1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2012 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
10 (at 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 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 form of a struct face which is stored in the
116 face cache of the frame on which it was realized.
118 Face realization is done in the context of the character to display
119 because different fonts may be used for different characters. In
120 other words, for characters that have different font
121 specifications, different realized faces are needed to display
124 Font specification is done by fontsets. See the comment in
125 fontset.c for the details. In the current implementation, all ASCII
126 characters share the same font in a fontset.
128 Faces are at first realized for ASCII characters, and, at that
129 time, assigned a specific realized fontset. Hereafter, we call
130 such a face as `ASCII face'. When a face for a multibyte character
131 is realized, it inherits (thus shares) a fontset of an ASCII face
132 that has the same attributes other than font-related ones.
134 Thus, all realized faces have a realized fontset.
139 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
140 font as ASCII characters. That is because it is expected that
141 unibyte text users specify a font that is suitable both for ASCII
142 and raw 8-bit characters.
147 Font selection tries to find the best available matching font for a
148 given (character, face) combination.
150 If the face specifies a fontset name, that fontset determines a
151 pattern for fonts of the given character. If the face specifies a
152 font name or the other font-related attributes, a fontset is
153 realized from the default fontset. In that case, that
154 specification determines a pattern for ASCII characters and the
155 default fontset determines a pattern for multibyte characters.
157 Available fonts on the system on which Emacs runs are then matched
158 against the font pattern. The result of font selection is the best
159 match for the given face attributes in this font list.
161 Font selection can be influenced by the user.
163 1. The user can specify the relative importance he gives the face
164 attributes width, height, weight, and slant by setting
165 face-font-selection-order (faces.el) to a list of face attribute
166 names. The default is '(:width :height :weight :slant), and means
167 that font selection first tries to find a good match for the font
168 width specified by a face, then---within fonts with that
169 width---tries to find a best match for the specified font height,
172 2. Setting face-font-family-alternatives allows the user to
173 specify alternative font families to try if a family specified by a
176 3. Setting face-font-registry-alternatives allows the user to
177 specify all alternative font registries to try for a face
178 specifying a registry.
180 4. Setting face-ignored-fonts allows the user to ignore specific
184 Character composition.
186 Usually, the realization process is already finished when Emacs
187 actually reflects the desired glyph matrix on the screen. However,
188 on displaying a composition (sequence of characters to be composed
189 on the screen), a suitable font for the components of the
190 composition is selected and realized while drawing them on the
191 screen, i.e. the realization process is delayed but in principle
195 Initialization of basic faces.
197 The faces `default', `modeline' are considered `basic faces'.
198 When redisplay happens the first time for a newly created frame,
199 basic faces are realized for CHARSET_ASCII. Frame parameters are
200 used to fill in unspecified attributes of the default face. */
204 #include <sys/types.h>
205 #include <sys/stat.h>
206 #include <stdio.h> /* This needs to be before termchar.h */
210 #include "character.h"
212 #include "keyboard.h"
214 #include "termhooks.h"
216 #ifdef HAVE_X_WINDOWS
220 #include <Xm/XmStrDefs.h>
221 #endif /* USE_MOTIF */
222 #endif /* HAVE_X_WINDOWS */
228 #ifdef HAVE_WINDOW_SYSTEM
232 #undef FRAME_X_DISPLAY_INFO
233 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
234 #define x_display_info w32_display_info
235 #define check_x check_w32
236 #define GCGraphicsExposures 0
237 #endif /* WINDOWSNT */
240 #undef FRAME_X_DISPLAY_INFO
241 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
242 #define x_display_info ns_display_info
243 #define check_x check_ns
244 #define GCGraphicsExposures 0
246 #endif /* HAVE_WINDOW_SYSTEM */
249 #include "dispextern.h"
250 #include "blockinput.h"
252 #include "intervals.h"
253 #include "termchar.h"
257 #ifdef HAVE_X_WINDOWS
259 /* Compensate for a bug in Xos.h on some systems, on which it requires
260 time.h. On some such systems, Xos.h tries to redefine struct
261 timeval and struct timezone if USG is #defined while it is
264 #ifdef XOS_NEEDS_TIME_H
270 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
272 #else /* not XOS_NEEDS_TIME_H */
274 #endif /* not XOS_NEEDS_TIME_H */
276 #endif /* HAVE_X_WINDOWS */
280 /* Number of pt per inch (from the TeXbook). */
282 #define PT_PER_INCH 72.27
284 /* Non-zero if face attribute ATTR is unspecified. */
286 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
288 /* Non-zero if face attribute ATTR is `ignore-defface'. */
290 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
292 /* Value is the number of elements of VECTOR. */
294 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
296 /* Size of hash table of realized faces in face caches (should be a
299 #define FACE_CACHE_BUCKETS_SIZE 1001
301 /* Keyword symbols used for face attribute names. */
303 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
304 static Lisp_Object QCunderline
;
305 static Lisp_Object QCinverse_video
, QCstipple
;
306 Lisp_Object QCforeground
, QCbackground
;
308 static Lisp_Object QCfont
, QCbold
, QCitalic
;
309 static Lisp_Object QCreverse_video
;
310 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
311 static Lisp_Object QCfontset
;
313 /* Symbols used for attribute values. */
317 static Lisp_Object Qline
, Qwave
;
318 static Lisp_Object Qultra_light
, Qreverse_oblique
, Qreverse_italic
;
319 Lisp_Object Qextra_light
, Qlight
;
320 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
321 Lisp_Object Qoblique
;
323 static Lisp_Object Qultra_condensed
, Qextra_condensed
;
324 Lisp_Object Qcondensed
;
325 static Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qextra_expanded
;
326 Lisp_Object Qexpanded
;
327 static Lisp_Object Qultra_expanded
;
328 static Lisp_Object Qreleased_button
, Qpressed_button
;
329 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
330 Lisp_Object Qunspecified
; /* used in dosfns.c */
331 static Lisp_Object QCignore_defface
;
333 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
335 /* The name of the function to call when the background of the frame
336 has changed, frame_set_background_mode. */
338 static Lisp_Object Qframe_set_background_mode
;
340 /* Names of basic faces. */
342 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
343 static Lisp_Object Qregion
;
344 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
345 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
346 Lisp_Object Qmode_line_inactive
;
347 static Lisp_Object Qvertical_border
;
349 /* The symbol `face-alias'. A symbols having that property is an
350 alias for another face. Value of the property is the name of
353 static Lisp_Object Qface_alias
;
355 /* Alist of alternative font families. Each element is of the form
356 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
357 try FAMILY1, then FAMILY2, ... */
359 Lisp_Object Vface_alternative_font_family_alist
;
361 /* Alist of alternative font registries. Each element is of the form
362 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
363 loaded, try REGISTRY1, then REGISTRY2, ... */
365 Lisp_Object Vface_alternative_font_registry_alist
;
367 /* Allowed scalable fonts. A value of nil means don't allow any
368 scalable fonts. A value of t means allow the use of any scalable
369 font. Otherwise, value must be a list of regular expressions. A
370 font may be scaled if its name matches a regular expression in the
373 static Lisp_Object Qscalable_fonts_allowed
;
375 #define DEFAULT_FONT_LIST_LIMIT 100
377 /* The symbols `foreground-color' and `background-color' which can be
378 used as part of a `face' property. This is for compatibility with
381 Lisp_Object Qforeground_color
, Qbackground_color
;
383 /* The symbols `face' and `mouse-face' used as text properties. */
387 /* Property for basic faces which other faces cannot inherit. */
389 static Lisp_Object Qface_no_inherit
;
391 /* Error symbol for wrong_type_argument in load_pixmap. */
393 static Lisp_Object Qbitmap_spec_p
;
395 /* The next ID to assign to Lisp faces. */
397 static int next_lface_id
;
399 /* A vector mapping Lisp face Id's to face names. */
401 static Lisp_Object
*lface_id_to_name
;
402 static ptrdiff_t lface_id_to_name_size
;
404 /* TTY color-related functions (defined in tty-colors.el). */
406 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
408 /* The name of the function used to compute colors on TTYs. */
410 static Lisp_Object Qtty_color_alist
;
412 /* Counter for calls to clear_face_cache. If this counter reaches
413 CLEAR_FONT_TABLE_COUNT, and a frame has more than
414 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
416 static int clear_font_table_count
;
417 #define CLEAR_FONT_TABLE_COUNT 100
418 #define CLEAR_FONT_TABLE_NFONTS 10
420 /* Non-zero means face attributes have been changed since the last
421 redisplay. Used in redisplay_internal. */
423 int face_change_count
;
425 /* Non-zero means don't display bold text if a face's foreground
426 and background colors are the inverse of the default colors of the
427 display. This is a kluge to suppress `bold black' foreground text
428 which is hard to read on an LCD monitor. */
430 static int tty_suppress_bold_inverse_default_colors_p
;
432 /* A list of the form `((x . y))' used to avoid consing in
433 Finternal_set_lisp_face_attribute. */
435 static Lisp_Object Vparam_value_alist
;
437 /* The total number of colors currently allocated. */
440 static int ncolors_allocated
;
441 static int npixmaps_allocated
;
445 /* Non-zero means the definition of the `menu' face for new frames has
448 static int menu_face_changed_default
;
451 /* Function prototypes. */
454 struct named_merge_point
;
456 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
457 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
459 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
461 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
462 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
463 static int realize_basic_faces (struct frame
*);
464 static int realize_default_face (struct frame
*);
465 static void realize_named_face (struct frame
*, Lisp_Object
, int);
466 static struct face_cache
*make_face_cache (struct frame
*);
467 static void clear_face_gcs (struct face_cache
*);
468 static void free_face_cache (struct face_cache
*);
469 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
470 int, struct named_merge_point
*);
473 /***********************************************************************
475 ***********************************************************************/
477 #ifdef HAVE_X_WINDOWS
479 #ifdef DEBUG_X_COLORS
481 /* The following is a poor mans infrastructure for debugging X color
482 allocation problems on displays with PseudoColor-8. Some X servers
483 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
484 color reference counts completely so that they don't signal an
485 error when a color is freed whose reference count is already 0.
486 Other X servers do. To help me debug this, the following code
487 implements a simple reference counting schema of its own, for a
488 single display/screen. --gerd. */
490 /* Reference counts for pixel colors. */
492 int color_count
[256];
494 /* Register color PIXEL as allocated. */
497 register_color (unsigned long pixel
)
499 eassert (pixel
< 256);
500 ++color_count
[pixel
];
504 /* Register color PIXEL as deallocated. */
507 unregister_color (unsigned long pixel
)
509 eassert (pixel
< 256);
510 if (color_count
[pixel
] > 0)
511 --color_count
[pixel
];
517 /* Register N colors from PIXELS as deallocated. */
520 unregister_colors (unsigned long *pixels
, int n
)
523 for (i
= 0; i
< n
; ++i
)
524 unregister_color (pixels
[i
]);
528 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
529 doc
: /* Dump currently allocated colors to stderr. */)
534 fputc ('\n', stderr
);
536 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
539 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
542 fputc ('\n', stderr
);
544 fputc ('\t', stderr
);
548 fputc ('\n', stderr
);
552 #endif /* DEBUG_X_COLORS */
555 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
556 color values. Interrupt input must be blocked when this function
560 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
562 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
564 /* If display has an immutable color map, freeing colors is not
565 necessary and some servers don't allow it. So don't do it. */
566 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
568 #ifdef DEBUG_X_COLORS
569 unregister_colors (pixels
, npixels
);
571 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
579 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
580 color values. Interrupt input must be blocked when this function
584 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
585 long unsigned int *pixels
, int npixels
)
587 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
588 int class = dpyinfo
->visual
->class;
590 /* If display has an immutable color map, freeing colors is not
591 necessary and some servers don't allow it. So don't do it. */
592 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
594 #ifdef DEBUG_X_COLORS
595 unregister_colors (pixels
, npixels
);
597 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
600 #endif /* USE_X_TOOLKIT */
602 /* Create and return a GC for use on frame F. GC values and mask
603 are given by XGCV and MASK. */
606 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
610 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
617 /* Free GC which was used on frame F. */
620 x_free_gc (struct frame
*f
, GC gc
)
622 eassert (interrupt_input_blocked
);
623 IF_DEBUG (eassert (--ngcs
>= 0));
624 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
627 #endif /* HAVE_X_WINDOWS */
630 /* W32 emulation of GCs */
633 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
637 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
644 /* Free GC which was used on frame F. */
647 x_free_gc (struct frame
*f
, GC gc
)
649 IF_DEBUG (eassert (--ngcs
>= 0));
653 #endif /* WINDOWSNT */
656 /* NS emulation of GCs */
659 x_create_gc (struct frame
*f
,
663 GC gc
= xmalloc (sizeof *gc
);
669 x_free_gc (struct frame
*f
, GC gc
)
675 /* If FRAME is nil, return a pointer to the selected frame.
676 Otherwise, check that FRAME is a live frame, and return a pointer
677 to it. NPARAM is the parameter number of FRAME, for
678 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
679 Lisp function definitions. */
681 static inline struct frame
*
682 frame_or_selected_frame (Lisp_Object frame
, int nparam
)
685 frame
= selected_frame
;
687 CHECK_LIVE_FRAME (frame
);
688 return XFRAME (frame
);
692 /***********************************************************************
694 ***********************************************************************/
696 /* Initialize face cache and basic faces for frame F. */
699 init_frame_faces (struct frame
*f
)
701 /* Make a face cache, if F doesn't have one. */
702 if (FRAME_FACE_CACHE (f
) == NULL
)
703 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
705 #ifdef HAVE_WINDOW_SYSTEM
706 /* Make the image cache. */
707 if (FRAME_WINDOW_P (f
))
709 /* We initialize the image cache when creating the first frame
710 on a terminal, and not during terminal creation. This way,
711 `x-open-connection' on a tty won't create an image cache. */
712 if (FRAME_IMAGE_CACHE (f
) == NULL
)
713 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
714 ++FRAME_IMAGE_CACHE (f
)->refcount
;
716 #endif /* HAVE_WINDOW_SYSTEM */
718 /* Realize basic faces. Must have enough information in frame
719 parameters to realize basic faces at this point. */
720 #ifdef HAVE_X_WINDOWS
721 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
724 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
727 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
729 if (!realize_basic_faces (f
))
734 /* Free face cache of frame F. Called from delete_frame. */
737 free_frame_faces (struct frame
*f
)
739 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
743 free_face_cache (face_cache
);
744 FRAME_FACE_CACHE (f
) = NULL
;
747 #ifdef HAVE_WINDOW_SYSTEM
748 if (FRAME_WINDOW_P (f
))
750 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
753 --image_cache
->refcount
;
754 if (image_cache
->refcount
== 0)
755 free_image_cache (f
);
758 #endif /* HAVE_WINDOW_SYSTEM */
762 /* Clear face caches, and recompute basic faces for frame F. Call
763 this after changing frame parameters on which those faces depend,
764 or when realized faces have been freed due to changing attributes
768 recompute_basic_faces (struct frame
*f
)
770 if (FRAME_FACE_CACHE (f
))
772 clear_face_cache (0);
773 if (!realize_basic_faces (f
))
779 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
780 try to free unused fonts, too. */
783 clear_face_cache (int clear_fonts_p
)
785 #ifdef HAVE_WINDOW_SYSTEM
786 Lisp_Object tail
, frame
;
789 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
792 /* Not yet implemented. */
793 clear_font_cache (frame
);
796 /* From time to time see if we can unload some fonts. This also
797 frees all realized faces on all frames. Fonts needed by
798 faces will be loaded again when faces are realized again. */
799 clear_font_table_count
= 0;
801 FOR_EACH_FRAME (tail
, frame
)
803 struct frame
*f
= XFRAME (frame
);
804 if (FRAME_WINDOW_P (f
)
805 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
806 free_all_realized_faces (frame
);
811 /* Clear GCs of realized faces. */
812 FOR_EACH_FRAME (tail
, frame
)
814 struct frame
*f
= XFRAME (frame
);
815 if (FRAME_WINDOW_P (f
))
816 clear_face_gcs (FRAME_FACE_CACHE (f
));
818 clear_image_caches (Qnil
);
820 #endif /* HAVE_WINDOW_SYSTEM */
824 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
825 doc
: /* Clear face caches on all frames.
826 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
827 (Lisp_Object thoroughly
)
829 clear_face_cache (!NILP (thoroughly
));
831 ++windows_or_buffers_changed
;
836 /***********************************************************************
838 ***********************************************************************/
840 #ifdef HAVE_WINDOW_SYSTEM
842 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
843 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
844 A bitmap specification is either a string, a file name, or a list
845 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
846 HEIGHT is its height, and DATA is a string containing the bits of
847 the pixmap. Bits are stored row by row, each row occupies
848 \(WIDTH + 7)/8 bytes. */)
853 if (STRINGP (object
))
854 /* If OBJECT is a string, it's a file name. */
856 else if (CONSP (object
))
858 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
859 HEIGHT must be ints > 0, and DATA must be string large
860 enough to hold a bitmap of the specified size. */
861 Lisp_Object width
, height
, data
;
863 height
= width
= data
= Qnil
;
867 width
= XCAR (object
);
868 object
= XCDR (object
);
871 height
= XCAR (object
);
872 object
= XCDR (object
);
874 data
= XCAR (object
);
879 && RANGED_INTEGERP (1, width
, INT_MAX
)
880 && RANGED_INTEGERP (1, height
, INT_MAX
))
882 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
884 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
889 return pixmap_p
? Qt
: Qnil
;
893 /* Load a bitmap according to NAME (which is either a file name or a
894 pixmap spec) for use on frame F. Value is the bitmap_id (see
895 xfns.c). If NAME is nil, return with a bitmap id of zero. If
896 bitmap cannot be loaded, display a message saying so, and return
897 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
898 if these pointers are not null. */
901 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
,
909 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
914 /* Decode a bitmap spec into a bitmap. */
919 w
= XINT (Fcar (name
));
920 h
= XINT (Fcar (Fcdr (name
)));
921 bits
= Fcar (Fcdr (Fcdr (name
)));
923 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
928 /* It must be a string -- a file name. */
929 bitmap_id
= x_create_bitmap_from_file (f
, name
);
935 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
946 ++npixmaps_allocated
;
949 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
952 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
958 #endif /* HAVE_WINDOW_SYSTEM */
962 /***********************************************************************
964 ***********************************************************************/
966 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
967 RGB_LIST should contain (at least) 3 lisp integers.
968 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
971 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
973 #define PARSE_RGB_LIST_FIELD(field) \
974 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
976 color->field = XINT (XCAR (rgb_list)); \
977 rgb_list = XCDR (rgb_list); \
982 PARSE_RGB_LIST_FIELD (red
);
983 PARSE_RGB_LIST_FIELD (green
);
984 PARSE_RGB_LIST_FIELD (blue
);
990 /* Lookup on frame F the color described by the lisp string COLOR.
991 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
992 non-zero, then the `standard' definition of the same color is
996 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
999 Lisp_Object frame
, color_desc
;
1001 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1004 XSETFRAME (frame
, f
);
1006 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1007 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1011 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1014 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1016 rgb
= XCDR (XCDR (color_desc
));
1017 if (! parse_rgb_list (rgb
, tty_color
))
1020 /* Should we fill in STD_COLOR too? */
1023 /* Default STD_COLOR to the same as TTY_COLOR. */
1024 *std_color
= *tty_color
;
1026 /* Do a quick check to see if the returned descriptor is
1027 actually _exactly_ equal to COLOR, otherwise we have to
1028 lookup STD_COLOR separately. If it's impossible to lookup
1029 a standard color, we just give up and use TTY_COLOR. */
1030 if ((!STRINGP (XCAR (color_desc
))
1031 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1032 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1034 /* Look up STD_COLOR separately. */
1035 rgb
= call1 (Qtty_color_standard_values
, color
);
1036 if (! parse_rgb_list (rgb
, std_color
))
1043 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1044 /* We were called early during startup, and the colors are not
1045 yet set up in tty-defined-color-alist. Don't return a failure
1046 indication, since this produces the annoying "Unable to
1047 load color" messages in the *Messages* buffer. */
1050 /* tty-color-desc seems to have returned a bad value. */
1054 /* A version of defined_color for non-X frames. */
1057 tty_defined_color (struct frame
*f
, const char *color_name
,
1058 XColor
*color_def
, int alloc
)
1063 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1065 color_def
->blue
= 0;
1066 color_def
->green
= 0;
1069 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1071 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1073 if (strcmp (color_name
, "unspecified-fg") == 0)
1074 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1075 else if (strcmp (color_name
, "unspecified-bg") == 0)
1076 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1079 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1086 /* Decide if color named COLOR_NAME is valid for the display
1087 associated with the frame F; if so, return the rgb values in
1088 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1090 This does the right thing for any type of frame. */
1093 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
1096 if (!FRAME_WINDOW_P (f
))
1097 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1098 #ifdef HAVE_X_WINDOWS
1099 else if (FRAME_X_P (f
))
1100 return x_defined_color (f
, color_name
, color_def
, alloc
);
1103 else if (FRAME_W32_P (f
))
1104 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1107 else if (FRAME_NS_P (f
))
1108 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1115 /* Given the index IDX of a tty color on frame F, return its name, a
1119 tty_color_name (struct frame
*f
, int idx
)
1121 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1124 Lisp_Object coldesc
;
1126 XSETFRAME (frame
, f
);
1127 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1129 if (!NILP (coldesc
))
1130 return XCAR (coldesc
);
1133 /* We can have an MSDOG frame under -nw for a short window of
1134 opportunity before internal_terminal_init is called. DTRT. */
1135 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1136 return msdos_stdcolor_name (idx
);
1139 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1140 return build_string (unspecified_fg
);
1141 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1142 return build_string (unspecified_bg
);
1144 return Qunspecified
;
1148 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1151 The criterion implemented here is not a terribly sophisticated one. */
1154 face_color_gray_p (struct frame
*f
, const char *color_name
)
1159 if (defined_color (f
, color_name
, &color
, 0))
1160 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1161 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1163 ((eabs (color
.red
- color
.green
)
1164 < max (color
.red
, color
.green
) / 20)
1165 && (eabs (color
.green
- color
.blue
)
1166 < max (color
.green
, color
.blue
) / 20)
1167 && (eabs (color
.blue
- color
.red
)
1168 < max (color
.blue
, color
.red
) / 20)));
1176 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1177 BACKGROUND_P non-zero means the color will be used as background
1181 face_color_supported_p (struct frame
*f
, const char *color_name
,
1187 XSETFRAME (frame
, f
);
1189 #ifdef HAVE_WINDOW_SYSTEM
1191 ? (!NILP (Fxw_display_color_p (frame
))
1192 || xstrcasecmp (color_name
, "black") == 0
1193 || xstrcasecmp (color_name
, "white") == 0
1195 && face_color_gray_p (f
, color_name
))
1196 || (!NILP (Fx_display_grayscale_p (frame
))
1197 && face_color_gray_p (f
, color_name
)))
1200 tty_defined_color (f
, color_name
, ¬_used
, 0);
1204 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1205 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1206 FRAME specifies the frame and thus the display for interpreting COLOR.
1207 If FRAME is nil or omitted, use the selected frame. */)
1208 (Lisp_Object color
, Lisp_Object frame
)
1212 CHECK_STRING (color
);
1214 frame
= selected_frame
;
1216 CHECK_FRAME (frame
);
1218 return face_color_gray_p (f
, SSDATA (color
)) ? Qt
: Qnil
;
1222 DEFUN ("color-supported-p", Fcolor_supported_p
,
1223 Scolor_supported_p
, 1, 3, 0,
1224 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1225 BACKGROUND-P non-nil means COLOR is used as a background.
1226 Otherwise, this function tells whether it can be used as a foreground.
1227 If FRAME is nil or omitted, use the selected frame.
1228 COLOR must be a valid color name. */)
1229 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1233 CHECK_STRING (color
);
1235 frame
= selected_frame
;
1237 CHECK_FRAME (frame
);
1239 if (face_color_supported_p (f
, SSDATA (color
), !NILP (background_p
)))
1245 /* Load color with name NAME for use by face FACE on frame F.
1246 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1247 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1248 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1249 pixel color. If color cannot be loaded, display a message, and
1250 return the foreground, background or underline color of F, but
1251 record that fact in flags of the face so that we don't try to free
1255 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1256 enum lface_attribute_index target_index
)
1260 eassert (STRINGP (name
));
1261 eassert (target_index
== LFACE_FOREGROUND_INDEX
1262 || target_index
== LFACE_BACKGROUND_INDEX
1263 || target_index
== LFACE_UNDERLINE_INDEX
1264 || target_index
== LFACE_OVERLINE_INDEX
1265 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1266 || target_index
== LFACE_BOX_INDEX
);
1268 /* if the color map is full, defined_color will return a best match
1269 to the values in an existing cell. */
1270 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1272 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1274 switch (target_index
)
1276 case LFACE_FOREGROUND_INDEX
:
1277 face
->foreground_defaulted_p
= 1;
1278 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1281 case LFACE_BACKGROUND_INDEX
:
1282 face
->background_defaulted_p
= 1;
1283 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1286 case LFACE_UNDERLINE_INDEX
:
1287 face
->underline_defaulted_p
= 1;
1288 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1291 case LFACE_OVERLINE_INDEX
:
1292 face
->overline_color_defaulted_p
= 1;
1293 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1296 case LFACE_STRIKE_THROUGH_INDEX
:
1297 face
->strike_through_color_defaulted_p
= 1;
1298 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1301 case LFACE_BOX_INDEX
:
1302 face
->box_color_defaulted_p
= 1;
1303 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1312 ++ncolors_allocated
;
1319 #ifdef HAVE_WINDOW_SYSTEM
1321 /* Load colors for face FACE which is used on frame F. Colors are
1322 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1323 of ATTRS. If the background color specified is not supported on F,
1324 try to emulate gray colors with a stipple from Vface_default_stipple. */
1327 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1331 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1332 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1334 /* Swap colors if face is inverse-video. */
1335 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1343 /* Check for support for foreground, not for background because
1344 face_color_supported_p is smart enough to know that grays are
1345 "supported" as background because we are supposed to use stipple
1347 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1348 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1350 x_destroy_bitmap (f
, face
->stipple
);
1351 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1352 &face
->pixmap_w
, &face
->pixmap_h
);
1355 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1356 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1360 /* Free color PIXEL on frame F. */
1363 unload_color (struct frame
*f
, long unsigned int pixel
)
1365 #ifdef HAVE_X_WINDOWS
1369 x_free_colors (f
, &pixel
, 1);
1376 /* Free colors allocated for FACE. */
1379 free_face_colors (struct frame
*f
, struct face
*face
)
1381 /* PENDING(NS): need to do something here? */
1382 #ifdef HAVE_X_WINDOWS
1383 if (face
->colors_copied_bitwise_p
)
1388 if (!face
->foreground_defaulted_p
)
1390 x_free_colors (f
, &face
->foreground
, 1);
1391 IF_DEBUG (--ncolors_allocated
);
1394 if (!face
->background_defaulted_p
)
1396 x_free_colors (f
, &face
->background
, 1);
1397 IF_DEBUG (--ncolors_allocated
);
1400 if (face
->underline_p
1401 && !face
->underline_defaulted_p
)
1403 x_free_colors (f
, &face
->underline_color
, 1);
1404 IF_DEBUG (--ncolors_allocated
);
1407 if (face
->overline_p
1408 && !face
->overline_color_defaulted_p
)
1410 x_free_colors (f
, &face
->overline_color
, 1);
1411 IF_DEBUG (--ncolors_allocated
);
1414 if (face
->strike_through_p
1415 && !face
->strike_through_color_defaulted_p
)
1417 x_free_colors (f
, &face
->strike_through_color
, 1);
1418 IF_DEBUG (--ncolors_allocated
);
1421 if (face
->box
!= FACE_NO_BOX
1422 && !face
->box_color_defaulted_p
)
1424 x_free_colors (f
, &face
->box_color
, 1);
1425 IF_DEBUG (--ncolors_allocated
);
1429 #endif /* HAVE_X_WINDOWS */
1432 #endif /* HAVE_WINDOW_SYSTEM */
1436 /***********************************************************************
1438 ***********************************************************************/
1440 /* An enumerator for each field of an XLFD font name. */
1461 /* An enumerator for each possible slant value of a font. Taken from
1462 the XLFD specification. */
1470 XLFD_SLANT_REVERSE_ITALIC
,
1471 XLFD_SLANT_REVERSE_OBLIQUE
,
1475 /* Relative font weight according to XLFD documentation. */
1479 XLFD_WEIGHT_UNKNOWN
,
1480 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1481 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1482 XLFD_WEIGHT_LIGHT
, /* 30 */
1483 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1484 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1485 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1486 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1487 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1488 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1491 /* Relative proportionate width. */
1495 XLFD_SWIDTH_UNKNOWN
,
1496 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1497 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1498 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1499 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1500 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1501 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1502 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1503 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1504 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1507 /* Order by which font selection chooses fonts. The default values
1508 mean `first, find a best match for the font width, then for the
1509 font height, then for weight, then for slant.' This variable can be
1510 set via set-face-font-sort-order. */
1512 static int font_sort_order
[4];
1514 #ifdef HAVE_WINDOW_SYSTEM
1516 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1519 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1521 Lisp_Object
const *p1
= v1
;
1522 Lisp_Object
const *p2
= v2
;
1523 Lisp_Object font1
= *p1
;
1524 Lisp_Object font2
= *p2
;
1527 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1529 enum font_property_index idx
= font_props_for_sorting
[i
];
1530 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1533 if (idx
<= FONT_REGISTRY_INDEX
)
1536 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1538 result
= STRINGP (val2
) ? 1 : 0;
1542 if (INTEGERP (val1
))
1543 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1544 ? XINT (val1
) > XINT (val2
)
1547 result
= INTEGERP (val2
) ? 1 : 0;
1555 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1556 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1557 If FAMILY is omitted or nil, list all families.
1558 Otherwise, FAMILY must be a string, possibly containing wildcards
1560 If FRAME is omitted or nil, use the selected frame.
1561 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1562 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1563 FAMILY is the font family name. POINT-SIZE is the size of the
1564 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1565 width, weight and slant of the font. These symbols are the same as for
1566 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1567 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1568 giving the registry and encoding of the font.
1569 The result list is sorted according to the current setting of
1570 the face font sort order. */)
1571 (Lisp_Object family
, Lisp_Object frame
)
1573 Lisp_Object font_spec
, list
, *drivers
, vec
;
1574 ptrdiff_t i
, nfonts
;
1580 frame
= selected_frame
;
1581 CHECK_LIVE_FRAME (frame
);
1583 font_spec
= Ffont_spec (0, NULL
);
1586 CHECK_STRING (family
);
1587 font_parse_family_registry (family
, Qnil
, font_spec
);
1590 list
= font_list_entities (frame
, font_spec
);
1594 /* Sort the font entities. */
1595 for (i
= 0; i
< 4; i
++)
1596 switch (font_sort_order
[i
])
1599 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1600 case XLFD_POINT_SIZE
:
1601 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1603 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1605 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1607 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1608 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1609 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1610 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1612 ndrivers
= XINT (Flength (list
));
1613 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1614 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1615 drivers
[i
] = XCAR (list
);
1616 vec
= Fvconcat (ndrivers
, drivers
);
1617 nfonts
= ASIZE (vec
);
1619 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1620 compare_fonts_by_sort_order
);
1623 for (i
= nfonts
- 1; i
>= 0; --i
)
1625 Lisp_Object font
= AREF (vec
, i
);
1626 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1628 Lisp_Object spacing
;
1630 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1631 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1632 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1633 XFRAME (frame
)->resy
);
1634 ASET (v
, 2, make_number (point
));
1635 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1636 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1637 spacing
= Ffont_get (font
, QCspacing
);
1638 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1639 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1640 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1642 result
= Fcons (v
, result
);
1649 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1650 doc
: /* Return a list of the names of available fonts matching PATTERN.
1651 If optional arguments FACE and FRAME are specified, return only fonts
1652 the same size as FACE on FRAME.
1654 PATTERN should be a string containing a font name in the XLFD,
1655 Fontconfig, or GTK format. A font name given in the XLFD format may
1656 contain wildcard characters:
1657 the * character matches any substring, and
1658 the ? character matches any single character.
1659 PATTERN is case-insensitive.
1661 The return value is a list of strings, suitable as arguments to
1664 Fonts Emacs can't use may or may not be excluded
1665 even if they match PATTERN and FACE.
1666 The optional fourth argument MAXIMUM sets a limit on how many
1667 fonts to match. The first MAXIMUM fonts are reported.
1668 The optional fifth argument WIDTH, if specified, is a number of columns
1669 occupied by a character of a font. In that case, return only fonts
1670 the WIDTH times as wide as FACE on FRAME. */)
1671 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1672 Lisp_Object maximum
, Lisp_Object width
)
1675 int size
, avgwidth
IF_LINT (= 0);
1678 CHECK_STRING (pattern
);
1680 if (! NILP (maximum
))
1681 CHECK_NATNUM (maximum
);
1684 CHECK_NUMBER (width
);
1686 /* We can't simply call check_x_frame because this function may be
1687 called before any frame is created. */
1689 frame
= selected_frame
;
1690 f
= frame_or_selected_frame (frame
, 2);
1691 if (! FRAME_WINDOW_P (f
))
1693 /* Perhaps we have not yet created any frame. */
1699 /* Determine the width standard for comparison with the fonts we find. */
1705 /* This is of limited utility since it works with character
1706 widths. Keep it for compatibility. --gerd. */
1707 int face_id
= lookup_named_face (f
, face
, 0);
1708 struct face
*width_face
= (face_id
< 0
1710 : FACE_FROM_ID (f
, face_id
));
1712 if (width_face
&& width_face
->font
)
1714 size
= width_face
->font
->pixel_size
;
1715 avgwidth
= width_face
->font
->average_width
;
1719 size
= FRAME_FONT (f
)->pixel_size
;
1720 avgwidth
= FRAME_FONT (f
)->average_width
;
1723 avgwidth
*= XINT (width
);
1727 Lisp_Object font_spec
;
1728 Lisp_Object args
[2], tail
;
1730 font_spec
= font_spec_from_name (pattern
);
1731 if (!FONTP (font_spec
))
1732 signal_error ("Invalid font name", pattern
);
1736 Ffont_put (font_spec
, QCsize
, make_number (size
));
1737 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1739 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1740 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1742 Lisp_Object font_entity
;
1744 font_entity
= XCAR (tail
);
1745 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1746 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1747 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1749 /* This is a scalable font. For backward compatibility,
1750 we set the specified size. */
1751 font_entity
= copy_font_spec (font_entity
);
1752 ASET (font_entity
, FONT_SIZE_INDEX
,
1753 AREF (font_spec
, FONT_SIZE_INDEX
));
1755 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1758 /* We don't have to check fontsets. */
1760 args
[1] = list_fontsets (f
, pattern
, size
);
1761 return Fnconc (2, args
);
1765 #endif /* HAVE_WINDOW_SYSTEM */
1768 /***********************************************************************
1770 ***********************************************************************/
1772 /* Access face attributes of face LFACE, a Lisp vector. */
1774 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1775 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1776 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1777 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1778 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1779 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1780 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1781 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1782 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1783 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1784 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1785 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1786 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1787 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1788 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1789 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1790 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1792 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1793 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1795 #define LFACEP(LFACE) \
1797 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1798 && EQ (AREF (LFACE, 0), Qface))
1803 /* Check consistency of Lisp face attribute vector ATTRS. */
1806 check_lface_attrs (Lisp_Object
*attrs
)
1808 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1809 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1810 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1811 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1812 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1813 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1814 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1815 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1816 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1817 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1818 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1819 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1820 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1821 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1822 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1823 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1824 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1825 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1826 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1827 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1828 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1829 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1830 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1831 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1832 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1833 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1834 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1835 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1836 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1837 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1838 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1839 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1840 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1841 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1842 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1843 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1844 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1845 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1846 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1847 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1848 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1849 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1850 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1851 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1852 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1853 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1854 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1855 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1856 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1857 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1858 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1859 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1860 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1861 #ifdef HAVE_WINDOW_SYSTEM
1862 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1863 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1864 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1865 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1866 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1867 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1868 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1869 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1870 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1871 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1876 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1879 check_lface (Lisp_Object lface
)
1883 eassert (LFACEP (lface
));
1884 check_lface_attrs (XVECTOR (lface
)->contents
);
1888 #else /* not GLYPH_DEBUG */
1890 #define check_lface_attrs(attrs) (void) 0
1891 #define check_lface(lface) (void) 0
1893 #endif /* GLYPH_DEBUG */
1897 /* Face-merge cycle checking. */
1899 enum named_merge_point_kind
1901 NAMED_MERGE_POINT_NORMAL
,
1902 NAMED_MERGE_POINT_REMAP
1905 /* A `named merge point' is simply a point during face-merging where we
1906 look up a face by name. We keep a stack of which named lookups we're
1907 currently processing so that we can easily detect cycles, using a
1908 linked- list of struct named_merge_point structures, typically
1909 allocated on the stack frame of the named lookup functions which are
1910 active (so no consing is required). */
1911 struct named_merge_point
1913 Lisp_Object face_name
;
1914 enum named_merge_point_kind named_merge_point_kind
;
1915 struct named_merge_point
*prev
;
1919 /* If a face merging cycle is detected for FACE_NAME, return 0,
1920 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1921 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1922 pointed to by NAMED_MERGE_POINTS, and return 1. */
1925 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1926 Lisp_Object face_name
,
1927 enum named_merge_point_kind named_merge_point_kind
,
1928 struct named_merge_point
**named_merge_points
)
1930 struct named_merge_point
*prev
;
1932 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1933 if (EQ (face_name
, prev
->face_name
))
1935 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1936 /* A cycle, so fail. */
1938 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1939 /* A remap `hides ' any previous normal merge points
1940 (because the remap means that it's actually different face),
1941 so as we know the current merge point must be normal, we
1942 can just assume it's OK. */
1946 new_named_merge_point
->face_name
= face_name
;
1947 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1948 new_named_merge_point
->prev
= *named_merge_points
;
1950 *named_merge_points
= new_named_merge_point
;
1956 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1957 to make it a symbol. If FACE_NAME is an alias for another face,
1958 return that face's name.
1960 Return default face in case of errors. */
1963 resolve_face_name (Lisp_Object face_name
, int signal_p
)
1965 Lisp_Object orig_face
;
1966 Lisp_Object tortoise
, hare
;
1968 if (STRINGP (face_name
))
1969 face_name
= intern (SSDATA (face_name
));
1971 if (NILP (face_name
) || !SYMBOLP (face_name
))
1974 orig_face
= face_name
;
1975 tortoise
= hare
= face_name
;
1980 hare
= Fget (hare
, Qface_alias
);
1981 if (NILP (hare
) || !SYMBOLP (hare
))
1985 hare
= Fget (hare
, Qface_alias
);
1986 if (NILP (hare
) || !SYMBOLP (hare
))
1989 tortoise
= Fget (tortoise
, Qface_alias
);
1990 if (EQ (hare
, tortoise
))
1993 xsignal1 (Qcircular_list
, orig_face
);
2002 /* Return the face definition of FACE_NAME on frame F. F null means
2003 return the definition for new frames. FACE_NAME may be a string or
2004 a symbol (apparently Emacs 20.2 allowed strings as face names in
2005 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2006 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2007 is zero, value is nil if FACE_NAME is not a valid face name. */
2008 static inline Lisp_Object
2009 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
2015 lface
= assq_no_quit (face_name
, f
->face_alist
);
2017 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2020 lface
= XCDR (lface
);
2022 signal_error ("Invalid face", face_name
);
2024 check_lface (lface
);
2029 /* Return the face definition of FACE_NAME on frame F. F null means
2030 return the definition for new frames. FACE_NAME may be a string or
2031 a symbol (apparently Emacs 20.2 allowed strings as face names in
2032 face text properties; Ediff uses that). If FACE_NAME is an alias
2033 for another face, return that face's definition. If SIGNAL_P is
2034 non-zero, signal an error if FACE_NAME is not a valid face name.
2035 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2037 static inline Lisp_Object
2038 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2040 face_name
= resolve_face_name (face_name
, signal_p
);
2041 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2045 /* Get face attributes of face FACE_NAME from frame-local faces on
2046 frame F. Store the resulting attributes in ATTRS which must point
2047 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2048 is non-zero, signal an error if FACE_NAME does not name a face.
2049 Otherwise, value is zero if FACE_NAME is not a face. */
2052 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
2053 Lisp_Object
*attrs
, int signal_p
)
2057 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2060 memcpy (attrs
, XVECTOR (lface
)->contents
,
2061 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2063 return !NILP (lface
);
2066 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2067 F. Store the resulting attributes in ATTRS which must point to a
2068 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2069 alias for another face, use that face's definition. If SIGNAL_P is
2070 non-zero, signal an error if FACE_NAME does not name a face.
2071 Otherwise, value is zero if FACE_NAME is not a face. */
2074 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
2075 Lisp_Object
*attrs
, int signal_p
,
2076 struct named_merge_point
*named_merge_points
)
2078 Lisp_Object face_remapping
;
2080 face_name
= resolve_face_name (face_name
, signal_p
);
2082 /* See if SYMBOL has been remapped to some other face (usually this
2083 is done buffer-locally). */
2084 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2085 if (CONSP (face_remapping
))
2087 struct named_merge_point named_merge_point
;
2089 if (push_named_merge_point (&named_merge_point
,
2090 face_name
, NAMED_MERGE_POINT_REMAP
,
2091 &named_merge_points
))
2095 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2096 attrs
[i
] = Qunspecified
;
2098 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2099 signal_p
, named_merge_points
);
2103 /* Default case, no remapping. */
2104 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2108 /* Non-zero if all attributes in face attribute vector ATTRS are
2109 specified, i.e. are non-nil. */
2112 lface_fully_specified_p (Lisp_Object
*attrs
)
2116 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2117 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2118 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2121 return i
== LFACE_VECTOR_SIZE
;
2124 #ifdef HAVE_WINDOW_SYSTEM
2126 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2127 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2128 exception is `font' attribute. It is set to FONT_OBJECT regardless
2132 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
2133 Lisp_Object font_object
, int force_p
)
2136 struct font
*font
= XFONT_OBJECT (font_object
);
2138 /* Set attributes only if unspecified, otherwise face defaults for
2139 new frames would never take effect. If the font doesn't have a
2140 specific property, set a normal value for that. */
2142 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2144 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2146 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2149 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2151 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2153 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2156 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2158 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2161 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2164 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2166 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2167 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2169 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2171 val
= FONT_SLANT_FOR_FACE (font_object
);
2172 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2174 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2176 val
= FONT_WIDTH_FOR_FACE (font_object
);
2177 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2180 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2184 #endif /* HAVE_WINDOW_SYSTEM */
2187 /* Merges the face height FROM with the face height TO, and returns the
2188 merged height. If FROM is an invalid height, then INVALID is
2189 returned instead. FROM and TO may be either absolute face heights or
2190 `relative' heights; the returned value is always an absolute height
2191 unless both FROM and TO are relative. */
2194 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2196 Lisp_Object result
= invalid
;
2198 if (INTEGERP (from
))
2199 /* FROM is absolute, just use it as is. */
2201 else if (FLOATP (from
))
2202 /* FROM is a scale, use it to adjust TO. */
2205 /* relative X absolute => absolute */
2206 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2207 else if (FLOATP (to
))
2208 /* relative X relative => relative */
2209 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2210 else if (UNSPECIFIEDP (to
))
2213 else if (FUNCTIONP (from
))
2214 /* FROM is a function, which use to adjust TO. */
2216 /* Call function with current height as argument.
2217 From is the new height. */
2218 result
= safe_call1 (from
, to
);
2220 /* Ensure that if TO was absolute, so is the result. */
2221 if (INTEGERP (to
) && !INTEGERP (result
))
2229 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2230 store the resulting attributes in TO, which must be already be
2231 completely specified and contain only absolute attributes. Every
2232 specified attribute of FROM overrides the corresponding attribute of
2233 TO; relative attributes in FROM are merged with the absolute value in
2234 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2235 loops in face inheritance/remapping; it should be 0 when called from
2239 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2240 struct named_merge_point
*named_merge_points
)
2243 Lisp_Object font
= Qnil
;
2245 /* If FROM inherits from some other faces, merge their attributes into
2246 TO before merging FROM's direct attributes. Note that an :inherit
2247 attribute of `unspecified' is the same as one of nil; we never
2248 merge :inherit attributes, so nil is more correct, but lots of
2249 other code uses `unspecified' as a generic value for face attributes. */
2250 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2251 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2252 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2254 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2256 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2257 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2259 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2260 to
[LFACE_FONT_INDEX
] = font
;
2263 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2264 if (!UNSPECIFIEDP (from
[i
]))
2266 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2268 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2269 font_clear_prop (to
, FONT_SIZE_INDEX
);
2271 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2274 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2275 font_clear_prop (to
,
2276 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2277 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2278 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2279 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2280 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2281 : FONT_SLANT_INDEX
));
2285 /* If FROM specifies a font spec, make its contents take precedence
2286 over :family and other attributes. This is needed for face
2287 remapping using :font to work. */
2291 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2292 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2293 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2294 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2295 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2296 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2297 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2298 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2299 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2300 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2301 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2304 /* TO is always an absolute face, which should inherit from nothing.
2305 We blindly copy the :inherit attribute above and fix it up here. */
2306 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2309 /* Merge the named face FACE_NAME on frame F, into the vector of face
2310 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2311 inheritance. Returns true if FACE_NAME is a valid face name and
2312 merging succeeded. */
2315 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2316 struct named_merge_point
*named_merge_points
)
2318 struct named_merge_point named_merge_point
;
2320 if (push_named_merge_point (&named_merge_point
,
2321 face_name
, NAMED_MERGE_POINT_NORMAL
,
2322 &named_merge_points
))
2324 struct gcpro gcpro1
;
2325 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2326 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2330 GCPRO1 (named_merge_point
.face_name
);
2331 merge_face_vectors (f
, from
, to
, named_merge_points
);
2342 /* Merge face attributes from the lisp `face reference' FACE_REF on
2343 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2344 problems with FACE_REF cause an error message to be shown. Return
2345 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2346 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2347 list structure; it may be 0 for most callers.
2349 FACE_REF may be a single face specification or a list of such
2350 specifications. Each face specification can be:
2352 1. A symbol or string naming a Lisp face.
2354 2. A property list of the form (KEYWORD VALUE ...) where each
2355 KEYWORD is a face attribute name, and value is an appropriate value
2358 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2359 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2360 for compatibility with 20.2.
2362 Face specifications earlier in lists take precedence over later
2366 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2367 int err_msgs
, struct named_merge_point
*named_merge_points
)
2369 int ok
= 1; /* Succeed without an error? */
2371 if (CONSP (face_ref
))
2373 Lisp_Object first
= XCAR (face_ref
);
2375 if (EQ (first
, Qforeground_color
)
2376 || EQ (first
, Qbackground_color
))
2378 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2379 . COLOR). COLOR must be a string. */
2380 Lisp_Object color_name
= XCDR (face_ref
);
2381 Lisp_Object color
= first
;
2383 if (STRINGP (color_name
))
2385 if (EQ (color
, Qforeground_color
))
2386 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2388 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2393 add_to_log ("Invalid face color", color_name
, Qnil
);
2397 else if (SYMBOLP (first
)
2398 && *SDATA (SYMBOL_NAME (first
)) == ':')
2400 /* Assume this is the property list form. */
2401 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2403 Lisp_Object keyword
= XCAR (face_ref
);
2404 Lisp_Object value
= XCAR (XCDR (face_ref
));
2407 /* Specifying `unspecified' is a no-op. */
2408 if (EQ (value
, Qunspecified
))
2410 else if (EQ (keyword
, QCfamily
))
2412 if (STRINGP (value
))
2414 to
[LFACE_FAMILY_INDEX
] = value
;
2415 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2420 else if (EQ (keyword
, QCfoundry
))
2422 if (STRINGP (value
))
2424 to
[LFACE_FOUNDRY_INDEX
] = value
;
2425 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2430 else if (EQ (keyword
, QCheight
))
2432 Lisp_Object new_height
=
2433 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2435 if (! NILP (new_height
))
2437 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2438 font_clear_prop (to
, FONT_SIZE_INDEX
);
2443 else if (EQ (keyword
, QCweight
))
2445 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2447 to
[LFACE_WEIGHT_INDEX
] = value
;
2448 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2453 else if (EQ (keyword
, QCslant
))
2455 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2457 to
[LFACE_SLANT_INDEX
] = value
;
2458 font_clear_prop (to
, FONT_SLANT_INDEX
);
2463 else if (EQ (keyword
, QCunderline
))
2469 to
[LFACE_UNDERLINE_INDEX
] = value
;
2473 else if (EQ (keyword
, QCoverline
))
2478 to
[LFACE_OVERLINE_INDEX
] = value
;
2482 else if (EQ (keyword
, QCstrike_through
))
2487 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2491 else if (EQ (keyword
, QCbox
))
2494 value
= make_number (1);
2495 if (INTEGERP (value
)
2499 to
[LFACE_BOX_INDEX
] = value
;
2503 else if (EQ (keyword
, QCinverse_video
)
2504 || EQ (keyword
, QCreverse_video
))
2506 if (EQ (value
, Qt
) || NILP (value
))
2507 to
[LFACE_INVERSE_INDEX
] = value
;
2511 else if (EQ (keyword
, QCforeground
))
2513 if (STRINGP (value
))
2514 to
[LFACE_FOREGROUND_INDEX
] = value
;
2518 else if (EQ (keyword
, QCbackground
))
2520 if (STRINGP (value
))
2521 to
[LFACE_BACKGROUND_INDEX
] = value
;
2525 else if (EQ (keyword
, QCstipple
))
2527 #if defined (HAVE_WINDOW_SYSTEM)
2528 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2529 if (!NILP (pixmap_p
))
2530 to
[LFACE_STIPPLE_INDEX
] = value
;
2533 #endif /* HAVE_WINDOW_SYSTEM */
2535 else if (EQ (keyword
, QCwidth
))
2537 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2539 to
[LFACE_SWIDTH_INDEX
] = value
;
2540 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2545 else if (EQ (keyword
, QCfont
))
2548 to
[LFACE_FONT_INDEX
] = value
;
2552 else if (EQ (keyword
, QCinherit
))
2554 /* This is not really very useful; it's just like a
2555 normal face reference. */
2556 if (! merge_face_ref (f
, value
, to
,
2557 err_msgs
, named_merge_points
))
2565 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2569 face_ref
= XCDR (XCDR (face_ref
));
2574 /* This is a list of face refs. Those at the beginning of the
2575 list take precedence over what follows, so we have to merge
2576 from the end backwards. */
2577 Lisp_Object next
= XCDR (face_ref
);
2580 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2582 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2588 /* FACE_REF ought to be a face name. */
2589 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2590 if (!ok
&& err_msgs
)
2591 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2598 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2599 Sinternal_make_lisp_face
, 1, 2, 0,
2600 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2601 If FACE was not known as a face before, create a new one.
2602 If optional argument FRAME is specified, make a frame-local face
2603 for that frame. Otherwise operate on the global face definition.
2604 Value is a vector of face attributes. */)
2605 (Lisp_Object face
, Lisp_Object frame
)
2607 Lisp_Object global_lface
, lface
;
2611 CHECK_SYMBOL (face
);
2612 global_lface
= lface_from_face_name (NULL
, face
, 0);
2616 CHECK_LIVE_FRAME (frame
);
2618 lface
= lface_from_face_name (f
, face
, 0);
2621 f
= NULL
, lface
= Qnil
;
2623 /* Add a global definition if there is none. */
2624 if (NILP (global_lface
))
2626 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2628 ASET (global_lface
, 0, Qface
);
2629 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2630 Vface_new_frame_defaults
);
2632 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2633 face id to Lisp face is given by the vector lface_id_to_name.
2634 The mapping from Lisp face to Lisp face id is given by the
2635 property `face' of the Lisp face name. */
2636 if (next_lface_id
== lface_id_to_name_size
)
2638 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2639 sizeof *lface_id_to_name
);
2641 lface_id_to_name
[next_lface_id
] = face
;
2642 Fput (face
, Qface
, make_number (next_lface_id
));
2646 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2647 ASET (global_lface
, i
, Qunspecified
);
2649 /* Add a frame-local definition. */
2654 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2656 ASET (lface
, 0, Qface
);
2657 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2660 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2661 ASET (lface
, i
, Qunspecified
);
2664 lface
= global_lface
;
2666 /* Changing a named face means that all realized faces depending on
2667 that face are invalid. Since we cannot tell which realized faces
2668 depend on the face, make sure they are all removed. This is done
2669 by incrementing face_change_count. The next call to
2670 init_iterator will then free realized faces. */
2671 if (NILP (Fget (face
, Qface_no_inherit
)))
2673 ++face_change_count
;
2674 ++windows_or_buffers_changed
;
2677 eassert (LFACEP (lface
));
2678 check_lface (lface
);
2683 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2684 Sinternal_lisp_face_p
, 1, 2, 0,
2685 doc
: /* Return non-nil if FACE names a face.
2686 FACE should be a symbol or string.
2687 If optional second argument FRAME is non-nil, check for the
2688 existence of a frame-local face with name FACE on that frame.
2689 Otherwise check for the existence of a global face. */)
2690 (Lisp_Object face
, Lisp_Object frame
)
2694 face
= resolve_face_name (face
, 1);
2698 CHECK_LIVE_FRAME (frame
);
2699 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2702 lface
= lface_from_face_name (NULL
, face
, 0);
2708 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2709 Sinternal_copy_lisp_face
, 4, 4, 0,
2710 doc
: /* Copy face FROM to TO.
2711 If FRAME is t, copy the global face definition of FROM.
2712 Otherwise, copy the frame-local definition of FROM on FRAME.
2713 If NEW-FRAME is a frame, copy that data into the frame-local
2714 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2715 FRAME controls where the data is copied to.
2717 The value is TO. */)
2718 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2720 Lisp_Object lface
, copy
;
2722 CHECK_SYMBOL (from
);
2727 /* Copy global definition of FROM. We don't make copies of
2728 strings etc. because 20.2 didn't do it either. */
2729 lface
= lface_from_face_name (NULL
, from
, 1);
2730 copy
= Finternal_make_lisp_face (to
, Qnil
);
2734 /* Copy frame-local definition of FROM. */
2735 if (NILP (new_frame
))
2737 CHECK_LIVE_FRAME (frame
);
2738 CHECK_LIVE_FRAME (new_frame
);
2739 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2740 copy
= Finternal_make_lisp_face (to
, new_frame
);
2743 vcopy (copy
, 0, XVECTOR (lface
)->contents
, LFACE_VECTOR_SIZE
);
2745 /* Changing a named face means that all realized faces depending on
2746 that face are invalid. Since we cannot tell which realized faces
2747 depend on the face, make sure they are all removed. This is done
2748 by incrementing face_change_count. The next call to
2749 init_iterator will then free realized faces. */
2750 if (NILP (Fget (to
, Qface_no_inherit
)))
2752 ++face_change_count
;
2753 ++windows_or_buffers_changed
;
2760 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2761 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2762 doc
: /* Set attribute ATTR of FACE to VALUE.
2763 FRAME being a frame means change the face on that frame.
2764 FRAME nil means change the face of the selected frame.
2765 FRAME t means change the default for new frames.
2766 FRAME 0 means change the face on all frames, and change the default
2768 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2771 Lisp_Object old_value
= Qnil
;
2772 /* Set one of enum font_property_index (> 0) if ATTR is one of
2773 font-related attributes other than QCfont and QCfontset. */
2774 enum font_property_index prop_index
= 0;
2776 CHECK_SYMBOL (face
);
2777 CHECK_SYMBOL (attr
);
2779 face
= resolve_face_name (face
, 1);
2781 /* If FRAME is 0, change face on all frames, and change the
2782 default for new frames. */
2783 if (INTEGERP (frame
) && XINT (frame
) == 0)
2786 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2787 FOR_EACH_FRAME (tail
, frame
)
2788 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2792 /* Set lface to the Lisp attribute vector of FACE. */
2795 lface
= lface_from_face_name (NULL
, face
, 1);
2797 /* When updating face-new-frame-defaults, we put :ignore-defface
2798 where the caller wants `unspecified'. This forces the frame
2799 defaults to ignore the defface value. Otherwise, the defface
2800 will take effect, which is generally not what is intended.
2801 The value of that attribute will be inherited from some other
2802 face during face merging. See internal_merge_in_global_face. */
2803 if (UNSPECIFIEDP (value
))
2804 value
= QCignore_defface
;
2809 frame
= selected_frame
;
2811 CHECK_LIVE_FRAME (frame
);
2812 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2814 /* If a frame-local face doesn't exist yet, create one. */
2816 lface
= Finternal_make_lisp_face (face
, frame
);
2819 if (EQ (attr
, QCfamily
))
2821 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2823 CHECK_STRING (value
);
2824 if (SCHARS (value
) == 0)
2825 signal_error ("Invalid face family", value
);
2827 old_value
= LFACE_FAMILY (lface
);
2828 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2829 prop_index
= FONT_FAMILY_INDEX
;
2831 else if (EQ (attr
, QCfoundry
))
2833 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2835 CHECK_STRING (value
);
2836 if (SCHARS (value
) == 0)
2837 signal_error ("Invalid face foundry", value
);
2839 old_value
= LFACE_FOUNDRY (lface
);
2840 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2841 prop_index
= FONT_FOUNDRY_INDEX
;
2843 else if (EQ (attr
, QCheight
))
2845 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2847 if (EQ (face
, Qdefault
))
2849 /* The default face must have an absolute size. */
2850 if (!INTEGERP (value
) || XINT (value
) <= 0)
2851 signal_error ("Default face height not absolute and positive",
2856 /* For non-default faces, do a test merge with a random
2857 height to see if VALUE's ok. */
2858 Lisp_Object test
= merge_face_heights (value
,
2861 if (!INTEGERP (test
) || XINT (test
) <= 0)
2862 signal_error ("Face height does not produce a positive integer",
2867 old_value
= LFACE_HEIGHT (lface
);
2868 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2869 prop_index
= FONT_SIZE_INDEX
;
2871 else if (EQ (attr
, QCweight
))
2873 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2875 CHECK_SYMBOL (value
);
2876 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2877 signal_error ("Invalid face weight", value
);
2879 old_value
= LFACE_WEIGHT (lface
);
2880 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2881 prop_index
= FONT_WEIGHT_INDEX
;
2883 else if (EQ (attr
, QCslant
))
2885 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2887 CHECK_SYMBOL (value
);
2888 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2889 signal_error ("Invalid face slant", value
);
2891 old_value
= LFACE_SLANT (lface
);
2892 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2893 prop_index
= FONT_SLANT_INDEX
;
2895 else if (EQ (attr
, QCunderline
))
2899 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2901 else if (NILP (value
) || EQ (value
, Qt
))
2903 else if (STRINGP (value
) && SCHARS (value
) > 0)
2905 else if (CONSP (value
))
2907 Lisp_Object key
, val
, list
;
2912 while (!NILP (CAR_SAFE(list
)))
2914 key
= CAR_SAFE (list
);
2915 list
= CDR_SAFE (list
);
2916 val
= CAR_SAFE (list
);
2917 list
= CDR_SAFE (list
);
2919 if (NILP (key
) || NILP (val
))
2925 else if (EQ (key
, QCcolor
)
2926 && !(EQ (val
, Qforeground_color
)
2927 || (STRINGP (val
) && SCHARS (val
) > 0)))
2933 else if (EQ (key
, QCstyle
)
2934 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2943 signal_error ("Invalid face underline", value
);
2945 old_value
= LFACE_UNDERLINE (lface
);
2946 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2948 else if (EQ (attr
, QCoverline
))
2950 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2951 if ((SYMBOLP (value
)
2953 && !EQ (value
, Qnil
))
2954 /* Overline color. */
2956 && SCHARS (value
) == 0))
2957 signal_error ("Invalid face overline", value
);
2959 old_value
= LFACE_OVERLINE (lface
);
2960 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2962 else if (EQ (attr
, QCstrike_through
))
2964 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2965 if ((SYMBOLP (value
)
2967 && !EQ (value
, Qnil
))
2968 /* Strike-through color. */
2970 && SCHARS (value
) == 0))
2971 signal_error ("Invalid face strike-through", value
);
2973 old_value
= LFACE_STRIKE_THROUGH (lface
);
2974 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2976 else if (EQ (attr
, QCbox
))
2980 /* Allow t meaning a simple box of width 1 in foreground color
2983 value
= make_number (1);
2985 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2987 else if (NILP (value
))
2989 else if (INTEGERP (value
))
2990 valid_p
= XINT (value
) != 0;
2991 else if (STRINGP (value
))
2992 valid_p
= SCHARS (value
) > 0;
2993 else if (CONSP (value
))
3009 if (EQ (k
, QCline_width
))
3011 if (!INTEGERP (v
) || XINT (v
) == 0)
3014 else if (EQ (k
, QCcolor
))
3016 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3019 else if (EQ (k
, QCstyle
))
3021 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3028 valid_p
= NILP (tem
);
3034 signal_error ("Invalid face box", value
);
3036 old_value
= LFACE_BOX (lface
);
3037 ASET (lface
, LFACE_BOX_INDEX
, value
);
3039 else if (EQ (attr
, QCinverse_video
)
3040 || EQ (attr
, QCreverse_video
))
3042 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3044 CHECK_SYMBOL (value
);
3045 if (!EQ (value
, Qt
) && !NILP (value
))
3046 signal_error ("Invalid inverse-video face attribute value", value
);
3048 old_value
= LFACE_INVERSE (lface
);
3049 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
3051 else if (EQ (attr
, QCforeground
))
3053 /* Compatibility with 20.x. */
3055 value
= Qunspecified
;
3056 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3058 /* Don't check for valid color names here because it depends
3059 on the frame (display) whether the color will be valid
3060 when the face is realized. */
3061 CHECK_STRING (value
);
3062 if (SCHARS (value
) == 0)
3063 signal_error ("Empty foreground color value", value
);
3065 old_value
= LFACE_FOREGROUND (lface
);
3066 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3068 else if (EQ (attr
, QCbackground
))
3070 /* Compatibility with 20.x. */
3072 value
= Qunspecified
;
3073 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3075 /* Don't check for valid color names here because it depends
3076 on the frame (display) whether the color will be valid
3077 when the face is realized. */
3078 CHECK_STRING (value
);
3079 if (SCHARS (value
) == 0)
3080 signal_error ("Empty background color value", value
);
3082 old_value
= LFACE_BACKGROUND (lface
);
3083 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3085 else if (EQ (attr
, QCstipple
))
3087 #if defined (HAVE_WINDOW_SYSTEM)
3088 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3090 && NILP (Fbitmap_spec_p (value
)))
3091 signal_error ("Invalid stipple attribute", value
);
3092 old_value
= LFACE_STIPPLE (lface
);
3093 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3094 #endif /* HAVE_WINDOW_SYSTEM */
3096 else if (EQ (attr
, QCwidth
))
3098 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3100 CHECK_SYMBOL (value
);
3101 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3102 signal_error ("Invalid face width", value
);
3104 old_value
= LFACE_SWIDTH (lface
);
3105 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3106 prop_index
= FONT_WIDTH_INDEX
;
3108 else if (EQ (attr
, QCfont
))
3110 #ifdef HAVE_WINDOW_SYSTEM
3111 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3113 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3117 old_value
= LFACE_FONT (lface
);
3118 if (! FONTP (value
))
3120 if (STRINGP (value
))
3122 Lisp_Object name
= value
;
3123 int fontset
= fs_query_fontset (name
, 0);
3126 name
= fontset_ascii (fontset
);
3127 value
= font_spec_from_name (name
);
3129 signal_error ("Invalid font name", name
);
3132 signal_error ("Invalid font or font-spec", value
);
3135 f
= XFRAME (selected_frame
);
3138 if (! FONT_OBJECT_P (value
))
3140 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3141 Lisp_Object font_object
;
3143 font_object
= font_load_for_lface (f
, attrs
, value
);
3144 if (NILP (font_object
))
3145 signal_error ("Font not available", value
);
3146 value
= font_object
;
3148 set_lface_from_font (f
, lface
, value
, 1);
3151 ASET (lface
, LFACE_FONT_INDEX
, value
);
3153 #endif /* HAVE_WINDOW_SYSTEM */
3155 else if (EQ (attr
, QCfontset
))
3157 #ifdef HAVE_WINDOW_SYSTEM
3158 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3162 old_value
= LFACE_FONTSET (lface
);
3163 tmp
= Fquery_fontset (value
, Qnil
);
3165 signal_error ("Invalid fontset name", value
);
3166 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3168 #endif /* HAVE_WINDOW_SYSTEM */
3170 else if (EQ (attr
, QCinherit
))
3173 if (SYMBOLP (value
))
3176 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3177 if (!SYMBOLP (XCAR (tail
)))
3180 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3182 signal_error ("Invalid face inheritance", value
);
3184 else if (EQ (attr
, QCbold
))
3186 old_value
= LFACE_WEIGHT (lface
);
3187 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3188 prop_index
= FONT_WEIGHT_INDEX
;
3190 else if (EQ (attr
, QCitalic
))
3193 old_value
= LFACE_SLANT (lface
);
3194 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3195 prop_index
= FONT_SLANT_INDEX
;
3198 signal_error ("Invalid face attribute name", attr
);
3202 /* If a font-related attribute other than QCfont and QCfontset
3203 is specified, and if the original QCfont attribute has a font
3204 (font-spec or font-object), set the corresponding property in
3205 the font to nil so that the font selector doesn't think that
3206 the attribute is mandatory. Also, clear the average
3208 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3211 /* Changing a named face means that all realized faces depending on
3212 that face are invalid. Since we cannot tell which realized faces
3213 depend on the face, make sure they are all removed. This is done
3214 by incrementing face_change_count. The next call to
3215 init_iterator will then free realized faces. */
3217 && NILP (Fget (face
, Qface_no_inherit
))
3218 && NILP (Fequal (old_value
, value
)))
3220 ++face_change_count
;
3221 ++windows_or_buffers_changed
;
3224 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3225 && NILP (Fequal (old_value
, value
)))
3231 if (EQ (face
, Qdefault
))
3233 #ifdef HAVE_WINDOW_SYSTEM
3234 /* Changed font-related attributes of the `default' face are
3235 reflected in changed `font' frame parameters. */
3237 && (prop_index
|| EQ (attr
, QCfont
))
3238 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3239 set_font_frame_param (frame
, lface
);
3241 #endif /* HAVE_WINDOW_SYSTEM */
3243 if (EQ (attr
, QCforeground
))
3244 param
= Qforeground_color
;
3245 else if (EQ (attr
, QCbackground
))
3246 param
= Qbackground_color
;
3248 #ifdef HAVE_WINDOW_SYSTEM
3250 else if (EQ (face
, Qscroll_bar
))
3252 /* Changing the colors of `scroll-bar' sets frame parameters
3253 `scroll-bar-foreground' and `scroll-bar-background'. */
3254 if (EQ (attr
, QCforeground
))
3255 param
= Qscroll_bar_foreground
;
3256 else if (EQ (attr
, QCbackground
))
3257 param
= Qscroll_bar_background
;
3259 #endif /* not WINDOWSNT */
3260 else if (EQ (face
, Qborder
))
3262 /* Changing background color of `border' sets frame parameter
3264 if (EQ (attr
, QCbackground
))
3265 param
= Qborder_color
;
3267 else if (EQ (face
, Qcursor
))
3269 /* Changing background color of `cursor' sets frame parameter
3271 if (EQ (attr
, QCbackground
))
3272 param
= Qcursor_color
;
3274 else if (EQ (face
, Qmouse
))
3276 /* Changing background color of `mouse' sets frame parameter
3278 if (EQ (attr
, QCbackground
))
3279 param
= Qmouse_color
;
3281 #endif /* HAVE_WINDOW_SYSTEM */
3282 else if (EQ (face
, Qmenu
))
3284 /* Indicate that we have to update the menu bar when
3285 realizing faces on FRAME. FRAME t change the
3286 default for new frames. We do this by setting
3287 setting the flag in new face caches */
3290 struct frame
*f
= XFRAME (frame
);
3291 if (FRAME_FACE_CACHE (f
) == NULL
)
3292 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3293 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3296 menu_face_changed_default
= 1;
3302 /* Update `default-frame-alist', which is used for new frames. */
3304 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3307 /* Update the current frame's parameters. */
3310 cons
= XCAR (Vparam_value_alist
);
3311 XSETCAR (cons
, param
);
3312 XSETCDR (cons
, value
);
3313 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3322 /* Update the corresponding face when frame parameter PARAM on frame F
3323 has been assigned the value NEW_VALUE. */
3326 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3327 Lisp_Object new_value
)
3329 Lisp_Object face
= Qnil
;
3332 /* If there are no faces yet, give up. This is the case when called
3333 from Fx_create_frame, and we do the necessary things later in
3334 face-set-after-frame-defaults. */
3335 if (NILP (f
->face_alist
))
3338 if (EQ (param
, Qforeground_color
))
3341 lface
= lface_from_face_name (f
, face
, 1);
3342 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3343 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3344 realize_basic_faces (f
);
3346 else if (EQ (param
, Qbackground_color
))
3350 /* Changing the background color might change the background
3351 mode, so that we have to load new defface specs.
3352 Call frame-set-background-mode to do that. */
3353 XSETFRAME (frame
, f
);
3354 call1 (Qframe_set_background_mode
, frame
);
3357 lface
= lface_from_face_name (f
, face
, 1);
3358 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3359 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3360 realize_basic_faces (f
);
3362 #ifdef HAVE_WINDOW_SYSTEM
3363 else if (EQ (param
, Qborder_color
))
3366 lface
= lface_from_face_name (f
, face
, 1);
3367 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3368 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3370 else if (EQ (param
, Qcursor_color
))
3373 lface
= lface_from_face_name (f
, face
, 1);
3374 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3375 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3377 else if (EQ (param
, Qmouse_color
))
3380 lface
= lface_from_face_name (f
, face
, 1);
3381 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3382 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3386 /* Changing a named face means that all realized faces depending on
3387 that face are invalid. Since we cannot tell which realized faces
3388 depend on the face, make sure they are all removed. This is done
3389 by incrementing face_change_count. The next call to
3390 init_iterator will then free realized faces. */
3392 && NILP (Fget (face
, Qface_no_inherit
)))
3394 ++face_change_count
;
3395 ++windows_or_buffers_changed
;
3400 #ifdef HAVE_WINDOW_SYSTEM
3402 /* Set the `font' frame parameter of FRAME determined from the
3403 font-object set in `default' face attributes LFACE. */
3406 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3408 struct frame
*f
= XFRAME (frame
);
3411 if (FRAME_WINDOW_P (f
)
3412 /* Don't do anything if the font is `unspecified'. This can
3413 happen during frame creation. */
3414 && (font
= LFACE_FONT (lface
),
3415 ! UNSPECIFIEDP (font
)))
3417 if (FONT_SPEC_P (font
))
3419 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3422 ASET (lface
, LFACE_FONT_INDEX
, font
);
3424 f
->default_face_done_p
= 0;
3425 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3430 /* Get the value of X resource RESOURCE, class CLASS for the display
3431 of frame FRAME. This is here because ordinary `x-get-resource'
3432 doesn't take a frame argument. */
3434 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3435 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3436 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3438 Lisp_Object value
= Qnil
;
3439 CHECK_STRING (resource
);
3440 CHECK_STRING (class);
3441 CHECK_LIVE_FRAME (frame
);
3443 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3444 resource
, class, Qnil
, Qnil
);
3450 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3451 If VALUE is "on" or "true", return t. If VALUE is "off" or
3452 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3453 error; if SIGNAL_P is zero, return 0. */
3456 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3458 Lisp_Object result
= make_number (0);
3460 eassert (STRINGP (value
));
3462 if (xstrcasecmp (SSDATA (value
), "on") == 0
3463 || xstrcasecmp (SSDATA (value
), "true") == 0)
3465 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3466 || xstrcasecmp (SSDATA (value
), "false") == 0)
3468 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3469 result
= Qunspecified
;
3471 signal_error ("Invalid face attribute value from X resource", value
);
3477 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3478 Finternal_set_lisp_face_attribute_from_resource
,
3479 Sinternal_set_lisp_face_attribute_from_resource
,
3480 3, 4, 0, doc
: /* */)
3481 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3483 CHECK_SYMBOL (face
);
3484 CHECK_SYMBOL (attr
);
3485 CHECK_STRING (value
);
3487 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3488 value
= Qunspecified
;
3489 else if (EQ (attr
, QCheight
))
3491 value
= Fstring_to_number (value
, make_number (10));
3492 if (XINT (value
) <= 0)
3493 signal_error ("Invalid face height from X resource", value
);
3495 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3496 value
= face_boolean_x_resource_value (value
, 1);
3497 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3498 value
= intern (SSDATA (value
));
3499 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3500 value
= face_boolean_x_resource_value (value
, 1);
3501 else if (EQ (attr
, QCunderline
)
3502 || EQ (attr
, QCoverline
)
3503 || EQ (attr
, QCstrike_through
))
3505 Lisp_Object boolean_value
;
3507 /* If the result of face_boolean_x_resource_value is t or nil,
3508 VALUE does NOT specify a color. */
3509 boolean_value
= face_boolean_x_resource_value (value
, 0);
3510 if (SYMBOLP (boolean_value
))
3511 value
= boolean_value
;
3513 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3514 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3516 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3519 #endif /* HAVE_WINDOW_SYSTEM */
3522 /***********************************************************************
3524 ***********************************************************************/
3526 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3528 /* Make menus on frame F appear as specified by the `menu' face. */
3531 x_update_menu_appearance (struct frame
*f
)
3533 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3537 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3542 ptrdiff_t bufsize
= sizeof line
;
3543 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3544 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3545 const char *myname
= SSDATA (Vx_resource_name
);
3548 const char *popup_path
= "popup_menu";
3550 const char *popup_path
= "menu.popup";
3553 if (STRINGP (LFACE_FOREGROUND (lface
)))
3555 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3557 SDATA (LFACE_FOREGROUND (lface
)));
3558 XrmPutLineResource (&rdb
, line
);
3559 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3560 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3561 XrmPutLineResource (&rdb
, line
);
3565 if (STRINGP (LFACE_BACKGROUND (lface
)))
3567 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3569 SDATA (LFACE_BACKGROUND (lface
)));
3570 XrmPutLineResource (&rdb
, line
);
3572 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3573 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3574 XrmPutLineResource (&rdb
, line
);
3579 /* On Solaris 5.8, it's been reported that the `menu' face
3580 can be unspecified here, during startup. Why this
3581 happens remains unknown. -- cyd */
3582 && FONTP (LFACE_FONT (lface
))
3583 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3584 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3585 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3586 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3587 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3588 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3590 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3592 const char *suffix
= "List";
3595 #if defined HAVE_X_I18N
3597 const char *suffix
= "Set";
3599 const char *suffix
= "";
3606 #if defined HAVE_X_I18N
3607 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3609 char *fontsetname
= SSDATA (xlfd
);
3611 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3612 myname
, suffix
, fontsetname
);
3613 XrmPutLineResource (&rdb
, line
);
3615 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3616 myname
, popup_path
, suffix
, fontsetname
);
3617 XrmPutLineResource (&rdb
, line
);
3619 if (fontsetname
!= SSDATA (xlfd
))
3620 xfree (fontsetname
);
3624 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3625 free_frame_menubar (f
);
3632 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3635 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3636 Sface_attribute_relative_p
,
3638 doc
: /* Check whether a face attribute value is relative.
3639 Specifically, this function returns t if the attribute ATTRIBUTE
3640 with the value VALUE is relative.
3642 A relative value is one that doesn't entirely override whatever is
3643 inherited from another face. For most possible attributes,
3644 the only relative value that users see is `unspecified'.
3645 However, for :height, floating point values are also relative. */)
3646 (Lisp_Object attribute
, Lisp_Object value
)
3648 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3650 else if (EQ (attribute
, QCheight
))
3651 return INTEGERP (value
) ? Qnil
: Qt
;
3656 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3658 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3659 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3660 the result will be absolute, otherwise it will be relative. */)
3661 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3663 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3665 else if (EQ (attribute
, QCheight
))
3666 return merge_face_heights (value1
, value2
, value1
);
3672 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3673 Sinternal_get_lisp_face_attribute
,
3675 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3676 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3677 face attribute name, signal an error.
3678 If the optional argument FRAME is given, report on face SYMBOL in that
3679 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3680 frames). If FRAME is omitted or nil, use the selected frame. */)
3681 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3683 Lisp_Object lface
, value
= Qnil
;
3685 CHECK_SYMBOL (symbol
);
3686 CHECK_SYMBOL (keyword
);
3689 lface
= lface_from_face_name (NULL
, symbol
, 1);
3693 frame
= selected_frame
;
3694 CHECK_LIVE_FRAME (frame
);
3695 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3698 if (EQ (keyword
, QCfamily
))
3699 value
= LFACE_FAMILY (lface
);
3700 else if (EQ (keyword
, QCfoundry
))
3701 value
= LFACE_FOUNDRY (lface
);
3702 else if (EQ (keyword
, QCheight
))
3703 value
= LFACE_HEIGHT (lface
);
3704 else if (EQ (keyword
, QCweight
))
3705 value
= LFACE_WEIGHT (lface
);
3706 else if (EQ (keyword
, QCslant
))
3707 value
= LFACE_SLANT (lface
);
3708 else if (EQ (keyword
, QCunderline
))
3709 value
= LFACE_UNDERLINE (lface
);
3710 else if (EQ (keyword
, QCoverline
))
3711 value
= LFACE_OVERLINE (lface
);
3712 else if (EQ (keyword
, QCstrike_through
))
3713 value
= LFACE_STRIKE_THROUGH (lface
);
3714 else if (EQ (keyword
, QCbox
))
3715 value
= LFACE_BOX (lface
);
3716 else if (EQ (keyword
, QCinverse_video
)
3717 || EQ (keyword
, QCreverse_video
))
3718 value
= LFACE_INVERSE (lface
);
3719 else if (EQ (keyword
, QCforeground
))
3720 value
= LFACE_FOREGROUND (lface
);
3721 else if (EQ (keyword
, QCbackground
))
3722 value
= LFACE_BACKGROUND (lface
);
3723 else if (EQ (keyword
, QCstipple
))
3724 value
= LFACE_STIPPLE (lface
);
3725 else if (EQ (keyword
, QCwidth
))
3726 value
= LFACE_SWIDTH (lface
);
3727 else if (EQ (keyword
, QCinherit
))
3728 value
= LFACE_INHERIT (lface
);
3729 else if (EQ (keyword
, QCfont
))
3730 value
= LFACE_FONT (lface
);
3731 else if (EQ (keyword
, QCfontset
))
3732 value
= LFACE_FONTSET (lface
);
3734 signal_error ("Invalid face attribute name", keyword
);
3736 if (IGNORE_DEFFACE_P (value
))
3737 return Qunspecified
;
3743 DEFUN ("internal-lisp-face-attribute-values",
3744 Finternal_lisp_face_attribute_values
,
3745 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3746 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3747 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3750 Lisp_Object result
= Qnil
;
3752 CHECK_SYMBOL (attr
);
3754 if (EQ (attr
, QCunderline
))
3755 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3756 else if (EQ (attr
, QCoverline
))
3757 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3758 else if (EQ (attr
, QCstrike_through
))
3759 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3760 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3761 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3767 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3768 Sinternal_merge_in_global_face
, 2, 2, 0,
3769 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3770 Default face attributes override any local face attributes. */)
3771 (Lisp_Object face
, Lisp_Object frame
)
3774 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3775 struct frame
*f
= XFRAME (frame
);
3777 CHECK_LIVE_FRAME (frame
);
3778 global_lface
= lface_from_face_name (NULL
, face
, 1);
3779 local_lface
= lface_from_face_name (f
, face
, 0);
3780 if (NILP (local_lface
))
3781 local_lface
= Finternal_make_lisp_face (face
, frame
);
3783 /* Make every specified global attribute override the local one.
3784 BEWARE!! This is only used from `face-set-after-frame-default' where
3785 the local frame is defined from default specs in `face-defface-spec'
3786 and those should be overridden by global settings. Hence the strange
3787 "global before local" priority. */
3788 lvec
= XVECTOR (local_lface
)->contents
;
3789 gvec
= XVECTOR (global_lface
)->contents
;
3790 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3791 if (IGNORE_DEFFACE_P (gvec
[i
]))
3792 ASET (local_lface
, i
, Qunspecified
);
3793 else if (! UNSPECIFIEDP (gvec
[i
]))
3794 ASET (local_lface
, i
, AREF (global_lface
, i
));
3796 /* If the default face was changed, update the face cache and the
3797 `font' frame parameter. */
3798 if (EQ (face
, Qdefault
))
3800 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3801 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3802 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3804 /* This can be NULL (e.g., in batch mode). */
3807 /* Ensure that the face vector is fully specified by merging
3808 the previously-cached vector. */
3809 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3810 merge_face_vectors (f
, lvec
, attrs
, 0);
3811 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3812 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3814 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3815 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3816 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3817 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3818 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3819 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3820 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3823 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3824 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3828 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3829 Fmodify_frame_parameters (frame
,
3830 Fcons (Fcons (Qforeground_color
,
3831 gvec
[LFACE_FOREGROUND_INDEX
]),
3834 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3835 Fmodify_frame_parameters (frame
,
3836 Fcons (Fcons (Qbackground_color
,
3837 gvec
[LFACE_BACKGROUND_INDEX
]),
3846 /* The following function is implemented for compatibility with 20.2.
3847 The function is used in x-resolve-fonts when it is asked to
3848 return fonts with the same size as the font of a face. This is
3849 done in fontset.el. */
3851 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3852 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3853 The font name is, by default, for ASCII characters.
3854 If the optional argument FRAME is given, report on face FACE in that frame.
3855 If FRAME is t, report on the defaults for face FACE (for new frames).
3856 The font default for a face is either nil, or a list
3857 of the form (bold), (italic) or (bold italic).
3858 If FRAME is omitted or nil, use the selected frame. And, in this case,
3859 if the optional third argument CHARACTER is given,
3860 return the font name used for CHARACTER. */)
3861 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3865 Lisp_Object result
= Qnil
;
3866 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3868 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3869 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3870 result
= Fcons (Qbold
, result
);
3872 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3873 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3874 result
= Fcons (Qitalic
, result
);
3880 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3881 int face_id
= lookup_named_face (f
, face
, 1);
3882 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3886 #ifdef HAVE_WINDOW_SYSTEM
3887 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3889 CHECK_CHARACTER (character
);
3890 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3891 fface
= FACE_FROM_ID (f
, face_id
);
3894 ? fface
->font
->props
[FONT_NAME_INDEX
]
3896 #else /* !HAVE_WINDOW_SYSTEM */
3897 return build_string (FRAME_MSDOS_P (f
)
3899 : FRAME_W32_P (f
) ? "w32term"
3906 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3907 all attributes are `equal'. Tries to be fast because this function
3908 is called quite often. */
3911 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3913 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3914 and the other is specified. */
3915 if (XTYPE (v1
) != XTYPE (v2
))
3924 if (SBYTES (v1
) != SBYTES (v2
))
3927 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3934 return !NILP (Fequal (v1
, v2
));
3939 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3940 all attributes are `equal'. Tries to be fast because this function
3941 is called quite often. */
3944 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3948 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3949 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3955 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3956 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3957 doc
: /* True if FACE1 and FACE2 are equal.
3958 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3959 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3960 If FRAME is omitted or nil, use the selected frame. */)
3961 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3965 Lisp_Object lface1
, lface2
;
3970 /* Don't use check_x_frame here because this function is called
3971 before X frames exist. At that time, if FRAME is nil,
3972 selected_frame will be used which is the frame dumped with
3973 Emacs. That frame is not an X frame. */
3974 f
= frame_or_selected_frame (frame
, 2);
3976 lface1
= lface_from_face_name (f
, face1
, 1);
3977 lface2
= lface_from_face_name (f
, face2
, 1);
3978 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3979 XVECTOR (lface2
)->contents
);
3980 return equal_p
? Qt
: Qnil
;
3984 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3985 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3986 doc
: /* True if FACE has no attribute specified.
3987 If the optional argument FRAME is given, report on face FACE in that frame.
3988 If FRAME is t, report on the defaults for face FACE (for new frames).
3989 If FRAME is omitted or nil, use the selected frame. */)
3990 (Lisp_Object face
, Lisp_Object frame
)
3997 frame
= selected_frame
;
3998 CHECK_LIVE_FRAME (frame
);
4002 lface
= lface_from_face_name (NULL
, face
, 1);
4004 lface
= lface_from_face_name (f
, face
, 1);
4006 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4007 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4010 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4014 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4016 doc
: /* Return an alist of frame-local faces defined on FRAME.
4017 For internal use only. */)
4020 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4021 return f
->face_alist
;
4025 /* Return a hash code for Lisp string STRING with case ignored. Used
4026 below in computing a hash value for a Lisp face. */
4028 static inline unsigned
4029 hash_string_case_insensitive (Lisp_Object string
)
4031 const unsigned char *s
;
4033 eassert (STRINGP (string
));
4034 for (s
= SDATA (string
); *s
; ++s
)
4035 hash
= (hash
<< 1) ^ c_tolower (*s
);
4040 /* Return a hash code for face attribute vector V. */
4042 static inline unsigned
4043 lface_hash (Lisp_Object
*v
)
4045 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4046 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4047 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4048 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4049 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4050 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4051 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4052 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4056 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4057 considering charsets/registries). They do if they specify the same
4058 family, point size, weight, width, slant, and font. Both
4059 LFACE1 and LFACE2 must be fully-specified. */
4062 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4064 eassert (lface_fully_specified_p (lface1
)
4065 && lface_fully_specified_p (lface2
));
4066 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4067 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4068 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4069 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4070 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4071 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4072 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4073 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4074 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4075 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4076 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4077 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4078 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4079 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4085 /***********************************************************************
4087 ***********************************************************************/
4089 /* Allocate and return a new realized face for Lisp face attribute
4092 static struct face
*
4093 make_realized_face (Lisp_Object
*attr
)
4095 struct face
*face
= xzalloc (sizeof *face
);
4096 face
->ascii_face
= face
;
4097 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4102 /* Free realized face FACE, including its X resources. FACE may
4106 free_realized_face (struct frame
*f
, struct face
*face
)
4110 #ifdef HAVE_WINDOW_SYSTEM
4111 if (FRAME_WINDOW_P (f
))
4113 /* Free fontset of FACE if it is ASCII face. */
4114 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4115 free_face_fontset (f
, face
);
4120 font_done_for_face (f
, face
);
4121 x_free_gc (f
, face
->gc
);
4126 free_face_colors (f
, face
);
4127 x_destroy_bitmap (f
, face
->stipple
);
4129 #endif /* HAVE_WINDOW_SYSTEM */
4136 /* Prepare face FACE for subsequent display on frame F. This
4137 allocated GCs if they haven't been allocated yet or have been freed
4138 by clearing the face cache. */
4141 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4143 #ifdef HAVE_WINDOW_SYSTEM
4144 eassert (FRAME_WINDOW_P (f
));
4149 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4151 xgcv
.foreground
= face
->foreground
;
4152 xgcv
.background
= face
->background
;
4153 #ifdef HAVE_X_WINDOWS
4154 xgcv
.graphics_exposures
= False
;
4158 #ifdef HAVE_X_WINDOWS
4161 xgcv
.fill_style
= FillOpaqueStippled
;
4162 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4163 mask
|= GCFillStyle
| GCStipple
;
4166 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4168 font_prepare_for_face (f
, face
);
4171 #endif /* HAVE_WINDOW_SYSTEM */
4175 /* Returns the `distance' between the colors X and Y. */
4178 color_distance (XColor
*x
, XColor
*y
)
4180 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4181 Quoting from that paper:
4183 This formula has results that are very close to L*u*v* (with the
4184 modified lightness curve) and, more importantly, it is a more even
4185 algorithm: it does not have a range of colors where it suddenly
4186 gives far from optimal results.
4188 See <http://www.compuphase.com/cmetric.htm> for more info. */
4190 long r
= (x
->red
- y
->red
) >> 8;
4191 long g
= (x
->green
- y
->green
) >> 8;
4192 long b
= (x
->blue
- y
->blue
) >> 8;
4193 long r_mean
= (x
->red
+ y
->red
) >> 9;
4196 (((512 + r_mean
) * r
* r
) >> 8)
4198 + (((767 - r_mean
) * b
* b
) >> 8);
4202 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4203 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4204 COLOR1 and COLOR2 may be either strings containing the color name,
4205 or lists of the form (RED GREEN BLUE).
4206 If FRAME is unspecified or nil, the current frame is used. */)
4207 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4210 XColor cdef1
, cdef2
;
4213 frame
= selected_frame
;
4214 CHECK_LIVE_FRAME (frame
);
4217 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4218 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4219 signal_error ("Invalid color", color1
);
4220 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4221 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4222 signal_error ("Invalid color", color2
);
4224 return make_number (color_distance (&cdef1
, &cdef2
));
4228 /***********************************************************************
4230 ***********************************************************************/
4232 /* Return a new face cache for frame F. */
4234 static struct face_cache
*
4235 make_face_cache (struct frame
*f
)
4237 struct face_cache
*c
;
4240 c
= xzalloc (sizeof *c
);
4241 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4242 c
->buckets
= xzalloc (size
);
4244 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4246 c
->menu_face_changed_p
= menu_face_changed_default
;
4251 /* Clear out all graphics contexts for all realized faces, except for
4252 the basic faces. This should be done from time to time just to avoid
4253 keeping too many graphics contexts that are no longer needed. */
4256 clear_face_gcs (struct face_cache
*c
)
4258 if (c
&& FRAME_WINDOW_P (c
->f
))
4260 #ifdef HAVE_WINDOW_SYSTEM
4262 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4264 struct face
*face
= c
->faces_by_id
[i
];
4265 if (face
&& face
->gc
)
4269 font_done_for_face (c
->f
, face
);
4270 x_free_gc (c
->f
, face
->gc
);
4275 #endif /* HAVE_WINDOW_SYSTEM */
4280 /* Free all realized faces in face cache C, including basic faces.
4281 C may be null. If faces are freed, make sure the frame's current
4282 matrix is marked invalid, so that a display caused by an expose
4283 event doesn't try to use faces we destroyed. */
4286 free_realized_faces (struct face_cache
*c
)
4291 struct frame
*f
= c
->f
;
4293 /* We must block input here because we can't process X events
4294 safely while only some faces are freed, or when the frame's
4295 current matrix still references freed faces. */
4298 for (i
= 0; i
< c
->used
; ++i
)
4300 free_realized_face (f
, c
->faces_by_id
[i
]);
4301 c
->faces_by_id
[i
] = NULL
;
4305 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4306 memset (c
->buckets
, 0, size
);
4308 /* Must do a thorough redisplay the next time. Mark current
4309 matrices as invalid because they will reference faces freed
4310 above. This function is also called when a frame is
4311 destroyed. In this case, the root window of F is nil. */
4312 if (WINDOWP (f
->root_window
))
4314 clear_current_matrices (f
);
4315 ++windows_or_buffers_changed
;
4323 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4324 This is done after attributes of a named face have been changed,
4325 because we can't tell which realized faces depend on that face. */
4328 free_all_realized_faces (Lisp_Object frame
)
4333 FOR_EACH_FRAME (rest
, frame
)
4334 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4337 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4341 /* Free face cache C and faces in it, including their X resources. */
4344 free_face_cache (struct face_cache
*c
)
4348 free_realized_faces (c
);
4350 xfree (c
->faces_by_id
);
4356 /* Cache realized face FACE in face cache C. HASH is the hash value
4357 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4358 FACE), insert the new face to the beginning of the collision list
4359 of the face hash table of C. Otherwise, add the new face to the
4360 end of the collision list. This way, lookup_face can quickly find
4361 that a requested face is not cached. */
4364 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4366 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4370 if (face
->ascii_face
!= face
)
4372 struct face
*last
= c
->buckets
[i
];
4383 c
->buckets
[i
] = face
;
4384 face
->prev
= face
->next
= NULL
;
4390 face
->next
= c
->buckets
[i
];
4392 face
->next
->prev
= face
;
4393 c
->buckets
[i
] = face
;
4396 /* Find a free slot in C->faces_by_id and use the index of the free
4397 slot as FACE->id. */
4398 for (i
= 0; i
< c
->used
; ++i
)
4399 if (c
->faces_by_id
[i
] == NULL
)
4404 /* Check that FACE got a unique id. */
4409 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4410 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4416 #endif /* GLYPH_DEBUG */
4418 /* Maybe enlarge C->faces_by_id. */
4421 if (c
->used
== c
->size
)
4422 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4423 sizeof *c
->faces_by_id
);
4427 c
->faces_by_id
[i
] = face
;
4431 /* Remove face FACE from cache C. */
4434 uncache_face (struct face_cache
*c
, struct face
*face
)
4436 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4439 face
->prev
->next
= face
->next
;
4441 c
->buckets
[i
] = face
->next
;
4444 face
->next
->prev
= face
->prev
;
4446 c
->faces_by_id
[face
->id
] = NULL
;
4447 if (face
->id
== c
->used
)
4452 /* Look up a realized face with face attributes ATTR in the face cache
4453 of frame F. The face will be used to display ASCII characters.
4454 Value is the ID of the face found. If no suitable face is found,
4455 realize a new one. */
4458 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4460 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4465 eassert (cache
!= NULL
);
4466 check_lface_attrs (attr
);
4468 /* Look up ATTR in the face cache. */
4469 hash
= lface_hash (attr
);
4470 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4472 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4474 if (face
->ascii_face
!= face
)
4476 /* There's no more ASCII face. */
4480 if (face
->hash
== hash
4481 && lface_equal_p (face
->lface
, attr
))
4485 /* If not found, realize a new face. */
4487 face
= realize_face (cache
, attr
, -1);
4490 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4491 #endif /* GLYPH_DEBUG */
4496 #ifdef HAVE_WINDOW_SYSTEM
4497 /* Look up a realized face that has the same attributes as BASE_FACE
4498 except for the font in the face cache of frame F. If FONT-OBJECT
4499 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4500 the face has no font. Value is the ID of the face found. If no
4501 suitable face is found, realize a new one. */
4504 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4506 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4511 eassert (cache
!= NULL
);
4512 base_face
= base_face
->ascii_face
;
4513 hash
= lface_hash (base_face
->lface
);
4514 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4516 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4518 if (face
->ascii_face
== face
)
4520 if (face
->ascii_face
== base_face
4521 && face
->font
== (NILP (font_object
) ? NULL
4522 : XFONT_OBJECT (font_object
))
4523 && lface_equal_p (face
->lface
, base_face
->lface
))
4527 /* If not found, realize a new face. */
4528 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4531 #endif /* HAVE_WINDOW_SYSTEM */
4533 /* Return the face id of the realized face for named face SYMBOL on
4534 frame F suitable for displaying ASCII characters. Value is -1 if
4535 the face couldn't be determined, which might happen if the default
4536 face isn't realized and cannot be realized. */
4539 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4541 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4542 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4543 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4545 if (default_face
== NULL
)
4547 if (!realize_basic_faces (f
))
4549 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4550 if (default_face
== NULL
)
4551 emacs_abort (); /* realize_basic_faces must have set it up */
4554 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4557 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4558 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4560 return lookup_face (f
, attrs
);
4564 /* Return the display face-id of the basic face whose canonical face-id
4565 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4566 basic face has bee remapped via Vface_remapping_alist. This function is
4567 conservative: if something goes wrong, it will simply return FACE_ID
4568 rather than signal an error. */
4571 lookup_basic_face (struct frame
*f
, int face_id
)
4573 Lisp_Object name
, mapping
;
4574 int remapped_face_id
;
4576 if (NILP (Vface_remapping_alist
))
4577 return face_id
; /* Nothing to do. */
4581 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4582 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4583 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4584 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4585 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4586 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4587 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4588 case BORDER_FACE_ID
: name
= Qborder
; break;
4589 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4590 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4591 case MENU_FACE_ID
: name
= Qmenu
; break;
4594 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4597 /* Do a quick scan through Vface_remapping_alist, and return immediately
4598 if there is no remapping for face NAME. This is just an optimization
4599 for the very common no-remapping case. */
4600 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4602 return face_id
; /* Give up. */
4604 /* If there is a remapping entry, lookup the face using NAME, which will
4605 handle the remapping too. */
4606 remapped_face_id
= lookup_named_face (f
, name
, 0);
4607 if (remapped_face_id
< 0)
4608 return face_id
; /* Give up. */
4610 return remapped_face_id
;
4614 /* Return a face for charset ASCII that is like the face with id
4615 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4616 STEPS < 0 means larger. Value is the id of the face. */
4619 smaller_face (struct frame
*f
, int face_id
, int steps
)
4621 #ifdef HAVE_WINDOW_SYSTEM
4623 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4624 int pt
, last_pt
, last_height
;
4627 struct face
*new_face
;
4629 /* If not called for an X frame, just return the original face. */
4630 if (FRAME_TERMCAP_P (f
))
4633 /* Try in increments of 1/2 pt. */
4634 delta
= steps
< 0 ? 5 : -5;
4635 steps
= eabs (steps
);
4637 face
= FACE_FROM_ID (f
, face_id
);
4638 memcpy (attrs
, face
->lface
, sizeof attrs
);
4639 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4640 new_face_id
= face_id
;
4641 last_height
= FONT_HEIGHT (face
->font
);
4645 /* Give up if we cannot find a font within 10pt. */
4646 && eabs (last_pt
- pt
) < 100)
4648 /* Look up a face for a slightly smaller/larger font. */
4650 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4651 new_face_id
= lookup_face (f
, attrs
);
4652 new_face
= FACE_FROM_ID (f
, new_face_id
);
4654 /* If height changes, count that as one step. */
4655 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4656 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4659 last_height
= FONT_HEIGHT (new_face
->font
);
4666 #else /* not HAVE_WINDOW_SYSTEM */
4670 #endif /* not HAVE_WINDOW_SYSTEM */
4674 /* Return a face for charset ASCII that is like the face with id
4675 FACE_ID on frame F, but has height HEIGHT. */
4678 face_with_height (struct frame
*f
, int face_id
, int height
)
4680 #ifdef HAVE_WINDOW_SYSTEM
4682 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4684 if (FRAME_TERMCAP_P (f
)
4688 face
= FACE_FROM_ID (f
, face_id
);
4689 memcpy (attrs
, face
->lface
, sizeof attrs
);
4690 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4691 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4692 face_id
= lookup_face (f
, attrs
);
4693 #endif /* HAVE_WINDOW_SYSTEM */
4699 /* Return the face id of the realized face for named face SYMBOL on
4700 frame F suitable for displaying ASCII characters, and use
4701 attributes of the face FACE_ID for attributes that aren't
4702 completely specified by SYMBOL. This is like lookup_named_face,
4703 except that the default attributes come from FACE_ID, not from the
4704 default face. FACE_ID is assumed to be already realized. */
4707 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4710 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4711 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4712 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4717 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4720 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4721 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4722 return lookup_face (f
, attrs
);
4725 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4726 Sface_attributes_as_vector
, 1, 1, 0,
4727 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4731 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4733 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4740 /***********************************************************************
4741 Face capability testing
4742 ***********************************************************************/
4745 /* If the distance (as returned by color_distance) between two colors is
4746 less than this, then they are considered the same, for determining
4747 whether a color is supported or not. The range of values is 0-65535. */
4749 #define TTY_SAME_COLOR_THRESHOLD 10000
4751 #ifdef HAVE_WINDOW_SYSTEM
4753 /* Return non-zero if all the face attributes in ATTRS are supported
4754 on the window-system frame F.
4756 The definition of `supported' is somewhat heuristic, but basically means
4757 that a face containing all the attributes in ATTRS, when merged with the
4758 default face for display, can be represented in a way that's
4760 \(1) different in appearance than the default face, and
4761 \(2) `close in spirit' to what the attributes specify, if not exact. */
4764 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4765 struct face
*def_face
)
4767 Lisp_Object
*def_attrs
= def_face
->lface
;
4769 /* Check that other specified attributes are different that the default
4771 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4772 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4773 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4774 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4775 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4776 def_attrs
[LFACE_INVERSE_INDEX
]))
4777 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4778 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4779 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4780 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4781 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4782 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4783 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4784 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4785 def_attrs
[LFACE_STIPPLE_INDEX
]))
4786 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4787 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4788 def_attrs
[LFACE_OVERLINE_INDEX
]))
4789 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4790 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4791 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4792 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4793 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4794 def_attrs
[LFACE_BOX_INDEX
])))
4797 /* Check font-related attributes, as those are the most commonly
4798 "unsupported" on a window-system (because of missing fonts). */
4799 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4800 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4801 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4802 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4803 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4804 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4808 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4811 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4813 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4815 face_id
= lookup_face (f
, merged_attrs
);
4816 face
= FACE_FROM_ID (f
, face_id
);
4819 error ("Cannot make face");
4821 /* If the font is the same, or no font is found, then not
4823 if (face
->font
== def_face
->font
4826 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4827 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4831 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4832 || face
->font
->driver
->case_sensitive
)
4834 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4835 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4836 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4837 s2
, make_number (0), Qnil
, Qt
), Qt
))
4843 /* Everything checks out, this face is supported. */
4847 #endif /* HAVE_WINDOW_SYSTEM */
4849 /* Return non-zero if all the face attributes in ATTRS are supported
4852 The definition of `supported' is somewhat heuristic, but basically means
4853 that a face containing all the attributes in ATTRS, when merged
4854 with the default face for display, can be represented in a way that's
4856 \(1) different in appearance than the default face, and
4857 \(2) `close in spirit' to what the attributes specify, if not exact.
4859 Point (2) implies that a `:weight black' attribute will be satisfied
4860 by any terminal that can display bold, and a `:foreground "yellow"' as
4861 long as the terminal can display a yellowish color, but `:slant italic'
4862 will _not_ be satisfied by the tty display code's automatic
4863 substitution of a `dim' face for italic. */
4866 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4867 struct face
*def_face
)
4870 Lisp_Object val
, fg
, bg
;
4871 XColor fg_tty_color
, fg_std_color
;
4872 XColor bg_tty_color
, bg_std_color
;
4873 unsigned test_caps
= 0;
4874 Lisp_Object
*def_attrs
= def_face
->lface
;
4876 /* First check some easy-to-check stuff; ttys support none of the
4877 following attributes, so we can just return false if any are requested
4878 (even if `nominal' values are specified, we should still return false,
4879 as that will be the same value that the default face uses). We
4880 consider :slant unsupportable on ttys, even though the face code
4881 actually `fakes' them using a dim attribute if possible. This is
4882 because the faked result is too different from what the face
4884 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4885 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4886 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4887 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4888 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4889 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4890 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4891 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4894 /* Test for terminal `capabilities' (non-color character attributes). */
4896 /* font weight (bold/dim) */
4897 val
= attrs
[LFACE_WEIGHT_INDEX
];
4898 if (!UNSPECIFIEDP (val
)
4899 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4901 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4905 if (def_weight
> 100)
4906 return 0; /* same as default */
4907 test_caps
= TTY_CAP_BOLD
;
4909 else if (weight
< 100)
4911 if (def_weight
< 100)
4912 return 0; /* same as default */
4913 test_caps
= TTY_CAP_DIM
;
4915 else if (def_weight
== 100)
4916 return 0; /* same as default */
4920 val
= attrs
[LFACE_SLANT_INDEX
];
4921 if (!UNSPECIFIEDP (val
)
4922 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4924 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4925 if (slant
== 100 || slant
== def_slant
)
4926 return 0; /* same as default */
4928 test_caps
|= TTY_CAP_ITALIC
;
4932 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4933 if (!UNSPECIFIEDP (val
))
4936 return 0; /* ttys can't use colored underlines */
4937 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4938 return 0; /* same as default */
4940 test_caps
|= TTY_CAP_UNDERLINE
;
4944 val
= attrs
[LFACE_INVERSE_INDEX
];
4945 if (!UNSPECIFIEDP (val
))
4947 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4948 return 0; /* same as default */
4950 test_caps
|= TTY_CAP_INVERSE
;
4954 /* Color testing. */
4956 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4957 we use them when calling `tty_capable_p' below, even if the face
4958 specifies no colors. */
4959 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4960 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4962 /* Check if foreground color is close enough. */
4963 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4966 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4968 if (face_attr_equal_p (fg
, def_fg
))
4969 return 0; /* same as default */
4970 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4971 return 0; /* not a valid color */
4972 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4973 > TTY_SAME_COLOR_THRESHOLD
)
4974 return 0; /* displayed color is too different */
4976 /* Make sure the color is really different than the default. */
4978 XColor def_fg_color
;
4979 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4980 && (color_distance (&fg_tty_color
, &def_fg_color
)
4981 <= TTY_SAME_COLOR_THRESHOLD
))
4986 /* Check if background color is close enough. */
4987 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4990 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4992 if (face_attr_equal_p (bg
, def_bg
))
4993 return 0; /* same as default */
4994 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4995 return 0; /* not a valid color */
4996 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4997 > TTY_SAME_COLOR_THRESHOLD
)
4998 return 0; /* displayed color is too different */
5000 /* Make sure the color is really different than the default. */
5002 XColor def_bg_color
;
5003 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5004 && (color_distance (&bg_tty_color
, &def_bg_color
)
5005 <= TTY_SAME_COLOR_THRESHOLD
))
5010 /* If both foreground and background are requested, see if the
5011 distance between them is OK. We just check to see if the distance
5012 between the tty's foreground and background is close enough to the
5013 distance between the standard foreground and background. */
5014 if (STRINGP (fg
) && STRINGP (bg
))
5017 = (color_distance (&fg_std_color
, &bg_std_color
)
5018 - color_distance (&fg_tty_color
, &bg_tty_color
));
5019 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5020 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5025 /* See if the capabilities we selected above are supported, with the
5027 if (test_caps
!= 0 &&
5028 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
5029 bg_tty_color
.pixel
))
5033 /* Hmmm, everything checks out, this terminal must support this face. */
5038 DEFUN ("display-supports-face-attributes-p",
5039 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5041 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5042 The optional argument DISPLAY can be a display name, a frame, or
5043 nil (meaning the selected frame's display).
5045 The definition of `supported' is somewhat heuristic, but basically means
5046 that a face containing all the attributes in ATTRIBUTES, when merged
5047 with the default face for display, can be represented in a way that's
5049 \(1) different in appearance than the default face, and
5050 \(2) `close in spirit' to what the attributes specify, if not exact.
5052 Point (2) implies that a `:weight black' attribute will be satisfied by
5053 any display that can display bold, and a `:foreground \"yellow\"' as long
5054 as it can display a yellowish color, but `:slant italic' will _not_ be
5055 satisfied by the tty display code's automatic substitution of a `dim'
5056 face for italic. */)
5057 (Lisp_Object attributes
, Lisp_Object display
)
5059 int supports
= 0, i
;
5062 struct face
*def_face
;
5063 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5065 if (noninteractive
|| !initialized
)
5066 /* We may not be able to access low-level face information in batch
5067 mode, or before being dumped, and this function is not going to
5068 be very useful in those cases anyway, so just give up. */
5072 frame
= selected_frame
;
5073 else if (FRAMEP (display
))
5077 /* Find any frame on DISPLAY. */
5078 Lisp_Object fl_tail
;
5081 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5083 frame
= XCAR (fl_tail
);
5084 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5085 XFRAME (frame
)->param_alist
)),
5091 CHECK_LIVE_FRAME (frame
);
5094 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5095 attrs
[i
] = Qunspecified
;
5096 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5098 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5099 if (def_face
== NULL
)
5101 if (! realize_basic_faces (f
))
5102 error ("Cannot realize default face");
5103 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5104 if (def_face
== NULL
)
5105 emacs_abort (); /* realize_basic_faces must have set it up */
5108 /* Dispatch to the appropriate handler. */
5109 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5110 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5111 #ifdef HAVE_WINDOW_SYSTEM
5113 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5116 return supports
? Qt
: Qnil
;
5120 /***********************************************************************
5122 ***********************************************************************/
5124 DEFUN ("internal-set-font-selection-order",
5125 Finternal_set_font_selection_order
,
5126 Sinternal_set_font_selection_order
, 1, 1, 0,
5127 doc
: /* Set font selection order for face font selection to ORDER.
5128 ORDER must be a list of length 4 containing the symbols `:width',
5129 `:height', `:weight', and `:slant'. Face attributes appearing
5130 first in ORDER are matched first, e.g. if `:height' appears before
5131 `:weight' in ORDER, font selection first tries to find a font with
5132 a suitable height, and then tries to match the font weight.
5138 int indices
[DIM (font_sort_order
)];
5141 memset (indices
, 0, sizeof indices
);
5145 CONSP (list
) && i
< DIM (indices
);
5146 list
= XCDR (list
), ++i
)
5148 Lisp_Object attr
= XCAR (list
);
5151 if (EQ (attr
, QCwidth
))
5153 else if (EQ (attr
, QCheight
))
5154 xlfd
= XLFD_POINT_SIZE
;
5155 else if (EQ (attr
, QCweight
))
5157 else if (EQ (attr
, QCslant
))
5162 if (indices
[i
] != 0)
5167 if (!NILP (list
) || i
!= DIM (indices
))
5168 signal_error ("Invalid font sort order", order
);
5169 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5170 if (indices
[i
] == 0)
5171 signal_error ("Invalid font sort order", order
);
5173 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5175 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5176 free_all_realized_faces (Qnil
);
5179 font_update_sort_order (font_sort_order
);
5185 DEFUN ("internal-set-alternative-font-family-alist",
5186 Finternal_set_alternative_font_family_alist
,
5187 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5188 doc
: /* Define alternative font families to try in face font selection.
5189 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5190 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5191 be found. Value is ALIST. */)
5194 Lisp_Object entry
, tail
, tail2
;
5197 alist
= Fcopy_sequence (alist
);
5198 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5200 entry
= XCAR (tail
);
5202 entry
= Fcopy_sequence (entry
);
5203 XSETCAR (tail
, entry
);
5204 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5205 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5208 Vface_alternative_font_family_alist
= alist
;
5209 free_all_realized_faces (Qnil
);
5214 DEFUN ("internal-set-alternative-font-registry-alist",
5215 Finternal_set_alternative_font_registry_alist
,
5216 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5217 doc
: /* Define alternative font registries to try in face font selection.
5218 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5219 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5220 be found. Value is ALIST. */)
5223 Lisp_Object entry
, tail
, tail2
;
5226 alist
= Fcopy_sequence (alist
);
5227 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5229 entry
= XCAR (tail
);
5231 entry
= Fcopy_sequence (entry
);
5232 XSETCAR (tail
, entry
);
5233 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5234 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5236 Vface_alternative_font_registry_alist
= alist
;
5237 free_all_realized_faces (Qnil
);
5242 #ifdef HAVE_WINDOW_SYSTEM
5244 /* Return the fontset id of the base fontset name or alias name given
5245 by the fontset attribute of ATTRS. Value is -1 if the fontset
5246 attribute of ATTRS doesn't name a fontset. */
5249 face_fontset (Lisp_Object
*attrs
)
5253 name
= attrs
[LFACE_FONTSET_INDEX
];
5254 if (!STRINGP (name
))
5256 return fs_query_fontset (name
, 0);
5259 #endif /* HAVE_WINDOW_SYSTEM */
5263 /***********************************************************************
5265 ***********************************************************************/
5267 /* Realize basic faces on frame F. Value is zero if frame parameters
5268 of F don't contain enough information needed to realize the default
5272 realize_basic_faces (struct frame
*f
)
5275 ptrdiff_t count
= SPECPDL_INDEX ();
5277 /* Block input here so that we won't be surprised by an X expose
5278 event, for instance, without having the faces set up. */
5280 specbind (Qscalable_fonts_allowed
, Qt
);
5282 if (realize_default_face (f
))
5284 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5285 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5286 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5287 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5288 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5289 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5290 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5291 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5292 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5293 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5294 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5296 /* Reflect changes in the `menu' face in menu bars. */
5297 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5299 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5300 #ifdef USE_X_TOOLKIT
5301 if (FRAME_WINDOW_P (f
))
5302 x_update_menu_appearance (f
);
5309 unbind_to (count
, Qnil
);
5315 /* Realize the default face on frame F. If the face is not fully
5316 specified, make it fully-specified. Attributes of the default face
5317 that are not explicitly specified are taken from frame parameters. */
5320 realize_default_face (struct frame
*f
)
5322 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5324 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5327 /* If the `default' face is not yet known, create it. */
5328 lface
= lface_from_face_name (f
, Qdefault
, 0);
5332 XSETFRAME (frame
, f
);
5333 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5336 #ifdef HAVE_WINDOW_SYSTEM
5337 if (FRAME_WINDOW_P (f
))
5339 Lisp_Object font_object
;
5341 XSETFONT (font_object
, FRAME_FONT (f
));
5342 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5343 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5344 f
->default_face_done_p
= 1;
5346 #endif /* HAVE_WINDOW_SYSTEM */
5348 if (!FRAME_WINDOW_P (f
))
5350 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5351 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5352 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5353 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5354 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5355 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5356 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5357 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5358 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5359 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5362 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5363 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5365 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5366 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5368 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5369 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5371 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5372 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5374 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5375 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5377 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5379 /* This function is called so early that colors are not yet
5380 set in the frame parameter list. */
5381 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5383 if (CONSP (color
) && STRINGP (XCDR (color
)))
5384 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5385 else if (FRAME_WINDOW_P (f
))
5387 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5388 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5393 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5395 /* This function is called so early that colors are not yet
5396 set in the frame parameter list. */
5397 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5398 if (CONSP (color
) && STRINGP (XCDR (color
)))
5399 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5400 else if (FRAME_WINDOW_P (f
))
5402 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5403 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5408 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5409 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5411 /* Realize the face; it must be fully-specified now. */
5412 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5413 check_lface (lface
);
5414 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5415 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5417 #ifdef HAVE_WINDOW_SYSTEM
5418 #ifdef HAVE_X_WINDOWS
5419 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5421 /* This can happen when making a frame on a display that does
5422 not support the default font. */
5426 /* Otherwise, the font specified for the frame was not
5427 acceptable as a font for the default face (perhaps because
5428 auto-scaled fonts are rejected), so we must adjust the frame
5430 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5432 #endif /* HAVE_X_WINDOWS */
5433 #endif /* HAVE_WINDOW_SYSTEM */
5438 /* Realize basic faces other than the default face in face cache C.
5439 SYMBOL is the face name, ID is the face id the realized face must
5440 have. The default face must have been realized already. */
5443 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5445 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5446 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5447 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5448 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5450 /* The default face must exist and be fully specified. */
5451 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5452 check_lface_attrs (attrs
);
5453 eassert (lface_fully_specified_p (attrs
));
5455 /* If SYMBOL isn't know as a face, create it. */
5459 XSETFRAME (frame
, f
);
5460 lface
= Finternal_make_lisp_face (symbol
, frame
);
5463 /* Merge SYMBOL's face with the default face. */
5464 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5465 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5467 /* Realize the face. */
5468 realize_face (c
, attrs
, id
);
5472 /* Realize the fully-specified face with attributes ATTRS in face
5473 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5474 non-negative, it is an ID of face to remove before caching the new
5475 face. Value is a pointer to the newly created realized face. */
5477 static struct face
*
5478 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5482 /* LFACE must be fully specified. */
5483 eassert (cache
!= NULL
);
5484 check_lface_attrs (attrs
);
5486 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5488 /* Remove the former face. */
5489 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5490 uncache_face (cache
, former_face
);
5491 free_realized_face (cache
->f
, former_face
);
5492 SET_FRAME_GARBAGED (cache
->f
);
5495 if (FRAME_WINDOW_P (cache
->f
))
5496 face
= realize_x_face (cache
, attrs
);
5497 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5498 face
= realize_tty_face (cache
, attrs
);
5499 else if (FRAME_INITIAL_P (cache
->f
))
5501 /* Create a dummy face. */
5502 face
= make_realized_face (attrs
);
5507 /* Insert the new face. */
5508 cache_face (cache
, face
, lface_hash (attrs
));
5513 #ifdef HAVE_WINDOW_SYSTEM
5514 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5515 same attributes as BASE_FACE except for the font on frame F.
5516 FONT-OBJECT may be nil, in which case, realized a face of
5519 static struct face
*
5520 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5521 struct face
*base_face
)
5523 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5526 face
= xmalloc (sizeof *face
);
5531 = (! NILP (font_object
)
5532 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5533 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5535 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5536 face
->colors_copied_bitwise_p
= 1;
5537 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5540 cache_face (cache
, face
, face
->hash
);
5544 #endif /* HAVE_WINDOW_SYSTEM */
5547 /* Realize the fully-specified face with attributes ATTRS in face
5548 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5549 the new face doesn't share font with the default face, a fontname
5550 is allocated from the heap and set in `font_name' of the new face,
5551 but it is not yet loaded here. Value is a pointer to the newly
5552 created realized face. */
5554 static struct face
*
5555 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5557 struct face
*face
= NULL
;
5558 #ifdef HAVE_WINDOW_SYSTEM
5559 struct face
*default_face
;
5561 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5563 eassert (FRAME_WINDOW_P (cache
->f
));
5565 /* Allocate a new realized face. */
5566 face
= make_realized_face (attrs
);
5567 face
->ascii_face
= face
;
5571 /* Determine the font to use. Most of the time, the font will be
5572 the same as the font of the default face, so try that first. */
5573 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5575 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5577 face
->font
= default_face
->font
;
5579 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5583 /* If the face attribute ATTRS specifies a fontset, use it as
5584 the base of a new realized fontset. Otherwise, use the same
5585 base fontset as of the default face. The base determines
5586 registry and encoding of a font. It may also determine
5587 foundry and family. The other fields of font name pattern
5588 are constructed from ATTRS. */
5589 int fontset
= face_fontset (attrs
);
5591 /* If we are realizing the default face, ATTRS should specify a
5592 fontset. In other words, if FONTSET is -1, we are not
5593 realizing the default face, thus the default face should have
5594 already been realized. */
5598 fontset
= default_face
->fontset
;
5602 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5603 attrs
[LFACE_FONT_INDEX
]
5604 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5605 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5607 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5608 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5618 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5619 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5620 face
->overstrike
= 1;
5622 /* Load colors, and set remaining attributes. */
5624 load_face_colors (f
, face
, attrs
);
5627 box
= attrs
[LFACE_BOX_INDEX
];
5630 /* A simple box of line width 1 drawn in color given by
5632 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5634 face
->box
= FACE_SIMPLE_BOX
;
5635 face
->box_line_width
= 1;
5637 else if (INTEGERP (box
))
5639 /* Simple box of specified line width in foreground color of the
5641 eassert (XINT (box
) != 0);
5642 face
->box
= FACE_SIMPLE_BOX
;
5643 face
->box_line_width
= XINT (box
);
5644 face
->box_color
= face
->foreground
;
5645 face
->box_color_defaulted_p
= 1;
5647 else if (CONSP (box
))
5649 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5650 being one of `raised' or `sunken'. */
5651 face
->box
= FACE_SIMPLE_BOX
;
5652 face
->box_color
= face
->foreground
;
5653 face
->box_color_defaulted_p
= 1;
5654 face
->box_line_width
= 1;
5658 Lisp_Object keyword
, value
;
5660 keyword
= XCAR (box
);
5668 if (EQ (keyword
, QCline_width
))
5670 if (INTEGERP (value
) && XINT (value
) != 0)
5671 face
->box_line_width
= XINT (value
);
5673 else if (EQ (keyword
, QCcolor
))
5675 if (STRINGP (value
))
5677 face
->box_color
= load_color (f
, face
, value
,
5679 face
->use_box_color_for_shadows_p
= 1;
5682 else if (EQ (keyword
, QCstyle
))
5684 if (EQ (value
, Qreleased_button
))
5685 face
->box
= FACE_RAISED_BOX
;
5686 else if (EQ (value
, Qpressed_button
))
5687 face
->box
= FACE_SUNKEN_BOX
;
5692 /* Text underline, overline, strike-through. */
5694 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5695 if (EQ (underline
, Qt
))
5697 /* Use default color (same as foreground color). */
5698 face
->underline_p
= 1;
5699 face
->underline_type
= FACE_UNDER_LINE
;
5700 face
->underline_defaulted_p
= 1;
5701 face
->underline_color
= 0;
5703 else if (STRINGP (underline
))
5705 /* Use specified color. */
5706 face
->underline_p
= 1;
5707 face
->underline_type
= FACE_UNDER_LINE
;
5708 face
->underline_defaulted_p
= 0;
5709 face
->underline_color
5710 = load_color (f
, face
, underline
,
5711 LFACE_UNDERLINE_INDEX
);
5713 else if (NILP (underline
))
5715 face
->underline_p
= 0;
5716 face
->underline_defaulted_p
= 0;
5717 face
->underline_color
= 0;
5719 else if (CONSP (underline
))
5721 /* `(:color COLOR :style STYLE)'.
5722 STYLE being one of `line' or `wave'. */
5723 face
->underline_p
= 1;
5724 face
->underline_color
= 0;
5725 face
->underline_defaulted_p
= 1;
5726 face
->underline_type
= FACE_UNDER_LINE
;
5728 while (CONSP (underline
))
5730 Lisp_Object keyword
, value
;
5732 keyword
= XCAR (underline
);
5733 underline
= XCDR (underline
);
5735 if (!CONSP (underline
))
5737 value
= XCAR (underline
);
5738 underline
= XCDR (underline
);
5740 if (EQ (keyword
, QCcolor
))
5742 if (EQ (value
, Qforeground_color
))
5744 face
->underline_defaulted_p
= 1;
5745 face
->underline_color
= 0;
5747 else if (STRINGP (value
))
5749 face
->underline_defaulted_p
= 0;
5750 face
->underline_color
= load_color (f
, face
, value
,
5751 LFACE_UNDERLINE_INDEX
);
5754 else if (EQ (keyword
, QCstyle
))
5756 if (EQ (value
, Qline
))
5757 face
->underline_type
= FACE_UNDER_LINE
;
5758 else if (EQ (value
, Qwave
))
5759 face
->underline_type
= FACE_UNDER_WAVE
;
5764 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5765 if (STRINGP (overline
))
5767 face
->overline_color
5768 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5769 LFACE_OVERLINE_INDEX
);
5770 face
->overline_p
= 1;
5772 else if (EQ (overline
, Qt
))
5774 face
->overline_color
= face
->foreground
;
5775 face
->overline_color_defaulted_p
= 1;
5776 face
->overline_p
= 1;
5779 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5780 if (STRINGP (strike_through
))
5782 face
->strike_through_color
5783 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5784 LFACE_STRIKE_THROUGH_INDEX
);
5785 face
->strike_through_p
= 1;
5787 else if (EQ (strike_through
, Qt
))
5789 face
->strike_through_color
= face
->foreground
;
5790 face
->strike_through_color_defaulted_p
= 1;
5791 face
->strike_through_p
= 1;
5794 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5795 if (!NILP (stipple
))
5796 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5797 #endif /* HAVE_WINDOW_SYSTEM */
5803 /* Map a specified color of face FACE on frame F to a tty color index.
5804 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5805 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5806 default foreground/background colors. */
5809 map_tty_color (struct frame
*f
, struct face
*face
,
5810 enum lface_attribute_index idx
, int *defaulted
)
5812 Lisp_Object frame
, color
, def
;
5813 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5814 unsigned long default_pixel
=
5815 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5816 unsigned long pixel
= default_pixel
;
5818 unsigned long default_other_pixel
=
5819 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5822 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5824 XSETFRAME (frame
, f
);
5825 color
= face
->lface
[idx
];
5829 && CONSP (Vtty_defined_color_alist
)
5830 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5833 /* Associations in tty-defined-color-alist are of the form
5834 (NAME INDEX R G B). We need the INDEX part. */
5835 pixel
= XINT (XCAR (XCDR (def
)));
5838 if (pixel
== default_pixel
&& STRINGP (color
))
5840 pixel
= load_color (f
, face
, color
, idx
);
5843 /* If the foreground of the default face is the default color,
5844 use the foreground color defined by the frame. */
5845 if (FRAME_MSDOS_P (f
))
5847 if (pixel
== default_pixel
5848 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5851 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5853 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5854 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5857 else if (pixel
== default_other_pixel
)
5860 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5862 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5863 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5871 face
->foreground
= pixel
;
5873 face
->background
= pixel
;
5877 /* Realize the fully-specified face with attributes ATTRS in face
5878 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5879 Value is a pointer to the newly created realized face. */
5881 static struct face
*
5882 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5886 int face_colors_defaulted
= 0;
5887 struct frame
*f
= cache
->f
;
5889 /* Frame must be a termcap frame. */
5890 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5892 /* Allocate a new realized face. */
5893 face
= make_realized_face (attrs
);
5895 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5898 /* Map face attributes to TTY appearances. */
5899 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5900 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5902 face
->tty_bold_p
= 1;
5904 face
->tty_italic_p
= 1;
5905 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5906 face
->tty_underline_p
= 1;
5907 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5908 face
->tty_reverse_p
= 1;
5910 /* Map color names to color indices. */
5911 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5912 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5914 /* Swap colors if face is inverse-video. If the colors are taken
5915 from the frame colors, they are already inverted, since the
5916 frame-creation function calls x-handle-reverse-video. */
5917 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5919 unsigned long tem
= face
->foreground
;
5920 face
->foreground
= face
->background
;
5921 face
->background
= tem
;
5924 if (tty_suppress_bold_inverse_default_colors_p
5926 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5927 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5928 face
->tty_bold_p
= 0;
5934 DEFUN ("tty-suppress-bold-inverse-default-colors",
5935 Ftty_suppress_bold_inverse_default_colors
,
5936 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5937 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5938 SUPPRESS non-nil means suppress it.
5939 This affects bold faces on TTYs whose foreground is the default background
5940 color of the display and whose background is the default foreground color.
5941 For such faces, the bold face attribute is ignored if this variable
5943 (Lisp_Object suppress
)
5945 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5946 ++face_change_count
;
5952 /***********************************************************************
5954 ***********************************************************************/
5956 /* Return the ID of the face to use to display character CH with face
5957 property PROP on frame F in current_buffer. */
5960 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5964 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5969 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5970 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5974 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5975 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5976 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5977 merge_face_ref (f
, prop
, attrs
, 1, 0);
5978 face_id
= lookup_face (f
, attrs
);
5984 /* Return the face ID associated with buffer position POS for
5985 displaying ASCII characters. Return in *ENDPTR the position at
5986 which a different face is needed, as far as text properties and
5987 overlays are concerned. W is a window displaying current_buffer.
5989 REGION_BEG, REGION_END delimit the region, so it can be
5992 LIMIT is a position not to scan beyond. That is to limit the time
5993 this function can take.
5995 If MOUSE is non-zero, use the character's mouse-face, not its face.
5997 BASE_FACE_ID, if non-negative, specifies a base face id to use
5998 instead of DEFAULT_FACE_ID.
6000 The face returned is suitable for displaying ASCII characters. */
6003 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
6004 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6005 ptrdiff_t *endptr
, ptrdiff_t limit
,
6006 int mouse
, int base_face_id
)
6008 struct frame
*f
= XFRAME (w
->frame
);
6009 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6010 Lisp_Object prop
, position
;
6011 ptrdiff_t i
, noverlays
;
6012 Lisp_Object
*overlay_vec
;
6014 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6015 Lisp_Object limit1
, end
;
6016 struct face
*default_face
;
6018 /* W must display the current buffer. We could write this function
6019 to use the frame and buffer of W, but right now it doesn't. */
6020 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6022 XSETFASTINT (position
, pos
);
6025 if (pos
< region_beg
&& region_beg
< endpos
)
6026 endpos
= region_beg
;
6028 /* Get the `face' or `mouse_face' text property at POS, and
6029 determine the next position at which the property changes. */
6030 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6031 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6032 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6034 endpos
= XINT (end
);
6036 /* Look at properties from overlays. */
6038 ptrdiff_t next_overlay
;
6040 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6041 if (next_overlay
< endpos
)
6042 endpos
= next_overlay
;
6050 if (base_face_id
>= 0)
6051 face_id
= base_face_id
;
6052 else if (NILP (Vface_remapping_alist
))
6053 face_id
= DEFAULT_FACE_ID
;
6055 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
6057 default_face
= FACE_FROM_ID (f
, face_id
);
6060 /* Optimize common cases where we can use the default face. */
6063 && !(pos
>= region_beg
&& pos
< region_end
))
6064 return default_face
->id
;
6066 /* Begin with attributes from the default face. */
6067 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6069 /* Merge in attributes specified via text properties. */
6071 merge_face_ref (f
, prop
, attrs
, 1, 0);
6073 /* Now merge the overlay data. */
6074 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6075 for (i
= 0; i
< noverlays
; i
++)
6080 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6082 merge_face_ref (f
, prop
, attrs
, 1, 0);
6084 oend
= OVERLAY_END (overlay_vec
[i
]);
6085 oendpos
= OVERLAY_POSITION (oend
);
6086 if (oendpos
< endpos
)
6090 /* If in the region, merge in the region face. */
6091 if (pos
>= region_beg
&& pos
< region_end
)
6093 merge_named_face (f
, Qregion
, attrs
, 0);
6095 if (region_end
< endpos
)
6096 endpos
= region_end
;
6101 /* Look up a realized face with the given face attributes,
6102 or realize a new one for ASCII characters. */
6103 return lookup_face (f
, attrs
);
6106 /* Return the face ID at buffer position POS for displaying ASCII
6107 characters associated with overlay strings for overlay OVERLAY.
6109 Like face_at_buffer_position except for OVERLAY. Currently it
6110 simply disregards the `face' properties of all overlays. */
6113 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6114 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6115 ptrdiff_t *endptr
, ptrdiff_t limit
,
6116 int mouse
, Lisp_Object overlay
)
6118 struct frame
*f
= XFRAME (w
->frame
);
6119 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6120 Lisp_Object prop
, position
;
6122 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6123 Lisp_Object limit1
, end
;
6124 struct face
*default_face
;
6126 /* W must display the current buffer. We could write this function
6127 to use the frame and buffer of W, but right now it doesn't. */
6128 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6130 XSETFASTINT (position
, pos
);
6133 if (pos
< region_beg
&& region_beg
< endpos
)
6134 endpos
= region_beg
;
6136 /* Get the `face' or `mouse_face' text property at POS, and
6137 determine the next position at which the property changes. */
6138 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6139 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6140 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6142 endpos
= XINT (end
);
6146 /* Optimize common case where we can use the default face. */
6148 && !(pos
>= region_beg
&& pos
< region_end
)
6149 && NILP (Vface_remapping_alist
))
6150 return DEFAULT_FACE_ID
;
6152 /* Begin with attributes from the default face. */
6153 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6154 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6156 /* Merge in attributes specified via text properties. */
6158 merge_face_ref (f
, prop
, attrs
, 1, 0);
6160 /* If in the region, merge in the region face. */
6161 if (pos
>= region_beg
&& pos
< region_end
)
6163 merge_named_face (f
, Qregion
, attrs
, 0);
6165 if (region_end
< endpos
)
6166 endpos
= region_end
;
6171 /* Look up a realized face with the given face attributes,
6172 or realize a new one for ASCII characters. */
6173 return lookup_face (f
, attrs
);
6177 /* Compute the face at character position POS in Lisp string STRING on
6178 window W, for ASCII characters.
6180 If STRING is an overlay string, it comes from position BUFPOS in
6181 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6182 not an overlay string. W must display the current buffer.
6183 REGION_BEG and REGION_END give the start and end positions of the
6184 region; both are -1 if no region is visible.
6186 BASE_FACE_ID is the id of a face to merge with. For strings coming
6187 from overlays or the `display' property it is the face at BUFPOS.
6189 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6191 Set *ENDPTR to the next position where to check for faces in
6192 STRING; -1 if the face is constant from POS to the end of the
6195 Value is the id of the face to use. The face returned is suitable
6196 for displaying ASCII characters. */
6199 face_at_string_position (struct window
*w
, Lisp_Object string
,
6200 ptrdiff_t pos
, ptrdiff_t bufpos
,
6201 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6202 ptrdiff_t *endptr
, enum face_id base_face_id
,
6205 Lisp_Object prop
, position
, end
, limit
;
6206 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6207 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6208 struct face
*base_face
;
6209 int multibyte_p
= STRING_MULTIBYTE (string
);
6210 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6212 /* Get the value of the face property at the current position within
6213 STRING. Value is nil if there is no face property. */
6214 XSETFASTINT (position
, pos
);
6215 prop
= Fget_text_property (position
, prop_name
, string
);
6217 /* Get the next position at which to check for faces. Value of end
6218 is nil if face is constant all the way to the end of the string.
6219 Otherwise it is a string position where to check faces next.
6220 Limit is the maximum position up to which to check for property
6221 changes in Fnext_single_property_change. Strings are usually
6222 short, so set the limit to the end of the string. */
6223 XSETFASTINT (limit
, SCHARS (string
));
6224 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6226 *endptr
= XFASTINT (end
);
6230 base_face
= FACE_FROM_ID (f
, base_face_id
);
6231 eassert (base_face
);
6233 /* Optimize the default case that there is no face property and we
6234 are not in the region. */
6236 && (base_face_id
!= DEFAULT_FACE_ID
6237 /* BUFPOS <= 0 means STRING is not an overlay string, so
6238 that the region doesn't have to be taken into account. */
6240 || bufpos
< region_beg
6241 || bufpos
>= region_end
)
6243 /* We can't realize faces for different charsets differently
6244 if we don't have fonts, so we can stop here if not working
6245 on a window-system frame. */
6246 || !FRAME_WINDOW_P (f
)
6247 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6248 return base_face
->id
;
6250 /* Begin with attributes from the base face. */
6251 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6253 /* Merge in attributes specified via text properties. */
6255 merge_face_ref (f
, prop
, attrs
, 1, 0);
6257 /* If in the region, merge in the region face. */
6259 && bufpos
>= region_beg
6260 && bufpos
< region_end
)
6261 merge_named_face (f
, Qregion
, attrs
, 0);
6263 /* Look up a realized face with the given face attributes,
6264 or realize a new one for ASCII characters. */
6265 return lookup_face (f
, attrs
);
6269 /* Merge a face into a realized face.
6271 F is frame where faces are (to be) realized.
6273 FACE_NAME is named face to merge.
6275 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6277 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6279 BASE_FACE_ID is realized face to merge into.
6285 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6288 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6289 struct face
*base_face
;
6291 base_face
= FACE_FROM_ID (f
, base_face_id
);
6293 return base_face_id
;
6295 if (EQ (face_name
, Qt
))
6297 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6298 return base_face_id
;
6299 face_name
= lface_id_to_name
[face_id
];
6300 /* When called during make-frame, lookup_derived_face may fail
6301 if the faces are uninitialized. Don't signal an error. */
6302 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6303 return (face_id
>= 0 ? face_id
: base_face_id
);
6306 /* Begin with attributes from the base face. */
6307 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6309 if (!NILP (face_name
))
6311 if (!merge_named_face (f
, face_name
, attrs
, 0))
6312 return base_face_id
;
6318 return base_face_id
;
6319 face
= FACE_FROM_ID (f
, face_id
);
6321 return base_face_id
;
6322 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6325 /* Look up a realized face with the given face attributes,
6326 or realize a new one for ASCII characters. */
6327 return lookup_face (f
, attrs
);
6332 #ifndef HAVE_X_WINDOWS
6333 DEFUN ("x-load-color-file", Fx_load_color_file
,
6334 Sx_load_color_file
, 1, 1, 0,
6335 doc
: /* Create an alist of color entries from an external file.
6337 The file should define one named RGB color per line like so:
6339 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6340 (Lisp_Object filename
)
6343 Lisp_Object cmap
= Qnil
;
6344 Lisp_Object abspath
;
6346 CHECK_STRING (filename
);
6347 abspath
= Fexpand_file_name (filename
, Qnil
);
6349 fp
= fopen (SSDATA (abspath
), "rt");
6353 int red
, green
, blue
;
6358 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6359 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6361 char *name
= buf
+ num
;
6362 num
= strlen (name
) - 1;
6363 if (num
>= 0 && name
[num
] == '\n')
6365 cmap
= Fcons (Fcons (build_string (name
),
6367 make_number (RGB (red
, green
, blue
))),
6369 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6384 /***********************************************************************
6386 ***********************************************************************/
6390 /* Print the contents of the realized face FACE to stderr. */
6393 dump_realized_face (struct face
*face
)
6395 fprintf (stderr
, "ID: %d\n", face
->id
);
6396 #ifdef HAVE_X_WINDOWS
6397 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6399 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6401 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6402 fprintf (stderr
, "background: 0x%lx (%s)\n",
6404 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6406 fprintf (stderr
, "font_name: %s (%s)\n",
6407 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6408 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6409 #ifdef HAVE_X_WINDOWS
6410 fprintf (stderr
, "font = %p\n", face
->font
);
6412 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6413 fprintf (stderr
, "underline: %d (%s)\n",
6415 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6416 fprintf (stderr
, "hash: %d\n", face
->hash
);
6420 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6427 fprintf (stderr
, "font selection order: ");
6428 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6429 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6430 fprintf (stderr
, "\n");
6432 fprintf (stderr
, "alternative fonts: ");
6433 debug_print (Vface_alternative_font_family_alist
);
6434 fprintf (stderr
, "\n");
6436 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6437 Fdump_face (make_number (i
));
6443 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6445 error ("Not a valid face");
6446 dump_realized_face (face
);
6453 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6454 0, 0, 0, doc
: /* */)
6457 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6458 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6459 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6463 #endif /* GLYPH_DEBUG */
6467 /***********************************************************************
6469 ***********************************************************************/
6472 syms_of_xfaces (void)
6474 DEFSYM (Qface
, "face");
6475 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6476 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6477 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6479 /* Lisp face attribute keywords. */
6480 DEFSYM (QCfamily
, ":family");
6481 DEFSYM (QCheight
, ":height");
6482 DEFSYM (QCweight
, ":weight");
6483 DEFSYM (QCslant
, ":slant");
6484 DEFSYM (QCunderline
, ":underline");
6485 DEFSYM (QCinverse_video
, ":inverse-video");
6486 DEFSYM (QCreverse_video
, ":reverse-video");
6487 DEFSYM (QCforeground
, ":foreground");
6488 DEFSYM (QCbackground
, ":background");
6489 DEFSYM (QCstipple
, ":stipple");
6490 DEFSYM (QCwidth
, ":width");
6491 DEFSYM (QCfont
, ":font");
6492 DEFSYM (QCfontset
, ":fontset");
6493 DEFSYM (QCbold
, ":bold");
6494 DEFSYM (QCitalic
, ":italic");
6495 DEFSYM (QCoverline
, ":overline");
6496 DEFSYM (QCstrike_through
, ":strike-through");
6497 DEFSYM (QCbox
, ":box");
6498 DEFSYM (QCinherit
, ":inherit");
6500 /* Symbols used for Lisp face attribute values. */
6501 DEFSYM (QCcolor
, ":color");
6502 DEFSYM (QCline_width
, ":line-width");
6503 DEFSYM (QCstyle
, ":style");
6504 DEFSYM (Qline
, "line");
6505 DEFSYM (Qwave
, "wave");
6506 DEFSYM (Qreleased_button
, "released-button");
6507 DEFSYM (Qpressed_button
, "pressed-button");
6508 DEFSYM (Qnormal
, "normal");
6509 DEFSYM (Qultra_light
, "ultra-light");
6510 DEFSYM (Qextra_light
, "extra-light");
6511 DEFSYM (Qlight
, "light");
6512 DEFSYM (Qsemi_light
, "semi-light");
6513 DEFSYM (Qsemi_bold
, "semi-bold");
6514 DEFSYM (Qbold
, "bold");
6515 DEFSYM (Qextra_bold
, "extra-bold");
6516 DEFSYM (Qultra_bold
, "ultra-bold");
6517 DEFSYM (Qoblique
, "oblique");
6518 DEFSYM (Qitalic
, "italic");
6519 DEFSYM (Qreverse_oblique
, "reverse-oblique");
6520 DEFSYM (Qreverse_italic
, "reverse-italic");
6521 DEFSYM (Qultra_condensed
, "ultra-condensed");
6522 DEFSYM (Qextra_condensed
, "extra-condensed");
6523 DEFSYM (Qcondensed
, "condensed");
6524 DEFSYM (Qsemi_condensed
, "semi-condensed");
6525 DEFSYM (Qsemi_expanded
, "semi-expanded");
6526 DEFSYM (Qexpanded
, "expanded");
6527 DEFSYM (Qextra_expanded
, "extra-expanded");
6528 DEFSYM (Qultra_expanded
, "ultra-expanded");
6529 DEFSYM (Qbackground_color
, "background-color");
6530 DEFSYM (Qforeground_color
, "foreground-color");
6531 DEFSYM (Qunspecified
, "unspecified");
6532 DEFSYM (QCignore_defface
, ":ignore-defface");
6534 DEFSYM (Qface_alias
, "face-alias");
6535 DEFSYM (Qdefault
, "default");
6536 DEFSYM (Qtool_bar
, "tool-bar");
6537 DEFSYM (Qregion
, "region");
6538 DEFSYM (Qfringe
, "fringe");
6539 DEFSYM (Qheader_line
, "header-line");
6540 DEFSYM (Qscroll_bar
, "scroll-bar");
6541 DEFSYM (Qmenu
, "menu");
6542 DEFSYM (Qcursor
, "cursor");
6543 DEFSYM (Qborder
, "border");
6544 DEFSYM (Qmouse
, "mouse");
6545 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6546 DEFSYM (Qvertical_border
, "vertical-border");
6547 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6548 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6549 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6550 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6551 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6553 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6554 staticpro (&Vparam_value_alist
);
6555 Vface_alternative_font_family_alist
= Qnil
;
6556 staticpro (&Vface_alternative_font_family_alist
);
6557 Vface_alternative_font_registry_alist
= Qnil
;
6558 staticpro (&Vface_alternative_font_registry_alist
);
6560 defsubr (&Sinternal_make_lisp_face
);
6561 defsubr (&Sinternal_lisp_face_p
);
6562 defsubr (&Sinternal_set_lisp_face_attribute
);
6563 #ifdef HAVE_WINDOW_SYSTEM
6564 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6566 defsubr (&Scolor_gray_p
);
6567 defsubr (&Scolor_supported_p
);
6568 #ifndef HAVE_X_WINDOWS
6569 defsubr (&Sx_load_color_file
);
6571 defsubr (&Sface_attribute_relative_p
);
6572 defsubr (&Smerge_face_attribute
);
6573 defsubr (&Sinternal_get_lisp_face_attribute
);
6574 defsubr (&Sinternal_lisp_face_attribute_values
);
6575 defsubr (&Sinternal_lisp_face_equal_p
);
6576 defsubr (&Sinternal_lisp_face_empty_p
);
6577 defsubr (&Sinternal_copy_lisp_face
);
6578 defsubr (&Sinternal_merge_in_global_face
);
6579 defsubr (&Sface_font
);
6580 defsubr (&Sframe_face_alist
);
6581 defsubr (&Sdisplay_supports_face_attributes_p
);
6582 defsubr (&Scolor_distance
);
6583 defsubr (&Sinternal_set_font_selection_order
);
6584 defsubr (&Sinternal_set_alternative_font_family_alist
);
6585 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6586 defsubr (&Sface_attributes_as_vector
);
6588 defsubr (&Sdump_face
);
6589 defsubr (&Sshow_face_resources
);
6590 #endif /* GLYPH_DEBUG */
6591 defsubr (&Sclear_face_cache
);
6592 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6594 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6595 defsubr (&Sdump_colors
);
6598 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6599 doc
: /* Limit for font matching.
6600 If an integer > 0, font matching functions won't load more than
6601 that number of fonts when searching for a matching font. */);
6602 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6604 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6605 doc
: /* List of global face definitions (for internal use only.) */);
6606 Vface_new_frame_defaults
= Qnil
;
6608 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6609 doc
: /* Default stipple pattern used on monochrome displays.
6610 This stipple pattern is used on monochrome displays
6611 instead of shades of gray for a face background color.
6612 See `set-face-stipple' for possible values for this variable. */);
6613 Vface_default_stipple
= build_pure_c_string ("gray3");
6615 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6616 doc
: /* An alist of defined terminal colors and their RGB values.
6617 See the docstring of `tty-color-alist' for the details. */);
6618 Vtty_defined_color_alist
= Qnil
;
6620 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6621 doc
: /* Allowed scalable fonts.
6622 A value of nil means don't allow any scalable fonts.
6623 A value of t means allow any scalable font.
6624 Otherwise, value must be a list of regular expressions. A font may be
6625 scaled if its name matches a regular expression in the list.
6626 Note that if value is nil, a scalable font might still be used, if no
6627 other font of the appropriate family and registry is available. */);
6628 Vscalable_fonts_allowed
= Qnil
;
6630 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6631 doc
: /* List of ignored fonts.
6632 Each element is a regular expression that matches names of fonts to
6634 Vface_ignored_fonts
= Qnil
;
6636 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6637 doc
: /* Alist of face remappings.
6638 Each element is of the form:
6640 (FACE . REPLACEMENT),
6642 which causes display of the face FACE to use REPLACEMENT instead.
6643 REPLACEMENT is a face specification, i.e. one of the following:
6646 (2) a property list of attribute/value pairs, or
6647 (3) a list in which each element has the form of (1) or (2).
6649 List values for REPLACEMENT are merged to form the final face
6650 specification, with earlier entries taking precedence, in the same as
6651 as in the `face' text property.
6653 Face-name remapping cycles are suppressed; recursive references use
6654 the underlying face instead of the remapped face. So a remapping of
6657 (FACE EXTRA-FACE... FACE)
6661 (FACE (FACE-ATTR VAL ...) FACE)
6663 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6664 existing definition of FACE. Note that this isn't necessary for the
6665 default face, since every face inherits from the default face.
6667 If this variable is made buffer-local, the face remapping takes effect
6668 only in that buffer. For instance, the mode my-mode could define a
6669 face `my-mode-default', and then in the mode setup function, do:
6671 (set (make-local-variable 'face-remapping-alist)
6672 '((default my-mode-default)))).
6674 Because Emacs normally only redraws screen areas when the underlying
6675 buffer contents change, you may need to call `redraw-display' after
6676 changing this variable for it to take effect. */);
6677 Vface_remapping_alist
= Qnil
;
6679 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6680 doc
: /* Alist of fonts vs the rescaling factors.
6681 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6682 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6683 RESCALE-RATIO is a floating point number to specify how much larger
6684 \(or smaller) font we should use. For instance, if a face requests
6685 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6686 Vface_font_rescale_alist
= Qnil
;
6688 #ifdef HAVE_WINDOW_SYSTEM
6689 defsubr (&Sbitmap_spec_p
);
6690 defsubr (&Sx_list_fonts
);
6691 defsubr (&Sinternal_face_x_get_resource
);
6692 defsubr (&Sx_family_fonts
);