1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2012 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
24 When using Emacs with X, the display style of characters can be
25 changed by defining `faces'. Each face can specify the following
32 3. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 4. Font height in 1/10pt.
37 5. Font weight, e.g. `bold'.
39 6. Font slant, e.g. `italic'.
45 9. Whether or not characters should be underlined, and in what color.
47 10. Whether or not characters should be displayed in inverse video.
49 11. A background stipple, a bitmap.
51 12. Whether or not characters should be overlined, and in what color.
53 13. Whether or not characters should be strike-through, and in what
56 14. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 15. Font-spec, or nil. This is a special attribute.
61 A font-spec is a collection of font attributes (specs).
63 When this attribute is specified, the face uses a font matching
64 with the specs as is except for what overwritten by the specs in
65 the fontset (see below). In addition, the other font-related
66 attributes (1st thru 5th) are updated from the spec.
68 On the other hand, if one of the other font-related attributes are
69 specified, the corresponding specs in this attribute is set to nil.
71 15. A face name or list of face names from which to inherit attributes.
73 16. A specified average font width, which is invisible from Lisp,
74 and is used to ensure that a font specified on the command line,
75 for example, can be matched exactly.
77 17. A fontset name. This is another special attribute.
79 A fontset is a mappings from characters to font-specs, and the
80 specs overwrite the font-spec in the 14th attribute.
83 Faces are frame-local by nature because Emacs allows to define the
84 same named face (face names are symbols) differently for different
85 frames. Each frame has an alist of face definitions for all named
86 faces. The value of a named face in such an alist is a Lisp vector
87 with the symbol `face' in slot 0, and a slot for each of the face
88 attributes mentioned above.
90 There is also a global face alist `Vface_new_frame_defaults'. Face
91 definitions from this list are used to initialize faces of newly
94 A face doesn't have to specify all attributes. Those not specified
95 have a value of `unspecified'. Faces specifying all attributes but
96 the 14th are called `fully-specified'.
101 The display style of a given character in the text is determined by
102 combining several faces. This process is called `face merging'.
103 Any aspect of the display style that isn't specified by overlays or
104 text properties is taken from the `default' face. Since it is made
105 sure that the default face is always fully-specified, face merging
106 always results in a fully-specified face.
111 After all face attributes for a character have been determined by
112 merging faces of that character, that face is `realized'. The
113 realization process maps face attributes to what is physically
114 available on the system where Emacs runs. The result is a
115 `realized face' in form of a struct face which is stored in the
116 face cache of the frame on which it was realized.
118 Face realization is done in the context of the character to display
119 because different fonts may be used for different characters. In
120 other words, for characters that have different font
121 specifications, different realized faces are needed to display
124 Font specification is done by fontsets. See the comment in
125 fontset.c for the details. In the current implementation, all ASCII
126 characters share the same font in a fontset.
128 Faces are at first realized for ASCII characters, and, at that
129 time, assigned a specific realized fontset. Hereafter, we call
130 such a face as `ASCII face'. When a face for a multibyte character
131 is realized, it inherits (thus shares) a fontset of an ASCII face
132 that has the same attributes other than font-related ones.
134 Thus, all realized faces have a realized fontset.
139 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
140 font as ASCII characters. That is because it is expected that
141 unibyte text users specify a font that is suitable both for ASCII
142 and raw 8-bit characters.
147 Font selection tries to find the best available matching font for a
148 given (character, face) combination.
150 If the face specifies a fontset name, that fontset determines a
151 pattern for fonts of the given character. If the face specifies a
152 font name or the other font-related attributes, a fontset is
153 realized from the default fontset. In that case, that
154 specification determines a pattern for ASCII characters and the
155 default fontset determines a pattern for multibyte characters.
157 Available fonts on the system on which Emacs runs are then matched
158 against the font pattern. The result of font selection is the best
159 match for the given face attributes in this font list.
161 Font selection can be influenced by the user.
163 1. The user can specify the relative importance he gives the face
164 attributes width, height, weight, and slant by setting
165 face-font-selection-order (faces.el) to a list of face attribute
166 names. The default is '(:width :height :weight :slant), and means
167 that font selection first tries to find a good match for the font
168 width specified by a face, then---within fonts with that
169 width---tries to find a best match for the specified font height,
172 2. Setting face-font-family-alternatives allows the user to
173 specify alternative font families to try if a family specified by a
176 3. Setting face-font-registry-alternatives allows the user to
177 specify all alternative font registries to try for a face
178 specifying a registry.
180 4. Setting face-ignored-fonts allows the user to ignore specific
184 Character composition.
186 Usually, the realization process is already finished when Emacs
187 actually reflects the desired glyph matrix on the screen. However,
188 on displaying a composition (sequence of characters to be composed
189 on the screen), a suitable font for the components of the
190 composition is selected and realized while drawing them on the
191 screen, i.e. the realization process is delayed but in principle
195 Initialization of basic faces.
197 The faces `default', `modeline' are considered `basic faces'.
198 When redisplay happens the first time for a newly created frame,
199 basic faces are realized for CHARSET_ASCII. Frame parameters are
200 used to fill in unspecified attributes of the default face. */
204 #include <sys/types.h>
205 #include <sys/stat.h>
206 #include <stdio.h> /* This needs to be before termchar.h */
210 #include "character.h"
212 #include "keyboard.h"
214 #include "termhooks.h"
216 #ifdef HAVE_X_WINDOWS
220 #include <Xm/XmStrDefs.h>
221 #endif /* USE_MOTIF */
222 #endif /* HAVE_X_WINDOWS */
231 /* Redefine X specifics to W32 equivalents to avoid cluttering the
232 code with #ifdef blocks. */
233 #undef FRAME_X_DISPLAY_INFO
234 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
235 #define x_display_info w32_display_info
236 #define check_x check_w32
237 #define GCGraphicsExposures 0
238 #endif /* WINDOWSNT */
242 #undef FRAME_X_DISPLAY_INFO
243 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
244 #define x_display_info ns_display_info
245 #define check_x check_ns
246 #define GCGraphicsExposures 0
250 #include "dispextern.h"
251 #include "blockinput.h"
253 #include "intervals.h"
254 #include "termchar.h"
257 #ifdef HAVE_WINDOW_SYSTEM
259 #endif /* HAVE_WINDOW_SYSTEM */
261 #ifdef HAVE_X_WINDOWS
263 /* Compensate for a bug in Xos.h on some systems, on which it requires
264 time.h. On some such systems, Xos.h tries to redefine struct
265 timeval and struct timezone if USG is #defined while it is
268 #ifdef XOS_NEEDS_TIME_H
274 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
276 #else /* not XOS_NEEDS_TIME_H */
278 #endif /* not XOS_NEEDS_TIME_H */
280 #endif /* HAVE_X_WINDOWS */
284 /* Number of pt per inch (from the TeXbook). */
286 #define PT_PER_INCH 72.27
288 /* Non-zero if face attribute ATTR is unspecified. */
290 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
292 /* Non-zero if face attribute ATTR is `ignore-defface'. */
294 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
296 /* Value is the number of elements of VECTOR. */
298 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
300 /* Size of hash table of realized faces in face caches (should be a
303 #define FACE_CACHE_BUCKETS_SIZE 1001
305 /* Keyword symbols used for face attribute names. */
307 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
308 static Lisp_Object QCunderline
;
309 static Lisp_Object QCinverse_video
, QCstipple
;
310 Lisp_Object QCforeground
, QCbackground
;
312 static Lisp_Object QCfont
, QCbold
, QCitalic
;
313 static Lisp_Object QCreverse_video
;
314 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
315 static Lisp_Object QCfontset
;
317 /* Symbols used for attribute values. */
321 static Lisp_Object Qline
, Qwave
;
322 static Lisp_Object Qultra_light
, Qextra_light
, Qlight
;
323 static Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
324 static Lisp_Object Qoblique
, Qreverse_oblique
, Qreverse_italic
;
326 static Lisp_Object Qultra_condensed
, Qextra_condensed
;
327 Lisp_Object Qcondensed
;
328 static Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qextra_expanded
;
329 Lisp_Object Qexpanded
;
330 static Lisp_Object Qultra_expanded
;
331 static Lisp_Object Qreleased_button
, Qpressed_button
;
332 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
333 Lisp_Object Qunspecified
; /* used in dosfns.c */
334 static Lisp_Object QCignore_defface
;
336 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
338 /* The name of the function to call when the background of the frame
339 has changed, frame_set_background_mode. */
341 static Lisp_Object Qframe_set_background_mode
;
343 /* Names of basic faces. */
345 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
346 static Lisp_Object Qregion
;
347 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
348 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
349 Lisp_Object Qmode_line_inactive
;
350 static Lisp_Object Qvertical_border
;
352 /* The symbol `face-alias'. A symbols having that property is an
353 alias for another face. Value of the property is the name of
356 static Lisp_Object Qface_alias
;
358 /* Alist of alternative font families. Each element is of the form
359 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
360 try FAMILY1, then FAMILY2, ... */
362 Lisp_Object Vface_alternative_font_family_alist
;
364 /* Alist of alternative font registries. Each element is of the form
365 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
366 loaded, try REGISTRY1, then REGISTRY2, ... */
368 Lisp_Object Vface_alternative_font_registry_alist
;
370 /* Allowed scalable fonts. A value of nil means don't allow any
371 scalable fonts. A value of t means allow the use of any scalable
372 font. Otherwise, value must be a list of regular expressions. A
373 font may be scaled if its name matches a regular expression in the
376 static Lisp_Object Qscalable_fonts_allowed
;
378 #define DEFAULT_FONT_LIST_LIMIT 100
380 /* The symbols `foreground-color' and `background-color' which can be
381 used as part of a `face' property. This is for compatibility with
384 Lisp_Object Qforeground_color
, Qbackground_color
;
386 /* The symbols `face' and `mouse-face' used as text properties. */
390 /* Property for basic faces which other faces cannot inherit. */
392 static Lisp_Object Qface_no_inherit
;
394 /* Error symbol for wrong_type_argument in load_pixmap. */
396 static Lisp_Object Qbitmap_spec_p
;
398 /* The next ID to assign to Lisp faces. */
400 static int next_lface_id
;
402 /* A vector mapping Lisp face Id's to face names. */
404 static Lisp_Object
*lface_id_to_name
;
405 static ptrdiff_t lface_id_to_name_size
;
407 /* TTY color-related functions (defined in tty-colors.el). */
409 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
411 /* The name of the function used to compute colors on TTYs. */
413 static Lisp_Object Qtty_color_alist
;
415 /* Counter for calls to clear_face_cache. If this counter reaches
416 CLEAR_FONT_TABLE_COUNT, and a frame has more than
417 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
419 static int clear_font_table_count
;
420 #define CLEAR_FONT_TABLE_COUNT 100
421 #define CLEAR_FONT_TABLE_NFONTS 10
423 /* Non-zero means face attributes have been changed since the last
424 redisplay. Used in redisplay_internal. */
426 int face_change_count
;
428 /* Non-zero means don't display bold text if a face's foreground
429 and background colors are the inverse of the default colors of the
430 display. This is a kluge to suppress `bold black' foreground text
431 which is hard to read on an LCD monitor. */
433 static int tty_suppress_bold_inverse_default_colors_p
;
435 /* A list of the form `((x . y))' used to avoid consing in
436 Finternal_set_lisp_face_attribute. */
438 static Lisp_Object Vparam_value_alist
;
440 /* The total number of colors currently allocated. */
443 static int ncolors_allocated
;
444 static int npixmaps_allocated
;
448 /* Non-zero means the definition of the `menu' face for new frames has
451 static int menu_face_changed_default
;
454 /* Function prototypes. */
457 struct named_merge_point
;
459 static void map_tty_color (struct frame
*, struct face
*,
460 enum lface_attribute_index
, int *);
461 static Lisp_Object
resolve_face_name (Lisp_Object
, int);
462 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
463 static int get_lface_attributes (struct frame
*, Lisp_Object
, Lisp_Object
*,
464 int, struct named_merge_point
*);
465 static ptrdiff_t load_pixmap (struct frame
*, Lisp_Object
,
466 unsigned *, unsigned *);
467 static struct frame
*frame_or_selected_frame (Lisp_Object
, int);
468 static void load_face_colors (struct frame
*, struct face
*, Lisp_Object
*);
469 static void free_face_colors (struct frame
*, struct face
*);
470 static int face_color_gray_p (struct frame
*, const char *);
471 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
473 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
475 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
476 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
477 static int realize_basic_faces (struct frame
*);
478 static int realize_default_face (struct frame
*);
479 static void realize_named_face (struct frame
*, Lisp_Object
, int);
480 static int lface_fully_specified_p (Lisp_Object
*);
481 static int lface_equal_p (Lisp_Object
*, Lisp_Object
*);
482 static unsigned hash_string_case_insensitive (Lisp_Object
);
483 static unsigned lface_hash (Lisp_Object
*);
484 static int lface_same_font_attributes_p (Lisp_Object
*, Lisp_Object
*);
485 static struct face_cache
*make_face_cache (struct frame
*);
486 static void clear_face_gcs (struct face_cache
*);
487 static void free_face_cache (struct face_cache
*);
488 static int face_fontset (Lisp_Object
*);
489 static void merge_face_vectors (struct frame
*, Lisp_Object
*, Lisp_Object
*,
490 struct named_merge_point
*);
491 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
492 int, struct named_merge_point
*);
493 static int set_lface_from_font (struct frame
*, Lisp_Object
, Lisp_Object
,
495 static Lisp_Object
lface_from_face_name (struct frame
*, Lisp_Object
, int);
496 static struct face
*make_realized_face (Lisp_Object
*);
497 static void cache_face (struct face_cache
*, struct face
*, unsigned);
498 static void uncache_face (struct face_cache
*, struct face
*);
500 #ifdef HAVE_WINDOW_SYSTEM
502 static GC
x_create_gc (struct frame
*, unsigned long, XGCValues
*);
503 static void x_free_gc (struct frame
*, GC
);
506 static void x_update_menu_appearance (struct frame
*);
508 extern void free_frame_menubar (struct frame
*);
509 #endif /* USE_X_TOOLKIT */
511 #endif /* HAVE_WINDOW_SYSTEM */
514 /***********************************************************************
516 ***********************************************************************/
518 #ifdef HAVE_X_WINDOWS
520 #ifdef DEBUG_X_COLORS
522 /* The following is a poor mans infrastructure for debugging X color
523 allocation problems on displays with PseudoColor-8. Some X servers
524 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
525 color reference counts completely so that they don't signal an
526 error when a color is freed whose reference count is already 0.
527 Other X servers do. To help me debug this, the following code
528 implements a simple reference counting schema of its own, for a
529 single display/screen. --gerd. */
531 /* Reference counts for pixel colors. */
533 int color_count
[256];
535 /* Register color PIXEL as allocated. */
538 register_color (unsigned long pixel
)
540 eassert (pixel
< 256);
541 ++color_count
[pixel
];
545 /* Register color PIXEL as deallocated. */
548 unregister_color (unsigned long pixel
)
550 eassert (pixel
< 256);
551 if (color_count
[pixel
] > 0)
552 --color_count
[pixel
];
558 /* Register N colors from PIXELS as deallocated. */
561 unregister_colors (unsigned long *pixels
, int n
)
564 for (i
= 0; i
< n
; ++i
)
565 unregister_color (pixels
[i
]);
569 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
570 doc
: /* Dump currently allocated colors to stderr. */)
575 fputc ('\n', stderr
);
577 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
580 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
583 fputc ('\n', stderr
);
585 fputc ('\t', stderr
);
589 fputc ('\n', stderr
);
593 #endif /* DEBUG_X_COLORS */
596 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
597 color values. Interrupt input must be blocked when this function
601 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
603 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
605 /* If display has an immutable color map, freeing colors is not
606 necessary and some servers don't allow it. So don't do it. */
607 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
609 #ifdef DEBUG_X_COLORS
610 unregister_colors (pixels
, npixels
);
612 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
620 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
621 color values. Interrupt input must be blocked when this function
625 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
626 long unsigned int *pixels
, int npixels
)
628 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
629 int class = dpyinfo
->visual
->class;
631 /* If display has an immutable color map, freeing colors is not
632 necessary and some servers don't allow it. So don't do it. */
633 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
635 #ifdef DEBUG_X_COLORS
636 unregister_colors (pixels
, npixels
);
638 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
641 #endif /* USE_X_TOOLKIT */
643 /* Create and return a GC for use on frame F. GC values and mask
644 are given by XGCV and MASK. */
647 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
651 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
658 /* Free GC which was used on frame F. */
661 x_free_gc (struct frame
*f
, GC gc
)
663 eassert (interrupt_input_blocked
);
664 IF_DEBUG (eassert (--ngcs
>= 0));
665 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
668 #endif /* HAVE_X_WINDOWS */
671 /* W32 emulation of GCs */
674 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
678 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
685 /* Free GC which was used on frame F. */
688 x_free_gc (struct frame
*f
, GC gc
)
690 IF_DEBUG (eassert (--ngcs
>= 0));
694 #endif /* WINDOWSNT */
697 /* NS emulation of GCs */
700 x_create_gc (struct frame
*f
,
704 GC gc
= xmalloc (sizeof *gc
);
705 memcpy (gc
, xgcv
, sizeof (XGCValues
));
710 x_free_gc (struct frame
*f
, GC gc
)
716 /* If FRAME is nil, return a pointer to the selected frame.
717 Otherwise, check that FRAME is a live frame, and return a pointer
718 to it. NPARAM is the parameter number of FRAME, for
719 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
720 Lisp function definitions. */
722 static inline struct frame
*
723 frame_or_selected_frame (Lisp_Object frame
, int nparam
)
726 frame
= selected_frame
;
728 CHECK_LIVE_FRAME (frame
);
729 return XFRAME (frame
);
733 /***********************************************************************
735 ***********************************************************************/
737 /* Initialize face cache and basic faces for frame F. */
740 init_frame_faces (struct frame
*f
)
742 /* Make a face cache, if F doesn't have one. */
743 if (FRAME_FACE_CACHE (f
) == NULL
)
744 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
746 #ifdef HAVE_WINDOW_SYSTEM
747 /* Make the image cache. */
748 if (FRAME_WINDOW_P (f
))
750 /* We initialize the image cache when creating the first frame
751 on a terminal, and not during terminal creation. This way,
752 `x-open-connection' on a tty won't create an image cache. */
753 if (FRAME_IMAGE_CACHE (f
) == NULL
)
754 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
755 ++FRAME_IMAGE_CACHE (f
)->refcount
;
757 #endif /* HAVE_WINDOW_SYSTEM */
759 /* Realize basic faces. Must have enough information in frame
760 parameters to realize basic faces at this point. */
761 #ifdef HAVE_X_WINDOWS
762 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
765 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
768 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
770 if (!realize_basic_faces (f
))
775 /* Free face cache of frame F. Called from delete_frame. */
778 free_frame_faces (struct frame
*f
)
780 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
784 free_face_cache (face_cache
);
785 FRAME_FACE_CACHE (f
) = NULL
;
788 #ifdef HAVE_WINDOW_SYSTEM
789 if (FRAME_WINDOW_P (f
))
791 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
794 --image_cache
->refcount
;
795 if (image_cache
->refcount
== 0)
796 free_image_cache (f
);
799 #endif /* HAVE_WINDOW_SYSTEM */
803 /* Clear face caches, and recompute basic faces for frame F. Call
804 this after changing frame parameters on which those faces depend,
805 or when realized faces have been freed due to changing attributes
809 recompute_basic_faces (struct frame
*f
)
811 if (FRAME_FACE_CACHE (f
))
813 clear_face_cache (0);
814 if (!realize_basic_faces (f
))
820 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
821 try to free unused fonts, too. */
824 clear_face_cache (int clear_fonts_p
)
826 #ifdef HAVE_WINDOW_SYSTEM
827 Lisp_Object tail
, frame
;
830 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
833 /* Not yet implemented. */
834 clear_font_cache (frame
);
837 /* From time to time see if we can unload some fonts. This also
838 frees all realized faces on all frames. Fonts needed by
839 faces will be loaded again when faces are realized again. */
840 clear_font_table_count
= 0;
842 FOR_EACH_FRAME (tail
, frame
)
844 struct frame
*f
= XFRAME (frame
);
845 if (FRAME_WINDOW_P (f
)
846 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
847 free_all_realized_faces (frame
);
852 /* Clear GCs of realized faces. */
853 FOR_EACH_FRAME (tail
, frame
)
855 struct frame
*f
= XFRAME (frame
);
856 if (FRAME_WINDOW_P (f
))
857 clear_face_gcs (FRAME_FACE_CACHE (f
));
859 clear_image_caches (Qnil
);
861 #endif /* HAVE_WINDOW_SYSTEM */
865 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
866 doc
: /* Clear face caches on all frames.
867 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
868 (Lisp_Object thoroughly
)
870 clear_face_cache (!NILP (thoroughly
));
872 ++windows_or_buffers_changed
;
877 /***********************************************************************
879 ***********************************************************************/
881 #ifdef HAVE_WINDOW_SYSTEM
883 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
884 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
885 A bitmap specification is either a string, a file name, or a list
886 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
887 HEIGHT is its height, and DATA is a string containing the bits of
888 the pixmap. Bits are stored row by row, each row occupies
889 \(WIDTH + 7)/8 bytes. */)
894 if (STRINGP (object
))
895 /* If OBJECT is a string, it's a file name. */
897 else if (CONSP (object
))
899 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
900 HEIGHT must be ints > 0, and DATA must be string large
901 enough to hold a bitmap of the specified size. */
902 Lisp_Object width
, height
, data
;
904 height
= width
= data
= Qnil
;
908 width
= XCAR (object
);
909 object
= XCDR (object
);
912 height
= XCAR (object
);
913 object
= XCDR (object
);
915 data
= XCAR (object
);
920 && RANGED_INTEGERP (1, width
, INT_MAX
)
921 && RANGED_INTEGERP (1, height
, INT_MAX
))
923 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
925 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
930 return pixmap_p
? Qt
: Qnil
;
934 /* Load a bitmap according to NAME (which is either a file name or a
935 pixmap spec) for use on frame F. Value is the bitmap_id (see
936 xfns.c). If NAME is nil, return with a bitmap id of zero. If
937 bitmap cannot be loaded, display a message saying so, and return
938 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
939 if these pointers are not null. */
942 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
,
950 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
955 /* Decode a bitmap spec into a bitmap. */
960 w
= XINT (Fcar (name
));
961 h
= XINT (Fcar (Fcdr (name
)));
962 bits
= Fcar (Fcdr (Fcdr (name
)));
964 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
969 /* It must be a string -- a file name. */
970 bitmap_id
= x_create_bitmap_from_file (f
, name
);
976 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
987 ++npixmaps_allocated
;
990 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
993 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
999 #endif /* HAVE_WINDOW_SYSTEM */
1003 /***********************************************************************
1005 ***********************************************************************/
1007 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1008 RGB_LIST should contain (at least) 3 lisp integers.
1009 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1012 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
1014 #define PARSE_RGB_LIST_FIELD(field) \
1015 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1017 color->field = XINT (XCAR (rgb_list)); \
1018 rgb_list = XCDR (rgb_list); \
1023 PARSE_RGB_LIST_FIELD (red
);
1024 PARSE_RGB_LIST_FIELD (green
);
1025 PARSE_RGB_LIST_FIELD (blue
);
1031 /* Lookup on frame F the color described by the lisp string COLOR.
1032 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1033 non-zero, then the `standard' definition of the same color is
1037 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
1040 Lisp_Object frame
, color_desc
;
1042 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1045 XSETFRAME (frame
, f
);
1047 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1048 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1052 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1055 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1057 rgb
= XCDR (XCDR (color_desc
));
1058 if (! parse_rgb_list (rgb
, tty_color
))
1061 /* Should we fill in STD_COLOR too? */
1064 /* Default STD_COLOR to the same as TTY_COLOR. */
1065 *std_color
= *tty_color
;
1067 /* Do a quick check to see if the returned descriptor is
1068 actually _exactly_ equal to COLOR, otherwise we have to
1069 lookup STD_COLOR separately. If it's impossible to lookup
1070 a standard color, we just give up and use TTY_COLOR. */
1071 if ((!STRINGP (XCAR (color_desc
))
1072 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1073 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1075 /* Look up STD_COLOR separately. */
1076 rgb
= call1 (Qtty_color_standard_values
, color
);
1077 if (! parse_rgb_list (rgb
, std_color
))
1084 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1085 /* We were called early during startup, and the colors are not
1086 yet set up in tty-defined-color-alist. Don't return a failure
1087 indication, since this produces the annoying "Unable to
1088 load color" messages in the *Messages* buffer. */
1091 /* tty-color-desc seems to have returned a bad value. */
1095 /* A version of defined_color for non-X frames. */
1098 tty_defined_color (struct frame
*f
, const char *color_name
,
1099 XColor
*color_def
, int alloc
)
1104 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1106 color_def
->blue
= 0;
1107 color_def
->green
= 0;
1110 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1112 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1114 if (strcmp (color_name
, "unspecified-fg") == 0)
1115 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1116 else if (strcmp (color_name
, "unspecified-bg") == 0)
1117 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1120 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1127 /* Decide if color named COLOR_NAME is valid for the display
1128 associated with the frame F; if so, return the rgb values in
1129 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1131 This does the right thing for any type of frame. */
1134 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
1137 if (!FRAME_WINDOW_P (f
))
1138 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1139 #ifdef HAVE_X_WINDOWS
1140 else if (FRAME_X_P (f
))
1141 return x_defined_color (f
, color_name
, color_def
, alloc
);
1144 else if (FRAME_W32_P (f
))
1145 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1148 else if (FRAME_NS_P (f
))
1149 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1156 /* Given the index IDX of a tty color on frame F, return its name, a
1160 tty_color_name (struct frame
*f
, int idx
)
1162 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1165 Lisp_Object coldesc
;
1167 XSETFRAME (frame
, f
);
1168 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1170 if (!NILP (coldesc
))
1171 return XCAR (coldesc
);
1174 /* We can have an MSDOG frame under -nw for a short window of
1175 opportunity before internal_terminal_init is called. DTRT. */
1176 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1177 return msdos_stdcolor_name (idx
);
1180 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1181 return build_string (unspecified_fg
);
1182 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1183 return build_string (unspecified_bg
);
1185 return Qunspecified
;
1189 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1192 The criterion implemented here is not a terribly sophisticated one. */
1195 face_color_gray_p (struct frame
*f
, const char *color_name
)
1200 if (defined_color (f
, color_name
, &color
, 0))
1201 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1202 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1204 ((eabs (color
.red
- color
.green
)
1205 < max (color
.red
, color
.green
) / 20)
1206 && (eabs (color
.green
- color
.blue
)
1207 < max (color
.green
, color
.blue
) / 20)
1208 && (eabs (color
.blue
- color
.red
)
1209 < max (color
.blue
, color
.red
) / 20)));
1217 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1218 BACKGROUND_P non-zero means the color will be used as background
1222 face_color_supported_p (struct frame
*f
, const char *color_name
,
1228 XSETFRAME (frame
, f
);
1230 #ifdef HAVE_WINDOW_SYSTEM
1232 ? (!NILP (Fxw_display_color_p (frame
))
1233 || xstrcasecmp (color_name
, "black") == 0
1234 || xstrcasecmp (color_name
, "white") == 0
1236 && face_color_gray_p (f
, color_name
))
1237 || (!NILP (Fx_display_grayscale_p (frame
))
1238 && face_color_gray_p (f
, color_name
)))
1241 tty_defined_color (f
, color_name
, ¬_used
, 0);
1245 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1246 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1247 FRAME specifies the frame and thus the display for interpreting COLOR.
1248 If FRAME is nil or omitted, use the selected frame. */)
1249 (Lisp_Object color
, Lisp_Object frame
)
1253 CHECK_STRING (color
);
1255 frame
= selected_frame
;
1257 CHECK_FRAME (frame
);
1259 return face_color_gray_p (f
, SSDATA (color
)) ? Qt
: Qnil
;
1263 DEFUN ("color-supported-p", Fcolor_supported_p
,
1264 Scolor_supported_p
, 1, 3, 0,
1265 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1266 BACKGROUND-P non-nil means COLOR is used as a background.
1267 Otherwise, this function tells whether it can be used as a foreground.
1268 If FRAME is nil or omitted, use the selected frame.
1269 COLOR must be a valid color name. */)
1270 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1274 CHECK_STRING (color
);
1276 frame
= selected_frame
;
1278 CHECK_FRAME (frame
);
1280 if (face_color_supported_p (f
, SSDATA (color
), !NILP (background_p
)))
1286 /* Load color with name NAME for use by face FACE on frame F.
1287 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1288 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1289 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1290 pixel color. If color cannot be loaded, display a message, and
1291 return the foreground, background or underline color of F, but
1292 record that fact in flags of the face so that we don't try to free
1296 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1297 enum lface_attribute_index target_index
)
1301 eassert (STRINGP (name
));
1302 eassert (target_index
== LFACE_FOREGROUND_INDEX
1303 || target_index
== LFACE_BACKGROUND_INDEX
1304 || target_index
== LFACE_UNDERLINE_INDEX
1305 || target_index
== LFACE_OVERLINE_INDEX
1306 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1307 || target_index
== LFACE_BOX_INDEX
);
1309 /* if the color map is full, defined_color will return a best match
1310 to the values in an existing cell. */
1311 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1313 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1315 switch (target_index
)
1317 case LFACE_FOREGROUND_INDEX
:
1318 face
->foreground_defaulted_p
= 1;
1319 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1322 case LFACE_BACKGROUND_INDEX
:
1323 face
->background_defaulted_p
= 1;
1324 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1327 case LFACE_UNDERLINE_INDEX
:
1328 face
->underline_defaulted_p
= 1;
1329 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1332 case LFACE_OVERLINE_INDEX
:
1333 face
->overline_color_defaulted_p
= 1;
1334 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1337 case LFACE_STRIKE_THROUGH_INDEX
:
1338 face
->strike_through_color_defaulted_p
= 1;
1339 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1342 case LFACE_BOX_INDEX
:
1343 face
->box_color_defaulted_p
= 1;
1344 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1353 ++ncolors_allocated
;
1360 #ifdef HAVE_WINDOW_SYSTEM
1362 /* Load colors for face FACE which is used on frame F. Colors are
1363 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1364 of ATTRS. If the background color specified is not supported on F,
1365 try to emulate gray colors with a stipple from Vface_default_stipple. */
1368 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1372 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1373 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1375 /* Swap colors if face is inverse-video. */
1376 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1384 /* Check for support for foreground, not for background because
1385 face_color_supported_p is smart enough to know that grays are
1386 "supported" as background because we are supposed to use stipple
1388 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1389 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1391 x_destroy_bitmap (f
, face
->stipple
);
1392 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1393 &face
->pixmap_w
, &face
->pixmap_h
);
1396 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1397 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1401 /* Free color PIXEL on frame F. */
1404 unload_color (struct frame
*f
, long unsigned int pixel
)
1406 #ifdef HAVE_X_WINDOWS
1410 x_free_colors (f
, &pixel
, 1);
1417 /* Free colors allocated for FACE. */
1420 free_face_colors (struct frame
*f
, struct face
*face
)
1422 /* PENDING(NS): need to do something here? */
1423 #ifdef HAVE_X_WINDOWS
1424 if (face
->colors_copied_bitwise_p
)
1429 if (!face
->foreground_defaulted_p
)
1431 x_free_colors (f
, &face
->foreground
, 1);
1432 IF_DEBUG (--ncolors_allocated
);
1435 if (!face
->background_defaulted_p
)
1437 x_free_colors (f
, &face
->background
, 1);
1438 IF_DEBUG (--ncolors_allocated
);
1441 if (face
->underline_p
1442 && !face
->underline_defaulted_p
)
1444 x_free_colors (f
, &face
->underline_color
, 1);
1445 IF_DEBUG (--ncolors_allocated
);
1448 if (face
->overline_p
1449 && !face
->overline_color_defaulted_p
)
1451 x_free_colors (f
, &face
->overline_color
, 1);
1452 IF_DEBUG (--ncolors_allocated
);
1455 if (face
->strike_through_p
1456 && !face
->strike_through_color_defaulted_p
)
1458 x_free_colors (f
, &face
->strike_through_color
, 1);
1459 IF_DEBUG (--ncolors_allocated
);
1462 if (face
->box
!= FACE_NO_BOX
1463 && !face
->box_color_defaulted_p
)
1465 x_free_colors (f
, &face
->box_color
, 1);
1466 IF_DEBUG (--ncolors_allocated
);
1470 #endif /* HAVE_X_WINDOWS */
1473 #endif /* HAVE_WINDOW_SYSTEM */
1477 /***********************************************************************
1479 ***********************************************************************/
1481 /* An enumerator for each field of an XLFD font name. */
1502 /* An enumerator for each possible slant value of a font. Taken from
1503 the XLFD specification. */
1511 XLFD_SLANT_REVERSE_ITALIC
,
1512 XLFD_SLANT_REVERSE_OBLIQUE
,
1516 /* Relative font weight according to XLFD documentation. */
1520 XLFD_WEIGHT_UNKNOWN
,
1521 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1522 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1523 XLFD_WEIGHT_LIGHT
, /* 30 */
1524 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1525 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1526 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1527 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1528 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1529 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1532 /* Relative proportionate width. */
1536 XLFD_SWIDTH_UNKNOWN
,
1537 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1538 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1539 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1540 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1541 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1542 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1543 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1544 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1545 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1548 /* Order by which font selection chooses fonts. The default values
1549 mean `first, find a best match for the font width, then for the
1550 font height, then for weight, then for slant.' This variable can be
1551 set via set-face-font-sort-order. */
1553 static int font_sort_order
[4];
1555 #ifdef HAVE_WINDOW_SYSTEM
1557 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1560 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1562 Lisp_Object
const *p1
= v1
;
1563 Lisp_Object
const *p2
= v2
;
1564 Lisp_Object font1
= *p1
;
1565 Lisp_Object font2
= *p2
;
1568 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1570 enum font_property_index idx
= font_props_for_sorting
[i
];
1571 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1574 if (idx
<= FONT_REGISTRY_INDEX
)
1577 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1579 result
= STRINGP (val2
) ? 1 : 0;
1583 if (INTEGERP (val1
))
1584 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1585 ? XINT (val1
) > XINT (val2
)
1588 result
= INTEGERP (val2
) ? 1 : 0;
1596 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1597 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1598 If FAMILY is omitted or nil, list all families.
1599 Otherwise, FAMILY must be a string, possibly containing wildcards
1601 If FRAME is omitted or nil, use the selected frame.
1602 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1603 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1604 FAMILY is the font family name. POINT-SIZE is the size of the
1605 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1606 width, weight and slant of the font. These symbols are the same as for
1607 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1608 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1609 giving the registry and encoding of the font.
1610 The result list is sorted according to the current setting of
1611 the face font sort order. */)
1612 (Lisp_Object family
, Lisp_Object frame
)
1614 Lisp_Object font_spec
, list
, *drivers
, vec
;
1615 ptrdiff_t i
, nfonts
;
1621 frame
= selected_frame
;
1622 CHECK_LIVE_FRAME (frame
);
1624 font_spec
= Ffont_spec (0, NULL
);
1627 CHECK_STRING (family
);
1628 font_parse_family_registry (family
, Qnil
, font_spec
);
1631 list
= font_list_entities (frame
, font_spec
);
1635 /* Sort the font entities. */
1636 for (i
= 0; i
< 4; i
++)
1637 switch (font_sort_order
[i
])
1640 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1641 case XLFD_POINT_SIZE
:
1642 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1644 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1646 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1648 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1649 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1650 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1651 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1653 ndrivers
= XINT (Flength (list
));
1654 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1655 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1656 drivers
[i
] = XCAR (list
);
1657 vec
= Fvconcat (ndrivers
, drivers
);
1658 nfonts
= ASIZE (vec
);
1660 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1661 compare_fonts_by_sort_order
);
1664 for (i
= nfonts
- 1; i
>= 0; --i
)
1666 Lisp_Object font
= AREF (vec
, i
);
1667 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1669 Lisp_Object spacing
;
1671 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1672 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1673 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1674 XFRAME (frame
)->resy
);
1675 ASET (v
, 2, make_number (point
));
1676 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1677 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1678 spacing
= Ffont_get (font
, QCspacing
);
1679 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1680 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1681 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1683 result
= Fcons (v
, result
);
1690 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1691 doc
: /* Return a list of the names of available fonts matching PATTERN.
1692 If optional arguments FACE and FRAME are specified, return only fonts
1693 the same size as FACE on FRAME.
1695 PATTERN should be a string containing a font name in the XLFD,
1696 Fontconfig, or GTK format. A font name given in the XLFD format may
1697 contain wildcard characters:
1698 the * character matches any substring, and
1699 the ? character matches any single character.
1700 PATTERN is case-insensitive.
1702 The return value is a list of strings, suitable as arguments to
1705 Fonts Emacs can't use may or may not be excluded
1706 even if they match PATTERN and FACE.
1707 The optional fourth argument MAXIMUM sets a limit on how many
1708 fonts to match. The first MAXIMUM fonts are reported.
1709 The optional fifth argument WIDTH, if specified, is a number of columns
1710 occupied by a character of a font. In that case, return only fonts
1711 the WIDTH times as wide as FACE on FRAME. */)
1712 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1713 Lisp_Object maximum
, Lisp_Object width
)
1716 int size
, avgwidth
IF_LINT (= 0);
1719 CHECK_STRING (pattern
);
1721 if (! NILP (maximum
))
1722 CHECK_NATNUM (maximum
);
1725 CHECK_NUMBER (width
);
1727 /* We can't simply call check_x_frame because this function may be
1728 called before any frame is created. */
1730 frame
= selected_frame
;
1731 f
= frame_or_selected_frame (frame
, 2);
1732 if (! FRAME_WINDOW_P (f
))
1734 /* Perhaps we have not yet created any frame. */
1740 /* Determine the width standard for comparison with the fonts we find. */
1746 /* This is of limited utility since it works with character
1747 widths. Keep it for compatibility. --gerd. */
1748 int face_id
= lookup_named_face (f
, face
, 0);
1749 struct face
*width_face
= (face_id
< 0
1751 : FACE_FROM_ID (f
, face_id
));
1753 if (width_face
&& width_face
->font
)
1755 size
= width_face
->font
->pixel_size
;
1756 avgwidth
= width_face
->font
->average_width
;
1760 size
= FRAME_FONT (f
)->pixel_size
;
1761 avgwidth
= FRAME_FONT (f
)->average_width
;
1764 avgwidth
*= XINT (width
);
1768 Lisp_Object font_spec
;
1769 Lisp_Object args
[2], tail
;
1771 font_spec
= font_spec_from_name (pattern
);
1772 if (!FONTP (font_spec
))
1773 signal_error ("Invalid font name", pattern
);
1777 Ffont_put (font_spec
, QCsize
, make_number (size
));
1778 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1780 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1781 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1783 Lisp_Object font_entity
;
1785 font_entity
= XCAR (tail
);
1786 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1787 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1788 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1790 /* This is a scalable font. For backward compatibility,
1791 we set the specified size. */
1792 font_entity
= copy_font_spec (font_entity
);
1793 ASET (font_entity
, FONT_SIZE_INDEX
,
1794 AREF (font_spec
, FONT_SIZE_INDEX
));
1796 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1799 /* We don't have to check fontsets. */
1801 args
[1] = list_fontsets (f
, pattern
, size
);
1802 return Fnconc (2, args
);
1806 #endif /* HAVE_WINDOW_SYSTEM */
1809 /***********************************************************************
1811 ***********************************************************************/
1813 /* Access face attributes of face LFACE, a Lisp vector. */
1815 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1816 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1817 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1818 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1819 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1820 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1821 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1822 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1823 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1824 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1825 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1826 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1827 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1828 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1829 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1830 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1831 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1833 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1834 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1836 #define LFACEP(LFACE) \
1838 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1839 && EQ (AREF (LFACE, 0), Qface))
1844 /* Check consistency of Lisp face attribute vector ATTRS. */
1847 check_lface_attrs (Lisp_Object
*attrs
)
1849 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1850 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1851 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1852 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1853 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1854 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1855 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1856 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1857 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1858 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1859 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1860 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1861 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1862 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1863 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1864 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1865 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1866 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1867 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1868 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1869 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1870 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1871 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1872 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1873 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1874 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1875 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1876 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1877 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1878 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1879 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1880 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1881 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1882 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1883 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1884 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1885 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1886 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1887 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1888 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1889 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1890 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1891 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1892 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1893 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1894 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1895 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1896 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1897 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1898 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1899 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1900 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1901 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1902 #ifdef HAVE_WINDOW_SYSTEM
1903 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1904 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1905 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1906 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1907 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1908 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1909 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1910 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1911 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1912 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1917 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1920 check_lface (Lisp_Object lface
)
1924 eassert (LFACEP (lface
));
1925 check_lface_attrs (XVECTOR (lface
)->contents
);
1929 #else /* not GLYPH_DEBUG */
1931 #define check_lface_attrs(attrs) (void) 0
1932 #define check_lface(lface) (void) 0
1934 #endif /* GLYPH_DEBUG */
1938 /* Face-merge cycle checking. */
1940 enum named_merge_point_kind
1942 NAMED_MERGE_POINT_NORMAL
,
1943 NAMED_MERGE_POINT_REMAP
1946 /* A `named merge point' is simply a point during face-merging where we
1947 look up a face by name. We keep a stack of which named lookups we're
1948 currently processing so that we can easily detect cycles, using a
1949 linked- list of struct named_merge_point structures, typically
1950 allocated on the stack frame of the named lookup functions which are
1951 active (so no consing is required). */
1952 struct named_merge_point
1954 Lisp_Object face_name
;
1955 enum named_merge_point_kind named_merge_point_kind
;
1956 struct named_merge_point
*prev
;
1960 /* If a face merging cycle is detected for FACE_NAME, return 0,
1961 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1962 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1963 pointed to by NAMED_MERGE_POINTS, and return 1. */
1966 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1967 Lisp_Object face_name
,
1968 enum named_merge_point_kind named_merge_point_kind
,
1969 struct named_merge_point
**named_merge_points
)
1971 struct named_merge_point
*prev
;
1973 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1974 if (EQ (face_name
, prev
->face_name
))
1976 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1977 /* A cycle, so fail. */
1979 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1980 /* A remap `hides ' any previous normal merge points
1981 (because the remap means that it's actually different face),
1982 so as we know the current merge point must be normal, we
1983 can just assume it's OK. */
1987 new_named_merge_point
->face_name
= face_name
;
1988 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1989 new_named_merge_point
->prev
= *named_merge_points
;
1991 *named_merge_points
= new_named_merge_point
;
1997 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1998 to make it a symbol. If FACE_NAME is an alias for another face,
1999 return that face's name.
2001 Return default face in case of errors. */
2004 resolve_face_name (Lisp_Object face_name
, int signal_p
)
2006 Lisp_Object orig_face
;
2007 Lisp_Object tortoise
, hare
;
2009 if (STRINGP (face_name
))
2010 face_name
= intern (SSDATA (face_name
));
2012 if (NILP (face_name
) || !SYMBOLP (face_name
))
2015 orig_face
= face_name
;
2016 tortoise
= hare
= face_name
;
2021 hare
= Fget (hare
, Qface_alias
);
2022 if (NILP (hare
) || !SYMBOLP (hare
))
2026 hare
= Fget (hare
, Qface_alias
);
2027 if (NILP (hare
) || !SYMBOLP (hare
))
2030 tortoise
= Fget (tortoise
, Qface_alias
);
2031 if (EQ (hare
, tortoise
))
2034 xsignal1 (Qcircular_list
, orig_face
);
2043 /* Return the face definition of FACE_NAME on frame F. F null means
2044 return the definition for new frames. FACE_NAME may be a string or
2045 a symbol (apparently Emacs 20.2 allowed strings as face names in
2046 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2047 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2048 is zero, value is nil if FACE_NAME is not a valid face name. */
2049 static inline Lisp_Object
2050 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
2056 lface
= assq_no_quit (face_name
, f
->face_alist
);
2058 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2061 lface
= XCDR (lface
);
2063 signal_error ("Invalid face", face_name
);
2065 check_lface (lface
);
2070 /* Return the face definition of FACE_NAME on frame F. F null means
2071 return the definition for new frames. FACE_NAME may be a string or
2072 a symbol (apparently Emacs 20.2 allowed strings as face names in
2073 face text properties; Ediff uses that). If FACE_NAME is an alias
2074 for another face, return that face's definition. If SIGNAL_P is
2075 non-zero, signal an error if FACE_NAME is not a valid face name.
2076 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2078 static inline Lisp_Object
2079 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2081 face_name
= resolve_face_name (face_name
, signal_p
);
2082 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2086 /* Get face attributes of face FACE_NAME from frame-local faces on
2087 frame F. Store the resulting attributes in ATTRS which must point
2088 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2089 is non-zero, signal an error if FACE_NAME does not name a face.
2090 Otherwise, value is zero if FACE_NAME is not a face. */
2093 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
2094 Lisp_Object
*attrs
, int signal_p
)
2098 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2101 memcpy (attrs
, XVECTOR (lface
)->contents
,
2102 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2104 return !NILP (lface
);
2107 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2108 F. Store the resulting attributes in ATTRS which must point to a
2109 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2110 alias for another face, use that face's definition. If SIGNAL_P is
2111 non-zero, signal an error if FACE_NAME does not name a face.
2112 Otherwise, value is zero if FACE_NAME is not a face. */
2115 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
2116 Lisp_Object
*attrs
, int signal_p
,
2117 struct named_merge_point
*named_merge_points
)
2119 Lisp_Object face_remapping
;
2121 face_name
= resolve_face_name (face_name
, signal_p
);
2123 /* See if SYMBOL has been remapped to some other face (usually this
2124 is done buffer-locally). */
2125 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2126 if (CONSP (face_remapping
))
2128 struct named_merge_point named_merge_point
;
2130 if (push_named_merge_point (&named_merge_point
,
2131 face_name
, NAMED_MERGE_POINT_REMAP
,
2132 &named_merge_points
))
2136 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2137 attrs
[i
] = Qunspecified
;
2139 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2140 signal_p
, named_merge_points
);
2144 /* Default case, no remapping. */
2145 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2149 /* Non-zero if all attributes in face attribute vector ATTRS are
2150 specified, i.e. are non-nil. */
2153 lface_fully_specified_p (Lisp_Object
*attrs
)
2157 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2158 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2159 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2162 return i
== LFACE_VECTOR_SIZE
;
2165 #ifdef HAVE_WINDOW_SYSTEM
2167 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2168 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2169 exception is `font' attribute. It is set to FONT_OBJECT regardless
2173 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
2174 Lisp_Object font_object
, int force_p
)
2177 struct font
*font
= XFONT_OBJECT (font_object
);
2179 /* Set attributes only if unspecified, otherwise face defaults for
2180 new frames would never take effect. If the font doesn't have a
2181 specific property, set a normal value for that. */
2183 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2185 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2187 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2190 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2192 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2194 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2197 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2199 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2202 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2205 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2207 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2208 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2210 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2212 val
= FONT_SLANT_FOR_FACE (font_object
);
2213 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2215 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2217 val
= FONT_WIDTH_FOR_FACE (font_object
);
2218 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2221 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2225 #endif /* HAVE_WINDOW_SYSTEM */
2228 /* Merges the face height FROM with the face height TO, and returns the
2229 merged height. If FROM is an invalid height, then INVALID is
2230 returned instead. FROM and TO may be either absolute face heights or
2231 `relative' heights; the returned value is always an absolute height
2232 unless both FROM and TO are relative. */
2235 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2237 Lisp_Object result
= invalid
;
2239 if (INTEGERP (from
))
2240 /* FROM is absolute, just use it as is. */
2242 else if (FLOATP (from
))
2243 /* FROM is a scale, use it to adjust TO. */
2246 /* relative X absolute => absolute */
2247 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2248 else if (FLOATP (to
))
2249 /* relative X relative => relative */
2250 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2251 else if (UNSPECIFIEDP (to
))
2254 else if (FUNCTIONP (from
))
2255 /* FROM is a function, which use to adjust TO. */
2257 /* Call function with current height as argument.
2258 From is the new height. */
2259 result
= safe_call1 (from
, to
);
2261 /* Ensure that if TO was absolute, so is the result. */
2262 if (INTEGERP (to
) && !INTEGERP (result
))
2270 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2271 store the resulting attributes in TO, which must be already be
2272 completely specified and contain only absolute attributes. Every
2273 specified attribute of FROM overrides the corresponding attribute of
2274 TO; relative attributes in FROM are merged with the absolute value in
2275 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2276 loops in face inheritance/remapping; it should be 0 when called from
2280 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2281 struct named_merge_point
*named_merge_points
)
2285 /* If FROM inherits from some other faces, merge their attributes into
2286 TO before merging FROM's direct attributes. Note that an :inherit
2287 attribute of `unspecified' is the same as one of nil; we never
2288 merge :inherit attributes, so nil is more correct, but lots of
2289 other code uses `unspecified' as a generic value for face attributes. */
2290 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2291 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2292 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2294 i
= LFACE_FONT_INDEX
;
2295 if (!UNSPECIFIEDP (from
[i
]))
2297 if (!UNSPECIFIEDP (to
[i
]))
2298 to
[i
] = merge_font_spec (from
[i
], to
[i
]);
2300 to
[i
] = copy_font_spec (from
[i
]);
2301 if (! NILP (AREF (to
[i
], FONT_FOUNDRY_INDEX
)))
2302 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FOUNDRY_INDEX
));
2303 if (! NILP (AREF (to
[i
], FONT_FAMILY_INDEX
)))
2304 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FAMILY_INDEX
));
2305 if (! NILP (AREF (to
[i
], FONT_WEIGHT_INDEX
)))
2306 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (to
[i
]);
2307 if (! NILP (AREF (to
[i
], FONT_SLANT_INDEX
)))
2308 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (to
[i
]);
2309 if (! NILP (AREF (to
[i
], FONT_WIDTH_INDEX
)))
2310 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (to
[i
]);
2311 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2314 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2315 if (!UNSPECIFIEDP (from
[i
]))
2317 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2319 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2320 font_clear_prop (to
, FONT_SIZE_INDEX
);
2322 else if (i
!= LFACE_FONT_INDEX
2323 && ! EQ (to
[i
], from
[i
]))
2326 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2327 font_clear_prop (to
,
2328 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2329 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2330 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2331 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2332 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2333 : FONT_SLANT_INDEX
));
2337 /* TO is always an absolute face, which should inherit from nothing.
2338 We blindly copy the :inherit attribute above and fix it up here. */
2339 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2342 /* Merge the named face FACE_NAME on frame F, into the vector of face
2343 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2344 inheritance. Returns true if FACE_NAME is a valid face name and
2345 merging succeeded. */
2348 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2349 struct named_merge_point
*named_merge_points
)
2351 struct named_merge_point named_merge_point
;
2353 if (push_named_merge_point (&named_merge_point
,
2354 face_name
, NAMED_MERGE_POINT_NORMAL
,
2355 &named_merge_points
))
2357 struct gcpro gcpro1
;
2358 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2359 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2363 GCPRO1 (named_merge_point
.face_name
);
2364 merge_face_vectors (f
, from
, to
, named_merge_points
);
2375 /* Merge face attributes from the lisp `face reference' FACE_REF on
2376 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2377 problems with FACE_REF cause an error message to be shown. Return
2378 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2379 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2380 list structure; it may be 0 for most callers.
2382 FACE_REF may be a single face specification or a list of such
2383 specifications. Each face specification can be:
2385 1. A symbol or string naming a Lisp face.
2387 2. A property list of the form (KEYWORD VALUE ...) where each
2388 KEYWORD is a face attribute name, and value is an appropriate value
2391 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2392 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2393 for compatibility with 20.2.
2395 Face specifications earlier in lists take precedence over later
2399 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2400 int err_msgs
, struct named_merge_point
*named_merge_points
)
2402 int ok
= 1; /* Succeed without an error? */
2404 if (CONSP (face_ref
))
2406 Lisp_Object first
= XCAR (face_ref
);
2408 if (EQ (first
, Qforeground_color
)
2409 || EQ (first
, Qbackground_color
))
2411 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2412 . COLOR). COLOR must be a string. */
2413 Lisp_Object color_name
= XCDR (face_ref
);
2414 Lisp_Object color
= first
;
2416 if (STRINGP (color_name
))
2418 if (EQ (color
, Qforeground_color
))
2419 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2421 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2426 add_to_log ("Invalid face color", color_name
, Qnil
);
2430 else if (SYMBOLP (first
)
2431 && *SDATA (SYMBOL_NAME (first
)) == ':')
2433 /* Assume this is the property list form. */
2434 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2436 Lisp_Object keyword
= XCAR (face_ref
);
2437 Lisp_Object value
= XCAR (XCDR (face_ref
));
2440 /* Specifying `unspecified' is a no-op. */
2441 if (EQ (value
, Qunspecified
))
2443 else if (EQ (keyword
, QCfamily
))
2445 if (STRINGP (value
))
2447 to
[LFACE_FAMILY_INDEX
] = value
;
2448 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2453 else if (EQ (keyword
, QCfoundry
))
2455 if (STRINGP (value
))
2457 to
[LFACE_FOUNDRY_INDEX
] = value
;
2458 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2463 else if (EQ (keyword
, QCheight
))
2465 Lisp_Object new_height
=
2466 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2468 if (! NILP (new_height
))
2470 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2471 font_clear_prop (to
, FONT_SIZE_INDEX
);
2476 else if (EQ (keyword
, QCweight
))
2478 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2480 to
[LFACE_WEIGHT_INDEX
] = value
;
2481 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2486 else if (EQ (keyword
, QCslant
))
2488 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2490 to
[LFACE_SLANT_INDEX
] = value
;
2491 font_clear_prop (to
, FONT_SLANT_INDEX
);
2496 else if (EQ (keyword
, QCunderline
))
2502 to
[LFACE_UNDERLINE_INDEX
] = value
;
2506 else if (EQ (keyword
, QCoverline
))
2511 to
[LFACE_OVERLINE_INDEX
] = value
;
2515 else if (EQ (keyword
, QCstrike_through
))
2520 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2524 else if (EQ (keyword
, QCbox
))
2527 value
= make_number (1);
2528 if (INTEGERP (value
)
2532 to
[LFACE_BOX_INDEX
] = value
;
2536 else if (EQ (keyword
, QCinverse_video
)
2537 || EQ (keyword
, QCreverse_video
))
2539 if (EQ (value
, Qt
) || NILP (value
))
2540 to
[LFACE_INVERSE_INDEX
] = value
;
2544 else if (EQ (keyword
, QCforeground
))
2546 if (STRINGP (value
))
2547 to
[LFACE_FOREGROUND_INDEX
] = value
;
2551 else if (EQ (keyword
, QCbackground
))
2553 if (STRINGP (value
))
2554 to
[LFACE_BACKGROUND_INDEX
] = value
;
2558 else if (EQ (keyword
, QCstipple
))
2560 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
2561 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2562 if (!NILP (pixmap_p
))
2563 to
[LFACE_STIPPLE_INDEX
] = value
;
2568 else if (EQ (keyword
, QCwidth
))
2570 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2572 to
[LFACE_SWIDTH_INDEX
] = value
;
2573 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2578 else if (EQ (keyword
, QCinherit
))
2580 /* This is not really very useful; it's just like a
2581 normal face reference. */
2582 if (! merge_face_ref (f
, value
, to
,
2583 err_msgs
, named_merge_points
))
2591 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2595 face_ref
= XCDR (XCDR (face_ref
));
2600 /* This is a list of face refs. Those at the beginning of the
2601 list take precedence over what follows, so we have to merge
2602 from the end backwards. */
2603 Lisp_Object next
= XCDR (face_ref
);
2606 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2608 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2614 /* FACE_REF ought to be a face name. */
2615 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2616 if (!ok
&& err_msgs
)
2617 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2624 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2625 Sinternal_make_lisp_face
, 1, 2, 0,
2626 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2627 If FACE was not known as a face before, create a new one.
2628 If optional argument FRAME is specified, make a frame-local face
2629 for that frame. Otherwise operate on the global face definition.
2630 Value is a vector of face attributes. */)
2631 (Lisp_Object face
, Lisp_Object frame
)
2633 Lisp_Object global_lface
, lface
;
2637 CHECK_SYMBOL (face
);
2638 global_lface
= lface_from_face_name (NULL
, face
, 0);
2642 CHECK_LIVE_FRAME (frame
);
2644 lface
= lface_from_face_name (f
, face
, 0);
2647 f
= NULL
, lface
= Qnil
;
2649 /* Add a global definition if there is none. */
2650 if (NILP (global_lface
))
2652 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2654 ASET (global_lface
, 0, Qface
);
2655 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2656 Vface_new_frame_defaults
);
2658 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2659 face id to Lisp face is given by the vector lface_id_to_name.
2660 The mapping from Lisp face to Lisp face id is given by the
2661 property `face' of the Lisp face name. */
2662 if (next_lface_id
== lface_id_to_name_size
)
2664 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2665 sizeof *lface_id_to_name
);
2667 lface_id_to_name
[next_lface_id
] = face
;
2668 Fput (face
, Qface
, make_number (next_lface_id
));
2672 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2673 ASET (global_lface
, i
, Qunspecified
);
2675 /* Add a frame-local definition. */
2680 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2682 ASET (lface
, 0, Qface
);
2683 FSET (f
, face_alist
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2686 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2687 ASET (lface
, i
, Qunspecified
);
2690 lface
= global_lface
;
2692 /* Changing a named face means that all realized faces depending on
2693 that face are invalid. Since we cannot tell which realized faces
2694 depend on the face, make sure they are all removed. This is done
2695 by incrementing face_change_count. The next call to
2696 init_iterator will then free realized faces. */
2697 if (NILP (Fget (face
, Qface_no_inherit
)))
2699 ++face_change_count
;
2700 ++windows_or_buffers_changed
;
2703 eassert (LFACEP (lface
));
2704 check_lface (lface
);
2709 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2710 Sinternal_lisp_face_p
, 1, 2, 0,
2711 doc
: /* Return non-nil if FACE names a face.
2712 FACE should be a symbol or string.
2713 If optional second argument FRAME is non-nil, check for the
2714 existence of a frame-local face with name FACE on that frame.
2715 Otherwise check for the existence of a global face. */)
2716 (Lisp_Object face
, Lisp_Object frame
)
2720 face
= resolve_face_name (face
, 1);
2724 CHECK_LIVE_FRAME (frame
);
2725 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2728 lface
= lface_from_face_name (NULL
, face
, 0);
2734 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2735 Sinternal_copy_lisp_face
, 4, 4, 0,
2736 doc
: /* Copy face FROM to TO.
2737 If FRAME is t, copy the global face definition of FROM.
2738 Otherwise, copy the frame-local definition of FROM on FRAME.
2739 If NEW-FRAME is a frame, copy that data into the frame-local
2740 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2741 FRAME controls where the data is copied to.
2743 The value is TO. */)
2744 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2746 Lisp_Object lface
, copy
;
2748 CHECK_SYMBOL (from
);
2753 /* Copy global definition of FROM. We don't make copies of
2754 strings etc. because 20.2 didn't do it either. */
2755 lface
= lface_from_face_name (NULL
, from
, 1);
2756 copy
= Finternal_make_lisp_face (to
, Qnil
);
2760 /* Copy frame-local definition of FROM. */
2761 if (NILP (new_frame
))
2763 CHECK_LIVE_FRAME (frame
);
2764 CHECK_LIVE_FRAME (new_frame
);
2765 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2766 copy
= Finternal_make_lisp_face (to
, new_frame
);
2769 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2770 LFACE_VECTOR_SIZE
* word_size
);
2772 /* Changing a named face means that all realized faces depending on
2773 that face are invalid. Since we cannot tell which realized faces
2774 depend on the face, make sure they are all removed. This is done
2775 by incrementing face_change_count. The next call to
2776 init_iterator will then free realized faces. */
2777 if (NILP (Fget (to
, Qface_no_inherit
)))
2779 ++face_change_count
;
2780 ++windows_or_buffers_changed
;
2787 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2788 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2789 doc
: /* Set attribute ATTR of FACE to VALUE.
2790 FRAME being a frame means change the face on that frame.
2791 FRAME nil means change the face of the selected frame.
2792 FRAME t means change the default for new frames.
2793 FRAME 0 means change the face on all frames, and change the default
2795 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2798 Lisp_Object old_value
= Qnil
;
2799 /* Set one of enum font_property_index (> 0) if ATTR is one of
2800 font-related attributes other than QCfont and QCfontset. */
2801 enum font_property_index prop_index
= 0;
2803 CHECK_SYMBOL (face
);
2804 CHECK_SYMBOL (attr
);
2806 face
= resolve_face_name (face
, 1);
2808 /* If FRAME is 0, change face on all frames, and change the
2809 default for new frames. */
2810 if (INTEGERP (frame
) && XINT (frame
) == 0)
2813 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2814 FOR_EACH_FRAME (tail
, frame
)
2815 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2819 /* Set lface to the Lisp attribute vector of FACE. */
2822 lface
= lface_from_face_name (NULL
, face
, 1);
2824 /* When updating face-new-frame-defaults, we put :ignore-defface
2825 where the caller wants `unspecified'. This forces the frame
2826 defaults to ignore the defface value. Otherwise, the defface
2827 will take effect, which is generally not what is intended.
2828 The value of that attribute will be inherited from some other
2829 face during face merging. See internal_merge_in_global_face. */
2830 if (UNSPECIFIEDP (value
))
2831 value
= QCignore_defface
;
2836 frame
= selected_frame
;
2838 CHECK_LIVE_FRAME (frame
);
2839 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2841 /* If a frame-local face doesn't exist yet, create one. */
2843 lface
= Finternal_make_lisp_face (face
, frame
);
2846 if (EQ (attr
, QCfamily
))
2848 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2850 CHECK_STRING (value
);
2851 if (SCHARS (value
) == 0)
2852 signal_error ("Invalid face family", value
);
2854 old_value
= LFACE_FAMILY (lface
);
2855 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2856 prop_index
= FONT_FAMILY_INDEX
;
2858 else if (EQ (attr
, QCfoundry
))
2860 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2862 CHECK_STRING (value
);
2863 if (SCHARS (value
) == 0)
2864 signal_error ("Invalid face foundry", value
);
2866 old_value
= LFACE_FOUNDRY (lface
);
2867 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2868 prop_index
= FONT_FOUNDRY_INDEX
;
2870 else if (EQ (attr
, QCheight
))
2872 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2874 if (EQ (face
, Qdefault
))
2876 /* The default face must have an absolute size. */
2877 if (!INTEGERP (value
) || XINT (value
) <= 0)
2878 signal_error ("Default face height not absolute and positive",
2883 /* For non-default faces, do a test merge with a random
2884 height to see if VALUE's ok. */
2885 Lisp_Object test
= merge_face_heights (value
,
2888 if (!INTEGERP (test
) || XINT (test
) <= 0)
2889 signal_error ("Face height does not produce a positive integer",
2894 old_value
= LFACE_HEIGHT (lface
);
2895 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2896 prop_index
= FONT_SIZE_INDEX
;
2898 else if (EQ (attr
, QCweight
))
2900 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2902 CHECK_SYMBOL (value
);
2903 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2904 signal_error ("Invalid face weight", value
);
2906 old_value
= LFACE_WEIGHT (lface
);
2907 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2908 prop_index
= FONT_WEIGHT_INDEX
;
2910 else if (EQ (attr
, QCslant
))
2912 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2914 CHECK_SYMBOL (value
);
2915 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2916 signal_error ("Invalid face slant", value
);
2918 old_value
= LFACE_SLANT (lface
);
2919 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2920 prop_index
= FONT_SLANT_INDEX
;
2922 else if (EQ (attr
, QCunderline
))
2926 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2928 else if (NILP (value
) || EQ (value
, Qt
))
2930 else if (STRINGP (value
) && SCHARS (value
) > 0)
2932 else if (CONSP (value
))
2934 Lisp_Object key
, val
, list
;
2939 while (!NILP (CAR_SAFE(list
)))
2941 key
= CAR_SAFE (list
);
2942 list
= CDR_SAFE (list
);
2943 val
= CAR_SAFE (list
);
2944 list
= CDR_SAFE (list
);
2946 if (NILP (key
) || NILP (val
))
2952 else if (EQ (key
, QCcolor
)
2953 && !(EQ (val
, Qforeground_color
)
2954 || (STRINGP (val
) && SCHARS (val
) > 0)))
2960 else if (EQ (key
, QCstyle
)
2961 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2970 signal_error ("Invalid face underline", value
);
2972 old_value
= LFACE_UNDERLINE (lface
);
2973 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2975 else if (EQ (attr
, QCoverline
))
2977 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2978 if ((SYMBOLP (value
)
2980 && !EQ (value
, Qnil
))
2981 /* Overline color. */
2983 && SCHARS (value
) == 0))
2984 signal_error ("Invalid face overline", value
);
2986 old_value
= LFACE_OVERLINE (lface
);
2987 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2989 else if (EQ (attr
, QCstrike_through
))
2991 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2992 if ((SYMBOLP (value
)
2994 && !EQ (value
, Qnil
))
2995 /* Strike-through color. */
2997 && SCHARS (value
) == 0))
2998 signal_error ("Invalid face strike-through", value
);
3000 old_value
= LFACE_STRIKE_THROUGH (lface
);
3001 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
3003 else if (EQ (attr
, QCbox
))
3007 /* Allow t meaning a simple box of width 1 in foreground color
3010 value
= make_number (1);
3012 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3014 else if (NILP (value
))
3016 else if (INTEGERP (value
))
3017 valid_p
= XINT (value
) != 0;
3018 else if (STRINGP (value
))
3019 valid_p
= SCHARS (value
) > 0;
3020 else if (CONSP (value
))
3036 if (EQ (k
, QCline_width
))
3038 if (!INTEGERP (v
) || XINT (v
) == 0)
3041 else if (EQ (k
, QCcolor
))
3043 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3046 else if (EQ (k
, QCstyle
))
3048 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3055 valid_p
= NILP (tem
);
3061 signal_error ("Invalid face box", value
);
3063 old_value
= LFACE_BOX (lface
);
3064 ASET (lface
, LFACE_BOX_INDEX
, value
);
3066 else if (EQ (attr
, QCinverse_video
)
3067 || EQ (attr
, QCreverse_video
))
3069 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3071 CHECK_SYMBOL (value
);
3072 if (!EQ (value
, Qt
) && !NILP (value
))
3073 signal_error ("Invalid inverse-video face attribute value", value
);
3075 old_value
= LFACE_INVERSE (lface
);
3076 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
3078 else if (EQ (attr
, QCforeground
))
3080 /* Compatibility with 20.x. */
3082 value
= Qunspecified
;
3083 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3085 /* Don't check for valid color names here because it depends
3086 on the frame (display) whether the color will be valid
3087 when the face is realized. */
3088 CHECK_STRING (value
);
3089 if (SCHARS (value
) == 0)
3090 signal_error ("Empty foreground color value", value
);
3092 old_value
= LFACE_FOREGROUND (lface
);
3093 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3095 else if (EQ (attr
, QCbackground
))
3097 /* Compatibility with 20.x. */
3099 value
= Qunspecified
;
3100 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3102 /* Don't check for valid color names here because it depends
3103 on the frame (display) whether the color will be valid
3104 when the face is realized. */
3105 CHECK_STRING (value
);
3106 if (SCHARS (value
) == 0)
3107 signal_error ("Empty background color value", value
);
3109 old_value
= LFACE_BACKGROUND (lface
);
3110 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3112 else if (EQ (attr
, QCstipple
))
3114 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
3115 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3117 && NILP (Fbitmap_spec_p (value
)))
3118 signal_error ("Invalid stipple attribute", value
);
3119 old_value
= LFACE_STIPPLE (lface
);
3120 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3121 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3123 else if (EQ (attr
, QCwidth
))
3125 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3127 CHECK_SYMBOL (value
);
3128 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3129 signal_error ("Invalid face width", value
);
3131 old_value
= LFACE_SWIDTH (lface
);
3132 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3133 prop_index
= FONT_WIDTH_INDEX
;
3135 else if (EQ (attr
, QCfont
))
3137 #ifdef HAVE_WINDOW_SYSTEM
3138 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3140 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3144 old_value
= LFACE_FONT (lface
);
3145 if (! FONTP (value
))
3147 if (STRINGP (value
))
3149 Lisp_Object name
= value
;
3150 int fontset
= fs_query_fontset (name
, 0);
3153 name
= fontset_ascii (fontset
);
3154 value
= font_spec_from_name (name
);
3156 signal_error ("Invalid font name", name
);
3159 signal_error ("Invalid font or font-spec", value
);
3162 f
= XFRAME (selected_frame
);
3165 if (! FONT_OBJECT_P (value
))
3167 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3168 Lisp_Object font_object
;
3170 font_object
= font_load_for_lface (f
, attrs
, value
);
3171 if (NILP (font_object
))
3172 signal_error ("Font not available", value
);
3173 value
= font_object
;
3175 set_lface_from_font (f
, lface
, value
, 1);
3178 ASET (lface
, LFACE_FONT_INDEX
, value
);
3180 #endif /* HAVE_WINDOW_SYSTEM */
3182 else if (EQ (attr
, QCfontset
))
3184 #ifdef HAVE_WINDOW_SYSTEM
3185 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3189 old_value
= LFACE_FONTSET (lface
);
3190 tmp
= Fquery_fontset (value
, Qnil
);
3192 signal_error ("Invalid fontset name", value
);
3193 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3195 #endif /* HAVE_WINDOW_SYSTEM */
3197 else if (EQ (attr
, QCinherit
))
3200 if (SYMBOLP (value
))
3203 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3204 if (!SYMBOLP (XCAR (tail
)))
3207 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3209 signal_error ("Invalid face inheritance", value
);
3211 else if (EQ (attr
, QCbold
))
3213 old_value
= LFACE_WEIGHT (lface
);
3214 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3215 prop_index
= FONT_WEIGHT_INDEX
;
3217 else if (EQ (attr
, QCitalic
))
3220 old_value
= LFACE_SLANT (lface
);
3221 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3222 prop_index
= FONT_SLANT_INDEX
;
3225 signal_error ("Invalid face attribute name", attr
);
3229 /* If a font-related attribute other than QCfont and QCfontset
3230 is specified, and if the original QCfont attribute has a font
3231 (font-spec or font-object), set the corresponding property in
3232 the font to nil so that the font selector doesn't think that
3233 the attribute is mandatory. Also, clear the average
3235 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3238 /* Changing a named face means that all realized faces depending on
3239 that face are invalid. Since we cannot tell which realized faces
3240 depend on the face, make sure they are all removed. This is done
3241 by incrementing face_change_count. The next call to
3242 init_iterator will then free realized faces. */
3244 && NILP (Fget (face
, Qface_no_inherit
))
3245 && NILP (Fequal (old_value
, value
)))
3247 ++face_change_count
;
3248 ++windows_or_buffers_changed
;
3251 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3252 && NILP (Fequal (old_value
, value
)))
3258 if (EQ (face
, Qdefault
))
3260 #ifdef HAVE_WINDOW_SYSTEM
3261 /* Changed font-related attributes of the `default' face are
3262 reflected in changed `font' frame parameters. */
3264 && (prop_index
|| EQ (attr
, QCfont
))
3265 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3266 set_font_frame_param (frame
, lface
);
3268 #endif /* HAVE_WINDOW_SYSTEM */
3270 if (EQ (attr
, QCforeground
))
3271 param
= Qforeground_color
;
3272 else if (EQ (attr
, QCbackground
))
3273 param
= Qbackground_color
;
3275 #ifdef HAVE_WINDOW_SYSTEM
3277 else if (EQ (face
, Qscroll_bar
))
3279 /* Changing the colors of `scroll-bar' sets frame parameters
3280 `scroll-bar-foreground' and `scroll-bar-background'. */
3281 if (EQ (attr
, QCforeground
))
3282 param
= Qscroll_bar_foreground
;
3283 else if (EQ (attr
, QCbackground
))
3284 param
= Qscroll_bar_background
;
3286 #endif /* not WINDOWSNT */
3287 else if (EQ (face
, Qborder
))
3289 /* Changing background color of `border' sets frame parameter
3291 if (EQ (attr
, QCbackground
))
3292 param
= Qborder_color
;
3294 else if (EQ (face
, Qcursor
))
3296 /* Changing background color of `cursor' sets frame parameter
3298 if (EQ (attr
, QCbackground
))
3299 param
= Qcursor_color
;
3301 else if (EQ (face
, Qmouse
))
3303 /* Changing background color of `mouse' sets frame parameter
3305 if (EQ (attr
, QCbackground
))
3306 param
= Qmouse_color
;
3308 #endif /* HAVE_WINDOW_SYSTEM */
3309 else if (EQ (face
, Qmenu
))
3311 /* Indicate that we have to update the menu bar when
3312 realizing faces on FRAME. FRAME t change the
3313 default for new frames. We do this by setting
3314 setting the flag in new face caches */
3317 struct frame
*f
= XFRAME (frame
);
3318 if (FRAME_FACE_CACHE (f
) == NULL
)
3319 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3320 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3323 menu_face_changed_default
= 1;
3329 /* Update `default-frame-alist', which is used for new frames. */
3331 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3334 /* Update the current frame's parameters. */
3337 cons
= XCAR (Vparam_value_alist
);
3338 XSETCAR (cons
, param
);
3339 XSETCDR (cons
, value
);
3340 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3349 /* Update the corresponding face when frame parameter PARAM on frame F
3350 has been assigned the value NEW_VALUE. */
3353 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3354 Lisp_Object new_value
)
3356 Lisp_Object face
= Qnil
;
3359 /* If there are no faces yet, give up. This is the case when called
3360 from Fx_create_frame, and we do the necessary things later in
3361 face-set-after-frame-defaults. */
3362 if (NILP (f
->face_alist
))
3365 if (EQ (param
, Qforeground_color
))
3368 lface
= lface_from_face_name (f
, face
, 1);
3369 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3370 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3371 realize_basic_faces (f
);
3373 else if (EQ (param
, Qbackground_color
))
3377 /* Changing the background color might change the background
3378 mode, so that we have to load new defface specs.
3379 Call frame-set-background-mode to do that. */
3380 XSETFRAME (frame
, f
);
3381 call1 (Qframe_set_background_mode
, frame
);
3384 lface
= lface_from_face_name (f
, face
, 1);
3385 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3386 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3387 realize_basic_faces (f
);
3389 #ifdef HAVE_WINDOW_SYSTEM
3390 else if (EQ (param
, Qborder_color
))
3393 lface
= lface_from_face_name (f
, face
, 1);
3394 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3395 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3397 else if (EQ (param
, Qcursor_color
))
3400 lface
= lface_from_face_name (f
, face
, 1);
3401 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3402 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3404 else if (EQ (param
, Qmouse_color
))
3407 lface
= lface_from_face_name (f
, face
, 1);
3408 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3409 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3413 /* Changing a named face means that all realized faces depending on
3414 that face are invalid. Since we cannot tell which realized faces
3415 depend on the face, make sure they are all removed. This is done
3416 by incrementing face_change_count. The next call to
3417 init_iterator will then free realized faces. */
3419 && NILP (Fget (face
, Qface_no_inherit
)))
3421 ++face_change_count
;
3422 ++windows_or_buffers_changed
;
3427 #ifdef HAVE_WINDOW_SYSTEM
3429 /* Set the `font' frame parameter of FRAME determined from the
3430 font-object set in `default' face attributes LFACE. */
3433 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3435 struct frame
*f
= XFRAME (frame
);
3438 if (FRAME_WINDOW_P (f
)
3439 /* Don't do anything if the font is `unspecified'. This can
3440 happen during frame creation. */
3441 && (font
= LFACE_FONT (lface
),
3442 ! UNSPECIFIEDP (font
)))
3444 if (FONT_SPEC_P (font
))
3446 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3449 ASET (lface
, LFACE_FONT_INDEX
, font
);
3451 f
->default_face_done_p
= 0;
3452 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3457 /* Get the value of X resource RESOURCE, class CLASS for the display
3458 of frame FRAME. This is here because ordinary `x-get-resource'
3459 doesn't take a frame argument. */
3461 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3462 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3463 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3465 Lisp_Object value
= Qnil
;
3466 CHECK_STRING (resource
);
3467 CHECK_STRING (class);
3468 CHECK_LIVE_FRAME (frame
);
3470 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3471 resource
, class, Qnil
, Qnil
);
3477 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3478 If VALUE is "on" or "true", return t. If VALUE is "off" or
3479 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3480 error; if SIGNAL_P is zero, return 0. */
3483 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3485 Lisp_Object result
= make_number (0);
3487 eassert (STRINGP (value
));
3489 if (xstrcasecmp (SSDATA (value
), "on") == 0
3490 || xstrcasecmp (SSDATA (value
), "true") == 0)
3492 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3493 || xstrcasecmp (SSDATA (value
), "false") == 0)
3495 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3496 result
= Qunspecified
;
3498 signal_error ("Invalid face attribute value from X resource", value
);
3504 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3505 Finternal_set_lisp_face_attribute_from_resource
,
3506 Sinternal_set_lisp_face_attribute_from_resource
,
3507 3, 4, 0, doc
: /* */)
3508 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3510 CHECK_SYMBOL (face
);
3511 CHECK_SYMBOL (attr
);
3512 CHECK_STRING (value
);
3514 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3515 value
= Qunspecified
;
3516 else if (EQ (attr
, QCheight
))
3518 value
= Fstring_to_number (value
, make_number (10));
3519 if (XINT (value
) <= 0)
3520 signal_error ("Invalid face height from X resource", value
);
3522 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3523 value
= face_boolean_x_resource_value (value
, 1);
3524 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3525 value
= intern (SSDATA (value
));
3526 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3527 value
= face_boolean_x_resource_value (value
, 1);
3528 else if (EQ (attr
, QCunderline
)
3529 || EQ (attr
, QCoverline
)
3530 || EQ (attr
, QCstrike_through
))
3532 Lisp_Object boolean_value
;
3534 /* If the result of face_boolean_x_resource_value is t or nil,
3535 VALUE does NOT specify a color. */
3536 boolean_value
= face_boolean_x_resource_value (value
, 0);
3537 if (SYMBOLP (boolean_value
))
3538 value
= boolean_value
;
3540 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3541 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3543 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3546 #endif /* HAVE_WINDOW_SYSTEM */
3549 /***********************************************************************
3551 ***********************************************************************/
3553 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3555 /* Make menus on frame F appear as specified by the `menu' face. */
3558 x_update_menu_appearance (struct frame
*f
)
3560 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3564 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3569 ptrdiff_t bufsize
= sizeof line
;
3570 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3571 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3572 const char *myname
= SSDATA (Vx_resource_name
);
3575 const char *popup_path
= "popup_menu";
3577 const char *popup_path
= "menu.popup";
3580 if (STRINGP (LFACE_FOREGROUND (lface
)))
3582 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3584 SDATA (LFACE_FOREGROUND (lface
)));
3585 XrmPutLineResource (&rdb
, line
);
3586 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3587 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3588 XrmPutLineResource (&rdb
, line
);
3592 if (STRINGP (LFACE_BACKGROUND (lface
)))
3594 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3596 SDATA (LFACE_BACKGROUND (lface
)));
3597 XrmPutLineResource (&rdb
, line
);
3599 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3600 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3601 XrmPutLineResource (&rdb
, line
);
3606 /* On Solaris 5.8, it's been reported that the `menu' face
3607 can be unspecified here, during startup. Why this
3608 happens remains unknown. -- cyd */
3609 && FONTP (LFACE_FONT (lface
))
3610 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3611 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3612 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3613 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3614 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3615 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3617 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3619 const char *suffix
= "List";
3622 #if defined HAVE_X_I18N
3624 const char *suffix
= "Set";
3626 const char *suffix
= "";
3633 #if defined HAVE_X_I18N
3634 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3636 char *fontsetname
= SSDATA (xlfd
);
3638 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3639 myname
, suffix
, fontsetname
);
3640 XrmPutLineResource (&rdb
, line
);
3642 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3643 myname
, popup_path
, suffix
, fontsetname
);
3644 XrmPutLineResource (&rdb
, line
);
3646 if (fontsetname
!= SSDATA (xlfd
))
3647 xfree (fontsetname
);
3651 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3652 free_frame_menubar (f
);
3659 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3662 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3663 Sface_attribute_relative_p
,
3665 doc
: /* Check whether a face attribute value is relative.
3666 Specifically, this function returns t if the attribute ATTRIBUTE
3667 with the value VALUE is relative.
3669 A relative value is one that doesn't entirely override whatever is
3670 inherited from another face. For most possible attributes,
3671 the only relative value that users see is `unspecified'.
3672 However, for :height, floating point values are also relative. */)
3673 (Lisp_Object attribute
, Lisp_Object value
)
3675 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3677 else if (EQ (attribute
, QCheight
))
3678 return INTEGERP (value
) ? Qnil
: Qt
;
3683 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3685 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3686 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3687 the result will be absolute, otherwise it will be relative. */)
3688 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3690 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3692 else if (EQ (attribute
, QCheight
))
3693 return merge_face_heights (value1
, value2
, value1
);
3699 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3700 Sinternal_get_lisp_face_attribute
,
3702 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3703 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3704 face attribute name, signal an error.
3705 If the optional argument FRAME is given, report on face SYMBOL in that
3706 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3707 frames). If FRAME is omitted or nil, use the selected frame. */)
3708 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3710 Lisp_Object lface
, value
= Qnil
;
3712 CHECK_SYMBOL (symbol
);
3713 CHECK_SYMBOL (keyword
);
3716 lface
= lface_from_face_name (NULL
, symbol
, 1);
3720 frame
= selected_frame
;
3721 CHECK_LIVE_FRAME (frame
);
3722 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3725 if (EQ (keyword
, QCfamily
))
3726 value
= LFACE_FAMILY (lface
);
3727 else if (EQ (keyword
, QCfoundry
))
3728 value
= LFACE_FOUNDRY (lface
);
3729 else if (EQ (keyword
, QCheight
))
3730 value
= LFACE_HEIGHT (lface
);
3731 else if (EQ (keyword
, QCweight
))
3732 value
= LFACE_WEIGHT (lface
);
3733 else if (EQ (keyword
, QCslant
))
3734 value
= LFACE_SLANT (lface
);
3735 else if (EQ (keyword
, QCunderline
))
3736 value
= LFACE_UNDERLINE (lface
);
3737 else if (EQ (keyword
, QCoverline
))
3738 value
= LFACE_OVERLINE (lface
);
3739 else if (EQ (keyword
, QCstrike_through
))
3740 value
= LFACE_STRIKE_THROUGH (lface
);
3741 else if (EQ (keyword
, QCbox
))
3742 value
= LFACE_BOX (lface
);
3743 else if (EQ (keyword
, QCinverse_video
)
3744 || EQ (keyword
, QCreverse_video
))
3745 value
= LFACE_INVERSE (lface
);
3746 else if (EQ (keyword
, QCforeground
))
3747 value
= LFACE_FOREGROUND (lface
);
3748 else if (EQ (keyword
, QCbackground
))
3749 value
= LFACE_BACKGROUND (lface
);
3750 else if (EQ (keyword
, QCstipple
))
3751 value
= LFACE_STIPPLE (lface
);
3752 else if (EQ (keyword
, QCwidth
))
3753 value
= LFACE_SWIDTH (lface
);
3754 else if (EQ (keyword
, QCinherit
))
3755 value
= LFACE_INHERIT (lface
);
3756 else if (EQ (keyword
, QCfont
))
3757 value
= LFACE_FONT (lface
);
3758 else if (EQ (keyword
, QCfontset
))
3759 value
= LFACE_FONTSET (lface
);
3761 signal_error ("Invalid face attribute name", keyword
);
3763 if (IGNORE_DEFFACE_P (value
))
3764 return Qunspecified
;
3770 DEFUN ("internal-lisp-face-attribute-values",
3771 Finternal_lisp_face_attribute_values
,
3772 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3773 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3774 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3777 Lisp_Object result
= Qnil
;
3779 CHECK_SYMBOL (attr
);
3781 if (EQ (attr
, QCunderline
))
3782 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3783 else if (EQ (attr
, QCoverline
))
3784 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3785 else if (EQ (attr
, QCstrike_through
))
3786 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3787 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3788 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3794 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3795 Sinternal_merge_in_global_face
, 2, 2, 0,
3796 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3797 Default face attributes override any local face attributes. */)
3798 (Lisp_Object face
, Lisp_Object frame
)
3801 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3802 struct frame
*f
= XFRAME (frame
);
3804 CHECK_LIVE_FRAME (frame
);
3805 global_lface
= lface_from_face_name (NULL
, face
, 1);
3806 local_lface
= lface_from_face_name (f
, face
, 0);
3807 if (NILP (local_lface
))
3808 local_lface
= Finternal_make_lisp_face (face
, frame
);
3810 /* Make every specified global attribute override the local one.
3811 BEWARE!! This is only used from `face-set-after-frame-default' where
3812 the local frame is defined from default specs in `face-defface-spec'
3813 and those should be overridden by global settings. Hence the strange
3814 "global before local" priority. */
3815 lvec
= XVECTOR (local_lface
)->contents
;
3816 gvec
= XVECTOR (global_lface
)->contents
;
3817 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3818 if (IGNORE_DEFFACE_P (gvec
[i
]))
3819 lvec
[i
] = Qunspecified
;
3820 else if (! UNSPECIFIEDP (gvec
[i
]))
3823 /* If the default face was changed, update the face cache and the
3824 `font' frame parameter. */
3825 if (EQ (face
, Qdefault
))
3827 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3828 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3829 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3831 /* This can be NULL (e.g., in batch mode). */
3834 /* Ensure that the face vector is fully specified by merging
3835 the previously-cached vector. */
3836 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3837 merge_face_vectors (f
, lvec
, attrs
, 0);
3838 memcpy (lvec
, attrs
, sizeof attrs
);
3839 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3841 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3842 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3843 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3844 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3845 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3846 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3847 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3850 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3851 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3855 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3856 Fmodify_frame_parameters (frame
,
3857 Fcons (Fcons (Qforeground_color
,
3858 gvec
[LFACE_FOREGROUND_INDEX
]),
3861 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3862 Fmodify_frame_parameters (frame
,
3863 Fcons (Fcons (Qbackground_color
,
3864 gvec
[LFACE_BACKGROUND_INDEX
]),
3873 /* The following function is implemented for compatibility with 20.2.
3874 The function is used in x-resolve-fonts when it is asked to
3875 return fonts with the same size as the font of a face. This is
3876 done in fontset.el. */
3878 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3879 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3880 The font name is, by default, for ASCII characters.
3881 If the optional argument FRAME is given, report on face FACE in that frame.
3882 If FRAME is t, report on the defaults for face FACE (for new frames).
3883 The font default for a face is either nil, or a list
3884 of the form (bold), (italic) or (bold italic).
3885 If FRAME is omitted or nil, use the selected frame. And, in this case,
3886 if the optional third argument CHARACTER is given,
3887 return the font name used for CHARACTER. */)
3888 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3892 Lisp_Object result
= Qnil
;
3893 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3895 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3896 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3897 result
= Fcons (Qbold
, result
);
3899 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3900 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3901 result
= Fcons (Qitalic
, result
);
3907 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3908 int face_id
= lookup_named_face (f
, face
, 1);
3909 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3913 #ifdef HAVE_WINDOW_SYSTEM
3914 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3916 CHECK_CHARACTER (character
);
3917 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3918 fface
= FACE_FROM_ID (f
, face_id
);
3921 ? fface
->font
->props
[FONT_NAME_INDEX
]
3923 #else /* !HAVE_WINDOW_SYSTEM */
3924 return build_string (FRAME_MSDOS_P (f
)
3926 : FRAME_W32_P (f
) ? "w32term"
3933 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3934 all attributes are `equal'. Tries to be fast because this function
3935 is called quite often. */
3938 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3940 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3941 and the other is specified. */
3942 if (XTYPE (v1
) != XTYPE (v2
))
3951 if (SBYTES (v1
) != SBYTES (v2
))
3954 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3961 return !NILP (Fequal (v1
, v2
));
3966 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3967 all attributes are `equal'. Tries to be fast because this function
3968 is called quite often. */
3971 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3975 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3976 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3982 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3983 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3984 doc
: /* True if FACE1 and FACE2 are equal.
3985 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3986 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3987 If FRAME is omitted or nil, use the selected frame. */)
3988 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3992 Lisp_Object lface1
, lface2
;
3997 /* Don't use check_x_frame here because this function is called
3998 before X frames exist. At that time, if FRAME is nil,
3999 selected_frame will be used which is the frame dumped with
4000 Emacs. That frame is not an X frame. */
4001 f
= frame_or_selected_frame (frame
, 2);
4003 lface1
= lface_from_face_name (f
, face1
, 1);
4004 lface2
= lface_from_face_name (f
, face2
, 1);
4005 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4006 XVECTOR (lface2
)->contents
);
4007 return equal_p
? Qt
: Qnil
;
4011 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4012 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4013 doc
: /* True if FACE has no attribute specified.
4014 If the optional argument FRAME is given, report on face FACE in that frame.
4015 If FRAME is t, report on the defaults for face FACE (for new frames).
4016 If FRAME is omitted or nil, use the selected frame. */)
4017 (Lisp_Object face
, Lisp_Object frame
)
4024 frame
= selected_frame
;
4025 CHECK_LIVE_FRAME (frame
);
4029 lface
= lface_from_face_name (NULL
, face
, 1);
4031 lface
= lface_from_face_name (f
, face
, 1);
4033 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4034 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4037 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4041 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4043 doc
: /* Return an alist of frame-local faces defined on FRAME.
4044 For internal use only. */)
4047 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4048 return f
->face_alist
;
4052 /* Return a hash code for Lisp string STRING with case ignored. Used
4053 below in computing a hash value for a Lisp face. */
4055 static inline unsigned
4056 hash_string_case_insensitive (Lisp_Object string
)
4058 const unsigned char *s
;
4060 eassert (STRINGP (string
));
4061 for (s
= SDATA (string
); *s
; ++s
)
4062 hash
= (hash
<< 1) ^ tolower (*s
);
4067 /* Return a hash code for face attribute vector V. */
4069 static inline unsigned
4070 lface_hash (Lisp_Object
*v
)
4072 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4073 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4074 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4075 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4076 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4077 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4078 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4079 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4083 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4084 considering charsets/registries). They do if they specify the same
4085 family, point size, weight, width, slant, and font. Both
4086 LFACE1 and LFACE2 must be fully-specified. */
4089 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4091 eassert (lface_fully_specified_p (lface1
)
4092 && lface_fully_specified_p (lface2
));
4093 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4094 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4095 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4096 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4097 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4098 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4099 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4100 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4101 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4102 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4103 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4104 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4105 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4106 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4112 /***********************************************************************
4114 ***********************************************************************/
4116 /* Allocate and return a new realized face for Lisp face attribute
4119 static struct face
*
4120 make_realized_face (Lisp_Object
*attr
)
4122 struct face
*face
= xzalloc (sizeof *face
);
4123 face
->ascii_face
= face
;
4124 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4129 /* Free realized face FACE, including its X resources. FACE may
4133 free_realized_face (struct frame
*f
, struct face
*face
)
4137 #ifdef HAVE_WINDOW_SYSTEM
4138 if (FRAME_WINDOW_P (f
))
4140 /* Free fontset of FACE if it is ASCII face. */
4141 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4142 free_face_fontset (f
, face
);
4147 font_done_for_face (f
, face
);
4148 x_free_gc (f
, face
->gc
);
4153 free_face_colors (f
, face
);
4154 x_destroy_bitmap (f
, face
->stipple
);
4156 #endif /* HAVE_WINDOW_SYSTEM */
4163 /* Prepare face FACE for subsequent display on frame F. This
4164 allocated GCs if they haven't been allocated yet or have been freed
4165 by clearing the face cache. */
4168 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4170 #ifdef HAVE_WINDOW_SYSTEM
4171 eassert (FRAME_WINDOW_P (f
));
4176 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4178 xgcv
.foreground
= face
->foreground
;
4179 xgcv
.background
= face
->background
;
4180 #ifdef HAVE_X_WINDOWS
4181 xgcv
.graphics_exposures
= False
;
4185 #ifdef HAVE_X_WINDOWS
4188 xgcv
.fill_style
= FillOpaqueStippled
;
4189 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4190 mask
|= GCFillStyle
| GCStipple
;
4193 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4195 font_prepare_for_face (f
, face
);
4198 #endif /* HAVE_WINDOW_SYSTEM */
4202 /* Returns the `distance' between the colors X and Y. */
4205 color_distance (XColor
*x
, XColor
*y
)
4207 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4208 Quoting from that paper:
4210 This formula has results that are very close to L*u*v* (with the
4211 modified lightness curve) and, more importantly, it is a more even
4212 algorithm: it does not have a range of colors where it suddenly
4213 gives far from optimal results.
4215 See <http://www.compuphase.com/cmetric.htm> for more info. */
4217 long r
= (x
->red
- y
->red
) >> 8;
4218 long g
= (x
->green
- y
->green
) >> 8;
4219 long b
= (x
->blue
- y
->blue
) >> 8;
4220 long r_mean
= (x
->red
+ y
->red
) >> 9;
4223 (((512 + r_mean
) * r
* r
) >> 8)
4225 + (((767 - r_mean
) * b
* b
) >> 8);
4229 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4230 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4231 COLOR1 and COLOR2 may be either strings containing the color name,
4232 or lists of the form (RED GREEN BLUE).
4233 If FRAME is unspecified or nil, the current frame is used. */)
4234 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4237 XColor cdef1
, cdef2
;
4240 frame
= selected_frame
;
4241 CHECK_LIVE_FRAME (frame
);
4244 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4245 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4246 signal_error ("Invalid color", color1
);
4247 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4248 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4249 signal_error ("Invalid color", color2
);
4251 return make_number (color_distance (&cdef1
, &cdef2
));
4255 /***********************************************************************
4257 ***********************************************************************/
4259 /* Return a new face cache for frame F. */
4261 static struct face_cache
*
4262 make_face_cache (struct frame
*f
)
4264 struct face_cache
*c
;
4267 c
= xzalloc (sizeof *c
);
4268 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4269 c
->buckets
= xzalloc (size
);
4271 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4273 c
->menu_face_changed_p
= menu_face_changed_default
;
4278 /* Clear out all graphics contexts for all realized faces, except for
4279 the basic faces. This should be done from time to time just to avoid
4280 keeping too many graphics contexts that are no longer needed. */
4283 clear_face_gcs (struct face_cache
*c
)
4285 if (c
&& FRAME_WINDOW_P (c
->f
))
4287 #ifdef HAVE_WINDOW_SYSTEM
4289 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4291 struct face
*face
= c
->faces_by_id
[i
];
4292 if (face
&& face
->gc
)
4296 font_done_for_face (c
->f
, face
);
4297 x_free_gc (c
->f
, face
->gc
);
4302 #endif /* HAVE_WINDOW_SYSTEM */
4307 /* Free all realized faces in face cache C, including basic faces.
4308 C may be null. If faces are freed, make sure the frame's current
4309 matrix is marked invalid, so that a display caused by an expose
4310 event doesn't try to use faces we destroyed. */
4313 free_realized_faces (struct face_cache
*c
)
4318 struct frame
*f
= c
->f
;
4320 /* We must block input here because we can't process X events
4321 safely while only some faces are freed, or when the frame's
4322 current matrix still references freed faces. */
4325 for (i
= 0; i
< c
->used
; ++i
)
4327 free_realized_face (f
, c
->faces_by_id
[i
]);
4328 c
->faces_by_id
[i
] = NULL
;
4332 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4333 memset (c
->buckets
, 0, size
);
4335 /* Must do a thorough redisplay the next time. Mark current
4336 matrices as invalid because they will reference faces freed
4337 above. This function is also called when a frame is
4338 destroyed. In this case, the root window of F is nil. */
4339 if (WINDOWP (f
->root_window
))
4341 clear_current_matrices (f
);
4342 ++windows_or_buffers_changed
;
4350 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4351 This is done after attributes of a named face have been changed,
4352 because we can't tell which realized faces depend on that face. */
4355 free_all_realized_faces (Lisp_Object frame
)
4360 FOR_EACH_FRAME (rest
, frame
)
4361 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4364 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4368 /* Free face cache C and faces in it, including their X resources. */
4371 free_face_cache (struct face_cache
*c
)
4375 free_realized_faces (c
);
4377 xfree (c
->faces_by_id
);
4383 /* Cache realized face FACE in face cache C. HASH is the hash value
4384 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4385 FACE), insert the new face to the beginning of the collision list
4386 of the face hash table of C. Otherwise, add the new face to the
4387 end of the collision list. This way, lookup_face can quickly find
4388 that a requested face is not cached. */
4391 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4393 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4397 if (face
->ascii_face
!= face
)
4399 struct face
*last
= c
->buckets
[i
];
4410 c
->buckets
[i
] = face
;
4411 face
->prev
= face
->next
= NULL
;
4417 face
->next
= c
->buckets
[i
];
4419 face
->next
->prev
= face
;
4420 c
->buckets
[i
] = face
;
4423 /* Find a free slot in C->faces_by_id and use the index of the free
4424 slot as FACE->id. */
4425 for (i
= 0; i
< c
->used
; ++i
)
4426 if (c
->faces_by_id
[i
] == NULL
)
4431 /* Check that FACE got a unique id. */
4436 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4437 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4443 #endif /* GLYPH_DEBUG */
4445 /* Maybe enlarge C->faces_by_id. */
4448 if (c
->used
== c
->size
)
4449 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4450 sizeof *c
->faces_by_id
);
4454 c
->faces_by_id
[i
] = face
;
4458 /* Remove face FACE from cache C. */
4461 uncache_face (struct face_cache
*c
, struct face
*face
)
4463 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4466 face
->prev
->next
= face
->next
;
4468 c
->buckets
[i
] = face
->next
;
4471 face
->next
->prev
= face
->prev
;
4473 c
->faces_by_id
[face
->id
] = NULL
;
4474 if (face
->id
== c
->used
)
4479 /* Look up a realized face with face attributes ATTR in the face cache
4480 of frame F. The face will be used to display ASCII characters.
4481 Value is the ID of the face found. If no suitable face is found,
4482 realize a new one. */
4485 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4487 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4492 eassert (cache
!= NULL
);
4493 check_lface_attrs (attr
);
4495 /* Look up ATTR in the face cache. */
4496 hash
= lface_hash (attr
);
4497 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4499 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4501 if (face
->ascii_face
!= face
)
4503 /* There's no more ASCII face. */
4507 if (face
->hash
== hash
4508 && lface_equal_p (face
->lface
, attr
))
4512 /* If not found, realize a new face. */
4514 face
= realize_face (cache
, attr
, -1);
4517 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4518 #endif /* GLYPH_DEBUG */
4523 #ifdef HAVE_WINDOW_SYSTEM
4524 /* Look up a realized face that has the same attributes as BASE_FACE
4525 except for the font in the face cache of frame F. If FONT-OBJECT
4526 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4527 the face has no font. Value is the ID of the face found. If no
4528 suitable face is found, realize a new one. */
4531 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4533 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4538 eassert (cache
!= NULL
);
4539 base_face
= base_face
->ascii_face
;
4540 hash
= lface_hash (base_face
->lface
);
4541 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4543 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4545 if (face
->ascii_face
== face
)
4547 if (face
->ascii_face
== base_face
4548 && face
->font
== (NILP (font_object
) ? NULL
4549 : XFONT_OBJECT (font_object
))
4550 && lface_equal_p (face
->lface
, base_face
->lface
))
4554 /* If not found, realize a new face. */
4555 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4558 #endif /* HAVE_WINDOW_SYSTEM */
4560 /* Return the face id of the realized face for named face SYMBOL on
4561 frame F suitable for displaying ASCII characters. Value is -1 if
4562 the face couldn't be determined, which might happen if the default
4563 face isn't realized and cannot be realized. */
4566 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4568 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4569 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4570 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4572 if (default_face
== NULL
)
4574 if (!realize_basic_faces (f
))
4576 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4577 if (default_face
== NULL
)
4578 abort (); /* realize_basic_faces must have set it up */
4581 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4584 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4585 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4587 return lookup_face (f
, attrs
);
4591 /* Return the display face-id of the basic face whose canonical face-id
4592 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4593 basic face has bee remapped via Vface_remapping_alist. This function is
4594 conservative: if something goes wrong, it will simply return FACE_ID
4595 rather than signal an error. */
4598 lookup_basic_face (struct frame
*f
, int face_id
)
4600 Lisp_Object name
, mapping
;
4601 int remapped_face_id
;
4603 if (NILP (Vface_remapping_alist
))
4604 return face_id
; /* Nothing to do. */
4608 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4609 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4610 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4611 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4612 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4613 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4614 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4615 case BORDER_FACE_ID
: name
= Qborder
; break;
4616 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4617 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4618 case MENU_FACE_ID
: name
= Qmenu
; break;
4621 abort (); /* the caller is supposed to pass us a basic face id */
4624 /* Do a quick scan through Vface_remapping_alist, and return immediately
4625 if there is no remapping for face NAME. This is just an optimization
4626 for the very common no-remapping case. */
4627 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4629 return face_id
; /* Give up. */
4631 /* If there is a remapping entry, lookup the face using NAME, which will
4632 handle the remapping too. */
4633 remapped_face_id
= lookup_named_face (f
, name
, 0);
4634 if (remapped_face_id
< 0)
4635 return face_id
; /* Give up. */
4637 return remapped_face_id
;
4641 /* Return a face for charset ASCII that is like the face with id
4642 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4643 STEPS < 0 means larger. Value is the id of the face. */
4646 smaller_face (struct frame
*f
, int face_id
, int steps
)
4648 #ifdef HAVE_WINDOW_SYSTEM
4650 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4651 int pt
, last_pt
, last_height
;
4654 struct face
*new_face
;
4656 /* If not called for an X frame, just return the original face. */
4657 if (FRAME_TERMCAP_P (f
))
4660 /* Try in increments of 1/2 pt. */
4661 delta
= steps
< 0 ? 5 : -5;
4662 steps
= eabs (steps
);
4664 face
= FACE_FROM_ID (f
, face_id
);
4665 memcpy (attrs
, face
->lface
, sizeof attrs
);
4666 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4667 new_face_id
= face_id
;
4668 last_height
= FONT_HEIGHT (face
->font
);
4672 /* Give up if we cannot find a font within 10pt. */
4673 && eabs (last_pt
- pt
) < 100)
4675 /* Look up a face for a slightly smaller/larger font. */
4677 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4678 new_face_id
= lookup_face (f
, attrs
);
4679 new_face
= FACE_FROM_ID (f
, new_face_id
);
4681 /* If height changes, count that as one step. */
4682 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4683 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4686 last_height
= FONT_HEIGHT (new_face
->font
);
4693 #else /* not HAVE_WINDOW_SYSTEM */
4697 #endif /* not HAVE_WINDOW_SYSTEM */
4701 /* Return a face for charset ASCII that is like the face with id
4702 FACE_ID on frame F, but has height HEIGHT. */
4705 face_with_height (struct frame
*f
, int face_id
, int height
)
4707 #ifdef HAVE_WINDOW_SYSTEM
4709 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4711 if (FRAME_TERMCAP_P (f
)
4715 face
= FACE_FROM_ID (f
, face_id
);
4716 memcpy (attrs
, face
->lface
, sizeof attrs
);
4717 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4718 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4719 face_id
= lookup_face (f
, attrs
);
4720 #endif /* HAVE_WINDOW_SYSTEM */
4726 /* Return the face id of the realized face for named face SYMBOL on
4727 frame F suitable for displaying ASCII characters, and use
4728 attributes of the face FACE_ID for attributes that aren't
4729 completely specified by SYMBOL. This is like lookup_named_face,
4730 except that the default attributes come from FACE_ID, not from the
4731 default face. FACE_ID is assumed to be already realized. */
4734 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4737 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4738 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4739 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4744 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4747 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4748 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4749 return lookup_face (f
, attrs
);
4752 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4753 Sface_attributes_as_vector
, 1, 1, 0,
4754 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4758 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4760 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4767 /***********************************************************************
4768 Face capability testing
4769 ***********************************************************************/
4772 /* If the distance (as returned by color_distance) between two colors is
4773 less than this, then they are considered the same, for determining
4774 whether a color is supported or not. The range of values is 0-65535. */
4776 #define TTY_SAME_COLOR_THRESHOLD 10000
4778 #ifdef HAVE_WINDOW_SYSTEM
4780 /* Return non-zero if all the face attributes in ATTRS are supported
4781 on the window-system frame F.
4783 The definition of `supported' is somewhat heuristic, but basically means
4784 that a face containing all the attributes in ATTRS, when merged with the
4785 default face for display, can be represented in a way that's
4787 \(1) different in appearance than the default face, and
4788 \(2) `close in spirit' to what the attributes specify, if not exact. */
4791 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4792 struct face
*def_face
)
4794 Lisp_Object
*def_attrs
= def_face
->lface
;
4796 /* Check that other specified attributes are different that the default
4798 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4799 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4800 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4801 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4802 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4803 def_attrs
[LFACE_INVERSE_INDEX
]))
4804 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4805 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4806 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4807 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4808 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4809 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4810 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4811 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4812 def_attrs
[LFACE_STIPPLE_INDEX
]))
4813 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4814 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4815 def_attrs
[LFACE_OVERLINE_INDEX
]))
4816 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4817 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4818 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4819 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4820 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4821 def_attrs
[LFACE_BOX_INDEX
])))
4824 /* Check font-related attributes, as those are the most commonly
4825 "unsupported" on a window-system (because of missing fonts). */
4826 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4827 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4828 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4829 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4830 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4831 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4835 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4838 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4840 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4842 face_id
= lookup_face (f
, merged_attrs
);
4843 face
= FACE_FROM_ID (f
, face_id
);
4846 error ("Cannot make face");
4848 /* If the font is the same, or no font is found, then not
4850 if (face
->font
== def_face
->font
4853 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4854 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4858 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4859 || face
->font
->driver
->case_sensitive
)
4861 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4862 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4863 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4864 s2
, make_number (0), Qnil
, Qt
), Qt
))
4870 /* Everything checks out, this face is supported. */
4874 #endif /* HAVE_WINDOW_SYSTEM */
4876 /* Return non-zero if all the face attributes in ATTRS are supported
4879 The definition of `supported' is somewhat heuristic, but basically means
4880 that a face containing all the attributes in ATTRS, when merged
4881 with the default face for display, can be represented in a way that's
4883 \(1) different in appearance than the default face, and
4884 \(2) `close in spirit' to what the attributes specify, if not exact.
4886 Point (2) implies that a `:weight black' attribute will be satisfied
4887 by any terminal that can display bold, and a `:foreground "yellow"' as
4888 long as the terminal can display a yellowish color, but `:slant italic'
4889 will _not_ be satisfied by the tty display code's automatic
4890 substitution of a `dim' face for italic. */
4893 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
,
4894 struct face
*def_face
)
4897 Lisp_Object val
, fg
, bg
;
4898 XColor fg_tty_color
, fg_std_color
;
4899 XColor bg_tty_color
, bg_std_color
;
4900 unsigned test_caps
= 0;
4901 Lisp_Object
*def_attrs
= def_face
->lface
;
4903 /* First check some easy-to-check stuff; ttys support none of the
4904 following attributes, so we can just return false if any are requested
4905 (even if `nominal' values are specified, we should still return false,
4906 as that will be the same value that the default face uses). We
4907 consider :slant unsupportable on ttys, even though the face code
4908 actually `fakes' them using a dim attribute if possible. This is
4909 because the faked result is too different from what the face
4911 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4912 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4913 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4914 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4915 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4916 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4917 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4918 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4921 /* Test for terminal `capabilities' (non-color character attributes). */
4923 /* font weight (bold/dim) */
4924 val
= attrs
[LFACE_WEIGHT_INDEX
];
4925 if (!UNSPECIFIEDP (val
)
4926 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4928 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4932 if (def_weight
> 100)
4933 return 0; /* same as default */
4934 test_caps
= TTY_CAP_BOLD
;
4936 else if (weight
< 100)
4938 if (def_weight
< 100)
4939 return 0; /* same as default */
4940 test_caps
= TTY_CAP_DIM
;
4942 else if (def_weight
== 100)
4943 return 0; /* same as default */
4947 val
= attrs
[LFACE_SLANT_INDEX
];
4948 if (!UNSPECIFIEDP (val
)
4949 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4951 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4952 if (slant
== 100 || slant
== def_slant
)
4953 return 0; /* same as default */
4955 test_caps
|= TTY_CAP_ITALIC
;
4959 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4960 if (!UNSPECIFIEDP (val
))
4963 return 0; /* ttys can't use colored underlines */
4964 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4965 return 0; /* same as default */
4967 test_caps
|= TTY_CAP_UNDERLINE
;
4971 val
= attrs
[LFACE_INVERSE_INDEX
];
4972 if (!UNSPECIFIEDP (val
))
4974 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4975 return 0; /* same as default */
4977 test_caps
|= TTY_CAP_INVERSE
;
4981 /* Color testing. */
4983 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4984 we use them when calling `tty_capable_p' below, even if the face
4985 specifies no colors. */
4986 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4987 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4989 /* Check if foreground color is close enough. */
4990 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4993 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4995 if (face_attr_equal_p (fg
, def_fg
))
4996 return 0; /* same as default */
4997 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4998 return 0; /* not a valid color */
4999 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5000 > TTY_SAME_COLOR_THRESHOLD
)
5001 return 0; /* displayed color is too different */
5003 /* Make sure the color is really different than the default. */
5005 XColor def_fg_color
;
5006 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5007 && (color_distance (&fg_tty_color
, &def_fg_color
)
5008 <= TTY_SAME_COLOR_THRESHOLD
))
5013 /* Check if background color is close enough. */
5014 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5017 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5019 if (face_attr_equal_p (bg
, def_bg
))
5020 return 0; /* same as default */
5021 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5022 return 0; /* not a valid color */
5023 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5024 > TTY_SAME_COLOR_THRESHOLD
)
5025 return 0; /* displayed color is too different */
5027 /* Make sure the color is really different than the default. */
5029 XColor def_bg_color
;
5030 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5031 && (color_distance (&bg_tty_color
, &def_bg_color
)
5032 <= TTY_SAME_COLOR_THRESHOLD
))
5037 /* If both foreground and background are requested, see if the
5038 distance between them is OK. We just check to see if the distance
5039 between the tty's foreground and background is close enough to the
5040 distance between the standard foreground and background. */
5041 if (STRINGP (fg
) && STRINGP (bg
))
5044 = (color_distance (&fg_std_color
, &bg_std_color
)
5045 - color_distance (&fg_tty_color
, &bg_tty_color
));
5046 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5047 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5052 /* See if the capabilities we selected above are supported, with the
5054 if (test_caps
!= 0 &&
5055 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
5056 bg_tty_color
.pixel
))
5060 /* Hmmm, everything checks out, this terminal must support this face. */
5065 DEFUN ("display-supports-face-attributes-p",
5066 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5068 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5069 The optional argument DISPLAY can be a display name, a frame, or
5070 nil (meaning the selected frame's display).
5072 The definition of `supported' is somewhat heuristic, but basically means
5073 that a face containing all the attributes in ATTRIBUTES, when merged
5074 with the default face for display, can be represented in a way that's
5076 \(1) different in appearance than the default face, and
5077 \(2) `close in spirit' to what the attributes specify, if not exact.
5079 Point (2) implies that a `:weight black' attribute will be satisfied by
5080 any display that can display bold, and a `:foreground \"yellow\"' as long
5081 as it can display a yellowish color, but `:slant italic' will _not_ be
5082 satisfied by the tty display code's automatic substitution of a `dim'
5083 face for italic. */)
5084 (Lisp_Object attributes
, Lisp_Object display
)
5086 int supports
= 0, i
;
5089 struct face
*def_face
;
5090 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5092 if (noninteractive
|| !initialized
)
5093 /* We may not be able to access low-level face information in batch
5094 mode, or before being dumped, and this function is not going to
5095 be very useful in those cases anyway, so just give up. */
5099 frame
= selected_frame
;
5100 else if (FRAMEP (display
))
5104 /* Find any frame on DISPLAY. */
5105 Lisp_Object fl_tail
;
5108 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5110 frame
= XCAR (fl_tail
);
5111 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5112 XFRAME (frame
)->param_alist
)),
5118 CHECK_LIVE_FRAME (frame
);
5121 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5122 attrs
[i
] = Qunspecified
;
5123 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5125 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5126 if (def_face
== NULL
)
5128 if (! realize_basic_faces (f
))
5129 error ("Cannot realize default face");
5130 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5131 if (def_face
== NULL
)
5132 abort (); /* realize_basic_faces must have set it up */
5135 /* Dispatch to the appropriate handler. */
5136 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5137 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5138 #ifdef HAVE_WINDOW_SYSTEM
5140 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5143 return supports
? Qt
: Qnil
;
5147 /***********************************************************************
5149 ***********************************************************************/
5151 DEFUN ("internal-set-font-selection-order",
5152 Finternal_set_font_selection_order
,
5153 Sinternal_set_font_selection_order
, 1, 1, 0,
5154 doc
: /* Set font selection order for face font selection to ORDER.
5155 ORDER must be a list of length 4 containing the symbols `:width',
5156 `:height', `:weight', and `:slant'. Face attributes appearing
5157 first in ORDER are matched first, e.g. if `:height' appears before
5158 `:weight' in ORDER, font selection first tries to find a font with
5159 a suitable height, and then tries to match the font weight.
5165 int indices
[DIM (font_sort_order
)];
5168 memset (indices
, 0, sizeof indices
);
5172 CONSP (list
) && i
< DIM (indices
);
5173 list
= XCDR (list
), ++i
)
5175 Lisp_Object attr
= XCAR (list
);
5178 if (EQ (attr
, QCwidth
))
5180 else if (EQ (attr
, QCheight
))
5181 xlfd
= XLFD_POINT_SIZE
;
5182 else if (EQ (attr
, QCweight
))
5184 else if (EQ (attr
, QCslant
))
5189 if (indices
[i
] != 0)
5194 if (!NILP (list
) || i
!= DIM (indices
))
5195 signal_error ("Invalid font sort order", order
);
5196 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5197 if (indices
[i
] == 0)
5198 signal_error ("Invalid font sort order", order
);
5200 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5202 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5203 free_all_realized_faces (Qnil
);
5206 font_update_sort_order (font_sort_order
);
5212 DEFUN ("internal-set-alternative-font-family-alist",
5213 Finternal_set_alternative_font_family_alist
,
5214 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5215 doc
: /* Define alternative font families to try in face font selection.
5216 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5217 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5218 be found. Value is ALIST. */)
5221 Lisp_Object entry
, tail
, tail2
;
5224 alist
= Fcopy_sequence (alist
);
5225 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5227 entry
= XCAR (tail
);
5229 entry
= Fcopy_sequence (entry
);
5230 XSETCAR (tail
, entry
);
5231 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5232 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5235 Vface_alternative_font_family_alist
= alist
;
5236 free_all_realized_faces (Qnil
);
5241 DEFUN ("internal-set-alternative-font-registry-alist",
5242 Finternal_set_alternative_font_registry_alist
,
5243 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5244 doc
: /* Define alternative font registries to try in face font selection.
5245 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5246 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5247 be found. Value is ALIST. */)
5250 Lisp_Object entry
, tail
, tail2
;
5253 alist
= Fcopy_sequence (alist
);
5254 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5256 entry
= XCAR (tail
);
5258 entry
= Fcopy_sequence (entry
);
5259 XSETCAR (tail
, entry
);
5260 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5261 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5263 Vface_alternative_font_registry_alist
= alist
;
5264 free_all_realized_faces (Qnil
);
5269 #ifdef HAVE_WINDOW_SYSTEM
5271 /* Return the fontset id of the base fontset name or alias name given
5272 by the fontset attribute of ATTRS. Value is -1 if the fontset
5273 attribute of ATTRS doesn't name a fontset. */
5276 face_fontset (Lisp_Object
*attrs
)
5280 name
= attrs
[LFACE_FONTSET_INDEX
];
5281 if (!STRINGP (name
))
5283 return fs_query_fontset (name
, 0);
5286 #endif /* HAVE_WINDOW_SYSTEM */
5290 /***********************************************************************
5292 ***********************************************************************/
5294 /* Realize basic faces on frame F. Value is zero if frame parameters
5295 of F don't contain enough information needed to realize the default
5299 realize_basic_faces (struct frame
*f
)
5302 ptrdiff_t count
= SPECPDL_INDEX ();
5304 /* Block input here so that we won't be surprised by an X expose
5305 event, for instance, without having the faces set up. */
5307 specbind (Qscalable_fonts_allowed
, Qt
);
5309 if (realize_default_face (f
))
5311 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5312 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5313 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5314 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5315 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5316 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5317 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5318 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5319 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5320 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5321 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5323 /* Reflect changes in the `menu' face in menu bars. */
5324 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5326 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5327 #ifdef USE_X_TOOLKIT
5328 if (FRAME_WINDOW_P (f
))
5329 x_update_menu_appearance (f
);
5336 unbind_to (count
, Qnil
);
5342 /* Realize the default face on frame F. If the face is not fully
5343 specified, make it fully-specified. Attributes of the default face
5344 that are not explicitly specified are taken from frame parameters. */
5347 realize_default_face (struct frame
*f
)
5349 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5351 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5354 /* If the `default' face is not yet known, create it. */
5355 lface
= lface_from_face_name (f
, Qdefault
, 0);
5359 XSETFRAME (frame
, f
);
5360 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5363 #ifdef HAVE_WINDOW_SYSTEM
5364 if (FRAME_WINDOW_P (f
))
5366 Lisp_Object font_object
;
5368 XSETFONT (font_object
, FRAME_FONT (f
));
5369 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5370 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5371 f
->default_face_done_p
= 1;
5373 #endif /* HAVE_WINDOW_SYSTEM */
5375 if (!FRAME_WINDOW_P (f
))
5377 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5378 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5379 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5380 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5381 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5382 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5383 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5384 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5385 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5386 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5389 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5390 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5392 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5393 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5395 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5396 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5398 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5399 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5401 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5402 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5404 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5406 /* This function is called so early that colors are not yet
5407 set in the frame parameter list. */
5408 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5410 if (CONSP (color
) && STRINGP (XCDR (color
)))
5411 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5412 else if (FRAME_WINDOW_P (f
))
5414 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5415 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5420 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5422 /* This function is called so early that colors are not yet
5423 set in the frame parameter list. */
5424 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5425 if (CONSP (color
) && STRINGP (XCDR (color
)))
5426 ASET (lface
, LFACE_BACKGROUND_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_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5435 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5436 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5438 /* Realize the face; it must be fully-specified now. */
5439 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5440 check_lface (lface
);
5441 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5442 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5444 #ifdef HAVE_WINDOW_SYSTEM
5445 #ifdef HAVE_X_WINDOWS
5446 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5448 /* This can happen when making a frame on a display that does
5449 not support the default font. */
5453 /* Otherwise, the font specified for the frame was not
5454 acceptable as a font for the default face (perhaps because
5455 auto-scaled fonts are rejected), so we must adjust the frame
5457 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5459 #endif /* HAVE_X_WINDOWS */
5460 #endif /* HAVE_WINDOW_SYSTEM */
5465 /* Realize basic faces other than the default face in face cache C.
5466 SYMBOL is the face name, ID is the face id the realized face must
5467 have. The default face must have been realized already. */
5470 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5472 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5473 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5474 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5475 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5477 /* The default face must exist and be fully specified. */
5478 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5479 check_lface_attrs (attrs
);
5480 eassert (lface_fully_specified_p (attrs
));
5482 /* If SYMBOL isn't know as a face, create it. */
5486 XSETFRAME (frame
, f
);
5487 lface
= Finternal_make_lisp_face (symbol
, frame
);
5490 /* Merge SYMBOL's face with the default face. */
5491 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5492 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5494 /* Realize the face. */
5495 realize_face (c
, attrs
, id
);
5499 /* Realize the fully-specified face with attributes ATTRS in face
5500 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5501 non-negative, it is an ID of face to remove before caching the new
5502 face. Value is a pointer to the newly created realized face. */
5504 static struct face
*
5505 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5509 /* LFACE must be fully specified. */
5510 eassert (cache
!= NULL
);
5511 check_lface_attrs (attrs
);
5513 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5515 /* Remove the former face. */
5516 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5517 uncache_face (cache
, former_face
);
5518 free_realized_face (cache
->f
, former_face
);
5519 SET_FRAME_GARBAGED (cache
->f
);
5522 if (FRAME_WINDOW_P (cache
->f
))
5523 face
= realize_x_face (cache
, attrs
);
5524 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5525 face
= realize_tty_face (cache
, attrs
);
5526 else if (FRAME_INITIAL_P (cache
->f
))
5528 /* Create a dummy face. */
5529 face
= make_realized_face (attrs
);
5534 /* Insert the new face. */
5535 cache_face (cache
, face
, lface_hash (attrs
));
5540 #ifdef HAVE_WINDOW_SYSTEM
5541 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5542 same attributes as BASE_FACE except for the font on frame F.
5543 FONT-OBJECT may be nil, in which case, realized a face of
5546 static struct face
*
5547 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5548 struct face
*base_face
)
5550 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5553 face
= xmalloc (sizeof *face
);
5558 = (! NILP (font_object
)
5559 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5560 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5562 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5563 face
->colors_copied_bitwise_p
= 1;
5564 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5567 cache_face (cache
, face
, face
->hash
);
5571 #endif /* HAVE_WINDOW_SYSTEM */
5574 /* Realize the fully-specified face with attributes ATTRS in face
5575 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5576 the new face doesn't share font with the default face, a fontname
5577 is allocated from the heap and set in `font_name' of the new face,
5578 but it is not yet loaded here. Value is a pointer to the newly
5579 created realized face. */
5581 static struct face
*
5582 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5584 struct face
*face
= NULL
;
5585 #ifdef HAVE_WINDOW_SYSTEM
5586 struct face
*default_face
;
5588 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5590 eassert (FRAME_WINDOW_P (cache
->f
));
5592 /* Allocate a new realized face. */
5593 face
= make_realized_face (attrs
);
5594 face
->ascii_face
= face
;
5598 /* Determine the font to use. Most of the time, the font will be
5599 the same as the font of the default face, so try that first. */
5600 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5602 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5604 face
->font
= default_face
->font
;
5606 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5610 /* If the face attribute ATTRS specifies a fontset, use it as
5611 the base of a new realized fontset. Otherwise, use the same
5612 base fontset as of the default face. The base determines
5613 registry and encoding of a font. It may also determine
5614 foundry and family. The other fields of font name pattern
5615 are constructed from ATTRS. */
5616 int fontset
= face_fontset (attrs
);
5618 /* If we are realizing the default face, ATTRS should specify a
5619 fontset. In other words, if FONTSET is -1, we are not
5620 realizing the default face, thus the default face should have
5621 already been realized. */
5625 fontset
= default_face
->fontset
;
5629 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5630 attrs
[LFACE_FONT_INDEX
]
5631 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5632 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5634 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5635 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5645 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5646 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5647 face
->overstrike
= 1;
5649 /* Load colors, and set remaining attributes. */
5651 load_face_colors (f
, face
, attrs
);
5654 box
= attrs
[LFACE_BOX_INDEX
];
5657 /* A simple box of line width 1 drawn in color given by
5659 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5661 face
->box
= FACE_SIMPLE_BOX
;
5662 face
->box_line_width
= 1;
5664 else if (INTEGERP (box
))
5666 /* Simple box of specified line width in foreground color of the
5668 eassert (XINT (box
) != 0);
5669 face
->box
= FACE_SIMPLE_BOX
;
5670 face
->box_line_width
= XINT (box
);
5671 face
->box_color
= face
->foreground
;
5672 face
->box_color_defaulted_p
= 1;
5674 else if (CONSP (box
))
5676 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5677 being one of `raised' or `sunken'. */
5678 face
->box
= FACE_SIMPLE_BOX
;
5679 face
->box_color
= face
->foreground
;
5680 face
->box_color_defaulted_p
= 1;
5681 face
->box_line_width
= 1;
5685 Lisp_Object keyword
, value
;
5687 keyword
= XCAR (box
);
5695 if (EQ (keyword
, QCline_width
))
5697 if (INTEGERP (value
) && XINT (value
) != 0)
5698 face
->box_line_width
= XINT (value
);
5700 else if (EQ (keyword
, QCcolor
))
5702 if (STRINGP (value
))
5704 face
->box_color
= load_color (f
, face
, value
,
5706 face
->use_box_color_for_shadows_p
= 1;
5709 else if (EQ (keyword
, QCstyle
))
5711 if (EQ (value
, Qreleased_button
))
5712 face
->box
= FACE_RAISED_BOX
;
5713 else if (EQ (value
, Qpressed_button
))
5714 face
->box
= FACE_SUNKEN_BOX
;
5719 /* Text underline, overline, strike-through. */
5721 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5722 if (EQ (underline
, Qt
))
5724 /* Use default color (same as foreground color). */
5725 face
->underline_p
= 1;
5726 face
->underline_type
= FACE_UNDER_LINE
;
5727 face
->underline_defaulted_p
= 1;
5728 face
->underline_color
= 0;
5730 else if (STRINGP (underline
))
5732 /* Use specified color. */
5733 face
->underline_p
= 1;
5734 face
->underline_type
= FACE_UNDER_LINE
;
5735 face
->underline_defaulted_p
= 0;
5736 face
->underline_color
5737 = load_color (f
, face
, underline
,
5738 LFACE_UNDERLINE_INDEX
);
5740 else if (NILP (underline
))
5742 face
->underline_p
= 0;
5743 face
->underline_defaulted_p
= 0;
5744 face
->underline_color
= 0;
5746 else if (CONSP (underline
))
5748 /* `(:color COLOR :style STYLE)'.
5749 STYLE being one of `line' or `wave'. */
5750 face
->underline_p
= 1;
5751 face
->underline_color
= 0;
5752 face
->underline_defaulted_p
= 1;
5753 face
->underline_type
= FACE_UNDER_LINE
;
5755 while (CONSP (underline
))
5757 Lisp_Object keyword
, value
;
5759 keyword
= XCAR (underline
);
5760 underline
= XCDR (underline
);
5762 if (!CONSP (underline
))
5764 value
= XCAR (underline
);
5765 underline
= XCDR (underline
);
5767 if (EQ (keyword
, QCcolor
))
5769 if (EQ (value
, Qforeground_color
))
5771 face
->underline_defaulted_p
= 1;
5772 face
->underline_color
= 0;
5774 else if (STRINGP (value
))
5776 face
->underline_defaulted_p
= 0;
5777 face
->underline_color
= load_color (f
, face
, value
,
5778 LFACE_UNDERLINE_INDEX
);
5781 else if (EQ (keyword
, QCstyle
))
5783 if (EQ (value
, Qline
))
5784 face
->underline_type
= FACE_UNDER_LINE
;
5785 else if (EQ (value
, Qwave
))
5786 face
->underline_type
= FACE_UNDER_WAVE
;
5791 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5792 if (STRINGP (overline
))
5794 face
->overline_color
5795 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5796 LFACE_OVERLINE_INDEX
);
5797 face
->overline_p
= 1;
5799 else if (EQ (overline
, Qt
))
5801 face
->overline_color
= face
->foreground
;
5802 face
->overline_color_defaulted_p
= 1;
5803 face
->overline_p
= 1;
5806 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5807 if (STRINGP (strike_through
))
5809 face
->strike_through_color
5810 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5811 LFACE_STRIKE_THROUGH_INDEX
);
5812 face
->strike_through_p
= 1;
5814 else if (EQ (strike_through
, Qt
))
5816 face
->strike_through_color
= face
->foreground
;
5817 face
->strike_through_color_defaulted_p
= 1;
5818 face
->strike_through_p
= 1;
5821 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5822 if (!NILP (stipple
))
5823 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5824 #endif /* HAVE_WINDOW_SYSTEM */
5830 /* Map a specified color of face FACE on frame F to a tty color index.
5831 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5832 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5833 default foreground/background colors. */
5836 map_tty_color (struct frame
*f
, struct face
*face
,
5837 enum lface_attribute_index idx
, int *defaulted
)
5839 Lisp_Object frame
, color
, def
;
5840 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5841 unsigned long default_pixel
=
5842 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5843 unsigned long pixel
= default_pixel
;
5845 unsigned long default_other_pixel
=
5846 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5849 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5851 XSETFRAME (frame
, f
);
5852 color
= face
->lface
[idx
];
5856 && CONSP (Vtty_defined_color_alist
)
5857 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5860 /* Associations in tty-defined-color-alist are of the form
5861 (NAME INDEX R G B). We need the INDEX part. */
5862 pixel
= XINT (XCAR (XCDR (def
)));
5865 if (pixel
== default_pixel
&& STRINGP (color
))
5867 pixel
= load_color (f
, face
, color
, idx
);
5870 /* If the foreground of the default face is the default color,
5871 use the foreground color defined by the frame. */
5872 if (FRAME_MSDOS_P (f
))
5874 if (pixel
== default_pixel
5875 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5878 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5880 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5881 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5884 else if (pixel
== default_other_pixel
)
5887 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5889 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5890 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5898 face
->foreground
= pixel
;
5900 face
->background
= pixel
;
5904 /* Realize the fully-specified face with attributes ATTRS in face
5905 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5906 Value is a pointer to the newly created realized face. */
5908 static struct face
*
5909 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5913 int face_colors_defaulted
= 0;
5914 struct frame
*f
= cache
->f
;
5916 /* Frame must be a termcap frame. */
5917 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5919 /* Allocate a new realized face. */
5920 face
= make_realized_face (attrs
);
5922 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5925 /* Map face attributes to TTY appearances. */
5926 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5927 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5929 face
->tty_bold_p
= 1;
5931 face
->tty_italic_p
= 1;
5932 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5933 face
->tty_underline_p
= 1;
5934 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5935 face
->tty_reverse_p
= 1;
5937 /* Map color names to color indices. */
5938 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5939 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5941 /* Swap colors if face is inverse-video. If the colors are taken
5942 from the frame colors, they are already inverted, since the
5943 frame-creation function calls x-handle-reverse-video. */
5944 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5946 unsigned long tem
= face
->foreground
;
5947 face
->foreground
= face
->background
;
5948 face
->background
= tem
;
5951 if (tty_suppress_bold_inverse_default_colors_p
5953 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5954 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5955 face
->tty_bold_p
= 0;
5961 DEFUN ("tty-suppress-bold-inverse-default-colors",
5962 Ftty_suppress_bold_inverse_default_colors
,
5963 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5964 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5965 SUPPRESS non-nil means suppress it.
5966 This affects bold faces on TTYs whose foreground is the default background
5967 color of the display and whose background is the default foreground color.
5968 For such faces, the bold face attribute is ignored if this variable
5970 (Lisp_Object suppress
)
5972 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5973 ++face_change_count
;
5979 /***********************************************************************
5981 ***********************************************************************/
5983 /* Return the ID of the face to use to display character CH with face
5984 property PROP on frame F in current_buffer. */
5987 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5991 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5996 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5997 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6001 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6002 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6003 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6004 merge_face_ref (f
, prop
, attrs
, 1, 0);
6005 face_id
= lookup_face (f
, attrs
);
6011 /* Return the face ID associated with buffer position POS for
6012 displaying ASCII characters. Return in *ENDPTR the position at
6013 which a different face is needed, as far as text properties and
6014 overlays are concerned. W is a window displaying current_buffer.
6016 REGION_BEG, REGION_END delimit the region, so it can be
6019 LIMIT is a position not to scan beyond. That is to limit the time
6020 this function can take.
6022 If MOUSE is non-zero, use the character's mouse-face, not its face.
6024 BASE_FACE_ID, if non-negative, specifies a base face id to use
6025 instead of DEFAULT_FACE_ID.
6027 The face returned is suitable for displaying ASCII characters. */
6030 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
6031 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6032 ptrdiff_t *endptr
, ptrdiff_t limit
,
6033 int mouse
, int base_face_id
)
6035 struct frame
*f
= XFRAME (w
->frame
);
6036 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6037 Lisp_Object prop
, position
;
6038 ptrdiff_t i
, noverlays
;
6039 Lisp_Object
*overlay_vec
;
6041 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6042 Lisp_Object limit1
, end
;
6043 struct face
*default_face
;
6045 /* W must display the current buffer. We could write this function
6046 to use the frame and buffer of W, but right now it doesn't. */
6047 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6049 XSETFASTINT (position
, pos
);
6052 if (pos
< region_beg
&& region_beg
< endpos
)
6053 endpos
= region_beg
;
6055 /* Get the `face' or `mouse_face' text property at POS, and
6056 determine the next position at which the property changes. */
6057 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6058 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6059 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6061 endpos
= XINT (end
);
6063 /* Look at properties from overlays. */
6065 ptrdiff_t next_overlay
;
6067 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6068 if (next_overlay
< endpos
)
6069 endpos
= next_overlay
;
6077 if (base_face_id
>= 0)
6078 face_id
= base_face_id
;
6079 else if (NILP (Vface_remapping_alist
))
6080 face_id
= DEFAULT_FACE_ID
;
6082 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
6084 default_face
= FACE_FROM_ID (f
, face_id
);
6087 /* Optimize common cases where we can use the default face. */
6090 && !(pos
>= region_beg
&& pos
< region_end
))
6091 return default_face
->id
;
6093 /* Begin with attributes from the default face. */
6094 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6096 /* Merge in attributes specified via text properties. */
6098 merge_face_ref (f
, prop
, attrs
, 1, 0);
6100 /* Now merge the overlay data. */
6101 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6102 for (i
= 0; i
< noverlays
; i
++)
6107 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6109 merge_face_ref (f
, prop
, attrs
, 1, 0);
6111 oend
= OVERLAY_END (overlay_vec
[i
]);
6112 oendpos
= OVERLAY_POSITION (oend
);
6113 if (oendpos
< endpos
)
6117 /* If in the region, merge in the region face. */
6118 if (pos
>= region_beg
&& pos
< region_end
)
6120 merge_named_face (f
, Qregion
, attrs
, 0);
6122 if (region_end
< endpos
)
6123 endpos
= region_end
;
6128 /* Look up a realized face with the given face attributes,
6129 or realize a new one for ASCII characters. */
6130 return lookup_face (f
, attrs
);
6133 /* Return the face ID at buffer position POS for displaying ASCII
6134 characters associated with overlay strings for overlay OVERLAY.
6136 Like face_at_buffer_position except for OVERLAY. Currently it
6137 simply disregards the `face' properties of all overlays. */
6140 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6141 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6142 ptrdiff_t *endptr
, ptrdiff_t limit
,
6143 int mouse
, Lisp_Object overlay
)
6145 struct frame
*f
= XFRAME (w
->frame
);
6146 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6147 Lisp_Object prop
, position
;
6149 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6150 Lisp_Object limit1
, end
;
6151 struct face
*default_face
;
6153 /* W must display the current buffer. We could write this function
6154 to use the frame and buffer of W, but right now it doesn't. */
6155 /* eassert (XBUFFER (w->buffer) == current_buffer); */
6157 XSETFASTINT (position
, pos
);
6160 if (pos
< region_beg
&& region_beg
< endpos
)
6161 endpos
= region_beg
;
6163 /* Get the `face' or `mouse_face' text property at POS, and
6164 determine the next position at which the property changes. */
6165 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6166 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6167 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6169 endpos
= XINT (end
);
6173 /* Optimize common case where we can use the default face. */
6175 && !(pos
>= region_beg
&& pos
< region_end
)
6176 && NILP (Vface_remapping_alist
))
6177 return DEFAULT_FACE_ID
;
6179 /* Begin with attributes from the default face. */
6180 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6181 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6183 /* Merge in attributes specified via text properties. */
6185 merge_face_ref (f
, prop
, attrs
, 1, 0);
6187 /* If in the region, merge in the region face. */
6188 if (pos
>= region_beg
&& pos
< region_end
)
6190 merge_named_face (f
, Qregion
, attrs
, 0);
6192 if (region_end
< endpos
)
6193 endpos
= region_end
;
6198 /* Look up a realized face with the given face attributes,
6199 or realize a new one for ASCII characters. */
6200 return lookup_face (f
, attrs
);
6204 /* Compute the face at character position POS in Lisp string STRING on
6205 window W, for ASCII characters.
6207 If STRING is an overlay string, it comes from position BUFPOS in
6208 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6209 not an overlay string. W must display the current buffer.
6210 REGION_BEG and REGION_END give the start and end positions of the
6211 region; both are -1 if no region is visible.
6213 BASE_FACE_ID is the id of a face to merge with. For strings coming
6214 from overlays or the `display' property it is the face at BUFPOS.
6216 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6218 Set *ENDPTR to the next position where to check for faces in
6219 STRING; -1 if the face is constant from POS to the end of the
6222 Value is the id of the face to use. The face returned is suitable
6223 for displaying ASCII characters. */
6226 face_at_string_position (struct window
*w
, Lisp_Object string
,
6227 ptrdiff_t pos
, ptrdiff_t bufpos
,
6228 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6229 ptrdiff_t *endptr
, enum face_id base_face_id
,
6232 Lisp_Object prop
, position
, end
, limit
;
6233 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6234 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6235 struct face
*base_face
;
6236 int multibyte_p
= STRING_MULTIBYTE (string
);
6237 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6239 /* Get the value of the face property at the current position within
6240 STRING. Value is nil if there is no face property. */
6241 XSETFASTINT (position
, pos
);
6242 prop
= Fget_text_property (position
, prop_name
, string
);
6244 /* Get the next position at which to check for faces. Value of end
6245 is nil if face is constant all the way to the end of the string.
6246 Otherwise it is a string position where to check faces next.
6247 Limit is the maximum position up to which to check for property
6248 changes in Fnext_single_property_change. Strings are usually
6249 short, so set the limit to the end of the string. */
6250 XSETFASTINT (limit
, SCHARS (string
));
6251 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6253 *endptr
= XFASTINT (end
);
6257 base_face
= FACE_FROM_ID (f
, base_face_id
);
6258 eassert (base_face
);
6260 /* Optimize the default case that there is no face property and we
6261 are not in the region. */
6263 && (base_face_id
!= DEFAULT_FACE_ID
6264 /* BUFPOS <= 0 means STRING is not an overlay string, so
6265 that the region doesn't have to be taken into account. */
6267 || bufpos
< region_beg
6268 || bufpos
>= region_end
)
6270 /* We can't realize faces for different charsets differently
6271 if we don't have fonts, so we can stop here if not working
6272 on a window-system frame. */
6273 || !FRAME_WINDOW_P (f
)
6274 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6275 return base_face
->id
;
6277 /* Begin with attributes from the base face. */
6278 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6280 /* Merge in attributes specified via text properties. */
6282 merge_face_ref (f
, prop
, attrs
, 1, 0);
6284 /* If in the region, merge in the region face. */
6286 && bufpos
>= region_beg
6287 && bufpos
< region_end
)
6288 merge_named_face (f
, Qregion
, attrs
, 0);
6290 /* Look up a realized face with the given face attributes,
6291 or realize a new one for ASCII characters. */
6292 return lookup_face (f
, attrs
);
6296 /* Merge a face into a realized face.
6298 F is frame where faces are (to be) realized.
6300 FACE_NAME is named face to merge.
6302 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6304 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6306 BASE_FACE_ID is realized face to merge into.
6312 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6315 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6316 struct face
*base_face
;
6318 base_face
= FACE_FROM_ID (f
, base_face_id
);
6320 return base_face_id
;
6322 if (EQ (face_name
, Qt
))
6324 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6325 return base_face_id
;
6326 face_name
= lface_id_to_name
[face_id
];
6327 /* When called during make-frame, lookup_derived_face may fail
6328 if the faces are uninitialized. Don't signal an error. */
6329 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6330 return (face_id
>= 0 ? face_id
: base_face_id
);
6333 /* Begin with attributes from the base face. */
6334 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6336 if (!NILP (face_name
))
6338 if (!merge_named_face (f
, face_name
, attrs
, 0))
6339 return base_face_id
;
6345 return base_face_id
;
6346 face
= FACE_FROM_ID (f
, face_id
);
6348 return base_face_id
;
6349 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6352 /* Look up a realized face with the given face attributes,
6353 or realize a new one for ASCII characters. */
6354 return lookup_face (f
, attrs
);
6359 #ifndef HAVE_X_WINDOWS
6360 DEFUN ("x-load-color-file", Fx_load_color_file
,
6361 Sx_load_color_file
, 1, 1, 0,
6362 doc
: /* Create an alist of color entries from an external file.
6364 The file should define one named RGB color per line like so:
6366 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6367 (Lisp_Object filename
)
6370 Lisp_Object cmap
= Qnil
;
6371 Lisp_Object abspath
;
6373 CHECK_STRING (filename
);
6374 abspath
= Fexpand_file_name (filename
, Qnil
);
6376 fp
= fopen (SSDATA (abspath
), "rt");
6380 int red
, green
, blue
;
6385 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6386 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6388 char *name
= buf
+ num
;
6389 num
= strlen (name
) - 1;
6390 if (num
>= 0 && name
[num
] == '\n')
6392 cmap
= Fcons (Fcons (build_string (name
),
6394 make_number (RGB (red
, green
, blue
))),
6396 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6411 /***********************************************************************
6413 ***********************************************************************/
6417 /* Print the contents of the realized face FACE to stderr. */
6420 dump_realized_face (struct face
*face
)
6422 fprintf (stderr
, "ID: %d\n", face
->id
);
6423 #ifdef HAVE_X_WINDOWS
6424 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6426 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6428 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6429 fprintf (stderr
, "background: 0x%lx (%s)\n",
6431 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6433 fprintf (stderr
, "font_name: %s (%s)\n",
6434 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6435 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6436 #ifdef HAVE_X_WINDOWS
6437 fprintf (stderr
, "font = %p\n", face
->font
);
6439 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6440 fprintf (stderr
, "underline: %d (%s)\n",
6442 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6443 fprintf (stderr
, "hash: %d\n", face
->hash
);
6447 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6454 fprintf (stderr
, "font selection order: ");
6455 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6456 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6457 fprintf (stderr
, "\n");
6459 fprintf (stderr
, "alternative fonts: ");
6460 debug_print (Vface_alternative_font_family_alist
);
6461 fprintf (stderr
, "\n");
6463 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6464 Fdump_face (make_number (i
));
6470 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6472 error ("Not a valid face");
6473 dump_realized_face (face
);
6480 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6481 0, 0, 0, doc
: /* */)
6484 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6485 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6486 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6490 #endif /* GLYPH_DEBUG */
6494 /***********************************************************************
6496 ***********************************************************************/
6499 syms_of_xfaces (void)
6501 DEFSYM (Qface
, "face");
6502 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6503 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6504 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6506 /* Lisp face attribute keywords. */
6507 DEFSYM (QCfamily
, ":family");
6508 DEFSYM (QCheight
, ":height");
6509 DEFSYM (QCweight
, ":weight");
6510 DEFSYM (QCslant
, ":slant");
6511 DEFSYM (QCunderline
, ":underline");
6512 DEFSYM (QCinverse_video
, ":inverse-video");
6513 DEFSYM (QCreverse_video
, ":reverse-video");
6514 DEFSYM (QCforeground
, ":foreground");
6515 DEFSYM (QCbackground
, ":background");
6516 DEFSYM (QCstipple
, ":stipple");
6517 DEFSYM (QCwidth
, ":width");
6518 DEFSYM (QCfont
, ":font");
6519 DEFSYM (QCfontset
, ":fontset");
6520 DEFSYM (QCbold
, ":bold");
6521 DEFSYM (QCitalic
, ":italic");
6522 DEFSYM (QCoverline
, ":overline");
6523 DEFSYM (QCstrike_through
, ":strike-through");
6524 DEFSYM (QCbox
, ":box");
6525 DEFSYM (QCinherit
, ":inherit");
6527 /* Symbols used for Lisp face attribute values. */
6528 DEFSYM (QCcolor
, ":color");
6529 DEFSYM (QCline_width
, ":line-width");
6530 DEFSYM (QCstyle
, ":style");
6531 DEFSYM (Qline
, "line");
6532 DEFSYM (Qwave
, "wave");
6533 DEFSYM (Qreleased_button
, "released-button");
6534 DEFSYM (Qpressed_button
, "pressed-button");
6535 DEFSYM (Qnormal
, "normal");
6536 DEFSYM (Qultra_light
, "ultra-light");
6537 DEFSYM (Qextra_light
, "extra-light");
6538 DEFSYM (Qlight
, "light");
6539 DEFSYM (Qsemi_light
, "semi-light");
6540 DEFSYM (Qsemi_bold
, "semi-bold");
6541 DEFSYM (Qbold
, "bold");
6542 DEFSYM (Qextra_bold
, "extra-bold");
6543 DEFSYM (Qultra_bold
, "ultra-bold");
6544 DEFSYM (Qoblique
, "oblique");
6545 DEFSYM (Qitalic
, "italic");
6546 DEFSYM (Qreverse_oblique
, "reverse-oblique");
6547 DEFSYM (Qreverse_italic
, "reverse-italic");
6548 DEFSYM (Qultra_condensed
, "ultra-condensed");
6549 DEFSYM (Qextra_condensed
, "extra-condensed");
6550 DEFSYM (Qcondensed
, "condensed");
6551 DEFSYM (Qsemi_condensed
, "semi-condensed");
6552 DEFSYM (Qsemi_expanded
, "semi-expanded");
6553 DEFSYM (Qexpanded
, "expanded");
6554 DEFSYM (Qextra_expanded
, "extra-expanded");
6555 DEFSYM (Qultra_expanded
, "ultra-expanded");
6556 DEFSYM (Qbackground_color
, "background-color");
6557 DEFSYM (Qforeground_color
, "foreground-color");
6558 DEFSYM (Qunspecified
, "unspecified");
6559 DEFSYM (QCignore_defface
, ":ignore-defface");
6561 DEFSYM (Qface_alias
, "face-alias");
6562 DEFSYM (Qdefault
, "default");
6563 DEFSYM (Qtool_bar
, "tool-bar");
6564 DEFSYM (Qregion
, "region");
6565 DEFSYM (Qfringe
, "fringe");
6566 DEFSYM (Qheader_line
, "header-line");
6567 DEFSYM (Qscroll_bar
, "scroll-bar");
6568 DEFSYM (Qmenu
, "menu");
6569 DEFSYM (Qcursor
, "cursor");
6570 DEFSYM (Qborder
, "border");
6571 DEFSYM (Qmouse
, "mouse");
6572 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6573 DEFSYM (Qvertical_border
, "vertical-border");
6574 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6575 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6576 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6577 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6578 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6580 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6581 staticpro (&Vparam_value_alist
);
6582 Vface_alternative_font_family_alist
= Qnil
;
6583 staticpro (&Vface_alternative_font_family_alist
);
6584 Vface_alternative_font_registry_alist
= Qnil
;
6585 staticpro (&Vface_alternative_font_registry_alist
);
6587 defsubr (&Sinternal_make_lisp_face
);
6588 defsubr (&Sinternal_lisp_face_p
);
6589 defsubr (&Sinternal_set_lisp_face_attribute
);
6590 #ifdef HAVE_WINDOW_SYSTEM
6591 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6593 defsubr (&Scolor_gray_p
);
6594 defsubr (&Scolor_supported_p
);
6595 #ifndef HAVE_X_WINDOWS
6596 defsubr (&Sx_load_color_file
);
6598 defsubr (&Sface_attribute_relative_p
);
6599 defsubr (&Smerge_face_attribute
);
6600 defsubr (&Sinternal_get_lisp_face_attribute
);
6601 defsubr (&Sinternal_lisp_face_attribute_values
);
6602 defsubr (&Sinternal_lisp_face_equal_p
);
6603 defsubr (&Sinternal_lisp_face_empty_p
);
6604 defsubr (&Sinternal_copy_lisp_face
);
6605 defsubr (&Sinternal_merge_in_global_face
);
6606 defsubr (&Sface_font
);
6607 defsubr (&Sframe_face_alist
);
6608 defsubr (&Sdisplay_supports_face_attributes_p
);
6609 defsubr (&Scolor_distance
);
6610 defsubr (&Sinternal_set_font_selection_order
);
6611 defsubr (&Sinternal_set_alternative_font_family_alist
);
6612 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6613 defsubr (&Sface_attributes_as_vector
);
6615 defsubr (&Sdump_face
);
6616 defsubr (&Sshow_face_resources
);
6617 #endif /* GLYPH_DEBUG */
6618 defsubr (&Sclear_face_cache
);
6619 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6621 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6622 defsubr (&Sdump_colors
);
6625 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6626 doc
: /* Limit for font matching.
6627 If an integer > 0, font matching functions won't load more than
6628 that number of fonts when searching for a matching font. */);
6629 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6631 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6632 doc
: /* List of global face definitions (for internal use only.) */);
6633 Vface_new_frame_defaults
= Qnil
;
6635 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6636 doc
: /* Default stipple pattern used on monochrome displays.
6637 This stipple pattern is used on monochrome displays
6638 instead of shades of gray for a face background color.
6639 See `set-face-stipple' for possible values for this variable. */);
6640 Vface_default_stipple
= build_pure_c_string ("gray3");
6642 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6643 doc
: /* An alist of defined terminal colors and their RGB values.
6644 See the docstring of `tty-color-alist' for the details. */);
6645 Vtty_defined_color_alist
= Qnil
;
6647 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6648 doc
: /* Allowed scalable fonts.
6649 A value of nil means don't allow any scalable fonts.
6650 A value of t means allow any scalable font.
6651 Otherwise, value must be a list of regular expressions. A font may be
6652 scaled if its name matches a regular expression in the list.
6653 Note that if value is nil, a scalable font might still be used, if no
6654 other font of the appropriate family and registry is available. */);
6655 Vscalable_fonts_allowed
= Qnil
;
6657 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6658 doc
: /* List of ignored fonts.
6659 Each element is a regular expression that matches names of fonts to
6661 Vface_ignored_fonts
= Qnil
;
6663 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6664 doc
: /* Alist of face remappings.
6665 Each element is of the form:
6667 (FACE . REPLACEMENT),
6669 which causes display of the face FACE to use REPLACEMENT instead.
6670 REPLACEMENT is a face specification, i.e. one of the following:
6673 (2) a property list of attribute/value pairs, or
6674 (3) a list in which each element has the form of (1) or (2).
6676 List values for REPLACEMENT are merged to form the final face
6677 specification, with earlier entries taking precedence, in the same as
6678 as in the `face' text property.
6680 Face-name remapping cycles are suppressed; recursive references use
6681 the underlying face instead of the remapped face. So a remapping of
6684 (FACE EXTRA-FACE... FACE)
6688 (FACE (FACE-ATTR VAL ...) FACE)
6690 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6691 existing definition of FACE. Note that this isn't necessary for the
6692 default face, since every face inherits from the default face.
6694 If this variable is made buffer-local, the face remapping takes effect
6695 only in that buffer. For instance, the mode my-mode could define a
6696 face `my-mode-default', and then in the mode setup function, do:
6698 (set (make-local-variable 'face-remapping-alist)
6699 '((default my-mode-default)))).
6701 Because Emacs normally only redraws screen areas when the underlying
6702 buffer contents change, you may need to call `redraw-display' after
6703 changing this variable for it to take effect. */);
6704 Vface_remapping_alist
= Qnil
;
6706 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6707 doc
: /* Alist of fonts vs the rescaling factors.
6708 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6709 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6710 RESCALE-RATIO is a floating point number to specify how much larger
6711 \(or smaller) font we should use. For instance, if a face requests
6712 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6713 Vface_font_rescale_alist
= Qnil
;
6715 #ifdef HAVE_WINDOW_SYSTEM
6716 defsubr (&Sbitmap_spec_p
);
6717 defsubr (&Sx_list_fonts
);
6718 defsubr (&Sinternal_face_x_get_resource
);
6719 defsubr (&Sx_family_fonts
);