1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2017 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or (at
10 your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
24 When using Emacs with X, the display style of characters can be
25 changed by defining `faces'. Each face can specify the following
32 3. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 4. Font height in 1/10pt.
37 5. Font weight, e.g. `bold'.
39 6. Font slant, e.g. `italic'.
45 9. Whether or not characters should be underlined, and in what color.
47 10. Whether or not characters should be displayed in inverse video.
49 11. A background stipple, a bitmap.
51 12. Whether or not characters should be overlined, and in what color.
53 13. Whether or not characters should be strike-through, and in what
56 14. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 15. Font-spec, or nil. This is a special attribute.
61 A font-spec is a collection of font attributes (specs).
63 When this attribute is specified, the face uses a font matching
64 with the specs as is except for what overwritten by the specs in
65 the fontset (see below). In addition, the other font-related
66 attributes (1st thru 5th) are updated from the spec.
68 On the other hand, if one of the other font-related attributes are
69 specified, the corresponding specs in this attribute is set to nil.
71 15. A face name or list of face names from which to inherit attributes.
73 16. A specified average font width, which is invisible from Lisp,
74 and is used to ensure that a font specified on the command line,
75 for example, can be matched exactly.
77 17. A fontset name. This is another special attribute.
79 A fontset is a mappings from characters to font-specs, and the
80 specs overwrite the font-spec in the 14th attribute.
83 Faces are frame-local by nature because Emacs allows you to define the
84 same named face (face names are symbols) differently for different
85 frames. Each frame has an alist of face definitions for all named
86 faces. The value of a named face in such an alist is a Lisp vector
87 with the symbol `face' in slot 0, and a slot for each of the face
88 attributes mentioned above.
90 There is also a global face alist `Vface_new_frame_defaults'. Face
91 definitions from this list are used to initialize faces of newly
94 A face doesn't have to specify all attributes. Those not specified
95 have a value of `unspecified'. Faces specifying all attributes but
96 the 14th are called `fully-specified'.
101 The display style of a given character in the text is determined by
102 combining several faces. This process is called `face merging'.
103 Any aspect of the display style that isn't specified by overlays or
104 text properties is taken from the `default' face. Since it is made
105 sure that the default face is always fully-specified, face merging
106 always results in a fully-specified face.
111 After all face attributes for a character have been determined by
112 merging faces of that character, that face is `realized'. The
113 realization process maps face attributes to what is physically
114 available on the system where Emacs runs. The result is a
115 `realized face' in the form of a struct face which is stored in the
116 face cache of the frame on which it was realized.
118 Face realization is done in the context of the character to display
119 because different fonts may be used for different characters. In
120 other words, for characters that have different font
121 specifications, different realized faces are needed to display
124 Font specification is done by fontsets. See the comment in
125 fontset.c for the details. In the current implementation, all ASCII
126 characters share the same font in a fontset.
128 Faces are at first realized for ASCII characters, and, at that
129 time, assigned a specific realized fontset. Hereafter, we call
130 such a face as `ASCII face'. When a face for a multibyte character
131 is realized, it inherits (thus shares) a fontset of an ASCII face
132 that has the same attributes other than font-related ones.
134 Thus, all realized faces have a realized fontset.
139 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
140 font as ASCII characters. That is because it is expected that
141 unibyte text users specify a font that is suitable both for ASCII
142 and raw 8-bit characters.
147 Font selection tries to find the best available matching font for a
148 given (character, face) combination.
150 If the face specifies a fontset name, that fontset determines a
151 pattern for fonts of the given character. If the face specifies a
152 font name or the other font-related attributes, a fontset is
153 realized from the default fontset. In that case, that
154 specification determines a pattern for ASCII characters and the
155 default fontset determines a pattern for multibyte characters.
157 Available fonts on the system on which Emacs runs are then matched
158 against the font pattern. The result of font selection is the best
159 match for the given face attributes in this font list.
161 Font selection can be influenced by the user.
163 1. The user can specify the relative importance he gives the face
164 attributes width, height, weight, and slant by setting
165 face-font-selection-order (faces.el) to a list of face attribute
166 names. The default is '(:width :height :weight :slant), and means
167 that font selection first tries to find a good match for the font
168 width specified by a face, then---within fonts with that
169 width---tries to find a best match for the specified font height,
172 2. Setting face-font-family-alternatives allows the user to
173 specify alternative font families to try if a family specified by a
176 3. Setting face-font-registry-alternatives allows the user to
177 specify all alternative font registries to try for a face
178 specifying a registry.
180 4. Setting face-ignored-fonts allows the user to ignore specific
184 Character composition.
186 Usually, the realization process is already finished when Emacs
187 actually reflects the desired glyph matrix on the screen. However,
188 on displaying a composition (sequence of characters to be composed
189 on the screen), a suitable font for the components of the
190 composition is selected and realized while drawing them on the
191 screen, i.e. the realization process is delayed but in principle
195 Initialization of basic faces.
197 The faces `default', `modeline' are considered `basic faces'.
198 When redisplay happens the first time for a newly created frame,
199 basic faces are realized for CHARSET_ASCII. Frame parameters are
200 used to fill in unspecified attributes of the default face. */
204 #include "sysstdio.h"
205 #include <sys/types.h>
206 #include <sys/stat.h>
209 #include "character.h"
214 #include <Xm/XmStrDefs.h>
215 #endif /* USE_MOTIF */
221 #ifdef HAVE_WINDOW_SYSTEM
225 #define GCGraphicsExposures 0
226 #endif /* HAVE_NTGUI */
229 #define GCGraphicsExposures 0
231 #endif /* HAVE_WINDOW_SYSTEM */
234 #include "dispextern.h"
235 #include "blockinput.h"
237 #include "termchar.h"
241 #ifdef HAVE_X_WINDOWS
243 /* Compensate for a bug in Xos.h on some systems, on which it requires
244 time.h. On some such systems, Xos.h tries to redefine struct
245 timeval and struct timezone if USG is #defined while it is
248 #ifdef XOS_NEEDS_TIME_H
254 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
256 #else /* not XOS_NEEDS_TIME_H */
258 #endif /* not XOS_NEEDS_TIME_H */
260 #endif /* HAVE_X_WINDOWS */
264 /* True if face attribute ATTR is unspecified. */
266 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
268 /* True if face attribute ATTR is `ignore-defface'. */
270 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
272 /* Size of hash table of realized faces in face caches (should be a
275 #define FACE_CACHE_BUCKETS_SIZE 1001
277 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
279 /* Alist of alternative font families. Each element is of the form
280 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
281 try FAMILY1, then FAMILY2, ... */
283 Lisp_Object Vface_alternative_font_family_alist
;
285 /* Alist of alternative font registries. Each element is of the form
286 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
287 loaded, try REGISTRY1, then REGISTRY2, ... */
289 Lisp_Object Vface_alternative_font_registry_alist
;
291 /* The next ID to assign to Lisp faces. */
293 static int next_lface_id
;
295 /* A vector mapping Lisp face Id's to face names. */
297 static Lisp_Object
*lface_id_to_name
;
298 static ptrdiff_t lface_id_to_name_size
;
300 #ifdef HAVE_WINDOW_SYSTEM
302 /* Counter for calls to clear_face_cache. If this counter reaches
303 CLEAR_FONT_TABLE_COUNT, and a frame has more than
304 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
306 static int clear_font_table_count
;
307 #define CLEAR_FONT_TABLE_COUNT 100
308 #define CLEAR_FONT_TABLE_NFONTS 10
310 #endif /* HAVE_WINDOW_SYSTEM */
312 /* True means face attributes have been changed since the last
313 redisplay. Used in redisplay_internal. */
317 /* True means don't display bold text if a face's foreground
318 and background colors are the inverse of the default colors of the
319 display. This is a kluge to suppress `bold black' foreground text
320 which is hard to read on an LCD monitor. */
322 static bool tty_suppress_bold_inverse_default_colors_p
;
324 /* A list of the form `((x . y))' used to avoid consing in
325 Finternal_set_lisp_face_attribute. */
327 static Lisp_Object Vparam_value_alist
;
329 /* The total number of colors currently allocated. */
332 static int ncolors_allocated
;
333 static int npixmaps_allocated
;
337 /* True means the definition of the `menu' face for new frames has
340 static bool menu_face_changed_default
;
342 struct named_merge_point
;
344 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
346 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
347 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
348 static bool realize_basic_faces (struct frame
*);
349 static bool realize_default_face (struct frame
*);
350 static void realize_named_face (struct frame
*, Lisp_Object
, int);
351 static struct face_cache
*make_face_cache (struct frame
*);
352 static void free_face_cache (struct face_cache
*);
353 static bool merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
354 bool, struct named_merge_point
*);
355 static int color_distance (XColor
*x
, XColor
*y
);
357 #ifdef HAVE_WINDOW_SYSTEM
358 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
359 static void clear_face_gcs (struct face_cache
*);
360 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
362 #endif /* HAVE_WINDOW_SYSTEM */
364 /***********************************************************************
366 ***********************************************************************/
368 #ifdef HAVE_X_WINDOWS
370 #ifdef DEBUG_X_COLORS
372 /* The following is a poor mans infrastructure for debugging X color
373 allocation problems on displays with PseudoColor-8. Some X servers
374 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
375 color reference counts completely so that they don't signal an
376 error when a color is freed whose reference count is already 0.
377 Other X servers do. To help me debug this, the following code
378 implements a simple reference counting schema of its own, for a
379 single display/screen. --gerd. */
381 /* Reference counts for pixel colors. */
383 int color_count
[256];
385 /* Register color PIXEL as allocated. */
388 register_color (unsigned long pixel
)
390 eassert (pixel
< 256);
391 ++color_count
[pixel
];
395 /* Register color PIXEL as deallocated. */
398 unregister_color (unsigned long pixel
)
400 eassert (pixel
< 256);
401 if (color_count
[pixel
] > 0)
402 --color_count
[pixel
];
408 /* Register N colors from PIXELS as deallocated. */
411 unregister_colors (unsigned long *pixels
, int n
)
414 for (i
= 0; i
< n
; ++i
)
415 unregister_color (pixels
[i
]);
419 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
420 doc
: /* Dump currently allocated colors to stderr. */)
425 fputc ('\n', stderr
);
427 for (i
= n
= 0; i
< ARRAYELTS (color_count
); ++i
)
430 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
433 fputc ('\n', stderr
);
435 fputc ('\t', stderr
);
439 fputc ('\n', stderr
);
443 #endif /* DEBUG_X_COLORS */
446 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
447 color values. Interrupt input must be blocked when this function
451 x_free_colors (struct frame
*f
, unsigned long *pixels
, int npixels
)
453 /* If display has an immutable color map, freeing colors is not
454 necessary and some servers don't allow it. So don't do it. */
455 if (x_mutable_colormap (FRAME_X_VISUAL (f
)))
457 #ifdef DEBUG_X_COLORS
458 unregister_colors (pixels
, npixels
);
460 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
468 /* Free colors used on display DPY. PIXELS is an array of NPIXELS pixel
469 color values. Interrupt input must be blocked when this function
473 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
474 unsigned long *pixels
, int npixels
)
476 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
478 /* If display has an immutable color map, freeing colors is not
479 necessary and some servers don't allow it. So don't do it. */
480 if (x_mutable_colormap (dpyinfo
->visual
))
482 #ifdef DEBUG_X_COLORS
483 unregister_colors (pixels
, npixels
);
485 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
488 #endif /* USE_X_TOOLKIT */
490 /* Create and return a GC for use on frame F. GC values and mask
491 are given by XGCV and MASK. */
494 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
498 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_DRAWABLE (f
), mask
, xgcv
);
505 /* Free GC which was used on frame F. */
508 x_free_gc (struct frame
*f
, GC gc
)
510 eassert (input_blocked_p ());
511 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
512 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
515 #endif /* HAVE_X_WINDOWS */
518 /* W32 emulation of GCs */
521 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
525 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
532 /* Free GC which was used on frame F. */
535 x_free_gc (struct frame
*f
, GC gc
)
537 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
541 #endif /* HAVE_NTGUI */
544 /* NS emulation of GCs */
547 x_create_gc (struct frame
*f
,
551 GC gc
= xmalloc (sizeof *gc
);
557 x_free_gc (struct frame
*f
, GC gc
)
563 /***********************************************************************
565 ***********************************************************************/
567 /* Initialize face cache and basic faces for frame F. */
570 init_frame_faces (struct frame
*f
)
572 /* Make a face cache, if F doesn't have one. */
573 if (FRAME_FACE_CACHE (f
) == NULL
)
574 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
576 #ifdef HAVE_WINDOW_SYSTEM
577 /* Make the image cache. */
578 if (FRAME_WINDOW_P (f
))
580 /* We initialize the image cache when creating the first frame
581 on a terminal, and not during terminal creation. This way,
582 `x-open-connection' on a tty won't create an image cache. */
583 if (FRAME_IMAGE_CACHE (f
) == NULL
)
584 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
585 ++FRAME_IMAGE_CACHE (f
)->refcount
;
587 #endif /* HAVE_WINDOW_SYSTEM */
589 /* Realize faces early (Bug#17889). */
590 if (!realize_basic_faces (f
))
595 /* Free face cache of frame F. Called from frame-dependent
596 resource freeing function, e.g. (x|tty)_free_frame_resources. */
599 free_frame_faces (struct frame
*f
)
601 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
605 free_face_cache (face_cache
);
606 FRAME_FACE_CACHE (f
) = NULL
;
609 #ifdef HAVE_WINDOW_SYSTEM
610 if (FRAME_WINDOW_P (f
))
612 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
615 --image_cache
->refcount
;
616 if (image_cache
->refcount
== 0)
617 free_image_cache (f
);
620 #endif /* HAVE_WINDOW_SYSTEM */
624 /* Clear face caches, and recompute basic faces for frame F. Call
625 this after changing frame parameters on which those faces depend,
626 or when realized faces have been freed due to changing attributes
630 recompute_basic_faces (struct frame
*f
)
632 if (FRAME_FACE_CACHE (f
))
634 clear_face_cache (false);
635 if (!realize_basic_faces (f
))
641 /* Clear the face caches of all frames. CLEAR_FONTS_P means
642 try to free unused fonts, too. */
645 clear_face_cache (bool clear_fonts_p
)
647 #ifdef HAVE_WINDOW_SYSTEM
648 Lisp_Object tail
, frame
;
651 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
653 /* From time to time see if we can unload some fonts. This also
654 frees all realized faces on all frames. Fonts needed by
655 faces will be loaded again when faces are realized again. */
656 clear_font_table_count
= 0;
658 FOR_EACH_FRAME (tail
, frame
)
660 struct frame
*f
= XFRAME (frame
);
661 if (FRAME_WINDOW_P (f
)
662 && FRAME_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
664 clear_font_cache (f
);
665 free_all_realized_faces (frame
);
671 /* Clear GCs of realized faces. */
672 FOR_EACH_FRAME (tail
, frame
)
674 struct frame
*f
= XFRAME (frame
);
675 if (FRAME_WINDOW_P (f
))
676 clear_face_gcs (FRAME_FACE_CACHE (f
));
678 clear_image_caches (Qnil
);
680 #endif /* HAVE_WINDOW_SYSTEM */
683 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
684 doc
: /* Clear face caches on all frames.
685 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
686 (Lisp_Object thoroughly
)
688 clear_face_cache (!NILP (thoroughly
));
690 windows_or_buffers_changed
= 53;
695 /***********************************************************************
697 ***********************************************************************/
699 #ifdef HAVE_WINDOW_SYSTEM
701 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
702 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
703 A bitmap specification is either a string, a file name, or a list
704 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
705 HEIGHT is its height, and DATA is a string containing the bits of
706 the pixmap. Bits are stored row by row, each row occupies
707 \(WIDTH + 7)/8 bytes. */)
710 bool pixmap_p
= false;
712 if (STRINGP (object
))
713 /* If OBJECT is a string, it's a file name. */
715 else if (CONSP (object
))
717 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
718 HEIGHT must be ints > 0, and DATA must be string large
719 enough to hold a bitmap of the specified size. */
720 Lisp_Object width
, height
, data
;
722 height
= width
= data
= Qnil
;
726 width
= XCAR (object
);
727 object
= XCDR (object
);
730 height
= XCAR (object
);
731 object
= XCDR (object
);
733 data
= XCAR (object
);
738 && RANGED_INTEGERP (1, width
, INT_MAX
)
739 && RANGED_INTEGERP (1, height
, INT_MAX
))
741 int bytes_per_row
= (XINT (width
) + CHAR_BIT
- 1) / CHAR_BIT
;
742 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
747 return pixmap_p
? Qt
: Qnil
;
751 /* Load a bitmap according to NAME (which is either a file name or a
752 pixmap spec) for use on frame F. Value is the bitmap_id (see
753 xfns.c). If NAME is nil, return with a bitmap id of zero. If
754 bitmap cannot be loaded, display a message saying so, and return
758 load_pixmap (struct frame
*f
, Lisp_Object name
)
765 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
770 /* Decode a bitmap spec into a bitmap. */
775 w
= XINT (Fcar (name
));
776 h
= XINT (Fcar (Fcdr (name
)));
777 bits
= Fcar (Fcdr (Fcdr (name
)));
779 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
784 /* It must be a string -- a file name. */
785 bitmap_id
= x_create_bitmap_from_file (f
, name
);
791 add_to_log ("Invalid or undefined bitmap `%s'", name
);
797 ++npixmaps_allocated
;
804 #endif /* HAVE_WINDOW_SYSTEM */
808 /***********************************************************************
810 ***********************************************************************/
812 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
813 RGB_LIST should contain (at least) 3 lisp integers.
814 Return true iff RGB_LIST is OK. */
817 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
819 #define PARSE_RGB_LIST_FIELD(field) \
820 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
822 color->field = XINT (XCAR (rgb_list)); \
823 rgb_list = XCDR (rgb_list); \
828 PARSE_RGB_LIST_FIELD (red
);
829 PARSE_RGB_LIST_FIELD (green
);
830 PARSE_RGB_LIST_FIELD (blue
);
836 /* Lookup on frame F the color described by the lisp string COLOR.
837 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
838 non-zero, then the `standard' definition of the same color is
842 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
845 Lisp_Object frame
, color_desc
;
847 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
850 XSETFRAME (frame
, f
);
852 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
853 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
857 if (! INTEGERP (XCAR (XCDR (color_desc
))))
860 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
862 rgb
= XCDR (XCDR (color_desc
));
863 if (! parse_rgb_list (rgb
, tty_color
))
866 /* Should we fill in STD_COLOR too? */
869 /* Default STD_COLOR to the same as TTY_COLOR. */
870 *std_color
= *tty_color
;
872 /* Do a quick check to see if the returned descriptor is
873 actually _exactly_ equal to COLOR, otherwise we have to
874 lookup STD_COLOR separately. If it's impossible to lookup
875 a standard color, we just give up and use TTY_COLOR. */
876 if ((!STRINGP (XCAR (color_desc
))
877 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
878 && !NILP (Ffboundp (Qtty_color_standard_values
)))
880 /* Look up STD_COLOR separately. */
881 rgb
= call1 (Qtty_color_standard_values
, color
);
882 if (! parse_rgb_list (rgb
, std_color
))
889 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
890 /* We were called early during startup, and the colors are not
891 yet set up in tty-defined-color-alist. Don't return a failure
892 indication, since this produces the annoying "Unable to
893 load color" messages in the *Messages* buffer. */
896 /* tty-color-desc seems to have returned a bad value. */
900 /* A version of defined_color for non-X frames. */
903 tty_defined_color (struct frame
*f
, const char *color_name
,
904 XColor
*color_def
, bool alloc
)
909 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
912 color_def
->green
= 0;
915 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
917 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
919 if (strcmp (color_name
, "unspecified-fg") == 0)
920 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
921 else if (strcmp (color_name
, "unspecified-bg") == 0)
922 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
925 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
932 /* Decide if color named COLOR_NAME is valid for the display
933 associated with the frame F; if so, return the rgb values in
934 COLOR_DEF. If ALLOC, allocate a new colormap cell.
936 This does the right thing for any type of frame. */
939 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
942 if (!FRAME_WINDOW_P (f
))
943 return tty_defined_color (f
, color_name
, color_def
, alloc
);
944 #ifdef HAVE_X_WINDOWS
945 else if (FRAME_X_P (f
))
946 return x_defined_color (f
, color_name
, color_def
, alloc
);
949 else if (FRAME_W32_P (f
))
950 return w32_defined_color (f
, color_name
, color_def
, alloc
);
953 else if (FRAME_NS_P (f
))
954 return ns_defined_color (f
, color_name
, color_def
, alloc
, true);
961 /* Given the index IDX of a tty color on frame F, return its name, a
965 tty_color_name (struct frame
*f
, int idx
)
967 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
972 XSETFRAME (frame
, f
);
973 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
976 return XCAR (coldesc
);
979 /* We can have an MS-DOS frame under -nw for a short window of
980 opportunity before internal_terminal_init is called. DTRT. */
981 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
982 return msdos_stdcolor_name (idx
);
985 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
986 return build_string (unspecified_fg
);
987 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
988 return build_string (unspecified_bg
);
994 /* Return true if COLOR_NAME is a shade of gray (or white or
997 The criterion implemented here is not a terribly sophisticated one. */
1000 face_color_gray_p (struct frame
*f
, const char *color_name
)
1005 if (defined_color (f
, color_name
, &color
, false))
1006 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1007 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1009 ((eabs (color
.red
- color
.green
)
1010 < max (color
.red
, color
.green
) / 20)
1011 && (eabs (color
.green
- color
.blue
)
1012 < max (color
.green
, color
.blue
) / 20)
1013 && (eabs (color
.blue
- color
.red
)
1014 < max (color
.blue
, color
.red
) / 20)));
1022 /* Return true if color COLOR_NAME can be displayed on frame F.
1023 BACKGROUND_P means the color will be used as background color. */
1026 face_color_supported_p (struct frame
*f
, const char *color_name
,
1032 XSETFRAME (frame
, f
);
1034 #ifdef HAVE_WINDOW_SYSTEM
1036 ? (!NILP (Fxw_display_color_p (frame
))
1037 || xstrcasecmp (color_name
, "black") == 0
1038 || xstrcasecmp (color_name
, "white") == 0
1040 && face_color_gray_p (f
, color_name
))
1041 || (!NILP (Fx_display_grayscale_p (frame
))
1042 && face_color_gray_p (f
, color_name
)))
1045 tty_defined_color (f
, color_name
, ¬_used
, false);
1049 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1050 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1051 FRAME specifies the frame and thus the display for interpreting COLOR.
1052 If FRAME is nil or omitted, use the selected frame. */)
1053 (Lisp_Object color
, Lisp_Object frame
)
1055 CHECK_STRING (color
);
1056 return (face_color_gray_p (decode_any_frame (frame
), SSDATA (color
))
1061 DEFUN ("color-supported-p", Fcolor_supported_p
,
1062 Scolor_supported_p
, 1, 3, 0,
1063 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1064 BACKGROUND-P non-nil means COLOR is used as a background.
1065 Otherwise, this function tells whether it can be used as a foreground.
1066 If FRAME is nil or omitted, use the selected frame.
1067 COLOR must be a valid color name. */)
1068 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1070 CHECK_STRING (color
);
1071 return (face_color_supported_p (decode_any_frame (frame
),
1072 SSDATA (color
), !NILP (background_p
))
1077 static unsigned long
1078 load_color2 (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1079 enum lface_attribute_index target_index
, XColor
*color
)
1081 eassert (STRINGP (name
));
1082 eassert (target_index
== LFACE_FOREGROUND_INDEX
1083 || target_index
== LFACE_BACKGROUND_INDEX
1084 || target_index
== LFACE_UNDERLINE_INDEX
1085 || target_index
== LFACE_OVERLINE_INDEX
1086 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1087 || target_index
== LFACE_BOX_INDEX
);
1089 /* if the color map is full, defined_color will return a best match
1090 to the values in an existing cell. */
1091 if (!defined_color (f
, SSDATA (name
), color
, true))
1093 add_to_log ("Unable to load color \"%s\"", name
);
1095 switch (target_index
)
1097 case LFACE_FOREGROUND_INDEX
:
1098 face
->foreground_defaulted_p
= true;
1099 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1102 case LFACE_BACKGROUND_INDEX
:
1103 face
->background_defaulted_p
= true;
1104 color
->pixel
= FRAME_BACKGROUND_PIXEL (f
);
1107 case LFACE_UNDERLINE_INDEX
:
1108 face
->underline_defaulted_p
= true;
1109 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1112 case LFACE_OVERLINE_INDEX
:
1113 face
->overline_color_defaulted_p
= true;
1114 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1117 case LFACE_STRIKE_THROUGH_INDEX
:
1118 face
->strike_through_color_defaulted_p
= true;
1119 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1122 case LFACE_BOX_INDEX
:
1123 face
->box_color_defaulted_p
= true;
1124 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1133 ++ncolors_allocated
;
1136 return color
->pixel
;
1139 /* Load color with name NAME for use by face FACE on frame F.
1140 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1141 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1142 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1143 pixel color. If color cannot be loaded, display a message, and
1144 return the foreground, background or underline color of F, but
1145 record that fact in flags of the face so that we don't try to free
1149 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1150 enum lface_attribute_index target_index
)
1153 return load_color2 (f
, face
, name
, target_index
, &color
);
1157 #ifdef HAVE_WINDOW_SYSTEM
1159 #define NEAR_SAME_COLOR_THRESHOLD 30000
1161 /* Load colors for face FACE which is used on frame F. Colors are
1162 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1163 of ATTRS. If the background color specified is not supported on F,
1164 try to emulate gray colors with a stipple from Vface_default_stipple. */
1167 load_face_colors (struct frame
*f
, struct face
*face
,
1168 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1170 Lisp_Object fg
, bg
, dfg
;
1173 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1174 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1176 /* Swap colors if face is inverse-video. */
1177 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1185 /* Check for support for foreground, not for background because
1186 face_color_supported_p is smart enough to know that grays are
1187 "supported" as background because we are supposed to use stipple
1189 if (!face_color_supported_p (f
, SSDATA (bg
), false)
1190 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1192 x_destroy_bitmap (f
, face
->stipple
);
1193 face
->stipple
= load_pixmap (f
, Vface_default_stipple
);
1196 face
->background
= load_color2 (f
, face
, bg
, LFACE_BACKGROUND_INDEX
, &xbg
);
1197 face
->foreground
= load_color2 (f
, face
, fg
, LFACE_FOREGROUND_INDEX
, &xfg
);
1199 dfg
= attrs
[LFACE_DISTANT_FOREGROUND_INDEX
];
1200 if (!NILP (dfg
) && !UNSPECIFIEDP (dfg
)
1201 && color_distance (&xbg
, &xfg
) < NEAR_SAME_COLOR_THRESHOLD
)
1203 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1204 face
->background
= load_color (f
, face
, dfg
, LFACE_BACKGROUND_INDEX
);
1206 face
->foreground
= load_color (f
, face
, dfg
, LFACE_FOREGROUND_INDEX
);
1210 #ifdef HAVE_X_WINDOWS
1212 /* Free color PIXEL on frame F. */
1215 unload_color (struct frame
*f
, unsigned long pixel
)
1220 x_free_colors (f
, &pixel
, 1);
1225 /* Free colors allocated for FACE. */
1228 free_face_colors (struct frame
*f
, struct face
*face
)
1230 /* PENDING(NS): need to do something here? */
1232 if (face
->colors_copied_bitwise_p
)
1237 if (!face
->foreground_defaulted_p
)
1239 x_free_colors (f
, &face
->foreground
, 1);
1240 IF_DEBUG (--ncolors_allocated
);
1243 if (!face
->background_defaulted_p
)
1245 x_free_colors (f
, &face
->background
, 1);
1246 IF_DEBUG (--ncolors_allocated
);
1249 if (face
->underline_p
1250 && !face
->underline_defaulted_p
)
1252 x_free_colors (f
, &face
->underline_color
, 1);
1253 IF_DEBUG (--ncolors_allocated
);
1256 if (face
->overline_p
1257 && !face
->overline_color_defaulted_p
)
1259 x_free_colors (f
, &face
->overline_color
, 1);
1260 IF_DEBUG (--ncolors_allocated
);
1263 if (face
->strike_through_p
1264 && !face
->strike_through_color_defaulted_p
)
1266 x_free_colors (f
, &face
->strike_through_color
, 1);
1267 IF_DEBUG (--ncolors_allocated
);
1270 if (face
->box
!= FACE_NO_BOX
1271 && !face
->box_color_defaulted_p
)
1273 x_free_colors (f
, &face
->box_color
, 1);
1274 IF_DEBUG (--ncolors_allocated
);
1280 #endif /* HAVE_X_WINDOWS */
1282 #endif /* HAVE_WINDOW_SYSTEM */
1286 /***********************************************************************
1288 ***********************************************************************/
1290 /* An enumerator for each field of an XLFD font name. */
1311 /* An enumerator for each possible slant value of a font. Taken from
1312 the XLFD specification. */
1320 XLFD_SLANT_REVERSE_ITALIC
,
1321 XLFD_SLANT_REVERSE_OBLIQUE
,
1325 /* Relative font weight according to XLFD documentation. */
1329 XLFD_WEIGHT_UNKNOWN
,
1330 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1331 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1332 XLFD_WEIGHT_LIGHT
, /* 30 */
1333 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1334 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1335 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1336 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1337 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1338 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1341 /* Relative proportionate width. */
1345 XLFD_SWIDTH_UNKNOWN
,
1346 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1347 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1348 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1349 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1350 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1351 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1352 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1353 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1354 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1357 /* Order by which font selection chooses fonts. The default values
1358 mean `first, find a best match for the font width, then for the
1359 font height, then for weight, then for slant.' This variable can be
1360 set via set-face-font-sort-order. */
1362 static int font_sort_order
[4];
1364 #ifdef HAVE_WINDOW_SYSTEM
1366 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1369 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1371 Lisp_Object
const *p1
= v1
;
1372 Lisp_Object
const *p2
= v2
;
1373 Lisp_Object font1
= *p1
;
1374 Lisp_Object font2
= *p2
;
1377 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1379 enum font_property_index idx
= font_props_for_sorting
[i
];
1380 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1383 if (idx
<= FONT_REGISTRY_INDEX
)
1386 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1388 result
= STRINGP (val2
) ? 1 : 0;
1392 if (INTEGERP (val1
))
1393 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1394 ? XINT (val1
) > XINT (val2
)
1397 result
= INTEGERP (val2
) ? 1 : 0;
1405 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1406 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1407 If FAMILY is omitted or nil, list all families.
1408 Otherwise, FAMILY must be a string, possibly containing wildcards
1410 If FRAME is omitted or nil, use the selected frame.
1411 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1412 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1413 FAMILY is the font family name. POINT-SIZE is the size of the
1414 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1415 width, weight and slant of the font. These symbols are the same as for
1416 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1417 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1418 giving the registry and encoding of the font.
1419 The result list is sorted according to the current setting of
1420 the face font sort order. */)
1421 (Lisp_Object family
, Lisp_Object frame
)
1423 Lisp_Object font_spec
, list
, *drivers
, vec
;
1424 struct frame
*f
= decode_live_frame (frame
);
1425 ptrdiff_t i
, nfonts
;
1430 font_spec
= Ffont_spec (0, NULL
);
1433 CHECK_STRING (family
);
1434 font_parse_family_registry (family
, Qnil
, font_spec
);
1437 list
= font_list_entities (f
, font_spec
);
1441 /* Sort the font entities. */
1442 for (i
= 0; i
< 4; i
++)
1443 switch (font_sort_order
[i
])
1446 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1447 case XLFD_POINT_SIZE
:
1448 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1450 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1452 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1454 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1455 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1456 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1457 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1459 ndrivers
= XINT (Flength (list
));
1460 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1461 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1462 drivers
[i
] = XCAR (list
);
1463 vec
= Fvconcat (ndrivers
, drivers
);
1464 nfonts
= ASIZE (vec
);
1466 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1467 compare_fonts_by_sort_order
);
1470 for (i
= nfonts
- 1; i
>= 0; --i
)
1472 Lisp_Object font
= AREF (vec
, i
);
1473 Lisp_Object v
= make_uninit_vector (8);
1475 Lisp_Object spacing
;
1477 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1478 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1479 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1481 ASET (v
, 2, make_number (point
));
1482 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1483 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1484 spacing
= Ffont_get (font
, QCspacing
);
1485 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1486 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1487 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1489 result
= Fcons (v
, result
);
1496 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1497 doc
: /* Return a list of the names of available fonts matching PATTERN.
1498 If optional arguments FACE and FRAME are specified, return only fonts
1499 the same size as FACE on FRAME.
1501 PATTERN should be a string containing a font name in the XLFD,
1502 Fontconfig, or GTK format. A font name given in the XLFD format may
1503 contain wildcard characters:
1504 the * character matches any substring, and
1505 the ? character matches any single character.
1506 PATTERN is case-insensitive.
1508 The return value is a list of strings, suitable as arguments to
1511 Fonts Emacs can't use may or may not be excluded
1512 even if they match PATTERN and FACE.
1513 The optional fourth argument MAXIMUM sets a limit on how many
1514 fonts to match. The first MAXIMUM fonts are reported.
1515 The optional fifth argument WIDTH, if specified, is a number of columns
1516 occupied by a character of a font. In that case, return only fonts
1517 the WIDTH times as wide as FACE on FRAME. */)
1518 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1519 Lisp_Object maximum
, Lisp_Object width
)
1524 check_window_system (NULL
);
1525 CHECK_STRING (pattern
);
1527 if (! NILP (maximum
))
1528 CHECK_NATNUM (maximum
);
1531 CHECK_NUMBER (width
);
1533 /* We can't simply call decode_window_system_frame because
1534 this function may be called before any frame is created. */
1535 f
= decode_live_frame (frame
);
1536 if (! FRAME_WINDOW_P (f
))
1538 /* Perhaps we have not yet created any frame. */
1544 XSETFRAME (frame
, f
);
1546 /* Determine the width standard for comparison with the fonts we find. */
1552 /* This is of limited utility since it works with character
1553 widths. Keep it for compatibility. --gerd. */
1554 int face_id
= lookup_named_face (f
, face
, false);
1555 struct face
*width_face
= FACE_FROM_ID_OR_NULL (f
, face_id
);
1557 if (width_face
&& width_face
->font
)
1559 size
= width_face
->font
->pixel_size
;
1560 avgwidth
= width_face
->font
->average_width
;
1564 size
= FRAME_FONT (f
)->pixel_size
;
1565 avgwidth
= FRAME_FONT (f
)->average_width
;
1568 avgwidth
*= XINT (width
);
1571 Lisp_Object font_spec
= font_spec_from_name (pattern
);
1572 if (!FONTP (font_spec
))
1573 signal_error ("Invalid font name", pattern
);
1577 Ffont_put (font_spec
, QCsize
, make_number (size
));
1578 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1580 Lisp_Object fonts
= Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1581 for (Lisp_Object tail
= fonts
; CONSP (tail
); tail
= XCDR (tail
))
1583 Lisp_Object font_entity
;
1585 font_entity
= XCAR (tail
);
1586 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1587 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1588 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1590 /* This is a scalable font. For backward compatibility,
1591 we set the specified size. */
1592 font_entity
= copy_font_spec (font_entity
);
1593 ASET (font_entity
, FONT_SIZE_INDEX
,
1594 AREF (font_spec
, FONT_SIZE_INDEX
));
1596 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1599 /* We don't have to check fontsets. */
1601 Lisp_Object fontsets
= list_fontsets (f
, pattern
, size
);
1602 return CALLN (Fnconc
, fonts
, fontsets
);
1605 #endif /* HAVE_WINDOW_SYSTEM */
1608 /***********************************************************************
1610 ***********************************************************************/
1612 /* Access face attributes of face LFACE, a Lisp vector. */
1614 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1615 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1616 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1617 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1618 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1619 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1620 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1621 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1622 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1623 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1624 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1625 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1626 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1627 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1628 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1629 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1630 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1631 #define LFACE_DISTANT_FOREGROUND(LFACE) \
1632 AREF ((LFACE), LFACE_DISTANT_FOREGROUND_INDEX)
1634 /* True if LFACE is a Lisp face. A Lisp face is a vector of size
1635 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1637 #define LFACEP(LFACE) \
1639 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1640 && EQ (AREF (LFACE, 0), Qface))
1645 /* Check consistency of Lisp face attribute vector ATTRS. */
1648 check_lface_attrs (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1650 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1651 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1652 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1653 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1654 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1655 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1656 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1657 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1658 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1659 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1660 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1661 || NUMBERP (attrs
[LFACE_HEIGHT_INDEX
])
1662 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1663 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1664 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1665 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1666 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1667 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1668 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1669 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1670 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1671 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1672 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1673 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1674 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1675 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1676 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1677 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1678 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1679 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1680 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1681 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1682 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1683 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1684 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1685 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1686 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1687 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1688 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1689 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1690 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1691 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1692 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1693 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1694 eassert (UNSPECIFIEDP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
1695 || IGNORE_DEFFACE_P (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
1696 || STRINGP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
]));
1697 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1698 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1699 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1700 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1701 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1702 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1703 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1704 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1705 #ifdef HAVE_WINDOW_SYSTEM
1706 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1707 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1708 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1709 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1710 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1711 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1712 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1713 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1714 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1715 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1720 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1723 check_lface (Lisp_Object lface
)
1727 eassert (LFACEP (lface
));
1728 check_lface_attrs (XVECTOR (lface
)->contents
);
1732 #else /* not GLYPH_DEBUG */
1734 #define check_lface_attrs(attrs) (void) 0
1735 #define check_lface(lface) (void) 0
1737 #endif /* GLYPH_DEBUG */
1741 /* Face-merge cycle checking. */
1743 enum named_merge_point_kind
1745 NAMED_MERGE_POINT_NORMAL
,
1746 NAMED_MERGE_POINT_REMAP
1749 /* A `named merge point' is simply a point during face-merging where we
1750 look up a face by name. We keep a stack of which named lookups we're
1751 currently processing so that we can easily detect cycles, using a
1752 linked- list of struct named_merge_point structures, typically
1753 allocated on the stack frame of the named lookup functions which are
1754 active (so no consing is required). */
1755 struct named_merge_point
1757 Lisp_Object face_name
;
1758 enum named_merge_point_kind named_merge_point_kind
;
1759 struct named_merge_point
*prev
;
1763 /* If a face merging cycle is detected for FACE_NAME, return false,
1764 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1765 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1766 pointed to by NAMED_MERGE_POINTS, and return true. */
1769 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1770 Lisp_Object face_name
,
1771 enum named_merge_point_kind named_merge_point_kind
,
1772 struct named_merge_point
**named_merge_points
)
1774 struct named_merge_point
*prev
;
1776 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1777 if (EQ (face_name
, prev
->face_name
))
1779 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1780 /* A cycle, so fail. */
1782 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1783 /* A remap `hides ' any previous normal merge points
1784 (because the remap means that it's actually different face),
1785 so as we know the current merge point must be normal, we
1786 can just assume it's OK. */
1790 new_named_merge_point
->face_name
= face_name
;
1791 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1792 new_named_merge_point
->prev
= *named_merge_points
;
1794 *named_merge_points
= new_named_merge_point
;
1800 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1801 to make it a symbol. If FACE_NAME is an alias for another face,
1802 return that face's name.
1804 Return default face in case of errors. */
1807 resolve_face_name (Lisp_Object face_name
, bool signal_p
)
1809 Lisp_Object orig_face
;
1810 Lisp_Object tortoise
, hare
;
1812 if (STRINGP (face_name
))
1813 face_name
= Fintern (face_name
, Qnil
);
1815 if (NILP (face_name
) || !SYMBOLP (face_name
))
1818 orig_face
= face_name
;
1819 tortoise
= hare
= face_name
;
1824 hare
= Fget (hare
, Qface_alias
);
1825 if (NILP (hare
) || !SYMBOLP (hare
))
1829 hare
= Fget (hare
, Qface_alias
);
1830 if (NILP (hare
) || !SYMBOLP (hare
))
1833 tortoise
= Fget (tortoise
, Qface_alias
);
1834 if (EQ (hare
, tortoise
))
1837 xsignal1 (Qcircular_list
, orig_face
);
1846 /* Return the face definition of FACE_NAME on frame F. F null means
1847 return the definition for new frames. FACE_NAME may be a string or
1848 a symbol (apparently Emacs 20.2 allowed strings as face names in
1849 face text properties; Ediff uses that).
1850 If SIGNAL_P, signal an error if FACE_NAME is not a valid face name.
1851 Otherwise, value is nil if FACE_NAME is not a valid face name. */
1853 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
1859 lface
= assq_no_quit (face_name
, f
->face_alist
);
1861 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
1864 lface
= XCDR (lface
);
1866 signal_error ("Invalid face", face_name
);
1868 check_lface (lface
);
1873 /* Return the face definition of FACE_NAME on frame F. F null means
1874 return the definition for new frames. FACE_NAME may be a string or
1875 a symbol (apparently Emacs 20.2 allowed strings as face names in
1876 face text properties; Ediff uses that). If FACE_NAME is an alias
1877 for another face, return that face's definition.
1878 If SIGNAL_P, signal an error if FACE_NAME is not a valid face name.
1879 Otherwise, value is nil if FACE_NAME is not a valid face name. */
1881 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, bool signal_p
)
1883 face_name
= resolve_face_name (face_name
, signal_p
);
1884 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1888 /* Get face attributes of face FACE_NAME from frame-local faces on
1889 frame F. Store the resulting attributes in ATTRS which must point
1890 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE.
1891 If SIGNAL_P, signal an error if FACE_NAME does not name a face.
1892 Otherwise, return true iff FACE_NAME is a face. */
1895 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
1896 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
1901 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1904 memcpy (attrs
, XVECTOR (lface
)->contents
,
1905 LFACE_VECTOR_SIZE
* sizeof *attrs
);
1907 return !NILP (lface
);
1910 /* Get face attributes of face FACE_NAME from frame-local faces on frame
1911 F. Store the resulting attributes in ATTRS which must point to a
1912 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
1913 alias for another face, use that face's definition.
1914 If SIGNAL_P, signal an error if FACE_NAME does not name a face.
1915 Otherwise, return true iff FACE_NAME is a face. */
1918 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
1919 Lisp_Object attrs
[LFACE_VECTOR_SIZE
], bool signal_p
,
1920 struct named_merge_point
*named_merge_points
)
1922 Lisp_Object face_remapping
;
1924 face_name
= resolve_face_name (face_name
, signal_p
);
1926 /* See if SYMBOL has been remapped to some other face (usually this
1927 is done buffer-locally). */
1928 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
1929 if (CONSP (face_remapping
))
1931 struct named_merge_point named_merge_point
;
1933 if (push_named_merge_point (&named_merge_point
,
1934 face_name
, NAMED_MERGE_POINT_REMAP
,
1935 &named_merge_points
))
1939 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
1940 attrs
[i
] = Qunspecified
;
1942 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
1943 signal_p
, named_merge_points
);
1947 /* Default case, no remapping. */
1948 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
1952 /* True iff all attributes in face attribute vector ATTRS are
1953 specified, i.e. are non-nil. */
1956 lface_fully_specified_p (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1960 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
1961 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
1962 && i
!= LFACE_DISTANT_FOREGROUND_INDEX
)
1963 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
1966 return i
== LFACE_VECTOR_SIZE
;
1969 #ifdef HAVE_WINDOW_SYSTEM
1971 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
1972 If FORCE_P, set only unspecified attributes of LFACE. The
1973 exception is `font' attribute. It is set to FONT_OBJECT regardless
1977 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
1978 Lisp_Object font_object
, bool force_p
)
1981 struct font
*font
= XFONT_OBJECT (font_object
);
1983 /* Set attributes only if unspecified, otherwise face defaults for
1984 new frames would never take effect. If the font doesn't have a
1985 specific property, set a normal value for that. */
1987 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
1989 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
1991 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
1994 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
1996 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
1998 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2001 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2003 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, FRAME_RES_Y (f
));
2006 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2009 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2011 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2012 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2014 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2016 val
= FONT_SLANT_FOR_FACE (font_object
);
2017 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2019 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2021 val
= FONT_WIDTH_FOR_FACE (font_object
);
2022 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2025 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2028 #endif /* HAVE_WINDOW_SYSTEM */
2031 /* Merges the face height FROM with the face height TO, and returns the
2032 merged height. If FROM is an invalid height, then INVALID is
2033 returned instead. FROM and TO may be either absolute face heights or
2034 `relative' heights; the returned value is always an absolute height
2035 unless both FROM and TO are relative. */
2038 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2040 Lisp_Object result
= invalid
;
2042 if (INTEGERP (from
))
2043 /* FROM is absolute, just use it as is. */
2045 else if (FLOATP (from
))
2046 /* FROM is a scale, use it to adjust TO. */
2049 /* relative X absolute => absolute */
2050 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2051 else if (FLOATP (to
))
2052 /* relative X relative => relative */
2053 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2054 else if (UNSPECIFIEDP (to
))
2057 else if (FUNCTIONP (from
))
2058 /* FROM is a function, which use to adjust TO. */
2060 /* Call function with current height as argument.
2061 From is the new height. */
2062 result
= safe_call1 (from
, to
);
2064 /* Ensure that if TO was absolute, so is the result. */
2065 if (INTEGERP (to
) && !INTEGERP (result
))
2073 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2074 store the resulting attributes in TO, which must be already be
2075 completely specified and contain only absolute attributes. Every
2076 specified attribute of FROM overrides the corresponding attribute of
2077 TO; relative attributes in FROM are merged with the absolute value in
2078 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2079 loops in face inheritance/remapping; it should be 0 when called from
2083 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2084 struct named_merge_point
*named_merge_points
)
2087 Lisp_Object font
= Qnil
;
2089 /* If FROM inherits from some other faces, merge their attributes into
2090 TO before merging FROM's direct attributes. Note that an :inherit
2091 attribute of `unspecified' is the same as one of nil; we never
2092 merge :inherit attributes, so nil is more correct, but lots of
2093 other code uses `unspecified' as a generic value for face attributes. */
2094 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2095 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2096 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, false, named_merge_points
);
2098 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2100 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2101 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2103 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2104 to
[LFACE_FONT_INDEX
] = font
;
2107 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2108 if (!UNSPECIFIEDP (from
[i
]))
2110 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2112 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2113 font_clear_prop (to
, FONT_SIZE_INDEX
);
2115 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2118 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2119 font_clear_prop (to
,
2120 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2121 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2122 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2123 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2124 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2125 : FONT_SLANT_INDEX
));
2129 /* If FROM specifies a font spec, make its contents take precedence
2130 over :family and other attributes. This is needed for face
2131 remapping using :font to work. */
2135 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2136 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2137 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2138 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2139 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2140 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2141 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2142 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2143 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2144 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2145 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2148 /* TO is always an absolute face, which should inherit from nothing.
2149 We blindly copy the :inherit attribute above and fix it up here. */
2150 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2153 /* Merge the named face FACE_NAME on frame F, into the vector of face
2154 attributes TO. Use NAMED_MERGE_POINTS to detect loops in face
2155 inheritance. Return true if FACE_NAME is a valid face name and
2156 merging succeeded. */
2159 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2160 struct named_merge_point
*named_merge_points
)
2162 struct named_merge_point named_merge_point
;
2164 if (push_named_merge_point (&named_merge_point
,
2165 face_name
, NAMED_MERGE_POINT_NORMAL
,
2166 &named_merge_points
))
2168 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2169 bool ok
= get_lface_attributes (f
, face_name
, from
, false,
2170 named_merge_points
);
2173 merge_face_vectors (f
, from
, to
, named_merge_points
);
2182 /* Merge face attributes from the lisp `face reference' FACE_REF on
2183 frame F into the face attribute vector TO. If ERR_MSGS,
2184 problems with FACE_REF cause an error message to be shown. Return
2185 true if no errors occurred (regardless of the value of ERR_MSGS).
2186 Use NAMED_MERGE_POINTS to detect loops in face inheritance or
2187 list structure; it may be 0 for most callers.
2189 FACE_REF may be a single face specification or a list of such
2190 specifications. Each face specification can be:
2192 1. A symbol or string naming a Lisp face.
2194 2. A property list of the form (KEYWORD VALUE ...) where each
2195 KEYWORD is a face attribute name, and value is an appropriate value
2198 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2199 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2200 for compatibility with 20.2.
2202 Face specifications earlier in lists take precedence over later
2206 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2207 bool err_msgs
, struct named_merge_point
*named_merge_points
)
2209 bool ok
= true; /* Succeed without an error? */
2211 if (CONSP (face_ref
))
2213 Lisp_Object first
= XCAR (face_ref
);
2215 if (EQ (first
, Qforeground_color
)
2216 || EQ (first
, Qbackground_color
))
2218 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2219 . COLOR). COLOR must be a string. */
2220 Lisp_Object color_name
= XCDR (face_ref
);
2221 Lisp_Object color
= first
;
2223 if (STRINGP (color_name
))
2225 if (EQ (color
, Qforeground_color
))
2226 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2228 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2233 add_to_log ("Invalid face color %S", color_name
);
2237 else if (SYMBOLP (first
)
2238 && *SDATA (SYMBOL_NAME (first
)) == ':')
2240 /* Assume this is the property list form. */
2241 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2243 Lisp_Object keyword
= XCAR (face_ref
);
2244 Lisp_Object value
= XCAR (XCDR (face_ref
));
2247 /* Specifying `unspecified' is a no-op. */
2248 if (EQ (value
, Qunspecified
))
2250 else if (EQ (keyword
, QCfamily
))
2252 if (STRINGP (value
))
2254 to
[LFACE_FAMILY_INDEX
] = value
;
2255 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2260 else if (EQ (keyword
, QCfoundry
))
2262 if (STRINGP (value
))
2264 to
[LFACE_FOUNDRY_INDEX
] = value
;
2265 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2270 else if (EQ (keyword
, QCheight
))
2272 Lisp_Object new_height
=
2273 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2275 if (! NILP (new_height
))
2277 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2278 font_clear_prop (to
, FONT_SIZE_INDEX
);
2283 else if (EQ (keyword
, QCweight
))
2285 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2287 to
[LFACE_WEIGHT_INDEX
] = value
;
2288 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2293 else if (EQ (keyword
, QCslant
))
2295 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2297 to
[LFACE_SLANT_INDEX
] = value
;
2298 font_clear_prop (to
, FONT_SLANT_INDEX
);
2303 else if (EQ (keyword
, QCunderline
))
2309 to
[LFACE_UNDERLINE_INDEX
] = value
;
2313 else if (EQ (keyword
, QCoverline
))
2318 to
[LFACE_OVERLINE_INDEX
] = value
;
2322 else if (EQ (keyword
, QCstrike_through
))
2327 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2331 else if (EQ (keyword
, QCbox
))
2334 value
= make_number (1);
2335 if (INTEGERP (value
)
2339 to
[LFACE_BOX_INDEX
] = value
;
2343 else if (EQ (keyword
, QCinverse_video
)
2344 || EQ (keyword
, QCreverse_video
))
2346 if (EQ (value
, Qt
) || NILP (value
))
2347 to
[LFACE_INVERSE_INDEX
] = value
;
2351 else if (EQ (keyword
, QCforeground
))
2353 if (STRINGP (value
))
2354 to
[LFACE_FOREGROUND_INDEX
] = value
;
2358 else if (EQ (keyword
, QCdistant_foreground
))
2360 if (STRINGP (value
))
2361 to
[LFACE_DISTANT_FOREGROUND_INDEX
] = value
;
2365 else if (EQ (keyword
, QCbackground
))
2367 if (STRINGP (value
))
2368 to
[LFACE_BACKGROUND_INDEX
] = value
;
2372 else if (EQ (keyword
, QCstipple
))
2374 #if defined (HAVE_WINDOW_SYSTEM)
2375 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2376 if (!NILP (pixmap_p
))
2377 to
[LFACE_STIPPLE_INDEX
] = value
;
2380 #endif /* HAVE_WINDOW_SYSTEM */
2382 else if (EQ (keyword
, QCwidth
))
2384 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2386 to
[LFACE_SWIDTH_INDEX
] = value
;
2387 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2392 else if (EQ (keyword
, QCfont
))
2395 to
[LFACE_FONT_INDEX
] = value
;
2399 else if (EQ (keyword
, QCinherit
))
2401 /* This is not really very useful; it's just like a
2402 normal face reference. */
2403 if (! merge_face_ref (f
, value
, to
,
2404 err_msgs
, named_merge_points
))
2412 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2416 face_ref
= XCDR (XCDR (face_ref
));
2421 /* This is a list of face refs. Those at the beginning of the
2422 list take precedence over what follows, so we have to merge
2423 from the end backwards. */
2424 Lisp_Object next
= XCDR (face_ref
);
2427 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2429 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2435 /* FACE_REF ought to be a face name. */
2436 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2437 if (!ok
&& err_msgs
)
2438 add_to_log ("Invalid face reference: %s", face_ref
);
2445 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2446 Sinternal_make_lisp_face
, 1, 2, 0,
2447 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2448 If FACE was not known as a face before, create a new one.
2449 If optional argument FRAME is specified, make a frame-local face
2450 for that frame. Otherwise operate on the global face definition.
2451 Value is a vector of face attributes. */)
2452 (Lisp_Object face
, Lisp_Object frame
)
2454 Lisp_Object global_lface
, lface
;
2458 CHECK_SYMBOL (face
);
2459 global_lface
= lface_from_face_name (NULL
, face
, false);
2463 CHECK_LIVE_FRAME (frame
);
2465 lface
= lface_from_face_name (f
, face
, false);
2468 f
= NULL
, lface
= Qnil
;
2470 /* Add a global definition if there is none. */
2471 if (NILP (global_lface
))
2473 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2475 ASET (global_lface
, 0, Qface
);
2476 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2477 Vface_new_frame_defaults
);
2479 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2480 face id to Lisp face is given by the vector lface_id_to_name.
2481 The mapping from Lisp face to Lisp face id is given by the
2482 property `face' of the Lisp face name. */
2483 if (next_lface_id
== lface_id_to_name_size
)
2485 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2486 sizeof *lface_id_to_name
);
2488 lface_id_to_name
[next_lface_id
] = face
;
2489 Fput (face
, Qface
, make_number (next_lface_id
));
2493 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2494 ASET (global_lface
, i
, Qunspecified
);
2496 /* Add a frame-local definition. */
2501 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2503 ASET (lface
, 0, Qface
);
2504 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2507 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2508 ASET (lface
, i
, Qunspecified
);
2511 lface
= global_lface
;
2513 /* Changing a named face means that all realized faces depending on
2514 that face are invalid. Since we cannot tell which realized faces
2515 depend on the face, make sure they are all removed. This is done
2516 by setting face_change. The next call to init_iterator will then
2517 free realized faces. */
2518 if (NILP (Fget (face
, Qface_no_inherit
)))
2522 f
->face_change
= true;
2528 windows_or_buffers_changed
= 54;
2532 eassert (LFACEP (lface
));
2533 check_lface (lface
);
2538 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2539 Sinternal_lisp_face_p
, 1, 2, 0,
2540 doc
: /* Return non-nil if FACE names a face.
2541 FACE should be a symbol or string.
2542 If optional second argument FRAME is non-nil, check for the
2543 existence of a frame-local face with name FACE on that frame.
2544 Otherwise check for the existence of a global face. */)
2545 (Lisp_Object face
, Lisp_Object frame
)
2549 face
= resolve_face_name (face
, true);
2553 CHECK_LIVE_FRAME (frame
);
2554 lface
= lface_from_face_name (XFRAME (frame
), face
, false);
2557 lface
= lface_from_face_name (NULL
, face
, false);
2563 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2564 Sinternal_copy_lisp_face
, 4, 4, 0,
2565 doc
: /* Copy face FROM to TO.
2566 If FRAME is t, copy the global face definition of FROM.
2567 Otherwise, copy the frame-local definition of FROM on FRAME.
2568 If NEW-FRAME is a frame, copy that data into the frame-local
2569 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2570 FRAME controls where the data is copied to.
2572 The value is TO. */)
2573 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2575 Lisp_Object lface
, copy
;
2578 CHECK_SYMBOL (from
);
2583 /* Copy global definition of FROM. We don't make copies of
2584 strings etc. because 20.2 didn't do it either. */
2585 lface
= lface_from_face_name (NULL
, from
, true);
2586 copy
= Finternal_make_lisp_face (to
, Qnil
);
2591 /* Copy frame-local definition of FROM. */
2592 if (NILP (new_frame
))
2594 CHECK_LIVE_FRAME (frame
);
2595 CHECK_LIVE_FRAME (new_frame
);
2596 lface
= lface_from_face_name (XFRAME (frame
), from
, true);
2597 copy
= Finternal_make_lisp_face (to
, new_frame
);
2598 f
= XFRAME (new_frame
);
2601 vcopy (copy
, 0, XVECTOR (lface
)->contents
, LFACE_VECTOR_SIZE
);
2603 /* Changing a named face means that all realized faces depending on
2604 that face are invalid. Since we cannot tell which realized faces
2605 depend on the face, make sure they are all removed. This is done
2606 by setting face_change. The next call to init_iterator will then
2607 free realized faces. */
2608 if (NILP (Fget (to
, Qface_no_inherit
)))
2612 f
->face_change
= true;
2618 windows_or_buffers_changed
= 55;
2626 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2627 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2628 doc
: /* Set attribute ATTR of FACE to VALUE.
2629 FRAME being a frame means change the face on that frame.
2630 FRAME nil means change the face of the selected frame.
2631 FRAME t means change the default for new frames.
2632 FRAME 0 means change the face on all frames, and change the default
2634 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2637 Lisp_Object old_value
= Qnil
;
2638 /* Set one of enum font_property_index (> 0) if ATTR is one of
2639 font-related attributes other than QCfont and QCfontset. */
2640 enum font_property_index prop_index
= 0;
2643 CHECK_SYMBOL (face
);
2644 CHECK_SYMBOL (attr
);
2646 face
= resolve_face_name (face
, true);
2648 /* If FRAME is 0, change face on all frames, and change the
2649 default for new frames. */
2650 if (INTEGERP (frame
) && XINT (frame
) == 0)
2653 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2654 FOR_EACH_FRAME (tail
, frame
)
2655 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2659 /* Set lface to the Lisp attribute vector of FACE. */
2663 lface
= lface_from_face_name (NULL
, face
, true);
2665 /* When updating face-new-frame-defaults, we put :ignore-defface
2666 where the caller wants `unspecified'. This forces the frame
2667 defaults to ignore the defface value. Otherwise, the defface
2668 will take effect, which is generally not what is intended.
2669 The value of that attribute will be inherited from some other
2670 face during face merging. See internal_merge_in_global_face. */
2671 if (UNSPECIFIEDP (value
))
2672 value
= QCignore_defface
;
2677 frame
= selected_frame
;
2679 CHECK_LIVE_FRAME (frame
);
2682 lface
= lface_from_face_name (f
, face
, false);
2684 /* If a frame-local face doesn't exist yet, create one. */
2686 lface
= Finternal_make_lisp_face (face
, frame
);
2689 if (EQ (attr
, QCfamily
))
2691 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2693 CHECK_STRING (value
);
2694 if (SCHARS (value
) == 0)
2695 signal_error ("Invalid face family", value
);
2697 old_value
= LFACE_FAMILY (lface
);
2698 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2699 prop_index
= FONT_FAMILY_INDEX
;
2701 else if (EQ (attr
, QCfoundry
))
2703 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2705 CHECK_STRING (value
);
2706 if (SCHARS (value
) == 0)
2707 signal_error ("Invalid face foundry", value
);
2709 old_value
= LFACE_FOUNDRY (lface
);
2710 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2711 prop_index
= FONT_FOUNDRY_INDEX
;
2713 else if (EQ (attr
, QCheight
))
2715 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2717 if (EQ (face
, Qdefault
))
2719 /* The default face must have an absolute size. */
2720 if (!INTEGERP (value
) || XINT (value
) <= 0)
2721 signal_error ("Default face height not absolute and positive",
2726 /* For non-default faces, do a test merge with a random
2727 height to see if VALUE's ok. */
2728 Lisp_Object test
= merge_face_heights (value
,
2731 if (!INTEGERP (test
) || XINT (test
) <= 0)
2732 signal_error ("Face height does not produce a positive integer",
2737 old_value
= LFACE_HEIGHT (lface
);
2738 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2739 prop_index
= FONT_SIZE_INDEX
;
2741 else if (EQ (attr
, QCweight
))
2743 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2745 CHECK_SYMBOL (value
);
2746 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2747 signal_error ("Invalid face weight", value
);
2749 old_value
= LFACE_WEIGHT (lface
);
2750 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2751 prop_index
= FONT_WEIGHT_INDEX
;
2753 else if (EQ (attr
, QCslant
))
2755 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2757 CHECK_SYMBOL (value
);
2758 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2759 signal_error ("Invalid face slant", value
);
2761 old_value
= LFACE_SLANT (lface
);
2762 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2763 prop_index
= FONT_SLANT_INDEX
;
2765 else if (EQ (attr
, QCunderline
))
2767 bool valid_p
= false;
2769 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2771 else if (NILP (value
) || EQ (value
, Qt
))
2773 else if (STRINGP (value
) && SCHARS (value
) > 0)
2775 else if (CONSP (value
))
2777 Lisp_Object key
, val
, list
;
2780 /* FIXME? This errs on the side of acceptance. Eg it accepts:
2781 (defface foo '((t :underline 'foo) "doc")
2782 Maybe this is intentional, maybe it isn't.
2783 Non-nil symbols other than t are not documented as being valid.
2784 Eg compare with inverse-video, which explicitly rejects them.
2788 while (!NILP (CAR_SAFE(list
)))
2790 key
= CAR_SAFE (list
);
2791 list
= CDR_SAFE (list
);
2792 val
= CAR_SAFE (list
);
2793 list
= CDR_SAFE (list
);
2795 if (NILP (key
) || NILP (val
))
2801 else if (EQ (key
, QCcolor
)
2802 && !(EQ (val
, Qforeground_color
)
2803 || (STRINGP (val
) && SCHARS (val
) > 0)))
2809 else if (EQ (key
, QCstyle
)
2810 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2819 signal_error ("Invalid face underline", value
);
2821 old_value
= LFACE_UNDERLINE (lface
);
2822 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2824 else if (EQ (attr
, QCoverline
))
2826 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2827 if ((SYMBOLP (value
)
2829 && !EQ (value
, Qnil
))
2830 /* Overline color. */
2832 && SCHARS (value
) == 0))
2833 signal_error ("Invalid face overline", value
);
2835 old_value
= LFACE_OVERLINE (lface
);
2836 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2838 else if (EQ (attr
, QCstrike_through
))
2840 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2841 if ((SYMBOLP (value
)
2843 && !EQ (value
, Qnil
))
2844 /* Strike-through color. */
2846 && SCHARS (value
) == 0))
2847 signal_error ("Invalid face strike-through", value
);
2849 old_value
= LFACE_STRIKE_THROUGH (lface
);
2850 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2852 else if (EQ (attr
, QCbox
))
2856 /* Allow t meaning a simple box of width 1 in foreground color
2859 value
= make_number (1);
2861 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2863 else if (NILP (value
))
2865 else if (INTEGERP (value
))
2866 valid_p
= XINT (value
) != 0;
2867 else if (STRINGP (value
))
2868 valid_p
= SCHARS (value
) > 0;
2869 else if (CONSP (value
))
2885 if (EQ (k
, QCline_width
))
2887 if (!INTEGERP (v
) || XINT (v
) == 0)
2890 else if (EQ (k
, QCcolor
))
2892 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
2895 else if (EQ (k
, QCstyle
))
2897 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
2904 valid_p
= NILP (tem
);
2910 signal_error ("Invalid face box", value
);
2912 old_value
= LFACE_BOX (lface
);
2913 ASET (lface
, LFACE_BOX_INDEX
, value
);
2915 else if (EQ (attr
, QCinverse_video
)
2916 || EQ (attr
, QCreverse_video
))
2918 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2920 CHECK_SYMBOL (value
);
2921 if (!EQ (value
, Qt
) && !NILP (value
))
2922 signal_error ("Invalid inverse-video face attribute value", value
);
2924 old_value
= LFACE_INVERSE (lface
);
2925 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
2927 else if (EQ (attr
, QCforeground
))
2929 /* Compatibility with 20.x. */
2931 value
= Qunspecified
;
2932 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2934 /* Don't check for valid color names here because it depends
2935 on the frame (display) whether the color will be valid
2936 when the face is realized. */
2937 CHECK_STRING (value
);
2938 if (SCHARS (value
) == 0)
2939 signal_error ("Empty foreground color value", value
);
2941 old_value
= LFACE_FOREGROUND (lface
);
2942 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
2944 else if (EQ (attr
, QCdistant_foreground
))
2946 /* Compatibility with 20.x. */
2948 value
= Qunspecified
;
2949 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2951 /* Don't check for valid color names here because it depends
2952 on the frame (display) whether the color will be valid
2953 when the face is realized. */
2954 CHECK_STRING (value
);
2955 if (SCHARS (value
) == 0)
2956 signal_error ("Empty distant-foreground color value", value
);
2958 old_value
= LFACE_DISTANT_FOREGROUND (lface
);
2959 ASET (lface
, LFACE_DISTANT_FOREGROUND_INDEX
, value
);
2961 else if (EQ (attr
, QCbackground
))
2963 /* Compatibility with 20.x. */
2965 value
= Qunspecified
;
2966 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2968 /* Don't check for valid color names here because it depends
2969 on the frame (display) whether the color will be valid
2970 when the face is realized. */
2971 CHECK_STRING (value
);
2972 if (SCHARS (value
) == 0)
2973 signal_error ("Empty background color value", value
);
2975 old_value
= LFACE_BACKGROUND (lface
);
2976 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
2978 else if (EQ (attr
, QCstipple
))
2980 #if defined (HAVE_WINDOW_SYSTEM)
2981 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
2983 && NILP (Fbitmap_spec_p (value
)))
2984 signal_error ("Invalid stipple attribute", value
);
2985 old_value
= LFACE_STIPPLE (lface
);
2986 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
2987 #endif /* HAVE_WINDOW_SYSTEM */
2989 else if (EQ (attr
, QCwidth
))
2991 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2993 CHECK_SYMBOL (value
);
2994 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
2995 signal_error ("Invalid face width", value
);
2997 old_value
= LFACE_SWIDTH (lface
);
2998 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
2999 prop_index
= FONT_WIDTH_INDEX
;
3001 else if (EQ (attr
, QCfont
))
3003 #ifdef HAVE_WINDOW_SYSTEM
3004 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (f
))
3006 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3010 old_value
= LFACE_FONT (lface
);
3011 if (! FONTP (value
))
3013 if (STRINGP (value
))
3015 Lisp_Object name
= value
;
3016 int fontset
= fs_query_fontset (name
, 0);
3019 name
= fontset_ascii (fontset
);
3020 value
= font_spec_from_name (name
);
3022 signal_error ("Invalid font name", name
);
3025 signal_error ("Invalid font or font-spec", value
);
3028 f1
= XFRAME (selected_frame
);
3030 f1
= XFRAME (frame
);
3033 If frame is t, and selected frame is a tty frame, the font
3034 can't be realized. An improvement would be to loop over frames
3035 for a non-tty frame and use that. See discussion in Bug#18573.
3036 For a daemon, frame may be an initial frame (Bug#18869). */
3037 if (FRAME_WINDOW_P (f1
))
3039 if (! FONT_OBJECT_P (value
))
3041 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3042 Lisp_Object font_object
;
3044 font_object
= font_load_for_lface (f1
, attrs
, value
);
3045 if (NILP (font_object
))
3046 signal_error ("Font not available", value
);
3047 value
= font_object
;
3049 set_lface_from_font (f1
, lface
, value
, true);
3050 f1
->face_change
= 1;
3054 ASET (lface
, LFACE_FONT_INDEX
, value
);
3056 #endif /* HAVE_WINDOW_SYSTEM */
3058 else if (EQ (attr
, QCfontset
))
3060 #ifdef HAVE_WINDOW_SYSTEM
3061 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (f
))
3065 old_value
= LFACE_FONTSET (lface
);
3066 tmp
= Fquery_fontset (value
, Qnil
);
3068 signal_error ("Invalid fontset name", value
);
3069 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3071 #endif /* HAVE_WINDOW_SYSTEM */
3073 else if (EQ (attr
, QCinherit
))
3076 if (SYMBOLP (value
))
3079 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3080 if (!SYMBOLP (XCAR (tail
)))
3083 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3085 signal_error ("Invalid face inheritance", value
);
3087 else if (EQ (attr
, QCbold
))
3089 old_value
= LFACE_WEIGHT (lface
);
3090 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3091 prop_index
= FONT_WEIGHT_INDEX
;
3093 else if (EQ (attr
, QCitalic
))
3096 old_value
= LFACE_SLANT (lface
);
3097 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3098 prop_index
= FONT_SLANT_INDEX
;
3101 signal_error ("Invalid face attribute name", attr
);
3105 /* If a font-related attribute other than QCfont and QCfontset
3106 is specified, and if the original QCfont attribute has a font
3107 (font-spec or font-object), set the corresponding property in
3108 the font to nil so that the font selector doesn't think that
3109 the attribute is mandatory. Also, clear the average
3111 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3114 /* Changing a named face means that all realized faces depending on
3115 that face are invalid. Since we cannot tell which realized faces
3116 depend on the face, make sure they are all removed. This is done
3117 by setting face_change. The next call to init_iterator will then
3118 free realized faces. */
3120 && NILP (Fget (face
, Qface_no_inherit
))
3121 && NILP (Fequal (old_value
, value
)))
3123 f
->face_change
= true;
3127 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3128 && NILP (Fequal (old_value
, value
)))
3134 if (EQ (face
, Qdefault
))
3136 #ifdef HAVE_WINDOW_SYSTEM
3137 /* Changed font-related attributes of the `default' face are
3138 reflected in changed `font' frame parameters. */
3140 && (prop_index
|| EQ (attr
, QCfont
))
3141 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3142 set_font_frame_param (frame
, lface
);
3144 #endif /* HAVE_WINDOW_SYSTEM */
3146 if (EQ (attr
, QCforeground
))
3147 param
= Qforeground_color
;
3148 else if (EQ (attr
, QCbackground
))
3149 param
= Qbackground_color
;
3151 #ifdef HAVE_WINDOW_SYSTEM
3153 else if (EQ (face
, Qscroll_bar
))
3155 /* Changing the colors of `scroll-bar' sets frame parameters
3156 `scroll-bar-foreground' and `scroll-bar-background'. */
3157 if (EQ (attr
, QCforeground
))
3158 param
= Qscroll_bar_foreground
;
3159 else if (EQ (attr
, QCbackground
))
3160 param
= Qscroll_bar_background
;
3162 #endif /* not HAVE_NTGUI */
3163 else if (EQ (face
, Qborder
))
3165 /* Changing background color of `border' sets frame parameter
3167 if (EQ (attr
, QCbackground
))
3168 param
= Qborder_color
;
3170 else if (EQ (face
, Qcursor
))
3172 /* Changing background color of `cursor' sets frame parameter
3174 if (EQ (attr
, QCbackground
))
3175 param
= Qcursor_color
;
3177 else if (EQ (face
, Qmouse
))
3179 /* Changing background color of `mouse' sets frame parameter
3181 if (EQ (attr
, QCbackground
))
3182 param
= Qmouse_color
;
3184 #endif /* HAVE_WINDOW_SYSTEM */
3185 else if (EQ (face
, Qmenu
))
3187 /* Indicate that we have to update the menu bar when realizing
3188 faces on FRAME. FRAME t change the default for new frames.
3189 We do this by setting the flag in new face caches. */
3192 struct frame
*f
= XFRAME (frame
);
3193 if (FRAME_FACE_CACHE (f
) == NULL
)
3194 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3195 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= true;
3198 menu_face_changed_default
= true;
3204 /* Update `default-frame-alist', which is used for new frames. */
3206 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3209 /* Update the current frame's parameters. */
3212 cons
= XCAR (Vparam_value_alist
);
3213 XSETCAR (cons
, param
);
3214 XSETCDR (cons
, value
);
3215 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3224 /* Update the corresponding face when frame parameter PARAM on frame F
3225 has been assigned the value NEW_VALUE. */
3228 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3229 Lisp_Object new_value
)
3231 Lisp_Object face
= Qnil
;
3234 /* If there are no faces yet, give up. This is the case when called
3235 from Fx_create_frame, and we do the necessary things later in
3236 face-set-after-frame-defaults. */
3237 if (NILP (f
->face_alist
))
3240 if (EQ (param
, Qforeground_color
))
3243 lface
= lface_from_face_name (f
, face
, true);
3244 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3245 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3246 realize_basic_faces (f
);
3248 else if (EQ (param
, Qbackground_color
))
3252 /* Changing the background color might change the background
3253 mode, so that we have to load new defface specs.
3254 Call frame-set-background-mode to do that. */
3255 XSETFRAME (frame
, f
);
3256 call1 (Qframe_set_background_mode
, frame
);
3259 lface
= lface_from_face_name (f
, face
, true);
3260 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3261 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3262 realize_basic_faces (f
);
3264 #ifdef HAVE_WINDOW_SYSTEM
3265 else if (EQ (param
, Qborder_color
))
3268 lface
= lface_from_face_name (f
, face
, true);
3269 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3270 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3272 else if (EQ (param
, Qcursor_color
))
3275 lface
= lface_from_face_name (f
, face
, true);
3276 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3277 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3279 else if (EQ (param
, Qmouse_color
))
3282 lface
= lface_from_face_name (f
, face
, true);
3283 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3284 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3288 /* Changing a named face means that all realized faces depending on
3289 that face are invalid. Since we cannot tell which realized faces
3290 depend on the face, make sure they are all removed. This is done
3291 by setting face_change. The next call to init_iterator will then
3292 free realized faces. */
3294 && NILP (Fget (face
, Qface_no_inherit
)))
3296 f
->face_change
= true;
3302 #ifdef HAVE_WINDOW_SYSTEM
3304 /* Set the `font' frame parameter of FRAME determined from the
3305 font-object set in `default' face attributes LFACE. */
3308 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3310 struct frame
*f
= XFRAME (frame
);
3313 if (FRAME_WINDOW_P (f
)
3314 /* Don't do anything if the font is `unspecified'. This can
3315 happen during frame creation. */
3316 && (font
= LFACE_FONT (lface
),
3317 ! UNSPECIFIEDP (font
)))
3319 if (FONT_SPEC_P (font
))
3321 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3324 ASET (lface
, LFACE_FONT_INDEX
, font
);
3326 f
->default_face_done_p
= false;
3327 AUTO_FRAME_ARG (arg
, Qfont
, font
);
3328 Fmodify_frame_parameters (frame
, arg
);
3332 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3333 Sinternal_face_x_get_resource
, 2, 3, 0,
3334 doc
: /* Get the value of X resource RESOURCE, class CLASS.
3335 Returned value is for the display of frame FRAME. If FRAME is not
3336 specified or nil, use selected frame. This function exists because
3337 ordinary `x-get-resource' doesn't take a frame argument. */)
3338 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3340 Lisp_Object value
= Qnil
;
3343 CHECK_STRING (resource
);
3344 CHECK_STRING (class);
3345 f
= decode_live_frame (frame
);
3347 value
= display_x_get_resource (FRAME_DISPLAY_INFO (f
),
3348 resource
, class, Qnil
, Qnil
);
3354 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3355 If VALUE is "on" or "true", return t. If VALUE is "off" or
3356 "false", return nil. Otherwise, if SIGNAL_P, signal an
3357 error; if !SIGNAL_P, return 0. */
3360 face_boolean_x_resource_value (Lisp_Object value
, bool signal_p
)
3362 Lisp_Object result
= make_number (0);
3364 eassert (STRINGP (value
));
3366 if (xstrcasecmp (SSDATA (value
), "on") == 0
3367 || xstrcasecmp (SSDATA (value
), "true") == 0)
3369 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3370 || xstrcasecmp (SSDATA (value
), "false") == 0)
3372 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3373 result
= Qunspecified
;
3375 signal_error ("Invalid face attribute value from X resource", value
);
3381 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3382 Finternal_set_lisp_face_attribute_from_resource
,
3383 Sinternal_set_lisp_face_attribute_from_resource
,
3384 3, 4, 0, doc
: /* */)
3385 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3387 CHECK_SYMBOL (face
);
3388 CHECK_SYMBOL (attr
);
3389 CHECK_STRING (value
);
3391 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3392 value
= Qunspecified
;
3393 else if (EQ (attr
, QCheight
))
3395 value
= Fstring_to_number (value
, make_number (10));
3396 if (XINT (value
) <= 0)
3397 signal_error ("Invalid face height from X resource", value
);
3399 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3400 value
= face_boolean_x_resource_value (value
, true);
3401 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3402 value
= intern (SSDATA (value
));
3403 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3404 value
= face_boolean_x_resource_value (value
, true);
3405 else if (EQ (attr
, QCunderline
)
3406 || EQ (attr
, QCoverline
)
3407 || EQ (attr
, QCstrike_through
))
3409 Lisp_Object boolean_value
;
3411 /* If the result of face_boolean_x_resource_value is t or nil,
3412 VALUE does NOT specify a color. */
3413 boolean_value
= face_boolean_x_resource_value (value
, false);
3414 if (SYMBOLP (boolean_value
))
3415 value
= boolean_value
;
3417 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3418 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3420 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3423 #endif /* HAVE_WINDOW_SYSTEM */
3426 /***********************************************************************
3428 ***********************************************************************/
3430 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3432 /* Make menus on frame F appear as specified by the `menu' face. */
3435 x_update_menu_appearance (struct frame
*f
)
3437 struct x_display_info
*dpyinfo
= FRAME_DISPLAY_INFO (f
);
3441 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3446 ptrdiff_t bufsize
= sizeof line
;
3447 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, true);
3448 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3449 const char *myname
= SSDATA (Vx_resource_name
);
3450 bool changed_p
= false;
3452 const char *popup_path
= "popup_menu";
3454 const char *popup_path
= "menu.popup";
3457 if (STRINGP (LFACE_FOREGROUND (lface
)))
3459 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3461 SDATA (LFACE_FOREGROUND (lface
)));
3462 XrmPutLineResource (&rdb
, line
);
3463 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3464 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3465 XrmPutLineResource (&rdb
, line
);
3469 if (STRINGP (LFACE_BACKGROUND (lface
)))
3471 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3473 SDATA (LFACE_BACKGROUND (lface
)));
3474 XrmPutLineResource (&rdb
, line
);
3476 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3477 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3478 XrmPutLineResource (&rdb
, line
);
3483 /* On Solaris 5.8, it's been reported that the `menu' face
3484 can be unspecified here, during startup. Why this
3485 happens remains unknown. -- cyd */
3486 && FONTP (LFACE_FONT (lface
))
3487 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3488 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3489 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3490 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3491 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3492 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3494 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3496 const char *suffix
= "List";
3499 #if defined HAVE_X_I18N
3501 const char *suffix
= "Set";
3503 const char *suffix
= "";
3510 #if defined HAVE_X_I18N
3511 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3513 char *fontsetname
= SSDATA (xlfd
);
3515 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3516 myname
, suffix
, fontsetname
);
3517 XrmPutLineResource (&rdb
, line
);
3519 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3520 myname
, popup_path
, suffix
, fontsetname
);
3521 XrmPutLineResource (&rdb
, line
);
3523 if (fontsetname
!= SSDATA (xlfd
))
3524 xfree (fontsetname
);
3528 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3529 free_frame_menubar (f
);
3536 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3539 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3540 Sface_attribute_relative_p
,
3542 doc
: /* Check whether a face attribute value is relative.
3543 Specifically, this function returns t if the attribute ATTRIBUTE
3544 with the value VALUE is relative.
3546 A relative value is one that doesn't entirely override whatever is
3547 inherited from another face. For most possible attributes,
3548 the only relative value that users see is `unspecified'.
3549 However, for :height, floating point values are also relative. */
3551 (Lisp_Object attribute
, Lisp_Object value
)
3553 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3555 else if (EQ (attribute
, QCheight
))
3556 return INTEGERP (value
) ? Qnil
: Qt
;
3561 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3563 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3564 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3565 the result will be absolute, otherwise it will be relative. */)
3566 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3568 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3570 else if (EQ (attribute
, QCheight
))
3571 return merge_face_heights (value1
, value2
, value1
);
3577 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3578 Sinternal_get_lisp_face_attribute
,
3580 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3581 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3582 face attribute name, signal an error.
3583 If the optional argument FRAME is given, report on face SYMBOL in that
3584 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3585 frames). If FRAME is omitted or nil, use the selected frame. */)
3586 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3588 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3589 Lisp_Object lface
= lface_from_face_name (f
, symbol
, true), value
= Qnil
;
3591 CHECK_SYMBOL (symbol
);
3592 CHECK_SYMBOL (keyword
);
3594 if (EQ (keyword
, QCfamily
))
3595 value
= LFACE_FAMILY (lface
);
3596 else if (EQ (keyword
, QCfoundry
))
3597 value
= LFACE_FOUNDRY (lface
);
3598 else if (EQ (keyword
, QCheight
))
3599 value
= LFACE_HEIGHT (lface
);
3600 else if (EQ (keyword
, QCweight
))
3601 value
= LFACE_WEIGHT (lface
);
3602 else if (EQ (keyword
, QCslant
))
3603 value
= LFACE_SLANT (lface
);
3604 else if (EQ (keyword
, QCunderline
))
3605 value
= LFACE_UNDERLINE (lface
);
3606 else if (EQ (keyword
, QCoverline
))
3607 value
= LFACE_OVERLINE (lface
);
3608 else if (EQ (keyword
, QCstrike_through
))
3609 value
= LFACE_STRIKE_THROUGH (lface
);
3610 else if (EQ (keyword
, QCbox
))
3611 value
= LFACE_BOX (lface
);
3612 else if (EQ (keyword
, QCinverse_video
)
3613 || EQ (keyword
, QCreverse_video
))
3614 value
= LFACE_INVERSE (lface
);
3615 else if (EQ (keyword
, QCforeground
))
3616 value
= LFACE_FOREGROUND (lface
);
3617 else if (EQ (keyword
, QCdistant_foreground
))
3618 value
= LFACE_DISTANT_FOREGROUND (lface
);
3619 else if (EQ (keyword
, QCbackground
))
3620 value
= LFACE_BACKGROUND (lface
);
3621 else if (EQ (keyword
, QCstipple
))
3622 value
= LFACE_STIPPLE (lface
);
3623 else if (EQ (keyword
, QCwidth
))
3624 value
= LFACE_SWIDTH (lface
);
3625 else if (EQ (keyword
, QCinherit
))
3626 value
= LFACE_INHERIT (lface
);
3627 else if (EQ (keyword
, QCfont
))
3628 value
= LFACE_FONT (lface
);
3629 else if (EQ (keyword
, QCfontset
))
3630 value
= LFACE_FONTSET (lface
);
3632 signal_error ("Invalid face attribute name", keyword
);
3634 if (IGNORE_DEFFACE_P (value
))
3635 return Qunspecified
;
3641 DEFUN ("internal-lisp-face-attribute-values",
3642 Finternal_lisp_face_attribute_values
,
3643 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3644 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3645 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3648 Lisp_Object result
= Qnil
;
3650 CHECK_SYMBOL (attr
);
3652 if (EQ (attr
, QCunderline
) || EQ (attr
, QCoverline
)
3653 || EQ (attr
, QCstrike_through
)
3654 || EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3655 result
= list2 (Qt
, Qnil
);
3661 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3662 Sinternal_merge_in_global_face
, 2, 2, 0,
3663 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3664 Default face attributes override any local face attributes. */)
3665 (Lisp_Object face
, Lisp_Object frame
)
3668 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3669 struct frame
*f
= XFRAME (frame
);
3671 CHECK_LIVE_FRAME (frame
);
3672 global_lface
= lface_from_face_name (NULL
, face
, true);
3673 local_lface
= lface_from_face_name (f
, face
, false);
3674 if (NILP (local_lface
))
3675 local_lface
= Finternal_make_lisp_face (face
, frame
);
3677 /* Make every specified global attribute override the local one.
3678 BEWARE!! This is only used from `face-set-after-frame-default' where
3679 the local frame is defined from default specs in `face-defface-spec'
3680 and those should be overridden by global settings. Hence the strange
3681 "global before local" priority. */
3682 lvec
= XVECTOR (local_lface
)->contents
;
3683 gvec
= XVECTOR (global_lface
)->contents
;
3684 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3685 if (IGNORE_DEFFACE_P (gvec
[i
]))
3686 ASET (local_lface
, i
, Qunspecified
);
3687 else if (! UNSPECIFIEDP (gvec
[i
]))
3688 ASET (local_lface
, i
, AREF (global_lface
, i
));
3690 /* If the default face was changed, update the face cache and the
3691 `font' frame parameter. */
3692 if (EQ (face
, Qdefault
))
3694 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3695 struct face
*newface
, *oldface
= FACE_FROM_ID_OR_NULL (f
, DEFAULT_FACE_ID
);
3696 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3698 /* This can be NULL (e.g., in batch mode). */
3701 /* Ensure that the face vector is fully specified by merging
3702 the previously-cached vector. */
3703 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3704 merge_face_vectors (f
, lvec
, attrs
, 0);
3705 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3706 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3708 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3709 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3710 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3711 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3712 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3713 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3714 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3717 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3718 AUTO_FRAME_ARG (arg
, Qfont
, name
);
3719 Fmodify_frame_parameters (frame
, arg
);
3722 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3724 AUTO_FRAME_ARG (arg
, Qforeground_color
,
3725 gvec
[LFACE_FOREGROUND_INDEX
]);
3726 Fmodify_frame_parameters (frame
, arg
);
3729 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3731 AUTO_FRAME_ARG (arg
, Qbackground_color
,
3732 gvec
[LFACE_BACKGROUND_INDEX
]);
3733 Fmodify_frame_parameters (frame
, arg
);
3742 /* The following function is implemented for compatibility with 20.2.
3743 The function is used in x-resolve-fonts when it is asked to
3744 return fonts with the same size as the font of a face. This is
3745 done in fontset.el. */
3747 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3748 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3749 The font name is, by default, for ASCII characters.
3750 If the optional argument FRAME is given, report on face FACE in that frame.
3751 If FRAME is t, report on the defaults for face FACE (for new frames).
3752 The font default for a face is either nil, or a list
3753 of the form (bold), (italic) or (bold italic).
3754 If FRAME is omitted or nil, use the selected frame. And, in this case,
3755 if the optional third argument CHARACTER is given,
3756 return the font name used for CHARACTER. */)
3757 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3761 Lisp_Object result
= Qnil
;
3762 Lisp_Object lface
= lface_from_face_name (NULL
, face
, true);
3764 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3765 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3766 result
= Fcons (Qbold
, result
);
3768 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3769 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3770 result
= Fcons (Qitalic
, result
);
3776 struct frame
*f
= decode_live_frame (frame
);
3777 int face_id
= lookup_named_face (f
, face
, true);
3778 struct face
*fface
= FACE_FROM_ID_OR_NULL (f
, face_id
);
3782 #ifdef HAVE_WINDOW_SYSTEM
3783 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3785 CHECK_CHARACTER (character
);
3786 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3787 fface
= FACE_FROM_ID_OR_NULL (f
, face_id
);
3789 return ((fface
&& fface
->font
)
3790 ? fface
->font
->props
[FONT_NAME_INDEX
]
3792 #else /* !HAVE_WINDOW_SYSTEM */
3793 return build_string (FRAME_MSDOS_P (f
)
3795 : FRAME_W32_P (f
) ? "w32term"
3802 /* Compare face-attribute values v1 and v2 for equality. Value is true if
3803 all attributes are `equal'. Tries to be fast because this function
3804 is called quite often. */
3807 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3809 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3810 and the other is specified. */
3811 if (XTYPE (v1
) != XTYPE (v2
))
3820 if (SBYTES (v1
) != SBYTES (v2
))
3823 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3830 return !NILP (Fequal (v1
, v2
));
3835 /* Compare face vectors V1 and V2 for equality. Value is true if
3836 all attributes are `equal'. Tries to be fast because this function
3837 is called quite often. */
3840 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3843 bool equal_p
= true;
3845 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3846 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3852 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3853 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3854 doc
: /* True if FACE1 and FACE2 are equal.
3855 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3856 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3857 If FRAME is omitted or nil, use the selected frame. */)
3858 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3862 Lisp_Object lface1
, lface2
;
3864 /* Don't use decode_window_system_frame here because this function
3865 is called before X frames exist. At that time, if FRAME is nil,
3866 selected_frame will be used which is the frame dumped with
3867 Emacs. That frame is not an X frame. */
3868 f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3870 lface1
= lface_from_face_name (f
, face1
, true);
3871 lface2
= lface_from_face_name (f
, face2
, true);
3872 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3873 XVECTOR (lface2
)->contents
);
3874 return equal_p
? Qt
: Qnil
;
3878 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3879 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3880 doc
: /* True if FACE has no attribute specified.
3881 If the optional argument FRAME is given, report on face FACE in that frame.
3882 If FRAME is t, report on the defaults for face FACE (for new frames).
3883 If FRAME is omitted or nil, use the selected frame. */)
3884 (Lisp_Object face
, Lisp_Object frame
)
3886 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3887 Lisp_Object lface
= lface_from_face_name (f
, face
, true);
3890 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3891 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3894 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3898 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
3900 doc
: /* Return an alist of frame-local faces defined on FRAME.
3901 For internal use only. */)
3904 return decode_live_frame (frame
)->face_alist
;
3908 /* Return a hash code for Lisp string STRING with case ignored. Used
3909 below in computing a hash value for a Lisp face. */
3912 hash_string_case_insensitive (Lisp_Object string
)
3914 const unsigned char *s
;
3916 eassert (STRINGP (string
));
3917 for (s
= SDATA (string
); *s
; ++s
)
3918 hash
= (hash
<< 1) ^ c_tolower (*s
);
3923 /* Return a hash code for face attribute vector V. */
3926 lface_hash (Lisp_Object
*v
)
3928 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
3929 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
3930 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
3931 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
3932 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
3933 ^ XHASH (v
[LFACE_SLANT_INDEX
])
3934 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
3935 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
3938 #ifdef HAVE_WINDOW_SYSTEM
3940 /* Return true if LFACE1 and LFACE2 specify the same font (without
3941 considering charsets/registries). They do if they specify the same
3942 family, point size, weight, width, slant, and font. Both
3943 LFACE1 and LFACE2 must be fully-specified. */
3946 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
3948 eassert (lface_fully_specified_p (lface1
)
3949 && lface_fully_specified_p (lface2
));
3950 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
3951 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
3952 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
3953 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
3954 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
3955 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
3956 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
3957 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
3958 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
3959 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
3960 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
3961 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
3962 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
3963 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
3967 #endif /* HAVE_WINDOW_SYSTEM */
3969 /***********************************************************************
3971 ***********************************************************************/
3973 /* Allocate and return a new realized face for Lisp face attribute
3976 static struct face
*
3977 make_realized_face (Lisp_Object
*attr
)
3979 enum { off
= offsetof (struct face
, id
) };
3980 struct face
*face
= xmalloc (sizeof *face
);
3982 memcpy (face
->lface
, attr
, sizeof face
->lface
);
3983 memset (&face
->id
, 0, sizeof *face
- off
);
3984 face
->ascii_face
= face
;
3990 /* Free realized face FACE, including its X resources. FACE may
3994 free_realized_face (struct frame
*f
, struct face
*face
)
3998 #ifdef HAVE_WINDOW_SYSTEM
3999 if (FRAME_WINDOW_P (f
))
4001 /* Free fontset of FACE if it is ASCII face. */
4002 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4003 free_face_fontset (f
, face
);
4008 font_done_for_face (f
, face
);
4009 x_free_gc (f
, face
->gc
);
4013 #ifdef HAVE_X_WINDOWS
4014 free_face_colors (f
, face
);
4015 #endif /* HAVE_X_WINDOWS */
4016 x_destroy_bitmap (f
, face
->stipple
);
4018 #endif /* HAVE_WINDOW_SYSTEM */
4024 #ifdef HAVE_WINDOW_SYSTEM
4026 /* Prepare face FACE for subsequent display on frame F. This must be called
4027 before using X resources of FACE to allocate GCs if they haven't been
4028 allocated yet or have been freed by clearing the face cache. */
4031 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4033 eassert (FRAME_WINDOW_P (f
));
4038 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4040 xgcv
.foreground
= face
->foreground
;
4041 xgcv
.background
= face
->background
;
4042 #ifdef HAVE_X_WINDOWS
4043 xgcv
.graphics_exposures
= False
;
4047 #ifdef HAVE_X_WINDOWS
4050 xgcv
.fill_style
= FillOpaqueStippled
;
4051 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4052 mask
|= GCFillStyle
| GCStipple
;
4055 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4057 font_prepare_for_face (f
, face
);
4062 #endif /* HAVE_WINDOW_SYSTEM */
4064 /* Returns the `distance' between the colors X and Y. */
4067 color_distance (XColor
*x
, XColor
*y
)
4069 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4070 Quoting from that paper:
4072 This formula has results that are very close to L*u*v* (with the
4073 modified lightness curve) and, more importantly, it is a more even
4074 algorithm: it does not have a range of colors where it suddenly
4075 gives far from optimal results.
4077 See <http://www.compuphase.com/cmetric.htm> for more info. */
4079 long r
= (x
->red
- y
->red
) >> 8;
4080 long g
= (x
->green
- y
->green
) >> 8;
4081 long b
= (x
->blue
- y
->blue
) >> 8;
4082 long r_mean
= (x
->red
+ y
->red
) >> 9;
4085 (((512 + r_mean
) * r
* r
) >> 8)
4087 + (((767 - r_mean
) * b
* b
) >> 8);
4091 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4092 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4093 COLOR1 and COLOR2 may be either strings containing the color name,
4094 or lists of the form (RED GREEN BLUE).
4095 If FRAME is unspecified or nil, the current frame is used. */)
4096 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4098 struct frame
*f
= decode_live_frame (frame
);
4099 XColor cdef1
, cdef2
;
4101 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4102 && !(STRINGP (color1
)
4103 && defined_color (f
, SSDATA (color1
), &cdef1
, false)))
4104 signal_error ("Invalid color", color1
);
4105 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4106 && !(STRINGP (color2
)
4107 && defined_color (f
, SSDATA (color2
), &cdef2
, false)))
4108 signal_error ("Invalid color", color2
);
4110 return make_number (color_distance (&cdef1
, &cdef2
));
4114 /***********************************************************************
4116 ***********************************************************************/
4118 /* Return a new face cache for frame F. */
4120 static struct face_cache
*
4121 make_face_cache (struct frame
*f
)
4123 struct face_cache
*c
= xmalloc (sizeof *c
);
4125 c
->buckets
= xzalloc (FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
);
4128 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4130 c
->menu_face_changed_p
= menu_face_changed_default
;
4134 #ifdef HAVE_WINDOW_SYSTEM
4136 /* Clear out all graphics contexts for all realized faces, except for
4137 the basic faces. This should be done from time to time just to avoid
4138 keeping too many graphics contexts that are no longer needed. */
4141 clear_face_gcs (struct face_cache
*c
)
4143 if (c
&& FRAME_WINDOW_P (c
->f
))
4146 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4148 struct face
*face
= c
->faces_by_id
[i
];
4149 if (face
&& face
->gc
)
4153 font_done_for_face (c
->f
, face
);
4154 x_free_gc (c
->f
, face
->gc
);
4162 #endif /* HAVE_WINDOW_SYSTEM */
4164 /* Free all realized faces in face cache C, including basic faces.
4165 C may be null. If faces are freed, make sure the frame's current
4166 matrix is marked invalid, so that a display caused by an expose
4167 event doesn't try to use faces we destroyed. */
4170 free_realized_faces (struct face_cache
*c
)
4175 struct frame
*f
= c
->f
;
4177 /* We must block input here because we can't process X events
4178 safely while only some faces are freed, or when the frame's
4179 current matrix still references freed faces. */
4182 for (i
= 0; i
< c
->used
; ++i
)
4184 free_realized_face (f
, c
->faces_by_id
[i
]);
4185 c
->faces_by_id
[i
] = NULL
;
4188 /* Forget the escape-glyph and glyphless-char faces. */
4189 forget_escape_and_glyphless_faces ();
4191 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4192 memset (c
->buckets
, 0, size
);
4194 /* Must do a thorough redisplay the next time. Mark current
4195 matrices as invalid because they will reference faces freed
4196 above. This function is also called when a frame is
4197 destroyed. In this case, the root window of F is nil. */
4198 if (WINDOWP (f
->root_window
))
4200 clear_current_matrices (f
);
4209 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4210 This is done after attributes of a named face have been changed,
4211 because we can't tell which realized faces depend on that face. */
4214 free_all_realized_faces (Lisp_Object frame
)
4219 FOR_EACH_FRAME (rest
, frame
)
4220 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4221 windows_or_buffers_changed
= 58;
4224 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4228 /* Free face cache C and faces in it, including their X resources. */
4231 free_face_cache (struct face_cache
*c
)
4235 free_realized_faces (c
);
4237 xfree (c
->faces_by_id
);
4243 /* Cache realized face FACE in face cache C. HASH is the hash value
4244 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4245 FACE), insert the new face to the beginning of the collision list
4246 of the face hash table of C. Otherwise, add the new face to the
4247 end of the collision list. This way, lookup_face can quickly find
4248 that a requested face is not cached. */
4251 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4253 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4257 if (face
->ascii_face
!= face
)
4259 struct face
*last
= c
->buckets
[i
];
4270 c
->buckets
[i
] = face
;
4271 face
->prev
= face
->next
= NULL
;
4277 face
->next
= c
->buckets
[i
];
4279 face
->next
->prev
= face
;
4280 c
->buckets
[i
] = face
;
4283 /* Find a free slot in C->faces_by_id and use the index of the free
4284 slot as FACE->id. */
4285 for (i
= 0; i
< c
->used
; ++i
)
4286 if (c
->faces_by_id
[i
] == NULL
)
4291 /* Check that FACE got a unique id. */
4296 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4297 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4303 #endif /* GLYPH_DEBUG */
4305 /* Maybe enlarge C->faces_by_id. */
4308 if (c
->used
== c
->size
)
4309 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4310 sizeof *c
->faces_by_id
);
4314 c
->faces_by_id
[i
] = face
;
4318 /* Remove face FACE from cache C. */
4321 uncache_face (struct face_cache
*c
, struct face
*face
)
4323 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4326 face
->prev
->next
= face
->next
;
4328 c
->buckets
[i
] = face
->next
;
4331 face
->next
->prev
= face
->prev
;
4333 c
->faces_by_id
[face
->id
] = NULL
;
4334 if (face
->id
== c
->used
)
4339 /* Look up a realized face with face attributes ATTR in the face cache
4340 of frame F. The face will be used to display ASCII characters.
4341 Value is the ID of the face found. If no suitable face is found,
4342 realize a new one. */
4345 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4347 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4352 eassert (cache
!= NULL
);
4353 check_lface_attrs (attr
);
4355 /* Look up ATTR in the face cache. */
4356 hash
= lface_hash (attr
);
4357 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4359 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4361 if (face
->ascii_face
!= face
)
4363 /* There's no more ASCII face. */
4367 if (face
->hash
== hash
4368 && lface_equal_p (face
->lface
, attr
))
4372 /* If not found, realize a new face. */
4374 face
= realize_face (cache
, attr
, -1);
4377 eassert (face
== FACE_FROM_ID_OR_NULL (f
, face
->id
));
4378 #endif /* GLYPH_DEBUG */
4383 #ifdef HAVE_WINDOW_SYSTEM
4384 /* Look up a realized face that has the same attributes as BASE_FACE
4385 except for the font in the face cache of frame F. If FONT-OBJECT
4386 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4387 the face has no font. Value is the ID of the face found. If no
4388 suitable face is found, realize a new one. */
4391 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4393 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4398 eassert (cache
!= NULL
);
4399 base_face
= base_face
->ascii_face
;
4400 hash
= lface_hash (base_face
->lface
);
4401 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4403 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4405 if (face
->ascii_face
== face
)
4407 if (face
->ascii_face
== base_face
4408 && face
->font
== (NILP (font_object
) ? NULL
4409 : XFONT_OBJECT (font_object
))
4410 && lface_equal_p (face
->lface
, base_face
->lface
))
4414 /* If not found, realize a new face. */
4415 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4418 #endif /* HAVE_WINDOW_SYSTEM */
4420 /* Return the face id of the realized face for named face SYMBOL on
4421 frame F suitable for displaying ASCII characters. Value is -1 if
4422 the face couldn't be determined, which might happen if the default
4423 face isn't realized and cannot be realized. */
4426 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, bool signal_p
)
4428 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4429 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4430 struct face
*default_face
= FACE_FROM_ID_OR_NULL (f
, DEFAULT_FACE_ID
);
4432 if (default_face
== NULL
)
4434 if (!realize_basic_faces (f
))
4436 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4439 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4442 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4443 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4445 return lookup_face (f
, attrs
);
4449 /* Return the display face-id of the basic face whose canonical face-id
4450 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4451 basic face has bee remapped via Vface_remapping_alist. This function is
4452 conservative: if something goes wrong, it will simply return FACE_ID
4453 rather than signal an error. */
4456 lookup_basic_face (struct frame
*f
, int face_id
)
4458 Lisp_Object name
, mapping
;
4459 int remapped_face_id
;
4461 if (NILP (Vface_remapping_alist
))
4462 return face_id
; /* Nothing to do. */
4466 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4467 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4468 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4469 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4470 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4471 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4472 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4473 case BORDER_FACE_ID
: name
= Qborder
; break;
4474 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4475 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4476 case MENU_FACE_ID
: name
= Qmenu
; break;
4479 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4482 /* Do a quick scan through Vface_remapping_alist, and return immediately
4483 if there is no remapping for face NAME. This is just an optimization
4484 for the very common no-remapping case. */
4485 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4487 return face_id
; /* Give up. */
4489 /* If there is a remapping entry, lookup the face using NAME, which will
4490 handle the remapping too. */
4491 remapped_face_id
= lookup_named_face (f
, name
, false);
4492 if (remapped_face_id
< 0)
4493 return face_id
; /* Give up. */
4495 return remapped_face_id
;
4499 /* Return a face for charset ASCII that is like the face with id
4500 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4501 STEPS < 0 means larger. Value is the id of the face. */
4504 smaller_face (struct frame
*f
, int face_id
, int steps
)
4506 #ifdef HAVE_WINDOW_SYSTEM
4508 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4509 int pt
, last_pt
, last_height
;
4512 struct face
*new_face
;
4514 /* If not called for an X frame, just return the original face. */
4515 if (FRAME_TERMCAP_P (f
))
4518 /* Try in increments of 1/2 pt. */
4519 delta
= steps
< 0 ? 5 : -5;
4520 steps
= eabs (steps
);
4522 face
= FACE_FROM_ID (f
, face_id
);
4523 memcpy (attrs
, face
->lface
, sizeof attrs
);
4524 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4525 new_face_id
= face_id
;
4526 last_height
= FONT_HEIGHT (face
->font
);
4530 /* Give up if we cannot find a font within 10pt. */
4531 && eabs (last_pt
- pt
) < 100)
4533 /* Look up a face for a slightly smaller/larger font. */
4535 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4536 new_face_id
= lookup_face (f
, attrs
);
4537 new_face
= FACE_FROM_ID (f
, new_face_id
);
4539 /* If height changes, count that as one step. */
4540 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4541 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4544 last_height
= FONT_HEIGHT (new_face
->font
);
4551 #else /* not HAVE_WINDOW_SYSTEM */
4555 #endif /* not HAVE_WINDOW_SYSTEM */
4559 /* Return a face for charset ASCII that is like the face with id
4560 FACE_ID on frame F, but has height HEIGHT. */
4563 face_with_height (struct frame
*f
, int face_id
, int height
)
4565 #ifdef HAVE_WINDOW_SYSTEM
4567 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4569 if (FRAME_TERMCAP_P (f
)
4573 face
= FACE_FROM_ID (f
, face_id
);
4574 memcpy (attrs
, face
->lface
, sizeof attrs
);
4575 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4576 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4577 face_id
= lookup_face (f
, attrs
);
4578 #endif /* HAVE_WINDOW_SYSTEM */
4584 /* Return the face id of the realized face for named face SYMBOL on
4585 frame F suitable for displaying ASCII characters, and use
4586 attributes of the face FACE_ID for attributes that aren't
4587 completely specified by SYMBOL. This is like lookup_named_face,
4588 except that the default attributes come from FACE_ID, not from the
4589 default face. FACE_ID is assumed to be already realized. */
4592 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4595 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4596 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4597 struct face
*default_face
;
4599 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4602 default_face
= FACE_FROM_ID (f
, face_id
);
4603 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4604 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4605 return lookup_face (f
, attrs
);
4608 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4609 Sface_attributes_as_vector
, 1, 1, 0,
4610 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4614 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4616 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4623 /***********************************************************************
4624 Face capability testing
4625 ***********************************************************************/
4628 /* If the distance (as returned by color_distance) between two colors is
4629 less than this, then they are considered the same, for determining
4630 whether a color is supported or not. The range of values is 0-65535. */
4632 #define TTY_SAME_COLOR_THRESHOLD 10000
4634 #ifdef HAVE_WINDOW_SYSTEM
4636 /* Return true if all the face attributes in ATTRS are supported
4637 on the window-system frame F.
4639 The definition of `supported' is somewhat heuristic, but basically means
4640 that a face containing all the attributes in ATTRS, when merged with the
4641 default face for display, can be represented in a way that's
4643 (1) different in appearance than the default face, and
4644 (2) `close in spirit' to what the attributes specify, if not exact. */
4647 x_supports_face_attributes_p (struct frame
*f
,
4648 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4649 struct face
*def_face
)
4651 Lisp_Object
*def_attrs
= def_face
->lface
;
4653 /* Check that other specified attributes are different that the default
4655 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4656 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4657 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4658 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4659 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4660 def_attrs
[LFACE_INVERSE_INDEX
]))
4661 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4662 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4663 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4664 || (!UNSPECIFIEDP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
4665 && face_attr_equal_p (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
],
4666 def_attrs
[LFACE_DISTANT_FOREGROUND_INDEX
]))
4667 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4668 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4669 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4670 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4671 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4672 def_attrs
[LFACE_STIPPLE_INDEX
]))
4673 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4674 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4675 def_attrs
[LFACE_OVERLINE_INDEX
]))
4676 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4677 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4678 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4679 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4680 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4681 def_attrs
[LFACE_BOX_INDEX
])))
4684 /* Check font-related attributes, as those are the most commonly
4685 "unsupported" on a window-system (because of missing fonts). */
4686 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4687 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4688 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4689 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4690 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4691 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4695 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4698 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4700 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4702 face_id
= lookup_face (f
, merged_attrs
);
4703 face
= FACE_FROM_ID_OR_NULL (f
, face_id
);
4706 error ("Cannot make face");
4708 /* If the font is the same, or no font is found, then not
4710 if (face
->font
== def_face
->font
4713 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4714 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4718 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4719 || face
->font
->driver
->case_sensitive
)
4721 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4722 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4723 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4724 s2
, make_number (0), Qnil
, Qt
), Qt
))
4730 /* Everything checks out, this face is supported. */
4734 #endif /* HAVE_WINDOW_SYSTEM */
4736 /* Return true if all the face attributes in ATTRS are supported
4739 The definition of `supported' is somewhat heuristic, but basically means
4740 that a face containing all the attributes in ATTRS, when merged
4741 with the default face for display, can be represented in a way that's
4743 (1) different in appearance than the default face, and
4744 (2) `close in spirit' to what the attributes specify, if not exact.
4746 Point (2) implies that a `:weight black' attribute will be satisfied
4747 by any terminal that can display bold, and a `:foreground "yellow"' as
4748 long as the terminal can display a yellowish color, but `:slant italic'
4749 will _not_ be satisfied by the tty display code's automatic
4750 substitution of a `dim' face for italic. */
4753 tty_supports_face_attributes_p (struct frame
*f
,
4754 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4755 struct face
*def_face
)
4758 Lisp_Object val
, fg
, bg
;
4759 XColor fg_tty_color
, fg_std_color
;
4760 XColor bg_tty_color
, bg_std_color
;
4761 unsigned test_caps
= 0;
4762 Lisp_Object
*def_attrs
= def_face
->lface
;
4764 /* First check some easy-to-check stuff; ttys support none of the
4765 following attributes, so we can just return false if any are requested
4766 (even if `nominal' values are specified, we should still return false,
4767 as that will be the same value that the default face uses). We
4768 consider :slant unsupportable on ttys, even though the face code
4769 actually `fakes' them using a dim attribute if possible. This is
4770 because the faked result is too different from what the face
4772 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4773 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4774 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4775 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4776 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4777 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4778 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4779 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4782 /* Test for terminal `capabilities' (non-color character attributes). */
4784 /* font weight (bold/dim) */
4785 val
= attrs
[LFACE_WEIGHT_INDEX
];
4786 if (!UNSPECIFIEDP (val
)
4787 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4789 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4793 if (def_weight
> 100)
4794 return false; /* same as default */
4795 test_caps
= TTY_CAP_BOLD
;
4797 else if (weight
< 100)
4799 if (def_weight
< 100)
4800 return false; /* same as default */
4801 test_caps
= TTY_CAP_DIM
;
4803 else if (def_weight
== 100)
4804 return false; /* same as default */
4808 val
= attrs
[LFACE_SLANT_INDEX
];
4809 if (!UNSPECIFIEDP (val
)
4810 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4812 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4813 if (slant
== 100 || slant
== def_slant
)
4814 return false; /* same as default */
4816 test_caps
|= TTY_CAP_ITALIC
;
4820 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4821 if (!UNSPECIFIEDP (val
))
4824 return false; /* ttys can't use colored underlines */
4825 else if (EQ (CAR_SAFE (val
), QCstyle
) && EQ (CAR_SAFE (CDR_SAFE (val
)), Qwave
))
4826 return false; /* ttys can't use wave underlines */
4827 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4828 return false; /* same as default */
4830 test_caps
|= TTY_CAP_UNDERLINE
;
4834 val
= attrs
[LFACE_INVERSE_INDEX
];
4835 if (!UNSPECIFIEDP (val
))
4837 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4838 return false; /* same as default */
4840 test_caps
|= TTY_CAP_INVERSE
;
4844 /* Color testing. */
4846 /* Check if foreground color is close enough. */
4847 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4850 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4852 if (face_attr_equal_p (fg
, def_fg
))
4853 return false; /* same as default */
4854 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4855 return false; /* not a valid color */
4856 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4857 > TTY_SAME_COLOR_THRESHOLD
)
4858 return false; /* displayed color is too different */
4860 /* Make sure the color is really different than the default. */
4862 XColor def_fg_color
;
4863 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4864 && (color_distance (&fg_tty_color
, &def_fg_color
)
4865 <= TTY_SAME_COLOR_THRESHOLD
))
4870 /* Check if background color is close enough. */
4871 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4874 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4876 if (face_attr_equal_p (bg
, def_bg
))
4877 return false; /* same as default */
4878 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4879 return false; /* not a valid color */
4880 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4881 > TTY_SAME_COLOR_THRESHOLD
)
4882 return false; /* displayed color is too different */
4884 /* Make sure the color is really different than the default. */
4886 XColor def_bg_color
;
4887 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4888 && (color_distance (&bg_tty_color
, &def_bg_color
)
4889 <= TTY_SAME_COLOR_THRESHOLD
))
4894 /* If both foreground and background are requested, see if the
4895 distance between them is OK. We just check to see if the distance
4896 between the tty's foreground and background is close enough to the
4897 distance between the standard foreground and background. */
4898 if (STRINGP (fg
) && STRINGP (bg
))
4901 = (color_distance (&fg_std_color
, &bg_std_color
)
4902 - color_distance (&fg_tty_color
, &bg_tty_color
));
4903 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
4904 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
4909 /* See if the capabilities we selected above are supported, with the
4911 return tty_capable_p (FRAME_TTY (f
), test_caps
);
4915 DEFUN ("display-supports-face-attributes-p",
4916 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
4918 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
4919 The optional argument DISPLAY can be a display name, a frame, or
4920 nil (meaning the selected frame's display).
4922 The definition of `supported' is somewhat heuristic, but basically means
4923 that a face containing all the attributes in ATTRIBUTES, when merged
4924 with the default face for display, can be represented in a way that's
4926 (1) different in appearance than the default face, and
4927 (2) `close in spirit' to what the attributes specify, if not exact.
4929 Point (2) implies that a `:weight black' attribute will be satisfied by
4930 any display that can display bold, and a `:foreground \"yellow\"' as long
4931 as it can display a yellowish color, but `:slant italic' will _not_ be
4932 satisfied by the tty display code's automatic substitution of a `dim'
4933 face for italic. */)
4934 (Lisp_Object attributes
, Lisp_Object display
)
4936 bool supports
= false;
4940 struct face
*def_face
;
4941 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4943 if (noninteractive
|| !initialized
)
4944 /* We may not be able to access low-level face information in batch
4945 mode, or before being dumped, and this function is not going to
4946 be very useful in those cases anyway, so just give up. */
4950 frame
= selected_frame
;
4951 else if (FRAMEP (display
))
4955 /* Find any frame on DISPLAY. */
4959 FOR_EACH_FRAME (tail
, frame
)
4960 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
4961 XFRAME (frame
)->param_alist
)),
4966 CHECK_LIVE_FRAME (frame
);
4969 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
4970 attrs
[i
] = Qunspecified
;
4971 merge_face_ref (f
, attributes
, attrs
, true, 0);
4973 def_face
= FACE_FROM_ID_OR_NULL (f
, DEFAULT_FACE_ID
);
4974 if (def_face
== NULL
)
4976 if (! realize_basic_faces (f
))
4977 error ("Cannot realize default face");
4978 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4981 /* Dispatch to the appropriate handler. */
4982 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
4983 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
4984 #ifdef HAVE_WINDOW_SYSTEM
4986 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
4989 return supports
? Qt
: Qnil
;
4993 /***********************************************************************
4995 ***********************************************************************/
4997 DEFUN ("internal-set-font-selection-order",
4998 Finternal_set_font_selection_order
,
4999 Sinternal_set_font_selection_order
, 1, 1, 0,
5000 doc
: /* Set font selection order for face font selection to ORDER.
5001 ORDER must be a list of length 4 containing the symbols `:width',
5002 `:height', `:weight', and `:slant'. Face attributes appearing
5003 first in ORDER are matched first, e.g. if `:height' appears before
5004 `:weight' in ORDER, font selection first tries to find a font with
5005 a suitable height, and then tries to match the font weight.
5011 int indices
[ARRAYELTS (font_sort_order
)];
5014 memset (indices
, 0, sizeof indices
);
5018 CONSP (list
) && i
< ARRAYELTS (indices
);
5019 list
= XCDR (list
), ++i
)
5021 Lisp_Object attr
= XCAR (list
);
5024 if (EQ (attr
, QCwidth
))
5026 else if (EQ (attr
, QCheight
))
5027 xlfd
= XLFD_POINT_SIZE
;
5028 else if (EQ (attr
, QCweight
))
5030 else if (EQ (attr
, QCslant
))
5035 if (indices
[i
] != 0)
5040 if (!NILP (list
) || i
!= ARRAYELTS (indices
))
5041 signal_error ("Invalid font sort order", order
);
5042 for (i
= 0; i
< ARRAYELTS (font_sort_order
); ++i
)
5043 if (indices
[i
] == 0)
5044 signal_error ("Invalid font sort order", order
);
5046 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5048 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5049 free_all_realized_faces (Qnil
);
5052 font_update_sort_order (font_sort_order
);
5058 DEFUN ("internal-set-alternative-font-family-alist",
5059 Finternal_set_alternative_font_family_alist
,
5060 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5061 doc
: /* Define alternative font families to try in face font selection.
5062 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5063 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5064 be found. Value is ALIST. */)
5067 Lisp_Object entry
, tail
, tail2
;
5070 alist
= Fcopy_sequence (alist
);
5071 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5073 entry
= XCAR (tail
);
5075 entry
= Fcopy_sequence (entry
);
5076 XSETCAR (tail
, entry
);
5077 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5078 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5081 Vface_alternative_font_family_alist
= alist
;
5082 free_all_realized_faces (Qnil
);
5087 DEFUN ("internal-set-alternative-font-registry-alist",
5088 Finternal_set_alternative_font_registry_alist
,
5089 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5090 doc
: /* Define alternative font registries to try in face font selection.
5091 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5092 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5093 be found. Value is ALIST. */)
5096 Lisp_Object entry
, tail
, tail2
;
5099 alist
= Fcopy_sequence (alist
);
5100 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5102 entry
= XCAR (tail
);
5104 entry
= Fcopy_sequence (entry
);
5105 XSETCAR (tail
, entry
);
5106 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5107 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5109 Vface_alternative_font_registry_alist
= alist
;
5110 free_all_realized_faces (Qnil
);
5115 #ifdef HAVE_WINDOW_SYSTEM
5117 /* Return the fontset id of the base fontset name or alias name given
5118 by the fontset attribute of ATTRS. Value is -1 if the fontset
5119 attribute of ATTRS doesn't name a fontset. */
5122 face_fontset (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5126 name
= attrs
[LFACE_FONTSET_INDEX
];
5127 if (!STRINGP (name
))
5129 return fs_query_fontset (name
, 0);
5132 #endif /* HAVE_WINDOW_SYSTEM */
5136 /***********************************************************************
5138 ***********************************************************************/
5140 /* Realize basic faces on frame F. Value is zero if frame parameters
5141 of F don't contain enough information needed to realize the default
5145 realize_basic_faces (struct frame
*f
)
5147 bool success_p
= false;
5149 /* Block input here so that we won't be surprised by an X expose
5150 event, for instance, without having the faces set up. */
5153 if (realize_default_face (f
))
5155 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5156 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5157 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5158 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5159 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5160 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5161 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5162 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5163 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5164 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5165 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5166 realize_named_face (f
, Qwindow_divider
, WINDOW_DIVIDER_FACE_ID
);
5167 realize_named_face (f
, Qwindow_divider_first_pixel
,
5168 WINDOW_DIVIDER_FIRST_PIXEL_FACE_ID
);
5169 realize_named_face (f
, Qwindow_divider_last_pixel
,
5170 WINDOW_DIVIDER_LAST_PIXEL_FACE_ID
);
5172 /* Reflect changes in the `menu' face in menu bars. */
5173 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5175 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= false;
5176 #ifdef USE_X_TOOLKIT
5177 if (FRAME_WINDOW_P (f
))
5178 x_update_menu_appearance (f
);
5190 /* Realize the default face on frame F. If the face is not fully
5191 specified, make it fully-specified. Attributes of the default face
5192 that are not explicitly specified are taken from frame parameters. */
5195 realize_default_face (struct frame
*f
)
5197 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5199 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5201 /* If the `default' face is not yet known, create it. */
5202 lface
= lface_from_face_name (f
, Qdefault
, false);
5206 XSETFRAME (frame
, f
);
5207 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5210 #ifdef HAVE_WINDOW_SYSTEM
5211 if (FRAME_WINDOW_P (f
))
5213 Lisp_Object font_object
;
5215 XSETFONT (font_object
, FRAME_FONT (f
));
5216 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5217 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5218 f
->default_face_done_p
= true;
5220 #endif /* HAVE_WINDOW_SYSTEM */
5222 if (!FRAME_WINDOW_P (f
))
5224 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5225 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5226 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5227 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5228 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5229 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5230 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5231 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5232 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5233 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5236 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5237 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5239 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5240 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5242 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5243 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5245 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5246 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5248 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5249 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5251 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5253 /* This function is called so early that colors are not yet
5254 set in the frame parameter list. */
5255 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5257 if (CONSP (color
) && STRINGP (XCDR (color
)))
5258 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5259 else if (FRAME_WINDOW_P (f
))
5261 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5262 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5267 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5269 /* This function is called so early that colors are not yet
5270 set in the frame parameter list. */
5271 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5272 if (CONSP (color
) && STRINGP (XCDR (color
)))
5273 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5274 else if (FRAME_WINDOW_P (f
))
5276 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5277 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5282 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5283 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5285 /* Realize the face; it must be fully-specified now. */
5286 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5287 check_lface (lface
);
5288 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5289 struct face
*face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5291 #ifndef HAVE_WINDOW_SYSTEM
5294 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5296 /* This can happen when making a frame on a display that does
5297 not support the default font. */
5301 /* Otherwise, the font specified for the frame was not
5302 acceptable as a font for the default face (perhaps because
5303 auto-scaled fonts are rejected), so we must adjust the frame
5305 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5312 /* Realize basic faces other than the default face in face cache C.
5313 SYMBOL is the face name, ID is the face id the realized face must
5314 have. The default face must have been realized already. */
5317 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5319 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5320 Lisp_Object lface
= lface_from_face_name (f
, symbol
, false);
5321 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5322 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5324 /* The default face must exist and be fully specified. */
5325 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, true);
5326 check_lface_attrs (attrs
);
5327 eassert (lface_fully_specified_p (attrs
));
5329 /* If SYMBOL isn't know as a face, create it. */
5333 XSETFRAME (frame
, f
);
5334 lface
= Finternal_make_lisp_face (symbol
, frame
);
5337 /* Merge SYMBOL's face with the default face. */
5338 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, true);
5339 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5341 /* Realize the face. */
5342 realize_face (c
, attrs
, id
);
5346 /* Realize the fully-specified face with attributes ATTRS in face
5347 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5348 non-negative, it is an ID of face to remove before caching the new
5349 face. Value is a pointer to the newly created realized face. */
5351 static struct face
*
5352 realize_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
5357 /* LFACE must be fully specified. */
5358 eassert (cache
!= NULL
);
5359 check_lface_attrs (attrs
);
5361 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5363 /* Remove the former face. */
5364 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5365 uncache_face (cache
, former_face
);
5366 free_realized_face (cache
->f
, former_face
);
5367 SET_FRAME_GARBAGED (cache
->f
);
5370 if (FRAME_WINDOW_P (cache
->f
))
5371 face
= realize_x_face (cache
, attrs
);
5372 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5373 face
= realize_tty_face (cache
, attrs
);
5374 else if (FRAME_INITIAL_P (cache
->f
))
5376 /* Create a dummy face. */
5377 face
= make_realized_face (attrs
);
5382 /* Insert the new face. */
5383 cache_face (cache
, face
, lface_hash (attrs
));
5388 #ifdef HAVE_WINDOW_SYSTEM
5389 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5390 same attributes as BASE_FACE except for the font on frame F.
5391 FONT-OBJECT may be nil, in which case, realized a face of
5394 static struct face
*
5395 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5396 struct face
*base_face
)
5398 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5401 face
= xmalloc (sizeof *face
);
5405 = (! NILP (font_object
)
5406 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5407 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5409 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5410 face
->colors_copied_bitwise_p
= true;
5411 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5414 cache_face (cache
, face
, face
->hash
);
5418 #endif /* HAVE_WINDOW_SYSTEM */
5421 /* Realize the fully-specified face with attributes ATTRS in face
5422 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5423 the new face doesn't share font with the default face, a fontname
5424 is allocated from the heap and set in `font_name' of the new face,
5425 but it is not yet loaded here. Value is a pointer to the newly
5426 created realized face. */
5428 static struct face
*
5429 realize_x_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5431 struct face
*face
= NULL
;
5432 #ifdef HAVE_WINDOW_SYSTEM
5433 struct face
*default_face
;
5435 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5437 eassert (FRAME_WINDOW_P (cache
->f
));
5439 /* Allocate a new realized face. */
5440 face
= make_realized_face (attrs
);
5441 face
->ascii_face
= face
;
5445 /* Determine the font to use. Most of the time, the font will be
5446 the same as the font of the default face, so try that first. */
5447 default_face
= FACE_FROM_ID_OR_NULL (f
, DEFAULT_FACE_ID
);
5449 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5451 face
->font
= default_face
->font
;
5453 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5457 /* If the face attribute ATTRS specifies a fontset, use it as
5458 the base of a new realized fontset. Otherwise, use the same
5459 base fontset as of the default face. The base determines
5460 registry and encoding of a font. It may also determine
5461 foundry and family. The other fields of font name pattern
5462 are constructed from ATTRS. */
5463 int fontset
= face_fontset (attrs
);
5465 /* If we are realizing the default face, ATTRS should specify a
5466 fontset. In other words, if FONTSET is -1, we are not
5467 realizing the default face, thus the default face should have
5468 already been realized. */
5472 fontset
= default_face
->fontset
;
5476 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5477 attrs
[LFACE_FONT_INDEX
]
5478 = font_load_for_lface (f
, attrs
, Ffont_spec (0, NULL
));
5479 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5481 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5482 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5492 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5493 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5494 face
->overstrike
= true;
5496 /* Load colors, and set remaining attributes. */
5498 load_face_colors (f
, face
, attrs
);
5501 box
= attrs
[LFACE_BOX_INDEX
];
5504 /* A simple box of line width 1 drawn in color given by
5506 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5508 face
->box
= FACE_SIMPLE_BOX
;
5509 face
->box_line_width
= 1;
5511 else if (INTEGERP (box
))
5513 /* Simple box of specified line width in foreground color of the
5515 eassert (XINT (box
) != 0);
5516 face
->box
= FACE_SIMPLE_BOX
;
5517 face
->box_line_width
= XINT (box
);
5518 face
->box_color
= face
->foreground
;
5519 face
->box_color_defaulted_p
= true;
5521 else if (CONSP (box
))
5523 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5524 being one of `raised' or `sunken'. */
5525 face
->box
= FACE_SIMPLE_BOX
;
5526 face
->box_color
= face
->foreground
;
5527 face
->box_color_defaulted_p
= true;
5528 face
->box_line_width
= 1;
5532 Lisp_Object keyword
, value
;
5534 keyword
= XCAR (box
);
5542 if (EQ (keyword
, QCline_width
))
5544 if (INTEGERP (value
) && XINT (value
) != 0)
5545 face
->box_line_width
= XINT (value
);
5547 else if (EQ (keyword
, QCcolor
))
5549 if (STRINGP (value
))
5551 face
->box_color
= load_color (f
, face
, value
,
5553 face
->use_box_color_for_shadows_p
= true;
5556 else if (EQ (keyword
, QCstyle
))
5558 if (EQ (value
, Qreleased_button
))
5559 face
->box
= FACE_RAISED_BOX
;
5560 else if (EQ (value
, Qpressed_button
))
5561 face
->box
= FACE_SUNKEN_BOX
;
5566 /* Text underline, overline, strike-through. */
5568 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5569 if (EQ (underline
, Qt
))
5571 /* Use default color (same as foreground color). */
5572 face
->underline_p
= true;
5573 face
->underline_type
= FACE_UNDER_LINE
;
5574 face
->underline_defaulted_p
= true;
5575 face
->underline_color
= 0;
5577 else if (STRINGP (underline
))
5579 /* Use specified color. */
5580 face
->underline_p
= true;
5581 face
->underline_type
= FACE_UNDER_LINE
;
5582 face
->underline_defaulted_p
= false;
5583 face
->underline_color
5584 = load_color (f
, face
, underline
,
5585 LFACE_UNDERLINE_INDEX
);
5587 else if (NILP (underline
))
5589 face
->underline_p
= false;
5590 face
->underline_defaulted_p
= false;
5591 face
->underline_color
= 0;
5593 else if (CONSP (underline
))
5595 /* `(:color COLOR :style STYLE)'.
5596 STYLE being one of `line' or `wave'. */
5597 face
->underline_p
= true;
5598 face
->underline_color
= 0;
5599 face
->underline_defaulted_p
= true;
5600 face
->underline_type
= FACE_UNDER_LINE
;
5602 /* FIXME? This is also not robust about checking the precise form.
5603 See comments in Finternal_set_lisp_face_attribute. */
5604 while (CONSP (underline
))
5606 Lisp_Object keyword
, value
;
5608 keyword
= XCAR (underline
);
5609 underline
= XCDR (underline
);
5611 if (!CONSP (underline
))
5613 value
= XCAR (underline
);
5614 underline
= XCDR (underline
);
5616 if (EQ (keyword
, QCcolor
))
5618 if (EQ (value
, Qforeground_color
))
5620 face
->underline_defaulted_p
= true;
5621 face
->underline_color
= 0;
5623 else if (STRINGP (value
))
5625 face
->underline_defaulted_p
= false;
5626 face
->underline_color
= load_color (f
, face
, value
,
5627 LFACE_UNDERLINE_INDEX
);
5630 else if (EQ (keyword
, QCstyle
))
5632 if (EQ (value
, Qline
))
5633 face
->underline_type
= FACE_UNDER_LINE
;
5634 else if (EQ (value
, Qwave
))
5635 face
->underline_type
= FACE_UNDER_WAVE
;
5640 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5641 if (STRINGP (overline
))
5643 face
->overline_color
5644 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5645 LFACE_OVERLINE_INDEX
);
5646 face
->overline_p
= true;
5648 else if (EQ (overline
, Qt
))
5650 face
->overline_color
= face
->foreground
;
5651 face
->overline_color_defaulted_p
= true;
5652 face
->overline_p
= true;
5655 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5656 if (STRINGP (strike_through
))
5658 face
->strike_through_color
5659 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5660 LFACE_STRIKE_THROUGH_INDEX
);
5661 face
->strike_through_p
= true;
5663 else if (EQ (strike_through
, Qt
))
5665 face
->strike_through_color
= face
->foreground
;
5666 face
->strike_through_color_defaulted_p
= true;
5667 face
->strike_through_p
= true;
5670 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5671 if (!NILP (stipple
))
5672 face
->stipple
= load_pixmap (f
, stipple
);
5673 #endif /* HAVE_WINDOW_SYSTEM */
5679 /* Map a specified color of face FACE on frame F to a tty color index.
5680 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5681 specifies which color to map. Set *DEFAULTED to true if mapping to the
5682 default foreground/background colors. */
5685 map_tty_color (struct frame
*f
, struct face
*face
,
5686 enum lface_attribute_index idx
, bool *defaulted
)
5688 Lisp_Object frame
, color
, def
;
5689 bool foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5690 unsigned long default_pixel
=
5691 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5692 unsigned long pixel
= default_pixel
;
5694 unsigned long default_other_pixel
=
5695 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5698 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5700 XSETFRAME (frame
, f
);
5701 color
= face
->lface
[idx
];
5705 && CONSP (Vtty_defined_color_alist
)
5706 && (def
= assoc_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5709 /* Associations in tty-defined-color-alist are of the form
5710 (NAME INDEX R G B). We need the INDEX part. */
5711 pixel
= XINT (XCAR (XCDR (def
)));
5714 if (pixel
== default_pixel
&& STRINGP (color
))
5716 pixel
= load_color (f
, face
, color
, idx
);
5719 /* If the foreground of the default face is the default color,
5720 use the foreground color defined by the frame. */
5721 if (FRAME_MSDOS_P (f
))
5723 if (pixel
== default_pixel
5724 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5727 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5729 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5730 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5733 else if (pixel
== default_other_pixel
)
5736 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5738 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5739 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5747 face
->foreground
= pixel
;
5749 face
->background
= pixel
;
5753 /* Realize the fully-specified face with attributes ATTRS in face
5754 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5755 Value is a pointer to the newly created realized face. */
5757 static struct face
*
5758 realize_tty_face (struct face_cache
*cache
,
5759 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5763 bool face_colors_defaulted
= false;
5764 struct frame
*f
= cache
->f
;
5766 /* Frame must be a termcap frame. */
5767 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5769 /* Allocate a new realized face. */
5770 face
= make_realized_face (attrs
);
5772 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5775 /* Map face attributes to TTY appearances. */
5776 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5777 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5779 face
->tty_bold_p
= true;
5781 face
->tty_italic_p
= true;
5782 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5783 face
->tty_underline_p
= true;
5784 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5785 face
->tty_reverse_p
= true;
5787 /* Map color names to color indices. */
5788 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5789 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5791 /* Swap colors if face is inverse-video. If the colors are taken
5792 from the frame colors, they are already inverted, since the
5793 frame-creation function calls x-handle-reverse-video. */
5794 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5796 unsigned long tem
= face
->foreground
;
5797 face
->foreground
= face
->background
;
5798 face
->background
= tem
;
5801 if (tty_suppress_bold_inverse_default_colors_p
5803 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5804 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5805 face
->tty_bold_p
= false;
5811 DEFUN ("tty-suppress-bold-inverse-default-colors",
5812 Ftty_suppress_bold_inverse_default_colors
,
5813 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5814 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5815 SUPPRESS non-nil means suppress it.
5816 This affects bold faces on TTYs whose foreground is the default background
5817 color of the display and whose background is the default foreground color.
5818 For such faces, the bold face attribute is ignored if this variable
5820 (Lisp_Object suppress
)
5822 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5829 /***********************************************************************
5831 ***********************************************************************/
5833 /* Return the ID of the face to use to display character CH with face
5834 property PROP on frame F in current_buffer. */
5837 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5841 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5846 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5847 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5851 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5852 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5853 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5854 merge_face_ref (f
, prop
, attrs
, true, 0);
5855 face_id
= lookup_face (f
, attrs
);
5861 /* Return the face ID associated with buffer position POS for
5862 displaying ASCII characters. Return in *ENDPTR the position at
5863 which a different face is needed, as far as text properties and
5864 overlays are concerned. W is a window displaying current_buffer.
5866 REGION_BEG, REGION_END delimit the region, so it can be
5869 LIMIT is a position not to scan beyond. That is to limit the time
5870 this function can take.
5872 If MOUSE, use the character's mouse-face, not its face.
5874 BASE_FACE_ID, if non-negative, specifies a base face id to use
5875 instead of DEFAULT_FACE_ID.
5877 The face returned is suitable for displaying ASCII characters. */
5880 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
5881 ptrdiff_t *endptr
, ptrdiff_t limit
,
5882 bool mouse
, int base_face_id
)
5884 struct frame
*f
= XFRAME (w
->frame
);
5885 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5886 Lisp_Object prop
, position
;
5887 ptrdiff_t i
, noverlays
;
5888 Lisp_Object
*overlay_vec
;
5890 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5891 Lisp_Object limit1
, end
;
5892 struct face
*default_face
;
5894 /* W must display the current buffer. We could write this function
5895 to use the frame and buffer of W, but right now it doesn't. */
5896 /* eassert (XBUFFER (w->contents) == current_buffer); */
5898 XSETFASTINT (position
, pos
);
5902 /* Get the `face' or `mouse_face' text property at POS, and
5903 determine the next position at which the property changes. */
5904 prop
= Fget_text_property (position
, propname
, w
->contents
);
5905 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5906 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
5908 endpos
= XINT (end
);
5910 /* Look at properties from overlays. */
5913 ptrdiff_t next_overlay
;
5915 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, false);
5916 if (next_overlay
< endpos
)
5917 endpos
= next_overlay
;
5925 if (base_face_id
>= 0)
5926 face_id
= base_face_id
;
5927 else if (NILP (Vface_remapping_alist
))
5928 face_id
= DEFAULT_FACE_ID
;
5930 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
5932 default_face
= FACE_FROM_ID (f
, face_id
);
5935 /* Optimize common cases where we can use the default face. */
5940 return default_face
->id
;
5943 /* Begin with attributes from the default face. */
5944 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5946 /* Merge in attributes specified via text properties. */
5948 merge_face_ref (f
, prop
, attrs
, true, 0);
5950 /* Now merge the overlay data. */
5951 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
5952 for (i
= 0; i
< noverlays
; i
++)
5957 prop
= Foverlay_get (overlay_vec
[i
], propname
);
5959 merge_face_ref (f
, prop
, attrs
, true, 0);
5961 oend
= OVERLAY_END (overlay_vec
[i
]);
5962 oendpos
= OVERLAY_POSITION (oend
);
5963 if (oendpos
< endpos
)
5971 /* Look up a realized face with the given face attributes,
5972 or realize a new one for ASCII characters. */
5973 return lookup_face (f
, attrs
);
5976 /* Return the face ID at buffer position POS for displaying ASCII
5977 characters associated with overlay strings for overlay OVERLAY.
5979 Like face_at_buffer_position except for OVERLAY. Currently it
5980 simply disregards the `face' properties of all overlays. */
5983 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
5984 ptrdiff_t *endptr
, ptrdiff_t limit
,
5985 bool mouse
, Lisp_Object overlay
)
5987 struct frame
*f
= XFRAME (w
->frame
);
5988 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5989 Lisp_Object prop
, position
;
5991 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5992 Lisp_Object limit1
, end
;
5993 struct face
*default_face
;
5995 /* W must display the current buffer. We could write this function
5996 to use the frame and buffer of W, but right now it doesn't. */
5997 /* eassert (XBUFFER (w->contents) == current_buffer); */
5999 XSETFASTINT (position
, pos
);
6003 /* Get the `face' or `mouse_face' text property at POS, and
6004 determine the next position at which the property changes. */
6005 prop
= Fget_text_property (position
, propname
, w
->contents
);
6006 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6007 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
6009 endpos
= XINT (end
);
6013 /* Optimize common case where we can use the default face. */
6015 && NILP (Vface_remapping_alist
))
6016 return DEFAULT_FACE_ID
;
6018 /* Begin with attributes from the default face. */
6019 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6020 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6022 /* Merge in attributes specified via text properties. */
6024 merge_face_ref (f
, prop
, attrs
, true, 0);
6028 /* Look up a realized face with the given face attributes,
6029 or realize a new one for ASCII characters. */
6030 return lookup_face (f
, attrs
);
6034 /* Compute the face at character position POS in Lisp string STRING on
6035 window W, for ASCII characters.
6037 If STRING is an overlay string, it comes from position BUFPOS in
6038 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6039 not an overlay string. W must display the current buffer.
6040 REGION_BEG and REGION_END give the start and end positions of the
6041 region; both are -1 if no region is visible.
6043 BASE_FACE_ID is the id of a face to merge with. For strings coming
6044 from overlays or the `display' property it is the face at BUFPOS.
6046 If MOUSE_P, use the character's mouse-face, not its face.
6048 Set *ENDPTR to the next position where to check for faces in
6049 STRING; -1 if the face is constant from POS to the end of the
6052 Value is the id of the face to use. The face returned is suitable
6053 for displaying ASCII characters. */
6056 face_at_string_position (struct window
*w
, Lisp_Object string
,
6057 ptrdiff_t pos
, ptrdiff_t bufpos
,
6058 ptrdiff_t *endptr
, enum face_id base_face_id
,
6061 Lisp_Object prop
, position
, end
, limit
;
6062 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6063 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6064 struct face
*base_face
;
6065 bool multibyte_p
= STRING_MULTIBYTE (string
);
6066 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6068 /* Get the value of the face property at the current position within
6069 STRING. Value is nil if there is no face property. */
6070 XSETFASTINT (position
, pos
);
6071 prop
= Fget_text_property (position
, prop_name
, string
);
6073 /* Get the next position at which to check for faces. Value of end
6074 is nil if face is constant all the way to the end of the string.
6075 Otherwise it is a string position where to check faces next.
6076 Limit is the maximum position up to which to check for property
6077 changes in Fnext_single_property_change. Strings are usually
6078 short, so set the limit to the end of the string. */
6079 XSETFASTINT (limit
, SCHARS (string
));
6080 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6082 *endptr
= XFASTINT (end
);
6086 base_face
= FACE_FROM_ID (f
, base_face_id
);
6088 /* Optimize the default case that there is no face property. */
6091 /* We can't realize faces for different charsets differently
6092 if we don't have fonts, so we can stop here if not working
6093 on a window-system frame. */
6094 || !FRAME_WINDOW_P (f
)
6095 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
)))
6096 return base_face
->id
;
6098 /* Begin with attributes from the base face. */
6099 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6101 /* Merge in attributes specified via text properties. */
6103 merge_face_ref (f
, prop
, attrs
, true, 0);
6105 /* Look up a realized face with the given face attributes,
6106 or realize a new one for ASCII characters. */
6107 return lookup_face (f
, attrs
);
6111 /* Merge a face into a realized face.
6113 F is frame where faces are (to be) realized.
6115 FACE_NAME is named face to merge.
6117 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6119 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6121 BASE_FACE_ID is realized face to merge into.
6127 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6130 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6131 struct face
*base_face
;
6133 base_face
= FACE_FROM_ID_OR_NULL (f
, base_face_id
);
6135 return base_face_id
;
6137 if (EQ (face_name
, Qt
))
6139 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6140 return base_face_id
;
6141 face_name
= lface_id_to_name
[face_id
];
6142 /* When called during make-frame, lookup_derived_face may fail
6143 if the faces are uninitialized. Don't signal an error. */
6144 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6145 return (face_id
>= 0 ? face_id
: base_face_id
);
6148 /* Begin with attributes from the base face. */
6149 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6151 if (!NILP (face_name
))
6153 if (!merge_named_face (f
, face_name
, attrs
, 0))
6154 return base_face_id
;
6160 return base_face_id
;
6161 face
= FACE_FROM_ID_OR_NULL (f
, face_id
);
6163 return base_face_id
;
6164 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6167 /* Look up a realized face with the given face attributes,
6168 or realize a new one for ASCII characters. */
6169 return lookup_face (f
, attrs
);
6174 #ifndef HAVE_X_WINDOWS
6175 DEFUN ("x-load-color-file", Fx_load_color_file
,
6176 Sx_load_color_file
, 1, 1, 0,
6177 doc
: /* Create an alist of color entries from an external file.
6179 The file should define one named RGB color per line like so:
6181 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6182 (Lisp_Object filename
)
6185 Lisp_Object cmap
= Qnil
;
6186 Lisp_Object abspath
;
6188 CHECK_STRING (filename
);
6189 abspath
= Fexpand_file_name (filename
, Qnil
);
6192 fp
= emacs_fopen (SSDATA (abspath
), "r" FOPEN_TEXT
);
6196 int red
, green
, blue
;
6199 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6200 if (sscanf (buf
, "%d %d %d %n", &red
, &green
, &blue
, &num
) == 3)
6203 int color
= RGB (red
, green
, blue
);
6205 int color
= (red
<< 16) | (green
<< 8) | blue
;
6207 char *name
= buf
+ num
;
6208 ptrdiff_t len
= strlen (name
);
6209 len
-= 0 < len
&& name
[len
- 1] == '\n';
6210 cmap
= Fcons (Fcons (make_string (name
, len
), make_number (color
)),
6222 /***********************************************************************
6224 ***********************************************************************/
6228 /* Print the contents of the realized face FACE to stderr. */
6231 dump_realized_face (struct face
*face
)
6233 fprintf (stderr
, "ID: %d\n", face
->id
);
6234 #ifdef HAVE_X_WINDOWS
6235 fprintf (stderr
, "gc: %p\n", face
->gc
);
6237 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6239 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6240 fprintf (stderr
, "background: 0x%lx (%s)\n",
6242 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6244 fprintf (stderr
, "font_name: %s (%s)\n",
6245 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6246 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6247 #ifdef HAVE_X_WINDOWS
6248 fprintf (stderr
, "font = %p\n", face
->font
);
6250 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6251 fprintf (stderr
, "underline: %d (%s)\n",
6253 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6254 fprintf (stderr
, "hash: %u\n", face
->hash
);
6258 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6265 fprintf (stderr
, "font selection order: ");
6266 for (i
= 0; i
< ARRAYELTS (font_sort_order
); ++i
)
6267 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6268 fprintf (stderr
, "\n");
6270 fprintf (stderr
, "alternative fonts: ");
6271 debug_print (Vface_alternative_font_family_alist
);
6272 fprintf (stderr
, "\n");
6274 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6275 Fdump_face (make_number (i
));
6281 face
= FACE_FROM_ID_OR_NULL (SELECTED_FRAME (), XINT (n
));
6283 error ("Not a valid face");
6284 dump_realized_face (face
);
6291 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6292 0, 0, 0, doc
: /* */)
6295 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6296 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6297 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6301 #endif /* GLYPH_DEBUG */
6305 /***********************************************************************
6307 ***********************************************************************/
6310 syms_of_xfaces (void)
6312 /* The symbols `face' and `mouse-face' used as text properties. */
6313 DEFSYM (Qface
, "face");
6315 /* Property for basic faces which other faces cannot inherit. */
6316 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6318 /* Error symbol for wrong_type_argument in load_pixmap. */
6319 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6321 /* The name of the function to call when the background of the frame
6322 has changed, frame_set_background_mode. */
6323 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6325 /* Lisp face attribute keywords. */
6326 DEFSYM (QCfamily
, ":family");
6327 DEFSYM (QCheight
, ":height");
6328 DEFSYM (QCweight
, ":weight");
6329 DEFSYM (QCslant
, ":slant");
6330 DEFSYM (QCunderline
, ":underline");
6331 DEFSYM (QCinverse_video
, ":inverse-video");
6332 DEFSYM (QCreverse_video
, ":reverse-video");
6333 DEFSYM (QCforeground
, ":foreground");
6334 DEFSYM (QCbackground
, ":background");
6335 DEFSYM (QCstipple
, ":stipple");
6336 DEFSYM (QCwidth
, ":width");
6337 DEFSYM (QCfont
, ":font");
6338 DEFSYM (QCfontset
, ":fontset");
6339 DEFSYM (QCdistant_foreground
, ":distant-foreground");
6340 DEFSYM (QCbold
, ":bold");
6341 DEFSYM (QCitalic
, ":italic");
6342 DEFSYM (QCoverline
, ":overline");
6343 DEFSYM (QCstrike_through
, ":strike-through");
6344 DEFSYM (QCbox
, ":box");
6345 DEFSYM (QCinherit
, ":inherit");
6347 /* Symbols used for Lisp face attribute values. */
6348 DEFSYM (QCcolor
, ":color");
6349 DEFSYM (QCline_width
, ":line-width");
6350 DEFSYM (QCstyle
, ":style");
6351 DEFSYM (Qline
, "line");
6352 DEFSYM (Qwave
, "wave");
6353 DEFSYM (Qreleased_button
, "released-button");
6354 DEFSYM (Qpressed_button
, "pressed-button");
6355 DEFSYM (Qnormal
, "normal");
6356 DEFSYM (Qextra_light
, "extra-light");
6357 DEFSYM (Qlight
, "light");
6358 DEFSYM (Qsemi_light
, "semi-light");
6359 DEFSYM (Qsemi_bold
, "semi-bold");
6360 DEFSYM (Qbold
, "bold");
6361 DEFSYM (Qextra_bold
, "extra-bold");
6362 DEFSYM (Qultra_bold
, "ultra-bold");
6363 DEFSYM (Qoblique
, "oblique");
6364 DEFSYM (Qitalic
, "italic");
6366 /* The symbols `foreground-color' and `background-color' which can be
6367 used as part of a `face' property. This is for compatibility with
6369 DEFSYM (Qbackground_color
, "background-color");
6370 DEFSYM (Qforeground_color
, "foreground-color");
6372 DEFSYM (Qunspecified
, "unspecified");
6373 DEFSYM (QCignore_defface
, ":ignore-defface");
6375 /* The symbol `face-alias'. A symbol having that property is an
6376 alias for another face. Value of the property is the name of
6377 the aliased face. */
6378 DEFSYM (Qface_alias
, "face-alias");
6380 /* Names of basic faces. */
6381 DEFSYM (Qdefault
, "default");
6382 DEFSYM (Qtool_bar
, "tool-bar");
6383 DEFSYM (Qfringe
, "fringe");
6384 DEFSYM (Qheader_line
, "header-line");
6385 DEFSYM (Qscroll_bar
, "scroll-bar");
6386 DEFSYM (Qmenu
, "menu");
6387 DEFSYM (Qcursor
, "cursor");
6388 DEFSYM (Qborder
, "border");
6389 DEFSYM (Qmouse
, "mouse");
6390 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6391 DEFSYM (Qvertical_border
, "vertical-border");
6393 /* TTY color-related functions (defined in tty-colors.el). */
6394 DEFSYM (Qwindow_divider
, "window-divider");
6395 DEFSYM (Qwindow_divider_first_pixel
, "window-divider-first-pixel");
6396 DEFSYM (Qwindow_divider_last_pixel
, "window-divider-last-pixel");
6397 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6398 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6399 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6401 /* The name of the function used to compute colors on TTYs. */
6402 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6404 Vparam_value_alist
= list1 (Fcons (Qnil
, Qnil
));
6405 staticpro (&Vparam_value_alist
);
6406 Vface_alternative_font_family_alist
= Qnil
;
6407 staticpro (&Vface_alternative_font_family_alist
);
6408 Vface_alternative_font_registry_alist
= Qnil
;
6409 staticpro (&Vface_alternative_font_registry_alist
);
6411 defsubr (&Sinternal_make_lisp_face
);
6412 defsubr (&Sinternal_lisp_face_p
);
6413 defsubr (&Sinternal_set_lisp_face_attribute
);
6414 #ifdef HAVE_WINDOW_SYSTEM
6415 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6417 defsubr (&Scolor_gray_p
);
6418 defsubr (&Scolor_supported_p
);
6419 #ifndef HAVE_X_WINDOWS
6420 defsubr (&Sx_load_color_file
);
6422 defsubr (&Sface_attribute_relative_p
);
6423 defsubr (&Smerge_face_attribute
);
6424 defsubr (&Sinternal_get_lisp_face_attribute
);
6425 defsubr (&Sinternal_lisp_face_attribute_values
);
6426 defsubr (&Sinternal_lisp_face_equal_p
);
6427 defsubr (&Sinternal_lisp_face_empty_p
);
6428 defsubr (&Sinternal_copy_lisp_face
);
6429 defsubr (&Sinternal_merge_in_global_face
);
6430 defsubr (&Sface_font
);
6431 defsubr (&Sframe_face_alist
);
6432 defsubr (&Sdisplay_supports_face_attributes_p
);
6433 defsubr (&Scolor_distance
);
6434 defsubr (&Sinternal_set_font_selection_order
);
6435 defsubr (&Sinternal_set_alternative_font_family_alist
);
6436 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6437 defsubr (&Sface_attributes_as_vector
);
6439 defsubr (&Sdump_face
);
6440 defsubr (&Sshow_face_resources
);
6441 #endif /* GLYPH_DEBUG */
6442 defsubr (&Sclear_face_cache
);
6443 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6445 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6446 defsubr (&Sdump_colors
);
6449 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6450 doc
: /* List of global face definitions (for internal use only.) */);
6451 Vface_new_frame_defaults
= Qnil
;
6453 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6454 doc
: /* Default stipple pattern used on monochrome displays.
6455 This stipple pattern is used on monochrome displays
6456 instead of shades of gray for a face background color.
6457 See `set-face-stipple' for possible values for this variable. */);
6458 Vface_default_stipple
= build_pure_c_string ("gray3");
6460 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6461 doc
: /* An alist of defined terminal colors and their RGB values.
6462 See the docstring of `tty-color-alist' for the details. */);
6463 Vtty_defined_color_alist
= Qnil
;
6465 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6466 doc
: /* Allowed scalable fonts.
6467 A value of nil means don't allow any scalable fonts.
6468 A value of t means allow any scalable font.
6469 Otherwise, value must be a list of regular expressions. A font may be
6470 scaled if its name matches a regular expression in the list.
6471 Note that if value is nil, a scalable font might still be used, if no
6472 other font of the appropriate family and registry is available. */);
6473 Vscalable_fonts_allowed
= Qnil
;
6475 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6476 doc
: /* List of ignored fonts.
6477 Each element is a regular expression that matches names of fonts to
6479 Vface_ignored_fonts
= Qnil
;
6481 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6482 doc
: /* Alist of face remappings.
6483 Each element is of the form:
6485 (FACE . REPLACEMENT),
6487 which causes display of the face FACE to use REPLACEMENT instead.
6488 REPLACEMENT is a face specification, i.e. one of the following:
6491 (2) a property list of attribute/value pairs, or
6492 (3) a list in which each element has the form of (1) or (2).
6494 List values for REPLACEMENT are merged to form the final face
6495 specification, with earlier entries taking precedence, in the same way
6496 as with the `face' text property.
6498 Face-name remapping cycles are suppressed; recursive references use
6499 the underlying face instead of the remapped face. So a remapping of
6502 (FACE EXTRA-FACE... FACE)
6506 (FACE (FACE-ATTR VAL ...) FACE)
6508 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6509 existing definition of FACE. Note that this isn't necessary for the
6510 default face, since every face inherits from the default face.
6512 If this variable is made buffer-local, the face remapping takes effect
6513 only in that buffer. For instance, the mode my-mode could define a
6514 face `my-mode-default', and then in the mode setup function, do:
6516 (set (make-local-variable \\='face-remapping-alist)
6517 \\='((default my-mode-default)))).
6519 Because Emacs normally only redraws screen areas when the underlying
6520 buffer contents change, you may need to call `redraw-display' after
6521 changing this variable for it to take effect. */);
6522 Vface_remapping_alist
= Qnil
;
6524 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6525 doc
: /* Alist of fonts vs the rescaling factors.
6526 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6527 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6528 RESCALE-RATIO is a floating point number to specify how much larger
6529 \(or smaller) font we should use. For instance, if a face requests
6530 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6531 Vface_font_rescale_alist
= Qnil
;
6533 #ifdef HAVE_WINDOW_SYSTEM
6534 defsubr (&Sbitmap_spec_p
);
6535 defsubr (&Sx_list_fonts
);
6536 defsubr (&Sinternal_face_x_get_resource
);
6537 defsubr (&Sx_family_fonts
);