Commit | Line | Data |
---|---|---|
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 | ||
68c45bf0 | 182 | #include <config.h> |
c115973b JB |
183 | #include <sys/types.h> |
184 | #include <sys/stat.h> | |
c115973b | 185 | #include "lisp.h" |
a8517066 | 186 | #include "charset.h" |
b5c53576 RS |
187 | #include "frame.h" |
188 | ||
f7cc6849 DL |
189 | #ifdef HAVE_WINDOW_SYSTEM |
190 | #include "fontset.h" | |
d12d0a9b GM |
191 | #endif /* HAVE_WINDOW_SYSTEM */ |
192 | ||
87485d6f | 193 | #ifdef HAVE_X_WINDOWS |
c115973b | 194 | #include "xterm.h" |
c7ae3284 GM |
195 | #ifdef USE_MOTIF |
196 | #include <Xm/Xm.h> | |
197 | #include <Xm/XmStrDefs.h> | |
198 | #endif /* USE_MOTIF */ | |
d12d0a9b | 199 | #endif /* HAVE_X_WINDOWS */ |
82641697 | 200 | |
87485d6f MW |
201 | #ifdef MSDOS |
202 | #include "dosfns.h" | |
203 | #endif | |
82641697 | 204 | |
c3cee013 JR |
205 | #ifdef WINDOWSNT |
206 | #include "w32term.h" | |
207 | #include "fontset.h" | |
208 | /* Redefine X specifics to W32 equivalents to avoid cluttering the | |
209 | code with #ifdef blocks. */ | |
210 | #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO | |
211 | #define x_display_info w32_display_info | |
212 | #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE | |
213 | #define check_x check_w32 | |
214 | #define x_list_fonts w32_list_fonts | |
215 | #define GCGraphicsExposures 0 | |
216 | /* For historic reasons, FONT_WIDTH refers to average width on W32, | |
217 | not maximum as on X. Redefine here. */ | |
218 | #define FONT_WIDTH FONT_MAX_WIDTH | |
d12d0a9b | 219 | #endif /* WINDOWSNT */ |
c3cee013 | 220 | |
c115973b | 221 | #include "buffer.h" |
f211082d | 222 | #include "dispextern.h" |
357f32fc | 223 | #include "blockinput.h" |
b6d40e46 | 224 | #include "window.h" |
bde7c500 | 225 | #include "intervals.h" |
c115973b | 226 | |
87485d6f | 227 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
228 | |
229 | /* Compensate for a bug in Xos.h on some systems, on which it requires | |
657070ac JB |
230 | time.h. On some such systems, Xos.h tries to redefine struct |
231 | timeval and struct timezone if USG is #defined while it is | |
232 | #included. */ | |
657070ac | 233 | |
82641697 | 234 | #ifdef XOS_NEEDS_TIME_H |
e11d186d | 235 | #include <time.h> |
657070ac JB |
236 | #undef USG |
237 | #include <X11/Xos.h> | |
238 | #define USG | |
e11d186d | 239 | #define __TIMEVAL__ |
82641697 GM |
240 | #else /* not XOS_NEEDS_TIME_H */ |
241 | #include <X11/Xos.h> | |
242 | #endif /* not XOS_NEEDS_TIME_H */ | |
e11d186d | 243 | |
82641697 | 244 | #endif /* HAVE_X_WINDOWS */ |
7a4d2269 | 245 | |
82641697 | 246 | #include <stdio.h> |
82641697 GM |
247 | #include <ctype.h> |
248 | #include "keyboard.h" | |
c115973b | 249 | |
82641697 GM |
250 | #ifndef max |
251 | #define max(A, B) ((A) > (B) ? (A) : (B)) | |
252 | #define min(A, B) ((A) < (B) ? (A) : (B)) | |
253 | #define abs(X) ((X) < 0 ? -(X) : (X)) | |
657070ac | 254 | #endif |
cb637678 | 255 | |
82641697 GM |
256 | /* Non-zero if face attribute ATTR is unspecified. */ |
257 | ||
258 | #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified) | |
259 | ||
260 | /* Value is the number of elements of VECTOR. */ | |
261 | ||
262 | #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) | |
263 | ||
178c5d9c | 264 | /* Make a copy of string S on the stack using alloca. Value is a pointer |
82641697 GM |
265 | to the copy. */ |
266 | ||
267 | #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S)) | |
bc0db68d | 268 | |
82641697 GM |
269 | /* Make a copy of the contents of Lisp string S on the stack using |
270 | alloca. Value is a pointer to the copy. */ | |
271 | ||
272 | #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data) | |
273 | ||
178c5d9c | 274 | /* Size of hash table of realized faces in face caches (should be a |
82641697 GM |
275 | prime number). */ |
276 | ||
277 | #define FACE_CACHE_BUCKETS_SIZE 1001 | |
278 | ||
2d764c78 | 279 | /* A definition of XColor for non-X frames. */ |
ae4b4ba5 | 280 | |
2d764c78 | 281 | #ifndef HAVE_X_WINDOWS |
ae4b4ba5 GM |
282 | |
283 | typedef struct | |
284 | { | |
2d764c78 EZ |
285 | unsigned long pixel; |
286 | unsigned short red, green, blue; | |
287 | char flags; | |
288 | char pad; | |
ae4b4ba5 GM |
289 | } |
290 | XColor; | |
291 | ||
292 | #endif /* not HAVE_X_WINDOWS */ | |
2d764c78 | 293 | |
82641697 GM |
294 | /* Keyword symbols used for face attribute names. */ |
295 | ||
296 | Lisp_Object QCfamily, QCheight, QCweight, QCslant, QCunderline; | |
297 | Lisp_Object QCinverse_video, QCforeground, QCbackground, QCstipple; | |
298 | Lisp_Object QCwidth, QCfont, QCbold, QCitalic; | |
299 | Lisp_Object QCreverse_video; | |
2c20458f | 300 | Lisp_Object QCoverline, QCstrike_through, QCbox, QCinherit; |
82641697 GM |
301 | |
302 | /* Symbols used for attribute values. */ | |
303 | ||
304 | Lisp_Object Qnormal, Qbold, Qultra_light, Qextra_light, Qlight; | |
305 | Lisp_Object Qsemi_light, Qsemi_bold, Qextra_bold, Qultra_bold; | |
306 | Lisp_Object Qoblique, Qitalic, Qreverse_oblique, Qreverse_italic; | |
307 | Lisp_Object Qultra_condensed, Qextra_condensed, Qcondensed; | |
308 | Lisp_Object Qsemi_condensed, Qsemi_expanded, Qexpanded, Qextra_expanded; | |
309 | Lisp_Object Qultra_expanded; | |
310 | Lisp_Object Qreleased_button, Qpressed_button; | |
311 | Lisp_Object QCstyle, QCcolor, QCline_width; | |
ef917393 EZ |
312 | Lisp_Object Qunspecified; |
313 | ||
314 | char unspecified_fg[] = "unspecified-fg", unspecified_bg[] = "unspecified-bg"; | |
82641697 | 315 | |
92610620 GM |
316 | /* The name of the function to call when the background of the frame |
317 | has changed, frame_update_face_colors. */ | |
318 | ||
319 | Lisp_Object Qframe_update_face_colors; | |
320 | ||
82641697 GM |
321 | /* Names of basic faces. */ |
322 | ||
fb4927c4 | 323 | Lisp_Object Qdefault, Qtool_bar, Qregion, Qfringe; |
c7ae3284 | 324 | Lisp_Object Qheader_line, Qscroll_bar, Qcursor, Qborder, Qmouse, Qmenu; |
fb4927c4 | 325 | extern Lisp_Object Qmode_line; |
8bd201d6 | 326 | |
92610620 GM |
327 | /* The symbol `face-alias'. A symbols having that property is an |
328 | alias for another face. Value of the property is the name of | |
329 | the aliased face. */ | |
330 | ||
331 | Lisp_Object Qface_alias; | |
332 | ||
8bd201d6 GM |
333 | /* Names of frame parameters related to faces. */ |
334 | ||
335 | extern Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; | |
336 | extern Lisp_Object Qborder_color, Qcursor_color, Qmouse_color; | |
82641697 GM |
337 | |
338 | /* Default stipple pattern used on monochrome displays. This stipple | |
339 | pattern is used on monochrome displays instead of shades of gray | |
340 | for a face background color. See `set-face-stipple' for possible | |
341 | values for this variable. */ | |
342 | ||
343 | Lisp_Object Vface_default_stipple; | |
344 | ||
82641697 GM |
345 | /* Alist of alternative font families. Each element is of the form |
346 | (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded, | |
347 | try FAMILY1, then FAMILY2, ... */ | |
348 | ||
349 | Lisp_Object Vface_alternative_font_family_alist; | |
350 | ||
351 | /* Allowed scalable fonts. A value of nil means don't allow any | |
352 | scalable fonts. A value of t means allow the use of any scalable | |
353 | font. Otherwise, value must be a list of regular expressions. A | |
354 | font may be scaled if its name matches a regular expression in the | |
355 | list. */ | |
356 | ||
82641697 | 357 | Lisp_Object Vscalable_fonts_allowed; |
82641697 | 358 | |
057df17c GM |
359 | /* Maximum number of fonts to consider in font_list. If not an |
360 | integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */ | |
361 | ||
362 | Lisp_Object Vfont_list_limit; | |
363 | #define DEFAULT_FONT_LIST_LIMIT 100 | |
364 | ||
82641697 GM |
365 | /* The symbols `foreground-color' and `background-color' which can be |
366 | used as part of a `face' property. This is for compatibility with | |
367 | Emacs 20.2. */ | |
368 | ||
369 | Lisp_Object Qforeground_color, Qbackground_color; | |
370 | ||
371 | /* The symbols `face' and `mouse-face' used as text properties. */ | |
7b7739b1 | 372 | |
ff83dbb1 | 373 | Lisp_Object Qface; |
82641697 GM |
374 | extern Lisp_Object Qmouse_face; |
375 | ||
376 | /* Error symbol for wrong_type_argument in load_pixmap. */ | |
377 | ||
fef04523 | 378 | Lisp_Object Qbitmap_spec_p; |
f211082d | 379 | |
82641697 GM |
380 | /* Alist of global face definitions. Each element is of the form |
381 | (FACE . LFACE) where FACE is a symbol naming a face and LFACE | |
382 | is a Lisp vector of face attributes. These faces are used | |
383 | to initialize faces for new frames. */ | |
cb637678 | 384 | |
82641697 | 385 | Lisp_Object Vface_new_frame_defaults; |
18195655 | 386 | |
82641697 | 387 | /* The next ID to assign to Lisp faces. */ |
cb637678 | 388 | |
82641697 | 389 | static int next_lface_id; |
c115973b | 390 | |
82641697 | 391 | /* A vector mapping Lisp face Id's to face names. */ |
c115973b | 392 | |
82641697 GM |
393 | static Lisp_Object *lface_id_to_name; |
394 | static int lface_id_to_name_size; | |
c115973b | 395 | |
ae4b4ba5 GM |
396 | /* TTY color-related functions (defined in tty-colors.el). */ |
397 | ||
2d764c78 | 398 | Lisp_Object Qtty_color_desc, Qtty_color_by_index; |
82641697 | 399 | |
ae4b4ba5 GM |
400 | /* The name of the function used to compute colors on TTYs. */ |
401 | ||
402 | Lisp_Object Qtty_color_alist; | |
403 | ||
404 | /* An alist of defined terminal colors and their RGB values. */ | |
405 | ||
406 | Lisp_Object Vtty_defined_color_alist; | |
407 | ||
82641697 GM |
408 | /* Counter for calls to clear_face_cache. If this counter reaches |
409 | CLEAR_FONT_TABLE_COUNT, and a frame has more than | |
410 | CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */ | |
411 | ||
412 | static int clear_font_table_count; | |
413 | #define CLEAR_FONT_TABLE_COUNT 100 | |
414 | #define CLEAR_FONT_TABLE_NFONTS 10 | |
415 | ||
416 | /* Non-zero means face attributes have been changed since the last | |
417 | redisplay. Used in redisplay_internal. */ | |
418 | ||
419 | int face_change_count; | |
420 | ||
a4a76b61 GM |
421 | /* Non-zero means don't display bold text if a face's foreground |
422 | and background colors are the inverse of the default colors of the | |
423 | display. This is a kluge to suppress `bold black' foreground text | |
424 | which is hard to read on an LCD monitor. */ | |
425 | ||
426 | int tty_suppress_bold_inverse_default_colors_p; | |
427 | ||
dbc968b8 GM |
428 | /* A list of the form `((x . y))' used to avoid consing in |
429 | Finternal_set_lisp_face_attribute. */ | |
430 | ||
431 | static Lisp_Object Vparam_value_alist; | |
432 | ||
82641697 GM |
433 | /* The total number of colors currently allocated. */ |
434 | ||
435 | #if GLYPH_DEBUG | |
436 | static int ncolors_allocated; | |
437 | static int npixmaps_allocated; | |
438 | static int ngcs; | |
439 | #endif | |
440 | ||
441 | ||
442 | \f | |
443 | /* Function prototypes. */ | |
444 | ||
445 | struct font_name; | |
446 | struct table_entry; | |
447 | ||
ae4b4ba5 GM |
448 | static void map_tty_color P_ ((struct frame *, struct face *, |
449 | enum lface_attribute_index, int *)); | |
c7ae3284 | 450 | static Lisp_Object resolve_face_name P_ ((Lisp_Object)); |
82641697 GM |
451 | static int may_use_scalable_font_p P_ ((struct font_name *, char *)); |
452 | static void set_font_frame_param P_ ((Lisp_Object, Lisp_Object)); | |
453 | static int better_font_p P_ ((int *, struct font_name *, struct font_name *, | |
454 | int)); | |
455 | static int first_font_matching P_ ((struct frame *f, char *, | |
456 | struct font_name *)); | |
457 | static int x_face_list_fonts P_ ((struct frame *, char *, | |
458 | struct font_name *, int, int, int)); | |
459 | static int font_scalable_p P_ ((struct font_name *)); | |
82641697 GM |
460 | static int get_lface_attributes P_ ((struct frame *, Lisp_Object, Lisp_Object *, int)); |
461 | static int load_pixmap P_ ((struct frame *, Lisp_Object, unsigned *, unsigned *)); | |
82641697 GM |
462 | static unsigned char *xstrlwr P_ ((unsigned char *)); |
463 | static void signal_error P_ ((char *, Lisp_Object)); | |
82641697 | 464 | static struct frame *frame_or_selected_frame P_ ((Lisp_Object, int)); |
39506348 | 465 | static void load_face_font P_ ((struct frame *, struct face *, int)); |
82641697 GM |
466 | static void load_face_colors P_ ((struct frame *, struct face *, Lisp_Object *)); |
467 | static void free_face_colors P_ ((struct frame *, struct face *)); | |
468 | static int face_color_gray_p P_ ((struct frame *, char *)); | |
469 | static char *build_font_name P_ ((struct font_name *)); | |
470 | static void free_font_names P_ ((struct font_name *, int)); | |
471 | static int sorted_font_list P_ ((struct frame *, char *, | |
472 | int (*cmpfn) P_ ((const void *, const void *)), | |
473 | struct font_name **)); | |
39506348 KH |
474 | static int font_list P_ ((struct frame *, Lisp_Object, Lisp_Object, |
475 | Lisp_Object, struct font_name **)); | |
476 | static int try_font_list P_ ((struct frame *, Lisp_Object *, Lisp_Object, | |
477 | Lisp_Object, Lisp_Object, struct font_name **)); | |
82641697 | 478 | static int cmp_font_names P_ ((const void *, const void *)); |
39506348 KH |
479 | static struct face *realize_face P_ ((struct face_cache *, Lisp_Object *, int, |
480 | struct face *, int)); | |
82641697 | 481 | static struct face *realize_x_face P_ ((struct face_cache *, |
39506348 | 482 | Lisp_Object *, int, struct face *)); |
82641697 GM |
483 | static struct face *realize_tty_face P_ ((struct face_cache *, |
484 | Lisp_Object *, int)); | |
485 | static int realize_basic_faces P_ ((struct frame *)); | |
486 | static int realize_default_face P_ ((struct frame *)); | |
487 | static void realize_named_face P_ ((struct frame *, Lisp_Object, int)); | |
488 | static int lface_fully_specified_p P_ ((Lisp_Object *)); | |
489 | static int lface_equal_p P_ ((Lisp_Object *, Lisp_Object *)); | |
490 | static unsigned hash_string_case_insensitive P_ ((Lisp_Object)); | |
491 | static unsigned lface_hash P_ ((Lisp_Object *)); | |
492 | static int lface_same_font_attributes_p P_ ((Lisp_Object *, Lisp_Object *)); | |
493 | static struct face_cache *make_face_cache P_ ((struct frame *)); | |
494 | static void free_realized_face P_ ((struct frame *, struct face *)); | |
495 | static void clear_face_gcs P_ ((struct face_cache *)); | |
496 | static void free_face_cache P_ ((struct face_cache *)); | |
497 | static int face_numeric_weight P_ ((Lisp_Object)); | |
498 | static int face_numeric_slant P_ ((Lisp_Object)); | |
499 | static int face_numeric_swidth P_ ((Lisp_Object)); | |
39506348 KH |
500 | static int face_fontset P_ ((Lisp_Object *)); |
501 | static char *choose_face_font P_ ((struct frame *, Lisp_Object *, int, int)); | |
2c20458f MB |
502 | static void merge_face_vectors P_ ((struct frame *, Lisp_Object *, Lisp_Object*, Lisp_Object)); |
503 | static void merge_face_inheritance P_ ((struct frame *f, Lisp_Object, | |
504 | Lisp_Object *, Lisp_Object)); | |
82641697 GM |
505 | static void merge_face_vector_with_property P_ ((struct frame *, Lisp_Object *, |
506 | Lisp_Object)); | |
39506348 KH |
507 | static int set_lface_from_font_name P_ ((struct frame *, Lisp_Object, |
508 | Lisp_Object, int, int)); | |
82641697 | 509 | static Lisp_Object lface_from_face_name P_ ((struct frame *, Lisp_Object, int)); |
39506348 | 510 | static struct face *make_realized_face P_ ((Lisp_Object *)); |
82641697 GM |
511 | static void free_realized_faces P_ ((struct face_cache *)); |
512 | static char *best_matching_font P_ ((struct frame *, Lisp_Object *, | |
513 | struct font_name *, int)); | |
514 | static void cache_face P_ ((struct face_cache *, struct face *, unsigned)); | |
515 | static void uncache_face P_ ((struct face_cache *, struct face *)); | |
516 | static int xlfd_numeric_slant P_ ((struct font_name *)); | |
517 | static int xlfd_numeric_weight P_ ((struct font_name *)); | |
518 | static int xlfd_numeric_swidth P_ ((struct font_name *)); | |
519 | static Lisp_Object xlfd_symbolic_slant P_ ((struct font_name *)); | |
520 | static Lisp_Object xlfd_symbolic_weight P_ ((struct font_name *)); | |
521 | static Lisp_Object xlfd_symbolic_swidth P_ ((struct font_name *)); | |
522 | static int xlfd_fixed_p P_ ((struct font_name *)); | |
523 | static int xlfd_numeric_value P_ ((struct table_entry *, int, struct font_name *, | |
524 | int, int)); | |
525 | static Lisp_Object xlfd_symbolic_value P_ ((struct table_entry *, int, | |
6fc556fd KR |
526 | struct font_name *, int, |
527 | Lisp_Object)); | |
82641697 GM |
528 | static struct table_entry *xlfd_lookup_field_contents P_ ((struct table_entry *, int, |
529 | struct font_name *, int)); | |
530 | ||
c3cee013 | 531 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
532 | |
533 | static int split_font_name P_ ((struct frame *, struct font_name *, int)); | |
534 | static int xlfd_point_size P_ ((struct frame *, struct font_name *)); | |
535 | static void sort_fonts P_ ((struct frame *, struct font_name *, int, | |
536 | int (*cmpfn) P_ ((const void *, const void *)))); | |
537 | static GC x_create_gc P_ ((struct frame *, unsigned long, XGCValues *)); | |
538 | static void x_free_gc P_ ((struct frame *, GC)); | |
539 | static void clear_font_table P_ ((struct frame *)); | |
540 | ||
c3cee013 JR |
541 | #ifdef WINDOWSNT |
542 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); | |
543 | #endif /* WINDOWSNT */ | |
544 | ||
545 | #endif /* HAVE_WINDOW_SYSTEM */ | |
c115973b | 546 | |
cb637678 | 547 | \f |
82641697 GM |
548 | /*********************************************************************** |
549 | Utilities | |
550 | ***********************************************************************/ | |
c115973b | 551 | |
87485d6f | 552 | #ifdef HAVE_X_WINDOWS |
cb637678 | 553 | |
a435fc2a GM |
554 | #ifdef DEBUG_X_COLORS |
555 | ||
556 | /* The following is a poor mans infrastructure for debugging X color | |
557 | allocation problems on displays with PseudoColor-8. Some X servers | |
558 | like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement | |
559 | color reference counts completely so that they don't signal an | |
560 | error when a color is freed whose reference count is already 0. | |
561 | Other X servers do. To help me debug this, the following code | |
562 | implements a simple reference counting schema of its own, for a | |
563 | single display/screen. --gerd. */ | |
564 | ||
565 | /* Reference counts for pixel colors. */ | |
566 | ||
567 | int color_count[256]; | |
568 | ||
569 | /* Register color PIXEL as allocated. */ | |
570 | ||
571 | void | |
572 | register_color (pixel) | |
573 | unsigned long pixel; | |
574 | { | |
575 | xassert (pixel < 256); | |
576 | ++color_count[pixel]; | |
577 | } | |
578 | ||
579 | ||
580 | /* Register color PIXEL as deallocated. */ | |
581 | ||
582 | void | |
583 | unregister_color (pixel) | |
584 | unsigned long pixel; | |
585 | { | |
586 | xassert (pixel < 256); | |
587 | if (color_count[pixel] > 0) | |
588 | --color_count[pixel]; | |
589 | else | |
590 | abort (); | |
591 | } | |
592 | ||
593 | ||
594 | /* Register N colors from PIXELS as deallocated. */ | |
595 | ||
596 | void | |
597 | unregister_colors (pixels, n) | |
598 | unsigned long *pixels; | |
599 | int n; | |
600 | { | |
601 | int i; | |
602 | for (i = 0; i < n; ++i) | |
603 | unregister_color (pixels[i]); | |
604 | } | |
605 | ||
08dc08dc GM |
606 | |
607 | DEFUN ("dump-colors", Fdump_colors, Sdump_colors, 0, 0, 0, | |
608 | "Dump currently allocated colors and their reference counts to stderr.") | |
609 | () | |
610 | { | |
611 | int i, n; | |
612 | ||
613 | fputc ('\n', stderr); | |
178c5d9c | 614 | |
08dc08dc GM |
615 | for (i = n = 0; i < sizeof color_count / sizeof color_count[0]; ++i) |
616 | if (color_count[i]) | |
617 | { | |
618 | fprintf (stderr, "%3d: %5d", i, color_count[i]); | |
619 | ++n; | |
620 | if (n % 5 == 0) | |
621 | fputc ('\n', stderr); | |
622 | else | |
623 | fputc ('\t', stderr); | |
624 | } | |
625 | ||
626 | if (n % 5 != 0) | |
627 | fputc ('\n', stderr); | |
628 | return Qnil; | |
629 | } | |
630 | ||
a435fc2a GM |
631 | #endif /* DEBUG_X_COLORS */ |
632 | ||
d12d0a9b | 633 | |
1f847cf8 GM |
634 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel |
635 | color values. Interrupt input must be blocked when this function | |
636 | is called. */ | |
637 | ||
638 | void | |
639 | x_free_colors (f, pixels, npixels) | |
640 | struct frame *f; | |
641 | unsigned long *pixels; | |
642 | int npixels; | |
643 | { | |
644 | int class = FRAME_X_DISPLAY_INFO (f)->visual->class; | |
645 | ||
646 | /* If display has an immutable color map, freeing colors is not | |
647 | necessary and some servers don't allow it. So don't do it. */ | |
648 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
649 | { | |
08dc08dc GM |
650 | XFreeColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), |
651 | pixels, npixels, 0); | |
a435fc2a | 652 | #ifdef DEBUG_X_COLORS |
08dc08dc | 653 | unregister_colors (pixels, npixels); |
a435fc2a | 654 | #endif |
08dc08dc GM |
655 | } |
656 | } | |
657 | ||
658 | ||
659 | /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel | |
660 | color values. Interrupt input must be blocked when this function | |
661 | is called. */ | |
662 | ||
663 | void | |
664 | x_free_dpy_colors (dpy, screen, cmap, pixels, npixels) | |
665 | Display *dpy; | |
666 | Screen *screen; | |
667 | Colormap cmap; | |
668 | unsigned long *pixels; | |
669 | int npixels; | |
670 | { | |
671 | struct x_display_info *dpyinfo = x_display_info_for_display (dpy); | |
672 | int class = dpyinfo->visual->class; | |
673 | ||
674 | /* If display has an immutable color map, freeing colors is not | |
675 | necessary and some servers don't allow it. So don't do it. */ | |
676 | if (class != StaticColor && class != StaticGray && class != TrueColor) | |
677 | { | |
678 | XFreeColors (dpy, cmap, pixels, npixels, 0); | |
a435fc2a | 679 | #ifdef DEBUG_X_COLORS |
08dc08dc | 680 | unregister_colors (pixels, npixels); |
a435fc2a | 681 | #endif |
1f847cf8 GM |
682 | } |
683 | } | |
684 | ||
08dc08dc | 685 | |
82641697 GM |
686 | /* Create and return a GC for use on frame F. GC values and mask |
687 | are given by XGCV and MASK. */ | |
688 | ||
689 | static INLINE GC | |
690 | x_create_gc (f, mask, xgcv) | |
cb637678 | 691 | struct frame *f; |
82641697 GM |
692 | unsigned long mask; |
693 | XGCValues *xgcv; | |
c115973b JB |
694 | { |
695 | GC gc; | |
82641697 GM |
696 | BLOCK_INPUT; |
697 | gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), mask, xgcv); | |
698 | UNBLOCK_INPUT; | |
699 | IF_DEBUG (++ngcs); | |
700 | return gc; | |
701 | } | |
c115973b | 702 | |
42120bc7 | 703 | |
82641697 GM |
704 | /* Free GC which was used on frame F. */ |
705 | ||
706 | static INLINE void | |
707 | x_free_gc (f, gc) | |
708 | struct frame *f; | |
709 | GC gc; | |
710 | { | |
660ed669 | 711 | BLOCK_INPUT; |
82641697 GM |
712 | xassert (--ngcs >= 0); |
713 | XFreeGC (FRAME_X_DISPLAY (f), gc); | |
714 | UNBLOCK_INPUT; | |
715 | } | |
660ed669 | 716 | |
82641697 | 717 | #endif /* HAVE_X_WINDOWS */ |
660ed669 | 718 | |
c3cee013 JR |
719 | #ifdef WINDOWSNT |
720 | /* W32 emulation of GCs */ | |
721 | ||
722 | static INLINE GC | |
723 | x_create_gc (f, mask, xgcv) | |
724 | struct frame *f; | |
725 | unsigned long mask; | |
726 | XGCValues *xgcv; | |
727 | { | |
728 | GC gc; | |
729 | BLOCK_INPUT; | |
730 | gc = XCreateGC (NULL, FRAME_W32_WINDOW (f), mask, xgcv); | |
731 | UNBLOCK_INPUT; | |
732 | IF_DEBUG (++ngcs); | |
733 | return gc; | |
734 | } | |
735 | ||
736 | ||
737 | /* Free GC which was used on frame F. */ | |
738 | ||
739 | static INLINE void | |
740 | x_free_gc (f, gc) | |
741 | struct frame *f; | |
742 | GC gc; | |
743 | { | |
744 | BLOCK_INPUT; | |
745 | xassert (--ngcs >= 0); | |
746 | xfree (gc); | |
747 | UNBLOCK_INPUT; | |
748 | } | |
749 | ||
750 | #endif /* WINDOWSNT */ | |
660ed669 | 751 | |
82641697 GM |
752 | /* Like stricmp. Used to compare parts of font names which are in |
753 | ISO8859-1. */ | |
754 | ||
755 | int | |
756 | xstricmp (s1, s2) | |
757 | unsigned char *s1, *s2; | |
758 | { | |
759 | while (*s1 && *s2) | |
95887807 | 760 | { |
82641697 GM |
761 | unsigned char c1 = tolower (*s1); |
762 | unsigned char c2 = tolower (*s2); | |
763 | if (c1 != c2) | |
764 | return c1 < c2 ? -1 : 1; | |
765 | ++s1, ++s2; | |
95887807 | 766 | } |
cd0bb842 | 767 | |
82641697 GM |
768 | if (*s1 == 0) |
769 | return *s2 == 0 ? 0 : -1; | |
770 | return 1; | |
771 | } | |
660ed669 | 772 | |
660ed669 | 773 | |
82641697 | 774 | /* Like strlwr, which might not always be available. */ |
42120bc7 | 775 | |
82641697 GM |
776 | static unsigned char * |
777 | xstrlwr (s) | |
778 | unsigned char *s; | |
779 | { | |
780 | unsigned char *p = s; | |
781 | ||
782 | for (p = s; *p; ++p) | |
783 | *p = tolower (*p); | |
784 | ||
785 | return s; | |
c115973b | 786 | } |
cb637678 | 787 | |
42120bc7 | 788 | |
82641697 GM |
789 | /* Signal `error' with message S, and additional argument ARG. */ |
790 | ||
791 | static void | |
792 | signal_error (s, arg) | |
793 | char *s; | |
794 | Lisp_Object arg; | |
42120bc7 | 795 | { |
82641697 GM |
796 | Fsignal (Qerror, Fcons (build_string (s), Fcons (arg, Qnil))); |
797 | } | |
42120bc7 | 798 | |
82641697 | 799 | |
c0617987 GM |
800 | /* If FRAME is nil, return a pointer to the selected frame. |
801 | Otherwise, check that FRAME is a live frame, and return a pointer | |
802 | to it. NPARAM is the parameter number of FRAME, for | |
803 | CHECK_LIVE_FRAME. This is here because it's a frequent pattern in | |
804 | Lisp function definitions. */ | |
82641697 GM |
805 | |
806 | static INLINE struct frame * | |
807 | frame_or_selected_frame (frame, nparam) | |
808 | Lisp_Object frame; | |
809 | int nparam; | |
810 | { | |
82641697 | 811 | if (NILP (frame)) |
c0617987 | 812 | frame = selected_frame; |
178c5d9c | 813 | |
c0617987 GM |
814 | CHECK_LIVE_FRAME (frame, nparam); |
815 | return XFRAME (frame); | |
42120bc7 | 816 | } |
82641697 | 817 | |
42120bc7 | 818 | \f |
82641697 GM |
819 | /*********************************************************************** |
820 | Frames and faces | |
821 | ***********************************************************************/ | |
cd0bb842 | 822 | |
82641697 | 823 | /* Initialize face cache and basic faces for frame F. */ |
cb637678 | 824 | |
82641697 GM |
825 | void |
826 | init_frame_faces (f) | |
cb637678 | 827 | struct frame *f; |
cb637678 | 828 | { |
82641697 GM |
829 | /* Make a face cache, if F doesn't have one. */ |
830 | if (FRAME_FACE_CACHE (f) == NULL) | |
831 | FRAME_FACE_CACHE (f) = make_face_cache (f); | |
178c5d9c | 832 | |
c3cee013 | 833 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 834 | /* Make the image cache. */ |
c3cee013 | 835 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
836 | { |
837 | if (FRAME_X_IMAGE_CACHE (f) == NULL) | |
838 | FRAME_X_IMAGE_CACHE (f) = make_image_cache (); | |
839 | ++FRAME_X_IMAGE_CACHE (f)->refcount; | |
840 | } | |
c3cee013 | 841 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 | 842 | |
178c5d9c | 843 | /* Realize basic faces. Must have enough information in frame |
82641697 GM |
844 | parameters to realize basic faces at this point. */ |
845 | #ifdef HAVE_X_WINDOWS | |
846 | if (!FRAME_X_P (f) || FRAME_X_WINDOW (f)) | |
c3cee013 JR |
847 | #endif |
848 | #ifdef WINDOWSNT | |
849 | if (!FRAME_WINDOW_P (f) || FRAME_W32_WINDOW (f)) | |
82641697 GM |
850 | #endif |
851 | if (!realize_basic_faces (f)) | |
852 | abort (); | |
853 | } | |
cb637678 | 854 | |
cb637678 | 855 | |
82641697 | 856 | /* Free face cache of frame F. Called from Fdelete_frame. */ |
cb637678 | 857 | |
82641697 GM |
858 | void |
859 | free_frame_faces (f) | |
cb637678 | 860 | struct frame *f; |
cb637678 | 861 | { |
82641697 | 862 | struct face_cache *face_cache = FRAME_FACE_CACHE (f); |
178c5d9c | 863 | |
82641697 GM |
864 | if (face_cache) |
865 | { | |
866 | free_face_cache (face_cache); | |
867 | FRAME_FACE_CACHE (f) = NULL; | |
868 | } | |
660ed669 | 869 | |
c3cee013 JR |
870 | #ifdef HAVE_WINDOW_SYSTEM |
871 | if (FRAME_WINDOW_P (f)) | |
195f798e | 872 | { |
82641697 GM |
873 | struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f); |
874 | if (image_cache) | |
195f798e | 875 | { |
82641697 GM |
876 | --image_cache->refcount; |
877 | if (image_cache->refcount == 0) | |
878 | free_image_cache (f); | |
195f798e RS |
879 | } |
880 | } | |
c3cee013 | 881 | #endif /* HAVE_WINDOW_SYSTEM */ |
cb637678 JB |
882 | } |
883 | ||
82641697 | 884 | |
8bd201d6 GM |
885 | /* Clear face caches, and recompute basic faces for frame F. Call |
886 | this after changing frame parameters on which those faces depend, | |
887 | or when realized faces have been freed due to changing attributes | |
888 | of named faces. */ | |
82641697 GM |
889 | |
890 | void | |
891 | recompute_basic_faces (f) | |
cb637678 | 892 | struct frame *f; |
cb637678 | 893 | { |
82641697 GM |
894 | if (FRAME_FACE_CACHE (f)) |
895 | { | |
8bd201d6 | 896 | clear_face_cache (0); |
18df9369 GM |
897 | if (!realize_basic_faces (f)) |
898 | abort (); | |
82641697 GM |
899 | } |
900 | } | |
cb637678 | 901 | |
cb637678 | 902 | |
82641697 GM |
903 | /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means |
904 | try to free unused fonts, too. */ | |
cb637678 | 905 | |
adfea139 | 906 | void |
82641697 GM |
907 | clear_face_cache (clear_fonts_p) |
908 | int clear_fonts_p; | |
cb637678 | 909 | { |
c3cee013 | 910 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
911 | Lisp_Object tail, frame; |
912 | struct frame *f; | |
828e66d1 | 913 | |
82641697 GM |
914 | if (clear_fonts_p |
915 | || ++clear_font_table_count == CLEAR_FONT_TABLE_COUNT) | |
828e66d1 | 916 | { |
82641697 GM |
917 | /* From time to time see if we can unload some fonts. This also |
918 | frees all realized faces on all frames. Fonts needed by | |
919 | faces will be loaded again when faces are realized again. */ | |
920 | clear_font_table_count = 0; | |
195f798e | 921 | |
82641697 | 922 | FOR_EACH_FRAME (tail, frame) |
195f798e | 923 | { |
82641697 | 924 | f = XFRAME (frame); |
c3cee013 | 925 | if (FRAME_WINDOW_P (f) |
82641697 | 926 | && FRAME_X_DISPLAY_INFO (f)->n_fonts > CLEAR_FONT_TABLE_NFONTS) |
195f798e | 927 | { |
82641697 GM |
928 | free_all_realized_faces (frame); |
929 | clear_font_table (f); | |
930 | } | |
931 | } | |
932 | } | |
933 | else | |
934 | { | |
935 | /* Clear GCs of realized faces. */ | |
936 | FOR_EACH_FRAME (tail, frame) | |
937 | { | |
938 | f = XFRAME (frame); | |
c3cee013 | 939 | if (FRAME_WINDOW_P (f)) |
82641697 GM |
940 | { |
941 | clear_face_gcs (FRAME_FACE_CACHE (f)); | |
942 | clear_image_cache (f, 0); | |
195f798e RS |
943 | } |
944 | } | |
828e66d1 | 945 | } |
c3cee013 | 946 | #endif /* HAVE_WINDOW_SYSTEM */ |
cd0bb842 RS |
947 | } |
948 | ||
82641697 GM |
949 | |
950 | DEFUN ("clear-face-cache", Fclear_face_cache, Sclear_face_cache, 0, 1, 0, | |
951 | "Clear face caches on all frames.\n\ | |
952 | Optional THOROUGHLY non-nil means try to free unused fonts, too.") | |
953 | (thorougly) | |
954 | Lisp_Object thorougly; | |
cd0bb842 | 955 | { |
82641697 | 956 | clear_face_cache (!NILP (thorougly)); |
ae4b4ba5 GM |
957 | ++face_change_count; |
958 | ++windows_or_buffers_changed; | |
82641697 GM |
959 | return Qnil; |
960 | } | |
961 | ||
962 | ||
963 | ||
c3cee013 | 964 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
965 | |
966 | ||
39506348 KH |
967 | /* Remove those fonts from the font table of frame F exept for the |
968 | default ASCII font for the frame. Called from clear_face_cache | |
969 | from time to time. */ | |
82641697 GM |
970 | |
971 | static void | |
972 | clear_font_table (f) | |
973 | struct frame *f; | |
974 | { | |
975 | struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); | |
82641697 GM |
976 | int i; |
977 | ||
c3cee013 | 978 | xassert (FRAME_WINDOW_P (f)); |
82641697 | 979 | |
39506348 KH |
980 | /* Free those fonts that are not used by the frame F as the default. */ |
981 | for (i = 0; i < dpyinfo->n_fonts; ++i) | |
982 | { | |
983 | struct font_info *font_info = dpyinfo->font_table + i; | |
82641697 | 984 | |
39506348 KH |
985 | if (!font_info->name |
986 | || font_info->font == FRAME_FONT (f)) | |
987 | continue; | |
82641697 | 988 | |
39506348 KH |
989 | /* Free names. */ |
990 | if (font_info->full_name != font_info->name) | |
991 | xfree (font_info->full_name); | |
992 | xfree (font_info->name); | |
82641697 | 993 | |
39506348 KH |
994 | /* Free the font. */ |
995 | BLOCK_INPUT; | |
c3cee013 | 996 | #ifdef HAVE_X_WINDOWS |
39506348 | 997 | XFreeFont (dpyinfo->display, font_info->font); |
c3cee013 JR |
998 | #endif |
999 | #ifdef WINDOWSNT | |
39506348 | 1000 | w32_unload_font (dpyinfo, font_info->font); |
c3cee013 | 1001 | #endif |
39506348 | 1002 | UNBLOCK_INPUT; |
82641697 | 1003 | |
39506348 KH |
1004 | /* Mark font table slot free. */ |
1005 | font_info->font = NULL; | |
1006 | font_info->name = font_info->full_name = NULL; | |
1007 | } | |
82641697 GM |
1008 | } |
1009 | ||
c3cee013 | 1010 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1011 | |
1012 | ||
1013 | \f | |
1014 | /*********************************************************************** | |
1015 | X Pixmaps | |
1016 | ***********************************************************************/ | |
1017 | ||
c3cee013 | 1018 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1019 | |
fef04523 GM |
1020 | DEFUN ("bitmap-spec-p", Fbitmap_spec_p, Sbitmap_spec_p, 1, 1, 0, |
1021 | "Value is non-nil if OBJECT is a valid bitmap specification.\n\ | |
1022 | A bitmap specification is either a string, a file name, or a list\n\ | |
1023 | (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\ | |
c7ae3284 GM |
1024 | HEIGHT is its height, and DATA is a string containing the bits of\n\ |
1025 | the pixmap. Bits are stored row by row, each row occupies\n\ | |
1026 | (WIDTH + 7)/8 bytes.") | |
82641697 GM |
1027 | (object) |
1028 | Lisp_Object object; | |
1029 | { | |
c7ae3284 | 1030 | int pixmap_p = 0; |
178c5d9c | 1031 | |
c7ae3284 GM |
1032 | if (STRINGP (object)) |
1033 | /* If OBJECT is a string, it's a file name. */ | |
1034 | pixmap_p = 1; | |
1035 | else if (CONSP (object)) | |
1036 | { | |
1037 | /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and | |
1038 | HEIGHT must be integers > 0, and DATA must be string large | |
1039 | enough to hold a bitmap of the specified size. */ | |
1040 | Lisp_Object width, height, data; | |
1041 | ||
1042 | height = width = data = Qnil; | |
178c5d9c | 1043 | |
c7ae3284 GM |
1044 | if (CONSP (object)) |
1045 | { | |
1046 | width = XCAR (object); | |
1047 | object = XCDR (object); | |
1048 | if (CONSP (object)) | |
1049 | { | |
1050 | height = XCAR (object); | |
1051 | object = XCDR (object); | |
1052 | if (CONSP (object)) | |
1053 | data = XCAR (object); | |
1054 | } | |
1055 | } | |
cd0bb842 | 1056 | |
c7ae3284 GM |
1057 | if (NATNUMP (width) && NATNUMP (height) && STRINGP (data)) |
1058 | { | |
1059 | int bytes_per_row = ((XFASTINT (width) + BITS_PER_CHAR - 1) | |
1060 | / BITS_PER_CHAR); | |
6fc556fd | 1061 | if (STRING_BYTES (XSTRING (data)) >= bytes_per_row * XINT (height)) |
c7ae3284 GM |
1062 | pixmap_p = 1; |
1063 | } | |
1064 | } | |
1065 | ||
1066 | return pixmap_p ? Qt : Qnil; | |
cd0bb842 RS |
1067 | } |
1068 | ||
cd0bb842 | 1069 | |
82641697 GM |
1070 | /* Load a bitmap according to NAME (which is either a file name or a |
1071 | pixmap spec) for use on frame F. Value is the bitmap_id (see | |
1072 | xfns.c). If NAME is nil, return with a bitmap id of zero. If | |
1073 | bitmap cannot be loaded, display a message saying so, and return | |
1074 | zero. Store the bitmap width in *W_PTR and its height in *H_PTR, | |
1075 | if these pointers are not null. */ | |
cd0bb842 | 1076 | |
82641697 | 1077 | static int |
cd0bb842 | 1078 | load_pixmap (f, name, w_ptr, h_ptr) |
7812a96f | 1079 | FRAME_PTR f; |
cd0bb842 RS |
1080 | Lisp_Object name; |
1081 | unsigned int *w_ptr, *h_ptr; | |
1082 | { | |
1083 | int bitmap_id; | |
1084 | Lisp_Object tem; | |
1085 | ||
1086 | if (NILP (name)) | |
82641697 | 1087 | return 0; |
cd0bb842 | 1088 | |
fef04523 | 1089 | tem = Fbitmap_spec_p (name); |
cd0bb842 | 1090 | if (NILP (tem)) |
fef04523 | 1091 | wrong_type_argument (Qbitmap_spec_p, name); |
cd0bb842 RS |
1092 | |
1093 | BLOCK_INPUT; | |
cd0bb842 RS |
1094 | if (CONSP (name)) |
1095 | { | |
1096 | /* Decode a bitmap spec into a bitmap. */ | |
1097 | ||
1098 | int h, w; | |
1099 | Lisp_Object bits; | |
1100 | ||
1101 | w = XINT (Fcar (name)); | |
1102 | h = XINT (Fcar (Fcdr (name))); | |
1103 | bits = Fcar (Fcdr (Fcdr (name))); | |
1104 | ||
1105 | bitmap_id = x_create_bitmap_from_data (f, XSTRING (bits)->data, | |
1106 | w, h); | |
1107 | } | |
1108 | else | |
1109 | { | |
1110 | /* It must be a string -- a file name. */ | |
1111 | bitmap_id = x_create_bitmap_from_file (f, name); | |
1112 | } | |
1113 | UNBLOCK_INPUT; | |
1114 | ||
7812a96f | 1115 | if (bitmap_id < 0) |
82641697 | 1116 | { |
1b8f7fbc | 1117 | add_to_log ("Invalid or undefined bitmap %s", name, Qnil); |
82641697 | 1118 | bitmap_id = 0; |
cd0bb842 | 1119 | |
82641697 GM |
1120 | if (w_ptr) |
1121 | *w_ptr = 0; | |
1122 | if (h_ptr) | |
1123 | *h_ptr = 0; | |
1124 | } | |
1125 | else | |
1126 | { | |
1127 | #if GLYPH_DEBUG | |
1128 | ++npixmaps_allocated; | |
1129 | #endif | |
1130 | if (w_ptr) | |
1131 | *w_ptr = x_bitmap_width (f, bitmap_id); | |
1132 | ||
1133 | if (h_ptr) | |
1134 | *h_ptr = x_bitmap_height (f, bitmap_id); | |
1135 | } | |
cd0bb842 RS |
1136 | |
1137 | return bitmap_id; | |
cb637678 | 1138 | } |
87485d6f | 1139 | |
c3cee013 | 1140 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 1141 | |
87485d6f | 1142 | |
82641697 GM |
1143 | \f |
1144 | /*********************************************************************** | |
1145 | Minimum font bounds | |
1146 | ***********************************************************************/ | |
1147 | ||
c3cee013 | 1148 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1149 | |
d6fc0a22 GM |
1150 | /* Update the line_height of frame F. Return non-zero if line height |
1151 | changes. */ | |
87485d6f | 1152 | |
82641697 GM |
1153 | int |
1154 | frame_update_line_height (f) | |
87485d6f | 1155 | struct frame *f; |
87485d6f | 1156 | { |
39506348 | 1157 | int line_height, changed_p; |
178c5d9c | 1158 | |
39506348 | 1159 | line_height = FONT_HEIGHT (FRAME_FONT (f)); |
c3cee013 JR |
1160 | changed_p = line_height != FRAME_LINE_HEIGHT (f); |
1161 | FRAME_LINE_HEIGHT (f) = line_height; | |
82641697 | 1162 | return changed_p; |
87485d6f MW |
1163 | } |
1164 | ||
c3cee013 | 1165 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1166 | |
1167 | \f | |
1168 | /*********************************************************************** | |
1169 | Fonts | |
1170 | ***********************************************************************/ | |
1171 | ||
c3cee013 | 1172 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 1173 | |
39506348 KH |
1174 | /* Load font of face FACE which is used on frame F to display |
1175 | character C. The name of the font to load is determined by lface | |
1176 | and fontset of FACE. */ | |
82641697 GM |
1177 | |
1178 | static void | |
39506348 | 1179 | load_face_font (f, face, c) |
82641697 GM |
1180 | struct frame *f; |
1181 | struct face *face; | |
39506348 | 1182 | int c; |
87485d6f | 1183 | { |
82641697 | 1184 | struct font_info *font_info = NULL; |
39506348 | 1185 | char *font_name; |
178c5d9c | 1186 | |
82641697 | 1187 | face->font_info_id = -1; |
82641697 | 1188 | face->font = NULL; |
39506348 KH |
1189 | |
1190 | font_name = choose_face_font (f, face->lface, face->fontset, c); | |
1191 | if (!font_name) | |
1192 | return; | |
1193 | ||
82641697 | 1194 | BLOCK_INPUT; |
39506348 | 1195 | font_info = FS_LOAD_FACE_FONT (f, c, font_name, face); |
82641697 GM |
1196 | UNBLOCK_INPUT; |
1197 | ||
1198 | if (font_info) | |
1199 | { | |
39506348 | 1200 | face->font_info_id = font_info->font_idx; |
82641697 GM |
1201 | face->font = font_info->font; |
1202 | face->font_name = font_info->full_name; | |
39506348 | 1203 | if (face->gc) |
82641697 | 1204 | { |
39506348 KH |
1205 | x_free_gc (f, face->gc); |
1206 | face->gc = 0; | |
82641697 GM |
1207 | } |
1208 | } | |
39506348 | 1209 | else |
1b8f7fbc | 1210 | add_to_log ("Unable to load font %s", |
7dbdfcf8 | 1211 | build_string (font_name), Qnil); |
39506348 | 1212 | xfree (font_name); |
87485d6f MW |
1213 | } |
1214 | ||
c3cee013 | 1215 | #endif /* HAVE_WINDOW_SYSTEM */ |
87485d6f | 1216 | |
87485d6f | 1217 | |
82641697 GM |
1218 | \f |
1219 | /*********************************************************************** | |
1220 | X Colors | |
1221 | ***********************************************************************/ | |
1222 | ||
2d764c78 | 1223 | /* A version of defined_color for non-X frames. */ |
08dc08dc | 1224 | |
2d764c78 EZ |
1225 | int |
1226 | tty_defined_color (f, color_name, color_def, alloc) | |
1227 | struct frame *f; | |
1228 | char *color_name; | |
1229 | XColor *color_def; | |
1230 | int alloc; | |
1231 | { | |
1232 | Lisp_Object color_desc; | |
ae4b4ba5 GM |
1233 | unsigned long color_idx = FACE_TTY_DEFAULT_COLOR; |
1234 | unsigned long red = 0, green = 0, blue = 0; | |
2d764c78 EZ |
1235 | int status = 1; |
1236 | ||
1237 | if (*color_name && !NILP (Ffboundp (Qtty_color_desc))) | |
1238 | { | |
a61c12d5 EZ |
1239 | Lisp_Object frame; |
1240 | ||
1241 | XSETFRAME (frame, f); | |
2d764c78 | 1242 | status = 0; |
a61c12d5 | 1243 | color_desc = call2 (Qtty_color_desc, build_string (color_name), frame); |
363e4e42 | 1244 | if (CONSP (color_desc) && CONSP (XCDR (color_desc))) |
2d764c78 EZ |
1245 | { |
1246 | color_idx = XINT (XCAR (XCDR (color_desc))); | |
1247 | if (CONSP (XCDR (XCDR (color_desc)))) | |
1248 | { | |
1249 | red = XINT (XCAR (XCDR (XCDR (color_desc)))); | |
1250 | green = XINT (XCAR (XCDR (XCDR (XCDR (color_desc))))); | |
1251 | blue = XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc)))))); | |
1252 | } | |
1253 | status = 1; | |
1254 | } | |
a61c12d5 | 1255 | else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist")))) |
2d764c78 | 1256 | /* We were called early during startup, and the colors are not |
a61c12d5 | 1257 | yet set up in tty-defined-color-alist. Don't return a failure |
2d764c78 EZ |
1258 | indication, since this produces the annoying "Unable to |
1259 | load color" messages in the *Messages* buffer. */ | |
1260 | status = 1; | |
1261 | } | |
f9d2fdc4 EZ |
1262 | if (color_idx == FACE_TTY_DEFAULT_COLOR && *color_name) |
1263 | { | |
1264 | if (strcmp (color_name, "unspecified-fg") == 0) | |
1265 | color_idx = FACE_TTY_DEFAULT_FG_COLOR; | |
1266 | else if (strcmp (color_name, "unspecified-bg") == 0) | |
1267 | color_idx = FACE_TTY_DEFAULT_BG_COLOR; | |
1268 | } | |
1269 | ||
3b451f74 EZ |
1270 | if (color_idx != FACE_TTY_DEFAULT_COLOR) |
1271 | status = 1; | |
1272 | ||
3a28db80 | 1273 | color_def->pixel = color_idx; |
2d764c78 EZ |
1274 | color_def->red = red; |
1275 | color_def->green = green; | |
1276 | color_def->blue = blue; | |
1277 | ||
1278 | return status; | |
1279 | } | |
1280 | ||
08dc08dc GM |
1281 | |
1282 | /* Decide if color named COLOR_NAME is valid for the display | |
1283 | associated with the frame F; if so, return the rgb values in | |
1284 | COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. | |
2d764c78 EZ |
1285 | |
1286 | This does the right thing for any type of frame. */ | |
08dc08dc | 1287 | |
2d764c78 EZ |
1288 | int |
1289 | defined_color (f, color_name, color_def, alloc) | |
1290 | struct frame *f; | |
1291 | char *color_name; | |
1292 | XColor *color_def; | |
1293 | int alloc; | |
1294 | { | |
1295 | if (!FRAME_WINDOW_P (f)) | |
1296 | return tty_defined_color (f, color_name, color_def, alloc); | |
82641697 | 1297 | #ifdef HAVE_X_WINDOWS |
2d764c78 EZ |
1298 | else if (FRAME_X_P (f)) |
1299 | return x_defined_color (f, color_name, color_def, alloc); | |
1300 | #endif | |
1301 | #ifdef WINDOWSNT | |
1302 | else if (FRAME_W32_P (f)) | |
2d764c78 EZ |
1303 | return w32_defined_color (f, color_name, color_def, alloc); |
1304 | #endif | |
1305 | #ifdef macintosh | |
1306 | else if (FRAME_MAC_P (f)) | |
1307 | /* FIXME: mac_defined_color doesn't exist! */ | |
1308 | return mac_defined_color (f, color_name, color_def, alloc); | |
1309 | #endif | |
1310 | else | |
1311 | abort (); | |
1312 | } | |
1313 | ||
08dc08dc GM |
1314 | |
1315 | /* Given the index IDX of a tty color on frame F, return its name, a | |
1316 | Lisp string. */ | |
2d764c78 EZ |
1317 | |
1318 | Lisp_Object | |
1319 | tty_color_name (f, idx) | |
1320 | struct frame *f; | |
1321 | int idx; | |
1322 | { | |
2d764c78 EZ |
1323 | if (idx >= 0 && !NILP (Ffboundp (Qtty_color_by_index))) |
1324 | { | |
a61c12d5 EZ |
1325 | Lisp_Object frame; |
1326 | Lisp_Object coldesc; | |
1327 | ||
1328 | XSETFRAME (frame, f); | |
1329 | coldesc = call2 (Qtty_color_by_index, make_number (idx), frame); | |
2d764c78 EZ |
1330 | |
1331 | if (!NILP (coldesc)) | |
1332 | return XCAR (coldesc); | |
1333 | } | |
1334 | #ifdef MSDOS | |
1335 | /* We can have an MSDOG frame under -nw for a short window of | |
1336 | opportunity before internal_terminal_init is called. DTRT. */ | |
1337 | if (FRAME_MSDOS_P (f) && !inhibit_window_system) | |
1338 | return msdos_stdcolor_name (idx); | |
1339 | #endif | |
1340 | ||
ef917393 EZ |
1341 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
1342 | return build_string (unspecified_fg); | |
1343 | if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
1344 | return build_string (unspecified_bg); | |
c3cee013 JR |
1345 | |
1346 | #ifdef WINDOWSNT | |
1347 | return vga_stdcolor_name (idx); | |
1348 | #endif | |
1349 | ||
ef917393 | 1350 | return Qunspecified; |
2d764c78 | 1351 | } |
82641697 | 1352 | |
08dc08dc | 1353 | |
82641697 GM |
1354 | /* Return non-zero if COLOR_NAME is a shade of gray (or white or |
1355 | black) on frame F. The algorithm is taken from 20.2 faces.el. */ | |
1356 | ||
1357 | static int | |
1358 | face_color_gray_p (f, color_name) | |
1359 | struct frame *f; | |
1360 | char *color_name; | |
1361 | { | |
1362 | XColor color; | |
1363 | int gray_p; | |
1364 | ||
1365 | if (defined_color (f, color_name, &color, 0)) | |
1366 | gray_p = ((abs (color.red - color.green) | |
1367 | < max (color.red, color.green) / 20) | |
1368 | && (abs (color.green - color.blue) | |
1369 | < max (color.green, color.blue) / 20) | |
1370 | && (abs (color.blue - color.red) | |
1371 | < max (color.blue, color.red) / 20)); | |
87485d6f | 1372 | else |
82641697 | 1373 | gray_p = 0; |
178c5d9c | 1374 | |
82641697 | 1375 | return gray_p; |
87485d6f | 1376 | } |
87485d6f | 1377 | |
cb637678 | 1378 | |
82641697 GM |
1379 | /* Return non-zero if color COLOR_NAME can be displayed on frame F. |
1380 | BACKGROUND_P non-zero means the color will be used as background | |
1381 | color. */ | |
1382 | ||
1383 | static int | |
1384 | face_color_supported_p (f, color_name, background_p) | |
1385 | struct frame *f; | |
1386 | char *color_name; | |
1387 | int background_p; | |
1388 | { | |
1389 | Lisp_Object frame; | |
2d764c78 | 1390 | XColor not_used; |
82641697 GM |
1391 | |
1392 | XSETFRAME (frame, f); | |
8affcced KH |
1393 | return (FRAME_WINDOW_P (f) |
1394 | ? (!NILP (Fxw_display_color_p (frame)) | |
1395 | || xstricmp (color_name, "black") == 0 | |
1396 | || xstricmp (color_name, "white") == 0 | |
1397 | || (background_p | |
1398 | && face_color_gray_p (f, color_name)) | |
1399 | || (!NILP (Fx_display_grayscale_p (frame)) | |
1400 | && face_color_gray_p (f, color_name))) | |
1401 | : tty_defined_color (f, color_name, ¬_used, 0)); | |
2d764c78 | 1402 | } |
82641697 GM |
1403 | |
1404 | ||
da47150d | 1405 | DEFUN ("color-gray-p", Fcolor_gray_p, Scolor_gray_p, 1, 2, 0, |
82641697 GM |
1406 | "Return non-nil if COLOR is a shade of gray (or white or black).\n\ |
1407 | FRAME specifies the frame and thus the display for interpreting COLOR.\n\ | |
1408 | If FRAME is nil or omitted, use the selected frame.") | |
1409 | (color, frame) | |
1410 | Lisp_Object color, frame; | |
cb637678 | 1411 | { |
2d764c78 EZ |
1412 | struct frame *f; |
1413 | ||
1414 | CHECK_FRAME (frame, 0); | |
82641697 | 1415 | CHECK_STRING (color, 0); |
2d764c78 | 1416 | f = XFRAME (frame); |
82641697 GM |
1417 | return face_color_gray_p (f, XSTRING (color)->data) ? Qt : Qnil; |
1418 | } | |
660ed669 | 1419 | |
fffc2367 | 1420 | |
da47150d EZ |
1421 | DEFUN ("color-supported-p", Fcolor_supported_p, |
1422 | Scolor_supported_p, 2, 3, 0, | |
82641697 GM |
1423 | "Return non-nil if COLOR can be displayed on FRAME.\n\ |
1424 | BACKGROUND-P non-nil means COLOR is used as a background.\n\ | |
1425 | If FRAME is nil or omitted, use the selected frame.\n\ | |
1426 | COLOR must be a valid color name.") | |
da47150d | 1427 | (color, frame, background_p) |
82641697 GM |
1428 | Lisp_Object frame, color, background_p; |
1429 | { | |
2d764c78 EZ |
1430 | struct frame *f; |
1431 | ||
1432 | CHECK_FRAME (frame, 0); | |
82641697 | 1433 | CHECK_STRING (color, 0); |
2d764c78 | 1434 | f = XFRAME (frame); |
82641697 GM |
1435 | if (face_color_supported_p (f, XSTRING (color)->data, !NILP (background_p))) |
1436 | return Qt; | |
1437 | return Qnil; | |
1438 | } | |
7b37f67b | 1439 | |
08dc08dc | 1440 | |
82641697 GM |
1441 | /* Load color with name NAME for use by face FACE on frame F. |
1442 | TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX, | |
1443 | LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX, | |
1444 | LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the | |
1445 | pixel color. If color cannot be loaded, display a message, and | |
1446 | return the foreground, background or underline color of F, but | |
1447 | record that fact in flags of the face so that we don't try to free | |
1448 | these colors. */ | |
1449 | ||
44747bd0 | 1450 | unsigned long |
82641697 GM |
1451 | load_color (f, face, name, target_index) |
1452 | struct frame *f; | |
1453 | struct face *face; | |
1454 | Lisp_Object name; | |
1455 | enum lface_attribute_index target_index; | |
1456 | { | |
1457 | XColor color; | |
178c5d9c | 1458 | |
82641697 GM |
1459 | xassert (STRINGP (name)); |
1460 | xassert (target_index == LFACE_FOREGROUND_INDEX | |
1461 | || target_index == LFACE_BACKGROUND_INDEX | |
1462 | || target_index == LFACE_UNDERLINE_INDEX | |
1463 | || target_index == LFACE_OVERLINE_INDEX | |
1464 | || target_index == LFACE_STRIKE_THROUGH_INDEX | |
1465 | || target_index == LFACE_BOX_INDEX); | |
178c5d9c | 1466 | |
82641697 GM |
1467 | /* if the color map is full, defined_color will return a best match |
1468 | to the values in an existing cell. */ | |
1469 | if (!defined_color (f, XSTRING (name)->data, &color, 1)) | |
1470 | { | |
2d764c78 | 1471 | add_to_log ("Unable to load color \"%s\"", name, Qnil); |
178c5d9c | 1472 | |
82641697 | 1473 | switch (target_index) |
1120eb5e | 1474 | { |
82641697 GM |
1475 | case LFACE_FOREGROUND_INDEX: |
1476 | face->foreground_defaulted_p = 1; | |
1477 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1478 | break; | |
178c5d9c | 1479 | |
82641697 GM |
1480 | case LFACE_BACKGROUND_INDEX: |
1481 | face->background_defaulted_p = 1; | |
1482 | color.pixel = FRAME_BACKGROUND_PIXEL (f); | |
1483 | break; | |
178c5d9c | 1484 | |
82641697 GM |
1485 | case LFACE_UNDERLINE_INDEX: |
1486 | face->underline_defaulted_p = 1; | |
1487 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1488 | break; | |
178c5d9c | 1489 | |
82641697 GM |
1490 | case LFACE_OVERLINE_INDEX: |
1491 | face->overline_color_defaulted_p = 1; | |
1492 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1120eb5e | 1493 | break; |
178c5d9c | 1494 | |
82641697 GM |
1495 | case LFACE_STRIKE_THROUGH_INDEX: |
1496 | face->strike_through_color_defaulted_p = 1; | |
1497 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1498 | break; | |
178c5d9c | 1499 | |
82641697 GM |
1500 | case LFACE_BOX_INDEX: |
1501 | face->box_color_defaulted_p = 1; | |
1502 | color.pixel = FRAME_FOREGROUND_PIXEL (f); | |
1503 | break; | |
1504 | ||
1505 | default: | |
1506 | abort (); | |
1120eb5e | 1507 | } |
82641697 GM |
1508 | } |
1509 | #if GLYPH_DEBUG | |
1510 | else | |
1511 | ++ncolors_allocated; | |
1512 | #endif | |
178c5d9c | 1513 | |
82641697 GM |
1514 | return color.pixel; |
1515 | } | |
1120eb5e | 1516 | |
08dc08dc | 1517 | |
c3cee013 | 1518 | #ifdef HAVE_WINDOW_SYSTEM |
1120eb5e | 1519 | |
82641697 GM |
1520 | /* Load colors for face FACE which is used on frame F. Colors are |
1521 | specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX | |
1522 | of ATTRS. If the background color specified is not supported on F, | |
1523 | try to emulate gray colors with a stipple from Vface_default_stipple. */ | |
1524 | ||
1525 | static void | |
1526 | load_face_colors (f, face, attrs) | |
1527 | struct frame *f; | |
1528 | struct face *face; | |
1529 | Lisp_Object *attrs; | |
1530 | { | |
1531 | Lisp_Object fg, bg; | |
1532 | ||
1533 | bg = attrs[LFACE_BACKGROUND_INDEX]; | |
1534 | fg = attrs[LFACE_FOREGROUND_INDEX]; | |
1535 | ||
1536 | /* Swap colors if face is inverse-video. */ | |
1537 | if (EQ (attrs[LFACE_INVERSE_INDEX], Qt)) | |
1538 | { | |
1539 | Lisp_Object tmp; | |
1540 | tmp = fg; | |
1541 | fg = bg; | |
1542 | bg = tmp; | |
1543 | } | |
1544 | ||
1545 | /* Check for support for foreground, not for background because | |
1546 | face_color_supported_p is smart enough to know that grays are | |
1547 | "supported" as background because we are supposed to use stipple | |
1548 | for them. */ | |
1549 | if (!face_color_supported_p (f, XSTRING (bg)->data, 0) | |
fef04523 | 1550 | && !NILP (Fbitmap_spec_p (Vface_default_stipple))) |
82641697 GM |
1551 | { |
1552 | x_destroy_bitmap (f, face->stipple); | |
1553 | face->stipple = load_pixmap (f, Vface_default_stipple, | |
1554 | &face->pixmap_w, &face->pixmap_h); | |
1555 | } | |
82641697 | 1556 | |
be8a72f4 | 1557 | face->background = load_color (f, face, bg, LFACE_BACKGROUND_INDEX); |
82641697 | 1558 | face->foreground = load_color (f, face, fg, LFACE_FOREGROUND_INDEX); |
cb637678 JB |
1559 | } |
1560 | ||
660ed669 | 1561 | |
82641697 | 1562 | /* Free color PIXEL on frame F. */ |
cd0bb842 | 1563 | |
cb637678 | 1564 | void |
82641697 | 1565 | unload_color (f, pixel) |
cb637678 | 1566 | struct frame *f; |
82641697 | 1567 | unsigned long pixel; |
cb637678 | 1568 | { |
c3cee013 | 1569 | #ifdef HAVE_X_WINDOWS |
660ed669 | 1570 | BLOCK_INPUT; |
1f847cf8 | 1571 | x_free_colors (f, &pixel, 1); |
82641697 | 1572 | UNBLOCK_INPUT; |
c3cee013 | 1573 | #endif |
82641697 GM |
1574 | } |
1575 | ||
1576 | ||
1577 | /* Free colors allocated for FACE. */ | |
1578 | ||
1579 | static void | |
1580 | free_face_colors (f, face) | |
1581 | struct frame *f; | |
1582 | struct face *face; | |
1583 | { | |
c3cee013 | 1584 | #ifdef HAVE_X_WINDOWS |
08dc08dc | 1585 | BLOCK_INPUT; |
178c5d9c | 1586 | |
08dc08dc GM |
1587 | if (!face->foreground_defaulted_p) |
1588 | { | |
1589 | x_free_colors (f, &face->foreground, 1); | |
1590 | IF_DEBUG (--ncolors_allocated); | |
1591 | } | |
178c5d9c | 1592 | |
08dc08dc GM |
1593 | if (!face->background_defaulted_p) |
1594 | { | |
1595 | x_free_colors (f, &face->background, 1); | |
1596 | IF_DEBUG (--ncolors_allocated); | |
1597 | } | |
82641697 | 1598 | |
08dc08dc GM |
1599 | if (face->underline_p |
1600 | && !face->underline_defaulted_p) | |
1601 | { | |
1602 | x_free_colors (f, &face->underline_color, 1); | |
1603 | IF_DEBUG (--ncolors_allocated); | |
1604 | } | |
82641697 | 1605 | |
08dc08dc GM |
1606 | if (face->overline_p |
1607 | && !face->overline_color_defaulted_p) | |
1608 | { | |
1609 | x_free_colors (f, &face->overline_color, 1); | |
1610 | IF_DEBUG (--ncolors_allocated); | |
1611 | } | |
82641697 | 1612 | |
08dc08dc GM |
1613 | if (face->strike_through_p |
1614 | && !face->strike_through_color_defaulted_p) | |
1615 | { | |
1616 | x_free_colors (f, &face->strike_through_color, 1); | |
1617 | IF_DEBUG (--ncolors_allocated); | |
1618 | } | |
82641697 | 1619 | |
08dc08dc GM |
1620 | if (face->box != FACE_NO_BOX |
1621 | && !face->box_color_defaulted_p) | |
1622 | { | |
1623 | x_free_colors (f, &face->box_color, 1); | |
1624 | IF_DEBUG (--ncolors_allocated); | |
82641697 | 1625 | } |
08dc08dc GM |
1626 | |
1627 | UNBLOCK_INPUT; | |
2d764c78 | 1628 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 | 1629 | } |
08dc08dc | 1630 | |
c3cee013 | 1631 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
1632 | |
1633 | ||
1634 | \f | |
1635 | /*********************************************************************** | |
1636 | XLFD Font Names | |
1637 | ***********************************************************************/ | |
1638 | ||
1639 | /* An enumerator for each field of an XLFD font name. */ | |
1640 | ||
1641 | enum xlfd_field | |
1642 | { | |
1643 | XLFD_FOUNDRY, | |
1644 | XLFD_FAMILY, | |
1645 | XLFD_WEIGHT, | |
1646 | XLFD_SLANT, | |
1647 | XLFD_SWIDTH, | |
1648 | XLFD_ADSTYLE, | |
1649 | XLFD_PIXEL_SIZE, | |
1650 | XLFD_POINT_SIZE, | |
1651 | XLFD_RESX, | |
1652 | XLFD_RESY, | |
1653 | XLFD_SPACING, | |
1654 | XLFD_AVGWIDTH, | |
1655 | XLFD_REGISTRY, | |
1656 | XLFD_ENCODING, | |
1657 | XLFD_LAST | |
1658 | }; | |
1659 | ||
178c5d9c | 1660 | /* An enumerator for each possible slant value of a font. Taken from |
82641697 GM |
1661 | the XLFD specification. */ |
1662 | ||
1663 | enum xlfd_slant | |
1664 | { | |
1665 | XLFD_SLANT_UNKNOWN, | |
1666 | XLFD_SLANT_ROMAN, | |
1667 | XLFD_SLANT_ITALIC, | |
1668 | XLFD_SLANT_OBLIQUE, | |
1669 | XLFD_SLANT_REVERSE_ITALIC, | |
1670 | XLFD_SLANT_REVERSE_OBLIQUE, | |
1671 | XLFD_SLANT_OTHER | |
1672 | }; | |
1673 | ||
1674 | /* Relative font weight according to XLFD documentation. */ | |
1675 | ||
1676 | enum xlfd_weight | |
1677 | { | |
1678 | XLFD_WEIGHT_UNKNOWN, | |
1679 | XLFD_WEIGHT_ULTRA_LIGHT, /* 10 */ | |
1680 | XLFD_WEIGHT_EXTRA_LIGHT, /* 20 */ | |
1681 | XLFD_WEIGHT_LIGHT, /* 30 */ | |
1682 | XLFD_WEIGHT_SEMI_LIGHT, /* 40: SemiLight, Book, ... */ | |
1683 | XLFD_WEIGHT_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1684 | XLFD_WEIGHT_SEMI_BOLD, /* 60: SemiBold, DemiBold, ... */ | |
1685 | XLFD_WEIGHT_BOLD, /* 70: Bold, ... */ | |
1686 | XLFD_WEIGHT_EXTRA_BOLD, /* 80: ExtraBold, Heavy, ... */ | |
1687 | XLFD_WEIGHT_ULTRA_BOLD /* 90: UltraBold, Black, ... */ | |
1688 | }; | |
1689 | ||
1690 | /* Relative proportionate width. */ | |
1691 | ||
1692 | enum xlfd_swidth | |
1693 | { | |
1694 | XLFD_SWIDTH_UNKNOWN, | |
1695 | XLFD_SWIDTH_ULTRA_CONDENSED, /* 10 */ | |
1696 | XLFD_SWIDTH_EXTRA_CONDENSED, /* 20 */ | |
1697 | XLFD_SWIDTH_CONDENSED, /* 30: Condensed, Narrow, Compressed, ... */ | |
1698 | XLFD_SWIDTH_SEMI_CONDENSED, /* 40: semicondensed */ | |
1699 | XLFD_SWIDTH_MEDIUM, /* 50: Medium, Normal, Regular, ... */ | |
1700 | XLFD_SWIDTH_SEMI_EXPANDED, /* 60: SemiExpanded, DemiExpanded, ... */ | |
1701 | XLFD_SWIDTH_EXPANDED, /* 70: Expanded... */ | |
1702 | XLFD_SWIDTH_EXTRA_EXPANDED, /* 80: ExtraExpanded, Wide... */ | |
1703 | XLFD_SWIDTH_ULTRA_EXPANDED /* 90: UltraExpanded... */ | |
1704 | }; | |
1705 | ||
1706 | /* Structure used for tables mapping XLFD weight, slant, and width | |
1707 | names to numeric and symbolic values. */ | |
1708 | ||
1709 | struct table_entry | |
1710 | { | |
1711 | char *name; | |
1712 | int numeric; | |
1713 | Lisp_Object *symbol; | |
1714 | }; | |
1715 | ||
1716 | /* Table of XLFD slant names and their numeric and symbolic | |
1717 | representations. This table must be sorted by slant names in | |
1718 | ascending order. */ | |
1719 | ||
1720 | static struct table_entry slant_table[] = | |
1721 | { | |
1722 | {"i", XLFD_SLANT_ITALIC, &Qitalic}, | |
1723 | {"o", XLFD_SLANT_OBLIQUE, &Qoblique}, | |
1724 | {"ot", XLFD_SLANT_OTHER, &Qitalic}, | |
1725 | {"r", XLFD_SLANT_ROMAN, &Qnormal}, | |
1726 | {"ri", XLFD_SLANT_REVERSE_ITALIC, &Qreverse_italic}, | |
1727 | {"ro", XLFD_SLANT_REVERSE_OBLIQUE, &Qreverse_oblique} | |
1728 | }; | |
1729 | ||
1730 | /* Table of XLFD weight names. This table must be sorted by weight | |
1731 | names in ascending order. */ | |
1732 | ||
1733 | static struct table_entry weight_table[] = | |
1734 | { | |
1735 | {"black", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold}, | |
1736 | {"bold", XLFD_WEIGHT_BOLD, &Qbold}, | |
1737 | {"book", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1738 | {"demibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1739 | {"extralight", XLFD_WEIGHT_EXTRA_LIGHT, &Qextra_light}, | |
1740 | {"extrabold", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1741 | {"heavy", XLFD_WEIGHT_EXTRA_BOLD, &Qextra_bold}, | |
1742 | {"light", XLFD_WEIGHT_LIGHT, &Qlight}, | |
1743 | {"medium", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1744 | {"normal", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1745 | {"regular", XLFD_WEIGHT_MEDIUM, &Qnormal}, | |
1746 | {"semibold", XLFD_WEIGHT_SEMI_BOLD, &Qsemi_bold}, | |
1747 | {"semilight", XLFD_WEIGHT_SEMI_LIGHT, &Qsemi_light}, | |
1748 | {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT, &Qultra_light}, | |
1749 | {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD, &Qultra_bold} | |
1750 | }; | |
1751 | ||
1752 | /* Table of XLFD width names. This table must be sorted by width | |
1753 | names in ascending order. */ | |
1754 | ||
1755 | static struct table_entry swidth_table[] = | |
1756 | { | |
1757 | {"compressed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1758 | {"condensed", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1759 | {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1760 | {"expanded", XLFD_SWIDTH_EXPANDED, &Qexpanded}, | |
1761 | {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED, &Qextra_condensed}, | |
1762 | {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded}, | |
1763 | {"medium", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1764 | {"narrow", XLFD_SWIDTH_CONDENSED, &Qcondensed}, | |
1765 | {"normal", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1766 | {"regular", XLFD_SWIDTH_MEDIUM, &Qnormal}, | |
1767 | {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED, &Qsemi_condensed}, | |
1768 | {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED, &Qsemi_expanded}, | |
1769 | {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED, &Qultra_condensed}, | |
1770 | {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED, &Qultra_expanded}, | |
1771 | {"wide", XLFD_SWIDTH_EXTRA_EXPANDED, &Qextra_expanded} | |
1772 | }; | |
1773 | ||
1774 | /* Structure used to hold the result of splitting font names in XLFD | |
1775 | format into their fields. */ | |
1776 | ||
1777 | struct font_name | |
1778 | { | |
1779 | /* The original name which is modified destructively by | |
1780 | split_font_name. The pointer is kept here to be able to free it | |
1781 | if it was allocated from the heap. */ | |
1782 | char *name; | |
1783 | ||
1784 | /* Font name fields. Each vector element points into `name' above. | |
1785 | Fields are NUL-terminated. */ | |
1786 | char *fields[XLFD_LAST]; | |
1787 | ||
1788 | /* Numeric values for those fields that interest us. See | |
1789 | split_font_name for which these are. */ | |
1790 | int numeric[XLFD_LAST]; | |
1791 | }; | |
1792 | ||
1793 | /* The frame in effect when sorting font names. Set temporarily in | |
1794 | sort_fonts so that it is available in font comparison functions. */ | |
1795 | ||
1796 | static struct frame *font_frame; | |
1797 | ||
1798 | /* Order by which font selection chooses fonts. The default values | |
1799 | mean `first, find a best match for the font width, then for the | |
1800 | font height, then for weight, then for slant.' This variable can be | |
1801 | set via set-face-font-sort-order. */ | |
1802 | ||
1803 | static int font_sort_order[4]; | |
1804 | ||
1805 | ||
1806 | /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries. | |
1807 | TABLE must be sorted by TABLE[i]->name in ascending order. Value | |
1808 | is a pointer to the matching table entry or null if no table entry | |
1809 | matches. */ | |
1810 | ||
1811 | static struct table_entry * | |
1812 | xlfd_lookup_field_contents (table, dim, font, field_index) | |
1813 | struct table_entry *table; | |
1814 | int dim; | |
1815 | struct font_name *font; | |
1816 | int field_index; | |
1817 | { | |
1818 | /* Function split_font_name converts fields to lower-case, so there | |
1819 | is no need to use xstrlwr or xstricmp here. */ | |
1820 | char *s = font->fields[field_index]; | |
1821 | int low, mid, high, cmp; | |
1822 | ||
1823 | low = 0; | |
1824 | high = dim - 1; | |
1825 | ||
1826 | while (low <= high) | |
1827 | { | |
1828 | mid = (low + high) / 2; | |
1829 | cmp = strcmp (table[mid].name, s); | |
178c5d9c | 1830 | |
82641697 GM |
1831 | if (cmp < 0) |
1832 | low = mid + 1; | |
1833 | else if (cmp > 0) | |
1834 | high = mid - 1; | |
1835 | else | |
1836 | return table + mid; | |
1837 | } | |
1838 | ||
1839 | return NULL; | |
1840 | } | |
1841 | ||
1842 | ||
1843 | /* Return a numeric representation for font name field | |
1844 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1845 | has DIM entries. Value is the numeric value found or DFLT if no | |
1846 | table entry matches. This function is used to translate weight, | |
1847 | slant, and swidth names of XLFD font names to numeric values. */ | |
1848 | ||
1849 | static INLINE int | |
1850 | xlfd_numeric_value (table, dim, font, field_index, dflt) | |
1851 | struct table_entry *table; | |
1852 | int dim; | |
1853 | struct font_name *font; | |
1854 | int field_index; | |
1855 | int dflt; | |
1856 | { | |
1857 | struct table_entry *p; | |
1858 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1859 | return p ? p->numeric : dflt; | |
1860 | } | |
1861 | ||
1862 | ||
1863 | /* Return a symbolic representation for font name field | |
1864 | FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which | |
1865 | has DIM entries. Value is the symbolic value found or DFLT if no | |
1866 | table entry matches. This function is used to translate weight, | |
1867 | slant, and swidth names of XLFD font names to symbols. */ | |
1868 | ||
1869 | static INLINE Lisp_Object | |
1870 | xlfd_symbolic_value (table, dim, font, field_index, dflt) | |
1871 | struct table_entry *table; | |
1872 | int dim; | |
1873 | struct font_name *font; | |
1874 | int field_index; | |
6fc556fd | 1875 | Lisp_Object dflt; |
82641697 GM |
1876 | { |
1877 | struct table_entry *p; | |
1878 | p = xlfd_lookup_field_contents (table, dim, font, field_index); | |
1879 | return p ? *p->symbol : dflt; | |
1880 | } | |
1881 | ||
1882 | ||
1883 | /* Return a numeric value for the slant of the font given by FONT. */ | |
1884 | ||
1885 | static INLINE int | |
1886 | xlfd_numeric_slant (font) | |
1887 | struct font_name *font; | |
1888 | { | |
1889 | return xlfd_numeric_value (slant_table, DIM (slant_table), | |
1890 | font, XLFD_SLANT, XLFD_SLANT_ROMAN); | |
1891 | } | |
1892 | ||
1893 | ||
1894 | /* Return a symbol representing the weight of the font given by FONT. */ | |
1895 | ||
1896 | static INLINE Lisp_Object | |
1897 | xlfd_symbolic_slant (font) | |
1898 | struct font_name *font; | |
1899 | { | |
1900 | return xlfd_symbolic_value (slant_table, DIM (slant_table), | |
1901 | font, XLFD_SLANT, Qnormal); | |
1902 | } | |
1903 | ||
1904 | ||
1905 | /* Return a numeric value for the weight of the font given by FONT. */ | |
1906 | ||
1907 | static INLINE int | |
1908 | xlfd_numeric_weight (font) | |
1909 | struct font_name *font; | |
1910 | { | |
1911 | return xlfd_numeric_value (weight_table, DIM (weight_table), | |
1912 | font, XLFD_WEIGHT, XLFD_WEIGHT_MEDIUM); | |
1913 | } | |
1914 | ||
1915 | ||
1916 | /* Return a symbol representing the slant of the font given by FONT. */ | |
1917 | ||
1918 | static INLINE Lisp_Object | |
1919 | xlfd_symbolic_weight (font) | |
1920 | struct font_name *font; | |
1921 | { | |
1922 | return xlfd_symbolic_value (weight_table, DIM (weight_table), | |
1923 | font, XLFD_WEIGHT, Qnormal); | |
1924 | } | |
1925 | ||
1926 | ||
1927 | /* Return a numeric value for the swidth of the font whose XLFD font | |
1928 | name fields are found in FONT. */ | |
1929 | ||
1930 | static INLINE int | |
1931 | xlfd_numeric_swidth (font) | |
1932 | struct font_name *font; | |
1933 | { | |
1934 | return xlfd_numeric_value (swidth_table, DIM (swidth_table), | |
1935 | font, XLFD_SWIDTH, XLFD_SWIDTH_MEDIUM); | |
1936 | } | |
1937 | ||
1938 | ||
1939 | /* Return a symbolic value for the swidth of FONT. */ | |
1940 | ||
1941 | static INLINE Lisp_Object | |
1942 | xlfd_symbolic_swidth (font) | |
1943 | struct font_name *font; | |
1944 | { | |
1945 | return xlfd_symbolic_value (swidth_table, DIM (swidth_table), | |
1946 | font, XLFD_SWIDTH, Qnormal); | |
1947 | } | |
178c5d9c | 1948 | |
82641697 GM |
1949 | |
1950 | /* Look up the entry of SYMBOL in the vector TABLE which has DIM | |
1951 | entries. Value is a pointer to the matching table entry or null if | |
1952 | no element of TABLE contains SYMBOL. */ | |
1953 | ||
1954 | static struct table_entry * | |
1955 | face_value (table, dim, symbol) | |
1956 | struct table_entry *table; | |
1957 | int dim; | |
1958 | Lisp_Object symbol; | |
1959 | { | |
1960 | int i; | |
1961 | ||
1962 | xassert (SYMBOLP (symbol)); | |
178c5d9c | 1963 | |
82641697 GM |
1964 | for (i = 0; i < dim; ++i) |
1965 | if (EQ (*table[i].symbol, symbol)) | |
1966 | break; | |
1967 | ||
1968 | return i < dim ? table + i : NULL; | |
1969 | } | |
1970 | ||
1971 | ||
1972 | /* Return a numeric value for SYMBOL in the vector TABLE which has DIM | |
1973 | entries. Value is -1 if SYMBOL is not found in TABLE. */ | |
1974 | ||
1975 | static INLINE int | |
1976 | face_numeric_value (table, dim, symbol) | |
1977 | struct table_entry *table; | |
1978 | int dim; | |
1979 | Lisp_Object symbol; | |
1980 | { | |
1981 | struct table_entry *p = face_value (table, dim, symbol); | |
1982 | return p ? p->numeric : -1; | |
1983 | } | |
1984 | ||
1985 | ||
1986 | /* Return a numeric value representing the weight specified by Lisp | |
1987 | symbol WEIGHT. Value is one of the enumerators of enum | |
1988 | xlfd_weight. */ | |
1989 | ||
1990 | static INLINE int | |
1991 | face_numeric_weight (weight) | |
1992 | Lisp_Object weight; | |
1993 | { | |
1994 | return face_numeric_value (weight_table, DIM (weight_table), weight); | |
1995 | } | |
1996 | ||
1997 | ||
1998 | /* Return a numeric value representing the slant specified by Lisp | |
1999 | symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */ | |
2000 | ||
2001 | static INLINE int | |
2002 | face_numeric_slant (slant) | |
2003 | Lisp_Object slant; | |
2004 | { | |
2005 | return face_numeric_value (slant_table, DIM (slant_table), slant); | |
2006 | } | |
2007 | ||
2008 | ||
2009 | /* Return a numeric value representing the swidth specified by Lisp | |
2010 | symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */ | |
2011 | ||
2012 | static int | |
2013 | face_numeric_swidth (width) | |
2014 | Lisp_Object width; | |
2015 | { | |
2016 | return face_numeric_value (swidth_table, DIM (swidth_table), width); | |
2017 | } | |
2018 | ||
2019 | ||
c3cee013 | 2020 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
2021 | |
2022 | /* Return non-zero if FONT is the name of a fixed-pitch font. */ | |
2023 | ||
2024 | static INLINE int | |
2025 | xlfd_fixed_p (font) | |
2026 | struct font_name *font; | |
2027 | { | |
2028 | /* Function split_font_name converts fields to lower-case, so there | |
2029 | is no need to use tolower here. */ | |
2030 | return *font->fields[XLFD_SPACING] != 'p'; | |
2031 | } | |
2032 | ||
2033 | ||
2034 | /* Return the point size of FONT on frame F, measured in 1/10 pt. | |
2035 | ||
2036 | The actual height of the font when displayed on F depends on the | |
2037 | resolution of both the font and frame. For example, a 10pt font | |
2038 | designed for a 100dpi display will display larger than 10pt on a | |
2039 | 75dpi display. (It's not unusual to use fonts not designed for the | |
2040 | display one is using. For example, some intlfonts are available in | |
2041 | 72dpi versions, only.) | |
2042 | ||
2043 | Value is the real point size of FONT on frame F, or 0 if it cannot | |
2044 | be determined. */ | |
2045 | ||
2046 | static INLINE int | |
2047 | xlfd_point_size (f, font) | |
2048 | struct frame *f; | |
2049 | struct font_name *font; | |
2050 | { | |
2051 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2052 | double font_resy = atoi (font->fields[XLFD_RESY]); | |
2053 | double font_pt = atoi (font->fields[XLFD_POINT_SIZE]); | |
2054 | int real_pt; | |
2055 | ||
2056 | if (font_resy == 0 || font_pt == 0) | |
2057 | real_pt = 0; | |
2058 | else | |
2059 | real_pt = (font_resy / resy) * font_pt + 0.5; | |
2060 | ||
2061 | return real_pt; | |
2062 | } | |
2063 | ||
2064 | ||
39506348 KH |
2065 | /* Return point size of PIXEL dots while considering Y-resultion (DPI) |
2066 | of frame F. This function is used to guess a point size of font | |
2067 | when only the pixel height of the font is available. */ | |
2068 | ||
2069 | static INLINE int | |
2070 | pixel_point_size (f, pixel) | |
2071 | struct frame *f; | |
2072 | int pixel; | |
2073 | { | |
2074 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
2075 | double real_pt; | |
2076 | int int_pt; | |
2077 | ||
2078 | /* As one inch is 72 points, 72/RESY gives the point size of one dot. */ | |
2079 | real_pt = pixel * 72 / resy; | |
2080 | int_pt = real_pt + 0.5; | |
2081 | ||
2082 | return int_pt; | |
2083 | } | |
2084 | ||
2085 | ||
82641697 GM |
2086 | /* Split XLFD font name FONT->name destructively into NUL-terminated, |
2087 | lower-case fields in FONT->fields. NUMERIC_P non-zero means | |
2088 | compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH, | |
2089 | XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is | |
2090 | zero if the font name doesn't have the format we expect. The | |
2091 | expected format is a font name that starts with a `-' and has | |
2092 | XLFD_LAST fields separated by `-'. (The XLFD specification allows | |
2093 | forms of font names where certain field contents are enclosed in | |
2094 | square brackets. We don't support that, for now. */ | |
2095 | ||
2096 | static int | |
2097 | split_font_name (f, font, numeric_p) | |
2098 | struct frame *f; | |
2099 | struct font_name *font; | |
2100 | int numeric_p; | |
2101 | { | |
2102 | int i = 0; | |
2103 | int success_p; | |
2104 | ||
2105 | if (*font->name == '-') | |
2106 | { | |
2107 | char *p = xstrlwr (font->name) + 1; | |
2108 | ||
2109 | while (i < XLFD_LAST) | |
2110 | { | |
2111 | font->fields[i] = p; | |
2112 | ++i; | |
178c5d9c | 2113 | |
82641697 GM |
2114 | while (*p && *p != '-') |
2115 | ++p; | |
178c5d9c | 2116 | |
82641697 GM |
2117 | if (*p != '-') |
2118 | break; | |
178c5d9c | 2119 | |
82641697 GM |
2120 | *p++ = 0; |
2121 | } | |
2122 | } | |
2123 | ||
2124 | success_p = i == XLFD_LAST; | |
2125 | ||
2126 | /* If requested, and font name was in the expected format, | |
2127 | compute numeric values for some fields. */ | |
2128 | if (numeric_p && success_p) | |
2129 | { | |
2130 | font->numeric[XLFD_POINT_SIZE] = xlfd_point_size (f, font); | |
2131 | font->numeric[XLFD_RESY] = atoi (font->fields[XLFD_RESY]); | |
2132 | font->numeric[XLFD_SLANT] = xlfd_numeric_slant (font); | |
2133 | font->numeric[XLFD_WEIGHT] = xlfd_numeric_weight (font); | |
2134 | font->numeric[XLFD_SWIDTH] = xlfd_numeric_swidth (font); | |
2135 | } | |
2136 | ||
2137 | return success_p; | |
2138 | } | |
2139 | ||
2140 | ||
2141 | /* Build an XLFD font name from font name fields in FONT. Value is a | |
2142 | pointer to the font name, which is allocated via xmalloc. */ | |
178c5d9c | 2143 | |
82641697 GM |
2144 | static char * |
2145 | build_font_name (font) | |
2146 | struct font_name *font; | |
2147 | { | |
2148 | int i; | |
2149 | int size = 100; | |
2150 | char *font_name = (char *) xmalloc (size); | |
2151 | int total_length = 0; | |
2152 | ||
2153 | for (i = 0; i < XLFD_LAST; ++i) | |
2154 | { | |
2155 | /* Add 1 because of the leading `-'. */ | |
2156 | int len = strlen (font->fields[i]) + 1; | |
2157 | ||
2158 | /* Reallocate font_name if necessary. Add 1 for the final | |
2159 | NUL-byte. */ | |
2160 | if (total_length + len + 1 >= size) | |
2161 | { | |
2162 | int new_size = max (2 * size, size + len + 1); | |
2163 | int sz = new_size * sizeof *font_name; | |
2164 | font_name = (char *) xrealloc (font_name, sz); | |
2165 | size = new_size; | |
2166 | } | |
2167 | ||
2168 | font_name[total_length] = '-'; | |
2169 | bcopy (font->fields[i], font_name + total_length + 1, len - 1); | |
2170 | total_length += len; | |
2171 | } | |
2172 | ||
2173 | font_name[total_length] = 0; | |
2174 | return font_name; | |
2175 | } | |
2176 | ||
2177 | ||
2178 | /* Free an array FONTS of N font_name structures. This frees FONTS | |
2179 | itself and all `name' fields in its elements. */ | |
2180 | ||
2181 | static INLINE void | |
2182 | free_font_names (fonts, n) | |
2183 | struct font_name *fonts; | |
2184 | int n; | |
2185 | { | |
2186 | while (n) | |
2187 | xfree (fonts[--n].name); | |
2188 | xfree (fonts); | |
2189 | } | |
2190 | ||
2191 | ||
2192 | /* Sort vector FONTS of font_name structures which contains NFONTS | |
2193 | elements using qsort and comparison function CMPFN. F is the frame | |
2194 | on which the fonts will be used. The global variable font_frame | |
2195 | is temporarily set to F to make it available in CMPFN. */ | |
2196 | ||
2197 | static INLINE void | |
2198 | sort_fonts (f, fonts, nfonts, cmpfn) | |
2199 | struct frame *f; | |
2200 | struct font_name *fonts; | |
2201 | int nfonts; | |
2202 | int (*cmpfn) P_ ((const void *, const void *)); | |
2203 | { | |
2204 | font_frame = f; | |
2205 | qsort (fonts, nfonts, sizeof *fonts, cmpfn); | |
2206 | font_frame = NULL; | |
2207 | } | |
2208 | ||
2209 | ||
2210 | /* Get fonts matching PATTERN on frame F. If F is null, use the first | |
2211 | display in x_display_list. FONTS is a pointer to a vector of | |
2212 | NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try | |
2213 | alternative patterns from Valternate_fontname_alist if no fonts are | |
2214 | found matching PATTERN. SCALABLE_FONTS_P non-zero means include | |
2215 | scalable fonts. | |
2216 | ||
2217 | For all fonts found, set FONTS[i].name to the name of the font, | |
2218 | allocated via xmalloc, and split font names into fields. Ignore | |
2219 | fonts that we can't parse. Value is the number of fonts found. | |
178c5d9c | 2220 | |
82641697 GM |
2221 | This is similar to x_list_fonts. The differences are: |
2222 | ||
2223 | 1. It avoids consing. | |
2224 | 2. It never calls XLoadQueryFont. */ | |
2225 | ||
2226 | static int | |
2227 | x_face_list_fonts (f, pattern, fonts, nfonts, try_alternatives_p, | |
2228 | scalable_fonts_p) | |
2229 | struct frame *f; | |
2230 | char *pattern; | |
2231 | struct font_name *fonts; | |
2232 | int nfonts, try_alternatives_p; | |
2233 | int scalable_fonts_p; | |
2234 | { | |
82641697 GM |
2235 | int n, i, j; |
2236 | char **names; | |
c3cee013 JR |
2237 | #ifdef HAVE_X_WINDOWS |
2238 | Display *dpy = f ? FRAME_X_DISPLAY (f) : x_display_list->display; | |
82641697 GM |
2239 | |
2240 | /* Get the list of fonts matching PATTERN from the X server. */ | |
2241 | BLOCK_INPUT; | |
2242 | names = XListFonts (dpy, pattern, nfonts, &n); | |
2243 | UNBLOCK_INPUT; | |
d12d0a9b | 2244 | #endif /* HAVE_X_WINDOWS */ |
c3cee013 JR |
2245 | #ifdef WINDOWSNT |
2246 | /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be | |
2247 | better to do it the other way around. */ | |
2248 | Lisp_Object lfonts; | |
2249 | Lisp_Object lpattern, tem; | |
2250 | ||
2251 | n = 0; | |
2252 | names = NULL; | |
2253 | ||
2254 | lpattern = build_string (pattern); | |
2255 | ||
2256 | /* Get the list of fonts matching PATTERN. */ | |
2257 | BLOCK_INPUT; | |
2258 | lfonts = w32_list_fonts (f, lpattern, 0, nfonts); | |
2259 | UNBLOCK_INPUT; | |
2260 | ||
2261 | /* Count fonts returned */ | |
2262 | for (tem = lfonts; CONSP (tem); tem = XCDR (tem)) | |
2263 | n++; | |
2264 | ||
2265 | /* Allocate array. */ | |
2266 | if (n) | |
2267 | names = (char **) xmalloc (n * sizeof (char *)); | |
2268 | ||
2269 | /* Extract font names into char * array. */ | |
2270 | tem = lfonts; | |
2271 | for (i = 0; i < n; i++) | |
2272 | { | |
2273 | names[i] = XSTRING (XCAR (tem))->data; | |
2274 | tem = XCDR (tem); | |
2275 | } | |
d12d0a9b | 2276 | #endif /* WINDOWSNT */ |
82641697 GM |
2277 | |
2278 | if (names) | |
2279 | { | |
2280 | /* Make a copy of the font names we got from X, and | |
2281 | split them into fields. */ | |
2282 | for (i = j = 0; i < n; ++i) | |
2283 | { | |
2284 | /* Make a copy of the font name. */ | |
2285 | fonts[j].name = xstrdup (names[i]); | |
2286 | ||
2287 | /* Ignore fonts having a name that we can't parse. */ | |
2288 | if (!split_font_name (f, fonts + j, 1)) | |
2289 | xfree (fonts[j].name); | |
2290 | else if (font_scalable_p (fonts + j)) | |
2291 | { | |
82641697 GM |
2292 | if (!scalable_fonts_p |
2293 | || !may_use_scalable_font_p (fonts + j, names[i])) | |
2294 | xfree (fonts[j].name); | |
2295 | else | |
2296 | ++j; | |
82641697 GM |
2297 | } |
2298 | else | |
2299 | ++j; | |
2300 | } | |
2301 | ||
2302 | n = j; | |
2303 | ||
c3cee013 | 2304 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
2305 | /* Free font names. */ |
2306 | BLOCK_INPUT; | |
2307 | XFreeFontNames (names); | |
2308 | UNBLOCK_INPUT; | |
c3cee013 | 2309 | #endif |
82641697 | 2310 | } |
178c5d9c | 2311 | |
82641697 GM |
2312 | |
2313 | /* If no fonts found, try patterns from Valternate_fontname_alist. */ | |
2314 | if (n == 0 && try_alternatives_p) | |
2315 | { | |
2316 | Lisp_Object list = Valternate_fontname_alist; | |
2317 | ||
2318 | while (CONSP (list)) | |
2319 | { | |
2320 | Lisp_Object entry = XCAR (list); | |
2321 | if (CONSP (entry) | |
2322 | && STRINGP (XCAR (entry)) | |
2323 | && strcmp (XSTRING (XCAR (entry))->data, pattern) == 0) | |
2324 | break; | |
2325 | list = XCDR (list); | |
2326 | } | |
2327 | ||
2328 | if (CONSP (list)) | |
2329 | { | |
2330 | Lisp_Object patterns = XCAR (list); | |
2331 | Lisp_Object name; | |
178c5d9c | 2332 | |
82641697 GM |
2333 | while (CONSP (patterns) |
2334 | /* If list is screwed up, give up. */ | |
2335 | && (name = XCAR (patterns), | |
2336 | STRINGP (name)) | |
2337 | /* Ignore patterns equal to PATTERN because we tried that | |
2338 | already with no success. */ | |
2339 | && (strcmp (XSTRING (name)->data, pattern) == 0 | |
2340 | || (n = x_face_list_fonts (f, XSTRING (name)->data, | |
2341 | fonts, nfonts, 0, | |
2342 | scalable_fonts_p), | |
2343 | n == 0))) | |
2344 | patterns = XCDR (patterns); | |
2345 | } | |
2346 | } | |
178c5d9c | 2347 | |
82641697 GM |
2348 | return n; |
2349 | } | |
178c5d9c | 2350 | |
82641697 GM |
2351 | |
2352 | /* Determine the first font matching PATTERN on frame F. Return in | |
2353 | *FONT the matching font name, split into fields. Value is non-zero | |
2354 | if a match was found. */ | |
2355 | ||
2356 | static int | |
2357 | first_font_matching (f, pattern, font) | |
2358 | struct frame *f; | |
2359 | char *pattern; | |
2360 | struct font_name *font; | |
2361 | { | |
2362 | int nfonts = 100; | |
2363 | struct font_name *fonts; | |
2364 | ||
2365 | fonts = (struct font_name *) xmalloc (nfonts * sizeof *fonts); | |
2366 | nfonts = x_face_list_fonts (f, pattern, fonts, nfonts, 1, 0); | |
2367 | ||
2368 | if (nfonts > 0) | |
2369 | { | |
2370 | bcopy (&fonts[0], font, sizeof *font); | |
178c5d9c | 2371 | |
82641697 GM |
2372 | fonts[0].name = NULL; |
2373 | free_font_names (fonts, nfonts); | |
2374 | } | |
2375 | ||
2376 | return nfonts > 0; | |
2377 | } | |
2378 | ||
2379 | ||
2380 | /* Determine fonts matching PATTERN on frame F. Sort resulting fonts | |
2381 | using comparison function CMPFN. Value is the number of fonts | |
2382 | found. If value is non-zero, *FONTS is set to a vector of | |
2383 | font_name structures allocated from the heap containing matching | |
2384 | fonts. Each element of *FONTS contains a name member that is also | |
2385 | allocated from the heap. Font names in these structures are split | |
2386 | into fields. Use free_font_names to free such an array. */ | |
2387 | ||
2388 | static int | |
2389 | sorted_font_list (f, pattern, cmpfn, fonts) | |
2390 | struct frame *f; | |
2391 | char *pattern; | |
2392 | int (*cmpfn) P_ ((const void *, const void *)); | |
2393 | struct font_name **fonts; | |
2394 | { | |
2395 | int nfonts; | |
178c5d9c | 2396 | |
82641697 | 2397 | /* Get the list of fonts matching pattern. 100 should suffice. */ |
057df17c GM |
2398 | nfonts = DEFAULT_FONT_LIST_LIMIT; |
2399 | if (INTEGERP (Vfont_list_limit) && XINT (Vfont_list_limit) > 0) | |
2400 | nfonts = XFASTINT (Vfont_list_limit); | |
178c5d9c | 2401 | |
82641697 | 2402 | *fonts = (struct font_name *) xmalloc (nfonts * sizeof **fonts); |
82641697 | 2403 | nfonts = x_face_list_fonts (f, pattern, *fonts, nfonts, 1, 1); |
178c5d9c SS |
2404 | |
2405 | /* Sort the resulting array and return it in *FONTS. If no | |
82641697 GM |
2406 | fonts were found, make sure to set *FONTS to null. */ |
2407 | if (nfonts) | |
2408 | sort_fonts (f, *fonts, nfonts, cmpfn); | |
2409 | else | |
2410 | { | |
2411 | xfree (*fonts); | |
2412 | *fonts = NULL; | |
2413 | } | |
2414 | ||
2415 | return nfonts; | |
2416 | } | |
2417 | ||
2418 | ||
2419 | /* Compare two font_name structures *A and *B. Value is analogous to | |
2420 | strcmp. Sort order is given by the global variable | |
2421 | font_sort_order. Font names are sorted so that, everything else | |
2422 | being equal, fonts with a resolution closer to that of the frame on | |
2423 | which they are used are listed first. The global variable | |
2424 | font_frame is the frame on which we operate. */ | |
2425 | ||
2426 | static int | |
2427 | cmp_font_names (a, b) | |
2428 | const void *a, *b; | |
2429 | { | |
2430 | struct font_name *x = (struct font_name *) a; | |
2431 | struct font_name *y = (struct font_name *) b; | |
2432 | int cmp; | |
2433 | ||
2434 | /* All strings have been converted to lower-case by split_font_name, | |
2435 | so we can use strcmp here. */ | |
2436 | cmp = strcmp (x->fields[XLFD_FAMILY], y->fields[XLFD_FAMILY]); | |
2437 | if (cmp == 0) | |
2438 | { | |
2439 | int i; | |
178c5d9c | 2440 | |
82641697 GM |
2441 | for (i = 0; i < DIM (font_sort_order) && cmp == 0; ++i) |
2442 | { | |
2443 | int j = font_sort_order[i]; | |
2444 | cmp = x->numeric[j] - y->numeric[j]; | |
2445 | } | |
2446 | ||
2447 | if (cmp == 0) | |
2448 | { | |
2449 | /* Everything else being equal, we prefer fonts with an | |
2450 | y-resolution closer to that of the frame. */ | |
2451 | int resy = FRAME_X_DISPLAY_INFO (font_frame)->resy; | |
2452 | int x_resy = x->numeric[XLFD_RESY]; | |
2453 | int y_resy = y->numeric[XLFD_RESY]; | |
2454 | cmp = abs (resy - x_resy) - abs (resy - y_resy); | |
2455 | } | |
2456 | } | |
2457 | ||
2458 | return cmp; | |
2459 | } | |
2460 | ||
2461 | ||
2462 | /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN | |
39506348 KH |
2463 | is non-nil list fonts matching that pattern. Otherwise, if |
2464 | REGISTRY is non-nil return only fonts with that registry, otherwise | |
2465 | return fonts of any registry. Set *FONTS to a vector of font_name | |
2466 | structures allocated from the heap containing the fonts found. | |
2467 | Value is the number of fonts found. */ | |
82641697 GM |
2468 | |
2469 | static int | |
39506348 | 2470 | font_list (f, pattern, family, registry, fonts) |
82641697 | 2471 | struct frame *f; |
39506348 | 2472 | Lisp_Object pattern, family, registry; |
82641697 GM |
2473 | struct font_name **fonts; |
2474 | { | |
39506348 KH |
2475 | char *pattern_str, *family_str, *registry_str; |
2476 | ||
2477 | if (NILP (pattern)) | |
82641697 | 2478 | { |
39506348 KH |
2479 | family_str = (NILP (family) ? "*" : (char *) XSTRING (family)->data); |
2480 | registry_str = (NILP (registry) ? "*" : (char *) XSTRING (registry)->data); | |
178c5d9c | 2481 | |
39506348 | 2482 | pattern_str = (char *) alloca (strlen (family_str) |
0d1f7c08 KH |
2483 | + strlen (registry_str) |
2484 | + 10); | |
2485 | strcpy (pattern_str, index (family_str, '-') ? "-" : "-*-"); | |
2486 | strcat (pattern_str, family_str); | |
2487 | strcat (pattern_str, "-*-"); | |
2488 | strcat (pattern_str, registry_str); | |
2489 | if (!index (registry_str, '-')) | |
2490 | { | |
2491 | if (registry_str[strlen (registry_str) - 1] == '*') | |
2492 | strcat (pattern_str, "-*"); | |
2493 | else | |
2494 | strcat (pattern_str, "*-*"); | |
2495 | } | |
82641697 | 2496 | } |
39506348 KH |
2497 | else |
2498 | pattern_str = (char *) XSTRING (pattern)->data; | |
178c5d9c | 2499 | |
39506348 | 2500 | return sorted_font_list (f, pattern_str, cmp_font_names, fonts); |
82641697 GM |
2501 | } |
2502 | ||
2503 | ||
2504 | /* Remove elements from LIST whose cars are `equal'. Called from | |
92610620 | 2505 | x-family-fonts and x-font-family-list to remove duplicate font |
82641697 GM |
2506 | entries. */ |
2507 | ||
2508 | static void | |
2509 | remove_duplicates (list) | |
2510 | Lisp_Object list; | |
2511 | { | |
2512 | Lisp_Object tail = list; | |
178c5d9c | 2513 | |
82641697 GM |
2514 | while (!NILP (tail) && !NILP (XCDR (tail))) |
2515 | { | |
2516 | Lisp_Object next = XCDR (tail); | |
2517 | if (!NILP (Fequal (XCAR (next), XCAR (tail)))) | |
2518 | XCDR (tail) = XCDR (next); | |
2519 | else | |
2520 | tail = XCDR (tail); | |
2521 | } | |
2522 | } | |
2523 | ||
2524 | ||
92610620 | 2525 | DEFUN ("x-family-fonts", Fx_family_fonts, Sx_family_fonts, 0, 2, 0, |
82641697 GM |
2526 | "Return a list of available fonts of family FAMILY on FRAME.\n\ |
2527 | If FAMILY is omitted or nil, list all families.\n\ | |
2528 | Otherwise, FAMILY must be a string, possibly containing wildcards\n\ | |
2529 | `?' and `*'.\n\ | |
2530 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2531 | Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\ | |
057df17c | 2532 | SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\ |
82641697 GM |
2533 | FAMILY is the font family name. POINT-SIZE is the size of the\n\ |
2534 | font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\ | |
2535 | width, weight and slant of the font. These symbols are the same as for\n\ | |
2536 | face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\ | |
057df17c GM |
2537 | FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\ |
2538 | giving the registry and encoding of the font.\n\ | |
82641697 GM |
2539 | The result list is sorted according to the current setting of\n\ |
2540 | the face font sort order.") | |
2541 | (family, frame) | |
2542 | Lisp_Object family, frame; | |
2543 | { | |
2544 | struct frame *f = check_x_frame (frame); | |
2545 | struct font_name *fonts; | |
2546 | int i, nfonts; | |
2547 | Lisp_Object result; | |
2548 | struct gcpro gcpro1; | |
82641697 | 2549 | |
39506348 KH |
2550 | if (!NILP (family)) |
2551 | CHECK_STRING (family, 1); | |
178c5d9c | 2552 | |
82641697 GM |
2553 | result = Qnil; |
2554 | GCPRO1 (result); | |
39506348 | 2555 | nfonts = font_list (f, Qnil, family, Qnil, &fonts); |
82641697 GM |
2556 | for (i = nfonts - 1; i >= 0; --i) |
2557 | { | |
057df17c GM |
2558 | Lisp_Object v = Fmake_vector (make_number (8), Qnil); |
2559 | char *tem; | |
82641697 | 2560 | |
82641697 GM |
2561 | ASET (v, 0, build_string (fonts[i].fields[XLFD_FAMILY])); |
2562 | ASET (v, 1, xlfd_symbolic_swidth (fonts + i)); | |
2563 | ASET (v, 2, make_number (xlfd_point_size (f, fonts + i))); | |
2564 | ASET (v, 3, xlfd_symbolic_weight (fonts + i)); | |
2565 | ASET (v, 4, xlfd_symbolic_slant (fonts + i)); | |
2566 | ASET (v, 5, xlfd_fixed_p (fonts + i) ? Qt : Qnil); | |
057df17c GM |
2567 | tem = build_font_name (fonts + i); |
2568 | ASET (v, 6, build_string (tem)); | |
2569 | sprintf (tem, "%s-%s", fonts[i].fields[XLFD_REGISTRY], | |
2570 | fonts[i].fields[XLFD_ENCODING]); | |
2571 | ASET (v, 7, build_string (tem)); | |
2572 | xfree (tem); | |
178c5d9c | 2573 | |
82641697 | 2574 | result = Fcons (v, result); |
82641697 GM |
2575 | } |
2576 | ||
2577 | remove_duplicates (result); | |
2578 | free_font_names (fonts, nfonts); | |
2579 | UNGCPRO; | |
2580 | return result; | |
2581 | } | |
2582 | ||
2583 | ||
2584 | DEFUN ("x-font-family-list", Fx_font_family_list, Sx_font_family_list, | |
2585 | 0, 1, 0, | |
2586 | "Return a list of available font families on FRAME.\n\ | |
2587 | If FRAME is omitted or nil, use the selected frame.\n\ | |
2588 | Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\ | |
2589 | is a font family, and FIXED-P is non-nil if fonts of that family\n\ | |
2590 | are fixed-pitch.") | |
2591 | (frame) | |
2592 | Lisp_Object frame; | |
2593 | { | |
2594 | struct frame *f = check_x_frame (frame); | |
2595 | int nfonts, i; | |
2596 | struct font_name *fonts; | |
2597 | Lisp_Object result; | |
2598 | struct gcpro gcpro1; | |
057df17c GM |
2599 | int count = specpdl_ptr - specpdl; |
2600 | int limit; | |
2601 | ||
2602 | /* Let's consider all fonts. Increase the limit for matching | |
2603 | fonts until we have them all. */ | |
2604 | for (limit = 500;;) | |
2605 | { | |
2606 | specbind (intern ("font-list-limit"), make_number (limit)); | |
39506348 | 2607 | nfonts = font_list (f, Qnil, Qnil, Qnil, &fonts); |
178c5d9c | 2608 | |
057df17c GM |
2609 | if (nfonts == limit) |
2610 | { | |
2611 | free_font_names (fonts, nfonts); | |
2612 | limit *= 2; | |
2613 | } | |
2614 | else | |
2615 | break; | |
2616 | } | |
178c5d9c | 2617 | |
82641697 GM |
2618 | result = Qnil; |
2619 | GCPRO1 (result); | |
2620 | for (i = nfonts - 1; i >= 0; --i) | |
2621 | result = Fcons (Fcons (build_string (fonts[i].fields[XLFD_FAMILY]), | |
2622 | xlfd_fixed_p (fonts + i) ? Qt : Qnil), | |
2623 | result); | |
2624 | ||
2625 | remove_duplicates (result); | |
2626 | free_font_names (fonts, nfonts); | |
2627 | UNGCPRO; | |
057df17c | 2628 | return unbind_to (count, result); |
82641697 GM |
2629 | } |
2630 | ||
2631 | ||
2632 | DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 5, 0, | |
2633 | "Return a list of the names of available fonts matching PATTERN.\n\ | |
2634 | If optional arguments FACE and FRAME are specified, return only fonts\n\ | |
2635 | the same size as FACE on FRAME.\n\ | |
2636 | PATTERN is a string, perhaps with wildcard characters;\n\ | |
2637 | the * character matches any substring, and\n\ | |
2638 | the ? character matches any single character.\n\ | |
2639 | PATTERN is case-insensitive.\n\ | |
2640 | FACE is a face name--a symbol.\n\ | |
2641 | \n\ | |
2642 | The return value is a list of strings, suitable as arguments to\n\ | |
2643 | set-face-font.\n\ | |
2644 | \n\ | |
2645 | Fonts Emacs can't use may or may not be excluded\n\ | |
2646 | even if they match PATTERN and FACE.\n\ | |
2647 | The optional fourth argument MAXIMUM sets a limit on how many\n\ | |
2648 | fonts to match. The first MAXIMUM fonts are reported.\n\ | |
2649 | The optional fifth argument WIDTH, if specified, is a number of columns\n\ | |
2650 | occupied by a character of a font. In that case, return only fonts\n\ | |
2651 | the WIDTH times as wide as FACE on FRAME.") | |
2652 | (pattern, face, frame, maximum, width) | |
2653 | Lisp_Object pattern, face, frame, maximum, width; | |
2654 | { | |
2655 | struct frame *f; | |
2656 | int size; | |
2657 | int maxnames; | |
2658 | ||
2659 | check_x (); | |
2660 | CHECK_STRING (pattern, 0); | |
178c5d9c | 2661 | |
82641697 GM |
2662 | if (NILP (maximum)) |
2663 | maxnames = 2000; | |
2664 | else | |
2665 | { | |
2666 | CHECK_NATNUM (maximum, 0); | |
2667 | maxnames = XINT (maximum); | |
2668 | } | |
2669 | ||
2670 | if (!NILP (width)) | |
2671 | CHECK_NUMBER (width, 4); | |
2672 | ||
2673 | /* We can't simply call check_x_frame because this function may be | |
2674 | called before any frame is created. */ | |
2675 | f = frame_or_selected_frame (frame, 2); | |
c3cee013 | 2676 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
2677 | { |
2678 | /* Perhaps we have not yet created any frame. */ | |
2679 | f = NULL; | |
2680 | face = Qnil; | |
2681 | } | |
2682 | ||
2683 | /* Determine the width standard for comparison with the fonts we find. */ | |
2684 | ||
2685 | if (NILP (face)) | |
2686 | size = 0; | |
2687 | else | |
2688 | { | |
2689 | /* This is of limited utility since it works with character | |
2690 | widths. Keep it for compatibility. --gerd. */ | |
39506348 | 2691 | int face_id = lookup_named_face (f, face, 0); |
82641697 GM |
2692 | struct face *face = FACE_FROM_ID (f, face_id); |
2693 | ||
2694 | if (face->font) | |
c3cee013 | 2695 | size = FONT_WIDTH (face->font); |
82641697 | 2696 | else |
c3cee013 | 2697 | size = FONT_WIDTH (FRAME_FONT (f)); |
82641697 GM |
2698 | |
2699 | if (!NILP (width)) | |
2700 | size *= XINT (width); | |
2701 | } | |
2702 | ||
2703 | { | |
2704 | Lisp_Object args[2]; | |
2705 | ||
2706 | args[0] = x_list_fonts (f, pattern, size, maxnames); | |
2707 | if (f == NULL) | |
2708 | /* We don't have to check fontsets. */ | |
2709 | return args[0]; | |
2710 | args[1] = list_fontsets (f, pattern, size); | |
2711 | return Fnconc (2, args); | |
2712 | } | |
2713 | } | |
2714 | ||
c3cee013 | 2715 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
2716 | |
2717 | ||
2718 | \f | |
2719 | /*********************************************************************** | |
2720 | Lisp Faces | |
2721 | ***********************************************************************/ | |
2722 | ||
2723 | /* Access face attributes of face FACE, a Lisp vector. */ | |
2724 | ||
2725 | #define LFACE_FAMILY(LFACE) \ | |
2726 | XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX] | |
2727 | #define LFACE_HEIGHT(LFACE) \ | |
2728 | XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX] | |
2729 | #define LFACE_WEIGHT(LFACE) \ | |
2730 | XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX] | |
2731 | #define LFACE_SLANT(LFACE) \ | |
2732 | XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX] | |
2733 | #define LFACE_UNDERLINE(LFACE) \ | |
2734 | XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX] | |
2735 | #define LFACE_INVERSE(LFACE) \ | |
2736 | XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX] | |
2737 | #define LFACE_FOREGROUND(LFACE) \ | |
2738 | XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX] | |
2739 | #define LFACE_BACKGROUND(LFACE) \ | |
2740 | XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX] | |
2741 | #define LFACE_STIPPLE(LFACE) \ | |
2742 | XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX] | |
2743 | #define LFACE_SWIDTH(LFACE) \ | |
2744 | XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX] | |
2745 | #define LFACE_OVERLINE(LFACE) \ | |
2746 | XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX] | |
2747 | #define LFACE_STRIKE_THROUGH(LFACE) \ | |
2748 | XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX] | |
2749 | #define LFACE_BOX(LFACE) \ | |
2750 | XVECTOR (LFACE)->contents[LFACE_BOX_INDEX] | |
39506348 KH |
2751 | #define LFACE_FONT(LFACE) \ |
2752 | XVECTOR (LFACE)->contents[LFACE_FONT_INDEX] | |
2c20458f MB |
2753 | #define LFACE_INHERIT(LFACE) \ |
2754 | XVECTOR (LFACE)->contents[LFACE_INHERIT_INDEX] | |
82641697 GM |
2755 | |
2756 | /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size | |
2757 | LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */ | |
2758 | ||
2759 | #define LFACEP(LFACE) \ | |
2760 | (VECTORP (LFACE) \ | |
2761 | && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \ | |
2762 | && EQ (XVECTOR (LFACE)->contents[0], Qface)) | |
2763 | ||
178c5d9c | 2764 | |
82641697 GM |
2765 | #if GLYPH_DEBUG |
2766 | ||
2767 | /* Check consistency of Lisp face attribute vector ATTRS. */ | |
2768 | ||
2769 | static void | |
2770 | check_lface_attrs (attrs) | |
2771 | Lisp_Object *attrs; | |
2772 | { | |
2773 | xassert (UNSPECIFIEDP (attrs[LFACE_FAMILY_INDEX]) | |
2774 | || STRINGP (attrs[LFACE_FAMILY_INDEX])); | |
2775 | xassert (UNSPECIFIEDP (attrs[LFACE_SWIDTH_INDEX]) | |
2776 | || SYMBOLP (attrs[LFACE_SWIDTH_INDEX])); | |
2777 | xassert (UNSPECIFIEDP (attrs[LFACE_HEIGHT_INDEX]) | |
2c20458f MB |
2778 | || INTEGERP (attrs[LFACE_HEIGHT_INDEX]) |
2779 | || FLOATP (attrs[LFACE_HEIGHT_INDEX]) | |
2780 | || FUNCTIONP (attrs[LFACE_HEIGHT_INDEX])); | |
82641697 GM |
2781 | xassert (UNSPECIFIEDP (attrs[LFACE_WEIGHT_INDEX]) |
2782 | || SYMBOLP (attrs[LFACE_WEIGHT_INDEX])); | |
2783 | xassert (UNSPECIFIEDP (attrs[LFACE_SLANT_INDEX]) | |
2784 | || SYMBOLP (attrs[LFACE_SLANT_INDEX])); | |
2785 | xassert (UNSPECIFIEDP (attrs[LFACE_UNDERLINE_INDEX]) | |
2786 | || SYMBOLP (attrs[LFACE_UNDERLINE_INDEX]) | |
2787 | || STRINGP (attrs[LFACE_UNDERLINE_INDEX])); | |
2788 | xassert (UNSPECIFIEDP (attrs[LFACE_OVERLINE_INDEX]) | |
2789 | || SYMBOLP (attrs[LFACE_OVERLINE_INDEX]) | |
2790 | || STRINGP (attrs[LFACE_OVERLINE_INDEX])); | |
2791 | xassert (UNSPECIFIEDP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2792 | || SYMBOLP (attrs[LFACE_STRIKE_THROUGH_INDEX]) | |
2793 | || STRINGP (attrs[LFACE_STRIKE_THROUGH_INDEX])); | |
2794 | xassert (UNSPECIFIEDP (attrs[LFACE_BOX_INDEX]) | |
2795 | || SYMBOLP (attrs[LFACE_BOX_INDEX]) | |
2796 | || STRINGP (attrs[LFACE_BOX_INDEX]) | |
2797 | || INTEGERP (attrs[LFACE_BOX_INDEX]) | |
2798 | || CONSP (attrs[LFACE_BOX_INDEX])); | |
2799 | xassert (UNSPECIFIEDP (attrs[LFACE_INVERSE_INDEX]) | |
2800 | || SYMBOLP (attrs[LFACE_INVERSE_INDEX])); | |
2801 | xassert (UNSPECIFIEDP (attrs[LFACE_FOREGROUND_INDEX]) | |
2802 | || STRINGP (attrs[LFACE_FOREGROUND_INDEX])); | |
2803 | xassert (UNSPECIFIEDP (attrs[LFACE_BACKGROUND_INDEX]) | |
2804 | || STRINGP (attrs[LFACE_BACKGROUND_INDEX])); | |
2c20458f MB |
2805 | xassert (UNSPECIFIEDP (attrs[LFACE_INHERIT_INDEX]) |
2806 | || NILP (attrs[LFACE_INHERIT_INDEX]) | |
2807 | || SYMBOLP (attrs[LFACE_INHERIT_INDEX]) | |
2808 | || CONSP (attrs[LFACE_INHERIT_INDEX])); | |
82641697 GM |
2809 | #ifdef HAVE_WINDOW_SYSTEM |
2810 | xassert (UNSPECIFIEDP (attrs[LFACE_STIPPLE_INDEX]) | |
2811 | || SYMBOLP (attrs[LFACE_STIPPLE_INDEX]) | |
fef04523 | 2812 | || !NILP (Fbitmap_spec_p (attrs[LFACE_STIPPLE_INDEX]))); |
39506348 | 2813 | xassert (UNSPECIFIEDP (attrs[LFACE_FONT_INDEX]) |
d2cafc8c GM |
2814 | || NILP (attrs[LFACE_FONT_INDEX]) |
2815 | || STRINGP (attrs[LFACE_FONT_INDEX])); | |
82641697 GM |
2816 | #endif |
2817 | } | |
2818 | ||
2819 | ||
2820 | /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */ | |
2821 | ||
2822 | static void | |
2823 | check_lface (lface) | |
2824 | Lisp_Object lface; | |
2825 | { | |
2826 | if (!NILP (lface)) | |
2827 | { | |
2828 | xassert (LFACEP (lface)); | |
2829 | check_lface_attrs (XVECTOR (lface)->contents); | |
2830 | } | |
2831 | } | |
2832 | ||
2833 | #else /* GLYPH_DEBUG == 0 */ | |
2834 | ||
2835 | #define check_lface_attrs(attrs) (void) 0 | |
2836 | #define check_lface(lface) (void) 0 | |
2837 | ||
2838 | #endif /* GLYPH_DEBUG == 0 */ | |
2839 | ||
2840 | ||
39506348 | 2841 | /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it |
c7ae3284 GM |
2842 | to make it a symvol. If FACE_NAME is an alias for another face, |
2843 | return that face's name. */ | |
2844 | ||
2845 | static Lisp_Object | |
2846 | resolve_face_name (face_name) | |
2847 | Lisp_Object face_name; | |
2848 | { | |
2849 | Lisp_Object aliased; | |
178c5d9c | 2850 | |
c7ae3284 GM |
2851 | if (STRINGP (face_name)) |
2852 | face_name = intern (XSTRING (face_name)->data); | |
2853 | ||
2854 | for (;;) | |
2855 | { | |
2856 | aliased = Fget (face_name, Qface_alias); | |
2857 | if (NILP (aliased)) | |
2858 | break; | |
2859 | else | |
2860 | face_name = aliased; | |
2861 | } | |
2862 | ||
2863 | return face_name; | |
2864 | } | |
2865 | ||
2866 | ||
82641697 GM |
2867 | /* Return the face definition of FACE_NAME on frame F. F null means |
2868 | return the global definition. FACE_NAME may be a string or a | |
2869 | symbol (apparently Emacs 20.2 allows strings as face names in face | |
92610620 GM |
2870 | text properties; ediff uses that). If FACE_NAME is an alias for |
2871 | another face, return that face's definition. If SIGNAL_P is | |
2872 | non-zero, signal an error if FACE_NAME is not a valid face name. | |
2873 | If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face | |
2874 | name. */ | |
82641697 GM |
2875 | |
2876 | static INLINE Lisp_Object | |
2877 | lface_from_face_name (f, face_name, signal_p) | |
2878 | struct frame *f; | |
2879 | Lisp_Object face_name; | |
2880 | int signal_p; | |
2881 | { | |
c7ae3284 | 2882 | Lisp_Object lface; |
82641697 | 2883 | |
c7ae3284 | 2884 | face_name = resolve_face_name (face_name); |
92610620 | 2885 | |
82641697 GM |
2886 | if (f) |
2887 | lface = assq_no_quit (face_name, f->face_alist); | |
2888 | else | |
2889 | lface = assq_no_quit (face_name, Vface_new_frame_defaults); | |
2890 | ||
2891 | if (CONSP (lface)) | |
2892 | lface = XCDR (lface); | |
2893 | else if (signal_p) | |
2894 | signal_error ("Invalid face", face_name); | |
2895 | ||
2896 | check_lface (lface); | |
2897 | return lface; | |
2898 | } | |
2899 | ||
2900 | ||
2901 | /* Get face attributes of face FACE_NAME from frame-local faces on | |
2902 | frame F. Store the resulting attributes in ATTRS which must point | |
2903 | to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P | |
2904 | is non-zero, signal an error if FACE_NAME does not name a face. | |
2905 | Otherwise, value is zero if FACE_NAME is not a face. */ | |
2906 | ||
2907 | static INLINE int | |
2908 | get_lface_attributes (f, face_name, attrs, signal_p) | |
2909 | struct frame *f; | |
2910 | Lisp_Object face_name; | |
2911 | Lisp_Object *attrs; | |
2912 | int signal_p; | |
2913 | { | |
2914 | Lisp_Object lface; | |
2915 | int success_p; | |
2916 | ||
2917 | lface = lface_from_face_name (f, face_name, signal_p); | |
2918 | if (!NILP (lface)) | |
2919 | { | |
2920 | bcopy (XVECTOR (lface)->contents, attrs, | |
2921 | LFACE_VECTOR_SIZE * sizeof *attrs); | |
2922 | success_p = 1; | |
2923 | } | |
2924 | else | |
2925 | success_p = 0; | |
2926 | ||
2927 | return success_p; | |
2928 | } | |
2929 | ||
2930 | ||
2931 | /* Non-zero if all attributes in face attribute vector ATTRS are | |
2932 | specified, i.e. are non-nil. */ | |
2933 | ||
2934 | static int | |
2935 | lface_fully_specified_p (attrs) | |
2936 | Lisp_Object *attrs; | |
2937 | { | |
2938 | int i; | |
2939 | ||
2940 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
6288c62f GM |
2941 | if (i != LFACE_FONT_INDEX && i != LFACE_INHERIT_INDEX) |
2942 | if (UNSPECIFIEDP (attrs[i])) | |
2943 | break; | |
82641697 GM |
2944 | |
2945 | return i == LFACE_VECTOR_SIZE; | |
2946 | } | |
2947 | ||
c3cee013 | 2948 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 2949 | |
39506348 KH |
2950 | /* Set font-related attributes of Lisp face LFACE from the fullname of |
2951 | the font opened by FONTNAME. If FORCE_P is zero, set only | |
2952 | unspecified attributes of LFACE. The exception is `font' | |
2953 | attribute. It is set to FONTNAME as is regardless of FORCE_P. | |
2954 | ||
2955 | If FONTNAME is not available on frame F, | |
2956 | return 0 if MAY_FAIL_P is non-zero, otherwise abort. | |
2957 | If the fullname is not in a valid XLFD format, | |
2958 | return 0 if MAY_FAIL_P is non-zero, otherwise set normal values | |
2959 | in LFACE and return 1. | |
2960 | Otherwise, return 1. */ | |
178c5d9c | 2961 | |
82641697 | 2962 | static int |
39506348 | 2963 | set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p) |
82641697 GM |
2964 | struct frame *f; |
2965 | Lisp_Object lface; | |
39506348 | 2966 | Lisp_Object fontname; |
3221576b | 2967 | int force_p, may_fail_p; |
82641697 GM |
2968 | { |
2969 | struct font_name font; | |
2970 | char *buffer; | |
2971 | int pt; | |
39506348 KH |
2972 | int have_xlfd_p; |
2973 | int fontset; | |
2974 | char *font_name = XSTRING (fontname)->data; | |
2975 | struct font_info *font_info; | |
82641697 | 2976 | |
39506348 KH |
2977 | /* If FONTNAME is actually a fontset name, get ASCII font name of it. */ |
2978 | fontset = fs_query_fontset (fontname, 0); | |
2979 | if (fontset >= 0) | |
2980 | font_name = XSTRING (fontset_ascii (fontset))->data; | |
2981 | ||
2982 | /* Check if FONT_NAME is surely available on the system. Usually | |
2983 | FONT_NAME is already cached for the frame F and FS_LOAD_FONT | |
2984 | returns quickly. But, even if FONT_NAME is not yet cached, | |
2985 | caching it now is not futail because we anyway load the font | |
2986 | later. */ | |
2987 | BLOCK_INPUT; | |
2988 | font_info = FS_LOAD_FONT (f, 0, font_name, -1); | |
2989 | UNBLOCK_INPUT; | |
82641697 | 2990 | |
39506348 | 2991 | if (!font_info) |
3221576b GM |
2992 | { |
2993 | if (may_fail_p) | |
2994 | return 0; | |
39506348 | 2995 | abort (); |
3221576b | 2996 | } |
39506348 KH |
2997 | |
2998 | font.name = STRDUPA (font_info->full_name); | |
2999 | have_xlfd_p = split_font_name (f, &font, 1); | |
3221576b | 3000 | |
82641697 | 3001 | /* Set attributes only if unspecified, otherwise face defaults for |
39506348 KH |
3002 | new frames would never take effect. If we couldn't get a font |
3003 | name conforming to XLFD, set normal values. */ | |
178c5d9c | 3004 | |
82641697 GM |
3005 | if (force_p || UNSPECIFIEDP (LFACE_FAMILY (lface))) |
3006 | { | |
39506348 KH |
3007 | Lisp_Object val; |
3008 | if (have_xlfd_p) | |
3009 | { | |
3010 | buffer = (char *) alloca (strlen (font.fields[XLFD_FAMILY]) | |
3011 | + strlen (font.fields[XLFD_FOUNDRY]) | |
3012 | + 2); | |
3013 | sprintf (buffer, "%s-%s", font.fields[XLFD_FOUNDRY], | |
3014 | font.fields[XLFD_FAMILY]); | |
3015 | val = build_string (buffer); | |
3016 | } | |
3017 | else | |
3018 | val = build_string ("*"); | |
3019 | LFACE_FAMILY (lface) = val; | |
82641697 GM |
3020 | } |
3021 | ||
3022 | if (force_p || UNSPECIFIEDP (LFACE_HEIGHT (lface))) | |
3023 | { | |
39506348 KH |
3024 | if (have_xlfd_p) |
3025 | pt = xlfd_point_size (f, &font); | |
3026 | else | |
3027 | pt = pixel_point_size (f, font_info->height * 10); | |
82641697 GM |
3028 | xassert (pt > 0); |
3029 | LFACE_HEIGHT (lface) = make_number (pt); | |
3030 | } | |
3031 | ||
3032 | if (force_p || UNSPECIFIEDP (LFACE_SWIDTH (lface))) | |
39506348 KH |
3033 | LFACE_SWIDTH (lface) |
3034 | = have_xlfd_p ? xlfd_symbolic_swidth (&font) : Qnormal; | |
82641697 GM |
3035 | |
3036 | if (force_p || UNSPECIFIEDP (LFACE_WEIGHT (lface))) | |
39506348 KH |
3037 | LFACE_WEIGHT (lface) |
3038 | = have_xlfd_p ? xlfd_symbolic_weight (&font) : Qnormal; | |
82641697 GM |
3039 | |
3040 | if (force_p || UNSPECIFIEDP (LFACE_SLANT (lface))) | |
39506348 KH |
3041 | LFACE_SLANT (lface) |
3042 | = have_xlfd_p ? xlfd_symbolic_slant (&font) : Qnormal; | |
82641697 | 3043 | |
39506348 | 3044 | LFACE_FONT (lface) = fontname; |
178c5d9c | 3045 | |
82641697 GM |
3046 | return 1; |
3047 | } | |
d12d0a9b | 3048 | |
c3cee013 | 3049 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
3050 | |
3051 | ||
2c20458f MB |
3052 | /* Merges the face height FROM with the face height TO, and returns the |
3053 | merged height. If FROM is an invalid height, then INVALID is | |
3054 | returned instead. FROM may be a either an absolute face height or a | |
3055 | `relative' height, and TO must be an absolute height. The returned | |
3056 | value is always an absolute height. GCPRO is a lisp value that will | |
3057 | be protected from garbage-collection if this function makes a call | |
3058 | into lisp. */ | |
3059 | ||
3060 | Lisp_Object | |
3061 | merge_face_heights (from, to, invalid, gcpro) | |
3062 | Lisp_Object from, to, invalid, gcpro; | |
3063 | { | |
3064 | int result = 0; | |
3065 | ||
3066 | if (INTEGERP (from)) | |
3067 | result = XINT (from); | |
3068 | else if (NUMBERP (from)) | |
3069 | result = XFLOATINT (from) * XINT (to); | |
3070 | #if 0 /* Probably not so useful. */ | |
3071 | else if (CONSP (from) && CONSP (XCDR (from))) | |
3072 | { | |
3073 | if (EQ (XCAR(from), Qplus) || EQ (XCAR(from), Qminus)) | |
3074 | { | |
3075 | if (INTEGERP (XCAR (XCDR (from)))) | |
3076 | { | |
3077 | int inc = XINT (XCAR (XCDR (from))); | |
3078 | if (EQ (XCAR (from), Qminus)) | |
3079 | inc = -inc; | |
3080 | ||
3081 | result = XFASTINT (to); | |
3082 | if (result + inc > 0) | |
3083 | /* Note that `underflows' don't mean FROM is invalid, so | |
3084 | we just pin the result at TO if it would otherwise be | |
3085 | negative or 0. */ | |
3086 | result += inc; | |
3087 | } | |
3088 | } | |
3089 | } | |
3090 | #endif | |
3091 | else if (FUNCTIONP (from)) | |
3092 | { | |
3093 | /* Call function with current height as argument. | |
3094 | From is the new height. */ | |
3095 | Lisp_Object args[2], height; | |
3096 | struct gcpro gcpro1; | |
3097 | ||
3098 | GCPRO1 (gcpro); | |
3099 | ||
3100 | args[0] = from; | |
3101 | args[1] = to; | |
3102 | height = call_function (2, args); | |
3103 | ||
3104 | UNGCPRO; | |
3105 | ||
3106 | if (NUMBERP (height)) | |
3107 | result = XFLOATINT (height); | |
3108 | } | |
3109 | ||
3110 | if (result > 0) | |
3111 | return make_number (result); | |
3112 | else | |
3113 | return invalid; | |
3114 | } | |
3115 | ||
3116 | ||
3117 | /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and | |
613fa7f2 MB |
3118 | store the resulting attributes in TO, which must be already be |
3119 | completely specified and contain only absolute attributes. Every | |
3120 | specified attribute of FROM overrides the corresponding attribute of | |
3121 | TO; relative attributes in FROM are merged with the absolute value in | |
3122 | TO and replace it. CYCLE_CHECK is used internally to detect loops in | |
3123 | face inheritance; it should be Qnil when called from other places. */ | |
82641697 GM |
3124 | |
3125 | static INLINE void | |
2c20458f MB |
3126 | merge_face_vectors (f, from, to, cycle_check) |
3127 | struct frame *f; | |
82641697 | 3128 | Lisp_Object *from, *to; |
2c20458f | 3129 | Lisp_Object cycle_check; |
82641697 GM |
3130 | { |
3131 | int i; | |
2c20458f MB |
3132 | |
3133 | /* If FROM inherits from some other faces, merge their attributes into | |
3134 | TO before merging FROM's direct attributes. Note that an :inherit | |
3135 | attribute of `unspecified' is the same as one of nil; we never | |
3136 | merge :inherit attributes, so nil is more correct, but lots of | |
3137 | other code uses `unspecified' as a generic value for face attributes. */ | |
3138 | if (!UNSPECIFIEDP (from[LFACE_INHERIT_INDEX]) | |
3139 | && !NILP (from[LFACE_INHERIT_INDEX])) | |
3140 | merge_face_inheritance (f, from[LFACE_INHERIT_INDEX], to, cycle_check); | |
3141 | ||
87188200 MB |
3142 | /* If TO specifies a :font attribute, and FROM specifies some |
3143 | font-related attribute, we need to clear TO's :font attribute | |
3144 | (because it will be inconsistent with whatever FROM specifies, and | |
3145 | FROM takes precedence). */ | |
3146 | if (!NILP (to[LFACE_FONT_INDEX]) | |
3147 | && (!UNSPECIFIEDP (from[LFACE_FAMILY_INDEX]) | |
3148 | || !UNSPECIFIEDP (from[LFACE_HEIGHT_INDEX]) | |
3149 | || !UNSPECIFIEDP (from[LFACE_WEIGHT_INDEX]) | |
3150 | || !UNSPECIFIEDP (from[LFACE_SLANT_INDEX]) | |
3151 | || !UNSPECIFIEDP (from[LFACE_SWIDTH_INDEX]))) | |
3152 | to[LFACE_FONT_INDEX] = Qnil; | |
3153 | ||
82641697 GM |
3154 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) |
3155 | if (!UNSPECIFIEDP (from[i])) | |
2c20458f MB |
3156 | if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i])) |
3157 | to[i] = merge_face_heights (from[i], to[i], to[i], cycle_check); | |
3158 | else | |
3159 | to[i] = from[i]; | |
3160 | ||
3161 | /* TO is always an absolute face, which should inherit from nothing. | |
3162 | We blindly copy the :inherit attribute above and fix it up here. */ | |
3163 | to[LFACE_INHERIT_INDEX] = Qnil; | |
3164 | } | |
3165 | ||
6288c62f | 3166 | |
2c20458f MB |
3167 | /* Checks the `cycle check' variable CHECK to see if it indicates that |
3168 | EL is part of a cycle; CHECK must be either Qnil or a value returned | |
3169 | by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of | |
3170 | elements after which a cycle might be suspected; after that many | |
3171 | elements, this macro begins consing in order to keep more precise | |
3172 | track of elements. | |
3173 | ||
3174 | Returns NIL if a cycle was detected, otherwise a new value for CHECK | |
3175 | that includes EL. | |
3176 | ||
3177 | CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so | |
3178 | the caller should make sure that's ok. */ | |
6288c62f | 3179 | |
28e6fb66 GM |
3180 | #define CYCLE_CHECK(check, el, suspicious) \ |
3181 | (NILP (check) \ | |
3182 | ? make_number (0) \ | |
3183 | : (INTEGERP (check) \ | |
3184 | ? (XFASTINT (check) < (suspicious) \ | |
3185 | ? make_number (XFASTINT (check) + 1) \ | |
3186 | : Fcons (el, Qnil)) \ | |
3187 | : (!NILP (Fmemq ((el), (check))) \ | |
3188 | ? Qnil \ | |
3189 | : Fcons ((el), (check))))) | |
2c20458f | 3190 | |
87188200 MB |
3191 | |
3192 | /* Merge face attributes from the face on frame F whose name is | |
3193 | INHERITS, into the vector of face attributes TO; INHERITS may also be | |
3194 | a list of face names, in which case they are applied in order. | |
3195 | CYCLE_CHECK is used to detect loops in face inheritance. | |
3196 | Returns true if any of the inherited attributes are `font-related'. */ | |
3197 | ||
2c20458f MB |
3198 | static void |
3199 | merge_face_inheritance (f, inherit, to, cycle_check) | |
3200 | struct frame *f; | |
3201 | Lisp_Object inherit; | |
3202 | Lisp_Object *to; | |
3203 | Lisp_Object cycle_check; | |
3204 | { | |
3205 | if (SYMBOLP (inherit) && !EQ (inherit, Qunspecified)) | |
3206 | /* Inherit from the named face INHERIT. */ | |
3207 | { | |
3208 | Lisp_Object lface; | |
3209 | ||
3210 | /* Make sure we're not in an inheritance loop. */ | |
3211 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3212 | if (NILP (cycle_check)) | |
3213 | /* Cycle detected, ignore any further inheritance. */ | |
3214 | return; | |
3215 | ||
3216 | lface = lface_from_face_name (f, inherit, 0); | |
3217 | if (!NILP (lface)) | |
3218 | merge_face_vectors (f, XVECTOR (lface)->contents, to, cycle_check); | |
3219 | } | |
3220 | else if (CONSP (inherit)) | |
3221 | /* Handle a list of inherited faces by calling ourselves recursively | |
3222 | on each element. Note that we only do so for symbol elements, so | |
3223 | it's not possible to infinitely recurse. */ | |
3224 | { | |
3225 | while (CONSP (inherit)) | |
3226 | { | |
3227 | if (SYMBOLP (XCAR (inherit))) | |
3228 | merge_face_inheritance (f, XCAR (inherit), to, cycle_check); | |
3229 | ||
3230 | /* Check for a circular inheritance list. */ | |
3231 | cycle_check = CYCLE_CHECK (cycle_check, inherit, 15); | |
3232 | if (NILP (cycle_check)) | |
3233 | /* Cycle detected. */ | |
3234 | break; | |
3235 | ||
3236 | inherit = XCDR (inherit); | |
3237 | } | |
3238 | } | |
82641697 GM |
3239 | } |
3240 | ||
3241 | ||
3242 | /* Given a Lisp face attribute vector TO and a Lisp object PROP that | |
3243 | is a face property, determine the resulting face attributes on | |
3244 | frame F, and store them in TO. PROP may be a single face | |
3245 | specification or a list of such specifications. Each face | |
3246 | specification can be | |
3247 | ||
3248 | 1. A symbol or string naming a Lisp face. | |
3249 | ||
3250 | 2. A property list of the form (KEYWORD VALUE ...) where each | |
3251 | KEYWORD is a face attribute name, and value is an appropriate value | |
3252 | for that attribute. | |
3253 | ||
3254 | 3. Conses or the form (FOREGROUND-COLOR . COLOR) or | |
3255 | (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is | |
3256 | for compatibility with 20.2. | |
3257 | ||
3258 | Face specifications earlier in lists take precedence over later | |
3259 | specifications. */ | |
178c5d9c | 3260 | |
82641697 GM |
3261 | static void |
3262 | merge_face_vector_with_property (f, to, prop) | |
3263 | struct frame *f; | |
3264 | Lisp_Object *to; | |
3265 | Lisp_Object prop; | |
3266 | { | |
3267 | if (CONSP (prop)) | |
3268 | { | |
3269 | Lisp_Object first = XCAR (prop); | |
178c5d9c | 3270 | |
82641697 GM |
3271 | if (EQ (first, Qforeground_color) |
3272 | || EQ (first, Qbackground_color)) | |
3273 | { | |
3274 | /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR | |
3275 | . COLOR). COLOR must be a string. */ | |
3276 | Lisp_Object color_name = XCDR (prop); | |
3277 | Lisp_Object color = first; | |
3278 | ||
3279 | if (STRINGP (color_name)) | |
3280 | { | |
3281 | if (EQ (color, Qforeground_color)) | |
3282 | to[LFACE_FOREGROUND_INDEX] = color_name; | |
3283 | else | |
3284 | to[LFACE_BACKGROUND_INDEX] = color_name; | |
3285 | } | |
3286 | else | |
1b8f7fbc | 3287 | add_to_log ("Invalid face color", color_name, Qnil); |
82641697 GM |
3288 | } |
3289 | else if (SYMBOLP (first) | |
3290 | && *XSYMBOL (first)->name->data == ':') | |
3291 | { | |
3292 | /* Assume this is the property list form. */ | |
3293 | while (CONSP (prop) && CONSP (XCDR (prop))) | |
3294 | { | |
3295 | Lisp_Object keyword = XCAR (prop); | |
3296 | Lisp_Object value = XCAR (XCDR (prop)); | |
3297 | ||
3298 | if (EQ (keyword, QCfamily)) | |
3299 | { | |
3300 | if (STRINGP (value)) | |
3301 | to[LFACE_FAMILY_INDEX] = value; | |
3302 | else | |
1a948b17 | 3303 | add_to_log ("Invalid face font family", value, Qnil); |
82641697 GM |
3304 | } |
3305 | else if (EQ (keyword, QCheight)) | |
3306 | { | |
2c20458f MB |
3307 | Lisp_Object new_height = |
3308 | merge_face_heights (value, to[LFACE_HEIGHT_INDEX], | |
3309 | Qnil, Qnil); | |
3310 | ||
3311 | if (NILP (new_height)) | |
1a948b17 | 3312 | add_to_log ("Invalid face font height", value, Qnil); |
2c20458f MB |
3313 | else |
3314 | to[LFACE_HEIGHT_INDEX] = new_height; | |
82641697 GM |
3315 | } |
3316 | else if (EQ (keyword, QCweight)) | |
3317 | { | |
3318 | if (SYMBOLP (value) | |
3319 | && face_numeric_weight (value) >= 0) | |
3320 | to[LFACE_WEIGHT_INDEX] = value; | |
3321 | else | |
1a948b17 | 3322 | add_to_log ("Invalid face weight", value, Qnil); |
82641697 GM |
3323 | } |
3324 | else if (EQ (keyword, QCslant)) | |
3325 | { | |
3326 | if (SYMBOLP (value) | |
3327 | && face_numeric_slant (value) >= 0) | |
3328 | to[LFACE_SLANT_INDEX] = value; | |
3329 | else | |
1a948b17 | 3330 | add_to_log ("Invalid face slant", value, Qnil); |
82641697 GM |
3331 | } |
3332 | else if (EQ (keyword, QCunderline)) | |
3333 | { | |
3334 | if (EQ (value, Qt) | |
3335 | || NILP (value) | |
3336 | || STRINGP (value)) | |
3337 | to[LFACE_UNDERLINE_INDEX] = value; | |
3338 | else | |
1a948b17 | 3339 | add_to_log ("Invalid face underline", value, Qnil); |
82641697 GM |
3340 | } |
3341 | else if (EQ (keyword, QCoverline)) | |
3342 | { | |
3343 | if (EQ (value, Qt) | |
3344 | || NILP (value) | |
3345 | || STRINGP (value)) | |
3346 | to[LFACE_OVERLINE_INDEX] = value; | |
3347 | else | |
1a948b17 | 3348 | add_to_log ("Invalid face overline", value, Qnil); |
82641697 GM |
3349 | } |
3350 | else if (EQ (keyword, QCstrike_through)) | |
3351 | { | |
3352 | if (EQ (value, Qt) | |
3353 | || NILP (value) | |
3354 | || STRINGP (value)) | |
3355 | to[LFACE_STRIKE_THROUGH_INDEX] = value; | |
3356 | else | |
1a948b17 | 3357 | add_to_log ("Invalid face strike-through", value, Qnil); |
82641697 GM |
3358 | } |
3359 | else if (EQ (keyword, QCbox)) | |
3360 | { | |
3361 | if (EQ (value, Qt)) | |
3362 | value = make_number (1); | |
3363 | if (INTEGERP (value) | |
3364 | || STRINGP (value) | |
3365 | || CONSP (value) | |
3366 | || NILP (value)) | |
3367 | to[LFACE_BOX_INDEX] = value; | |
3368 | else | |
1a948b17 | 3369 | add_to_log ("Invalid face box", value, Qnil); |
82641697 GM |
3370 | } |
3371 | else if (EQ (keyword, QCinverse_video) | |
3372 | || EQ (keyword, QCreverse_video)) | |
3373 | { | |
3374 | if (EQ (value, Qt) || NILP (value)) | |
3375 | to[LFACE_INVERSE_INDEX] = value; | |
3376 | else | |
1a948b17 | 3377 | add_to_log ("Invalid face inverse-video", value, Qnil); |
82641697 GM |
3378 | } |
3379 | else if (EQ (keyword, QCforeground)) | |
3380 | { | |
3381 | if (STRINGP (value)) | |
3382 | to[LFACE_FOREGROUND_INDEX] = value; | |
3383 | else | |
1a948b17 | 3384 | add_to_log ("Invalid face foreground", value, Qnil); |
82641697 GM |
3385 | } |
3386 | else if (EQ (keyword, QCbackground)) | |
3387 | { | |
3388 | if (STRINGP (value)) | |
3389 | to[LFACE_BACKGROUND_INDEX] = value; | |
3390 | else | |
1a948b17 | 3391 | add_to_log ("Invalid face background", value, Qnil); |
82641697 GM |
3392 | } |
3393 | else if (EQ (keyword, QCstipple)) | |
3394 | { | |
3395 | #ifdef HAVE_X_WINDOWS | |
fef04523 | 3396 | Lisp_Object pixmap_p = Fbitmap_spec_p (value); |
82641697 GM |
3397 | if (!NILP (pixmap_p)) |
3398 | to[LFACE_STIPPLE_INDEX] = value; | |
3399 | else | |
1a948b17 | 3400 | add_to_log ("Invalid face stipple", value, Qnil); |
82641697 GM |
3401 | #endif |
3402 | } | |
3403 | else if (EQ (keyword, QCwidth)) | |
3404 | { | |
3405 | if (SYMBOLP (value) | |
3406 | && face_numeric_swidth (value) >= 0) | |
3407 | to[LFACE_SWIDTH_INDEX] = value; | |
3408 | else | |
1a948b17 | 3409 | add_to_log ("Invalid face width", value, Qnil); |
82641697 | 3410 | } |
2c20458f MB |
3411 | else if (EQ (keyword, QCinherit)) |
3412 | { | |
3413 | if (SYMBOLP (value)) | |
3414 | to[LFACE_INHERIT_INDEX] = value; | |
3415 | else | |
3416 | { | |
3417 | Lisp_Object tail; | |
3418 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3419 | if (!SYMBOLP (XCAR (tail))) | |
3420 | break; | |
3421 | if (NILP (tail)) | |
3422 | to[LFACE_INHERIT_INDEX] = value; | |
3423 | else | |
3424 | add_to_log ("Invalid face inherit", value, Qnil); | |
3425 | } | |
3426 | } | |
82641697 | 3427 | else |
1b8f7fbc | 3428 | add_to_log ("Invalid attribute %s in face property", |
7dbdfcf8 | 3429 | keyword, Qnil); |
82641697 GM |
3430 | |
3431 | prop = XCDR (XCDR (prop)); | |
3432 | } | |
3433 | } | |
3434 | else | |
3435 | { | |
3436 | /* This is a list of face specs. Specifications at the | |
3437 | beginning of the list take precedence over later | |
3438 | specifications, so we have to merge starting with the | |
3439 | last specification. */ | |
3440 | Lisp_Object next = XCDR (prop); | |
3441 | if (!NILP (next)) | |
3442 | merge_face_vector_with_property (f, to, next); | |
3443 | merge_face_vector_with_property (f, to, first); | |
3444 | } | |
3445 | } | |
3446 | else | |
3447 | { | |
3448 | /* PROP ought to be a face name. */ | |
3449 | Lisp_Object lface = lface_from_face_name (f, prop, 0); | |
3450 | if (NILP (lface)) | |
1b8f7fbc | 3451 | add_to_log ("Invalid face text property value: %s", prop, Qnil); |
82641697 | 3452 | else |
2c20458f | 3453 | merge_face_vectors (f, XVECTOR (lface)->contents, to, Qnil); |
82641697 GM |
3454 | } |
3455 | } | |
3456 | ||
3457 | ||
3458 | DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face, | |
3459 | Sinternal_make_lisp_face, 1, 2, 0, | |
3460 | "Make FACE, a symbol, a Lisp face with all attributes nil.\n\ | |
3461 | If FACE was not known as a face before, create a new one.\n\ | |
3462 | If optional argument FRAME is specified, make a frame-local face\n\ | |
3463 | for that frame. Otherwise operate on the global face definition.\n\ | |
3464 | Value is a vector of face attributes.") | |
3465 | (face, frame) | |
3466 | Lisp_Object face, frame; | |
3467 | { | |
3468 | Lisp_Object global_lface, lface; | |
3469 | struct frame *f; | |
3470 | int i; | |
3471 | ||
3472 | CHECK_SYMBOL (face, 0); | |
3473 | global_lface = lface_from_face_name (NULL, face, 0); | |
178c5d9c | 3474 | |
82641697 GM |
3475 | if (!NILP (frame)) |
3476 | { | |
3477 | CHECK_LIVE_FRAME (frame, 1); | |
3478 | f = XFRAME (frame); | |
3479 | lface = lface_from_face_name (f, face, 0); | |
3480 | } | |
3481 | else | |
3482 | f = NULL, lface = Qnil; | |
3483 | ||
3484 | /* Add a global definition if there is none. */ | |
3485 | if (NILP (global_lface)) | |
3486 | { | |
3487 | global_lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3488 | Qunspecified); | |
3489 | XVECTOR (global_lface)->contents[0] = Qface; | |
178c5d9c | 3490 | Vface_new_frame_defaults = Fcons (Fcons (face, global_lface), |
82641697 | 3491 | Vface_new_frame_defaults); |
178c5d9c | 3492 | |
82641697 GM |
3493 | /* Assign the new Lisp face a unique ID. The mapping from Lisp |
3494 | face id to Lisp face is given by the vector lface_id_to_name. | |
3495 | The mapping from Lisp face to Lisp face id is given by the | |
3496 | property `face' of the Lisp face name. */ | |
3497 | if (next_lface_id == lface_id_to_name_size) | |
3498 | { | |
3499 | int new_size = max (50, 2 * lface_id_to_name_size); | |
3500 | int sz = new_size * sizeof *lface_id_to_name; | |
3501 | lface_id_to_name = (Lisp_Object *) xrealloc (lface_id_to_name, sz); | |
3502 | lface_id_to_name_size = new_size; | |
3503 | } | |
178c5d9c | 3504 | |
82641697 GM |
3505 | lface_id_to_name[next_lface_id] = face; |
3506 | Fput (face, Qface, make_number (next_lface_id)); | |
3507 | ++next_lface_id; | |
3508 | } | |
3509 | else if (f == NULL) | |
3510 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3511 | XVECTOR (global_lface)->contents[i] = Qunspecified; | |
178c5d9c | 3512 | |
82641697 GM |
3513 | /* Add a frame-local definition. */ |
3514 | if (f) | |
3515 | { | |
3516 | if (NILP (lface)) | |
3517 | { | |
3518 | lface = Fmake_vector (make_number (LFACE_VECTOR_SIZE), | |
3519 | Qunspecified); | |
3520 | XVECTOR (lface)->contents[0] = Qface; | |
3521 | f->face_alist = Fcons (Fcons (face, lface), f->face_alist); | |
3522 | } | |
3523 | else | |
3524 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
3525 | XVECTOR (lface)->contents[i] = Qunspecified; | |
3526 | } | |
3527 | else | |
3528 | lface = global_lface; | |
3529 | ||
3530 | xassert (LFACEP (lface)); | |
3531 | check_lface (lface); | |
3532 | return lface; | |
3533 | } | |
3534 | ||
3535 | ||
3536 | DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p, | |
3537 | Sinternal_lisp_face_p, 1, 2, 0, | |
3538 | "Return non-nil if FACE names a face.\n\ | |
3539 | If optional second parameter FRAME is non-nil, check for the\n\ | |
3540 | existence of a frame-local face with name FACE on that frame.\n\ | |
3541 | Otherwise check for the existence of a global face.") | |
3542 | (face, frame) | |
3543 | Lisp_Object face, frame; | |
3544 | { | |
3545 | Lisp_Object lface; | |
178c5d9c | 3546 | |
82641697 GM |
3547 | if (!NILP (frame)) |
3548 | { | |
3549 | CHECK_LIVE_FRAME (frame, 1); | |
3550 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
3551 | } | |
3552 | else | |
3553 | lface = lface_from_face_name (NULL, face, 0); | |
3554 | ||
3555 | return lface; | |
3556 | } | |
3557 | ||
3558 | ||
3559 | DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face, | |
3560 | Sinternal_copy_lisp_face, 4, 4, 0, | |
3561 | "Copy face FROM to TO.\n\ | |
3562 | If FRAME it t, copy the global face definition of FROM to the\n\ | |
3563 | global face definition of TO. Otherwise, copy the frame-local\n\ | |
3564 | definition of FROM on FRAME to the frame-local definition of TO\n\ | |
3565 | on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\ | |
3566 | \n\ | |
3567 | Value is TO.") | |
3568 | (from, to, frame, new_frame) | |
3569 | Lisp_Object from, to, frame, new_frame; | |
3570 | { | |
3571 | Lisp_Object lface, copy; | |
178c5d9c | 3572 | |
82641697 GM |
3573 | CHECK_SYMBOL (from, 0); |
3574 | CHECK_SYMBOL (to, 1); | |
3575 | if (NILP (new_frame)) | |
3576 | new_frame = frame; | |
3577 | ||
3578 | if (EQ (frame, Qt)) | |
3579 | { | |
3580 | /* Copy global definition of FROM. We don't make copies of | |
3581 | strings etc. because 20.2 didn't do it either. */ | |
3582 | lface = lface_from_face_name (NULL, from, 1); | |
3583 | copy = Finternal_make_lisp_face (to, Qnil); | |
3584 | } | |
3585 | else | |
3586 | { | |
3587 | /* Copy frame-local definition of FROM. */ | |
3588 | CHECK_LIVE_FRAME (frame, 2); | |
3589 | CHECK_LIVE_FRAME (new_frame, 3); | |
3590 | lface = lface_from_face_name (XFRAME (frame), from, 1); | |
3591 | copy = Finternal_make_lisp_face (to, new_frame); | |
3592 | } | |
178c5d9c | 3593 | |
82641697 GM |
3594 | bcopy (XVECTOR (lface)->contents, XVECTOR (copy)->contents, |
3595 | LFACE_VECTOR_SIZE * sizeof (Lisp_Object)); | |
178c5d9c | 3596 | |
82641697 GM |
3597 | return to; |
3598 | } | |
3599 | ||
3600 | ||
3601 | DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute, | |
3602 | Sinternal_set_lisp_face_attribute, 3, 4, 0, | |
3603 | "Set attribute ATTR of FACE to VALUE.\n\ | |
628436fb GM |
3604 | FRAME being a frame means change the face on that frame.\n\ |
3605 | FRAME nil means change change the face of the selected frame.\n\ | |
3606 | FRAME t means change the default for new frames.\n\ | |
3607 | FRAME 0 means change the face on all frames, and change the default\n\ | |
3608 | for new frames.") | |
82641697 GM |
3609 | (face, attr, value, frame) |
3610 | Lisp_Object face, attr, value, frame; | |
3611 | { | |
3612 | Lisp_Object lface; | |
3613 | Lisp_Object old_value = Qnil; | |
39506348 KH |
3614 | /* Set 1 if ATTR is QCfont. */ |
3615 | int font_attr_p = 0; | |
3616 | /* Set 1 if ATTR is one of font-related attributes other than QCfont. */ | |
82641697 | 3617 | int font_related_attr_p = 0; |
178c5d9c | 3618 | |
82641697 GM |
3619 | CHECK_SYMBOL (face, 0); |
3620 | CHECK_SYMBOL (attr, 1); | |
3621 | ||
c7ae3284 GM |
3622 | face = resolve_face_name (face); |
3623 | ||
628436fb GM |
3624 | /* If FRAME is 0, change face on all frames, and change the |
3625 | default for new frames. */ | |
3626 | if (INTEGERP (frame) && XINT (frame) == 0) | |
3627 | { | |
3628 | Lisp_Object tail; | |
d12d0a9b | 3629 | Finternal_set_lisp_face_attribute (face, attr, value, Qt); |
628436fb GM |
3630 | FOR_EACH_FRAME (tail, frame) |
3631 | Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
d12d0a9b | 3632 | return face; |
628436fb GM |
3633 | } |
3634 | ||
82641697 GM |
3635 | /* Set lface to the Lisp attribute vector of FACE. */ |
3636 | if (EQ (frame, Qt)) | |
3637 | lface = lface_from_face_name (NULL, face, 1); | |
3638 | else | |
3639 | { | |
3640 | if (NILP (frame)) | |
c0617987 | 3641 | frame = selected_frame; |
178c5d9c | 3642 | |
82641697 GM |
3643 | CHECK_LIVE_FRAME (frame, 3); |
3644 | lface = lface_from_face_name (XFRAME (frame), face, 0); | |
178c5d9c | 3645 | |
82641697 GM |
3646 | /* If a frame-local face doesn't exist yet, create one. */ |
3647 | if (NILP (lface)) | |
3648 | lface = Finternal_make_lisp_face (face, frame); | |
3649 | } | |
3650 | ||
3651 | if (EQ (attr, QCfamily)) | |
3652 | { | |
3653 | if (!UNSPECIFIEDP (value)) | |
3654 | { | |
3655 | CHECK_STRING (value, 3); | |
3656 | if (XSTRING (value)->size == 0) | |
3657 | signal_error ("Invalid face family", value); | |
3658 | } | |
3659 | old_value = LFACE_FAMILY (lface); | |
3660 | LFACE_FAMILY (lface) = value; | |
3661 | font_related_attr_p = 1; | |
3662 | } | |
3663 | else if (EQ (attr, QCheight)) | |
3664 | { | |
3665 | if (!UNSPECIFIEDP (value)) | |
3666 | { | |
cec33c90 SM |
3667 | Lisp_Object test = |
3668 | (EQ (face, Qdefault) ? value : | |
3669 | /* The default face must have an absolute size, otherwise, we do | |
3670 | a test merge with a random height to see if VALUE's ok. */ | |
3671 | merge_face_heights (value, make_number(10), Qnil, Qnil)); | |
2c20458f MB |
3672 | |
3673 | if (!INTEGERP(test) || XINT(test) <= 0) | |
82641697 GM |
3674 | signal_error ("Invalid face height", value); |
3675 | } | |
2c20458f | 3676 | |
82641697 GM |
3677 | old_value = LFACE_HEIGHT (lface); |
3678 | LFACE_HEIGHT (lface) = value; | |
3679 | font_related_attr_p = 1; | |
3680 | } | |
3681 | else if (EQ (attr, QCweight)) | |
3682 | { | |
3683 | if (!UNSPECIFIEDP (value)) | |
3684 | { | |
3685 | CHECK_SYMBOL (value, 3); | |
3686 | if (face_numeric_weight (value) < 0) | |
3687 | signal_error ("Invalid face weight", value); | |
3688 | } | |
3689 | old_value = LFACE_WEIGHT (lface); | |
3690 | LFACE_WEIGHT (lface) = value; | |
3691 | font_related_attr_p = 1; | |
3692 | } | |
3693 | else if (EQ (attr, QCslant)) | |
3694 | { | |
3695 | if (!UNSPECIFIEDP (value)) | |
3696 | { | |
3697 | CHECK_SYMBOL (value, 3); | |
3698 | if (face_numeric_slant (value) < 0) | |
3699 | signal_error ("Invalid face slant", value); | |
3700 | } | |
3701 | old_value = LFACE_SLANT (lface); | |
3702 | LFACE_SLANT (lface) = value; | |
3703 | font_related_attr_p = 1; | |
3704 | } | |
3705 | else if (EQ (attr, QCunderline)) | |
3706 | { | |
3707 | if (!UNSPECIFIEDP (value)) | |
3708 | if ((SYMBOLP (value) | |
3709 | && !EQ (value, Qt) | |
3710 | && !EQ (value, Qnil)) | |
3711 | /* Underline color. */ | |
3712 | || (STRINGP (value) | |
3713 | && XSTRING (value)->size == 0)) | |
3714 | signal_error ("Invalid face underline", value); | |
178c5d9c | 3715 | |
82641697 GM |
3716 | old_value = LFACE_UNDERLINE (lface); |
3717 | LFACE_UNDERLINE (lface) = value; | |
3718 | } | |
3719 | else if (EQ (attr, QCoverline)) | |
3720 | { | |
3721 | if (!UNSPECIFIEDP (value)) | |
3722 | if ((SYMBOLP (value) | |
3723 | && !EQ (value, Qt) | |
3724 | && !EQ (value, Qnil)) | |
3725 | /* Overline color. */ | |
3726 | || (STRINGP (value) | |
3727 | && XSTRING (value)->size == 0)) | |
3728 | signal_error ("Invalid face overline", value); | |
178c5d9c | 3729 | |
82641697 GM |
3730 | old_value = LFACE_OVERLINE (lface); |
3731 | LFACE_OVERLINE (lface) = value; | |
3732 | } | |
3733 | else if (EQ (attr, QCstrike_through)) | |
3734 | { | |
3735 | if (!UNSPECIFIEDP (value)) | |
3736 | if ((SYMBOLP (value) | |
3737 | && !EQ (value, Qt) | |
3738 | && !EQ (value, Qnil)) | |
3739 | /* Strike-through color. */ | |
3740 | || (STRINGP (value) | |
3741 | && XSTRING (value)->size == 0)) | |
3742 | signal_error ("Invalid face strike-through", value); | |
178c5d9c | 3743 | |
82641697 GM |
3744 | old_value = LFACE_STRIKE_THROUGH (lface); |
3745 | LFACE_STRIKE_THROUGH (lface) = value; | |
3746 | } | |
3747 | else if (EQ (attr, QCbox)) | |
3748 | { | |
3749 | int valid_p; | |
178c5d9c | 3750 | |
82641697 GM |
3751 | /* Allow t meaning a simple box of width 1 in foreground color |
3752 | of the face. */ | |
3753 | if (EQ (value, Qt)) | |
3754 | value = make_number (1); | |
3755 | ||
3756 | if (UNSPECIFIEDP (value)) | |
3757 | valid_p = 1; | |
3758 | else if (NILP (value)) | |
3759 | valid_p = 1; | |
3760 | else if (INTEGERP (value)) | |
3761 | valid_p = XINT (value) > 0; | |
3762 | else if (STRINGP (value)) | |
3763 | valid_p = XSTRING (value)->size > 0; | |
3764 | else if (CONSP (value)) | |
3765 | { | |
3766 | Lisp_Object tem; | |
178c5d9c | 3767 | |
82641697 GM |
3768 | tem = value; |
3769 | while (CONSP (tem)) | |
3770 | { | |
3771 | Lisp_Object k, v; | |
3772 | ||
3773 | k = XCAR (tem); | |
3774 | tem = XCDR (tem); | |
3775 | if (!CONSP (tem)) | |
3776 | break; | |
3777 | v = XCAR (tem); | |
3778 | tem = XCDR (tem); | |
178c5d9c | 3779 | |
82641697 GM |
3780 | if (EQ (k, QCline_width)) |
3781 | { | |
3782 | if (!INTEGERP (v) || XINT (v) <= 0) | |
3783 | break; | |
3784 | } | |
3785 | else if (EQ (k, QCcolor)) | |
3786 | { | |
3787 | if (!STRINGP (v) || XSTRING (v)->size == 0) | |
3788 | break; | |
3789 | } | |
3790 | else if (EQ (k, QCstyle)) | |
3791 | { | |
3792 | if (!EQ (v, Qpressed_button) && !EQ (v, Qreleased_button)) | |
3793 | break; | |
3794 | } | |
3795 | else | |
3796 | break; | |
3797 | } | |
3798 | ||
3799 | valid_p = NILP (tem); | |
3800 | } | |
3801 | else | |
3802 | valid_p = 0; | |
3803 | ||
3804 | if (!valid_p) | |
3805 | signal_error ("Invalid face box", value); | |
178c5d9c | 3806 | |
82641697 GM |
3807 | old_value = LFACE_BOX (lface); |
3808 | LFACE_BOX (lface) = value; | |
3809 | } | |
3810 | else if (EQ (attr, QCinverse_video) | |
3811 | || EQ (attr, QCreverse_video)) | |
3812 | { | |
3813 | if (!UNSPECIFIEDP (value)) | |
3814 | { | |
3815 | CHECK_SYMBOL (value, 3); | |
3816 | if (!EQ (value, Qt) && !NILP (value)) | |
3817 | signal_error ("Invalid inverse-video face attribute value", value); | |
3818 | } | |
3819 | old_value = LFACE_INVERSE (lface); | |
3820 | LFACE_INVERSE (lface) = value; | |
3821 | } | |
3822 | else if (EQ (attr, QCforeground)) | |
3823 | { | |
ef917393 | 3824 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3825 | { |
3826 | /* Don't check for valid color names here because it depends | |
3827 | on the frame (display) whether the color will be valid | |
3828 | when the face is realized. */ | |
3829 | CHECK_STRING (value, 3); | |
3830 | if (XSTRING (value)->size == 0) | |
3831 | signal_error ("Empty foreground color value", value); | |
3832 | } | |
3833 | old_value = LFACE_FOREGROUND (lface); | |
3834 | LFACE_FOREGROUND (lface) = value; | |
3835 | } | |
3836 | else if (EQ (attr, QCbackground)) | |
3837 | { | |
ef917393 | 3838 | if (!UNSPECIFIEDP (value)) |
82641697 GM |
3839 | { |
3840 | /* Don't check for valid color names here because it depends | |
3841 | on the frame (display) whether the color will be valid | |
3842 | when the face is realized. */ | |
3843 | CHECK_STRING (value, 3); | |
3844 | if (XSTRING (value)->size == 0) | |
3845 | signal_error ("Empty background color value", value); | |
3846 | } | |
3847 | old_value = LFACE_BACKGROUND (lface); | |
3848 | LFACE_BACKGROUND (lface) = value; | |
3849 | } | |
3850 | else if (EQ (attr, QCstipple)) | |
3851 | { | |
3852 | #ifdef HAVE_X_WINDOWS | |
3853 | if (!UNSPECIFIEDP (value) | |
3854 | && !NILP (value) | |
fef04523 | 3855 | && NILP (Fbitmap_spec_p (value))) |
82641697 GM |
3856 | signal_error ("Invalid stipple attribute", value); |
3857 | old_value = LFACE_STIPPLE (lface); | |
3858 | LFACE_STIPPLE (lface) = value; | |
3859 | #endif /* HAVE_X_WINDOWS */ | |
3860 | } | |
3861 | else if (EQ (attr, QCwidth)) | |
3862 | { | |
3863 | if (!UNSPECIFIEDP (value)) | |
3864 | { | |
3865 | CHECK_SYMBOL (value, 3); | |
3866 | if (face_numeric_swidth (value) < 0) | |
3867 | signal_error ("Invalid face width", value); | |
3868 | } | |
3869 | old_value = LFACE_SWIDTH (lface); | |
3870 | LFACE_SWIDTH (lface) = value; | |
3871 | font_related_attr_p = 1; | |
3872 | } | |
3873 | else if (EQ (attr, QCfont)) | |
3874 | { | |
c3cee013 | 3875 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
3876 | /* Set font-related attributes of the Lisp face from an |
3877 | XLFD font name. */ | |
3878 | struct frame *f; | |
39506348 | 3879 | Lisp_Object tmp; |
82641697 GM |
3880 | |
3881 | CHECK_STRING (value, 3); | |
3882 | if (EQ (frame, Qt)) | |
c0617987 | 3883 | f = SELECTED_FRAME (); |
82641697 GM |
3884 | else |
3885 | f = check_x_frame (frame); | |
178c5d9c | 3886 | |
39506348 KH |
3887 | /* VALUE may be a fontset name or an alias of fontset. In such |
3888 | a case, use the base fontset name. */ | |
3889 | tmp = Fquery_fontset (value, Qnil); | |
3890 | if (!NILP (tmp)) | |
3891 | value = tmp; | |
3892 | ||
3893 | if (!set_lface_from_font_name (f, lface, value, 1, 1)) | |
3894 | signal_error ("Invalid font or fontset name", value); | |
3895 | ||
3896 | font_attr_p = 1; | |
c3cee013 | 3897 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 3898 | } |
2c20458f MB |
3899 | else if (EQ (attr, QCinherit)) |
3900 | { | |
3901 | Lisp_Object tail; | |
3902 | if (SYMBOLP (value)) | |
3903 | tail = Qnil; | |
3904 | else | |
3905 | for (tail = value; CONSP (tail); tail = XCDR (tail)) | |
3906 | if (!SYMBOLP (XCAR (tail))) | |
3907 | break; | |
3908 | if (NILP (tail)) | |
3909 | LFACE_INHERIT (lface) = value; | |
3910 | else | |
6288c62f | 3911 | signal_error ("Invalid face inheritance", value); |
2c20458f | 3912 | } |
82641697 GM |
3913 | else if (EQ (attr, QCbold)) |
3914 | { | |
3915 | old_value = LFACE_WEIGHT (lface); | |
3916 | LFACE_WEIGHT (lface) = NILP (value) ? Qnormal : Qbold; | |
3917 | font_related_attr_p = 1; | |
3918 | } | |
3919 | else if (EQ (attr, QCitalic)) | |
3920 | { | |
3921 | old_value = LFACE_SLANT (lface); | |
3922 | LFACE_SLANT (lface) = NILP (value) ? Qnormal : Qitalic; | |
3923 | font_related_attr_p = 1; | |
3924 | } | |
3925 | else | |
3926 | signal_error ("Invalid face attribute name", attr); | |
3927 | ||
39506348 KH |
3928 | if (font_related_attr_p |
3929 | && !UNSPECIFIEDP (value)) | |
3930 | /* If a font-related attribute other than QCfont is specified, the | |
3931 | original `font' attribute nor that of default face is useless | |
3932 | to determine a new font. Thus, we set it to nil so that font | |
3933 | selection mechanism doesn't use it. */ | |
3934 | LFACE_FONT (lface) = Qnil; | |
3935 | ||
82641697 GM |
3936 | /* Changing a named face means that all realized faces depending on |
3937 | that face are invalid. Since we cannot tell which realized faces | |
3938 | depend on the face, make sure they are all removed. This is done | |
3939 | by incrementing face_change_count. The next call to | |
3940 | init_iterator will then free realized faces. */ | |
3941 | if (!EQ (frame, Qt) | |
3942 | && (EQ (attr, QCfont) | |
3943 | || NILP (Fequal (old_value, value)))) | |
3944 | { | |
3945 | ++face_change_count; | |
3946 | ++windows_or_buffers_changed; | |
3947 | } | |
3948 | ||
c3cee013 | 3949 | #ifdef HAVE_WINDOW_SYSTEM |
8bd201d6 GM |
3950 | |
3951 | if (!EQ (frame, Qt) | |
3952 | && !UNSPECIFIEDP (value) | |
82641697 | 3953 | && NILP (Fequal (old_value, value))) |
8bd201d6 GM |
3954 | { |
3955 | Lisp_Object param; | |
3956 | ||
3957 | param = Qnil; | |
178c5d9c | 3958 | |
8bd201d6 GM |
3959 | if (EQ (face, Qdefault)) |
3960 | { | |
3961 | /* Changed font-related attributes of the `default' face are | |
3962 | reflected in changed `font' frame parameters. */ | |
39506348 | 3963 | if ((font_related_attr_p || font_attr_p) |
8bd201d6 GM |
3964 | && lface_fully_specified_p (XVECTOR (lface)->contents)) |
3965 | set_font_frame_param (frame, lface); | |
3966 | else if (EQ (attr, QCforeground)) | |
3967 | param = Qforeground_color; | |
3968 | else if (EQ (attr, QCbackground)) | |
3969 | param = Qbackground_color; | |
3970 | } | |
c3cee013 | 3971 | #ifndef WINDOWSNT |
8bd201d6 GM |
3972 | else if (EQ (face, Qscroll_bar)) |
3973 | { | |
3974 | /* Changing the colors of `scroll-bar' sets frame parameters | |
3975 | `scroll-bar-foreground' and `scroll-bar-background'. */ | |
3976 | if (EQ (attr, QCforeground)) | |
3977 | param = Qscroll_bar_foreground; | |
3978 | else if (EQ (attr, QCbackground)) | |
3979 | param = Qscroll_bar_background; | |
3980 | } | |
d12d0a9b | 3981 | #endif /* not WINDOWSNT */ |
8bd201d6 GM |
3982 | else if (EQ (face, Qborder)) |
3983 | { | |
3984 | /* Changing background color of `border' sets frame parameter | |
3985 | `border-color'. */ | |
3986 | if (EQ (attr, QCbackground)) | |
3987 | param = Qborder_color; | |
3988 | } | |
3989 | else if (EQ (face, Qcursor)) | |
3990 | { | |
3991 | /* Changing background color of `cursor' sets frame parameter | |
3992 | `cursor-color'. */ | |
3993 | if (EQ (attr, QCbackground)) | |
3994 | param = Qcursor_color; | |
3995 | } | |
3996 | else if (EQ (face, Qmouse)) | |
3997 | { | |
3998 | /* Changing background color of `mouse' sets frame parameter | |
3999 | `mouse-color'. */ | |
4000 | if (EQ (attr, QCbackground)) | |
4001 | param = Qmouse_color; | |
4002 | } | |
4003 | ||
39506348 | 4004 | if (!NILP (param)) |
dbc968b8 GM |
4005 | { |
4006 | Lisp_Object cons; | |
4007 | cons = XCAR (Vparam_value_alist); | |
4008 | XCAR (cons) = param; | |
4009 | XCDR (cons) = value; | |
4010 | Fmodify_frame_parameters (frame, Vparam_value_alist); | |
4011 | } | |
8bd201d6 | 4012 | } |
82641697 | 4013 | |
c3cee013 | 4014 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 4015 | |
82641697 GM |
4016 | return face; |
4017 | } | |
4018 | ||
4019 | ||
c3cee013 | 4020 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 4021 | |
39506348 KH |
4022 | /* Set the `font' frame parameter of FRAME determined from `default' |
4023 | face attributes LFACE. If a face or fontset name is explicitely | |
4024 | specfied in LFACE, use it as is. Otherwise, determine a font name | |
4025 | from the other font-related atrributes of LFACE. In that case, if | |
4026 | there's no matching font, signals an error. */ | |
82641697 GM |
4027 | |
4028 | static void | |
4029 | set_font_frame_param (frame, lface) | |
4030 | Lisp_Object frame, lface; | |
4031 | { | |
4032 | struct frame *f = XFRAME (frame); | |
39506348 | 4033 | Lisp_Object font_name; |
82641697 GM |
4034 | char *font; |
4035 | ||
39506348 KH |
4036 | if (STRINGP (LFACE_FONT (lface))) |
4037 | font_name = LFACE_FONT (lface); | |
82641697 GM |
4038 | else |
4039 | { | |
39506348 KH |
4040 | /* Choose a font name that reflects LFACE's attributes and has |
4041 | the registry and encoding pattern specified in the default | |
4042 | fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */ | |
4043 | font = choose_face_font (f, XVECTOR (lface)->contents, -1, 0); | |
4044 | if (!font) | |
4045 | error ("No font matches the specified attribute"); | |
4046 | font_name = build_string (font); | |
4047 | xfree (font); | |
82641697 | 4048 | } |
5226a931 GM |
4049 | |
4050 | Fmodify_frame_parameters (frame, Fcons (Fcons (Qfont, font_name), Qnil)); | |
82641697 GM |
4051 | } |
4052 | ||
4053 | ||
8bd201d6 GM |
4054 | /* Update the corresponding face when frame parameter PARAM on frame F |
4055 | has been assigned the value NEW_VALUE. */ | |
4056 | ||
4057 | void | |
4058 | update_face_from_frame_parameter (f, param, new_value) | |
4059 | struct frame *f; | |
4060 | Lisp_Object param, new_value; | |
4061 | { | |
4062 | Lisp_Object lface; | |
4063 | ||
4064 | /* If there are no faces yet, give up. This is the case when called | |
4065 | from Fx_create_frame, and we do the necessary things later in | |
92610620 | 4066 | face-set-after-frame-defaults. */ |
8bd201d6 GM |
4067 | if (NILP (f->face_alist)) |
4068 | return; | |
178c5d9c | 4069 | |
8bd201d6 GM |
4070 | if (EQ (param, Qforeground_color)) |
4071 | { | |
4072 | lface = lface_from_face_name (f, Qdefault, 1); | |
4073 | LFACE_FOREGROUND (lface) = (STRINGP (new_value) | |
4074 | ? new_value : Qunspecified); | |
4075 | realize_basic_faces (f); | |
4076 | } | |
4077 | else if (EQ (param, Qbackground_color)) | |
4078 | { | |
92610620 GM |
4079 | Lisp_Object frame; |
4080 | ||
4081 | /* Changing the background color might change the background | |
4082 | mode, so that we have to load new defface specs. Call | |
4083 | frame-update-face-colors to do that. */ | |
4084 | XSETFRAME (frame, f); | |
4085 | call1 (Qframe_update_face_colors, frame); | |
178c5d9c | 4086 | |
8bd201d6 GM |
4087 | lface = lface_from_face_name (f, Qdefault, 1); |
4088 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4089 | ? new_value : Qunspecified); | |
4090 | realize_basic_faces (f); | |
4091 | } | |
4092 | if (EQ (param, Qborder_color)) | |
4093 | { | |
4094 | lface = lface_from_face_name (f, Qborder, 1); | |
4095 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4096 | ? new_value : Qunspecified); | |
4097 | } | |
4098 | else if (EQ (param, Qcursor_color)) | |
4099 | { | |
4100 | lface = lface_from_face_name (f, Qcursor, 1); | |
4101 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4102 | ? new_value : Qunspecified); | |
4103 | } | |
4104 | else if (EQ (param, Qmouse_color)) | |
4105 | { | |
4106 | lface = lface_from_face_name (f, Qmouse, 1); | |
4107 | LFACE_BACKGROUND (lface) = (STRINGP (new_value) | |
4108 | ? new_value : Qunspecified); | |
4109 | } | |
4110 | } | |
4111 | ||
4112 | ||
82641697 GM |
4113 | /* Get the value of X resource RESOURCE, class CLASS for the display |
4114 | of frame FRAME. This is here because ordinary `x-get-resource' | |
4115 | doesn't take a frame argument. */ | |
4116 | ||
4117 | DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource, | |
4118 | Sinternal_face_x_get_resource, 3, 3, 0, "") | |
4119 | (resource, class, frame) | |
4120 | Lisp_Object resource, class, frame; | |
4121 | { | |
c3cee013 JR |
4122 | Lisp_Object value = Qnil; |
4123 | #ifndef WINDOWSNT | |
82641697 GM |
4124 | CHECK_STRING (resource, 0); |
4125 | CHECK_STRING (class, 1); | |
4126 | CHECK_LIVE_FRAME (frame, 2); | |
4127 | BLOCK_INPUT; | |
4128 | value = display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame)), | |
4129 | resource, class, Qnil, Qnil); | |
4130 | UNBLOCK_INPUT; | |
d12d0a9b | 4131 | #endif /* not WINDOWSNT */ |
82641697 GM |
4132 | return value; |
4133 | } | |
4134 | ||
4135 | ||
4136 | /* Return resource string VALUE as a boolean value, i.e. nil, or t. | |
4137 | If VALUE is "on" or "true", return t. If VALUE is "off" or | |
4138 | "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an | |
4139 | error; if SIGNAL_P is zero, return 0. */ | |
178c5d9c | 4140 | |
82641697 GM |
4141 | static Lisp_Object |
4142 | face_boolean_x_resource_value (value, signal_p) | |
4143 | Lisp_Object value; | |
4144 | int signal_p; | |
4145 | { | |
4146 | Lisp_Object result = make_number (0); | |
4147 | ||
4148 | xassert (STRINGP (value)); | |
178c5d9c | 4149 | |
82641697 GM |
4150 | if (xstricmp (XSTRING (value)->data, "on") == 0 |
4151 | || xstricmp (XSTRING (value)->data, "true") == 0) | |
4152 | result = Qt; | |
4153 | else if (xstricmp (XSTRING (value)->data, "off") == 0 | |
4154 | || xstricmp (XSTRING (value)->data, "false") == 0) | |
4155 | result = Qnil; | |
4156 | else if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4157 | result = Qunspecified; | |
4158 | else if (signal_p) | |
4159 | signal_error ("Invalid face attribute value from X resource", value); | |
4160 | ||
4161 | return result; | |
4162 | } | |
4163 | ||
4164 | ||
4165 | DEFUN ("internal-set-lisp-face-attribute-from-resource", | |
4166 | Finternal_set_lisp_face_attribute_from_resource, | |
4167 | Sinternal_set_lisp_face_attribute_from_resource, | |
4168 | 3, 4, 0, "") | |
4169 | (face, attr, value, frame) | |
4170 | Lisp_Object face, attr, value, frame; | |
4171 | { | |
4172 | CHECK_SYMBOL (face, 0); | |
4173 | CHECK_SYMBOL (attr, 1); | |
4174 | CHECK_STRING (value, 2); | |
4175 | ||
4176 | if (xstricmp (XSTRING (value)->data, "unspecified") == 0) | |
4177 | value = Qunspecified; | |
4178 | else if (EQ (attr, QCheight)) | |
4179 | { | |
4180 | value = Fstring_to_number (value, make_number (10)); | |
4181 | if (XINT (value) <= 0) | |
4182 | signal_error ("Invalid face height from X resource", value); | |
4183 | } | |
4184 | else if (EQ (attr, QCbold) || EQ (attr, QCitalic)) | |
4185 | value = face_boolean_x_resource_value (value, 1); | |
4186 | else if (EQ (attr, QCweight) || EQ (attr, QCslant) || EQ (attr, QCwidth)) | |
4187 | value = intern (XSTRING (value)->data); | |
4188 | else if (EQ (attr, QCreverse_video) || EQ (attr, QCinverse_video)) | |
4189 | value = face_boolean_x_resource_value (value, 1); | |
4190 | else if (EQ (attr, QCunderline) | |
4191 | || EQ (attr, QCoverline) | |
4192 | || EQ (attr, QCstrike_through) | |
4193 | || EQ (attr, QCbox)) | |
4194 | { | |
4195 | Lisp_Object boolean_value; | |
4196 | ||
4197 | /* If the result of face_boolean_x_resource_value is t or nil, | |
4198 | VALUE does NOT specify a color. */ | |
4199 | boolean_value = face_boolean_x_resource_value (value, 0); | |
4200 | if (SYMBOLP (boolean_value)) | |
4201 | value = boolean_value; | |
4202 | } | |
4203 | ||
4204 | return Finternal_set_lisp_face_attribute (face, attr, value, frame); | |
4205 | } | |
4206 | ||
c3cee013 | 4207 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 4208 | |
c7ae3284 | 4209 | \f |
c3cee013 | 4210 | #ifdef HAVE_X_WINDOWS |
c7ae3284 GM |
4211 | /*********************************************************************** |
4212 | Menu face | |
4213 | ***********************************************************************/ | |
4214 | ||
4215 | #ifdef USE_X_TOOLKIT | |
4216 | ||
f7cc6849 DL |
4217 | #include "../lwlib/lwlib-utils.h" |
4218 | ||
c7ae3284 GM |
4219 | /* Structure used to pass X resources to functions called via |
4220 | XtApplyToWidgets. */ | |
4221 | ||
4222 | struct x_resources | |
4223 | { | |
4224 | Arg *av; | |
4225 | int ac; | |
4226 | }; | |
4227 | ||
4228 | ||
4229 | #ifdef USE_MOTIF | |
4230 | ||
4231 | static void xm_apply_resources P_ ((Widget, XtPointer)); | |
4232 | static void xm_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
4233 | ||
4234 | ||
4235 | /* Set widget W's X resources from P which points to an x_resources | |
4236 | structure. If W is a cascade button, apply resources to W's | |
4237 | submenu. */ | |
4238 | ||
4239 | static void | |
4240 | xm_apply_resources (w, p) | |
4241 | Widget w; | |
4242 | XtPointer p; | |
4243 | { | |
4244 | Widget submenu = 0; | |
4245 | struct x_resources *res = (struct x_resources *) p; | |
178c5d9c | 4246 | |
c7ae3284 GM |
4247 | XtSetValues (w, res->av, res->ac); |
4248 | XtVaGetValues (w, XmNsubMenuId, &submenu, NULL); | |
4249 | if (submenu) | |
4250 | { | |
4251 | XtSetValues (submenu, res->av, res->ac); | |
4252 | XtApplyToWidgets (submenu, xm_apply_resources, p); | |
4253 | } | |
4254 | } | |
4255 | ||
4256 | ||
4257 | /* Set X resources of menu-widget WIDGET on frame F from face `menu'. | |
4258 | This is the LessTif/Motif version. As of LessTif 0.88 it has the | |
4259 | following problems: | |
4260 | ||
4261 | 1. Setting the XmNfontList resource leads to an infinite loop | |
4262 | somewhere in LessTif. */ | |
4263 | ||
4264 | static void | |
4265 | xm_set_menu_resources_from_menu_face (f, widget) | |
4266 | struct frame *f; | |
4267 | Widget widget; | |
4268 | { | |
4269 | struct face *face; | |
4270 | Lisp_Object lface; | |
4271 | Arg av[3]; | |
4272 | int ac = 0; | |
4273 | XmFontList fl = 0; | |
4274 | ||
4275 | lface = lface_from_face_name (f, Qmenu, 1); | |
4276 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4277 | ||
4278 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
4279 | { | |
4280 | XtSetArg (av[ac], XmNforeground, face->foreground); | |
4281 | ++ac; | |
4282 | } | |
4283 | ||
4284 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
4285 | { | |
4286 | XtSetArg (av[ac], XmNbackground, face->background); | |
4287 | ++ac; | |
4288 | } | |
4289 | ||
4290 | /* If any font-related attribute of `menu' is set, set the font. */ | |
4291 | if (face->font | |
4292 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4293 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4294 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4295 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4296 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4297 | { | |
4298 | #if 0 /* Setting the font leads to an infinite loop somewhere | |
4299 | in LessTif during geometry computation. */ | |
4300 | XmFontListEntry fe; | |
4301 | fe = XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT, face->font); | |
4302 | fl = XmFontListAppendEntry (NULL, fe); | |
4303 | XtSetArg (av[ac], XmNfontList, fl); | |
4304 | ++ac; | |
4305 | #endif | |
4306 | } | |
4307 | ||
4308 | xassert (ac <= sizeof av / sizeof *av); | |
178c5d9c | 4309 | |
c7ae3284 GM |
4310 | if (ac) |
4311 | { | |
4312 | struct x_resources res; | |
178c5d9c | 4313 | |
c7ae3284 GM |
4314 | XtSetValues (widget, av, ac); |
4315 | res.av = av, res.ac = ac; | |
4316 | XtApplyToWidgets (widget, xm_apply_resources, &res); | |
4317 | if (fl) | |
4318 | XmFontListFree (fl); | |
4319 | } | |
4320 | } | |
4321 | ||
c7ae3284 GM |
4322 | #endif /* USE_MOTIF */ |
4323 | ||
4324 | #ifdef USE_LUCID | |
4325 | ||
4326 | static void xl_apply_resources P_ ((Widget, XtPointer)); | |
4327 | static void xl_set_menu_resources_from_menu_face P_ ((struct frame *, Widget)); | |
4328 | ||
4329 | ||
4330 | /* Set widget W's resources from P which points to an x_resources | |
4331 | structure. */ | |
4332 | ||
4333 | static void | |
4334 | xl_apply_resources (widget, p) | |
4335 | Widget widget; | |
4336 | XtPointer p; | |
4337 | { | |
4338 | struct x_resources *res = (struct x_resources *) p; | |
4339 | XtSetValues (widget, res->av, res->ac); | |
4340 | } | |
4341 | ||
4342 | ||
4343 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. | |
4344 | This is the Lucid version. */ | |
4345 | ||
4346 | static void | |
4347 | xl_set_menu_resources_from_menu_face (f, widget) | |
4348 | struct frame *f; | |
4349 | Widget widget; | |
4350 | { | |
4351 | struct face *face; | |
4352 | Lisp_Object lface; | |
4353 | Arg av[3]; | |
4354 | int ac = 0; | |
4355 | ||
4356 | lface = lface_from_face_name (f, Qmenu, 1); | |
4357 | face = FACE_FROM_ID (f, MENU_FACE_ID); | |
4358 | ||
4359 | if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface))) | |
4360 | { | |
4361 | XtSetArg (av[ac], XtNforeground, face->foreground); | |
4362 | ++ac; | |
4363 | } | |
4364 | ||
4365 | if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface))) | |
4366 | { | |
4367 | XtSetArg (av[ac], XtNbackground, face->background); | |
4368 | ++ac; | |
4369 | } | |
4370 | ||
4371 | if (face->font | |
4372 | && (!UNSPECIFIEDP (LFACE_FAMILY (lface)) | |
4373 | || !UNSPECIFIEDP (LFACE_SWIDTH (lface)) | |
4374 | || !UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4375 | || !UNSPECIFIEDP (LFACE_SLANT (lface)) | |
4376 | || !UNSPECIFIEDP (LFACE_HEIGHT (lface)))) | |
4377 | { | |
4378 | XtSetArg (av[ac], XtNfont, face->font); | |
4379 | ++ac; | |
4380 | } | |
4381 | ||
4382 | if (ac) | |
4383 | { | |
4384 | struct x_resources res; | |
178c5d9c | 4385 | |
c7ae3284 GM |
4386 | XtSetValues (widget, av, ac); |
4387 | ||
4388 | /* We must do children here in case we're handling a pop-up menu | |
4389 | in which case WIDGET is a popup shell. XtApplyToWidgets | |
4390 | is a function from lwlib. */ | |
4391 | res.av = av, res.ac = ac; | |
4392 | XtApplyToWidgets (widget, xl_apply_resources, &res); | |
4393 | } | |
4394 | } | |
4395 | ||
4396 | #endif /* USE_LUCID */ | |
4397 | ||
4398 | ||
4399 | /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */ | |
4400 | ||
4401 | void | |
4402 | x_set_menu_resources_from_menu_face (f, widget) | |
4403 | struct frame *f; | |
4404 | Widget widget; | |
4405 | { | |
15daa944 GM |
4406 | /* Realized faces may have been removed on frame F, e.g. because of |
4407 | face attribute changes. Recompute them, if necessary, since we | |
4408 | will need the `menu' face. */ | |
4409 | if (f->face_cache->used == 0) | |
4410 | recompute_basic_faces (f); | |
178c5d9c | 4411 | |
c7ae3284 GM |
4412 | #ifdef USE_LUCID |
4413 | xl_set_menu_resources_from_menu_face (f, widget); | |
4414 | #endif | |
4415 | #ifdef USE_MOTIF | |
4416 | xm_set_menu_resources_from_menu_face (f, widget); | |
4417 | #endif | |
4418 | } | |
4419 | ||
4420 | #endif /* USE_X_TOOLKIT */ | |
4421 | ||
82641697 GM |
4422 | #endif /* HAVE_X_WINDOWS */ |
4423 | ||
4424 | ||
4425 | ||
4426 | DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute, | |
4427 | Sinternal_get_lisp_face_attribute, | |
4428 | 2, 3, 0, | |
4429 | "Return face attribute KEYWORD of face SYMBOL.\n\ | |
4430 | If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\ | |
4431 | face attribute name, signal an error.\n\ | |
4432 | If the optional argument FRAME is given, report on face FACE in that\n\ | |
4433 | frame. If FRAME is t, report on the defaults for face FACE (for new\n\ | |
4434 | frames). If FRAME is omitted or nil, use the selected frame.") | |
4435 | (symbol, keyword, frame) | |
4436 | Lisp_Object symbol, keyword, frame; | |
4437 | { | |
4438 | Lisp_Object lface, value = Qnil; | |
178c5d9c | 4439 | |
82641697 GM |
4440 | CHECK_SYMBOL (symbol, 0); |
4441 | CHECK_SYMBOL (keyword, 1); | |
4442 | ||
4443 | if (EQ (frame, Qt)) | |
4444 | lface = lface_from_face_name (NULL, symbol, 1); | |
4445 | else | |
4446 | { | |
4447 | if (NILP (frame)) | |
c0617987 | 4448 | frame = selected_frame; |
82641697 GM |
4449 | CHECK_LIVE_FRAME (frame, 2); |
4450 | lface = lface_from_face_name (XFRAME (frame), symbol, 1); | |
4451 | } | |
4452 | ||
4453 | if (EQ (keyword, QCfamily)) | |
4454 | value = LFACE_FAMILY (lface); | |
4455 | else if (EQ (keyword, QCheight)) | |
4456 | value = LFACE_HEIGHT (lface); | |
4457 | else if (EQ (keyword, QCweight)) | |
4458 | value = LFACE_WEIGHT (lface); | |
4459 | else if (EQ (keyword, QCslant)) | |
4460 | value = LFACE_SLANT (lface); | |
4461 | else if (EQ (keyword, QCunderline)) | |
4462 | value = LFACE_UNDERLINE (lface); | |
4463 | else if (EQ (keyword, QCoverline)) | |
4464 | value = LFACE_OVERLINE (lface); | |
4465 | else if (EQ (keyword, QCstrike_through)) | |
4466 | value = LFACE_STRIKE_THROUGH (lface); | |
4467 | else if (EQ (keyword, QCbox)) | |
4468 | value = LFACE_BOX (lface); | |
4469 | else if (EQ (keyword, QCinverse_video) | |
4470 | || EQ (keyword, QCreverse_video)) | |
4471 | value = LFACE_INVERSE (lface); | |
4472 | else if (EQ (keyword, QCforeground)) | |
4473 | value = LFACE_FOREGROUND (lface); | |
4474 | else if (EQ (keyword, QCbackground)) | |
4475 | value = LFACE_BACKGROUND (lface); | |
4476 | else if (EQ (keyword, QCstipple)) | |
4477 | value = LFACE_STIPPLE (lface); | |
4478 | else if (EQ (keyword, QCwidth)) | |
4479 | value = LFACE_SWIDTH (lface); | |
2c20458f MB |
4480 | else if (EQ (keyword, QCinherit)) |
4481 | value = LFACE_INHERIT (lface); | |
39506348 KH |
4482 | else if (EQ (keyword, QCfont)) |
4483 | value = LFACE_FONT (lface); | |
82641697 GM |
4484 | else |
4485 | signal_error ("Invalid face attribute name", keyword); | |
4486 | ||
4487 | return value; | |
4488 | } | |
4489 | ||
4490 | ||
4491 | DEFUN ("internal-lisp-face-attribute-values", | |
4492 | Finternal_lisp_face_attribute_values, | |
4493 | Sinternal_lisp_face_attribute_values, 1, 1, 0, | |
4494 | "Return a list of valid discrete values for face attribute ATTR.\n\ | |
4495 | Value is nil if ATTR doesn't have a discrete set of valid values.") | |
4496 | (attr) | |
4497 | Lisp_Object attr; | |
4498 | { | |
4499 | Lisp_Object result = Qnil; | |
178c5d9c | 4500 | |
82641697 | 4501 | CHECK_SYMBOL (attr, 0); |
178c5d9c | 4502 | |
82641697 GM |
4503 | if (EQ (attr, QCweight) |
4504 | || EQ (attr, QCslant) | |
4505 | || EQ (attr, QCwidth)) | |
4506 | { | |
4507 | /* Extract permissible symbols from tables. */ | |
4508 | struct table_entry *table; | |
4509 | int i, dim; | |
178c5d9c | 4510 | |
82641697 GM |
4511 | if (EQ (attr, QCweight)) |
4512 | table = weight_table, dim = DIM (weight_table); | |
4513 | else if (EQ (attr, QCslant)) | |
4514 | table = slant_table, dim = DIM (slant_table); | |
4515 | else | |
4516 | table = swidth_table, dim = DIM (swidth_table); | |
4517 | ||
4518 | for (i = 0; i < dim; ++i) | |
4519 | { | |
4520 | Lisp_Object symbol = *table[i].symbol; | |
4521 | Lisp_Object tail = result; | |
4522 | ||
4523 | while (!NILP (tail) | |
4524 | && !EQ (XCAR (tail), symbol)) | |
4525 | tail = XCDR (tail); | |
4526 | ||
4527 | if (NILP (tail)) | |
4528 | result = Fcons (symbol, result); | |
4529 | } | |
4530 | } | |
4531 | else if (EQ (attr, QCunderline)) | |
4532 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4533 | else if (EQ (attr, QCoverline)) | |
4534 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4535 | else if (EQ (attr, QCstrike_through)) | |
4536 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4537 | else if (EQ (attr, QCinverse_video) || EQ (attr, QCreverse_video)) | |
4538 | result = Fcons (Qt, Fcons (Qnil, Qnil)); | |
4539 | ||
4540 | return result; | |
4541 | } | |
178c5d9c | 4542 | |
82641697 GM |
4543 | |
4544 | DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face, | |
178c5d9c | 4545 | Sinternal_merge_in_global_face, 2, 2, 0, |
460dc922 | 4546 | "Add attributes from frame-default definition of FACE to FACE on FRAME.\n\ |
aad40737 | 4547 | Default face attributes override any local face attributes.") |
82641697 GM |
4548 | (face, frame) |
4549 | Lisp_Object face, frame; | |
4550 | { | |
aad40737 MB |
4551 | int i; |
4552 | Lisp_Object global_lface, local_lface, *gvec, *lvec; | |
4553 | ||
82641697 GM |
4554 | CHECK_LIVE_FRAME (frame, 1); |
4555 | global_lface = lface_from_face_name (NULL, face, 1); | |
4556 | local_lface = lface_from_face_name (XFRAME (frame), face, 0); | |
4557 | if (NILP (local_lface)) | |
4558 | local_lface = Finternal_make_lisp_face (face, frame); | |
aad40737 | 4559 | |
cec33c90 SM |
4560 | /* Make every specified global attribute override the local one. |
4561 | BEWARE!! This is only used from `face-set-after-frame-default' where | |
4562 | the local frame is defined from default specs in `face-defface-spec' | |
4563 | and those should be overridden by global settings. Hence the strange | |
4564 | "global before local" priority. */ | |
aad40737 MB |
4565 | lvec = XVECTOR (local_lface)->contents; |
4566 | gvec = XVECTOR (global_lface)->contents; | |
4567 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4568 | if (! UNSPECIFIEDP (gvec[i])) | |
4569 | lvec[i] = gvec[i]; | |
334a2e2a GM |
4570 | |
4571 | return Qnil; | |
82641697 GM |
4572 | } |
4573 | ||
4574 | ||
4575 | /* The following function is implemented for compatibility with 20.2. | |
4576 | The function is used in x-resolve-fonts when it is asked to | |
4577 | return fonts with the same size as the font of a face. This is | |
4578 | done in fontset.el. */ | |
4579 | ||
178c5d9c | 4580 | DEFUN ("face-font", Fface_font, Sface_font, 1, 2, 0, |
82641697 GM |
4581 | "Return the font name of face FACE, or nil if it is unspecified.\n\ |
4582 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4583 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4584 | The font default for a face is either nil, or a list\n\ | |
4585 | of the form (bold), (italic) or (bold italic).\n\ | |
4586 | If FRAME is omitted or nil, use the selected frame.") | |
4587 | (face, frame) | |
4588 | Lisp_Object face, frame; | |
4589 | { | |
4590 | if (EQ (frame, Qt)) | |
4591 | { | |
4592 | Lisp_Object result = Qnil; | |
4593 | Lisp_Object lface = lface_from_face_name (NULL, face, 1); | |
4594 | ||
4595 | if (!UNSPECIFIEDP (LFACE_WEIGHT (lface)) | |
4596 | && !EQ (LFACE_WEIGHT (lface), Qnormal)) | |
4597 | result = Fcons (Qbold, result); | |
178c5d9c | 4598 | |
82641697 GM |
4599 | if (!NILP (LFACE_SLANT (lface)) |
4600 | && !EQ (LFACE_SLANT (lface), Qnormal)) | |
4601 | result = Fcons (Qitalic, result); | |
178c5d9c | 4602 | |
82641697 GM |
4603 | return result; |
4604 | } | |
4605 | else | |
4606 | { | |
4607 | struct frame *f = frame_or_selected_frame (frame, 1); | |
39506348 | 4608 | int face_id = lookup_named_face (f, face, 0); |
82641697 GM |
4609 | struct face *face = FACE_FROM_ID (f, face_id); |
4610 | return build_string (face->font_name); | |
4611 | } | |
4612 | } | |
4613 | ||
4614 | ||
4615 | /* Compare face vectors V1 and V2 for equality. Value is non-zero if | |
4616 | all attributes are `equal'. Tries to be fast because this function | |
4617 | is called quite often. */ | |
4618 | ||
4619 | static INLINE int | |
4620 | lface_equal_p (v1, v2) | |
4621 | Lisp_Object *v1, *v2; | |
4622 | { | |
4623 | int i, equal_p = 1; | |
4624 | ||
4625 | for (i = 1; i < LFACE_VECTOR_SIZE && equal_p; ++i) | |
4626 | { | |
4627 | Lisp_Object a = v1[i]; | |
4628 | Lisp_Object b = v2[i]; | |
4629 | ||
4630 | /* Type can differ, e.g. when one attribute is unspecified, i.e. nil, | |
4631 | and the other is specified. */ | |
4632 | equal_p = XTYPE (a) == XTYPE (b); | |
4633 | if (!equal_p) | |
4634 | break; | |
4635 | ||
4636 | if (!EQ (a, b)) | |
4637 | { | |
4638 | switch (XTYPE (a)) | |
4639 | { | |
4640 | case Lisp_String: | |
ae4b4ba5 GM |
4641 | equal_p = ((STRING_BYTES (XSTRING (a)) |
4642 | == STRING_BYTES (XSTRING (b))) | |
82641697 | 4643 | && bcmp (XSTRING (a)->data, XSTRING (b)->data, |
ae4b4ba5 | 4644 | STRING_BYTES (XSTRING (a))) == 0); |
82641697 | 4645 | break; |
178c5d9c | 4646 | |
82641697 GM |
4647 | case Lisp_Int: |
4648 | case Lisp_Symbol: | |
4649 | equal_p = 0; | |
4650 | break; | |
178c5d9c | 4651 | |
82641697 GM |
4652 | default: |
4653 | equal_p = !NILP (Fequal (a, b)); | |
4654 | break; | |
4655 | } | |
4656 | } | |
4657 | } | |
178c5d9c | 4658 | |
82641697 GM |
4659 | return equal_p; |
4660 | } | |
4661 | ||
4662 | ||
4663 | DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p, | |
4664 | Sinternal_lisp_face_equal_p, 2, 3, 0, | |
4665 | "True if FACE1 and FACE2 are equal.\n\ | |
4666 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4667 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4668 | If FRAME is omitted or nil, use the selected frame.") | |
4669 | (face1, face2, frame) | |
4670 | Lisp_Object face1, face2, frame; | |
4671 | { | |
4672 | int equal_p; | |
4673 | struct frame *f; | |
4674 | Lisp_Object lface1, lface2; | |
178c5d9c | 4675 | |
82641697 GM |
4676 | if (EQ (frame, Qt)) |
4677 | f = NULL; | |
4678 | else | |
4679 | /* Don't use check_x_frame here because this function is called | |
4680 | before X frames exist. At that time, if FRAME is nil, | |
4681 | selected_frame will be used which is the frame dumped with | |
4682 | Emacs. That frame is not an X frame. */ | |
4683 | f = frame_or_selected_frame (frame, 2); | |
4684 | ||
4685 | lface1 = lface_from_face_name (NULL, face1, 1); | |
4686 | lface2 = lface_from_face_name (NULL, face2, 1); | |
4687 | equal_p = lface_equal_p (XVECTOR (lface1)->contents, | |
4688 | XVECTOR (lface2)->contents); | |
4689 | return equal_p ? Qt : Qnil; | |
4690 | } | |
4691 | ||
178c5d9c | 4692 | |
82641697 GM |
4693 | DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p, |
4694 | Sinternal_lisp_face_empty_p, 1, 2, 0, | |
4695 | "True if FACE has no attribute specified.\n\ | |
4696 | If the optional argument FRAME is given, report on face FACE in that frame.\n\ | |
4697 | If FRAME is t, report on the defaults for face FACE (for new frames).\n\ | |
4698 | If FRAME is omitted or nil, use the selected frame.") | |
4699 | (face, frame) | |
4700 | Lisp_Object face, frame; | |
4701 | { | |
4702 | struct frame *f; | |
4703 | Lisp_Object lface; | |
4704 | int i; | |
4705 | ||
4706 | if (NILP (frame)) | |
c0617987 GM |
4707 | frame = selected_frame; |
4708 | CHECK_LIVE_FRAME (frame, 0); | |
4709 | f = XFRAME (frame); | |
178c5d9c | 4710 | |
82641697 GM |
4711 | if (EQ (frame, Qt)) |
4712 | lface = lface_from_face_name (NULL, face, 1); | |
4713 | else | |
4714 | lface = lface_from_face_name (f, face, 1); | |
4715 | ||
4716 | for (i = 1; i < LFACE_VECTOR_SIZE; ++i) | |
4717 | if (!UNSPECIFIEDP (XVECTOR (lface)->contents[i])) | |
4718 | break; | |
178c5d9c | 4719 | |
82641697 GM |
4720 | return i == LFACE_VECTOR_SIZE ? Qt : Qnil; |
4721 | } | |
4722 | ||
4723 | ||
4724 | DEFUN ("frame-face-alist", Fframe_face_alist, Sframe_face_alist, | |
178c5d9c | 4725 | 0, 1, 0, |
82641697 GM |
4726 | "Return an alist of frame-local faces defined on FRAME.\n\ |
4727 | For internal use only.") | |
4728 | (frame) | |
4729 | Lisp_Object frame; | |
4730 | { | |
4731 | struct frame *f = frame_or_selected_frame (frame, 0); | |
4732 | return f->face_alist; | |
4733 | } | |
4734 | ||
4735 | ||
4736 | /* Return a hash code for Lisp string STRING with case ignored. Used | |
4737 | below in computing a hash value for a Lisp face. */ | |
4738 | ||
4739 | static INLINE unsigned | |
4740 | hash_string_case_insensitive (string) | |
4741 | Lisp_Object string; | |
4742 | { | |
4743 | unsigned char *s; | |
4744 | unsigned hash = 0; | |
4745 | xassert (STRINGP (string)); | |
4746 | for (s = XSTRING (string)->data; *s; ++s) | |
4747 | hash = (hash << 1) ^ tolower (*s); | |
4748 | return hash; | |
4749 | } | |
4750 | ||
4751 | ||
4752 | /* Return a hash code for face attribute vector V. */ | |
4753 | ||
4754 | static INLINE unsigned | |
4755 | lface_hash (v) | |
4756 | Lisp_Object *v; | |
4757 | { | |
4758 | return (hash_string_case_insensitive (v[LFACE_FAMILY_INDEX]) | |
4759 | ^ hash_string_case_insensitive (v[LFACE_FOREGROUND_INDEX]) | |
4760 | ^ hash_string_case_insensitive (v[LFACE_BACKGROUND_INDEX]) | |
6fc556fd KR |
4761 | ^ XFASTINT (v[LFACE_WEIGHT_INDEX]) |
4762 | ^ XFASTINT (v[LFACE_SLANT_INDEX]) | |
4763 | ^ XFASTINT (v[LFACE_SWIDTH_INDEX]) | |
82641697 GM |
4764 | ^ XFASTINT (v[LFACE_HEIGHT_INDEX])); |
4765 | } | |
4766 | ||
4767 | ||
4768 | /* Return non-zero if LFACE1 and LFACE2 specify the same font (without | |
4769 | considering charsets/registries). They do if they specify the same | |
39506348 KH |
4770 | family, point size, weight, width, slant, and fontset. Both LFACE1 |
4771 | and LFACE2 must be fully-specified. */ | |
82641697 GM |
4772 | |
4773 | static INLINE int | |
4774 | lface_same_font_attributes_p (lface1, lface2) | |
4775 | Lisp_Object *lface1, *lface2; | |
4776 | { | |
4777 | xassert (lface_fully_specified_p (lface1) | |
4778 | && lface_fully_specified_p (lface2)); | |
4779 | return (xstricmp (XSTRING (lface1[LFACE_FAMILY_INDEX])->data, | |
4780 | XSTRING (lface2[LFACE_FAMILY_INDEX])->data) == 0 | |
2c20458f | 4781 | && EQ (lface1[LFACE_HEIGHT_INDEX], lface2[LFACE_HEIGHT_INDEX]) |
82641697 GM |
4782 | && EQ (lface1[LFACE_SWIDTH_INDEX], lface2[LFACE_SWIDTH_INDEX]) |
4783 | && EQ (lface1[LFACE_WEIGHT_INDEX], lface2[LFACE_WEIGHT_INDEX]) | |
39506348 KH |
4784 | && EQ (lface1[LFACE_SLANT_INDEX], lface2[LFACE_SLANT_INDEX]) |
4785 | && (EQ (lface1[LFACE_FONT_INDEX], lface2[LFACE_FONT_INDEX]) | |
4786 | || (STRINGP (lface1[LFACE_FONT_INDEX]) | |
d00b1b63 | 4787 | && STRINGP (lface2[LFACE_FONT_INDEX]) |
39506348 KH |
4788 | && xstricmp (XSTRING (lface1[LFACE_FONT_INDEX])->data, |
4789 | XSTRING (lface2[LFACE_FONT_INDEX])->data)))); | |
82641697 GM |
4790 | } |
4791 | ||
4792 | ||
4793 | \f | |
4794 | /*********************************************************************** | |
4795 | Realized Faces | |
4796 | ***********************************************************************/ | |
4797 | ||
4798 | /* Allocate and return a new realized face for Lisp face attribute | |
39506348 | 4799 | vector ATTR. */ |
82641697 GM |
4800 | |
4801 | static struct face * | |
39506348 | 4802 | make_realized_face (attr) |
82641697 | 4803 | Lisp_Object *attr; |
82641697 GM |
4804 | { |
4805 | struct face *face = (struct face *) xmalloc (sizeof *face); | |
4806 | bzero (face, sizeof *face); | |
39506348 | 4807 | face->ascii_face = face; |
82641697 GM |
4808 | bcopy (attr, face->lface, sizeof face->lface); |
4809 | return face; | |
4810 | } | |
4811 | ||
4812 | ||
4813 | /* Free realized face FACE, including its X resources. FACE may | |
4814 | be null. */ | |
4815 | ||
4816 | static void | |
4817 | free_realized_face (f, face) | |
4818 | struct frame *f; | |
4819 | struct face *face; | |
4820 | { | |
4821 | if (face) | |
4822 | { | |
c3cee013 JR |
4823 | #ifdef HAVE_WINDOW_SYSTEM |
4824 | if (FRAME_WINDOW_P (f)) | |
82641697 | 4825 | { |
39506348 KH |
4826 | /* Free fontset of FACE if it is ASCII face. */ |
4827 | if (face->fontset >= 0 && face == face->ascii_face) | |
4828 | free_face_fontset (f, face); | |
82641697 GM |
4829 | if (face->gc) |
4830 | { | |
4831 | x_free_gc (f, face->gc); | |
4832 | face->gc = 0; | |
4833 | } | |
178c5d9c | 4834 | |
82641697 GM |
4835 | free_face_colors (f, face); |
4836 | x_destroy_bitmap (f, face->stipple); | |
4837 | } | |
c3cee013 | 4838 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4839 | |
4840 | xfree (face); | |
4841 | } | |
4842 | } | |
4843 | ||
4844 | ||
4845 | /* Prepare face FACE for subsequent display on frame F. This | |
4846 | allocated GCs if they haven't been allocated yet or have been freed | |
4847 | by clearing the face cache. */ | |
4848 | ||
4849 | void | |
4850 | prepare_face_for_display (f, face) | |
4851 | struct frame *f; | |
4852 | struct face *face; | |
4853 | { | |
c3cee013 JR |
4854 | #ifdef HAVE_WINDOW_SYSTEM |
4855 | xassert (FRAME_WINDOW_P (f)); | |
178c5d9c | 4856 | |
82641697 GM |
4857 | if (face->gc == 0) |
4858 | { | |
4859 | XGCValues xgcv; | |
4860 | unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures; | |
4861 | ||
4862 | xgcv.foreground = face->foreground; | |
4863 | xgcv.background = face->background; | |
c3cee013 | 4864 | #ifdef HAVE_X_WINDOWS |
82641697 | 4865 | xgcv.graphics_exposures = False; |
c3cee013 | 4866 | #endif |
82641697 GM |
4867 | /* The font of FACE may be null if we couldn't load it. */ |
4868 | if (face->font) | |
4869 | { | |
c3cee013 | 4870 | #ifdef HAVE_X_WINDOWS |
82641697 | 4871 | xgcv.font = face->font->fid; |
c3cee013 JR |
4872 | #endif |
4873 | #ifdef WINDOWSNT | |
4874 | xgcv.font = face->font; | |
4875 | #endif | |
82641697 GM |
4876 | mask |= GCFont; |
4877 | } | |
4878 | ||
4879 | BLOCK_INPUT; | |
c3cee013 | 4880 | #ifdef HAVE_X_WINDOWS |
82641697 GM |
4881 | if (face->stipple) |
4882 | { | |
be8a72f4 | 4883 | xgcv.fill_style = FillOpaqueStippled; |
82641697 GM |
4884 | xgcv.stipple = x_bitmap_pixmap (f, face->stipple); |
4885 | mask |= GCFillStyle | GCStipple; | |
4886 | } | |
c3cee013 | 4887 | #endif |
82641697 GM |
4888 | face->gc = x_create_gc (f, mask, &xgcv); |
4889 | UNBLOCK_INPUT; | |
4890 | } | |
c3cee013 | 4891 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4892 | } |
4893 | ||
82641697 GM |
4894 | \f |
4895 | /*********************************************************************** | |
4896 | Face Cache | |
4897 | ***********************************************************************/ | |
4898 | ||
4899 | /* Return a new face cache for frame F. */ | |
4900 | ||
4901 | static struct face_cache * | |
4902 | make_face_cache (f) | |
4903 | struct frame *f; | |
4904 | { | |
4905 | struct face_cache *c; | |
4906 | int size; | |
4907 | ||
4908 | c = (struct face_cache *) xmalloc (sizeof *c); | |
4909 | bzero (c, sizeof *c); | |
4910 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4911 | c->buckets = (struct face **) xmalloc (size); | |
4912 | bzero (c->buckets, size); | |
4913 | c->size = 50; | |
4914 | c->faces_by_id = (struct face **) xmalloc (c->size * sizeof *c->faces_by_id); | |
4915 | c->f = f; | |
4916 | return c; | |
4917 | } | |
4918 | ||
4919 | ||
4920 | /* Clear out all graphics contexts for all realized faces, except for | |
4921 | the basic faces. This should be done from time to time just to avoid | |
4922 | keeping too many graphics contexts that are no longer needed. */ | |
4923 | ||
4924 | static void | |
4925 | clear_face_gcs (c) | |
4926 | struct face_cache *c; | |
4927 | { | |
c3cee013 | 4928 | if (c && FRAME_WINDOW_P (c->f)) |
82641697 | 4929 | { |
c3cee013 | 4930 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
4931 | int i; |
4932 | for (i = BASIC_FACE_ID_SENTINEL; i < c->used; ++i) | |
4933 | { | |
4934 | struct face *face = c->faces_by_id[i]; | |
4935 | if (face && face->gc) | |
4936 | { | |
4937 | x_free_gc (c->f, face->gc); | |
4938 | face->gc = 0; | |
4939 | } | |
4940 | } | |
c3cee013 | 4941 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
4942 | } |
4943 | } | |
4944 | ||
4945 | ||
4946 | /* Free all realized faces in face cache C, including basic faces. C | |
4947 | may be null. If faces are freed, make sure the frame's current | |
4948 | matrix is marked invalid, so that a display caused by an expose | |
4949 | event doesn't try to use faces we destroyed. */ | |
4950 | ||
4951 | static void | |
4952 | free_realized_faces (c) | |
4953 | struct face_cache *c; | |
4954 | { | |
4955 | if (c && c->used) | |
4956 | { | |
4957 | int i, size; | |
4958 | struct frame *f = c->f; | |
4959 | ||
84ec3b4b GM |
4960 | /* We must block input here because we can't process X events |
4961 | safely while only some faces are freed, or when the frame's | |
4962 | current matrix still references freed faces. */ | |
4963 | BLOCK_INPUT; | |
4964 | ||
82641697 GM |
4965 | for (i = 0; i < c->used; ++i) |
4966 | { | |
4967 | free_realized_face (f, c->faces_by_id[i]); | |
4968 | c->faces_by_id[i] = NULL; | |
4969 | } | |
178c5d9c | 4970 | |
82641697 GM |
4971 | c->used = 0; |
4972 | size = FACE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; | |
4973 | bzero (c->buckets, size); | |
4974 | ||
4975 | /* Must do a thorough redisplay the next time. Mark current | |
4976 | matrices as invalid because they will reference faces freed | |
4977 | above. This function is also called when a frame is | |
4978 | destroyed. In this case, the root window of F is nil. */ | |
4979 | if (WINDOWP (f->root_window)) | |
4980 | { | |
4981 | clear_current_matrices (f); | |
4982 | ++windows_or_buffers_changed; | |
4983 | } | |
84ec3b4b GM |
4984 | |
4985 | UNBLOCK_INPUT; | |
82641697 GM |
4986 | } |
4987 | } | |
4988 | ||
4989 | ||
39506348 KH |
4990 | /* Free all faces realized for multibyte characters on frame F that |
4991 | has FONTSET. */ | |
4992 | ||
4993 | void | |
4994 | free_realized_multibyte_face (f, fontset) | |
4995 | struct frame *f; | |
4996 | int fontset; | |
4997 | { | |
4998 | struct face_cache *cache = FRAME_FACE_CACHE (f); | |
4999 | struct face *face; | |
5000 | int i; | |
5001 | ||
84ec3b4b GM |
5002 | /* We must block input here because we can't process X events safely |
5003 | while only some faces are freed, or when the frame's current | |
5004 | matrix still references freed faces. */ | |
5005 | BLOCK_INPUT; | |
178c5d9c | 5006 | |
39506348 KH |
5007 | for (i = 0; i < cache->used; i++) |
5008 | { | |
5009 | face = cache->faces_by_id[i]; | |
5010 | if (face | |
5011 | && face != face->ascii_face | |
5012 | && face->fontset == fontset) | |
5013 | { | |
5014 | uncache_face (cache, face); | |
5015 | free_realized_face (f, face); | |
5016 | } | |
5017 | } | |
178c5d9c | 5018 | |
84ec3b4b GM |
5019 | /* Must do a thorough redisplay the next time. Mark current |
5020 | matrices as invalid because they will reference faces freed | |
5021 | above. This function is also called when a frame is destroyed. | |
5022 | In this case, the root window of F is nil. */ | |
39506348 KH |
5023 | if (WINDOWP (f->root_window)) |
5024 | { | |
5025 | clear_current_matrices (f); | |
5026 | ++windows_or_buffers_changed; | |
5027 | } | |
178c5d9c | 5028 | |
84ec3b4b | 5029 | UNBLOCK_INPUT; |
39506348 KH |
5030 | } |
5031 | ||
5032 | ||
82641697 GM |
5033 | /* Free all realized faces on FRAME or on all frames if FRAME is nil. |
5034 | This is done after attributes of a named face have been changed, | |
5035 | because we can't tell which realized faces depend on that face. */ | |
5036 | ||
5037 | void | |
5038 | free_all_realized_faces (frame) | |
5039 | Lisp_Object frame; | |
5040 | { | |
5041 | if (NILP (frame)) | |
5042 | { | |
5043 | Lisp_Object rest; | |
5044 | FOR_EACH_FRAME (rest, frame) | |
5045 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5046 | } | |
5047 | else | |
5048 | free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame))); | |
5049 | } | |
5050 | ||
5051 | ||
5052 | /* Free face cache C and faces in it, including their X resources. */ | |
5053 | ||
5054 | static void | |
5055 | free_face_cache (c) | |
5056 | struct face_cache *c; | |
5057 | { | |
5058 | if (c) | |
5059 | { | |
5060 | free_realized_faces (c); | |
5061 | xfree (c->buckets); | |
5062 | xfree (c->faces_by_id); | |
5063 | xfree (c); | |
5064 | } | |
5065 | } | |
5066 | ||
5067 | ||
5068 | /* Cache realized face FACE in face cache C. HASH is the hash value | |
5069 | of FACE. If FACE->fontset >= 0, add the new face to the end of the | |
5070 | collision list of the face hash table of C. This is done because | |
39506348 KH |
5071 | otherwise lookup_face would find FACE for every character, even if |
5072 | faces with the same attributes but for specific characters exist. */ | |
82641697 GM |
5073 | |
5074 | static void | |
5075 | cache_face (c, face, hash) | |
5076 | struct face_cache *c; | |
5077 | struct face *face; | |
5078 | unsigned hash; | |
5079 | { | |
5080 | int i = hash % FACE_CACHE_BUCKETS_SIZE; | |
5081 | ||
5082 | face->hash = hash; | |
5083 | ||
5084 | if (face->fontset >= 0) | |
5085 | { | |
5086 | struct face *last = c->buckets[i]; | |
5087 | if (last) | |
5088 | { | |
5089 | while (last->next) | |
5090 | last = last->next; | |
5091 | last->next = face; | |
5092 | face->prev = last; | |
5093 | face->next = NULL; | |
5094 | } | |
5095 | else | |
5096 | { | |
5097 | c->buckets[i] = face; | |
5098 | face->prev = face->next = NULL; | |
5099 | } | |
5100 | } | |
5101 | else | |
5102 | { | |
5103 | face->prev = NULL; | |
5104 | face->next = c->buckets[i]; | |
5105 | if (face->next) | |
5106 | face->next->prev = face; | |
5107 | c->buckets[i] = face; | |
5108 | } | |
5109 | ||
5110 | /* Find a free slot in C->faces_by_id and use the index of the free | |
5111 | slot as FACE->id. */ | |
5112 | for (i = 0; i < c->used; ++i) | |
5113 | if (c->faces_by_id[i] == NULL) | |
5114 | break; | |
5115 | face->id = i; | |
178c5d9c | 5116 | |
82641697 GM |
5117 | /* Maybe enlarge C->faces_by_id. */ |
5118 | if (i == c->used && c->used == c->size) | |
5119 | { | |
5120 | int new_size = 2 * c->size; | |
5121 | int sz = new_size * sizeof *c->faces_by_id; | |
5122 | c->faces_by_id = (struct face **) xrealloc (c->faces_by_id, sz); | |
5123 | c->size = new_size; | |
5124 | } | |
5125 | ||
5126 | #if GLYPH_DEBUG | |
5127 | /* Check that FACE got a unique id. */ | |
5128 | { | |
5129 | int j, n; | |
5130 | struct face *face; | |
5131 | ||
5132 | for (j = n = 0; j < FACE_CACHE_BUCKETS_SIZE; ++j) | |
5133 | for (face = c->buckets[j]; face; face = face->next) | |
5134 | if (face->id == i) | |
5135 | ++n; | |
5136 | ||
5137 | xassert (n == 1); | |
5138 | } | |
5139 | #endif /* GLYPH_DEBUG */ | |
178c5d9c | 5140 | |
82641697 GM |
5141 | c->faces_by_id[i] = face; |
5142 | if (i == c->used) | |
5143 | ++c->used; | |
5144 | } | |
5145 | ||
5146 | ||
5147 | /* Remove face FACE from cache C. */ | |
5148 | ||
5149 | static void | |
5150 | uncache_face (c, face) | |
5151 | struct face_cache *c; | |
5152 | struct face *face; | |
5153 | { | |
5154 | int i = face->hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5155 | |
82641697 GM |
5156 | if (face->prev) |
5157 | face->prev->next = face->next; | |
5158 | else | |
5159 | c->buckets[i] = face->next; | |
178c5d9c | 5160 | |
82641697 GM |
5161 | if (face->next) |
5162 | face->next->prev = face->prev; | |
178c5d9c | 5163 | |
82641697 GM |
5164 | c->faces_by_id[face->id] = NULL; |
5165 | if (face->id == c->used) | |
5166 | --c->used; | |
5167 | } | |
5168 | ||
5169 | ||
5170 | /* Look up a realized face with face attributes ATTR in the face cache | |
39506348 KH |
5171 | of frame F. The face will be used to display character C. Value |
5172 | is the ID of the face found. If no suitable face is found, realize | |
5173 | a new one. In that case, if C is a multibyte character, BASE_FACE | |
0badc114 | 5174 | is a face that has the same attributes. */ |
82641697 GM |
5175 | |
5176 | INLINE int | |
39506348 | 5177 | lookup_face (f, attr, c, base_face) |
82641697 GM |
5178 | struct frame *f; |
5179 | Lisp_Object *attr; | |
39506348 KH |
5180 | int c; |
5181 | struct face *base_face; | |
82641697 | 5182 | { |
39506348 | 5183 | struct face_cache *cache = FRAME_FACE_CACHE (f); |
82641697 GM |
5184 | unsigned hash; |
5185 | int i; | |
5186 | struct face *face; | |
5187 | ||
39506348 | 5188 | xassert (cache != NULL); |
82641697 GM |
5189 | check_lface_attrs (attr); |
5190 | ||
5191 | /* Look up ATTR in the face cache. */ | |
5192 | hash = lface_hash (attr); | |
5193 | i = hash % FACE_CACHE_BUCKETS_SIZE; | |
178c5d9c | 5194 | |
39506348 | 5195 | for (face = cache->buckets[i]; face; face = face->next) |
82641697 | 5196 | if (face->hash == hash |
44747bd0 | 5197 | && (!FRAME_WINDOW_P (f) |
39506348 | 5198 | || FACE_SUITABLE_FOR_CHAR_P (face, c)) |
82641697 GM |
5199 | && lface_equal_p (face->lface, attr)) |
5200 | break; | |
5201 | ||
5202 | /* If not found, realize a new face. */ | |
5203 | if (face == NULL) | |
39506348 | 5204 | face = realize_face (cache, attr, c, base_face, -1); |
82641697 GM |
5205 | |
5206 | #if GLYPH_DEBUG | |
5207 | xassert (face == FACE_FROM_ID (f, face->id)); | |
d2ff77da KH |
5208 | |
5209 | /* When this function is called from face_for_char (in this case, C is | |
5210 | a multibyte character), a fontset of a face returned by | |
5211 | realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE, | |
5212 | C) is not sutisfied. The fontset is set for this face by | |
5213 | face_for_char later. */ | |
c87a1fda | 5214 | #if 0 |
c3cee013 | 5215 | if (FRAME_WINDOW_P (f)) |
39506348 | 5216 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
c87a1fda | 5217 | #endif |
82641697 | 5218 | #endif /* GLYPH_DEBUG */ |
178c5d9c | 5219 | |
82641697 GM |
5220 | return face->id; |
5221 | } | |
5222 | ||
5223 | ||
5224 | /* Return the face id of the realized face for named face SYMBOL on | |
39506348 | 5225 | frame F suitable for displaying character C. */ |
82641697 GM |
5226 | |
5227 | int | |
39506348 | 5228 | lookup_named_face (f, symbol, c) |
82641697 GM |
5229 | struct frame *f; |
5230 | Lisp_Object symbol; | |
39506348 | 5231 | int c; |
82641697 GM |
5232 | { |
5233 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5234 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5235 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5236 | ||
5237 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5238 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5239 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5240 | return lookup_face (f, attrs, c, NULL); |
82641697 GM |
5241 | } |
5242 | ||
5243 | ||
5244 | /* Return the ID of the realized ASCII face of Lisp face with ID | |
5245 | LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */ | |
5246 | ||
5247 | int | |
5248 | ascii_face_of_lisp_face (f, lface_id) | |
5249 | struct frame *f; | |
5250 | int lface_id; | |
5251 | { | |
5252 | int face_id; | |
178c5d9c | 5253 | |
82641697 GM |
5254 | if (lface_id >= 0 && lface_id < lface_id_to_name_size) |
5255 | { | |
5256 | Lisp_Object face_name = lface_id_to_name[lface_id]; | |
39506348 | 5257 | face_id = lookup_named_face (f, face_name, 0); |
82641697 GM |
5258 | } |
5259 | else | |
5260 | face_id = -1; | |
5261 | ||
5262 | return face_id; | |
5263 | } | |
5264 | ||
5265 | ||
5266 | /* Return a face for charset ASCII that is like the face with id | |
5267 | FACE_ID on frame F, but has a font that is STEPS steps smaller. | |
5268 | STEPS < 0 means larger. Value is the id of the face. */ | |
5269 | ||
5270 | int | |
5271 | smaller_face (f, face_id, steps) | |
5272 | struct frame *f; | |
5273 | int face_id, steps; | |
39506348 | 5274 | { |
c3cee013 | 5275 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5276 | struct face *face; |
5277 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5278 | int pt, last_pt, last_height; | |
5279 | int delta; | |
5280 | int new_face_id; | |
5281 | struct face *new_face; | |
5282 | ||
5283 | /* If not called for an X frame, just return the original face. */ | |
5284 | if (FRAME_TERMCAP_P (f)) | |
5285 | return face_id; | |
5286 | ||
5287 | /* Try in increments of 1/2 pt. */ | |
5288 | delta = steps < 0 ? 5 : -5; | |
5289 | steps = abs (steps); | |
178c5d9c | 5290 | |
82641697 GM |
5291 | face = FACE_FROM_ID (f, face_id); |
5292 | bcopy (face->lface, attrs, sizeof attrs); | |
5293 | pt = last_pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5294 | new_face_id = face_id; | |
5295 | last_height = FONT_HEIGHT (face->font); | |
5296 | ||
5297 | while (steps | |
5298 | && pt + delta > 0 | |
5299 | /* Give up if we cannot find a font within 10pt. */ | |
5300 | && abs (last_pt - pt) < 100) | |
5301 | { | |
5302 | /* Look up a face for a slightly smaller/larger font. */ | |
5303 | pt += delta; | |
5304 | attrs[LFACE_HEIGHT_INDEX] = make_number (pt); | |
39506348 | 5305 | new_face_id = lookup_face (f, attrs, 0, NULL); |
82641697 GM |
5306 | new_face = FACE_FROM_ID (f, new_face_id); |
5307 | ||
5308 | /* If height changes, count that as one step. */ | |
b4c3ca09 GM |
5309 | if ((delta < 0 && FONT_HEIGHT (new_face->font) < last_height) |
5310 | || (delta > 0 && FONT_HEIGHT (new_face->font) > last_height)) | |
82641697 GM |
5311 | { |
5312 | --steps; | |
5313 | last_height = FONT_HEIGHT (new_face->font); | |
5314 | last_pt = pt; | |
5315 | } | |
5316 | } | |
5317 | ||
5318 | return new_face_id; | |
5319 | ||
c3cee013 | 5320 | #else /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5321 | |
5322 | return face_id; | |
178c5d9c | 5323 | |
c3cee013 | 5324 | #endif /* not HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5325 | } |
5326 | ||
5327 | ||
5328 | /* Return a face for charset ASCII that is like the face with id | |
5329 | FACE_ID on frame F, but has height HEIGHT. */ | |
5330 | ||
5331 | int | |
5332 | face_with_height (f, face_id, height) | |
5333 | struct frame *f; | |
5334 | int face_id; | |
5335 | int height; | |
5336 | { | |
c3cee013 | 5337 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 GM |
5338 | struct face *face; |
5339 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5340 | ||
5341 | if (FRAME_TERMCAP_P (f) | |
5342 | || height <= 0) | |
5343 | return face_id; | |
5344 | ||
5345 | face = FACE_FROM_ID (f, face_id); | |
5346 | bcopy (face->lface, attrs, sizeof attrs); | |
5347 | attrs[LFACE_HEIGHT_INDEX] = make_number (height); | |
39506348 | 5348 | face_id = lookup_face (f, attrs, 0, NULL); |
c3cee013 | 5349 | #endif /* HAVE_WINDOW_SYSTEM */ |
178c5d9c | 5350 | |
82641697 GM |
5351 | return face_id; |
5352 | } | |
5353 | ||
44747bd0 | 5354 | /* Return the face id of the realized face for named face SYMBOL on |
39506348 KH |
5355 | frame F suitable for displaying character C, and use attributes of |
5356 | the face FACE_ID for attributes that aren't completely specified by | |
5357 | SYMBOL. This is like lookup_named_face, except that the default | |
5358 | attributes come from FACE_ID, not from the default face. FACE_ID | |
5359 | is assumed to be already realized. */ | |
44747bd0 EZ |
5360 | |
5361 | int | |
39506348 | 5362 | lookup_derived_face (f, symbol, c, face_id) |
44747bd0 EZ |
5363 | struct frame *f; |
5364 | Lisp_Object symbol; | |
39506348 | 5365 | int c; |
44747bd0 EZ |
5366 | int face_id; |
5367 | { | |
5368 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
5369 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
5370 | struct face *default_face = FACE_FROM_ID (f, face_id); | |
5371 | ||
5372 | if (!default_face) | |
5373 | abort (); | |
5374 | ||
5375 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
5376 | bcopy (default_face->lface, attrs, sizeof attrs); | |
2c20458f | 5377 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
39506348 | 5378 | return lookup_face (f, attrs, c, default_face); |
44747bd0 EZ |
5379 | } |
5380 | ||
82641697 GM |
5381 | |
5382 | \f | |
5383 | /*********************************************************************** | |
5384 | Font selection | |
5385 | ***********************************************************************/ | |
5386 | ||
5387 | DEFUN ("internal-set-font-selection-order", | |
5388 | Finternal_set_font_selection_order, | |
5389 | Sinternal_set_font_selection_order, 1, 1, 0, | |
5390 | "Set font selection order for face font selection to ORDER.\n\ | |
5391 | ORDER must be a list of length 4 containing the symbols `:width',\n\ | |
5392 | `:height', `:weight', and `:slant'. Face attributes appearing\n\ | |
5393 | first in ORDER are matched first, e.g. if `:height' appears before\n\ | |
5394 | `:weight' in ORDER, font selection first tries to find a font with\n\ | |
5395 | a suitable height, and then tries to match the font weight.\n\ | |
5396 | Value is ORDER.") | |
5397 | (order) | |
5398 | Lisp_Object order; | |
5399 | { | |
5400 | Lisp_Object list; | |
5401 | int i; | |
5402 | int indices[4]; | |
178c5d9c | 5403 | |
82641697 GM |
5404 | CHECK_LIST (order, 0); |
5405 | bzero (indices, sizeof indices); | |
5406 | i = 0; | |
5407 | ||
5408 | for (list = order; | |
5409 | CONSP (list) && i < DIM (indices); | |
5410 | list = XCDR (list), ++i) | |
5411 | { | |
5412 | Lisp_Object attr = XCAR (list); | |
5413 | int xlfd; | |
5414 | ||
5415 | if (EQ (attr, QCwidth)) | |
5416 | xlfd = XLFD_SWIDTH; | |
5417 | else if (EQ (attr, QCheight)) | |
5418 | xlfd = XLFD_POINT_SIZE; | |
5419 | else if (EQ (attr, QCweight)) | |
5420 | xlfd = XLFD_WEIGHT; | |
5421 | else if (EQ (attr, QCslant)) | |
5422 | xlfd = XLFD_SLANT; | |
5423 | else | |
5424 | break; | |
5425 | ||
5426 | if (indices[i] != 0) | |
5427 | break; | |
5428 | indices[i] = xlfd; | |
5429 | } | |
5430 | ||
5431 | if (!NILP (list) | |
5432 | || i != DIM (indices) | |
5433 | || indices[0] == 0 | |
5434 | || indices[1] == 0 | |
5435 | || indices[2] == 0 | |
5436 | || indices[3] == 0) | |
5437 | signal_error ("Invalid font sort order", order); | |
5438 | ||
5439 | if (bcmp (indices, font_sort_order, sizeof indices) != 0) | |
5440 | { | |
5441 | bcopy (indices, font_sort_order, sizeof font_sort_order); | |
5442 | free_all_realized_faces (Qnil); | |
5443 | } | |
178c5d9c | 5444 | |
82641697 GM |
5445 | return Qnil; |
5446 | } | |
5447 | ||
5448 | ||
5449 | DEFUN ("internal-set-alternative-font-family-alist", | |
5450 | Finternal_set_alternative_font_family_alist, | |
5451 | Sinternal_set_alternative_font_family_alist, 1, 1, 0, | |
5452 | "Define alternative font families to try in face font selection.\n\ | |
5453 | ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\ | |
5454 | Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\ | |
5455 | be found. Value is ALIST.") | |
5456 | (alist) | |
5457 | Lisp_Object alist; | |
5458 | { | |
5459 | CHECK_LIST (alist, 0); | |
5460 | Vface_alternative_font_family_alist = alist; | |
5461 | free_all_realized_faces (Qnil); | |
5462 | return alist; | |
5463 | } | |
5464 | ||
5465 | ||
c3cee013 | 5466 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 5467 | |
82641697 GM |
5468 | /* Value is non-zero if FONT is the name of a scalable font. The |
5469 | X11R6 XLFD spec says that point size, pixel size, and average width | |
5470 | are zero for scalable fonts. Intlfonts contain at least one | |
5471 | scalable font ("*-muleindian-1") for which this isn't true, so we | |
5472 | just test average width. */ | |
5473 | ||
5474 | static int | |
5475 | font_scalable_p (font) | |
5476 | struct font_name *font; | |
5477 | { | |
5478 | char *s = font->fields[XLFD_AVGWIDTH]; | |
c3cee013 JR |
5479 | return (*s == '0' && *(s + 1) == '\0') |
5480 | #ifdef WINDOWSNT | |
5481 | /* Windows implementation of XLFD is slightly broken for backward | |
5482 | compatibility with previous broken versions, so test for | |
5483 | wildcards as well as 0. */ | |
5484 | || *s == '*' | |
5485 | #endif | |
5486 | ; | |
82641697 GM |
5487 | } |
5488 | ||
5489 | ||
5490 | /* Value is non-zero if FONT1 is a better match for font attributes | |
5491 | VALUES than FONT2. VALUES is an array of face attribute values in | |
5492 | font sort order. COMPARE_PT_P zero means don't compare point | |
5493 | sizes. */ | |
5494 | ||
5495 | static int | |
5496 | better_font_p (values, font1, font2, compare_pt_p) | |
5497 | int *values; | |
5498 | struct font_name *font1, *font2; | |
5499 | int compare_pt_p; | |
5500 | { | |
5501 | int i; | |
178c5d9c | 5502 | |
82641697 GM |
5503 | for (i = 0; i < 4; ++i) |
5504 | { | |
5505 | int xlfd_idx = font_sort_order[i]; | |
5506 | ||
5507 | if (compare_pt_p || xlfd_idx != XLFD_POINT_SIZE) | |
5508 | { | |
5509 | int delta1 = abs (values[i] - font1->numeric[xlfd_idx]); | |
5510 | int delta2 = abs (values[i] - font2->numeric[xlfd_idx]); | |
178c5d9c | 5511 | |
82641697 GM |
5512 | if (delta1 > delta2) |
5513 | return 0; | |
5514 | else if (delta1 < delta2) | |
5515 | return 1; | |
5516 | else | |
5517 | { | |
5518 | /* The difference may be equal because, e.g., the face | |
5519 | specifies `italic' but we have only `regular' and | |
5520 | `oblique'. Prefer `oblique' in this case. */ | |
5521 | if ((xlfd_idx == XLFD_WEIGHT || xlfd_idx == XLFD_SLANT) | |
5522 | && font1->numeric[xlfd_idx] > values[i] | |
5523 | && font2->numeric[xlfd_idx] < values[i]) | |
5524 | return 1; | |
5525 | } | |
5526 | } | |
5527 | } | |
178c5d9c | 5528 | |
82641697 GM |
5529 | return 0; |
5530 | } | |
5531 | ||
5532 | ||
82641697 GM |
5533 | /* Value is non-zero if FONT is an exact match for face attributes in |
5534 | SPECIFIED. SPECIFIED is an array of face attribute values in font | |
5535 | sort order. */ | |
5536 | ||
5537 | static int | |
5538 | exact_face_match_p (specified, font) | |
5539 | int *specified; | |
5540 | struct font_name *font; | |
5541 | { | |
5542 | int i; | |
178c5d9c | 5543 | |
82641697 GM |
5544 | for (i = 0; i < 4; ++i) |
5545 | if (specified[i] != font->numeric[font_sort_order[i]]) | |
5546 | break; | |
5547 | ||
5548 | return i == 4; | |
5549 | } | |
5550 | ||
5551 | ||
5552 | /* Value is the name of a scaled font, generated from scalable font | |
5553 | FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to. | |
5554 | Value is allocated from heap. */ | |
5555 | ||
5556 | static char * | |
5557 | build_scalable_font_name (f, font, specified_pt) | |
5558 | struct frame *f; | |
5559 | struct font_name *font; | |
5560 | int specified_pt; | |
5561 | { | |
5562 | char point_size[20], pixel_size[20]; | |
5563 | int pixel_value; | |
5564 | double resy = FRAME_X_DISPLAY_INFO (f)->resy; | |
5565 | double pt; | |
5566 | ||
5567 | /* If scalable font is for a specific resolution, compute | |
5568 | the point size we must specify from the resolution of | |
5569 | the display and the specified resolution of the font. */ | |
5570 | if (font->numeric[XLFD_RESY] != 0) | |
5571 | { | |
5572 | pt = resy / font->numeric[XLFD_RESY] * specified_pt + 0.5; | |
5573 | pixel_value = font->numeric[XLFD_RESY] / 720.0 * pt; | |
5574 | } | |
5575 | else | |
5576 | { | |
5577 | pt = specified_pt; | |
5578 | pixel_value = resy / 720.0 * pt; | |
5579 | } | |
178c5d9c | 5580 | |
82641697 GM |
5581 | /* Set point size of the font. */ |
5582 | sprintf (point_size, "%d", (int) pt); | |
5583 | font->fields[XLFD_POINT_SIZE] = point_size; | |
5584 | font->numeric[XLFD_POINT_SIZE] = pt; | |
178c5d9c | 5585 | |
82641697 GM |
5586 | /* Set pixel size. */ |
5587 | sprintf (pixel_size, "%d", pixel_value); | |
5588 | font->fields[XLFD_PIXEL_SIZE] = pixel_size; | |
5589 | font->numeric[XLFD_PIXEL_SIZE] = pixel_value; | |
178c5d9c | 5590 | |
82641697 GM |
5591 | /* If font doesn't specify its resolution, use the |
5592 | resolution of the display. */ | |
5593 | if (font->numeric[XLFD_RESY] == 0) | |
5594 | { | |
5595 | char buffer[20]; | |
5596 | sprintf (buffer, "%d", (int) resy); | |
5597 | font->fields[XLFD_RESY] = buffer; | |
5598 | font->numeric[XLFD_RESY] = resy; | |
5599 | } | |
178c5d9c | 5600 | |
82641697 GM |
5601 | if (strcmp (font->fields[XLFD_RESX], "0") == 0) |
5602 | { | |
5603 | char buffer[20]; | |
5604 | int resx = FRAME_X_DISPLAY_INFO (f)->resx; | |
5605 | sprintf (buffer, "%d", resx); | |
5606 | font->fields[XLFD_RESX] = buffer; | |
5607 | font->numeric[XLFD_RESX] = resx; | |
5608 | } | |
5609 | ||
5610 | return build_font_name (font); | |
5611 | } | |
5612 | ||
5613 | ||
5614 | /* Value is non-zero if we are allowed to use scalable font FONT. We | |
5615 | can't run a Lisp function here since this function may be called | |
5616 | with input blocked. */ | |
5617 | ||
5618 | static int | |
5619 | may_use_scalable_font_p (font, name) | |
5620 | struct font_name *font; | |
5621 | char *name; | |
5622 | { | |
5623 | if (EQ (Vscalable_fonts_allowed, Qt)) | |
5624 | return 1; | |
5625 | else if (CONSP (Vscalable_fonts_allowed)) | |
5626 | { | |
5627 | Lisp_Object tail, regexp; | |
178c5d9c | 5628 | |
82641697 GM |
5629 | for (tail = Vscalable_fonts_allowed; CONSP (tail); tail = XCDR (tail)) |
5630 | { | |
5631 | regexp = XCAR (tail); | |
5632 | if (STRINGP (regexp) | |
5633 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
5634 | return 1; | |
5635 | } | |
5636 | } | |
178c5d9c | 5637 | |
82641697 GM |
5638 | return 0; |
5639 | } | |
5640 | ||
82641697 GM |
5641 | |
5642 | ||
5643 | /* Return the name of the best matching font for face attributes | |
5644 | ATTRS in the array of font_name structures FONTS which contains | |
5645 | NFONTS elements. Value is a font name which is allocated from | |
5646 | the heap. FONTS is freed by this function. */ | |
5647 | ||
5648 | static char * | |
5649 | best_matching_font (f, attrs, fonts, nfonts) | |
5650 | struct frame *f; | |
5651 | Lisp_Object *attrs; | |
5652 | struct font_name *fonts; | |
5653 | int nfonts; | |
5654 | { | |
5655 | char *font_name; | |
5656 | struct font_name *best; | |
334a2e2a | 5657 | int i, pt = 0; |
82641697 GM |
5658 | int specified[4]; |
5659 | int exact_p; | |
5660 | ||
5661 | if (nfonts == 0) | |
5662 | return NULL; | |
5663 | ||
5664 | /* Make specified font attributes available in `specified', | |
5665 | indexed by sort order. */ | |
5666 | for (i = 0; i < DIM (font_sort_order); ++i) | |
5667 | { | |
5668 | int xlfd_idx = font_sort_order[i]; | |
178c5d9c | 5669 | |
82641697 GM |
5670 | if (xlfd_idx == XLFD_SWIDTH) |
5671 | specified[i] = face_numeric_swidth (attrs[LFACE_SWIDTH_INDEX]); | |
5672 | else if (xlfd_idx == XLFD_POINT_SIZE) | |
5673 | specified[i] = pt = XFASTINT (attrs[LFACE_HEIGHT_INDEX]); | |
5674 | else if (xlfd_idx == XLFD_WEIGHT) | |
5675 | specified[i] = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
5676 | else if (xlfd_idx == XLFD_SLANT) | |
5677 | specified[i] = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
5678 | else | |
5679 | abort (); | |
5680 | } | |
5681 | ||
82641697 | 5682 | exact_p = 0; |
178c5d9c | 5683 | |
82641697 GM |
5684 | /* Start with the first non-scalable font in the list. */ |
5685 | for (i = 0; i < nfonts; ++i) | |
5686 | if (!font_scalable_p (fonts + i)) | |
5687 | break; | |
5688 | ||
5689 | /* Find the best match among the non-scalable fonts. */ | |
5690 | if (i < nfonts) | |
5691 | { | |
5692 | best = fonts + i; | |
178c5d9c | 5693 | |
82641697 GM |
5694 | for (i = 1; i < nfonts; ++i) |
5695 | if (!font_scalable_p (fonts + i) | |
5696 | && better_font_p (specified, fonts + i, best, 1)) | |
5697 | { | |
5698 | best = fonts + i; | |
5699 | ||
5700 | exact_p = exact_face_match_p (specified, best); | |
5701 | if (exact_p) | |
5702 | break; | |
5703 | } | |
178c5d9c | 5704 | |
82641697 GM |
5705 | } |
5706 | else | |
5707 | best = NULL; | |
5708 | ||
5709 | /* Unless we found an exact match among non-scalable fonts, see if | |
5710 | we can find a better match among scalable fonts. */ | |
5711 | if (!exact_p) | |
5712 | { | |
5713 | /* A scalable font is better if | |
5714 | ||
5715 | 1. its weight, slant, swidth attributes are better, or. | |
178c5d9c | 5716 | |
82641697 GM |
5717 | 2. the best non-scalable font doesn't have the required |
5718 | point size, and the scalable fonts weight, slant, swidth | |
5719 | isn't worse. */ | |
5720 | ||
5721 | int non_scalable_has_exact_height_p; | |
5722 | ||
5723 | if (best && best->numeric[XLFD_POINT_SIZE] == pt) | |
5724 | non_scalable_has_exact_height_p = 1; | |
5725 | else | |
5726 | non_scalable_has_exact_height_p = 0; | |
178c5d9c | 5727 | |
82641697 GM |
5728 | for (i = 0; i < nfonts; ++i) |
5729 | if (font_scalable_p (fonts + i)) | |
5730 | { | |
5731 | if (best == NULL | |
5732 | || better_font_p (specified, fonts + i, best, 0) | |
5733 | || (!non_scalable_has_exact_height_p | |
5734 | && !better_font_p (specified, best, fonts + i, 0))) | |
5735 | best = fonts + i; | |
5736 | } | |
5737 | } | |
5738 | ||
5739 | if (font_scalable_p (best)) | |
5740 | font_name = build_scalable_font_name (f, best, pt); | |
5741 | else | |
5742 | font_name = build_font_name (best); | |
178c5d9c | 5743 | |
82641697 GM |
5744 | /* Free font_name structures. */ |
5745 | free_font_names (fonts, nfonts); | |
178c5d9c | 5746 | |
82641697 GM |
5747 | return font_name; |
5748 | } | |
5749 | ||
5750 | ||
5751 | /* Try to get a list of fonts on frame F with font family FAMILY and | |
5752 | registry/encoding REGISTRY. Return in *FONTS a pointer to a vector | |
5753 | of font_name structures for the fonts matched. Value is the number | |
5754 | of fonts found. */ | |
5755 | ||
5756 | static int | |
5757 | try_font_list (f, attrs, pattern, family, registry, fonts) | |
5758 | struct frame *f; | |
5759 | Lisp_Object *attrs; | |
39506348 | 5760 | Lisp_Object pattern, family, registry; |
82641697 GM |
5761 | struct font_name **fonts; |
5762 | { | |
5763 | int nfonts; | |
5764 | ||
39506348 KH |
5765 | if (NILP (family) && STRINGP (attrs[LFACE_FAMILY_INDEX])) |
5766 | family = attrs[LFACE_FAMILY_INDEX]; | |
178c5d9c | 5767 | |
82641697 | 5768 | nfonts = font_list (f, pattern, family, registry, fonts); |
178c5d9c | 5769 | |
39506348 | 5770 | if (nfonts == 0 && !NILP (family)) |
82641697 GM |
5771 | { |
5772 | Lisp_Object alter; | |
178c5d9c | 5773 | |
82641697 GM |
5774 | /* Try alternative font families from |
5775 | Vface_alternative_font_family_alist. */ | |
39506348 | 5776 | alter = Fassoc (family, Vface_alternative_font_family_alist); |
82641697 GM |
5777 | if (CONSP (alter)) |
5778 | for (alter = XCDR (alter); | |
5779 | CONSP (alter) && nfonts == 0; | |
5780 | alter = XCDR (alter)) | |
5781 | { | |
5782 | if (STRINGP (XCAR (alter))) | |
39506348 | 5783 | nfonts = font_list (f, Qnil, XCAR (alter), registry, fonts); |
82641697 | 5784 | } |
178c5d9c | 5785 | |
82641697 GM |
5786 | /* Try font family of the default face or "fixed". */ |
5787 | if (nfonts == 0) | |
5788 | { | |
5789 | struct face *dflt = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5790 | if (dflt) | |
39506348 | 5791 | family = dflt->lface[LFACE_FAMILY_INDEX]; |
82641697 | 5792 | else |
39506348 KH |
5793 | family = build_string ("fixed"); |
5794 | nfonts = font_list (f, Qnil, family, registry, fonts); | |
82641697 | 5795 | } |
178c5d9c | 5796 | |
82641697 GM |
5797 | /* Try any family with the given registry. */ |
5798 | if (nfonts == 0) | |
39506348 | 5799 | nfonts = font_list (f, Qnil, Qnil, registry, fonts); |
82641697 GM |
5800 | } |
5801 | ||
5802 | return nfonts; | |
5803 | } | |
5804 | ||
82641697 | 5805 | |
39506348 KH |
5806 | /* Return the fontset id of the base fontset name or alias name given |
5807 | by the fontset attribute of ATTRS. Value is -1 if the fontset | |
5808 | attribute of ATTRS doesn't name a fontset. */ | |
82641697 GM |
5809 | |
5810 | static int | |
39506348 | 5811 | face_fontset (attrs) |
82641697 GM |
5812 | Lisp_Object *attrs; |
5813 | { | |
39506348 | 5814 | Lisp_Object name; |
82641697 | 5815 | int fontset; |
178c5d9c | 5816 | |
39506348 KH |
5817 | name = attrs[LFACE_FONT_INDEX]; |
5818 | if (!STRINGP (name)) | |
5819 | return -1; | |
5820 | return fs_query_fontset (name, 0); | |
82641697 GM |
5821 | } |
5822 | ||
5823 | ||
39506348 KH |
5824 | /* Choose a name of font to use on frame F to display character C with |
5825 | Lisp face attributes specified by ATTRS. The font name is | |
5826 | determined by the font-related attributes in ATTRS and the name | |
5827 | pattern for C in FONTSET. Value is the font name which is | |
5828 | allocated from the heap and must be freed by the caller, or NULL if | |
5829 | we can get no information about the font name of C. It is assured | |
5830 | that we always get some information for a single byte | |
5831 | character. */ | |
82641697 GM |
5832 | |
5833 | static char * | |
39506348 | 5834 | choose_face_font (f, attrs, fontset, c) |
82641697 GM |
5835 | struct frame *f; |
5836 | Lisp_Object *attrs; | |
39506348 | 5837 | int fontset, c; |
82641697 | 5838 | { |
39506348 | 5839 | Lisp_Object pattern; |
82641697 | 5840 | char *font_name = NULL; |
82641697 GM |
5841 | struct font_name *fonts; |
5842 | int nfonts; | |
178c5d9c | 5843 | |
39506348 KH |
5844 | /* Get (foundry and) family name and registry (and encoding) name of |
5845 | a font for C. */ | |
5846 | pattern = fontset_font_pattern (f, fontset, c); | |
5847 | if (NILP (pattern)) | |
5848 | { | |
5849 | xassert (!SINGLE_BYTE_CHAR_P (c)); | |
5850 | return NULL; | |
5851 | } | |
5852 | /* If what we got is a name pattern, return it. */ | |
5853 | if (STRINGP (pattern)) | |
5854 | return xstrdup (XSTRING (pattern)->data); | |
82641697 | 5855 | |
39506348 KH |
5856 | /* Family name may be specified both in ATTRS and car part of |
5857 | PATTERN. The former has higher priority if C is a single byte | |
5858 | character. */ | |
5859 | if (STRINGP (attrs[LFACE_FAMILY_INDEX]) | |
5860 | && SINGLE_BYTE_CHAR_P (c)) | |
5861 | XCAR (pattern) = Qnil; | |
82641697 | 5862 | |
178c5d9c | 5863 | /* Get a list of fonts matching that pattern and choose the |
82641697 | 5864 | best match for the specified face attributes from it. */ |
39506348 KH |
5865 | nfonts = try_font_list (f, attrs, Qnil, XCAR (pattern), XCDR (pattern), |
5866 | &fonts); | |
82641697 GM |
5867 | font_name = best_matching_font (f, attrs, fonts, nfonts); |
5868 | return font_name; | |
5869 | } | |
5870 | ||
c3cee013 | 5871 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 GM |
5872 | |
5873 | ||
5874 | \f | |
5875 | /*********************************************************************** | |
5876 | Face Realization | |
5877 | ***********************************************************************/ | |
5878 | ||
5879 | /* Realize basic faces on frame F. Value is zero if frame parameters | |
5880 | of F don't contain enough information needed to realize the default | |
5881 | face. */ | |
5882 | ||
5883 | static int | |
5884 | realize_basic_faces (f) | |
5885 | struct frame *f; | |
5886 | { | |
5887 | int success_p = 0; | |
17e8204b GM |
5888 | |
5889 | /* Block input there so that we won't be surprised by an X expose | |
5890 | event, for instance without having the faces set up. */ | |
5891 | BLOCK_INPUT; | |
178c5d9c | 5892 | |
82641697 GM |
5893 | if (realize_default_face (f)) |
5894 | { | |
92610620 | 5895 | realize_named_face (f, Qmode_line, MODE_LINE_FACE_ID); |
9ea173e8 | 5896 | realize_named_face (f, Qtool_bar, TOOL_BAR_FACE_ID); |
8bd201d6 | 5897 | realize_named_face (f, Qfringe, BITMAP_AREA_FACE_ID); |
045dee35 | 5898 | realize_named_face (f, Qheader_line, HEADER_LINE_FACE_ID); |
8bd201d6 GM |
5899 | realize_named_face (f, Qscroll_bar, SCROLL_BAR_FACE_ID); |
5900 | realize_named_face (f, Qborder, BORDER_FACE_ID); | |
5901 | realize_named_face (f, Qcursor, CURSOR_FACE_ID); | |
5902 | realize_named_face (f, Qmouse, MOUSE_FACE_ID); | |
c7ae3284 | 5903 | realize_named_face (f, Qmenu, MENU_FACE_ID); |
82641697 GM |
5904 | success_p = 1; |
5905 | } | |
5906 | ||
17e8204b | 5907 | UNBLOCK_INPUT; |
82641697 GM |
5908 | return success_p; |
5909 | } | |
5910 | ||
5911 | ||
5912 | /* Realize the default face on frame F. If the face is not fully | |
5913 | specified, make it fully-specified. Attributes of the default face | |
5914 | that are not explicitly specified are taken from frame parameters. */ | |
5915 | ||
5916 | static int | |
5917 | realize_default_face (f) | |
5918 | struct frame *f; | |
5919 | { | |
5920 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
5921 | Lisp_Object lface; | |
5922 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
82641697 GM |
5923 | Lisp_Object frame_font; |
5924 | struct face *face; | |
5925 | int fontset; | |
5926 | ||
5927 | /* If the `default' face is not yet known, create it. */ | |
5928 | lface = lface_from_face_name (f, Qdefault, 0); | |
5929 | if (NILP (lface)) | |
5930 | { | |
5931 | Lisp_Object frame; | |
5932 | XSETFRAME (frame, f); | |
5933 | lface = Finternal_make_lisp_face (Qdefault, frame); | |
5934 | } | |
5935 | ||
c3cee013 JR |
5936 | #ifdef HAVE_WINDOW_SYSTEM |
5937 | if (FRAME_WINDOW_P (f)) | |
82641697 GM |
5938 | { |
5939 | /* Set frame_font to the value of the `font' frame parameter. */ | |
5940 | frame_font = Fassq (Qfont, f->param_alist); | |
5941 | xassert (CONSP (frame_font) && STRINGP (XCDR (frame_font))); | |
5942 | frame_font = XCDR (frame_font); | |
39506348 | 5943 | set_lface_from_font_name (f, lface, frame_font, 0, 1); |
82641697 | 5944 | } |
c3cee013 | 5945 | #endif /* HAVE_WINDOW_SYSTEM */ |
82641697 | 5946 | |
44747bd0 | 5947 | if (!FRAME_WINDOW_P (f)) |
82641697 GM |
5948 | { |
5949 | LFACE_FAMILY (lface) = build_string ("default"); | |
5950 | LFACE_SWIDTH (lface) = Qnormal; | |
5951 | LFACE_HEIGHT (lface) = make_number (1); | |
5952 | LFACE_WEIGHT (lface) = Qnormal; | |
5953 | LFACE_SLANT (lface) = Qnormal; | |
5954 | } | |
178c5d9c | 5955 | |
82641697 GM |
5956 | if (UNSPECIFIEDP (LFACE_UNDERLINE (lface))) |
5957 | LFACE_UNDERLINE (lface) = Qnil; | |
178c5d9c | 5958 | |
82641697 GM |
5959 | if (UNSPECIFIEDP (LFACE_OVERLINE (lface))) |
5960 | LFACE_OVERLINE (lface) = Qnil; | |
178c5d9c | 5961 | |
82641697 GM |
5962 | if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface))) |
5963 | LFACE_STRIKE_THROUGH (lface) = Qnil; | |
178c5d9c | 5964 | |
82641697 GM |
5965 | if (UNSPECIFIEDP (LFACE_BOX (lface))) |
5966 | LFACE_BOX (lface) = Qnil; | |
178c5d9c | 5967 | |
82641697 GM |
5968 | if (UNSPECIFIEDP (LFACE_INVERSE (lface))) |
5969 | LFACE_INVERSE (lface) = Qnil; | |
178c5d9c | 5970 | |
82641697 GM |
5971 | if (UNSPECIFIEDP (LFACE_FOREGROUND (lface))) |
5972 | { | |
5973 | /* This function is called so early that colors are not yet | |
5974 | set in the frame parameter list. */ | |
5975 | Lisp_Object color = Fassq (Qforeground_color, f->param_alist); | |
178c5d9c | 5976 | |
82641697 GM |
5977 | if (CONSP (color) && STRINGP (XCDR (color))) |
5978 | LFACE_FOREGROUND (lface) = XCDR (color); | |
c3cee013 | 5979 | else if (FRAME_WINDOW_P (f)) |
82641697 | 5980 | return 0; |
f9d2fdc4 | 5981 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5982 | LFACE_FOREGROUND (lface) = build_string (unspecified_fg); |
f9d2fdc4 | 5983 | else |
82641697 GM |
5984 | abort (); |
5985 | } | |
178c5d9c | 5986 | |
82641697 GM |
5987 | if (UNSPECIFIEDP (LFACE_BACKGROUND (lface))) |
5988 | { | |
5989 | /* This function is called so early that colors are not yet | |
5990 | set in the frame parameter list. */ | |
5991 | Lisp_Object color = Fassq (Qbackground_color, f->param_alist); | |
5992 | if (CONSP (color) && STRINGP (XCDR (color))) | |
5993 | LFACE_BACKGROUND (lface) = XCDR (color); | |
c3cee013 | 5994 | else if (FRAME_WINDOW_P (f)) |
82641697 | 5995 | return 0; |
f9d2fdc4 | 5996 | else if (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f)) |
ef917393 | 5997 | LFACE_BACKGROUND (lface) = build_string (unspecified_bg); |
f9d2fdc4 | 5998 | else |
82641697 GM |
5999 | abort (); |
6000 | } | |
178c5d9c | 6001 | |
82641697 GM |
6002 | if (UNSPECIFIEDP (LFACE_STIPPLE (lface))) |
6003 | LFACE_STIPPLE (lface) = Qnil; | |
6004 | ||
6005 | /* Realize the face; it must be fully-specified now. */ | |
6006 | xassert (lface_fully_specified_p (XVECTOR (lface)->contents)); | |
6007 | check_lface (lface); | |
6008 | bcopy (XVECTOR (lface)->contents, attrs, sizeof attrs); | |
39506348 | 6009 | face = realize_face (c, attrs, 0, NULL, DEFAULT_FACE_ID); |
82641697 GM |
6010 | return 1; |
6011 | } | |
6012 | ||
6013 | ||
6014 | /* Realize basic faces other than the default face in face cache C. | |
6015 | SYMBOL is the face name, ID is the face id the realized face must | |
6016 | have. The default face must have been realized already. */ | |
6017 | ||
6018 | static void | |
6019 | realize_named_face (f, symbol, id) | |
6020 | struct frame *f; | |
6021 | Lisp_Object symbol; | |
6022 | int id; | |
6023 | { | |
6024 | struct face_cache *c = FRAME_FACE_CACHE (f); | |
6025 | Lisp_Object lface = lface_from_face_name (f, symbol, 0); | |
6026 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6027 | Lisp_Object symbol_attrs[LFACE_VECTOR_SIZE]; | |
6028 | struct face *new_face; | |
6029 | ||
6030 | /* The default face must exist and be fully specified. */ | |
6031 | get_lface_attributes (f, Qdefault, attrs, 1); | |
6032 | check_lface_attrs (attrs); | |
6033 | xassert (lface_fully_specified_p (attrs)); | |
6034 | ||
6035 | /* If SYMBOL isn't know as a face, create it. */ | |
6036 | if (NILP (lface)) | |
6037 | { | |
6038 | Lisp_Object frame; | |
6039 | XSETFRAME (frame, f); | |
6040 | lface = Finternal_make_lisp_face (symbol, frame); | |
6041 | } | |
6042 | ||
6043 | /* Merge SYMBOL's face with the default face. */ | |
6044 | get_lface_attributes (f, symbol, symbol_attrs, 1); | |
2c20458f | 6045 | merge_face_vectors (f, symbol_attrs, attrs, Qnil); |
82641697 GM |
6046 | |
6047 | /* Realize the face. */ | |
39506348 | 6048 | new_face = realize_face (c, attrs, 0, NULL, id); |
82641697 GM |
6049 | } |
6050 | ||
6051 | ||
6052 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6053 | cache CACHE for character C. If C is a multibyte character, |
0badc114 KH |
6054 | BASE_FACE is a face that has the same attributes. Otherwise, |
6055 | BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an | |
6056 | ID of face to remove before caching the new face. Value is a | |
6057 | pointer to the newly created realized face. */ | |
82641697 GM |
6058 | |
6059 | static struct face * | |
39506348 KH |
6060 | realize_face (cache, attrs, c, base_face, former_face_id) |
6061 | struct face_cache *cache; | |
82641697 | 6062 | Lisp_Object *attrs; |
39506348 KH |
6063 | int c; |
6064 | struct face *base_face; | |
6065 | int former_face_id; | |
82641697 GM |
6066 | { |
6067 | struct face *face; | |
178c5d9c | 6068 | |
82641697 | 6069 | /* LFACE must be fully specified. */ |
39506348 | 6070 | xassert (cache != NULL); |
82641697 GM |
6071 | check_lface_attrs (attrs); |
6072 | ||
39506348 KH |
6073 | if (former_face_id >= 0 && cache->used > former_face_id) |
6074 | { | |
6075 | /* Remove the former face. */ | |
6076 | struct face *former_face = cache->faces_by_id[former_face_id]; | |
6077 | uncache_face (cache, former_face); | |
6078 | free_realized_face (cache->f, former_face); | |
6079 | } | |
6080 | ||
6081 | if (FRAME_WINDOW_P (cache->f)) | |
6082 | face = realize_x_face (cache, attrs, c, base_face); | |
6083 | else if (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)) | |
6084 | face = realize_tty_face (cache, attrs, c); | |
82641697 GM |
6085 | else |
6086 | abort (); | |
6087 | ||
39506348 KH |
6088 | /* Insert the new face. */ |
6089 | cache_face (cache, face, lface_hash (attrs)); | |
6090 | #ifdef HAVE_WINDOW_SYSTEM | |
192cb6cf | 6091 | if (FRAME_WINDOW_P (cache->f) && face->font == NULL) |
39506348 KH |
6092 | load_face_font (cache->f, face, c); |
6093 | #endif /* HAVE_WINDOW_SYSTEM */ | |
82641697 GM |
6094 | return face; |
6095 | } | |
6096 | ||
6097 | ||
6098 | /* Realize the fully-specified face with attributes ATTRS in face | |
39506348 | 6099 | cache CACHE for character C. Do it for X frame CACHE->f. If C is |
0badc114 KH |
6100 | a multibyte character, BASE_FACE is a face that has the same |
6101 | attributes. Otherwise, BASE_FACE is ignored. If the new face | |
6102 | doesn't share font with the default face, a fontname is allocated | |
6103 | from the heap and set in `font_name' of the new face, but it is not | |
6104 | yet loaded here. Value is a pointer to the newly created realized | |
6105 | face. */ | |
82641697 GM |
6106 | |
6107 | static struct face * | |
39506348 KH |
6108 | realize_x_face (cache, attrs, c, base_face) |
6109 | struct face_cache *cache; | |
82641697 | 6110 | Lisp_Object *attrs; |
39506348 KH |
6111 | int c; |
6112 | struct face *base_face; | |
82641697 | 6113 | { |
c3cee013 | 6114 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6115 | struct face *face, *default_face; |
78d2079c | 6116 | struct frame *f; |
82641697 | 6117 | Lisp_Object stipple, overline, strike_through, box; |
82641697 | 6118 | |
39506348 KH |
6119 | xassert (FRAME_WINDOW_P (cache->f)); |
6120 | xassert (SINGLE_BYTE_CHAR_P (c) | |
0badc114 | 6121 | || base_face); |
82641697 GM |
6122 | |
6123 | /* Allocate a new realized face. */ | |
39506348 KH |
6124 | face = make_realized_face (attrs); |
6125 | ||
6126 | f = cache->f; | |
6127 | ||
6128 | /* If C is a multibyte character, we share all face attirbutes with | |
6129 | BASE_FACE including the realized fontset. But, we must load a | |
6130 | different font. */ | |
6131 | if (!SINGLE_BYTE_CHAR_P (c)) | |
6132 | { | |
6133 | bcopy (base_face, face, sizeof *face); | |
6134 | face->gc = 0; | |
e911049b GM |
6135 | |
6136 | /* Don't try to free the colors copied bitwise from BASE_FACE. */ | |
6137 | face->foreground_defaulted_p = 1; | |
6138 | face->background_defaulted_p = 1; | |
178c5d9c | 6139 | face->underline_defaulted_p = 1; |
e911049b GM |
6140 | face->overline_color_defaulted_p = 1; |
6141 | face->strike_through_color_defaulted_p = 1; | |
6142 | face->box_color_defaulted_p = 1; | |
178c5d9c | 6143 | |
e911049b GM |
6144 | /* to force realize_face to load font */ |
6145 | face->font = NULL; | |
39506348 KH |
6146 | return face; |
6147 | } | |
6148 | ||
6149 | /* Now we are realizing a face for ASCII (and unibyte) characters. */ | |
82641697 GM |
6150 | |
6151 | /* Determine the font to use. Most of the time, the font will be | |
6152 | the same as the font of the default face, so try that first. */ | |
6153 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6154 | if (default_face | |
39506348 | 6155 | && FACE_SUITABLE_FOR_CHAR_P (default_face, c) |
82641697 GM |
6156 | && lface_same_font_attributes_p (default_face->lface, attrs)) |
6157 | { | |
6158 | face->font = default_face->font; | |
6159 | face->fontset = default_face->fontset; | |
6160 | face->font_info_id = default_face->font_info_id; | |
6161 | face->font_name = default_face->font_name; | |
39506348 | 6162 | face->ascii_face = face; |
82641697 | 6163 | |
39506348 KH |
6164 | /* But, as we can't share the fontset, make a new realized |
6165 | fontset that has the same base fontset as of the default | |
6166 | face. */ | |
6167 | face->fontset | |
6168 | = make_fontset_for_ascii_face (f, default_face->fontset); | |
82641697 GM |
6169 | } |
6170 | else | |
6171 | { | |
39506348 | 6172 | /* If the face attribute ATTRS specifies a fontset, use it as |
fc8c4797 KH |
6173 | the base of a new realized fontset. Otherwise, use the same |
6174 | base fontset as of the default face. The base determines | |
6175 | registry and encoding of a font. It may also determine | |
6176 | foundry and family. The other fields of font name pattern | |
6177 | are constructed from ATTRS. */ | |
6178 | int fontset = face_fontset (attrs); | |
6179 | ||
178c5d9c | 6180 | if ((fontset == -1) && default_face) |
fc8c4797 KH |
6181 | fontset = default_face->fontset; |
6182 | face->fontset = make_fontset_for_ascii_face (f, fontset); | |
39506348 | 6183 | face->font = NULL; /* to force realize_face to load font */ |
82641697 GM |
6184 | } |
6185 | ||
6186 | /* Load colors, and set remaining attributes. */ | |
178c5d9c | 6187 | |
82641697 | 6188 | load_face_colors (f, face, attrs); |
660ed669 | 6189 | |
82641697 GM |
6190 | /* Set up box. */ |
6191 | box = attrs[LFACE_BOX_INDEX]; | |
6192 | if (STRINGP (box)) | |
cb637678 | 6193 | { |
82641697 GM |
6194 | /* A simple box of line width 1 drawn in color given by |
6195 | the string. */ | |
6196 | face->box_color = load_color (f, face, attrs[LFACE_BOX_INDEX], | |
6197 | LFACE_BOX_INDEX); | |
6198 | face->box = FACE_SIMPLE_BOX; | |
6199 | face->box_line_width = 1; | |
cb637678 | 6200 | } |
82641697 | 6201 | else if (INTEGERP (box)) |
42120bc7 | 6202 | { |
82641697 GM |
6203 | /* Simple box of specified line width in foreground color of the |
6204 | face. */ | |
6205 | xassert (XINT (box) > 0); | |
6206 | face->box = FACE_SIMPLE_BOX; | |
6207 | face->box_line_width = XFASTINT (box); | |
6208 | face->box_color = face->foreground; | |
6209 | face->box_color_defaulted_p = 1; | |
6210 | } | |
6211 | else if (CONSP (box)) | |
6212 | { | |
6213 | /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW | |
6214 | being one of `raised' or `sunken'. */ | |
6215 | face->box = FACE_SIMPLE_BOX; | |
6216 | face->box_color = face->foreground; | |
6217 | face->box_color_defaulted_p = 1; | |
6218 | face->box_line_width = 1; | |
6219 | ||
6220 | while (CONSP (box)) | |
42120bc7 | 6221 | { |
82641697 GM |
6222 | Lisp_Object keyword, value; |
6223 | ||
6224 | keyword = XCAR (box); | |
6225 | box = XCDR (box); | |
6226 | ||
6227 | if (!CONSP (box)) | |
6228 | break; | |
6229 | value = XCAR (box); | |
6230 | box = XCDR (box); | |
6231 | ||
6232 | if (EQ (keyword, QCline_width)) | |
6233 | { | |
6234 | if (INTEGERP (value) && XINT (value) > 0) | |
6235 | face->box_line_width = XFASTINT (value); | |
6236 | } | |
6237 | else if (EQ (keyword, QCcolor)) | |
6238 | { | |
6239 | if (STRINGP (value)) | |
6240 | { | |
6241 | face->box_color = load_color (f, face, value, | |
6242 | LFACE_BOX_INDEX); | |
6243 | face->use_box_color_for_shadows_p = 1; | |
6244 | } | |
6245 | } | |
6246 | else if (EQ (keyword, QCstyle)) | |
a8517066 | 6247 | { |
82641697 GM |
6248 | if (EQ (value, Qreleased_button)) |
6249 | face->box = FACE_RAISED_BOX; | |
6250 | else if (EQ (value, Qpressed_button)) | |
6251 | face->box = FACE_SUNKEN_BOX; | |
a8517066 | 6252 | } |
42120bc7 RS |
6253 | } |
6254 | } | |
195f798e | 6255 | |
82641697 | 6256 | /* Text underline, overline, strike-through. */ |
178c5d9c | 6257 | |
82641697 | 6258 | if (EQ (attrs[LFACE_UNDERLINE_INDEX], Qt)) |
178c5d9c | 6259 | { |
82641697 GM |
6260 | /* Use default color (same as foreground color). */ |
6261 | face->underline_p = 1; | |
6262 | face->underline_defaulted_p = 1; | |
6263 | face->underline_color = 0; | |
6264 | } | |
6265 | else if (STRINGP (attrs[LFACE_UNDERLINE_INDEX])) | |
195f798e | 6266 | { |
82641697 GM |
6267 | /* Use specified color. */ |
6268 | face->underline_p = 1; | |
6269 | face->underline_defaulted_p = 0; | |
6270 | face->underline_color | |
6271 | = load_color (f, face, attrs[LFACE_UNDERLINE_INDEX], | |
6272 | LFACE_UNDERLINE_INDEX); | |
195f798e | 6273 | } |
82641697 | 6274 | else if (NILP (attrs[LFACE_UNDERLINE_INDEX])) |
7b00de84 | 6275 | { |
82641697 GM |
6276 | face->underline_p = 0; |
6277 | face->underline_defaulted_p = 0; | |
6278 | face->underline_color = 0; | |
7b00de84 JB |
6279 | } |
6280 | ||
82641697 GM |
6281 | overline = attrs[LFACE_OVERLINE_INDEX]; |
6282 | if (STRINGP (overline)) | |
cb637678 | 6283 | { |
82641697 GM |
6284 | face->overline_color |
6285 | = load_color (f, face, attrs[LFACE_OVERLINE_INDEX], | |
6286 | LFACE_OVERLINE_INDEX); | |
6287 | face->overline_p = 1; | |
cb637678 | 6288 | } |
82641697 | 6289 | else if (EQ (overline, Qt)) |
cb637678 | 6290 | { |
82641697 GM |
6291 | face->overline_color = face->foreground; |
6292 | face->overline_color_defaulted_p = 1; | |
6293 | face->overline_p = 1; | |
cb637678 JB |
6294 | } |
6295 | ||
82641697 GM |
6296 | strike_through = attrs[LFACE_STRIKE_THROUGH_INDEX]; |
6297 | if (STRINGP (strike_through)) | |
6298 | { | |
6299 | face->strike_through_color | |
6300 | = load_color (f, face, attrs[LFACE_STRIKE_THROUGH_INDEX], | |
6301 | LFACE_STRIKE_THROUGH_INDEX); | |
6302 | face->strike_through_p = 1; | |
6303 | } | |
6304 | else if (EQ (strike_through, Qt)) | |
6305 | { | |
6306 | face->strike_through_color = face->foreground; | |
6307 | face->strike_through_color_defaulted_p = 1; | |
6308 | face->strike_through_p = 1; | |
6309 | } | |
867dd159 | 6310 | |
82641697 GM |
6311 | stipple = attrs[LFACE_STIPPLE_INDEX]; |
6312 | if (!NILP (stipple)) | |
6313 | face->stipple = load_pixmap (f, stipple, &face->pixmap_w, &face->pixmap_h); | |
660ed669 | 6314 | |
39506348 | 6315 | xassert (FACE_SUITABLE_FOR_CHAR_P (face, c)); |
82641697 | 6316 | return face; |
c3cee013 | 6317 | #endif /* HAVE_WINDOW_SYSTEM */ |
660ed669 JB |
6318 | } |
6319 | ||
729425b1 | 6320 | |
ae4b4ba5 GM |
6321 | /* Map a specified color of face FACE on frame F to a tty color index. |
6322 | IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and | |
6323 | specifies which color to map. Set *DEFAULTED to 1 if mapping to the | |
6324 | default foreground/background colors. */ | |
6325 | ||
6326 | static void | |
6327 | map_tty_color (f, face, idx, defaulted) | |
6328 | struct frame *f; | |
6329 | struct face *face; | |
6330 | enum lface_attribute_index idx; | |
6331 | int *defaulted; | |
6332 | { | |
6333 | Lisp_Object frame, color, def; | |
6334 | int foreground_p = idx == LFACE_FOREGROUND_INDEX; | |
6335 | unsigned long default_pixel, default_other_pixel, pixel; | |
6336 | ||
6337 | xassert (idx == LFACE_FOREGROUND_INDEX || idx == LFACE_BACKGROUND_INDEX); | |
6338 | ||
6339 | if (foreground_p) | |
6340 | { | |
6341 | pixel = default_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6342 | default_other_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6343 | } | |
6344 | else | |
6345 | { | |
6346 | pixel = default_pixel = FACE_TTY_DEFAULT_BG_COLOR; | |
6347 | default_other_pixel = FACE_TTY_DEFAULT_FG_COLOR; | |
6348 | } | |
6349 | ||
6350 | XSETFRAME (frame, f); | |
6351 | color = face->lface[idx]; | |
6352 | ||
6353 | if (STRINGP (color) | |
6354 | && XSTRING (color)->size | |
6355 | && CONSP (Vtty_defined_color_alist) | |
6356 | && (def = assq_no_quit (color, call1 (Qtty_color_alist, frame)), | |
6357 | CONSP (def))) | |
6358 | { | |
6359 | /* Associations in tty-defined-color-alist are of the form | |
6360 | (NAME INDEX R G B). We need the INDEX part. */ | |
6361 | pixel = XINT (XCAR (XCDR (def))); | |
6362 | } | |
6363 | ||
6364 | if (pixel == default_pixel && STRINGP (color)) | |
6365 | { | |
6366 | pixel = load_color (f, face, color, idx); | |
6367 | ||
6368 | #if defined (MSDOS) || defined (WINDOWSNT) | |
6369 | /* If the foreground of the default face is the default color, | |
6370 | use the foreground color defined by the frame. */ | |
6371 | #ifdef MSDOS | |
6372 | if (FRAME_MSDOS_P (f)) | |
6373 | { | |
6374 | #endif /* MSDOS */ | |
6375 | if (pixel == default_pixel | |
6376 | || pixel == FACE_TTY_DEFAULT_COLOR) | |
6377 | { | |
6378 | if (foreground_p) | |
6379 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6380 | else | |
6381 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6382 | face->lface[idx] = tty_color_name (f, pixel); | |
6383 | *defaulted = 1; | |
6384 | } | |
6385 | else if (pixel == default_other_pixel) | |
6386 | { | |
6387 | if (foreground_p) | |
6388 | pixel = FRAME_BACKGROUND_PIXEL (f); | |
6389 | else | |
6390 | pixel = FRAME_FOREGROUND_PIXEL (f); | |
6391 | face->lface[idx] = tty_color_name (f, pixel); | |
6392 | *defaulted = 1; | |
6393 | } | |
6394 | #ifdef MSDOS | |
6395 | } | |
6396 | #endif | |
6397 | #endif /* MSDOS or WINDOWSNT */ | |
6398 | } | |
6399 | ||
6400 | if (foreground_p) | |
6401 | face->foreground = pixel; | |
6402 | else | |
6403 | face->background = pixel; | |
6404 | } | |
6405 | ||
6406 | ||
82641697 | 6407 | /* Realize the fully-specified face with attributes ATTRS in face |
39506348 KH |
6408 | cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a |
6409 | pointer to the newly created realized face. */ | |
a8517066 | 6410 | |
82641697 | 6411 | static struct face * |
39506348 KH |
6412 | realize_tty_face (cache, attrs, c) |
6413 | struct face_cache *cache; | |
82641697 | 6414 | Lisp_Object *attrs; |
39506348 | 6415 | int c; |
82641697 GM |
6416 | { |
6417 | struct face *face; | |
6418 | int weight, slant; | |
2d764c78 | 6419 | int face_colors_defaulted = 0; |
ae4b4ba5 | 6420 | struct frame *f = cache->f; |
729425b1 | 6421 | |
82641697 | 6422 | /* Frame must be a termcap frame. */ |
39506348 | 6423 | xassert (FRAME_TERMCAP_P (cache->f) || FRAME_MSDOS_P (cache->f)); |
178c5d9c | 6424 | |
82641697 | 6425 | /* Allocate a new realized face. */ |
39506348 KH |
6426 | face = make_realized_face (attrs); |
6427 | face->font_name = FRAME_MSDOS_P (cache->f) ? "ms-dos" : "tty"; | |
82641697 | 6428 | |
178c5d9c | 6429 | /* Map face attributes to TTY appearances. We map slant to |
82641697 GM |
6430 | dimmed text because we want italic text to appear differently |
6431 | and because dimmed text is probably used infrequently. */ | |
6432 | weight = face_numeric_weight (attrs[LFACE_WEIGHT_INDEX]); | |
6433 | slant = face_numeric_slant (attrs[LFACE_SLANT_INDEX]); | |
6434 | ||
6435 | if (weight > XLFD_WEIGHT_MEDIUM) | |
6436 | face->tty_bold_p = 1; | |
6437 | if (weight < XLFD_WEIGHT_MEDIUM || slant != XLFD_SLANT_ROMAN) | |
6438 | face->tty_dim_p = 1; | |
6439 | if (!NILP (attrs[LFACE_UNDERLINE_INDEX])) | |
6440 | face->tty_underline_p = 1; | |
6441 | if (!NILP (attrs[LFACE_INVERSE_INDEX])) | |
6442 | face->tty_reverse_p = 1; | |
6443 | ||
6444 | /* Map color names to color indices. */ | |
ae4b4ba5 GM |
6445 | map_tty_color (f, face, LFACE_FOREGROUND_INDEX, &face_colors_defaulted); |
6446 | map_tty_color (f, face, LFACE_BACKGROUND_INDEX, &face_colors_defaulted); | |
6447 | ||
2d764c78 EZ |
6448 | /* Swap colors if face is inverse-video. If the colors are taken |
6449 | from the frame colors, they are already inverted, since the | |
6450 | frame-creation function calls x-handle-reverse-video. */ | |
6451 | if (face->tty_reverse_p && !face_colors_defaulted) | |
44747bd0 EZ |
6452 | { |
6453 | unsigned long tem = face->foreground; | |
44747bd0 EZ |
6454 | face->foreground = face->background; |
6455 | face->background = tem; | |
6456 | } | |
44747bd0 | 6457 | |
a4a76b61 GM |
6458 | if (tty_suppress_bold_inverse_default_colors_p |
6459 | && face->tty_bold_p | |
6460 | && face->background == FACE_TTY_DEFAULT_FG_COLOR | |
6461 | && face->foreground == FACE_TTY_DEFAULT_BG_COLOR) | |
6462 | face->tty_bold_p = 0; | |
6463 | ||
82641697 | 6464 | return face; |
729425b1 | 6465 | } |
867dd159 | 6466 | |
82641697 | 6467 | |
a4a76b61 GM |
6468 | DEFUN ("tty-suppress-bold-inverse-default-colors", |
6469 | Ftty_suppress_bold_inverse_default_colors, | |
6470 | Stty_suppress_bold_inverse_default_colors, 1, 1, 0, | |
6471 | "Suppress/allow boldness of faces with inverse default colors.\n\ | |
6472 | SUPPRESS non-nil means suppress it.\n\ | |
1beeb7e3 GM |
6473 | This affects bold faces on TTYs whose foreground is the default background\n\ |
6474 | color of the display and whose background is the default foreground color.\n\ | |
41e757a6 GM |
6475 | For such faces, the bold face attribute is ignored if this variable\n\ |
6476 | is non-nil.") | |
a4a76b61 GM |
6477 | (suppress) |
6478 | Lisp_Object suppress; | |
6479 | { | |
6480 | tty_suppress_bold_inverse_default_colors_p = !NILP (suppress); | |
6481 | ++face_change_count; | |
6482 | return suppress; | |
6483 | } | |
6484 | ||
6485 | ||
82641697 GM |
6486 | \f |
6487 | /*********************************************************************** | |
6488 | Computing Faces | |
6489 | ***********************************************************************/ | |
6490 | ||
6491 | /* Return the ID of the face to use to display character CH with face | |
6492 | property PROP on frame F in current_buffer. */ | |
2e16580f RS |
6493 | |
6494 | int | |
82641697 | 6495 | compute_char_face (f, ch, prop) |
2e16580f | 6496 | struct frame *f; |
82641697 GM |
6497 | int ch; |
6498 | Lisp_Object prop; | |
2e16580f | 6499 | { |
82641697 | 6500 | int face_id; |
39506348 KH |
6501 | |
6502 | if (NILP (current_buffer->enable_multibyte_characters)) | |
6503 | ch = -1; | |
178c5d9c | 6504 | |
82641697 | 6505 | if (NILP (prop)) |
39506348 KH |
6506 | { |
6507 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6508 | face_id = FACE_FOR_CHAR (f, face, ch); | |
6509 | } | |
82641697 | 6510 | else |
2e16580f | 6511 | { |
82641697 GM |
6512 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
6513 | struct face *default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
6514 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6515 | merge_face_vector_with_property (f, attrs, prop); | |
39506348 | 6516 | face_id = lookup_face (f, attrs, ch, NULL); |
2e16580f RS |
6517 | } |
6518 | ||
82641697 | 6519 | return face_id; |
2e16580f | 6520 | } |
bc0db68d | 6521 | |
b349f4fb | 6522 | |
82641697 GM |
6523 | /* Return the face ID associated with buffer position POS for |
6524 | displaying ASCII characters. Return in *ENDPTR the position at | |
6525 | which a different face is needed, as far as text properties and | |
6526 | overlays are concerned. W is a window displaying current_buffer. | |
6527 | ||
6528 | REGION_BEG, REGION_END delimit the region, so it can be | |
6529 | highlighted. | |
6f134486 | 6530 | |
82641697 GM |
6531 | LIMIT is a position not to scan beyond. That is to limit the time |
6532 | this function can take. | |
6533 | ||
6534 | If MOUSE is non-zero, use the character's mouse-face, not its face. | |
6535 | ||
39506348 | 6536 | The face returned is suitable for displaying ASCII characters. */ |
bc0db68d | 6537 | |
cb637678 | 6538 | int |
82641697 GM |
6539 | face_at_buffer_position (w, pos, region_beg, region_end, |
6540 | endptr, limit, mouse) | |
f211082d | 6541 | struct window *w; |
7b7739b1 | 6542 | int pos; |
bc0db68d | 6543 | int region_beg, region_end; |
7b7739b1 | 6544 | int *endptr; |
b349f4fb | 6545 | int limit; |
6f134486 | 6546 | int mouse; |
7b7739b1 | 6547 | { |
82641697 GM |
6548 | struct frame *f = XFRAME (w->frame); |
6549 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
b6d40e46 | 6550 | Lisp_Object prop, position; |
82641697 | 6551 | int i, noverlays; |
7b7739b1 | 6552 | Lisp_Object *overlay_vec; |
f211082d | 6553 | Lisp_Object frame; |
f6b98e0b | 6554 | int endpos; |
82641697 GM |
6555 | Lisp_Object propname = mouse ? Qmouse_face : Qface; |
6556 | Lisp_Object limit1, end; | |
6557 | struct face *default_face; | |
6558 | int multibyte_p = !NILP (current_buffer->enable_multibyte_characters); | |
f6b98e0b JB |
6559 | |
6560 | /* W must display the current buffer. We could write this function | |
6561 | to use the frame and buffer of W, but right now it doesn't. */ | |
060fb5c1 | 6562 | /* xassert (XBUFFER (w->buffer) == current_buffer); */ |
f211082d | 6563 | |
ac22a6c4 | 6564 | XSETFRAME (frame, f); |
82641697 | 6565 | XSETFASTINT (position, pos); |
7b7739b1 | 6566 | |
f6b98e0b | 6567 | endpos = ZV; |
bc0db68d RS |
6568 | if (pos < region_beg && region_beg < endpos) |
6569 | endpos = region_beg; | |
f6b98e0b | 6570 | |
82641697 GM |
6571 | /* Get the `face' or `mouse_face' text property at POS, and |
6572 | determine the next position at which the property changes. */ | |
6f134486 | 6573 | prop = Fget_text_property (position, propname, w->buffer); |
82641697 GM |
6574 | XSETFASTINT (limit1, (limit < endpos ? limit : endpos)); |
6575 | end = Fnext_single_property_change (position, propname, w->buffer, limit1); | |
6576 | if (INTEGERP (end)) | |
6577 | endpos = XINT (end); | |
6f134486 | 6578 | |
82641697 | 6579 | /* Look at properties from overlays. */ |
b6d40e46 | 6580 | { |
f6b98e0b | 6581 | int next_overlay; |
9516fe94 RS |
6582 | int len; |
6583 | ||
6584 | /* First try with room for 40 overlays. */ | |
6585 | len = 40; | |
6586 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
7af31819 | 6587 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6588 | &next_overlay, NULL, 0); |
9516fe94 | 6589 | |
82641697 GM |
6590 | /* If there are more than 40, make enough space for all, and try |
6591 | again. */ | |
9516fe94 RS |
6592 | if (noverlays > len) |
6593 | { | |
6594 | len = noverlays; | |
6595 | overlay_vec = (Lisp_Object *) alloca (len * sizeof (Lisp_Object)); | |
82277c2f | 6596 | noverlays = overlays_at (pos, 0, &overlay_vec, &len, |
565c8641 | 6597 | &next_overlay, NULL, 0); |
9516fe94 | 6598 | } |
b6d40e46 | 6599 | |
f6b98e0b JB |
6600 | if (next_overlay < endpos) |
6601 | endpos = next_overlay; | |
b6d40e46 JB |
6602 | } |
6603 | ||
6604 | *endptr = endpos; | |
7b7739b1 | 6605 | |
82641697 | 6606 | default_face = FACE_FROM_ID (f, DEFAULT_FACE_ID); |
178c5d9c | 6607 | |
82641697 GM |
6608 | /* Optimize common cases where we can use the default face. */ |
6609 | if (noverlays == 0 | |
6610 | && NILP (prop) | |
39506348 | 6611 | && !(pos >= region_beg && pos < region_end)) |
82641697 GM |
6612 | return DEFAULT_FACE_ID; |
6613 | ||
6614 | /* Begin with attributes from the default face. */ | |
6615 | bcopy (default_face->lface, attrs, sizeof attrs); | |
6616 | ||
6617 | /* Merge in attributes specified via text properties. */ | |
6618 | if (!NILP (prop)) | |
6619 | merge_face_vector_with_property (f, attrs, prop); | |
6620 | ||
6621 | /* Now merge the overlay data. */ | |
18195655 | 6622 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
18195655 | 6623 | for (i = 0; i < noverlays; i++) |
4699e6d2 | 6624 | { |
18195655 RS |
6625 | Lisp_Object oend; |
6626 | int oendpos; | |
6627 | ||
6628 | prop = Foverlay_get (overlay_vec[i], propname); | |
82641697 GM |
6629 | if (!NILP (prop)) |
6630 | merge_face_vector_with_property (f, attrs, prop); | |
18195655 RS |
6631 | |
6632 | oend = OVERLAY_END (overlay_vec[i]); | |
6633 | oendpos = OVERLAY_POSITION (oend); | |
6634 | if (oendpos < endpos) | |
6635 | endpos = oendpos; | |
6636 | } | |
6637 | ||
82641697 | 6638 | /* If in the region, merge in the region face. */ |
18195655 RS |
6639 | if (pos >= region_beg && pos < region_end) |
6640 | { | |
82641697 | 6641 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6642 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
178c5d9c | 6643 | |
18195655 RS |
6644 | if (region_end < endpos) |
6645 | endpos = region_end; | |
18195655 RS |
6646 | } |
6647 | ||
6648 | *endptr = endpos; | |
6649 | ||
82641697 | 6650 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6651 | or realize a new one for ASCII characters. */ |
6652 | return lookup_face (f, attrs, 0, NULL); | |
18195655 RS |
6653 | } |
6654 | ||
60573a90 | 6655 | |
82641697 | 6656 | /* Compute the face at character position POS in Lisp string STRING on |
39506348 | 6657 | window W, for ASCII characters. |
7b7739b1 | 6658 | |
82641697 GM |
6659 | If STRING is an overlay string, it comes from position BUFPOS in |
6660 | current_buffer, otherwise BUFPOS is zero to indicate that STRING is | |
6661 | not an overlay string. W must display the current buffer. | |
6662 | REGION_BEG and REGION_END give the start and end positions of the | |
6663 | region; both are -1 if no region is visible. BASE_FACE_ID is the | |
6664 | id of the basic face to merge with. It is usually equal to | |
045dee35 | 6665 | DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID |
82641697 | 6666 | for strings displayed in the mode or top line. |
178c5d9c | 6667 | |
82641697 GM |
6668 | Set *ENDPTR to the next position where to check for faces in |
6669 | STRING; -1 if the face is constant from POS to the end of the | |
6670 | string. | |
18195655 | 6671 | |
82641697 | 6672 | Value is the id of the face to use. The face returned is suitable |
39506348 | 6673 | for displaying ASCII characters. */ |
fffc2367 | 6674 | |
82641697 GM |
6675 | int |
6676 | face_at_string_position (w, string, pos, bufpos, region_beg, | |
6677 | region_end, endptr, base_face_id) | |
6678 | struct window *w; | |
6679 | Lisp_Object string; | |
6680 | int pos, bufpos; | |
6681 | int region_beg, region_end; | |
6682 | int *endptr; | |
6683 | enum face_id base_face_id; | |
660ed669 | 6684 | { |
82641697 GM |
6685 | Lisp_Object prop, position, end, limit; |
6686 | struct frame *f = XFRAME (WINDOW_FRAME (w)); | |
6687 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; | |
6688 | struct face *base_face; | |
6689 | int multibyte_p = STRING_MULTIBYTE (string); | |
6690 | ||
6691 | /* Get the value of the face property at the current position within | |
6692 | STRING. Value is nil if there is no face property. */ | |
6693 | XSETFASTINT (position, pos); | |
6694 | prop = Fget_text_property (position, Qface, string); | |
6695 | ||
6696 | /* Get the next position at which to check for faces. Value of end | |
6697 | is nil if face is constant all the way to the end of the string. | |
6698 | Otherwise it is a string position where to check faces next. | |
6699 | Limit is the maximum position up to which to check for property | |
6700 | changes in Fnext_single_property_change. Strings are usually | |
6701 | short, so set the limit to the end of the string. */ | |
6702 | XSETFASTINT (limit, XSTRING (string)->size); | |
6703 | end = Fnext_single_property_change (position, Qface, string, limit); | |
6704 | if (INTEGERP (end)) | |
6705 | *endptr = XFASTINT (end); | |
6706 | else | |
6707 | *endptr = -1; | |
6708 | ||
6709 | base_face = FACE_FROM_ID (f, base_face_id); | |
6710 | xassert (base_face); | |
6711 | ||
6712 | /* Optimize the default case that there is no face property and we | |
6713 | are not in the region. */ | |
6714 | if (NILP (prop) | |
6715 | && (base_face_id != DEFAULT_FACE_ID | |
6716 | /* BUFPOS <= 0 means STRING is not an overlay string, so | |
6717 | that the region doesn't have to be taken into account. */ | |
6718 | || bufpos <= 0 | |
6719 | || bufpos < region_beg | |
6720 | || bufpos >= region_end) | |
6721 | && (multibyte_p | |
6722 | /* We can't realize faces for different charsets differently | |
6723 | if we don't have fonts, so we can stop here if not working | |
6724 | on a window-system frame. */ | |
6725 | || !FRAME_WINDOW_P (f) | |
39506348 | 6726 | || FACE_SUITABLE_FOR_CHAR_P (base_face, 0))) |
82641697 GM |
6727 | return base_face->id; |
6728 | ||
6729 | /* Begin with attributes from the base face. */ | |
6730 | bcopy (base_face->lface, attrs, sizeof attrs); | |
6731 | ||
6732 | /* Merge in attributes specified via text properties. */ | |
6733 | if (!NILP (prop)) | |
6734 | merge_face_vector_with_property (f, attrs, prop); | |
6735 | ||
6736 | /* If in the region, merge in the region face. */ | |
6737 | if (bufpos | |
6738 | && bufpos >= region_beg | |
6739 | && bufpos < region_end) | |
a8517066 | 6740 | { |
82641697 | 6741 | Lisp_Object region_face = lface_from_face_name (f, Qregion, 0); |
2c20458f | 6742 | merge_face_vectors (f, XVECTOR (region_face)->contents, attrs, Qnil); |
a8517066 | 6743 | } |
660ed669 | 6744 | |
82641697 | 6745 | /* Look up a realized face with the given face attributes, |
39506348 KH |
6746 | or realize a new one for ASCII characters. */ |
6747 | return lookup_face (f, attrs, 0, NULL); | |
660ed669 JB |
6748 | } |
6749 | ||
6750 | ||
c115973b | 6751 | \f |
82641697 GM |
6752 | /*********************************************************************** |
6753 | Tests | |
6754 | ***********************************************************************/ | |
c115973b | 6755 | |
82641697 | 6756 | #if GLYPH_DEBUG |
c115973b | 6757 | |
82641697 | 6758 | /* Print the contents of the realized face FACE to stderr. */ |
c115973b | 6759 | |
82641697 GM |
6760 | static void |
6761 | dump_realized_face (face) | |
6762 | struct face *face; | |
6763 | { | |
6764 | fprintf (stderr, "ID: %d\n", face->id); | |
6765 | #ifdef HAVE_X_WINDOWS | |
6766 | fprintf (stderr, "gc: %d\n", (int) face->gc); | |
6767 | #endif | |
6768 | fprintf (stderr, "foreground: 0x%lx (%s)\n", | |
6769 | face->foreground, | |
6770 | XSTRING (face->lface[LFACE_FOREGROUND_INDEX])->data); | |
6771 | fprintf (stderr, "background: 0x%lx (%s)\n", | |
6772 | face->background, | |
6773 | XSTRING (face->lface[LFACE_BACKGROUND_INDEX])->data); | |
6774 | fprintf (stderr, "font_name: %s (%s)\n", | |
6775 | face->font_name, | |
6776 | XSTRING (face->lface[LFACE_FAMILY_INDEX])->data); | |
6777 | #ifdef HAVE_X_WINDOWS | |
6778 | fprintf (stderr, "font = %p\n", face->font); | |
6779 | #endif | |
6780 | fprintf (stderr, "font_info_id = %d\n", face->font_info_id); | |
6781 | fprintf (stderr, "fontset: %d\n", face->fontset); | |
6782 | fprintf (stderr, "underline: %d (%s)\n", | |
6783 | face->underline_p, | |
6784 | XSTRING (Fsymbol_name (face->lface[LFACE_UNDERLINE_INDEX]))->data); | |
6785 | fprintf (stderr, "hash: %d\n", face->hash); | |
6786 | fprintf (stderr, "charset: %d\n", face->charset); | |
c115973b JB |
6787 | } |
6788 | ||
6789 | ||
82641697 GM |
6790 | DEFUN ("dump-face", Fdump_face, Sdump_face, 0, 1, 0, "") |
6791 | (n) | |
6792 | Lisp_Object n; | |
c115973b | 6793 | { |
82641697 | 6794 | if (NILP (n)) |
c115973b | 6795 | { |
82641697 | 6796 | int i; |
178c5d9c | 6797 | |
82641697 GM |
6798 | fprintf (stderr, "font selection order: "); |
6799 | for (i = 0; i < DIM (font_sort_order); ++i) | |
6800 | fprintf (stderr, "%d ", font_sort_order[i]); | |
6801 | fprintf (stderr, "\n"); | |
6802 | ||
6803 | fprintf (stderr, "alternative fonts: "); | |
6804 | debug_print (Vface_alternative_font_family_alist); | |
6805 | fprintf (stderr, "\n"); | |
178c5d9c | 6806 | |
c0617987 | 6807 | for (i = 0; i < FRAME_FACE_CACHE (SELECTED_FRAME ())->used; ++i) |
82641697 | 6808 | Fdump_face (make_number (i)); |
c115973b JB |
6809 | } |
6810 | else | |
f5e278c7 | 6811 | { |
82641697 GM |
6812 | struct face *face; |
6813 | CHECK_NUMBER (n, 0); | |
c0617987 | 6814 | face = FACE_FROM_ID (SELECTED_FRAME (), XINT (n)); |
82641697 GM |
6815 | if (face == NULL) |
6816 | error ("Not a valid face"); | |
6817 | dump_realized_face (face); | |
f5e278c7 | 6818 | } |
178c5d9c | 6819 | |
c115973b JB |
6820 | return Qnil; |
6821 | } | |
b5c53576 | 6822 | |
b5c53576 | 6823 | |
82641697 GM |
6824 | DEFUN ("show-face-resources", Fshow_face_resources, Sshow_face_resources, |
6825 | 0, 0, 0, "") | |
6826 | () | |
b5c53576 | 6827 | { |
82641697 GM |
6828 | fprintf (stderr, "number of colors = %d\n", ncolors_allocated); |
6829 | fprintf (stderr, "number of pixmaps = %d\n", npixmaps_allocated); | |
6830 | fprintf (stderr, "number of GCs = %d\n", ngcs); | |
6831 | return Qnil; | |
b5c53576 RS |
6832 | } |
6833 | ||
82641697 GM |
6834 | #endif /* GLYPH_DEBUG != 0 */ |
6835 | ||
b5c53576 | 6836 | |
c115973b | 6837 | \f |
82641697 GM |
6838 | /*********************************************************************** |
6839 | Initialization | |
6840 | ***********************************************************************/ | |
cb637678 | 6841 | |
c115973b | 6842 | void |
f211082d | 6843 | syms_of_xfaces () |
c115973b | 6844 | { |
f211082d JB |
6845 | Qface = intern ("face"); |
6846 | staticpro (&Qface); | |
fef04523 GM |
6847 | Qbitmap_spec_p = intern ("bitmap-spec-p"); |
6848 | staticpro (&Qbitmap_spec_p); | |
92610620 GM |
6849 | Qframe_update_face_colors = intern ("frame-update-face-colors"); |
6850 | staticpro (&Qframe_update_face_colors); | |
178c5d9c | 6851 | |
82641697 GM |
6852 | /* Lisp face attribute keywords. */ |
6853 | QCfamily = intern (":family"); | |
6854 | staticpro (&QCfamily); | |
6855 | QCheight = intern (":height"); | |
6856 | staticpro (&QCheight); | |
6857 | QCweight = intern (":weight"); | |
6858 | staticpro (&QCweight); | |
6859 | QCslant = intern (":slant"); | |
6860 | staticpro (&QCslant); | |
6861 | QCunderline = intern (":underline"); | |
6862 | staticpro (&QCunderline); | |
6863 | QCinverse_video = intern (":inverse-video"); | |
178c5d9c | 6864 | staticpro (&QCinverse_video); |
82641697 GM |
6865 | QCreverse_video = intern (":reverse-video"); |
6866 | staticpro (&QCreverse_video); | |
6867 | QCforeground = intern (":foreground"); | |
6868 | staticpro (&QCforeground); | |
6869 | QCbackground = intern (":background"); | |
6870 | staticpro (&QCbackground); | |
6871 | QCstipple = intern (":stipple");; | |
6872 | staticpro (&QCstipple); | |
6873 | QCwidth = intern (":width"); | |
6874 | staticpro (&QCwidth); | |
6875 | QCfont = intern (":font"); | |
6876 | staticpro (&QCfont); | |
6877 | QCbold = intern (":bold"); | |
6878 | staticpro (&QCbold); | |
6879 | QCitalic = intern (":italic"); | |
6880 | staticpro (&QCitalic); | |
6881 | QCoverline = intern (":overline"); | |
6882 | staticpro (&QCoverline); | |
6883 | QCstrike_through = intern (":strike-through"); | |
6884 | staticpro (&QCstrike_through); | |
6885 | QCbox = intern (":box"); | |
6886 | staticpro (&QCbox); | |
2c20458f MB |
6887 | QCinherit = intern (":inherit"); |
6888 | staticpro (&QCinherit); | |
82641697 GM |
6889 | |
6890 | /* Symbols used for Lisp face attribute values. */ | |
6891 | QCcolor = intern (":color"); | |
6892 | staticpro (&QCcolor); | |
6893 | QCline_width = intern (":line-width"); | |
6894 | staticpro (&QCline_width); | |
6895 | QCstyle = intern (":style"); | |
6896 | staticpro (&QCstyle); | |
6897 | Qreleased_button = intern ("released-button"); | |
6898 | staticpro (&Qreleased_button); | |
6899 | Qpressed_button = intern ("pressed-button"); | |
6900 | staticpro (&Qpressed_button); | |
6901 | Qnormal = intern ("normal"); | |
6902 | staticpro (&Qnormal); | |
6903 | Qultra_light = intern ("ultra-light"); | |
6904 | staticpro (&Qultra_light); | |
6905 | Qextra_light = intern ("extra-light"); | |
6906 | staticpro (&Qextra_light); | |
6907 | Qlight = intern ("light"); | |
6908 | staticpro (&Qlight); | |
6909 | Qsemi_light = intern ("semi-light"); | |
6910 | staticpro (&Qsemi_light); | |
6911 | Qsemi_bold = intern ("semi-bold"); | |
6912 | staticpro (&Qsemi_bold); | |
6913 | Qbold = intern ("bold"); | |
6914 | staticpro (&Qbold); | |
6915 | Qextra_bold = intern ("extra-bold"); | |
6916 | staticpro (&Qextra_bold); | |
6917 | Qultra_bold = intern ("ultra-bold"); | |
6918 | staticpro (&Qultra_bold); | |
6919 | Qoblique = intern ("oblique"); | |
6920 | staticpro (&Qoblique); | |
6921 | Qitalic = intern ("italic"); | |
6922 | staticpro (&Qitalic); | |
6923 | Qreverse_oblique = intern ("reverse-oblique"); | |
6924 | staticpro (&Qreverse_oblique); | |
6925 | Qreverse_italic = intern ("reverse-italic"); | |
6926 | staticpro (&Qreverse_italic); | |
6927 | Qultra_condensed = intern ("ultra-condensed"); | |
6928 | staticpro (&Qultra_condensed); | |
6929 | Qextra_condensed = intern ("extra-condensed"); | |
6930 | staticpro (&Qextra_condensed); | |
6931 | Qcondensed = intern ("condensed"); | |
6932 | staticpro (&Qcondensed); | |
6933 | Qsemi_condensed = intern ("semi-condensed"); | |
6934 | staticpro (&Qsemi_condensed); | |
6935 | Qsemi_expanded = intern ("semi-expanded"); | |
6936 | staticpro (&Qsemi_expanded); | |
6937 | Qexpanded = intern ("expanded"); | |
6938 | staticpro (&Qexpanded); | |
6939 | Qextra_expanded = intern ("extra-expanded"); | |
6940 | staticpro (&Qextra_expanded); | |
6941 | Qultra_expanded = intern ("ultra-expanded"); | |
6942 | staticpro (&Qultra_expanded); | |
6943 | Qbackground_color = intern ("background-color"); | |
6944 | staticpro (&Qbackground_color); | |
6945 | Qforeground_color = intern ("foreground-color"); | |
6946 | staticpro (&Qforeground_color); | |
6947 | Qunspecified = intern ("unspecified"); | |
6948 | staticpro (&Qunspecified); | |
6949 | ||
92610620 GM |
6950 | Qface_alias = intern ("face-alias"); |
6951 | staticpro (&Qface_alias); | |
82641697 GM |
6952 | Qdefault = intern ("default"); |
6953 | staticpro (&Qdefault); | |
9ea173e8 GM |
6954 | Qtool_bar = intern ("tool-bar"); |
6955 | staticpro (&Qtool_bar); | |
82641697 GM |
6956 | Qregion = intern ("region"); |
6957 | staticpro (&Qregion); | |
8bd201d6 GM |
6958 | Qfringe = intern ("fringe"); |
6959 | staticpro (&Qfringe); | |
045dee35 GM |
6960 | Qheader_line = intern ("header-line"); |
6961 | staticpro (&Qheader_line); | |
8bd201d6 GM |
6962 | Qscroll_bar = intern ("scroll-bar"); |
6963 | staticpro (&Qscroll_bar); | |
c7ae3284 GM |
6964 | Qmenu = intern ("menu"); |
6965 | staticpro (&Qmenu); | |
8bd201d6 GM |
6966 | Qcursor = intern ("cursor"); |
6967 | staticpro (&Qcursor); | |
6968 | Qborder = intern ("border"); | |
6969 | staticpro (&Qborder); | |
6970 | Qmouse = intern ("mouse"); | |
6971 | staticpro (&Qmouse); | |
2d764c78 EZ |
6972 | Qtty_color_desc = intern ("tty-color-desc"); |
6973 | staticpro (&Qtty_color_desc); | |
6974 | Qtty_color_by_index = intern ("tty-color-by-index"); | |
6975 | staticpro (&Qtty_color_by_index); | |
ae4b4ba5 GM |
6976 | Qtty_color_alist = intern ("tty-color-alist"); |
6977 | staticpro (&Qtty_color_alist); | |
82641697 | 6978 | |
dbc968b8 GM |
6979 | Vparam_value_alist = Fcons (Fcons (Qnil, Qnil), Qnil); |
6980 | staticpro (&Vparam_value_alist); | |
434b9cc5 GM |
6981 | Vface_alternative_font_family_alist = Qnil; |
6982 | staticpro (&Vface_alternative_font_family_alist); | |
6983 | ||
82641697 GM |
6984 | defsubr (&Sinternal_make_lisp_face); |
6985 | defsubr (&Sinternal_lisp_face_p); | |
6986 | defsubr (&Sinternal_set_lisp_face_attribute); | |
c3cee013 | 6987 | #ifdef HAVE_WINDOW_SYSTEM |
82641697 | 6988 | defsubr (&Sinternal_set_lisp_face_attribute_from_resource); |
42608ba8 | 6989 | #endif |
ea4fa0af GM |
6990 | defsubr (&Scolor_gray_p); |
6991 | defsubr (&Scolor_supported_p); | |
82641697 GM |
6992 | defsubr (&Sinternal_get_lisp_face_attribute); |
6993 | defsubr (&Sinternal_lisp_face_attribute_values); | |
6994 | defsubr (&Sinternal_lisp_face_equal_p); | |
6995 | defsubr (&Sinternal_lisp_face_empty_p); | |
6996 | defsubr (&Sinternal_copy_lisp_face); | |
6997 | defsubr (&Sinternal_merge_in_global_face); | |
6998 | defsubr (&Sface_font); | |
6999 | defsubr (&Sframe_face_alist); | |
7000 | defsubr (&Sinternal_set_font_selection_order); | |
7001 | defsubr (&Sinternal_set_alternative_font_family_alist); | |
7002 | #if GLYPH_DEBUG | |
7003 | defsubr (&Sdump_face); | |
7004 | defsubr (&Sshow_face_resources); | |
7005 | #endif /* GLYPH_DEBUG */ | |
7006 | defsubr (&Sclear_face_cache); | |
a4a76b61 | 7007 | defsubr (&Stty_suppress_bold_inverse_default_colors); |
82641697 | 7008 | |
38426dee | 7009 | #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS |
08dc08dc GM |
7010 | defsubr (&Sdump_colors); |
7011 | #endif | |
7012 | ||
057df17c GM |
7013 | DEFVAR_LISP ("font-list-limit", &Vfont_list_limit, |
7014 | "*Limit for font matching.\n\ | |
7015 | If an integer > 0, font matching functions won't load more than\n\ | |
7016 | that number of fonts when searching for a matching font."); | |
7017 | Vfont_list_limit = make_number (DEFAULT_FONT_LIST_LIMIT); | |
7018 | ||
82641697 GM |
7019 | DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults, |
7020 | "List of global face definitions (for internal use only.)"); | |
7021 | Vface_new_frame_defaults = Qnil; | |
178c5d9c | 7022 | |
82641697 GM |
7023 | DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple, |
7024 | "*Default stipple pattern used on monochrome displays.\n\ | |
7025 | This stipple pattern is used on monochrome displays\n\ | |
7026 | instead of shades of gray for a face background color.\n\ | |
7027 | See `set-face-stipple' for possible values for this variable."); | |
7028 | Vface_default_stipple = build_string ("gray3"); | |
7029 | ||
ae4b4ba5 GM |
7030 | DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist, |
7031 | "An alist of defined terminal colors and their RGB values."); | |
7032 | Vtty_defined_color_alist = Qnil; | |
7033 | ||
82641697 GM |
7034 | DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed, |
7035 | "Allowed scalable fonts.\n\ | |
7036 | A value of nil means don't allow any scalable fonts.\n\ | |
7037 | A value of t means allow any scalable font.\n\ | |
7038 | Otherwise, value must be a list of regular expressions. A font may be\n\ | |
7039 | scaled if its name matches a regular expression in the list."); | |
c3cee013 JR |
7040 | #ifdef WINDOWSNT |
7041 | /* Windows uses mainly truetype fonts, so disallowing scalable fonts | |
7042 | by default limits the fonts available severely. */ | |
7043 | Vscalable_fonts_allowed = Qt; | |
7044 | #else | |
82641697 | 7045 | Vscalable_fonts_allowed = Qnil; |
c3cee013 | 7046 | #endif |
b5c53576 | 7047 | |
c3cee013 | 7048 | #ifdef HAVE_WINDOW_SYSTEM |
fef04523 | 7049 | defsubr (&Sbitmap_spec_p); |
82641697 GM |
7050 | defsubr (&Sx_list_fonts); |
7051 | defsubr (&Sinternal_face_x_get_resource); | |
92610620 | 7052 | defsubr (&Sx_family_fonts); |
82641697 | 7053 | defsubr (&Sx_font_family_list); |
c3cee013 | 7054 | #endif /* HAVE_WINDOW_SYSTEM */ |
c115973b | 7055 | } |