist; | |
5479 | free_all_realized_faces (Qnil); | |
5480 | return alist; | |
5481 | } | |
5482 | ||
5483 | ||
c3cee013 | 5484 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5485 | |
82641697 GM |
5486 | /* Value is non-zero if FONT is the name of a scalable font. The |
5487 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5488 | are zero for scalable fonts. Intlfonts contain at least one | |
5489 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5490 | just test average width. */ | |
5491 | ||
5492 | static int | |
5493 | font_scalable_p (font) | |
5494 | struct font_name *font; | |
5495 | { | |
5496 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
5497 | return (*s == '0' && *(s + 1) == '\0') |
5498 | #ifdef WINDOWSNT | |
5499 | /* Windows implementation of XLFD is slightly broken for backward | |
5500 | compatibility with previous broken versions, so test for | |
5501 | wildcards as well as 0. */ | |
5502 | || *s == '*' | |
5503 | #endif | |
5504 | ; | |
82641697 GM |
5505 | } |
5506 | ||
5507 | ||
5508 | /* Value is non-zero if FONT1 is a better match for font attributes | |
5509 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5510 | font sort order. COMPARE_PT_P zero means don't compare point | |
5511 | sizes. */ | |
5512 | ||
5513 | static int | |
5514 | better_font_p (values, font1, font2, compare_pt_p) | |
5515 | int *values; | |
5516 | struct font_name *font1, *font2; | |
5517 | int compare_pt_p; | |
5518 | { | |
5519 | int i; | |
178c5d9c | 5520 | |
82641697 GM |
5521 | for (i = 0; i < 4; ++i) |
5522 | { | |
5523 | int xlfd_idx = font_sort_order[i]; | |
5524 | ||
5525 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5526 | { | |
5527 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5528 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
178c5d9c | 5529 | |
82641697 GM |
5530 | if (delta1 > delta2) |
5531 | return 0; | |
5532 | else if (delta1 < delta2) | |
5533 | return 1; | |
5534 | else | |
5535 | { | |
5536 | /* The difference may be equal because, e.g., the face | |
5537 | specifies `italic' but we have only `regular' and | |
5538 | `oblique'. Prefer `oblique' in this case. */ | |
5539 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5540 | && font1->numeric[xlfd_idx] > values[i] | |
5541 | && font2->numeric[xlfd_idx] < values[i]) | |
5542 | return 1; | |
5543 | } | |
5544 | } | |
5545 | } | |
178c5d9c | 5546 | |
82641697 GM |
5547 | return 0; |
5548 | } | |
5549 | ||
5550 | ||
5551 | #if SCALABLE_FONTS | |
5552 | ||
5553 | /* Value is non-zero if FONT is an exact match for face attributes in | |
5554 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
5555 | sort order. */ | |
5556 | ||
5557 | static int | |
5558 | exact_face_match_p (specified, font) | |
5559 | int *specified; | |
5560 | struct font_name *font; | |
5561 | { | |
5562 | int i; | |
178c5d9c | 5563 | |
82641697 GM |
5564 | for (i = 0; i < 4; ++i) |
5565 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
5566 | break; | |
5567 | ||
5568 | return i == 4; | |
5569 | } | |
5570 | ||
5571 | ||
5572 | /* Value is the name of a scaled font, generated from scalable font | |
5573 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5574 | Value is allocated from heap. */ | |
5575 | ||
5576 | static char * | |
5577 | build_scalable_font_name (f, font, specified_pt) | |
5578 | struct frame *f; | |
5579 | struct font_name *font; | |
5580 | int specified_pt; | |
5581 | { | |
5582 | char point_size[20], pixel_size[20]; | |
5583 | int pixel_value; | |
5584 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5585 | double pt; | |
5586 | ||
5587 | /* If scalable font is for a specific resolution, compute | |
5588 | the point size we must specify from the resolution of | |
5589 | the display and the specified resolution of the font. */ | |
5590 | if (font->numeric[XLFD_RESY] != 0) | |
5591 | { | |
5592 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
5593 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
5594 | } | |
5595 | else | |
5596 | { | |
5597 | pt = specified_pt; | |
5598 | pixel_value = resy / 720.0 * pt; | |
5599 | } | |
178c5d9c | 5600 | |
82641697 GM |
5601 | /* Set point size of the font. */ |
5602 | sprintf (point_size, "%d", (int) pt); | |
5603 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5604 | font->numeric[XLFD_POINT_SIZE] = pt; | |
178c5d9c | 5605 | |
82641697 GM |
5606 | /* Set pixel size. */ |
5607 | sprintf (pixel_size, "%d", pixel_value); | |
5608 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5609 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 5610 | |
82641697 GM |
5611 | /* If font doesn't specify its resolution, use the |
5612 | resolution of the display. */ | |
5613 | if (font->numeric[XLFD_RESY] == 0) | |
5614 | { | |
5615 | char buffer[20]; | |
5616 | sprintf (buffer, "%d", (int) resy); | |
5617 | font->fields[XLFD_RESY] = buffer; | |
5618 | font->numeric[XLFD_RESY] = resy; | |
5619 | } | |
178c5d9c | 5620 | |
82641697 GM |
5621 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
5622 | { | |
5623 | char buffer[20]; | |
5624 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5625 | sprintf (buffer, "%d", resx); | |
5626 | font->fields[XLFD_RESX] = buffer; | |
5627 | font->numeric[XLFD_RESX] = resx; | |
5628 | } | |
5629 | ||
5630 | return build_font_name (font); | |
5631 | } | |
5632 | ||
5633 | ||
5634 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5635 | can't run a Lisp function here since this function may be called | |
5636 | with input blocked. */ | |
5637 | ||
5638 | static int | |
5639 | may_use_scalable_font_p (font, name) | |
5640 | struct font_name *font; | |
5641 | char *name; | |
5642 | { | |
5643 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5644 | return 1; | |
5645 | else if (CONSP (Vscalable_fonts_allowed)) | |
5646 | { | |
5647 | Lisp_Object tail, regexp; | |
178c5d9c | 5648 | |
82641697 GM |
5649 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
5650 | { | |
5651 | regexp = XCAR (tail); | |
5652 | if (STRINGP (regexp) | |
5653 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
5654 | return 1; | |
5655 | } | |
5656 | } | |
178c5d9c | 5657 | |
82641697 GM |
5658 | return 0; |
5659 | } | |
5660 | ||
5661 | #endif /* SCALABLE_FONTS != 0 */ | |
5662 | ||
5663 | ||
5664 | /* Return the name of the best matching font for face attributes | |
5665 | ATTRS in the array of font_name structures FONTS which contains | |
5666 | NFONTS elements. Value is a font name which is allocated from | |
5667 | the heap. FONTS is freed by this function. */ | |
5668 | ||
5669 | static char * | |
5670 | best_matching_font (f, attrs, fonts, nfonts) | |
5671 | struct frame *f; | |
5672 | Lisp_Object *attrs; | |
5673 | struct font_name *fonts; | |
5674 | int nfonts; | |
5675 | { | |
5676 | char *font_name; | |
5677 | struct font_name *best; | |
334a2e2a | 5678 | int i, pt = 0; |
82641697 GM |
5679 | int specified[4]; |
5680 | int exact_p; | |
5681 | ||
5682 | if (nfonts == 0) | |
5683 | return NULL; | |
5684 | ||
5685 | /* Make specified font attributes available in `specified', | |
5686 | indexed by sort order. */ | |
5687 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5688 | { | |
5689 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 5690 | |
82641697 GM |
5691 | if (xlfd_idx == XLFD_SWIDTH) |
5692 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5693 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5694 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5695 | else if (xlfd_idx == XLFD_WEIGHT) | |
5696 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5697 | else if (xlfd_idx == XLFD_SLANT) | |
5698 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5699 | else | |
5700 | abort (); | |
5701 | } | |
5702 | ||
5703 | #if SCALABLE_FONTS | |
5704 | ||
5705 | /* Set to 1 */ | |
5706 | exact_p = 0; | |
178c5d9c | 5707 | |
82641697 GM |
5708 | /* Start with the first non-scalable font in the list. */ |
5709 | for (i = 0; i < nfonts; ++i) | |
5710 | if (!font_scalable_p (fonts + i)) | |
5711 | break; | |
5712 | ||
5713 | /* Find the best match among the non-scalable fonts. */ | |
5714 | if (i < nfonts) | |
5715 | { | |
5716 | best = fonts + i; | |
178c5d9c | 5717 | |
82641697 GM |
5718 | for (i = 1; i < nfonts; ++i) |
5719 | if (!font_scalable_p (fonts + i) | |
5720 | && better_font_p (specified, fonts + i, best, 1)) | |
5721 | { | |
5722 | best = fonts + i; | |
5723 | ||
5724 | exact_p = exact_face_match_p (specified, best); | |
5725 | if (exact_p) | |
5726 | break; | |
5727 | } | |
178c5d9c | 5728 | |
82641697 GM |
5729 | } |
5730 | else | |
5731 | best = NULL; | |
5732 | ||
5733 | /* Unless we found an exact match among non-scalable fonts, see if | |
5734 | we can find a better match among scalable fonts. */ | |
5735 | if (!exact_p) | |
5736 | { | |
5737 | /* A scalable font is better if | |
5738 | ||
5739 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 5740 | |
82641697 GM |
5741 | 2. the best non-scalable font doesn't have the required |
5742 | point size, and the scalable fonts weight, slant, swidth | |
5743 | isn't worse. */ | |
5744 | ||
5745 | int non_scalable_has_exact_height_p; | |
5746 | ||
5747 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5748 | non_scalable_has_exact_height_p = 1; | |
5749 | else | |
5750 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 5751 | |
82641697 GM |
5752 | for (i = 0; i < nfonts; ++i) |
5753 | if (font_scalable_p (fonts + i)) | |
5754 | { | |
5755 | if (best == NULL | |
5756 | || better_font_p (specified, fonts + i, best, 0) | |
5757 | || (!non_scalable_has_exact_height_p | |
5758 | && !better_font_p (specified, best, fonts + i, 0))) | |
5759 | best = fonts + i; | |
5760 | } | |
5761 | } | |
5762 | ||
5763 | if (font_scalable_p (best)) | |
5764 | font_name = build_scalable_font_name (f, best, pt); | |
5765 | else | |
5766 | font_name = build_font_name (best); | |
178c5d9c | 5767 | |
82641697 | 5768 | #else /* !SCALABLE_FONTS */ |
178c5d9c | 5769 | |
82641697 GM |
5770 | /* Find the best non-scalable font. */ |
5771 | best = fonts; | |
178c5d9c | 5772 | |
82641697 GM |
5773 | for (i = 1; i < nfonts; ++i) |
5774 | { | |
5775 | xassert (!font_scalable_p (fonts + i)); | |
5776 | if (better_font_p (specified, fonts + i, best, 1)) | |
5777 | best = fonts + i; | |
5778 | } | |
178c5d9c | 5779 | |
82641697 GM |
5780 | font_name = build_font_name (best); |
5781 | ||
5782 | #endif /* !SCALABLE_FONTS */ | |
5783 | ||
5784 | /* Free font_name structures. */ | |
5785 | free_font_names (fonts, nfonts); | |
178c5d9c | 5786 | |
82641697 GM |
5787 | return font_name; |
5788 | } | |
5789 | ||
5790 | ||
5791 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
5792 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
5793 | of font_name structures for the fonts matched. Value is the number | |
5794 | of fonts found. */ | |
5795 | ||
5796 | static int | |
5797 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
5798 | struct frame *f; | |
5799 | Lisp_Object *attrs; | |
39506348 | 5800 | Lisp_Object pattern, family, registry; |
82641697 GM |
5801 | struct font_name **fonts; |
5802 | { | |
5803 | int nfonts; | |
5804 | ||
39506348 KH |
5805 | if (NILP (family) && STRINGP (attrs[LFACE_FAMILY_INDEX])) |
5806 | family = attrs[LFACE_FAMILY_INDEX]; | |
178c5d9c | 5807 | |
82641697 | 5808 | nfonts = font_list (f, pattern, family, registry, fonts); |
178c5d9c | 5809 | |
39506348 | 5810 | if (nfonts == 0 && !NILP (family)) |
82641697 GM |
5811 | { |
5812 | Lisp_Object alter; | |
178c5d9c | 5813 | |
82641697 GM |
5814 | /* Try alternative font families from |
5815 | Vface_alternative_font_family_alist. */ | |
39506348 | 5816 | alter = Fassoc (family, Vface_alternative_font_family_alist); |
82641697 GM |
5817 | if (CONSP (alter)) |
5818 | for (alter = XCDR (alter); | |
5819 | CONSP (alter) && nfonts == 0; | |
5820 | alter = XCDR (alter)) | |
5821 | { | |
5822 | if (STRINGP (XCAR (alter))) | |
39506348 | 5823 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); |
82641697 | 5824 | } |
178c5d9c | 5825 | |
82641697 GM |
5826 | /* Try font family of the default face or "fixed". */ |
5827 | if (nfonts == 0) | |
5828 | { | |
5829 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5830 | if (dflt) | |
39506348 | 5831 | family = dflt->lface[LFACE_FAMILY_INDEX]; |
82641697 | 5832 | else |
39506348 KH |
5833 | family = build_string ("fixed"); |
5834 | nfonts = font_list (f, Qnil, family, registry, fonts); | |
82641697 | 5835 | } |
178c5d9c | 5836 | |
82641697 GM |
5837 | /* Try any family with the given registry. */ |
5838 | if (nfonts == 0) | |
39506348 | 5839 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); |
82641697 GM |
5840 | } |
5841 | ||
5842 | return nfonts; | |
5843 | } | |
5844 | ||
82641697 | 5845 | |
39506348 KH |
5846 | /* Return the fontset id of the base fontset name or alias name given |
5847 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
5848 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
5849 | |
5850 | static int | |
39506348 | 5851 | face_fontset (attrs) |
82641697 GM |
5852 | Lisp_Object *attrs; |
5853 | { | |
39506348 | 5854 | Lisp_Object name; |
82641697 | 5855 | int fontset; |
178c5d9c | 5856 | |
39506348 KH |
5857 | name = attrs[LFACE_FONT_INDEX]; |
5858 | if (!STRINGP (name)) | |
5859 | return -1; | |
5860 | return fs_query_fontset (name, 0); | |
82641697 GM |
5861 | } |
5862 | ||
5863 | ||
39506348 KH |
5864 | /* Choose a name of font to use on frame F to display character C with |
5865 | Lisp face attributes specified by ATTRS. The font name is | |
5866 | determined by the font-related attributes in ATTRS and the name | |
5867 | pattern for C in FONTSET. Value is the font name which is | |
5868 | allocated from the heap and must be freed by the caller, or NULL if | |
5869 | we can get no information about the font name of C. It is assured | |
5870 | that we always get some information for a single byte | |
5871 | character. */ | |
82641697 GM |
5872 | |
5873 | static char * | |
39506348 | 5874 | choose_face_font (f, attrs, fontset, c) |
82641697 GM |
5875 | struct frame *f; |
5876 | Lisp_Object *attrs; | |
39506348 | 5877 | int fontset, c; |
82641697 | 5878 | { |
39506348 | 5879 | Lisp_Object pattern; |
82641697 | 5880 | char *font_name = NULL; |
82641697 GM |
5881 | struct font_name *fonts; |
5882 | int nfonts; | |
178c5d9c | 5883 | |
39506348 KH |
5884 | /* Get (foundry and) family name and registry (and encoding) name of |
5885 | a font for C. */ | |
5886 | pattern = fontset_font_pattern (f, fontset, c); | |
5887 | if (NILP (pattern)) | |
5888 | { | |
5889 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
5890 | return NULL; | |
5891 | } | |
5892 | /* If what we got is a name pattern, return it. */ | |
5893 | if (STRINGP (pattern)) | |
5894 | return xstrdup (XSTRING (pattern)->data); | |
82641697 | 5895 | |
39506348 KH |
5896 | /* Family name may be specified both in ATTRS and car part of |
5897 | PATTERN. The former has higher priority if C is a single byte | |
5898 | character. */ | |
5899 | if (STRINGP (attrs[LFACE_FAMILY_INDEX]) | |
5900 | && SINGLE_BYTE_CHAR_P (c)) | |
5901 | XCAR (pattern) = Qnil; | |
82641697 | 5902 | |
178c5d9c | 5903 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 5904 | best match for the specified face attributes from it. */ |
39506348 KH |
5905 | nfonts = try_font_list (f, attrs, Qnil, XCAR (pattern), XCDR (pattern), |
5906 | &fonts); | |
82641697 GM |
5907 | font_name = best_matching_font (f, attrs, fonts, nfonts); |
5908 | return font_name; | |
5909 | } | |
5910 | ||
c3cee013 | 5911 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5912 | |
5913 | ||
5914 | \f | |
5915 | /*********************************************************************** | |
5916 | Face Realization | |
5917 | ***********************************************************************/ | |
5918 | ||
5919 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5920 | of F don't contain enough information needed to realize the default | |
5921 | face. */ | |
5922 | ||
5923 | static int | |
5924 | realize_basic_faces (f) | |
5925 | struct frame *f; | |
5926 | { | |
5927 | int success_p = 0; | |
17e8204b GM |
5928 | |
5929 | /* Block input there so that we won't be surprised by an X expose | |
5930 | event, for instance without having the faces set up. */ | |
5931 | BLOCK_INPUT; | |
178c5d9c | 5932 | |
82641697 GM |
5933 | if (realize_default_face (f)) |
5934 | { | |
92610620 | 5935 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 5936 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
8bd201d6 | 5937 | realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); |
045dee35 | 5938 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5939 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5940 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5941 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5942 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 5943 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
82641697 GM |
5944 | success_p = 1; |
5945 | } | |
5946 | ||
17e8204b | 5947 | UNBLOCK_INPUT; |
82641697 GM |
5948 | return success_p; |
5949 | } | |
5950 | ||
5951 | ||
5952 | /* Realize the default face on frame F. If the face is not fully | |
5953 | specified, make it fully-specified. Attributes of the default face | |
5954 | that are not explicitly specified are taken from frame parameters. */ | |
5955 | ||
5956 | static int | |
5957 | realize_default_face (f) | |
5958 | struct frame *f; | |
5959 | { | |
5960 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5961 | Lisp_Object lface; | |
5962 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
5963 | Lisp_Object frame_font; |
5964 | struct face *face; | |
5965 | int fontset; | |
5966 | ||
5967 | /* If the `default' face is not yet known, create it. */ | |
5968 | lface = lface_from_face_name (f, Qdefault, 0); | |
5969 | if (NILP (lface)) | |
5970 | { | |
5971 | Lisp_Object frame; | |
5972 | XSETFRAME (frame, f); | |
5973 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5974 | } | |
5975 | ||
c3cee013 JR |
5976 | #ifdef HAVE_WINDOW_SYSTEM |
5977 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
5978 | { |
5979 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5980 | frame_font = Fassq (Qfont, f->param_alist); | |
5981 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5982 | frame_font = XCDR (frame_font); | |
39506348 | 5983 | set_lface_from_font_name (f, lface, frame_font, 0, 1); |
82641697 | 5984 | } |
c3cee013 | 5985 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 5986 | |
44747bd0 | 5987 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5988 | { |
5989 | LFACE_FAMILY (lface) = build_string ("default"); | |
5990 | LFACE_SWIDTH (lface) = Qnormal; | |
5991 | LFACE_HEIGHT (lface) = make_number (1); | |
5992 | LFACE_WEIGHT (lface) = Qnormal; | |
5993 | LFACE_SLANT (lface) = Qnormal; | |
5994 | } | |
178c5d9c | 5995 | |
82641697 GM |
5996 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
5997 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 5998 | |
82641697 GM |
5999 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
6000 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 6001 | |
82641697 GM |
6002 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
6003 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 6004 | |
82641697 GM |
6005 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
6006 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 6007 | |
82641697 GM |
6008 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
6009 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 6010 | |
82641697 GM |
6011 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
6012 | { | |
6013 | /* This function is called so early that colors are not yet | |
6014 | set in the frame parameter list. */ | |
6015 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 6016 | |
82641697 GM |
6017 | if (CONSP (color) && STRINGP (XCDR (color))) |
6018 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 6019 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6020 | return 0; |
f9d2fdc4 | 6021 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6022 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 6023 | else |
82641697 GM |
6024 | abort (); |
6025 | } | |
178c5d9c | 6026 | |
82641697 GM |
6027 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
6028 | { | |
6029 | /* This function is called so early that colors are not yet | |
6030 | set in the frame parameter list. */ | |
6031 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
6032 | if (CONSP (color) && STRINGP (XCDR (color))) | |
6033 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 6034 | else if (FRAME_WINDOW_P (f)) |
82641697 | 6035 | return 0; |
f9d2fdc4 | 6036 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 6037 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 6038 | else |
82641697 GM |
6039 | abort (); |
6040 | } | |
178c5d9c | 6041 | |
82641697 GM |
6042 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
6043 | LFACE_STIPPLE (lface) = Qnil; | |
6044 | ||
6045 | /* Realize the face; it must be fully-specified now. */ | |
6046 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
6047 | check_lface (lface); | |
6048 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 6049 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
6050 | return 1; |
6051 | } | |
6052 | ||
6053 | ||
6054 | /* Realize basic faces other than the default face in face cache C. | |
6055 | SYMBOL is the face name, ID is the face id the realized face must | |
6056 | have. The default face must have been realized already. */ | |
6057 | ||
6058 | static void | |
6059 | realize_named_face (f, symbol, id) | |
6060 | struct frame *f; | |
6061 | Lisp_Object symbol; | |
6062 | int id; | |
6063 | { | |
6064 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6065 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
6066 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6067 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6068 | struct face *new_face; | |
6069 | ||
6070 | /* The default face must exist and be fully specified. */ | |
6071 | get_lface_attributes (f, Qdefault, attrs, 1); | |
6072 | check_lface_attrs (attrs); | |
6073 | xassert (lface_fully_specified_p (attrs)); | |
6074 | ||
6075 | /* If SYMBOL isn't know as a face, create it. */ | |
6076 | if (NILP (lface)) | |
6077 | { | |
6078 | Lisp_Object frame; | |
6079 | XSETFRAME (frame, f); | |
6080 | lface = Finternal_make_lisp_face (symbol, frame); | |
6081 | } | |
6082 | ||
6083 | /* Merge SYMBOL's face with the default face. */ | |
6084 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
2c20458f | 6085 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
82641697 GM |
6086 | |
6087 | /* Realize the face. */ | |
39506348 | 6088 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
6089 | } |
6090 | ||
6091 | ||
6092 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6093 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
6094 | BASE_FACE is a face that has the same attributes. Otherwise, |
6095 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
6096 | ID of face to remove before caching the new face. Value is a | |
6097 | pointer to the newly created realized face. */ | |
82641697 GM |
6098 | |
6099 | static struct face * | |
39506348 KH |
6100 | realize_face (cache, attrs, c, base_face, former_face_id) |
6101 | struct face_cache *cache; | |
82641697 | 6102 | Lisp_Object *attrs; |
39506348 KH |
6103 | int c; |
6104 | struct face *base_face; | |
6105 | int former_face_id; | |
82641697 GM |
6106 | { |
6107 | struct face *face; | |
178c5d9c | 6108 | |
82641697 | 6109 | /* LFACE must be fully specified. */ |
39506348 | 6110 | xassert (cache != NULL); |
82641697 GM |
6111 | check_lface_attrs (attrs); |
6112 | ||
39506348 KH |
6113 | if (former_face_id >= 0 && cache->used > former_face_id) |
6114 | { | |
6115 | /* Remove the former face. */ | |
6116 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
6117 | uncache_face (cache, former_face); | |
6118 | free_realized_face (cache->f, former_face); | |
6119 | } | |
6120 | ||
6121 | if (FRAME_WINDOW_P (cache->f)) | |
6122 | face = realize_x_face (cache, attrs, c, base_face); | |
6123 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) | |
6124 | face = realize_tty_face (cache, attrs, c); | |
82641697 GM |
6125 | else |
6126 | abort (); | |
6127 | ||
39506348 KH |
6128 | /* Insert the new face. */ |
6129 | cache_face (cache, face, lface_hash (attrs)); | |
6130 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 6131 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
6132 | load_face_font (cache->f, face, c); |
6133 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
6134 | return face; |
6135 | } | |
6136 | ||
6137 | ||
6138 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6139 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
6140 | a multibyte character, BASE_FACE is a face that has the same |
6141 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
6142 | doesn't share font with the default face, a fontname is allocated | |
6143 | from the heap and set in `font_name' of the new face, but it is not | |
6144 | yet loaded here. Value is a pointer to the newly created realized | |
6145 | face. */ | |
82641697 GM |
6146 | |
6147 | static struct face * | |
39506348 KH |
6148 | realize_x_face (cache, attrs, c, base_face) |
6149 | struct face_cache *cache; | |
82641697 | 6150 | Lisp_Object *attrs; |
39506348 KH |
6151 | int c; |
6152 | struct face *base_face; | |
82641697 | 6153 | { |
c3cee013 | 6154 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6155 | struct face *face, *default_face; |
78d2079c | 6156 | struct frame *f; |
82641697 | 6157 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 6158 | |
39506348 KH |
6159 | xassert (FRAME_WINDOW_P (cache->f)); |
6160 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 6161 | || base_face); |
82641697 GM |
6162 | |
6163 | /* Allocate a new realized face. */ | |
39506348 KH |
6164 | face = make_realized_face (attrs); |
6165 | ||
6166 | f = cache->f; | |
6167 | ||
6168 | /* If C is a multibyte character, we share all face attirbutes with | |
6169 | BASE_FACE including the realized fontset. But, we must load a | |
6170 | different font. */ | |
6171 | if (!SINGLE_BYTE_CHAR_P (c)) | |
6172 | { | |
6173 | bcopy (base_face, face, sizeof *face); | |
6174 | face->gc = 0; | |
e911049b GM |
6175 | |
6176 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
6177 | face->foreground_defaulted_p = 1; | |
6178 | face->background_defaulted_p = 1; | |
178c5d9c | 6179 | face->underline_defaulted_p = 1; |
e911049b GM |
6180 | face->overline_color_defaulted_p = 1; |
6181 | face->strike_through_color_defaulted_p = 1; | |
6182 | face->box_color_defaulted_p = 1; | |
178c5d9c | 6183 | |
e911049b GM |
6184 | /* to force realize_face to load font */ |
6185 | face->font = NULL; | |
39506348 KH |
6186 | return face; |
6187 | } | |
6188 | ||
6189 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
6190 | |
6191 | /* Determine the font to use. Most of the time, the font will be | |
6192 | the same as the font of the default face, so try that first. */ | |
6193 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6194 | if (default_face | |
39506348 | 6195 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
6196 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
6197 | { | |
6198 | face->font = default_face->font; | |
6199 | face->fontset = default_face->fontset; | |
6200 | face->font_info_id = default_face->font_info_id; | |
6201 | face->font_name = default_face->font_name; | |
39506348 | 6202 | face->ascii_face = face; |
82641697 | 6203 | |
39506348 KH |
6204 | /* But, as we can't share the fontset, make a new realized |
6205 | fontset that has the same base fontset as of the default | |
6206 | face. */ | |
6207 | face->fontset | |
6208 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
6209 | } |
6210 | else | |
6211 | { | |
39506348 | 6212 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
6213 | the base of a new realized fontset. Otherwise, use the same |
6214 | base fontset as of the default face. The base determines | |
6215 | registry and encoding of a font. It may also determine | |
6216 | foundry and family. The other fields of font name pattern | |
6217 | are constructed from ATTRS. */ | |
6218 | int fontset = face_fontset (attrs); | |
6219 | ||
178c5d9c | 6220 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
6221 | fontset = default_face->fontset; |
6222 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 6223 | face->font = NULL; /* to force realize_face to load font */ |
82641697 GM |
6224 | } |
6225 | ||
6226 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 6227 | |
82641697 | 6228 | load_face_colors (f, face, attrs); |
660ed669 | 6229 | |
82641697 GM |
6230 | /* Set up box. */ |
6231 | box = attrs[LFACE_BOX_INDEX]; | |
6232 | if (STRINGP (box)) | |
cb637678 | 6233 | { |
82641697 GM |
6234 | /* A simple box of line width 1 drawn in color given by |
6235 | the string. */ | |
6236 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
6237 | LFACE_BOX_INDEX); | |
6238 | face->box = FACE_SIMPLE_BOX; | |
6239 | face->box_line_width = 1; | |
cb637678 | 6240 | } |
82641697 | 6241 | else if (INTEGERP (box)) |
42120bc7 | 6242 | { |
82641697 GM |
6243 | /* Simple box of specified line width in foreground color of the |
6244 | face. */ | |
6245 | xassert (XINT (box) > 0); | |
6246 | face->box = FACE_SIMPLE_BOX; | |
6247 | face->box_line_width = XFASTINT (box); | |
6248 | face->box_color = face->foreground; | |
6249 | face->box_color_defaulted_p = 1; | |
6250 | } | |
6251 | else if (CONSP (box)) | |
6252 | { | |
6253 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
6254 | being one of `raised' or `sunken'. */ | |
6255 | face->box = FACE_SIMPLE_BOX; | |
6256 | face->box_color = face->foreground; | |
6257 | face->box_color_defaulted_p = 1; | |
6258 | face->box_line_width = 1; | |
6259 | ||
6260 | while (CONSP (box)) | |
42120bc7 | 6261 | { |
82641697 GM |
6262 | Lisp_Object keyword, value; |
6263 | ||
6264 | keyword = XCAR (box); | |
6265 | box = XCDR (box); | |
6266 | ||
6267 | if (!CONSP (box)) | |
6268 | break; | |
6269 | value = XCAR (box); | |
6270 | box = XCDR (box); | |
6271 | ||
6272 | if (EQ (keyword, QCline_width)) | |
6273 | { | |
6274 | if (INTEGERP (value) && XINT (value) > 0) | |
6275 | face->box_line_width = XFASTINT (value); | |
6276 | } | |
6277 | else if (EQ (keyword, QCcolor)) | |
6278 | { | |
6279 | if (STRINGP (value)) | |
6280 | { | |
6281 | face->box_color = load_color (f, face, value, | |
6282 | LFACE_BOX_INDEX); | |
6283 | face->use_box_color_for_shadows_p = 1; | |
6284 | } | |
6285 | } | |
6286 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 6287 | { |
82641697 GM |
6288 | if (EQ (value, Qreleased_button)) |
6289 | face->box = FACE_RAISED_BOX; | |
6290 | else if (EQ (value, Qpressed_button)) | |
6291 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 6292 | } |
42120bc7 RS |
6293 | } |
6294 | } | |
195f798e | 6295 | |
82641697 | 6296 | /* Text underline, overline, strike-through. */ |
178c5d9c | 6297 | |
82641697 | 6298 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 6299 | { |
82641697 GM |
6300 | /* Use default color (same as foreground color). */ |
6301 | face->underline_p = 1; | |
6302 | face->underline_defaulted_p = 1; | |
6303 | face->underline_color = 0; | |
6304 | } | |
6305 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 6306 | { |
82641697 GM |
6307 | /* Use specified color. */ |
6308 | face->underline_p = 1; | |
6309 | face->underline_defaulted_p = 0; | |
6310 | face->underline_color | |
6311 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
6312 | LFACE_UNDERLINE_INDEX); | |
195f798e | 6313 | } |
82641697 | 6314 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 6315 | { |
82641697 GM |
6316 | face->underline_p = 0; |
6317 | face->underline_defaulted_p = 0; | |
6318 | face->underline_color = 0; | |
7b00de84 JB |
6319 | } |
6320 | ||
82641697 GM |
6321 | overline = attrs[LFACE_OVERLINE_INDEX]; |
6322 | if (STRINGP (overline)) | |
cb637678 | 6323 | { |
82641697 GM |
6324 | face->overline_color |
6325 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6326 | LFACE_OVERLINE_INDEX); | |
6327 | face->overline_p = 1; | |
cb637678 | 6328 | } |
82641697 | 6329 | else if (EQ (overline, Qt)) |
cb637678 | 6330 | { |
82641697 GM |
6331 | face->overline_color = face->foreground; |
6332 | face->overline_color_defaulted_p = 1; | |
6333 | face->overline_p = 1; | |
cb637678 JB |
6334 | } |
6335 | ||
82641697 GM |
6336 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6337 | if (STRINGP (strike_through)) | |
6338 | { | |
6339 | face->strike_through_color | |
6340 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6341 | LFACE_STRIKE_THROUGH_INDEX); | |
6342 | face->strike_through_p = 1; | |
6343 | } | |
6344 | else if (EQ (strike_through, Qt)) | |
6345 | { | |
6346 | face->strike_through_color = face->foreground; | |
6347 | face->strike_through_color_defaulted_p = 1; | |
6348 | face->strike_through_p = 1; | |
6349 | } | |
867dd159 | 6350 | |
82641697 GM |
6351 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6352 | if (!NILP (stipple)) | |
6353 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6354 | |
39506348 | 6355 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
82641697 | 6356 | return face; |
c3cee013 | 6357 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 JB |
6358 | } |
6359 | ||
729425b1 | 6360 | |
ae4b4ba5 GM |
6361 | /* Map a specified color of face FACE on frame F to a tty color index. |
6362 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
6363 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
6364 | default foreground/background colors. */ | |
6365 | ||
6366 | static void | |
6367 | map_tty_color (f, face, idx, defaulted) | |
6368 | struct frame *f; | |
6369 | struct face *face; | |
6370 | enum lface_attribute_index idx; | |
6371 | int *defaulted; | |
6372 | { | |
6373 | Lisp_Object frame, color, def; | |
6374 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
6375 | unsigned long default_pixel, default_other_pixel, pixel; | |
6376 | ||
6377 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
6378 | ||
6379 | if (foreground_p) | |
6380 | { | |
6381 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6382 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6383 | } | |
6384 | else | |
6385 | { | |
6386 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6387 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6388 | } | |
6389 | ||
6390 | XSETFRAME (frame, f); | |
6391 | color = face->lface[idx]; | |
6392 | ||
6393 | if (STRINGP (color) | |
6394 | && XSTRING (color)->size | |
6395 | && CONSP (Vtty_defined_color_alist) | |
6396 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
6397 | CONSP (def))) | |
6398 | { | |
6399 | /* Associations in tty-defined-color-alist are of the form | |
6400 | (NAME INDEX R G B). We need the INDEX part. */ | |
6401 | pixel = XINT (XCAR (XCDR (def))); | |
6402 | } | |
6403 | ||
6404 | if (pixel == default_pixel && STRINGP (color)) | |
6405 | { | |
6406 | pixel = load_color (f, face, color, idx); | |
6407 | ||
6408 | #if defined (MSDOS) || defined (WINDOWSNT) | |
6409 | /* If the foreground of the default face is the default color, | |
6410 | use the foreground color defined by the frame. */ | |
6411 | #ifdef MSDOS | |
6412 | if (FRAME_MSDOS_P (f)) | |
6413 | { | |
6414 | #endif /* MSDOS */ | |
6415 | if (pixel == default_pixel | |
6416 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
6417 | { | |
6418 | if (foreground_p) | |
6419 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6420 | else | |
6421 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6422 | face->lface[idx] = tty_color_name (f, pixel); | |
6423 | *defaulted = 1; | |
6424 | } | |
6425 | else if (pixel == default_other_pixel) | |
6426 | { | |
6427 | if (foreground_p) | |
6428 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6429 | else | |
6430 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6431 | face->lface[idx] = tty_color_name (f, pixel); | |
6432 | *defaulted = 1; | |
6433 | } | |
6434 | #ifdef MSDOS | |
6435 | } | |
6436 | #endif | |
6437 | #endif /* MSDOS or WINDOWSNT */ | |
6438 | } | |
6439 | ||
6440 | if (foreground_p) | |
6441 | face->foreground = pixel; | |
6442 | else | |
6443 | face->background = pixel; | |
6444 | } | |
6445 | ||
6446 | ||
82641697 | 6447 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
6448 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
6449 | pointer to the newly created realized face. */ | |
a8517066 | 6450 | |
82641697 | 6451 | static struct face * |
39506348 KH |
6452 | realize_tty_face (cache, attrs, c) |
6453 | struct face_cache *cache; | |
82641697 | 6454 | Lisp_Object *attrs; |
39506348 | 6455 | int c; |
82641697 GM |
6456 | { |
6457 | struct face *face; | |
6458 | int weight, slant; | |
2d764c78 | 6459 | int face_colors_defaulted = 0; |
ae4b4ba5 | 6460 | struct frame *f = cache->f; |
729425b1 | 6461 | |
82641697 | 6462 | /* Frame must be a termcap frame. */ |
39506348 | 6463 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 6464 | |
82641697 | 6465 | /* Allocate a new realized face. */ |
39506348 KH |
6466 | face = make_realized_face (attrs); |
6467 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; | |
82641697 | 6468 | |
178c5d9c | 6469 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
6470 | dimmed text because we want italic text to appear differently |
6471 | and because dimmed text is probably used infrequently. */ | |
6472 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6473 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6474 | ||
6475 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6476 | face->tty_bold_p = 1; | |
6477 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6478 | face->tty_dim_p = 1; | |
6479 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6480 | face->tty_underline_p = 1; | |
6481 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6482 | face->tty_reverse_p = 1; | |
6483 | ||
6484 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
6485 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
6486 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
6487 | ||
2d764c78 EZ |
6488 | /* Swap colors if face is inverse-video. If the colors are taken |
6489 | from the frame colors, they are already inverted, since the | |
6490 | frame-creation function calls x-handle-reverse-video. */ | |
6491 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6492 | { |
6493 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
6494 | face->foreground = face->background; |
6495 | face->background = tem; | |
6496 | } | |
44747bd0 | 6497 | |
a4a76b61 GM |
6498 | if (tty_suppress_bold_inverse_default_colors_p |
6499 | && face->tty_bold_p | |
6500 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
6501 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
6502 | face->tty_bold_p = 0; | |
6503 | ||
82641697 | 6504 | return face; |
729425b1 | 6505 | } |
867dd159 | 6506 | |
82641697 | 6507 | |
a4a76b61 GM |
6508 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
6509 | Ftty_suppress_bold_inverse_default_colors, | |
6510 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
6511 | "Suppress/allow boldness of faces with inverse default colors.\n\ | |
6512 | SUPPRESS non-nil means suppress it.\n\ | |
1beeb7e3 GM |
6513 | This affects bold faces on TTYs whose foreground is the default background\n\ |
6514 | color of the display and whose background is the default foreground color.\n\ | |
41e757a6 GM |
6515 | For such faces, the bold face attribute is ignored if this variable\n\ |
6516 | is non-nil.") | |
a4a76b61 GM |
6517 | (suppress) |
6518 | Lisp_Object suppress; | |
6519 | { | |
6520 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
6521 | ++face_change_count; | |
6522 | return suppress; | |
6523 | } | |
6524 | ||
6525 | ||
82641697 GM |
6526 | \f |
6527 | /*********************************************************************** | |
6528 | Computing Faces | |
6529 | ***********************************************************************/ | |
6530 | ||
6531 | /* Return the ID of the face to use to display character CH with face | |
6532 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6533 | |
6534 | int | |
82641697 | 6535 | compute_char_face (f, ch, prop) |
2e16580f | 6536 | struct frame *f; |
82641697 GM |
6537 | int ch; |
6538 | Lisp_Object prop; | |
2e16580f | 6539 | { |
82641697 | 6540 | int face_id; |
39506348 KH |
6541 | |
6542 | if (NILP (current_buffer->enable_multibyte_characters)) | |
6543 | ch = -1; | |
178c5d9c | 6544 | |
82641697 | 6545 | if (NILP (prop)) |
39506348 KH |
6546 | { |
6547 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6548 | face_id = FACE_FOR_CHAR (f, face, ch); | |
6549 | } | |
82641697 | 6550 | else |
2e16580f | 6551 | { |
82641697 GM |
6552 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6553 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6554 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6555 | merge_face_vector_with_property (f, attrs, prop); | |
39506348 | 6556 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
6557 | } |
6558 | ||
82641697 | 6559 | return face_id; |
2e16580f | 6560 | } |
bc0db68d | 6561 | |
b349f4fb | 6562 | |
82641697 GM |
6563 | /* Return the face ID associated with buffer position POS for |
6564 | displaying ASCII characters. Return in *ENDPTR the position at | |
6565 | which a different face is needed, as far as text properties and | |
6566 | overlays are concerned. W is a window displaying current_buffer. | |
6567 | ||
6568 | REGION_BEG, REGION_END delimit the region, so it can be | |
6569 | highlighted. | |
6f134486 | 6570 | |
82641697 GM |
6571 | LIMIT is a position not to scan beyond. That is to limit the time |
6572 | this function can take. | |
6573 | ||
6574 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6575 | ||
39506348 | 6576 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 6577 | |
cb637678 | 6578 | int |
82641697 GM |
6579 | face_at_buffer_position (w, pos, region_beg, region_end, |
6580 | endptr, limit, mouse) | |
f211082d | 6581 | struct window *w; |
7b7739b1 | 6582 | int pos; |
bc0db68d | 6583 | int region_beg, region_end; |
7b7739b1 | 6584 | int *endptr; |
b349f4fb | 6585 | int limit; |
6f134486 | 6586 | int mouse; |
7b7739b1 | 6587 | { |
82641697 GM |
6588 | struct frame *f = XFRAME (w->frame); |
6589 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6590 | Lisp_Object prop, position; |
82641697 | 6591 | int i, noverlays; |
7b7739b1 | 6592 | Lisp_Object *overlay_vec; |
f211082d | 6593 | Lisp_Object frame; |
f6b98e0b | 6594 | int endpos; |
82641697 GM |
6595 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6596 | Lisp_Object limit1, end; | |
6597 | struct face *default_face; | |
6598 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
6599 | |
6600 | /* W must display the current buffer. We could write this function | |
6601 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6602 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6603 | |
ac22a6c4 | 6604 | XSETFRAME (frame, f); |
82641697 | 6605 | XSETFASTINT (position, pos); |
7b7739b1 | 6606 | |
f6b98e0b | 6607 | endpos = ZV; |
bc0db68d RS |
6608 | if (pos < region_beg && region_beg < endpos) |
6609 | endpos = region_beg; | |
f6b98e0b | 6610 | |
82641697 GM |
6611 | /* Get the `face' or `mouse_face' text property at POS, and |
6612 | determine the next position at which the property changes. */ | |
6f134486 | 6613 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6614 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6615 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6616 | if (INTEGERP (end)) | |
6617 | endpos = XINT (end); | |
6f134486 | 6618 | |
82641697 | 6619 | /* Look at properties from overlays. */ |
b6d40e46 | 6620 | { |
f6b98e0b | 6621 | int next_overlay; |
9516fe94 RS |
6622 | int len; |
6623 | ||
6624 | /* First try with room for 40 overlays. */ | |
6625 | len = 40; | |
6626 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6627 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6628 | &next_overlay, NULL, 0); |
9516fe94 | 6629 | |
82641697 GM |
6630 | /* If there are more than 40, make enough space for all, and try |
6631 | again. */ | |
9516fe94 RS |
6632 | if (noverlays > len) |
6633 | { | |
6634 | len = noverlays; | |
6635 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6636 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6637 | &next_overlay, NULL, 0); |
9516fe94 | 6638 | } |
b6d40e46 | 6639 | |
f6b98e0b JB |
6640 | if (next_overlay < endpos) |
6641 | endpos = next_overlay; | |
b6d40e46 JB |
6642 | } |
6643 | ||
6644 | *endptr = endpos; | |
7b7739b1 | 6645 | |
82641697 | 6646 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 6647 | |
82641697 GM |
6648 | /* Optimize common cases where we can use the default face. */ |
6649 | if (noverlays == 0 | |
6650 | && NILP (prop) | |
39506348 | 6651 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
6652 | return DEFAULT_FACE_ID; |
6653 | ||
6654 | /* Begin with attributes from the default face. */ | |
6655 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6656 | ||
6657 | /* Merge in attributes specified via text properties. */ | |
6658 | if (!NILP (prop)) | |
6659 | merge_face_vector_with_property (f, attrs, prop); | |
6660 | ||
6661 | /* Now merge the overlay data. */ | |
18195655 | 6662 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6663 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6664 | { |
18195655 RS |
6665 | Lisp_Object oend; |
6666 | int oendpos; | |
6667 | ||
6668 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6669 | if (!NILP (prop)) |
6670 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6671 | |
6672 | oend = OVERLAY_END (overlay_vec[i]); | |
6673 | oendpos = OVERLAY_POSITION (oend); | |
6674 | if (oendpos < endpos) | |
6675 | endpos = oendpos; | |
6676 | } | |
6677 | ||
82641697 | 6678 | /* If in the region, merge in the region face. */ |
18195655 RS |
6679 | if (pos >= region_beg && pos < region_end) |
6680 | { | |
82641697 | 6681 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6682 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
178c5d9c | 6683 | |
18195655 RS |
6684 | if (region_end < endpos) |
6685 | endpos = region_end; | |
18195655 RS |
6686 | } |
6687 | ||
6688 | *endptr = endpos; | |
6689 | ||
82641697 | 6690 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6691 | or realize a new one for ASCII characters. */ |
6692 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
6693 | } |
6694 | ||
60573a90 | 6695 | |
82641697 | 6696 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 6697 | window W, for ASCII characters. |
7b7739b1 | 6698 | |
82641697 GM |
6699 | If STRING is an overlay string, it comes from position BUFPOS in |
6700 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6701 | not an overlay string. W must display the current buffer. | |
6702 | REGION_BEG and REGION_END give the start and end positions of the | |
6703 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
6704 | id of the basic face to merge with. It is usually equal to | |
045dee35 | 6705 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID |
82641697 | 6706 | for strings displayed in the mode or top line. |
178c5d9c | 6707 | |
82641697 GM |
6708 | Set *ENDPTR to the next position where to check for faces in |
6709 | STRING; -1 if the face is constant from POS to the end of the | |
6710 | string. | |
18195655 | 6711 | |
82641697 | 6712 | Value is the id of the face to use. The face returned is suitable |
39506348 | 6713 | for displaying ASCII characters. */ |
fffc2367 | 6714 | |
82641697 GM |
6715 | int |
6716 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
6717 | region_end, endptr, base_face_id) | |
6718 | struct window *w; | |
6719 | Lisp_Object string; | |
6720 | int pos, bufpos; | |
6721 | int region_beg, region_end; | |
6722 | int *endptr; | |
6723 | enum face_id base_face_id; | |
660ed669 | 6724 | { |
82641697 GM |
6725 | Lisp_Object prop, position, end, limit; |
6726 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6727 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6728 | struct face *base_face; | |
6729 | int multibyte_p = STRING_MULTIBYTE (string); | |
6730 | ||
6731 | /* Get the value of the face property at the current position within | |
6732 | STRING. Value is nil if there is no face property. */ | |
6733 | XSETFASTINT (position, pos); | |
6734 | prop = Fget_text_property (position, Qface, string); | |
6735 | ||
6736 | /* Get the next position at which to check for faces. Value of end | |
6737 | is nil if face is constant all the way to the end of the string. | |
6738 | Otherwise it is a string position where to check faces next. | |
6739 | Limit is the maximum position up to which to check for property | |
6740 | changes in Fnext_single_property_change. Strings are usually | |
6741 | short, so set the limit to the end of the string. */ | |
6742 | XSETFASTINT (limit, XSTRING (string)->size); | |
6743 | end = Fnext_single_property_change (position, Qface, string, limit); | |
6744 | if (INTEGERP (end)) | |
6745 | *endptr = XFASTINT (end); | |
6746 | else | |
6747 | *endptr = -1; | |
6748 | ||
6749 | base_face = FACE_FROM_ID (f, base_face_id); | |
6750 | xassert (base_face); | |
6751 | ||
6752 | /* Optimize the default case that there is no face property and we | |
6753 | are not in the region. */ | |
6754 | if (NILP (prop) | |
6755 | && (base_face_id != DEFAULT_FACE_ID | |
6756 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6757 | that the region doesn't have to be taken into account. */ | |
6758 | || bufpos <= 0 | |
6759 | || bufpos < region_beg | |
6760 | || bufpos >= region_end) | |
6761 | && (multibyte_p | |
6762 | /* We can't realize faces for different charsets differently | |
6763 | if we don't have fonts, so we can stop here if not working | |
6764 | on a window-system frame. */ | |
6765 | || !FRAME_WINDOW_P (f) | |
39506348 | 6766 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
6767 | return base_face->id; |
6768 | ||
6769 | /* Begin with attributes from the base face. */ | |
6770 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6771 | ||
6772 | /* Merge in attributes specified via text properties. */ | |
6773 | if (!NILP (prop)) | |
6774 | merge_face_vector_with_property (f, attrs, prop); | |
6775 | ||
6776 | /* If in the region, merge in the region face. */ | |
6777 | if (bufpos | |
6778 | && bufpos >= region_beg | |
6779 | && bufpos < region_end) | |
a8517066 | 6780 | { |
82641697 | 6781 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6782 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
a8517066 | 6783 | } |
660ed669 | 6784 | |
82641697 | 6785 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6786 | or realize a new one for ASCII characters. */ |
6787 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
6788 | } |
6789 | ||
6790 | ||
c115973b | 6791 | \f |
82641697 GM |
6792 | /*********************************************************************** |
6793 | Tests | |
6794 | ***********************************************************************/ | |
c115973b | 6795 | |
82641697 | 6796 | #if GLYPH_DEBUG |
c115973b | 6797 | |
82641697 | 6798 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6799 | |
82641697 GM |
6800 | static void |
6801 | dump_realized_face (face) | |
6802 | struct face *face; | |
6803 | { | |
6804 | fprintf (stderr, "ID: %d\n", face->id); | |
6805 | #ifdef HAVE_X_WINDOWS | |
6806 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6807 | #endif | |
6808 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6809 | face->foreground, | |
6810 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6811 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6812 | face->background, | |
6813 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6814 | fprintf (stderr, "font_name: %s (%s)\n", | |
6815 | face->font_name, | |
6816 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6817 | #ifdef HAVE_X_WINDOWS | |
6818 | fprintf (stderr, "font = %p\n", face->font); | |
6819 | #endif | |
6820 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6821 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6822 | fprintf (stderr, "underline: %d (%s)\n", | |
6823 | face->underline_p, | |
6824 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6825 | fprintf (stderr, "hash: %d\n", face->hash); | |
6826 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6827 | } |
6828 | ||
6829 | ||
82641697 GM |
6830 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6831 | (n) | |
6832 | Lisp_Object n; | |
c115973b | 6833 | { |
82641697 | 6834 | if (NILP (n)) |
c115973b | 6835 | { |
82641697 | 6836 | int i; |
178c5d9c | 6837 | |
82641697 GM |
6838 | fprintf (stderr, "font selection order: "); |
6839 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6840 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6841 | fprintf (stderr, "\n"); | |
6842 | ||
6843 | fprintf (stderr, "alternative fonts: "); | |
6844 | debug_print (Vface_alternative_font_family_alist); | |
6845 | fprintf (stderr, "\n"); | |
178c5d9c | 6846 | |
c0617987 | 6847 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6848 | Fdump_face (make_number (i)); |
c115973b JB |
6849 | } |
6850 | else | |
f5e278c7 | 6851 | { |
82641697 GM |
6852 | struct face *face; |
6853 | CHECK_NUMBER (n, 0); | |
c0617987 | 6854 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6855 | if (face == NULL) |
6856 | error ("Not a valid face"); | |
6857 | dump_realized_face (face); | |
f5e278c7 | 6858 | } |
178c5d9c | 6859 | |
c115973b JB |
6860 | return Qnil; |
6861 | } | |
b5c53576 | 6862 | |
b5c53576 | 6863 | |
82641697 GM |
6864 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6865 | 0, 0, 0, "") | |
6866 | () | |
b5c53576 | 6867 | { |
82641697 GM |
6868 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6869 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6870 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6871 | return Qnil; | |
b5c53576 RS |
6872 | } |
6873 | ||
82641697 GM |
6874 | #endif /* GLYPH_DEBUG != 0 */ |
6875 | ||
b5c53576 | 6876 | |
c115973b | 6877 | \f |
82641697 GM |
6878 | /*********************************************************************** |
6879 | Initialization | |
6880 | ***********************************************************************/ | |
cb637678 | 6881 | |
c115973b | 6882 | void |
f211082d | 6883 | syms_of_xfaces () |
c115973b | 6884 | { |
f211082d JB |
6885 | Qface = intern ("face"); |
6886 | staticpro (&Qface); | |
fef04523 GM |
6887 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
6888 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
6889 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
6890 | staticpro (&Qframe_update_face_colors); | |
178c5d9c | 6891 | |
82641697 GM |
6892 | /* Lisp face attribute keywords. */ |
6893 | QCfamily = intern (":family"); | |
6894 | staticpro (&QCfamily); | |
6895 | QCheight = intern (":height"); | |
6896 | staticpro (&QCheight); | |
6897 | QCweight = intern (":weight"); | |
6898 | staticpro (&QCweight); | |
6899 | QCslant = intern (":slant"); | |
6900 | staticpro (&QCslant); | |
6901 | QCunderline = intern (":underline"); | |
6902 | staticpro (&QCunderline); | |
6903 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 6904 | staticpro (&QCinverse_video); |
82641697 GM |
6905 | QCreverse_video = intern (":reverse-video"); |
6906 | staticpro (&QCreverse_video); | |
6907 | QCforeground = intern (":foreground"); | |
6908 | staticpro (&QCforeground); | |
6909 | QCbackground = intern (":background"); | |
6910 | staticpro (&QCbackground); | |
6911 | QCstipple = intern (":stipple");; | |
6912 | staticpro (&QCstipple); | |
6913 | QCwidth = intern (":width"); | |
6914 | staticpro (&QCwidth); | |
6915 | QCfont = intern (":font"); | |
6916 | staticpro (&QCfont); | |
6917 | QCbold = intern (":bold"); | |
6918 | staticpro (&QCbold); | |
6919 | QCitalic = intern (":italic"); | |
6920 | staticpro (&QCitalic); | |
6921 | QCoverline = intern (":overline"); | |
6922 | staticpro (&QCoverline); | |
6923 | QCstrike_through = intern (":strike-through"); | |
6924 | staticpro (&QCstrike_through); | |
6925 | QCbox = intern (":box"); | |
6926 | staticpro (&QCbox); | |
2c20458f MB |
6927 | QCinherit = intern (":inherit"); |
6928 | staticpro (&QCinherit); | |
82641697 GM |
6929 | |
6930 | /* Symbols used for Lisp face attribute values. */ | |
6931 | QCcolor = intern (":color"); | |
6932 | staticpro (&QCcolor); | |
6933 | QCline_width = intern (":line-width"); | |
6934 | staticpro (&QCline_width); | |
6935 | QCstyle = intern (":style"); | |
6936 | staticpro (&QCstyle); | |
6937 | Qreleased_button = intern ("released-button"); | |
6938 | staticpro (&Qreleased_button); | |
6939 | Qpressed_button = intern ("pressed-button"); | |
6940 | staticpro (&Qpressed_button); | |
6941 | Qnormal = intern ("normal"); | |
6942 | staticpro (&Qnormal); | |
6943 | Qultra_light = intern ("ultra-light"); | |
6944 | staticpro (&Qultra_light); | |
6945 | Qextra_light = intern ("extra-light"); | |
6946 | staticpro (&Qextra_light); | |
6947 | Qlight = intern ("light"); | |
6948 | staticpro (&Qlight); | |
6949 | Qsemi_light = intern ("semi-light"); | |
6950 | staticpro (&Qsemi_light); | |
6951 | Qsemi_bold = intern ("semi-bold"); | |
6952 | staticpro (&Qsemi_bold); | |
6953 | Qbold = intern ("bold"); | |
6954 | staticpro (&Qbold); | |
6955 | Qextra_bold = intern ("extra-bold"); | |
6956 | staticpro (&Qextra_bold); | |
6957 | Qultra_bold = intern ("ultra-bold"); | |
6958 | staticpro (&Qultra_bold); | |
6959 | Qoblique = intern ("oblique"); | |
6960 | staticpro (&Qoblique); | |
6961 | Qitalic = intern ("italic"); | |
6962 | staticpro (&Qitalic); | |
6963 | Qreverse_oblique = intern ("reverse-oblique"); | |
6964 | staticpro (&Qreverse_oblique); | |
6965 | Qreverse_italic = intern ("reverse-italic"); | |
6966 | staticpro (&Qreverse_italic); | |
6967 | Qultra_condensed = intern ("ultra-condensed"); | |
6968 | staticpro (&Qultra_condensed); | |
6969 | Qextra_condensed = intern ("extra-condensed"); | |
6970 | staticpro (&Qextra_condensed); | |
6971 | Qcondensed = intern ("condensed"); | |
6972 | staticpro (&Qcondensed); | |
6973 | Qsemi_condensed = intern ("semi-condensed"); | |
6974 | staticpro (&Qsemi_condensed); | |
6975 | Qsemi_expanded = intern ("semi-expanded"); | |
6976 | staticpro (&Qsemi_expanded); | |
6977 | Qexpanded = intern ("expanded"); | |
6978 | staticpro (&Qexpanded); | |
6979 | Qextra_expanded = intern ("extra-expanded"); | |
6980 | staticpro (&Qextra_expanded); | |
6981 | Qultra_expanded = intern ("ultra-expanded"); | |
6982 | staticpro (&Qultra_expanded); | |
6983 | Qbackground_color = intern ("background-color"); | |
6984 | staticpro (&Qbackground_color); | |
6985 | Qforeground_color = intern ("foreground-color"); | |
6986 | staticpro (&Qforeground_color); | |
6987 | Qunspecified = intern ("unspecified"); | |
6988 | staticpro (&Qunspecified); | |
6989 | ||
92610620 GM |
6990 | Qface_alias = intern ("face-alias"); |
6991 | staticpro (&Qface_alias); | |
82641697 GM |
6992 | Qdefault = intern ("default"); |
6993 | staticpro (&Qdefault); | |
9ea173e8 GM |
6994 | Qtool_bar = intern ("tool-bar"); |
6995 | staticpro (&Qtool_bar); | |
82641697 GM |
6996 | Qregion = intern ("region"); |
6997 | staticpro (&Qregion); | |
8bd201d6 GM |
6998 | Qfringe = intern ("fringe"); |
6999 | staticpro (&Qfringe); | |
045dee35 GM |
7000 | Qheader_line = intern ("header-line"); |
7001 | staticpro (&Qheader_line); | |
8bd201d6 GM |
7002 | Qscroll_bar = intern ("scroll-bar"); |
7003 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
7004 | Qmenu = intern ("menu"); |
7005 | staticpro (&Qmenu); | |
8bd201d6 GM |
7006 | Qcursor = intern ("cursor"); |
7007 | staticpro (&Qcursor); | |
7008 | Qborder = intern ("border"); | |
7009 | staticpro (&Qborder); | |
7010 | Qmouse = intern ("mouse"); | |
7011 | staticpro (&Qmouse); | |
2d764c78 EZ |
7012 | Qtty_color_desc = intern ("tty-color-desc"); |
7013 | staticpro (&Qtty_color_desc); | |
7014 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
7015 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
7016 | Qtty_color_alist = intern ("tty-color-alist"); |
7017 | staticpro (&Qtty_color_alist); | |
82641697 | 7018 | |
dbc968b8 GM |
7019 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
7020 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
7021 | Vface_alternative_font_family_alist = Qnil; |
7022 | staticpro (&Vface_alternative_font_family_alist); | |
7023 | ||
82641697 GM |
7024 | defsubr (&Sinternal_make_lisp_face); |
7025 | defsubr (&Sinternal_lisp_face_p); | |
7026 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 7027 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 7028 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 7029 | #endif |
ea4fa0af GM |
7030 | defsubr (&Scolor_gray_p); |
7031 | defsubr (&Scolor_supported_p); | |
82641697 GM |
7032 | defsubr (&Sinternal_get_lisp_face_attribute); |
7033 | defsubr (&Sinternal_lisp_face_attribute_values); | |
7034 | defsubr (&Sinternal_lisp_face_equal_p); | |
7035 | defsubr (&Sinternal_lisp_face_empty_p); | |
7036 | defsubr (&Sinternal_copy_lisp_face); | |
7037 | defsubr (&Sinternal_merge_in_global_face); | |
7038 | defsubr (&Sface_font); | |
7039 | defsubr (&Sframe_face_alist); | |
7040 | defsubr (&Sinternal_set_font_selection_order); | |
7041 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
7042 | #if GLYPH_DEBUG | |
7043 | defsubr (&Sdump_face); | |
7044 | defsubr (&Sshow_face_resources); | |
7045 | #endif /* GLYPH_DEBUG */ | |
7046 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 7047 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 7048 | |
38426dee | 7049 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
7050 | defsubr (&Sdump_colors); |
7051 | #endif | |
7052 | ||
057df17c GM |
7053 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
7054 | "*Limit for font matching.\n\ | |
7055 | If an integer > 0, font matching functions won't load more than\n\ | |
7056 | that number of fonts when searching for a matching font."); | |
7057 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
7058 | ||
82641697 GM |
7059 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
7060 | "List of global face definitions (for internal use only.)"); | |
7061 | Vface_new_frame_defaults = Qnil; | |
178c5d9c | 7062 | |
82641697 GM |
7063 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
7064 | "*Default stipple pattern used on monochrome displays.\n\ | |
7065 | This stipple pattern is used on monochrome displays\n\ | |
7066 | instead of shades of gray for a face background color.\n\ | |
7067 | See `set-face-stipple' for possible values for this variable."); | |
7068 | Vface_default_stipple = build_string ("gray3"); | |
7069 | ||
ae4b4ba5 GM |
7070 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
7071 | "An alist of defined terminal colors and their RGB values."); | |
7072 | Vtty_defined_color_alist = Qnil; | |
7073 | ||
82641697 | 7074 | #if SCALABLE_FONTS |
178c5d9c | 7075 | |
82641697 GM |
7076 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
7077 | "Allowed scalable fonts.\n\ | |
7078 | A value of nil means don't allow any scalable fonts.\n\ | |
7079 | A value of t means allow any scalable font.\n\ | |
7080 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
7081 | scaled if its name matches a regular expression in the list."); | |
c3cee013 JR |
7082 | #ifdef WINDOWSNT |
7083 | /* Windows uses mainly truetype fonts, so disallowing scalable fonts | |
7084 | by default limits the fonts available severely. */ | |
7085 | Vscalable_fonts_allowed = Qt; | |
7086 | #else | |
82641697 | 7087 | Vscalable_fonts_allowed = Qnil; |
c3cee013 | 7088 | #endif |
82641697 | 7089 | #endif /* SCALABLE_FONTS */ |
b5c53576 | 7090 | |
c3cee013 | 7091 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 7092 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
7093 | defsubr (&Sx_list_fonts); |
7094 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 7095 | defsubr (&Sx_family_fonts); |
82641697 | 7096 | defsubr (&Sx_font_family_list); |
c3cee013 | 7097 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 7098 | } |