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 Lisp_Object Qultra_light
, Qextra_light
, Qlight
;
323 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
324 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
, 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
)
2284 Lisp_Object font
= Qnil
;
2286 /* If FROM inherits from some other faces, merge their attributes into
2287 TO before merging FROM's direct attributes. Note that an :inherit
2288 attribute of `unspecified' is the same as one of nil; we never
2289 merge :inherit attributes, so nil is more correct, but lots of
2290 other code uses `unspecified' as a generic value for face attributes. */
2291 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2292 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2293 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2295 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2297 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2298 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2300 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2301 to
[LFACE_FONT_INDEX
] = font
;
2304 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2305 if (!UNSPECIFIEDP (from
[i
]))
2307 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2309 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2310 font_clear_prop (to
, FONT_SIZE_INDEX
);
2312 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2315 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2316 font_clear_prop (to
,
2317 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2318 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2319 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2320 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2321 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2322 : FONT_SLANT_INDEX
));
2326 /* If FROM specifies a font spec, make its contents take precedence
2327 over :family and other attributes. This is needed for face
2328 remapping using :font to work. */
2332 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2333 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2334 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2335 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2336 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2337 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2338 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2339 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2340 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2341 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2342 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2345 /* TO is always an absolute face, which should inherit from nothing.
2346 We blindly copy the :inherit attribute above and fix it up here. */
2347 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2350 /* Merge the named face FACE_NAME on frame F, into the vector of face
2351 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2352 inheritance. Returns true if FACE_NAME is a valid face name and
2353 merging succeeded. */
2356 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2357 struct named_merge_point
*named_merge_points
)
2359 struct named_merge_point named_merge_point
;
2361 if (push_named_merge_point (&named_merge_point
,
2362 face_name
, NAMED_MERGE_POINT_NORMAL
,
2363 &named_merge_points
))
2365 struct gcpro gcpro1
;
2366 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2367 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2371 GCPRO1 (named_merge_point
.face_name
);
2372 merge_face_vectors (f
, from
, to
, named_merge_points
);
2383 /* Merge face attributes from the lisp `face reference' FACE_REF on
2384 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2385 problems with FACE_REF cause an error message to be shown. Return
2386 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2387 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2388 list structure; it may be 0 for most callers.
2390 FACE_REF may be a single face specification or a list of such
2391 specifications. Each face specification can be:
2393 1. A symbol or string naming a Lisp face.
2395 2. A property list of the form (KEYWORD VALUE ...) where each
2396 KEYWORD is a face attribute name, and value is an appropriate value
2399 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2400 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2401 for compatibility with 20.2.
2403 Face specifications earlier in lists take precedence over later
2407 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2408 int err_msgs
, struct named_merge_point
*named_merge_points
)
2410 int ok
= 1; /* Succeed without an error? */
2412 if (CONSP (face_ref
))
2414 Lisp_Object first
= XCAR (face_ref
);
2416 if (EQ (first
, Qforeground_color
)
2417 || EQ (first
, Qbackground_color
))
2419 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2420 . COLOR). COLOR must be a string. */
2421 Lisp_Object color_name
= XCDR (face_ref
);
2422 Lisp_Object color
= first
;
2424 if (STRINGP (color_name
))
2426 if (EQ (color
, Qforeground_color
))
2427 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2429 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2434 add_to_log ("Invalid face color", color_name
, Qnil
);
2438 else if (SYMBOLP (first
)
2439 && *SDATA (SYMBOL_NAME (first
)) == ':')
2441 /* Assume this is the property list form. */
2442 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2444 Lisp_Object keyword
= XCAR (face_ref
);
2445 Lisp_Object value
= XCAR (XCDR (face_ref
));
2448 /* Specifying `unspecified' is a no-op. */
2449 if (EQ (value
, Qunspecified
))
2451 else if (EQ (keyword
, QCfamily
))
2453 if (STRINGP (value
))
2455 to
[LFACE_FAMILY_INDEX
] = value
;
2456 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2461 else if (EQ (keyword
, QCfoundry
))
2463 if (STRINGP (value
))
2465 to
[LFACE_FOUNDRY_INDEX
] = value
;
2466 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2471 else if (EQ (keyword
, QCheight
))
2473 Lisp_Object new_height
=
2474 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2476 if (! NILP (new_height
))
2478 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2479 font_clear_prop (to
, FONT_SIZE_INDEX
);
2484 else if (EQ (keyword
, QCweight
))
2486 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2488 to
[LFACE_WEIGHT_INDEX
] = value
;
2489 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2494 else if (EQ (keyword
, QCslant
))
2496 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2498 to
[LFACE_SLANT_INDEX
] = value
;
2499 font_clear_prop (to
, FONT_SLANT_INDEX
);
2504 else if (EQ (keyword
, QCunderline
))
2510 to
[LFACE_UNDERLINE_INDEX
] = value
;
2514 else if (EQ (keyword
, QCoverline
))
2519 to
[LFACE_OVERLINE_INDEX
] = value
;
2523 else if (EQ (keyword
, QCstrike_through
))
2528 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2532 else if (EQ (keyword
, QCbox
))
2535 value
= make_number (1);
2536 if (INTEGERP (value
)
2540 to
[LFACE_BOX_INDEX
] = value
;
2544 else if (EQ (keyword
, QCinverse_video
)
2545 || EQ (keyword
, QCreverse_video
))
2547 if (EQ (value
, Qt
) || NILP (value
))
2548 to
[LFACE_INVERSE_INDEX
] = value
;
2552 else if (EQ (keyword
, QCforeground
))
2554 if (STRINGP (value
))
2555 to
[LFACE_FOREGROUND_INDEX
] = value
;
2559 else if (EQ (keyword
, QCbackground
))
2561 if (STRINGP (value
))
2562 to
[LFACE_BACKGROUND_INDEX
] = value
;
2566 else if (EQ (keyword
, QCstipple
))
2568 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
2569 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2570 if (!NILP (pixmap_p
))
2571 to
[LFACE_STIPPLE_INDEX
] = value
;
2576 else if (EQ (keyword
, QCwidth
))
2578 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2580 to
[LFACE_SWIDTH_INDEX
] = value
;
2581 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2586 else if (EQ (keyword
, QCfont
))
2589 to
[LFACE_FONT_INDEX
] = value
;
2593 else if (EQ (keyword
, QCinherit
))
2595 /* This is not really very useful; it's just like a
2596 normal face reference. */
2597 if (! merge_face_ref (f
, value
, to
,
2598 err_msgs
, named_merge_points
))
2606 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2610 face_ref
= XCDR (XCDR (face_ref
));
2615 /* This is a list of face refs. Those at the beginning of the
2616 list take precedence over what follows, so we have to merge
2617 from the end backwards. */
2618 Lisp_Object next
= XCDR (face_ref
);
2621 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2623 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2629 /* FACE_REF ought to be a face name. */
2630 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2631 if (!ok
&& err_msgs
)
2632 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2639 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2640 Sinternal_make_lisp_face
, 1, 2, 0,
2641 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2642 If FACE was not known as a face before, create a new one.
2643 If optional argument FRAME is specified, make a frame-local face
2644 for that frame. Otherwise operate on the global face definition.
2645 Value is a vector of face attributes. */)
2646 (Lisp_Object face
, Lisp_Object frame
)
2648 Lisp_Object global_lface
, lface
;
2652 CHECK_SYMBOL (face
);
2653 global_lface
= lface_from_face_name (NULL
, face
, 0);
2657 CHECK_LIVE_FRAME (frame
);
2659 lface
= lface_from_face_name (f
, face
, 0);
2662 f
= NULL
, lface
= Qnil
;
2664 /* Add a global definition if there is none. */
2665 if (NILP (global_lface
))
2667 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2669 ASET (global_lface
, 0, Qface
);
2670 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2671 Vface_new_frame_defaults
);
2673 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2674 face id to Lisp face is given by the vector lface_id_to_name.
2675 The mapping from Lisp face to Lisp face id is given by the
2676 property `face' of the Lisp face name. */
2677 if (next_lface_id
== lface_id_to_name_size
)
2679 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2680 sizeof *lface_id_to_name
);
2682 lface_id_to_name
[next_lface_id
] = face
;
2683 Fput (face
, Qface
, make_number (next_lface_id
));
2687 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2688 ASET (global_lface
, i
, Qunspecified
);
2690 /* Add a frame-local definition. */
2695 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2697 ASET (lface
, 0, Qface
);
2698 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2701 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2702 ASET (lface
, i
, Qunspecified
);
2705 lface
= global_lface
;
2707 /* Changing a named face means that all realized faces depending on
2708 that face are invalid. Since we cannot tell which realized faces
2709 depend on the face, make sure they are all removed. This is done
2710 by incrementing face_change_count. The next call to
2711 init_iterator will then free realized faces. */
2712 if (NILP (Fget (face
, Qface_no_inherit
)))
2714 ++face_change_count
;
2715 ++windows_or_buffers_changed
;
2718 eassert (LFACEP (lface
));
2719 check_lface (lface
);
2724 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2725 Sinternal_lisp_face_p
, 1, 2, 0,
2726 doc
: /* Return non-nil if FACE names a face.
2727 FACE should be a symbol or string.
2728 If optional second argument FRAME is non-nil, check for the
2729 existence of a frame-local face with name FACE on that frame.
2730 Otherwise check for the existence of a global face. */)
2731 (Lisp_Object face
, Lisp_Object frame
)
2735 face
= resolve_face_name (face
, 1);
2739 CHECK_LIVE_FRAME (frame
);
2740 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2743 lface
= lface_from_face_name (NULL
, face
, 0);
2749 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2750 Sinternal_copy_lisp_face
, 4, 4, 0,
2751 doc
: /* Copy face FROM to TO.
2752 If FRAME is t, copy the global face definition of FROM.
2753 Otherwise, copy the frame-local definition of FROM on FRAME.
2754 If NEW-FRAME is a frame, copy that data into the frame-local
2755 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2756 FRAME controls where the data is copied to.
2758 The value is TO. */)
2759 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2761 Lisp_Object lface
, copy
;
2763 CHECK_SYMBOL (from
);
2768 /* Copy global definition of FROM. We don't make copies of
2769 strings etc. because 20.2 didn't do it either. */
2770 lface
= lface_from_face_name (NULL
, from
, 1);
2771 copy
= Finternal_make_lisp_face (to
, Qnil
);
2775 /* Copy frame-local definition of FROM. */
2776 if (NILP (new_frame
))
2778 CHECK_LIVE_FRAME (frame
);
2779 CHECK_LIVE_FRAME (new_frame
);
2780 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2781 copy
= Finternal_make_lisp_face (to
, new_frame
);
2784 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2785 LFACE_VECTOR_SIZE
* word_size
);
2787 /* Changing a named face means that all realized faces depending on
2788 that face are invalid. Since we cannot tell which realized faces
2789 depend on the face, make sure they are all removed. This is done
2790 by incrementing face_change_count. The next call to
2791 init_iterator will then free realized faces. */
2792 if (NILP (Fget (to
, Qface_no_inherit
)))
2794 ++face_change_count
;
2795 ++windows_or_buffers_changed
;
2802 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2803 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2804 doc
: /* Set attribute ATTR of FACE to VALUE.
2805 FRAME being a frame means change the face on that frame.
2806 FRAME nil means change the face of the selected frame.
2807 FRAME t means change the default for new frames.
2808 FRAME 0 means change the face on all frames, and change the default
2810 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2813 Lisp_Object old_value
= Qnil
;
2814 /* Set one of enum font_property_index (> 0) if ATTR is one of
2815 font-related attributes other than QCfont and QCfontset. */
2816 enum font_property_index prop_index
= 0;
2818 CHECK_SYMBOL (face
);
2819 CHECK_SYMBOL (attr
);
2821 face
= resolve_face_name (face
, 1);
2823 /* If FRAME is 0, change face on all frames, and change the
2824 default for new frames. */
2825 if (INTEGERP (frame
) && XINT (frame
) == 0)
2828 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2829 FOR_EACH_FRAME (tail
, frame
)
2830 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2834 /* Set lface to the Lisp attribute vector of FACE. */
2837 lface
= lface_from_face_name (NULL
, face
, 1);
2839 /* When updating face-new-frame-defaults, we put :ignore-defface
2840 where the caller wants `unspecified'. This forces the frame
2841 defaults to ignore the defface value. Otherwise, the defface
2842 will take effect, which is generally not what is intended.
2843 The value of that attribute will be inherited from some other
2844 face during face merging. See internal_merge_in_global_face. */
2845 if (UNSPECIFIEDP (value
))
2846 value
= QCignore_defface
;
2851 frame
= selected_frame
;
2853 CHECK_LIVE_FRAME (frame
);
2854 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2856 /* If a frame-local face doesn't exist yet, create one. */
2858 lface
= Finternal_make_lisp_face (face
, frame
);
2861 if (EQ (attr
, QCfamily
))
2863 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2865 CHECK_STRING (value
);
2866 if (SCHARS (value
) == 0)
2867 signal_error ("Invalid face family", value
);
2869 old_value
= LFACE_FAMILY (lface
);
2870 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2871 prop_index
= FONT_FAMILY_INDEX
;
2873 else if (EQ (attr
, QCfoundry
))
2875 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2877 CHECK_STRING (value
);
2878 if (SCHARS (value
) == 0)
2879 signal_error ("Invalid face foundry", value
);
2881 old_value
= LFACE_FOUNDRY (lface
);
2882 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2883 prop_index
= FONT_FOUNDRY_INDEX
;
2885 else if (EQ (attr
, QCheight
))
2887 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2889 if (EQ (face
, Qdefault
))
2891 /* The default face must have an absolute size. */
2892 if (!INTEGERP (value
) || XINT (value
) <= 0)
2893 signal_error ("Default face height not absolute and positive",
2898 /* For non-default faces, do a test merge with a random
2899 height to see if VALUE's ok. */
2900 Lisp_Object test
= merge_face_heights (value
,
2903 if (!INTEGERP (test
) || XINT (test
) <= 0)
2904 signal_error ("Face height does not produce a positive integer",
2909 old_value
= LFACE_HEIGHT (lface
);
2910 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2911 prop_index
= FONT_SIZE_INDEX
;
2913 else if (EQ (attr
, QCweight
))
2915 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2917 CHECK_SYMBOL (value
);
2918 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2919 signal_error ("Invalid face weight", value
);
2921 old_value
= LFACE_WEIGHT (lface
);
2922 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2923 prop_index
= FONT_WEIGHT_INDEX
;
2925 else if (EQ (attr
, QCslant
))
2927 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2929 CHECK_SYMBOL (value
);
2930 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2931 signal_error ("Invalid face slant", value
);
2933 old_value
= LFACE_SLANT (lface
);
2934 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2935 prop_index
= FONT_SLANT_INDEX
;
2937 else if (EQ (attr
, QCunderline
))
2941 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2943 else if (NILP (value
) || EQ (value
, Qt
))
2945 else if (STRINGP (value
) && SCHARS (value
) > 0)
2947 else if (CONSP (value
))
2949 Lisp_Object key
, val
, list
;
2954 while (!NILP (CAR_SAFE(list
)))
2956 key
= CAR_SAFE (list
);
2957 list
= CDR_SAFE (list
);
2958 val
= CAR_SAFE (list
);
2959 list
= CDR_SAFE (list
);
2961 if (NILP (key
) || NILP (val
))
2967 else if (EQ (key
, QCcolor
)
2968 && !(EQ (val
, Qforeground_color
)
2969 || (STRINGP (val
) && SCHARS (val
) > 0)))
2975 else if (EQ (key
, QCstyle
)
2976 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2985 signal_error ("Invalid face underline", value
);
2987 old_value
= LFACE_UNDERLINE (lface
);
2988 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2990 else if (EQ (attr
, QCoverline
))
2992 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2993 if ((SYMBOLP (value
)
2995 && !EQ (value
, Qnil
))
2996 /* Overline color. */
2998 && SCHARS (value
) == 0))
2999 signal_error ("Invalid face overline", value
);
3001 old_value
= LFACE_OVERLINE (lface
);
3002 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
3004 else if (EQ (attr
, QCstrike_through
))
3006 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3007 if ((SYMBOLP (value
)
3009 && !EQ (value
, Qnil
))
3010 /* Strike-through color. */
3012 && SCHARS (value
) == 0))
3013 signal_error ("Invalid face strike-through", value
);
3015 old_value
= LFACE_STRIKE_THROUGH (lface
);
3016 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
3018 else if (EQ (attr
, QCbox
))
3022 /* Allow t meaning a simple box of width 1 in foreground color
3025 value
= make_number (1);
3027 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3029 else if (NILP (value
))
3031 else if (INTEGERP (value
))
3032 valid_p
= XINT (value
) != 0;
3033 else if (STRINGP (value
))
3034 valid_p
= SCHARS (value
) > 0;
3035 else if (CONSP (value
))
3051 if (EQ (k
, QCline_width
))
3053 if (!INTEGERP (v
) || XINT (v
) == 0)
3056 else if (EQ (k
, QCcolor
))
3058 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3061 else if (EQ (k
, QCstyle
))
3063 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3070 valid_p
= NILP (tem
);
3076 signal_error ("Invalid face box", value
);
3078 old_value
= LFACE_BOX (lface
);
3079 ASET (lface
, LFACE_BOX_INDEX
, value
);
3081 else if (EQ (attr
, QCinverse_video
)
3082 || EQ (attr
, QCreverse_video
))
3084 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3086 CHECK_SYMBOL (value
);
3087 if (!EQ (value
, Qt
) && !NILP (value
))
3088 signal_error ("Invalid inverse-video face attribute value", value
);
3090 old_value
= LFACE_INVERSE (lface
);
3091 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
3093 else if (EQ (attr
, QCforeground
))
3095 /* Compatibility with 20.x. */
3097 value
= Qunspecified
;
3098 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3100 /* Don't check for valid color names here because it depends
3101 on the frame (display) whether the color will be valid
3102 when the face is realized. */
3103 CHECK_STRING (value
);
3104 if (SCHARS (value
) == 0)
3105 signal_error ("Empty foreground color value", value
);
3107 old_value
= LFACE_FOREGROUND (lface
);
3108 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3110 else if (EQ (attr
, QCbackground
))
3112 /* Compatibility with 20.x. */
3114 value
= Qunspecified
;
3115 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3117 /* Don't check for valid color names here because it depends
3118 on the frame (display) whether the color will be valid
3119 when the face is realized. */
3120 CHECK_STRING (value
);
3121 if (SCHARS (value
) == 0)
3122 signal_error ("Empty background color value", value
);
3124 old_value
= LFACE_BACKGROUND (lface
);
3125 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3127 else if (EQ (attr
, QCstipple
))
3129 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3130 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3132 && NILP (Fbitmap_spec_p (value
)))
3133 signal_error ("Invalid stipple attribute", value
);
3134 old_value
= LFACE_STIPPLE (lface
);
3135 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3136 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3138 else if (EQ (attr
, QCwidth
))
3140 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3142 CHECK_SYMBOL (value
);
3143 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3144 signal_error ("Invalid face width", value
);
3146 old_value
= LFACE_SWIDTH (lface
);
3147 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3148 prop_index
= FONT_WIDTH_INDEX
;
3150 else if (EQ (attr
, QCfont
))
3152 #ifdef HAVE_WINDOW_SYSTEM
3153 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3155 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3159 old_value
= LFACE_FONT (lface
);
3160 if (! FONTP (value
))
3162 if (STRINGP (value
))
3164 Lisp_Object name
= value
;
3165 int fontset
= fs_query_fontset (name
, 0);
3168 name
= fontset_ascii (fontset
);
3169 value
= font_spec_from_name (name
);
3171 signal_error ("Invalid font name", name
);
3174 signal_error ("Invalid font or font-spec", value
);
3177 f
= XFRAME (selected_frame
);
3180 if (! FONT_OBJECT_P (value
))
3182 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3183 Lisp_Object font_object
;
3185 font_object
= font_load_for_lface (f
, attrs
, value
);
3186 if (NILP (font_object
))
3187 signal_error ("Font not available", value
);
3188 value
= font_object
;
3190 set_lface_from_font (f
, lface
, value
, 1);
3193 ASET (lface
, LFACE_FONT_INDEX
, value
);
3195 #endif /* HAVE_WINDOW_SYSTEM */
3197 else if (EQ (attr
, QCfontset
))
3199 #ifdef HAVE_WINDOW_SYSTEM
3200 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3204 old_value
= LFACE_FONTSET (lface
);
3205 tmp
= Fquery_fontset (value
, Qnil
);
3207 signal_error ("Invalid fontset name", value
);
3208 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3210 #endif /* HAVE_WINDOW_SYSTEM */
3212 else if (EQ (attr
, QCinherit
))
3215 if (SYMBOLP (value
))
3218 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3219 if (!SYMBOLP (XCAR (tail
)))
3222 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3224 signal_error ("Invalid face inheritance", value
);
3226 else if (EQ (attr
, QCbold
))
3228 old_value
= LFACE_WEIGHT (lface
);
3229 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3230 prop_index
= FONT_WEIGHT_INDEX
;
3232 else if (EQ (attr
, QCitalic
))
3235 old_value
= LFACE_SLANT (lface
);
3236 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3237 prop_index
= FONT_SLANT_INDEX
;
3240 signal_error ("Invalid face attribute name", attr
);
3244 /* If a font-related attribute other than QCfont and QCfontset
3245 is specified, and if the original QCfont attribute has a font
3246 (font-spec or font-object), set the corresponding property in
3247 the font to nil so that the font selector doesn't think that
3248 the attribute is mandatory. Also, clear the average
3250 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3253 /* Changing a named face means that all realized faces depending on
3254 that face are invalid. Since we cannot tell which realized faces
3255 depend on the face, make sure they are all removed. This is done
3256 by incrementing face_change_count. The next call to
3257 init_iterator will then free realized faces. */
3259 && NILP (Fget (face
, Qface_no_inherit
))
3260 && NILP (Fequal (old_value
, value
)))
3262 ++face_change_count
;
3263 ++windows_or_buffers_changed
;
3266 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3267 && NILP (Fequal (old_value
, value
)))
3273 if (EQ (face
, Qdefault
))
3275 #ifdef HAVE_WINDOW_SYSTEM
3276 /* Changed font-related attributes of the `default' face are
3277 reflected in changed `font' frame parameters. */
3279 && (prop_index
|| EQ (attr
, QCfont
))
3280 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3281 set_font_frame_param (frame
, lface
);
3283 #endif /* HAVE_WINDOW_SYSTEM */
3285 if (EQ (attr
, QCforeground
))
3286 param
= Qforeground_color
;
3287 else if (EQ (attr
, QCbackground
))
3288 param
= Qbackground_color
;
3290 #ifdef HAVE_WINDOW_SYSTEM
3292 else if (EQ (face
, Qscroll_bar
))
3294 /* Changing the colors of `scroll-bar' sets frame parameters
3295 `scroll-bar-foreground' and `scroll-bar-background'. */
3296 if (EQ (attr
, QCforeground
))
3297 param
= Qscroll_bar_foreground
;
3298 else if (EQ (attr
, QCbackground
))
3299 param
= Qscroll_bar_background
;
3301 #endif /* not WINDOWSNT */
3302 else if (EQ (face
, Qborder
))
3304 /* Changing background color of `border' sets frame parameter
3306 if (EQ (attr
, QCbackground
))
3307 param
= Qborder_color
;
3309 else if (EQ (face
, Qcursor
))
3311 /* Changing background color of `cursor' sets frame parameter
3313 if (EQ (attr
, QCbackground
))
3314 param
= Qcursor_color
;
3316 else if (EQ (face
, Qmouse
))
3318 /* Changing background color of `mouse' sets frame parameter
3320 if (EQ (attr
, QCbackground
))
3321 param
= Qmouse_color
;
3323 #endif /* HAVE_WINDOW_SYSTEM */
3324 else if (EQ (face
, Qmenu
))
3326 /* Indicate that we have to update the menu bar when
3327 realizing faces on FRAME. FRAME t change the
3328 default for new frames. We do this by setting
3329 setting the flag in new face caches */
3332 struct frame
*f
= XFRAME (frame
);
3333 if (FRAME_FACE_CACHE (f
) == NULL
)
3334 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3335 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3338 menu_face_changed_default
= 1;
3344 /* Update `default-frame-alist', which is used for new frames. */
3346 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3349 /* Update the current frame's parameters. */
3352 cons
= XCAR (Vparam_value_alist
);
3353 XSETCAR (cons
, param
);
3354 XSETCDR (cons
, value
);
3355 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3364 /* Update the corresponding face when frame parameter PARAM on frame F
3365 has been assigned the value NEW_VALUE. */
3368 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3369 Lisp_Object new_value
)
3371 Lisp_Object face
= Qnil
;
3374 /* If there are no faces yet, give up. This is the case when called
3375 from Fx_create_frame, and we do the necessary things later in
3376 face-set-after-frame-defaults. */
3377 if (NILP (f
->face_alist
))
3380 if (EQ (param
, Qforeground_color
))
3383 lface
= lface_from_face_name (f
, face
, 1);
3384 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3385 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3386 realize_basic_faces (f
);
3388 else if (EQ (param
, Qbackground_color
))
3392 /* Changing the background color might change the background
3393 mode, so that we have to load new defface specs.
3394 Call frame-set-background-mode to do that. */
3395 XSETFRAME (frame
, f
);
3396 call1 (Qframe_set_background_mode
, frame
);
3399 lface
= lface_from_face_name (f
, face
, 1);
3400 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3401 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3402 realize_basic_faces (f
);
3404 #ifdef HAVE_WINDOW_SYSTEM
3405 else if (EQ (param
, Qborder_color
))
3408 lface
= lface_from_face_name (f
, face
, 1);
3409 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3410 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3412 else if (EQ (param
, Qcursor_color
))
3415 lface
= lface_from_face_name (f
, face
, 1);
3416 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3417 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3419 else if (EQ (param
, Qmouse_color
))
3422 lface
= lface_from_face_name (f
, face
, 1);
3423 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3424 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3428 /* Changing a named face means that all realized faces depending on
3429 that face are invalid. Since we cannot tell which realized faces
3430 depend on the face, make sure they are all removed. This is done
3431 by incrementing face_change_count. The next call to
3432 init_iterator will then free realized faces. */
3434 && NILP (Fget (face
, Qface_no_inherit
)))
3436 ++face_change_count
;
3437 ++windows_or_buffers_changed
;
3442 #ifdef HAVE_WINDOW_SYSTEM
3444 /* Set the `font' frame parameter of FRAME determined from the
3445 font-object set in `default' face attributes LFACE. */
3448 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3450 struct frame
*f
= XFRAME (frame
);
3453 if (FRAME_WINDOW_P (f
)
3454 /* Don't do anything if the font is `unspecified'. This can
3455 happen during frame creation. */
3456 && (font
= LFACE_FONT (lface
),
3457 ! UNSPECIFIEDP (font
)))
3459 if (FONT_SPEC_P (font
))
3461 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3464 ASET (lface
, LFACE_FONT_INDEX
, font
);
3466 f
->default_face_done_p
= 0;
3467 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3472 /* Get the value of X resource RESOURCE, class CLASS for the display
3473 of frame FRAME. This is here because ordinary `x-get-resource'
3474 doesn't take a frame argument. */
3476 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3477 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3478 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3480 Lisp_Object value
= Qnil
;
3481 CHECK_STRING (resource
);
3482 CHECK_STRING (class);
3483 CHECK_LIVE_FRAME (frame
);
3485 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3486 resource
, class, Qnil
, Qnil
);
3492 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3493 If VALUE is "on" or "true", return t. If VALUE is "off" or
3494 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3495 error; if SIGNAL_P is zero, return 0. */
3498 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3500 Lisp_Object result
= make_number (0);
3502 eassert (STRINGP (value
));
3504 if (xstrcasecmp (SSDATA (value
), "on") == 0
3505 || xstrcasecmp (SSDATA (value
), "true") == 0)
3507 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3508 || xstrcasecmp (SSDATA (value
), "false") == 0)
3510 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3511 result
= Qunspecified
;
3513 signal_error ("Invalid face attribute value from X resource", value
);
3519 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3520 Finternal_set_lisp_face_attribute_from_resource
,
3521 Sinternal_set_lisp_face_attribute_from_resource
,
3522 3, 4, 0, doc
: /* */)
3523 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3525 CHECK_SYMBOL (face
);
3526 CHECK_SYMBOL (attr
);
3527 CHECK_STRING (value
);
3529 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3530 value
= Qunspecified
;
3531 else if (EQ (attr
, QCheight
))
3533 value
= Fstring_to_number (value
, make_number (10));
3534 if (XINT (value
) <= 0)
3535 signal_error ("Invalid face height from X resource", value
);
3537 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3538 value
= face_boolean_x_resource_value (value
, 1);
3539 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3540 value
= intern (SSDATA (value
));
3541 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3542 value
= face_boolean_x_resource_value (value
, 1);
3543 else if (EQ (attr
, QCunderline
)
3544 || EQ (attr
, QCoverline
)
3545 || EQ (attr
, QCstrike_through
))
3547 Lisp_Object boolean_value
;
3549 /* If the result of face_boolean_x_resource_value is t or nil,
3550 VALUE does NOT specify a color. */
3551 boolean_value
= face_boolean_x_resource_value (value
, 0);
3552 if (SYMBOLP (boolean_value
))
3553 value
= boolean_value
;
3555 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3556 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3558 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3561 #endif /* HAVE_WINDOW_SYSTEM */
3564 /***********************************************************************
3566 ***********************************************************************/
3568 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3570 /* Make menus on frame F appear as specified by the `menu' face. */
3573 x_update_menu_appearance (struct frame
*f
)
3575 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3579 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3584 ptrdiff_t bufsize
= sizeof line
;
3585 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3586 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3587 const char *myname
= SSDATA (Vx_resource_name
);
3590 const char *popup_path
= "popup_menu";
3592 const char *popup_path
= "menu.popup";
3595 if (STRINGP (LFACE_FOREGROUND (lface
)))
3597 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3599 SDATA (LFACE_FOREGROUND (lface
)));
3600 XrmPutLineResource (&rdb
, line
);
3601 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3602 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3603 XrmPutLineResource (&rdb
, line
);
3607 if (STRINGP (LFACE_BACKGROUND (lface
)))
3609 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3611 SDATA (LFACE_BACKGROUND (lface
)));
3612 XrmPutLineResource (&rdb
, line
);
3614 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3615 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3616 XrmPutLineResource (&rdb
, line
);
3621 /* On Solaris 5.8, it's been reported that the `menu' face
3622 can be unspecified here, during startup. Why this
3623 happens remains unknown. -- cyd */
3624 && FONTP (LFACE_FONT (lface
))
3625 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3626 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3627 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3628 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3629 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3630 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3632 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3634 const char *suffix
= "List";
3637 #if defined HAVE_X_I18N
3639 const char *suffix
= "Set";
3641 const char *suffix
= "";
3648 #if defined HAVE_X_I18N
3649 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3651 char *fontsetname
= SSDATA (xlfd
);
3653 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3654 myname
, suffix
, fontsetname
);
3655 XrmPutLineResource (&rdb
, line
);
3657 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3658 myname
, popup_path
, suffix
, fontsetname
);
3659 XrmPutLineResource (&rdb
, line
);
3661 if (fontsetname
!= SSDATA (xlfd
))
3662 xfree (fontsetname
);
3666 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3667 free_frame_menubar (f
);
3674 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3677 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3678 Sface_attribute_relative_p
,
3680 doc
: /* Check whether a face attribute value is relative.
3681 Specifically, this function returns t if the attribute ATTRIBUTE
3682 with the value VALUE is relative.
3684 A relative value is one that doesn't entirely override whatever is
3685 inherited from another face. For most possible attributes,
3686 the only relative value that users see is `unspecified'.
3687 However, for :height, floating point values are also relative. */)
3688 (Lisp_Object attribute
, Lisp_Object value
)
3690 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3692 else if (EQ (attribute
, QCheight
))
3693 return INTEGERP (value
) ? Qnil
: Qt
;
3698 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3700 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3701 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3702 the result will be absolute, otherwise it will be relative. */)
3703 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3705 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3707 else if (EQ (attribute
, QCheight
))
3708 return merge_face_heights (value1
, value2
, value1
);
3714 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3715 Sinternal_get_lisp_face_attribute
,
3717 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3718 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3719 face attribute name, signal an error.
3720 If the optional argument FRAME is given, report on face SYMBOL in that
3721 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3722 frames). If FRAME is omitted or nil, use the selected frame. */)
3723 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3725 Lisp_Object lface
, value
= Qnil
;
3727 CHECK_SYMBOL (symbol
);
3728 CHECK_SYMBOL (keyword
);
3731 lface
= lface_from_face_name (NULL
, symbol
, 1);
3735 frame
= selected_frame
;
3736 CHECK_LIVE_FRAME (frame
);
3737 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3740 if (EQ (keyword
, QCfamily
))
3741 value
= LFACE_FAMILY (lface
);
3742 else if (EQ (keyword
, QCfoundry
))
3743 value
= LFACE_FOUNDRY (lface
);
3744 else if (EQ (keyword
, QCheight
))
3745 value
= LFACE_HEIGHT (lface
);
3746 else if (EQ (keyword
, QCweight
))
3747 value
= LFACE_WEIGHT (lface
);
3748 else if (EQ (keyword
, QCslant
))
3749 value
= LFACE_SLANT (lface
);
3750 else if (EQ (keyword
, QCunderline
))
3751 value
= LFACE_UNDERLINE (lface
);
3752 else if (EQ (keyword
, QCoverline
))
3753 value
= LFACE_OVERLINE (lface
);
3754 else if (EQ (keyword
, QCstrike_through
))
3755 value
= LFACE_STRIKE_THROUGH (lface
);
3756 else if (EQ (keyword
, QCbox
))
3757 value
= LFACE_BOX (lface
);
3758 else if (EQ (keyword
, QCinverse_video
)
3759 || EQ (keyword
, QCreverse_video
))
3760 value
= LFACE_INVERSE (lface
);
3761 else if (EQ (keyword
, QCforeground
))
3762 value
= LFACE_FOREGROUND (lface
);
3763 else if (EQ (keyword
, QCbackground
))
3764 value
= LFACE_BACKGROUND (lface
);
3765 else if (EQ (keyword
, QCstipple
))
3766 value
= LFACE_STIPPLE (lface
);
3767 else if (EQ (keyword
, QCwidth
))
3768 value
= LFACE_SWIDTH (lface
);
3769 else if (EQ (keyword
, QCinherit
))
3770 value
= LFACE_INHERIT (lface
);
3771 else if (EQ (keyword
, QCfont
))
3772 value
= LFACE_FONT (lface
);
3773 else if (EQ (keyword
, QCfontset
))
3774 value
= LFACE_FONTSET (lface
);
3776 signal_error ("Invalid face attribute name", keyword
);
3778 if (IGNORE_DEFFACE_P (value
))
3779 return Qunspecified
;
3785 DEFUN ("internal-lisp-face-attribute-values",
3786 Finternal_lisp_face_attribute_values
,
3787 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3788 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3789 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3792 Lisp_Object result
= Qnil
;
3794 CHECK_SYMBOL (attr
);
3796 if (EQ (attr
, QCunderline
))
3797 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3798 else if (EQ (attr
, QCoverline
))
3799 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3800 else if (EQ (attr
, QCstrike_through
))
3801 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3802 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3803 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3809 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3810 Sinternal_merge_in_global_face
, 2, 2, 0,
3811 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3812 Default face attributes override any local face attributes. */)
3813 (Lisp_Object face
, Lisp_Object frame
)
3816 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3817 struct frame
*f
= XFRAME (frame
);
3819 CHECK_LIVE_FRAME (frame
);
3820 global_lface
= lface_from_face_name (NULL
, face
, 1);
3821 local_lface
= lface_from_face_name (f
, face
, 0);
3822 if (NILP (local_lface
))
3823 local_lface
= Finternal_make_lisp_face (face
, frame
);
3825 /* Make every specified global attribute override the local one.
3826 BEWARE!! This is only used from `face-set-after-frame-default' where
3827 the local frame is defined from default specs in `face-defface-spec'
3828 and those should be overridden by global settings. Hence the strange
3829 "global before local" priority. */
3830 lvec
= XVECTOR (local_lface
)->contents
;
3831 gvec
= XVECTOR (global_lface
)->contents
;
3832 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3833 if (IGNORE_DEFFACE_P (gvec
[i
]))
3834 lvec
[i
] = Qunspecified
;
3835 else if (! UNSPECIFIEDP (gvec
[i
]))
3838 /* If the default face was changed, update the face cache and the
3839 `font' frame parameter. */
3840 if (EQ (face
, Qdefault
))
3842 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3843 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3844 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3846 /* This can be NULL (e.g., in batch mode). */
3849 /* Ensure that the face vector is fully specified by merging
3850 the previously-cached vector. */
3851 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3852 merge_face_vectors (f
, lvec
, attrs
, 0);
3853 memcpy (lvec
, attrs
, sizeof attrs
);
3854 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3856 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3857 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3858 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3859 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3860 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3861 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3862 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3865 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3866 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3870 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3871 Fmodify_frame_parameters (frame
,
3872 Fcons (Fcons (Qforeground_color
,
3873 gvec
[LFACE_FOREGROUND_INDEX
]),
3876 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3877 Fmodify_frame_parameters (frame
,
3878 Fcons (Fcons (Qbackground_color
,
3879 gvec
[LFACE_BACKGROUND_INDEX
]),
3888 /* The following function is implemented for compatibility with 20.2.
3889 The function is used in x-resolve-fonts when it is asked to
3890 return fonts with the same size as the font of a face. This is
3891 done in fontset.el. */
3893 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3894 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3895 The font name is, by default, for ASCII characters.
3896 If the optional argument FRAME is given, report on face FACE in that frame.
3897 If FRAME is t, report on the defaults for face FACE (for new frames).
3898 The font default for a face is either nil, or a list
3899 of the form (bold), (italic) or (bold italic).
3900 If FRAME is omitted or nil, use the selected frame. And, in this case,
3901 if the optional third argument CHARACTER is given,
3902 return the font name used for CHARACTER. */)
3903 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3907 Lisp_Object result
= Qnil
;
3908 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3910 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3911 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3912 result
= Fcons (Qbold
, result
);
3914 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3915 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3916 result
= Fcons (Qitalic
, result
);
3922 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3923 int face_id
= lookup_named_face (f
, face
, 1);
3924 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3928 #ifdef HAVE_WINDOW_SYSTEM
3929 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3931 CHECK_CHARACTER (character
);
3932 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3933 fface
= FACE_FROM_ID (f
, face_id
);
3936 ? fface
->font
->props
[FONT_NAME_INDEX
]
3938 #else /* !HAVE_WINDOW_SYSTEM */
3939 return build_string (FRAME_MSDOS_P (f
)
3941 : FRAME_W32_P (f
) ? "w32term"
3948 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3949 all attributes are `equal'. Tries to be fast because this function
3950 is called quite often. */
3953 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3955 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3956 and the other is specified. */
3957 if (XTYPE (v1
) != XTYPE (v2
))
3966 if (SBYTES (v1
) != SBYTES (v2
))
3969 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3976 return !NILP (Fequal (v1
, v2
));
3981 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3982 all attributes are `equal'. Tries to be fast because this function
3983 is called quite often. */
3986 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3990 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3991 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3997 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3998 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3999 doc
: /* True if FACE1 and FACE2 are equal.
4000 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4001 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4002 If FRAME is omitted or nil, use the selected frame. */)
4003 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
4007 Lisp_Object lface1
, lface2
;
4012 /* Don't use check_x_frame here because this function is called
4013 before X frames exist. At that time, if FRAME is nil,
4014 selected_frame will be used which is the frame dumped with
4015 Emacs. That frame is not an X frame. */
4016 f
= frame_or_selected_frame (frame
, 2);
4018 lface1
= lface_from_face_name (f
, face1
, 1);
4019 lface2
= lface_from_face_name (f
, face2
, 1);
4020 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4021 XVECTOR (lface2
)->contents
);
4022 return equal_p
? Qt
: Qnil
;
4026 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4027 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4028 doc
: /* True if FACE has no attribute specified.
4029 If the optional argument FRAME is given, report on face FACE in that frame.
4030 If FRAME is t, report on the defaults for face FACE (for new frames).
4031 If FRAME is omitted or nil, use the selected frame. */)
4032 (Lisp_Object face
, Lisp_Object frame
)
4039 frame
= selected_frame
;
4040 CHECK_LIVE_FRAME (frame
);
4044 lface
= lface_from_face_name (NULL
, face
, 1);
4046 lface
= lface_from_face_name (f
, face
, 1);
4048 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4049 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4052 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4056 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4058 doc
: /* Return an alist of frame-local faces defined on FRAME.
4059 For internal use only. */)
4062 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4063 return f
->face_alist
;
4067 /* Return a hash code for Lisp string STRING with case ignored. Used
4068 below in computing a hash value for a Lisp face. */
4070 static inline unsigned
4071 hash_string_case_insensitive (Lisp_Object string
)
4073 const unsigned char *s
;
4075 eassert (STRINGP (string
));
4076 for (s
= SDATA (string
); *s
; ++s
)
4077 hash
= (hash
<< 1) ^ c_tolower (*s
);
4082 /* Return a hash code for face attribute vector V. */
4084 static inline unsigned
4085 lface_hash (Lisp_Object
*v
)
4087 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4088 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4089 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4090 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4091 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4092 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4093 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4094 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4098 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4099 considering charsets/registries). They do if they specify the same
4100 family, point size, weight, width, slant, and font. Both
4101 LFACE1 and LFACE2 must be fully-specified. */
4104 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4106 eassert (lface_fully_specified_p (lface1
)
4107 && lface_fully_specified_p (lface2
));
4108 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4109 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4110 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4111 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4112 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4113 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4114 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4115 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4116 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4117 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4118 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4119 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4120 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4121 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4127 /***********************************************************************
4129 ***********************************************************************/
4131 /* Allocate and return a new realized face for Lisp face attribute
4134 static struct face
*
4135 make_realized_face (Lisp_Object
*attr
)
4137 struct face
*face
= xzalloc (sizeof *face
);
4138 face
->ascii_face
= face
;
4139 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4144 /* Free realized face FACE, including its X resources. FACE may
4148 free_realized_face (struct frame
*f
, struct face
*face
)
4152 #ifdef HAVE_WINDOW_SYSTEM
4153 if (FRAME_WINDOW_P (f
))
4155 /* Free fontset of FACE if it is ASCII face. */
4156 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4157 free_face_fontset (f
, face
);
4162 font_done_for_face (f
, face
);
4163 x_free_gc (f
, face
->gc
);
4168 free_face_colors (f
, face
);
4169 x_destroy_bitmap (f
, face
->stipple
);
4171 #endif /* HAVE_WINDOW_SYSTEM */
4178 /* Prepare face FACE for subsequent display on frame F. This
4179 allocated GCs if they haven't been allocated yet or have been freed
4180 by clearing the face cache. */
4183 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4185 #ifdef HAVE_WINDOW_SYSTEM
4186 eassert (FRAME_WINDOW_P (f
));
4191 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4193 xgcv
.foreground
= face
->foreground
;
4194 xgcv
.background
= face
->background
;
4195 #ifdef HAVE_X_WINDOWS
4196 xgcv
.graphics_exposures
= False
;
4200 #ifdef HAVE_X_WINDOWS
4203 xgcv
.fill_style
= FillOpaqueStippled
;
4204 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4205 mask
|= GCFillStyle
| GCStipple
;
4208 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4210 font_prepare_for_face (f
, face
);
4213 #endif /* HAVE_WINDOW_SYSTEM */
4217 /* Returns the `distance' between the colors X and Y. */
4220 color_distance (XColor
*x
, XColor
*y
)
4222 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4223 Quoting from that paper:
4225 This formula has results that are very close to L*u*v* (with the
4226 modified lightness curve) and, more importantly, it is a more even
4227 algorithm: it does not have a range of colors where it suddenly
4228 gives far from optimal results.
4230 See <http://www.compuphase.com/cmetric.htm> for more info. */
4232 long r
= (x
->red
- y
->red
) >> 8;
4233 long g
= (x
->green
- y
->green
) >> 8;
4234 long b
= (x
->blue
- y
->blue
) >> 8;
4235 long r_mean
= (x
->red
+ y
->red
) >> 9;
4238 (((512 + r_mean
) * r
* r
) >> 8)
4240 + (((767 - r_mean
) * b
* b
) >> 8);
4244 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4245 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4246 COLOR1 and COLOR2 may be either strings containing the color name,
4247 or lists of the form (RED GREEN BLUE).
4248 If FRAME is unspecified or nil, the current frame is used. */)
4249 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4252 XColor cdef1
, cdef2
;
4255 frame
= selected_frame
;
4256 CHECK_LIVE_FRAME (frame
);
4259 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4260 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4261 signal_error ("Invalid color", color1
);
4262 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4263 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4264 signal_error ("Invalid color", color2
);
4266 return make_number (color_distance (&cdef1
, &cdef2
));
4270 /***********************************************************************
4272 ***********************************************************************/
4274 /* Return a new face cache for frame F. */
4276 static struct face_cache
*
4277 make_face_cache (struct frame
*f
)
4279 struct face_cache
*c
;
4282 c
= xzalloc (sizeof *c
);
4283 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4284 c
->buckets
= xzalloc (size
);
4286 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4288 c
->menu_face_changed_p
= menu_face_changed_default
;
4293 /* Clear out all graphics contexts for all realized faces, except for
4294 the basic faces. This should be done from time to time just to avoid
4295 keeping too many graphics contexts that are no longer needed. */
4298 clear_face_gcs (struct face_cache
*c
)
4300 if (c
&& FRAME_WINDOW_P (c
->f
))
4302 #ifdef HAVE_WINDOW_SYSTEM
4304 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4306 struct face
*face
= c
->faces_by_id
[i
];
4307 if (face
&& face
->gc
)
4311 font_done_for_face (c
->f
, face
);
4312 x_free_gc (c
->f
, face
->gc
);
4317 #endif /* HAVE_WINDOW_SYSTEM */
4322 /* Free all realized faces in face cache C, including basic faces.
4323 C may be null. If faces are freed, make sure the frame's current
4324 matrix is marked invalid, so that a display caused by an expose
4325 event doesn't try to use faces we destroyed. */
4328 free_realized_faces (struct face_cache
*c
)
4333 struct frame
*f
= c
->f
;
4335 /* We must block input here because we can't process X events
4336 safely while only some faces are freed, or when the frame's
4337 current matrix still references freed faces. */
4340 for (i
= 0; i
< c
->used
; ++i
)
4342 free_realized_face (f
, c
->faces_by_id
[i
]);
4343 c
->faces_by_id
[i
] = NULL
;
4347 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4348 memset (c
->buckets
, 0, size
);
4350 /* Must do a thorough redisplay the next time. Mark current
4351 matrices as invalid because they will reference faces freed
4352 above. This function is also called when a frame is
4353 destroyed. In this case, the root window of F is nil. */
4354 if (WINDOWP (f
->root_window
))
4356 clear_current_matrices (f
);
4357 ++windows_or_buffers_changed
;
4365 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4366 This is done after attributes of a named face have been changed,
4367 because we can't tell which realized faces depend on that face. */
4370 free_all_realized_faces (Lisp_Object frame
)
4375 FOR_EACH_FRAME (rest
, frame
)
4376 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4379 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4383 /* Free face cache C and faces in it, including their X resources. */
4386 free_face_cache (struct face_cache
*c
)
4390 free_realized_faces (c
);
4392 xfree (c
->faces_by_id
);
4398 /* Cache realized face FACE in face cache C. HASH is the hash value
4399 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4400 FACE), insert the new face to the beginning of the collision list
4401 of the face hash table of C. Otherwise, add the new face to the
4402 end of the collision list. This way, lookup_face can quickly find
4403 that a requested face is not cached. */
4406 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4408 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4412 if (face
->ascii_face
!= face
)
4414 struct face
*last
= c
->buckets
[i
];
4425 c
->buckets
[i
] = face
;
4426 face
->prev
= face
->next
= NULL
;
4432 face
->next
= c
->buckets
[i
];
4434 face
->next
->prev
= face
;
4435 c
->buckets
[i
] = face
;
4438 /* Find a free slot in C->faces_by_id and use the index of the free
4439 slot as FACE->id. */
4440 for (i
= 0; i
< c
->used
; ++i
)
4441 if (c
->faces_by_id
[i
] == NULL
)
4446 /* Check that FACE got a unique id. */
4451 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4452 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4458 #endif /* GLYPH_DEBUG */
4460 /* Maybe enlarge C->faces_by_id. */
4463 if (c
->used
== c
->size
)
4464 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4465 sizeof *c
->faces_by_id
);
4469 c
->faces_by_id
[i
] = face
;
4473 /* Remove face FACE from cache C. */
4476 uncache_face (struct face_cache
*c
, struct face
*face
)
4478 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4481 face
->prev
->next
= face
->next
;
4483 c
->buckets
[i
] = face
->next
;
4486 face
->next
->prev
= face
->prev
;
4488 c
->faces_by_id
[face
->id
] = NULL
;
4489 if (face
->id
== c
->used
)
4494 /* Look up a realized face with face attributes ATTR in the face cache
4495 of frame F. The face will be used to display ASCII characters.
4496 Value is the ID of the face found. If no suitable face is found,
4497 realize a new one. */
4500 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4502 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4507 eassert (cache
!= NULL
);
4508 check_lface_attrs (attr
);
4510 /* Look up ATTR in the face cache. */
4511 hash
= lface_hash (attr
);
4512 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4514 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4516 if (face
->ascii_face
!= face
)
4518 /* There's no more ASCII face. */
4522 if (face
->hash
== hash
4523 && lface_equal_p (face
->lface
, attr
))
4527 /* If not found, realize a new face. */
4529 face
= realize_face (cache
, attr
, -1);
4532 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4533 #endif /* GLYPH_DEBUG */
4538 #ifdef HAVE_WINDOW_SYSTEM
4539 /* Look up a realized face that has the same attributes as BASE_FACE
4540 except for the font in the face cache of frame F. If FONT-OBJECT
4541 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4542 the face has no font. Value is the ID of the face found. If no
4543 suitable face is found, realize a new one. */
4546 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4548 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4553 eassert (cache
!= NULL
);
4554 base_face
= base_face
->ascii_face
;
4555 hash
= lface_hash (base_face
->lface
);
4556 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4558 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4560 if (face
->ascii_face
== face
)
4562 if (face
->ascii_face
== base_face
4563 && face
->font
== (NILP (font_object
) ? NULL
4564 : XFONT_OBJECT (font_object
))
4565 && lface_equal_p (face
->lface
, base_face
->lface
))
4569 /* If not found, realize a new face. */
4570 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4573 #endif /* HAVE_WINDOW_SYSTEM */
4575 /* Return the face id of the realized face for named face SYMBOL on
4576 frame F suitable for displaying ASCII characters. Value is -1 if
4577 the face couldn't be determined, which might happen if the default
4578 face isn't realized and cannot be realized. */
4581 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4583 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4584 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4585 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4587 if (default_face
== NULL
)
4589 if (!realize_basic_faces (f
))
4591 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4592 if (default_face
== NULL
)
4593 abort (); /* realize_basic_faces must have set it up */
4596 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4599 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4600 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4602 return lookup_face (f
, attrs
);
4606 /* Return the display face-id of the basic face whose canonical face-id
4607 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4608 basic face has bee remapped via Vface_remapping_alist. This function is
4609 conservative: if something goes wrong, it will simply return FACE_ID
4610 rather than signal an error. */
4613 lookup_basic_face (struct frame
*f
, int face_id
)
4615 Lisp_Object name
, mapping
;
4616 int remapped_face_id
;
4618 if (NILP (Vface_remapping_alist
))
4619 return face_id
; /* Nothing to do. */
4623 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4624 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4625 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4626 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4627 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4628 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4629 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4630 case BORDER_FACE_ID
: name
= Qborder
; break;
4631 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4632 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4633 case MENU_FACE_ID
: name
= Qmenu
; break;
4636 abort (); /* the caller is supposed to pass us a basic face id */
4639 /* Do a quick scan through Vface_remapping_alist, and return immediately
4640 if there is no remapping for face NAME. This is just an optimization
4641 for the very common no-remapping case. */
4642 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4644 return face_id
; /* Give up. */
4646 /* If there is a remapping entry, lookup the face using NAME, which will
4647 handle the remapping too. */
4648 remapped_face_id
= lookup_named_face (f
, name
, 0);
4649 if (remapped_face_id
< 0)
4650 return face_id
; /* Give up. */
4652 return remapped_face_id
;
4656 /* Return a face for charset ASCII that is like the face with id
4657 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4658 STEPS < 0 means larger. Value is the id of the face. */
4661 smaller_face (struct frame
*f
, int face_id
, int steps
)
4663 #ifdef HAVE_WINDOW_SYSTEM
4665 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4666 int pt
, last_pt
, last_height
;
4669 struct face
*new_face
;
4671 /* If not called for an X frame, just return the original face. */
4672 if (FRAME_TERMCAP_P (f
))
4675 /* Try in increments of 1/2 pt. */
4676 delta
= steps
< 0 ? 5 : -5;
4677 steps
= eabs (steps
);
4679 face
= FACE_FROM_ID (f
, face_id
);
4680 memcpy (attrs
, face
->lface
, sizeof attrs
);
4681 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4682 new_face_id
= face_id
;
4683 last_height
= FONT_HEIGHT (face
->font
);
4687 /* Give up if we cannot find a font within 10pt. */
4688 && eabs (last_pt
- pt
) < 100)
4690 /* Look up a face for a slightly smaller/larger font. */
4692 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4693 new_face_id
= lookup_face (f
, attrs
);
4694 new_face
= FACE_FROM_ID (f
, new_face_id
);
4696 /* If height changes, count that as one step. */
4697 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4698 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4701 last_height
= FONT_HEIGHT (new_face
->font
);
4708 #else /* not HAVE_WINDOW_SYSTEM */
4712 #endif /* not HAVE_WINDOW_SYSTEM */
4716 /* Return a face for charset ASCII that is like the face with id
4717 FACE_ID on frame F, but has height HEIGHT. */
4720 face_with_height (struct frame
*f
, int face_id
, int height
)
4722 #ifdef HAVE_WINDOW_SYSTEM
4724 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4726 if (FRAME_TERMCAP_P (f
)
4730 face
= FACE_FROM_ID (f
, face_id
);
4731 memcpy (attrs
, face
->lface
, sizeof attrs
);
4732 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4733 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4734 face_id
= lookup_face (f
, attrs
);
4735 #endif /* HAVE_WINDOW_SYSTEM */
4741 /* Return the face id of the realized face for named face SYMBOL on
4742 frame F suitable for displaying ASCII characters, and use
4743 attributes of the face FACE_ID for attributes that aren't
4744 completely specified by SYMBOL. This is like lookup_named_face,
4745 except that the default attributes come from FACE_ID, not from the
4746 default face. FACE_ID is assumed to be already realized. */
4749 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4752 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4753 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4754 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4759 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4762 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4763 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4764 return lookup_face (f
, attrs
);
4767 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4768 Sface_attributes_as_vector
, 1, 1, 0,
4769 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4773 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4775 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4782 /***********************************************************************
4783 Face capability testing
4784 ***********************************************************************/
4787 /* If the distance (as returned by color_distance) between two colors is
4788 less than this, then they are considered the same, for determining
4789 whether a color is supported or not. The range of values is 0-65535. */
4791 #define TTY_SAME_COLOR_THRESHOLD 10000
4793 #ifdef HAVE_WINDOW_SYSTEM
4795 /* Return non-zero if all the face attributes in ATTRS are supported
4796 on the window-system frame F.
4798 The definition of `supported' is somewhat heuristic, but basically means
4799 that a face containing all the attributes in ATTRS, when merged with the
4800 default face for display, can be represented in a way that's
4802 \(1) different in appearance than the default face, and
4803 \(2) `close in spirit' to what the attributes specify, if not exact. */
4806 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4807 struct face
*def_face
)
4809 Lisp_Object
*def_attrs
= def_face
->lface
;
4811 /* Check that other specified attributes are different that the default
4813 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4814 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4815 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4816 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4817 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4818 def_attrs
[LFACE_INVERSE_INDEX
]))
4819 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4820 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4821 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4822 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4823 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4824 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4825 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4826 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4827 def_attrs
[LFACE_STIPPLE_INDEX
]))
4828 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4829 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4830 def_attrs
[LFACE_OVERLINE_INDEX
]))
4831 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4832 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4833 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4834 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4835 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4836 def_attrs
[LFACE_BOX_INDEX
])))
4839 /* Check font-related attributes, as those are the most commonly
4840 "unsupported" on a window-system (because of missing fonts). */
4841 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4842 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4843 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4844 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4845 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4846 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4850 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4853 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4855 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4857 face_id
= lookup_face (f
, merged_attrs
);
4858 face
= FACE_FROM_ID (f
, face_id
);
4861 error ("Cannot make face");
4863 /* If the font is the same, or no font is found, then not
4865 if (face
->font
== def_face
->font
4868 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4869 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4873 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4874 || face
->font
->driver
->case_sensitive
)
4876 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4877 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4878 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4879 s2
, make_number (0), Qnil
, Qt
), Qt
))
4885 /* Everything checks out, this face is supported. */
4889 #endif /* HAVE_WINDOW_SYSTEM */
4891 /* Return non-zero if all the face attributes in ATTRS are supported
4894 The definition of `supported' is somewhat heuristic, but basically means
4895 that a face containing all the attributes in ATTRS, when merged
4896 with the default face for display, can be represented in a way that's
4898 \(1) different in appearance than the default face, and
4899 \(2) `close in spirit' to what the attributes specify, if not exact.
4901 Point (2) implies that a `:weight black' attribute will be satisfied
4902 by any terminal that can display bold, and a `:foreground "yellow"' as
4903 long as the terminal can display a yellowish color, but `:slant italic'
4904 will _not_ be satisfied by the tty display code's automatic
4905 substitution of a `dim' face for italic. */
4908 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4909 struct face
*def_face
)
4912 Lisp_Object val
, fg
, bg
;
4913 XColor fg_tty_color
, fg_std_color
;
4914 XColor bg_tty_color
, bg_std_color
;
4915 unsigned test_caps
= 0;
4916 Lisp_Object
*def_attrs
= def_face
->lface
;
4918 /* First check some easy-to-check stuff; ttys support none of the
4919 following attributes, so we can just return false if any are requested
4920 (even if `nominal' values are specified, we should still return false,
4921 as that will be the same value that the default face uses). We
4922 consider :slant unsupportable on ttys, even though the face code
4923 actually `fakes' them using a dim attribute if possible. This is
4924 because the faked result is too different from what the face
4926 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4927 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4928 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4929 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4930 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4931 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4932 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4933 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4936 /* Test for terminal `capabilities' (non-color character attributes). */
4938 /* font weight (bold/dim) */
4939 val
= attrs
[LFACE_WEIGHT_INDEX
];
4940 if (!UNSPECIFIEDP (val
)
4941 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4943 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4947 if (def_weight
> 100)
4948 return 0; /* same as default */
4949 test_caps
= TTY_CAP_BOLD
;
4951 else if (weight
< 100)
4953 if (def_weight
< 100)
4954 return 0; /* same as default */
4955 test_caps
= TTY_CAP_DIM
;
4957 else if (def_weight
== 100)
4958 return 0; /* same as default */
4962 val
= attrs
[LFACE_SLANT_INDEX
];
4963 if (!UNSPECIFIEDP (val
)
4964 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4966 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4967 if (slant
== 100 || slant
== def_slant
)
4968 return 0; /* same as default */
4970 test_caps
|= TTY_CAP_ITALIC
;
4974 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4975 if (!UNSPECIFIEDP (val
))
4978 return 0; /* ttys can't use colored underlines */
4979 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4980 return 0; /* same as default */
4982 test_caps
|= TTY_CAP_UNDERLINE
;
4986 val
= attrs
[LFACE_INVERSE_INDEX
];
4987 if (!UNSPECIFIEDP (val
))
4989 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4990 return 0; /* same as default */
4992 test_caps
|= TTY_CAP_INVERSE
;
4996 /* Color testing. */
4998 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4999 we use them when calling `tty_capable_p' below, even if the face
5000 specifies no colors. */
5001 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5002 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5004 /* Check if foreground color is close enough. */
5005 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5008 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5010 if (face_attr_equal_p (fg
, def_fg
))
5011 return 0; /* same as default */
5012 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5013 return 0; /* not a valid color */
5014 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5015 > TTY_SAME_COLOR_THRESHOLD
)
5016 return 0; /* displayed color is too different */
5018 /* Make sure the color is really different than the default. */
5020 XColor def_fg_color
;
5021 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5022 && (color_distance (&fg_tty_color
, &def_fg_color
)
5023 <= TTY_SAME_COLOR_THRESHOLD
))
5028 /* Check if background color is close enough. */
5029 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5032 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5034 if (face_attr_equal_p (bg
, def_bg
))
5035 return 0; /* same as default */
5036 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5037 return 0; /* not a valid color */
5038 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5039 > TTY_SAME_COLOR_THRESHOLD
)
5040 return 0; /* displayed color is too different */
5042 /* Make sure the color is really different than the default. */
5044 XColor def_bg_color
;
5045 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5046 && (color_distance (&bg_tty_color
, &def_bg_color
)
5047 <= TTY_SAME_COLOR_THRESHOLD
))
5052 /* If both foreground and background are requested, see if the
5053 distance between them is OK. We just check to see if the distance
5054 between the tty's foreground and background is close enough to the
5055 distance between the standard foreground and background. */
5056 if (STRINGP (fg
) && STRINGP (bg
))
5059 = (color_distance (&fg_std_color
, &bg_std_color
)
5060 - color_distance (&fg_tty_color
, &bg_tty_color
));
5061 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5062 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5067 /* See if the capabilities we selected above are supported, with the
5069 if (test_caps
!= 0 &&
5070 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
5071 bg_tty_color
.pixel
))
5075 /* Hmmm, everything checks out, this terminal must support this face. */
5080 DEFUN ("display-supports-face-attributes-p",
5081 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5083 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5084 The optional argument DISPLAY can be a display name, a frame, or
5085 nil (meaning the selected frame's display).
5087 The definition of `supported' is somewhat heuristic, but basically means
5088 that a face containing all the attributes in ATTRIBUTES, when merged
5089 with the default face for display, can be represented in a way that's
5091 \(1) different in appearance than the default face, and
5092 \(2) `close in spirit' to what the attributes specify, if not exact.
5094 Point (2) implies that a `:weight black' attribute will be satisfied by
5095 any display that can display bold, and a `:foreground \"yellow\"' as long
5096 as it can display a yellowish color, but `:slant italic' will _not_ be
5097 satisfied by the tty display code's automatic substitution of a `dim'
5098 face for italic. */)
5099 (Lisp_Object attributes
, Lisp_Object display
)
5101 int supports
= 0, i
;
5104 struct face
*def_face
;
5105 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5107 if (noninteractive
|| !initialized
)
5108 /* We may not be able to access low-level face information in batch
5109 mode, or before being dumped, and this function is not going to
5110 be very useful in those cases anyway, so just give up. */
5114 frame
= selected_frame
;
5115 else if (FRAMEP (display
))
5119 /* Find any frame on DISPLAY. */
5120 Lisp_Object fl_tail
;
5123 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5125 frame
= XCAR (fl_tail
);
5126 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5127 XFRAME (frame
)->param_alist
)),
5133 CHECK_LIVE_FRAME (frame
);
5136 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5137 attrs
[i
] = Qunspecified
;
5138 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5140 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5141 if (def_face
== NULL
)
5143 if (! realize_basic_faces (f
))
5144 error ("Cannot realize default face");
5145 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5146 if (def_face
== NULL
)
5147 abort (); /* realize_basic_faces must have set it up */
5150 /* Dispatch to the appropriate handler. */
5151 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5152 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5153 #ifdef HAVE_WINDOW_SYSTEM
5155 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5158 return supports
? Qt
: Qnil
;
5162 /***********************************************************************
5164 ***********************************************************************/
5166 DEFUN ("internal-set-font-selection-order",
5167 Finternal_set_font_selection_order
,
5168 Sinternal_set_font_selection_order
, 1, 1, 0,
5169 doc
: /* Set font selection order for face font selection to ORDER.
5170 ORDER must be a list of length 4 containing the symbols `:width',
5171 `:height', `:weight', and `:slant'. Face attributes appearing
5172 first in ORDER are matched first, e.g. if `:height' appears before
5173 `:weight' in ORDER, font selection first tries to find a font with
5174 a suitable height, and then tries to match the font weight.
5180 int indices
[DIM (font_sort_order
)];
5183 memset (indices
, 0, sizeof indices
);
5187 CONSP (list
) && i
< DIM (indices
);
5188 list
= XCDR (list
), ++i
)
5190 Lisp_Object attr
= XCAR (list
);
5193 if (EQ (attr
, QCwidth
))
5195 else if (EQ (attr
, QCheight
))
5196 xlfd
= XLFD_POINT_SIZE
;
5197 else if (EQ (attr
, QCweight
))
5199 else if (EQ (attr
, QCslant
))
5204 if (indices
[i
] != 0)
5209 if (!NILP (list
) || i
!= DIM (indices
))
5210 signal_error ("Invalid font sort order", order
);
5211 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5212 if (indices
[i
] == 0)
5213 signal_error ("Invalid font sort order", order
);
5215 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5217 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5218 free_all_realized_faces (Qnil
);
5221 font_update_sort_order (font_sort_order
);
5227 DEFUN ("internal-set-alternative-font-family-alist",
5228 Finternal_set_alternative_font_family_alist
,
5229 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5230 doc
: /* Define alternative font families to try in face font selection.
5231 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5232 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5233 be found. Value is ALIST. */)
5236 Lisp_Object entry
, tail
, tail2
;
5239 alist
= Fcopy_sequence (alist
);
5240 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5242 entry
= XCAR (tail
);
5244 entry
= Fcopy_sequence (entry
);
5245 XSETCAR (tail
, entry
);
5246 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5247 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5250 Vface_alternative_font_family_alist
= alist
;
5251 free_all_realized_faces (Qnil
);
5256 DEFUN ("internal-set-alternative-font-registry-alist",
5257 Finternal_set_alternative_font_registry_alist
,
5258 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5259 doc
: /* Define alternative font registries to try in face font selection.
5260 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5261 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5262 be found. Value is ALIST. */)
5265 Lisp_Object entry
, tail
, tail2
;
5268 alist
= Fcopy_sequence (alist
);
5269 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5271 entry
= XCAR (tail
);
5273 entry
= Fcopy_sequence (entry
);
5274 XSETCAR (tail
, entry
);
5275 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5276 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5278 Vface_alternative_font_registry_alist
= alist
;
5279 free_all_realized_faces (Qnil
);
5284 #ifdef HAVE_WINDOW_SYSTEM
5286 /* Return the fontset id of the base fontset name or alias name given
5287 by the fontset attribute of ATTRS. Value is -1 if the fontset
5288 attribute of ATTRS doesn't name a fontset. */
5291 face_fontset (Lisp_Object
*attrs
)
5295 name
= attrs
[LFACE_FONTSET_INDEX
];
5296 if (!STRINGP (name
))
5298 return fs_query_fontset (name
, 0);
5301 #endif /* HAVE_WINDOW_SYSTEM */
5305 /***********************************************************************
5307 ***********************************************************************/
5309 /* Realize basic faces on frame F. Value is zero if frame parameters
5310 of F don't contain enough information needed to realize the default
5314 realize_basic_faces (struct frame
*f
)
5317 ptrdiff_t count
= SPECPDL_INDEX ();
5319 /* Block input here so that we won't be surprised by an X expose
5320 event, for instance, without having the faces set up. */
5322 specbind (Qscalable_fonts_allowed
, Qt
);
5324 if (realize_default_face (f
))
5326 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5327 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5328 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5329 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5330 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5331 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5332 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5333 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5334 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5335 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5336 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5338 /* Reflect changes in the `menu' face in menu bars. */
5339 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5341 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5342 #ifdef USE_X_TOOLKIT
5343 if (FRAME_WINDOW_P (f
))
5344 x_update_menu_appearance (f
);
5351 unbind_to (count
, Qnil
);
5357 /* Realize the default face on frame F. If the face is not fully
5358 specified, make it fully-specified. Attributes of the default face
5359 that are not explicitly specified are taken from frame parameters. */
5362 realize_default_face (struct frame
*f
)
5364 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5366 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5369 /* If the `default' face is not yet known, create it. */
5370 lface
= lface_from_face_name (f
, Qdefault
, 0);
5374 XSETFRAME (frame
, f
);
5375 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5378 #ifdef HAVE_WINDOW_SYSTEM
5379 if (FRAME_WINDOW_P (f
))
5381 Lisp_Object font_object
;
5383 XSETFONT (font_object
, FRAME_FONT (f
));
5384 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5385 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5386 f
->default_face_done_p
= 1;
5388 #endif /* HAVE_WINDOW_SYSTEM */
5390 if (!FRAME_WINDOW_P (f
))
5392 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5393 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5394 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5395 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5396 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5397 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5398 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5399 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5400 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5401 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5404 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5405 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5407 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5408 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5410 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5411 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5413 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5414 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5416 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5417 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5419 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5421 /* This function is called so early that colors are not yet
5422 set in the frame parameter list. */
5423 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5425 if (CONSP (color
) && STRINGP (XCDR (color
)))
5426 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5427 else if (FRAME_WINDOW_P (f
))
5429 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5430 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5435 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5437 /* This function is called so early that colors are not yet
5438 set in the frame parameter list. */
5439 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5440 if (CONSP (color
) && STRINGP (XCDR (color
)))
5441 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5442 else if (FRAME_WINDOW_P (f
))
5444 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5445 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5450 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5451 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5453 /* Realize the face; it must be fully-specified now. */
5454 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5455 check_lface (lface
);
5456 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5457 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5459 #ifdef HAVE_WINDOW_SYSTEM
5460 #ifdef HAVE_X_WINDOWS
5461 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5463 /* This can happen when making a frame on a display that does
5464 not support the default font. */
5468 /* Otherwise, the font specified for the frame was not
5469 acceptable as a font for the default face (perhaps because
5470 auto-scaled fonts are rejected), so we must adjust the frame
5472 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5474 #endif /* HAVE_X_WINDOWS */
5475 #endif /* HAVE_WINDOW_SYSTEM */
5480 /* Realize basic faces other than the default face in face cache C.
5481 SYMBOL is the face name, ID is the face id the realized face must
5482 have. The default face must have been realized already. */
5485 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5487 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5488 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5489 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5490 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5492 /* The default face must exist and be fully specified. */
5493 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5494 check_lface_attrs (attrs
);
5495 eassert (lface_fully_specified_p (attrs
));
5497 /* If SYMBOL isn't know as a face, create it. */
5501 XSETFRAME (frame
, f
);
5502 lface
= Finternal_make_lisp_face (symbol
, frame
);
5505 /* Merge SYMBOL's face with the default face. */
5506 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5507 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5509 /* Realize the face. */
5510 realize_face (c
, attrs
, id
);
5514 /* Realize the fully-specified face with attributes ATTRS in face
5515 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5516 non-negative, it is an ID of face to remove before caching the new
5517 face. Value is a pointer to the newly created realized face. */
5519 static struct face
*
5520 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5524 /* LFACE must be fully specified. */
5525 eassert (cache
!= NULL
);
5526 check_lface_attrs (attrs
);
5528 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5530 /* Remove the former face. */
5531 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5532 uncache_face (cache
, former_face
);
5533 free_realized_face (cache
->f
, former_face
);
5534 SET_FRAME_GARBAGED (cache
->f
);
5537 if (FRAME_WINDOW_P (cache
->f
))
5538 face
= realize_x_face (cache
, attrs
);
5539 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5540 face
= realize_tty_face (cache
, attrs
);
5541 else if (FRAME_INITIAL_P (cache
->f
))
5543 /* Create a dummy face. */
5544 face
= make_realized_face (attrs
);
5549 /* Insert the new face. */
5550 cache_face (cache
, face
, lface_hash (attrs
));
5555 #ifdef HAVE_WINDOW_SYSTEM
5556 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5557 same attributes as BASE_FACE except for the font on frame F.
5558 FONT-OBJECT may be nil, in which case, realized a face of
5561 static struct face
*
5562 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5563 struct face
*base_face
)
5565 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5568 face
= xmalloc (sizeof *face
);
5573 = (! NILP (font_object
)
5574 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5575 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5577 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5578 face
->colors_copied_bitwise_p
= 1;
5579 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5582 cache_face (cache
, face
, face
->hash
);
5586 #endif /* HAVE_WINDOW_SYSTEM */
5589 /* Realize the fully-specified face with attributes ATTRS in face
5590 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5591 the new face doesn't share font with the default face, a fontname
5592 is allocated from the heap and set in `font_name' of the new face,
5593 but it is not yet loaded here. Value is a pointer to the newly
5594 created realized face. */
5596 static struct face
*
5597 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5599 struct face
*face
= NULL
;
5600 #ifdef HAVE_WINDOW_SYSTEM
5601 struct face
*default_face
;
5603 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5605 eassert (FRAME_WINDOW_P (cache
->f
));
5607 /* Allocate a new realized face. */
5608 face
= make_realized_face (attrs
);
5609 face
->ascii_face
= face
;
5613 /* Determine the font to use. Most of the time, the font will be
5614 the same as the font of the default face, so try that first. */
5615 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5617 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5619 face
->font
= default_face
->font
;
5621 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5625 /* If the face attribute ATTRS specifies a fontset, use it as
5626 the base of a new realized fontset. Otherwise, use the same
5627 base fontset as of the default face. The base determines
5628 registry and encoding of a font. It may also determine
5629 foundry and family. The other fields of font name pattern
5630 are constructed from ATTRS. */
5631 int fontset
= face_fontset (attrs
);
5633 /* If we are realizing the default face, ATTRS should specify a
5634 fontset. In other words, if FONTSET is -1, we are not
5635 realizing the default face, thus the default face should have
5636 already been realized. */
5640 fontset
= default_face
->fontset
;
5644 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5645 attrs
[LFACE_FONT_INDEX
]
5646 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5647 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5649 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5650 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5660 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5661 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5662 face
->overstrike
= 1;
5664 /* Load colors, and set remaining attributes. */
5666 load_face_colors (f
, face
, attrs
);
5669 box
= attrs
[LFACE_BOX_INDEX
];
5672 /* A simple box of line width 1 drawn in color given by
5674 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5676 face
->box
= FACE_SIMPLE_BOX
;
5677 face
->box_line_width
= 1;
5679 else if (INTEGERP (box
))
5681 /* Simple box of specified line width in foreground color of the
5683 eassert (XINT (box
) != 0);
5684 face
->box
= FACE_SIMPLE_BOX
;
5685 face
->box_line_width
= XINT (box
);
5686 face
->box_color
= face
->foreground
;
5687 face
->box_color_defaulted_p
= 1;
5689 else if (CONSP (box
))
5691 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5692 being one of `raised' or `sunken'. */
5693 face
->box
= FACE_SIMPLE_BOX
;
5694 face
->box_color
= face
->foreground
;
5695 face
->box_color_defaulted_p
= 1;
5696 face
->box_line_width
= 1;
5700 Lisp_Object keyword
, value
;
5702 keyword
= XCAR (box
);
5710 if (EQ (keyword
, QCline_width
))
5712 if (INTEGERP (value
) && XINT (value
) != 0)
5713 face
->box_line_width
= XINT (value
);
5715 else if (EQ (keyword
, QCcolor
))
5717 if (STRINGP (value
))
5719 face
->box_color
= load_color (f
, face
, value
,
5721 face
->use_box_color_for_shadows_p
= 1;
5724 else if (EQ (keyword
, QCstyle
))
5726 if (EQ (value
, Qreleased_button
))
5727 face
->box
= FACE_RAISED_BOX
;
5728 else if (EQ (value
, Qpressed_button
))
5729 face
->box
= FACE_SUNKEN_BOX
;
5734 /* Text underline, overline, strike-through. */
5736 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5737 if (EQ (underline
, Qt
))
5739 /* Use default color (same as foreground color). */
5740 face
->underline_p
= 1;
5741 face
->underline_type
= FACE_UNDER_LINE
;
5742 face
->underline_defaulted_p
= 1;
5743 face
->underline_color
= 0;
5745 else if (STRINGP (underline
))
5747 /* Use specified color. */
5748 face
->underline_p
= 1;
5749 face
->underline_type
= FACE_UNDER_LINE
;
5750 face
->underline_defaulted_p
= 0;
5751 face
->underline_color
5752 = load_color (f
, face
, underline
,
5753 LFACE_UNDERLINE_INDEX
);
5755 else if (NILP (underline
))
5757 face
->underline_p
= 0;
5758 face
->underline_defaulted_p
= 0;
5759 face
->underline_color
= 0;
5761 else if (CONSP (underline
))
5763 /* `(:color COLOR :style STYLE)'.
5764 STYLE being one of `line' or `wave'. */
5765 face
->underline_p
= 1;
5766 face
->underline_color
= 0;
5767 face
->underline_defaulted_p
= 1;
5768 face
->underline_type
= FACE_UNDER_LINE
;
5770 while (CONSP (underline
))
5772 Lisp_Object keyword
, value
;
5774 keyword
= XCAR (underline
);
5775 underline
= XCDR (underline
);
5777 if (!CONSP (underline
))
5779 value
= XCAR (underline
);
5780 underline
= XCDR (underline
);
5782 if (EQ (keyword
, QCcolor
))
5784 if (EQ (value
, Qforeground_color
))
5786 face
->underline_defaulted_p
= 1;
5787 face
->underline_color
= 0;
5789 else if (STRINGP (value
))
5791 face
->underline_defaulted_p
= 0;
5792 face
->underline_color
= load_color (f
, face
, value
,
5793 LFACE_UNDERLINE_INDEX
);
5796 else if (EQ (keyword
, QCstyle
))
5798 if (EQ (value
, Qline
))
5799 face
->underline_type
= FACE_UNDER_LINE
;
5800 else if (EQ (value
, Qwave
))
5801 face
->underline_type
= FACE_UNDER_WAVE
;
5806 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5807 if (STRINGP (overline
))
5809 face
->overline_color
5810 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5811 LFACE_OVERLINE_INDEX
);
5812 face
->overline_p
= 1;
5814 else if (EQ (overline
, Qt
))
5816 face
->overline_color
= face
->foreground
;
5817 face
->overline_color_defaulted_p
= 1;
5818 face
->overline_p
= 1;
5821 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5822 if (STRINGP (strike_through
))
5824 face
->strike_through_color
5825 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5826 LFACE_STRIKE_THROUGH_INDEX
);
5827 face
->strike_through_p
= 1;
5829 else if (EQ (strike_through
, Qt
))
5831 face
->strike_through_color
= face
->foreground
;
5832 face
->strike_through_color_defaulted_p
= 1;
5833 face
->strike_through_p
= 1;
5836 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5837 if (!NILP (stipple
))
5838 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5839 #endif /* HAVE_WINDOW_SYSTEM */
5845 /* Map a specified color of face FACE on frame F to a tty color index.
5846 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5847 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5848 default foreground/background colors. */
5851 map_tty_color (struct frame
*f
, struct face
*face
,
5852 enum lface_attribute_index idx
, int *defaulted
)
5854 Lisp_Object frame
, color
, def
;
5855 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5856 unsigned long default_pixel
=
5857 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5858 unsigned long pixel
= default_pixel
;
5860 unsigned long default_other_pixel
=
5861 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5864 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5866 XSETFRAME (frame
, f
);
5867 color
= face
->lface
[idx
];
5871 && CONSP (Vtty_defined_color_alist
)
5872 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5875 /* Associations in tty-defined-color-alist are of the form
5876 (NAME INDEX R G B). We need the INDEX part. */
5877 pixel
= XINT (XCAR (XCDR (def
)));
5880 if (pixel
== default_pixel
&& STRINGP (color
))
5882 pixel
= load_color (f
, face
, color
, idx
);
5885 /* If the foreground of the default face is the default color,
5886 use the foreground color defined by the frame. */
5887 if (FRAME_MSDOS_P (f
))
5889 if (pixel
== default_pixel
5890 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5893 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5895 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5896 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5899 else if (pixel
== default_other_pixel
)
5902 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5904 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5905 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5913 face
->foreground
= pixel
;
5915 face
->background
= pixel
;
5919 /* Realize the fully-specified face with attributes ATTRS in face
5920 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5921 Value is a pointer to the newly created realized face. */
5923 static struct face
*
5924 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5928 int face_colors_defaulted
= 0;
5929 struct frame
*f
= cache
->f
;
5931 /* Frame must be a termcap frame. */
5932 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5934 /* Allocate a new realized face. */
5935 face
= make_realized_face (attrs
);
5937 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5940 /* Map face attributes to TTY appearances. */
5941 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5942 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5944 face
->tty_bold_p
= 1;
5946 face
->tty_italic_p
= 1;
5947 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5948 face
->tty_underline_p
= 1;
5949 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5950 face
->tty_reverse_p
= 1;
5952 /* Map color names to color indices. */
5953 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5954 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5956 /* Swap colors if face is inverse-video. If the colors are taken
5957 from the frame colors, they are already inverted, since the
5958 frame-creation function calls x-handle-reverse-video. */
5959 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5961 unsigned long tem
= face
->foreground
;
5962 face
->foreground
= face
->background
;
5963 face
->background
= tem
;
5966 if (tty_suppress_bold_inverse_default_colors_p
5968 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5969 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5970 face
->tty_bold_p
= 0;
5976 DEFUN ("tty-suppress-bold-inverse-default-colors",
5977 Ftty_suppress_bold_inverse_default_colors
,
5978 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5979 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5980 SUPPRESS non-nil means suppress it.
5981 This affects bold faces on TTYs whose foreground is the default background
5982 color of the display and whose background is the default foreground color.
5983 For such faces, the bold face attribute is ignored if this variable
5985 (Lisp_Object suppress
)
5987 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5988 ++face_change_count
;
5994 /***********************************************************************
5996 ***********************************************************************/
5998 /* Return the ID of the face to use to display character CH with face
5999 property PROP on frame F in current_buffer. */
6002 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
6006 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
6011 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6012 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6016 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6017 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6018 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6019 merge_face_ref (f
, prop
, attrs
, 1, 0);
6020 face_id
= lookup_face (f
, attrs
);
6026 /* Return the face ID associated with buffer position POS for
6027 displaying ASCII characters. Return in *ENDPTR the position at
6028 which a different face is needed, as far as text properties and
6029 overlays are concerned. W is a window displaying current_buffer.
6031 REGION_BEG, REGION_END delimit the region, so it can be
6034 LIMIT is a position not to scan beyond. That is to limit the time
6035 this function can take.
6037 If MOUSE is non-zero, use the character's mouse-face, not its face.
6039 BASE_FACE_ID, if non-negative, specifies a base face id to use
6040 instead of DEFAULT_FACE_ID.
6042 The face returned is suitable for displaying ASCII characters. */
6045 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
6046 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6047 ptrdiff_t *endptr
, ptrdiff_t limit
,
6048 int mouse
, int base_face_id
)
6050 struct frame
*f
= XFRAME (w
->frame
);
6051 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6052 Lisp_Object prop
, position
;
6053 ptrdiff_t i
, noverlays
;
6054 Lisp_Object
*overlay_vec
;
6056 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6057 Lisp_Object limit1
, end
;
6058 struct face
*default_face
;
6060 /* W must display the current buffer. We could write this function
6061 to use the frame and buffer of W, but right now it doesn't. */
6062 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6064 XSETFASTINT (position
, pos
);
6067 if (pos
< region_beg
&& region_beg
< endpos
)
6068 endpos
= region_beg
;
6070 /* Get the `face' or `mouse_face' text property at POS, and
6071 determine the next position at which the property changes. */
6072 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6073 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6074 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6076 endpos
= XINT (end
);
6078 /* Look at properties from overlays. */
6080 ptrdiff_t next_overlay
;
6082 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6083 if (next_overlay
< endpos
)
6084 endpos
= next_overlay
;
6092 if (base_face_id
>= 0)
6093 face_id
= base_face_id
;
6094 else if (NILP (Vface_remapping_alist
))
6095 face_id
= DEFAULT_FACE_ID
;
6097 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
6099 default_face
= FACE_FROM_ID (f
, face_id
);
6102 /* Optimize common cases where we can use the default face. */
6105 && !(pos
>= region_beg
&& pos
< region_end
))
6106 return default_face
->id
;
6108 /* Begin with attributes from the default face. */
6109 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6111 /* Merge in attributes specified via text properties. */
6113 merge_face_ref (f
, prop
, attrs
, 1, 0);
6115 /* Now merge the overlay data. */
6116 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6117 for (i
= 0; i
< noverlays
; i
++)
6122 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6124 merge_face_ref (f
, prop
, attrs
, 1, 0);
6126 oend
= OVERLAY_END (overlay_vec
[i
]);
6127 oendpos
= OVERLAY_POSITION (oend
);
6128 if (oendpos
< endpos
)
6132 /* If in the region, merge in the region face. */
6133 if (pos
>= region_beg
&& pos
< region_end
)
6135 merge_named_face (f
, Qregion
, attrs
, 0);
6137 if (region_end
< endpos
)
6138 endpos
= region_end
;
6143 /* Look up a realized face with the given face attributes,
6144 or realize a new one for ASCII characters. */
6145 return lookup_face (f
, attrs
);
6148 /* Return the face ID at buffer position POS for displaying ASCII
6149 characters associated with overlay strings for overlay OVERLAY.
6151 Like face_at_buffer_position except for OVERLAY. Currently it
6152 simply disregards the `face' properties of all overlays. */
6155 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6156 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6157 ptrdiff_t *endptr
, ptrdiff_t limit
,
6158 int mouse
, Lisp_Object overlay
)
6160 struct frame
*f
= XFRAME (w
->frame
);
6161 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6162 Lisp_Object prop
, position
;
6164 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6165 Lisp_Object limit1
, end
;
6166 struct face
*default_face
;
6168 /* W must display the current buffer. We could write this function
6169 to use the frame and buffer of W, but right now it doesn't. */
6170 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6172 XSETFASTINT (position
, pos
);
6175 if (pos
< region_beg
&& region_beg
< endpos
)
6176 endpos
= region_beg
;
6178 /* Get the `face' or `mouse_face' text property at POS, and
6179 determine the next position at which the property changes. */
6180 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6181 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6182 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6184 endpos
= XINT (end
);
6188 /* Optimize common case where we can use the default face. */
6190 && !(pos
>= region_beg
&& pos
< region_end
)
6191 && NILP (Vface_remapping_alist
))
6192 return DEFAULT_FACE_ID
;
6194 /* Begin with attributes from the default face. */
6195 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6196 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6198 /* Merge in attributes specified via text properties. */
6200 merge_face_ref (f
, prop
, attrs
, 1, 0);
6202 /* If in the region, merge in the region face. */
6203 if (pos
>= region_beg
&& pos
< region_end
)
6205 merge_named_face (f
, Qregion
, attrs
, 0);
6207 if (region_end
< endpos
)
6208 endpos
= region_end
;
6213 /* Look up a realized face with the given face attributes,
6214 or realize a new one for ASCII characters. */
6215 return lookup_face (f
, attrs
);
6219 /* Compute the face at character position POS in Lisp string STRING on
6220 window W, for ASCII characters.
6222 If STRING is an overlay string, it comes from position BUFPOS in
6223 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6224 not an overlay string. W must display the current buffer.
6225 REGION_BEG and REGION_END give the start and end positions of the
6226 region; both are -1 if no region is visible.
6228 BASE_FACE_ID is the id of a face to merge with. For strings coming
6229 from overlays or the `display' property it is the face at BUFPOS.
6231 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6233 Set *ENDPTR to the next position where to check for faces in
6234 STRING; -1 if the face is constant from POS to the end of the
6237 Value is the id of the face to use. The face returned is suitable
6238 for displaying ASCII characters. */
6241 face_at_string_position (struct window
*w
, Lisp_Object string
,
6242 ptrdiff_t pos
, ptrdiff_t bufpos
,
6243 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6244 ptrdiff_t *endptr
, enum face_id base_face_id
,
6247 Lisp_Object prop
, position
, end
, limit
;
6248 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6249 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6250 struct face
*base_face
;
6251 int multibyte_p
= STRING_MULTIBYTE (string
);
6252 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6254 /* Get the value of the face property at the current position within
6255 STRING. Value is nil if there is no face property. */
6256 XSETFASTINT (position
, pos
);
6257 prop
= Fget_text_property (position
, prop_name
, string
);
6259 /* Get the next position at which to check for faces. Value of end
6260 is nil if face is constant all the way to the end of the string.
6261 Otherwise it is a string position where to check faces next.
6262 Limit is the maximum position up to which to check for property
6263 changes in Fnext_single_property_change. Strings are usually
6264 short, so set the limit to the end of the string. */
6265 XSETFASTINT (limit
, SCHARS (string
));
6266 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6268 *endptr
= XFASTINT (end
);
6272 base_face
= FACE_FROM_ID (f
, base_face_id
);
6273 eassert (base_face
);
6275 /* Optimize the default case that there is no face property and we
6276 are not in the region. */
6278 && (base_face_id
!= DEFAULT_FACE_ID
6279 /* BUFPOS <= 0 means STRING is not an overlay string, so
6280 that the region doesn't have to be taken into account. */
6282 || bufpos
< region_beg
6283 || bufpos
>= region_end
)
6285 /* We can't realize faces for different charsets differently
6286 if we don't have fonts, so we can stop here if not working
6287 on a window-system frame. */
6288 || !FRAME_WINDOW_P (f
)
6289 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6290 return base_face
->id
;
6292 /* Begin with attributes from the base face. */
6293 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6295 /* Merge in attributes specified via text properties. */
6297 merge_face_ref (f
, prop
, attrs
, 1, 0);
6299 /* If in the region, merge in the region face. */
6301 && bufpos
>= region_beg
6302 && bufpos
< region_end
)
6303 merge_named_face (f
, Qregion
, attrs
, 0);
6305 /* Look up a realized face with the given face attributes,
6306 or realize a new one for ASCII characters. */
6307 return lookup_face (f
, attrs
);
6311 /* Merge a face into a realized face.
6313 F is frame where faces are (to be) realized.
6315 FACE_NAME is named face to merge.
6317 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6319 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6321 BASE_FACE_ID is realized face to merge into.
6327 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6330 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6331 struct face
*base_face
;
6333 base_face
= FACE_FROM_ID (f
, base_face_id
);
6335 return base_face_id
;
6337 if (EQ (face_name
, Qt
))
6339 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6340 return base_face_id
;
6341 face_name
= lface_id_to_name
[face_id
];
6342 /* When called during make-frame, lookup_derived_face may fail
6343 if the faces are uninitialized. Don't signal an error. */
6344 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6345 return (face_id
>= 0 ? face_id
: base_face_id
);
6348 /* Begin with attributes from the base face. */
6349 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6351 if (!NILP (face_name
))
6353 if (!merge_named_face (f
, face_name
, attrs
, 0))
6354 return base_face_id
;
6360 return base_face_id
;
6361 face
= FACE_FROM_ID (f
, face_id
);
6363 return base_face_id
;
6364 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6367 /* Look up a realized face with the given face attributes,
6368 or realize a new one for ASCII characters. */
6369 return lookup_face (f
, attrs
);
6374 #ifndef HAVE_X_WINDOWS
6375 DEFUN ("x-load-color-file", Fx_load_color_file
,
6376 Sx_load_color_file
, 1, 1, 0,
6377 doc
: /* Create an alist of color entries from an external file.
6379 The file should define one named RGB color per line like so:
6381 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6382 (Lisp_Object filename
)
6385 Lisp_Object cmap
= Qnil
;
6386 Lisp_Object abspath
;
6388 CHECK_STRING (filename
);
6389 abspath
= Fexpand_file_name (filename
, Qnil
);
6391 fp
= fopen (SSDATA (abspath
), "rt");
6395 int red
, green
, blue
;
6400 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6401 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6403 char *name
= buf
+ num
;
6404 num
= strlen (name
) - 1;
6405 if (num
>= 0 && name
[num
] == '\n')
6407 cmap
= Fcons (Fcons (build_string (name
),
6409 make_number (RGB (red
, green
, blue
))),
6411 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6426 /***********************************************************************
6428 ***********************************************************************/
6432 /* Print the contents of the realized face FACE to stderr. */
6435 dump_realized_face (struct face
*face
)
6437 fprintf (stderr
, "ID: %d\n", face
->id
);
6438 #ifdef HAVE_X_WINDOWS
6439 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6441 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6443 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6444 fprintf (stderr
, "background: 0x%lx (%s)\n",
6446 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6448 fprintf (stderr
, "font_name: %s (%s)\n",
6449 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6450 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6451 #ifdef HAVE_X_WINDOWS
6452 fprintf (stderr
, "font = %p\n", face
->font
);
6454 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6455 fprintf (stderr
, "underline: %d (%s)\n",
6457 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6458 fprintf (stderr
, "hash: %d\n", face
->hash
);
6462 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6469 fprintf (stderr
, "font selection order: ");
6470 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6471 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6472 fprintf (stderr
, "\n");
6474 fprintf (stderr
, "alternative fonts: ");
6475 debug_print (Vface_alternative_font_family_alist
);
6476 fprintf (stderr
, "\n");
6478 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6479 Fdump_face (make_number (i
));
6485 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6487 error ("Not a valid face");
6488 dump_realized_face (face
);
6495 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6496 0, 0, 0, doc
: /* */)
6499 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6500 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6501 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6505 #endif /* GLYPH_DEBUG */
6509 /***********************************************************************
6511 ***********************************************************************/
6514 syms_of_xfaces (void)
6516 DEFSYM (Qface
, "face");
6517 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6518 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6519 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6521 /* Lisp face attribute keywords. */
6522 DEFSYM (QCfamily
, ":family");
6523 DEFSYM (QCheight
, ":height");
6524 DEFSYM (QCweight
, ":weight");
6525 DEFSYM (QCslant
, ":slant");
6526 DEFSYM (QCunderline
, ":underline");
6527 DEFSYM (QCinverse_video
, ":inverse-video");
6528 DEFSYM (QCreverse_video
, ":reverse-video");
6529 DEFSYM (QCforeground
, ":foreground");
6530 DEFSYM (QCbackground
, ":background");
6531 DEFSYM (QCstipple
, ":stipple");
6532 DEFSYM (QCwidth
, ":width");
6533 DEFSYM (QCfont
, ":font");
6534 DEFSYM (QCfontset
, ":fontset");
6535 DEFSYM (QCbold
, ":bold");
6536 DEFSYM (QCitalic
, ":italic");
6537 DEFSYM (QCoverline
, ":overline");
6538 DEFSYM (QCstrike_through
, ":strike-through");
6539 DEFSYM (QCbox
, ":box");
6540 DEFSYM (QCinherit
, ":inherit");
6542 /* Symbols used for Lisp face attribute values. */
6543 DEFSYM (QCcolor
, ":color");
6544 DEFSYM (QCline_width
, ":line-width");
6545 DEFSYM (QCstyle
, ":style");
6546 DEFSYM (Qline
, "line");
6547 DEFSYM (Qwave
, "wave");
6548 DEFSYM (Qreleased_button
, "released-button");
6549 DEFSYM (Qpressed_button
, "pressed-button");
6550 DEFSYM (Qnormal
, "normal");
6551 DEFSYM (Qultra_light
, "ultra-light");
6552 DEFSYM (Qextra_light
, "extra-light");
6553 DEFSYM (Qlight
, "light");
6554 DEFSYM (Qsemi_light
, "semi-light");
6555 DEFSYM (Qsemi_bold
, "semi-bold");
6556 DEFSYM (Qbold
, "bold");
6557 DEFSYM (Qextra_bold
, "extra-bold");
6558 DEFSYM (Qultra_bold
, "ultra-bold");
6559 DEFSYM (Qoblique
, "oblique");
6560 DEFSYM (Qitalic
, "italic");
6561 DEFSYM (Qreverse_oblique
, "reverse-oblique");
6562 DEFSYM (Qreverse_italic
, "reverse-italic");
6563 DEFSYM (Qultra_condensed
, "ultra-condensed");
6564 DEFSYM (Qextra_condensed
, "extra-condensed");
6565 DEFSYM (Qcondensed
, "condensed");
6566 DEFSYM (Qsemi_condensed
, "semi-condensed");
6567 DEFSYM (Qsemi_expanded
, "semi-expanded");
6568 DEFSYM (Qexpanded
, "expanded");
6569 DEFSYM (Qextra_expanded
, "extra-expanded");
6570 DEFSYM (Qultra_expanded
, "ultra-expanded");
6571 DEFSYM (Qbackground_color
, "background-color");
6572 DEFSYM (Qforeground_color
, "foreground-color");
6573 DEFSYM (Qunspecified
, "unspecified");
6574 DEFSYM (QCignore_defface
, ":ignore-defface");
6576 DEFSYM (Qface_alias
, "face-alias");
6577 DEFSYM (Qdefault
, "default");
6578 DEFSYM (Qtool_bar
, "tool-bar");
6579 DEFSYM (Qregion
, "region");
6580 DEFSYM (Qfringe
, "fringe");
6581 DEFSYM (Qheader_line
, "header-line");
6582 DEFSYM (Qscroll_bar
, "scroll-bar");
6583 DEFSYM (Qmenu
, "menu");
6584 DEFSYM (Qcursor
, "cursor");
6585 DEFSYM (Qborder
, "border");
6586 DEFSYM (Qmouse
, "mouse");
6587 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6588 DEFSYM (Qvertical_border
, "vertical-border");
6589 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6590 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6591 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6592 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6593 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6595 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6596 staticpro (&Vparam_value_alist
);
6597 Vface_alternative_font_family_alist
= Qnil
;
6598 staticpro (&Vface_alternative_font_family_alist
);
6599 Vface_alternative_font_registry_alist
= Qnil
;
6600 staticpro (&Vface_alternative_font_registry_alist
);
6602 defsubr (&Sinternal_make_lisp_face
);
6603 defsubr (&Sinternal_lisp_face_p
);
6604 defsubr (&Sinternal_set_lisp_face_attribute
);
6605 #ifdef HAVE_WINDOW_SYSTEM
6606 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6608 defsubr (&Scolor_gray_p
);
6609 defsubr (&Scolor_supported_p
);
6610 #ifndef HAVE_X_WINDOWS
6611 defsubr (&Sx_load_color_file
);
6613 defsubr (&Sface_attribute_relative_p
);
6614 defsubr (&Smerge_face_attribute
);
6615 defsubr (&Sinternal_get_lisp_face_attribute
);
6616 defsubr (&Sinternal_lisp_face_attribute_values
);
6617 defsubr (&Sinternal_lisp_face_equal_p
);
6618 defsubr (&Sinternal_lisp_face_empty_p
);
6619 defsubr (&Sinternal_copy_lisp_face
);
6620 defsubr (&Sinternal_merge_in_global_face
);
6621 defsubr (&Sface_font
);
6622 defsubr (&Sframe_face_alist
);
6623 defsubr (&Sdisplay_supports_face_attributes_p
);
6624 defsubr (&Scolor_distance
);
6625 defsubr (&Sinternal_set_font_selection_order
);
6626 defsubr (&Sinternal_set_alternative_font_family_alist
);
6627 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6628 defsubr (&Sface_attributes_as_vector
);
6630 defsubr (&Sdump_face
);
6631 defsubr (&Sshow_face_resources
);
6632 #endif /* GLYPH_DEBUG */
6633 defsubr (&Sclear_face_cache
);
6634 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6636 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6637 defsubr (&Sdump_colors
);
6640 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6641 doc
: /* Limit for font matching.
6642 If an integer > 0, font matching functions won't load more than
6643 that number of fonts when searching for a matching font. */);
6644 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6646 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6647 doc
: /* List of global face definitions (for internal use only.) */);
6648 Vface_new_frame_defaults
= Qnil
;
6650 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6651 doc
: /* Default stipple pattern used on monochrome displays.
6652 This stipple pattern is used on monochrome displays
6653 instead of shades of gray for a face background color.
6654 See `set-face-stipple' for possible values for this variable. */);
6655 Vface_default_stipple
= build_pure_c_string ("gray3");
6657 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6658 doc
: /* An alist of defined terminal colors and their RGB values.
6659 See the docstring of `tty-color-alist' for the details. */);
6660 Vtty_defined_color_alist
= Qnil
;
6662 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6663 doc
: /* Allowed scalable fonts.
6664 A value of nil means don't allow any scalable fonts.
6665 A value of t means allow any scalable font.
6666 Otherwise, value must be a list of regular expressions. A font may be
6667 scaled if its name matches a regular expression in the list.
6668 Note that if value is nil, a scalable font might still be used, if no
6669 other font of the appropriate family and registry is available. */);
6670 Vscalable_fonts_allowed
= Qnil
;
6672 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6673 doc
: /* List of ignored fonts.
6674 Each element is a regular expression that matches names of fonts to
6676 Vface_ignored_fonts
= Qnil
;
6678 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6679 doc
: /* Alist of face remappings.
6680 Each element is of the form:
6682 (FACE . REPLACEMENT),
6684 which causes display of the face FACE to use REPLACEMENT instead.
6685 REPLACEMENT is a face specification, i.e. one of the following:
6688 (2) a property list of attribute/value pairs, or
6689 (3) a list in which each element has the form of (1) or (2).
6691 List values for REPLACEMENT are merged to form the final face
6692 specification, with earlier entries taking precedence, in the same as
6693 as in the `face' text property.
6695 Face-name remapping cycles are suppressed; recursive references use
6696 the underlying face instead of the remapped face. So a remapping of
6699 (FACE EXTRA-FACE... FACE)
6703 (FACE (FACE-ATTR VAL ...) FACE)
6705 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6706 existing definition of FACE. Note that this isn't necessary for the
6707 default face, since every face inherits from the default face.
6709 If this variable is made buffer-local, the face remapping takes effect
6710 only in that buffer. For instance, the mode my-mode could define a
6711 face `my-mode-default', and then in the mode setup function, do:
6713 (set (make-local-variable 'face-remapping-alist)
6714 '((default my-mode-default)))).
6716 Because Emacs normally only redraws screen areas when the underlying
6717 buffer contents change, you may need to call `redraw-display' after
6718 changing this variable for it to take effect. */);
6719 Vface_remapping_alist
= Qnil
;
6721 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6722 doc
: /* Alist of fonts vs the rescaling factors.
6723 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6724 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6725 RESCALE-RATIO is a floating point number to specify how much larger
6726 \(or smaller) font we should use. For instance, if a face requests
6727 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6728 Vface_font_rescale_alist
= Qnil
;
6730 #ifdef HAVE_WINDOW_SYSTEM
6731 defsubr (&Sbitmap_spec_p
);
6732 defsubr (&Sx_list_fonts
);
6733 defsubr (&Sinternal_face_x_get_resource
);
6734 defsubr (&Sx_family_fonts
);