1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2016 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. */
203 #include "sysstdio.h"
204 #include <sys/types.h>
205 #include <sys/stat.h>
208 #include "character.h"
213 #include <Xm/XmStrDefs.h>
214 #endif /* USE_MOTIF */
220 #ifdef HAVE_WINDOW_SYSTEM
224 #define GCGraphicsExposures 0
225 #endif /* HAVE_NTGUI */
228 #define GCGraphicsExposures 0
230 #endif /* HAVE_WINDOW_SYSTEM */
233 #include "dispextern.h"
234 #include "blockinput.h"
236 #include "termchar.h"
240 #ifdef HAVE_X_WINDOWS
242 /* Compensate for a bug in Xos.h on some systems, on which it requires
243 time.h. On some such systems, Xos.h tries to redefine struct
244 timeval and struct timezone if USG is #defined while it is
247 #ifdef XOS_NEEDS_TIME_H
253 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
255 #else /* not XOS_NEEDS_TIME_H */
257 #endif /* not XOS_NEEDS_TIME_H */
259 #endif /* HAVE_X_WINDOWS */
263 /* True if face attribute ATTR is unspecified. */
265 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
267 /* True if face attribute ATTR is `ignore-defface'. */
269 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
271 /* Size of hash table of realized faces in face caches (should be a
274 #define FACE_CACHE_BUCKETS_SIZE 1001
276 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
278 /* Alist of alternative font families. Each element is of the form
279 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
280 try FAMILY1, then FAMILY2, ... */
282 Lisp_Object Vface_alternative_font_family_alist
;
284 /* Alist of alternative font registries. Each element is of the form
285 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
286 loaded, try REGISTRY1, then REGISTRY2, ... */
288 Lisp_Object Vface_alternative_font_registry_alist
;
290 /* The next ID to assign to Lisp faces. */
292 static int next_lface_id
;
294 /* A vector mapping Lisp face Id's to face names. */
296 static Lisp_Object
*lface_id_to_name
;
297 static ptrdiff_t lface_id_to_name_size
;
299 #ifdef HAVE_WINDOW_SYSTEM
301 /* Counter for calls to clear_face_cache. If this counter reaches
302 CLEAR_FONT_TABLE_COUNT, and a frame has more than
303 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
305 static int clear_font_table_count
;
306 #define CLEAR_FONT_TABLE_COUNT 100
307 #define CLEAR_FONT_TABLE_NFONTS 10
309 #endif /* HAVE_WINDOW_SYSTEM */
311 /* True means face attributes have been changed since the last
312 redisplay. Used in redisplay_internal. */
316 /* True means don't display bold text if a face's foreground
317 and background colors are the inverse of the default colors of the
318 display. This is a kluge to suppress `bold black' foreground text
319 which is hard to read on an LCD monitor. */
321 static bool tty_suppress_bold_inverse_default_colors_p
;
323 /* A list of the form `((x . y))' used to avoid consing in
324 Finternal_set_lisp_face_attribute. */
326 static Lisp_Object Vparam_value_alist
;
328 /* The total number of colors currently allocated. */
331 static int ncolors_allocated
;
332 static int npixmaps_allocated
;
336 /* True means the definition of the `menu' face for new frames has
339 static bool menu_face_changed_default
;
341 struct named_merge_point
;
343 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
345 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
346 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
347 static bool realize_basic_faces (struct frame
*);
348 static bool realize_default_face (struct frame
*);
349 static void realize_named_face (struct frame
*, Lisp_Object
, int);
350 static struct face_cache
*make_face_cache (struct frame
*);
351 static void free_face_cache (struct face_cache
*);
352 static bool merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
353 bool, struct named_merge_point
*);
354 static int color_distance (XColor
*x
, XColor
*y
);
356 #ifdef HAVE_WINDOW_SYSTEM
357 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
358 static void clear_face_gcs (struct face_cache
*);
359 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
361 #endif /* HAVE_WINDOW_SYSTEM */
363 /***********************************************************************
365 ***********************************************************************/
367 #ifdef HAVE_X_WINDOWS
369 #ifdef DEBUG_X_COLORS
371 /* The following is a poor mans infrastructure for debugging X color
372 allocation problems on displays with PseudoColor-8. Some X servers
373 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
374 color reference counts completely so that they don't signal an
375 error when a color is freed whose reference count is already 0.
376 Other X servers do. To help me debug this, the following code
377 implements a simple reference counting schema of its own, for a
378 single display/screen. --gerd. */
380 /* Reference counts for pixel colors. */
382 int color_count
[256];
384 /* Register color PIXEL as allocated. */
387 register_color (unsigned long pixel
)
389 eassert (pixel
< 256);
390 ++color_count
[pixel
];
394 /* Register color PIXEL as deallocated. */
397 unregister_color (unsigned long pixel
)
399 eassert (pixel
< 256);
400 if (color_count
[pixel
] > 0)
401 --color_count
[pixel
];
407 /* Register N colors from PIXELS as deallocated. */
410 unregister_colors (unsigned long *pixels
, int n
)
413 for (i
= 0; i
< n
; ++i
)
414 unregister_color (pixels
[i
]);
418 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
419 doc
: /* Dump currently allocated colors to stderr. */)
424 fputc ('\n', stderr
);
426 for (i
= n
= 0; i
< ARRAYELTS (color_count
); ++i
)
429 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
432 fputc ('\n', stderr
);
434 fputc ('\t', stderr
);
438 fputc ('\n', stderr
);
442 #endif /* DEBUG_X_COLORS */
445 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
446 color values. Interrupt input must be blocked when this function
450 x_free_colors (struct frame
*f
, unsigned long *pixels
, int npixels
)
452 /* If display has an immutable color map, freeing colors is not
453 necessary and some servers don't allow it. So don't do it. */
454 if (x_mutable_colormap (FRAME_X_VISUAL (f
)))
456 #ifdef DEBUG_X_COLORS
457 unregister_colors (pixels
, npixels
);
459 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
467 /* Free colors used on display DPY. PIXELS is an array of NPIXELS pixel
468 color values. Interrupt input must be blocked when this function
472 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
473 unsigned long *pixels
, int npixels
)
475 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
477 /* If display has an immutable color map, freeing colors is not
478 necessary and some servers don't allow it. So don't do it. */
479 if (x_mutable_colormap (dpyinfo
->visual
))
481 #ifdef DEBUG_X_COLORS
482 unregister_colors (pixels
, npixels
);
484 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
487 #endif /* USE_X_TOOLKIT */
489 /* Create and return a GC for use on frame F. GC values and mask
490 are given by XGCV and MASK. */
493 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
497 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
504 /* Free GC which was used on frame F. */
507 x_free_gc (struct frame
*f
, GC gc
)
509 eassert (input_blocked_p ());
510 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
511 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
514 #endif /* HAVE_X_WINDOWS */
517 /* W32 emulation of GCs */
520 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
524 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
531 /* Free GC which was used on frame F. */
534 x_free_gc (struct frame
*f
, GC gc
)
536 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
540 #endif /* HAVE_NTGUI */
543 /* NS emulation of GCs */
546 x_create_gc (struct frame
*f
,
550 GC gc
= xmalloc (sizeof *gc
);
556 x_free_gc (struct frame
*f
, GC gc
)
562 /***********************************************************************
564 ***********************************************************************/
566 /* Initialize face cache and basic faces for frame F. */
569 init_frame_faces (struct frame
*f
)
571 /* Make a face cache, if F doesn't have one. */
572 if (FRAME_FACE_CACHE (f
) == NULL
)
573 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
575 #ifdef HAVE_WINDOW_SYSTEM
576 /* Make the image cache. */
577 if (FRAME_WINDOW_P (f
))
579 /* We initialize the image cache when creating the first frame
580 on a terminal, and not during terminal creation. This way,
581 `x-open-connection' on a tty won't create an image cache. */
582 if (FRAME_IMAGE_CACHE (f
) == NULL
)
583 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
584 ++FRAME_IMAGE_CACHE (f
)->refcount
;
586 #endif /* HAVE_WINDOW_SYSTEM */
588 /* Realize faces early (Bug#17889). */
589 if (!realize_basic_faces (f
))
594 /* Free face cache of frame F. Called from frame-dependent
595 resource freeing function, e.g. (x|tty)_free_frame_resources. */
598 free_frame_faces (struct frame
*f
)
600 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
604 free_face_cache (face_cache
);
605 FRAME_FACE_CACHE (f
) = NULL
;
608 #ifdef HAVE_WINDOW_SYSTEM
609 if (FRAME_WINDOW_P (f
))
611 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
614 --image_cache
->refcount
;
615 if (image_cache
->refcount
== 0)
616 free_image_cache (f
);
619 #endif /* HAVE_WINDOW_SYSTEM */
623 /* Clear face caches, and recompute basic faces for frame F. Call
624 this after changing frame parameters on which those faces depend,
625 or when realized faces have been freed due to changing attributes
629 recompute_basic_faces (struct frame
*f
)
631 if (FRAME_FACE_CACHE (f
))
633 clear_face_cache (false);
634 if (!realize_basic_faces (f
))
640 /* Clear the face caches of all frames. CLEAR_FONTS_P means
641 try to free unused fonts, too. */
644 clear_face_cache (bool clear_fonts_p
)
646 #ifdef HAVE_WINDOW_SYSTEM
647 Lisp_Object tail
, frame
;
650 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
652 /* From time to time see if we can unload some fonts. This also
653 frees all realized faces on all frames. Fonts needed by
654 faces will be loaded again when faces are realized again. */
655 clear_font_table_count
= 0;
657 FOR_EACH_FRAME (tail
, frame
)
659 struct frame
*f
= XFRAME (frame
);
660 if (FRAME_WINDOW_P (f
)
661 && FRAME_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
663 clear_font_cache (f
);
664 free_all_realized_faces (frame
);
670 /* Clear GCs of realized faces. */
671 FOR_EACH_FRAME (tail
, frame
)
673 struct frame
*f
= XFRAME (frame
);
674 if (FRAME_WINDOW_P (f
))
675 clear_face_gcs (FRAME_FACE_CACHE (f
));
677 clear_image_caches (Qnil
);
679 #endif /* HAVE_WINDOW_SYSTEM */
682 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
683 doc
: /* Clear face caches on all frames.
684 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
685 (Lisp_Object thoroughly
)
687 clear_face_cache (!NILP (thoroughly
));
689 windows_or_buffers_changed
= 53;
694 /***********************************************************************
696 ***********************************************************************/
698 #ifdef HAVE_WINDOW_SYSTEM
700 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
701 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
702 A bitmap specification is either a string, a file name, or a list
703 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
704 HEIGHT is its height, and DATA is a string containing the bits of
705 the pixmap. Bits are stored row by row, each row occupies
706 \(WIDTH + 7)/8 bytes. */)
709 bool pixmap_p
= false;
711 if (STRINGP (object
))
712 /* If OBJECT is a string, it's a file name. */
714 else if (CONSP (object
))
716 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
717 HEIGHT must be ints > 0, and DATA must be string large
718 enough to hold a bitmap of the specified size. */
719 Lisp_Object width
, height
, data
;
721 height
= width
= data
= Qnil
;
725 width
= XCAR (object
);
726 object
= XCDR (object
);
729 height
= XCAR (object
);
730 object
= XCDR (object
);
732 data
= XCAR (object
);
737 && RANGED_INTEGERP (1, width
, INT_MAX
)
738 && RANGED_INTEGERP (1, height
, INT_MAX
))
740 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
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
)
1522 int size
, avgwidth
IF_LINT (= 0);
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_id
< 0
1557 : FACE_FROM_ID (f
, face_id
));
1559 if (width_face
&& width_face
->font
)
1561 size
= width_face
->font
->pixel_size
;
1562 avgwidth
= width_face
->font
->average_width
;
1566 size
= FRAME_FONT (f
)->pixel_size
;
1567 avgwidth
= FRAME_FONT (f
)->average_width
;
1570 avgwidth
*= XINT (width
);
1573 Lisp_Object font_spec
= font_spec_from_name (pattern
);
1574 if (!FONTP (font_spec
))
1575 signal_error ("Invalid font name", pattern
);
1579 Ffont_put (font_spec
, QCsize
, make_number (size
));
1580 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1582 Lisp_Object fonts
= Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1583 for (Lisp_Object tail
= fonts
; CONSP (tail
); tail
= XCDR (tail
))
1585 Lisp_Object font_entity
;
1587 font_entity
= XCAR (tail
);
1588 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1589 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1590 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1592 /* This is a scalable font. For backward compatibility,
1593 we set the specified size. */
1594 font_entity
= copy_font_spec (font_entity
);
1595 ASET (font_entity
, FONT_SIZE_INDEX
,
1596 AREF (font_spec
, FONT_SIZE_INDEX
));
1598 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1601 /* We don't have to check fontsets. */
1603 Lisp_Object fontsets
= list_fontsets (f
, pattern
, size
);
1604 return CALLN (Fnconc
, fonts
, fontsets
);
1607 #endif /* HAVE_WINDOW_SYSTEM */
1610 /***********************************************************************
1612 ***********************************************************************/
1614 /* Access face attributes of face LFACE, a Lisp vector. */
1616 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1617 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1618 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1619 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1620 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1621 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1622 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1623 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1624 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1625 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1626 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1627 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1628 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1629 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1630 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1631 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1632 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1633 #define LFACE_DISTANT_FOREGROUND(LFACE) \
1634 AREF ((LFACE), LFACE_DISTANT_FOREGROUND_INDEX)
1636 /* True if LFACE is a Lisp face. A Lisp face is a vector of size
1637 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1639 #define LFACEP(LFACE) \
1641 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1642 && EQ (AREF (LFACE, 0), Qface))
1647 /* Check consistency of Lisp face attribute vector ATTRS. */
1650 check_lface_attrs (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1652 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1653 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1654 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1655 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1656 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1657 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1658 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1659 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1660 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1661 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1662 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1663 || NUMBERP (attrs
[LFACE_HEIGHT_INDEX
])
1664 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1665 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1666 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1667 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1668 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1669 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1670 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1671 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1672 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1673 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1674 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1675 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1676 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1677 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1678 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1679 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1680 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1681 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1682 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1683 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1684 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1685 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1686 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1687 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1688 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1689 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1690 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1691 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1692 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1693 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1694 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1695 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1696 eassert (UNSPECIFIEDP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
1697 || IGNORE_DEFFACE_P (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
1698 || STRINGP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
]));
1699 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1700 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1701 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1702 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1703 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1704 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1705 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1706 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1707 #ifdef HAVE_WINDOW_SYSTEM
1708 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1709 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1710 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1711 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1712 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1713 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1714 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1715 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1716 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1717 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1722 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1725 check_lface (Lisp_Object lface
)
1729 eassert (LFACEP (lface
));
1730 check_lface_attrs (XVECTOR (lface
)->contents
);
1734 #else /* not GLYPH_DEBUG */
1736 #define check_lface_attrs(attrs) (void) 0
1737 #define check_lface(lface) (void) 0
1739 #endif /* GLYPH_DEBUG */
1743 /* Face-merge cycle checking. */
1745 enum named_merge_point_kind
1747 NAMED_MERGE_POINT_NORMAL
,
1748 NAMED_MERGE_POINT_REMAP
1751 /* A `named merge point' is simply a point during face-merging where we
1752 look up a face by name. We keep a stack of which named lookups we're
1753 currently processing so that we can easily detect cycles, using a
1754 linked- list of struct named_merge_point structures, typically
1755 allocated on the stack frame of the named lookup functions which are
1756 active (so no consing is required). */
1757 struct named_merge_point
1759 Lisp_Object face_name
;
1760 enum named_merge_point_kind named_merge_point_kind
;
1761 struct named_merge_point
*prev
;
1765 /* If a face merging cycle is detected for FACE_NAME, return false,
1766 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1767 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1768 pointed to by NAMED_MERGE_POINTS, and return true. */
1771 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1772 Lisp_Object face_name
,
1773 enum named_merge_point_kind named_merge_point_kind
,
1774 struct named_merge_point
**named_merge_points
)
1776 struct named_merge_point
*prev
;
1778 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1779 if (EQ (face_name
, prev
->face_name
))
1781 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1782 /* A cycle, so fail. */
1784 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1785 /* A remap `hides ' any previous normal merge points
1786 (because the remap means that it's actually different face),
1787 so as we know the current merge point must be normal, we
1788 can just assume it's OK. */
1792 new_named_merge_point
->face_name
= face_name
;
1793 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1794 new_named_merge_point
->prev
= *named_merge_points
;
1796 *named_merge_points
= new_named_merge_point
;
1802 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1803 to make it a symbol. If FACE_NAME is an alias for another face,
1804 return that face's name.
1806 Return default face in case of errors. */
1809 resolve_face_name (Lisp_Object face_name
, bool signal_p
)
1811 Lisp_Object orig_face
;
1812 Lisp_Object tortoise
, hare
;
1814 if (STRINGP (face_name
))
1815 face_name
= Fintern (face_name
, Qnil
);
1817 if (NILP (face_name
) || !SYMBOLP (face_name
))
1820 orig_face
= face_name
;
1821 tortoise
= hare
= face_name
;
1826 hare
= Fget (hare
, Qface_alias
);
1827 if (NILP (hare
) || !SYMBOLP (hare
))
1831 hare
= Fget (hare
, Qface_alias
);
1832 if (NILP (hare
) || !SYMBOLP (hare
))
1835 tortoise
= Fget (tortoise
, Qface_alias
);
1836 if (EQ (hare
, tortoise
))
1839 xsignal1 (Qcircular_list
, orig_face
);
1848 /* Return the face definition of FACE_NAME on frame F. F null means
1849 return the definition for new frames. FACE_NAME may be a string or
1850 a symbol (apparently Emacs 20.2 allowed strings as face names in
1851 face text properties; Ediff uses that).
1852 If SIGNAL_P, signal an error if FACE_NAME is not a valid face name.
1853 Otherwise, value is nil if FACE_NAME is not a valid face name. */
1855 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
1861 lface
= assq_no_quit (face_name
, f
->face_alist
);
1863 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
1866 lface
= XCDR (lface
);
1868 signal_error ("Invalid face", face_name
);
1870 check_lface (lface
);
1875 /* Return the face definition of FACE_NAME on frame F. F null means
1876 return the definition for new frames. FACE_NAME may be a string or
1877 a symbol (apparently Emacs 20.2 allowed strings as face names in
1878 face text properties; Ediff uses that). If FACE_NAME is an alias
1879 for another face, return that face's definition.
1880 If SIGNAL_P, signal an error if FACE_NAME is not a valid face name.
1881 Otherwise, value is nil if FACE_NAME is not a valid face name. */
1883 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, bool signal_p
)
1885 face_name
= resolve_face_name (face_name
, signal_p
);
1886 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1890 /* Get face attributes of face FACE_NAME from frame-local faces on
1891 frame F. Store the resulting attributes in ATTRS which must point
1892 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE.
1893 If SIGNAL_P, signal an error if FACE_NAME does not name a face.
1894 Otherwise, return true iff FACE_NAME is a face. */
1897 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
1898 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
1903 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1906 memcpy (attrs
, XVECTOR (lface
)->contents
,
1907 LFACE_VECTOR_SIZE
* sizeof *attrs
);
1909 return !NILP (lface
);
1912 /* Get face attributes of face FACE_NAME from frame-local faces on frame
1913 F. Store the resulting attributes in ATTRS which must point to a
1914 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
1915 alias for another face, use that face's definition.
1916 If SIGNAL_P, signal an error if FACE_NAME does not name a face.
1917 Otherwise, return true iff FACE_NAME is a face. */
1920 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
1921 Lisp_Object attrs
[LFACE_VECTOR_SIZE
], bool signal_p
,
1922 struct named_merge_point
*named_merge_points
)
1924 Lisp_Object face_remapping
;
1926 face_name
= resolve_face_name (face_name
, signal_p
);
1928 /* See if SYMBOL has been remapped to some other face (usually this
1929 is done buffer-locally). */
1930 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
1931 if (CONSP (face_remapping
))
1933 struct named_merge_point named_merge_point
;
1935 if (push_named_merge_point (&named_merge_point
,
1936 face_name
, NAMED_MERGE_POINT_REMAP
,
1937 &named_merge_points
))
1941 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
1942 attrs
[i
] = Qunspecified
;
1944 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
1945 signal_p
, named_merge_points
);
1949 /* Default case, no remapping. */
1950 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
1954 /* True iff all attributes in face attribute vector ATTRS are
1955 specified, i.e. are non-nil. */
1958 lface_fully_specified_p (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1962 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
1963 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
1964 && i
!= LFACE_DISTANT_FOREGROUND_INDEX
)
1965 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
1968 return i
== LFACE_VECTOR_SIZE
;
1971 #ifdef HAVE_WINDOW_SYSTEM
1973 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
1974 If FORCE_P, set only unspecified attributes of LFACE. The
1975 exception is `font' attribute. It is set to FONT_OBJECT regardless
1979 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
1980 Lisp_Object font_object
, bool force_p
)
1983 struct font
*font
= XFONT_OBJECT (font_object
);
1985 /* Set attributes only if unspecified, otherwise face defaults for
1986 new frames would never take effect. If the font doesn't have a
1987 specific property, set a normal value for that. */
1989 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
1991 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
1993 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
1996 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
1998 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2000 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2003 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2005 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, FRAME_RES_Y (f
));
2008 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2011 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2013 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2014 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2016 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2018 val
= FONT_SLANT_FOR_FACE (font_object
);
2019 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2021 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2023 val
= FONT_WIDTH_FOR_FACE (font_object
);
2024 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2027 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2030 #endif /* HAVE_WINDOW_SYSTEM */
2033 /* Merges the face height FROM with the face height TO, and returns the
2034 merged height. If FROM is an invalid height, then INVALID is
2035 returned instead. FROM and TO may be either absolute face heights or
2036 `relative' heights; the returned value is always an absolute height
2037 unless both FROM and TO are relative. */
2040 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2042 Lisp_Object result
= invalid
;
2044 if (INTEGERP (from
))
2045 /* FROM is absolute, just use it as is. */
2047 else if (FLOATP (from
))
2048 /* FROM is a scale, use it to adjust TO. */
2051 /* relative X absolute => absolute */
2052 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2053 else if (FLOATP (to
))
2054 /* relative X relative => relative */
2055 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2056 else if (UNSPECIFIEDP (to
))
2059 else if (FUNCTIONP (from
))
2060 /* FROM is a function, which use to adjust TO. */
2062 /* Call function with current height as argument.
2063 From is the new height. */
2064 result
= safe_call1 (from
, to
);
2066 /* Ensure that if TO was absolute, so is the result. */
2067 if (INTEGERP (to
) && !INTEGERP (result
))
2075 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2076 store the resulting attributes in TO, which must be already be
2077 completely specified and contain only absolute attributes. Every
2078 specified attribute of FROM overrides the corresponding attribute of
2079 TO; relative attributes in FROM are merged with the absolute value in
2080 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2081 loops in face inheritance/remapping; it should be 0 when called from
2085 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2086 struct named_merge_point
*named_merge_points
)
2089 Lisp_Object font
= Qnil
;
2091 /* If FROM inherits from some other faces, merge their attributes into
2092 TO before merging FROM's direct attributes. Note that an :inherit
2093 attribute of `unspecified' is the same as one of nil; we never
2094 merge :inherit attributes, so nil is more correct, but lots of
2095 other code uses `unspecified' as a generic value for face attributes. */
2096 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2097 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2098 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, false, named_merge_points
);
2100 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2102 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2103 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2105 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2106 to
[LFACE_FONT_INDEX
] = font
;
2109 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2110 if (!UNSPECIFIEDP (from
[i
]))
2112 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2114 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2115 font_clear_prop (to
, FONT_SIZE_INDEX
);
2117 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2120 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2121 font_clear_prop (to
,
2122 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2123 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2124 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2125 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2126 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2127 : FONT_SLANT_INDEX
));
2131 /* If FROM specifies a font spec, make its contents take precedence
2132 over :family and other attributes. This is needed for face
2133 remapping using :font to work. */
2137 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2138 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2139 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2140 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2141 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2142 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2143 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2144 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2145 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2146 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2147 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2150 /* TO is always an absolute face, which should inherit from nothing.
2151 We blindly copy the :inherit attribute above and fix it up here. */
2152 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2155 /* Merge the named face FACE_NAME on frame F, into the vector of face
2156 attributes TO. Use NAMED_MERGE_POINTS to detect loops in face
2157 inheritance. Return true if FACE_NAME is a valid face name and
2158 merging succeeded. */
2161 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2162 struct named_merge_point
*named_merge_points
)
2164 struct named_merge_point named_merge_point
;
2166 if (push_named_merge_point (&named_merge_point
,
2167 face_name
, NAMED_MERGE_POINT_NORMAL
,
2168 &named_merge_points
))
2170 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2171 bool ok
= get_lface_attributes (f
, face_name
, from
, false,
2172 named_merge_points
);
2175 merge_face_vectors (f
, from
, to
, named_merge_points
);
2184 /* Merge face attributes from the lisp `face reference' FACE_REF on
2185 frame F into the face attribute vector TO. If ERR_MSGS,
2186 problems with FACE_REF cause an error message to be shown. Return
2187 true if no errors occurred (regardless of the value of ERR_MSGS).
2188 Use NAMED_MERGE_POINTS to detect loops in face inheritance or
2189 list structure; it may be 0 for most callers.
2191 FACE_REF may be a single face specification or a list of such
2192 specifications. Each face specification can be:
2194 1. A symbol or string naming a Lisp face.
2196 2. A property list of the form (KEYWORD VALUE ...) where each
2197 KEYWORD is a face attribute name, and value is an appropriate value
2200 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2201 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2202 for compatibility with 20.2.
2204 Face specifications earlier in lists take precedence over later
2208 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2209 bool err_msgs
, struct named_merge_point
*named_merge_points
)
2211 bool ok
= true; /* Succeed without an error? */
2213 if (CONSP (face_ref
))
2215 Lisp_Object first
= XCAR (face_ref
);
2217 if (EQ (first
, Qforeground_color
)
2218 || EQ (first
, Qbackground_color
))
2220 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2221 . COLOR). COLOR must be a string. */
2222 Lisp_Object color_name
= XCDR (face_ref
);
2223 Lisp_Object color
= first
;
2225 if (STRINGP (color_name
))
2227 if (EQ (color
, Qforeground_color
))
2228 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2230 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2235 add_to_log ("Invalid face color %S", color_name
);
2239 else if (SYMBOLP (first
)
2240 && *SDATA (SYMBOL_NAME (first
)) == ':')
2242 /* Assume this is the property list form. */
2243 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2245 Lisp_Object keyword
= XCAR (face_ref
);
2246 Lisp_Object value
= XCAR (XCDR (face_ref
));
2249 /* Specifying `unspecified' is a no-op. */
2250 if (EQ (value
, Qunspecified
))
2252 else if (EQ (keyword
, QCfamily
))
2254 if (STRINGP (value
))
2256 to
[LFACE_FAMILY_INDEX
] = value
;
2257 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2262 else if (EQ (keyword
, QCfoundry
))
2264 if (STRINGP (value
))
2266 to
[LFACE_FOUNDRY_INDEX
] = value
;
2267 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2272 else if (EQ (keyword
, QCheight
))
2274 Lisp_Object new_height
=
2275 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2277 if (! NILP (new_height
))
2279 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2280 font_clear_prop (to
, FONT_SIZE_INDEX
);
2285 else if (EQ (keyword
, QCweight
))
2287 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2289 to
[LFACE_WEIGHT_INDEX
] = value
;
2290 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2295 else if (EQ (keyword
, QCslant
))
2297 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2299 to
[LFACE_SLANT_INDEX
] = value
;
2300 font_clear_prop (to
, FONT_SLANT_INDEX
);
2305 else if (EQ (keyword
, QCunderline
))
2311 to
[LFACE_UNDERLINE_INDEX
] = value
;
2315 else if (EQ (keyword
, QCoverline
))
2320 to
[LFACE_OVERLINE_INDEX
] = value
;
2324 else if (EQ (keyword
, QCstrike_through
))
2329 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2333 else if (EQ (keyword
, QCbox
))
2336 value
= make_number (1);
2337 if (INTEGERP (value
)
2341 to
[LFACE_BOX_INDEX
] = value
;
2345 else if (EQ (keyword
, QCinverse_video
)
2346 || EQ (keyword
, QCreverse_video
))
2348 if (EQ (value
, Qt
) || NILP (value
))
2349 to
[LFACE_INVERSE_INDEX
] = value
;
2353 else if (EQ (keyword
, QCforeground
))
2355 if (STRINGP (value
))
2356 to
[LFACE_FOREGROUND_INDEX
] = value
;
2360 else if (EQ (keyword
, QCdistant_foreground
))
2362 if (STRINGP (value
))
2363 to
[LFACE_DISTANT_FOREGROUND_INDEX
] = value
;
2367 else if (EQ (keyword
, QCbackground
))
2369 if (STRINGP (value
))
2370 to
[LFACE_BACKGROUND_INDEX
] = value
;
2374 else if (EQ (keyword
, QCstipple
))
2376 #if defined (HAVE_WINDOW_SYSTEM)
2377 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2378 if (!NILP (pixmap_p
))
2379 to
[LFACE_STIPPLE_INDEX
] = value
;
2382 #endif /* HAVE_WINDOW_SYSTEM */
2384 else if (EQ (keyword
, QCwidth
))
2386 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2388 to
[LFACE_SWIDTH_INDEX
] = value
;
2389 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2394 else if (EQ (keyword
, QCfont
))
2397 to
[LFACE_FONT_INDEX
] = value
;
2401 else if (EQ (keyword
, QCinherit
))
2403 /* This is not really very useful; it's just like a
2404 normal face reference. */
2405 if (! merge_face_ref (f
, value
, to
,
2406 err_msgs
, named_merge_points
))
2414 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2418 face_ref
= XCDR (XCDR (face_ref
));
2423 /* This is a list of face refs. Those at the beginning of the
2424 list take precedence over what follows, so we have to merge
2425 from the end backwards. */
2426 Lisp_Object next
= XCDR (face_ref
);
2429 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2431 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2437 /* FACE_REF ought to be a face name. */
2438 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2439 if (!ok
&& err_msgs
)
2440 add_to_log ("Invalid face reference: %s", face_ref
);
2447 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2448 Sinternal_make_lisp_face
, 1, 2, 0,
2449 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2450 If FACE was not known as a face before, create a new one.
2451 If optional argument FRAME is specified, make a frame-local face
2452 for that frame. Otherwise operate on the global face definition.
2453 Value is a vector of face attributes. */)
2454 (Lisp_Object face
, Lisp_Object frame
)
2456 Lisp_Object global_lface
, lface
;
2460 CHECK_SYMBOL (face
);
2461 global_lface
= lface_from_face_name (NULL
, face
, false);
2465 CHECK_LIVE_FRAME (frame
);
2467 lface
= lface_from_face_name (f
, face
, false);
2470 f
= NULL
, lface
= Qnil
;
2472 /* Add a global definition if there is none. */
2473 if (NILP (global_lface
))
2475 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2477 ASET (global_lface
, 0, Qface
);
2478 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2479 Vface_new_frame_defaults
);
2481 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2482 face id to Lisp face is given by the vector lface_id_to_name.
2483 The mapping from Lisp face to Lisp face id is given by the
2484 property `face' of the Lisp face name. */
2485 if (next_lface_id
== lface_id_to_name_size
)
2487 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2488 sizeof *lface_id_to_name
);
2490 lface_id_to_name
[next_lface_id
] = face
;
2491 Fput (face
, Qface
, make_number (next_lface_id
));
2495 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2496 ASET (global_lface
, i
, Qunspecified
);
2498 /* Add a frame-local definition. */
2503 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2505 ASET (lface
, 0, Qface
);
2506 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2509 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2510 ASET (lface
, i
, Qunspecified
);
2513 lface
= global_lface
;
2515 /* Changing a named face means that all realized faces depending on
2516 that face are invalid. Since we cannot tell which realized faces
2517 depend on the face, make sure they are all removed. This is done
2518 by setting face_change. The next call to init_iterator will then
2519 free realized faces. */
2520 if (NILP (Fget (face
, Qface_no_inherit
)))
2524 f
->face_change
= true;
2530 windows_or_buffers_changed
= 54;
2534 eassert (LFACEP (lface
));
2535 check_lface (lface
);
2540 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2541 Sinternal_lisp_face_p
, 1, 2, 0,
2542 doc
: /* Return non-nil if FACE names a face.
2543 FACE should be a symbol or string.
2544 If optional second argument FRAME is non-nil, check for the
2545 existence of a frame-local face with name FACE on that frame.
2546 Otherwise check for the existence of a global face. */)
2547 (Lisp_Object face
, Lisp_Object frame
)
2551 face
= resolve_face_name (face
, true);
2555 CHECK_LIVE_FRAME (frame
);
2556 lface
= lface_from_face_name (XFRAME (frame
), face
, false);
2559 lface
= lface_from_face_name (NULL
, face
, false);
2565 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2566 Sinternal_copy_lisp_face
, 4, 4, 0,
2567 doc
: /* Copy face FROM to TO.
2568 If FRAME is t, copy the global face definition of FROM.
2569 Otherwise, copy the frame-local definition of FROM on FRAME.
2570 If NEW-FRAME is a frame, copy that data into the frame-local
2571 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2572 FRAME controls where the data is copied to.
2574 The value is TO. */)
2575 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2577 Lisp_Object lface
, copy
;
2580 CHECK_SYMBOL (from
);
2585 /* Copy global definition of FROM. We don't make copies of
2586 strings etc. because 20.2 didn't do it either. */
2587 lface
= lface_from_face_name (NULL
, from
, true);
2588 copy
= Finternal_make_lisp_face (to
, Qnil
);
2593 /* Copy frame-local definition of FROM. */
2594 if (NILP (new_frame
))
2596 CHECK_LIVE_FRAME (frame
);
2597 CHECK_LIVE_FRAME (new_frame
);
2598 lface
= lface_from_face_name (XFRAME (frame
), from
, true);
2599 copy
= Finternal_make_lisp_face (to
, new_frame
);
2600 f
= XFRAME (new_frame
);
2603 vcopy (copy
, 0, XVECTOR (lface
)->contents
, LFACE_VECTOR_SIZE
);
2605 /* Changing a named face means that all realized faces depending on
2606 that face are invalid. Since we cannot tell which realized faces
2607 depend on the face, make sure they are all removed. This is done
2608 by setting face_change. The next call to init_iterator will then
2609 free realized faces. */
2610 if (NILP (Fget (to
, Qface_no_inherit
)))
2614 f
->face_change
= true;
2620 windows_or_buffers_changed
= 55;
2628 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2629 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2630 doc
: /* Set attribute ATTR of FACE to VALUE.
2631 FRAME being a frame means change the face on that frame.
2632 FRAME nil means change the face of the selected frame.
2633 FRAME t means change the default for new frames.
2634 FRAME 0 means change the face on all frames, and change the default
2636 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2639 Lisp_Object old_value
= Qnil
;
2640 /* Set one of enum font_property_index (> 0) if ATTR is one of
2641 font-related attributes other than QCfont and QCfontset. */
2642 enum font_property_index prop_index
= 0;
2645 CHECK_SYMBOL (face
);
2646 CHECK_SYMBOL (attr
);
2648 face
= resolve_face_name (face
, true);
2650 /* If FRAME is 0, change face on all frames, and change the
2651 default for new frames. */
2652 if (INTEGERP (frame
) && XINT (frame
) == 0)
2655 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2656 FOR_EACH_FRAME (tail
, frame
)
2657 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2661 /* Set lface to the Lisp attribute vector of FACE. */
2665 lface
= lface_from_face_name (NULL
, face
, true);
2667 /* When updating face-new-frame-defaults, we put :ignore-defface
2668 where the caller wants `unspecified'. This forces the frame
2669 defaults to ignore the defface value. Otherwise, the defface
2670 will take effect, which is generally not what is intended.
2671 The value of that attribute will be inherited from some other
2672 face during face merging. See internal_merge_in_global_face. */
2673 if (UNSPECIFIEDP (value
))
2674 value
= QCignore_defface
;
2679 frame
= selected_frame
;
2682 CHECK_LIVE_FRAME (frame
);
2683 lface
= lface_from_face_name (f
, face
, false);
2685 /* If a frame-local face doesn't exist yet, create one. */
2687 lface
= Finternal_make_lisp_face (face
, frame
);
2690 if (EQ (attr
, QCfamily
))
2692 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2694 CHECK_STRING (value
);
2695 if (SCHARS (value
) == 0)
2696 signal_error ("Invalid face family", value
);
2698 old_value
= LFACE_FAMILY (lface
);
2699 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2700 prop_index
= FONT_FAMILY_INDEX
;
2702 else if (EQ (attr
, QCfoundry
))
2704 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2706 CHECK_STRING (value
);
2707 if (SCHARS (value
) == 0)
2708 signal_error ("Invalid face foundry", value
);
2710 old_value
= LFACE_FOUNDRY (lface
);
2711 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2712 prop_index
= FONT_FOUNDRY_INDEX
;
2714 else if (EQ (attr
, QCheight
))
2716 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2718 if (EQ (face
, Qdefault
))
2720 /* The default face must have an absolute size. */
2721 if (!INTEGERP (value
) || XINT (value
) <= 0)
2722 signal_error ("Default face height not absolute and positive",
2727 /* For non-default faces, do a test merge with a random
2728 height to see if VALUE's ok. */
2729 Lisp_Object test
= merge_face_heights (value
,
2732 if (!INTEGERP (test
) || XINT (test
) <= 0)
2733 signal_error ("Face height does not produce a positive integer",
2738 old_value
= LFACE_HEIGHT (lface
);
2739 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2740 prop_index
= FONT_SIZE_INDEX
;
2742 else if (EQ (attr
, QCweight
))
2744 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2746 CHECK_SYMBOL (value
);
2747 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2748 signal_error ("Invalid face weight", value
);
2750 old_value
= LFACE_WEIGHT (lface
);
2751 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2752 prop_index
= FONT_WEIGHT_INDEX
;
2754 else if (EQ (attr
, QCslant
))
2756 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2758 CHECK_SYMBOL (value
);
2759 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2760 signal_error ("Invalid face slant", value
);
2762 old_value
= LFACE_SLANT (lface
);
2763 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2764 prop_index
= FONT_SLANT_INDEX
;
2766 else if (EQ (attr
, QCunderline
))
2768 bool valid_p
= false;
2770 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2772 else if (NILP (value
) || EQ (value
, Qt
))
2774 else if (STRINGP (value
) && SCHARS (value
) > 0)
2776 else if (CONSP (value
))
2778 Lisp_Object key
, val
, list
;
2781 /* FIXME? This errs on the side of acceptance. Eg it accepts:
2782 (defface foo '((t :underline 'foo) "doc")
2783 Maybe this is intentional, maybe it isn't.
2784 Non-nil symbols other than t are not documented as being valid.
2785 Eg compare with inverse-video, which explicitly rejects them.
2789 while (!NILP (CAR_SAFE(list
)))
2791 key
= CAR_SAFE (list
);
2792 list
= CDR_SAFE (list
);
2793 val
= CAR_SAFE (list
);
2794 list
= CDR_SAFE (list
);
2796 if (NILP (key
) || NILP (val
))
2802 else if (EQ (key
, QCcolor
)
2803 && !(EQ (val
, Qforeground_color
)
2804 || (STRINGP (val
) && SCHARS (val
) > 0)))
2810 else if (EQ (key
, QCstyle
)
2811 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2820 signal_error ("Invalid face underline", value
);
2822 old_value
= LFACE_UNDERLINE (lface
);
2823 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2825 else if (EQ (attr
, QCoverline
))
2827 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2828 if ((SYMBOLP (value
)
2830 && !EQ (value
, Qnil
))
2831 /* Overline color. */
2833 && SCHARS (value
) == 0))
2834 signal_error ("Invalid face overline", value
);
2836 old_value
= LFACE_OVERLINE (lface
);
2837 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2839 else if (EQ (attr
, QCstrike_through
))
2841 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2842 if ((SYMBOLP (value
)
2844 && !EQ (value
, Qnil
))
2845 /* Strike-through color. */
2847 && SCHARS (value
) == 0))
2848 signal_error ("Invalid face strike-through", value
);
2850 old_value
= LFACE_STRIKE_THROUGH (lface
);
2851 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2853 else if (EQ (attr
, QCbox
))
2857 /* Allow t meaning a simple box of width 1 in foreground color
2860 value
= make_number (1);
2862 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2864 else if (NILP (value
))
2866 else if (INTEGERP (value
))
2867 valid_p
= XINT (value
) != 0;
2868 else if (STRINGP (value
))
2869 valid_p
= SCHARS (value
) > 0;
2870 else if (CONSP (value
))
2886 if (EQ (k
, QCline_width
))
2888 if (!INTEGERP (v
) || XINT (v
) == 0)
2891 else if (EQ (k
, QCcolor
))
2893 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
2896 else if (EQ (k
, QCstyle
))
2898 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
2905 valid_p
= NILP (tem
);
2911 signal_error ("Invalid face box", value
);
2913 old_value
= LFACE_BOX (lface
);
2914 ASET (lface
, LFACE_BOX_INDEX
, value
);
2916 else if (EQ (attr
, QCinverse_video
)
2917 || EQ (attr
, QCreverse_video
))
2919 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2921 CHECK_SYMBOL (value
);
2922 if (!EQ (value
, Qt
) && !NILP (value
))
2923 signal_error ("Invalid inverse-video face attribute value", value
);
2925 old_value
= LFACE_INVERSE (lface
);
2926 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
2928 else if (EQ (attr
, QCforeground
))
2930 /* Compatibility with 20.x. */
2932 value
= Qunspecified
;
2933 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2935 /* Don't check for valid color names here because it depends
2936 on the frame (display) whether the color will be valid
2937 when the face is realized. */
2938 CHECK_STRING (value
);
2939 if (SCHARS (value
) == 0)
2940 signal_error ("Empty foreground color value", value
);
2942 old_value
= LFACE_FOREGROUND (lface
);
2943 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
2945 else if (EQ (attr
, QCdistant_foreground
))
2947 /* Compatibility with 20.x. */
2949 value
= Qunspecified
;
2950 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2952 /* Don't check for valid color names here because it depends
2953 on the frame (display) whether the color will be valid
2954 when the face is realized. */
2955 CHECK_STRING (value
);
2956 if (SCHARS (value
) == 0)
2957 signal_error ("Empty distant-foreground color value", value
);
2959 old_value
= LFACE_DISTANT_FOREGROUND (lface
);
2960 ASET (lface
, LFACE_DISTANT_FOREGROUND_INDEX
, value
);
2962 else if (EQ (attr
, QCbackground
))
2964 /* Compatibility with 20.x. */
2966 value
= Qunspecified
;
2967 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2969 /* Don't check for valid color names here because it depends
2970 on the frame (display) whether the color will be valid
2971 when the face is realized. */
2972 CHECK_STRING (value
);
2973 if (SCHARS (value
) == 0)
2974 signal_error ("Empty background color value", value
);
2976 old_value
= LFACE_BACKGROUND (lface
);
2977 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
2979 else if (EQ (attr
, QCstipple
))
2981 #if defined (HAVE_WINDOW_SYSTEM)
2982 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
2984 && NILP (Fbitmap_spec_p (value
)))
2985 signal_error ("Invalid stipple attribute", value
);
2986 old_value
= LFACE_STIPPLE (lface
);
2987 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
2988 #endif /* HAVE_WINDOW_SYSTEM */
2990 else if (EQ (attr
, QCwidth
))
2992 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2994 CHECK_SYMBOL (value
);
2995 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
2996 signal_error ("Invalid face width", value
);
2998 old_value
= LFACE_SWIDTH (lface
);
2999 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3000 prop_index
= FONT_WIDTH_INDEX
;
3002 else if (EQ (attr
, QCfont
))
3004 #ifdef HAVE_WINDOW_SYSTEM
3005 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (f
))
3007 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3011 old_value
= LFACE_FONT (lface
);
3012 if (! FONTP (value
))
3014 if (STRINGP (value
))
3016 Lisp_Object name
= value
;
3017 int fontset
= fs_query_fontset (name
, 0);
3020 name
= fontset_ascii (fontset
);
3021 value
= font_spec_from_name (name
);
3023 signal_error ("Invalid font name", name
);
3026 signal_error ("Invalid font or font-spec", value
);
3029 f1
= XFRAME (selected_frame
);
3031 f1
= XFRAME (frame
);
3034 If frame is t, and selected frame is a tty frame, the font
3035 can't be realized. An improvement would be to loop over frames
3036 for a non-tty frame and use that. See discussion in Bug#18573.
3037 For a daemon, frame may be an initial frame (Bug#18869). */
3038 if (FRAME_WINDOW_P (f1
))
3040 if (! FONT_OBJECT_P (value
))
3042 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3043 Lisp_Object font_object
;
3045 font_object
= font_load_for_lface (f1
, attrs
, value
);
3046 if (NILP (font_object
))
3047 signal_error ("Font not available", value
);
3048 value
= font_object
;
3050 set_lface_from_font (f1
, lface
, value
, true);
3051 f1
->face_change
= 1;
3055 ASET (lface
, LFACE_FONT_INDEX
, value
);
3057 #endif /* HAVE_WINDOW_SYSTEM */
3059 else if (EQ (attr
, QCfontset
))
3061 #ifdef HAVE_WINDOW_SYSTEM
3062 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (f
))
3066 old_value
= LFACE_FONTSET (lface
);
3067 tmp
= Fquery_fontset (value
, Qnil
);
3069 signal_error ("Invalid fontset name", value
);
3070 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3072 #endif /* HAVE_WINDOW_SYSTEM */
3074 else if (EQ (attr
, QCinherit
))
3077 if (SYMBOLP (value
))
3080 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3081 if (!SYMBOLP (XCAR (tail
)))
3084 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3086 signal_error ("Invalid face inheritance", value
);
3088 else if (EQ (attr
, QCbold
))
3090 old_value
= LFACE_WEIGHT (lface
);
3091 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3092 prop_index
= FONT_WEIGHT_INDEX
;
3094 else if (EQ (attr
, QCitalic
))
3097 old_value
= LFACE_SLANT (lface
);
3098 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3099 prop_index
= FONT_SLANT_INDEX
;
3102 signal_error ("Invalid face attribute name", attr
);
3106 /* If a font-related attribute other than QCfont and QCfontset
3107 is specified, and if the original QCfont attribute has a font
3108 (font-spec or font-object), set the corresponding property in
3109 the font to nil so that the font selector doesn't think that
3110 the attribute is mandatory. Also, clear the average
3112 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3115 /* Changing a named face means that all realized faces depending on
3116 that face are invalid. Since we cannot tell which realized faces
3117 depend on the face, make sure they are all removed. This is done
3118 by setting face_change. The next call to init_iterator will then
3119 free realized faces. */
3121 && NILP (Fget (face
, Qface_no_inherit
))
3122 && NILP (Fequal (old_value
, value
)))
3124 f
->face_change
= true;
3128 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3129 && NILP (Fequal (old_value
, value
)))
3135 if (EQ (face
, Qdefault
))
3137 #ifdef HAVE_WINDOW_SYSTEM
3138 /* Changed font-related attributes of the `default' face are
3139 reflected in changed `font' frame parameters. */
3141 && (prop_index
|| EQ (attr
, QCfont
))
3142 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3143 set_font_frame_param (frame
, lface
);
3145 #endif /* HAVE_WINDOW_SYSTEM */
3147 if (EQ (attr
, QCforeground
))
3148 param
= Qforeground_color
;
3149 else if (EQ (attr
, QCbackground
))
3150 param
= Qbackground_color
;
3152 #ifdef HAVE_WINDOW_SYSTEM
3154 else if (EQ (face
, Qscroll_bar
))
3156 /* Changing the colors of `scroll-bar' sets frame parameters
3157 `scroll-bar-foreground' and `scroll-bar-background'. */
3158 if (EQ (attr
, QCforeground
))
3159 param
= Qscroll_bar_foreground
;
3160 else if (EQ (attr
, QCbackground
))
3161 param
= Qscroll_bar_background
;
3163 #endif /* not HAVE_NTGUI */
3164 else if (EQ (face
, Qborder
))
3166 /* Changing background color of `border' sets frame parameter
3168 if (EQ (attr
, QCbackground
))
3169 param
= Qborder_color
;
3171 else if (EQ (face
, Qcursor
))
3173 /* Changing background color of `cursor' sets frame parameter
3175 if (EQ (attr
, QCbackground
))
3176 param
= Qcursor_color
;
3178 else if (EQ (face
, Qmouse
))
3180 /* Changing background color of `mouse' sets frame parameter
3182 if (EQ (attr
, QCbackground
))
3183 param
= Qmouse_color
;
3185 #endif /* HAVE_WINDOW_SYSTEM */
3186 else if (EQ (face
, Qmenu
))
3188 /* Indicate that we have to update the menu bar when realizing
3189 faces on FRAME. FRAME t change the default for new frames.
3190 We do this by setting the flag in new face caches. */
3193 struct frame
*f
= XFRAME (frame
);
3194 if (FRAME_FACE_CACHE (f
) == NULL
)
3195 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3196 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= true;
3199 menu_face_changed_default
= true;
3205 /* Update `default-frame-alist', which is used for new frames. */
3207 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3210 /* Update the current frame's parameters. */
3213 cons
= XCAR (Vparam_value_alist
);
3214 XSETCAR (cons
, param
);
3215 XSETCDR (cons
, value
);
3216 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3225 /* Update the corresponding face when frame parameter PARAM on frame F
3226 has been assigned the value NEW_VALUE. */
3229 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3230 Lisp_Object new_value
)
3232 Lisp_Object face
= Qnil
;
3235 /* If there are no faces yet, give up. This is the case when called
3236 from Fx_create_frame, and we do the necessary things later in
3237 face-set-after-frame-defaults. */
3238 if (NILP (f
->face_alist
))
3241 if (EQ (param
, Qforeground_color
))
3244 lface
= lface_from_face_name (f
, face
, true);
3245 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3246 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3247 realize_basic_faces (f
);
3249 else if (EQ (param
, Qbackground_color
))
3253 /* Changing the background color might change the background
3254 mode, so that we have to load new defface specs.
3255 Call frame-set-background-mode to do that. */
3256 XSETFRAME (frame
, f
);
3257 call1 (Qframe_set_background_mode
, frame
);
3260 lface
= lface_from_face_name (f
, face
, true);
3261 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3262 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3263 realize_basic_faces (f
);
3265 #ifdef HAVE_WINDOW_SYSTEM
3266 else if (EQ (param
, Qborder_color
))
3269 lface
= lface_from_face_name (f
, face
, true);
3270 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3271 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3273 else if (EQ (param
, Qcursor_color
))
3276 lface
= lface_from_face_name (f
, face
, true);
3277 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3278 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3280 else if (EQ (param
, Qmouse_color
))
3283 lface
= lface_from_face_name (f
, face
, true);
3284 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3285 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3289 /* Changing a named face means that all realized faces depending on
3290 that face are invalid. Since we cannot tell which realized faces
3291 depend on the face, make sure they are all removed. This is done
3292 by setting face_change. The next call to init_iterator will then
3293 free realized faces. */
3295 && NILP (Fget (face
, Qface_no_inherit
)))
3297 f
->face_change
= true;
3303 #ifdef HAVE_WINDOW_SYSTEM
3305 /* Set the `font' frame parameter of FRAME determined from the
3306 font-object set in `default' face attributes LFACE. */
3309 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3311 struct frame
*f
= XFRAME (frame
);
3314 if (FRAME_WINDOW_P (f
)
3315 /* Don't do anything if the font is `unspecified'. This can
3316 happen during frame creation. */
3317 && (font
= LFACE_FONT (lface
),
3318 ! UNSPECIFIEDP (font
)))
3320 if (FONT_SPEC_P (font
))
3322 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3325 ASET (lface
, LFACE_FONT_INDEX
, font
);
3327 f
->default_face_done_p
= false;
3328 AUTO_FRAME_ARG (arg
, Qfont
, font
);
3329 Fmodify_frame_parameters (frame
, arg
);
3333 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3334 Sinternal_face_x_get_resource
, 2, 3, 0,
3335 doc
: /* Get the value of X resource RESOURCE, class CLASS.
3336 Returned value is for the display of frame FRAME. If FRAME is not
3337 specified or nil, use selected frame. This function exists because
3338 ordinary `x-get-resource' doesn't take a frame argument. */)
3339 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3341 Lisp_Object value
= Qnil
;
3344 CHECK_STRING (resource
);
3345 CHECK_STRING (class);
3346 f
= decode_live_frame (frame
);
3348 value
= display_x_get_resource (FRAME_DISPLAY_INFO (f
),
3349 resource
, class, Qnil
, Qnil
);
3355 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3356 If VALUE is "on" or "true", return t. If VALUE is "off" or
3357 "false", return nil. Otherwise, if SIGNAL_P, signal an
3358 error; if !SIGNAL_P, return 0. */
3361 face_boolean_x_resource_value (Lisp_Object value
, bool signal_p
)
3363 Lisp_Object result
= make_number (0);
3365 eassert (STRINGP (value
));
3367 if (xstrcasecmp (SSDATA (value
), "on") == 0
3368 || xstrcasecmp (SSDATA (value
), "true") == 0)
3370 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3371 || xstrcasecmp (SSDATA (value
), "false") == 0)
3373 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3374 result
= Qunspecified
;
3376 signal_error ("Invalid face attribute value from X resource", value
);
3382 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3383 Finternal_set_lisp_face_attribute_from_resource
,
3384 Sinternal_set_lisp_face_attribute_from_resource
,
3385 3, 4, 0, doc
: /* */)
3386 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3388 CHECK_SYMBOL (face
);
3389 CHECK_SYMBOL (attr
);
3390 CHECK_STRING (value
);
3392 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3393 value
= Qunspecified
;
3394 else if (EQ (attr
, QCheight
))
3396 value
= Fstring_to_number (value
, make_number (10));
3397 if (XINT (value
) <= 0)
3398 signal_error ("Invalid face height from X resource", value
);
3400 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3401 value
= face_boolean_x_resource_value (value
, true);
3402 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3403 value
= intern (SSDATA (value
));
3404 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3405 value
= face_boolean_x_resource_value (value
, true);
3406 else if (EQ (attr
, QCunderline
)
3407 || EQ (attr
, QCoverline
)
3408 || EQ (attr
, QCstrike_through
))
3410 Lisp_Object boolean_value
;
3412 /* If the result of face_boolean_x_resource_value is t or nil,
3413 VALUE does NOT specify a color. */
3414 boolean_value
= face_boolean_x_resource_value (value
, false);
3415 if (SYMBOLP (boolean_value
))
3416 value
= boolean_value
;
3418 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3419 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3421 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3424 #endif /* HAVE_WINDOW_SYSTEM */
3427 /***********************************************************************
3429 ***********************************************************************/
3431 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3433 /* Make menus on frame F appear as specified by the `menu' face. */
3436 x_update_menu_appearance (struct frame
*f
)
3438 struct x_display_info
*dpyinfo
= FRAME_DISPLAY_INFO (f
);
3442 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3447 ptrdiff_t bufsize
= sizeof line
;
3448 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, true);
3449 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3450 const char *myname
= SSDATA (Vx_resource_name
);
3451 bool changed_p
= false;
3453 const char *popup_path
= "popup_menu";
3455 const char *popup_path
= "menu.popup";
3458 if (STRINGP (LFACE_FOREGROUND (lface
)))
3460 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3462 SDATA (LFACE_FOREGROUND (lface
)));
3463 XrmPutLineResource (&rdb
, line
);
3464 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3465 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3466 XrmPutLineResource (&rdb
, line
);
3470 if (STRINGP (LFACE_BACKGROUND (lface
)))
3472 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3474 SDATA (LFACE_BACKGROUND (lface
)));
3475 XrmPutLineResource (&rdb
, line
);
3477 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3478 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3479 XrmPutLineResource (&rdb
, line
);
3484 /* On Solaris 5.8, it's been reported that the `menu' face
3485 can be unspecified here, during startup. Why this
3486 happens remains unknown. -- cyd */
3487 && FONTP (LFACE_FONT (lface
))
3488 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3489 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3490 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3491 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3492 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3493 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3495 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3497 const char *suffix
= "List";
3500 #if defined HAVE_X_I18N
3502 const char *suffix
= "Set";
3504 const char *suffix
= "";
3511 #if defined HAVE_X_I18N
3512 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3514 char *fontsetname
= SSDATA (xlfd
);
3516 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3517 myname
, suffix
, fontsetname
);
3518 XrmPutLineResource (&rdb
, line
);
3520 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3521 myname
, popup_path
, suffix
, fontsetname
);
3522 XrmPutLineResource (&rdb
, line
);
3524 if (fontsetname
!= SSDATA (xlfd
))
3525 xfree (fontsetname
);
3529 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3530 free_frame_menubar (f
);
3537 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3540 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3541 Sface_attribute_relative_p
,
3543 doc
: /* Check whether a face attribute value is relative.
3544 Specifically, this function returns t if the attribute ATTRIBUTE
3545 with the value VALUE is relative.
3547 A relative value is one that doesn't entirely override whatever is
3548 inherited from another face. For most possible attributes,
3549 the only relative value that users see is `unspecified'.
3550 However, for :height, floating point values are also relative. */
3552 (Lisp_Object attribute
, Lisp_Object value
)
3554 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3556 else if (EQ (attribute
, QCheight
))
3557 return INTEGERP (value
) ? Qnil
: Qt
;
3562 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3564 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3565 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3566 the result will be absolute, otherwise it will be relative. */)
3567 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3569 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3571 else if (EQ (attribute
, QCheight
))
3572 return merge_face_heights (value1
, value2
, value1
);
3578 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3579 Sinternal_get_lisp_face_attribute
,
3581 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3582 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3583 face attribute name, signal an error.
3584 If the optional argument FRAME is given, report on face SYMBOL in that
3585 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3586 frames). If FRAME is omitted or nil, use the selected frame. */)
3587 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3589 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3590 Lisp_Object lface
= lface_from_face_name (f
, symbol
, true), value
= Qnil
;
3592 CHECK_SYMBOL (symbol
);
3593 CHECK_SYMBOL (keyword
);
3595 if (EQ (keyword
, QCfamily
))
3596 value
= LFACE_FAMILY (lface
);
3597 else if (EQ (keyword
, QCfoundry
))
3598 value
= LFACE_FOUNDRY (lface
);
3599 else if (EQ (keyword
, QCheight
))
3600 value
= LFACE_HEIGHT (lface
);
3601 else if (EQ (keyword
, QCweight
))
3602 value
= LFACE_WEIGHT (lface
);
3603 else if (EQ (keyword
, QCslant
))
3604 value
= LFACE_SLANT (lface
);
3605 else if (EQ (keyword
, QCunderline
))
3606 value
= LFACE_UNDERLINE (lface
);
3607 else if (EQ (keyword
, QCoverline
))
3608 value
= LFACE_OVERLINE (lface
);
3609 else if (EQ (keyword
, QCstrike_through
))
3610 value
= LFACE_STRIKE_THROUGH (lface
);
3611 else if (EQ (keyword
, QCbox
))
3612 value
= LFACE_BOX (lface
);
3613 else if (EQ (keyword
, QCinverse_video
)
3614 || EQ (keyword
, QCreverse_video
))
3615 value
= LFACE_INVERSE (lface
);
3616 else if (EQ (keyword
, QCforeground
))
3617 value
= LFACE_FOREGROUND (lface
);
3618 else if (EQ (keyword
, QCdistant_foreground
))
3619 value
= LFACE_DISTANT_FOREGROUND (lface
);
3620 else if (EQ (keyword
, QCbackground
))
3621 value
= LFACE_BACKGROUND (lface
);
3622 else if (EQ (keyword
, QCstipple
))
3623 value
= LFACE_STIPPLE (lface
);
3624 else if (EQ (keyword
, QCwidth
))
3625 value
= LFACE_SWIDTH (lface
);
3626 else if (EQ (keyword
, QCinherit
))
3627 value
= LFACE_INHERIT (lface
);
3628 else if (EQ (keyword
, QCfont
))
3629 value
= LFACE_FONT (lface
);
3630 else if (EQ (keyword
, QCfontset
))
3631 value
= LFACE_FONTSET (lface
);
3633 signal_error ("Invalid face attribute name", keyword
);
3635 if (IGNORE_DEFFACE_P (value
))
3636 return Qunspecified
;
3642 DEFUN ("internal-lisp-face-attribute-values",
3643 Finternal_lisp_face_attribute_values
,
3644 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3645 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3646 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3649 Lisp_Object result
= Qnil
;
3651 CHECK_SYMBOL (attr
);
3653 if (EQ (attr
, QCunderline
) || EQ (attr
, QCoverline
)
3654 || EQ (attr
, QCstrike_through
)
3655 || EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3656 result
= list2 (Qt
, Qnil
);
3662 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3663 Sinternal_merge_in_global_face
, 2, 2, 0,
3664 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3665 Default face attributes override any local face attributes. */)
3666 (Lisp_Object face
, Lisp_Object frame
)
3669 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3670 struct frame
*f
= XFRAME (frame
);
3672 CHECK_LIVE_FRAME (frame
);
3673 global_lface
= lface_from_face_name (NULL
, face
, true);
3674 local_lface
= lface_from_face_name (f
, face
, false);
3675 if (NILP (local_lface
))
3676 local_lface
= Finternal_make_lisp_face (face
, frame
);
3678 /* Make every specified global attribute override the local one.
3679 BEWARE!! This is only used from `face-set-after-frame-default' where
3680 the local frame is defined from default specs in `face-defface-spec'
3681 and those should be overridden by global settings. Hence the strange
3682 "global before local" priority. */
3683 lvec
= XVECTOR (local_lface
)->contents
;
3684 gvec
= XVECTOR (global_lface
)->contents
;
3685 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3686 if (IGNORE_DEFFACE_P (gvec
[i
]))
3687 ASET (local_lface
, i
, Qunspecified
);
3688 else if (! UNSPECIFIEDP (gvec
[i
]))
3689 ASET (local_lface
, i
, AREF (global_lface
, i
));
3691 /* If the default face was changed, update the face cache and the
3692 `font' frame parameter. */
3693 if (EQ (face
, Qdefault
))
3695 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3696 struct face
*newface
, *oldface
= FACE_OPT_FROM_ID (f
, DEFAULT_FACE_ID
);
3697 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3699 /* This can be NULL (e.g., in batch mode). */
3702 /* Ensure that the face vector is fully specified by merging
3703 the previously-cached vector. */
3704 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3705 merge_face_vectors (f
, lvec
, attrs
, 0);
3706 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3707 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3709 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3710 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3711 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3712 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3713 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3714 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3715 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3718 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3719 AUTO_FRAME_ARG (arg
, Qfont
, name
);
3720 Fmodify_frame_parameters (frame
, arg
);
3723 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3725 AUTO_FRAME_ARG (arg
, Qforeground_color
,
3726 gvec
[LFACE_FOREGROUND_INDEX
]);
3727 Fmodify_frame_parameters (frame
, arg
);
3730 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3732 AUTO_FRAME_ARG (arg
, Qbackground_color
,
3733 gvec
[LFACE_BACKGROUND_INDEX
]);
3734 Fmodify_frame_parameters (frame
, arg
);
3743 /* The following function is implemented for compatibility with 20.2.
3744 The function is used in x-resolve-fonts when it is asked to
3745 return fonts with the same size as the font of a face. This is
3746 done in fontset.el. */
3748 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3749 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3750 The font name is, by default, for ASCII characters.
3751 If the optional argument FRAME is given, report on face FACE in that frame.
3752 If FRAME is t, report on the defaults for face FACE (for new frames).
3753 The font default for a face is either nil, or a list
3754 of the form (bold), (italic) or (bold italic).
3755 If FRAME is omitted or nil, use the selected frame. And, in this case,
3756 if the optional third argument CHARACTER is given,
3757 return the font name used for CHARACTER. */)
3758 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3762 Lisp_Object result
= Qnil
;
3763 Lisp_Object lface
= lface_from_face_name (NULL
, face
, true);
3765 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3766 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3767 result
= Fcons (Qbold
, result
);
3769 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3770 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3771 result
= Fcons (Qitalic
, result
);
3777 struct frame
*f
= decode_live_frame (frame
);
3778 int face_id
= lookup_named_face (f
, face
, true);
3779 struct face
*fface
= FACE_OPT_FROM_ID (f
, face_id
);
3783 #ifdef HAVE_WINDOW_SYSTEM
3784 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3786 CHECK_CHARACTER (character
);
3787 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3788 fface
= FACE_FROM_ID (f
, face_id
);
3791 ? fface
->font
->props
[FONT_NAME_INDEX
]
3793 #else /* !HAVE_WINDOW_SYSTEM */
3794 return build_string (FRAME_MSDOS_P (f
)
3796 : FRAME_W32_P (f
) ? "w32term"
3803 /* Compare face-attribute values v1 and v2 for equality. Value is true if
3804 all attributes are `equal'. Tries to be fast because this function
3805 is called quite often. */
3808 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3810 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3811 and the other is specified. */
3812 if (XTYPE (v1
) != XTYPE (v2
))
3821 if (SBYTES (v1
) != SBYTES (v2
))
3824 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3831 return !NILP (Fequal (v1
, v2
));
3836 /* Compare face vectors V1 and V2 for equality. Value is true if
3837 all attributes are `equal'. Tries to be fast because this function
3838 is called quite often. */
3841 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3844 bool equal_p
= true;
3846 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3847 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3853 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3854 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3855 doc
: /* True if FACE1 and FACE2 are equal.
3856 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3857 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3858 If FRAME is omitted or nil, use the selected frame. */)
3859 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3863 Lisp_Object lface1
, lface2
;
3865 /* Don't use decode_window_system_frame here because this function
3866 is called before X frames exist. At that time, if FRAME is nil,
3867 selected_frame will be used which is the frame dumped with
3868 Emacs. That frame is not an X frame. */
3869 f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3871 lface1
= lface_from_face_name (f
, face1
, true);
3872 lface2
= lface_from_face_name (f
, face2
, true);
3873 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3874 XVECTOR (lface2
)->contents
);
3875 return equal_p
? Qt
: Qnil
;
3879 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3880 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3881 doc
: /* True if FACE has no attribute specified.
3882 If the optional argument FRAME is given, report on face FACE in that frame.
3883 If FRAME is t, report on the defaults for face FACE (for new frames).
3884 If FRAME is omitted or nil, use the selected frame. */)
3885 (Lisp_Object face
, Lisp_Object frame
)
3887 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3888 Lisp_Object lface
= lface_from_face_name (f
, face
, true);
3891 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3892 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3895 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3899 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
3901 doc
: /* Return an alist of frame-local faces defined on FRAME.
3902 For internal use only. */)
3905 return decode_live_frame (frame
)->face_alist
;
3909 /* Return a hash code for Lisp string STRING with case ignored. Used
3910 below in computing a hash value for a Lisp face. */
3913 hash_string_case_insensitive (Lisp_Object string
)
3915 const unsigned char *s
;
3917 eassert (STRINGP (string
));
3918 for (s
= SDATA (string
); *s
; ++s
)
3919 hash
= (hash
<< 1) ^ c_tolower (*s
);
3924 /* Return a hash code for face attribute vector V. */
3927 lface_hash (Lisp_Object
*v
)
3929 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
3930 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
3931 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
3932 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
3933 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
3934 ^ XHASH (v
[LFACE_SLANT_INDEX
])
3935 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
3936 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
3939 #ifdef HAVE_WINDOW_SYSTEM
3941 /* Return true if LFACE1 and LFACE2 specify the same font (without
3942 considering charsets/registries). They do if they specify the same
3943 family, point size, weight, width, slant, and font. Both
3944 LFACE1 and LFACE2 must be fully-specified. */
3947 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
3949 eassert (lface_fully_specified_p (lface1
)
3950 && lface_fully_specified_p (lface2
));
3951 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
3952 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
3953 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
3954 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
3955 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
3956 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
3957 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
3958 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
3959 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
3960 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
3961 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
3962 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
3963 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
3964 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
3968 #endif /* HAVE_WINDOW_SYSTEM */
3970 /***********************************************************************
3972 ***********************************************************************/
3974 /* Allocate and return a new realized face for Lisp face attribute
3977 static struct face
*
3978 make_realized_face (Lisp_Object
*attr
)
3980 enum { off
= offsetof (struct face
, id
) };
3981 struct face
*face
= xmalloc (sizeof *face
);
3983 memcpy (face
->lface
, attr
, sizeof face
->lface
);
3984 memset (&face
->id
, 0, sizeof *face
- off
);
3985 face
->ascii_face
= face
;
3991 /* Free realized face FACE, including its X resources. FACE may
3995 free_realized_face (struct frame
*f
, struct face
*face
)
3999 #ifdef HAVE_WINDOW_SYSTEM
4000 if (FRAME_WINDOW_P (f
))
4002 /* Free fontset of FACE if it is ASCII face. */
4003 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4004 free_face_fontset (f
, face
);
4009 font_done_for_face (f
, face
);
4010 x_free_gc (f
, face
->gc
);
4014 #ifdef HAVE_X_WINDOWS
4015 free_face_colors (f
, face
);
4016 #endif /* HAVE_X_WINDOWS */
4017 x_destroy_bitmap (f
, face
->stipple
);
4019 #endif /* HAVE_WINDOW_SYSTEM */
4025 #ifdef HAVE_WINDOW_SYSTEM
4027 /* Prepare face FACE for subsequent display on frame F. This must be called
4028 before using X resources of FACE to allocate GCs if they haven't been
4029 allocated yet or have been freed by clearing the face cache. */
4032 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4034 eassert (FRAME_WINDOW_P (f
));
4039 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4041 xgcv
.foreground
= face
->foreground
;
4042 xgcv
.background
= face
->background
;
4043 #ifdef HAVE_X_WINDOWS
4044 xgcv
.graphics_exposures
= False
;
4048 #ifdef HAVE_X_WINDOWS
4051 xgcv
.fill_style
= FillOpaqueStippled
;
4052 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4053 mask
|= GCFillStyle
| GCStipple
;
4056 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4058 font_prepare_for_face (f
, face
);
4063 #endif /* HAVE_WINDOW_SYSTEM */
4065 /* Returns the `distance' between the colors X and Y. */
4068 color_distance (XColor
*x
, XColor
*y
)
4070 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4071 Quoting from that paper:
4073 This formula has results that are very close to L*u*v* (with the
4074 modified lightness curve) and, more importantly, it is a more even
4075 algorithm: it does not have a range of colors where it suddenly
4076 gives far from optimal results.
4078 See <http://www.compuphase.com/cmetric.htm> for more info. */
4080 long r
= (x
->red
- y
->red
) >> 8;
4081 long g
= (x
->green
- y
->green
) >> 8;
4082 long b
= (x
->blue
- y
->blue
) >> 8;
4083 long r_mean
= (x
->red
+ y
->red
) >> 9;
4086 (((512 + r_mean
) * r
* r
) >> 8)
4088 + (((767 - r_mean
) * b
* b
) >> 8);
4092 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4093 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4094 COLOR1 and COLOR2 may be either strings containing the color name,
4095 or lists of the form (RED GREEN BLUE).
4096 If FRAME is unspecified or nil, the current frame is used. */)
4097 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4099 struct frame
*f
= decode_live_frame (frame
);
4100 XColor cdef1
, cdef2
;
4102 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4103 && !(STRINGP (color1
)
4104 && defined_color (f
, SSDATA (color1
), &cdef1
, false)))
4105 signal_error ("Invalid color", color1
);
4106 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4107 && !(STRINGP (color2
)
4108 && defined_color (f
, SSDATA (color2
), &cdef2
, false)))
4109 signal_error ("Invalid color", color2
);
4111 return make_number (color_distance (&cdef1
, &cdef2
));
4115 /***********************************************************************
4117 ***********************************************************************/
4119 /* Return a new face cache for frame F. */
4121 static struct face_cache
*
4122 make_face_cache (struct frame
*f
)
4124 struct face_cache
*c
= xmalloc (sizeof *c
);
4126 c
->buckets
= xzalloc (FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
);
4129 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4131 c
->menu_face_changed_p
= menu_face_changed_default
;
4135 #ifdef HAVE_WINDOW_SYSTEM
4137 /* Clear out all graphics contexts for all realized faces, except for
4138 the basic faces. This should be done from time to time just to avoid
4139 keeping too many graphics contexts that are no longer needed. */
4142 clear_face_gcs (struct face_cache
*c
)
4144 if (c
&& FRAME_WINDOW_P (c
->f
))
4147 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4149 struct face
*face
= c
->faces_by_id
[i
];
4150 if (face
&& face
->gc
)
4154 font_done_for_face (c
->f
, face
);
4155 x_free_gc (c
->f
, face
->gc
);
4163 #endif /* HAVE_WINDOW_SYSTEM */
4165 /* Free all realized faces in face cache C, including basic faces.
4166 C may be null. If faces are freed, make sure the frame's current
4167 matrix is marked invalid, so that a display caused by an expose
4168 event doesn't try to use faces we destroyed. */
4171 free_realized_faces (struct face_cache
*c
)
4176 struct frame
*f
= c
->f
;
4178 /* We must block input here because we can't process X events
4179 safely while only some faces are freed, or when the frame's
4180 current matrix still references freed faces. */
4183 for (i
= 0; i
< c
->used
; ++i
)
4185 free_realized_face (f
, c
->faces_by_id
[i
]);
4186 c
->faces_by_id
[i
] = NULL
;
4189 /* Forget the escape-glyph and glyphless-char faces. */
4190 forget_escape_and_glyphless_faces ();
4192 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4193 memset (c
->buckets
, 0, size
);
4195 /* Must do a thorough redisplay the next time. Mark current
4196 matrices as invalid because they will reference faces freed
4197 above. This function is also called when a frame is
4198 destroyed. In this case, the root window of F is nil. */
4199 if (WINDOWP (f
->root_window
))
4201 clear_current_matrices (f
);
4210 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4211 This is done after attributes of a named face have been changed,
4212 because we can't tell which realized faces depend on that face. */
4215 free_all_realized_faces (Lisp_Object frame
)
4220 FOR_EACH_FRAME (rest
, frame
)
4221 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4222 windows_or_buffers_changed
= 58;
4225 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4229 /* Free face cache C and faces in it, including their X resources. */
4232 free_face_cache (struct face_cache
*c
)
4236 free_realized_faces (c
);
4238 xfree (c
->faces_by_id
);
4244 /* Cache realized face FACE in face cache C. HASH is the hash value
4245 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4246 FACE), insert the new face to the beginning of the collision list
4247 of the face hash table of C. Otherwise, add the new face to the
4248 end of the collision list. This way, lookup_face can quickly find
4249 that a requested face is not cached. */
4252 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4254 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4258 if (face
->ascii_face
!= face
)
4260 struct face
*last
= c
->buckets
[i
];
4271 c
->buckets
[i
] = face
;
4272 face
->prev
= face
->next
= NULL
;
4278 face
->next
= c
->buckets
[i
];
4280 face
->next
->prev
= face
;
4281 c
->buckets
[i
] = face
;
4284 /* Find a free slot in C->faces_by_id and use the index of the free
4285 slot as FACE->id. */
4286 for (i
= 0; i
< c
->used
; ++i
)
4287 if (c
->faces_by_id
[i
] == NULL
)
4292 /* Check that FACE got a unique id. */
4297 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4298 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4304 #endif /* GLYPH_DEBUG */
4306 /* Maybe enlarge C->faces_by_id. */
4309 if (c
->used
== c
->size
)
4310 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4311 sizeof *c
->faces_by_id
);
4315 c
->faces_by_id
[i
] = face
;
4319 /* Remove face FACE from cache C. */
4322 uncache_face (struct face_cache
*c
, struct face
*face
)
4324 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4327 face
->prev
->next
= face
->next
;
4329 c
->buckets
[i
] = face
->next
;
4332 face
->next
->prev
= face
->prev
;
4334 c
->faces_by_id
[face
->id
] = NULL
;
4335 if (face
->id
== c
->used
)
4340 /* Look up a realized face with face attributes ATTR in the face cache
4341 of frame F. The face will be used to display ASCII characters.
4342 Value is the ID of the face found. If no suitable face is found,
4343 realize a new one. */
4346 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4348 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4353 eassert (cache
!= NULL
);
4354 check_lface_attrs (attr
);
4356 /* Look up ATTR in the face cache. */
4357 hash
= lface_hash (attr
);
4358 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4360 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4362 if (face
->ascii_face
!= face
)
4364 /* There's no more ASCII face. */
4368 if (face
->hash
== hash
4369 && lface_equal_p (face
->lface
, attr
))
4373 /* If not found, realize a new face. */
4375 face
= realize_face (cache
, attr
, -1);
4378 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4379 #endif /* GLYPH_DEBUG */
4384 #ifdef HAVE_WINDOW_SYSTEM
4385 /* Look up a realized face that has the same attributes as BASE_FACE
4386 except for the font in the face cache of frame F. If FONT-OBJECT
4387 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4388 the face has no font. Value is the ID of the face found. If no
4389 suitable face is found, realize a new one. */
4392 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4394 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4399 eassert (cache
!= NULL
);
4400 base_face
= base_face
->ascii_face
;
4401 hash
= lface_hash (base_face
->lface
);
4402 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4404 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4406 if (face
->ascii_face
== face
)
4408 if (face
->ascii_face
== base_face
4409 && face
->font
== (NILP (font_object
) ? NULL
4410 : XFONT_OBJECT (font_object
))
4411 && lface_equal_p (face
->lface
, base_face
->lface
))
4415 /* If not found, realize a new face. */
4416 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4419 #endif /* HAVE_WINDOW_SYSTEM */
4421 /* Return the face id of the realized face for named face SYMBOL on
4422 frame F suitable for displaying ASCII characters. Value is -1 if
4423 the face couldn't be determined, which might happen if the default
4424 face isn't realized and cannot be realized. */
4427 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, bool signal_p
)
4429 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4430 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4431 struct face
*default_face
= FACE_OPT_FROM_ID (f
, DEFAULT_FACE_ID
);
4433 if (default_face
== NULL
)
4435 if (!realize_basic_faces (f
))
4437 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4440 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4443 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4444 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4446 return lookup_face (f
, attrs
);
4450 /* Return the display face-id of the basic face whose canonical face-id
4451 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4452 basic face has bee remapped via Vface_remapping_alist. This function is
4453 conservative: if something goes wrong, it will simply return FACE_ID
4454 rather than signal an error. */
4457 lookup_basic_face (struct frame
*f
, int face_id
)
4459 Lisp_Object name
, mapping
;
4460 int remapped_face_id
;
4462 if (NILP (Vface_remapping_alist
))
4463 return face_id
; /* Nothing to do. */
4467 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4468 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4469 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4470 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4471 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4472 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4473 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4474 case BORDER_FACE_ID
: name
= Qborder
; break;
4475 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4476 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4477 case MENU_FACE_ID
: name
= Qmenu
; break;
4480 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4483 /* Do a quick scan through Vface_remapping_alist, and return immediately
4484 if there is no remapping for face NAME. This is just an optimization
4485 for the very common no-remapping case. */
4486 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4488 return face_id
; /* Give up. */
4490 /* If there is a remapping entry, lookup the face using NAME, which will
4491 handle the remapping too. */
4492 remapped_face_id
= lookup_named_face (f
, name
, false);
4493 if (remapped_face_id
< 0)
4494 return face_id
; /* Give up. */
4496 return remapped_face_id
;
4500 /* Return a face for charset ASCII that is like the face with id
4501 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4502 STEPS < 0 means larger. Value is the id of the face. */
4505 smaller_face (struct frame
*f
, int face_id
, int steps
)
4507 #ifdef HAVE_WINDOW_SYSTEM
4509 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4510 int pt
, last_pt
, last_height
;
4513 struct face
*new_face
;
4515 /* If not called for an X frame, just return the original face. */
4516 if (FRAME_TERMCAP_P (f
))
4519 /* Try in increments of 1/2 pt. */
4520 delta
= steps
< 0 ? 5 : -5;
4521 steps
= eabs (steps
);
4523 face
= FACE_FROM_ID (f
, face_id
);
4524 memcpy (attrs
, face
->lface
, sizeof attrs
);
4525 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4526 new_face_id
= face_id
;
4527 last_height
= FONT_HEIGHT (face
->font
);
4531 /* Give up if we cannot find a font within 10pt. */
4532 && eabs (last_pt
- pt
) < 100)
4534 /* Look up a face for a slightly smaller/larger font. */
4536 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4537 new_face_id
= lookup_face (f
, attrs
);
4538 new_face
= FACE_FROM_ID (f
, new_face_id
);
4540 /* If height changes, count that as one step. */
4541 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4542 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4545 last_height
= FONT_HEIGHT (new_face
->font
);
4552 #else /* not HAVE_WINDOW_SYSTEM */
4556 #endif /* not HAVE_WINDOW_SYSTEM */
4560 /* Return a face for charset ASCII that is like the face with id
4561 FACE_ID on frame F, but has height HEIGHT. */
4564 face_with_height (struct frame
*f
, int face_id
, int height
)
4566 #ifdef HAVE_WINDOW_SYSTEM
4568 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4570 if (FRAME_TERMCAP_P (f
)
4574 face
= FACE_FROM_ID (f
, face_id
);
4575 memcpy (attrs
, face
->lface
, sizeof attrs
);
4576 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4577 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4578 face_id
= lookup_face (f
, attrs
);
4579 #endif /* HAVE_WINDOW_SYSTEM */
4585 /* Return the face id of the realized face for named face SYMBOL on
4586 frame F suitable for displaying ASCII characters, and use
4587 attributes of the face FACE_ID for attributes that aren't
4588 completely specified by SYMBOL. This is like lookup_named_face,
4589 except that the default attributes come from FACE_ID, not from the
4590 default face. FACE_ID is assumed to be already realized. */
4593 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4596 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4597 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4598 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4600 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
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_OPT_FROM_ID (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_OPT_FROM_ID (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
];
5202 /* If the `default' face is not yet known, create it. */
5203 lface
= lface_from_face_name (f
, Qdefault
, false);
5207 XSETFRAME (frame
, f
);
5208 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5211 #ifdef HAVE_WINDOW_SYSTEM
5212 if (FRAME_WINDOW_P (f
))
5214 Lisp_Object font_object
;
5216 XSETFONT (font_object
, FRAME_FONT (f
));
5217 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5218 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5219 f
->default_face_done_p
= true;
5221 #endif /* HAVE_WINDOW_SYSTEM */
5223 if (!FRAME_WINDOW_P (f
))
5225 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5226 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5227 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5228 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5229 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5230 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5231 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5232 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5233 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5234 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5237 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5238 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5240 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5241 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5243 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5244 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5246 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5247 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5249 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5250 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5252 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5254 /* This function is called so early that colors are not yet
5255 set in the frame parameter list. */
5256 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5258 if (CONSP (color
) && STRINGP (XCDR (color
)))
5259 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5260 else if (FRAME_WINDOW_P (f
))
5262 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5263 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5268 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5270 /* This function is called so early that colors are not yet
5271 set in the frame parameter list. */
5272 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5273 if (CONSP (color
) && STRINGP (XCDR (color
)))
5274 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5275 else if (FRAME_WINDOW_P (f
))
5277 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5278 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5283 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5284 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5286 /* Realize the face; it must be fully-specified now. */
5287 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5288 check_lface (lface
);
5289 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5290 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5292 #ifdef HAVE_WINDOW_SYSTEM
5293 #ifdef HAVE_X_WINDOWS
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
);
5307 #endif /* HAVE_X_WINDOWS */
5308 #endif /* HAVE_WINDOW_SYSTEM */
5313 /* Realize basic faces other than the default face in face cache C.
5314 SYMBOL is the face name, ID is the face id the realized face must
5315 have. The default face must have been realized already. */
5318 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5320 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5321 Lisp_Object lface
= lface_from_face_name (f
, symbol
, false);
5322 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5323 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5325 /* The default face must exist and be fully specified. */
5326 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, true);
5327 check_lface_attrs (attrs
);
5328 eassert (lface_fully_specified_p (attrs
));
5330 /* If SYMBOL isn't know as a face, create it. */
5334 XSETFRAME (frame
, f
);
5335 lface
= Finternal_make_lisp_face (symbol
, frame
);
5338 /* Merge SYMBOL's face with the default face. */
5339 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, true);
5340 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5342 /* Realize the face. */
5343 realize_face (c
, attrs
, id
);
5347 /* Realize the fully-specified face with attributes ATTRS in face
5348 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5349 non-negative, it is an ID of face to remove before caching the new
5350 face. Value is a pointer to the newly created realized face. */
5352 static struct face
*
5353 realize_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
5358 /* LFACE must be fully specified. */
5359 eassert (cache
!= NULL
);
5360 check_lface_attrs (attrs
);
5362 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5364 /* Remove the former face. */
5365 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5366 uncache_face (cache
, former_face
);
5367 free_realized_face (cache
->f
, former_face
);
5368 SET_FRAME_GARBAGED (cache
->f
);
5371 if (FRAME_WINDOW_P (cache
->f
))
5372 face
= realize_x_face (cache
, attrs
);
5373 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5374 face
= realize_tty_face (cache
, attrs
);
5375 else if (FRAME_INITIAL_P (cache
->f
))
5377 /* Create a dummy face. */
5378 face
= make_realized_face (attrs
);
5383 /* Insert the new face. */
5384 cache_face (cache
, face
, lface_hash (attrs
));
5389 #ifdef HAVE_WINDOW_SYSTEM
5390 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5391 same attributes as BASE_FACE except for the font on frame F.
5392 FONT-OBJECT may be nil, in which case, realized a face of
5395 static struct face
*
5396 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5397 struct face
*base_face
)
5399 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5402 face
= xmalloc (sizeof *face
);
5406 = (! NILP (font_object
)
5407 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5408 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5410 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5411 face
->colors_copied_bitwise_p
= true;
5412 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5415 cache_face (cache
, face
, face
->hash
);
5419 #endif /* HAVE_WINDOW_SYSTEM */
5422 /* Realize the fully-specified face with attributes ATTRS in face
5423 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5424 the new face doesn't share font with the default face, a fontname
5425 is allocated from the heap and set in `font_name' of the new face,
5426 but it is not yet loaded here. Value is a pointer to the newly
5427 created realized face. */
5429 static struct face
*
5430 realize_x_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5432 struct face
*face
= NULL
;
5433 #ifdef HAVE_WINDOW_SYSTEM
5434 struct face
*default_face
;
5436 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5438 eassert (FRAME_WINDOW_P (cache
->f
));
5440 /* Allocate a new realized face. */
5441 face
= make_realized_face (attrs
);
5442 face
->ascii_face
= face
;
5446 /* Determine the font to use. Most of the time, the font will be
5447 the same as the font of the default face, so try that first. */
5448 default_face
= FACE_OPT_FROM_ID (f
, DEFAULT_FACE_ID
);
5450 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5452 face
->font
= default_face
->font
;
5454 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5458 /* If the face attribute ATTRS specifies a fontset, use it as
5459 the base of a new realized fontset. Otherwise, use the same
5460 base fontset as of the default face. The base determines
5461 registry and encoding of a font. It may also determine
5462 foundry and family. The other fields of font name pattern
5463 are constructed from ATTRS. */
5464 int fontset
= face_fontset (attrs
);
5466 /* If we are realizing the default face, ATTRS should specify a
5467 fontset. In other words, if FONTSET is -1, we are not
5468 realizing the default face, thus the default face should have
5469 already been realized. */
5473 fontset
= default_face
->fontset
;
5477 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5478 attrs
[LFACE_FONT_INDEX
]
5479 = font_load_for_lface (f
, attrs
, Ffont_spec (0, NULL
));
5480 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5482 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5483 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5493 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5494 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5495 face
->overstrike
= true;
5497 /* Load colors, and set remaining attributes. */
5499 load_face_colors (f
, face
, attrs
);
5502 box
= attrs
[LFACE_BOX_INDEX
];
5505 /* A simple box of line width 1 drawn in color given by
5507 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5509 face
->box
= FACE_SIMPLE_BOX
;
5510 face
->box_line_width
= 1;
5512 else if (INTEGERP (box
))
5514 /* Simple box of specified line width in foreground color of the
5516 eassert (XINT (box
) != 0);
5517 face
->box
= FACE_SIMPLE_BOX
;
5518 face
->box_line_width
= XINT (box
);
5519 face
->box_color
= face
->foreground
;
5520 face
->box_color_defaulted_p
= true;
5522 else if (CONSP (box
))
5524 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5525 being one of `raised' or `sunken'. */
5526 face
->box
= FACE_SIMPLE_BOX
;
5527 face
->box_color
= face
->foreground
;
5528 face
->box_color_defaulted_p
= true;
5529 face
->box_line_width
= 1;
5533 Lisp_Object keyword
, value
;
5535 keyword
= XCAR (box
);
5543 if (EQ (keyword
, QCline_width
))
5545 if (INTEGERP (value
) && XINT (value
) != 0)
5546 face
->box_line_width
= XINT (value
);
5548 else if (EQ (keyword
, QCcolor
))
5550 if (STRINGP (value
))
5552 face
->box_color
= load_color (f
, face
, value
,
5554 face
->use_box_color_for_shadows_p
= true;
5557 else if (EQ (keyword
, QCstyle
))
5559 if (EQ (value
, Qreleased_button
))
5560 face
->box
= FACE_RAISED_BOX
;
5561 else if (EQ (value
, Qpressed_button
))
5562 face
->box
= FACE_SUNKEN_BOX
;
5567 /* Text underline, overline, strike-through. */
5569 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5570 if (EQ (underline
, Qt
))
5572 /* Use default color (same as foreground color). */
5573 face
->underline_p
= true;
5574 face
->underline_type
= FACE_UNDER_LINE
;
5575 face
->underline_defaulted_p
= true;
5576 face
->underline_color
= 0;
5578 else if (STRINGP (underline
))
5580 /* Use specified color. */
5581 face
->underline_p
= true;
5582 face
->underline_type
= FACE_UNDER_LINE
;
5583 face
->underline_defaulted_p
= false;
5584 face
->underline_color
5585 = load_color (f
, face
, underline
,
5586 LFACE_UNDERLINE_INDEX
);
5588 else if (NILP (underline
))
5590 face
->underline_p
= false;
5591 face
->underline_defaulted_p
= false;
5592 face
->underline_color
= 0;
5594 else if (CONSP (underline
))
5596 /* `(:color COLOR :style STYLE)'.
5597 STYLE being one of `line' or `wave'. */
5598 face
->underline_p
= true;
5599 face
->underline_color
= 0;
5600 face
->underline_defaulted_p
= true;
5601 face
->underline_type
= FACE_UNDER_LINE
;
5603 /* FIXME? This is also not robust about checking the precise form.
5604 See comments in Finternal_set_lisp_face_attribute. */
5605 while (CONSP (underline
))
5607 Lisp_Object keyword
, value
;
5609 keyword
= XCAR (underline
);
5610 underline
= XCDR (underline
);
5612 if (!CONSP (underline
))
5614 value
= XCAR (underline
);
5615 underline
= XCDR (underline
);
5617 if (EQ (keyword
, QCcolor
))
5619 if (EQ (value
, Qforeground_color
))
5621 face
->underline_defaulted_p
= true;
5622 face
->underline_color
= 0;
5624 else if (STRINGP (value
))
5626 face
->underline_defaulted_p
= false;
5627 face
->underline_color
= load_color (f
, face
, value
,
5628 LFACE_UNDERLINE_INDEX
);
5631 else if (EQ (keyword
, QCstyle
))
5633 if (EQ (value
, Qline
))
5634 face
->underline_type
= FACE_UNDER_LINE
;
5635 else if (EQ (value
, Qwave
))
5636 face
->underline_type
= FACE_UNDER_WAVE
;
5641 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5642 if (STRINGP (overline
))
5644 face
->overline_color
5645 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5646 LFACE_OVERLINE_INDEX
);
5647 face
->overline_p
= true;
5649 else if (EQ (overline
, Qt
))
5651 face
->overline_color
= face
->foreground
;
5652 face
->overline_color_defaulted_p
= true;
5653 face
->overline_p
= true;
5656 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5657 if (STRINGP (strike_through
))
5659 face
->strike_through_color
5660 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5661 LFACE_STRIKE_THROUGH_INDEX
);
5662 face
->strike_through_p
= true;
5664 else if (EQ (strike_through
, Qt
))
5666 face
->strike_through_color
= face
->foreground
;
5667 face
->strike_through_color_defaulted_p
= true;
5668 face
->strike_through_p
= true;
5671 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5672 if (!NILP (stipple
))
5673 face
->stipple
= load_pixmap (f
, stipple
);
5674 #endif /* HAVE_WINDOW_SYSTEM */
5680 /* Map a specified color of face FACE on frame F to a tty color index.
5681 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5682 specifies which color to map. Set *DEFAULTED to true if mapping to the
5683 default foreground/background colors. */
5686 map_tty_color (struct frame
*f
, struct face
*face
,
5687 enum lface_attribute_index idx
, bool *defaulted
)
5689 Lisp_Object frame
, color
, def
;
5690 bool foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5691 unsigned long default_pixel
=
5692 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5693 unsigned long pixel
= default_pixel
;
5695 unsigned long default_other_pixel
=
5696 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5699 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5701 XSETFRAME (frame
, f
);
5702 color
= face
->lface
[idx
];
5706 && CONSP (Vtty_defined_color_alist
)
5707 && (def
= assoc_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5710 /* Associations in tty-defined-color-alist are of the form
5711 (NAME INDEX R G B). We need the INDEX part. */
5712 pixel
= XINT (XCAR (XCDR (def
)));
5715 if (pixel
== default_pixel
&& STRINGP (color
))
5717 pixel
= load_color (f
, face
, color
, idx
);
5720 /* If the foreground of the default face is the default color,
5721 use the foreground color defined by the frame. */
5722 if (FRAME_MSDOS_P (f
))
5724 if (pixel
== default_pixel
5725 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5728 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5730 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5731 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5734 else if (pixel
== default_other_pixel
)
5737 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5739 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5740 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5748 face
->foreground
= pixel
;
5750 face
->background
= pixel
;
5754 /* Realize the fully-specified face with attributes ATTRS in face
5755 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5756 Value is a pointer to the newly created realized face. */
5758 static struct face
*
5759 realize_tty_face (struct face_cache
*cache
,
5760 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5764 bool face_colors_defaulted
= false;
5765 struct frame
*f
= cache
->f
;
5767 /* Frame must be a termcap frame. */
5768 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5770 /* Allocate a new realized face. */
5771 face
= make_realized_face (attrs
);
5773 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5776 /* Map face attributes to TTY appearances. */
5777 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5778 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5780 face
->tty_bold_p
= true;
5782 face
->tty_italic_p
= true;
5783 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5784 face
->tty_underline_p
= true;
5785 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5786 face
->tty_reverse_p
= true;
5788 /* Map color names to color indices. */
5789 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5790 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5792 /* Swap colors if face is inverse-video. If the colors are taken
5793 from the frame colors, they are already inverted, since the
5794 frame-creation function calls x-handle-reverse-video. */
5795 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5797 unsigned long tem
= face
->foreground
;
5798 face
->foreground
= face
->background
;
5799 face
->background
= tem
;
5802 if (tty_suppress_bold_inverse_default_colors_p
5804 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5805 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5806 face
->tty_bold_p
= false;
5812 DEFUN ("tty-suppress-bold-inverse-default-colors",
5813 Ftty_suppress_bold_inverse_default_colors
,
5814 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5815 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5816 SUPPRESS non-nil means suppress it.
5817 This affects bold faces on TTYs whose foreground is the default background
5818 color of the display and whose background is the default foreground color.
5819 For such faces, the bold face attribute is ignored if this variable
5821 (Lisp_Object suppress
)
5823 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5830 /***********************************************************************
5832 ***********************************************************************/
5834 /* Return the ID of the face to use to display character CH with face
5835 property PROP on frame F in current_buffer. */
5838 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5842 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5847 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5848 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5852 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5853 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5854 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5855 merge_face_ref (f
, prop
, attrs
, true, 0);
5856 face_id
= lookup_face (f
, attrs
);
5862 /* Return the face ID associated with buffer position POS for
5863 displaying ASCII characters. Return in *ENDPTR the position at
5864 which a different face is needed, as far as text properties and
5865 overlays are concerned. W is a window displaying current_buffer.
5867 REGION_BEG, REGION_END delimit the region, so it can be
5870 LIMIT is a position not to scan beyond. That is to limit the time
5871 this function can take.
5873 If MOUSE, use the character's mouse-face, not its face.
5875 BASE_FACE_ID, if non-negative, specifies a base face id to use
5876 instead of DEFAULT_FACE_ID.
5878 The face returned is suitable for displaying ASCII characters. */
5881 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
5882 ptrdiff_t *endptr
, ptrdiff_t limit
,
5883 bool mouse
, int base_face_id
)
5885 struct frame
*f
= XFRAME (w
->frame
);
5886 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5887 Lisp_Object prop
, position
;
5888 ptrdiff_t i
, noverlays
;
5889 Lisp_Object
*overlay_vec
;
5891 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5892 Lisp_Object limit1
, end
;
5893 struct face
*default_face
;
5895 /* W must display the current buffer. We could write this function
5896 to use the frame and buffer of W, but right now it doesn't. */
5897 /* eassert (XBUFFER (w->contents) == current_buffer); */
5899 XSETFASTINT (position
, pos
);
5903 /* Get the `face' or `mouse_face' text property at POS, and
5904 determine the next position at which the property changes. */
5905 prop
= Fget_text_property (position
, propname
, w
->contents
);
5906 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5907 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
5909 endpos
= XINT (end
);
5911 /* Look at properties from overlays. */
5914 ptrdiff_t next_overlay
;
5916 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, false);
5917 if (next_overlay
< endpos
)
5918 endpos
= next_overlay
;
5926 if (base_face_id
>= 0)
5927 face_id
= base_face_id
;
5928 else if (NILP (Vface_remapping_alist
))
5929 face_id
= DEFAULT_FACE_ID
;
5931 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
5933 default_face
= FACE_FROM_ID (f
, face_id
);
5936 /* Optimize common cases where we can use the default face. */
5941 return default_face
->id
;
5944 /* Begin with attributes from the default face. */
5945 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5947 /* Merge in attributes specified via text properties. */
5949 merge_face_ref (f
, prop
, attrs
, true, 0);
5951 /* Now merge the overlay data. */
5952 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
5953 for (i
= 0; i
< noverlays
; i
++)
5958 prop
= Foverlay_get (overlay_vec
[i
], propname
);
5960 merge_face_ref (f
, prop
, attrs
, true, 0);
5962 oend
= OVERLAY_END (overlay_vec
[i
]);
5963 oendpos
= OVERLAY_POSITION (oend
);
5964 if (oendpos
< endpos
)
5972 /* Look up a realized face with the given face attributes,
5973 or realize a new one for ASCII characters. */
5974 return lookup_face (f
, attrs
);
5977 /* Return the face ID at buffer position POS for displaying ASCII
5978 characters associated with overlay strings for overlay OVERLAY.
5980 Like face_at_buffer_position except for OVERLAY. Currently it
5981 simply disregards the `face' properties of all overlays. */
5984 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
5985 ptrdiff_t *endptr
, ptrdiff_t limit
,
5986 bool mouse
, Lisp_Object overlay
)
5988 struct frame
*f
= XFRAME (w
->frame
);
5989 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5990 Lisp_Object prop
, position
;
5992 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5993 Lisp_Object limit1
, end
;
5994 struct face
*default_face
;
5996 /* W must display the current buffer. We could write this function
5997 to use the frame and buffer of W, but right now it doesn't. */
5998 /* eassert (XBUFFER (w->contents) == current_buffer); */
6000 XSETFASTINT (position
, pos
);
6004 /* Get the `face' or `mouse_face' text property at POS, and
6005 determine the next position at which the property changes. */
6006 prop
= Fget_text_property (position
, propname
, w
->contents
);
6007 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6008 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
6010 endpos
= XINT (end
);
6014 /* Optimize common case where we can use the default face. */
6016 && NILP (Vface_remapping_alist
))
6017 return DEFAULT_FACE_ID
;
6019 /* Begin with attributes from the default face. */
6020 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6021 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6023 /* Merge in attributes specified via text properties. */
6025 merge_face_ref (f
, prop
, attrs
, true, 0);
6029 /* Look up a realized face with the given face attributes,
6030 or realize a new one for ASCII characters. */
6031 return lookup_face (f
, attrs
);
6035 /* Compute the face at character position POS in Lisp string STRING on
6036 window W, for ASCII characters.
6038 If STRING is an overlay string, it comes from position BUFPOS in
6039 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6040 not an overlay string. W must display the current buffer.
6041 REGION_BEG and REGION_END give the start and end positions of the
6042 region; both are -1 if no region is visible.
6044 BASE_FACE_ID is the id of a face to merge with. For strings coming
6045 from overlays or the `display' property it is the face at BUFPOS.
6047 If MOUSE_P, use the character's mouse-face, not its face.
6049 Set *ENDPTR to the next position where to check for faces in
6050 STRING; -1 if the face is constant from POS to the end of the
6053 Value is the id of the face to use. The face returned is suitable
6054 for displaying ASCII characters. */
6057 face_at_string_position (struct window
*w
, Lisp_Object string
,
6058 ptrdiff_t pos
, ptrdiff_t bufpos
,
6059 ptrdiff_t *endptr
, enum face_id base_face_id
,
6062 Lisp_Object prop
, position
, end
, limit
;
6063 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6064 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6065 struct face
*base_face
;
6066 bool multibyte_p
= STRING_MULTIBYTE (string
);
6067 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6069 /* Get the value of the face property at the current position within
6070 STRING. Value is nil if there is no face property. */
6071 XSETFASTINT (position
, pos
);
6072 prop
= Fget_text_property (position
, prop_name
, string
);
6074 /* Get the next position at which to check for faces. Value of end
6075 is nil if face is constant all the way to the end of the string.
6076 Otherwise it is a string position where to check faces next.
6077 Limit is the maximum position up to which to check for property
6078 changes in Fnext_single_property_change. Strings are usually
6079 short, so set the limit to the end of the string. */
6080 XSETFASTINT (limit
, SCHARS (string
));
6081 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6083 *endptr
= XFASTINT (end
);
6087 base_face
= FACE_FROM_ID (f
, base_face_id
);
6089 /* Optimize the default case that there is no face property. */
6092 /* We can't realize faces for different charsets differently
6093 if we don't have fonts, so we can stop here if not working
6094 on a window-system frame. */
6095 || !FRAME_WINDOW_P (f
)
6096 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6097 return base_face
->id
;
6099 /* Begin with attributes from the base face. */
6100 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6102 /* Merge in attributes specified via text properties. */
6104 merge_face_ref (f
, prop
, attrs
, true, 0);
6106 /* Look up a realized face with the given face attributes,
6107 or realize a new one for ASCII characters. */
6108 return lookup_face (f
, attrs
);
6112 /* Merge a face into a realized face.
6114 F is frame where faces are (to be) realized.
6116 FACE_NAME is named face to merge.
6118 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6120 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6122 BASE_FACE_ID is realized face to merge into.
6128 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6131 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6132 struct face
*base_face
;
6134 base_face
= FACE_OPT_FROM_ID (f
, base_face_id
);
6136 return base_face_id
;
6138 if (EQ (face_name
, Qt
))
6140 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6141 return base_face_id
;
6142 face_name
= lface_id_to_name
[face_id
];
6143 /* When called during make-frame, lookup_derived_face may fail
6144 if the faces are uninitialized. Don't signal an error. */
6145 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6146 return (face_id
>= 0 ? face_id
: base_face_id
);
6149 /* Begin with attributes from the base face. */
6150 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6152 if (!NILP (face_name
))
6154 if (!merge_named_face (f
, face_name
, attrs
, 0))
6155 return base_face_id
;
6161 return base_face_id
;
6162 face
= FACE_OPT_FROM_ID (f
, face_id
);
6164 return base_face_id
;
6165 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6168 /* Look up a realized face with the given face attributes,
6169 or realize a new one for ASCII characters. */
6170 return lookup_face (f
, attrs
);
6175 #ifndef HAVE_X_WINDOWS
6176 DEFUN ("x-load-color-file", Fx_load_color_file
,
6177 Sx_load_color_file
, 1, 1, 0,
6178 doc
: /* Create an alist of color entries from an external file.
6180 The file should define one named RGB color per line like so:
6182 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6183 (Lisp_Object filename
)
6186 Lisp_Object cmap
= Qnil
;
6187 Lisp_Object abspath
;
6189 CHECK_STRING (filename
);
6190 abspath
= Fexpand_file_name (filename
, Qnil
);
6193 fp
= emacs_fopen (SSDATA (abspath
), "r" FOPEN_TEXT
);
6197 int red
, green
, blue
;
6200 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6201 if (sscanf (buf
, "%d %d %d %n", &red
, &green
, &blue
, &num
) == 3)
6204 int color
= RGB (red
, green
, blue
);
6206 int color
= (red
<< 16) | (green
<< 8) | blue
;
6208 char *name
= buf
+ num
;
6209 ptrdiff_t len
= strlen (name
);
6210 len
-= 0 < len
&& name
[len
- 1] == '\n';
6211 cmap
= Fcons (Fcons (make_string (name
, len
), make_number (color
)),
6223 /***********************************************************************
6225 ***********************************************************************/
6229 /* Print the contents of the realized face FACE to stderr. */
6232 dump_realized_face (struct face
*face
)
6234 fprintf (stderr
, "ID: %d\n", face
->id
);
6235 #ifdef HAVE_X_WINDOWS
6236 fprintf (stderr
, "gc: %p\n", face
->gc
);
6238 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6240 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6241 fprintf (stderr
, "background: 0x%lx (%s)\n",
6243 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6245 fprintf (stderr
, "font_name: %s (%s)\n",
6246 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6247 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6248 #ifdef HAVE_X_WINDOWS
6249 fprintf (stderr
, "font = %p\n", face
->font
);
6251 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6252 fprintf (stderr
, "underline: %d (%s)\n",
6254 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6255 fprintf (stderr
, "hash: %d\n", face
->hash
);
6259 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6266 fprintf (stderr
, "font selection order: ");
6267 for (i
= 0; i
< ARRAYELTS (font_sort_order
); ++i
)
6268 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6269 fprintf (stderr
, "\n");
6271 fprintf (stderr
, "alternative fonts: ");
6272 debug_print (Vface_alternative_font_family_alist
);
6273 fprintf (stderr
, "\n");
6275 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6276 Fdump_face (make_number (i
));
6282 face
= FACE_OPT_FROM_ID (SELECTED_FRAME (), XINT (n
));
6284 error ("Not a valid face");
6285 dump_realized_face (face
);
6292 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6293 0, 0, 0, doc
: /* */)
6296 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6297 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6298 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6302 #endif /* GLYPH_DEBUG */
6306 /***********************************************************************
6308 ***********************************************************************/
6311 syms_of_xfaces (void)
6313 /* The symbols `face' and `mouse-face' used as text properties. */
6314 DEFSYM (Qface
, "face");
6316 /* Property for basic faces which other faces cannot inherit. */
6317 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6319 /* Error symbol for wrong_type_argument in load_pixmap. */
6320 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6322 /* The name of the function to call when the background of the frame
6323 has changed, frame_set_background_mode. */
6324 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6326 /* Lisp face attribute keywords. */
6327 DEFSYM (QCfamily
, ":family");
6328 DEFSYM (QCheight
, ":height");
6329 DEFSYM (QCweight
, ":weight");
6330 DEFSYM (QCslant
, ":slant");
6331 DEFSYM (QCunderline
, ":underline");
6332 DEFSYM (QCinverse_video
, ":inverse-video");
6333 DEFSYM (QCreverse_video
, ":reverse-video");
6334 DEFSYM (QCforeground
, ":foreground");
6335 DEFSYM (QCbackground
, ":background");
6336 DEFSYM (QCstipple
, ":stipple");
6337 DEFSYM (QCwidth
, ":width");
6338 DEFSYM (QCfont
, ":font");
6339 DEFSYM (QCfontset
, ":fontset");
6340 DEFSYM (QCdistant_foreground
, ":distant-foreground");
6341 DEFSYM (QCbold
, ":bold");
6342 DEFSYM (QCitalic
, ":italic");
6343 DEFSYM (QCoverline
, ":overline");
6344 DEFSYM (QCstrike_through
, ":strike-through");
6345 DEFSYM (QCbox
, ":box");
6346 DEFSYM (QCinherit
, ":inherit");
6348 /* Symbols used for Lisp face attribute values. */
6349 DEFSYM (QCcolor
, ":color");
6350 DEFSYM (QCline_width
, ":line-width");
6351 DEFSYM (QCstyle
, ":style");
6352 DEFSYM (Qline
, "line");
6353 DEFSYM (Qwave
, "wave");
6354 DEFSYM (Qreleased_button
, "released-button");
6355 DEFSYM (Qpressed_button
, "pressed-button");
6356 DEFSYM (Qnormal
, "normal");
6357 DEFSYM (Qextra_light
, "extra-light");
6358 DEFSYM (Qlight
, "light");
6359 DEFSYM (Qsemi_light
, "semi-light");
6360 DEFSYM (Qsemi_bold
, "semi-bold");
6361 DEFSYM (Qbold
, "bold");
6362 DEFSYM (Qextra_bold
, "extra-bold");
6363 DEFSYM (Qultra_bold
, "ultra-bold");
6364 DEFSYM (Qoblique
, "oblique");
6365 DEFSYM (Qitalic
, "italic");
6367 /* The symbols `foreground-color' and `background-color' which can be
6368 used as part of a `face' property. This is for compatibility with
6370 DEFSYM (Qbackground_color
, "background-color");
6371 DEFSYM (Qforeground_color
, "foreground-color");
6373 DEFSYM (Qunspecified
, "unspecified");
6374 DEFSYM (QCignore_defface
, ":ignore-defface");
6376 /* The symbol `face-alias'. A symbol having that property is an
6377 alias for another face. Value of the property is the name of
6378 the aliased face. */
6379 DEFSYM (Qface_alias
, "face-alias");
6381 /* Names of basic faces. */
6382 DEFSYM (Qdefault
, "default");
6383 DEFSYM (Qtool_bar
, "tool-bar");
6384 DEFSYM (Qfringe
, "fringe");
6385 DEFSYM (Qheader_line
, "header-line");
6386 DEFSYM (Qscroll_bar
, "scroll-bar");
6387 DEFSYM (Qmenu
, "menu");
6388 DEFSYM (Qcursor
, "cursor");
6389 DEFSYM (Qborder
, "border");
6390 DEFSYM (Qmouse
, "mouse");
6391 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6392 DEFSYM (Qvertical_border
, "vertical-border");
6394 /* TTY color-related functions (defined in tty-colors.el). */
6395 DEFSYM (Qwindow_divider
, "window-divider");
6396 DEFSYM (Qwindow_divider_first_pixel
, "window-divider-first-pixel");
6397 DEFSYM (Qwindow_divider_last_pixel
, "window-divider-last-pixel");
6398 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6399 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6400 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6402 /* The name of the function used to compute colors on TTYs. */
6403 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6405 Vparam_value_alist
= list1 (Fcons (Qnil
, Qnil
));
6406 staticpro (&Vparam_value_alist
);
6407 Vface_alternative_font_family_alist
= Qnil
;
6408 staticpro (&Vface_alternative_font_family_alist
);
6409 Vface_alternative_font_registry_alist
= Qnil
;
6410 staticpro (&Vface_alternative_font_registry_alist
);
6412 defsubr (&Sinternal_make_lisp_face
);
6413 defsubr (&Sinternal_lisp_face_p
);
6414 defsubr (&Sinternal_set_lisp_face_attribute
);
6415 #ifdef HAVE_WINDOW_SYSTEM
6416 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6418 defsubr (&Scolor_gray_p
);
6419 defsubr (&Scolor_supported_p
);
6420 #ifndef HAVE_X_WINDOWS
6421 defsubr (&Sx_load_color_file
);
6423 defsubr (&Sface_attribute_relative_p
);
6424 defsubr (&Smerge_face_attribute
);
6425 defsubr (&Sinternal_get_lisp_face_attribute
);
6426 defsubr (&Sinternal_lisp_face_attribute_values
);
6427 defsubr (&Sinternal_lisp_face_equal_p
);
6428 defsubr (&Sinternal_lisp_face_empty_p
);
6429 defsubr (&Sinternal_copy_lisp_face
);
6430 defsubr (&Sinternal_merge_in_global_face
);
6431 defsubr (&Sface_font
);
6432 defsubr (&Sframe_face_alist
);
6433 defsubr (&Sdisplay_supports_face_attributes_p
);
6434 defsubr (&Scolor_distance
);
6435 defsubr (&Sinternal_set_font_selection_order
);
6436 defsubr (&Sinternal_set_alternative_font_family_alist
);
6437 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6438 defsubr (&Sface_attributes_as_vector
);
6440 defsubr (&Sdump_face
);
6441 defsubr (&Sshow_face_resources
);
6442 #endif /* GLYPH_DEBUG */
6443 defsubr (&Sclear_face_cache
);
6444 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6446 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6447 defsubr (&Sdump_colors
);
6450 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6451 doc
: /* List of global face definitions (for internal use only.) */);
6452 Vface_new_frame_defaults
= Qnil
;
6454 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6455 doc
: /* Default stipple pattern used on monochrome displays.
6456 This stipple pattern is used on monochrome displays
6457 instead of shades of gray for a face background color.
6458 See `set-face-stipple' for possible values for this variable. */);
6459 Vface_default_stipple
= build_pure_c_string ("gray3");
6461 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6462 doc
: /* An alist of defined terminal colors and their RGB values.
6463 See the docstring of `tty-color-alist' for the details. */);
6464 Vtty_defined_color_alist
= Qnil
;
6466 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6467 doc
: /* Allowed scalable fonts.
6468 A value of nil means don't allow any scalable fonts.
6469 A value of t means allow any scalable font.
6470 Otherwise, value must be a list of regular expressions. A font may be
6471 scaled if its name matches a regular expression in the list.
6472 Note that if value is nil, a scalable font might still be used, if no
6473 other font of the appropriate family and registry is available. */);
6474 Vscalable_fonts_allowed
= Qnil
;
6476 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6477 doc
: /* List of ignored fonts.
6478 Each element is a regular expression that matches names of fonts to
6480 Vface_ignored_fonts
= Qnil
;
6482 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6483 doc
: /* Alist of face remappings.
6484 Each element is of the form:
6486 (FACE . REPLACEMENT),
6488 which causes display of the face FACE to use REPLACEMENT instead.
6489 REPLACEMENT is a face specification, i.e. one of the following:
6492 (2) a property list of attribute/value pairs, or
6493 (3) a list in which each element has the form of (1) or (2).
6495 List values for REPLACEMENT are merged to form the final face
6496 specification, with earlier entries taking precedence, in the same as
6497 as in the `face' text property.
6499 Face-name remapping cycles are suppressed; recursive references use
6500 the underlying face instead of the remapped face. So a remapping of
6503 (FACE EXTRA-FACE... FACE)
6507 (FACE (FACE-ATTR VAL ...) FACE)
6509 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6510 existing definition of FACE. Note that this isn't necessary for the
6511 default face, since every face inherits from the default face.
6513 If this variable is made buffer-local, the face remapping takes effect
6514 only in that buffer. For instance, the mode my-mode could define a
6515 face `my-mode-default', and then in the mode setup function, do:
6517 (set (make-local-variable \\='face-remapping-alist)
6518 \\='((default my-mode-default)))).
6520 Because Emacs normally only redraws screen areas when the underlying
6521 buffer contents change, you may need to call `redraw-display' after
6522 changing this variable for it to take effect. */);
6523 Vface_remapping_alist
= Qnil
;
6525 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6526 doc
: /* Alist of fonts vs the rescaling factors.
6527 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6528 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6529 RESCALE-RATIO is a floating point number to specify how much larger
6530 \(or smaller) font we should use. For instance, if a face requests
6531 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6532 Vface_font_rescale_alist
= Qnil
;
6534 #ifdef HAVE_WINDOW_SYSTEM
6535 defsubr (&Sbitmap_spec_p
);
6536 defsubr (&Sx_list_fonts
);
6537 defsubr (&Sinternal_face_x_get_resource
);
6538 defsubr (&Sx_family_fonts
);