1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2011
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
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
31 2. Font foundary name.
33 3. Relative proportionate width, aka character set width or set
34 width (swidth), e.g. `semi-compressed'.
36 4. Font height in 1/10pt.
38 5. Font weight, e.g. `bold'.
40 6. Font slant, e.g. `italic'.
46 9. Whether or not characters should be underlined, and in what color.
48 10. Whether or not characters should be displayed in inverse video.
50 11. A background stipple, a bitmap.
52 12. Whether or not characters should be overlined, and in what color.
54 13. Whether or not characters should be strike-through, and in what
57 14. Whether or not a box should be drawn around characters, the box
58 type, and, for simple boxes, in what color.
60 15. Font-spec, or nil. This is a special attribute.
62 A font-spec is a collection of font attributes (specs).
64 When this attribute is specified, the face uses a font matching
65 with the specs as is except for what overwritten by the specs in
66 the fontset (see below). In addition, the other font-related
67 attributes (1st thru 5th) are updated from the spec.
69 On the other hand, if one of the other font-related attributes are
70 specified, the correspoinding specs in this attribute is set to nil.
72 15. A face name or list of face names from which to inherit attributes.
74 16. A specified average font width, which is invisible from Lisp,
75 and is used to ensure that a font specified on the command line,
76 for example, can be matched exactly.
78 17. A fontset name. This is another special attribute.
80 A fontset is a mappings from characters to font-specs, and the
81 specs overwrite the font-spec in the 14th attribute.
84 Faces are frame-local by nature because Emacs allows to define the
85 same named face (face names are symbols) differently for different
86 frames. Each frame has an alist of face definitions for all named
87 faces. The value of a named face in such an alist is a Lisp vector
88 with the symbol `face' in slot 0, and a slot for each of the face
89 attributes mentioned above.
91 There is also a global face alist `Vface_new_frame_defaults'. Face
92 definitions from this list are used to initialize faces of newly
95 A face doesn't have to specify all attributes. Those not specified
96 have a value of `unspecified'. Faces specifying all attributes but
97 the 14th are called `fully-specified'.
102 The display style of a given character in the text is determined by
103 combining several faces. This process is called `face merging'.
104 Any aspect of the display style that isn't specified by overlays or
105 text properties is taken from the `default' face. Since it is made
106 sure that the default face is always fully-specified, face merging
107 always results in a fully-specified face.
112 After all face attributes for a character have been determined by
113 merging faces of that character, that face is `realized'. The
114 realization process maps face attributes to what is physically
115 available on the system where Emacs runs. The result is a
116 `realized face' in form of a struct face which is stored in the
117 face cache of the frame on which it was realized.
119 Face realization is done in the context of the character to display
120 because different fonts may be used for different characters. In
121 other words, for characters that have different font
122 specifications, different realized faces are needed to display
125 Font specification is done by fontsets. See the comment in
126 fontset.c for the details. In the current implementation, all ASCII
127 characters share the same font in a fontset.
129 Faces are at first realized for ASCII characters, and, at that
130 time, assigned a specific realized fontset. Hereafter, we call
131 such a face as `ASCII face'. When a face for a multibyte character
132 is realized, it inherits (thus shares) a fontset of an ASCII face
133 that has the same attributes other than font-related ones.
135 Thus, all realized faces have a realized fontset.
140 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
141 font as ASCII characters. That is because it is expected that
142 unibyte text users specify a font that is suitable both for ASCII
143 and raw 8-bit characters.
148 Font selection tries to find the best available matching font for a
149 given (character, face) combination.
151 If the face specifies a fontset name, that fontset determines a
152 pattern for fonts of the given character. If the face specifies a
153 font name or the other font-related attributes, a fontset is
154 realized from the default fontset. In that case, that
155 specification determines a pattern for ASCII characters and the
156 default fontset determines a pattern for multibyte characters.
158 Available fonts on the system on which Emacs runs are then matched
159 against the font pattern. The result of font selection is the best
160 match for the given face attributes in this font list.
162 Font selection can be influenced by the user.
164 1. The user can specify the relative importance he gives the face
165 attributes width, height, weight, and slant by setting
166 face-font-selection-order (faces.el) to a list of face attribute
167 names. The default is '(:width :height :weight :slant), and means
168 that font selection first tries to find a good match for the font
169 width specified by a face, then---within fonts with that
170 width---tries to find a best match for the specified font height,
173 2. Setting face-font-family-alternatives allows the user to
174 specify alternative font families to try if a family specified by a
177 3. Setting face-font-registry-alternatives allows the user to
178 specify all alternative font registries to try for a face
179 specifying a registry.
181 4. Setting face-ignored-fonts allows the user to ignore specific
185 Character composition.
187 Usually, the realization process is already finished when Emacs
188 actually reflects the desired glyph matrix on the screen. However,
189 on displaying a composition (sequence of characters to be composed
190 on the screen), a suitable font for the components of the
191 composition is selected and realized while drawing them on the
192 screen, i.e. the realization process is delayed but in principle
196 Initialization of basic faces.
198 The faces `default', `modeline' are considered `basic faces'.
199 When redisplay happens the first time for a newly created frame,
200 basic faces are realized for CHARSET_ASCII. Frame parameters are
201 used to fill in unspecified attributes of the default face. */
205 #include <sys/types.h>
206 #include <sys/stat.h>
207 #include <stdio.h> /* This needs to be before termchar.h */
211 #include "character.h"
213 #include "keyboard.h"
215 #include "termhooks.h"
217 #ifdef HAVE_X_WINDOWS
221 #include <Xm/XmStrDefs.h>
222 #endif /* USE_MOTIF */
223 #endif /* HAVE_X_WINDOWS */
232 /* Redefine X specifics to W32 equivalents to avoid cluttering the
233 code with #ifdef blocks. */
234 #undef FRAME_X_DISPLAY_INFO
235 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
236 #define x_display_info w32_display_info
237 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
238 #define check_x check_w32
239 #define GCGraphicsExposures 0
240 #endif /* WINDOWSNT */
244 #undef FRAME_X_DISPLAY_INFO
245 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
246 #define x_display_info ns_display_info
247 #define FRAME_X_FONT_TABLE FRAME_NS_FONT_TABLE
248 #define check_x check_ns
249 #define GCGraphicsExposures 0
253 #include "dispextern.h"
254 #include "blockinput.h"
256 #include "intervals.h"
257 #include "termchar.h"
260 #ifdef HAVE_WINDOW_SYSTEM
262 #endif /* HAVE_WINDOW_SYSTEM */
264 #ifdef HAVE_X_WINDOWS
266 /* Compensate for a bug in Xos.h on some systems, on which it requires
267 time.h. On some such systems, Xos.h tries to redefine struct
268 timeval and struct timezone if USG is #defined while it is
271 #ifdef XOS_NEEDS_TIME_H
277 #else /* not XOS_NEEDS_TIME_H */
279 #endif /* not XOS_NEEDS_TIME_H */
281 #endif /* HAVE_X_WINDOWS */
285 /* Number of pt per inch (from the TeXbook). */
287 #define PT_PER_INCH 72.27
289 /* Non-zero if face attribute ATTR is unspecified. */
291 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
293 /* Non-zero if face attribute ATTR is `ignore-defface'. */
295 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
297 /* Value is the number of elements of VECTOR. */
299 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
301 /* Make a copy of string S on the stack using alloca. Value is a pointer
304 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
306 /* Make a copy of the contents of Lisp string S on the stack using
307 alloca. Value is a pointer to the copy. */
309 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
311 /* Size of hash table of realized faces in face caches (should be a
314 #define FACE_CACHE_BUCKETS_SIZE 1001
316 /* Keyword symbols used for face attribute names. */
318 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
319 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
320 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
321 Lisp_Object QCreverse_video
;
322 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
323 Lisp_Object QCfontset
;
325 /* Symbols used for attribute values. */
327 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
328 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
329 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
330 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
331 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
332 Lisp_Object Qultra_expanded
;
333 Lisp_Object Qreleased_button
, Qpressed_button
;
334 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
335 Lisp_Object Qunspecified
;
336 Lisp_Object Qignore_defface
;
338 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
340 /* The name of the function to call when the background of the frame
341 has changed, frame_set_background_mode. */
343 Lisp_Object Qframe_set_background_mode
;
345 /* Names of basic faces. */
347 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
348 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
349 Lisp_Object Qmode_line_inactive
, Qvertical_border
;
351 /* The symbol `face-alias'. A symbols having that property is an
352 alias for another face. Value of the property is the name of
355 Lisp_Object Qface_alias
;
357 /* Alist of alternative font families. Each element is of the form
358 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
359 try FAMILY1, then FAMILY2, ... */
361 Lisp_Object Vface_alternative_font_family_alist
;
363 /* Alist of alternative font registries. Each element is of the form
364 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
365 loaded, try REGISTRY1, then REGISTRY2, ... */
367 Lisp_Object Vface_alternative_font_registry_alist
;
369 /* Allowed scalable fonts. A value of nil means don't allow any
370 scalable fonts. A value of t means allow the use of any scalable
371 font. Otherwise, value must be a list of regular expressions. A
372 font may be scaled if its name matches a regular expression in the
375 Lisp_Object Qscalable_fonts_allowed
;
377 #define DEFAULT_FONT_LIST_LIMIT 100
379 /* The symbols `foreground-color' and `background-color' which can be
380 used as part of a `face' property. This is for compatibility with
383 Lisp_Object Qforeground_color
, Qbackground_color
;
385 /* The symbols `face' and `mouse-face' used as text properties. */
389 /* Property for basic faces which other faces cannot inherit. */
391 Lisp_Object Qface_no_inherit
;
393 /* Error symbol for wrong_type_argument in load_pixmap. */
395 Lisp_Object Qbitmap_spec_p
;
397 /* The next ID to assign to Lisp faces. */
399 static int next_lface_id
;
401 /* A vector mapping Lisp face Id's to face names. */
403 static Lisp_Object
*lface_id_to_name
;
404 static int lface_id_to_name_size
;
406 /* TTY color-related functions (defined in tty-colors.el). */
408 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
410 /* The name of the function used to compute colors on TTYs. */
412 Lisp_Object Qtty_color_alist
;
414 /* Counter for calls to clear_face_cache. If this counter reaches
415 CLEAR_FONT_TABLE_COUNT, and a frame has more than
416 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
418 static int clear_font_table_count
;
419 #define CLEAR_FONT_TABLE_COUNT 100
420 #define CLEAR_FONT_TABLE_NFONTS 10
422 /* Non-zero means face attributes have been changed since the last
423 redisplay. Used in redisplay_internal. */
425 int face_change_count
;
427 /* Non-zero means don't display bold text if a face's foreground
428 and background colors are the inverse of the default colors of the
429 display. This is a kluge to suppress `bold black' foreground text
430 which is hard to read on an LCD monitor. */
432 int tty_suppress_bold_inverse_default_colors_p
;
434 /* A list of the form `((x . y))' used to avoid consing in
435 Finternal_set_lisp_face_attribute. */
437 static Lisp_Object Vparam_value_alist
;
439 /* The total number of colors currently allocated. */
442 static int ncolors_allocated
;
443 static int npixmaps_allocated
;
447 /* Non-zero means the definition of the `menu' face for new frames has
450 int menu_face_changed_default
;
453 /* Function prototypes. */
456 struct named_merge_point
;
458 static void map_tty_color (struct frame
*, struct face
*,
459 enum lface_attribute_index
, int *);
460 static Lisp_Object
resolve_face_name (Lisp_Object
, int);
461 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
462 static int get_lface_attributes (struct frame
*, Lisp_Object
, Lisp_Object
*,
463 int, struct named_merge_point
*);
464 static int load_pixmap (struct frame
*, Lisp_Object
, unsigned *, unsigned *);
465 static struct frame
*frame_or_selected_frame (Lisp_Object
, int);
466 static void load_face_colors (struct frame
*, struct face
*, Lisp_Object
*);
467 static void free_face_colors (struct frame
*, struct face
*);
468 static int face_color_gray_p (struct frame
*, const char *);
469 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
471 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
473 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
474 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
475 static int realize_basic_faces (struct frame
*);
476 static int realize_default_face (struct frame
*);
477 static void realize_named_face (struct frame
*, Lisp_Object
, int);
478 static int lface_fully_specified_p (Lisp_Object
*);
479 static int lface_equal_p (Lisp_Object
*, Lisp_Object
*);
480 static unsigned hash_string_case_insensitive (Lisp_Object
);
481 static unsigned lface_hash (Lisp_Object
*);
482 static int lface_same_font_attributes_p (Lisp_Object
*, Lisp_Object
*);
483 static struct face_cache
*make_face_cache (struct frame
*);
484 static void clear_face_gcs (struct face_cache
*);
485 static void free_face_cache (struct face_cache
*);
486 static int face_fontset (Lisp_Object
*);
487 static void merge_face_vectors (struct frame
*, Lisp_Object
*, Lisp_Object
*,
488 struct named_merge_point
*);
489 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
490 int, struct named_merge_point
*);
491 static int set_lface_from_font (struct frame
*, Lisp_Object
, Lisp_Object
,
493 static Lisp_Object
lface_from_face_name (struct frame
*, Lisp_Object
, int);
494 static struct face
*make_realized_face (Lisp_Object
*);
495 static void cache_face (struct face_cache
*, struct face
*, unsigned);
496 static void uncache_face (struct face_cache
*, struct face
*);
498 #ifdef HAVE_WINDOW_SYSTEM
500 static GC
x_create_gc (struct frame
*, unsigned long, XGCValues
*);
501 static void x_free_gc (struct frame
*, GC
);
504 static void x_update_menu_appearance (struct frame
*);
506 extern void free_frame_menubar (struct frame
*);
507 #endif /* USE_X_TOOLKIT */
509 #endif /* HAVE_WINDOW_SYSTEM */
512 /***********************************************************************
514 ***********************************************************************/
516 #ifdef HAVE_X_WINDOWS
518 #ifdef DEBUG_X_COLORS
520 /* The following is a poor mans infrastructure for debugging X color
521 allocation problems on displays with PseudoColor-8. Some X servers
522 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
523 color reference counts completely so that they don't signal an
524 error when a color is freed whose reference count is already 0.
525 Other X servers do. To help me debug this, the following code
526 implements a simple reference counting schema of its own, for a
527 single display/screen. --gerd. */
529 /* Reference counts for pixel colors. */
531 int color_count
[256];
533 /* Register color PIXEL as allocated. */
536 register_color (pixel
)
539 xassert (pixel
< 256);
540 ++color_count
[pixel
];
544 /* Register color PIXEL as deallocated. */
547 unregister_color (pixel
)
550 xassert (pixel
< 256);
551 if (color_count
[pixel
] > 0)
552 --color_count
[pixel
];
558 /* Register N colors from PIXELS as deallocated. */
561 unregister_colors (pixels
, n
)
562 unsigned long *pixels
;
566 for (i
= 0; i
< n
; ++i
)
567 unregister_color (pixels
[i
]);
571 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
572 doc
: /* Dump currently allocated colors to stderr. */)
577 fputc ('\n', stderr
);
579 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
582 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
585 fputc ('\n', stderr
);
587 fputc ('\t', stderr
);
591 fputc ('\n', stderr
);
595 #endif /* DEBUG_X_COLORS */
598 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
599 color values. Interrupt input must be blocked when this function
603 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
605 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
607 /* If display has an immutable color map, freeing colors is not
608 necessary and some servers don't allow it. So don't do it. */
609 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
611 #ifdef DEBUG_X_COLORS
612 unregister_colors (pixels
, npixels
);
614 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
620 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
621 color values. Interrupt input must be blocked when this function
625 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
, long unsigned int *pixels
, int npixels
)
627 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
628 int class = dpyinfo
->visual
->class;
630 /* If display has an immutable color map, freeing colors is not
631 necessary and some servers don't allow it. So don't do it. */
632 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
634 #ifdef DEBUG_X_COLORS
635 unregister_colors (pixels
, npixels
);
637 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
642 /* Create and return a GC for use on frame F. GC values and mask
643 are given by XGCV and MASK. */
646 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
650 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
657 /* Free GC which was used on frame F. */
660 x_free_gc (struct frame
*f
, GC gc
)
662 eassert (interrupt_input_blocked
);
663 IF_DEBUG (xassert (--ngcs
>= 0));
664 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
667 #endif /* HAVE_X_WINDOWS */
670 /* W32 emulation of GCs */
673 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
677 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
684 /* Free GC which was used on frame F. */
687 x_free_gc (struct frame
*f
, GC gc
)
689 IF_DEBUG (xassert (--ngcs
>= 0));
693 #endif /* WINDOWSNT */
696 /* NS emulation of GCs */
699 x_create_gc (struct frame
*f
,
703 GC gc
= xmalloc (sizeof (*gc
));
705 memcpy (gc
, xgcv
, sizeof (XGCValues
));
710 x_free_gc (struct frame
*f
, GC gc
)
716 /* Like strcasecmp/stricmp. Used to compare parts of font names which
720 xstrcasecmp (const unsigned char *s1
, const unsigned char *s2
)
724 unsigned char c1
= tolower (*s1
);
725 unsigned char c2
= tolower (*s2
);
727 return c1
< c2
? -1 : 1;
732 return *s2
== 0 ? 0 : -1;
737 /* If FRAME is nil, return a pointer to the selected frame.
738 Otherwise, check that FRAME is a live frame, and return a pointer
739 to it. NPARAM is the parameter number of FRAME, for
740 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
741 Lisp function definitions. */
743 static INLINE
struct frame
*
744 frame_or_selected_frame (Lisp_Object frame
, int nparam
)
747 frame
= selected_frame
;
749 CHECK_LIVE_FRAME (frame
);
750 return XFRAME (frame
);
754 /***********************************************************************
756 ***********************************************************************/
758 /* Initialize face cache and basic faces for frame F. */
761 init_frame_faces (struct frame
*f
)
763 /* Make a face cache, if F doesn't have one. */
764 if (FRAME_FACE_CACHE (f
) == NULL
)
765 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
767 #ifdef HAVE_WINDOW_SYSTEM
768 /* Make the image cache. */
769 if (FRAME_WINDOW_P (f
))
771 /* We initialize the image cache when creating the first frame
772 on a terminal, and not during terminal creation. This way,
773 `x-open-connection' on a tty won't create an image cache. */
774 if (FRAME_IMAGE_CACHE (f
) == NULL
)
775 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
776 ++FRAME_IMAGE_CACHE (f
)->refcount
;
778 #endif /* HAVE_WINDOW_SYSTEM */
780 /* Realize basic faces. Must have enough information in frame
781 parameters to realize basic faces at this point. */
782 #ifdef HAVE_X_WINDOWS
783 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
786 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
789 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
791 if (!realize_basic_faces (f
))
796 /* Free face cache of frame F. Called from delete_frame. */
799 free_frame_faces (struct frame
*f
)
801 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
805 free_face_cache (face_cache
);
806 FRAME_FACE_CACHE (f
) = NULL
;
809 #ifdef HAVE_WINDOW_SYSTEM
810 if (FRAME_WINDOW_P (f
))
812 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
815 --image_cache
->refcount
;
816 if (image_cache
->refcount
== 0)
817 free_image_cache (f
);
820 #endif /* HAVE_WINDOW_SYSTEM */
824 /* Clear face caches, and recompute basic faces for frame F. Call
825 this after changing frame parameters on which those faces depend,
826 or when realized faces have been freed due to changing attributes
830 recompute_basic_faces (struct frame
*f
)
832 if (FRAME_FACE_CACHE (f
))
834 clear_face_cache (0);
835 if (!realize_basic_faces (f
))
841 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
842 try to free unused fonts, too. */
845 clear_face_cache (int clear_fonts_p
)
847 #ifdef HAVE_WINDOW_SYSTEM
848 Lisp_Object tail
, frame
;
852 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
855 /* Not yet implemented. */
856 clear_font_cache (frame
);
859 /* From time to time see if we can unload some fonts. This also
860 frees all realized faces on all frames. Fonts needed by
861 faces will be loaded again when faces are realized again. */
862 clear_font_table_count
= 0;
864 FOR_EACH_FRAME (tail
, frame
)
866 struct frame
*f
= XFRAME (frame
);
867 if (FRAME_WINDOW_P (f
)
868 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
869 free_all_realized_faces (frame
);
874 /* Clear GCs of realized faces. */
875 FOR_EACH_FRAME (tail
, frame
)
878 if (FRAME_WINDOW_P (f
))
879 clear_face_gcs (FRAME_FACE_CACHE (f
));
881 clear_image_caches (Qnil
);
883 #endif /* HAVE_WINDOW_SYSTEM */
887 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
888 doc
: /* Clear face caches on all frames.
889 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
890 (Lisp_Object thoroughly
)
892 clear_face_cache (!NILP (thoroughly
));
894 ++windows_or_buffers_changed
;
899 /***********************************************************************
901 ***********************************************************************/
903 #ifdef HAVE_WINDOW_SYSTEM
905 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
906 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
907 A bitmap specification is either a string, a file name, or a list
908 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
909 HEIGHT is its height, and DATA is a string containing the bits of
910 the pixmap. Bits are stored row by row, each row occupies
911 \(WIDTH + 7)/8 bytes. */)
916 if (STRINGP (object
))
917 /* If OBJECT is a string, it's a file name. */
919 else if (CONSP (object
))
921 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
922 HEIGHT must be integers > 0, and DATA must be string large
923 enough to hold a bitmap of the specified size. */
924 Lisp_Object width
, height
, data
;
926 height
= width
= data
= Qnil
;
930 width
= XCAR (object
);
931 object
= XCDR (object
);
934 height
= XCAR (object
);
935 object
= XCDR (object
);
937 data
= XCAR (object
);
941 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
943 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
945 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
950 return pixmap_p
? Qt
: Qnil
;
954 /* Load a bitmap according to NAME (which is either a file name or a
955 pixmap spec) for use on frame F. Value is the bitmap_id (see
956 xfns.c). If NAME is nil, return with a bitmap id of zero. If
957 bitmap cannot be loaded, display a message saying so, and return
958 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
959 if these pointers are not null. */
962 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
, unsigned int *h_ptr
)
969 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
974 /* Decode a bitmap spec into a bitmap. */
979 w
= XINT (Fcar (name
));
980 h
= XINT (Fcar (Fcdr (name
)));
981 bits
= Fcar (Fcdr (Fcdr (name
)));
983 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
988 /* It must be a string -- a file name. */
989 bitmap_id
= x_create_bitmap_from_file (f
, name
);
995 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1006 ++npixmaps_allocated
;
1009 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1012 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1018 #endif /* HAVE_WINDOW_SYSTEM */
1022 /***********************************************************************
1024 ***********************************************************************/
1026 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1027 RGB_LIST should contain (at least) 3 lisp integers.
1028 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1031 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
1033 #define PARSE_RGB_LIST_FIELD(field) \
1034 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1036 color->field = XINT (XCAR (rgb_list)); \
1037 rgb_list = XCDR (rgb_list); \
1042 PARSE_RGB_LIST_FIELD (red
);
1043 PARSE_RGB_LIST_FIELD (green
);
1044 PARSE_RGB_LIST_FIELD (blue
);
1050 /* Lookup on frame F the color described by the lisp string COLOR.
1051 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1052 non-zero, then the `standard' definition of the same color is
1056 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
, XColor
*std_color
)
1058 Lisp_Object frame
, color_desc
;
1060 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1063 XSETFRAME (frame
, f
);
1065 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1066 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1070 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1073 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1075 rgb
= XCDR (XCDR (color_desc
));
1076 if (! parse_rgb_list (rgb
, tty_color
))
1079 /* Should we fill in STD_COLOR too? */
1082 /* Default STD_COLOR to the same as TTY_COLOR. */
1083 *std_color
= *tty_color
;
1085 /* Do a quick check to see if the returned descriptor is
1086 actually _exactly_ equal to COLOR, otherwise we have to
1087 lookup STD_COLOR separately. If it's impossible to lookup
1088 a standard color, we just give up and use TTY_COLOR. */
1089 if ((!STRINGP (XCAR (color_desc
))
1090 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1091 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1093 /* Look up STD_COLOR separately. */
1094 rgb
= call1 (Qtty_color_standard_values
, color
);
1095 if (! parse_rgb_list (rgb
, std_color
))
1102 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1103 /* We were called early during startup, and the colors are not
1104 yet set up in tty-defined-color-alist. Don't return a failure
1105 indication, since this produces the annoying "Unable to
1106 load color" messages in the *Messages* buffer. */
1109 /* tty-color-desc seems to have returned a bad value. */
1113 /* A version of defined_color for non-X frames. */
1116 tty_defined_color (struct frame
*f
, const char *color_name
,
1117 XColor
*color_def
, int alloc
)
1122 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1124 color_def
->blue
= 0;
1125 color_def
->green
= 0;
1128 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1130 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1132 if (strcmp (color_name
, "unspecified-fg") == 0)
1133 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1134 else if (strcmp (color_name
, "unspecified-bg") == 0)
1135 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1138 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1145 /* Decide if color named COLOR_NAME is valid for the display
1146 associated with the frame F; if so, return the rgb values in
1147 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1149 This does the right thing for any type of frame. */
1152 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
, int alloc
)
1154 if (!FRAME_WINDOW_P (f
))
1155 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1156 #ifdef HAVE_X_WINDOWS
1157 else if (FRAME_X_P (f
))
1158 return x_defined_color (f
, color_name
, color_def
, alloc
);
1161 else if (FRAME_W32_P (f
))
1162 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1165 else if (FRAME_NS_P (f
))
1166 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1173 /* Given the index IDX of a tty color on frame F, return its name, a
1177 tty_color_name (struct frame
*f
, int idx
)
1179 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1182 Lisp_Object coldesc
;
1184 XSETFRAME (frame
, f
);
1185 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1187 if (!NILP (coldesc
))
1188 return XCAR (coldesc
);
1191 /* We can have an MSDOG frame under -nw for a short window of
1192 opportunity before internal_terminal_init is called. DTRT. */
1193 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1194 return msdos_stdcolor_name (idx
);
1197 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1198 return build_string (unspecified_fg
);
1199 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1200 return build_string (unspecified_bg
);
1202 return Qunspecified
;
1206 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1209 The criterion implemented here is not a terribly sophisticated one. */
1212 face_color_gray_p (struct frame
*f
, const char *color_name
)
1217 if (defined_color (f
, color_name
, &color
, 0))
1218 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1219 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1221 ((eabs (color
.red
- color
.green
)
1222 < max (color
.red
, color
.green
) / 20)
1223 && (eabs (color
.green
- color
.blue
)
1224 < max (color
.green
, color
.blue
) / 20)
1225 && (eabs (color
.blue
- color
.red
)
1226 < max (color
.blue
, color
.red
) / 20)));
1234 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1235 BACKGROUND_P non-zero means the color will be used as background
1239 face_color_supported_p (struct frame
*f
, const char *color_name
, int background_p
)
1244 XSETFRAME (frame
, f
);
1246 #ifdef HAVE_WINDOW_SYSTEM
1248 ? (!NILP (Fxw_display_color_p (frame
))
1249 || xstrcasecmp (color_name
, "black") == 0
1250 || xstrcasecmp (color_name
, "white") == 0
1252 && face_color_gray_p (f
, color_name
))
1253 || (!NILP (Fx_display_grayscale_p (frame
))
1254 && face_color_gray_p (f
, color_name
)))
1257 tty_defined_color (f
, color_name
, ¬_used
, 0);
1261 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1262 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1263 FRAME specifies the frame and thus the display for interpreting COLOR.
1264 If FRAME is nil or omitted, use the selected frame. */)
1265 (Lisp_Object color
, Lisp_Object frame
)
1269 CHECK_STRING (color
);
1271 frame
= selected_frame
;
1273 CHECK_FRAME (frame
);
1275 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1279 DEFUN ("color-supported-p", Fcolor_supported_p
,
1280 Scolor_supported_p
, 1, 3, 0,
1281 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1282 BACKGROUND-P non-nil means COLOR is used as a background.
1283 Otherwise, this function tells whether it can be used as a foreground.
1284 If FRAME is nil or omitted, use the selected frame.
1285 COLOR must be a valid color name. */)
1286 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1290 CHECK_STRING (color
);
1292 frame
= selected_frame
;
1294 CHECK_FRAME (frame
);
1296 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1302 /* Load color with name NAME for use by face FACE on frame F.
1303 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1304 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1305 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1306 pixel color. If color cannot be loaded, display a message, and
1307 return the foreground, background or underline color of F, but
1308 record that fact in flags of the face so that we don't try to free
1312 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
, enum lface_attribute_index target_index
)
1316 xassert (STRINGP (name
));
1317 xassert (target_index
== LFACE_FOREGROUND_INDEX
1318 || target_index
== LFACE_BACKGROUND_INDEX
1319 || target_index
== LFACE_UNDERLINE_INDEX
1320 || target_index
== LFACE_OVERLINE_INDEX
1321 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1322 || target_index
== LFACE_BOX_INDEX
);
1324 /* if the color map is full, defined_color will return a best match
1325 to the values in an existing cell. */
1326 if (!defined_color (f
, SDATA (name
), &color
, 1))
1328 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1330 switch (target_index
)
1332 case LFACE_FOREGROUND_INDEX
:
1333 face
->foreground_defaulted_p
= 1;
1334 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1337 case LFACE_BACKGROUND_INDEX
:
1338 face
->background_defaulted_p
= 1;
1339 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1342 case LFACE_UNDERLINE_INDEX
:
1343 face
->underline_defaulted_p
= 1;
1344 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1347 case LFACE_OVERLINE_INDEX
:
1348 face
->overline_color_defaulted_p
= 1;
1349 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1352 case LFACE_STRIKE_THROUGH_INDEX
:
1353 face
->strike_through_color_defaulted_p
= 1;
1354 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1357 case LFACE_BOX_INDEX
:
1358 face
->box_color_defaulted_p
= 1;
1359 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1368 ++ncolors_allocated
;
1375 #ifdef HAVE_WINDOW_SYSTEM
1377 /* Load colors for face FACE which is used on frame F. Colors are
1378 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1379 of ATTRS. If the background color specified is not supported on F,
1380 try to emulate gray colors with a stipple from Vface_default_stipple. */
1383 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1387 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1388 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1390 /* Swap colors if face is inverse-video. */
1391 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1399 /* Check for support for foreground, not for background because
1400 face_color_supported_p is smart enough to know that grays are
1401 "supported" as background because we are supposed to use stipple
1403 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1404 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1406 x_destroy_bitmap (f
, face
->stipple
);
1407 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1408 &face
->pixmap_w
, &face
->pixmap_h
);
1411 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1412 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1416 /* Free color PIXEL on frame F. */
1419 unload_color (struct frame
*f
, long unsigned int pixel
)
1421 #ifdef HAVE_X_WINDOWS
1425 x_free_colors (f
, &pixel
, 1);
1432 /* Free colors allocated for FACE. */
1435 free_face_colors (struct frame
*f
, struct face
*face
)
1437 /* PENDING(NS): need to do something here? */
1438 #ifdef HAVE_X_WINDOWS
1439 if (face
->colors_copied_bitwise_p
)
1444 if (!face
->foreground_defaulted_p
)
1446 x_free_colors (f
, &face
->foreground
, 1);
1447 IF_DEBUG (--ncolors_allocated
);
1450 if (!face
->background_defaulted_p
)
1452 x_free_colors (f
, &face
->background
, 1);
1453 IF_DEBUG (--ncolors_allocated
);
1456 if (face
->underline_p
1457 && !face
->underline_defaulted_p
)
1459 x_free_colors (f
, &face
->underline_color
, 1);
1460 IF_DEBUG (--ncolors_allocated
);
1463 if (face
->overline_p
1464 && !face
->overline_color_defaulted_p
)
1466 x_free_colors (f
, &face
->overline_color
, 1);
1467 IF_DEBUG (--ncolors_allocated
);
1470 if (face
->strike_through_p
1471 && !face
->strike_through_color_defaulted_p
)
1473 x_free_colors (f
, &face
->strike_through_color
, 1);
1474 IF_DEBUG (--ncolors_allocated
);
1477 if (face
->box
!= FACE_NO_BOX
1478 && !face
->box_color_defaulted_p
)
1480 x_free_colors (f
, &face
->box_color
, 1);
1481 IF_DEBUG (--ncolors_allocated
);
1485 #endif /* HAVE_X_WINDOWS */
1488 #endif /* HAVE_WINDOW_SYSTEM */
1492 /***********************************************************************
1494 ***********************************************************************/
1496 /* An enumerator for each field of an XLFD font name. */
1517 /* An enumerator for each possible slant value of a font. Taken from
1518 the XLFD specification. */
1526 XLFD_SLANT_REVERSE_ITALIC
,
1527 XLFD_SLANT_REVERSE_OBLIQUE
,
1531 /* Relative font weight according to XLFD documentation. */
1535 XLFD_WEIGHT_UNKNOWN
,
1536 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1537 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1538 XLFD_WEIGHT_LIGHT
, /* 30 */
1539 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1540 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1541 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1542 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1543 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1544 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1547 /* Relative proportionate width. */
1551 XLFD_SWIDTH_UNKNOWN
,
1552 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1553 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1554 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1555 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1556 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1557 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1558 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1559 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1560 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1563 /* Order by which font selection chooses fonts. The default values
1564 mean `first, find a best match for the font width, then for the
1565 font height, then for weight, then for slant.' This variable can be
1566 set via set-face-font-sort-order. */
1568 static int font_sort_order
[4];
1570 #ifdef HAVE_WINDOW_SYSTEM
1572 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1575 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1577 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1578 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1581 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1583 enum font_property_index idx
= font_props_for_sorting
[i
];
1584 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1587 if (idx
<= FONT_REGISTRY_INDEX
)
1590 result
= STRINGP (val2
) ? strcmp (SDATA (val1
), SDATA (val2
)) : -1;
1592 result
= STRINGP (val2
) ? 1 : 0;
1596 if (INTEGERP (val1
))
1597 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1599 result
= INTEGERP (val2
) ? 1 : 0;
1607 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1608 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1609 If FAMILY is omitted or nil, list all families.
1610 Otherwise, FAMILY must be a string, possibly containing wildcards
1612 If FRAME is omitted or nil, use the selected frame.
1613 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1614 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1615 FAMILY is the font family name. POINT-SIZE is the size of the
1616 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1617 width, weight and slant of the font. These symbols are the same as for
1618 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1619 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1620 giving the registry and encoding of the font.
1621 The result list is sorted according to the current setting of
1622 the face font sort order. */)
1623 (Lisp_Object family
, Lisp_Object frame
)
1625 Lisp_Object font_spec
, list
, *drivers
, vec
;
1626 int i
, nfonts
, ndrivers
;
1630 frame
= selected_frame
;
1631 CHECK_LIVE_FRAME (frame
);
1633 font_spec
= Ffont_spec (0, NULL
);
1636 CHECK_STRING (family
);
1637 font_parse_family_registry (family
, Qnil
, font_spec
);
1640 list
= font_list_entities (frame
, font_spec
);
1644 /* Sort the font entities. */
1645 for (i
= 0; i
< 4; i
++)
1646 switch (font_sort_order
[i
])
1649 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1650 case XLFD_POINT_SIZE
:
1651 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1653 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1655 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1657 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1658 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1659 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1660 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1662 ndrivers
= XINT (Flength (list
));
1663 drivers
= alloca (sizeof (Lisp_Object
) * ndrivers
);
1664 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1665 drivers
[i
] = XCAR (list
);
1666 vec
= Fvconcat (ndrivers
, drivers
);
1667 nfonts
= ASIZE (vec
);
1669 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1670 compare_fonts_by_sort_order
);
1673 for (i
= nfonts
- 1; i
>= 0; --i
)
1675 Lisp_Object font
= AREF (vec
, i
);
1676 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1678 Lisp_Object spacing
;
1680 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1681 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1682 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1683 XFRAME (frame
)->resy
);
1684 ASET (v
, 2, make_number (point
));
1685 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1686 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1687 spacing
= Ffont_get (font
, QCspacing
);
1688 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1689 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1690 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1692 result
= Fcons (v
, result
);
1698 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1699 doc
: /* Return a list of the names of available fonts matching PATTERN.
1700 If optional arguments FACE and FRAME are specified, return only fonts
1701 the same size as FACE on FRAME.
1703 PATTERN should be a string containing a font name in the XLFD,
1704 Fontconfig, or GTK format. A font name given in the XLFD format may
1705 contain wildcard characters:
1706 the * character matches any substring, and
1707 the ? character matches any single character.
1708 PATTERN is case-insensitive.
1710 The return value is a list of strings, suitable as arguments to
1713 Fonts Emacs can't use may or may not be excluded
1714 even if they match PATTERN and FACE.
1715 The optional fourth argument MAXIMUM sets a limit on how many
1716 fonts to match. The first MAXIMUM fonts are reported.
1717 The optional fifth argument WIDTH, if specified, is a number of columns
1718 occupied by a character of a font. In that case, return only fonts
1719 the WIDTH times as wide as FACE on FRAME. */)
1720 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
, Lisp_Object maximum
, Lisp_Object width
)
1726 CHECK_STRING (pattern
);
1728 if (! NILP (maximum
))
1729 CHECK_NATNUM (maximum
);
1732 CHECK_NUMBER (width
);
1734 /* We can't simply call check_x_frame because this function may be
1735 called before any frame is created. */
1737 frame
= selected_frame
;
1738 f
= frame_or_selected_frame (frame
, 2);
1739 if (! FRAME_WINDOW_P (f
))
1741 /* Perhaps we have not yet created any frame. */
1747 /* Determine the width standard for comparison with the fonts we find. */
1753 /* This is of limited utility since it works with character
1754 widths. Keep it for compatibility. --gerd. */
1755 int face_id
= lookup_named_face (f
, face
, 0);
1756 struct face
*face
= (face_id
< 0
1758 : FACE_FROM_ID (f
, face_id
));
1760 if (face
&& face
->font
)
1762 size
= face
->font
->pixel_size
;
1763 avgwidth
= face
->font
->average_width
;
1767 size
= FRAME_FONT (f
)->pixel_size
;
1768 avgwidth
= FRAME_FONT (f
)->average_width
;
1771 avgwidth
*= XINT (width
);
1775 Lisp_Object font_spec
;
1776 Lisp_Object args
[2], tail
;
1778 font_spec
= font_spec_from_name (pattern
);
1779 if (!FONTP (font_spec
))
1780 signal_error ("Invalid font name", pattern
);
1784 Ffont_put (font_spec
, QCsize
, make_number (size
));
1785 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1787 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1788 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1790 Lisp_Object font_entity
;
1792 font_entity
= XCAR (tail
);
1793 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1794 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1795 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1797 /* This is a scalable font. For backward compatibility,
1798 we set the specified size. */
1799 font_entity
= Fcopy_font_spec (font_entity
);
1800 ASET (font_entity
, FONT_SIZE_INDEX
,
1801 AREF (font_spec
, FONT_SIZE_INDEX
));
1803 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1806 /* We don't have to check fontsets. */
1808 args
[1] = list_fontsets (f
, pattern
, size
);
1809 return Fnconc (2, args
);
1813 #endif /* HAVE_WINDOW_SYSTEM */
1816 /***********************************************************************
1818 ***********************************************************************/
1820 /* Access face attributes of face LFACE, a Lisp vector. */
1822 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1823 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1824 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1825 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1826 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1827 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1828 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1829 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1830 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1831 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1832 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1833 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1834 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1835 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1836 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1837 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1838 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1840 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1841 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1843 #define LFACEP(LFACE) \
1845 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
1846 && EQ (AREF (LFACE, 0), Qface))
1851 /* Check consistency of Lisp face attribute vector ATTRS. */
1854 check_lface_attrs (attrs
)
1857 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1858 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1859 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1860 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1861 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1862 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1863 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1864 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1865 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1866 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1867 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1868 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1869 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1870 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1871 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1872 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1873 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1874 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1875 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1876 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1877 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1878 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1879 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1880 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
1881 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1882 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1883 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1884 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1885 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1886 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1887 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1888 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1889 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1890 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1891 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1892 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1893 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1894 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1895 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1896 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1897 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1898 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1899 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1900 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1901 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1902 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1903 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1904 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1905 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1906 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1907 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1908 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1909 #ifdef HAVE_WINDOW_SYSTEM
1910 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1911 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1912 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1913 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1914 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1915 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1916 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1917 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1918 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
1923 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1931 xassert (LFACEP (lface
));
1932 check_lface_attrs (XVECTOR (lface
)->contents
);
1936 #else /* GLYPH_DEBUG == 0 */
1938 #define check_lface_attrs(attrs) (void) 0
1939 #define check_lface(lface) (void) 0
1941 #endif /* GLYPH_DEBUG == 0 */
1945 /* Face-merge cycle checking. */
1947 enum named_merge_point_kind
1949 NAMED_MERGE_POINT_NORMAL
,
1950 NAMED_MERGE_POINT_REMAP
1953 /* A `named merge point' is simply a point during face-merging where we
1954 look up a face by name. We keep a stack of which named lookups we're
1955 currently processing so that we can easily detect cycles, using a
1956 linked- list of struct named_merge_point structures, typically
1957 allocated on the stack frame of the named lookup functions which are
1958 active (so no consing is required). */
1959 struct named_merge_point
1961 Lisp_Object face_name
;
1962 enum named_merge_point_kind named_merge_point_kind
;
1963 struct named_merge_point
*prev
;
1967 /* If a face merging cycle is detected for FACE_NAME, return 0,
1968 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1969 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1970 pointed to by NAMED_MERGE_POINTS, and return 1. */
1973 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1974 Lisp_Object face_name
,
1975 enum named_merge_point_kind named_merge_point_kind
,
1976 struct named_merge_point
**named_merge_points
)
1978 struct named_merge_point
*prev
;
1980 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1981 if (EQ (face_name
, prev
->face_name
))
1983 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1984 /* A cycle, so fail. */
1986 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1987 /* A remap `hides ' any previous normal merge points
1988 (because the remap means that it's actually different face),
1989 so as we know the current merge point must be normal, we
1990 can just assume it's OK. */
1994 new_named_merge_point
->face_name
= face_name
;
1995 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1996 new_named_merge_point
->prev
= *named_merge_points
;
1998 *named_merge_points
= new_named_merge_point
;
2005 #if 0 /* Seems to be unused. */
2007 internal_resolve_face_name (nargs
, args
)
2011 return Fget (args
[0], args
[1]);
2015 resolve_face_name_error (ignore
)
2022 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2023 to make it a symbol. If FACE_NAME is an alias for another face,
2024 return that face's name.
2026 Return default face in case of errors. */
2029 resolve_face_name (Lisp_Object face_name
, int signal_p
)
2031 Lisp_Object orig_face
;
2032 Lisp_Object tortoise
, hare
;
2034 if (STRINGP (face_name
))
2035 face_name
= intern (SDATA (face_name
));
2037 if (NILP (face_name
) || !SYMBOLP (face_name
))
2040 orig_face
= face_name
;
2041 tortoise
= hare
= face_name
;
2046 hare
= Fget (hare
, Qface_alias
);
2047 if (NILP (hare
) || !SYMBOLP (hare
))
2051 hare
= Fget (hare
, Qface_alias
);
2052 if (NILP (hare
) || !SYMBOLP (hare
))
2055 tortoise
= Fget (tortoise
, Qface_alias
);
2056 if (EQ (hare
, tortoise
))
2059 xsignal1 (Qcircular_list
, orig_face
);
2068 /* Return the face definition of FACE_NAME on frame F. F null means
2069 return the definition for new frames. FACE_NAME may be a string or
2070 a symbol (apparently Emacs 20.2 allowed strings as face names in
2071 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2072 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2073 is zero, value is nil if FACE_NAME is not a valid face name. */
2074 static INLINE Lisp_Object
2075 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2080 lface
= assq_no_quit (face_name
, f
->face_alist
);
2082 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2085 lface
= XCDR (lface
);
2087 signal_error ("Invalid face", face_name
);
2089 check_lface (lface
);
2094 /* Return the face definition of FACE_NAME on frame F. F null means
2095 return the definition for new frames. FACE_NAME may be a string or
2096 a symbol (apparently Emacs 20.2 allowed strings as face names in
2097 face text properties; Ediff uses that). If FACE_NAME is an alias
2098 for another face, return that face's definition. If SIGNAL_P is
2099 non-zero, signal an error if FACE_NAME is not a valid face name.
2100 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2102 static INLINE Lisp_Object
2103 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2105 face_name
= resolve_face_name (face_name
, signal_p
);
2106 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2110 /* Get face attributes of face FACE_NAME from frame-local faces on
2111 frame F. Store the resulting attributes in ATTRS which must point
2112 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2113 is non-zero, signal an error if FACE_NAME does not name a face.
2114 Otherwise, value is zero if FACE_NAME is not a face. */
2117 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
)
2121 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2124 memcpy (attrs
, XVECTOR (lface
)->contents
,
2125 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2127 return !NILP (lface
);
2130 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2131 F. Store the resulting attributes in ATTRS which must point to a
2132 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2133 alias for another face, use that face's definition. If SIGNAL_P is
2134 non-zero, signal an error if FACE_NAME does not name a face.
2135 Otherwise, value is zero if FACE_NAME is not a face. */
2138 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
, struct named_merge_point
*named_merge_points
)
2140 Lisp_Object face_remapping
;
2142 face_name
= resolve_face_name (face_name
, signal_p
);
2144 /* See if SYMBOL has been remapped to some other face (usually this
2145 is done buffer-locally). */
2146 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2147 if (CONSP (face_remapping
))
2149 struct named_merge_point named_merge_point
;
2151 if (push_named_merge_point (&named_merge_point
,
2152 face_name
, NAMED_MERGE_POINT_REMAP
,
2153 &named_merge_points
))
2157 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2158 attrs
[i
] = Qunspecified
;
2160 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2161 signal_p
, named_merge_points
);
2165 /* Default case, no remapping. */
2166 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2170 /* Non-zero if all attributes in face attribute vector ATTRS are
2171 specified, i.e. are non-nil. */
2174 lface_fully_specified_p (Lisp_Object
*attrs
)
2178 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2179 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2180 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2183 return i
== LFACE_VECTOR_SIZE
;
2186 #ifdef HAVE_WINDOW_SYSTEM
2188 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2189 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2190 exception is `font' attribute. It is set to FONT_OBJECT regardless
2194 set_lface_from_font (struct frame
*f
, Lisp_Object lface
, Lisp_Object font_object
, int force_p
)
2197 struct font
*font
= XFONT_OBJECT (font_object
);
2199 /* Set attributes only if unspecified, otherwise face defaults for
2200 new frames would never take effect. If the font doesn't have a
2201 specific property, set a normal value for that. */
2203 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2205 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2207 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2210 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2212 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2214 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2217 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2219 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2222 LFACE_HEIGHT (lface
) = make_number (pt
);
2225 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2227 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2228 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2230 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2232 val
= FONT_SLANT_FOR_FACE (font_object
);
2233 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2235 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2237 val
= FONT_WIDTH_FOR_FACE (font_object
);
2238 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2241 LFACE_FONT (lface
) = font_object
;
2245 #endif /* HAVE_WINDOW_SYSTEM */
2248 /* Merges the face height FROM with the face height TO, and returns the
2249 merged height. If FROM is an invalid height, then INVALID is
2250 returned instead. FROM and TO may be either absolute face heights or
2251 `relative' heights; the returned value is always an absolute height
2252 unless both FROM and TO are relative. */
2255 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2257 Lisp_Object result
= invalid
;
2259 if (INTEGERP (from
))
2260 /* FROM is absolute, just use it as is. */
2262 else if (FLOATP (from
))
2263 /* FROM is a scale, use it to adjust TO. */
2266 /* relative X absolute => absolute */
2267 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2268 else if (FLOATP (to
))
2269 /* relative X relative => relative */
2270 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2271 else if (UNSPECIFIEDP (to
))
2274 else if (FUNCTIONP (from
))
2275 /* FROM is a function, which use to adjust TO. */
2277 /* Call function with current height as argument.
2278 From is the new height. */
2279 Lisp_Object args
[2];
2283 result
= safe_call (2, args
);
2285 /* Ensure that if TO was absolute, so is the result. */
2286 if (INTEGERP (to
) && !INTEGERP (result
))
2294 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2295 store the resulting attributes in TO, which must be already be
2296 completely specified and contain only absolute attributes. Every
2297 specified attribute of FROM overrides the corresponding attribute of
2298 TO; relative attributes in FROM are merged with the absolute value in
2299 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2300 loops in face inheritance/remapping; it should be 0 when called from
2304 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2308 /* If FROM inherits from some other faces, merge their attributes into
2309 TO before merging FROM's direct attributes. Note that an :inherit
2310 attribute of `unspecified' is the same as one of nil; we never
2311 merge :inherit attributes, so nil is more correct, but lots of
2312 other code uses `unspecified' as a generic value for face attributes. */
2313 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2314 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2315 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2317 i
= LFACE_FONT_INDEX
;
2318 if (!UNSPECIFIEDP (from
[i
]))
2320 if (!UNSPECIFIEDP (to
[i
]))
2321 to
[i
] = Fmerge_font_spec (from
[i
], to
[i
]);
2323 to
[i
] = Fcopy_font_spec (from
[i
]);
2324 if (! NILP (AREF (to
[i
], FONT_FOUNDRY_INDEX
)))
2325 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FOUNDRY_INDEX
));
2326 if (! NILP (AREF (to
[i
], FONT_FAMILY_INDEX
)))
2327 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FAMILY_INDEX
));
2328 if (! NILP (AREF (to
[i
], FONT_WEIGHT_INDEX
)))
2329 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (to
[i
]);
2330 if (! NILP (AREF (to
[i
], FONT_SLANT_INDEX
)))
2331 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (to
[i
]);
2332 if (! NILP (AREF (to
[i
], FONT_WIDTH_INDEX
)))
2333 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (to
[i
]);
2334 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2337 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2338 if (!UNSPECIFIEDP (from
[i
]))
2340 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2342 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2343 font_clear_prop (to
, FONT_SIZE_INDEX
);
2345 else if (i
!= LFACE_FONT_INDEX
2346 && ! EQ (to
[i
], from
[i
]))
2349 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2350 font_clear_prop (to
,
2351 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2352 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2353 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2354 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2355 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2356 : FONT_SLANT_INDEX
));
2360 /* TO is always an absolute face, which should inherit from nothing.
2361 We blindly copy the :inherit attribute above and fix it up here. */
2362 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2365 /* Merge the named face FACE_NAME on frame F, into the vector of face
2366 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2367 inheritance. Returns true if FACE_NAME is a valid face name and
2368 merging succeeded. */
2371 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2373 struct named_merge_point named_merge_point
;
2375 if (push_named_merge_point (&named_merge_point
,
2376 face_name
, NAMED_MERGE_POINT_NORMAL
,
2377 &named_merge_points
))
2379 struct gcpro gcpro1
;
2380 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2381 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2385 GCPRO1 (named_merge_point
.face_name
);
2386 merge_face_vectors (f
, from
, to
, named_merge_points
);
2397 /* Merge face attributes from the lisp `face reference' FACE_REF on
2398 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2399 problems with FACE_REF cause an error message to be shown. Return
2400 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2401 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2402 list structure; it may be 0 for most callers.
2404 FACE_REF may be a single face specification or a list of such
2405 specifications. Each face specification can be:
2407 1. A symbol or string naming a Lisp face.
2409 2. A property list of the form (KEYWORD VALUE ...) where each
2410 KEYWORD is a face attribute name, and value is an appropriate value
2413 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2414 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2415 for compatibility with 20.2.
2417 Face specifications earlier in lists take precedence over later
2421 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
, int err_msgs
, struct named_merge_point
*named_merge_points
)
2423 int ok
= 1; /* Succeed without an error? */
2425 if (CONSP (face_ref
))
2427 Lisp_Object first
= XCAR (face_ref
);
2429 if (EQ (first
, Qforeground_color
)
2430 || EQ (first
, Qbackground_color
))
2432 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2433 . COLOR). COLOR must be a string. */
2434 Lisp_Object color_name
= XCDR (face_ref
);
2435 Lisp_Object color
= first
;
2437 if (STRINGP (color_name
))
2439 if (EQ (color
, Qforeground_color
))
2440 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2442 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2447 add_to_log ("Invalid face color", color_name
, Qnil
);
2451 else if (SYMBOLP (first
)
2452 && *SDATA (SYMBOL_NAME (first
)) == ':')
2454 /* Assume this is the property list form. */
2455 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2457 Lisp_Object keyword
= XCAR (face_ref
);
2458 Lisp_Object value
= XCAR (XCDR (face_ref
));
2461 /* Specifying `unspecified' is a no-op. */
2462 if (EQ (value
, Qunspecified
))
2464 else if (EQ (keyword
, QCfamily
))
2466 if (STRINGP (value
))
2468 to
[LFACE_FAMILY_INDEX
] = value
;
2469 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2474 else if (EQ (keyword
, QCfoundry
))
2476 if (STRINGP (value
))
2478 to
[LFACE_FOUNDRY_INDEX
] = value
;
2479 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2484 else if (EQ (keyword
, QCheight
))
2486 Lisp_Object new_height
=
2487 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2489 if (! NILP (new_height
))
2491 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2492 font_clear_prop (to
, FONT_SIZE_INDEX
);
2497 else if (EQ (keyword
, QCweight
))
2499 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2501 to
[LFACE_WEIGHT_INDEX
] = value
;
2502 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2507 else if (EQ (keyword
, QCslant
))
2509 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2511 to
[LFACE_SLANT_INDEX
] = value
;
2512 font_clear_prop (to
, FONT_SLANT_INDEX
);
2517 else if (EQ (keyword
, QCunderline
))
2522 to
[LFACE_UNDERLINE_INDEX
] = value
;
2526 else if (EQ (keyword
, QCoverline
))
2531 to
[LFACE_OVERLINE_INDEX
] = value
;
2535 else if (EQ (keyword
, QCstrike_through
))
2540 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2544 else if (EQ (keyword
, QCbox
))
2547 value
= make_number (1);
2548 if (INTEGERP (value
)
2552 to
[LFACE_BOX_INDEX
] = value
;
2556 else if (EQ (keyword
, QCinverse_video
)
2557 || EQ (keyword
, QCreverse_video
))
2559 if (EQ (value
, Qt
) || NILP (value
))
2560 to
[LFACE_INVERSE_INDEX
] = value
;
2564 else if (EQ (keyword
, QCforeground
))
2566 if (STRINGP (value
))
2567 to
[LFACE_FOREGROUND_INDEX
] = value
;
2571 else if (EQ (keyword
, QCbackground
))
2573 if (STRINGP (value
))
2574 to
[LFACE_BACKGROUND_INDEX
] = value
;
2578 else if (EQ (keyword
, QCstipple
))
2580 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
2581 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2582 if (!NILP (pixmap_p
))
2583 to
[LFACE_STIPPLE_INDEX
] = value
;
2588 else if (EQ (keyword
, QCwidth
))
2590 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2592 to
[LFACE_SWIDTH_INDEX
] = value
;
2593 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2598 else if (EQ (keyword
, QCinherit
))
2600 /* This is not really very useful; it's just like a
2601 normal face reference. */
2602 if (! merge_face_ref (f
, value
, to
,
2603 err_msgs
, named_merge_points
))
2611 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2615 face_ref
= XCDR (XCDR (face_ref
));
2620 /* This is a list of face refs. Those at the beginning of the
2621 list take precedence over what follows, so we have to merge
2622 from the end backwards. */
2623 Lisp_Object next
= XCDR (face_ref
);
2626 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2628 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2634 /* FACE_REF ought to be a face name. */
2635 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2636 if (!ok
&& err_msgs
)
2637 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2644 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2645 Sinternal_make_lisp_face
, 1, 2, 0,
2646 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2647 If FACE was not known as a face before, create a new one.
2648 If optional argument FRAME is specified, make a frame-local face
2649 for that frame. Otherwise operate on the global face definition.
2650 Value is a vector of face attributes. */)
2651 (Lisp_Object face
, Lisp_Object frame
)
2653 Lisp_Object global_lface
, lface
;
2657 CHECK_SYMBOL (face
);
2658 global_lface
= lface_from_face_name (NULL
, face
, 0);
2662 CHECK_LIVE_FRAME (frame
);
2664 lface
= lface_from_face_name (f
, face
, 0);
2667 f
= NULL
, lface
= Qnil
;
2669 /* Add a global definition if there is none. */
2670 if (NILP (global_lface
))
2672 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2674 ASET (global_lface
, 0, Qface
);
2675 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2676 Vface_new_frame_defaults
);
2678 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2679 face id to Lisp face is given by the vector lface_id_to_name.
2680 The mapping from Lisp face to Lisp face id is given by the
2681 property `face' of the Lisp face name. */
2682 if (next_lface_id
== lface_id_to_name_size
)
2684 int new_size
= max (50, 2 * lface_id_to_name_size
);
2685 int sz
= new_size
* sizeof *lface_id_to_name
;
2686 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2687 lface_id_to_name_size
= new_size
;
2690 lface_id_to_name
[next_lface_id
] = face
;
2691 Fput (face
, Qface
, make_number (next_lface_id
));
2695 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2696 ASET (global_lface
, i
, Qunspecified
);
2698 /* Add a frame-local definition. */
2703 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2705 ASET (lface
, 0, Qface
);
2706 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2709 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2710 ASET (lface
, i
, Qunspecified
);
2713 lface
= global_lface
;
2715 /* Changing a named face means that all realized faces depending on
2716 that face are invalid. Since we cannot tell which realized faces
2717 depend on the face, make sure they are all removed. This is done
2718 by incrementing face_change_count. The next call to
2719 init_iterator will then free realized faces. */
2720 if (NILP (Fget (face
, Qface_no_inherit
)))
2722 ++face_change_count
;
2723 ++windows_or_buffers_changed
;
2726 xassert (LFACEP (lface
));
2727 check_lface (lface
);
2732 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2733 Sinternal_lisp_face_p
, 1, 2, 0,
2734 doc
: /* Return non-nil if FACE names a face.
2735 FACE should be a symbol or string.
2736 If optional second argument FRAME is non-nil, check for the
2737 existence of a frame-local face with name FACE on that frame.
2738 Otherwise check for the existence of a global face. */)
2739 (Lisp_Object face
, Lisp_Object frame
)
2743 face
= resolve_face_name (face
, 1);
2747 CHECK_LIVE_FRAME (frame
);
2748 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2751 lface
= lface_from_face_name (NULL
, face
, 0);
2757 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2758 Sinternal_copy_lisp_face
, 4, 4, 0,
2759 doc
: /* Copy face FROM to TO.
2760 If FRAME is t, copy the global face definition of FROM.
2761 Otherwise, copy the frame-local definition of FROM on FRAME.
2762 If NEW-FRAME is a frame, copy that data into the frame-local
2763 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2764 FRAME controls where the data is copied to.
2766 The value is TO. */)
2767 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2769 Lisp_Object lface
, copy
;
2771 CHECK_SYMBOL (from
);
2776 /* Copy global definition of FROM. We don't make copies of
2777 strings etc. because 20.2 didn't do it either. */
2778 lface
= lface_from_face_name (NULL
, from
, 1);
2779 copy
= Finternal_make_lisp_face (to
, Qnil
);
2783 /* Copy frame-local definition of FROM. */
2784 if (NILP (new_frame
))
2786 CHECK_LIVE_FRAME (frame
);
2787 CHECK_LIVE_FRAME (new_frame
);
2788 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2789 copy
= Finternal_make_lisp_face (to
, new_frame
);
2792 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2793 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2795 /* Changing a named face means that all realized faces depending on
2796 that face are invalid. Since we cannot tell which realized faces
2797 depend on the face, make sure they are all removed. This is done
2798 by incrementing face_change_count. The next call to
2799 init_iterator will then free realized faces. */
2800 if (NILP (Fget (to
, Qface_no_inherit
)))
2802 ++face_change_count
;
2803 ++windows_or_buffers_changed
;
2810 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2811 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2812 doc
: /* Set attribute ATTR of FACE to VALUE.
2813 FRAME being a frame means change the face on that frame.
2814 FRAME nil means change the face of the selected frame.
2815 FRAME t means change the default for new frames.
2816 FRAME 0 means change the face on all frames, and change the default
2818 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2821 Lisp_Object old_value
= Qnil
;
2822 /* Set one of enum font_property_index (> 0) if ATTR is one of
2823 font-related attributes other than QCfont and QCfontset. */
2824 enum font_property_index prop_index
= 0;
2826 CHECK_SYMBOL (face
);
2827 CHECK_SYMBOL (attr
);
2829 face
= resolve_face_name (face
, 1);
2831 /* If FRAME is 0, change face on all frames, and change the
2832 default for new frames. */
2833 if (INTEGERP (frame
) && XINT (frame
) == 0)
2836 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2837 FOR_EACH_FRAME (tail
, frame
)
2838 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2842 /* Set lface to the Lisp attribute vector of FACE. */
2845 lface
= lface_from_face_name (NULL
, face
, 1);
2847 /* When updating face-new-frame-defaults, we put :ignore-defface
2848 where the caller wants `unspecified'. This forces the frame
2849 defaults to ignore the defface value. Otherwise, the defface
2850 will take effect, which is generally not what is intended.
2851 The value of that attribute will be inherited from some other
2852 face during face merging. See internal_merge_in_global_face. */
2853 if (UNSPECIFIEDP (value
))
2854 value
= Qignore_defface
;
2859 frame
= selected_frame
;
2861 CHECK_LIVE_FRAME (frame
);
2862 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2864 /* If a frame-local face doesn't exist yet, create one. */
2866 lface
= Finternal_make_lisp_face (face
, frame
);
2869 if (EQ (attr
, QCfamily
))
2871 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2873 CHECK_STRING (value
);
2874 if (SCHARS (value
) == 0)
2875 signal_error ("Invalid face family", value
);
2877 old_value
= LFACE_FAMILY (lface
);
2878 LFACE_FAMILY (lface
) = value
;
2879 prop_index
= FONT_FAMILY_INDEX
;
2881 else if (EQ (attr
, QCfoundry
))
2883 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2885 CHECK_STRING (value
);
2886 if (SCHARS (value
) == 0)
2887 signal_error ("Invalid face foundry", value
);
2889 old_value
= LFACE_FOUNDRY (lface
);
2890 LFACE_FOUNDRY (lface
) = value
;
2891 prop_index
= FONT_FOUNDRY_INDEX
;
2893 else if (EQ (attr
, QCheight
))
2895 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2897 if (EQ (face
, Qdefault
))
2899 /* The default face must have an absolute size. */
2900 if (!INTEGERP (value
) || XINT (value
) <= 0)
2901 signal_error ("Invalid default face height", value
);
2905 /* For non-default faces, do a test merge with a random
2906 height to see if VALUE's ok. */
2907 Lisp_Object test
= merge_face_heights (value
,
2910 if (!INTEGERP (test
) || XINT (test
) <= 0)
2911 signal_error ("Invalid face height", value
);
2915 old_value
= LFACE_HEIGHT (lface
);
2916 LFACE_HEIGHT (lface
) = value
;
2917 prop_index
= FONT_SIZE_INDEX
;
2919 else if (EQ (attr
, QCweight
))
2921 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2923 CHECK_SYMBOL (value
);
2924 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2925 signal_error ("Invalid face weight", value
);
2927 old_value
= LFACE_WEIGHT (lface
);
2928 LFACE_WEIGHT (lface
) = value
;
2929 prop_index
= FONT_WEIGHT_INDEX
;
2931 else if (EQ (attr
, QCslant
))
2933 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2935 CHECK_SYMBOL (value
);
2936 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2937 signal_error ("Invalid face slant", value
);
2939 old_value
= LFACE_SLANT (lface
);
2940 LFACE_SLANT (lface
) = value
;
2941 prop_index
= FONT_SLANT_INDEX
;
2943 else if (EQ (attr
, QCunderline
))
2945 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2946 if ((SYMBOLP (value
)
2948 && !EQ (value
, Qnil
))
2949 /* Underline color. */
2951 && SCHARS (value
) == 0))
2952 signal_error ("Invalid face underline", value
);
2954 old_value
= LFACE_UNDERLINE (lface
);
2955 LFACE_UNDERLINE (lface
) = value
;
2957 else if (EQ (attr
, QCoverline
))
2959 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2960 if ((SYMBOLP (value
)
2962 && !EQ (value
, Qnil
))
2963 /* Overline color. */
2965 && SCHARS (value
) == 0))
2966 signal_error ("Invalid face overline", value
);
2968 old_value
= LFACE_OVERLINE (lface
);
2969 LFACE_OVERLINE (lface
) = value
;
2971 else if (EQ (attr
, QCstrike_through
))
2973 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2974 if ((SYMBOLP (value
)
2976 && !EQ (value
, Qnil
))
2977 /* Strike-through color. */
2979 && SCHARS (value
) == 0))
2980 signal_error ("Invalid face strike-through", value
);
2982 old_value
= LFACE_STRIKE_THROUGH (lface
);
2983 LFACE_STRIKE_THROUGH (lface
) = value
;
2985 else if (EQ (attr
, QCbox
))
2989 /* Allow t meaning a simple box of width 1 in foreground color
2992 value
= make_number (1);
2994 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2996 else if (NILP (value
))
2998 else if (INTEGERP (value
))
2999 valid_p
= XINT (value
) != 0;
3000 else if (STRINGP (value
))
3001 valid_p
= SCHARS (value
) > 0;
3002 else if (CONSP (value
))
3018 if (EQ (k
, QCline_width
))
3020 if (!INTEGERP (v
) || XINT (v
) == 0)
3023 else if (EQ (k
, QCcolor
))
3025 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3028 else if (EQ (k
, QCstyle
))
3030 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3037 valid_p
= NILP (tem
);
3043 signal_error ("Invalid face box", value
);
3045 old_value
= LFACE_BOX (lface
);
3046 LFACE_BOX (lface
) = value
;
3048 else if (EQ (attr
, QCinverse_video
)
3049 || EQ (attr
, QCreverse_video
))
3051 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3053 CHECK_SYMBOL (value
);
3054 if (!EQ (value
, Qt
) && !NILP (value
))
3055 signal_error ("Invalid inverse-video face attribute value", value
);
3057 old_value
= LFACE_INVERSE (lface
);
3058 LFACE_INVERSE (lface
) = value
;
3060 else if (EQ (attr
, QCforeground
))
3062 /* Compatibility with 20.x. */
3064 value
= Qunspecified
;
3065 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3067 /* Don't check for valid color names here because it depends
3068 on the frame (display) whether the color will be valid
3069 when the face is realized. */
3070 CHECK_STRING (value
);
3071 if (SCHARS (value
) == 0)
3072 signal_error ("Empty foreground color value", value
);
3074 old_value
= LFACE_FOREGROUND (lface
);
3075 LFACE_FOREGROUND (lface
) = value
;
3077 else if (EQ (attr
, QCbackground
))
3079 /* Compatibility with 20.x. */
3081 value
= Qunspecified
;
3082 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3084 /* Don't check for valid color names here because it depends
3085 on the frame (display) whether the color will be valid
3086 when the face is realized. */
3087 CHECK_STRING (value
);
3088 if (SCHARS (value
) == 0)
3089 signal_error ("Empty background color value", value
);
3091 old_value
= LFACE_BACKGROUND (lface
);
3092 LFACE_BACKGROUND (lface
) = value
;
3094 else if (EQ (attr
, QCstipple
))
3096 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3097 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3099 && NILP (Fbitmap_spec_p (value
)))
3100 signal_error ("Invalid stipple attribute", value
);
3101 old_value
= LFACE_STIPPLE (lface
);
3102 LFACE_STIPPLE (lface
) = value
;
3103 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3105 else if (EQ (attr
, QCwidth
))
3107 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3109 CHECK_SYMBOL (value
);
3110 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3111 signal_error ("Invalid face width", value
);
3113 old_value
= LFACE_SWIDTH (lface
);
3114 LFACE_SWIDTH (lface
) = value
;
3115 prop_index
= FONT_WIDTH_INDEX
;
3117 else if (EQ (attr
, QCfont
))
3119 #ifdef HAVE_WINDOW_SYSTEM
3120 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3122 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3126 old_value
= LFACE_FONT (lface
);
3127 if (! FONTP (value
))
3129 if (STRINGP (value
))
3131 Lisp_Object name
= value
;
3132 int fontset
= fs_query_fontset (name
, 0);
3135 name
= fontset_ascii (fontset
);
3136 value
= font_spec_from_name (name
);
3138 signal_error ("Invalid font name", name
);
3141 signal_error ("Invalid font or font-spec", value
);
3144 f
= XFRAME (selected_frame
);
3147 if (! FONT_OBJECT_P (value
))
3149 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3150 Lisp_Object font_object
;
3152 font_object
= font_load_for_lface (f
, attrs
, value
);
3153 if (NILP (font_object
))
3154 signal_error ("Font not available", value
);
3155 value
= font_object
;
3157 set_lface_from_font (f
, lface
, value
, 1);
3160 LFACE_FONT (lface
) = value
;
3162 #endif /* HAVE_WINDOW_SYSTEM */
3164 else if (EQ (attr
, QCfontset
))
3166 #ifdef HAVE_WINDOW_SYSTEM
3167 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3171 old_value
= LFACE_FONTSET (lface
);
3172 tmp
= Fquery_fontset (value
, Qnil
);
3174 signal_error ("Invalid fontset name", value
);
3175 LFACE_FONTSET (lface
) = value
= tmp
;
3177 #endif /* HAVE_WINDOW_SYSTEM */
3179 else if (EQ (attr
, QCinherit
))
3182 if (SYMBOLP (value
))
3185 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3186 if (!SYMBOLP (XCAR (tail
)))
3189 LFACE_INHERIT (lface
) = value
;
3191 signal_error ("Invalid face inheritance", value
);
3193 else if (EQ (attr
, QCbold
))
3195 old_value
= LFACE_WEIGHT (lface
);
3196 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3197 prop_index
= FONT_WEIGHT_INDEX
;
3199 else if (EQ (attr
, QCitalic
))
3202 old_value
= LFACE_SLANT (lface
);
3203 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3204 prop_index
= FONT_SLANT_INDEX
;
3207 signal_error ("Invalid face attribute name", attr
);
3211 /* If a font-related attribute other than QCfont and QCfontset
3212 is specified, and if the original QCfont attribute has a font
3213 (font-spec or font-object), set the corresponding property in
3214 the font to nil so that the font selector doesn't think that
3215 the attribute is mandatory. Also, clear the average
3217 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3220 /* Changing a named face means that all realized faces depending on
3221 that face are invalid. Since we cannot tell which realized faces
3222 depend on the face, make sure they are all removed. This is done
3223 by incrementing face_change_count. The next call to
3224 init_iterator will then free realized faces. */
3226 && NILP (Fget (face
, Qface_no_inherit
))
3227 && NILP (Fequal (old_value
, value
)))
3229 ++face_change_count
;
3230 ++windows_or_buffers_changed
;
3233 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3234 && NILP (Fequal (old_value
, value
)))
3240 if (EQ (face
, Qdefault
))
3242 #ifdef HAVE_WINDOW_SYSTEM
3243 /* Changed font-related attributes of the `default' face are
3244 reflected in changed `font' frame parameters. */
3246 && (prop_index
|| EQ (attr
, QCfont
))
3247 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3248 set_font_frame_param (frame
, lface
);
3250 #endif /* HAVE_WINDOW_SYSTEM */
3252 if (EQ (attr
, QCforeground
))
3253 param
= Qforeground_color
;
3254 else if (EQ (attr
, QCbackground
))
3255 param
= Qbackground_color
;
3257 #ifdef HAVE_WINDOW_SYSTEM
3259 else if (EQ (face
, Qscroll_bar
))
3261 /* Changing the colors of `scroll-bar' sets frame parameters
3262 `scroll-bar-foreground' and `scroll-bar-background'. */
3263 if (EQ (attr
, QCforeground
))
3264 param
= Qscroll_bar_foreground
;
3265 else if (EQ (attr
, QCbackground
))
3266 param
= Qscroll_bar_background
;
3268 #endif /* not WINDOWSNT */
3269 else if (EQ (face
, Qborder
))
3271 /* Changing background color of `border' sets frame parameter
3273 if (EQ (attr
, QCbackground
))
3274 param
= Qborder_color
;
3276 else if (EQ (face
, Qcursor
))
3278 /* Changing background color of `cursor' sets frame parameter
3280 if (EQ (attr
, QCbackground
))
3281 param
= Qcursor_color
;
3283 else if (EQ (face
, Qmouse
))
3285 /* Changing background color of `mouse' sets frame parameter
3287 if (EQ (attr
, QCbackground
))
3288 param
= Qmouse_color
;
3290 #endif /* HAVE_WINDOW_SYSTEM */
3291 else if (EQ (face
, Qmenu
))
3293 /* Indicate that we have to update the menu bar when
3294 realizing faces on FRAME. FRAME t change the
3295 default for new frames. We do this by setting
3296 setting the flag in new face caches */
3299 struct frame
*f
= XFRAME (frame
);
3300 if (FRAME_FACE_CACHE (f
) == NULL
)
3301 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3302 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3305 menu_face_changed_default
= 1;
3311 /* Update `default-frame-alist', which is used for new frames. */
3313 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3316 /* Update the current frame's parameters. */
3319 cons
= XCAR (Vparam_value_alist
);
3320 XSETCAR (cons
, param
);
3321 XSETCDR (cons
, value
);
3322 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3331 /* Update the corresponding face when frame parameter PARAM on frame F
3332 has been assigned the value NEW_VALUE. */
3335 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
, Lisp_Object new_value
)
3337 Lisp_Object face
= Qnil
;
3340 /* If there are no faces yet, give up. This is the case when called
3341 from Fx_create_frame, and we do the necessary things later in
3342 face-set-after-frame-defaults. */
3343 if (NILP (f
->face_alist
))
3346 if (EQ (param
, Qforeground_color
))
3349 lface
= lface_from_face_name (f
, face
, 1);
3350 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3351 ? new_value
: Qunspecified
);
3352 realize_basic_faces (f
);
3354 else if (EQ (param
, Qbackground_color
))
3358 /* Changing the background color might change the background
3359 mode, so that we have to load new defface specs.
3360 Call frame-update-face-colors to do that. */
3361 XSETFRAME (frame
, f
);
3362 call1 (Qframe_set_background_mode
, frame
);
3365 lface
= lface_from_face_name (f
, face
, 1);
3366 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3367 ? new_value
: Qunspecified
);
3368 realize_basic_faces (f
);
3370 #ifdef HAVE_WINDOW_SYSTEM
3371 else if (EQ (param
, Qborder_color
))
3374 lface
= lface_from_face_name (f
, face
, 1);
3375 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3376 ? new_value
: Qunspecified
);
3378 else if (EQ (param
, Qcursor_color
))
3381 lface
= lface_from_face_name (f
, face
, 1);
3382 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3383 ? new_value
: Qunspecified
);
3385 else if (EQ (param
, Qmouse_color
))
3388 lface
= lface_from_face_name (f
, face
, 1);
3389 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3390 ? new_value
: Qunspecified
);
3394 /* Changing a named face means that all realized faces depending on
3395 that face are invalid. Since we cannot tell which realized faces
3396 depend on the face, make sure they are all removed. This is done
3397 by incrementing face_change_count. The next call to
3398 init_iterator will then free realized faces. */
3400 && NILP (Fget (face
, Qface_no_inherit
)))
3402 ++face_change_count
;
3403 ++windows_or_buffers_changed
;
3408 #ifdef HAVE_WINDOW_SYSTEM
3410 /* Set the `font' frame parameter of FRAME determined from the
3411 font-object set in `default' face attributes LFACE. */
3414 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3416 struct frame
*f
= XFRAME (frame
);
3419 if (FRAME_WINDOW_P (f
)
3420 /* Don't do anything if the font is `unspecified'. This can
3421 happen during frame creation. */
3422 && (font
= LFACE_FONT (lface
),
3423 ! UNSPECIFIEDP (font
)))
3425 if (FONT_SPEC_P (font
))
3427 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3430 LFACE_FONT (lface
) = font
;
3432 f
->default_face_done_p
= 0;
3433 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3438 /* Get the value of X resource RESOURCE, class CLASS for the display
3439 of frame FRAME. This is here because ordinary `x-get-resource'
3440 doesn't take a frame argument. */
3442 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3443 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3444 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3446 Lisp_Object value
= Qnil
;
3447 CHECK_STRING (resource
);
3448 CHECK_STRING (class);
3449 CHECK_LIVE_FRAME (frame
);
3451 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3452 resource
, class, Qnil
, Qnil
);
3458 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3459 If VALUE is "on" or "true", return t. If VALUE is "off" or
3460 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3461 error; if SIGNAL_P is zero, return 0. */
3464 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3466 Lisp_Object result
= make_number (0);
3468 xassert (STRINGP (value
));
3470 if (xstrcasecmp (SDATA (value
), "on") == 0
3471 || xstrcasecmp (SDATA (value
), "true") == 0)
3473 else if (xstrcasecmp (SDATA (value
), "off") == 0
3474 || xstrcasecmp (SDATA (value
), "false") == 0)
3476 else if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3477 result
= Qunspecified
;
3479 signal_error ("Invalid face attribute value from X resource", value
);
3485 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3486 Finternal_set_lisp_face_attribute_from_resource
,
3487 Sinternal_set_lisp_face_attribute_from_resource
,
3488 3, 4, 0, doc
: /* */)
3489 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3491 CHECK_SYMBOL (face
);
3492 CHECK_SYMBOL (attr
);
3493 CHECK_STRING (value
);
3495 if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3496 value
= Qunspecified
;
3497 else if (EQ (attr
, QCheight
))
3499 value
= Fstring_to_number (value
, make_number (10));
3500 if (XINT (value
) <= 0)
3501 signal_error ("Invalid face height from X resource", value
);
3503 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3504 value
= face_boolean_x_resource_value (value
, 1);
3505 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3506 value
= intern (SDATA (value
));
3507 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3508 value
= face_boolean_x_resource_value (value
, 1);
3509 else if (EQ (attr
, QCunderline
)
3510 || EQ (attr
, QCoverline
)
3511 || EQ (attr
, QCstrike_through
))
3513 Lisp_Object boolean_value
;
3515 /* If the result of face_boolean_x_resource_value is t or nil,
3516 VALUE does NOT specify a color. */
3517 boolean_value
= face_boolean_x_resource_value (value
, 0);
3518 if (SYMBOLP (boolean_value
))
3519 value
= boolean_value
;
3521 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3522 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3524 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3527 #endif /* HAVE_WINDOW_SYSTEM */
3530 /***********************************************************************
3532 ***********************************************************************/
3534 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3536 /* Make menus on frame F appear as specified by the `menu' face. */
3539 x_update_menu_appearance (struct frame
*f
)
3541 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3545 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3549 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3550 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3551 const char *myname
= SDATA (Vx_resource_name
);
3554 const char *popup_path
= "popup_menu";
3556 const char *popup_path
= "menu.popup";
3559 if (STRINGP (LFACE_FOREGROUND (lface
)))
3561 sprintf (line
, "%s.%s*foreground: %s",
3563 SDATA (LFACE_FOREGROUND (lface
)));
3564 XrmPutLineResource (&rdb
, line
);
3565 sprintf (line
, "%s.pane.menubar*foreground: %s",
3566 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3567 XrmPutLineResource (&rdb
, line
);
3571 if (STRINGP (LFACE_BACKGROUND (lface
)))
3573 sprintf (line
, "%s.%s*background: %s",
3575 SDATA (LFACE_BACKGROUND (lface
)));
3576 XrmPutLineResource (&rdb
, line
);
3577 sprintf (line
, "%s.pane.menubar*background: %s",
3578 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3579 XrmPutLineResource (&rdb
, line
);
3584 /* On Solaris 5.8, it's been reported that the `menu' face
3585 can be unspecified here, during startup. Why this
3586 happens remains unknown. -- cyd */
3587 && FONTP (LFACE_FONT (lface
))
3588 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3589 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3590 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3591 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3592 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3593 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3595 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3597 const char *suffix
= "List";
3600 #if defined HAVE_X_I18N
3602 const char *suffix
= "Set";
3604 const char *suffix
= "";
3611 #if defined HAVE_X_I18N
3612 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3614 char *fontsetname
= SSDATA (xlfd
);
3616 sprintf (line
, "%s.pane.menubar*font%s: %s",
3617 myname
, suffix
, fontsetname
);
3618 XrmPutLineResource (&rdb
, line
);
3619 sprintf (line
, "%s.%s*font%s: %s",
3620 myname
, popup_path
, suffix
, fontsetname
);
3621 XrmPutLineResource (&rdb
, line
);
3623 if (fontsetname
!= SSDATA (xlfd
))
3624 xfree (fontsetname
);
3628 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3629 free_frame_menubar (f
);
3633 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3636 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3637 Sface_attribute_relative_p
,
3639 doc
: /* Check whether a face attribute value is relative.
3640 Specifically, this function returns t if the attribute ATTRIBUTE
3641 with the value VALUE is relative.
3643 A relative value is one that doesn't entirely override whatever is
3644 inherited from another face. For most possible attributes,
3645 the only relative value that users see is `unspecified'.
3646 However, for :height, floating point values are also relative. */)
3647 (Lisp_Object attribute
, Lisp_Object value
)
3649 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3651 else if (EQ (attribute
, QCheight
))
3652 return INTEGERP (value
) ? Qnil
: Qt
;
3657 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3659 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3660 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3661 the result will be absolute, otherwise it will be relative. */)
3662 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3664 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3666 else if (EQ (attribute
, QCheight
))
3667 return merge_face_heights (value1
, value2
, value1
);
3673 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3674 Sinternal_get_lisp_face_attribute
,
3676 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3677 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3678 face attribute name, signal an error.
3679 If the optional argument FRAME is given, report on face SYMBOL in that
3680 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3681 frames). If FRAME is omitted or nil, use the selected frame. */)
3682 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3684 Lisp_Object lface
, value
= Qnil
;
3686 CHECK_SYMBOL (symbol
);
3687 CHECK_SYMBOL (keyword
);
3690 lface
= lface_from_face_name (NULL
, symbol
, 1);
3694 frame
= selected_frame
;
3695 CHECK_LIVE_FRAME (frame
);
3696 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3699 if (EQ (keyword
, QCfamily
))
3700 value
= LFACE_FAMILY (lface
);
3701 else if (EQ (keyword
, QCfoundry
))
3702 value
= LFACE_FOUNDRY (lface
);
3703 else if (EQ (keyword
, QCheight
))
3704 value
= LFACE_HEIGHT (lface
);
3705 else if (EQ (keyword
, QCweight
))
3706 value
= LFACE_WEIGHT (lface
);
3707 else if (EQ (keyword
, QCslant
))
3708 value
= LFACE_SLANT (lface
);
3709 else if (EQ (keyword
, QCunderline
))
3710 value
= LFACE_UNDERLINE (lface
);
3711 else if (EQ (keyword
, QCoverline
))
3712 value
= LFACE_OVERLINE (lface
);
3713 else if (EQ (keyword
, QCstrike_through
))
3714 value
= LFACE_STRIKE_THROUGH (lface
);
3715 else if (EQ (keyword
, QCbox
))
3716 value
= LFACE_BOX (lface
);
3717 else if (EQ (keyword
, QCinverse_video
)
3718 || EQ (keyword
, QCreverse_video
))
3719 value
= LFACE_INVERSE (lface
);
3720 else if (EQ (keyword
, QCforeground
))
3721 value
= LFACE_FOREGROUND (lface
);
3722 else if (EQ (keyword
, QCbackground
))
3723 value
= LFACE_BACKGROUND (lface
);
3724 else if (EQ (keyword
, QCstipple
))
3725 value
= LFACE_STIPPLE (lface
);
3726 else if (EQ (keyword
, QCwidth
))
3727 value
= LFACE_SWIDTH (lface
);
3728 else if (EQ (keyword
, QCinherit
))
3729 value
= LFACE_INHERIT (lface
);
3730 else if (EQ (keyword
, QCfont
))
3731 value
= LFACE_FONT (lface
);
3732 else if (EQ (keyword
, QCfontset
))
3733 value
= LFACE_FONTSET (lface
);
3735 signal_error ("Invalid face attribute name", keyword
);
3737 if (IGNORE_DEFFACE_P (value
))
3738 return Qunspecified
;
3744 DEFUN ("internal-lisp-face-attribute-values",
3745 Finternal_lisp_face_attribute_values
,
3746 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3747 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3748 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3751 Lisp_Object result
= Qnil
;
3753 CHECK_SYMBOL (attr
);
3755 if (EQ (attr
, QCunderline
))
3756 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3757 else if (EQ (attr
, QCoverline
))
3758 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3759 else if (EQ (attr
, QCstrike_through
))
3760 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3761 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3762 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3768 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3769 Sinternal_merge_in_global_face
, 2, 2, 0,
3770 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3771 Default face attributes override any local face attributes. */)
3772 (Lisp_Object face
, Lisp_Object frame
)
3775 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3776 struct frame
*f
= XFRAME (frame
);
3778 CHECK_LIVE_FRAME (frame
);
3779 global_lface
= lface_from_face_name (NULL
, face
, 1);
3780 local_lface
= lface_from_face_name (f
, face
, 0);
3781 if (NILP (local_lface
))
3782 local_lface
= Finternal_make_lisp_face (face
, frame
);
3784 /* Make every specified global attribute override the local one.
3785 BEWARE!! This is only used from `face-set-after-frame-default' where
3786 the local frame is defined from default specs in `face-defface-spec'
3787 and those should be overridden by global settings. Hence the strange
3788 "global before local" priority. */
3789 lvec
= XVECTOR (local_lface
)->contents
;
3790 gvec
= XVECTOR (global_lface
)->contents
;
3791 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3792 if (IGNORE_DEFFACE_P (gvec
[i
]))
3793 lvec
[i
] = Qunspecified
;
3794 else if (! UNSPECIFIEDP (gvec
[i
]))
3797 /* If the default face was changed, update the face cache and the
3798 `font' frame parameter. */
3799 if (EQ (face
, Qdefault
))
3801 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3802 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3803 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3805 /* This can be NULL (e.g., in batch mode). */
3808 /* Ensure that the face vector is fully specified by merging
3809 the previously-cached vector. */
3810 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3811 merge_face_vectors (f
, lvec
, attrs
, 0);
3812 memcpy (lvec
, attrs
, sizeof attrs
);
3813 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3815 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3816 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3817 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3818 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3819 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3820 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3821 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3824 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3825 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3835 /* The following function is implemented for compatibility with 20.2.
3836 The function is used in x-resolve-fonts when it is asked to
3837 return fonts with the same size as the font of a face. This is
3838 done in fontset.el. */
3840 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3841 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3842 The font name is, by default, for ASCII characters.
3843 If the optional argument FRAME is given, report on face FACE in that frame.
3844 If FRAME is t, report on the defaults for face FACE (for new frames).
3845 The font default for a face is either nil, or a list
3846 of the form (bold), (italic) or (bold italic).
3847 If FRAME is omitted or nil, use the selected frame. And, in this case,
3848 if the optional third argument CHARACTER is given,
3849 return the font name used for CHARACTER. */)
3850 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3854 Lisp_Object result
= Qnil
;
3855 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3857 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3858 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3859 result
= Fcons (Qbold
, result
);
3861 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3862 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3863 result
= Fcons (Qitalic
, result
);
3869 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3870 int face_id
= lookup_named_face (f
, face
, 1);
3871 struct face
*face
= FACE_FROM_ID (f
, face_id
);
3875 #ifdef HAVE_WINDOW_SYSTEM
3876 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3878 CHECK_CHARACTER (character
);
3879 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
3880 face
= FACE_FROM_ID (f
, face_id
);
3883 ? face
->font
->props
[FONT_NAME_INDEX
]
3885 #else /* !HAVE_WINDOW_SYSTEM */
3886 return build_string (FRAME_MSDOS_P (f
)
3888 : FRAME_W32_P (f
) ? "w32term"
3895 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3896 all attributes are `equal'. Tries to be fast because this function
3897 is called quite often. */
3900 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3902 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3903 and the other is specified. */
3904 if (XTYPE (v1
) != XTYPE (v2
))
3913 if (SBYTES (v1
) != SBYTES (v2
))
3916 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3923 return !NILP (Fequal (v1
, v2
));
3928 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3929 all attributes are `equal'. Tries to be fast because this function
3930 is called quite often. */
3933 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3937 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3938 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3944 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3945 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3946 doc
: /* True if FACE1 and FACE2 are equal.
3947 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3948 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3949 If FRAME is omitted or nil, use the selected frame. */)
3950 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3954 Lisp_Object lface1
, lface2
;
3959 /* Don't use check_x_frame here because this function is called
3960 before X frames exist. At that time, if FRAME is nil,
3961 selected_frame will be used which is the frame dumped with
3962 Emacs. That frame is not an X frame. */
3963 f
= frame_or_selected_frame (frame
, 2);
3965 lface1
= lface_from_face_name (f
, face1
, 1);
3966 lface2
= lface_from_face_name (f
, face2
, 1);
3967 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3968 XVECTOR (lface2
)->contents
);
3969 return equal_p
? Qt
: Qnil
;
3973 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3974 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3975 doc
: /* True if FACE has no attribute specified.
3976 If the optional argument FRAME is given, report on face FACE in that frame.
3977 If FRAME is t, report on the defaults for face FACE (for new frames).
3978 If FRAME is omitted or nil, use the selected frame. */)
3979 (Lisp_Object face
, Lisp_Object frame
)
3986 frame
= selected_frame
;
3987 CHECK_LIVE_FRAME (frame
);
3991 lface
= lface_from_face_name (NULL
, face
, 1);
3993 lface
= lface_from_face_name (f
, face
, 1);
3995 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3996 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3999 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4003 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4005 doc
: /* Return an alist of frame-local faces defined on FRAME.
4006 For internal use only. */)
4009 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4010 return f
->face_alist
;
4014 /* Return a hash code for Lisp string STRING with case ignored. Used
4015 below in computing a hash value for a Lisp face. */
4017 static INLINE
unsigned
4018 hash_string_case_insensitive (Lisp_Object string
)
4020 const unsigned char *s
;
4022 xassert (STRINGP (string
));
4023 for (s
= SDATA (string
); *s
; ++s
)
4024 hash
= (hash
<< 1) ^ tolower (*s
);
4029 /* Return a hash code for face attribute vector V. */
4031 static INLINE
unsigned
4032 lface_hash (Lisp_Object
*v
)
4034 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4035 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4036 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4037 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4038 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4039 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4040 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4041 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4045 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4046 considering charsets/registries). They do if they specify the same
4047 family, point size, weight, width, slant, and font. Both
4048 LFACE1 and LFACE2 must be fully-specified. */
4051 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4053 xassert (lface_fully_specified_p (lface1
)
4054 && lface_fully_specified_p (lface2
));
4055 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4056 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4057 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4058 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4059 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4060 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4061 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4062 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4063 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4064 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4065 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4066 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4067 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4068 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4074 /***********************************************************************
4076 ***********************************************************************/
4078 /* Allocate and return a new realized face for Lisp face attribute
4081 static struct face
*
4082 make_realized_face (Lisp_Object
*attr
)
4084 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4085 memset (face
, 0, sizeof *face
);
4086 face
->ascii_face
= face
;
4087 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4092 /* Free realized face FACE, including its X resources. FACE may
4096 free_realized_face (struct frame
*f
, struct face
*face
)
4100 #ifdef HAVE_WINDOW_SYSTEM
4101 if (FRAME_WINDOW_P (f
))
4103 /* Free fontset of FACE if it is ASCII face. */
4104 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4105 free_face_fontset (f
, face
);
4110 font_done_for_face (f
, face
);
4111 x_free_gc (f
, face
->gc
);
4116 free_face_colors (f
, face
);
4117 x_destroy_bitmap (f
, face
->stipple
);
4119 #endif /* HAVE_WINDOW_SYSTEM */
4126 /* Prepare face FACE for subsequent display on frame F. This
4127 allocated GCs if they haven't been allocated yet or have been freed
4128 by clearing the face cache. */
4131 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4133 #ifdef HAVE_WINDOW_SYSTEM
4134 xassert (FRAME_WINDOW_P (f
));
4139 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4141 xgcv
.foreground
= face
->foreground
;
4142 xgcv
.background
= face
->background
;
4143 #ifdef HAVE_X_WINDOWS
4144 xgcv
.graphics_exposures
= False
;
4148 #ifdef HAVE_X_WINDOWS
4151 xgcv
.fill_style
= FillOpaqueStippled
;
4152 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4153 mask
|= GCFillStyle
| GCStipple
;
4156 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4158 font_prepare_for_face (f
, face
);
4161 #endif /* HAVE_WINDOW_SYSTEM */
4165 /* Returns the `distance' between the colors X and Y. */
4168 color_distance (XColor
*x
, XColor
*y
)
4170 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4171 Quoting from that paper:
4173 This formula has results that are very close to L*u*v* (with the
4174 modified lightness curve) and, more importantly, it is a more even
4175 algorithm: it does not have a range of colours where it suddenly
4176 gives far from optimal results.
4178 See <http://www.compuphase.com/cmetric.htm> for more info. */
4180 long r
= (x
->red
- y
->red
) >> 8;
4181 long g
= (x
->green
- y
->green
) >> 8;
4182 long b
= (x
->blue
- y
->blue
) >> 8;
4183 long r_mean
= (x
->red
+ y
->red
) >> 9;
4186 (((512 + r_mean
) * r
* r
) >> 8)
4188 + (((767 - r_mean
) * b
* b
) >> 8);
4192 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4193 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4194 COLOR1 and COLOR2 may be either strings containing the color name,
4195 or lists of the form (RED GREEN BLUE).
4196 If FRAME is unspecified or nil, the current frame is used. */)
4197 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4200 XColor cdef1
, cdef2
;
4203 frame
= selected_frame
;
4204 CHECK_LIVE_FRAME (frame
);
4207 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4208 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4209 signal_error ("Invalid color", color1
);
4210 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4211 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4212 signal_error ("Invalid color", color2
);
4214 return make_number (color_distance (&cdef1
, &cdef2
));
4218 /***********************************************************************
4220 ***********************************************************************/
4222 /* Return a new face cache for frame F. */
4224 static struct face_cache
*
4225 make_face_cache (struct frame
*f
)
4227 struct face_cache
*c
;
4230 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4231 memset (c
, 0, sizeof *c
);
4232 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4233 c
->buckets
= (struct face
**) xmalloc (size
);
4234 memset (c
->buckets
, 0, size
);
4236 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4238 c
->menu_face_changed_p
= menu_face_changed_default
;
4243 /* Clear out all graphics contexts for all realized faces, except for
4244 the basic faces. This should be done from time to time just to avoid
4245 keeping too many graphics contexts that are no longer needed. */
4248 clear_face_gcs (struct face_cache
*c
)
4250 if (c
&& FRAME_WINDOW_P (c
->f
))
4252 #ifdef HAVE_WINDOW_SYSTEM
4254 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4256 struct face
*face
= c
->faces_by_id
[i
];
4257 if (face
&& face
->gc
)
4261 font_done_for_face (c
->f
, face
);
4262 x_free_gc (c
->f
, face
->gc
);
4267 #endif /* HAVE_WINDOW_SYSTEM */
4272 /* Free all realized faces in face cache C, including basic faces.
4273 C may be null. If faces are freed, make sure the frame's current
4274 matrix is marked invalid, so that a display caused by an expose
4275 event doesn't try to use faces we destroyed. */
4278 free_realized_faces (struct face_cache
*c
)
4283 struct frame
*f
= c
->f
;
4285 /* We must block input here because we can't process X events
4286 safely while only some faces are freed, or when the frame's
4287 current matrix still references freed faces. */
4290 for (i
= 0; i
< c
->used
; ++i
)
4292 free_realized_face (f
, c
->faces_by_id
[i
]);
4293 c
->faces_by_id
[i
] = NULL
;
4297 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4298 memset (c
->buckets
, 0, size
);
4300 /* Must do a thorough redisplay the next time. Mark current
4301 matrices as invalid because they will reference faces freed
4302 above. This function is also called when a frame is
4303 destroyed. In this case, the root window of F is nil. */
4304 if (WINDOWP (f
->root_window
))
4306 clear_current_matrices (f
);
4307 ++windows_or_buffers_changed
;
4315 /* Free all realized faces that are using FONTSET on frame F. */
4318 free_realized_faces_for_fontset (struct frame
*f
, int fontset
)
4320 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4324 /* We must block input here because we can't process X events safely
4325 while only some faces are freed, or when the frame's current
4326 matrix still references freed faces. */
4329 for (i
= 0; i
< cache
->used
; i
++)
4331 face
= cache
->faces_by_id
[i
];
4333 && face
->fontset
== fontset
)
4335 uncache_face (cache
, face
);
4336 free_realized_face (f
, face
);
4340 /* Must do a thorough redisplay the next time. Mark current
4341 matrices as invalid because they will reference faces freed
4342 above. This function is also called when a frame is destroyed.
4343 In this case, the root window of F is nil. */
4344 if (WINDOWP (f
->root_window
))
4346 clear_current_matrices (f
);
4347 ++windows_or_buffers_changed
;
4354 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4355 This is done after attributes of a named face have been changed,
4356 because we can't tell which realized faces depend on that face. */
4359 free_all_realized_faces (Lisp_Object frame
)
4364 FOR_EACH_FRAME (rest
, frame
)
4365 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4368 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4372 /* Free face cache C and faces in it, including their X resources. */
4375 free_face_cache (struct face_cache
*c
)
4379 free_realized_faces (c
);
4381 xfree (c
->faces_by_id
);
4387 /* Cache realized face FACE in face cache C. HASH is the hash value
4388 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4389 FACE), insert the new face to the beginning of the collision list
4390 of the face hash table of C. Otherwise, add the new face to the
4391 end of the collision list. This way, lookup_face can quickly find
4392 that a requested face is not cached. */
4395 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4397 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4401 if (face
->ascii_face
!= face
)
4403 struct face
*last
= c
->buckets
[i
];
4414 c
->buckets
[i
] = face
;
4415 face
->prev
= face
->next
= NULL
;
4421 face
->next
= c
->buckets
[i
];
4423 face
->next
->prev
= face
;
4424 c
->buckets
[i
] = face
;
4427 /* Find a free slot in C->faces_by_id and use the index of the free
4428 slot as FACE->id. */
4429 for (i
= 0; i
< c
->used
; ++i
)
4430 if (c
->faces_by_id
[i
] == NULL
)
4434 /* Maybe enlarge C->faces_by_id. */
4437 if (c
->used
== c
->size
)
4440 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4441 if (new_size
== c
->size
)
4442 abort (); /* Alternatives? ++kfs */
4443 sz
= new_size
* sizeof *c
->faces_by_id
;
4444 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4451 /* Check that FACE got a unique id. */
4456 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4457 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4463 #endif /* GLYPH_DEBUG */
4465 c
->faces_by_id
[i
] = face
;
4469 /* Remove face FACE from cache C. */
4472 uncache_face (struct face_cache
*c
, struct face
*face
)
4474 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4477 face
->prev
->next
= face
->next
;
4479 c
->buckets
[i
] = face
->next
;
4482 face
->next
->prev
= face
->prev
;
4484 c
->faces_by_id
[face
->id
] = NULL
;
4485 if (face
->id
== c
->used
)
4490 /* Look up a realized face with face attributes ATTR in the face cache
4491 of frame F. The face will be used to display ASCII characters.
4492 Value is the ID of the face found. If no suitable face is found,
4493 realize a new one. */
4496 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4498 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4503 xassert (cache
!= NULL
);
4504 check_lface_attrs (attr
);
4506 /* Look up ATTR in the face cache. */
4507 hash
= lface_hash (attr
);
4508 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4510 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4512 if (face
->ascii_face
!= face
)
4514 /* There's no more ASCII face. */
4518 if (face
->hash
== hash
4519 && lface_equal_p (face
->lface
, attr
))
4523 /* If not found, realize a new face. */
4525 face
= realize_face (cache
, attr
, -1);
4528 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4529 #endif /* GLYPH_DEBUG */
4534 #ifdef HAVE_WINDOW_SYSTEM
4535 /* Look up a realized face that has the same attributes as BASE_FACE
4536 except for the font in the face cache of frame F. If FONT-OBJECT
4537 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4538 the face has no font. Value is the ID of the face found. If no
4539 suitable face is found, realize a new one. */
4542 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4544 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4549 xassert (cache
!= NULL
);
4550 base_face
= base_face
->ascii_face
;
4551 hash
= lface_hash (base_face
->lface
);
4552 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4554 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4556 if (face
->ascii_face
== face
)
4558 if (face
->ascii_face
== base_face
4559 && face
->font
== (NILP (font_object
) ? NULL
4560 : XFONT_OBJECT (font_object
))
4561 && lface_equal_p (face
->lface
, base_face
->lface
))
4565 /* If not found, realize a new face. */
4566 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4569 #endif /* HAVE_WINDOW_SYSTEM */
4571 /* Return the face id of the realized face for named face SYMBOL on
4572 frame F suitable for displaying ASCII characters. Value is -1 if
4573 the face couldn't be determined, which might happen if the default
4574 face isn't realized and cannot be realized. */
4577 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4579 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4580 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4581 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4583 if (default_face
== NULL
)
4585 if (!realize_basic_faces (f
))
4587 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4588 if (default_face
== NULL
)
4589 abort (); /* realize_basic_faces must have set it up */
4592 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4595 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4596 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4598 return lookup_face (f
, attrs
);
4602 /* Return the display face-id of the basic face who's canonical face-id
4603 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4604 basic face has bee remapped via Vface_remapping_alist. This function is
4605 conservative: if something goes wrong, it will simply return FACE_ID
4606 rather than signal an error. */
4609 lookup_basic_face (struct frame
*f
, int face_id
)
4611 Lisp_Object name
, mapping
;
4612 int remapped_face_id
;
4614 if (NILP (Vface_remapping_alist
))
4615 return face_id
; /* Nothing to do. */
4619 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4620 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4621 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4622 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4623 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4624 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4625 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4626 case BORDER_FACE_ID
: name
= Qborder
; break;
4627 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4628 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4629 case MENU_FACE_ID
: name
= Qmenu
; break;
4632 abort (); /* the caller is supposed to pass us a basic face id */
4635 /* Do a quick scan through Vface_remapping_alist, and return immediately
4636 if there is no remapping for face NAME. This is just an optimization
4637 for the very common no-remapping case. */
4638 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4640 return face_id
; /* Give up. */
4642 /* If there is a remapping entry, lookup the face using NAME, which will
4643 handle the remapping too. */
4644 remapped_face_id
= lookup_named_face (f
, name
, 0);
4645 if (remapped_face_id
< 0)
4646 return face_id
; /* Give up. */
4648 return remapped_face_id
;
4652 /* Return the ID of the realized ASCII face of Lisp face with ID
4653 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4656 ascii_face_of_lisp_face (struct frame
*f
, int lface_id
)
4660 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4662 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4663 face_id
= lookup_named_face (f
, face_name
, 1);
4672 /* Return a face for charset ASCII that is like the face with id
4673 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4674 STEPS < 0 means larger. Value is the id of the face. */
4677 smaller_face (struct frame
*f
, int face_id
, int steps
)
4679 #ifdef HAVE_WINDOW_SYSTEM
4681 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4682 int pt
, last_pt
, last_height
;
4685 struct face
*new_face
;
4687 /* If not called for an X frame, just return the original face. */
4688 if (FRAME_TERMCAP_P (f
))
4691 /* Try in increments of 1/2 pt. */
4692 delta
= steps
< 0 ? 5 : -5;
4693 steps
= eabs (steps
);
4695 face
= FACE_FROM_ID (f
, face_id
);
4696 memcpy (attrs
, face
->lface
, sizeof attrs
);
4697 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4698 new_face_id
= face_id
;
4699 last_height
= FONT_HEIGHT (face
->font
);
4703 /* Give up if we cannot find a font within 10pt. */
4704 && eabs (last_pt
- pt
) < 100)
4706 /* Look up a face for a slightly smaller/larger font. */
4708 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4709 new_face_id
= lookup_face (f
, attrs
);
4710 new_face
= FACE_FROM_ID (f
, new_face_id
);
4712 /* If height changes, count that as one step. */
4713 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4714 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4717 last_height
= FONT_HEIGHT (new_face
->font
);
4724 #else /* not HAVE_WINDOW_SYSTEM */
4728 #endif /* not HAVE_WINDOW_SYSTEM */
4732 /* Return a face for charset ASCII that is like the face with id
4733 FACE_ID on frame F, but has height HEIGHT. */
4736 face_with_height (struct frame
*f
, int face_id
, int height
)
4738 #ifdef HAVE_WINDOW_SYSTEM
4740 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4742 if (FRAME_TERMCAP_P (f
)
4746 face
= FACE_FROM_ID (f
, face_id
);
4747 memcpy (attrs
, face
->lface
, sizeof attrs
);
4748 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4749 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4750 face_id
= lookup_face (f
, attrs
);
4751 #endif /* HAVE_WINDOW_SYSTEM */
4757 /* Return the face id of the realized face for named face SYMBOL on
4758 frame F suitable for displaying ASCII characters, and use
4759 attributes of the face FACE_ID for attributes that aren't
4760 completely specified by SYMBOL. This is like lookup_named_face,
4761 except that the default attributes come from FACE_ID, not from the
4762 default face. FACE_ID is assumed to be already realized. */
4765 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
, int signal_p
)
4767 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4768 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4769 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4774 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4777 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4778 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4779 return lookup_face (f
, attrs
);
4782 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4783 Sface_attributes_as_vector
, 1, 1, 0,
4784 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4788 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4790 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4797 /***********************************************************************
4798 Face capability testing
4799 ***********************************************************************/
4802 /* If the distance (as returned by color_distance) between two colors is
4803 less than this, then they are considered the same, for determining
4804 whether a color is supported or not. The range of values is 0-65535. */
4806 #define TTY_SAME_COLOR_THRESHOLD 10000
4808 #ifdef HAVE_WINDOW_SYSTEM
4810 /* Return non-zero if all the face attributes in ATTRS are supported
4811 on the window-system frame F.
4813 The definition of `supported' is somewhat heuristic, but basically means
4814 that a face containing all the attributes in ATTRS, when merged with the
4815 default face for display, can be represented in a way that's
4817 \(1) different in appearance than the default face, and
4818 \(2) `close in spirit' to what the attributes specify, if not exact. */
4821 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4823 Lisp_Object
*def_attrs
= def_face
->lface
;
4825 /* Check that other specified attributes are different that the default
4827 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4828 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4829 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4830 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4831 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4832 def_attrs
[LFACE_INVERSE_INDEX
]))
4833 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4834 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4835 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4836 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4837 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4838 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4839 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4840 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4841 def_attrs
[LFACE_STIPPLE_INDEX
]))
4842 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4843 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4844 def_attrs
[LFACE_OVERLINE_INDEX
]))
4845 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4846 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4847 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4848 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4849 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4850 def_attrs
[LFACE_BOX_INDEX
])))
4853 /* Check font-related attributes, as those are the most commonly
4854 "unsupported" on a window-system (because of missing fonts). */
4855 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4856 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4857 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4858 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4859 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4860 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4864 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4867 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4869 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4871 face_id
= lookup_face (f
, merged_attrs
);
4872 face
= FACE_FROM_ID (f
, face_id
);
4875 error ("Cannot make face");
4877 /* If the font is the same, or no font is found, then not
4879 if (face
->font
== def_face
->font
4882 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4883 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4887 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4888 || face
->font
->driver
->case_sensitive
)
4890 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4891 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4892 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4893 s2
, make_number (0), Qnil
, Qt
), Qt
))
4899 /* Everything checks out, this face is supported. */
4903 #endif /* HAVE_WINDOW_SYSTEM */
4905 /* Return non-zero if all the face attributes in ATTRS are supported
4908 The definition of `supported' is somewhat heuristic, but basically means
4909 that a face containing all the attributes in ATTRS, when merged
4910 with the default face for display, can be represented in a way that's
4912 \(1) different in appearance than the default face, and
4913 \(2) `close in spirit' to what the attributes specify, if not exact.
4915 Point (2) implies that a `:weight black' attribute will be satisfied
4916 by any terminal that can display bold, and a `:foreground "yellow"' as
4917 long as the terminal can display a yellowish color, but `:slant italic'
4918 will _not_ be satisfied by the tty display code's automatic
4919 substitution of a `dim' face for italic. */
4922 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4925 Lisp_Object val
, fg
, bg
;
4926 XColor fg_tty_color
, fg_std_color
;
4927 XColor bg_tty_color
, bg_std_color
;
4928 unsigned test_caps
= 0;
4929 Lisp_Object
*def_attrs
= def_face
->lface
;
4932 /* First check some easy-to-check stuff; ttys support none of the
4933 following attributes, so we can just return false if any are requested
4934 (even if `nominal' values are specified, we should still return false,
4935 as that will be the same value that the default face uses). We
4936 consider :slant unsupportable on ttys, even though the face code
4937 actually `fakes' them using a dim attribute if possible. This is
4938 because the faked result is too different from what the face
4940 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4941 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4942 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4943 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4944 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4945 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4946 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4947 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4948 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
4952 /* Test for terminal `capabilities' (non-color character attributes). */
4954 /* font weight (bold/dim) */
4955 val
= attrs
[LFACE_WEIGHT_INDEX
];
4956 if (!UNSPECIFIEDP (val
)
4957 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4959 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4963 if (def_weight
> 100)
4964 return 0; /* same as default */
4965 test_caps
= TTY_CAP_BOLD
;
4967 else if (weight
< 100)
4969 if (def_weight
< 100)
4970 return 0; /* same as default */
4971 test_caps
= TTY_CAP_DIM
;
4973 else if (def_weight
== 100)
4974 return 0; /* same as default */
4978 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4979 if (!UNSPECIFIEDP (val
))
4982 return 0; /* ttys can't use colored underlines */
4983 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4984 return 0; /* same as default */
4986 test_caps
|= TTY_CAP_UNDERLINE
;
4990 val
= attrs
[LFACE_INVERSE_INDEX
];
4991 if (!UNSPECIFIEDP (val
))
4993 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4994 return 0; /* same as default */
4996 test_caps
|= TTY_CAP_INVERSE
;
5000 /* Color testing. */
5002 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5003 we use them when calling `tty_capable_p' below, even if the face
5004 specifies no colors. */
5005 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5006 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5008 /* Check if foreground color is close enough. */
5009 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5012 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5014 if (face_attr_equal_p (fg
, def_fg
))
5015 return 0; /* same as default */
5016 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5017 return 0; /* not a valid color */
5018 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5019 > TTY_SAME_COLOR_THRESHOLD
)
5020 return 0; /* displayed color is too different */
5022 /* Make sure the color is really different than the default. */
5024 XColor def_fg_color
;
5025 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5026 && (color_distance (&fg_tty_color
, &def_fg_color
)
5027 <= TTY_SAME_COLOR_THRESHOLD
))
5032 /* Check if background color is close enough. */
5033 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5036 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5038 if (face_attr_equal_p (bg
, def_bg
))
5039 return 0; /* same as default */
5040 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5041 return 0; /* not a valid color */
5042 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5043 > TTY_SAME_COLOR_THRESHOLD
)
5044 return 0; /* displayed color is too different */
5046 /* Make sure the color is really different than the default. */
5048 XColor def_bg_color
;
5049 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5050 && (color_distance (&bg_tty_color
, &def_bg_color
)
5051 <= TTY_SAME_COLOR_THRESHOLD
))
5056 /* If both foreground and background are requested, see if the
5057 distance between them is OK. We just check to see if the distance
5058 between the tty's foreground and background is close enough to the
5059 distance between the standard foreground and background. */
5060 if (STRINGP (fg
) && STRINGP (bg
))
5063 = (color_distance (&fg_std_color
, &bg_std_color
)
5064 - color_distance (&fg_tty_color
, &bg_tty_color
));
5065 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5066 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5071 /* See if the capabilities we selected above are supported, with the
5073 if (test_caps
!= 0 &&
5074 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5078 /* Hmmm, everything checks out, this terminal must support this face. */
5083 DEFUN ("display-supports-face-attributes-p",
5084 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5086 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5087 The optional argument DISPLAY can be a display name, a frame, or
5088 nil (meaning the selected frame's display).
5090 The definition of `supported' is somewhat heuristic, but basically means
5091 that a face containing all the attributes in ATTRIBUTES, when merged
5092 with the default face for display, can be represented in a way that's
5094 \(1) different in appearance than the default face, and
5095 \(2) `close in spirit' to what the attributes specify, if not exact.
5097 Point (2) implies that a `:weight black' attribute will be satisfied by
5098 any display that can display bold, and a `:foreground \"yellow\"' as long
5099 as it can display a yellowish color, but `:slant italic' will _not_ be
5100 satisfied by the tty display code's automatic substitution of a `dim'
5101 face for italic. */)
5102 (Lisp_Object attributes
, Lisp_Object display
)
5104 int supports
= 0, i
;
5107 struct face
*def_face
;
5108 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5110 if (noninteractive
|| !initialized
)
5111 /* We may not be able to access low-level face information in batch
5112 mode, or before being dumped, and this function is not going to
5113 be very useful in those cases anyway, so just give up. */
5117 frame
= selected_frame
;
5118 else if (FRAMEP (display
))
5122 /* Find any frame on DISPLAY. */
5123 Lisp_Object fl_tail
;
5126 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5128 frame
= XCAR (fl_tail
);
5129 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5130 XFRAME (frame
)->param_alist
)),
5136 CHECK_LIVE_FRAME (frame
);
5139 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5140 attrs
[i
] = Qunspecified
;
5141 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5143 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5144 if (def_face
== NULL
)
5146 if (! realize_basic_faces (f
))
5147 error ("Cannot realize default face");
5148 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5149 if (def_face
== NULL
)
5150 abort (); /* realize_basic_faces must have set it up */
5153 /* Dispatch to the appropriate handler. */
5154 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5155 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5156 #ifdef HAVE_WINDOW_SYSTEM
5158 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5161 return supports
? Qt
: Qnil
;
5165 /***********************************************************************
5167 ***********************************************************************/
5169 DEFUN ("internal-set-font-selection-order",
5170 Finternal_set_font_selection_order
,
5171 Sinternal_set_font_selection_order
, 1, 1, 0,
5172 doc
: /* Set font selection order for face font selection to ORDER.
5173 ORDER must be a list of length 4 containing the symbols `:width',
5174 `:height', `:weight', and `:slant'. Face attributes appearing
5175 first in ORDER are matched first, e.g. if `:height' appears before
5176 `:weight' in ORDER, font selection first tries to find a font with
5177 a suitable height, and then tries to match the font weight.
5183 int indices
[DIM (font_sort_order
)];
5186 memset (indices
, 0, sizeof indices
);
5190 CONSP (list
) && i
< DIM (indices
);
5191 list
= XCDR (list
), ++i
)
5193 Lisp_Object attr
= XCAR (list
);
5196 if (EQ (attr
, QCwidth
))
5198 else if (EQ (attr
, QCheight
))
5199 xlfd
= XLFD_POINT_SIZE
;
5200 else if (EQ (attr
, QCweight
))
5202 else if (EQ (attr
, QCslant
))
5207 if (indices
[i
] != 0)
5212 if (!NILP (list
) || i
!= DIM (indices
))
5213 signal_error ("Invalid font sort order", order
);
5214 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5215 if (indices
[i
] == 0)
5216 signal_error ("Invalid font sort order", order
);
5218 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5220 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5221 free_all_realized_faces (Qnil
);
5224 font_update_sort_order (font_sort_order
);
5230 DEFUN ("internal-set-alternative-font-family-alist",
5231 Finternal_set_alternative_font_family_alist
,
5232 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5233 doc
: /* Define alternative font families to try in face font selection.
5234 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5235 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5236 be found. Value is ALIST. */)
5239 Lisp_Object entry
, tail
, tail2
;
5242 alist
= Fcopy_sequence (alist
);
5243 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5245 entry
= XCAR (tail
);
5247 entry
= Fcopy_sequence (entry
);
5248 XSETCAR (tail
, entry
);
5249 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5250 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5253 Vface_alternative_font_family_alist
= alist
;
5254 free_all_realized_faces (Qnil
);
5259 DEFUN ("internal-set-alternative-font-registry-alist",
5260 Finternal_set_alternative_font_registry_alist
,
5261 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5262 doc
: /* Define alternative font registries to try in face font selection.
5263 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5264 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5265 be found. Value is ALIST. */)
5268 Lisp_Object entry
, tail
, tail2
;
5271 alist
= Fcopy_sequence (alist
);
5272 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5274 entry
= XCAR (tail
);
5276 entry
= Fcopy_sequence (entry
);
5277 XSETCAR (tail
, entry
);
5278 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5279 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5281 Vface_alternative_font_registry_alist
= alist
;
5282 free_all_realized_faces (Qnil
);
5287 #ifdef HAVE_WINDOW_SYSTEM
5289 /* Ignore the difference of font point size less than this value. */
5291 #define FONT_POINT_SIZE_QUANTUM 5
5293 /* Return the fontset id of the base fontset name or alias name given
5294 by the fontset attribute of ATTRS. Value is -1 if the fontset
5295 attribute of ATTRS doesn't name a fontset. */
5298 face_fontset (Lisp_Object
*attrs
)
5302 name
= attrs
[LFACE_FONTSET_INDEX
];
5303 if (!STRINGP (name
))
5305 return fs_query_fontset (name
, 0);
5308 #endif /* HAVE_WINDOW_SYSTEM */
5312 /***********************************************************************
5314 ***********************************************************************/
5316 /* Realize basic faces on frame F. Value is zero if frame parameters
5317 of F don't contain enough information needed to realize the default
5321 realize_basic_faces (struct frame
*f
)
5324 int count
= SPECPDL_INDEX ();
5326 /* Block input here so that we won't be surprised by an X expose
5327 event, for instance, without having the faces set up. */
5329 specbind (Qscalable_fonts_allowed
, Qt
);
5331 if (realize_default_face (f
))
5333 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5334 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5335 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5336 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5337 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5338 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5339 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5340 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5341 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5342 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5343 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5345 /* Reflect changes in the `menu' face in menu bars. */
5346 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5348 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5349 #ifdef USE_X_TOOLKIT
5350 if (FRAME_WINDOW_P (f
))
5351 x_update_menu_appearance (f
);
5358 unbind_to (count
, Qnil
);
5364 /* Realize the default face on frame F. If the face is not fully
5365 specified, make it fully-specified. Attributes of the default face
5366 that are not explicitly specified are taken from frame parameters. */
5369 realize_default_face (struct frame
*f
)
5371 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5373 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5376 /* If the `default' face is not yet known, create it. */
5377 lface
= lface_from_face_name (f
, Qdefault
, 0);
5381 XSETFRAME (frame
, f
);
5382 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5385 #ifdef HAVE_WINDOW_SYSTEM
5386 if (FRAME_WINDOW_P (f
))
5388 Lisp_Object font_object
;
5390 XSETFONT (font_object
, FRAME_FONT (f
));
5391 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5392 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5393 f
->default_face_done_p
= 1;
5395 #endif /* HAVE_WINDOW_SYSTEM */
5397 if (!FRAME_WINDOW_P (f
))
5399 LFACE_FAMILY (lface
) = build_string ("default");
5400 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5401 LFACE_SWIDTH (lface
) = Qnormal
;
5402 LFACE_HEIGHT (lface
) = make_number (1);
5403 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5404 LFACE_WEIGHT (lface
) = Qnormal
;
5405 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5406 LFACE_SLANT (lface
) = Qnormal
;
5407 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5408 LFACE_FONTSET (lface
) = Qnil
;
5411 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5412 LFACE_UNDERLINE (lface
) = Qnil
;
5414 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5415 LFACE_OVERLINE (lface
) = Qnil
;
5417 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5418 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5420 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5421 LFACE_BOX (lface
) = Qnil
;
5423 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5424 LFACE_INVERSE (lface
) = Qnil
;
5426 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5428 /* This function is called so early that colors are not yet
5429 set in the frame parameter list. */
5430 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5432 if (CONSP (color
) && STRINGP (XCDR (color
)))
5433 LFACE_FOREGROUND (lface
) = XCDR (color
);
5434 else if (FRAME_WINDOW_P (f
))
5436 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5437 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5442 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5444 /* This function is called so early that colors are not yet
5445 set in the frame parameter list. */
5446 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5447 if (CONSP (color
) && STRINGP (XCDR (color
)))
5448 LFACE_BACKGROUND (lface
) = XCDR (color
);
5449 else if (FRAME_WINDOW_P (f
))
5451 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5452 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5457 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5458 LFACE_STIPPLE (lface
) = Qnil
;
5460 /* Realize the face; it must be fully-specified now. */
5461 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5462 check_lface (lface
);
5463 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5464 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5466 #ifdef HAVE_WINDOW_SYSTEM
5467 #ifdef HAVE_X_WINDOWS
5468 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5470 /* This can happen when making a frame on a display that does
5471 not support the default font. */
5475 /* Otherwise, the font specified for the frame was not
5476 acceptable as a font for the default face (perhaps because
5477 auto-scaled fonts are rejected), so we must adjust the frame
5479 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5481 #endif /* HAVE_X_WINDOWS */
5482 #endif /* HAVE_WINDOW_SYSTEM */
5487 /* Realize basic faces other than the default face in face cache C.
5488 SYMBOL is the face name, ID is the face id the realized face must
5489 have. The default face must have been realized already. */
5492 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5494 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5495 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5496 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5497 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5498 struct face
*new_face
;
5500 /* The default face must exist and be fully specified. */
5501 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5502 check_lface_attrs (attrs
);
5503 xassert (lface_fully_specified_p (attrs
));
5505 /* If SYMBOL isn't know as a face, create it. */
5509 XSETFRAME (frame
, f
);
5510 lface
= Finternal_make_lisp_face (symbol
, frame
);
5513 /* Merge SYMBOL's face with the default face. */
5514 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5515 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5517 /* Realize the face. */
5518 new_face
= realize_face (c
, attrs
, id
);
5522 /* Realize the fully-specified face with attributes ATTRS in face
5523 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5524 non-negative, it is an ID of face to remove before caching the new
5525 face. Value is a pointer to the newly created realized face. */
5527 static struct face
*
5528 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5532 /* LFACE must be fully specified. */
5533 xassert (cache
!= NULL
);
5534 check_lface_attrs (attrs
);
5536 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5538 /* Remove the former face. */
5539 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5540 uncache_face (cache
, former_face
);
5541 free_realized_face (cache
->f
, former_face
);
5542 SET_FRAME_GARBAGED (cache
->f
);
5545 if (FRAME_WINDOW_P (cache
->f
))
5546 face
= realize_x_face (cache
, attrs
);
5547 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5548 face
= realize_tty_face (cache
, attrs
);
5549 else if (FRAME_INITIAL_P (cache
->f
))
5551 /* Create a dummy face. */
5552 face
= make_realized_face (attrs
);
5557 /* Insert the new face. */
5558 cache_face (cache
, face
, lface_hash (attrs
));
5563 #ifdef HAVE_WINDOW_SYSTEM
5564 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5565 same attributes as BASE_FACE except for the font on frame F.
5566 FONT-OBJECT may be nil, in which case, realized a face of
5569 static struct face
*
5570 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
5572 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5575 face
= (struct face
*) xmalloc (sizeof *face
);
5580 = (! NILP (font_object
)
5581 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5582 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5584 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5585 face
->colors_copied_bitwise_p
= 1;
5586 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5589 cache_face (cache
, face
, face
->hash
);
5593 #endif /* HAVE_WINDOW_SYSTEM */
5596 /* Realize the fully-specified face with attributes ATTRS in face
5597 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5598 the new face doesn't share font with the default face, a fontname
5599 is allocated from the heap and set in `font_name' of the new face,
5600 but it is not yet loaded here. Value is a pointer to the newly
5601 created realized face. */
5603 static struct face
*
5604 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5606 struct face
*face
= NULL
;
5607 #ifdef HAVE_WINDOW_SYSTEM
5608 struct face
*default_face
;
5610 Lisp_Object stipple
, overline
, strike_through
, box
;
5612 xassert (FRAME_WINDOW_P (cache
->f
));
5614 /* Allocate a new realized face. */
5615 face
= make_realized_face (attrs
);
5616 face
->ascii_face
= face
;
5620 /* Determine the font to use. Most of the time, the font will be
5621 the same as the font of the default face, so try that first. */
5622 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5624 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5626 face
->font
= default_face
->font
;
5628 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5632 /* If the face attribute ATTRS specifies a fontset, use it as
5633 the base of a new realized fontset. Otherwise, use the same
5634 base fontset as of the default face. The base determines
5635 registry and encoding of a font. It may also determine
5636 foundry and family. The other fields of font name pattern
5637 are constructed from ATTRS. */
5638 int fontset
= face_fontset (attrs
);
5640 /* If we are realizing the default face, ATTRS should specify a
5641 fontset. In other words, if FONTSET is -1, we are not
5642 realizing the default face, thus the default face should have
5643 already been realized. */
5647 fontset
= default_face
->fontset
;
5651 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5652 attrs
[LFACE_FONT_INDEX
]
5653 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5654 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5656 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5657 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5667 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5668 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5669 face
->overstrike
= 1;
5671 /* Load colors, and set remaining attributes. */
5673 load_face_colors (f
, face
, attrs
);
5676 box
= attrs
[LFACE_BOX_INDEX
];
5679 /* A simple box of line width 1 drawn in color given by
5681 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5683 face
->box
= FACE_SIMPLE_BOX
;
5684 face
->box_line_width
= 1;
5686 else if (INTEGERP (box
))
5688 /* Simple box of specified line width in foreground color of the
5690 xassert (XINT (box
) != 0);
5691 face
->box
= FACE_SIMPLE_BOX
;
5692 face
->box_line_width
= XINT (box
);
5693 face
->box_color
= face
->foreground
;
5694 face
->box_color_defaulted_p
= 1;
5696 else if (CONSP (box
))
5698 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5699 being one of `raised' or `sunken'. */
5700 face
->box
= FACE_SIMPLE_BOX
;
5701 face
->box_color
= face
->foreground
;
5702 face
->box_color_defaulted_p
= 1;
5703 face
->box_line_width
= 1;
5707 Lisp_Object keyword
, value
;
5709 keyword
= XCAR (box
);
5717 if (EQ (keyword
, QCline_width
))
5719 if (INTEGERP (value
) && XINT (value
) != 0)
5720 face
->box_line_width
= XINT (value
);
5722 else if (EQ (keyword
, QCcolor
))
5724 if (STRINGP (value
))
5726 face
->box_color
= load_color (f
, face
, value
,
5728 face
->use_box_color_for_shadows_p
= 1;
5731 else if (EQ (keyword
, QCstyle
))
5733 if (EQ (value
, Qreleased_button
))
5734 face
->box
= FACE_RAISED_BOX
;
5735 else if (EQ (value
, Qpressed_button
))
5736 face
->box
= FACE_SUNKEN_BOX
;
5741 /* Text underline, overline, strike-through. */
5743 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5745 /* Use default color (same as foreground color). */
5746 face
->underline_p
= 1;
5747 face
->underline_defaulted_p
= 1;
5748 face
->underline_color
= 0;
5750 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5752 /* Use specified color. */
5753 face
->underline_p
= 1;
5754 face
->underline_defaulted_p
= 0;
5755 face
->underline_color
5756 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5757 LFACE_UNDERLINE_INDEX
);
5759 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5761 face
->underline_p
= 0;
5762 face
->underline_defaulted_p
= 0;
5763 face
->underline_color
= 0;
5766 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5767 if (STRINGP (overline
))
5769 face
->overline_color
5770 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5771 LFACE_OVERLINE_INDEX
);
5772 face
->overline_p
= 1;
5774 else if (EQ (overline
, Qt
))
5776 face
->overline_color
= face
->foreground
;
5777 face
->overline_color_defaulted_p
= 1;
5778 face
->overline_p
= 1;
5781 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5782 if (STRINGP (strike_through
))
5784 face
->strike_through_color
5785 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5786 LFACE_STRIKE_THROUGH_INDEX
);
5787 face
->strike_through_p
= 1;
5789 else if (EQ (strike_through
, Qt
))
5791 face
->strike_through_color
= face
->foreground
;
5792 face
->strike_through_color_defaulted_p
= 1;
5793 face
->strike_through_p
= 1;
5796 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5797 if (!NILP (stipple
))
5798 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5799 #endif /* HAVE_WINDOW_SYSTEM */
5805 /* Map a specified color of face FACE on frame F to a tty color index.
5806 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5807 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5808 default foreground/background colors. */
5811 map_tty_color (struct frame
*f
, struct face
*face
, enum lface_attribute_index idx
, int *defaulted
)
5813 Lisp_Object frame
, color
, def
;
5814 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5815 unsigned long default_pixel
, default_other_pixel
, pixel
;
5817 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5821 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5822 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5826 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5827 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5830 XSETFRAME (frame
, f
);
5831 color
= face
->lface
[idx
];
5835 && CONSP (Vtty_defined_color_alist
)
5836 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5839 /* Associations in tty-defined-color-alist are of the form
5840 (NAME INDEX R G B). We need the INDEX part. */
5841 pixel
= XINT (XCAR (XCDR (def
)));
5844 if (pixel
== default_pixel
&& STRINGP (color
))
5846 pixel
= load_color (f
, face
, color
, idx
);
5849 /* If the foreground of the default face is the default color,
5850 use the foreground color defined by the frame. */
5851 if (FRAME_MSDOS_P (f
))
5853 if (pixel
== default_pixel
5854 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5857 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5859 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5860 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5863 else if (pixel
== default_other_pixel
)
5866 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5868 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5869 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5877 face
->foreground
= pixel
;
5879 face
->background
= pixel
;
5883 /* Realize the fully-specified face with attributes ATTRS in face
5884 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5885 Value is a pointer to the newly created realized face. */
5887 static struct face
*
5888 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5892 int face_colors_defaulted
= 0;
5893 struct frame
*f
= cache
->f
;
5895 /* Frame must be a termcap frame. */
5896 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5898 /* Allocate a new realized face. */
5899 face
= make_realized_face (attrs
);
5901 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5904 /* Map face attributes to TTY appearances. We map slant to
5905 dimmed text because we want italic text to appear differently
5906 and because dimmed text is probably used infrequently. */
5907 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5908 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5910 face
->tty_bold_p
= 1;
5911 if (weight
< 100 || slant
!= 100)
5912 face
->tty_dim_p
= 1;
5913 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5914 face
->tty_underline_p
= 1;
5915 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5916 face
->tty_reverse_p
= 1;
5918 /* Map color names to color indices. */
5919 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5920 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5922 /* Swap colors if face is inverse-video. If the colors are taken
5923 from the frame colors, they are already inverted, since the
5924 frame-creation function calls x-handle-reverse-video. */
5925 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5927 unsigned long tem
= face
->foreground
;
5928 face
->foreground
= face
->background
;
5929 face
->background
= tem
;
5932 if (tty_suppress_bold_inverse_default_colors_p
5934 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5935 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5936 face
->tty_bold_p
= 0;
5942 DEFUN ("tty-suppress-bold-inverse-default-colors",
5943 Ftty_suppress_bold_inverse_default_colors
,
5944 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5945 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5946 SUPPRESS non-nil means suppress it.
5947 This affects bold faces on TTYs whose foreground is the default background
5948 color of the display and whose background is the default foreground color.
5949 For such faces, the bold face attribute is ignored if this variable
5951 (Lisp_Object suppress
)
5953 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5954 ++face_change_count
;
5960 /***********************************************************************
5962 ***********************************************************************/
5964 /* Return the ID of the face to use to display character CH with face
5965 property PROP on frame F in current_buffer. */
5968 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5972 if (NILP (current_buffer
->enable_multibyte_characters
))
5977 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5978 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5982 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5983 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5984 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5985 merge_face_ref (f
, prop
, attrs
, 1, 0);
5986 face_id
= lookup_face (f
, attrs
);
5992 /* Return the face ID associated with buffer position POS for
5993 displaying ASCII characters. Return in *ENDPTR the position at
5994 which a different face is needed, as far as text properties and
5995 overlays are concerned. W is a window displaying current_buffer.
5997 REGION_BEG, REGION_END delimit the region, so it can be
6000 LIMIT is a position not to scan beyond. That is to limit the time
6001 this function can take.
6003 If MOUSE is non-zero, use the character's mouse-face, not its face.
6005 BASE_FACE_ID, if non-negative, specifies a base face id to use
6006 instead of DEFAULT_FACE_ID.
6008 The face returned is suitable for displaying ASCII characters. */
6011 face_at_buffer_position (struct window
*w
, EMACS_INT pos
,
6012 EMACS_INT region_beg
, EMACS_INT region_end
,
6013 EMACS_INT
*endptr
, EMACS_INT limit
,
6014 int mouse
, int base_face_id
)
6016 struct frame
*f
= XFRAME (w
->frame
);
6017 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6018 Lisp_Object prop
, position
;
6020 Lisp_Object
*overlay_vec
;
6023 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6024 Lisp_Object limit1
, end
;
6025 struct face
*default_face
;
6027 /* W must display the current buffer. We could write this function
6028 to use the frame and buffer of W, but right now it doesn't. */
6029 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6031 XSETFRAME (frame
, f
);
6032 XSETFASTINT (position
, pos
);
6035 if (pos
< region_beg
&& region_beg
< endpos
)
6036 endpos
= region_beg
;
6038 /* Get the `face' or `mouse_face' text property at POS, and
6039 determine the next position at which the property changes. */
6040 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6041 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6042 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6044 endpos
= XINT (end
);
6046 /* Look at properties from overlays. */
6048 EMACS_INT next_overlay
;
6050 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6051 if (next_overlay
< endpos
)
6052 endpos
= next_overlay
;
6057 default_face
= FACE_FROM_ID (f
, base_face_id
>= 0 ? base_face_id
6058 : NILP (Vface_remapping_alist
) ? DEFAULT_FACE_ID
6059 : lookup_basic_face (f
, DEFAULT_FACE_ID
));
6061 /* Optimize common cases where we can use the default face. */
6064 && !(pos
>= region_beg
&& pos
< region_end
))
6065 return default_face
->id
;
6067 /* Begin with attributes from the default face. */
6068 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6070 /* Merge in attributes specified via text properties. */
6072 merge_face_ref (f
, prop
, attrs
, 1, 0);
6074 /* Now merge the overlay data. */
6075 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6076 for (i
= 0; i
< noverlays
; i
++)
6081 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6083 merge_face_ref (f
, prop
, attrs
, 1, 0);
6085 oend
= OVERLAY_END (overlay_vec
[i
]);
6086 oendpos
= OVERLAY_POSITION (oend
);
6087 if (oendpos
< endpos
)
6091 /* If in the region, merge in the region face. */
6092 if (pos
>= region_beg
&& pos
< region_end
)
6094 merge_named_face (f
, Qregion
, attrs
, 0);
6096 if (region_end
< endpos
)
6097 endpos
= region_end
;
6102 /* Look up a realized face with the given face attributes,
6103 or realize a new one for ASCII characters. */
6104 return lookup_face (f
, attrs
);
6107 /* Return the face ID at buffer position POS for displaying ASCII
6108 characters associated with overlay strings for overlay OVERLAY.
6110 Like face_at_buffer_position except for OVERLAY. Currently it
6111 simply disregards the `face' properties of all overlays. */
6114 face_for_overlay_string (struct window
*w
, EMACS_INT pos
,
6115 EMACS_INT region_beg
, EMACS_INT region_end
,
6116 EMACS_INT
*endptr
, EMACS_INT limit
,
6117 int mouse
, Lisp_Object overlay
)
6119 struct frame
*f
= XFRAME (w
->frame
);
6120 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6121 Lisp_Object prop
, position
;
6124 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6125 Lisp_Object limit1
, end
;
6126 struct face
*default_face
;
6128 /* W must display the current buffer. We could write this function
6129 to use the frame and buffer of W, but right now it doesn't. */
6130 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6132 XSETFRAME (frame
, f
);
6133 XSETFASTINT (position
, pos
);
6136 if (pos
< region_beg
&& region_beg
< endpos
)
6137 endpos
= region_beg
;
6139 /* Get the `face' or `mouse_face' text property at POS, and
6140 determine the next position at which the property changes. */
6141 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6142 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6143 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6145 endpos
= XINT (end
);
6149 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6151 /* Optimize common cases where we can use the default face. */
6153 && !(pos
>= region_beg
&& pos
< region_end
))
6154 return DEFAULT_FACE_ID
;
6156 /* Begin with attributes from the default face. */
6157 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6159 /* Merge in attributes specified via text properties. */
6161 merge_face_ref (f
, prop
, attrs
, 1, 0);
6163 /* If in the region, merge in the region face. */
6164 if (pos
>= region_beg
&& pos
< region_end
)
6166 merge_named_face (f
, Qregion
, attrs
, 0);
6168 if (region_end
< endpos
)
6169 endpos
= region_end
;
6174 /* Look up a realized face with the given face attributes,
6175 or realize a new one for ASCII characters. */
6176 return lookup_face (f
, attrs
);
6180 /* Compute the face at character position POS in Lisp string STRING on
6181 window W, for ASCII characters.
6183 If STRING is an overlay string, it comes from position BUFPOS in
6184 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6185 not an overlay string. W must display the current buffer.
6186 REGION_BEG and REGION_END give the start and end positions of the
6187 region; both are -1 if no region is visible.
6189 BASE_FACE_ID is the id of a face to merge with. For strings coming
6190 from overlays or the `display' property it is the face at BUFPOS.
6192 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6194 Set *ENDPTR to the next position where to check for faces in
6195 STRING; -1 if the face is constant from POS to the end of the
6198 Value is the id of the face to use. The face returned is suitable
6199 for displaying ASCII characters. */
6202 face_at_string_position (struct window
*w
, Lisp_Object string
,
6203 EMACS_INT pos
, EMACS_INT bufpos
,
6204 EMACS_INT region_beg
, EMACS_INT region_end
,
6205 EMACS_INT
*endptr
, enum face_id base_face_id
,
6208 Lisp_Object prop
, position
, end
, limit
;
6209 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6210 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6211 struct face
*base_face
;
6212 int multibyte_p
= STRING_MULTIBYTE (string
);
6213 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6215 /* Get the value of the face property at the current position within
6216 STRING. Value is nil if there is no face property. */
6217 XSETFASTINT (position
, pos
);
6218 prop
= Fget_text_property (position
, prop_name
, string
);
6220 /* Get the next position at which to check for faces. Value of end
6221 is nil if face is constant all the way to the end of the string.
6222 Otherwise it is a string position where to check faces next.
6223 Limit is the maximum position up to which to check for property
6224 changes in Fnext_single_property_change. Strings are usually
6225 short, so set the limit to the end of the string. */
6226 XSETFASTINT (limit
, SCHARS (string
));
6227 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6229 *endptr
= XFASTINT (end
);
6233 base_face
= FACE_FROM_ID (f
, base_face_id
);
6234 xassert (base_face
);
6236 /* Optimize the default case that there is no face property and we
6237 are not in the region. */
6239 && (base_face_id
!= DEFAULT_FACE_ID
6240 /* BUFPOS <= 0 means STRING is not an overlay string, so
6241 that the region doesn't have to be taken into account. */
6243 || bufpos
< region_beg
6244 || bufpos
>= region_end
)
6246 /* We can't realize faces for different charsets differently
6247 if we don't have fonts, so we can stop here if not working
6248 on a window-system frame. */
6249 || !FRAME_WINDOW_P (f
)
6250 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6251 return base_face
->id
;
6253 /* Begin with attributes from the base face. */
6254 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6256 /* Merge in attributes specified via text properties. */
6258 merge_face_ref (f
, prop
, attrs
, 1, 0);
6260 /* If in the region, merge in the region face. */
6262 && bufpos
>= region_beg
6263 && bufpos
< region_end
)
6264 merge_named_face (f
, Qregion
, attrs
, 0);
6266 /* Look up a realized face with the given face attributes,
6267 or realize a new one for ASCII characters. */
6268 return lookup_face (f
, attrs
);
6272 /* Merge a face into a realized face.
6274 F is frame where faces are (to be) realized.
6276 FACE_NAME is named face to merge.
6278 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6280 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6282 BASE_FACE_ID is realized face to merge into.
6288 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
, int base_face_id
)
6290 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6291 struct face
*base_face
;
6293 base_face
= FACE_FROM_ID (f
, base_face_id
);
6295 return base_face_id
;
6297 if (EQ (face_name
, Qt
))
6299 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6300 return base_face_id
;
6301 face_name
= lface_id_to_name
[face_id
];
6302 /* When called during make-frame, lookup_derived_face may fail
6303 if the faces are uninitialized. Don't signal an error. */
6304 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6305 return (face_id
>= 0 ? face_id
: base_face_id
);
6308 /* Begin with attributes from the base face. */
6309 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6311 if (!NILP (face_name
))
6313 if (!merge_named_face (f
, face_name
, attrs
, 0))
6314 return base_face_id
;
6320 return base_face_id
;
6321 face
= FACE_FROM_ID (f
, face_id
);
6323 return base_face_id
;
6324 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6327 /* Look up a realized face with the given face attributes,
6328 or realize a new one for ASCII characters. */
6329 return lookup_face (f
, attrs
);
6334 #ifndef HAVE_X_WINDOWS
6335 DEFUN ("x-load-color-file", Fx_load_color_file
,
6336 Sx_load_color_file
, 1, 1, 0,
6337 doc
: /* Create an alist of color entries from an external file.
6339 The file should define one named RGB color per line like so:
6341 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6342 (Lisp_Object filename
)
6345 Lisp_Object cmap
= Qnil
;
6346 Lisp_Object abspath
;
6348 CHECK_STRING (filename
);
6349 abspath
= Fexpand_file_name (filename
, Qnil
);
6351 fp
= fopen (SDATA (filename
), "rt");
6355 int red
, green
, blue
;
6360 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6361 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6363 char *name
= buf
+ num
;
6364 num
= strlen (name
) - 1;
6365 if (num
>= 0 && name
[num
] == '\n')
6367 cmap
= Fcons (Fcons (build_string (name
),
6369 make_number (RGB (red
, green
, blue
))),
6371 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6386 /***********************************************************************
6388 ***********************************************************************/
6392 /* Print the contents of the realized face FACE to stderr. */
6395 dump_realized_face (face
)
6398 fprintf (stderr
, "ID: %d\n", face
->id
);
6399 #ifdef HAVE_X_WINDOWS
6400 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6402 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6404 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6405 fprintf (stderr
, "background: 0x%lx (%s)\n",
6407 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6409 fprintf (stderr
, "font_name: %s (%s)\n",
6410 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6411 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6412 #ifdef HAVE_X_WINDOWS
6413 fprintf (stderr
, "font = %p\n", face
->font
);
6415 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6416 fprintf (stderr
, "underline: %d (%s)\n",
6418 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6419 fprintf (stderr
, "hash: %d\n", face
->hash
);
6423 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6430 fprintf (stderr
, "font selection order: ");
6431 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6432 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6433 fprintf (stderr
, "\n");
6435 fprintf (stderr
, "alternative fonts: ");
6436 debug_print (Vface_alternative_font_family_alist
);
6437 fprintf (stderr
, "\n");
6439 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6440 Fdump_face (make_number (i
));
6446 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6448 error ("Not a valid face");
6449 dump_realized_face (face
);
6456 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6457 0, 0, 0, doc
: /* */)
6460 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6461 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6462 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6466 #endif /* GLYPH_DEBUG != 0 */
6470 /***********************************************************************
6472 ***********************************************************************/
6475 syms_of_xfaces (void)
6477 Qface
= intern_c_string ("face");
6479 Qface_no_inherit
= intern_c_string ("face-no-inherit");
6480 staticpro (&Qface_no_inherit
);
6481 Qbitmap_spec_p
= intern_c_string ("bitmap-spec-p");
6482 staticpro (&Qbitmap_spec_p
);
6483 Qframe_set_background_mode
= intern_c_string ("frame-set-background-mode");
6484 staticpro (&Qframe_set_background_mode
);
6486 /* Lisp face attribute keywords. */
6487 QCfamily
= intern_c_string (":family");
6488 staticpro (&QCfamily
);
6489 QCheight
= intern_c_string (":height");
6490 staticpro (&QCheight
);
6491 QCweight
= intern_c_string (":weight");
6492 staticpro (&QCweight
);
6493 QCslant
= intern_c_string (":slant");
6494 staticpro (&QCslant
);
6495 QCunderline
= intern_c_string (":underline");
6496 staticpro (&QCunderline
);
6497 QCinverse_video
= intern_c_string (":inverse-video");
6498 staticpro (&QCinverse_video
);
6499 QCreverse_video
= intern_c_string (":reverse-video");
6500 staticpro (&QCreverse_video
);
6501 QCforeground
= intern_c_string (":foreground");
6502 staticpro (&QCforeground
);
6503 QCbackground
= intern_c_string (":background");
6504 staticpro (&QCbackground
);
6505 QCstipple
= intern_c_string (":stipple");
6506 staticpro (&QCstipple
);
6507 QCwidth
= intern_c_string (":width");
6508 staticpro (&QCwidth
);
6509 QCfont
= intern_c_string (":font");
6510 staticpro (&QCfont
);
6511 QCfontset
= intern_c_string (":fontset");
6512 staticpro (&QCfontset
);
6513 QCbold
= intern_c_string (":bold");
6514 staticpro (&QCbold
);
6515 QCitalic
= intern_c_string (":italic");
6516 staticpro (&QCitalic
);
6517 QCoverline
= intern_c_string (":overline");
6518 staticpro (&QCoverline
);
6519 QCstrike_through
= intern_c_string (":strike-through");
6520 staticpro (&QCstrike_through
);
6521 QCbox
= intern_c_string (":box");
6523 QCinherit
= intern_c_string (":inherit");
6524 staticpro (&QCinherit
);
6526 /* Symbols used for Lisp face attribute values. */
6527 QCcolor
= intern_c_string (":color");
6528 staticpro (&QCcolor
);
6529 QCline_width
= intern_c_string (":line-width");
6530 staticpro (&QCline_width
);
6531 QCstyle
= intern_c_string (":style");
6532 staticpro (&QCstyle
);
6533 Qreleased_button
= intern_c_string ("released-button");
6534 staticpro (&Qreleased_button
);
6535 Qpressed_button
= intern_c_string ("pressed-button");
6536 staticpro (&Qpressed_button
);
6537 Qnormal
= intern_c_string ("normal");
6538 staticpro (&Qnormal
);
6539 Qultra_light
= intern_c_string ("ultra-light");
6540 staticpro (&Qultra_light
);
6541 Qextra_light
= intern_c_string ("extra-light");
6542 staticpro (&Qextra_light
);
6543 Qlight
= intern_c_string ("light");
6544 staticpro (&Qlight
);
6545 Qsemi_light
= intern_c_string ("semi-light");
6546 staticpro (&Qsemi_light
);
6547 Qsemi_bold
= intern_c_string ("semi-bold");
6548 staticpro (&Qsemi_bold
);
6549 Qbold
= intern_c_string ("bold");
6551 Qextra_bold
= intern_c_string ("extra-bold");
6552 staticpro (&Qextra_bold
);
6553 Qultra_bold
= intern_c_string ("ultra-bold");
6554 staticpro (&Qultra_bold
);
6555 Qoblique
= intern_c_string ("oblique");
6556 staticpro (&Qoblique
);
6557 Qitalic
= intern_c_string ("italic");
6558 staticpro (&Qitalic
);
6559 Qreverse_oblique
= intern_c_string ("reverse-oblique");
6560 staticpro (&Qreverse_oblique
);
6561 Qreverse_italic
= intern_c_string ("reverse-italic");
6562 staticpro (&Qreverse_italic
);
6563 Qultra_condensed
= intern_c_string ("ultra-condensed");
6564 staticpro (&Qultra_condensed
);
6565 Qextra_condensed
= intern_c_string ("extra-condensed");
6566 staticpro (&Qextra_condensed
);
6567 Qcondensed
= intern_c_string ("condensed");
6568 staticpro (&Qcondensed
);
6569 Qsemi_condensed
= intern_c_string ("semi-condensed");
6570 staticpro (&Qsemi_condensed
);
6571 Qsemi_expanded
= intern_c_string ("semi-expanded");
6572 staticpro (&Qsemi_expanded
);
6573 Qexpanded
= intern_c_string ("expanded");
6574 staticpro (&Qexpanded
);
6575 Qextra_expanded
= intern_c_string ("extra-expanded");
6576 staticpro (&Qextra_expanded
);
6577 Qultra_expanded
= intern_c_string ("ultra-expanded");
6578 staticpro (&Qultra_expanded
);
6579 Qbackground_color
= intern_c_string ("background-color");
6580 staticpro (&Qbackground_color
);
6581 Qforeground_color
= intern_c_string ("foreground-color");
6582 staticpro (&Qforeground_color
);
6583 Qunspecified
= intern_c_string ("unspecified");
6584 staticpro (&Qunspecified
);
6585 Qignore_defface
= intern_c_string (":ignore-defface");
6586 staticpro (&Qignore_defface
);
6588 Qface_alias
= intern_c_string ("face-alias");
6589 staticpro (&Qface_alias
);
6590 Qdefault
= intern_c_string ("default");
6591 staticpro (&Qdefault
);
6592 Qtool_bar
= intern_c_string ("tool-bar");
6593 staticpro (&Qtool_bar
);
6594 Qregion
= intern_c_string ("region");
6595 staticpro (&Qregion
);
6596 Qfringe
= intern_c_string ("fringe");
6597 staticpro (&Qfringe
);
6598 Qheader_line
= intern_c_string ("header-line");
6599 staticpro (&Qheader_line
);
6600 Qscroll_bar
= intern_c_string ("scroll-bar");
6601 staticpro (&Qscroll_bar
);
6602 Qmenu
= intern_c_string ("menu");
6604 Qcursor
= intern_c_string ("cursor");
6605 staticpro (&Qcursor
);
6606 Qborder
= intern_c_string ("border");
6607 staticpro (&Qborder
);
6608 Qmouse
= intern_c_string ("mouse");
6609 staticpro (&Qmouse
);
6610 Qmode_line_inactive
= intern_c_string ("mode-line-inactive");
6611 staticpro (&Qmode_line_inactive
);
6612 Qvertical_border
= intern_c_string ("vertical-border");
6613 staticpro (&Qvertical_border
);
6614 Qtty_color_desc
= intern_c_string ("tty-color-desc");
6615 staticpro (&Qtty_color_desc
);
6616 Qtty_color_standard_values
= intern_c_string ("tty-color-standard-values");
6617 staticpro (&Qtty_color_standard_values
);
6618 Qtty_color_by_index
= intern_c_string ("tty-color-by-index");
6619 staticpro (&Qtty_color_by_index
);
6620 Qtty_color_alist
= intern_c_string ("tty-color-alist");
6621 staticpro (&Qtty_color_alist
);
6622 Qscalable_fonts_allowed
= intern_c_string ("scalable-fonts-allowed");
6623 staticpro (&Qscalable_fonts_allowed
);
6625 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6626 staticpro (&Vparam_value_alist
);
6627 Vface_alternative_font_family_alist
= Qnil
;
6628 staticpro (&Vface_alternative_font_family_alist
);
6629 Vface_alternative_font_registry_alist
= Qnil
;
6630 staticpro (&Vface_alternative_font_registry_alist
);
6632 defsubr (&Sinternal_make_lisp_face
);
6633 defsubr (&Sinternal_lisp_face_p
);
6634 defsubr (&Sinternal_set_lisp_face_attribute
);
6635 #ifdef HAVE_WINDOW_SYSTEM
6636 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6638 defsubr (&Scolor_gray_p
);
6639 defsubr (&Scolor_supported_p
);
6640 #ifndef HAVE_X_WINDOWS
6641 defsubr (&Sx_load_color_file
);
6643 defsubr (&Sface_attribute_relative_p
);
6644 defsubr (&Smerge_face_attribute
);
6645 defsubr (&Sinternal_get_lisp_face_attribute
);
6646 defsubr (&Sinternal_lisp_face_attribute_values
);
6647 defsubr (&Sinternal_lisp_face_equal_p
);
6648 defsubr (&Sinternal_lisp_face_empty_p
);
6649 defsubr (&Sinternal_copy_lisp_face
);
6650 defsubr (&Sinternal_merge_in_global_face
);
6651 defsubr (&Sface_font
);
6652 defsubr (&Sframe_face_alist
);
6653 defsubr (&Sdisplay_supports_face_attributes_p
);
6654 defsubr (&Scolor_distance
);
6655 defsubr (&Sinternal_set_font_selection_order
);
6656 defsubr (&Sinternal_set_alternative_font_family_alist
);
6657 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6658 defsubr (&Sface_attributes_as_vector
);
6660 defsubr (&Sdump_face
);
6661 defsubr (&Sshow_face_resources
);
6662 #endif /* GLYPH_DEBUG */
6663 defsubr (&Sclear_face_cache
);
6664 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6666 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6667 defsubr (&Sdump_colors
);
6670 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6671 doc
: /* *Limit for font matching.
6672 If an integer > 0, font matching functions won't load more than
6673 that number of fonts when searching for a matching font. */);
6674 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6676 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6677 doc
: /* List of global face definitions (for internal use only.) */);
6678 Vface_new_frame_defaults
= Qnil
;
6680 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6681 doc
: /* *Default stipple pattern used on monochrome displays.
6682 This stipple pattern is used on monochrome displays
6683 instead of shades of gray for a face background color.
6684 See `set-face-stipple' for possible values for this variable. */);
6685 Vface_default_stipple
= make_pure_c_string ("gray3");
6687 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6688 doc
: /* An alist of defined terminal colors and their RGB values.
6689 See the docstring of `tty-color-alist' for the details. */);
6690 Vtty_defined_color_alist
= Qnil
;
6692 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6693 doc
: /* Allowed scalable fonts.
6694 A value of nil means don't allow any scalable fonts.
6695 A value of t means allow any scalable font.
6696 Otherwise, value must be a list of regular expressions. A font may be
6697 scaled if its name matches a regular expression in the list.
6698 Note that if value is nil, a scalable font might still be used, if no
6699 other font of the appropriate family and registry is available. */);
6700 Vscalable_fonts_allowed
= Qnil
;
6702 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6703 doc
: /* List of ignored fonts.
6704 Each element is a regular expression that matches names of fonts to
6706 Vface_ignored_fonts
= Qnil
;
6708 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6709 doc
: /* Alist of face remappings.
6710 Each element is of the form:
6712 (FACE REPLACEMENT...),
6714 which causes display of the face FACE to use REPLACEMENT... instead.
6715 REPLACEMENT... is interpreted the same way as the value of a `face'
6716 text property: it may be (1) A face name, (2) A list of face names,
6717 (3) A property-list of face attribute/value pairs, or (4) A list of
6718 face names or lists containing face attribute/value pairs.
6720 Multiple entries in REPLACEMENT... are merged together to form the final
6721 result, with faces or attributes earlier in the list taking precedence
6722 over those that are later.
6724 Face-name remapping cycles are suppressed; recursive references use the
6725 underlying face instead of the remapped face. So a remapping of the form:
6727 (FACE EXTRA-FACE... FACE)
6731 (FACE (FACE-ATTR VAL ...) FACE)
6733 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6734 existing definition of FACE. Note that for the default face, this isn't
6735 necessary, as every face inherits from the default face.
6737 Making this variable buffer-local is a good way to allow buffer-specific
6738 face definitions. For instance, the mode my-mode could define a face
6739 `my-mode-default', and then in the mode setup function, do:
6741 (set (make-local-variable 'face-remapping-alist)
6742 '((default my-mode-default)))).
6744 Because Emacs normally only redraws screen areas when the underlying
6745 buffer contents change, you may need to call `redraw-display' after
6746 changing this variable for it to take effect. */);
6747 Vface_remapping_alist
= Qnil
;
6749 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6750 doc
: /* Alist of fonts vs the rescaling factors.
6751 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6752 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6753 RESCALE-RATIO is a floating point number to specify how much larger
6754 \(or smaller) font we should use. For instance, if a face requests
6755 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6756 Vface_font_rescale_alist
= Qnil
;
6758 #ifdef HAVE_WINDOW_SYSTEM
6759 defsubr (&Sbitmap_spec_p
);
6760 defsubr (&Sx_list_fonts
);
6761 defsubr (&Sinternal_face_x_get_resource
);
6762 defsubr (&Sx_family_fonts
);