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 */
231 /* Redefine X specifics to W32 equivalents to avoid cluttering the
232 code with #ifdef blocks. */
233 #undef FRAME_X_DISPLAY_INFO
234 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
235 #define x_display_info w32_display_info
236 #define check_x check_w32
237 #define GCGraphicsExposures 0
238 #endif /* WINDOWSNT */
242 #undef FRAME_X_DISPLAY_INFO
243 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
244 #define x_display_info ns_display_info
245 #define check_x check_ns
246 #define GCGraphicsExposures 0
250 #include "dispextern.h"
251 #include "blockinput.h"
253 #include "intervals.h"
254 #include "termchar.h"
257 #ifdef HAVE_WINDOW_SYSTEM
259 #endif /* HAVE_WINDOW_SYSTEM */
261 #ifdef HAVE_X_WINDOWS
263 /* Compensate for a bug in Xos.h on some systems, on which it requires
264 time.h. On some such systems, Xos.h tries to redefine struct
265 timeval and struct timezone if USG is #defined while it is
268 #ifdef XOS_NEEDS_TIME_H
274 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
276 #else /* not XOS_NEEDS_TIME_H */
278 #endif /* not XOS_NEEDS_TIME_H */
280 #endif /* HAVE_X_WINDOWS */
284 /* Number of pt per inch (from the TeXbook). */
286 #define PT_PER_INCH 72.27
288 /* Non-zero if face attribute ATTR is unspecified. */
290 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
292 /* Non-zero if face attribute ATTR is `ignore-defface'. */
294 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
296 /* Value is the number of elements of VECTOR. */
298 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
300 /* Size of hash table of realized faces in face caches (should be a
303 #define FACE_CACHE_BUCKETS_SIZE 1001
305 /* Keyword symbols used for face attribute names. */
307 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
308 static Lisp_Object QCunderline
;
309 static Lisp_Object QCinverse_video
, QCstipple
;
310 Lisp_Object QCforeground
, QCbackground
;
312 static Lisp_Object QCfont
, QCbold
, QCitalic
;
313 static Lisp_Object QCreverse_video
;
314 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
315 static Lisp_Object QCfontset
;
317 /* Symbols used for attribute values. */
321 static Lisp_Object Qline
, Qwave
;
322 static Lisp_Object Qultra_light
, Qextra_light
, Qlight
;
323 static Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
324 static Lisp_Object Qoblique
, Qreverse_oblique
, Qreverse_italic
;
326 static Lisp_Object Qultra_condensed
, Qextra_condensed
;
327 Lisp_Object Qcondensed
;
328 static Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qextra_expanded
;
329 Lisp_Object Qexpanded
;
330 static Lisp_Object Qultra_expanded
;
331 static Lisp_Object Qreleased_button
, Qpressed_button
;
332 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
333 Lisp_Object Qunspecified
; /* used in dosfns.c */
334 static Lisp_Object QCignore_defface
;
336 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
338 /* The name of the function to call when the background of the frame
339 has changed, frame_set_background_mode. */
341 static Lisp_Object Qframe_set_background_mode
;
343 /* Names of basic faces. */
345 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
346 static Lisp_Object Qregion
;
347 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
348 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
349 Lisp_Object Qmode_line_inactive
;
350 static Lisp_Object Qvertical_border
;
352 /* The symbol `face-alias'. A symbols having that property is an
353 alias for another face. Value of the property is the name of
356 static Lisp_Object Qface_alias
;
358 /* Alist of alternative font families. Each element is of the form
359 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
360 try FAMILY1, then FAMILY2, ... */
362 Lisp_Object Vface_alternative_font_family_alist
;
364 /* Alist of alternative font registries. Each element is of the form
365 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
366 loaded, try REGISTRY1, then REGISTRY2, ... */
368 Lisp_Object Vface_alternative_font_registry_alist
;
370 /* Allowed scalable fonts. A value of nil means don't allow any
371 scalable fonts. A value of t means allow the use of any scalable
372 font. Otherwise, value must be a list of regular expressions. A
373 font may be scaled if its name matches a regular expression in the
376 static Lisp_Object Qscalable_fonts_allowed
;
378 #define DEFAULT_FONT_LIST_LIMIT 100
380 /* The symbols `foreground-color' and `background-color' which can be
381 used as part of a `face' property. This is for compatibility with
384 Lisp_Object Qforeground_color
, Qbackground_color
;
386 /* The symbols `face' and `mouse-face' used as text properties. */
390 /* Property for basic faces which other faces cannot inherit. */
392 static Lisp_Object Qface_no_inherit
;
394 /* Error symbol for wrong_type_argument in load_pixmap. */
396 static Lisp_Object Qbitmap_spec_p
;
398 /* The next ID to assign to Lisp faces. */
400 static int next_lface_id
;
402 /* A vector mapping Lisp face Id's to face names. */
404 static Lisp_Object
*lface_id_to_name
;
405 static ptrdiff_t lface_id_to_name_size
;
407 /* TTY color-related functions (defined in tty-colors.el). */
409 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
411 /* The name of the function used to compute colors on TTYs. */
413 static Lisp_Object Qtty_color_alist
;
415 /* Counter for calls to clear_face_cache. If this counter reaches
416 CLEAR_FONT_TABLE_COUNT, and a frame has more than
417 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
419 static int clear_font_table_count
;
420 #define CLEAR_FONT_TABLE_COUNT 100
421 #define CLEAR_FONT_TABLE_NFONTS 10
423 /* Non-zero means face attributes have been changed since the last
424 redisplay. Used in redisplay_internal. */
426 int face_change_count
;
428 /* Non-zero means don't display bold text if a face's foreground
429 and background colors are the inverse of the default colors of the
430 display. This is a kluge to suppress `bold black' foreground text
431 which is hard to read on an LCD monitor. */
433 static int tty_suppress_bold_inverse_default_colors_p
;
435 /* A list of the form `((x . y))' used to avoid consing in
436 Finternal_set_lisp_face_attribute. */
438 static Lisp_Object Vparam_value_alist
;
440 /* The total number of colors currently allocated. */
443 static int ncolors_allocated
;
444 static int npixmaps_allocated
;
448 /* Non-zero means the definition of the `menu' face for new frames has
451 static int menu_face_changed_default
;
454 /* Function prototypes. */
457 struct named_merge_point
;
459 static void map_tty_color (struct frame
*, struct face
*,
460 enum lface_attribute_index
, int *);
461 static Lisp_Object
resolve_face_name (Lisp_Object
, int);
462 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
463 static int get_lface_attributes (struct frame
*, Lisp_Object
, Lisp_Object
*,
464 int, struct named_merge_point
*);
465 static ptrdiff_t load_pixmap (struct frame
*, Lisp_Object
,
466 unsigned *, unsigned *);
467 static struct frame
*frame_or_selected_frame (Lisp_Object
, int);
468 static void load_face_colors (struct frame
*, struct face
*, Lisp_Object
*);
469 static void free_face_colors (struct frame
*, struct face
*);
470 static int face_color_gray_p (struct frame
*, const char *);
471 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
473 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
475 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
476 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
477 static int realize_basic_faces (struct frame
*);
478 static int realize_default_face (struct frame
*);
479 static void realize_named_face (struct frame
*, Lisp_Object
, int);
480 static int lface_fully_specified_p (Lisp_Object
*);
481 static int lface_equal_p (Lisp_Object
*, Lisp_Object
*);
482 static unsigned hash_string_case_insensitive (Lisp_Object
);
483 static unsigned lface_hash (Lisp_Object
*);
484 static int lface_same_font_attributes_p (Lisp_Object
*, Lisp_Object
*);
485 static struct face_cache
*make_face_cache (struct frame
*);
486 static void clear_face_gcs (struct face_cache
*);
487 static void free_face_cache (struct face_cache
*);
488 static int face_fontset (Lisp_Object
*);
489 static void merge_face_vectors (struct frame
*, Lisp_Object
*, Lisp_Object
*,
490 struct named_merge_point
*);
491 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
492 int, struct named_merge_point
*);
493 static int set_lface_from_font (struct frame
*, Lisp_Object
, Lisp_Object
,
495 static Lisp_Object
lface_from_face_name (struct frame
*, Lisp_Object
, int);
496 static struct face
*make_realized_face (Lisp_Object
*);
497 static void cache_face (struct face_cache
*, struct face
*, unsigned);
498 static void uncache_face (struct face_cache
*, struct face
*);
500 #ifdef HAVE_WINDOW_SYSTEM
502 static GC
x_create_gc (struct frame
*, unsigned long, XGCValues
*);
503 static void x_free_gc (struct frame
*, GC
);
506 static void x_update_menu_appearance (struct frame
*);
508 extern void free_frame_menubar (struct frame
*);
509 #endif /* USE_X_TOOLKIT */
511 #endif /* HAVE_WINDOW_SYSTEM */
514 /***********************************************************************
516 ***********************************************************************/
518 #ifdef HAVE_X_WINDOWS
520 #ifdef DEBUG_X_COLORS
522 /* The following is a poor mans infrastructure for debugging X color
523 allocation problems on displays with PseudoColor-8. Some X servers
524 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
525 color reference counts completely so that they don't signal an
526 error when a color is freed whose reference count is already 0.
527 Other X servers do. To help me debug this, the following code
528 implements a simple reference counting schema of its own, for a
529 single display/screen. --gerd. */
531 /* Reference counts for pixel colors. */
533 int color_count
[256];
535 /* Register color PIXEL as allocated. */
538 register_color (unsigned long pixel
)
540 eassert (pixel
< 256);
541 ++color_count
[pixel
];
545 /* Register color PIXEL as deallocated. */
548 unregister_color (unsigned long pixel
)
550 eassert (pixel
< 256);
551 if (color_count
[pixel
] > 0)
552 --color_count
[pixel
];
558 /* Register N colors from PIXELS as deallocated. */
561 unregister_colors (unsigned long *pixels
, int n
)
564 for (i
= 0; i
< n
; ++i
)
565 unregister_color (pixels
[i
]);
569 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
570 doc
: /* Dump currently allocated colors to stderr. */)
575 fputc ('\n', stderr
);
577 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
580 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
583 fputc ('\n', stderr
);
585 fputc ('\t', stderr
);
589 fputc ('\n', stderr
);
593 #endif /* DEBUG_X_COLORS */
596 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
597 color values. Interrupt input must be blocked when this function
601 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
603 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
605 /* If display has an immutable color map, freeing colors is not
606 necessary and some servers don't allow it. So don't do it. */
607 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
609 #ifdef DEBUG_X_COLORS
610 unregister_colors (pixels
, npixels
);
612 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
620 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
621 color values. Interrupt input must be blocked when this function
625 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
626 long unsigned int *pixels
, int npixels
)
628 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
629 int class = dpyinfo
->visual
->class;
631 /* If display has an immutable color map, freeing colors is not
632 necessary and some servers don't allow it. So don't do it. */
633 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
635 #ifdef DEBUG_X_COLORS
636 unregister_colors (pixels
, npixels
);
638 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
641 #endif /* USE_X_TOOLKIT */
643 /* Create and return a GC for use on frame F. GC values and mask
644 are given by XGCV and MASK. */
647 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
651 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
658 /* Free GC which was used on frame F. */
661 x_free_gc (struct frame
*f
, GC gc
)
663 eassert (interrupt_input_blocked
);
664 IF_DEBUG (eassert (--ngcs
>= 0));
665 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
668 #endif /* HAVE_X_WINDOWS */
671 /* W32 emulation of GCs */
674 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
678 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
685 /* Free GC which was used on frame F. */
688 x_free_gc (struct frame
*f
, GC gc
)
690 IF_DEBUG (eassert (--ngcs
>= 0));
694 #endif /* WINDOWSNT */
697 /* NS emulation of GCs */
700 x_create_gc (struct frame
*f
,
704 GC gc
= xmalloc (sizeof *gc
);
705 memcpy (gc
, xgcv
, sizeof (XGCValues
));
710 x_free_gc (struct frame
*f
, GC gc
)
716 /* If FRAME is nil, return a pointer to the selected frame.
717 Otherwise, check that FRAME is a live frame, and return a pointer
718 to it. NPARAM is the parameter number of FRAME, for
719 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
720 Lisp function definitions. */
722 static inline struct frame
*
723 frame_or_selected_frame (Lisp_Object frame
, int nparam
)
726 frame
= selected_frame
;
728 CHECK_LIVE_FRAME (frame
);
729 return XFRAME (frame
);
733 /***********************************************************************
735 ***********************************************************************/
737 /* Initialize face cache and basic faces for frame F. */
740 init_frame_faces (struct frame
*f
)
742 /* Make a face cache, if F doesn't have one. */
743 if (FRAME_FACE_CACHE (f
) == NULL
)
744 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
746 #ifdef HAVE_WINDOW_SYSTEM
747 /* Make the image cache. */
748 if (FRAME_WINDOW_P (f
))
750 /* We initialize the image cache when creating the first frame
751 on a terminal, and not during terminal creation. This way,
752 `x-open-connection' on a tty won't create an image cache. */
753 if (FRAME_IMAGE_CACHE (f
) == NULL
)
754 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
755 ++FRAME_IMAGE_CACHE (f
)->refcount
;
757 #endif /* HAVE_WINDOW_SYSTEM */
759 /* Realize basic faces. Must have enough information in frame
760 parameters to realize basic faces at this point. */
761 #ifdef HAVE_X_WINDOWS
762 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
765 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
768 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
770 if (!realize_basic_faces (f
))
775 /* Free face cache of frame F. Called from delete_frame. */
778 free_frame_faces (struct frame
*f
)
780 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
784 free_face_cache (face_cache
);
785 FRAME_FACE_CACHE (f
) = NULL
;
788 #ifdef HAVE_WINDOW_SYSTEM
789 if (FRAME_WINDOW_P (f
))
791 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
794 --image_cache
->refcount
;
795 if (image_cache
->refcount
== 0)
796 free_image_cache (f
);
799 #endif /* HAVE_WINDOW_SYSTEM */
803 /* Clear face caches, and recompute basic faces for frame F. Call
804 this after changing frame parameters on which those faces depend,
805 or when realized faces have been freed due to changing attributes
809 recompute_basic_faces (struct frame
*f
)
811 if (FRAME_FACE_CACHE (f
))
813 clear_face_cache (0);
814 if (!realize_basic_faces (f
))
820 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
821 try to free unused fonts, too. */
824 clear_face_cache (int clear_fonts_p
)
826 #ifdef HAVE_WINDOW_SYSTEM
827 Lisp_Object tail
, frame
;
830 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
833 /* Not yet implemented. */
834 clear_font_cache (frame
);
837 /* From time to time see if we can unload some fonts. This also
838 frees all realized faces on all frames. Fonts needed by
839 faces will be loaded again when faces are realized again. */
840 clear_font_table_count
= 0;
842 FOR_EACH_FRAME (tail
, frame
)
844 struct frame
*f
= XFRAME (frame
);
845 if (FRAME_WINDOW_P (f
)
846 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
847 free_all_realized_faces (frame
);
852 /* Clear GCs of realized faces. */
853 FOR_EACH_FRAME (tail
, frame
)
855 struct frame
*f
= XFRAME (frame
);
856 if (FRAME_WINDOW_P (f
))
857 clear_face_gcs (FRAME_FACE_CACHE (f
));
859 clear_image_caches (Qnil
);
861 #endif /* HAVE_WINDOW_SYSTEM */
865 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
866 doc
: /* Clear face caches on all frames.
867 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
868 (Lisp_Object thoroughly
)
870 clear_face_cache (!NILP (thoroughly
));
872 ++windows_or_buffers_changed
;
877 /***********************************************************************
879 ***********************************************************************/
881 #ifdef HAVE_WINDOW_SYSTEM
883 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
884 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
885 A bitmap specification is either a string, a file name, or a list
886 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
887 HEIGHT is its height, and DATA is a string containing the bits of
888 the pixmap. Bits are stored row by row, each row occupies
889 \(WIDTH + 7)/8 bytes. */)
894 if (STRINGP (object
))
895 /* If OBJECT is a string, it's a file name. */
897 else if (CONSP (object
))
899 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
900 HEIGHT must be ints > 0, and DATA must be string large
901 enough to hold a bitmap of the specified size. */
902 Lisp_Object width
, height
, data
;
904 height
= width
= data
= Qnil
;
908 width
= XCAR (object
);
909 object
= XCDR (object
);
912 height
= XCAR (object
);
913 object
= XCDR (object
);
915 data
= XCAR (object
);
920 && RANGED_INTEGERP (1, width
, INT_MAX
)
921 && RANGED_INTEGERP (1, height
, INT_MAX
))
923 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
925 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
930 return pixmap_p
? Qt
: Qnil
;
934 /* Load a bitmap according to NAME (which is either a file name or a
935 pixmap spec) for use on frame F. Value is the bitmap_id (see
936 xfns.c). If NAME is nil, return with a bitmap id of zero. If
937 bitmap cannot be loaded, display a message saying so, and return
938 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
939 if these pointers are not null. */
942 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
,
950 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
955 /* Decode a bitmap spec into a bitmap. */
960 w
= XINT (Fcar (name
));
961 h
= XINT (Fcar (Fcdr (name
)));
962 bits
= Fcar (Fcdr (Fcdr (name
)));
964 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
969 /* It must be a string -- a file name. */
970 bitmap_id
= x_create_bitmap_from_file (f
, name
);
976 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
987 ++npixmaps_allocated
;
990 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
993 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
999 #endif /* HAVE_WINDOW_SYSTEM */
1003 /***********************************************************************
1005 ***********************************************************************/
1007 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1008 RGB_LIST should contain (at least) 3 lisp integers.
1009 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1012 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
1014 #define PARSE_RGB_LIST_FIELD(field) \
1015 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1017 color->field = XINT (XCAR (rgb_list)); \
1018 rgb_list = XCDR (rgb_list); \
1023 PARSE_RGB_LIST_FIELD (red
);
1024 PARSE_RGB_LIST_FIELD (green
);
1025 PARSE_RGB_LIST_FIELD (blue
);
1031 /* Lookup on frame F the color described by the lisp string COLOR.
1032 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1033 non-zero, then the `standard' definition of the same color is
1037 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
1040 Lisp_Object frame
, color_desc
;
1042 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1045 XSETFRAME (frame
, f
);
1047 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1048 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1052 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1055 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1057 rgb
= XCDR (XCDR (color_desc
));
1058 if (! parse_rgb_list (rgb
, tty_color
))
1061 /* Should we fill in STD_COLOR too? */
1064 /* Default STD_COLOR to the same as TTY_COLOR. */
1065 *std_color
= *tty_color
;
1067 /* Do a quick check to see if the returned descriptor is
1068 actually _exactly_ equal to COLOR, otherwise we have to
1069 lookup STD_COLOR separately. If it's impossible to lookup
1070 a standard color, we just give up and use TTY_COLOR. */
1071 if ((!STRINGP (XCAR (color_desc
))
1072 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1073 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1075 /* Look up STD_COLOR separately. */
1076 rgb
= call1 (Qtty_color_standard_values
, color
);
1077 if (! parse_rgb_list (rgb
, std_color
))
1084 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1085 /* We were called early during startup, and the colors are not
1086 yet set up in tty-defined-color-alist. Don't return a failure
1087 indication, since this produces the annoying "Unable to
1088 load color" messages in the *Messages* buffer. */
1091 /* tty-color-desc seems to have returned a bad value. */
1095 /* A version of defined_color for non-X frames. */
1098 tty_defined_color (struct frame
*f
, const char *color_name
,
1099 XColor
*color_def
, int alloc
)
1104 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1106 color_def
->blue
= 0;
1107 color_def
->green
= 0;
1110 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1112 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1114 if (strcmp (color_name
, "unspecified-fg") == 0)
1115 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1116 else if (strcmp (color_name
, "unspecified-bg") == 0)
1117 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1120 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1127 /* Decide if color named COLOR_NAME is valid for the display
1128 associated with the frame F; if so, return the rgb values in
1129 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1131 This does the right thing for any type of frame. */
1134 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
1137 if (!FRAME_WINDOW_P (f
))
1138 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1139 #ifdef HAVE_X_WINDOWS
1140 else if (FRAME_X_P (f
))
1141 return x_defined_color (f
, color_name
, color_def
, alloc
);
1144 else if (FRAME_W32_P (f
))
1145 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1148 else if (FRAME_NS_P (f
))
1149 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1156 /* Given the index IDX of a tty color on frame F, return its name, a
1160 tty_color_name (struct frame
*f
, int idx
)
1162 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1165 Lisp_Object coldesc
;
1167 XSETFRAME (frame
, f
);
1168 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1170 if (!NILP (coldesc
))
1171 return XCAR (coldesc
);
1174 /* We can have an MSDOG frame under -nw for a short window of
1175 opportunity before internal_terminal_init is called. DTRT. */
1176 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1177 return msdos_stdcolor_name (idx
);
1180 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1181 return build_string (unspecified_fg
);
1182 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1183 return build_string (unspecified_bg
);
1185 return Qunspecified
;
1189 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1192 The criterion implemented here is not a terribly sophisticated one. */
1195 face_color_gray_p (struct frame
*f
, const char *color_name
)
1200 if (defined_color (f
, color_name
, &color
, 0))
1201 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1202 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1204 ((eabs (color
.red
- color
.green
)
1205 < max (color
.red
, color
.green
) / 20)
1206 && (eabs (color
.green
- color
.blue
)
1207 < max (color
.green
, color
.blue
) / 20)
1208 && (eabs (color
.blue
- color
.red
)
1209 < max (color
.blue
, color
.red
) / 20)));
1217 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1218 BACKGROUND_P non-zero means the color will be used as background
1222 face_color_supported_p (struct frame
*f
, const char *color_name
,
1228 XSETFRAME (frame
, f
);
1230 #ifdef HAVE_WINDOW_SYSTEM
1232 ? (!NILP (Fxw_display_color_p (frame
))
1233 || xstrcasecmp (color_name
, "black") == 0
1234 || xstrcasecmp (color_name
, "white") == 0
1236 && face_color_gray_p (f
, color_name
))
1237 || (!NILP (Fx_display_grayscale_p (frame
))
1238 && face_color_gray_p (f
, color_name
)))
1241 tty_defined_color (f
, color_name
, ¬_used
, 0);
1245 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1246 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1247 FRAME specifies the frame and thus the display for interpreting COLOR.
1248 If FRAME is nil or omitted, use the selected frame. */)
1249 (Lisp_Object color
, Lisp_Object frame
)
1253 CHECK_STRING (color
);
1255 frame
= selected_frame
;
1257 CHECK_FRAME (frame
);
1259 return face_color_gray_p (f
, SSDATA (color
)) ? Qt
: Qnil
;
1263 DEFUN ("color-supported-p", Fcolor_supported_p
,
1264 Scolor_supported_p
, 1, 3, 0,
1265 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1266 BACKGROUND-P non-nil means COLOR is used as a background.
1267 Otherwise, this function tells whether it can be used as a foreground.
1268 If FRAME is nil or omitted, use the selected frame.
1269 COLOR must be a valid color name. */)
1270 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1274 CHECK_STRING (color
);
1276 frame
= selected_frame
;
1278 CHECK_FRAME (frame
);
1280 if (face_color_supported_p (f
, SSDATA (color
), !NILP (background_p
)))
1286 /* Load color with name NAME for use by face FACE on frame F.
1287 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1288 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1289 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1290 pixel color. If color cannot be loaded, display a message, and
1291 return the foreground, background or underline color of F, but
1292 record that fact in flags of the face so that we don't try to free
1296 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1297 enum lface_attribute_index target_index
)
1301 eassert (STRINGP (name
));
1302 eassert (target_index
== LFACE_FOREGROUND_INDEX
1303 || target_index
== LFACE_BACKGROUND_INDEX
1304 || target_index
== LFACE_UNDERLINE_INDEX
1305 || target_index
== LFACE_OVERLINE_INDEX
1306 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1307 || target_index
== LFACE_BOX_INDEX
);
1309 /* if the color map is full, defined_color will return a best match
1310 to the values in an existing cell. */
1311 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1313 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1315 switch (target_index
)
1317 case LFACE_FOREGROUND_INDEX
:
1318 face
->foreground_defaulted_p
= 1;
1319 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1322 case LFACE_BACKGROUND_INDEX
:
1323 face
->background_defaulted_p
= 1;
1324 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1327 case LFACE_UNDERLINE_INDEX
:
1328 face
->underline_defaulted_p
= 1;
1329 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1332 case LFACE_OVERLINE_INDEX
:
1333 face
->overline_color_defaulted_p
= 1;
1334 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1337 case LFACE_STRIKE_THROUGH_INDEX
:
1338 face
->strike_through_color_defaulted_p
= 1;
1339 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1342 case LFACE_BOX_INDEX
:
1343 face
->box_color_defaulted_p
= 1;
1344 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1353 ++ncolors_allocated
;
1360 #ifdef HAVE_WINDOW_SYSTEM
1362 /* Load colors for face FACE which is used on frame F. Colors are
1363 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1364 of ATTRS. If the background color specified is not supported on F,
1365 try to emulate gray colors with a stipple from Vface_default_stipple. */
1368 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1372 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1373 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1375 /* Swap colors if face is inverse-video. */
1376 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1384 /* Check for support for foreground, not for background because
1385 face_color_supported_p is smart enough to know that grays are
1386 "supported" as background because we are supposed to use stipple
1388 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1389 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1391 x_destroy_bitmap (f
, face
->stipple
);
1392 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1393 &face
->pixmap_w
, &face
->pixmap_h
);
1396 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1397 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1401 /* Free color PIXEL on frame F. */
1404 unload_color (struct frame
*f
, long unsigned int pixel
)
1406 #ifdef HAVE_X_WINDOWS
1410 x_free_colors (f
, &pixel
, 1);
1417 /* Free colors allocated for FACE. */
1420 free_face_colors (struct frame
*f
, struct face
*face
)
1422 /* PENDING(NS): need to do something here? */
1423 #ifdef HAVE_X_WINDOWS
1424 if (face
->colors_copied_bitwise_p
)
1429 if (!face
->foreground_defaulted_p
)
1431 x_free_colors (f
, &face
->foreground
, 1);
1432 IF_DEBUG (--ncolors_allocated
);
1435 if (!face
->background_defaulted_p
)
1437 x_free_colors (f
, &face
->background
, 1);
1438 IF_DEBUG (--ncolors_allocated
);
1441 if (face
->underline_p
1442 && !face
->underline_defaulted_p
)
1444 x_free_colors (f
, &face
->underline_color
, 1);
1445 IF_DEBUG (--ncolors_allocated
);
1448 if (face
->overline_p
1449 && !face
->overline_color_defaulted_p
)
1451 x_free_colors (f
, &face
->overline_color
, 1);
1452 IF_DEBUG (--ncolors_allocated
);
1455 if (face
->strike_through_p
1456 && !face
->strike_through_color_defaulted_p
)
1458 x_free_colors (f
, &face
->strike_through_color
, 1);
1459 IF_DEBUG (--ncolors_allocated
);
1462 if (face
->box
!= FACE_NO_BOX
1463 && !face
->box_color_defaulted_p
)
1465 x_free_colors (f
, &face
->box_color
, 1);
1466 IF_DEBUG (--ncolors_allocated
);
1470 #endif /* HAVE_X_WINDOWS */
1473 #endif /* HAVE_WINDOW_SYSTEM */
1477 /***********************************************************************
1479 ***********************************************************************/
1481 /* An enumerator for each field of an XLFD font name. */
1502 /* An enumerator for each possible slant value of a font. Taken from
1503 the XLFD specification. */
1511 XLFD_SLANT_REVERSE_ITALIC
,
1512 XLFD_SLANT_REVERSE_OBLIQUE
,
1516 /* Relative font weight according to XLFD documentation. */
1520 XLFD_WEIGHT_UNKNOWN
,
1521 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1522 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1523 XLFD_WEIGHT_LIGHT
, /* 30 */
1524 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1525 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1526 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1527 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1528 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1529 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1532 /* Relative proportionate width. */
1536 XLFD_SWIDTH_UNKNOWN
,
1537 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1538 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1539 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1540 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1541 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1542 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1543 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1544 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1545 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1548 /* Order by which font selection chooses fonts. The default values
1549 mean `first, find a best match for the font width, then for the
1550 font height, then for weight, then for slant.' This variable can be
1551 set via set-face-font-sort-order. */
1553 static int font_sort_order
[4];
1555 #ifdef HAVE_WINDOW_SYSTEM
1557 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1560 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1562 Lisp_Object
const *p1
= v1
;
1563 Lisp_Object
const *p2
= v2
;
1564 Lisp_Object font1
= *p1
;
1565 Lisp_Object font2
= *p2
;
1568 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1570 enum font_property_index idx
= font_props_for_sorting
[i
];
1571 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1574 if (idx
<= FONT_REGISTRY_INDEX
)
1577 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1579 result
= STRINGP (val2
) ? 1 : 0;
1583 if (INTEGERP (val1
))
1584 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1585 ? XINT (val1
) > XINT (val2
)
1588 result
= INTEGERP (val2
) ? 1 : 0;
1596 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1597 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1598 If FAMILY is omitted or nil, list all families.
1599 Otherwise, FAMILY must be a string, possibly containing wildcards
1601 If FRAME is omitted or nil, use the selected frame.
1602 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1603 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1604 FAMILY is the font family name. POINT-SIZE is the size of the
1605 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1606 width, weight and slant of the font. These symbols are the same as for
1607 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1608 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1609 giving the registry and encoding of the font.
1610 The result list is sorted according to the current setting of
1611 the face font sort order. */)
1612 (Lisp_Object family
, Lisp_Object frame
)
1614 Lisp_Object font_spec
, list
, *drivers
, vec
;
1615 ptrdiff_t i
, nfonts
;
1621 frame
= selected_frame
;
1622 CHECK_LIVE_FRAME (frame
);
1624 font_spec
= Ffont_spec (0, NULL
);
1627 CHECK_STRING (family
);
1628 font_parse_family_registry (family
, Qnil
, font_spec
);
1631 list
= font_list_entities (frame
, font_spec
);
1635 /* Sort the font entities. */
1636 for (i
= 0; i
< 4; i
++)
1637 switch (font_sort_order
[i
])
1640 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1641 case XLFD_POINT_SIZE
:
1642 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1644 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1646 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1648 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1649 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1650 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1651 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1653 ndrivers
= XINT (Flength (list
));
1654 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1655 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1656 drivers
[i
] = XCAR (list
);
1657 vec
= Fvconcat (ndrivers
, drivers
);
1658 nfonts
= ASIZE (vec
);
1660 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1661 compare_fonts_by_sort_order
);
1664 for (i
= nfonts
- 1; i
>= 0; --i
)
1666 Lisp_Object font
= AREF (vec
, i
);
1667 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1669 Lisp_Object spacing
;
1671 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1672 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1673 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1674 XFRAME (frame
)->resy
);
1675 ASET (v
, 2, make_number (point
));
1676 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1677 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1678 spacing
= Ffont_get (font
, QCspacing
);
1679 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1680 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1681 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1683 result
= Fcons (v
, result
);
1690 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1691 doc
: /* Return a list of the names of available fonts matching PATTERN.
1692 If optional arguments FACE and FRAME are specified, return only fonts
1693 the same size as FACE on FRAME.
1695 PATTERN should be a string containing a font name in the XLFD,
1696 Fontconfig, or GTK format. A font name given in the XLFD format may
1697 contain wildcard characters:
1698 the * character matches any substring, and
1699 the ? character matches any single character.
1700 PATTERN is case-insensitive.
1702 The return value is a list of strings, suitable as arguments to
1705 Fonts Emacs can't use may or may not be excluded
1706 even if they match PATTERN and FACE.
1707 The optional fourth argument MAXIMUM sets a limit on how many
1708 fonts to match. The first MAXIMUM fonts are reported.
1709 The optional fifth argument WIDTH, if specified, is a number of columns
1710 occupied by a character of a font. In that case, return only fonts
1711 the WIDTH times as wide as FACE on FRAME. */)
1712 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1713 Lisp_Object maximum
, Lisp_Object width
)
1716 int size
, avgwidth
IF_LINT (= 0);
1719 CHECK_STRING (pattern
);
1721 if (! NILP (maximum
))
1722 CHECK_NATNUM (maximum
);
1725 CHECK_NUMBER (width
);
1727 /* We can't simply call check_x_frame because this function may be
1728 called before any frame is created. */
1730 frame
= selected_frame
;
1731 f
= frame_or_selected_frame (frame
, 2);
1732 if (! FRAME_WINDOW_P (f
))
1734 /* Perhaps we have not yet created any frame. */
1740 /* Determine the width standard for comparison with the fonts we find. */
1746 /* This is of limited utility since it works with character
1747 widths. Keep it for compatibility. --gerd. */
1748 int face_id
= lookup_named_face (f
, face
, 0);
1749 struct face
*width_face
= (face_id
< 0
1751 : FACE_FROM_ID (f
, face_id
));
1753 if (width_face
&& width_face
->font
)
1755 size
= width_face
->font
->pixel_size
;
1756 avgwidth
= width_face
->font
->average_width
;
1760 size
= FRAME_FONT (f
)->pixel_size
;
1761 avgwidth
= FRAME_FONT (f
)->average_width
;
1764 avgwidth
*= XINT (width
);
1768 Lisp_Object font_spec
;
1769 Lisp_Object args
[2], tail
;
1771 font_spec
= font_spec_from_name (pattern
);
1772 if (!FONTP (font_spec
))
1773 signal_error ("Invalid font name", pattern
);
1777 Ffont_put (font_spec
, QCsize
, make_number (size
));
1778 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1780 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1781 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1783 Lisp_Object font_entity
;
1785 font_entity
= XCAR (tail
);
1786 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1787 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1788 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1790 /* This is a scalable font. For backward compatibility,
1791 we set the specified size. */
1792 font_entity
= copy_font_spec (font_entity
);
1793 ASET (font_entity
, FONT_SIZE_INDEX
,
1794 AREF (font_spec
, FONT_SIZE_INDEX
));
1796 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1799 /* We don't have to check fontsets. */
1801 args
[1] = list_fontsets (f
, pattern
, size
);
1802 return Fnconc (2, args
);
1806 #endif /* HAVE_WINDOW_SYSTEM */
1809 /***********************************************************************
1811 ***********************************************************************/
1813 /* Access face attributes of face LFACE, a Lisp vector. */
1815 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1816 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1817 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1818 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1819 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1820 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1821 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1822 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1823 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1824 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1825 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1826 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1827 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1828 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1829 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1830 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1831 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1833 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1834 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1836 #define LFACEP(LFACE) \
1838 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1839 && EQ (AREF (LFACE, 0), Qface))
1844 /* Check consistency of Lisp face attribute vector ATTRS. */
1847 check_lface_attrs (Lisp_Object
*attrs
)
1849 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1850 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1851 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1852 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1853 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1854 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1855 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1856 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1857 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1858 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1859 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1860 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1861 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1862 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1863 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1864 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1865 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1866 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1867 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1868 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1869 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1870 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1871 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1872 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1873 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1874 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1875 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1876 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1877 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1878 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1879 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1880 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1881 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1882 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1883 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1884 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1885 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1886 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1887 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1888 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1889 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1890 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1891 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1892 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1893 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1894 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1895 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1896 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1897 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1898 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1899 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1900 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1901 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1902 #ifdef HAVE_WINDOW_SYSTEM
1903 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1904 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1905 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1906 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1907 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1908 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1909 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1910 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1911 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1912 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1917 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1920 check_lface (Lisp_Object lface
)
1924 eassert (LFACEP (lface
));
1925 check_lface_attrs (XVECTOR (lface
)->contents
);
1929 #else /* not GLYPH_DEBUG */
1931 #define check_lface_attrs(attrs) (void) 0
1932 #define check_lface(lface) (void) 0
1934 #endif /* GLYPH_DEBUG */
1938 /* Face-merge cycle checking. */
1940 enum named_merge_point_kind
1942 NAMED_MERGE_POINT_NORMAL
,
1943 NAMED_MERGE_POINT_REMAP
1946 /* A `named merge point' is simply a point during face-merging where we
1947 look up a face by name. We keep a stack of which named lookups we're
1948 currently processing so that we can easily detect cycles, using a
1949 linked- list of struct named_merge_point structures, typically
1950 allocated on the stack frame of the named lookup functions which are
1951 active (so no consing is required). */
1952 struct named_merge_point
1954 Lisp_Object face_name
;
1955 enum named_merge_point_kind named_merge_point_kind
;
1956 struct named_merge_point
*prev
;
1960 /* If a face merging cycle is detected for FACE_NAME, return 0,
1961 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1962 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1963 pointed to by NAMED_MERGE_POINTS, and return 1. */
1966 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1967 Lisp_Object face_name
,
1968 enum named_merge_point_kind named_merge_point_kind
,
1969 struct named_merge_point
**named_merge_points
)
1971 struct named_merge_point
*prev
;
1973 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1974 if (EQ (face_name
, prev
->face_name
))
1976 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1977 /* A cycle, so fail. */
1979 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1980 /* A remap `hides ' any previous normal merge points
1981 (because the remap means that it's actually different face),
1982 so as we know the current merge point must be normal, we
1983 can just assume it's OK. */
1987 new_named_merge_point
->face_name
= face_name
;
1988 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1989 new_named_merge_point
->prev
= *named_merge_points
;
1991 *named_merge_points
= new_named_merge_point
;
1997 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1998 to make it a symbol. If FACE_NAME is an alias for another face,
1999 return that face's name.
2001 Return default face in case of errors. */
2004 resolve_face_name (Lisp_Object face_name
, int signal_p
)
2006 Lisp_Object orig_face
;
2007 Lisp_Object tortoise
, hare
;
2009 if (STRINGP (face_name
))
2010 face_name
= intern (SSDATA (face_name
));
2012 if (NILP (face_name
) || !SYMBOLP (face_name
))
2015 orig_face
= face_name
;
2016 tortoise
= hare
= face_name
;
2021 hare
= Fget (hare
, Qface_alias
);
2022 if (NILP (hare
) || !SYMBOLP (hare
))
2026 hare
= Fget (hare
, Qface_alias
);
2027 if (NILP (hare
) || !SYMBOLP (hare
))
2030 tortoise
= Fget (tortoise
, Qface_alias
);
2031 if (EQ (hare
, tortoise
))
2034 xsignal1 (Qcircular_list
, orig_face
);
2043 /* Return the face definition of FACE_NAME on frame F. F null means
2044 return the definition for new frames. FACE_NAME may be a string or
2045 a symbol (apparently Emacs 20.2 allowed strings as face names in
2046 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2047 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2048 is zero, value is nil if FACE_NAME is not a valid face name. */
2049 static inline Lisp_Object
2050 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
2056 lface
= assq_no_quit (face_name
, FVAR (f
, face_alist
));
2058 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2061 lface
= XCDR (lface
);
2063 signal_error ("Invalid face", face_name
);
2065 check_lface (lface
);
2070 /* Return the face definition of FACE_NAME on frame F. F null means
2071 return the definition for new frames. FACE_NAME may be a string or
2072 a symbol (apparently Emacs 20.2 allowed strings as face names in
2073 face text properties; Ediff uses that). If FACE_NAME is an alias
2074 for another face, return that face's definition. If SIGNAL_P is
2075 non-zero, signal an error if FACE_NAME is not a valid face name.
2076 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2078 static inline Lisp_Object
2079 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2081 face_name
= resolve_face_name (face_name
, signal_p
);
2082 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2086 /* Get face attributes of face FACE_NAME from frame-local faces on
2087 frame F. Store the resulting attributes in ATTRS which must point
2088 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2089 is non-zero, signal an error if FACE_NAME does not name a face.
2090 Otherwise, value is zero if FACE_NAME is not a face. */
2093 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
2094 Lisp_Object
*attrs
, int signal_p
)
2098 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2101 memcpy (attrs
, XVECTOR (lface
)->contents
,
2102 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2104 return !NILP (lface
);
2107 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2108 F. Store the resulting attributes in ATTRS which must point to a
2109 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2110 alias for another face, use that face's definition. If SIGNAL_P is
2111 non-zero, signal an error if FACE_NAME does not name a face.
2112 Otherwise, value is zero if FACE_NAME is not a face. */
2115 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
2116 Lisp_Object
*attrs
, int signal_p
,
2117 struct named_merge_point
*named_merge_points
)
2119 Lisp_Object face_remapping
;
2121 face_name
= resolve_face_name (face_name
, signal_p
);
2123 /* See if SYMBOL has been remapped to some other face (usually this
2124 is done buffer-locally). */
2125 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2126 if (CONSP (face_remapping
))
2128 struct named_merge_point named_merge_point
;
2130 if (push_named_merge_point (&named_merge_point
,
2131 face_name
, NAMED_MERGE_POINT_REMAP
,
2132 &named_merge_points
))
2136 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2137 attrs
[i
] = Qunspecified
;
2139 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2140 signal_p
, named_merge_points
);
2144 /* Default case, no remapping. */
2145 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2149 /* Non-zero if all attributes in face attribute vector ATTRS are
2150 specified, i.e. are non-nil. */
2153 lface_fully_specified_p (Lisp_Object
*attrs
)
2157 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2158 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2159 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2162 return i
== LFACE_VECTOR_SIZE
;
2165 #ifdef HAVE_WINDOW_SYSTEM
2167 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2168 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2169 exception is `font' attribute. It is set to FONT_OBJECT regardless
2173 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
2174 Lisp_Object font_object
, int force_p
)
2177 struct font
*font
= XFONT_OBJECT (font_object
);
2179 /* Set attributes only if unspecified, otherwise face defaults for
2180 new frames would never take effect. If the font doesn't have a
2181 specific property, set a normal value for that. */
2183 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2185 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2187 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2190 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2192 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2194 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2197 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2199 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2202 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2205 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2207 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2208 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2210 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2212 val
= FONT_SLANT_FOR_FACE (font_object
);
2213 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2215 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2217 val
= FONT_WIDTH_FOR_FACE (font_object
);
2218 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2221 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2225 #endif /* HAVE_WINDOW_SYSTEM */
2228 /* Merges the face height FROM with the face height TO, and returns the
2229 merged height. If FROM is an invalid height, then INVALID is
2230 returned instead. FROM and TO may be either absolute face heights or
2231 `relative' heights; the returned value is always an absolute height
2232 unless both FROM and TO are relative. */
2235 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2237 Lisp_Object result
= invalid
;
2239 if (INTEGERP (from
))
2240 /* FROM is absolute, just use it as is. */
2242 else if (FLOATP (from
))
2243 /* FROM is a scale, use it to adjust TO. */
2246 /* relative X absolute => absolute */
2247 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2248 else if (FLOATP (to
))
2249 /* relative X relative => relative */
2250 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2251 else if (UNSPECIFIEDP (to
))
2254 else if (FUNCTIONP (from
))
2255 /* FROM is a function, which use to adjust TO. */
2257 /* Call function with current height as argument.
2258 From is the new height. */
2259 result
= safe_call1 (from
, to
);
2261 /* Ensure that if TO was absolute, so is the result. */
2262 if (INTEGERP (to
) && !INTEGERP (result
))
2270 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2271 store the resulting attributes in TO, which must be already be
2272 completely specified and contain only absolute attributes. Every
2273 specified attribute of FROM overrides the corresponding attribute of
2274 TO; relative attributes in FROM are merged with the absolute value in
2275 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2276 loops in face inheritance/remapping; it should be 0 when called from
2280 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2281 struct named_merge_point
*named_merge_points
)
2285 /* If FROM inherits from some other faces, merge their attributes into
2286 TO before merging FROM's direct attributes. Note that an :inherit
2287 attribute of `unspecified' is the same as one of nil; we never
2288 merge :inherit attributes, so nil is more correct, but lots of
2289 other code uses `unspecified' as a generic value for face attributes. */
2290 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2291 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2292 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2294 i
= LFACE_FONT_INDEX
;
2295 if (!UNSPECIFIEDP (from
[i
]))
2297 if (!UNSPECIFIEDP (to
[i
]))
2298 to
[i
] = merge_font_spec (from
[i
], to
[i
]);
2300 to
[i
] = copy_font_spec (from
[i
]);
2301 if (! NILP (AREF (to
[i
], FONT_FOUNDRY_INDEX
)))
2302 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FOUNDRY_INDEX
));
2303 if (! NILP (AREF (to
[i
], FONT_FAMILY_INDEX
)))
2304 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FAMILY_INDEX
));
2305 if (! NILP (AREF (to
[i
], FONT_WEIGHT_INDEX
)))
2306 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (to
[i
]);
2307 if (! NILP (AREF (to
[i
], FONT_SLANT_INDEX
)))
2308 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (to
[i
]);
2309 if (! NILP (AREF (to
[i
], FONT_WIDTH_INDEX
)))
2310 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (to
[i
]);
2311 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2314 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2315 if (!UNSPECIFIEDP (from
[i
]))
2317 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2319 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2320 font_clear_prop (to
, FONT_SIZE_INDEX
);
2322 else if (i
!= LFACE_FONT_INDEX
2323 && ! EQ (to
[i
], from
[i
]))
2326 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2327 font_clear_prop (to
,
2328 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2329 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2330 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2331 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2332 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2333 : FONT_SLANT_INDEX
));
2337 /* TO is always an absolute face, which should inherit from nothing.
2338 We blindly copy the :inherit attribute above and fix it up here. */
2339 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2342 /* Merge the named face FACE_NAME on frame F, into the vector of face
2343 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2344 inheritance. Returns true if FACE_NAME is a valid face name and
2345 merging succeeded. */
2348 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2349 struct named_merge_point
*named_merge_points
)
2351 struct named_merge_point named_merge_point
;
2353 if (push_named_merge_point (&named_merge_point
,
2354 face_name
, NAMED_MERGE_POINT_NORMAL
,
2355 &named_merge_points
))
2357 struct gcpro gcpro1
;
2358 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2359 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2363 GCPRO1 (named_merge_point
.face_name
);
2364 merge_face_vectors (f
, from
, to
, named_merge_points
);
2375 /* Merge face attributes from the lisp `face reference' FACE_REF on
2376 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2377 problems with FACE_REF cause an error message to be shown. Return
2378 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2379 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2380 list structure; it may be 0 for most callers.
2382 FACE_REF may be a single face specification or a list of such
2383 specifications. Each face specification can be:
2385 1. A symbol or string naming a Lisp face.
2387 2. A property list of the form (KEYWORD VALUE ...) where each
2388 KEYWORD is a face attribute name, and value is an appropriate value
2391 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2392 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2393 for compatibility with 20.2.
2395 Face specifications earlier in lists take precedence over later
2399 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2400 int err_msgs
, struct named_merge_point
*named_merge_points
)
2402 int ok
= 1; /* Succeed without an error? */
2404 if (CONSP (face_ref
))
2406 Lisp_Object first
= XCAR (face_ref
);
2408 if (EQ (first
, Qforeground_color
)
2409 || EQ (first
, Qbackground_color
))
2411 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2412 . COLOR). COLOR must be a string. */
2413 Lisp_Object color_name
= XCDR (face_ref
);
2414 Lisp_Object color
= first
;
2416 if (STRINGP (color_name
))
2418 if (EQ (color
, Qforeground_color
))
2419 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2421 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2426 add_to_log ("Invalid face color", color_name
, Qnil
);
2430 else if (SYMBOLP (first
)
2431 && *SDATA (SYMBOL_NAME (first
)) == ':')
2433 /* Assume this is the property list form. */
2434 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2436 Lisp_Object keyword
= XCAR (face_ref
);
2437 Lisp_Object value
= XCAR (XCDR (face_ref
));
2440 /* Specifying `unspecified' is a no-op. */
2441 if (EQ (value
, Qunspecified
))
2443 else if (EQ (keyword
, QCfamily
))
2445 if (STRINGP (value
))
2447 to
[LFACE_FAMILY_INDEX
] = value
;
2448 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2453 else if (EQ (keyword
, QCfoundry
))
2455 if (STRINGP (value
))
2457 to
[LFACE_FOUNDRY_INDEX
] = value
;
2458 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2463 else if (EQ (keyword
, QCheight
))
2465 Lisp_Object new_height
=
2466 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2468 if (! NILP (new_height
))
2470 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2471 font_clear_prop (to
, FONT_SIZE_INDEX
);
2476 else if (EQ (keyword
, QCweight
))
2478 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2480 to
[LFACE_WEIGHT_INDEX
] = value
;
2481 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2486 else if (EQ (keyword
, QCslant
))
2488 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2490 to
[LFACE_SLANT_INDEX
] = value
;
2491 font_clear_prop (to
, FONT_SLANT_INDEX
);
2496 else if (EQ (keyword
, QCunderline
))
2502 to
[LFACE_UNDERLINE_INDEX
] = value
;
2506 else if (EQ (keyword
, QCoverline
))
2511 to
[LFACE_OVERLINE_INDEX
] = value
;
2515 else if (EQ (keyword
, QCstrike_through
))
2520 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2524 else if (EQ (keyword
, QCbox
))
2527 value
= make_number (1);
2528 if (INTEGERP (value
)
2532 to
[LFACE_BOX_INDEX
] = value
;
2536 else if (EQ (keyword
, QCinverse_video
)
2537 || EQ (keyword
, QCreverse_video
))
2539 if (EQ (value
, Qt
) || NILP (value
))
2540 to
[LFACE_INVERSE_INDEX
] = value
;
2544 else if (EQ (keyword
, QCforeground
))
2546 if (STRINGP (value
))
2547 to
[LFACE_FOREGROUND_INDEX
] = value
;
2551 else if (EQ (keyword
, QCbackground
))
2553 if (STRINGP (value
))
2554 to
[LFACE_BACKGROUND_INDEX
] = value
;
2558 else if (EQ (keyword
, QCstipple
))
2560 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
2561 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2562 if (!NILP (pixmap_p
))
2563 to
[LFACE_STIPPLE_INDEX
] = value
;
2568 else if (EQ (keyword
, QCwidth
))
2570 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2572 to
[LFACE_SWIDTH_INDEX
] = value
;
2573 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2578 else if (EQ (keyword
, QCinherit
))
2580 /* This is not really very useful; it's just like a
2581 normal face reference. */
2582 if (! merge_face_ref (f
, value
, to
,
2583 err_msgs
, named_merge_points
))
2591 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2595 face_ref
= XCDR (XCDR (face_ref
));
2600 /* This is a list of face refs. Those at the beginning of the
2601 list take precedence over what follows, so we have to merge
2602 from the end backwards. */
2603 Lisp_Object next
= XCDR (face_ref
);
2606 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2608 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2614 /* FACE_REF ought to be a face name. */
2615 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2616 if (!ok
&& err_msgs
)
2617 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2624 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2625 Sinternal_make_lisp_face
, 1, 2, 0,
2626 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2627 If FACE was not known as a face before, create a new one.
2628 If optional argument FRAME is specified, make a frame-local face
2629 for that frame. Otherwise operate on the global face definition.
2630 Value is a vector of face attributes. */)
2631 (Lisp_Object face
, Lisp_Object frame
)
2633 Lisp_Object global_lface
, lface
;
2637 CHECK_SYMBOL (face
);
2638 global_lface
= lface_from_face_name (NULL
, face
, 0);
2642 CHECK_LIVE_FRAME (frame
);
2644 lface
= lface_from_face_name (f
, face
, 0);
2647 f
= NULL
, lface
= Qnil
;
2649 /* Add a global definition if there is none. */
2650 if (NILP (global_lface
))
2652 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2654 ASET (global_lface
, 0, Qface
);
2655 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2656 Vface_new_frame_defaults
);
2658 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2659 face id to Lisp face is given by the vector lface_id_to_name.
2660 The mapping from Lisp face to Lisp face id is given by the
2661 property `face' of the Lisp face name. */
2662 if (next_lface_id
== lface_id_to_name_size
)
2664 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2665 sizeof *lface_id_to_name
);
2667 lface_id_to_name
[next_lface_id
] = face
;
2668 Fput (face
, Qface
, make_number (next_lface_id
));
2672 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2673 ASET (global_lface
, i
, Qunspecified
);
2675 /* Add a frame-local definition. */
2680 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2682 ASET (lface
, 0, Qface
);
2683 FVAR (f
, face_alist
) = Fcons (Fcons (face
, lface
), FVAR (f
,
2687 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2688 ASET (lface
, i
, Qunspecified
);
2691 lface
= global_lface
;
2693 /* Changing a named face means that all realized faces depending on
2694 that face are invalid. Since we cannot tell which realized faces
2695 depend on the face, make sure they are all removed. This is done
2696 by incrementing face_change_count. The next call to
2697 init_iterator will then free realized faces. */
2698 if (NILP (Fget (face
, Qface_no_inherit
)))
2700 ++face_change_count
;
2701 ++windows_or_buffers_changed
;
2704 eassert (LFACEP (lface
));
2705 check_lface (lface
);
2710 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2711 Sinternal_lisp_face_p
, 1, 2, 0,
2712 doc
: /* Return non-nil if FACE names a face.
2713 FACE should be a symbol or string.
2714 If optional second argument FRAME is non-nil, check for the
2715 existence of a frame-local face with name FACE on that frame.
2716 Otherwise check for the existence of a global face. */)
2717 (Lisp_Object face
, Lisp_Object frame
)
2721 face
= resolve_face_name (face
, 1);
2725 CHECK_LIVE_FRAME (frame
);
2726 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2729 lface
= lface_from_face_name (NULL
, face
, 0);
2735 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2736 Sinternal_copy_lisp_face
, 4, 4, 0,
2737 doc
: /* Copy face FROM to TO.
2738 If FRAME is t, copy the global face definition of FROM.
2739 Otherwise, copy the frame-local definition of FROM on FRAME.
2740 If NEW-FRAME is a frame, copy that data into the frame-local
2741 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2742 FRAME controls where the data is copied to.
2744 The value is TO. */)
2745 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2747 Lisp_Object lface
, copy
;
2749 CHECK_SYMBOL (from
);
2754 /* Copy global definition of FROM. We don't make copies of
2755 strings etc. because 20.2 didn't do it either. */
2756 lface
= lface_from_face_name (NULL
, from
, 1);
2757 copy
= Finternal_make_lisp_face (to
, Qnil
);
2761 /* Copy frame-local definition of FROM. */
2762 if (NILP (new_frame
))
2764 CHECK_LIVE_FRAME (frame
);
2765 CHECK_LIVE_FRAME (new_frame
);
2766 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2767 copy
= Finternal_make_lisp_face (to
, new_frame
);
2770 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2771 LFACE_VECTOR_SIZE
* word_size
);
2773 /* Changing a named face means that all realized faces depending on
2774 that face are invalid. Since we cannot tell which realized faces
2775 depend on the face, make sure they are all removed. This is done
2776 by incrementing face_change_count. The next call to
2777 init_iterator will then free realized faces. */
2778 if (NILP (Fget (to
, Qface_no_inherit
)))
2780 ++face_change_count
;
2781 ++windows_or_buffers_changed
;
2788 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2789 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2790 doc
: /* Set attribute ATTR of FACE to VALUE.
2791 FRAME being a frame means change the face on that frame.
2792 FRAME nil means change the face of the selected frame.
2793 FRAME t means change the default for new frames.
2794 FRAME 0 means change the face on all frames, and change the default
2796 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2799 Lisp_Object old_value
= Qnil
;
2800 /* Set one of enum font_property_index (> 0) if ATTR is one of
2801 font-related attributes other than QCfont and QCfontset. */
2802 enum font_property_index prop_index
= 0;
2804 CHECK_SYMBOL (face
);
2805 CHECK_SYMBOL (attr
);
2807 face
= resolve_face_name (face
, 1);
2809 /* If FRAME is 0, change face on all frames, and change the
2810 default for new frames. */
2811 if (INTEGERP (frame
) && XINT (frame
) == 0)
2814 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2815 FOR_EACH_FRAME (tail
, frame
)
2816 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2820 /* Set lface to the Lisp attribute vector of FACE. */
2823 lface
= lface_from_face_name (NULL
, face
, 1);
2825 /* When updating face-new-frame-defaults, we put :ignore-defface
2826 where the caller wants `unspecified'. This forces the frame
2827 defaults to ignore the defface value. Otherwise, the defface
2828 will take effect, which is generally not what is intended.
2829 The value of that attribute will be inherited from some other
2830 face during face merging. See internal_merge_in_global_face. */
2831 if (UNSPECIFIEDP (value
))
2832 value
= QCignore_defface
;
2837 frame
= selected_frame
;
2839 CHECK_LIVE_FRAME (frame
);
2840 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2842 /* If a frame-local face doesn't exist yet, create one. */
2844 lface
= Finternal_make_lisp_face (face
, frame
);
2847 if (EQ (attr
, QCfamily
))
2849 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2851 CHECK_STRING (value
);
2852 if (SCHARS (value
) == 0)
2853 signal_error ("Invalid face family", value
);
2855 old_value
= LFACE_FAMILY (lface
);
2856 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2857 prop_index
= FONT_FAMILY_INDEX
;
2859 else if (EQ (attr
, QCfoundry
))
2861 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2863 CHECK_STRING (value
);
2864 if (SCHARS (value
) == 0)
2865 signal_error ("Invalid face foundry", value
);
2867 old_value
= LFACE_FOUNDRY (lface
);
2868 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2869 prop_index
= FONT_FOUNDRY_INDEX
;
2871 else if (EQ (attr
, QCheight
))
2873 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2875 if (EQ (face
, Qdefault
))
2877 /* The default face must have an absolute size. */
2878 if (!INTEGERP (value
) || XINT (value
) <= 0)
2879 signal_error ("Default face height not absolute and positive",
2884 /* For non-default faces, do a test merge with a random
2885 height to see if VALUE's ok. */
2886 Lisp_Object test
= merge_face_heights (value
,
2889 if (!INTEGERP (test
) || XINT (test
) <= 0)
2890 signal_error ("Face height does not produce a positive integer",
2895 old_value
= LFACE_HEIGHT (lface
);
2896 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2897 prop_index
= FONT_SIZE_INDEX
;
2899 else if (EQ (attr
, QCweight
))
2901 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2903 CHECK_SYMBOL (value
);
2904 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2905 signal_error ("Invalid face weight", value
);
2907 old_value
= LFACE_WEIGHT (lface
);
2908 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2909 prop_index
= FONT_WEIGHT_INDEX
;
2911 else if (EQ (attr
, QCslant
))
2913 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2915 CHECK_SYMBOL (value
);
2916 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2917 signal_error ("Invalid face slant", value
);
2919 old_value
= LFACE_SLANT (lface
);
2920 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2921 prop_index
= FONT_SLANT_INDEX
;
2923 else if (EQ (attr
, QCunderline
))
2927 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2929 else if (NILP (value
) || EQ (value
, Qt
))
2931 else if (STRINGP (value
) && SCHARS (value
) > 0)
2933 else if (CONSP (value
))
2935 Lisp_Object key
, val
, list
;
2940 while (!NILP (CAR_SAFE(list
)))
2942 key
= CAR_SAFE (list
);
2943 list
= CDR_SAFE (list
);
2944 val
= CAR_SAFE (list
);
2945 list
= CDR_SAFE (list
);
2947 if (NILP (key
) || NILP (val
))
2953 else if (EQ (key
, QCcolor
)
2954 && !(EQ (val
, Qforeground_color
)
2955 || (STRINGP (val
) && SCHARS (val
) > 0)))
2961 else if (EQ (key
, QCstyle
)
2962 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2971 signal_error ("Invalid face underline", value
);
2973 old_value
= LFACE_UNDERLINE (lface
);
2974 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2976 else if (EQ (attr
, QCoverline
))
2978 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2979 if ((SYMBOLP (value
)
2981 && !EQ (value
, Qnil
))
2982 /* Overline color. */
2984 && SCHARS (value
) == 0))
2985 signal_error ("Invalid face overline", value
);
2987 old_value
= LFACE_OVERLINE (lface
);
2988 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2990 else if (EQ (attr
, QCstrike_through
))
2992 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2993 if ((SYMBOLP (value
)
2995 && !EQ (value
, Qnil
))
2996 /* Strike-through color. */
2998 && SCHARS (value
) == 0))
2999 signal_error ("Invalid face strike-through", value
);
3001 old_value
= LFACE_STRIKE_THROUGH (lface
);
3002 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
3004 else if (EQ (attr
, QCbox
))
3008 /* Allow t meaning a simple box of width 1 in foreground color
3011 value
= make_number (1);
3013 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3015 else if (NILP (value
))
3017 else if (INTEGERP (value
))
3018 valid_p
= XINT (value
) != 0;
3019 else if (STRINGP (value
))
3020 valid_p
= SCHARS (value
) > 0;
3021 else if (CONSP (value
))
3037 if (EQ (k
, QCline_width
))
3039 if (!INTEGERP (v
) || XINT (v
) == 0)
3042 else if (EQ (k
, QCcolor
))
3044 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3047 else if (EQ (k
, QCstyle
))
3049 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3056 valid_p
= NILP (tem
);
3062 signal_error ("Invalid face box", value
);
3064 old_value
= LFACE_BOX (lface
);
3065 ASET (lface
, LFACE_BOX_INDEX
, value
);
3067 else if (EQ (attr
, QCinverse_video
)
3068 || EQ (attr
, QCreverse_video
))
3070 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3072 CHECK_SYMBOL (value
);
3073 if (!EQ (value
, Qt
) && !NILP (value
))
3074 signal_error ("Invalid inverse-video face attribute value", value
);
3076 old_value
= LFACE_INVERSE (lface
);
3077 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
3079 else if (EQ (attr
, QCforeground
))
3081 /* Compatibility with 20.x. */
3083 value
= Qunspecified
;
3084 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3086 /* Don't check for valid color names here because it depends
3087 on the frame (display) whether the color will be valid
3088 when the face is realized. */
3089 CHECK_STRING (value
);
3090 if (SCHARS (value
) == 0)
3091 signal_error ("Empty foreground color value", value
);
3093 old_value
= LFACE_FOREGROUND (lface
);
3094 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3096 else if (EQ (attr
, QCbackground
))
3098 /* Compatibility with 20.x. */
3100 value
= Qunspecified
;
3101 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3103 /* Don't check for valid color names here because it depends
3104 on the frame (display) whether the color will be valid
3105 when the face is realized. */
3106 CHECK_STRING (value
);
3107 if (SCHARS (value
) == 0)
3108 signal_error ("Empty background color value", value
);
3110 old_value
= LFACE_BACKGROUND (lface
);
3111 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3113 else if (EQ (attr
, QCstipple
))
3115 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3116 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3118 && NILP (Fbitmap_spec_p (value
)))
3119 signal_error ("Invalid stipple attribute", value
);
3120 old_value
= LFACE_STIPPLE (lface
);
3121 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3122 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3124 else if (EQ (attr
, QCwidth
))
3126 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3128 CHECK_SYMBOL (value
);
3129 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3130 signal_error ("Invalid face width", value
);
3132 old_value
= LFACE_SWIDTH (lface
);
3133 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3134 prop_index
= FONT_WIDTH_INDEX
;
3136 else if (EQ (attr
, QCfont
))
3138 #ifdef HAVE_WINDOW_SYSTEM
3139 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3141 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3145 old_value
= LFACE_FONT (lface
);
3146 if (! FONTP (value
))
3148 if (STRINGP (value
))
3150 Lisp_Object name
= value
;
3151 int fontset
= fs_query_fontset (name
, 0);
3154 name
= fontset_ascii (fontset
);
3155 value
= font_spec_from_name (name
);
3157 signal_error ("Invalid font name", name
);
3160 signal_error ("Invalid font or font-spec", value
);
3163 f
= XFRAME (selected_frame
);
3166 if (! FONT_OBJECT_P (value
))
3168 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3169 Lisp_Object font_object
;
3171 font_object
= font_load_for_lface (f
, attrs
, value
);
3172 if (NILP (font_object
))
3173 signal_error ("Font not available", value
);
3174 value
= font_object
;
3176 set_lface_from_font (f
, lface
, value
, 1);
3179 ASET (lface
, LFACE_FONT_INDEX
, value
);
3181 #endif /* HAVE_WINDOW_SYSTEM */
3183 else if (EQ (attr
, QCfontset
))
3185 #ifdef HAVE_WINDOW_SYSTEM
3186 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3190 old_value
= LFACE_FONTSET (lface
);
3191 tmp
= Fquery_fontset (value
, Qnil
);
3193 signal_error ("Invalid fontset name", value
);
3194 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3196 #endif /* HAVE_WINDOW_SYSTEM */
3198 else if (EQ (attr
, QCinherit
))
3201 if (SYMBOLP (value
))
3204 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3205 if (!SYMBOLP (XCAR (tail
)))
3208 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3210 signal_error ("Invalid face inheritance", value
);
3212 else if (EQ (attr
, QCbold
))
3214 old_value
= LFACE_WEIGHT (lface
);
3215 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3216 prop_index
= FONT_WEIGHT_INDEX
;
3218 else if (EQ (attr
, QCitalic
))
3221 old_value
= LFACE_SLANT (lface
);
3222 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3223 prop_index
= FONT_SLANT_INDEX
;
3226 signal_error ("Invalid face attribute name", attr
);
3230 /* If a font-related attribute other than QCfont and QCfontset
3231 is specified, and if the original QCfont attribute has a font
3232 (font-spec or font-object), set the corresponding property in
3233 the font to nil so that the font selector doesn't think that
3234 the attribute is mandatory. Also, clear the average
3236 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3239 /* Changing a named face means that all realized faces depending on
3240 that face are invalid. Since we cannot tell which realized faces
3241 depend on the face, make sure they are all removed. This is done
3242 by incrementing face_change_count. The next call to
3243 init_iterator will then free realized faces. */
3245 && NILP (Fget (face
, Qface_no_inherit
))
3246 && NILP (Fequal (old_value
, value
)))
3248 ++face_change_count
;
3249 ++windows_or_buffers_changed
;
3252 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3253 && NILP (Fequal (old_value
, value
)))
3259 if (EQ (face
, Qdefault
))
3261 #ifdef HAVE_WINDOW_SYSTEM
3262 /* Changed font-related attributes of the `default' face are
3263 reflected in changed `font' frame parameters. */
3265 && (prop_index
|| EQ (attr
, QCfont
))
3266 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3267 set_font_frame_param (frame
, lface
);
3269 #endif /* HAVE_WINDOW_SYSTEM */
3271 if (EQ (attr
, QCforeground
))
3272 param
= Qforeground_color
;
3273 else if (EQ (attr
, QCbackground
))
3274 param
= Qbackground_color
;
3276 #ifdef HAVE_WINDOW_SYSTEM
3278 else if (EQ (face
, Qscroll_bar
))
3280 /* Changing the colors of `scroll-bar' sets frame parameters
3281 `scroll-bar-foreground' and `scroll-bar-background'. */
3282 if (EQ (attr
, QCforeground
))
3283 param
= Qscroll_bar_foreground
;
3284 else if (EQ (attr
, QCbackground
))
3285 param
= Qscroll_bar_background
;
3287 #endif /* not WINDOWSNT */
3288 else if (EQ (face
, Qborder
))
3290 /* Changing background color of `border' sets frame parameter
3292 if (EQ (attr
, QCbackground
))
3293 param
= Qborder_color
;
3295 else if (EQ (face
, Qcursor
))
3297 /* Changing background color of `cursor' sets frame parameter
3299 if (EQ (attr
, QCbackground
))
3300 param
= Qcursor_color
;
3302 else if (EQ (face
, Qmouse
))
3304 /* Changing background color of `mouse' sets frame parameter
3306 if (EQ (attr
, QCbackground
))
3307 param
= Qmouse_color
;
3309 #endif /* HAVE_WINDOW_SYSTEM */
3310 else if (EQ (face
, Qmenu
))
3312 /* Indicate that we have to update the menu bar when
3313 realizing faces on FRAME. FRAME t change the
3314 default for new frames. We do this by setting
3315 setting the flag in new face caches */
3318 struct frame
*f
= XFRAME (frame
);
3319 if (FRAME_FACE_CACHE (f
) == NULL
)
3320 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3321 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3324 menu_face_changed_default
= 1;
3330 /* Update `default-frame-alist', which is used for new frames. */
3332 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3335 /* Update the current frame's parameters. */
3338 cons
= XCAR (Vparam_value_alist
);
3339 XSETCAR (cons
, param
);
3340 XSETCDR (cons
, value
);
3341 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3350 /* Update the corresponding face when frame parameter PARAM on frame F
3351 has been assigned the value NEW_VALUE. */
3354 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3355 Lisp_Object new_value
)
3357 Lisp_Object face
= Qnil
;
3360 /* If there are no faces yet, give up. This is the case when called
3361 from Fx_create_frame, and we do the necessary things later in
3362 face-set-after-frame-defaults. */
3363 if (NILP (FVAR (f
, face_alist
)))
3366 if (EQ (param
, Qforeground_color
))
3369 lface
= lface_from_face_name (f
, face
, 1);
3370 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3371 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3372 realize_basic_faces (f
);
3374 else if (EQ (param
, Qbackground_color
))
3378 /* Changing the background color might change the background
3379 mode, so that we have to load new defface specs.
3380 Call frame-set-background-mode to do that. */
3381 XSETFRAME (frame
, f
);
3382 call1 (Qframe_set_background_mode
, frame
);
3385 lface
= lface_from_face_name (f
, face
, 1);
3386 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3387 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3388 realize_basic_faces (f
);
3390 #ifdef HAVE_WINDOW_SYSTEM
3391 else if (EQ (param
, Qborder_color
))
3394 lface
= lface_from_face_name (f
, face
, 1);
3395 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3396 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3398 else if (EQ (param
, Qcursor_color
))
3401 lface
= lface_from_face_name (f
, face
, 1);
3402 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3403 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3405 else if (EQ (param
, Qmouse_color
))
3408 lface
= lface_from_face_name (f
, face
, 1);
3409 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3410 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3414 /* Changing a named face means that all realized faces depending on
3415 that face are invalid. Since we cannot tell which realized faces
3416 depend on the face, make sure they are all removed. This is done
3417 by incrementing face_change_count. The next call to
3418 init_iterator will then free realized faces. */
3420 && NILP (Fget (face
, Qface_no_inherit
)))
3422 ++face_change_count
;
3423 ++windows_or_buffers_changed
;
3428 #ifdef HAVE_WINDOW_SYSTEM
3430 /* Set the `font' frame parameter of FRAME determined from the
3431 font-object set in `default' face attributes LFACE. */
3434 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3436 struct frame
*f
= XFRAME (frame
);
3439 if (FRAME_WINDOW_P (f
)
3440 /* Don't do anything if the font is `unspecified'. This can
3441 happen during frame creation. */
3442 && (font
= LFACE_FONT (lface
),
3443 ! UNSPECIFIEDP (font
)))
3445 if (FONT_SPEC_P (font
))
3447 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3450 ASET (lface
, LFACE_FONT_INDEX
, font
);
3452 f
->default_face_done_p
= 0;
3453 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3458 /* Get the value of X resource RESOURCE, class CLASS for the display
3459 of frame FRAME. This is here because ordinary `x-get-resource'
3460 doesn't take a frame argument. */
3462 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3463 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3464 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3466 Lisp_Object value
= Qnil
;
3467 CHECK_STRING (resource
);
3468 CHECK_STRING (class);
3469 CHECK_LIVE_FRAME (frame
);
3471 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3472 resource
, class, Qnil
, Qnil
);
3478 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3479 If VALUE is "on" or "true", return t. If VALUE is "off" or
3480 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3481 error; if SIGNAL_P is zero, return 0. */
3484 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3486 Lisp_Object result
= make_number (0);
3488 eassert (STRINGP (value
));
3490 if (xstrcasecmp (SSDATA (value
), "on") == 0
3491 || xstrcasecmp (SSDATA (value
), "true") == 0)
3493 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3494 || xstrcasecmp (SSDATA (value
), "false") == 0)
3496 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3497 result
= Qunspecified
;
3499 signal_error ("Invalid face attribute value from X resource", value
);
3505 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3506 Finternal_set_lisp_face_attribute_from_resource
,
3507 Sinternal_set_lisp_face_attribute_from_resource
,
3508 3, 4, 0, doc
: /* */)
3509 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3511 CHECK_SYMBOL (face
);
3512 CHECK_SYMBOL (attr
);
3513 CHECK_STRING (value
);
3515 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3516 value
= Qunspecified
;
3517 else if (EQ (attr
, QCheight
))
3519 value
= Fstring_to_number (value
, make_number (10));
3520 if (XINT (value
) <= 0)
3521 signal_error ("Invalid face height from X resource", value
);
3523 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3524 value
= face_boolean_x_resource_value (value
, 1);
3525 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3526 value
= intern (SSDATA (value
));
3527 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3528 value
= face_boolean_x_resource_value (value
, 1);
3529 else if (EQ (attr
, QCunderline
)
3530 || EQ (attr
, QCoverline
)
3531 || EQ (attr
, QCstrike_through
))
3533 Lisp_Object boolean_value
;
3535 /* If the result of face_boolean_x_resource_value is t or nil,
3536 VALUE does NOT specify a color. */
3537 boolean_value
= face_boolean_x_resource_value (value
, 0);
3538 if (SYMBOLP (boolean_value
))
3539 value
= boolean_value
;
3541 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3542 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3544 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3547 #endif /* HAVE_WINDOW_SYSTEM */
3550 /***********************************************************************
3552 ***********************************************************************/
3554 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3556 /* Make menus on frame F appear as specified by the `menu' face. */
3559 x_update_menu_appearance (struct frame
*f
)
3561 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3565 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3570 ptrdiff_t bufsize
= sizeof line
;
3571 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3572 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3573 const char *myname
= SSDATA (Vx_resource_name
);
3576 const char *popup_path
= "popup_menu";
3578 const char *popup_path
= "menu.popup";
3581 if (STRINGP (LFACE_FOREGROUND (lface
)))
3583 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3585 SDATA (LFACE_FOREGROUND (lface
)));
3586 XrmPutLineResource (&rdb
, line
);
3587 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3588 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3589 XrmPutLineResource (&rdb
, line
);
3593 if (STRINGP (LFACE_BACKGROUND (lface
)))
3595 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3597 SDATA (LFACE_BACKGROUND (lface
)));
3598 XrmPutLineResource (&rdb
, line
);
3600 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3601 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3602 XrmPutLineResource (&rdb
, line
);
3607 /* On Solaris 5.8, it's been reported that the `menu' face
3608 can be unspecified here, during startup. Why this
3609 happens remains unknown. -- cyd */
3610 && FONTP (LFACE_FONT (lface
))
3611 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3612 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3613 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3614 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3615 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3616 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3618 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3620 const char *suffix
= "List";
3623 #if defined HAVE_X_I18N
3625 const char *suffix
= "Set";
3627 const char *suffix
= "";
3634 #if defined HAVE_X_I18N
3635 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3637 char *fontsetname
= SSDATA (xlfd
);
3639 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3640 myname
, suffix
, fontsetname
);
3641 XrmPutLineResource (&rdb
, line
);
3643 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3644 myname
, popup_path
, suffix
, fontsetname
);
3645 XrmPutLineResource (&rdb
, line
);
3647 if (fontsetname
!= SSDATA (xlfd
))
3648 xfree (fontsetname
);
3652 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3653 free_frame_menubar (f
);
3660 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3663 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3664 Sface_attribute_relative_p
,
3666 doc
: /* Check whether a face attribute value is relative.
3667 Specifically, this function returns t if the attribute ATTRIBUTE
3668 with the value VALUE is relative.
3670 A relative value is one that doesn't entirely override whatever is
3671 inherited from another face. For most possible attributes,
3672 the only relative value that users see is `unspecified'.
3673 However, for :height, floating point values are also relative. */)
3674 (Lisp_Object attribute
, Lisp_Object value
)
3676 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3678 else if (EQ (attribute
, QCheight
))
3679 return INTEGERP (value
) ? Qnil
: Qt
;
3684 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3686 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3687 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3688 the result will be absolute, otherwise it will be relative. */)
3689 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3691 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3693 else if (EQ (attribute
, QCheight
))
3694 return merge_face_heights (value1
, value2
, value1
);
3700 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3701 Sinternal_get_lisp_face_attribute
,
3703 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3704 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3705 face attribute name, signal an error.
3706 If the optional argument FRAME is given, report on face SYMBOL in that
3707 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3708 frames). If FRAME is omitted or nil, use the selected frame. */)
3709 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3711 Lisp_Object lface
, value
= Qnil
;
3713 CHECK_SYMBOL (symbol
);
3714 CHECK_SYMBOL (keyword
);
3717 lface
= lface_from_face_name (NULL
, symbol
, 1);
3721 frame
= selected_frame
;
3722 CHECK_LIVE_FRAME (frame
);
3723 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3726 if (EQ (keyword
, QCfamily
))
3727 value
= LFACE_FAMILY (lface
);
3728 else if (EQ (keyword
, QCfoundry
))
3729 value
= LFACE_FOUNDRY (lface
);
3730 else if (EQ (keyword
, QCheight
))
3731 value
= LFACE_HEIGHT (lface
);
3732 else if (EQ (keyword
, QCweight
))
3733 value
= LFACE_WEIGHT (lface
);
3734 else if (EQ (keyword
, QCslant
))
3735 value
= LFACE_SLANT (lface
);
3736 else if (EQ (keyword
, QCunderline
))
3737 value
= LFACE_UNDERLINE (lface
);
3738 else if (EQ (keyword
, QCoverline
))
3739 value
= LFACE_OVERLINE (lface
);
3740 else if (EQ (keyword
, QCstrike_through
))
3741 value
= LFACE_STRIKE_THROUGH (lface
);
3742 else if (EQ (keyword
, QCbox
))
3743 value
= LFACE_BOX (lface
);
3744 else if (EQ (keyword
, QCinverse_video
)
3745 || EQ (keyword
, QCreverse_video
))
3746 value
= LFACE_INVERSE (lface
);
3747 else if (EQ (keyword
, QCforeground
))
3748 value
= LFACE_FOREGROUND (lface
);
3749 else if (EQ (keyword
, QCbackground
))
3750 value
= LFACE_BACKGROUND (lface
);
3751 else if (EQ (keyword
, QCstipple
))
3752 value
= LFACE_STIPPLE (lface
);
3753 else if (EQ (keyword
, QCwidth
))
3754 value
= LFACE_SWIDTH (lface
);
3755 else if (EQ (keyword
, QCinherit
))
3756 value
= LFACE_INHERIT (lface
);
3757 else if (EQ (keyword
, QCfont
))
3758 value
= LFACE_FONT (lface
);
3759 else if (EQ (keyword
, QCfontset
))
3760 value
= LFACE_FONTSET (lface
);
3762 signal_error ("Invalid face attribute name", keyword
);
3764 if (IGNORE_DEFFACE_P (value
))
3765 return Qunspecified
;
3771 DEFUN ("internal-lisp-face-attribute-values",
3772 Finternal_lisp_face_attribute_values
,
3773 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3774 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3775 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3778 Lisp_Object result
= Qnil
;
3780 CHECK_SYMBOL (attr
);
3782 if (EQ (attr
, QCunderline
))
3783 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3784 else if (EQ (attr
, QCoverline
))
3785 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3786 else if (EQ (attr
, QCstrike_through
))
3787 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3788 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3789 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3795 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3796 Sinternal_merge_in_global_face
, 2, 2, 0,
3797 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3798 Default face attributes override any local face attributes. */)
3799 (Lisp_Object face
, Lisp_Object frame
)
3802 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3803 struct frame
*f
= XFRAME (frame
);
3805 CHECK_LIVE_FRAME (frame
);
3806 global_lface
= lface_from_face_name (NULL
, face
, 1);
3807 local_lface
= lface_from_face_name (f
, face
, 0);
3808 if (NILP (local_lface
))
3809 local_lface
= Finternal_make_lisp_face (face
, frame
);
3811 /* Make every specified global attribute override the local one.
3812 BEWARE!! This is only used from `face-set-after-frame-default' where
3813 the local frame is defined from default specs in `face-defface-spec'
3814 and those should be overridden by global settings. Hence the strange
3815 "global before local" priority. */
3816 lvec
= XVECTOR (local_lface
)->contents
;
3817 gvec
= XVECTOR (global_lface
)->contents
;
3818 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3819 if (IGNORE_DEFFACE_P (gvec
[i
]))
3820 lvec
[i
] = Qunspecified
;
3821 else if (! UNSPECIFIEDP (gvec
[i
]))
3824 /* If the default face was changed, update the face cache and the
3825 `font' frame parameter. */
3826 if (EQ (face
, Qdefault
))
3828 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3829 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3830 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3832 /* This can be NULL (e.g., in batch mode). */
3835 /* Ensure that the face vector is fully specified by merging
3836 the previously-cached vector. */
3837 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3838 merge_face_vectors (f
, lvec
, attrs
, 0);
3839 memcpy (lvec
, attrs
, sizeof attrs
);
3840 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3842 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3843 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3844 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3845 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3846 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3847 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3848 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3851 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3852 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3856 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3857 Fmodify_frame_parameters (frame
,
3858 Fcons (Fcons (Qforeground_color
,
3859 gvec
[LFACE_FOREGROUND_INDEX
]),
3862 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3863 Fmodify_frame_parameters (frame
,
3864 Fcons (Fcons (Qbackground_color
,
3865 gvec
[LFACE_BACKGROUND_INDEX
]),
3874 /* The following function is implemented for compatibility with 20.2.
3875 The function is used in x-resolve-fonts when it is asked to
3876 return fonts with the same size as the font of a face. This is
3877 done in fontset.el. */
3879 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3880 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3881 The font name is, by default, for ASCII characters.
3882 If the optional argument FRAME is given, report on face FACE in that frame.
3883 If FRAME is t, report on the defaults for face FACE (for new frames).
3884 The font default for a face is either nil, or a list
3885 of the form (bold), (italic) or (bold italic).
3886 If FRAME is omitted or nil, use the selected frame. And, in this case,
3887 if the optional third argument CHARACTER is given,
3888 return the font name used for CHARACTER. */)
3889 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3893 Lisp_Object result
= Qnil
;
3894 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3896 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3897 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3898 result
= Fcons (Qbold
, result
);
3900 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3901 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3902 result
= Fcons (Qitalic
, result
);
3908 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3909 int face_id
= lookup_named_face (f
, face
, 1);
3910 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3914 #ifdef HAVE_WINDOW_SYSTEM
3915 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3917 CHECK_CHARACTER (character
);
3918 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3919 fface
= FACE_FROM_ID (f
, face_id
);
3922 ? fface
->font
->props
[FONT_NAME_INDEX
]
3924 #else /* !HAVE_WINDOW_SYSTEM */
3925 return build_string (FRAME_MSDOS_P (f
)
3927 : FRAME_W32_P (f
) ? "w32term"
3934 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3935 all attributes are `equal'. Tries to be fast because this function
3936 is called quite often. */
3939 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3941 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3942 and the other is specified. */
3943 if (XTYPE (v1
) != XTYPE (v2
))
3952 if (SBYTES (v1
) != SBYTES (v2
))
3955 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3962 return !NILP (Fequal (v1
, v2
));
3967 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3968 all attributes are `equal'. Tries to be fast because this function
3969 is called quite often. */
3972 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3976 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3977 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3983 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3984 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3985 doc
: /* True if FACE1 and FACE2 are equal.
3986 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3987 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3988 If FRAME is omitted or nil, use the selected frame. */)
3989 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3993 Lisp_Object lface1
, lface2
;
3998 /* Don't use check_x_frame here because this function is called
3999 before X frames exist. At that time, if FRAME is nil,
4000 selected_frame will be used which is the frame dumped with
4001 Emacs. That frame is not an X frame. */
4002 f
= frame_or_selected_frame (frame
, 2);
4004 lface1
= lface_from_face_name (f
, face1
, 1);
4005 lface2
= lface_from_face_name (f
, face2
, 1);
4006 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4007 XVECTOR (lface2
)->contents
);
4008 return equal_p
? Qt
: Qnil
;
4012 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4013 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4014 doc
: /* True if FACE has no attribute specified.
4015 If the optional argument FRAME is given, report on face FACE in that frame.
4016 If FRAME is t, report on the defaults for face FACE (for new frames).
4017 If FRAME is omitted or nil, use the selected frame. */)
4018 (Lisp_Object face
, Lisp_Object frame
)
4025 frame
= selected_frame
;
4026 CHECK_LIVE_FRAME (frame
);
4030 lface
= lface_from_face_name (NULL
, face
, 1);
4032 lface
= lface_from_face_name (f
, face
, 1);
4034 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4035 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4038 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4042 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4044 doc
: /* Return an alist of frame-local faces defined on FRAME.
4045 For internal use only. */)
4048 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4049 return FVAR (f
, face_alist
);
4053 /* Return a hash code for Lisp string STRING with case ignored. Used
4054 below in computing a hash value for a Lisp face. */
4056 static inline unsigned
4057 hash_string_case_insensitive (Lisp_Object string
)
4059 const unsigned char *s
;
4061 eassert (STRINGP (string
));
4062 for (s
= SDATA (string
); *s
; ++s
)
4063 hash
= (hash
<< 1) ^ tolower (*s
);
4068 /* Return a hash code for face attribute vector V. */
4070 static inline unsigned
4071 lface_hash (Lisp_Object
*v
)
4073 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4074 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4075 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4076 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4077 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4078 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4079 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4080 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4084 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4085 considering charsets/registries). They do if they specify the same
4086 family, point size, weight, width, slant, and font. Both
4087 LFACE1 and LFACE2 must be fully-specified. */
4090 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4092 eassert (lface_fully_specified_p (lface1
)
4093 && lface_fully_specified_p (lface2
));
4094 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4095 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4096 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4097 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4098 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4099 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4100 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4101 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4102 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4103 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4104 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4105 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4106 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4107 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4113 /***********************************************************************
4115 ***********************************************************************/
4117 /* Allocate and return a new realized face for Lisp face attribute
4120 static struct face
*
4121 make_realized_face (Lisp_Object
*attr
)
4123 struct face
*face
= xzalloc (sizeof *face
);
4124 face
->ascii_face
= face
;
4125 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4130 /* Free realized face FACE, including its X resources. FACE may
4134 free_realized_face (struct frame
*f
, struct face
*face
)
4138 #ifdef HAVE_WINDOW_SYSTEM
4139 if (FRAME_WINDOW_P (f
))
4141 /* Free fontset of FACE if it is ASCII face. */
4142 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4143 free_face_fontset (f
, face
);
4148 font_done_for_face (f
, face
);
4149 x_free_gc (f
, face
->gc
);
4154 free_face_colors (f
, face
);
4155 x_destroy_bitmap (f
, face
->stipple
);
4157 #endif /* HAVE_WINDOW_SYSTEM */
4164 /* Prepare face FACE for subsequent display on frame F. This
4165 allocated GCs if they haven't been allocated yet or have been freed
4166 by clearing the face cache. */
4169 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4171 #ifdef HAVE_WINDOW_SYSTEM
4172 eassert (FRAME_WINDOW_P (f
));
4177 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4179 xgcv
.foreground
= face
->foreground
;
4180 xgcv
.background
= face
->background
;
4181 #ifdef HAVE_X_WINDOWS
4182 xgcv
.graphics_exposures
= False
;
4186 #ifdef HAVE_X_WINDOWS
4189 xgcv
.fill_style
= FillOpaqueStippled
;
4190 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4191 mask
|= GCFillStyle
| GCStipple
;
4194 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4196 font_prepare_for_face (f
, face
);
4199 #endif /* HAVE_WINDOW_SYSTEM */
4203 /* Returns the `distance' between the colors X and Y. */
4206 color_distance (XColor
*x
, XColor
*y
)
4208 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4209 Quoting from that paper:
4211 This formula has results that are very close to L*u*v* (with the
4212 modified lightness curve) and, more importantly, it is a more even
4213 algorithm: it does not have a range of colors where it suddenly
4214 gives far from optimal results.
4216 See <http://www.compuphase.com/cmetric.htm> for more info. */
4218 long r
= (x
->red
- y
->red
) >> 8;
4219 long g
= (x
->green
- y
->green
) >> 8;
4220 long b
= (x
->blue
- y
->blue
) >> 8;
4221 long r_mean
= (x
->red
+ y
->red
) >> 9;
4224 (((512 + r_mean
) * r
* r
) >> 8)
4226 + (((767 - r_mean
) * b
* b
) >> 8);
4230 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4231 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4232 COLOR1 and COLOR2 may be either strings containing the color name,
4233 or lists of the form (RED GREEN BLUE).
4234 If FRAME is unspecified or nil, the current frame is used. */)
4235 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4238 XColor cdef1
, cdef2
;
4241 frame
= selected_frame
;
4242 CHECK_LIVE_FRAME (frame
);
4245 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4246 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4247 signal_error ("Invalid color", color1
);
4248 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4249 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4250 signal_error ("Invalid color", color2
);
4252 return make_number (color_distance (&cdef1
, &cdef2
));
4256 /***********************************************************************
4258 ***********************************************************************/
4260 /* Return a new face cache for frame F. */
4262 static struct face_cache
*
4263 make_face_cache (struct frame
*f
)
4265 struct face_cache
*c
;
4268 c
= xzalloc (sizeof *c
);
4269 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4270 c
->buckets
= xzalloc (size
);
4272 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4274 c
->menu_face_changed_p
= menu_face_changed_default
;
4279 /* Clear out all graphics contexts for all realized faces, except for
4280 the basic faces. This should be done from time to time just to avoid
4281 keeping too many graphics contexts that are no longer needed. */
4284 clear_face_gcs (struct face_cache
*c
)
4286 if (c
&& FRAME_WINDOW_P (c
->f
))
4288 #ifdef HAVE_WINDOW_SYSTEM
4290 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4292 struct face
*face
= c
->faces_by_id
[i
];
4293 if (face
&& face
->gc
)
4297 font_done_for_face (c
->f
, face
);
4298 x_free_gc (c
->f
, face
->gc
);
4303 #endif /* HAVE_WINDOW_SYSTEM */
4308 /* Free all realized faces in face cache C, including basic faces.
4309 C may be null. If faces are freed, make sure the frame's current
4310 matrix is marked invalid, so that a display caused by an expose
4311 event doesn't try to use faces we destroyed. */
4314 free_realized_faces (struct face_cache
*c
)
4319 struct frame
*f
= c
->f
;
4321 /* We must block input here because we can't process X events
4322 safely while only some faces are freed, or when the frame's
4323 current matrix still references freed faces. */
4326 for (i
= 0; i
< c
->used
; ++i
)
4328 free_realized_face (f
, c
->faces_by_id
[i
]);
4329 c
->faces_by_id
[i
] = NULL
;
4333 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4334 memset (c
->buckets
, 0, size
);
4336 /* Must do a thorough redisplay the next time. Mark current
4337 matrices as invalid because they will reference faces freed
4338 above. This function is also called when a frame is
4339 destroyed. In this case, the root window of F is nil. */
4340 if (WINDOWP (FVAR (f
, root_window
)))
4342 clear_current_matrices (f
);
4343 ++windows_or_buffers_changed
;
4351 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4352 This is done after attributes of a named face have been changed,
4353 because we can't tell which realized faces depend on that face. */
4356 free_all_realized_faces (Lisp_Object frame
)
4361 FOR_EACH_FRAME (rest
, frame
)
4362 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4365 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4369 /* Free face cache C and faces in it, including their X resources. */
4372 free_face_cache (struct face_cache
*c
)
4376 free_realized_faces (c
);
4378 xfree (c
->faces_by_id
);
4384 /* Cache realized face FACE in face cache C. HASH is the hash value
4385 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4386 FACE), insert the new face to the beginning of the collision list
4387 of the face hash table of C. Otherwise, add the new face to the
4388 end of the collision list. This way, lookup_face can quickly find
4389 that a requested face is not cached. */
4392 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4394 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4398 if (face
->ascii_face
!= face
)
4400 struct face
*last
= c
->buckets
[i
];
4411 c
->buckets
[i
] = face
;
4412 face
->prev
= face
->next
= NULL
;
4418 face
->next
= c
->buckets
[i
];
4420 face
->next
->prev
= face
;
4421 c
->buckets
[i
] = face
;
4424 /* Find a free slot in C->faces_by_id and use the index of the free
4425 slot as FACE->id. */
4426 for (i
= 0; i
< c
->used
; ++i
)
4427 if (c
->faces_by_id
[i
] == NULL
)
4432 /* Check that FACE got a unique id. */
4437 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4438 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4444 #endif /* GLYPH_DEBUG */
4446 /* Maybe enlarge C->faces_by_id. */
4449 if (c
->used
== c
->size
)
4450 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4451 sizeof *c
->faces_by_id
);
4455 c
->faces_by_id
[i
] = face
;
4459 /* Remove face FACE from cache C. */
4462 uncache_face (struct face_cache
*c
, struct face
*face
)
4464 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4467 face
->prev
->next
= face
->next
;
4469 c
->buckets
[i
] = face
->next
;
4472 face
->next
->prev
= face
->prev
;
4474 c
->faces_by_id
[face
->id
] = NULL
;
4475 if (face
->id
== c
->used
)
4480 /* Look up a realized face with face attributes ATTR in the face cache
4481 of frame F. The face will be used to display ASCII characters.
4482 Value is the ID of the face found. If no suitable face is found,
4483 realize a new one. */
4486 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4488 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4493 eassert (cache
!= NULL
);
4494 check_lface_attrs (attr
);
4496 /* Look up ATTR in the face cache. */
4497 hash
= lface_hash (attr
);
4498 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4500 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4502 if (face
->ascii_face
!= face
)
4504 /* There's no more ASCII face. */
4508 if (face
->hash
== hash
4509 && lface_equal_p (face
->lface
, attr
))
4513 /* If not found, realize a new face. */
4515 face
= realize_face (cache
, attr
, -1);
4518 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4519 #endif /* GLYPH_DEBUG */
4524 #ifdef HAVE_WINDOW_SYSTEM
4525 /* Look up a realized face that has the same attributes as BASE_FACE
4526 except for the font in the face cache of frame F. If FONT-OBJECT
4527 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4528 the face has no font. Value is the ID of the face found. If no
4529 suitable face is found, realize a new one. */
4532 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4534 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4539 eassert (cache
!= NULL
);
4540 base_face
= base_face
->ascii_face
;
4541 hash
= lface_hash (base_face
->lface
);
4542 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4544 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4546 if (face
->ascii_face
== face
)
4548 if (face
->ascii_face
== base_face
4549 && face
->font
== (NILP (font_object
) ? NULL
4550 : XFONT_OBJECT (font_object
))
4551 && lface_equal_p (face
->lface
, base_face
->lface
))
4555 /* If not found, realize a new face. */
4556 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4559 #endif /* HAVE_WINDOW_SYSTEM */
4561 /* Return the face id of the realized face for named face SYMBOL on
4562 frame F suitable for displaying ASCII characters. Value is -1 if
4563 the face couldn't be determined, which might happen if the default
4564 face isn't realized and cannot be realized. */
4567 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4569 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4570 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4571 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4573 if (default_face
== NULL
)
4575 if (!realize_basic_faces (f
))
4577 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4578 if (default_face
== NULL
)
4579 abort (); /* realize_basic_faces must have set it up */
4582 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4585 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4586 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4588 return lookup_face (f
, attrs
);
4592 /* Return the display face-id of the basic face whose canonical face-id
4593 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4594 basic face has bee remapped via Vface_remapping_alist. This function is
4595 conservative: if something goes wrong, it will simply return FACE_ID
4596 rather than signal an error. */
4599 lookup_basic_face (struct frame
*f
, int face_id
)
4601 Lisp_Object name
, mapping
;
4602 int remapped_face_id
;
4604 if (NILP (Vface_remapping_alist
))
4605 return face_id
; /* Nothing to do. */
4609 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4610 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4611 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4612 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4613 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4614 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4615 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4616 case BORDER_FACE_ID
: name
= Qborder
; break;
4617 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4618 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4619 case MENU_FACE_ID
: name
= Qmenu
; break;
4622 abort (); /* the caller is supposed to pass us a basic face id */
4625 /* Do a quick scan through Vface_remapping_alist, and return immediately
4626 if there is no remapping for face NAME. This is just an optimization
4627 for the very common no-remapping case. */
4628 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4630 return face_id
; /* Give up. */
4632 /* If there is a remapping entry, lookup the face using NAME, which will
4633 handle the remapping too. */
4634 remapped_face_id
= lookup_named_face (f
, name
, 0);
4635 if (remapped_face_id
< 0)
4636 return face_id
; /* Give up. */
4638 return remapped_face_id
;
4642 /* Return a face for charset ASCII that is like the face with id
4643 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4644 STEPS < 0 means larger. Value is the id of the face. */
4647 smaller_face (struct frame
*f
, int face_id
, int steps
)
4649 #ifdef HAVE_WINDOW_SYSTEM
4651 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4652 int pt
, last_pt
, last_height
;
4655 struct face
*new_face
;
4657 /* If not called for an X frame, just return the original face. */
4658 if (FRAME_TERMCAP_P (f
))
4661 /* Try in increments of 1/2 pt. */
4662 delta
= steps
< 0 ? 5 : -5;
4663 steps
= eabs (steps
);
4665 face
= FACE_FROM_ID (f
, face_id
);
4666 memcpy (attrs
, face
->lface
, sizeof attrs
);
4667 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4668 new_face_id
= face_id
;
4669 last_height
= FONT_HEIGHT (face
->font
);
4673 /* Give up if we cannot find a font within 10pt. */
4674 && eabs (last_pt
- pt
) < 100)
4676 /* Look up a face for a slightly smaller/larger font. */
4678 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4679 new_face_id
= lookup_face (f
, attrs
);
4680 new_face
= FACE_FROM_ID (f
, new_face_id
);
4682 /* If height changes, count that as one step. */
4683 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4684 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4687 last_height
= FONT_HEIGHT (new_face
->font
);
4694 #else /* not HAVE_WINDOW_SYSTEM */
4698 #endif /* not HAVE_WINDOW_SYSTEM */
4702 /* Return a face for charset ASCII that is like the face with id
4703 FACE_ID on frame F, but has height HEIGHT. */
4706 face_with_height (struct frame
*f
, int face_id
, int height
)
4708 #ifdef HAVE_WINDOW_SYSTEM
4710 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4712 if (FRAME_TERMCAP_P (f
)
4716 face
= FACE_FROM_ID (f
, face_id
);
4717 memcpy (attrs
, face
->lface
, sizeof attrs
);
4718 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4719 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4720 face_id
= lookup_face (f
, attrs
);
4721 #endif /* HAVE_WINDOW_SYSTEM */
4727 /* Return the face id of the realized face for named face SYMBOL on
4728 frame F suitable for displaying ASCII characters, and use
4729 attributes of the face FACE_ID for attributes that aren't
4730 completely specified by SYMBOL. This is like lookup_named_face,
4731 except that the default attributes come from FACE_ID, not from the
4732 default face. FACE_ID is assumed to be already realized. */
4735 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4738 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4739 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4740 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4745 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4748 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4749 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4750 return lookup_face (f
, attrs
);
4753 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4754 Sface_attributes_as_vector
, 1, 1, 0,
4755 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4759 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4761 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4768 /***********************************************************************
4769 Face capability testing
4770 ***********************************************************************/
4773 /* If the distance (as returned by color_distance) between two colors is
4774 less than this, then they are considered the same, for determining
4775 whether a color is supported or not. The range of values is 0-65535. */
4777 #define TTY_SAME_COLOR_THRESHOLD 10000
4779 #ifdef HAVE_WINDOW_SYSTEM
4781 /* Return non-zero if all the face attributes in ATTRS are supported
4782 on the window-system frame F.
4784 The definition of `supported' is somewhat heuristic, but basically means
4785 that a face containing all the attributes in ATTRS, when merged with the
4786 default face for display, can be represented in a way that's
4788 \(1) different in appearance than the default face, and
4789 \(2) `close in spirit' to what the attributes specify, if not exact. */
4792 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4793 struct face
*def_face
)
4795 Lisp_Object
*def_attrs
= def_face
->lface
;
4797 /* Check that other specified attributes are different that the default
4799 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4800 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4801 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4802 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4803 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4804 def_attrs
[LFACE_INVERSE_INDEX
]))
4805 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4806 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4807 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4808 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4809 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4810 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4811 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4812 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4813 def_attrs
[LFACE_STIPPLE_INDEX
]))
4814 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4815 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4816 def_attrs
[LFACE_OVERLINE_INDEX
]))
4817 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4818 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4819 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4820 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4821 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4822 def_attrs
[LFACE_BOX_INDEX
])))
4825 /* Check font-related attributes, as those are the most commonly
4826 "unsupported" on a window-system (because of missing fonts). */
4827 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4828 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4829 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4830 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4831 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4832 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4836 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4839 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4841 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4843 face_id
= lookup_face (f
, merged_attrs
);
4844 face
= FACE_FROM_ID (f
, face_id
);
4847 error ("Cannot make face");
4849 /* If the font is the same, or no font is found, then not
4851 if (face
->font
== def_face
->font
4854 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4855 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4859 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4860 || face
->font
->driver
->case_sensitive
)
4862 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4863 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4864 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4865 s2
, make_number (0), Qnil
, Qt
), Qt
))
4871 /* Everything checks out, this face is supported. */
4875 #endif /* HAVE_WINDOW_SYSTEM */
4877 /* Return non-zero if all the face attributes in ATTRS are supported
4880 The definition of `supported' is somewhat heuristic, but basically means
4881 that a face containing all the attributes in ATTRS, when merged
4882 with the default face for display, can be represented in a way that's
4884 \(1) different in appearance than the default face, and
4885 \(2) `close in spirit' to what the attributes specify, if not exact.
4887 Point (2) implies that a `:weight black' attribute will be satisfied
4888 by any terminal that can display bold, and a `:foreground "yellow"' as
4889 long as the terminal can display a yellowish color, but `:slant italic'
4890 will _not_ be satisfied by the tty display code's automatic
4891 substitution of a `dim' face for italic. */
4894 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4895 struct face
*def_face
)
4898 Lisp_Object val
, fg
, bg
;
4899 XColor fg_tty_color
, fg_std_color
;
4900 XColor bg_tty_color
, bg_std_color
;
4901 unsigned test_caps
= 0;
4902 Lisp_Object
*def_attrs
= def_face
->lface
;
4904 /* First check some easy-to-check stuff; ttys support none of the
4905 following attributes, so we can just return false if any are requested
4906 (even if `nominal' values are specified, we should still return false,
4907 as that will be the same value that the default face uses). We
4908 consider :slant unsupportable on ttys, even though the face code
4909 actually `fakes' them using a dim attribute if possible. This is
4910 because the faked result is too different from what the face
4912 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4913 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4914 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4915 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4916 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4917 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4918 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4919 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4922 /* Test for terminal `capabilities' (non-color character attributes). */
4924 /* font weight (bold/dim) */
4925 val
= attrs
[LFACE_WEIGHT_INDEX
];
4926 if (!UNSPECIFIEDP (val
)
4927 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4929 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4933 if (def_weight
> 100)
4934 return 0; /* same as default */
4935 test_caps
= TTY_CAP_BOLD
;
4937 else if (weight
< 100)
4939 if (def_weight
< 100)
4940 return 0; /* same as default */
4941 test_caps
= TTY_CAP_DIM
;
4943 else if (def_weight
== 100)
4944 return 0; /* same as default */
4948 val
= attrs
[LFACE_SLANT_INDEX
];
4949 if (!UNSPECIFIEDP (val
)
4950 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4952 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4953 if (slant
== 100 || slant
== def_slant
)
4954 return 0; /* same as default */
4956 test_caps
|= TTY_CAP_ITALIC
;
4960 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4961 if (!UNSPECIFIEDP (val
))
4964 return 0; /* ttys can't use colored underlines */
4965 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4966 return 0; /* same as default */
4968 test_caps
|= TTY_CAP_UNDERLINE
;
4972 val
= attrs
[LFACE_INVERSE_INDEX
];
4973 if (!UNSPECIFIEDP (val
))
4975 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4976 return 0; /* same as default */
4978 test_caps
|= TTY_CAP_INVERSE
;
4982 /* Color testing. */
4984 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4985 we use them when calling `tty_capable_p' below, even if the face
4986 specifies no colors. */
4987 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4988 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4990 /* Check if foreground color is close enough. */
4991 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4994 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4996 if (face_attr_equal_p (fg
, def_fg
))
4997 return 0; /* same as default */
4998 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4999 return 0; /* not a valid color */
5000 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5001 > TTY_SAME_COLOR_THRESHOLD
)
5002 return 0; /* displayed color is too different */
5004 /* Make sure the color is really different than the default. */
5006 XColor def_fg_color
;
5007 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5008 && (color_distance (&fg_tty_color
, &def_fg_color
)
5009 <= TTY_SAME_COLOR_THRESHOLD
))
5014 /* Check if background color is close enough. */
5015 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5018 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5020 if (face_attr_equal_p (bg
, def_bg
))
5021 return 0; /* same as default */
5022 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5023 return 0; /* not a valid color */
5024 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5025 > TTY_SAME_COLOR_THRESHOLD
)
5026 return 0; /* displayed color is too different */
5028 /* Make sure the color is really different than the default. */
5030 XColor def_bg_color
;
5031 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5032 && (color_distance (&bg_tty_color
, &def_bg_color
)
5033 <= TTY_SAME_COLOR_THRESHOLD
))
5038 /* If both foreground and background are requested, see if the
5039 distance between them is OK. We just check to see if the distance
5040 between the tty's foreground and background is close enough to the
5041 distance between the standard foreground and background. */
5042 if (STRINGP (fg
) && STRINGP (bg
))
5045 = (color_distance (&fg_std_color
, &bg_std_color
)
5046 - color_distance (&fg_tty_color
, &bg_tty_color
));
5047 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5048 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5053 /* See if the capabilities we selected above are supported, with the
5055 if (test_caps
!= 0 &&
5056 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
5057 bg_tty_color
.pixel
))
5061 /* Hmmm, everything checks out, this terminal must support this face. */
5066 DEFUN ("display-supports-face-attributes-p",
5067 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5069 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5070 The optional argument DISPLAY can be a display name, a frame, or
5071 nil (meaning the selected frame's display).
5073 The definition of `supported' is somewhat heuristic, but basically means
5074 that a face containing all the attributes in ATTRIBUTES, when merged
5075 with the default face for display, can be represented in a way that's
5077 \(1) different in appearance than the default face, and
5078 \(2) `close in spirit' to what the attributes specify, if not exact.
5080 Point (2) implies that a `:weight black' attribute will be satisfied by
5081 any display that can display bold, and a `:foreground \"yellow\"' as long
5082 as it can display a yellowish color, but `:slant italic' will _not_ be
5083 satisfied by the tty display code's automatic substitution of a `dim'
5084 face for italic. */)
5085 (Lisp_Object attributes
, Lisp_Object display
)
5087 int supports
= 0, i
;
5090 struct face
*def_face
;
5091 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5093 if (noninteractive
|| !initialized
)
5094 /* We may not be able to access low-level face information in batch
5095 mode, or before being dumped, and this function is not going to
5096 be very useful in those cases anyway, so just give up. */
5100 frame
= selected_frame
;
5101 else if (FRAMEP (display
))
5105 /* Find any frame on DISPLAY. */
5106 Lisp_Object fl_tail
;
5109 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5111 frame
= XCAR (fl_tail
);
5112 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5113 FVAR (XFRAME (frame
), param_alist
))),
5119 CHECK_LIVE_FRAME (frame
);
5122 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5123 attrs
[i
] = Qunspecified
;
5124 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5126 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5127 if (def_face
== NULL
)
5129 if (! realize_basic_faces (f
))
5130 error ("Cannot realize default face");
5131 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5132 if (def_face
== NULL
)
5133 abort (); /* realize_basic_faces must have set it up */
5136 /* Dispatch to the appropriate handler. */
5137 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5138 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5139 #ifdef HAVE_WINDOW_SYSTEM
5141 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5144 return supports
? Qt
: Qnil
;
5148 /***********************************************************************
5150 ***********************************************************************/
5152 DEFUN ("internal-set-font-selection-order",
5153 Finternal_set_font_selection_order
,
5154 Sinternal_set_font_selection_order
, 1, 1, 0,
5155 doc
: /* Set font selection order for face font selection to ORDER.
5156 ORDER must be a list of length 4 containing the symbols `:width',
5157 `:height', `:weight', and `:slant'. Face attributes appearing
5158 first in ORDER are matched first, e.g. if `:height' appears before
5159 `:weight' in ORDER, font selection first tries to find a font with
5160 a suitable height, and then tries to match the font weight.
5166 int indices
[DIM (font_sort_order
)];
5169 memset (indices
, 0, sizeof indices
);
5173 CONSP (list
) && i
< DIM (indices
);
5174 list
= XCDR (list
), ++i
)
5176 Lisp_Object attr
= XCAR (list
);
5179 if (EQ (attr
, QCwidth
))
5181 else if (EQ (attr
, QCheight
))
5182 xlfd
= XLFD_POINT_SIZE
;
5183 else if (EQ (attr
, QCweight
))
5185 else if (EQ (attr
, QCslant
))
5190 if (indices
[i
] != 0)
5195 if (!NILP (list
) || i
!= DIM (indices
))
5196 signal_error ("Invalid font sort order", order
);
5197 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5198 if (indices
[i
] == 0)
5199 signal_error ("Invalid font sort order", order
);
5201 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5203 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5204 free_all_realized_faces (Qnil
);
5207 font_update_sort_order (font_sort_order
);
5213 DEFUN ("internal-set-alternative-font-family-alist",
5214 Finternal_set_alternative_font_family_alist
,
5215 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5216 doc
: /* Define alternative font families to try in face font selection.
5217 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5218 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5219 be found. Value is ALIST. */)
5222 Lisp_Object entry
, tail
, tail2
;
5225 alist
= Fcopy_sequence (alist
);
5226 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5228 entry
= XCAR (tail
);
5230 entry
= Fcopy_sequence (entry
);
5231 XSETCAR (tail
, entry
);
5232 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5233 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5236 Vface_alternative_font_family_alist
= alist
;
5237 free_all_realized_faces (Qnil
);
5242 DEFUN ("internal-set-alternative-font-registry-alist",
5243 Finternal_set_alternative_font_registry_alist
,
5244 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5245 doc
: /* Define alternative font registries to try in face font selection.
5246 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5247 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5248 be found. Value is ALIST. */)
5251 Lisp_Object entry
, tail
, tail2
;
5254 alist
= Fcopy_sequence (alist
);
5255 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5257 entry
= XCAR (tail
);
5259 entry
= Fcopy_sequence (entry
);
5260 XSETCAR (tail
, entry
);
5261 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5262 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5264 Vface_alternative_font_registry_alist
= alist
;
5265 free_all_realized_faces (Qnil
);
5270 #ifdef HAVE_WINDOW_SYSTEM
5272 /* Return the fontset id of the base fontset name or alias name given
5273 by the fontset attribute of ATTRS. Value is -1 if the fontset
5274 attribute of ATTRS doesn't name a fontset. */
5277 face_fontset (Lisp_Object
*attrs
)
5281 name
= attrs
[LFACE_FONTSET_INDEX
];
5282 if (!STRINGP (name
))
5284 return fs_query_fontset (name
, 0);
5287 #endif /* HAVE_WINDOW_SYSTEM */
5291 /***********************************************************************
5293 ***********************************************************************/
5295 /* Realize basic faces on frame F. Value is zero if frame parameters
5296 of F don't contain enough information needed to realize the default
5300 realize_basic_faces (struct frame
*f
)
5303 ptrdiff_t count
= SPECPDL_INDEX ();
5305 /* Block input here so that we won't be surprised by an X expose
5306 event, for instance, without having the faces set up. */
5308 specbind (Qscalable_fonts_allowed
, Qt
);
5310 if (realize_default_face (f
))
5312 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5313 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5314 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5315 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5316 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5317 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5318 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5319 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5320 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5321 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5322 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5324 /* Reflect changes in the `menu' face in menu bars. */
5325 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5327 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5328 #ifdef USE_X_TOOLKIT
5329 if (FRAME_WINDOW_P (f
))
5330 x_update_menu_appearance (f
);
5337 unbind_to (count
, Qnil
);
5343 /* Realize the default face on frame F. If the face is not fully
5344 specified, make it fully-specified. Attributes of the default face
5345 that are not explicitly specified are taken from frame parameters. */
5348 realize_default_face (struct frame
*f
)
5350 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5352 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5355 /* If the `default' face is not yet known, create it. */
5356 lface
= lface_from_face_name (f
, Qdefault
, 0);
5360 XSETFRAME (frame
, f
);
5361 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5364 #ifdef HAVE_WINDOW_SYSTEM
5365 if (FRAME_WINDOW_P (f
))
5367 Lisp_Object font_object
;
5369 XSETFONT (font_object
, FRAME_FONT (f
));
5370 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5371 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5372 f
->default_face_done_p
= 1;
5374 #endif /* HAVE_WINDOW_SYSTEM */
5376 if (!FRAME_WINDOW_P (f
))
5378 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5379 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5380 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5381 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5382 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5383 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5384 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5385 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5386 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5387 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5390 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5391 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5393 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5394 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5396 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5397 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5399 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5400 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5402 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5403 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5405 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5407 /* This function is called so early that colors are not yet
5408 set in the frame parameter list. */
5409 Lisp_Object color
= Fassq (Qforeground_color
, FVAR (f
, param_alist
));
5411 if (CONSP (color
) && STRINGP (XCDR (color
)))
5412 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5413 else if (FRAME_WINDOW_P (f
))
5415 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5416 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5421 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5423 /* This function is called so early that colors are not yet
5424 set in the frame parameter list. */
5425 Lisp_Object color
= Fassq (Qbackground_color
, FVAR (f
, param_alist
));
5426 if (CONSP (color
) && STRINGP (XCDR (color
)))
5427 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5428 else if (FRAME_WINDOW_P (f
))
5430 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5431 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5436 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5437 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5439 /* Realize the face; it must be fully-specified now. */
5440 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5441 check_lface (lface
);
5442 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5443 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5445 #ifdef HAVE_WINDOW_SYSTEM
5446 #ifdef HAVE_X_WINDOWS
5447 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5449 /* This can happen when making a frame on a display that does
5450 not support the default font. */
5454 /* Otherwise, the font specified for the frame was not
5455 acceptable as a font for the default face (perhaps because
5456 auto-scaled fonts are rejected), so we must adjust the frame
5458 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5460 #endif /* HAVE_X_WINDOWS */
5461 #endif /* HAVE_WINDOW_SYSTEM */
5466 /* Realize basic faces other than the default face in face cache C.
5467 SYMBOL is the face name, ID is the face id the realized face must
5468 have. The default face must have been realized already. */
5471 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5473 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5474 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5475 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5476 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5478 /* The default face must exist and be fully specified. */
5479 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5480 check_lface_attrs (attrs
);
5481 eassert (lface_fully_specified_p (attrs
));
5483 /* If SYMBOL isn't know as a face, create it. */
5487 XSETFRAME (frame
, f
);
5488 lface
= Finternal_make_lisp_face (symbol
, frame
);
5491 /* Merge SYMBOL's face with the default face. */
5492 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5493 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5495 /* Realize the face. */
5496 realize_face (c
, attrs
, id
);
5500 /* Realize the fully-specified face with attributes ATTRS in face
5501 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5502 non-negative, it is an ID of face to remove before caching the new
5503 face. Value is a pointer to the newly created realized face. */
5505 static struct face
*
5506 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5510 /* LFACE must be fully specified. */
5511 eassert (cache
!= NULL
);
5512 check_lface_attrs (attrs
);
5514 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5516 /* Remove the former face. */
5517 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5518 uncache_face (cache
, former_face
);
5519 free_realized_face (cache
->f
, former_face
);
5520 SET_FRAME_GARBAGED (cache
->f
);
5523 if (FRAME_WINDOW_P (cache
->f
))
5524 face
= realize_x_face (cache
, attrs
);
5525 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5526 face
= realize_tty_face (cache
, attrs
);
5527 else if (FRAME_INITIAL_P (cache
->f
))
5529 /* Create a dummy face. */
5530 face
= make_realized_face (attrs
);
5535 /* Insert the new face. */
5536 cache_face (cache
, face
, lface_hash (attrs
));
5541 #ifdef HAVE_WINDOW_SYSTEM
5542 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5543 same attributes as BASE_FACE except for the font on frame F.
5544 FONT-OBJECT may be nil, in which case, realized a face of
5547 static struct face
*
5548 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5549 struct face
*base_face
)
5551 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5554 face
= xmalloc (sizeof *face
);
5559 = (! NILP (font_object
)
5560 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5561 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5563 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5564 face
->colors_copied_bitwise_p
= 1;
5565 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5568 cache_face (cache
, face
, face
->hash
);
5572 #endif /* HAVE_WINDOW_SYSTEM */
5575 /* Realize the fully-specified face with attributes ATTRS in face
5576 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5577 the new face doesn't share font with the default face, a fontname
5578 is allocated from the heap and set in `font_name' of the new face,
5579 but it is not yet loaded here. Value is a pointer to the newly
5580 created realized face. */
5582 static struct face
*
5583 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5585 struct face
*face
= NULL
;
5586 #ifdef HAVE_WINDOW_SYSTEM
5587 struct face
*default_face
;
5589 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5591 eassert (FRAME_WINDOW_P (cache
->f
));
5593 /* Allocate a new realized face. */
5594 face
= make_realized_face (attrs
);
5595 face
->ascii_face
= face
;
5599 /* Determine the font to use. Most of the time, the font will be
5600 the same as the font of the default face, so try that first. */
5601 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5603 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5605 face
->font
= default_face
->font
;
5607 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5611 /* If the face attribute ATTRS specifies a fontset, use it as
5612 the base of a new realized fontset. Otherwise, use the same
5613 base fontset as of the default face. The base determines
5614 registry and encoding of a font. It may also determine
5615 foundry and family. The other fields of font name pattern
5616 are constructed from ATTRS. */
5617 int fontset
= face_fontset (attrs
);
5619 /* If we are realizing the default face, ATTRS should specify a
5620 fontset. In other words, if FONTSET is -1, we are not
5621 realizing the default face, thus the default face should have
5622 already been realized. */
5626 fontset
= default_face
->fontset
;
5630 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5631 attrs
[LFACE_FONT_INDEX
]
5632 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5633 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5635 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5636 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5646 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5647 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5648 face
->overstrike
= 1;
5650 /* Load colors, and set remaining attributes. */
5652 load_face_colors (f
, face
, attrs
);
5655 box
= attrs
[LFACE_BOX_INDEX
];
5658 /* A simple box of line width 1 drawn in color given by
5660 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5662 face
->box
= FACE_SIMPLE_BOX
;
5663 face
->box_line_width
= 1;
5665 else if (INTEGERP (box
))
5667 /* Simple box of specified line width in foreground color of the
5669 eassert (XINT (box
) != 0);
5670 face
->box
= FACE_SIMPLE_BOX
;
5671 face
->box_line_width
= XINT (box
);
5672 face
->box_color
= face
->foreground
;
5673 face
->box_color_defaulted_p
= 1;
5675 else if (CONSP (box
))
5677 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5678 being one of `raised' or `sunken'. */
5679 face
->box
= FACE_SIMPLE_BOX
;
5680 face
->box_color
= face
->foreground
;
5681 face
->box_color_defaulted_p
= 1;
5682 face
->box_line_width
= 1;
5686 Lisp_Object keyword
, value
;
5688 keyword
= XCAR (box
);
5696 if (EQ (keyword
, QCline_width
))
5698 if (INTEGERP (value
) && XINT (value
) != 0)
5699 face
->box_line_width
= XINT (value
);
5701 else if (EQ (keyword
, QCcolor
))
5703 if (STRINGP (value
))
5705 face
->box_color
= load_color (f
, face
, value
,
5707 face
->use_box_color_for_shadows_p
= 1;
5710 else if (EQ (keyword
, QCstyle
))
5712 if (EQ (value
, Qreleased_button
))
5713 face
->box
= FACE_RAISED_BOX
;
5714 else if (EQ (value
, Qpressed_button
))
5715 face
->box
= FACE_SUNKEN_BOX
;
5720 /* Text underline, overline, strike-through. */
5722 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5723 if (EQ (underline
, Qt
))
5725 /* Use default color (same as foreground color). */
5726 face
->underline_p
= 1;
5727 face
->underline_type
= FACE_UNDER_LINE
;
5728 face
->underline_defaulted_p
= 1;
5729 face
->underline_color
= 0;
5731 else if (STRINGP (underline
))
5733 /* Use specified color. */
5734 face
->underline_p
= 1;
5735 face
->underline_type
= FACE_UNDER_LINE
;
5736 face
->underline_defaulted_p
= 0;
5737 face
->underline_color
5738 = load_color (f
, face
, underline
,
5739 LFACE_UNDERLINE_INDEX
);
5741 else if (NILP (underline
))
5743 face
->underline_p
= 0;
5744 face
->underline_defaulted_p
= 0;
5745 face
->underline_color
= 0;
5747 else if (CONSP (underline
))
5749 /* `(:color COLOR :style STYLE)'.
5750 STYLE being one of `line' or `wave'. */
5751 face
->underline_p
= 1;
5752 face
->underline_color
= 0;
5753 face
->underline_defaulted_p
= 1;
5754 face
->underline_type
= FACE_UNDER_LINE
;
5756 while (CONSP (underline
))
5758 Lisp_Object keyword
, value
;
5760 keyword
= XCAR (underline
);
5761 underline
= XCDR (underline
);
5763 if (!CONSP (underline
))
5765 value
= XCAR (underline
);
5766 underline
= XCDR (underline
);
5768 if (EQ (keyword
, QCcolor
))
5770 if (EQ (value
, Qforeground_color
))
5772 face
->underline_defaulted_p
= 1;
5773 face
->underline_color
= 0;
5775 else if (STRINGP (value
))
5777 face
->underline_defaulted_p
= 0;
5778 face
->underline_color
= load_color (f
, face
, value
,
5779 LFACE_UNDERLINE_INDEX
);
5782 else if (EQ (keyword
, QCstyle
))
5784 if (EQ (value
, Qline
))
5785 face
->underline_type
= FACE_UNDER_LINE
;
5786 else if (EQ (value
, Qwave
))
5787 face
->underline_type
= FACE_UNDER_WAVE
;
5792 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5793 if (STRINGP (overline
))
5795 face
->overline_color
5796 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5797 LFACE_OVERLINE_INDEX
);
5798 face
->overline_p
= 1;
5800 else if (EQ (overline
, Qt
))
5802 face
->overline_color
= face
->foreground
;
5803 face
->overline_color_defaulted_p
= 1;
5804 face
->overline_p
= 1;
5807 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5808 if (STRINGP (strike_through
))
5810 face
->strike_through_color
5811 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5812 LFACE_STRIKE_THROUGH_INDEX
);
5813 face
->strike_through_p
= 1;
5815 else if (EQ (strike_through
, Qt
))
5817 face
->strike_through_color
= face
->foreground
;
5818 face
->strike_through_color_defaulted_p
= 1;
5819 face
->strike_through_p
= 1;
5822 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5823 if (!NILP (stipple
))
5824 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5825 #endif /* HAVE_WINDOW_SYSTEM */
5831 /* Map a specified color of face FACE on frame F to a tty color index.
5832 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5833 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5834 default foreground/background colors. */
5837 map_tty_color (struct frame
*f
, struct face
*face
,
5838 enum lface_attribute_index idx
, int *defaulted
)
5840 Lisp_Object frame
, color
, def
;
5841 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5842 unsigned long default_pixel
=
5843 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5844 unsigned long pixel
= default_pixel
;
5846 unsigned long default_other_pixel
=
5847 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5850 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5852 XSETFRAME (frame
, f
);
5853 color
= face
->lface
[idx
];
5857 && CONSP (Vtty_defined_color_alist
)
5858 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5861 /* Associations in tty-defined-color-alist are of the form
5862 (NAME INDEX R G B). We need the INDEX part. */
5863 pixel
= XINT (XCAR (XCDR (def
)));
5866 if (pixel
== default_pixel
&& STRINGP (color
))
5868 pixel
= load_color (f
, face
, color
, idx
);
5871 /* If the foreground of the default face is the default color,
5872 use the foreground color defined by the frame. */
5873 if (FRAME_MSDOS_P (f
))
5875 if (pixel
== default_pixel
5876 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5879 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5881 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5882 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5885 else if (pixel
== default_other_pixel
)
5888 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5890 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5891 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5899 face
->foreground
= pixel
;
5901 face
->background
= pixel
;
5905 /* Realize the fully-specified face with attributes ATTRS in face
5906 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5907 Value is a pointer to the newly created realized face. */
5909 static struct face
*
5910 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5914 int face_colors_defaulted
= 0;
5915 struct frame
*f
= cache
->f
;
5917 /* Frame must be a termcap frame. */
5918 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5920 /* Allocate a new realized face. */
5921 face
= make_realized_face (attrs
);
5923 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5926 /* Map face attributes to TTY appearances. */
5927 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5928 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5930 face
->tty_bold_p
= 1;
5932 face
->tty_italic_p
= 1;
5933 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5934 face
->tty_underline_p
= 1;
5935 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5936 face
->tty_reverse_p
= 1;
5938 /* Map color names to color indices. */
5939 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5940 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5942 /* Swap colors if face is inverse-video. If the colors are taken
5943 from the frame colors, they are already inverted, since the
5944 frame-creation function calls x-handle-reverse-video. */
5945 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5947 unsigned long tem
= face
->foreground
;
5948 face
->foreground
= face
->background
;
5949 face
->background
= tem
;
5952 if (tty_suppress_bold_inverse_default_colors_p
5954 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5955 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5956 face
->tty_bold_p
= 0;
5962 DEFUN ("tty-suppress-bold-inverse-default-colors",
5963 Ftty_suppress_bold_inverse_default_colors
,
5964 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5965 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5966 SUPPRESS non-nil means suppress it.
5967 This affects bold faces on TTYs whose foreground is the default background
5968 color of the display and whose background is the default foreground color.
5969 For such faces, the bold face attribute is ignored if this variable
5971 (Lisp_Object suppress
)
5973 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5974 ++face_change_count
;
5980 /***********************************************************************
5982 ***********************************************************************/
5984 /* Return the ID of the face to use to display character CH with face
5985 property PROP on frame F in current_buffer. */
5988 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5992 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5997 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5998 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6002 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6003 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6004 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6005 merge_face_ref (f
, prop
, attrs
, 1, 0);
6006 face_id
= lookup_face (f
, attrs
);
6012 /* Return the face ID associated with buffer position POS for
6013 displaying ASCII characters. Return in *ENDPTR the position at
6014 which a different face is needed, as far as text properties and
6015 overlays are concerned. W is a window displaying current_buffer.
6017 REGION_BEG, REGION_END delimit the region, so it can be
6020 LIMIT is a position not to scan beyond. That is to limit the time
6021 this function can take.
6023 If MOUSE is non-zero, use the character's mouse-face, not its face.
6025 BASE_FACE_ID, if non-negative, specifies a base face id to use
6026 instead of DEFAULT_FACE_ID.
6028 The face returned is suitable for displaying ASCII characters. */
6031 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
6032 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6033 ptrdiff_t *endptr
, ptrdiff_t limit
,
6034 int mouse
, int base_face_id
)
6036 struct frame
*f
= XFRAME (WVAR (w
, frame
));
6037 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6038 Lisp_Object prop
, position
;
6039 ptrdiff_t i
, noverlays
;
6040 Lisp_Object
*overlay_vec
;
6042 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6043 Lisp_Object limit1
, end
;
6044 struct face
*default_face
;
6046 /* W must display the current buffer. We could write this function
6047 to use the frame and buffer of W, but right now it doesn't. */
6048 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6050 XSETFASTINT (position
, pos
);
6053 if (pos
< region_beg
&& region_beg
< endpos
)
6054 endpos
= region_beg
;
6056 /* Get the `face' or `mouse_face' text property at POS, and
6057 determine the next position at which the property changes. */
6058 prop
= Fget_text_property (position
, propname
, WVAR (w
, buffer
));
6059 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6060 end
= Fnext_single_property_change (position
, propname
, WVAR (w
, buffer
), limit1
);
6062 endpos
= XINT (end
);
6064 /* Look at properties from overlays. */
6066 ptrdiff_t next_overlay
;
6068 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6069 if (next_overlay
< endpos
)
6070 endpos
= next_overlay
;
6078 if (base_face_id
>= 0)
6079 face_id
= base_face_id
;
6080 else if (NILP (Vface_remapping_alist
))
6081 face_id
= DEFAULT_FACE_ID
;
6083 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
6085 default_face
= FACE_FROM_ID (f
, face_id
);
6088 /* Optimize common cases where we can use the default face. */
6091 && !(pos
>= region_beg
&& pos
< region_end
))
6092 return default_face
->id
;
6094 /* Begin with attributes from the default face. */
6095 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6097 /* Merge in attributes specified via text properties. */
6099 merge_face_ref (f
, prop
, attrs
, 1, 0);
6101 /* Now merge the overlay data. */
6102 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6103 for (i
= 0; i
< noverlays
; i
++)
6108 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6110 merge_face_ref (f
, prop
, attrs
, 1, 0);
6112 oend
= OVERLAY_END (overlay_vec
[i
]);
6113 oendpos
= OVERLAY_POSITION (oend
);
6114 if (oendpos
< endpos
)
6118 /* If in the region, merge in the region face. */
6119 if (pos
>= region_beg
&& pos
< region_end
)
6121 merge_named_face (f
, Qregion
, attrs
, 0);
6123 if (region_end
< endpos
)
6124 endpos
= region_end
;
6129 /* Look up a realized face with the given face attributes,
6130 or realize a new one for ASCII characters. */
6131 return lookup_face (f
, attrs
);
6134 /* Return the face ID at buffer position POS for displaying ASCII
6135 characters associated with overlay strings for overlay OVERLAY.
6137 Like face_at_buffer_position except for OVERLAY. Currently it
6138 simply disregards the `face' properties of all overlays. */
6141 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6142 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6143 ptrdiff_t *endptr
, ptrdiff_t limit
,
6144 int mouse
, Lisp_Object overlay
)
6146 struct frame
*f
= XFRAME (WVAR (w
, frame
));
6147 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6148 Lisp_Object prop
, position
;
6150 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6151 Lisp_Object limit1
, end
;
6152 struct face
*default_face
;
6154 /* W must display the current buffer. We could write this function
6155 to use the frame and buffer of W, but right now it doesn't. */
6156 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6158 XSETFASTINT (position
, pos
);
6161 if (pos
< region_beg
&& region_beg
< endpos
)
6162 endpos
= region_beg
;
6164 /* Get the `face' or `mouse_face' text property at POS, and
6165 determine the next position at which the property changes. */
6166 prop
= Fget_text_property (position
, propname
, WVAR (w
, buffer
));
6167 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6168 end
= Fnext_single_property_change (position
, propname
, WVAR (w
, buffer
), limit1
);
6170 endpos
= XINT (end
);
6174 /* Optimize common case where we can use the default face. */
6176 && !(pos
>= region_beg
&& pos
< region_end
)
6177 && NILP (Vface_remapping_alist
))
6178 return DEFAULT_FACE_ID
;
6180 /* Begin with attributes from the default face. */
6181 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6182 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6184 /* Merge in attributes specified via text properties. */
6186 merge_face_ref (f
, prop
, attrs
, 1, 0);
6188 /* If in the region, merge in the region face. */
6189 if (pos
>= region_beg
&& pos
< region_end
)
6191 merge_named_face (f
, Qregion
, attrs
, 0);
6193 if (region_end
< endpos
)
6194 endpos
= region_end
;
6199 /* Look up a realized face with the given face attributes,
6200 or realize a new one for ASCII characters. */
6201 return lookup_face (f
, attrs
);
6205 /* Compute the face at character position POS in Lisp string STRING on
6206 window W, for ASCII characters.
6208 If STRING is an overlay string, it comes from position BUFPOS in
6209 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6210 not an overlay string. W must display the current buffer.
6211 REGION_BEG and REGION_END give the start and end positions of the
6212 region; both are -1 if no region is visible.
6214 BASE_FACE_ID is the id of a face to merge with. For strings coming
6215 from overlays or the `display' property it is the face at BUFPOS.
6217 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6219 Set *ENDPTR to the next position where to check for faces in
6220 STRING; -1 if the face is constant from POS to the end of the
6223 Value is the id of the face to use. The face returned is suitable
6224 for displaying ASCII characters. */
6227 face_at_string_position (struct window
*w
, Lisp_Object string
,
6228 ptrdiff_t pos
, ptrdiff_t bufpos
,
6229 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6230 ptrdiff_t *endptr
, enum face_id base_face_id
,
6233 Lisp_Object prop
, position
, end
, limit
;
6234 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6235 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6236 struct face
*base_face
;
6237 int multibyte_p
= STRING_MULTIBYTE (string
);
6238 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6240 /* Get the value of the face property at the current position within
6241 STRING. Value is nil if there is no face property. */
6242 XSETFASTINT (position
, pos
);
6243 prop
= Fget_text_property (position
, prop_name
, string
);
6245 /* Get the next position at which to check for faces. Value of end
6246 is nil if face is constant all the way to the end of the string.
6247 Otherwise it is a string position where to check faces next.
6248 Limit is the maximum position up to which to check for property
6249 changes in Fnext_single_property_change. Strings are usually
6250 short, so set the limit to the end of the string. */
6251 XSETFASTINT (limit
, SCHARS (string
));
6252 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6254 *endptr
= XFASTINT (end
);
6258 base_face
= FACE_FROM_ID (f
, base_face_id
);
6259 eassert (base_face
);
6261 /* Optimize the default case that there is no face property and we
6262 are not in the region. */
6264 && (base_face_id
!= DEFAULT_FACE_ID
6265 /* BUFPOS <= 0 means STRING is not an overlay string, so
6266 that the region doesn't have to be taken into account. */
6268 || bufpos
< region_beg
6269 || bufpos
>= region_end
)
6271 /* We can't realize faces for different charsets differently
6272 if we don't have fonts, so we can stop here if not working
6273 on a window-system frame. */
6274 || !FRAME_WINDOW_P (f
)
6275 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6276 return base_face
->id
;
6278 /* Begin with attributes from the base face. */
6279 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6281 /* Merge in attributes specified via text properties. */
6283 merge_face_ref (f
, prop
, attrs
, 1, 0);
6285 /* If in the region, merge in the region face. */
6287 && bufpos
>= region_beg
6288 && bufpos
< region_end
)
6289 merge_named_face (f
, Qregion
, attrs
, 0);
6291 /* Look up a realized face with the given face attributes,
6292 or realize a new one for ASCII characters. */
6293 return lookup_face (f
, attrs
);
6297 /* Merge a face into a realized face.
6299 F is frame where faces are (to be) realized.
6301 FACE_NAME is named face to merge.
6303 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6305 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6307 BASE_FACE_ID is realized face to merge into.
6313 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6316 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6317 struct face
*base_face
;
6319 base_face
= FACE_FROM_ID (f
, base_face_id
);
6321 return base_face_id
;
6323 if (EQ (face_name
, Qt
))
6325 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6326 return base_face_id
;
6327 face_name
= lface_id_to_name
[face_id
];
6328 /* When called during make-frame, lookup_derived_face may fail
6329 if the faces are uninitialized. Don't signal an error. */
6330 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6331 return (face_id
>= 0 ? face_id
: base_face_id
);
6334 /* Begin with attributes from the base face. */
6335 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6337 if (!NILP (face_name
))
6339 if (!merge_named_face (f
, face_name
, attrs
, 0))
6340 return base_face_id
;
6346 return base_face_id
;
6347 face
= FACE_FROM_ID (f
, face_id
);
6349 return base_face_id
;
6350 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6353 /* Look up a realized face with the given face attributes,
6354 or realize a new one for ASCII characters. */
6355 return lookup_face (f
, attrs
);
6360 #ifndef HAVE_X_WINDOWS
6361 DEFUN ("x-load-color-file", Fx_load_color_file
,
6362 Sx_load_color_file
, 1, 1, 0,
6363 doc
: /* Create an alist of color entries from an external file.
6365 The file should define one named RGB color per line like so:
6367 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6368 (Lisp_Object filename
)
6371 Lisp_Object cmap
= Qnil
;
6372 Lisp_Object abspath
;
6374 CHECK_STRING (filename
);
6375 abspath
= Fexpand_file_name (filename
, Qnil
);
6377 fp
= fopen (SSDATA (abspath
), "rt");
6381 int red
, green
, blue
;
6386 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6387 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6389 char *name
= buf
+ num
;
6390 num
= strlen (name
) - 1;
6391 if (num
>= 0 && name
[num
] == '\n')
6393 cmap
= Fcons (Fcons (build_string (name
),
6395 make_number (RGB (red
, green
, blue
))),
6397 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6412 /***********************************************************************
6414 ***********************************************************************/
6418 /* Print the contents of the realized face FACE to stderr. */
6421 dump_realized_face (struct face
*face
)
6423 fprintf (stderr
, "ID: %d\n", face
->id
);
6424 #ifdef HAVE_X_WINDOWS
6425 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6427 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6429 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6430 fprintf (stderr
, "background: 0x%lx (%s)\n",
6432 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6434 fprintf (stderr
, "font_name: %s (%s)\n",
6435 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6436 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6437 #ifdef HAVE_X_WINDOWS
6438 fprintf (stderr
, "font = %p\n", face
->font
);
6440 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6441 fprintf (stderr
, "underline: %d (%s)\n",
6443 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6444 fprintf (stderr
, "hash: %d\n", face
->hash
);
6448 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6455 fprintf (stderr
, "font selection order: ");
6456 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6457 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6458 fprintf (stderr
, "\n");
6460 fprintf (stderr
, "alternative fonts: ");
6461 debug_print (Vface_alternative_font_family_alist
);
6462 fprintf (stderr
, "\n");
6464 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6465 Fdump_face (make_number (i
));
6471 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6473 error ("Not a valid face");
6474 dump_realized_face (face
);
6481 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6482 0, 0, 0, doc
: /* */)
6485 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6486 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6487 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6491 #endif /* GLYPH_DEBUG */
6495 /***********************************************************************
6497 ***********************************************************************/
6500 syms_of_xfaces (void)
6502 DEFSYM (Qface
, "face");
6503 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6504 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6505 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6507 /* Lisp face attribute keywords. */
6508 DEFSYM (QCfamily
, ":family");
6509 DEFSYM (QCheight
, ":height");
6510 DEFSYM (QCweight
, ":weight");
6511 DEFSYM (QCslant
, ":slant");
6512 DEFSYM (QCunderline
, ":underline");
6513 DEFSYM (QCinverse_video
, ":inverse-video");
6514 DEFSYM (QCreverse_video
, ":reverse-video");
6515 DEFSYM (QCforeground
, ":foreground");
6516 DEFSYM (QCbackground
, ":background");
6517 DEFSYM (QCstipple
, ":stipple");
6518 DEFSYM (QCwidth
, ":width");
6519 DEFSYM (QCfont
, ":font");
6520 DEFSYM (QCfontset
, ":fontset");
6521 DEFSYM (QCbold
, ":bold");
6522 DEFSYM (QCitalic
, ":italic");
6523 DEFSYM (QCoverline
, ":overline");
6524 DEFSYM (QCstrike_through
, ":strike-through");
6525 DEFSYM (QCbox
, ":box");
6526 DEFSYM (QCinherit
, ":inherit");
6528 /* Symbols used for Lisp face attribute values. */
6529 DEFSYM (QCcolor
, ":color");
6530 DEFSYM (QCline_width
, ":line-width");
6531 DEFSYM (QCstyle
, ":style");
6532 DEFSYM (Qline
, "line");
6533 DEFSYM (Qwave
, "wave");
6534 DEFSYM (Qreleased_button
, "released-button");
6535 DEFSYM (Qpressed_button
, "pressed-button");
6536 DEFSYM (Qnormal
, "normal");
6537 DEFSYM (Qultra_light
, "ultra-light");
6538 DEFSYM (Qextra_light
, "extra-light");
6539 DEFSYM (Qlight
, "light");
6540 DEFSYM (Qsemi_light
, "semi-light");
6541 DEFSYM (Qsemi_bold
, "semi-bold");
6542 DEFSYM (Qbold
, "bold");
6543 DEFSYM (Qextra_bold
, "extra-bold");
6544 DEFSYM (Qultra_bold
, "ultra-bold");
6545 DEFSYM (Qoblique
, "oblique");
6546 DEFSYM (Qitalic
, "italic");
6547 DEFSYM (Qreverse_oblique
, "reverse-oblique");
6548 DEFSYM (Qreverse_italic
, "reverse-italic");
6549 DEFSYM (Qultra_condensed
, "ultra-condensed");
6550 DEFSYM (Qextra_condensed
, "extra-condensed");
6551 DEFSYM (Qcondensed
, "condensed");
6552 DEFSYM (Qsemi_condensed
, "semi-condensed");
6553 DEFSYM (Qsemi_expanded
, "semi-expanded");
6554 DEFSYM (Qexpanded
, "expanded");
6555 DEFSYM (Qextra_expanded
, "extra-expanded");
6556 DEFSYM (Qultra_expanded
, "ultra-expanded");
6557 DEFSYM (Qbackground_color
, "background-color");
6558 DEFSYM (Qforeground_color
, "foreground-color");
6559 DEFSYM (Qunspecified
, "unspecified");
6560 DEFSYM (QCignore_defface
, ":ignore-defface");
6562 DEFSYM (Qface_alias
, "face-alias");
6563 DEFSYM (Qdefault
, "default");
6564 DEFSYM (Qtool_bar
, "tool-bar");
6565 DEFSYM (Qregion
, "region");
6566 DEFSYM (Qfringe
, "fringe");
6567 DEFSYM (Qheader_line
, "header-line");
6568 DEFSYM (Qscroll_bar
, "scroll-bar");
6569 DEFSYM (Qmenu
, "menu");
6570 DEFSYM (Qcursor
, "cursor");
6571 DEFSYM (Qborder
, "border");
6572 DEFSYM (Qmouse
, "mouse");
6573 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6574 DEFSYM (Qvertical_border
, "vertical-border");
6575 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6576 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6577 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6578 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6579 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6581 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6582 staticpro (&Vparam_value_alist
);
6583 Vface_alternative_font_family_alist
= Qnil
;
6584 staticpro (&Vface_alternative_font_family_alist
);
6585 Vface_alternative_font_registry_alist
= Qnil
;
6586 staticpro (&Vface_alternative_font_registry_alist
);
6588 defsubr (&Sinternal_make_lisp_face
);
6589 defsubr (&Sinternal_lisp_face_p
);
6590 defsubr (&Sinternal_set_lisp_face_attribute
);
6591 #ifdef HAVE_WINDOW_SYSTEM
6592 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6594 defsubr (&Scolor_gray_p
);
6595 defsubr (&Scolor_supported_p
);
6596 #ifndef HAVE_X_WINDOWS
6597 defsubr (&Sx_load_color_file
);
6599 defsubr (&Sface_attribute_relative_p
);
6600 defsubr (&Smerge_face_attribute
);
6601 defsubr (&Sinternal_get_lisp_face_attribute
);
6602 defsubr (&Sinternal_lisp_face_attribute_values
);
6603 defsubr (&Sinternal_lisp_face_equal_p
);
6604 defsubr (&Sinternal_lisp_face_empty_p
);
6605 defsubr (&Sinternal_copy_lisp_face
);
6606 defsubr (&Sinternal_merge_in_global_face
);
6607 defsubr (&Sface_font
);
6608 defsubr (&Sframe_face_alist
);
6609 defsubr (&Sdisplay_supports_face_attributes_p
);
6610 defsubr (&Scolor_distance
);
6611 defsubr (&Sinternal_set_font_selection_order
);
6612 defsubr (&Sinternal_set_alternative_font_family_alist
);
6613 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6614 defsubr (&Sface_attributes_as_vector
);
6616 defsubr (&Sdump_face
);
6617 defsubr (&Sshow_face_resources
);
6618 #endif /* GLYPH_DEBUG */
6619 defsubr (&Sclear_face_cache
);
6620 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6622 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6623 defsubr (&Sdump_colors
);
6626 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6627 doc
: /* Limit for font matching.
6628 If an integer > 0, font matching functions won't load more than
6629 that number of fonts when searching for a matching font. */);
6630 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6632 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6633 doc
: /* List of global face definitions (for internal use only.) */);
6634 Vface_new_frame_defaults
= Qnil
;
6636 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6637 doc
: /* Default stipple pattern used on monochrome displays.
6638 This stipple pattern is used on monochrome displays
6639 instead of shades of gray for a face background color.
6640 See `set-face-stipple' for possible values for this variable. */);
6641 Vface_default_stipple
= build_pure_c_string ("gray3");
6643 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6644 doc
: /* An alist of defined terminal colors and their RGB values.
6645 See the docstring of `tty-color-alist' for the details. */);
6646 Vtty_defined_color_alist
= Qnil
;
6648 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6649 doc
: /* Allowed scalable fonts.
6650 A value of nil means don't allow any scalable fonts.
6651 A value of t means allow any scalable font.
6652 Otherwise, value must be a list of regular expressions. A font may be
6653 scaled if its name matches a regular expression in the list.
6654 Note that if value is nil, a scalable font might still be used, if no
6655 other font of the appropriate family and registry is available. */);
6656 Vscalable_fonts_allowed
= Qnil
;
6658 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6659 doc
: /* List of ignored fonts.
6660 Each element is a regular expression that matches names of fonts to
6662 Vface_ignored_fonts
= Qnil
;
6664 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6665 doc
: /* Alist of face remappings.
6666 Each element is of the form:
6668 (FACE . REPLACEMENT),
6670 which causes display of the face FACE to use REPLACEMENT instead.
6671 REPLACEMENT is a face specification, i.e. one of the following:
6674 (2) a property list of attribute/value pairs, or
6675 (3) a list in which each element has the form of (1) or (2).
6677 List values for REPLACEMENT are merged to form the final face
6678 specification, with earlier entries taking precedence, in the same as
6679 as in the `face' text property.
6681 Face-name remapping cycles are suppressed; recursive references use
6682 the underlying face instead of the remapped face. So a remapping of
6685 (FACE EXTRA-FACE... FACE)
6689 (FACE (FACE-ATTR VAL ...) FACE)
6691 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6692 existing definition of FACE. Note that this isn't necessary for the
6693 default face, since every face inherits from the default face.
6695 If this variable is made buffer-local, the face remapping takes effect
6696 only in that buffer. For instance, the mode my-mode could define a
6697 face `my-mode-default', and then in the mode setup function, do:
6699 (set (make-local-variable 'face-remapping-alist)
6700 '((default my-mode-default)))).
6702 Because Emacs normally only redraws screen areas when the underlying
6703 buffer contents change, you may need to call `redraw-display' after
6704 changing this variable for it to take effect. */);
6705 Vface_remapping_alist
= Qnil
;
6707 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6708 doc
: /* Alist of fonts vs the rescaling factors.
6709 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6710 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6711 RESCALE-RATIO is a floating point number to specify how much larger
6712 \(or smaller) font we should use. For instance, if a face requests
6713 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6714 Vface_font_rescale_alist
= Qnil
;
6716 #ifdef HAVE_WINDOW_SYSTEM
6717 defsubr (&Sbitmap_spec_p
);
6718 defsubr (&Sx_list_fonts
);
6719 defsubr (&Sinternal_face_x_get_resource
);
6720 defsubr (&Sx_family_fonts
);