1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999 Free Software Foundation.
4 This file is part of GNU Emacs.
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
8 the Free Software Foundation; either version 2, or (at your option)
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.
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
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
25 When using Emacs with X, the display style of characters can be
26 changed by defining `faces'. Each face can specify the following
29 1. Font family or fontset alias name.
31 2. Relative proportionate width, aka character set width or set
32 width (swidth), e.g. `semi-compressed'.
34 3. Font height in 1/10pt
36 4. Font weight, e.g. `bold'.
38 5. Font slant, e.g. `italic'.
44 8. Whether or not characters should be underlined, and in what color.
46 9. Whether or not characters should be displayed in inverse video.
48 10. A background stipple, a bitmap.
50 11. Whether or not characters should be overlined, and in what color.
52 12. Whether or not characters should be strike-through, and in what
55 13. Whether or not a box should be drawn around characters, the box
56 type, and, for simple boxes, in what color.
58 Faces are frame-local by nature because Emacs allows to define the
59 same named face (face names are symbols) differently for different
60 frames. Each frame has an alist of face definitions for all named
61 faces. The value of a named face in such an alist is a Lisp vector
62 with the symbol `face' in slot 0, and a slot for each each of the
63 face attributes mentioned above.
65 There is also a global face alist `Vface_new_frame_defaults'. Face
66 definitions from this list are used to initialize faces of newly
69 A face doesn't have to specify all attributes. Those not specified
70 have a value of `unspecified'. Faces specifying all attributes are
71 called `fully-specified'.
76 The display style of a given character in the text is determined by
77 combining several faces. This process is called `face merging'.
78 Any aspect of the display style that isn't specified by overlays or
79 text properties is taken from the `default' face. Since it is made
80 sure that the default face is always fully-specified, face merging
81 always results in a fully-specified face.
86 After all face attributes for a character have been determined by
87 merging faces of that character, that face is `realized'. The
88 realization process maps face attributes to what is physically
89 available on the system where Emacs runs. The result is a
90 `realized face' in form of a struct face which is stored in the
91 face cache of the frame on which it was realized.
93 Face realization is done in the context of the charset of the
94 character to display because different fonts and encodings are used
95 for different charsets. In other words, for characters of
96 different charsets, different realized faces are needed to display
99 Except for composite characters (CHARSET_COMPOSITION), faces are
100 always realized for a specific character set and contain a specific
101 font, even if the face being realized specifies a fontset (see
102 `font selection' below). The reason is that the result of the new
103 font selection stage is better than what can be done with
104 statically defined font name patterns in fontsets.
109 In unibyte text, Emacs' charsets aren't applicable; function
110 `char-charset' reports CHARSET_ASCII for all characters, including
111 those > 0x7f. The X registry and encoding of fonts to use is
112 determined from the variable `x-unibyte-registry-and-encoding' in
113 this case. The variable is initialized at Emacs startup time from
114 the font the user specified for Emacs.
116 Currently all unibyte text, i.e. all buffers with
117 enable_multibyte_characters nil are displayed with fonts of the
118 same registry and encoding `x-unibyte-registry-and-encoding'. This
119 is consistent with the fact that languages can also be set
125 Font selection tries to find the best available matching font for a
126 given (charset, face) combination. This is done slightly
127 differently for faces specifying a fontset, or a font family name.
129 If the face specifies a fontset alias name, that fontset determines
130 a pattern for fonts of the given charset. If the face specifies a
131 font family, a font pattern is constructed. Charset symbols have a
132 property `x-charset-registry' for that purpose that maps a charset
133 to an XLFD registry and encoding in the font pattern constructed.
135 Available fonts on the system on which Emacs runs are then matched
136 against the font pattern. The result of font selection is the best
137 match for the given face attributes in this font list.
139 Font selection can be influenced by the user.
141 1. The user can specify the relative importance he gives the face
142 attributes width, height, weight, and slant by setting
143 face-font-selection-order (faces.el) to a list of face attribute
144 names. The default is '(:width :height :weight :slant), and means
145 that font selection first tries to find a good match for the font
146 width specified by a face, then---within fonts with that
147 width---tries to find a best match for the specified font height,
150 2. Setting face-alternative-font-family-alist allows the user to
151 specify alternative font families to try if a family specified by a
155 Composite characters.
157 Realized faces for composite characters are the only ones having a
158 fontset id >= 0. When a composite character is encoded into a
159 sequence of non-composite characters (in xterm.c), a suitable font
160 for the non-composite characters is then selected and realized,
161 i.e. the realization process is delayed but in principle the same.
164 Initialization of basic faces.
166 The faces `default', `modeline' are considered `basic faces'.
167 When redisplay happens the first time for a newly created frame,
168 basic faces are realized for CHARSET_ASCII. Frame parameters are
169 used to fill in unspecified attributes of the default face. */
171 /* Define SCALABLE_FONTS to a non-zero value to enable scalable
172 font use. Define it to zero to disable scalable font use.
174 Use of too many or too large scalable fonts can crash XFree86
175 servers. That's why I've put the code dealing with scalable fonts
178 #define SCALABLE_FONTS 1
180 #include <sys/types.h>
181 #include <sys/stat.h>
187 #ifdef HAVE_X_WINDOWS
192 #include <Xm/XmStrDefs.h>
193 #endif /* USE_MOTIF */
201 #include "dispextern.h"
202 #include "blockinput.h"
204 #include "intervals.h"
206 #ifdef HAVE_X_WINDOWS
208 /* Compensate for a bug in Xos.h on some systems, on which it requires
209 time.h. On some such systems, Xos.h tries to redefine struct
210 timeval and struct timezone if USG is #defined while it is
213 #ifdef XOS_NEEDS_TIME_H
219 #else /* not XOS_NEEDS_TIME_H */
221 #endif /* not XOS_NEEDS_TIME_H */
223 #endif /* HAVE_X_WINDOWS */
228 #include "keyboard.h"
231 #define max(A, B) ((A) > (B) ? (A) : (B))
232 #define min(A, B) ((A) < (B) ? (A) : (B))
233 #define abs(X) ((X) < 0 ? -(X) : (X))
236 /* Non-zero if face attribute ATTR is unspecified. */
238 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
240 /* Value is the number of elements of VECTOR. */
242 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
244 /* Make a copy of string S on the stack using alloca. Value is a pointer
247 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
249 /* Make a copy of the contents of Lisp string S on the stack using
250 alloca. Value is a pointer to the copy. */
252 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
254 /* Size of hash table of realized faces in face caches (should be a
257 #define FACE_CACHE_BUCKETS_SIZE 1001
259 /* Keyword symbols used for face attribute names. */
261 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
262 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
263 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
264 Lisp_Object QCreverse_video
;
265 Lisp_Object QCoverline
, QCstrike_through
, QCbox
;
267 /* Symbols used for attribute values. */
269 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
270 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
271 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
272 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
273 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
274 Lisp_Object Qultra_expanded
;
275 Lisp_Object Qreleased_button
, Qpressed_button
;
276 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
277 Lisp_Object Qunspecified
;
279 /* The symbol `x-charset-registry'. This property of charsets defines
280 the X registry and encoding that fonts should have that are used to
281 display characters of that charset. */
283 Lisp_Object Qx_charset_registry
;
285 /* The name of the function to call when the background of the frame
286 has changed, frame_update_face_colors. */
288 Lisp_Object Qframe_update_face_colors
;
290 /* Names of basic faces. */
292 Lisp_Object Qdefault
, Qmode_line
, Qtool_bar
, Qregion
, Qfringe
;
293 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
295 /* The symbol `face-alias'. A symbols having that property is an
296 alias for another face. Value of the property is the name of
299 Lisp_Object Qface_alias
;
301 /* Names of frame parameters related to faces. */
303 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
304 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
306 /* Default stipple pattern used on monochrome displays. This stipple
307 pattern is used on monochrome displays instead of shades of gray
308 for a face background color. See `set-face-stipple' for possible
309 values for this variable. */
311 Lisp_Object Vface_default_stipple
;
313 /* Default registry and encoding to use for charsets whose charset
314 symbols don't specify one. */
316 Lisp_Object Vface_default_registry
;
318 /* Alist of alternative font families. Each element is of the form
319 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
320 try FAMILY1, then FAMILY2, ... */
322 Lisp_Object Vface_alternative_font_family_alist
;
324 /* Allowed scalable fonts. A value of nil means don't allow any
325 scalable fonts. A value of t means allow the use of any scalable
326 font. Otherwise, value must be a list of regular expressions. A
327 font may be scaled if its name matches a regular expression in the
331 Lisp_Object Vscalable_fonts_allowed
;
334 /* Maximum number of fonts to consider in font_list. If not an
335 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
337 Lisp_Object Vfont_list_limit
;
338 #define DEFAULT_FONT_LIST_LIMIT 100
340 /* The symbols `foreground-color' and `background-color' which can be
341 used as part of a `face' property. This is for compatibility with
344 Lisp_Object Qforeground_color
, Qbackground_color
;
346 /* The symbols `face' and `mouse-face' used as text properties. */
349 extern Lisp_Object Qmouse_face
;
351 /* Error symbol for wrong_type_argument in load_pixmap. */
353 Lisp_Object Qpixmap_spec_p
;
355 /* Alist of global face definitions. Each element is of the form
356 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
357 is a Lisp vector of face attributes. These faces are used
358 to initialize faces for new frames. */
360 Lisp_Object Vface_new_frame_defaults
;
362 /* The next ID to assign to Lisp faces. */
364 static int next_lface_id
;
366 /* A vector mapping Lisp face Id's to face names. */
368 static Lisp_Object
*lface_id_to_name
;
369 static int lface_id_to_name_size
;
371 /* An alist of elements (COLOR-NAME . INDEX) mapping color names
372 to color indices for tty frames. */
374 Lisp_Object Vface_tty_color_alist
;
376 /* Counter for calls to clear_face_cache. If this counter reaches
377 CLEAR_FONT_TABLE_COUNT, and a frame has more than
378 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
380 static int clear_font_table_count
;
381 #define CLEAR_FONT_TABLE_COUNT 100
382 #define CLEAR_FONT_TABLE_NFONTS 10
384 /* Non-zero means face attributes have been changed since the last
385 redisplay. Used in redisplay_internal. */
387 int face_change_count
;
389 /* The total number of colors currently allocated. */
392 static int ncolors_allocated
;
393 static int npixmaps_allocated
;
399 /* Function prototypes. */
404 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
405 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
406 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
407 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
409 static int first_font_matching
P_ ((struct frame
*f
, char *,
410 struct font_name
*));
411 static int x_face_list_fonts
P_ ((struct frame
*, char *,
412 struct font_name
*, int, int, int));
413 static int font_scalable_p
P_ ((struct font_name
*));
414 static Lisp_Object deduce_unibyte_registry
P_ ((struct frame
*, char *));
415 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
416 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
417 static char *xstrdup
P_ ((char *));
418 static unsigned char *xstrlwr
P_ ((unsigned char *));
419 static void signal_error
P_ ((char *, Lisp_Object
));
420 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
421 static void load_face_font_or_fontset
P_ ((struct frame
*, struct face
*, char *, int));
422 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
423 static void free_face_colors
P_ ((struct frame
*, struct face
*));
424 static int face_color_gray_p
P_ ((struct frame
*, char *));
425 static char *build_font_name
P_ ((struct font_name
*));
426 static void free_font_names
P_ ((struct font_name
*, int));
427 static int sorted_font_list
P_ ((struct frame
*, char *,
428 int (*cmpfn
) P_ ((const void *, const void *)),
429 struct font_name
**));
430 static int font_list
P_ ((struct frame
*, char *, char *, char *, struct font_name
**));
431 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, char *, char *, char *,
432 struct font_name
**));
433 static int cmp_font_names
P_ ((const void *, const void *));
434 static struct face
*realize_face
P_ ((struct face_cache
*,
435 Lisp_Object
*, int));
436 static struct face
*realize_x_face
P_ ((struct face_cache
*,
437 Lisp_Object
*, int));
438 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
439 Lisp_Object
*, int));
440 static int realize_basic_faces
P_ ((struct frame
*));
441 static int realize_default_face
P_ ((struct frame
*));
442 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
443 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
444 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
445 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
446 static unsigned lface_hash
P_ ((Lisp_Object
*));
447 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
448 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
449 static void free_realized_face
P_ ((struct frame
*, struct face
*));
450 static void clear_face_gcs
P_ ((struct face_cache
*));
451 static void free_face_cache
P_ ((struct face_cache
*));
452 static int face_numeric_weight
P_ ((Lisp_Object
));
453 static int face_numeric_slant
P_ ((Lisp_Object
));
454 static int face_numeric_swidth
P_ ((Lisp_Object
));
455 static int face_fontset
P_ ((struct frame
*, Lisp_Object
*));
456 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int,
458 static char *choose_face_fontset_font
P_ ((struct frame
*, Lisp_Object
*,
460 static void merge_face_vectors
P_ ((Lisp_Object
*from
, Lisp_Object
*));
461 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
463 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
, char *,
465 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
466 static struct face
*make_realized_face
P_ ((Lisp_Object
*, int, Lisp_Object
));
467 static void free_realized_faces
P_ ((struct face_cache
*));
468 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
469 struct font_name
*, int));
470 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
471 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
472 static int xlfd_numeric_slant
P_ ((struct font_name
*));
473 static int xlfd_numeric_weight
P_ ((struct font_name
*));
474 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
475 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
476 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
477 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
478 static int xlfd_fixed_p
P_ ((struct font_name
*));
479 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
481 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
482 struct font_name
*, int, int));
483 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
484 struct font_name
*, int));
486 #ifdef HAVE_X_WINDOWS
488 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
489 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
490 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
491 int (*cmpfn
) P_ ((const void *, const void *))));
492 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
493 static void x_free_gc
P_ ((struct frame
*, GC
));
494 static void clear_font_table
P_ ((struct frame
*));
496 #endif /* HAVE_X_WINDOWS */
499 /***********************************************************************
501 ***********************************************************************/
503 #ifdef HAVE_X_WINDOWS
505 /* Create and return a GC for use on frame F. GC values and mask
506 are given by XGCV and MASK. */
509 x_create_gc (f
, mask
, xgcv
)
516 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
523 /* Free GC which was used on frame F. */
531 xassert (--ngcs
>= 0);
532 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
536 #endif /* HAVE_X_WINDOWS */
539 /* Like strdup, but uses xmalloc. */
545 int len
= strlen (s
) + 1;
546 char *p
= (char *) xmalloc (len
);
552 /* Like stricmp. Used to compare parts of font names which are in
557 unsigned char *s1
, *s2
;
561 unsigned char c1
= tolower (*s1
);
562 unsigned char c2
= tolower (*s2
);
564 return c1
< c2
? -1 : 1;
569 return *s2
== 0 ? 0 : -1;
574 /* Like strlwr, which might not always be available. */
576 static unsigned char *
580 unsigned char *p
= s
;
589 /* Signal `error' with message S, and additional argument ARG. */
592 signal_error (s
, arg
)
596 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
600 /* If FRAME is nil, return a pointer to the selected frame.
601 Otherwise, check that FRAME is a live frame, and return a pointer
602 to it. NPARAM is the parameter number of FRAME, for
603 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
604 Lisp function definitions. */
606 static INLINE
struct frame
*
607 frame_or_selected_frame (frame
, nparam
)
612 frame
= selected_frame
;
614 CHECK_LIVE_FRAME (frame
, nparam
);
615 return XFRAME (frame
);
619 /***********************************************************************
621 ***********************************************************************/
623 /* Initialize face cache and basic faces for frame F. */
629 /* Make a face cache, if F doesn't have one. */
630 if (FRAME_FACE_CACHE (f
) == NULL
)
631 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
633 #ifdef HAVE_X_WINDOWS
634 /* Make the image cache. */
637 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
638 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
639 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
641 #endif /* HAVE_X_WINDOWS */
643 /* Realize basic faces. Must have enough information in frame
644 parameters to realize basic faces at this point. */
645 #ifdef HAVE_X_WINDOWS
646 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
648 if (!realize_basic_faces (f
))
653 /* Free face cache of frame F. Called from Fdelete_frame. */
659 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
663 free_face_cache (face_cache
);
664 FRAME_FACE_CACHE (f
) = NULL
;
667 #ifdef HAVE_X_WINDOWS
670 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
673 --image_cache
->refcount
;
674 if (image_cache
->refcount
== 0)
675 free_image_cache (f
);
678 #endif /* HAVE_X_WINDOWS */
682 /* Clear face caches, and recompute basic faces for frame F. Call
683 this after changing frame parameters on which those faces depend,
684 or when realized faces have been freed due to changing attributes
688 recompute_basic_faces (f
)
691 if (FRAME_FACE_CACHE (f
))
694 clear_face_cache (0);
695 realized_p
= realize_basic_faces (f
);
696 xassert (realized_p
);
701 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
702 try to free unused fonts, too. */
705 clear_face_cache (clear_fonts_p
)
708 #ifdef HAVE_X_WINDOWS
709 Lisp_Object tail
, frame
;
713 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
715 /* From time to time see if we can unload some fonts. This also
716 frees all realized faces on all frames. Fonts needed by
717 faces will be loaded again when faces are realized again. */
718 clear_font_table_count
= 0;
720 FOR_EACH_FRAME (tail
, frame
)
724 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
726 free_all_realized_faces (frame
);
727 clear_font_table (f
);
733 /* Clear GCs of realized faces. */
734 FOR_EACH_FRAME (tail
, frame
)
739 clear_face_gcs (FRAME_FACE_CACHE (f
));
740 clear_image_cache (f
, 0);
744 #endif /* HAVE_X_WINDOWS */
748 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
749 "Clear face caches on all frames.\n\
750 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
752 Lisp_Object thorougly
;
754 clear_face_cache (!NILP (thorougly
));
760 #ifdef HAVE_X_WINDOWS
763 /* Remove those fonts from the font table of frame F that are not used
764 by fontsets. Called from clear_face_cache from time to time. */
770 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
772 Lisp_Object rest
, frame
;
775 xassert (FRAME_X_P (f
));
777 used
= (char *) alloca (dpyinfo
->n_fonts
* sizeof *used
);
778 bzero (used
, dpyinfo
->n_fonts
* sizeof *used
);
780 /* For all frames with the same x_display_info as F, record
781 in `used' those fonts that are in use by fontsets. */
782 FOR_EACH_FRAME (rest
, frame
)
783 if (FRAME_X_DISPLAY_INFO (XFRAME (frame
)) == dpyinfo
)
785 struct frame
*f
= XFRAME (frame
);
786 struct fontset_data
*fontset_data
= FRAME_FONTSET_DATA (f
);
788 for (i
= 0; i
< fontset_data
->n_fontsets
; ++i
)
790 struct fontset_info
*info
= fontset_data
->fontset_table
[i
];
793 for (j
= 0; j
<= MAX_CHARSET
; ++j
)
795 int idx
= info
->font_indexes
[j
];
802 /* Free those fonts that are not used by fontsets. */
803 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
804 if (used
[i
] == 0 && dpyinfo
->font_table
[i
].name
)
806 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
808 /* Free names. In xfns.c there is a comment that full_name
809 should never be freed because it is always shared with
810 something else. I don't think this is true anymore---see
811 x_load_font. It's either equal to font_info->name or
812 allocated via xmalloc, and there seems to be no place in
813 the source files where full_name is transferred to another
815 if (font_info
->full_name
!= font_info
->name
)
816 xfree (font_info
->full_name
);
817 xfree (font_info
->name
);
821 XFreeFont (dpyinfo
->display
, font_info
->font
);
824 /* Mark font table slot free. */
825 font_info
->font
= NULL
;
826 font_info
->name
= font_info
->full_name
= NULL
;
831 #endif /* HAVE_X_WINDOWS */
835 /***********************************************************************
837 ***********************************************************************/
839 #ifdef HAVE_X_WINDOWS
841 DEFUN ("pixmap-spec-p", Fpixmap_spec_p
, Spixmap_spec_p
, 1, 1, 0,
842 "Value is non-nil if OBJECT is a valid pixmap specification.\n\
843 A pixmap specification is either a string, a file name, or a list\n\
844 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the pixmap,\n\
845 HEIGHT is its height, and DATA is a string containing the bits of\n\
846 the pixmap. Bits are stored row by row, each row occupies\n\
847 (WIDTH + 7)/8 bytes.")
853 if (STRINGP (object
))
854 /* If OBJECT is a string, it's a file name. */
856 else if (CONSP (object
))
858 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
859 HEIGHT must be integers > 0, and DATA must be string large
860 enough to hold a bitmap of the specified size. */
861 Lisp_Object width
, height
, data
;
863 height
= width
= data
= Qnil
;
867 width
= XCAR (object
);
868 object
= XCDR (object
);
871 height
= XCAR (object
);
872 object
= XCDR (object
);
874 data
= XCAR (object
);
878 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
880 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
882 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* height
)
887 return pixmap_p
? Qt
: Qnil
;
891 /* Load a bitmap according to NAME (which is either a file name or a
892 pixmap spec) for use on frame F. Value is the bitmap_id (see
893 xfns.c). If NAME is nil, return with a bitmap id of zero. If
894 bitmap cannot be loaded, display a message saying so, and return
895 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
896 if these pointers are not null. */
899 load_pixmap (f
, name
, w_ptr
, h_ptr
)
902 unsigned int *w_ptr
, *h_ptr
;
910 tem
= Fpixmap_spec_p (name
);
912 wrong_type_argument (Qpixmap_spec_p
, name
);
917 /* Decode a bitmap spec into a bitmap. */
922 w
= XINT (Fcar (name
));
923 h
= XINT (Fcar (Fcdr (name
)));
924 bits
= Fcar (Fcdr (Fcdr (name
)));
926 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
931 /* It must be a string -- a file name. */
932 bitmap_id
= x_create_bitmap_from_file (f
, name
);
938 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
949 ++npixmaps_allocated
;
952 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
955 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
961 #endif /* HAVE_X_WINDOWS */
965 /***********************************************************************
967 ***********************************************************************/
969 #ifdef HAVE_X_WINDOWS
971 /* Update the line_height of frame F. Return non-zero if line height
975 frame_update_line_height (f
)
978 int fontset
, line_height
, changed_p
;
980 fontset
= f
->output_data
.x
->fontset
;
982 line_height
= FRAME_FONTSET_DATA (f
)->fontset_table
[fontset
]->height
;
984 line_height
= FONT_HEIGHT (f
->output_data
.x
->font
);
986 changed_p
= line_height
!= f
->output_data
.x
->line_height
;
987 f
->output_data
.x
->line_height
= line_height
;
991 #endif /* HAVE_X_WINDOWS */
994 /***********************************************************************
996 ***********************************************************************/
998 #ifdef HAVE_X_WINDOWS
1000 /* Load font or fontset of face FACE which is used on frame F.
1001 FONTSET is the fontset FACE should use or -1, if FACE doesn't use a
1002 fontset. FONT_NAME is the name of the font to load, if no fontset
1003 is used. It is null if no suitable font name could be determined
1007 load_face_font_or_fontset (f
, face
, font_name
, fontset
)
1013 struct font_info
*font_info
= NULL
;
1015 face
->font_info_id
= -1;
1016 face
->fontset
= fontset
;
1021 font_info
= FS_LOAD_FONT (f
, FRAME_X_FONT_TABLE (f
), CHARSET_ASCII
,
1024 font_info
= FS_LOAD_FONT (f
, FRAME_X_FONT_TABLE (f
), face
->charset
,
1033 face
->font_info_id
= FONT_INFO_ID (f
, font_info
);
1034 face
->font
= font_info
->font
;
1035 face
->font_name
= font_info
->full_name
;
1037 /* Make the registry part of the font name readily accessible.
1038 The registry is used to find suitable faces for unibyte text. */
1039 s
= font_info
->full_name
+ strlen (font_info
->full_name
);
1041 while (i
< 2 && --s
>= font_info
->full_name
)
1045 if (!STRINGP (face
->registry
)
1046 || xstricmp (XSTRING (face
->registry
)->data
, s
+ 1) != 0)
1048 if (STRINGP (Vface_default_registry
)
1049 && !xstricmp (XSTRING (Vface_default_registry
)->data
, s
+ 1))
1050 face
->registry
= Vface_default_registry
;
1052 face
->registry
= build_string (s
+ 1);
1055 else if (fontset
>= 0)
1056 add_to_log ("Unable to load ASCII font of fontset %d",
1057 make_number (fontset
), Qnil
);
1059 add_to_log ("Unable to load font %s",
1060 build_string (font_name
), Qnil
);
1063 #endif /* HAVE_X_WINDOWS */
1067 /***********************************************************************
1069 ***********************************************************************/
1071 #ifdef HAVE_X_WINDOWS
1073 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1074 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1077 face_color_gray_p (f
, color_name
)
1084 if (defined_color (f
, color_name
, &color
, 0))
1085 gray_p
= ((abs (color
.red
- color
.green
)
1086 < max (color
.red
, color
.green
) / 20)
1087 && (abs (color
.green
- color
.blue
)
1088 < max (color
.green
, color
.blue
) / 20)
1089 && (abs (color
.blue
- color
.red
)
1090 < max (color
.blue
, color
.red
) / 20));
1098 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1099 BACKGROUND_P non-zero means the color will be used as background
1103 face_color_supported_p (f
, color_name
, background_p
)
1110 XSETFRAME (frame
, f
);
1111 return (!NILP (Vwindow_system
)
1112 && (!NILP (Fx_display_color_p (frame
))
1113 || xstricmp (color_name
, "black") == 0
1114 || xstricmp (color_name
, "white") == 0
1116 && face_color_gray_p (f
, color_name
))
1117 || (!NILP (Fx_display_grayscale_p (frame
))
1118 && face_color_gray_p (f
, color_name
))));
1122 DEFUN ("face-color-gray-p", Fface_color_gray_p
, Sface_color_gray_p
, 1, 2, 0,
1123 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1124 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1125 If FRAME is nil or omitted, use the selected frame.")
1127 Lisp_Object color
, frame
;
1129 struct frame
*f
= check_x_frame (frame
);
1130 CHECK_STRING (color
, 0);
1131 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1135 DEFUN ("face-color-supported-p", Fface_color_supported_p
,
1136 Sface_color_supported_p
, 2, 3, 0,
1137 "Return non-nil if COLOR can be displayed on FRAME.\n\
1138 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1139 If FRAME is nil or omitted, use the selected frame.\n\
1140 COLOR must be a valid color name.")
1141 (frame
, color
, background_p
)
1142 Lisp_Object frame
, color
, background_p
;
1144 struct frame
*f
= check_x_frame (frame
);
1145 CHECK_STRING (color
, 0);
1146 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1151 /* Load color with name NAME for use by face FACE on frame F.
1152 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1153 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1154 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1155 pixel color. If color cannot be loaded, display a message, and
1156 return the foreground, background or underline color of F, but
1157 record that fact in flags of the face so that we don't try to free
1161 load_color (f
, face
, name
, target_index
)
1165 enum lface_attribute_index target_index
;
1169 xassert (STRINGP (name
));
1170 xassert (target_index
== LFACE_FOREGROUND_INDEX
1171 || target_index
== LFACE_BACKGROUND_INDEX
1172 || target_index
== LFACE_UNDERLINE_INDEX
1173 || target_index
== LFACE_OVERLINE_INDEX
1174 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1175 || target_index
== LFACE_BOX_INDEX
);
1177 /* if the color map is full, defined_color will return a best match
1178 to the values in an existing cell. */
1179 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1181 add_to_log ("Unable to load color %s", name
, Qnil
);
1183 switch (target_index
)
1185 case LFACE_FOREGROUND_INDEX
:
1186 face
->foreground_defaulted_p
= 1;
1187 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1190 case LFACE_BACKGROUND_INDEX
:
1191 face
->background_defaulted_p
= 1;
1192 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1195 case LFACE_UNDERLINE_INDEX
:
1196 face
->underline_defaulted_p
= 1;
1197 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1200 case LFACE_OVERLINE_INDEX
:
1201 face
->overline_color_defaulted_p
= 1;
1202 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1205 case LFACE_STRIKE_THROUGH_INDEX
:
1206 face
->strike_through_color_defaulted_p
= 1;
1207 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1210 case LFACE_BOX_INDEX
:
1211 face
->box_color_defaulted_p
= 1;
1212 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1221 ++ncolors_allocated
;
1228 /* Load colors for face FACE which is used on frame F. Colors are
1229 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1230 of ATTRS. If the background color specified is not supported on F,
1231 try to emulate gray colors with a stipple from Vface_default_stipple. */
1234 load_face_colors (f
, face
, attrs
)
1241 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1242 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1244 /* Swap colors if face is inverse-video. */
1245 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1253 /* Check for support for foreground, not for background because
1254 face_color_supported_p is smart enough to know that grays are
1255 "supported" as background because we are supposed to use stipple
1257 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1258 && !NILP (Fpixmap_spec_p (Vface_default_stipple
)))
1260 x_destroy_bitmap (f
, face
->stipple
);
1261 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1262 &face
->pixmap_w
, &face
->pixmap_h
);
1265 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1266 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1270 /* Free color PIXEL on frame F. */
1273 unload_color (f
, pixel
)
1275 unsigned long pixel
;
1277 Display
*dpy
= FRAME_X_DISPLAY (f
);
1278 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
1280 if (pixel
== BLACK_PIX_DEFAULT (f
)
1281 || pixel
== WHITE_PIX_DEFAULT (f
))
1286 /* If display has an immutable color map, freeing colors is not
1287 necessary and some servers don't allow it. So don't do it. */
1288 if (! (class == StaticColor
|| class == StaticGray
|| class == TrueColor
))
1290 Colormap cmap
= DefaultColormapOfScreen (FRAME_X_SCREEN (f
));
1291 XFreeColors (dpy
, cmap
, &pixel
, 1, 0);
1298 /* Free colors allocated for FACE. */
1301 free_face_colors (f
, face
)
1305 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
1307 /* If display has an immutable color map, freeing colors is not
1308 necessary and some servers don't allow it. So don't do it. */
1309 if (class != StaticColor
1310 && class != StaticGray
1311 && class != TrueColor
)
1317 dpy
= FRAME_X_DISPLAY (f
);
1318 cmap
= DefaultColormapOfScreen (FRAME_X_SCREEN (f
));
1320 if (face
->foreground
!= BLACK_PIX_DEFAULT (f
)
1321 && face
->foreground
!= WHITE_PIX_DEFAULT (f
)
1322 && !face
->foreground_defaulted_p
)
1324 XFreeColors (dpy
, cmap
, &face
->foreground
, 1, 0);
1325 IF_DEBUG (--ncolors_allocated
);
1328 if (face
->background
!= BLACK_PIX_DEFAULT (f
)
1329 && face
->background
!= WHITE_PIX_DEFAULT (f
)
1330 && !face
->background_defaulted_p
)
1332 XFreeColors (dpy
, cmap
, &face
->background
, 1, 0);
1333 IF_DEBUG (--ncolors_allocated
);
1336 if (face
->underline_p
1337 && !face
->underline_defaulted_p
1338 && face
->underline_color
!= BLACK_PIX_DEFAULT (f
)
1339 && face
->underline_color
!= WHITE_PIX_DEFAULT (f
))
1341 XFreeColors (dpy
, cmap
, &face
->underline_color
, 1, 0);
1342 IF_DEBUG (--ncolors_allocated
);
1345 if (face
->overline_p
1346 && !face
->overline_color_defaulted_p
1347 && face
->overline_color
!= BLACK_PIX_DEFAULT (f
)
1348 && face
->overline_color
!= WHITE_PIX_DEFAULT (f
))
1350 XFreeColors (dpy
, cmap
, &face
->overline_color
, 1, 0);
1351 IF_DEBUG (--ncolors_allocated
);
1354 if (face
->strike_through_p
1355 && !face
->strike_through_color_defaulted_p
1356 && face
->strike_through_color
!= BLACK_PIX_DEFAULT (f
)
1357 && face
->strike_through_color
!= WHITE_PIX_DEFAULT (f
))
1359 XFreeColors (dpy
, cmap
, &face
->strike_through_color
, 1, 0);
1360 IF_DEBUG (--ncolors_allocated
);
1363 if (face
->box
!= FACE_NO_BOX
1364 && !face
->box_color_defaulted_p
1365 && face
->box_color
!= BLACK_PIX_DEFAULT (f
)
1366 && face
->box_color
!= WHITE_PIX_DEFAULT (f
))
1368 XFreeColors (dpy
, cmap
, &face
->box_color
, 1, 0);
1369 IF_DEBUG (--ncolors_allocated
);
1376 #else /* ! HAVE_X_WINDOWS */
1380 load_color (f
, face
, name
, target_index
)
1384 enum lface_attribute_index target_index
;
1387 int color_idx
= FACE_TTY_DEFAULT_COLOR
;
1390 return (unsigned long)FACE_TTY_DEFAULT_COLOR
;
1392 CHECK_STRING (name
, 0);
1395 if (XSTRING (name
)->size
&& !NILP (Ffboundp (Qmsdos_color_translate
)))
1397 color
= call1 (Qmsdos_color_translate
, name
);
1399 if (INTEGERP (color
))
1400 return (unsigned long)XINT (color
);
1402 add_to_log ("Unable to load color %s", name
, Qnil
);
1404 switch (target_index
)
1406 case LFACE_FOREGROUND_INDEX
:
1407 face
->foreground_defaulted_p
= 1;
1408 color_idx
= FRAME_FOREGROUND_PIXEL (f
);
1411 case LFACE_BACKGROUND_INDEX
:
1412 face
->background_defaulted_p
= 1;
1413 color_idx
= FRAME_BACKGROUND_PIXEL (f
);
1416 case LFACE_UNDERLINE_INDEX
:
1417 face
->underline_defaulted_p
= 1;
1418 color_idx
= FRAME_FOREGROUND_PIXEL (f
);
1421 case LFACE_OVERLINE_INDEX
:
1422 face
->overline_color_defaulted_p
= 1;
1423 color_idx
= FRAME_FOREGROUND_PIXEL (f
);
1426 case LFACE_STRIKE_THROUGH_INDEX
:
1427 face
->strike_through_color_defaulted_p
= 1;
1428 color_idx
= FRAME_FOREGROUND_PIXEL (f
);
1431 case LFACE_BOX_INDEX
:
1432 face
->box_color_defaulted_p
= 1;
1433 color_idx
= FRAME_FOREGROUND_PIXEL (f
);
1438 color_idx
= msdos_stdcolor_idx (XSTRING (name
)->data
);
1440 return (unsigned long)color_idx
;
1443 #endif /* ! HAVE_X_WINDOWS */
1447 /***********************************************************************
1449 ***********************************************************************/
1451 /* An enumerator for each field of an XLFD font name. */
1472 /* An enumerator for each possible slant value of a font. Taken from
1473 the XLFD specification. */
1481 XLFD_SLANT_REVERSE_ITALIC
,
1482 XLFD_SLANT_REVERSE_OBLIQUE
,
1486 /* Relative font weight according to XLFD documentation. */
1490 XLFD_WEIGHT_UNKNOWN
,
1491 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1492 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1493 XLFD_WEIGHT_LIGHT
, /* 30 */
1494 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1495 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1496 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1497 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1498 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1499 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1502 /* Relative proportionate width. */
1506 XLFD_SWIDTH_UNKNOWN
,
1507 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1508 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1509 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1510 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1511 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1512 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1513 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1514 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1515 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1518 /* Structure used for tables mapping XLFD weight, slant, and width
1519 names to numeric and symbolic values. */
1525 Lisp_Object
*symbol
;
1528 /* Table of XLFD slant names and their numeric and symbolic
1529 representations. This table must be sorted by slant names in
1532 static struct table_entry slant_table
[] =
1534 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1535 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1536 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1537 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1538 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1539 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1542 /* Table of XLFD weight names. This table must be sorted by weight
1543 names in ascending order. */
1545 static struct table_entry weight_table
[] =
1547 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1548 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1549 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1550 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1551 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1552 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1553 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1554 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1555 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1556 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1557 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1558 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1559 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1560 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1561 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1564 /* Table of XLFD width names. This table must be sorted by width
1565 names in ascending order. */
1567 static struct table_entry swidth_table
[] =
1569 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1570 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1571 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1572 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1573 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1574 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1575 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1576 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1577 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1578 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1579 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1580 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1581 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1582 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1583 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1586 /* Structure used to hold the result of splitting font names in XLFD
1587 format into their fields. */
1591 /* The original name which is modified destructively by
1592 split_font_name. The pointer is kept here to be able to free it
1593 if it was allocated from the heap. */
1596 /* Font name fields. Each vector element points into `name' above.
1597 Fields are NUL-terminated. */
1598 char *fields
[XLFD_LAST
];
1600 /* Numeric values for those fields that interest us. See
1601 split_font_name for which these are. */
1602 int numeric
[XLFD_LAST
];
1605 /* The frame in effect when sorting font names. Set temporarily in
1606 sort_fonts so that it is available in font comparison functions. */
1608 static struct frame
*font_frame
;
1610 /* Order by which font selection chooses fonts. The default values
1611 mean `first, find a best match for the font width, then for the
1612 font height, then for weight, then for slant.' This variable can be
1613 set via set-face-font-sort-order. */
1615 static int font_sort_order
[4];
1618 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1619 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1620 is a pointer to the matching table entry or null if no table entry
1623 static struct table_entry
*
1624 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1625 struct table_entry
*table
;
1627 struct font_name
*font
;
1630 /* Function split_font_name converts fields to lower-case, so there
1631 is no need to use xstrlwr or xstricmp here. */
1632 char *s
= font
->fields
[field_index
];
1633 int low
, mid
, high
, cmp
;
1640 mid
= (low
+ high
) / 2;
1641 cmp
= strcmp (table
[mid
].name
, s
);
1655 /* Return a numeric representation for font name field
1656 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1657 has DIM entries. Value is the numeric value found or DFLT if no
1658 table entry matches. This function is used to translate weight,
1659 slant, and swidth names of XLFD font names to numeric values. */
1662 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1663 struct table_entry
*table
;
1665 struct font_name
*font
;
1669 struct table_entry
*p
;
1670 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1671 return p
? p
->numeric
: dflt
;
1675 /* Return a symbolic representation for font name field
1676 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1677 has DIM entries. Value is the symbolic value found or DFLT if no
1678 table entry matches. This function is used to translate weight,
1679 slant, and swidth names of XLFD font names to symbols. */
1681 static INLINE Lisp_Object
1682 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1683 struct table_entry
*table
;
1685 struct font_name
*font
;
1689 struct table_entry
*p
;
1690 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1691 return p
? *p
->symbol
: dflt
;
1695 /* Return a numeric value for the slant of the font given by FONT. */
1698 xlfd_numeric_slant (font
)
1699 struct font_name
*font
;
1701 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1702 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1706 /* Return a symbol representing the weight of the font given by FONT. */
1708 static INLINE Lisp_Object
1709 xlfd_symbolic_slant (font
)
1710 struct font_name
*font
;
1712 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1713 font
, XLFD_SLANT
, Qnormal
);
1717 /* Return a numeric value for the weight of the font given by FONT. */
1720 xlfd_numeric_weight (font
)
1721 struct font_name
*font
;
1723 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1724 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1728 /* Return a symbol representing the slant of the font given by FONT. */
1730 static INLINE Lisp_Object
1731 xlfd_symbolic_weight (font
)
1732 struct font_name
*font
;
1734 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1735 font
, XLFD_WEIGHT
, Qnormal
);
1739 /* Return a numeric value for the swidth of the font whose XLFD font
1740 name fields are found in FONT. */
1743 xlfd_numeric_swidth (font
)
1744 struct font_name
*font
;
1746 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
1747 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
1751 /* Return a symbolic value for the swidth of FONT. */
1753 static INLINE Lisp_Object
1754 xlfd_symbolic_swidth (font
)
1755 struct font_name
*font
;
1757 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
1758 font
, XLFD_SWIDTH
, Qnormal
);
1762 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
1763 entries. Value is a pointer to the matching table entry or null if
1764 no element of TABLE contains SYMBOL. */
1766 static struct table_entry
*
1767 face_value (table
, dim
, symbol
)
1768 struct table_entry
*table
;
1774 xassert (SYMBOLP (symbol
));
1776 for (i
= 0; i
< dim
; ++i
)
1777 if (EQ (*table
[i
].symbol
, symbol
))
1780 return i
< dim
? table
+ i
: NULL
;
1784 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
1785 entries. Value is -1 if SYMBOL is not found in TABLE. */
1788 face_numeric_value (table
, dim
, symbol
)
1789 struct table_entry
*table
;
1793 struct table_entry
*p
= face_value (table
, dim
, symbol
);
1794 return p
? p
->numeric
: -1;
1798 /* Return a numeric value representing the weight specified by Lisp
1799 symbol WEIGHT. Value is one of the enumerators of enum
1803 face_numeric_weight (weight
)
1806 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
1810 /* Return a numeric value representing the slant specified by Lisp
1811 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
1814 face_numeric_slant (slant
)
1817 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
1821 /* Return a numeric value representing the swidth specified by Lisp
1822 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
1825 face_numeric_swidth (width
)
1828 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
1832 #ifdef HAVE_X_WINDOWS
1834 /* Return non-zero if FONT is the name of a fixed-pitch font. */
1838 struct font_name
*font
;
1840 /* Function split_font_name converts fields to lower-case, so there
1841 is no need to use tolower here. */
1842 return *font
->fields
[XLFD_SPACING
] != 'p';
1846 /* Return the point size of FONT on frame F, measured in 1/10 pt.
1848 The actual height of the font when displayed on F depends on the
1849 resolution of both the font and frame. For example, a 10pt font
1850 designed for a 100dpi display will display larger than 10pt on a
1851 75dpi display. (It's not unusual to use fonts not designed for the
1852 display one is using. For example, some intlfonts are available in
1853 72dpi versions, only.)
1855 Value is the real point size of FONT on frame F, or 0 if it cannot
1859 xlfd_point_size (f
, font
)
1861 struct font_name
*font
;
1863 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
1864 double font_resy
= atoi (font
->fields
[XLFD_RESY
]);
1865 double font_pt
= atoi (font
->fields
[XLFD_POINT_SIZE
]);
1868 if (font_resy
== 0 || font_pt
== 0)
1871 real_pt
= (font_resy
/ resy
) * font_pt
+ 0.5;
1877 /* Split XLFD font name FONT->name destructively into NUL-terminated,
1878 lower-case fields in FONT->fields. NUMERIC_P non-zero means
1879 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
1880 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
1881 zero if the font name doesn't have the format we expect. The
1882 expected format is a font name that starts with a `-' and has
1883 XLFD_LAST fields separated by `-'. (The XLFD specification allows
1884 forms of font names where certain field contents are enclosed in
1885 square brackets. We don't support that, for now. */
1888 split_font_name (f
, font
, numeric_p
)
1890 struct font_name
*font
;
1896 if (*font
->name
== '-')
1898 char *p
= xstrlwr (font
->name
) + 1;
1900 while (i
< XLFD_LAST
)
1902 font
->fields
[i
] = p
;
1905 while (*p
&& *p
!= '-')
1915 success_p
= i
== XLFD_LAST
;
1917 /* If requested, and font name was in the expected format,
1918 compute numeric values for some fields. */
1919 if (numeric_p
&& success_p
)
1921 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
1922 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
1923 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
1924 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
1925 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
1932 /* Build an XLFD font name from font name fields in FONT. Value is a
1933 pointer to the font name, which is allocated via xmalloc. */
1936 build_font_name (font
)
1937 struct font_name
*font
;
1941 char *font_name
= (char *) xmalloc (size
);
1942 int total_length
= 0;
1944 for (i
= 0; i
< XLFD_LAST
; ++i
)
1946 /* Add 1 because of the leading `-'. */
1947 int len
= strlen (font
->fields
[i
]) + 1;
1949 /* Reallocate font_name if necessary. Add 1 for the final
1951 if (total_length
+ len
+ 1 >= size
)
1953 int new_size
= max (2 * size
, size
+ len
+ 1);
1954 int sz
= new_size
* sizeof *font_name
;
1955 font_name
= (char *) xrealloc (font_name
, sz
);
1959 font_name
[total_length
] = '-';
1960 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
1961 total_length
+= len
;
1964 font_name
[total_length
] = 0;
1969 /* Free an array FONTS of N font_name structures. This frees FONTS
1970 itself and all `name' fields in its elements. */
1973 free_font_names (fonts
, n
)
1974 struct font_name
*fonts
;
1978 xfree (fonts
[--n
].name
);
1983 /* Sort vector FONTS of font_name structures which contains NFONTS
1984 elements using qsort and comparison function CMPFN. F is the frame
1985 on which the fonts will be used. The global variable font_frame
1986 is temporarily set to F to make it available in CMPFN. */
1989 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
1991 struct font_name
*fonts
;
1993 int (*cmpfn
) P_ ((const void *, const void *));
1996 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2001 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2002 display in x_display_list. FONTS is a pointer to a vector of
2003 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2004 alternative patterns from Valternate_fontname_alist if no fonts are
2005 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2008 For all fonts found, set FONTS[i].name to the name of the font,
2009 allocated via xmalloc, and split font names into fields. Ignore
2010 fonts that we can't parse. Value is the number of fonts found.
2012 This is similar to x_list_fonts. The differences are:
2014 1. It avoids consing.
2015 2. It never calls XLoadQueryFont. */
2018 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2022 struct font_name
*fonts
;
2023 int nfonts
, try_alternatives_p
;
2024 int scalable_fonts_p
;
2026 Display
*dpy
= f
? FRAME_X_DISPLAY (f
) : x_display_list
->display
;
2030 /* Get the list of fonts matching PATTERN from the X server. */
2032 names
= XListFonts (dpy
, pattern
, nfonts
, &n
);
2037 /* Make a copy of the font names we got from X, and
2038 split them into fields. */
2039 for (i
= j
= 0; i
< n
; ++i
)
2041 /* Make a copy of the font name. */
2042 fonts
[j
].name
= xstrdup (names
[i
]);
2044 /* Ignore fonts having a name that we can't parse. */
2045 if (!split_font_name (f
, fonts
+ j
, 1))
2046 xfree (fonts
[j
].name
);
2047 else if (font_scalable_p (fonts
+ j
))
2050 if (!scalable_fonts_p
2051 || !may_use_scalable_font_p (fonts
+ j
, names
[i
]))
2052 xfree (fonts
[j
].name
);
2055 #else /* !SCALABLE_FONTS */
2056 /* Always ignore scalable fonts. */
2057 xfree (fonts
[j
].name
);
2058 #endif /* !SCALABLE_FONTS */
2066 /* Free font names. */
2068 XFreeFontNames (names
);
2073 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2074 if (n
== 0 && try_alternatives_p
)
2076 Lisp_Object list
= Valternate_fontname_alist
;
2078 while (CONSP (list
))
2080 Lisp_Object entry
= XCAR (list
);
2082 && STRINGP (XCAR (entry
))
2083 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2090 Lisp_Object patterns
= XCAR (list
);
2093 while (CONSP (patterns
)
2094 /* If list is screwed up, give up. */
2095 && (name
= XCAR (patterns
),
2097 /* Ignore patterns equal to PATTERN because we tried that
2098 already with no success. */
2099 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2100 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2104 patterns
= XCDR (patterns
);
2112 /* Determine the first font matching PATTERN on frame F. Return in
2113 *FONT the matching font name, split into fields. Value is non-zero
2114 if a match was found. */
2117 first_font_matching (f
, pattern
, font
)
2120 struct font_name
*font
;
2123 struct font_name
*fonts
;
2125 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2126 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2130 bcopy (&fonts
[0], font
, sizeof *font
);
2132 fonts
[0].name
= NULL
;
2133 free_font_names (fonts
, nfonts
);
2140 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2141 using comparison function CMPFN. Value is the number of fonts
2142 found. If value is non-zero, *FONTS is set to a vector of
2143 font_name structures allocated from the heap containing matching
2144 fonts. Each element of *FONTS contains a name member that is also
2145 allocated from the heap. Font names in these structures are split
2146 into fields. Use free_font_names to free such an array. */
2149 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2152 int (*cmpfn
) P_ ((const void *, const void *));
2153 struct font_name
**fonts
;
2157 /* Get the list of fonts matching pattern. 100 should suffice. */
2158 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2159 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2160 nfonts
= XFASTINT (Vfont_list_limit
);
2162 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2164 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2166 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 0);
2169 /* Sort the resulting array and return it in *FONTS. If no
2170 fonts were found, make sure to set *FONTS to null. */
2172 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2183 /* Compare two font_name structures *A and *B. Value is analogous to
2184 strcmp. Sort order is given by the global variable
2185 font_sort_order. Font names are sorted so that, everything else
2186 being equal, fonts with a resolution closer to that of the frame on
2187 which they are used are listed first. The global variable
2188 font_frame is the frame on which we operate. */
2191 cmp_font_names (a
, b
)
2194 struct font_name
*x
= (struct font_name
*) a
;
2195 struct font_name
*y
= (struct font_name
*) b
;
2198 /* All strings have been converted to lower-case by split_font_name,
2199 so we can use strcmp here. */
2200 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2205 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2207 int j
= font_sort_order
[i
];
2208 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2213 /* Everything else being equal, we prefer fonts with an
2214 y-resolution closer to that of the frame. */
2215 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2216 int x_resy
= x
->numeric
[XLFD_RESY
];
2217 int y_resy
= y
->numeric
[XLFD_RESY
];
2218 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2226 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2227 is non-null list fonts matching that pattern. Otherwise, if
2228 REGISTRY_AND_ENCODING is non-null return only fonts with that
2229 registry and encoding, otherwise return fonts of any registry and
2230 encoding. Set *FONTS to a vector of font_name structures allocated
2231 from the heap containing the fonts found. Value is the number of
2235 font_list (f
, pattern
, family
, registry_and_encoding
, fonts
)
2239 char *registry_and_encoding
;
2240 struct font_name
**fonts
;
2242 if (pattern
== NULL
)
2247 if (registry_and_encoding
== NULL
)
2248 registry_and_encoding
= "*";
2250 pattern
= (char *) alloca (strlen (family
)
2251 + strlen (registry_and_encoding
)
2253 if (index (family
, '-'))
2254 sprintf (pattern
, "-%s-*-%s", family
, registry_and_encoding
);
2256 sprintf (pattern
, "-*-%s-*-%s", family
, registry_and_encoding
);
2259 return sorted_font_list (f
, pattern
, cmp_font_names
, fonts
);
2263 /* Remove elements from LIST whose cars are `equal'. Called from
2264 x-family-fonts and x-font-family-list to remove duplicate font
2268 remove_duplicates (list
)
2271 Lisp_Object tail
= list
;
2273 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2275 Lisp_Object next
= XCDR (tail
);
2276 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2277 XCDR (tail
) = XCDR (next
);
2284 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2285 "Return a list of available fonts of family FAMILY on FRAME.\n\
2286 If FAMILY is omitted or nil, list all families.\n\
2287 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2289 If FRAME is omitted or nil, use the selected frame.\n\
2290 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2291 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2292 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2293 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2294 width, weight and slant of the font. These symbols are the same as for\n\
2295 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2296 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2297 giving the registry and encoding of the font.\n\
2298 The result list is sorted according to the current setting of\n\
2299 the face font sort order.")
2301 Lisp_Object family
, frame
;
2303 struct frame
*f
= check_x_frame (frame
);
2304 struct font_name
*fonts
;
2307 struct gcpro gcpro1
;
2308 char *family_pattern
;
2311 family_pattern
= "*";
2314 CHECK_STRING (family
, 1);
2315 family_pattern
= LSTRDUPA (family
);
2320 nfonts
= font_list (f
, NULL
, family_pattern
, NULL
, &fonts
);
2321 for (i
= nfonts
- 1; i
>= 0; --i
)
2323 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2326 #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL))
2328 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2329 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2330 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2331 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2332 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2333 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2334 tem
= build_font_name (fonts
+ i
);
2335 ASET (v
, 6, build_string (tem
));
2336 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2337 fonts
[i
].fields
[XLFD_ENCODING
]);
2338 ASET (v
, 7, build_string (tem
));
2341 result
= Fcons (v
, result
);
2346 remove_duplicates (result
);
2347 free_font_names (fonts
, nfonts
);
2353 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2355 "Return a list of available font families on FRAME.\n\
2356 If FRAME is omitted or nil, use the selected frame.\n\
2357 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2358 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2363 struct frame
*f
= check_x_frame (frame
);
2365 struct font_name
*fonts
;
2367 struct gcpro gcpro1
;
2368 int count
= specpdl_ptr
- specpdl
;
2371 /* Let's consider all fonts. Increase the limit for matching
2372 fonts until we have them all. */
2375 specbind (intern ("font-list-limit"), make_number (limit
));
2376 nfonts
= font_list (f
, NULL
, "*", NULL
, &fonts
);
2378 if (nfonts
== limit
)
2380 free_font_names (fonts
, nfonts
);
2389 for (i
= nfonts
- 1; i
>= 0; --i
)
2390 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2391 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2394 remove_duplicates (result
);
2395 free_font_names (fonts
, nfonts
);
2397 return unbind_to (count
, result
);
2401 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2402 "Return a list of the names of available fonts matching PATTERN.\n\
2403 If optional arguments FACE and FRAME are specified, return only fonts\n\
2404 the same size as FACE on FRAME.\n\
2405 PATTERN is a string, perhaps with wildcard characters;\n\
2406 the * character matches any substring, and\n\
2407 the ? character matches any single character.\n\
2408 PATTERN is case-insensitive.\n\
2409 FACE is a face name--a symbol.\n\
2411 The return value is a list of strings, suitable as arguments to\n\
2414 Fonts Emacs can't use may or may not be excluded\n\
2415 even if they match PATTERN and FACE.\n\
2416 The optional fourth argument MAXIMUM sets a limit on how many\n\
2417 fonts to match. The first MAXIMUM fonts are reported.\n\
2418 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2419 occupied by a character of a font. In that case, return only fonts\n\
2420 the WIDTH times as wide as FACE on FRAME.")
2421 (pattern
, face
, frame
, maximum
, width
)
2422 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2429 CHECK_STRING (pattern
, 0);
2435 CHECK_NATNUM (maximum
, 0);
2436 maxnames
= XINT (maximum
);
2440 CHECK_NUMBER (width
, 4);
2442 /* We can't simply call check_x_frame because this function may be
2443 called before any frame is created. */
2444 f
= frame_or_selected_frame (frame
, 2);
2447 /* Perhaps we have not yet created any frame. */
2452 /* Determine the width standard for comparison with the fonts we find. */
2458 /* This is of limited utility since it works with character
2459 widths. Keep it for compatibility. --gerd. */
2460 int face_id
= lookup_named_face (f
, face
, CHARSET_ASCII
);
2461 struct face
*face
= FACE_FROM_ID (f
, face_id
);
2464 size
= face
->font
->max_bounds
.width
;
2466 size
= FRAME_FONT (f
)->max_bounds
.width
;
2469 size
*= XINT (width
);
2473 Lisp_Object args
[2];
2475 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2477 /* We don't have to check fontsets. */
2479 args
[1] = list_fontsets (f
, pattern
, size
);
2480 return Fnconc (2, args
);
2484 #endif /* HAVE_X_WINDOWS */
2488 /***********************************************************************
2490 ***********************************************************************/
2492 /* Access face attributes of face FACE, a Lisp vector. */
2494 #define LFACE_FAMILY(LFACE) \
2495 XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX]
2496 #define LFACE_HEIGHT(LFACE) \
2497 XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX]
2498 #define LFACE_WEIGHT(LFACE) \
2499 XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX]
2500 #define LFACE_SLANT(LFACE) \
2501 XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX]
2502 #define LFACE_UNDERLINE(LFACE) \
2503 XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX]
2504 #define LFACE_INVERSE(LFACE) \
2505 XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX]
2506 #define LFACE_FOREGROUND(LFACE) \
2507 XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX]
2508 #define LFACE_BACKGROUND(LFACE) \
2509 XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX]
2510 #define LFACE_STIPPLE(LFACE) \
2511 XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX]
2512 #define LFACE_SWIDTH(LFACE) \
2513 XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX]
2514 #define LFACE_OVERLINE(LFACE) \
2515 XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX]
2516 #define LFACE_STRIKE_THROUGH(LFACE) \
2517 XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX]
2518 #define LFACE_BOX(LFACE) \
2519 XVECTOR (LFACE)->contents[LFACE_BOX_INDEX]
2521 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2522 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2524 #define LFACEP(LFACE) \
2526 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2527 && EQ (XVECTOR (LFACE)->contents[0], Qface))
2532 /* Check consistency of Lisp face attribute vector ATTRS. */
2535 check_lface_attrs (attrs
)
2538 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2539 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2540 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2541 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2542 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2543 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]));
2544 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2545 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2546 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2547 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2548 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2549 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2550 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2551 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2552 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2553 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2554 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2555 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2556 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2557 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2558 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2559 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2560 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2561 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2562 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2563 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2564 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2565 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2566 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2567 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2568 #ifdef HAVE_WINDOW_SYSTEM
2569 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2570 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2571 || !NILP (Fpixmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2576 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2584 xassert (LFACEP (lface
));
2585 check_lface_attrs (XVECTOR (lface
)->contents
);
2589 #else /* GLYPH_DEBUG == 0 */
2591 #define check_lface_attrs(attrs) (void) 0
2592 #define check_lface(lface) (void) 0
2594 #endif /* GLYPH_DEBUG == 0 */
2597 /* Resolve face name FACE_NAME. If FACE_NAME Is a string, intern it
2598 to make it a symvol. If FACE_NAME is an alias for another face,
2599 return that face's name. */
2602 resolve_face_name (face_name
)
2603 Lisp_Object face_name
;
2605 Lisp_Object aliased
;
2607 if (STRINGP (face_name
))
2608 face_name
= intern (XSTRING (face_name
)->data
);
2612 aliased
= Fget (face_name
, Qface_alias
);
2616 face_name
= aliased
;
2623 /* Return the face definition of FACE_NAME on frame F. F null means
2624 return the global definition. FACE_NAME may be a string or a
2625 symbol (apparently Emacs 20.2 allows strings as face names in face
2626 text properties; ediff uses that). If FACE_NAME is an alias for
2627 another face, return that face's definition. If SIGNAL_P is
2628 non-zero, signal an error if FACE_NAME is not a valid face name.
2629 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2632 static INLINE Lisp_Object
2633 lface_from_face_name (f
, face_name
, signal_p
)
2635 Lisp_Object face_name
;
2640 face_name
= resolve_face_name (face_name
);
2643 lface
= assq_no_quit (face_name
, f
->face_alist
);
2645 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2648 lface
= XCDR (lface
);
2650 signal_error ("Invalid face", face_name
);
2652 check_lface (lface
);
2657 /* Get face attributes of face FACE_NAME from frame-local faces on
2658 frame F. Store the resulting attributes in ATTRS which must point
2659 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2660 is non-zero, signal an error if FACE_NAME does not name a face.
2661 Otherwise, value is zero if FACE_NAME is not a face. */
2664 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
2666 Lisp_Object face_name
;
2673 lface
= lface_from_face_name (f
, face_name
, signal_p
);
2676 bcopy (XVECTOR (lface
)->contents
, attrs
,
2677 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2687 /* Non-zero if all attributes in face attribute vector ATTRS are
2688 specified, i.e. are non-nil. */
2691 lface_fully_specified_p (attrs
)
2696 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2697 if (UNSPECIFIEDP (attrs
[i
]))
2700 return i
== LFACE_VECTOR_SIZE
;
2704 #ifdef HAVE_X_WINDOWS
2706 /* Set font-related attributes of Lisp face LFACE from XLFD font name
2707 FONT_NAME. If FORCE_P is zero, set only unspecified attributes of
2708 LFACE. Ignore fields of FONT_NAME containing wildcards. Value is
2709 zero if not successful because FONT_NAME was not in a valid format.
2710 A valid format is one that is suitable for split_font_name, see the
2714 set_lface_from_font_name (f
, lface
, font_name
, force_p
)
2720 struct font_name font
;
2723 int free_font_name_p
= 0;
2725 /* If FONT_NAME contains wildcards, use the first matching font. */
2726 if (index (font_name
, '*') || index (font_name
, '?'))
2728 if (!first_font_matching (f
, font_name
, &font
))
2730 free_font_name_p
= 1;
2734 font
.name
= STRDUPA (font_name
);
2735 if (!split_font_name (f
, &font
, 1))
2737 /* The font name may be something like `6x13'. Make
2738 sure we use the full name. */
2739 struct font_info
*font_info
;
2742 font_info
= fs_load_font (f
, FRAME_X_FONT_TABLE (f
),
2743 CHARSET_ASCII
, font_name
, -1);
2749 font
.name
= STRDUPA (font_info
->full_name
);
2750 split_font_name (f
, &font
, 1);
2753 /* FONT_NAME should not be a fontset name, here. */
2754 xassert (xstricmp (font
.fields
[XLFD_REGISTRY
], "fontset") != 0);
2757 /* Set attributes only if unspecified, otherwise face defaults for
2758 new frames would never take effect. */
2760 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2762 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
2763 + strlen (font
.fields
[XLFD_FOUNDRY
])
2765 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
2766 font
.fields
[XLFD_FAMILY
]);
2767 LFACE_FAMILY (lface
) = build_string (buffer
);
2770 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2772 pt
= xlfd_point_size (f
, &font
);
2774 LFACE_HEIGHT (lface
) = make_number (pt
);
2777 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2778 LFACE_SWIDTH (lface
) = xlfd_symbolic_swidth (&font
);
2780 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2781 LFACE_WEIGHT (lface
) = xlfd_symbolic_weight (&font
);
2783 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2784 LFACE_SLANT (lface
) = xlfd_symbolic_slant (&font
);
2786 if (free_font_name_p
)
2792 #endif /* HAVE_X_WINDOWS */
2795 /* Merge two Lisp face attribute vectors FROM and TO and store the
2796 resulting attributes in TO. Every non-nil attribute of FROM
2797 overrides the corresponding attribute of TO. */
2800 merge_face_vectors (from
, to
)
2801 Lisp_Object
*from
, *to
;
2804 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2805 if (!UNSPECIFIEDP (from
[i
]))
2810 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
2811 is a face property, determine the resulting face attributes on
2812 frame F, and store them in TO. PROP may be a single face
2813 specification or a list of such specifications. Each face
2814 specification can be
2816 1. A symbol or string naming a Lisp face.
2818 2. A property list of the form (KEYWORD VALUE ...) where each
2819 KEYWORD is a face attribute name, and value is an appropriate value
2822 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2823 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2824 for compatibility with 20.2.
2826 Face specifications earlier in lists take precedence over later
2830 merge_face_vector_with_property (f
, to
, prop
)
2837 Lisp_Object first
= XCAR (prop
);
2839 if (EQ (first
, Qforeground_color
)
2840 || EQ (first
, Qbackground_color
))
2842 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2843 . COLOR). COLOR must be a string. */
2844 Lisp_Object color_name
= XCDR (prop
);
2845 Lisp_Object color
= first
;
2847 if (STRINGP (color_name
))
2849 if (EQ (color
, Qforeground_color
))
2850 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2852 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2855 add_to_log ("Invalid face color", color_name
, Qnil
);
2857 else if (SYMBOLP (first
)
2858 && *XSYMBOL (first
)->name
->data
== ':')
2860 /* Assume this is the property list form. */
2861 while (CONSP (prop
) && CONSP (XCDR (prop
)))
2863 Lisp_Object keyword
= XCAR (prop
);
2864 Lisp_Object value
= XCAR (XCDR (prop
));
2866 if (EQ (keyword
, QCfamily
))
2868 if (STRINGP (value
))
2869 to
[LFACE_FAMILY_INDEX
] = value
;
2871 add_to_log ("Illegal face font family", value
, Qnil
);
2873 else if (EQ (keyword
, QCheight
))
2875 if (INTEGERP (value
))
2876 to
[LFACE_HEIGHT_INDEX
] = value
;
2878 add_to_log ("Illegal face font height", value
, Qnil
);
2880 else if (EQ (keyword
, QCweight
))
2883 && face_numeric_weight (value
) >= 0)
2884 to
[LFACE_WEIGHT_INDEX
] = value
;
2886 add_to_log ("Illegal face weight", value
, Qnil
);
2888 else if (EQ (keyword
, QCslant
))
2891 && face_numeric_slant (value
) >= 0)
2892 to
[LFACE_SLANT_INDEX
] = value
;
2894 add_to_log ("Illegal face slant", value
, Qnil
);
2896 else if (EQ (keyword
, QCunderline
))
2901 to
[LFACE_UNDERLINE_INDEX
] = value
;
2903 add_to_log ("Illegal face underline", value
, Qnil
);
2905 else if (EQ (keyword
, QCoverline
))
2910 to
[LFACE_OVERLINE_INDEX
] = value
;
2912 add_to_log ("Illegal face overline", value
, Qnil
);
2914 else if (EQ (keyword
, QCstrike_through
))
2919 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2921 add_to_log ("Illegal face strike-through", value
, Qnil
);
2923 else if (EQ (keyword
, QCbox
))
2926 value
= make_number (1);
2927 if (INTEGERP (value
)
2931 to
[LFACE_BOX_INDEX
] = value
;
2933 add_to_log ("Illegal face box", value
, Qnil
);
2935 else if (EQ (keyword
, QCinverse_video
)
2936 || EQ (keyword
, QCreverse_video
))
2938 if (EQ (value
, Qt
) || NILP (value
))
2939 to
[LFACE_INVERSE_INDEX
] = value
;
2941 add_to_log ("Illegal face inverse-video", value
, Qnil
);
2943 else if (EQ (keyword
, QCforeground
))
2945 if (STRINGP (value
))
2946 to
[LFACE_FOREGROUND_INDEX
] = value
;
2948 add_to_log ("Illegal face foreground", value
, Qnil
);
2950 else if (EQ (keyword
, QCbackground
))
2952 if (STRINGP (value
))
2953 to
[LFACE_BACKGROUND_INDEX
] = value
;
2955 add_to_log ("Illegal face background", value
, Qnil
);
2957 else if (EQ (keyword
, QCstipple
))
2959 #ifdef HAVE_X_WINDOWS
2960 Lisp_Object pixmap_p
= Fpixmap_spec_p (value
);
2961 if (!NILP (pixmap_p
))
2962 to
[LFACE_STIPPLE_INDEX
] = value
;
2964 add_to_log ("Illegal face stipple", value
, Qnil
);
2967 else if (EQ (keyword
, QCwidth
))
2970 && face_numeric_swidth (value
) >= 0)
2971 to
[LFACE_SWIDTH_INDEX
] = value
;
2973 add_to_log ("Illegal face width", value
, Qnil
);
2976 add_to_log ("Invalid attribute %s in face property",
2979 prop
= XCDR (XCDR (prop
));
2984 /* This is a list of face specs. Specifications at the
2985 beginning of the list take precedence over later
2986 specifications, so we have to merge starting with the
2987 last specification. */
2988 Lisp_Object next
= XCDR (prop
);
2990 merge_face_vector_with_property (f
, to
, next
);
2991 merge_face_vector_with_property (f
, to
, first
);
2996 /* PROP ought to be a face name. */
2997 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
2999 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3001 merge_face_vectors (XVECTOR (lface
)->contents
, to
);
3006 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3007 Sinternal_make_lisp_face
, 1, 2, 0,
3008 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3009 If FACE was not known as a face before, create a new one.\n\
3010 If optional argument FRAME is specified, make a frame-local face\n\
3011 for that frame. Otherwise operate on the global face definition.\n\
3012 Value is a vector of face attributes.")
3014 Lisp_Object face
, frame
;
3016 Lisp_Object global_lface
, lface
;
3020 CHECK_SYMBOL (face
, 0);
3021 global_lface
= lface_from_face_name (NULL
, face
, 0);
3025 CHECK_LIVE_FRAME (frame
, 1);
3027 lface
= lface_from_face_name (f
, face
, 0);
3030 f
= NULL
, lface
= Qnil
;
3032 /* Add a global definition if there is none. */
3033 if (NILP (global_lface
))
3035 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3037 XVECTOR (global_lface
)->contents
[0] = Qface
;
3038 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3039 Vface_new_frame_defaults
);
3041 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3042 face id to Lisp face is given by the vector lface_id_to_name.
3043 The mapping from Lisp face to Lisp face id is given by the
3044 property `face' of the Lisp face name. */
3045 if (next_lface_id
== lface_id_to_name_size
)
3047 int new_size
= max (50, 2 * lface_id_to_name_size
);
3048 int sz
= new_size
* sizeof *lface_id_to_name
;
3049 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3050 lface_id_to_name_size
= new_size
;
3053 lface_id_to_name
[next_lface_id
] = face
;
3054 Fput (face
, Qface
, make_number (next_lface_id
));
3058 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3059 XVECTOR (global_lface
)->contents
[i
] = Qunspecified
;
3061 /* Add a frame-local definition. */
3066 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3068 XVECTOR (lface
)->contents
[0] = Qface
;
3069 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3072 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3073 XVECTOR (lface
)->contents
[i
] = Qunspecified
;
3076 lface
= global_lface
;
3078 xassert (LFACEP (lface
));
3079 check_lface (lface
);
3084 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3085 Sinternal_lisp_face_p
, 1, 2, 0,
3086 "Return non-nil if FACE names a face.\n\
3087 If optional second parameter FRAME is non-nil, check for the\n\
3088 existence of a frame-local face with name FACE on that frame.\n\
3089 Otherwise check for the existence of a global face.")
3091 Lisp_Object face
, frame
;
3097 CHECK_LIVE_FRAME (frame
, 1);
3098 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3101 lface
= lface_from_face_name (NULL
, face
, 0);
3107 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3108 Sinternal_copy_lisp_face
, 4, 4, 0,
3109 "Copy face FROM to TO.\n\
3110 If FRAME it t, copy the global face definition of FROM to the\n\
3111 global face definition of TO. Otherwise, copy the frame-local\n\
3112 definition of FROM on FRAME to the frame-local definition of TO\n\
3113 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3116 (from
, to
, frame
, new_frame
)
3117 Lisp_Object from
, to
, frame
, new_frame
;
3119 Lisp_Object lface
, copy
;
3121 CHECK_SYMBOL (from
, 0);
3122 CHECK_SYMBOL (to
, 1);
3123 if (NILP (new_frame
))
3128 /* Copy global definition of FROM. We don't make copies of
3129 strings etc. because 20.2 didn't do it either. */
3130 lface
= lface_from_face_name (NULL
, from
, 1);
3131 copy
= Finternal_make_lisp_face (to
, Qnil
);
3135 /* Copy frame-local definition of FROM. */
3136 CHECK_LIVE_FRAME (frame
, 2);
3137 CHECK_LIVE_FRAME (new_frame
, 3);
3138 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3139 copy
= Finternal_make_lisp_face (to
, new_frame
);
3142 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3143 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3149 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3150 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3151 "Set attribute ATTR of FACE to VALUE.\n\
3152 If optional argument FRAME is given, set the face attribute of face FACE\n\
3153 on that frame. If FRAME is t, set the attribute of the default for face\n\
3154 FACE (for new frames). If FRAME is omitted or nil, use the selected\n\
3156 (face
, attr
, value
, frame
)
3157 Lisp_Object face
, attr
, value
, frame
;
3160 Lisp_Object old_value
= Qnil
;
3161 int font_related_attr_p
= 0;
3163 CHECK_SYMBOL (face
, 0);
3164 CHECK_SYMBOL (attr
, 1);
3166 face
= resolve_face_name (face
);
3168 /* Set lface to the Lisp attribute vector of FACE. */
3170 lface
= lface_from_face_name (NULL
, face
, 1);
3174 frame
= selected_frame
;
3176 CHECK_LIVE_FRAME (frame
, 3);
3177 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3179 /* If a frame-local face doesn't exist yet, create one. */
3181 lface
= Finternal_make_lisp_face (face
, frame
);
3184 if (EQ (attr
, QCfamily
))
3186 if (!UNSPECIFIEDP (value
))
3188 CHECK_STRING (value
, 3);
3189 if (XSTRING (value
)->size
== 0)
3190 signal_error ("Invalid face family", value
);
3192 old_value
= LFACE_FAMILY (lface
);
3193 LFACE_FAMILY (lface
) = value
;
3194 font_related_attr_p
= 1;
3196 else if (EQ (attr
, QCheight
))
3198 if (!UNSPECIFIEDP (value
))
3200 CHECK_NUMBER (value
, 3);
3201 if (XINT (value
) <= 0)
3202 signal_error ("Invalid face height", value
);
3204 old_value
= LFACE_HEIGHT (lface
);
3205 LFACE_HEIGHT (lface
) = value
;
3206 font_related_attr_p
= 1;
3208 else if (EQ (attr
, QCweight
))
3210 if (!UNSPECIFIEDP (value
))
3212 CHECK_SYMBOL (value
, 3);
3213 if (face_numeric_weight (value
) < 0)
3214 signal_error ("Invalid face weight", value
);
3216 old_value
= LFACE_WEIGHT (lface
);
3217 LFACE_WEIGHT (lface
) = value
;
3218 font_related_attr_p
= 1;
3220 else if (EQ (attr
, QCslant
))
3222 if (!UNSPECIFIEDP (value
))
3224 CHECK_SYMBOL (value
, 3);
3225 if (face_numeric_slant (value
) < 0)
3226 signal_error ("Invalid face slant", value
);
3228 old_value
= LFACE_SLANT (lface
);
3229 LFACE_SLANT (lface
) = value
;
3230 font_related_attr_p
= 1;
3232 else if (EQ (attr
, QCunderline
))
3234 if (!UNSPECIFIEDP (value
))
3235 if ((SYMBOLP (value
)
3237 && !EQ (value
, Qnil
))
3238 /* Underline color. */
3240 && XSTRING (value
)->size
== 0))
3241 signal_error ("Invalid face underline", value
);
3243 old_value
= LFACE_UNDERLINE (lface
);
3244 LFACE_UNDERLINE (lface
) = value
;
3246 else if (EQ (attr
, QCoverline
))
3248 if (!UNSPECIFIEDP (value
))
3249 if ((SYMBOLP (value
)
3251 && !EQ (value
, Qnil
))
3252 /* Overline color. */
3254 && XSTRING (value
)->size
== 0))
3255 signal_error ("Invalid face overline", value
);
3257 old_value
= LFACE_OVERLINE (lface
);
3258 LFACE_OVERLINE (lface
) = value
;
3260 else if (EQ (attr
, QCstrike_through
))
3262 if (!UNSPECIFIEDP (value
))
3263 if ((SYMBOLP (value
)
3265 && !EQ (value
, Qnil
))
3266 /* Strike-through color. */
3268 && XSTRING (value
)->size
== 0))
3269 signal_error ("Invalid face strike-through", value
);
3271 old_value
= LFACE_STRIKE_THROUGH (lface
);
3272 LFACE_STRIKE_THROUGH (lface
) = value
;
3274 else if (EQ (attr
, QCbox
))
3278 /* Allow t meaning a simple box of width 1 in foreground color
3281 value
= make_number (1);
3283 if (UNSPECIFIEDP (value
))
3285 else if (NILP (value
))
3287 else if (INTEGERP (value
))
3288 valid_p
= XINT (value
) > 0;
3289 else if (STRINGP (value
))
3290 valid_p
= XSTRING (value
)->size
> 0;
3291 else if (CONSP (value
))
3307 if (EQ (k
, QCline_width
))
3309 if (!INTEGERP (v
) || XINT (v
) <= 0)
3312 else if (EQ (k
, QCcolor
))
3314 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3317 else if (EQ (k
, QCstyle
))
3319 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3326 valid_p
= NILP (tem
);
3332 signal_error ("Invalid face box", value
);
3334 old_value
= LFACE_BOX (lface
);
3335 LFACE_BOX (lface
) = value
;
3337 else if (EQ (attr
, QCinverse_video
)
3338 || EQ (attr
, QCreverse_video
))
3340 if (!UNSPECIFIEDP (value
))
3342 CHECK_SYMBOL (value
, 3);
3343 if (!EQ (value
, Qt
) && !NILP (value
))
3344 signal_error ("Invalid inverse-video face attribute value", value
);
3346 old_value
= LFACE_INVERSE (lface
);
3347 LFACE_INVERSE (lface
) = value
;
3349 else if (EQ (attr
, QCforeground
))
3351 if (!UNSPECIFIEDP (value
))
3353 /* Don't check for valid color names here because it depends
3354 on the frame (display) whether the color will be valid
3355 when the face is realized. */
3356 CHECK_STRING (value
, 3);
3357 if (XSTRING (value
)->size
== 0)
3358 signal_error ("Empty foreground color value", value
);
3360 old_value
= LFACE_FOREGROUND (lface
);
3361 LFACE_FOREGROUND (lface
) = value
;
3363 else if (EQ (attr
, QCbackground
))
3365 if (!UNSPECIFIEDP (value
))
3367 /* Don't check for valid color names here because it depends
3368 on the frame (display) whether the color will be valid
3369 when the face is realized. */
3370 CHECK_STRING (value
, 3);
3371 if (XSTRING (value
)->size
== 0)
3372 signal_error ("Empty background color value", value
);
3374 old_value
= LFACE_BACKGROUND (lface
);
3375 LFACE_BACKGROUND (lface
) = value
;
3377 else if (EQ (attr
, QCstipple
))
3379 #ifdef HAVE_X_WINDOWS
3380 if (!UNSPECIFIEDP (value
)
3382 && NILP (Fpixmap_spec_p (value
)))
3383 signal_error ("Invalid stipple attribute", value
);
3384 old_value
= LFACE_STIPPLE (lface
);
3385 LFACE_STIPPLE (lface
) = value
;
3386 #endif /* HAVE_X_WINDOWS */
3388 else if (EQ (attr
, QCwidth
))
3390 if (!UNSPECIFIEDP (value
))
3392 CHECK_SYMBOL (value
, 3);
3393 if (face_numeric_swidth (value
) < 0)
3394 signal_error ("Invalid face width", value
);
3396 old_value
= LFACE_SWIDTH (lface
);
3397 LFACE_SWIDTH (lface
) = value
;
3398 font_related_attr_p
= 1;
3400 else if (EQ (attr
, QCfont
))
3402 #ifdef HAVE_X_WINDOWS
3403 /* Set font-related attributes of the Lisp face from an
3407 CHECK_STRING (value
, 3);
3409 f
= SELECTED_FRAME ();
3411 f
= check_x_frame (frame
);
3413 if (!set_lface_from_font_name (f
, lface
, XSTRING (value
)->data
, 1))
3414 signal_error ("Invalid font name", value
);
3416 font_related_attr_p
= 1;
3417 #endif /* HAVE_X_WINDOWS */
3419 else if (EQ (attr
, QCbold
))
3421 old_value
= LFACE_WEIGHT (lface
);
3422 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3423 font_related_attr_p
= 1;
3425 else if (EQ (attr
, QCitalic
))
3427 old_value
= LFACE_SLANT (lface
);
3428 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3429 font_related_attr_p
= 1;
3432 signal_error ("Invalid face attribute name", attr
);
3434 /* Changing a named face means that all realized faces depending on
3435 that face are invalid. Since we cannot tell which realized faces
3436 depend on the face, make sure they are all removed. This is done
3437 by incrementing face_change_count. The next call to
3438 init_iterator will then free realized faces. */
3440 && (EQ (attr
, QCfont
)
3441 || NILP (Fequal (old_value
, value
))))
3443 ++face_change_count
;
3444 ++windows_or_buffers_changed
;
3447 #ifdef HAVE_X_WINDOWS
3450 && !UNSPECIFIEDP (value
)
3451 && NILP (Fequal (old_value
, value
)))
3457 if (EQ (face
, Qdefault
))
3459 /* Changed font-related attributes of the `default' face are
3460 reflected in changed `font' frame parameters. */
3461 if (font_related_attr_p
3462 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3463 set_font_frame_param (frame
, lface
);
3464 else if (EQ (attr
, QCforeground
))
3465 param
= Qforeground_color
;
3466 else if (EQ (attr
, QCbackground
))
3467 param
= Qbackground_color
;
3469 else if (EQ (face
, Qscroll_bar
))
3471 /* Changing the colors of `scroll-bar' sets frame parameters
3472 `scroll-bar-foreground' and `scroll-bar-background'. */
3473 if (EQ (attr
, QCforeground
))
3474 param
= Qscroll_bar_foreground
;
3475 else if (EQ (attr
, QCbackground
))
3476 param
= Qscroll_bar_background
;
3478 else if (EQ (face
, Qborder
))
3480 /* Changing background color of `border' sets frame parameter
3482 if (EQ (attr
, QCbackground
))
3483 param
= Qborder_color
;
3485 else if (EQ (face
, Qcursor
))
3487 /* Changing background color of `cursor' sets frame parameter
3489 if (EQ (attr
, QCbackground
))
3490 param
= Qcursor_color
;
3492 else if (EQ (face
, Qmouse
))
3494 /* Changing background color of `mouse' sets frame parameter
3496 if (EQ (attr
, QCbackground
))
3497 param
= Qmouse_color
;
3500 if (SYMBOLP (param
))
3501 Fmodify_frame_parameters (frame
, Fcons (Fcons (param
, value
), Qnil
));
3504 #endif /* HAVE_X_WINDOWS */
3510 #ifdef HAVE_X_WINDOWS
3512 /* Set the `font' frame parameter of FRAME according to `default' face
3513 attributes LFACE. */
3516 set_font_frame_param (frame
, lface
)
3517 Lisp_Object frame
, lface
;
3519 struct frame
*f
= XFRAME (frame
);
3520 Lisp_Object frame_font
;
3524 /* Get FRAME's font parameter. */
3525 frame_font
= Fassq (Qfont
, f
->param_alist
);
3526 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
3527 frame_font
= XCDR (frame_font
);
3529 fontset
= fs_query_fontset (f
, XSTRING (frame_font
)->data
);
3532 /* Frame parameter is a fontset name. Modify the fontset so
3533 that all its fonts reflect face attributes LFACE. */
3535 struct fontset_info
*fontset_info
;
3537 fontset_info
= FRAME_FONTSET_DATA (f
)->fontset_table
[fontset
];
3539 for (charset
= 0; charset
< MAX_CHARSET
; ++charset
)
3540 if (fontset_info
->fontname
[charset
])
3542 font
= choose_face_fontset_font (f
, XVECTOR (lface
)->contents
,
3544 Fset_fontset_font (frame_font
, CHARSET_SYMBOL (charset
),
3545 build_string (font
), frame
);
3551 /* Frame parameter is an X font name. I believe this can
3552 only happen in unibyte mode. */
3553 font
= choose_face_font (f
, XVECTOR (lface
)->contents
,
3554 -1, Vface_default_registry
);
3557 store_frame_param (f
, Qfont
, build_string (font
));
3564 /* Update the corresponding face when frame parameter PARAM on frame F
3565 has been assigned the value NEW_VALUE. */
3568 update_face_from_frame_parameter (f
, param
, new_value
)
3570 Lisp_Object param
, new_value
;
3574 /* If there are no faces yet, give up. This is the case when called
3575 from Fx_create_frame, and we do the necessary things later in
3576 face-set-after-frame-defaults. */
3577 if (NILP (f
->face_alist
))
3580 if (EQ (param
, Qforeground_color
))
3582 lface
= lface_from_face_name (f
, Qdefault
, 1);
3583 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3584 ? new_value
: Qunspecified
);
3585 realize_basic_faces (f
);
3587 else if (EQ (param
, Qbackground_color
))
3591 /* Changing the background color might change the background
3592 mode, so that we have to load new defface specs. Call
3593 frame-update-face-colors to do that. */
3594 XSETFRAME (frame
, f
);
3595 call1 (Qframe_update_face_colors
, frame
);
3597 lface
= lface_from_face_name (f
, Qdefault
, 1);
3598 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3599 ? new_value
: Qunspecified
);
3600 realize_basic_faces (f
);
3602 if (EQ (param
, Qborder_color
))
3604 lface
= lface_from_face_name (f
, Qborder
, 1);
3605 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3606 ? new_value
: Qunspecified
);
3608 else if (EQ (param
, Qcursor_color
))
3610 lface
= lface_from_face_name (f
, Qcursor
, 1);
3611 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3612 ? new_value
: Qunspecified
);
3614 else if (EQ (param
, Qmouse_color
))
3616 lface
= lface_from_face_name (f
, Qmouse
, 1);
3617 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3618 ? new_value
: Qunspecified
);
3623 /* Get the value of X resource RESOURCE, class CLASS for the display
3624 of frame FRAME. This is here because ordinary `x-get-resource'
3625 doesn't take a frame argument. */
3627 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3628 Sinternal_face_x_get_resource
, 3, 3, 0, "")
3629 (resource
, class, frame
)
3630 Lisp_Object resource
, class, frame
;
3633 CHECK_STRING (resource
, 0);
3634 CHECK_STRING (class, 1);
3635 CHECK_LIVE_FRAME (frame
, 2);
3637 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3638 resource
, class, Qnil
, Qnil
);
3644 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3645 If VALUE is "on" or "true", return t. If VALUE is "off" or
3646 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3647 error; if SIGNAL_P is zero, return 0. */
3650 face_boolean_x_resource_value (value
, signal_p
)
3654 Lisp_Object result
= make_number (0);
3656 xassert (STRINGP (value
));
3658 if (xstricmp (XSTRING (value
)->data
, "on") == 0
3659 || xstricmp (XSTRING (value
)->data
, "true") == 0)
3661 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
3662 || xstricmp (XSTRING (value
)->data
, "false") == 0)
3664 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3665 result
= Qunspecified
;
3667 signal_error ("Invalid face attribute value from X resource", value
);
3673 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3674 Finternal_set_lisp_face_attribute_from_resource
,
3675 Sinternal_set_lisp_face_attribute_from_resource
,
3677 (face
, attr
, value
, frame
)
3678 Lisp_Object face
, attr
, value
, frame
;
3680 CHECK_SYMBOL (face
, 0);
3681 CHECK_SYMBOL (attr
, 1);
3682 CHECK_STRING (value
, 2);
3684 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3685 value
= Qunspecified
;
3686 else if (EQ (attr
, QCheight
))
3688 value
= Fstring_to_number (value
, make_number (10));
3689 if (XINT (value
) <= 0)
3690 signal_error ("Invalid face height from X resource", value
);
3692 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3693 value
= face_boolean_x_resource_value (value
, 1);
3694 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3695 value
= intern (XSTRING (value
)->data
);
3696 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3697 value
= face_boolean_x_resource_value (value
, 1);
3698 else if (EQ (attr
, QCunderline
)
3699 || EQ (attr
, QCoverline
)
3700 || EQ (attr
, QCstrike_through
)
3701 || EQ (attr
, QCbox
))
3703 Lisp_Object boolean_value
;
3705 /* If the result of face_boolean_x_resource_value is t or nil,
3706 VALUE does NOT specify a color. */
3707 boolean_value
= face_boolean_x_resource_value (value
, 0);
3708 if (SYMBOLP (boolean_value
))
3709 value
= boolean_value
;
3712 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3717 /***********************************************************************
3719 ***********************************************************************/
3721 #ifdef USE_X_TOOLKIT
3723 /* Structure used to pass X resources to functions called via
3724 XtApplyToWidgets. */
3735 static void xm_apply_resources
P_ ((Widget
, XtPointer
));
3736 static void xm_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
3739 /* Set widget W's X resources from P which points to an x_resources
3740 structure. If W is a cascade button, apply resources to W's
3744 xm_apply_resources (w
, p
)
3749 struct x_resources
*res
= (struct x_resources
*) p
;
3751 XtSetValues (w
, res
->av
, res
->ac
);
3752 XtVaGetValues (w
, XmNsubMenuId
, &submenu
, NULL
);
3755 XtSetValues (submenu
, res
->av
, res
->ac
);
3756 XtApplyToWidgets (submenu
, xm_apply_resources
, p
);
3761 /* Set X resources of menu-widget WIDGET on frame F from face `menu'.
3762 This is the LessTif/Motif version. As of LessTif 0.88 it has the
3765 1. Setting the XmNfontList resource leads to an infinite loop
3766 somewhere in LessTif. */
3769 xm_set_menu_resources_from_menu_face (f
, widget
)
3779 lface
= lface_from_face_name (f
, Qmenu
, 1);
3780 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3782 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
3784 XtSetArg (av
[ac
], XmNforeground
, face
->foreground
);
3788 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
3790 XtSetArg (av
[ac
], XmNbackground
, face
->background
);
3794 /* If any font-related attribute of `menu' is set, set the font. */
3796 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3797 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3798 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3799 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3800 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3802 #if 0 /* Setting the font leads to an infinite loop somewhere
3803 in LessTif during geometry computation. */
3805 fe
= XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT
, face
->font
);
3806 fl
= XmFontListAppendEntry (NULL
, fe
);
3807 XtSetArg (av
[ac
], XmNfontList
, fl
);
3812 xassert (ac
<= sizeof av
/ sizeof *av
);
3816 struct x_resources res
;
3818 XtSetValues (widget
, av
, ac
);
3819 res
.av
= av
, res
.ac
= ac
;
3820 XtApplyToWidgets (widget
, xm_apply_resources
, &res
);
3822 XmFontListFree (fl
);
3827 #endif /* USE_MOTIF */
3831 static void xl_apply_resources
P_ ((Widget
, XtPointer
));
3832 static void xl_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
3835 /* Set widget W's resources from P which points to an x_resources
3839 xl_apply_resources (widget
, p
)
3843 struct x_resources
*res
= (struct x_resources
*) p
;
3844 XtSetValues (widget
, res
->av
, res
->ac
);
3848 /* On frame F, set X resources of menu-widget WIDGET from face `menu'.
3849 This is the Lucid version. */
3852 xl_set_menu_resources_from_menu_face (f
, widget
)
3861 lface
= lface_from_face_name (f
, Qmenu
, 1);
3862 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3864 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
3866 XtSetArg (av
[ac
], XtNforeground
, face
->foreground
);
3870 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
3872 XtSetArg (av
[ac
], XtNbackground
, face
->background
);
3877 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3878 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3879 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3880 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3881 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3883 XtSetArg (av
[ac
], XtNfont
, face
->font
);
3889 struct x_resources res
;
3891 XtSetValues (widget
, av
, ac
);
3893 /* We must do children here in case we're handling a pop-up menu
3894 in which case WIDGET is a popup shell. XtApplyToWidgets
3895 is a function from lwlib. */
3896 res
.av
= av
, res
.ac
= ac
;
3897 XtApplyToWidgets (widget
, xl_apply_resources
, &res
);
3901 #endif /* USE_LUCID */
3904 /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */
3907 x_set_menu_resources_from_menu_face (f
, widget
)
3912 xl_set_menu_resources_from_menu_face (f
, widget
);
3915 xm_set_menu_resources_from_menu_face (f
, widget
);
3919 #endif /* USE_X_TOOLKIT */
3921 #endif /* HAVE_X_WINDOWS */
3925 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3926 Sinternal_get_lisp_face_attribute
,
3928 "Return face attribute KEYWORD of face SYMBOL.\n\
3929 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
3930 face attribute name, signal an error.\n\
3931 If the optional argument FRAME is given, report on face FACE in that\n\
3932 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
3933 frames). If FRAME is omitted or nil, use the selected frame.")
3934 (symbol
, keyword
, frame
)
3935 Lisp_Object symbol
, keyword
, frame
;
3937 Lisp_Object lface
, value
= Qnil
;
3939 CHECK_SYMBOL (symbol
, 0);
3940 CHECK_SYMBOL (keyword
, 1);
3943 lface
= lface_from_face_name (NULL
, symbol
, 1);
3947 frame
= selected_frame
;
3948 CHECK_LIVE_FRAME (frame
, 2);
3949 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3952 if (EQ (keyword
, QCfamily
))
3953 value
= LFACE_FAMILY (lface
);
3954 else if (EQ (keyword
, QCheight
))
3955 value
= LFACE_HEIGHT (lface
);
3956 else if (EQ (keyword
, QCweight
))
3957 value
= LFACE_WEIGHT (lface
);
3958 else if (EQ (keyword
, QCslant
))
3959 value
= LFACE_SLANT (lface
);
3960 else if (EQ (keyword
, QCunderline
))
3961 value
= LFACE_UNDERLINE (lface
);
3962 else if (EQ (keyword
, QCoverline
))
3963 value
= LFACE_OVERLINE (lface
);
3964 else if (EQ (keyword
, QCstrike_through
))
3965 value
= LFACE_STRIKE_THROUGH (lface
);
3966 else if (EQ (keyword
, QCbox
))
3967 value
= LFACE_BOX (lface
);
3968 else if (EQ (keyword
, QCinverse_video
)
3969 || EQ (keyword
, QCreverse_video
))
3970 value
= LFACE_INVERSE (lface
);
3971 else if (EQ (keyword
, QCforeground
))
3972 value
= LFACE_FOREGROUND (lface
);
3973 else if (EQ (keyword
, QCbackground
))
3974 value
= LFACE_BACKGROUND (lface
);
3975 else if (EQ (keyword
, QCstipple
))
3976 value
= LFACE_STIPPLE (lface
);
3977 else if (EQ (keyword
, QCwidth
))
3978 value
= LFACE_SWIDTH (lface
);
3980 signal_error ("Invalid face attribute name", keyword
);
3986 DEFUN ("internal-lisp-face-attribute-values",
3987 Finternal_lisp_face_attribute_values
,
3988 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3989 "Return a list of valid discrete values for face attribute ATTR.\n\
3990 Value is nil if ATTR doesn't have a discrete set of valid values.")
3994 Lisp_Object result
= Qnil
;
3996 CHECK_SYMBOL (attr
, 0);
3998 if (EQ (attr
, QCweight
)
3999 || EQ (attr
, QCslant
)
4000 || EQ (attr
, QCwidth
))
4002 /* Extract permissible symbols from tables. */
4003 struct table_entry
*table
;
4006 if (EQ (attr
, QCweight
))
4007 table
= weight_table
, dim
= DIM (weight_table
);
4008 else if (EQ (attr
, QCslant
))
4009 table
= slant_table
, dim
= DIM (slant_table
);
4011 table
= swidth_table
, dim
= DIM (swidth_table
);
4013 for (i
= 0; i
< dim
; ++i
)
4015 Lisp_Object symbol
= *table
[i
].symbol
;
4016 Lisp_Object tail
= result
;
4019 && !EQ (XCAR (tail
), symbol
))
4023 result
= Fcons (symbol
, result
);
4026 else if (EQ (attr
, QCunderline
))
4027 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4028 else if (EQ (attr
, QCoverline
))
4029 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4030 else if (EQ (attr
, QCstrike_through
))
4031 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4032 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4033 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4039 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4040 Sinternal_merge_in_global_face
, 2, 2, 0,
4041 "Add attributes from frame-default definition of FACE to FACE on FRAME.")
4043 Lisp_Object face
, frame
;
4045 Lisp_Object global_lface
, local_lface
;
4046 CHECK_LIVE_FRAME (frame
, 1);
4047 global_lface
= lface_from_face_name (NULL
, face
, 1);
4048 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4049 if (NILP (local_lface
))
4050 local_lface
= Finternal_make_lisp_face (face
, frame
);
4051 merge_face_vectors (XVECTOR (global_lface
)->contents
,
4052 XVECTOR (local_lface
)->contents
);
4057 /* The following function is implemented for compatibility with 20.2.
4058 The function is used in x-resolve-fonts when it is asked to
4059 return fonts with the same size as the font of a face. This is
4060 done in fontset.el. */
4062 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4063 "Return the font name of face FACE, or nil if it is unspecified.\n\
4064 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4065 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4066 The font default for a face is either nil, or a list\n\
4067 of the form (bold), (italic) or (bold italic).\n\
4068 If FRAME is omitted or nil, use the selected frame.")
4070 Lisp_Object face
, frame
;
4074 Lisp_Object result
= Qnil
;
4075 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4077 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4078 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4079 result
= Fcons (Qbold
, result
);
4081 if (!NILP (LFACE_SLANT (lface
))
4082 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4083 result
= Fcons (Qitalic
, result
);
4089 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4090 int face_id
= lookup_named_face (f
, face
, CHARSET_ASCII
);
4091 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4092 return build_string (face
->font_name
);
4097 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4098 all attributes are `equal'. Tries to be fast because this function
4099 is called quite often. */
4102 lface_equal_p (v1
, v2
)
4103 Lisp_Object
*v1
, *v2
;
4107 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4109 Lisp_Object a
= v1
[i
];
4110 Lisp_Object b
= v2
[i
];
4112 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4113 and the other is specified. */
4114 equal_p
= XTYPE (a
) == XTYPE (b
);
4123 equal_p
= (XSTRING (a
)->size
== XSTRING (b
)->size
4124 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4125 XSTRING (a
)->size
) == 0);
4134 equal_p
= !NILP (Fequal (a
, b
));
4144 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4145 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4146 "True if FACE1 and FACE2 are equal.\n\
4147 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4148 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4149 If FRAME is omitted or nil, use the selected frame.")
4150 (face1
, face2
, frame
)
4151 Lisp_Object face1
, face2
, frame
;
4155 Lisp_Object lface1
, lface2
;
4160 /* Don't use check_x_frame here because this function is called
4161 before X frames exist. At that time, if FRAME is nil,
4162 selected_frame will be used which is the frame dumped with
4163 Emacs. That frame is not an X frame. */
4164 f
= frame_or_selected_frame (frame
, 2);
4166 lface1
= lface_from_face_name (NULL
, face1
, 1);
4167 lface2
= lface_from_face_name (NULL
, face2
, 1);
4168 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4169 XVECTOR (lface2
)->contents
);
4170 return equal_p
? Qt
: Qnil
;
4174 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4175 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4176 "True if FACE has no attribute specified.\n\
4177 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4178 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4179 If FRAME is omitted or nil, use the selected frame.")
4181 Lisp_Object face
, frame
;
4188 frame
= selected_frame
;
4189 CHECK_LIVE_FRAME (frame
, 0);
4193 lface
= lface_from_face_name (NULL
, face
, 1);
4195 lface
= lface_from_face_name (f
, face
, 1);
4197 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4198 if (!UNSPECIFIEDP (XVECTOR (lface
)->contents
[i
]))
4201 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4205 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4207 "Return an alist of frame-local faces defined on FRAME.\n\
4208 For internal use only.")
4212 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4213 return f
->face_alist
;
4217 /* Return a hash code for Lisp string STRING with case ignored. Used
4218 below in computing a hash value for a Lisp face. */
4220 static INLINE
unsigned
4221 hash_string_case_insensitive (string
)
4226 xassert (STRINGP (string
));
4227 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4228 hash
= (hash
<< 1) ^ tolower (*s
);
4233 /* Return a hash code for face attribute vector V. */
4235 static INLINE
unsigned
4239 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4240 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4241 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4242 ^ (unsigned) v
[LFACE_WEIGHT_INDEX
]
4243 ^ (unsigned) v
[LFACE_SLANT_INDEX
]
4244 ^ (unsigned) v
[LFACE_SWIDTH_INDEX
]
4245 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4249 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4250 considering charsets/registries). They do if they specify the same
4251 family, point size, weight, width and slant. Both LFACE1 and
4252 LFACE2 must be fully-specified. */
4255 lface_same_font_attributes_p (lface1
, lface2
)
4256 Lisp_Object
*lface1
, *lface2
;
4258 xassert (lface_fully_specified_p (lface1
)
4259 && lface_fully_specified_p (lface2
));
4260 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4261 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4262 && (XFASTINT (lface1
[LFACE_HEIGHT_INDEX
])
4263 == XFASTINT (lface2
[LFACE_HEIGHT_INDEX
]))
4264 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4265 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4266 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
]));
4271 /***********************************************************************
4273 ***********************************************************************/
4275 /* Allocate and return a new realized face for Lisp face attribute
4276 vector ATTR, charset CHARSET, and registry REGISTRY. */
4278 static struct face
*
4279 make_realized_face (attr
, charset
, registry
)
4282 Lisp_Object registry
;
4284 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4285 bzero (face
, sizeof *face
);
4286 face
->charset
= charset
;
4287 face
->registry
= registry
;
4288 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4293 /* Free realized face FACE, including its X resources. FACE may
4297 free_realized_face (f
, face
)
4303 #ifdef HAVE_X_WINDOWS
4308 x_free_gc (f
, face
->gc
);
4312 free_face_colors (f
, face
);
4313 x_destroy_bitmap (f
, face
->stipple
);
4315 #endif /* HAVE_X_WINDOWS */
4322 /* Prepare face FACE for subsequent display on frame F. This
4323 allocated GCs if they haven't been allocated yet or have been freed
4324 by clearing the face cache. */
4327 prepare_face_for_display (f
, face
)
4331 #ifdef HAVE_X_WINDOWS
4332 xassert (FRAME_X_P (f
));
4337 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4339 xgcv
.foreground
= face
->foreground
;
4340 xgcv
.background
= face
->background
;
4341 xgcv
.graphics_exposures
= False
;
4343 /* The font of FACE may be null if we couldn't load it. */
4346 xgcv
.font
= face
->font
->fid
;
4353 xgcv
.fill_style
= FillOpaqueStippled
;
4354 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4355 mask
|= GCFillStyle
| GCStipple
;
4358 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4365 /* Non-zero if FACE is suitable for displaying ISO8859-1. Used in
4366 macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for
4367 ISO8859-1 if the ASCII face suffices. */
4370 face_suitable_for_iso8859_1_p (face
)
4373 int len
= strlen (face
->font_name
);
4374 return len
>= 9 && xstricmp (face
->font_name
+ len
- 9, "iso8859-1") == 0;
4378 /* Value is non-zero if FACE is suitable for displaying characters
4379 of CHARSET. CHARSET < 0 means unibyte text. */
4382 face_suitable_for_charset_p (face
, charset
)
4390 if (EQ (face
->registry
, Vface_default_registry
)
4391 || !NILP (Fequal (face
->registry
, Vface_default_registry
)))
4394 else if (face
->charset
== charset
)
4396 else if (face
->charset
== CHARSET_ASCII
4397 && charset
== charset_latin_iso8859_1
)
4398 suitable_p
= face_suitable_for_iso8859_1_p (face
);
4399 else if (face
->charset
== charset_latin_iso8859_1
4400 && charset
== CHARSET_ASCII
)
4408 /***********************************************************************
4410 ***********************************************************************/
4412 /* Return a new face cache for frame F. */
4414 static struct face_cache
*
4418 struct face_cache
*c
;
4421 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4422 bzero (c
, sizeof *c
);
4423 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4424 c
->buckets
= (struct face
**) xmalloc (size
);
4425 bzero (c
->buckets
, size
);
4427 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4433 /* Clear out all graphics contexts for all realized faces, except for
4434 the basic faces. This should be done from time to time just to avoid
4435 keeping too many graphics contexts that are no longer needed. */
4439 struct face_cache
*c
;
4441 if (c
&& FRAME_X_P (c
->f
))
4443 #ifdef HAVE_X_WINDOWS
4445 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4447 struct face
*face
= c
->faces_by_id
[i
];
4448 if (face
&& face
->gc
)
4450 x_free_gc (c
->f
, face
->gc
);
4454 #endif /* HAVE_X_WINDOWS */
4459 /* Free all realized faces in face cache C, including basic faces. C
4460 may be null. If faces are freed, make sure the frame's current
4461 matrix is marked invalid, so that a display caused by an expose
4462 event doesn't try to use faces we destroyed. */
4465 free_realized_faces (c
)
4466 struct face_cache
*c
;
4471 struct frame
*f
= c
->f
;
4473 for (i
= 0; i
< c
->used
; ++i
)
4475 free_realized_face (f
, c
->faces_by_id
[i
]);
4476 c
->faces_by_id
[i
] = NULL
;
4480 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4481 bzero (c
->buckets
, size
);
4483 /* Must do a thorough redisplay the next time. Mark current
4484 matrices as invalid because they will reference faces freed
4485 above. This function is also called when a frame is
4486 destroyed. In this case, the root window of F is nil. */
4487 if (WINDOWP (f
->root_window
))
4489 clear_current_matrices (f
);
4490 ++windows_or_buffers_changed
;
4496 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4497 This is done after attributes of a named face have been changed,
4498 because we can't tell which realized faces depend on that face. */
4501 free_all_realized_faces (frame
)
4507 FOR_EACH_FRAME (rest
, frame
)
4508 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4511 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4515 /* Free face cache C and faces in it, including their X resources. */
4519 struct face_cache
*c
;
4523 free_realized_faces (c
);
4525 xfree (c
->faces_by_id
);
4531 /* Cache realized face FACE in face cache C. HASH is the hash value
4532 of FACE. If FACE->fontset >= 0, add the new face to the end of the
4533 collision list of the face hash table of C. This is done because
4534 otherwise lookup_face would find FACE for every charset, even if
4535 faces with the same attributes but for specific charsets exist. */
4538 cache_face (c
, face
, hash
)
4539 struct face_cache
*c
;
4543 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4547 if (face
->fontset
>= 0)
4549 struct face
*last
= c
->buckets
[i
];
4560 c
->buckets
[i
] = face
;
4561 face
->prev
= face
->next
= NULL
;
4567 face
->next
= c
->buckets
[i
];
4569 face
->next
->prev
= face
;
4570 c
->buckets
[i
] = face
;
4573 /* Find a free slot in C->faces_by_id and use the index of the free
4574 slot as FACE->id. */
4575 for (i
= 0; i
< c
->used
; ++i
)
4576 if (c
->faces_by_id
[i
] == NULL
)
4580 /* Maybe enlarge C->faces_by_id. */
4581 if (i
== c
->used
&& c
->used
== c
->size
)
4583 int new_size
= 2 * c
->size
;
4584 int sz
= new_size
* sizeof *c
->faces_by_id
;
4585 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4590 /* Check that FACE got a unique id. */
4595 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4596 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4602 #endif /* GLYPH_DEBUG */
4604 c
->faces_by_id
[i
] = face
;
4610 /* Remove face FACE from cache C. */
4613 uncache_face (c
, face
)
4614 struct face_cache
*c
;
4617 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4620 face
->prev
->next
= face
->next
;
4622 c
->buckets
[i
] = face
->next
;
4625 face
->next
->prev
= face
->prev
;
4627 c
->faces_by_id
[face
->id
] = NULL
;
4628 if (face
->id
== c
->used
)
4633 /* Look up a realized face with face attributes ATTR in the face cache
4634 of frame F. The face will be used to display characters of
4635 CHARSET. CHARSET < 0 means the face will be used to display
4636 unibyte text. The value of face-default-registry is used to choose
4637 a font for the face in that case. Value is the ID of the face
4638 found. If no suitable face is found, realize a new one. */
4641 lookup_face (f
, attr
, charset
)
4646 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
4651 xassert (c
!= NULL
);
4652 check_lface_attrs (attr
);
4654 /* Look up ATTR in the face cache. */
4655 hash
= lface_hash (attr
);
4656 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4658 for (face
= c
->buckets
[i
]; face
; face
= face
->next
)
4659 if (face
->hash
== hash
4660 && (!FRAME_WINDOW_P (f
)
4661 || FACE_SUITABLE_FOR_CHARSET_P (face
, charset
))
4662 && lface_equal_p (face
->lface
, attr
))
4665 /* If not found, realize a new face. */
4668 face
= realize_face (c
, attr
, charset
);
4669 cache_face (c
, face
, hash
);
4673 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4675 xassert (charset
< 0 || FACE_SUITABLE_FOR_CHARSET_P (face
, charset
));
4676 #endif /* GLYPH_DEBUG */
4682 /* Return the face id of the realized face for named face SYMBOL on
4683 frame F suitable for displaying characters from CHARSET. CHARSET <
4684 0 means unibyte text. */
4687 lookup_named_face (f
, symbol
, charset
)
4692 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4693 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4694 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4696 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
4697 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4698 merge_face_vectors (symbol_attrs
, attrs
);
4699 return lookup_face (f
, attrs
, charset
);
4703 /* Return the ID of the realized ASCII face of Lisp face with ID
4704 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4707 ascii_face_of_lisp_face (f
, lface_id
)
4713 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4715 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4716 face_id
= lookup_named_face (f
, face_name
, CHARSET_ASCII
);
4725 /* Return a face for charset ASCII that is like the face with id
4726 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4727 STEPS < 0 means larger. Value is the id of the face. */
4730 smaller_face (f
, face_id
, steps
)
4734 #ifdef HAVE_X_WINDOWS
4736 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4737 int pt
, last_pt
, last_height
;
4740 struct face
*new_face
;
4742 /* If not called for an X frame, just return the original face. */
4743 if (FRAME_TERMCAP_P (f
))
4746 /* Try in increments of 1/2 pt. */
4747 delta
= steps
< 0 ? 5 : -5;
4748 steps
= abs (steps
);
4750 face
= FACE_FROM_ID (f
, face_id
);
4751 bcopy (face
->lface
, attrs
, sizeof attrs
);
4752 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4753 new_face_id
= face_id
;
4754 last_height
= FONT_HEIGHT (face
->font
);
4758 /* Give up if we cannot find a font within 10pt. */
4759 && abs (last_pt
- pt
) < 100)
4761 /* Look up a face for a slightly smaller/larger font. */
4763 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4764 new_face_id
= lookup_face (f
, attrs
, CHARSET_ASCII
);
4765 new_face
= FACE_FROM_ID (f
, new_face_id
);
4767 /* If height changes, count that as one step. */
4768 if (FONT_HEIGHT (new_face
->font
) != last_height
)
4771 last_height
= FONT_HEIGHT (new_face
->font
);
4778 #else /* not HAVE_X_WINDOWS */
4782 #endif /* not HAVE_X_WINDOWS */
4786 /* Return a face for charset ASCII that is like the face with id
4787 FACE_ID on frame F, but has height HEIGHT. */
4790 face_with_height (f
, face_id
, height
)
4795 #ifdef HAVE_X_WINDOWS
4797 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4799 if (FRAME_TERMCAP_P (f
)
4803 face
= FACE_FROM_ID (f
, face_id
);
4804 bcopy (face
->lface
, attrs
, sizeof attrs
);
4805 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4806 face_id
= lookup_face (f
, attrs
, CHARSET_ASCII
);
4807 #endif /* HAVE_X_WINDOWS */
4812 /* Return the face id of the realized face for named face SYMBOL on
4813 frame F suitable for displaying characters from CHARSET (CHARSET <
4814 0 means unibyte text), and use attributes of the face FACE_ID for
4815 attributes that aren't completely specified by SYMBOL. This is
4816 like lookup_named_face, except that the default attributes come
4817 from FACE_ID, not from the default face. FACE_ID is assumed to
4818 be already realized. */
4821 lookup_derived_face (f
, symbol
, charset
, face_id
)
4827 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4828 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4829 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4834 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
4835 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4836 merge_face_vectors (symbol_attrs
, attrs
);
4837 return lookup_face (f
, attrs
, charset
);
4842 /***********************************************************************
4844 ***********************************************************************/
4846 DEFUN ("internal-set-font-selection-order",
4847 Finternal_set_font_selection_order
,
4848 Sinternal_set_font_selection_order
, 1, 1, 0,
4849 "Set font selection order for face font selection to ORDER.\n\
4850 ORDER must be a list of length 4 containing the symbols `:width',\n\
4851 `:height', `:weight', and `:slant'. Face attributes appearing\n\
4852 first in ORDER are matched first, e.g. if `:height' appears before\n\
4853 `:weight' in ORDER, font selection first tries to find a font with\n\
4854 a suitable height, and then tries to match the font weight.\n\
4863 CHECK_LIST (order
, 0);
4864 bzero (indices
, sizeof indices
);
4868 CONSP (list
) && i
< DIM (indices
);
4869 list
= XCDR (list
), ++i
)
4871 Lisp_Object attr
= XCAR (list
);
4874 if (EQ (attr
, QCwidth
))
4876 else if (EQ (attr
, QCheight
))
4877 xlfd
= XLFD_POINT_SIZE
;
4878 else if (EQ (attr
, QCweight
))
4880 else if (EQ (attr
, QCslant
))
4885 if (indices
[i
] != 0)
4891 || i
!= DIM (indices
)
4896 signal_error ("Invalid font sort order", order
);
4898 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
4900 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
4901 free_all_realized_faces (Qnil
);
4908 DEFUN ("internal-set-alternative-font-family-alist",
4909 Finternal_set_alternative_font_family_alist
,
4910 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
4911 "Define alternative font families to try in face font selection.\n\
4912 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
4913 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
4914 be found. Value is ALIST.")
4918 CHECK_LIST (alist
, 0);
4919 Vface_alternative_font_family_alist
= alist
;
4920 free_all_realized_faces (Qnil
);
4925 #ifdef HAVE_X_WINDOWS
4927 /* Return the X registry and encoding of font name FONT_NAME on frame F.
4928 Value is nil if not successful. */
4931 deduce_unibyte_registry (f
, font_name
)
4935 struct font_name font
;
4936 Lisp_Object registry
= Qnil
;
4938 font
.name
= STRDUPA (font_name
);
4939 if (split_font_name (f
, &font
, 0))
4943 /* Extract registry and encoding. */
4944 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_REGISTRY
])
4945 + strlen (font
.fields
[XLFD_ENCODING
])
4947 strcpy (buffer
, font
.fields
[XLFD_REGISTRY
]);
4948 strcat (buffer
, "-");
4949 strcat (buffer
, font
.fields
[XLFD_ENCODING
]);
4950 registry
= build_string (buffer
);
4957 /* Value is non-zero if FONT is the name of a scalable font. The
4958 X11R6 XLFD spec says that point size, pixel size, and average width
4959 are zero for scalable fonts. Intlfonts contain at least one
4960 scalable font ("*-muleindian-1") for which this isn't true, so we
4961 just test average width. */
4964 font_scalable_p (font
)
4965 struct font_name
*font
;
4967 char *s
= font
->fields
[XLFD_AVGWIDTH
];
4968 return *s
== '0' && *(s
+ 1) == '\0';
4972 /* Value is non-zero if FONT1 is a better match for font attributes
4973 VALUES than FONT2. VALUES is an array of face attribute values in
4974 font sort order. COMPARE_PT_P zero means don't compare point
4978 better_font_p (values
, font1
, font2
, compare_pt_p
)
4980 struct font_name
*font1
, *font2
;
4985 for (i
= 0; i
< 4; ++i
)
4987 int xlfd_idx
= font_sort_order
[i
];
4989 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
4991 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
4992 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
4994 if (delta1
> delta2
)
4996 else if (delta1
< delta2
)
5000 /* The difference may be equal because, e.g., the face
5001 specifies `italic' but we have only `regular' and
5002 `oblique'. Prefer `oblique' in this case. */
5003 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5004 && font1
->numeric
[xlfd_idx
] > values
[i
]
5005 && font2
->numeric
[xlfd_idx
] < values
[i
])
5017 /* Value is non-zero if FONT is an exact match for face attributes in
5018 SPECIFIED. SPECIFIED is an array of face attribute values in font
5022 exact_face_match_p (specified
, font
)
5024 struct font_name
*font
;
5028 for (i
= 0; i
< 4; ++i
)
5029 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5036 /* Value is the name of a scaled font, generated from scalable font
5037 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5038 Value is allocated from heap. */
5041 build_scalable_font_name (f
, font
, specified_pt
)
5043 struct font_name
*font
;
5046 char point_size
[20], pixel_size
[20];
5048 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5051 /* If scalable font is for a specific resolution, compute
5052 the point size we must specify from the resolution of
5053 the display and the specified resolution of the font. */
5054 if (font
->numeric
[XLFD_RESY
] != 0)
5056 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5057 pixel_value
= font
->numeric
[XLFD_RESY
] / 720.0 * pt
;
5062 pixel_value
= resy
/ 720.0 * pt
;
5065 /* Set point size of the font. */
5066 sprintf (point_size
, "%d", (int) pt
);
5067 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5068 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5070 /* Set pixel size. */
5071 sprintf (pixel_size
, "%d", pixel_value
);
5072 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5073 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5075 /* If font doesn't specify its resolution, use the
5076 resolution of the display. */
5077 if (font
->numeric
[XLFD_RESY
] == 0)
5080 sprintf (buffer
, "%d", (int) resy
);
5081 font
->fields
[XLFD_RESY
] = buffer
;
5082 font
->numeric
[XLFD_RESY
] = resy
;
5085 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5088 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5089 sprintf (buffer
, "%d", resx
);
5090 font
->fields
[XLFD_RESX
] = buffer
;
5091 font
->numeric
[XLFD_RESX
] = resx
;
5094 return build_font_name (font
);
5098 /* Value is non-zero if we are allowed to use scalable font FONT. We
5099 can't run a Lisp function here since this function may be called
5100 with input blocked. */
5103 may_use_scalable_font_p (font
, name
)
5104 struct font_name
*font
;
5107 if (EQ (Vscalable_fonts_allowed
, Qt
))
5109 else if (CONSP (Vscalable_fonts_allowed
))
5111 Lisp_Object tail
, regexp
;
5113 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5115 regexp
= XCAR (tail
);
5116 if (STRINGP (regexp
)
5117 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5125 #endif /* SCALABLE_FONTS != 0 */
5128 /* Return the name of the best matching font for face attributes
5129 ATTRS in the array of font_name structures FONTS which contains
5130 NFONTS elements. Value is a font name which is allocated from
5131 the heap. FONTS is freed by this function. */
5134 best_matching_font (f
, attrs
, fonts
, nfonts
)
5137 struct font_name
*fonts
;
5141 struct font_name
*best
;
5149 /* Make specified font attributes available in `specified',
5150 indexed by sort order. */
5151 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5153 int xlfd_idx
= font_sort_order
[i
];
5155 if (xlfd_idx
== XLFD_SWIDTH
)
5156 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5157 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5158 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5159 else if (xlfd_idx
== XLFD_WEIGHT
)
5160 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5161 else if (xlfd_idx
== XLFD_SLANT
)
5162 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5172 /* Start with the first non-scalable font in the list. */
5173 for (i
= 0; i
< nfonts
; ++i
)
5174 if (!font_scalable_p (fonts
+ i
))
5177 /* Find the best match among the non-scalable fonts. */
5182 for (i
= 1; i
< nfonts
; ++i
)
5183 if (!font_scalable_p (fonts
+ i
)
5184 && better_font_p (specified
, fonts
+ i
, best
, 1))
5188 exact_p
= exact_face_match_p (specified
, best
);
5197 /* Unless we found an exact match among non-scalable fonts, see if
5198 we can find a better match among scalable fonts. */
5201 /* A scalable font is better if
5203 1. its weight, slant, swidth attributes are better, or.
5205 2. the best non-scalable font doesn't have the required
5206 point size, and the scalable fonts weight, slant, swidth
5209 int non_scalable_has_exact_height_p
;
5211 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5212 non_scalable_has_exact_height_p
= 1;
5214 non_scalable_has_exact_height_p
= 0;
5216 for (i
= 0; i
< nfonts
; ++i
)
5217 if (font_scalable_p (fonts
+ i
))
5220 || better_font_p (specified
, fonts
+ i
, best
, 0)
5221 || (!non_scalable_has_exact_height_p
5222 && !better_font_p (specified
, best
, fonts
+ i
, 0)))
5227 if (font_scalable_p (best
))
5228 font_name
= build_scalable_font_name (f
, best
, pt
);
5230 font_name
= build_font_name (best
);
5232 #else /* !SCALABLE_FONTS */
5234 /* Find the best non-scalable font. */
5237 for (i
= 1; i
< nfonts
; ++i
)
5239 xassert (!font_scalable_p (fonts
+ i
));
5240 if (better_font_p (specified
, fonts
+ i
, best
, 1))
5244 font_name
= build_font_name (best
);
5246 #endif /* !SCALABLE_FONTS */
5248 /* Free font_name structures. */
5249 free_font_names (fonts
, nfonts
);
5255 /* Try to get a list of fonts on frame F with font family FAMILY and
5256 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5257 of font_name structures for the fonts matched. Value is the number
5261 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5264 char *pattern
, *family
, *registry
;
5265 struct font_name
**fonts
;
5270 family
= LSTRDUPA (attrs
[LFACE_FAMILY_INDEX
]);
5272 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5278 /* Try alternative font families from
5279 Vface_alternative_font_family_alist. */
5280 alter
= Fassoc (build_string (family
),
5281 Vface_alternative_font_family_alist
);
5283 for (alter
= XCDR (alter
);
5284 CONSP (alter
) && nfonts
== 0;
5285 alter
= XCDR (alter
))
5287 if (STRINGP (XCAR (alter
)))
5289 family
= LSTRDUPA (XCAR (alter
));
5290 nfonts
= font_list (f
, NULL
, family
, registry
, fonts
);
5294 /* Try font family of the default face or "fixed". */
5297 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5299 family
= LSTRDUPA (dflt
->lface
[LFACE_FAMILY_INDEX
]);
5302 nfonts
= font_list (f
, NULL
, family
, registry
, fonts
);
5305 /* Try any family with the given registry. */
5307 nfonts
= font_list (f
, NULL
, "*", registry
, fonts
);
5314 /* Return the registry and encoding pattern that fonts for CHARSET
5315 should match. Value is allocated from the heap. */
5318 x_charset_registry (charset
)
5321 Lisp_Object prop
, charset_plist
;
5324 /* Get registry and encoding from the charset's plist. */
5325 charset_plist
= CHARSET_TABLE_INFO (charset
, CHARSET_PLIST_IDX
);
5326 prop
= Fplist_get (charset_plist
, Qx_charset_registry
);
5330 if (index (XSTRING (prop
)->data
, '-'))
5331 registry
= xstrdup (XSTRING (prop
)->data
);
5334 /* If registry doesn't contain a `-', make it a pattern. */
5335 registry
= (char *) xmalloc (STRING_BYTES (XSTRING (prop
)) + 5);
5336 strcpy (registry
, XSTRING (prop
)->data
);
5337 strcat (registry
, "*-*");
5340 else if (STRINGP (Vface_default_registry
))
5341 registry
= xstrdup (XSTRING (Vface_default_registry
)->data
);
5343 registry
= xstrdup ("iso8859-1");
5349 /* Return the fontset id of the fontset name or alias name given by
5350 the family attribute of ATTRS on frame F. Value is -1 if the
5351 family attribute of ATTRS doesn't name a fontset. */
5354 face_fontset (f
, attrs
)
5358 Lisp_Object name
= attrs
[LFACE_FAMILY_INDEX
];
5361 name
= Fquery_fontset (name
, Qnil
);
5365 fontset
= fs_query_fontset (f
, XSTRING (name
)->data
);
5371 /* Get the font to use for the face realizing the fully-specified Lisp
5372 face ATTRS for charset CHARSET on frame F. CHARSET < 0 means
5373 unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use
5374 in this case. Value is the font name which is allocated from the
5375 heap (which means that it must be freed eventually). */
5378 choose_face_font (f
, attrs
, charset
, unibyte_registry
)
5382 Lisp_Object unibyte_registry
;
5384 struct font_name
*fonts
;
5388 /* ATTRS must be fully-specified. */
5389 xassert (lface_fully_specified_p (attrs
));
5391 if (STRINGP (unibyte_registry
))
5392 registry
= xstrdup (XSTRING (unibyte_registry
)->data
);
5394 registry
= x_charset_registry (charset
);
5396 nfonts
= try_font_list (f
, attrs
, NULL
, NULL
, registry
, &fonts
);
5398 return best_matching_font (f
, attrs
, fonts
, nfonts
);
5402 /* Choose a font to use on frame F to display CHARSET using FONTSET
5403 with Lisp face attributes specified by ATTRS. CHARSET may be any
5404 valid charset except CHARSET_COMPOSITION. CHARSET < 0 means
5405 unibyte text. If the fontset doesn't contain a font pattern for
5406 charset, use the pattern for CHARSET_ASCII. Value is the font name
5407 which is allocated from the heap and must be freed by the caller. */
5410 choose_face_fontset_font (f
, attrs
, fontset
, charset
)
5413 int fontset
, charset
;
5416 char *font_name
= NULL
;
5417 struct fontset_info
*fontset_info
;
5418 struct font_name
*fonts
;
5421 xassert (charset
!= CHARSET_COMPOSITION
);
5422 xassert (fontset
>= 0 && fontset
< FRAME_FONTSET_DATA (f
)->n_fontsets
);
5424 /* For unibyte text, use the ASCII font of the fontset. Using the
5425 ASCII font seems to be the most reasonable thing we can do in
5428 charset
= CHARSET_ASCII
;
5430 /* Get the font name pattern to use for CHARSET from the fontset. */
5431 fontset_info
= FRAME_FONTSET_DATA (f
)->fontset_table
[fontset
];
5432 pattern
= fontset_info
->fontname
[charset
];
5434 pattern
= fontset_info
->fontname
[CHARSET_ASCII
];
5437 /* Get a list of fonts matching that pattern and choose the
5438 best match for the specified face attributes from it. */
5439 nfonts
= try_font_list (f
, attrs
, pattern
, NULL
, NULL
, &fonts
);
5440 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
);
5444 #endif /* HAVE_X_WINDOWS */
5448 /***********************************************************************
5450 ***********************************************************************/
5452 /* Realize basic faces on frame F. Value is zero if frame parameters
5453 of F don't contain enough information needed to realize the default
5457 realize_basic_faces (f
)
5462 if (realize_default_face (f
))
5464 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5465 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5466 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
5467 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5468 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5469 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5470 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5471 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5472 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5480 /* Realize the default face on frame F. If the face is not fully
5481 specified, make it fully-specified. Attributes of the default face
5482 that are not explicitly specified are taken from frame parameters. */
5485 realize_default_face (f
)
5488 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5490 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5491 Lisp_Object unibyte_registry
;
5492 Lisp_Object frame_font
;
5496 /* If the `default' face is not yet known, create it. */
5497 lface
= lface_from_face_name (f
, Qdefault
, 0);
5501 XSETFRAME (frame
, f
);
5502 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5505 #ifdef HAVE_X_WINDOWS
5508 /* Set frame_font to the value of the `font' frame parameter. */
5509 frame_font
= Fassq (Qfont
, f
->param_alist
);
5510 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
5511 frame_font
= XCDR (frame_font
);
5513 fontset
= fs_query_fontset (f
, XSTRING (frame_font
)->data
);
5516 /* If frame_font is a fontset name, don't use that for
5517 determining font-related attributes of the default face
5518 because it is just an artificial name. Use the ASCII font of
5519 the fontset, instead. */
5520 struct font_info
*font_info
;
5521 struct font_name font
;
5524 font_info
= FS_LOAD_FONT (f
, FRAME_X_FONT_TABLE (f
), CHARSET_ASCII
,
5528 /* Set weight etc. from the ASCII font. */
5529 if (!set_lface_from_font_name (f
, lface
, font_info
->full_name
, 0))
5532 /* Remember registry and encoding of the frame font. */
5533 unibyte_registry
= deduce_unibyte_registry (f
, font_info
->full_name
);
5534 if (STRINGP (unibyte_registry
))
5535 Vface_default_registry
= unibyte_registry
;
5537 Vface_default_registry
= build_string ("iso8859-1");
5539 /* But set the family to the fontset alias name. Implementation
5540 note: When a font is passed to Emacs via `-fn FONT', a
5541 fontset is created in `x-win.el' whose name ends in
5542 `fontset-startup'. This fontset has an alias name that is
5543 equal to frame_font. */
5544 xassert (STRINGP (frame_font
));
5545 font
.name
= LSTRDUPA (frame_font
);
5547 if (!split_font_name (f
, &font
, 1)
5548 || xstricmp (font
.fields
[XLFD_REGISTRY
], "fontset") != 0
5549 || xstricmp (font
.fields
[XLFD_ENCODING
], "startup") != 0)
5550 LFACE_FAMILY (lface
) = frame_font
;
5554 /* Frame parameters contain a real font. Fill default face
5555 attributes from that font. */
5556 if (!set_lface_from_font_name (f
, lface
,
5557 XSTRING (frame_font
)->data
, 0))
5560 /* Remember registry and encoding of the frame font. */
5562 = deduce_unibyte_registry (f
, XSTRING (frame_font
)->data
);
5563 if (STRINGP (unibyte_registry
))
5564 Vface_default_registry
= unibyte_registry
;
5566 Vface_default_registry
= build_string ("iso8859-1");
5569 #endif /* HAVE_X_WINDOWS */
5571 if (!FRAME_WINDOW_P (f
))
5573 LFACE_FAMILY (lface
) = build_string ("default");
5574 LFACE_SWIDTH (lface
) = Qnormal
;
5575 LFACE_HEIGHT (lface
) = make_number (1);
5576 LFACE_WEIGHT (lface
) = Qnormal
;
5577 LFACE_SLANT (lface
) = Qnormal
;
5580 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5581 LFACE_UNDERLINE (lface
) = Qnil
;
5583 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5584 LFACE_OVERLINE (lface
) = Qnil
;
5586 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5587 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5589 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5590 LFACE_BOX (lface
) = Qnil
;
5592 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5593 LFACE_INVERSE (lface
) = Qnil
;
5595 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5597 /* This function is called so early that colors are not yet
5598 set in the frame parameter list. */
5599 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5601 if (CONSP (color
) && STRINGP (XCDR (color
)))
5602 LFACE_FOREGROUND (lface
) = XCDR (color
);
5603 else if (FRAME_X_P (f
))
5605 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5606 /* Frame parameters for terminal frames usually don't contain
5607 a color. Use an empty string to indicate that the face
5608 should use the (unknown) default color of the terminal. */
5609 LFACE_FOREGROUND (lface
) = build_string ("");
5614 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5616 /* This function is called so early that colors are not yet
5617 set in the frame parameter list. */
5618 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5619 if (CONSP (color
) && STRINGP (XCDR (color
)))
5620 LFACE_BACKGROUND (lface
) = XCDR (color
);
5621 else if (FRAME_X_P (f
))
5623 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5624 /* Frame parameters for terminal frames usually don't contain
5625 a color. Use an empty string to indicate that the face
5626 should use the (unknown) default color of the terminal. */
5627 LFACE_BACKGROUND (lface
) = build_string ("");
5632 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5633 LFACE_STIPPLE (lface
) = Qnil
;
5635 /* Realize the face; it must be fully-specified now. */
5636 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5637 check_lface (lface
);
5638 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5639 face
= realize_face (c
, attrs
, CHARSET_ASCII
);
5641 /* Remove the former default face. */
5642 if (c
->used
> DEFAULT_FACE_ID
)
5644 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5645 uncache_face (c
, default_face
);
5646 free_realized_face (f
, default_face
);
5649 /* Insert the new default face. */
5650 cache_face (c
, face
, lface_hash (attrs
));
5651 xassert (face
->id
== DEFAULT_FACE_ID
);
5656 /* Realize basic faces other than the default face in face cache C.
5657 SYMBOL is the face name, ID is the face id the realized face must
5658 have. The default face must have been realized already. */
5661 realize_named_face (f
, symbol
, id
)
5666 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5667 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5668 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5669 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5670 struct face
*new_face
;
5672 /* The default face must exist and be fully specified. */
5673 get_lface_attributes (f
, Qdefault
, attrs
, 1);
5674 check_lface_attrs (attrs
);
5675 xassert (lface_fully_specified_p (attrs
));
5677 /* If SYMBOL isn't know as a face, create it. */
5681 XSETFRAME (frame
, f
);
5682 lface
= Finternal_make_lisp_face (symbol
, frame
);
5685 /* Merge SYMBOL's face with the default face. */
5686 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5687 merge_face_vectors (symbol_attrs
, attrs
);
5689 /* Realize the face. */
5690 new_face
= realize_face (c
, attrs
, CHARSET_ASCII
);
5692 /* Remove the former face. */
5695 struct face
*old_face
= c
->faces_by_id
[id
];
5696 uncache_face (c
, old_face
);
5697 free_realized_face (f
, old_face
);
5700 /* Insert the new face. */
5701 cache_face (c
, new_face
, lface_hash (attrs
));
5702 xassert (new_face
->id
== id
);
5706 /* Realize the fully-specified face with attributes ATTRS in face
5707 cache C for character set CHARSET or for unibyte text if CHARSET <
5708 0. Value is a pointer to the newly created realized face. */
5710 static struct face
*
5711 realize_face (c
, attrs
, charset
)
5712 struct face_cache
*c
;
5718 /* LFACE must be fully specified. */
5719 xassert (c
!= NULL
);
5720 check_lface_attrs (attrs
);
5722 if (FRAME_X_P (c
->f
))
5723 face
= realize_x_face (c
, attrs
, charset
);
5724 else if (FRAME_TERMCAP_P (c
->f
) || FRAME_MSDOS_P (c
->f
))
5725 face
= realize_tty_face (c
, attrs
, charset
);
5733 /* Realize the fully-specified face with attributes ATTRS in face
5734 cache C for character set CHARSET or for unibyte text if CHARSET <
5735 0. Do it for X frame C->f. Value is a pointer to the newly
5736 created realized face. */
5738 static struct face
*
5739 realize_x_face (c
, attrs
, charset
)
5740 struct face_cache
*c
;
5744 #ifdef HAVE_X_WINDOWS
5745 struct face
*face
, *default_face
;
5746 struct frame
*f
= c
->f
;
5747 Lisp_Object stipple
, overline
, strike_through
, box
;
5748 Lisp_Object unibyte_registry
;
5749 struct gcpro gcpro1
;
5751 xassert (FRAME_X_P (f
));
5753 /* If realizing a face for use in unibyte text, get the X registry
5754 and encoding to use from Vface_default_registry. */
5756 unibyte_registry
= (STRINGP (Vface_default_registry
)
5757 ? Vface_default_registry
5758 : build_string ("iso8859-1"));
5760 unibyte_registry
= Qnil
;
5761 GCPRO1 (unibyte_registry
);
5763 /* Allocate a new realized face. */
5764 face
= make_realized_face (attrs
, charset
, unibyte_registry
);
5766 /* Determine the font to use. Most of the time, the font will be
5767 the same as the font of the default face, so try that first. */
5768 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5770 && FACE_SUITABLE_FOR_CHARSET_P (default_face
, charset
)
5771 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5773 face
->font
= default_face
->font
;
5774 face
->fontset
= default_face
->fontset
;
5775 face
->font_info_id
= default_face
->font_info_id
;
5776 face
->font_name
= default_face
->font_name
;
5777 face
->registry
= default_face
->registry
;
5779 else if (charset
>= 0)
5781 /* For all charsets except CHARSET_COMPOSITION, we use our own
5782 font selection functions to choose a best matching font for
5783 the specified face attributes. If the face specifies a
5784 fontset alias name, the fontset determines the font name
5785 pattern, otherwise we construct a font pattern from face
5786 attributes and charset.
5788 If charset is CHARSET_COMPOSITION, we always construct a face
5789 with a fontset, even if the face doesn't specify a fontset alias
5790 (we use fontset-standard in that case). When the composite
5791 character is displayed in xterm.c, a suitable concrete font is
5792 loaded in x_get_char_font_and_encoding. */
5794 char *font_name
= NULL
;
5795 int fontset
= face_fontset (f
, attrs
);
5797 if (charset
== CHARSET_COMPOSITION
)
5798 fontset
= max (0, fontset
);
5799 else if (fontset
< 0)
5800 font_name
= choose_face_font (f
, attrs
, charset
, Qnil
);
5803 font_name
= choose_face_fontset_font (f
, attrs
, fontset
, charset
);
5807 load_face_font_or_fontset (f
, face
, font_name
, fontset
);
5812 /* Unibyte case, and font is not equal to that of the default
5813 face. UNIBYTE_REGISTRY is the X registry and encoding the
5814 font should have. What is a reasonable thing to do if the
5815 user specified a fontset alias name for the face in this
5816 case? We choose a font by taking the ASCII font of the
5817 fontset, but using UNIBYTE_REGISTRY for its registry and
5820 char *font_name
= NULL
;
5821 int fontset
= face_fontset (f
, attrs
);
5824 font_name
= choose_face_font (f
, attrs
, charset
, unibyte_registry
);
5826 font_name
= choose_face_fontset_font (f
, attrs
, fontset
, charset
);
5828 load_face_font_or_fontset (f
, face
, font_name
, -1);
5832 /* Load colors, and set remaining attributes. */
5834 load_face_colors (f
, face
, attrs
);
5837 box
= attrs
[LFACE_BOX_INDEX
];
5840 /* A simple box of line width 1 drawn in color given by
5842 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5844 face
->box
= FACE_SIMPLE_BOX
;
5845 face
->box_line_width
= 1;
5847 else if (INTEGERP (box
))
5849 /* Simple box of specified line width in foreground color of the
5851 xassert (XINT (box
) > 0);
5852 face
->box
= FACE_SIMPLE_BOX
;
5853 face
->box_line_width
= XFASTINT (box
);
5854 face
->box_color
= face
->foreground
;
5855 face
->box_color_defaulted_p
= 1;
5857 else if (CONSP (box
))
5859 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5860 being one of `raised' or `sunken'. */
5861 face
->box
= FACE_SIMPLE_BOX
;
5862 face
->box_color
= face
->foreground
;
5863 face
->box_color_defaulted_p
= 1;
5864 face
->box_line_width
= 1;
5868 Lisp_Object keyword
, value
;
5870 keyword
= XCAR (box
);
5878 if (EQ (keyword
, QCline_width
))
5880 if (INTEGERP (value
) && XINT (value
) > 0)
5881 face
->box_line_width
= XFASTINT (value
);
5883 else if (EQ (keyword
, QCcolor
))
5885 if (STRINGP (value
))
5887 face
->box_color
= load_color (f
, face
, value
,
5889 face
->use_box_color_for_shadows_p
= 1;
5892 else if (EQ (keyword
, QCstyle
))
5894 if (EQ (value
, Qreleased_button
))
5895 face
->box
= FACE_RAISED_BOX
;
5896 else if (EQ (value
, Qpressed_button
))
5897 face
->box
= FACE_SUNKEN_BOX
;
5902 /* Text underline, overline, strike-through. */
5904 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5906 /* Use default color (same as foreground color). */
5907 face
->underline_p
= 1;
5908 face
->underline_defaulted_p
= 1;
5909 face
->underline_color
= 0;
5911 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5913 /* Use specified color. */
5914 face
->underline_p
= 1;
5915 face
->underline_defaulted_p
= 0;
5916 face
->underline_color
5917 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5918 LFACE_UNDERLINE_INDEX
);
5920 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5922 face
->underline_p
= 0;
5923 face
->underline_defaulted_p
= 0;
5924 face
->underline_color
= 0;
5927 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5928 if (STRINGP (overline
))
5930 face
->overline_color
5931 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5932 LFACE_OVERLINE_INDEX
);
5933 face
->overline_p
= 1;
5935 else if (EQ (overline
, Qt
))
5937 face
->overline_color
= face
->foreground
;
5938 face
->overline_color_defaulted_p
= 1;
5939 face
->overline_p
= 1;
5942 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5943 if (STRINGP (strike_through
))
5945 face
->strike_through_color
5946 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5947 LFACE_STRIKE_THROUGH_INDEX
);
5948 face
->strike_through_p
= 1;
5950 else if (EQ (strike_through
, Qt
))
5952 face
->strike_through_color
= face
->foreground
;
5953 face
->strike_through_color_defaulted_p
= 1;
5954 face
->strike_through_p
= 1;
5957 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5958 if (!NILP (stipple
))
5959 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5962 xassert (face
->fontset
< 0 || face
->charset
== CHARSET_COMPOSITION
);
5963 xassert (FACE_SUITABLE_FOR_CHARSET_P (face
, charset
));
5965 #endif /* HAVE_X_WINDOWS */
5969 /* Realize the fully-specified face with attributes ATTRS in face
5970 cache C for character set CHARSET or for unibyte text if CHARSET <
5971 0. Do it for TTY frame C->f. Value is a pointer to the newly
5972 created realized face. */
5974 static struct face
*
5975 realize_tty_face (c
, attrs
, charset
)
5976 struct face_cache
*c
;
5984 /* Frame must be a termcap frame. */
5985 xassert (FRAME_TERMCAP_P (c
->f
) || FRAME_MSDOS_P (c
->f
));
5987 /* Allocate a new realized face. */
5988 face
= make_realized_face (attrs
, charset
, Qnil
);
5989 face
->font_name
= FRAME_MSDOS_P (c
->f
) ? "ms-dos" : "tty";
5991 /* Map face attributes to TTY appearances. We map slant to
5992 dimmed text because we want italic text to appear differently
5993 and because dimmed text is probably used infrequently. */
5994 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5995 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5997 if (weight
> XLFD_WEIGHT_MEDIUM
)
5998 face
->tty_bold_p
= 1;
5999 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6000 face
->tty_dim_p
= 1;
6001 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6002 face
->tty_underline_p
= 1;
6003 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6004 face
->tty_reverse_p
= 1;
6006 /* Map color names to color indices. */
6007 face
->foreground
= face
->background
= FACE_TTY_DEFAULT_COLOR
;
6009 color
= attrs
[LFACE_FOREGROUND_INDEX
];
6010 if (XSTRING (color
)->size
6011 && (color
= Fassoc (color
, Vface_tty_color_alist
),
6013 face
->foreground
= XINT (XCDR (color
));
6016 if (FRAME_MSDOS_P (c
->f
) && face
->foreground
== FACE_TTY_DEFAULT_COLOR
)
6018 face
->foreground
= load_color (c
->f
, face
,
6019 attrs
[LFACE_FOREGROUND_INDEX
],
6020 LFACE_FOREGROUND_INDEX
);
6021 /* If the foreground of the default face is the default color,
6022 use the foreground color defined by the frame. */
6023 if (face
->foreground
== FACE_TTY_DEFAULT_COLOR
)
6025 face
->foreground
= FRAME_FOREGROUND_PIXEL (f
);
6026 attrs
[LFACE_FOREGROUND_INDEX
] =
6027 build_string (msdos_stdcolor_name (face
->foreground
));
6032 color
= attrs
[LFACE_BACKGROUND_INDEX
];
6033 if (XSTRING (color
)->size
6034 && (color
= Fassoc (color
, Vface_tty_color_alist
),
6036 face
->background
= XINT (XCDR (color
));
6039 if (FRAME_MSDOS_P (c
->f
) && face
->background
== FACE_TTY_DEFAULT_COLOR
)
6041 face
->background
= load_color (c
->f
, face
,
6042 attrs
[LFACE_BACKGROUND_INDEX
],
6043 LFACE_BACKGROUND_INDEX
);
6044 /* If the background of the default face is the default color,
6045 use the background color defined by the frame. */
6046 if (face
->background
== FACE_TTY_DEFAULT_COLOR
)
6048 face
->background
= FRAME_BACKGROUND_PIXEL (f
);
6049 attrs
[LFACE_BACKGROUND_INDEX
] =
6050 build_string (msdos_stdcolor_name (face
->background
));
6054 /* Swap colors if face is inverse-video. */
6055 if (face
->tty_reverse_p
)
6057 unsigned long tem
= face
->foreground
;
6059 face
->foreground
= face
->background
;
6060 face
->background
= tem
;
6068 DEFUN ("face-register-tty-color", Fface_register_tty_color
,
6069 Sface_register_tty_color
, 2, 2, 0,
6070 "Say that COLOR is color number NUMBER on the terminal.\n\
6071 COLOR is a string, the color name. Value is COLOR.")
6073 Lisp_Object color
, number
;
6077 CHECK_STRING (color
, 0);
6078 CHECK_NUMBER (number
, 1);
6079 entry
= Fassoc (color
, Vface_tty_color_alist
);
6081 Vface_tty_color_alist
= Fcons (Fcons (color
, number
),
6082 Vface_tty_color_alist
);
6084 Fsetcdr (entry
, number
);
6089 DEFUN ("face-clear-tty-colors", Fface_clear_tty_colors
,
6090 Sface_clear_tty_colors
, 0, 0, 0,
6091 "Unregister all registered tty colors.")
6094 return Vface_tty_color_alist
= Qnil
;
6098 DEFUN ("tty-defined-colors", Ftty_defined_colors
,
6099 Stty_defined_colors
, 0, 0, 0,
6100 "Return a list of registered tty colors.")
6103 Lisp_Object list
, colors
;
6106 for (list
= Vface_tty_color_alist
; CONSP (list
); list
= XCDR (list
))
6107 colors
= Fcons (XCAR (XCAR (list
)), colors
);
6114 /***********************************************************************
6116 ***********************************************************************/
6118 /* Return the ID of the face to use to display character CH with face
6119 property PROP on frame F in current_buffer. */
6122 compute_char_face (f
, ch
, prop
)
6128 int charset
= (NILP (current_buffer
->enable_multibyte_characters
)
6130 : CHAR_CHARSET (ch
));
6133 face_id
= FACE_FOR_CHARSET (f
, DEFAULT_FACE_ID
, charset
);
6136 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6137 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6138 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6139 merge_face_vector_with_property (f
, attrs
, prop
);
6140 face_id
= lookup_face (f
, attrs
, charset
);
6147 /* Return the face ID associated with buffer position POS for
6148 displaying ASCII characters. Return in *ENDPTR the position at
6149 which a different face is needed, as far as text properties and
6150 overlays are concerned. W is a window displaying current_buffer.
6152 REGION_BEG, REGION_END delimit the region, so it can be
6155 LIMIT is a position not to scan beyond. That is to limit the time
6156 this function can take.
6158 If MOUSE is non-zero, use the character's mouse-face, not its face.
6160 The face returned is suitable for displaying CHARSET_ASCII if
6161 current_buffer->enable_multibyte_characters is non-nil. Otherwise,
6162 the face is suitable for displaying unibyte text. */
6165 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6166 endptr
, limit
, mouse
)
6169 int region_beg
, region_end
;
6174 struct frame
*f
= XFRAME (w
->frame
);
6175 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6176 Lisp_Object prop
, position
;
6178 Lisp_Object
*overlay_vec
;
6181 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6182 Lisp_Object limit1
, end
;
6183 struct face
*default_face
;
6184 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
6186 /* W must display the current buffer. We could write this function
6187 to use the frame and buffer of W, but right now it doesn't. */
6188 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6190 XSETFRAME (frame
, f
);
6191 XSETFASTINT (position
, pos
);
6194 if (pos
< region_beg
&& region_beg
< endpos
)
6195 endpos
= region_beg
;
6197 /* Get the `face' or `mouse_face' text property at POS, and
6198 determine the next position at which the property changes. */
6199 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6200 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6201 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6203 endpos
= XINT (end
);
6205 /* Look at properties from overlays. */
6210 /* First try with room for 40 overlays. */
6212 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6213 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6214 &next_overlay
, NULL
);
6216 /* If there are more than 40, make enough space for all, and try
6218 if (noverlays
> len
)
6221 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6222 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6223 &next_overlay
, NULL
);
6226 if (next_overlay
< endpos
)
6227 endpos
= next_overlay
;
6232 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6234 /* Optimize common cases where we can use the default face. */
6237 && !(pos
>= region_beg
&& pos
< region_end
)
6239 || !FRAME_WINDOW_P (f
)
6240 || FACE_SUITABLE_FOR_CHARSET_P (default_face
, -1)))
6241 return DEFAULT_FACE_ID
;
6243 /* Begin with attributes from the default face. */
6244 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6246 /* Merge in attributes specified via text properties. */
6248 merge_face_vector_with_property (f
, attrs
, prop
);
6250 /* Now merge the overlay data. */
6251 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6252 for (i
= 0; i
< noverlays
; i
++)
6257 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6259 merge_face_vector_with_property (f
, attrs
, prop
);
6261 oend
= OVERLAY_END (overlay_vec
[i
]);
6262 oendpos
= OVERLAY_POSITION (oend
);
6263 if (oendpos
< endpos
)
6267 /* If in the region, merge in the region face. */
6268 if (pos
>= region_beg
&& pos
< region_end
)
6270 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6271 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6273 if (region_end
< endpos
)
6274 endpos
= region_end
;
6279 /* Look up a realized face with the given face attributes,
6280 or realize a new one. Charset is ignored for tty frames. */
6281 return lookup_face (f
, attrs
, multibyte_p
? CHARSET_ASCII
: -1);
6285 /* Compute the face at character position POS in Lisp string STRING on
6286 window W, for charset CHARSET_ASCII.
6288 If STRING is an overlay string, it comes from position BUFPOS in
6289 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6290 not an overlay string. W must display the current buffer.
6291 REGION_BEG and REGION_END give the start and end positions of the
6292 region; both are -1 if no region is visible. BASE_FACE_ID is the
6293 id of the basic face to merge with. It is usually equal to
6294 DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID
6295 for strings displayed in the mode or top line.
6297 Set *ENDPTR to the next position where to check for faces in
6298 STRING; -1 if the face is constant from POS to the end of the
6301 Value is the id of the face to use. The face returned is suitable
6302 for displaying CHARSET_ASCII if STRING is multibyte. Otherwise,
6303 the face is suitable for displaying unibyte text. */
6306 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6307 region_end
, endptr
, base_face_id
)
6311 int region_beg
, region_end
;
6313 enum face_id base_face_id
;
6315 Lisp_Object prop
, position
, end
, limit
;
6316 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6317 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6318 struct face
*base_face
;
6319 int multibyte_p
= STRING_MULTIBYTE (string
);
6321 /* Get the value of the face property at the current position within
6322 STRING. Value is nil if there is no face property. */
6323 XSETFASTINT (position
, pos
);
6324 prop
= Fget_text_property (position
, Qface
, string
);
6326 /* Get the next position at which to check for faces. Value of end
6327 is nil if face is constant all the way to the end of the string.
6328 Otherwise it is a string position where to check faces next.
6329 Limit is the maximum position up to which to check for property
6330 changes in Fnext_single_property_change. Strings are usually
6331 short, so set the limit to the end of the string. */
6332 XSETFASTINT (limit
, XSTRING (string
)->size
);
6333 end
= Fnext_single_property_change (position
, Qface
, string
, limit
);
6335 *endptr
= XFASTINT (end
);
6339 base_face
= FACE_FROM_ID (f
, base_face_id
);
6340 xassert (base_face
);
6342 /* Optimize the default case that there is no face property and we
6343 are not in the region. */
6345 && (base_face_id
!= DEFAULT_FACE_ID
6346 /* BUFPOS <= 0 means STRING is not an overlay string, so
6347 that the region doesn't have to be taken into account. */
6349 || bufpos
< region_beg
6350 || bufpos
>= region_end
)
6352 /* We can't realize faces for different charsets differently
6353 if we don't have fonts, so we can stop here if not working
6354 on a window-system frame. */
6355 || !FRAME_WINDOW_P (f
)
6356 || FACE_SUITABLE_FOR_CHARSET_P (base_face
, -1)))
6357 return base_face
->id
;
6359 /* Begin with attributes from the base face. */
6360 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6362 /* Merge in attributes specified via text properties. */
6364 merge_face_vector_with_property (f
, attrs
, prop
);
6366 /* If in the region, merge in the region face. */
6368 && bufpos
>= region_beg
6369 && bufpos
< region_end
)
6371 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6372 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6375 /* Look up a realized face with the given face attributes,
6376 or realize a new one. */
6377 return lookup_face (f
, attrs
, multibyte_p
? CHARSET_ASCII
: -1);
6382 /***********************************************************************
6384 ***********************************************************************/
6388 /* Print the contents of the realized face FACE to stderr. */
6391 dump_realized_face (face
)
6394 fprintf (stderr
, "ID: %d\n", face
->id
);
6395 #ifdef HAVE_X_WINDOWS
6396 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6398 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6400 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6401 fprintf (stderr
, "background: 0x%lx (%s)\n",
6403 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6404 fprintf (stderr
, "font_name: %s (%s)\n",
6406 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6407 #ifdef HAVE_X_WINDOWS
6408 fprintf (stderr
, "font = %p\n", face
->font
);
6410 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6411 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6412 fprintf (stderr
, "underline: %d (%s)\n",
6414 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6415 fprintf (stderr
, "hash: %d\n", face
->hash
);
6416 fprintf (stderr
, "charset: %d\n", face
->charset
);
6420 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6428 fprintf (stderr
, "font selection order: ");
6429 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6430 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6431 fprintf (stderr
, "\n");
6433 fprintf (stderr
, "alternative fonts: ");
6434 debug_print (Vface_alternative_font_family_alist
);
6435 fprintf (stderr
, "\n");
6437 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6438 Fdump_face (make_number (i
));
6443 CHECK_NUMBER (n
, 0);
6444 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6446 error ("Not a valid face");
6447 dump_realized_face (face
);
6454 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6458 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6459 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6460 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6464 #endif /* GLYPH_DEBUG != 0 */
6468 /***********************************************************************
6470 ***********************************************************************/
6475 Qface
= intern ("face");
6477 Qpixmap_spec_p
= intern ("pixmap-spec-p");
6478 staticpro (&Qpixmap_spec_p
);
6479 Qframe_update_face_colors
= intern ("frame-update-face-colors");
6480 staticpro (&Qframe_update_face_colors
);
6482 /* Lisp face attribute keywords. */
6483 QCfamily
= intern (":family");
6484 staticpro (&QCfamily
);
6485 QCheight
= intern (":height");
6486 staticpro (&QCheight
);
6487 QCweight
= intern (":weight");
6488 staticpro (&QCweight
);
6489 QCslant
= intern (":slant");
6490 staticpro (&QCslant
);
6491 QCunderline
= intern (":underline");
6492 staticpro (&QCunderline
);
6493 QCinverse_video
= intern (":inverse-video");
6494 staticpro (&QCinverse_video
);
6495 QCreverse_video
= intern (":reverse-video");
6496 staticpro (&QCreverse_video
);
6497 QCforeground
= intern (":foreground");
6498 staticpro (&QCforeground
);
6499 QCbackground
= intern (":background");
6500 staticpro (&QCbackground
);
6501 QCstipple
= intern (":stipple");;
6502 staticpro (&QCstipple
);
6503 QCwidth
= intern (":width");
6504 staticpro (&QCwidth
);
6505 QCfont
= intern (":font");
6506 staticpro (&QCfont
);
6507 QCbold
= intern (":bold");
6508 staticpro (&QCbold
);
6509 QCitalic
= intern (":italic");
6510 staticpro (&QCitalic
);
6511 QCoverline
= intern (":overline");
6512 staticpro (&QCoverline
);
6513 QCstrike_through
= intern (":strike-through");
6514 staticpro (&QCstrike_through
);
6515 QCbox
= intern (":box");
6518 /* Symbols used for Lisp face attribute values. */
6519 QCcolor
= intern (":color");
6520 staticpro (&QCcolor
);
6521 QCline_width
= intern (":line-width");
6522 staticpro (&QCline_width
);
6523 QCstyle
= intern (":style");
6524 staticpro (&QCstyle
);
6525 Qreleased_button
= intern ("released-button");
6526 staticpro (&Qreleased_button
);
6527 Qpressed_button
= intern ("pressed-button");
6528 staticpro (&Qpressed_button
);
6529 Qnormal
= intern ("normal");
6530 staticpro (&Qnormal
);
6531 Qultra_light
= intern ("ultra-light");
6532 staticpro (&Qultra_light
);
6533 Qextra_light
= intern ("extra-light");
6534 staticpro (&Qextra_light
);
6535 Qlight
= intern ("light");
6536 staticpro (&Qlight
);
6537 Qsemi_light
= intern ("semi-light");
6538 staticpro (&Qsemi_light
);
6539 Qsemi_bold
= intern ("semi-bold");
6540 staticpro (&Qsemi_bold
);
6541 Qbold
= intern ("bold");
6543 Qextra_bold
= intern ("extra-bold");
6544 staticpro (&Qextra_bold
);
6545 Qultra_bold
= intern ("ultra-bold");
6546 staticpro (&Qultra_bold
);
6547 Qoblique
= intern ("oblique");
6548 staticpro (&Qoblique
);
6549 Qitalic
= intern ("italic");
6550 staticpro (&Qitalic
);
6551 Qreverse_oblique
= intern ("reverse-oblique");
6552 staticpro (&Qreverse_oblique
);
6553 Qreverse_italic
= intern ("reverse-italic");
6554 staticpro (&Qreverse_italic
);
6555 Qultra_condensed
= intern ("ultra-condensed");
6556 staticpro (&Qultra_condensed
);
6557 Qextra_condensed
= intern ("extra-condensed");
6558 staticpro (&Qextra_condensed
);
6559 Qcondensed
= intern ("condensed");
6560 staticpro (&Qcondensed
);
6561 Qsemi_condensed
= intern ("semi-condensed");
6562 staticpro (&Qsemi_condensed
);
6563 Qsemi_expanded
= intern ("semi-expanded");
6564 staticpro (&Qsemi_expanded
);
6565 Qexpanded
= intern ("expanded");
6566 staticpro (&Qexpanded
);
6567 Qextra_expanded
= intern ("extra-expanded");
6568 staticpro (&Qextra_expanded
);
6569 Qultra_expanded
= intern ("ultra-expanded");
6570 staticpro (&Qultra_expanded
);
6571 Qbackground_color
= intern ("background-color");
6572 staticpro (&Qbackground_color
);
6573 Qforeground_color
= intern ("foreground-color");
6574 staticpro (&Qforeground_color
);
6575 Qunspecified
= intern ("unspecified");
6576 staticpro (&Qunspecified
);
6578 Qx_charset_registry
= intern ("x-charset-registry");
6579 staticpro (&Qx_charset_registry
);
6580 Qface_alias
= intern ("face-alias");
6581 staticpro (&Qface_alias
);
6582 Qdefault
= intern ("default");
6583 staticpro (&Qdefault
);
6584 Qmode_line
= intern ("mode-line");
6585 staticpro (&Qmode_line
);
6586 Qtool_bar
= intern ("tool-bar");
6587 staticpro (&Qtool_bar
);
6588 Qregion
= intern ("region");
6589 staticpro (&Qregion
);
6590 Qfringe
= intern ("fringe");
6591 staticpro (&Qfringe
);
6592 Qheader_line
= intern ("header-line");
6593 staticpro (&Qheader_line
);
6594 Qscroll_bar
= intern ("scroll-bar");
6595 staticpro (&Qscroll_bar
);
6596 Qmenu
= intern ("menu");
6598 Qcursor
= intern ("cursor");
6599 staticpro (&Qcursor
);
6600 Qborder
= intern ("border");
6601 staticpro (&Qborder
);
6602 Qmouse
= intern ("mouse");
6603 staticpro (&Qmouse
);
6605 defsubr (&Sinternal_make_lisp_face
);
6606 defsubr (&Sinternal_lisp_face_p
);
6607 defsubr (&Sinternal_set_lisp_face_attribute
);
6608 #ifdef HAVE_X_WINDOWS
6609 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6610 defsubr (&Sface_color_gray_p
);
6611 defsubr (&Sface_color_supported_p
);
6613 defsubr (&Sinternal_get_lisp_face_attribute
);
6614 defsubr (&Sinternal_lisp_face_attribute_values
);
6615 defsubr (&Sinternal_lisp_face_equal_p
);
6616 defsubr (&Sinternal_lisp_face_empty_p
);
6617 defsubr (&Sinternal_copy_lisp_face
);
6618 defsubr (&Sinternal_merge_in_global_face
);
6619 defsubr (&Sface_font
);
6620 defsubr (&Sframe_face_alist
);
6621 defsubr (&Sinternal_set_font_selection_order
);
6622 defsubr (&Sinternal_set_alternative_font_family_alist
);
6624 defsubr (&Sdump_face
);
6625 defsubr (&Sshow_face_resources
);
6626 #endif /* GLYPH_DEBUG */
6627 defsubr (&Sclear_face_cache
);
6629 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6630 "*Limit for font matching.\n\
6631 If an integer > 0, font matching functions won't load more than\n\
6632 that number of fonts when searching for a matching font.");
6633 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6635 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6636 "List of global face definitions (for internal use only.)");
6637 Vface_new_frame_defaults
= Qnil
;
6639 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6640 "*Default stipple pattern used on monochrome displays.\n\
6641 This stipple pattern is used on monochrome displays\n\
6642 instead of shades of gray for a face background color.\n\
6643 See `set-face-stipple' for possible values for this variable.");
6644 Vface_default_stipple
= build_string ("gray3");
6646 DEFVAR_LISP ("face-default-registry", &Vface_default_registry
,
6647 "Default registry and encoding to use.\n\
6648 This registry and encoding is used for unibyte text. It is set up\n\
6649 from the specified frame font when Emacs starts. (For internal use only.)");
6650 Vface_default_registry
= Qnil
;
6652 DEFVAR_LISP ("face-alternative-font-family-alist",
6653 &Vface_alternative_font_family_alist
, "");
6654 Vface_alternative_font_family_alist
= Qnil
;
6658 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6659 "Allowed scalable fonts.\n\
6660 A value of nil means don't allow any scalable fonts.\n\
6661 A value of t means allow any scalable font.\n\
6662 Otherwise, value must be a list of regular expressions. A font may be\n\
6663 scaled if its name matches a regular expression in the list.");
6664 Vscalable_fonts_allowed
= Qnil
;
6666 #endif /* SCALABLE_FONTS */
6668 #ifdef HAVE_X_WINDOWS
6669 defsubr (&Spixmap_spec_p
);
6670 defsubr (&Sx_list_fonts
);
6671 defsubr (&Sinternal_face_x_get_resource
);
6672 defsubr (&Sx_family_fonts
);
6673 defsubr (&Sx_font_family_list
);
6674 #endif /* HAVE_X_WINDOWS */
6676 /* TTY face support. */
6677 defsubr (&Sface_register_tty_color
);
6678 defsubr (&Sface_clear_tty_colors
);
6679 defsubr (&Stty_defined_colors
);
6680 Vface_tty_color_alist
= Qnil
;
6681 staticpro (&Vface_tty_color_alist
);