1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2011 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
30 2. Font foundary name.
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 correspoinding 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 FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
237 #define check_x check_w32
238 #define GCGraphicsExposures 0
239 #endif /* WINDOWSNT */
243 #undef FRAME_X_DISPLAY_INFO
244 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
245 #define x_display_info ns_display_info
246 #define FRAME_X_FONT_TABLE FRAME_NS_FONT_TABLE
247 #define check_x check_ns
248 #define GCGraphicsExposures 0
252 #include "dispextern.h"
253 #include "blockinput.h"
255 #include "intervals.h"
256 #include "termchar.h"
259 #ifdef HAVE_WINDOW_SYSTEM
261 #endif /* HAVE_WINDOW_SYSTEM */
263 #ifdef HAVE_X_WINDOWS
265 /* Compensate for a bug in Xos.h on some systems, on which it requires
266 time.h. On some such systems, Xos.h tries to redefine struct
267 timeval and struct timezone if USG is #defined while it is
270 #ifdef XOS_NEEDS_TIME_H
276 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
278 #else /* not XOS_NEEDS_TIME_H */
280 #endif /* not XOS_NEEDS_TIME_H */
282 #endif /* HAVE_X_WINDOWS */
286 /* Number of pt per inch (from the TeXbook). */
288 #define PT_PER_INCH 72.27
290 /* Non-zero if face attribute ATTR is unspecified. */
292 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
294 /* Non-zero if face attribute ATTR is `ignore-defface'. */
296 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
298 /* Value is the number of elements of VECTOR. */
300 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
302 /* Size of hash table of realized faces in face caches (should be a
305 #define FACE_CACHE_BUCKETS_SIZE 1001
307 /* Keyword symbols used for face attribute names. */
309 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
310 static Lisp_Object QCunderline
;
311 static Lisp_Object QCinverse_video
, QCstipple
;
312 Lisp_Object QCforeground
, QCbackground
;
314 static Lisp_Object QCfont
, QCbold
, QCitalic
;
315 static Lisp_Object QCreverse_video
;
316 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
317 static Lisp_Object QCfontset
;
319 /* Symbols used for attribute values. */
323 static Lisp_Object Qultra_light
, Qextra_light
, Qlight
;
324 static Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
325 static Lisp_Object Qoblique
, Qreverse_oblique
, Qreverse_italic
;
327 static Lisp_Object Qultra_condensed
, Qextra_condensed
;
328 Lisp_Object Qcondensed
;
329 static Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qextra_expanded
;
330 Lisp_Object Qexpanded
;
331 static Lisp_Object Qultra_expanded
;
332 static Lisp_Object Qreleased_button
, Qpressed_button
;
333 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
334 Lisp_Object Qunspecified
; /* used in dosfns.c */
335 static Lisp_Object Qignore_defface
;
337 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
339 /* The name of the function to call when the background of the frame
340 has changed, frame_set_background_mode. */
342 Lisp_Object Qframe_set_background_mode
;
344 /* Names of basic faces. */
346 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
347 static Lisp_Object Qregion
;
348 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
349 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
350 Lisp_Object Qmode_line_inactive
;
351 static Lisp_Object Qvertical_border
;
353 /* The symbol `face-alias'. A symbols having that property is an
354 alias for another face. Value of the property is the name of
357 static Lisp_Object Qface_alias
;
359 /* Alist of alternative font families. Each element is of the form
360 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
361 try FAMILY1, then FAMILY2, ... */
363 Lisp_Object Vface_alternative_font_family_alist
;
365 /* Alist of alternative font registries. Each element is of the form
366 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
367 loaded, try REGISTRY1, then REGISTRY2, ... */
369 Lisp_Object Vface_alternative_font_registry_alist
;
371 /* Allowed scalable fonts. A value of nil means don't allow any
372 scalable fonts. A value of t means allow the use of any scalable
373 font. Otherwise, value must be a list of regular expressions. A
374 font may be scaled if its name matches a regular expression in the
377 static Lisp_Object Qscalable_fonts_allowed
;
379 #define DEFAULT_FONT_LIST_LIMIT 100
381 /* The symbols `foreground-color' and `background-color' which can be
382 used as part of a `face' property. This is for compatibility with
385 Lisp_Object Qforeground_color
, Qbackground_color
;
387 /* The symbols `face' and `mouse-face' used as text properties. */
391 /* Property for basic faces which other faces cannot inherit. */
393 static Lisp_Object Qface_no_inherit
;
395 /* Error symbol for wrong_type_argument in load_pixmap. */
397 static Lisp_Object Qbitmap_spec_p
;
399 /* The next ID to assign to Lisp faces. */
401 static int next_lface_id
;
403 /* A vector mapping Lisp face Id's to face names. */
405 static Lisp_Object
*lface_id_to_name
;
406 static int lface_id_to_name_size
;
408 /* TTY color-related functions (defined in tty-colors.el). */
410 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
412 /* The name of the function used to compute colors on TTYs. */
414 static Lisp_Object Qtty_color_alist
;
416 /* Counter for calls to clear_face_cache. If this counter reaches
417 CLEAR_FONT_TABLE_COUNT, and a frame has more than
418 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
420 static int clear_font_table_count
;
421 #define CLEAR_FONT_TABLE_COUNT 100
422 #define CLEAR_FONT_TABLE_NFONTS 10
424 /* Non-zero means face attributes have been changed since the last
425 redisplay. Used in redisplay_internal. */
427 int face_change_count
;
429 /* Non-zero means don't display bold text if a face's foreground
430 and background colors are the inverse of the default colors of the
431 display. This is a kluge to suppress `bold black' foreground text
432 which is hard to read on an LCD monitor. */
434 static int tty_suppress_bold_inverse_default_colors_p
;
436 /* A list of the form `((x . y))' used to avoid consing in
437 Finternal_set_lisp_face_attribute. */
439 static Lisp_Object Vparam_value_alist
;
441 /* The total number of colors currently allocated. */
444 static int ncolors_allocated
;
445 static int npixmaps_allocated
;
449 /* Non-zero means the definition of the `menu' face for new frames has
452 static int menu_face_changed_default
;
455 /* Function prototypes. */
458 struct named_merge_point
;
460 static void map_tty_color (struct frame
*, struct face
*,
461 enum lface_attribute_index
, int *);
462 static Lisp_Object
resolve_face_name (Lisp_Object
, int);
463 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
464 static int get_lface_attributes (struct frame
*, Lisp_Object
, Lisp_Object
*,
465 int, struct named_merge_point
*);
466 static ptrdiff_t load_pixmap (struct frame
*, Lisp_Object
,
467 unsigned *, unsigned *);
468 static struct frame
*frame_or_selected_frame (Lisp_Object
, int);
469 static void load_face_colors (struct frame
*, struct face
*, Lisp_Object
*);
470 static void free_face_colors (struct frame
*, struct face
*);
471 static int face_color_gray_p (struct frame
*, const char *);
472 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
474 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
476 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
477 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
478 static int realize_basic_faces (struct frame
*);
479 static int realize_default_face (struct frame
*);
480 static void realize_named_face (struct frame
*, Lisp_Object
, int);
481 static int lface_fully_specified_p (Lisp_Object
*);
482 static int lface_equal_p (Lisp_Object
*, Lisp_Object
*);
483 static unsigned hash_string_case_insensitive (Lisp_Object
);
484 static unsigned lface_hash (Lisp_Object
*);
485 static int lface_same_font_attributes_p (Lisp_Object
*, Lisp_Object
*);
486 static struct face_cache
*make_face_cache (struct frame
*);
487 static void clear_face_gcs (struct face_cache
*);
488 static void free_face_cache (struct face_cache
*);
489 static int face_fontset (Lisp_Object
*);
490 static void merge_face_vectors (struct frame
*, Lisp_Object
*, Lisp_Object
*,
491 struct named_merge_point
*);
492 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
493 int, struct named_merge_point
*);
494 static int set_lface_from_font (struct frame
*, Lisp_Object
, Lisp_Object
,
496 static Lisp_Object
lface_from_face_name (struct frame
*, Lisp_Object
, int);
497 static struct face
*make_realized_face (Lisp_Object
*);
498 static void cache_face (struct face_cache
*, struct face
*, unsigned);
499 static void uncache_face (struct face_cache
*, struct face
*);
501 #ifdef HAVE_WINDOW_SYSTEM
503 static GC
x_create_gc (struct frame
*, unsigned long, XGCValues
*);
504 static void x_free_gc (struct frame
*, GC
);
507 static void x_update_menu_appearance (struct frame
*);
509 extern void free_frame_menubar (struct frame
*);
510 #endif /* USE_X_TOOLKIT */
512 #endif /* HAVE_WINDOW_SYSTEM */
515 /***********************************************************************
517 ***********************************************************************/
519 #ifdef HAVE_X_WINDOWS
521 #ifdef DEBUG_X_COLORS
523 /* The following is a poor mans infrastructure for debugging X color
524 allocation problems on displays with PseudoColor-8. Some X servers
525 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
526 color reference counts completely so that they don't signal an
527 error when a color is freed whose reference count is already 0.
528 Other X servers do. To help me debug this, the following code
529 implements a simple reference counting schema of its own, for a
530 single display/screen. --gerd. */
532 /* Reference counts for pixel colors. */
534 int color_count
[256];
536 /* Register color PIXEL as allocated. */
539 register_color (unsigned long pixel
)
541 xassert (pixel
< 256);
542 ++color_count
[pixel
];
546 /* Register color PIXEL as deallocated. */
549 unregister_color (unsigned long pixel
)
551 xassert (pixel
< 256);
552 if (color_count
[pixel
] > 0)
553 --color_count
[pixel
];
559 /* Register N colors from PIXELS as deallocated. */
562 unregister_colors (unsigned long *pixels
, int n
)
565 for (i
= 0; i
< n
; ++i
)
566 unregister_color (pixels
[i
]);
570 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
571 doc
: /* Dump currently allocated colors to stderr. */)
576 fputc ('\n', stderr
);
578 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
581 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
584 fputc ('\n', stderr
);
586 fputc ('\t', stderr
);
590 fputc ('\n', stderr
);
594 #endif /* DEBUG_X_COLORS */
597 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
598 color values. Interrupt input must be blocked when this function
602 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
604 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
606 /* If display has an immutable color map, freeing colors is not
607 necessary and some servers don't allow it. So don't do it. */
608 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
610 #ifdef DEBUG_X_COLORS
611 unregister_colors (pixels
, npixels
);
613 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
621 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
622 color values. Interrupt input must be blocked when this function
626 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
, 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 (xassert (--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 (xassert (--ngcs
>= 0));
694 #endif /* WINDOWSNT */
697 /* NS emulation of GCs */
700 x_create_gc (struct frame
*f
,
704 GC gc
= xmalloc (sizeof (*gc
));
706 memcpy (gc
, xgcv
, sizeof (XGCValues
));
711 x_free_gc (struct frame
*f
, GC gc
)
717 /* Like strcasecmp/stricmp. Used to compare parts of font names which
721 xstrcasecmp (const char *s1
, const char *s2
)
725 unsigned char b1
= *s1
;
726 unsigned char b2
= *s2
;
727 unsigned char c1
= tolower (b1
);
728 unsigned char c2
= tolower (b2
);
730 return c1
< c2
? -1 : 1;
735 return *s2
== 0 ? 0 : -1;
740 /* If FRAME is nil, return a pointer to the selected frame.
741 Otherwise, check that FRAME is a live frame, and return a pointer
742 to it. NPARAM is the parameter number of FRAME, for
743 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
744 Lisp function definitions. */
746 static inline struct frame
*
747 frame_or_selected_frame (Lisp_Object frame
, int nparam
)
750 frame
= selected_frame
;
752 CHECK_LIVE_FRAME (frame
);
753 return XFRAME (frame
);
757 /***********************************************************************
759 ***********************************************************************/
761 /* Initialize face cache and basic faces for frame F. */
764 init_frame_faces (struct frame
*f
)
766 /* Make a face cache, if F doesn't have one. */
767 if (FRAME_FACE_CACHE (f
) == NULL
)
768 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
770 #ifdef HAVE_WINDOW_SYSTEM
771 /* Make the image cache. */
772 if (FRAME_WINDOW_P (f
))
774 /* We initialize the image cache when creating the first frame
775 on a terminal, and not during terminal creation. This way,
776 `x-open-connection' on a tty won't create an image cache. */
777 if (FRAME_IMAGE_CACHE (f
) == NULL
)
778 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
779 ++FRAME_IMAGE_CACHE (f
)->refcount
;
781 #endif /* HAVE_WINDOW_SYSTEM */
783 /* Realize basic faces. Must have enough information in frame
784 parameters to realize basic faces at this point. */
785 #ifdef HAVE_X_WINDOWS
786 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
789 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
792 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
794 if (!realize_basic_faces (f
))
799 /* Free face cache of frame F. Called from delete_frame. */
802 free_frame_faces (struct frame
*f
)
804 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
808 free_face_cache (face_cache
);
809 FRAME_FACE_CACHE (f
) = NULL
;
812 #ifdef HAVE_WINDOW_SYSTEM
813 if (FRAME_WINDOW_P (f
))
815 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
818 --image_cache
->refcount
;
819 if (image_cache
->refcount
== 0)
820 free_image_cache (f
);
823 #endif /* HAVE_WINDOW_SYSTEM */
827 /* Clear face caches, and recompute basic faces for frame F. Call
828 this after changing frame parameters on which those faces depend,
829 or when realized faces have been freed due to changing attributes
833 recompute_basic_faces (struct frame
*f
)
835 if (FRAME_FACE_CACHE (f
))
837 clear_face_cache (0);
838 if (!realize_basic_faces (f
))
844 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
845 try to free unused fonts, too. */
848 clear_face_cache (int clear_fonts_p
)
850 #ifdef HAVE_WINDOW_SYSTEM
851 Lisp_Object tail
, frame
;
854 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
857 /* Not yet implemented. */
858 clear_font_cache (frame
);
861 /* From time to time see if we can unload some fonts. This also
862 frees all realized faces on all frames. Fonts needed by
863 faces will be loaded again when faces are realized again. */
864 clear_font_table_count
= 0;
866 FOR_EACH_FRAME (tail
, frame
)
868 struct frame
*f
= XFRAME (frame
);
869 if (FRAME_WINDOW_P (f
)
870 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
871 free_all_realized_faces (frame
);
876 /* Clear GCs of realized faces. */
877 FOR_EACH_FRAME (tail
, frame
)
879 struct frame
*f
= XFRAME (frame
);
880 if (FRAME_WINDOW_P (f
))
881 clear_face_gcs (FRAME_FACE_CACHE (f
));
883 clear_image_caches (Qnil
);
885 #endif /* HAVE_WINDOW_SYSTEM */
889 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
890 doc
: /* Clear face caches on all frames.
891 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
892 (Lisp_Object thoroughly
)
894 clear_face_cache (!NILP (thoroughly
));
896 ++windows_or_buffers_changed
;
901 /***********************************************************************
903 ***********************************************************************/
905 #ifdef HAVE_WINDOW_SYSTEM
907 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
908 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
909 A bitmap specification is either a string, a file name, or a list
910 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
911 HEIGHT is its height, and DATA is a string containing the bits of
912 the pixmap. Bits are stored row by row, each row occupies
913 \(WIDTH + 7)/8 bytes. */)
918 if (STRINGP (object
))
919 /* If OBJECT is a string, it's a file name. */
921 else if (CONSP (object
))
923 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
924 HEIGHT must be integers > 0, and DATA must be string large
925 enough to hold a bitmap of the specified size. */
926 Lisp_Object width
, height
, data
;
928 height
= width
= data
= Qnil
;
932 width
= XCAR (object
);
933 object
= XCDR (object
);
936 height
= XCAR (object
);
937 object
= XCDR (object
);
939 data
= XCAR (object
);
944 && INTEGERP (width
) && 0 < XINT (width
)
945 && INTEGERP (height
) && 0 < XINT (height
))
947 EMACS_INT bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
949 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
954 return pixmap_p
? Qt
: Qnil
;
958 /* Load a bitmap according to NAME (which is either a file name or a
959 pixmap spec) for use on frame F. Value is the bitmap_id (see
960 xfns.c). If NAME is nil, return with a bitmap id of zero. If
961 bitmap cannot be loaded, display a message saying so, and return
962 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
963 if these pointers are not null. */
966 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
, unsigned int *h_ptr
)
973 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
978 /* Decode a bitmap spec into a bitmap. */
983 w
= XINT (Fcar (name
));
984 h
= XINT (Fcar (Fcdr (name
)));
985 bits
= Fcar (Fcdr (Fcdr (name
)));
987 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
992 /* It must be a string -- a file name. */
993 bitmap_id
= x_create_bitmap_from_file (f
, name
);
999 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1010 ++npixmaps_allocated
;
1013 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1016 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1022 #endif /* HAVE_WINDOW_SYSTEM */
1026 /***********************************************************************
1028 ***********************************************************************/
1030 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1031 RGB_LIST should contain (at least) 3 lisp integers.
1032 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1035 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
1037 #define PARSE_RGB_LIST_FIELD(field) \
1038 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1040 color->field = XINT (XCAR (rgb_list)); \
1041 rgb_list = XCDR (rgb_list); \
1046 PARSE_RGB_LIST_FIELD (red
);
1047 PARSE_RGB_LIST_FIELD (green
);
1048 PARSE_RGB_LIST_FIELD (blue
);
1054 /* Lookup on frame F the color described by the lisp string COLOR.
1055 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1056 non-zero, then the `standard' definition of the same color is
1060 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
, XColor
*std_color
)
1062 Lisp_Object frame
, color_desc
;
1064 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1067 XSETFRAME (frame
, f
);
1069 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1070 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1074 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1077 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1079 rgb
= XCDR (XCDR (color_desc
));
1080 if (! parse_rgb_list (rgb
, tty_color
))
1083 /* Should we fill in STD_COLOR too? */
1086 /* Default STD_COLOR to the same as TTY_COLOR. */
1087 *std_color
= *tty_color
;
1089 /* Do a quick check to see if the returned descriptor is
1090 actually _exactly_ equal to COLOR, otherwise we have to
1091 lookup STD_COLOR separately. If it's impossible to lookup
1092 a standard color, we just give up and use TTY_COLOR. */
1093 if ((!STRINGP (XCAR (color_desc
))
1094 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1095 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1097 /* Look up STD_COLOR separately. */
1098 rgb
= call1 (Qtty_color_standard_values
, color
);
1099 if (! parse_rgb_list (rgb
, std_color
))
1106 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1107 /* We were called early during startup, and the colors are not
1108 yet set up in tty-defined-color-alist. Don't return a failure
1109 indication, since this produces the annoying "Unable to
1110 load color" messages in the *Messages* buffer. */
1113 /* tty-color-desc seems to have returned a bad value. */
1117 /* A version of defined_color for non-X frames. */
1120 tty_defined_color (struct frame
*f
, const char *color_name
,
1121 XColor
*color_def
, int alloc
)
1126 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1128 color_def
->blue
= 0;
1129 color_def
->green
= 0;
1132 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1134 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1136 if (strcmp (color_name
, "unspecified-fg") == 0)
1137 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1138 else if (strcmp (color_name
, "unspecified-bg") == 0)
1139 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1142 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1149 /* Decide if color named COLOR_NAME is valid for the display
1150 associated with the frame F; if so, return the rgb values in
1151 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1153 This does the right thing for any type of frame. */
1156 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
, int alloc
)
1158 if (!FRAME_WINDOW_P (f
))
1159 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1160 #ifdef HAVE_X_WINDOWS
1161 else if (FRAME_X_P (f
))
1162 return x_defined_color (f
, color_name
, color_def
, alloc
);
1165 else if (FRAME_W32_P (f
))
1166 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1169 else if (FRAME_NS_P (f
))
1170 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1177 /* Given the index IDX of a tty color on frame F, return its name, a
1181 tty_color_name (struct frame
*f
, int idx
)
1183 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1186 Lisp_Object coldesc
;
1188 XSETFRAME (frame
, f
);
1189 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1191 if (!NILP (coldesc
))
1192 return XCAR (coldesc
);
1195 /* We can have an MSDOG frame under -nw for a short window of
1196 opportunity before internal_terminal_init is called. DTRT. */
1197 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1198 return msdos_stdcolor_name (idx
);
1201 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1202 return build_string (unspecified_fg
);
1203 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1204 return build_string (unspecified_bg
);
1206 return Qunspecified
;
1210 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1213 The criterion implemented here is not a terribly sophisticated one. */
1216 face_color_gray_p (struct frame
*f
, const char *color_name
)
1221 if (defined_color (f
, color_name
, &color
, 0))
1222 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1223 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1225 ((eabs (color
.red
- color
.green
)
1226 < max (color
.red
, color
.green
) / 20)
1227 && (eabs (color
.green
- color
.blue
)
1228 < max (color
.green
, color
.blue
) / 20)
1229 && (eabs (color
.blue
- color
.red
)
1230 < max (color
.blue
, color
.red
) / 20)));
1238 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1239 BACKGROUND_P non-zero means the color will be used as background
1243 face_color_supported_p (struct frame
*f
, const char *color_name
, int background_p
)
1248 XSETFRAME (frame
, f
);
1250 #ifdef HAVE_WINDOW_SYSTEM
1252 ? (!NILP (Fxw_display_color_p (frame
))
1253 || xstrcasecmp (color_name
, "black") == 0
1254 || xstrcasecmp (color_name
, "white") == 0
1256 && face_color_gray_p (f
, color_name
))
1257 || (!NILP (Fx_display_grayscale_p (frame
))
1258 && face_color_gray_p (f
, color_name
)))
1261 tty_defined_color (f
, color_name
, ¬_used
, 0);
1265 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1266 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1267 FRAME specifies the frame and thus the display for interpreting COLOR.
1268 If FRAME is nil or omitted, use the selected frame. */)
1269 (Lisp_Object color
, Lisp_Object frame
)
1273 CHECK_STRING (color
);
1275 frame
= selected_frame
;
1277 CHECK_FRAME (frame
);
1279 return face_color_gray_p (f
, SSDATA (color
)) ? Qt
: Qnil
;
1283 DEFUN ("color-supported-p", Fcolor_supported_p
,
1284 Scolor_supported_p
, 1, 3, 0,
1285 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1286 BACKGROUND-P non-nil means COLOR is used as a background.
1287 Otherwise, this function tells whether it can be used as a foreground.
1288 If FRAME is nil or omitted, use the selected frame.
1289 COLOR must be a valid color name. */)
1290 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1294 CHECK_STRING (color
);
1296 frame
= selected_frame
;
1298 CHECK_FRAME (frame
);
1300 if (face_color_supported_p (f
, SSDATA (color
), !NILP (background_p
)))
1306 /* Load color with name NAME for use by face FACE on frame F.
1307 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1308 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1309 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1310 pixel color. If color cannot be loaded, display a message, and
1311 return the foreground, background or underline color of F, but
1312 record that fact in flags of the face so that we don't try to free
1316 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
, enum lface_attribute_index target_index
)
1320 xassert (STRINGP (name
));
1321 xassert (target_index
== LFACE_FOREGROUND_INDEX
1322 || target_index
== LFACE_BACKGROUND_INDEX
1323 || target_index
== LFACE_UNDERLINE_INDEX
1324 || target_index
== LFACE_OVERLINE_INDEX
1325 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1326 || target_index
== LFACE_BOX_INDEX
);
1328 /* if the color map is full, defined_color will return a best match
1329 to the values in an existing cell. */
1330 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1332 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1334 switch (target_index
)
1336 case LFACE_FOREGROUND_INDEX
:
1337 face
->foreground_defaulted_p
= 1;
1338 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1341 case LFACE_BACKGROUND_INDEX
:
1342 face
->background_defaulted_p
= 1;
1343 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1346 case LFACE_UNDERLINE_INDEX
:
1347 face
->underline_defaulted_p
= 1;
1348 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1351 case LFACE_OVERLINE_INDEX
:
1352 face
->overline_color_defaulted_p
= 1;
1353 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1356 case LFACE_STRIKE_THROUGH_INDEX
:
1357 face
->strike_through_color_defaulted_p
= 1;
1358 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1361 case LFACE_BOX_INDEX
:
1362 face
->box_color_defaulted_p
= 1;
1363 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1372 ++ncolors_allocated
;
1379 #ifdef HAVE_WINDOW_SYSTEM
1381 /* Load colors for face FACE which is used on frame F. Colors are
1382 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1383 of ATTRS. If the background color specified is not supported on F,
1384 try to emulate gray colors with a stipple from Vface_default_stipple. */
1387 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1391 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1392 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1394 /* Swap colors if face is inverse-video. */
1395 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1403 /* Check for support for foreground, not for background because
1404 face_color_supported_p is smart enough to know that grays are
1405 "supported" as background because we are supposed to use stipple
1407 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1408 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1410 x_destroy_bitmap (f
, face
->stipple
);
1411 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1412 &face
->pixmap_w
, &face
->pixmap_h
);
1415 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1416 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1420 /* Free color PIXEL on frame F. */
1423 unload_color (struct frame
*f
, long unsigned int pixel
)
1425 #ifdef HAVE_X_WINDOWS
1429 x_free_colors (f
, &pixel
, 1);
1436 /* Free colors allocated for FACE. */
1439 free_face_colors (struct frame
*f
, struct face
*face
)
1441 /* PENDING(NS): need to do something here? */
1442 #ifdef HAVE_X_WINDOWS
1443 if (face
->colors_copied_bitwise_p
)
1448 if (!face
->foreground_defaulted_p
)
1450 x_free_colors (f
, &face
->foreground
, 1);
1451 IF_DEBUG (--ncolors_allocated
);
1454 if (!face
->background_defaulted_p
)
1456 x_free_colors (f
, &face
->background
, 1);
1457 IF_DEBUG (--ncolors_allocated
);
1460 if (face
->underline_p
1461 && !face
->underline_defaulted_p
)
1463 x_free_colors (f
, &face
->underline_color
, 1);
1464 IF_DEBUG (--ncolors_allocated
);
1467 if (face
->overline_p
1468 && !face
->overline_color_defaulted_p
)
1470 x_free_colors (f
, &face
->overline_color
, 1);
1471 IF_DEBUG (--ncolors_allocated
);
1474 if (face
->strike_through_p
1475 && !face
->strike_through_color_defaulted_p
)
1477 x_free_colors (f
, &face
->strike_through_color
, 1);
1478 IF_DEBUG (--ncolors_allocated
);
1481 if (face
->box
!= FACE_NO_BOX
1482 && !face
->box_color_defaulted_p
)
1484 x_free_colors (f
, &face
->box_color
, 1);
1485 IF_DEBUG (--ncolors_allocated
);
1489 #endif /* HAVE_X_WINDOWS */
1492 #endif /* HAVE_WINDOW_SYSTEM */
1496 /***********************************************************************
1498 ***********************************************************************/
1500 /* An enumerator for each field of an XLFD font name. */
1521 /* An enumerator for each possible slant value of a font. Taken from
1522 the XLFD specification. */
1530 XLFD_SLANT_REVERSE_ITALIC
,
1531 XLFD_SLANT_REVERSE_OBLIQUE
,
1535 /* Relative font weight according to XLFD documentation. */
1539 XLFD_WEIGHT_UNKNOWN
,
1540 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1541 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1542 XLFD_WEIGHT_LIGHT
, /* 30 */
1543 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1544 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1545 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1546 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1547 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1548 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1551 /* Relative proportionate width. */
1555 XLFD_SWIDTH_UNKNOWN
,
1556 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1557 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1558 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1559 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1560 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1561 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1562 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1563 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1564 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1567 /* Order by which font selection chooses fonts. The default values
1568 mean `first, find a best match for the font width, then for the
1569 font height, then for weight, then for slant.' This variable can be
1570 set via set-face-font-sort-order. */
1572 static int font_sort_order
[4];
1574 #ifdef HAVE_WINDOW_SYSTEM
1576 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1579 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1581 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1582 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1585 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1587 enum font_property_index idx
= font_props_for_sorting
[i
];
1588 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1591 if (idx
<= FONT_REGISTRY_INDEX
)
1594 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1596 result
= STRINGP (val2
) ? 1 : 0;
1600 if (INTEGERP (val1
))
1601 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1603 result
= INTEGERP (val2
) ? 1 : 0;
1611 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1612 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1613 If FAMILY is omitted or nil, list all families.
1614 Otherwise, FAMILY must be a string, possibly containing wildcards
1616 If FRAME is omitted or nil, use the selected frame.
1617 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1618 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1619 FAMILY is the font family name. POINT-SIZE is the size of the
1620 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1621 width, weight and slant of the font. These symbols are the same as for
1622 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1623 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1624 giving the registry and encoding of the font.
1625 The result list is sorted according to the current setting of
1626 the face font sort order. */)
1627 (Lisp_Object family
, Lisp_Object frame
)
1629 Lisp_Object font_spec
, list
, *drivers
, vec
;
1630 int i
, nfonts
, ndrivers
;
1634 frame
= selected_frame
;
1635 CHECK_LIVE_FRAME (frame
);
1637 font_spec
= Ffont_spec (0, NULL
);
1640 CHECK_STRING (family
);
1641 font_parse_family_registry (family
, Qnil
, font_spec
);
1644 list
= font_list_entities (frame
, font_spec
);
1648 /* Sort the font entities. */
1649 for (i
= 0; i
< 4; i
++)
1650 switch (font_sort_order
[i
])
1653 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1654 case XLFD_POINT_SIZE
:
1655 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1657 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1659 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1661 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1662 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1663 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1664 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1666 ndrivers
= XINT (Flength (list
));
1667 drivers
= alloca (sizeof (Lisp_Object
) * ndrivers
);
1668 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1669 drivers
[i
] = XCAR (list
);
1670 vec
= Fvconcat (ndrivers
, drivers
);
1671 nfonts
= ASIZE (vec
);
1673 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1674 compare_fonts_by_sort_order
);
1677 for (i
= nfonts
- 1; i
>= 0; --i
)
1679 Lisp_Object font
= AREF (vec
, i
);
1680 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1682 Lisp_Object spacing
;
1684 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1685 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1686 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1687 XFRAME (frame
)->resy
);
1688 ASET (v
, 2, make_number (point
));
1689 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1690 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1691 spacing
= Ffont_get (font
, QCspacing
);
1692 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1693 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1694 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1696 result
= Fcons (v
, result
);
1702 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1703 doc
: /* Return a list of the names of available fonts matching PATTERN.
1704 If optional arguments FACE and FRAME are specified, return only fonts
1705 the same size as FACE on FRAME.
1707 PATTERN should be a string containing a font name in the XLFD,
1708 Fontconfig, or GTK format. A font name given in the XLFD format may
1709 contain wildcard characters:
1710 the * character matches any substring, and
1711 the ? character matches any single character.
1712 PATTERN is case-insensitive.
1714 The return value is a list of strings, suitable as arguments to
1717 Fonts Emacs can't use may or may not be excluded
1718 even if they match PATTERN and FACE.
1719 The optional fourth argument MAXIMUM sets a limit on how many
1720 fonts to match. The first MAXIMUM fonts are reported.
1721 The optional fifth argument WIDTH, if specified, is a number of columns
1722 occupied by a character of a font. In that case, return only fonts
1723 the WIDTH times as wide as FACE on FRAME. */)
1724 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
, Lisp_Object maximum
, Lisp_Object width
)
1727 int size
, avgwidth
IF_LINT (= 0);
1730 CHECK_STRING (pattern
);
1732 if (! NILP (maximum
))
1733 CHECK_NATNUM (maximum
);
1736 CHECK_NUMBER (width
);
1738 /* We can't simply call check_x_frame because this function may be
1739 called before any frame is created. */
1741 frame
= selected_frame
;
1742 f
= frame_or_selected_frame (frame
, 2);
1743 if (! FRAME_WINDOW_P (f
))
1745 /* Perhaps we have not yet created any frame. */
1751 /* Determine the width standard for comparison with the fonts we find. */
1757 /* This is of limited utility since it works with character
1758 widths. Keep it for compatibility. --gerd. */
1759 int face_id
= lookup_named_face (f
, face
, 0);
1760 struct face
*width_face
= (face_id
< 0
1762 : FACE_FROM_ID (f
, face_id
));
1764 if (width_face
&& width_face
->font
)
1766 size
= width_face
->font
->pixel_size
;
1767 avgwidth
= width_face
->font
->average_width
;
1771 size
= FRAME_FONT (f
)->pixel_size
;
1772 avgwidth
= FRAME_FONT (f
)->average_width
;
1775 avgwidth
*= XINT (width
);
1779 Lisp_Object font_spec
;
1780 Lisp_Object args
[2], tail
;
1782 font_spec
= font_spec_from_name (pattern
);
1783 if (!FONTP (font_spec
))
1784 signal_error ("Invalid font name", pattern
);
1788 Ffont_put (font_spec
, QCsize
, make_number (size
));
1789 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1791 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1792 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1794 Lisp_Object font_entity
;
1796 font_entity
= XCAR (tail
);
1797 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1798 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1799 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1801 /* This is a scalable font. For backward compatibility,
1802 we set the specified size. */
1803 font_entity
= copy_font_spec (font_entity
);
1804 ASET (font_entity
, FONT_SIZE_INDEX
,
1805 AREF (font_spec
, FONT_SIZE_INDEX
));
1807 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1810 /* We don't have to check fontsets. */
1812 args
[1] = list_fontsets (f
, pattern
, size
);
1813 return Fnconc (2, args
);
1817 #endif /* HAVE_WINDOW_SYSTEM */
1820 /***********************************************************************
1822 ***********************************************************************/
1824 /* Access face attributes of face LFACE, a Lisp vector. */
1826 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1827 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1828 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1829 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1830 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1831 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1832 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1833 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1834 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1835 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1836 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1837 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1838 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1839 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1840 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1841 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1842 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1845 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1846 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1848 #define LFACEP(LFACE) \
1850 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1851 && EQ (AREF (LFACE, 0), Qface))
1857 /* Check consistency of Lisp face attribute vector ATTRS. */
1860 check_lface_attrs (Lisp_Object
*attrs
)
1862 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1863 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1864 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1865 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1866 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1867 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1868 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1869 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1870 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1871 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1872 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1873 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1874 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1875 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1876 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1877 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1878 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1879 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1880 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1881 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1882 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1883 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1884 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1885 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
1886 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1887 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1888 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1889 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1890 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1891 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1892 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1893 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1894 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1895 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1896 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1897 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1898 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1899 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1900 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1901 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1902 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1903 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1904 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1905 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1906 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1907 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1908 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1909 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1910 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1911 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1912 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1913 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1914 #ifdef HAVE_WINDOW_SYSTEM
1915 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1916 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1917 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1918 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1919 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1920 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1921 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1922 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1923 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1924 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1929 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1932 check_lface (Lisp_Object lface
)
1936 xassert (LFACEP (lface
));
1937 check_lface_attrs (XVECTOR (lface
)->contents
);
1941 #else /* GLYPH_DEBUG == 0 */
1943 #define check_lface_attrs(attrs) (void) 0
1944 #define check_lface(lface) (void) 0
1946 #endif /* GLYPH_DEBUG == 0 */
1950 /* Face-merge cycle checking. */
1952 enum named_merge_point_kind
1954 NAMED_MERGE_POINT_NORMAL
,
1955 NAMED_MERGE_POINT_REMAP
1958 /* A `named merge point' is simply a point during face-merging where we
1959 look up a face by name. We keep a stack of which named lookups we're
1960 currently processing so that we can easily detect cycles, using a
1961 linked- list of struct named_merge_point structures, typically
1962 allocated on the stack frame of the named lookup functions which are
1963 active (so no consing is required). */
1964 struct named_merge_point
1966 Lisp_Object face_name
;
1967 enum named_merge_point_kind named_merge_point_kind
;
1968 struct named_merge_point
*prev
;
1972 /* If a face merging cycle is detected for FACE_NAME, return 0,
1973 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1974 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1975 pointed to by NAMED_MERGE_POINTS, and return 1. */
1978 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1979 Lisp_Object face_name
,
1980 enum named_merge_point_kind named_merge_point_kind
,
1981 struct named_merge_point
**named_merge_points
)
1983 struct named_merge_point
*prev
;
1985 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1986 if (EQ (face_name
, prev
->face_name
))
1988 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1989 /* A cycle, so fail. */
1991 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1992 /* A remap `hides ' any previous normal merge points
1993 (because the remap means that it's actually different face),
1994 so as we know the current merge point must be normal, we
1995 can just assume it's OK. */
1999 new_named_merge_point
->face_name
= face_name
;
2000 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
2001 new_named_merge_point
->prev
= *named_merge_points
;
2003 *named_merge_points
= new_named_merge_point
;
2009 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2010 to make it a symbol. If FACE_NAME is an alias for another face,
2011 return that face's name.
2013 Return default face in case of errors. */
2016 resolve_face_name (Lisp_Object face_name
, int signal_p
)
2018 Lisp_Object orig_face
;
2019 Lisp_Object tortoise
, hare
;
2021 if (STRINGP (face_name
))
2022 face_name
= intern (SSDATA (face_name
));
2024 if (NILP (face_name
) || !SYMBOLP (face_name
))
2027 orig_face
= face_name
;
2028 tortoise
= hare
= face_name
;
2033 hare
= Fget (hare
, Qface_alias
);
2034 if (NILP (hare
) || !SYMBOLP (hare
))
2038 hare
= Fget (hare
, Qface_alias
);
2039 if (NILP (hare
) || !SYMBOLP (hare
))
2042 tortoise
= Fget (tortoise
, Qface_alias
);
2043 if (EQ (hare
, tortoise
))
2046 xsignal1 (Qcircular_list
, orig_face
);
2055 /* Return the face definition of FACE_NAME on frame F. F null means
2056 return the definition for new frames. FACE_NAME may be a string or
2057 a symbol (apparently Emacs 20.2 allowed strings as face names in
2058 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2059 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2060 is zero, value is nil if FACE_NAME is not a valid face name. */
2061 static inline Lisp_Object
2062 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2067 lface
= assq_no_quit (face_name
, f
->face_alist
);
2069 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2072 lface
= XCDR (lface
);
2074 signal_error ("Invalid face", face_name
);
2076 check_lface (lface
);
2081 /* Return the face definition of FACE_NAME on frame F. F null means
2082 return the definition for new frames. FACE_NAME may be a string or
2083 a symbol (apparently Emacs 20.2 allowed strings as face names in
2084 face text properties; Ediff uses that). If FACE_NAME is an alias
2085 for another face, return that face's definition. If SIGNAL_P is
2086 non-zero, signal an error if FACE_NAME is not a valid face name.
2087 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2089 static inline Lisp_Object
2090 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2092 face_name
= resolve_face_name (face_name
, signal_p
);
2093 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2097 /* Get face attributes of face FACE_NAME from frame-local faces on
2098 frame F. Store the resulting attributes in ATTRS which must point
2099 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2100 is non-zero, signal an error if FACE_NAME does not name a face.
2101 Otherwise, value is zero if FACE_NAME is not a face. */
2104 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
)
2108 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2111 memcpy (attrs
, XVECTOR (lface
)->contents
,
2112 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2114 return !NILP (lface
);
2117 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2118 F. Store the resulting attributes in ATTRS which must point to a
2119 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2120 alias for another face, use that face's definition. If SIGNAL_P is
2121 non-zero, signal an error if FACE_NAME does not name a face.
2122 Otherwise, value is zero if FACE_NAME is not a face. */
2125 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
, struct named_merge_point
*named_merge_points
)
2127 Lisp_Object face_remapping
;
2129 face_name
= resolve_face_name (face_name
, signal_p
);
2131 /* See if SYMBOL has been remapped to some other face (usually this
2132 is done buffer-locally). */
2133 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2134 if (CONSP (face_remapping
))
2136 struct named_merge_point named_merge_point
;
2138 if (push_named_merge_point (&named_merge_point
,
2139 face_name
, NAMED_MERGE_POINT_REMAP
,
2140 &named_merge_points
))
2144 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2145 attrs
[i
] = Qunspecified
;
2147 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2148 signal_p
, named_merge_points
);
2152 /* Default case, no remapping. */
2153 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2157 /* Non-zero if all attributes in face attribute vector ATTRS are
2158 specified, i.e. are non-nil. */
2161 lface_fully_specified_p (Lisp_Object
*attrs
)
2165 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2166 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2167 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2170 return i
== LFACE_VECTOR_SIZE
;
2173 #ifdef HAVE_WINDOW_SYSTEM
2175 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2176 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2177 exception is `font' attribute. It is set to FONT_OBJECT regardless
2181 set_lface_from_font (struct frame
*f
, Lisp_Object lface
, Lisp_Object font_object
, int force_p
)
2184 struct font
*font
= XFONT_OBJECT (font_object
);
2186 /* Set attributes only if unspecified, otherwise face defaults for
2187 new frames would never take effect. If the font doesn't have a
2188 specific property, set a normal value for that. */
2190 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2192 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2194 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2197 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2199 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2201 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2204 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2206 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2209 LFACE_HEIGHT (lface
) = make_number (pt
);
2212 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2214 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2215 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2217 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2219 val
= FONT_SLANT_FOR_FACE (font_object
);
2220 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2222 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2224 val
= FONT_WIDTH_FOR_FACE (font_object
);
2225 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2228 LFACE_FONT (lface
) = font_object
;
2232 #endif /* HAVE_WINDOW_SYSTEM */
2235 /* Merges the face height FROM with the face height TO, and returns the
2236 merged height. If FROM is an invalid height, then INVALID is
2237 returned instead. FROM and TO may be either absolute face heights or
2238 `relative' heights; the returned value is always an absolute height
2239 unless both FROM and TO are relative. */
2242 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2244 Lisp_Object result
= invalid
;
2246 if (INTEGERP (from
))
2247 /* FROM is absolute, just use it as is. */
2249 else if (FLOATP (from
))
2250 /* FROM is a scale, use it to adjust TO. */
2253 /* relative X absolute => absolute */
2254 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2255 else if (FLOATP (to
))
2256 /* relative X relative => relative */
2257 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2258 else if (UNSPECIFIEDP (to
))
2261 else if (FUNCTIONP (from
))
2262 /* FROM is a function, which use to adjust TO. */
2264 /* Call function with current height as argument.
2265 From is the new height. */
2266 Lisp_Object args
[2];
2270 result
= safe_call (2, args
);
2272 /* Ensure that if TO was absolute, so is the result. */
2273 if (INTEGERP (to
) && !INTEGERP (result
))
2281 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2282 store the resulting attributes in TO, which must be already be
2283 completely specified and contain only absolute attributes. Every
2284 specified attribute of FROM overrides the corresponding attribute of
2285 TO; relative attributes in FROM are merged with the absolute value in
2286 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2287 loops in face inheritance/remapping; it should be 0 when called from
2291 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2295 /* If FROM inherits from some other faces, merge their attributes into
2296 TO before merging FROM's direct attributes. Note that an :inherit
2297 attribute of `unspecified' is the same as one of nil; we never
2298 merge :inherit attributes, so nil is more correct, but lots of
2299 other code uses `unspecified' as a generic value for face attributes. */
2300 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2301 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2302 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2304 i
= LFACE_FONT_INDEX
;
2305 if (!UNSPECIFIEDP (from
[i
]))
2307 if (!UNSPECIFIEDP (to
[i
]))
2308 to
[i
] = merge_font_spec (from
[i
], to
[i
]);
2310 to
[i
] = copy_font_spec (from
[i
]);
2311 if (! NILP (AREF (to
[i
], FONT_FOUNDRY_INDEX
)))
2312 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FOUNDRY_INDEX
));
2313 if (! NILP (AREF (to
[i
], FONT_FAMILY_INDEX
)))
2314 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FAMILY_INDEX
));
2315 if (! NILP (AREF (to
[i
], FONT_WEIGHT_INDEX
)))
2316 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (to
[i
]);
2317 if (! NILP (AREF (to
[i
], FONT_SLANT_INDEX
)))
2318 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (to
[i
]);
2319 if (! NILP (AREF (to
[i
], FONT_WIDTH_INDEX
)))
2320 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (to
[i
]);
2321 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2324 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2325 if (!UNSPECIFIEDP (from
[i
]))
2327 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2329 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2330 font_clear_prop (to
, FONT_SIZE_INDEX
);
2332 else if (i
!= LFACE_FONT_INDEX
2333 && ! EQ (to
[i
], from
[i
]))
2336 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2337 font_clear_prop (to
,
2338 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2339 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2340 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2341 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2342 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2343 : FONT_SLANT_INDEX
));
2347 /* TO is always an absolute face, which should inherit from nothing.
2348 We blindly copy the :inherit attribute above and fix it up here. */
2349 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2352 /* Merge the named face FACE_NAME on frame F, into the vector of face
2353 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2354 inheritance. Returns true if FACE_NAME is a valid face name and
2355 merging succeeded. */
2358 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2360 struct named_merge_point named_merge_point
;
2362 if (push_named_merge_point (&named_merge_point
,
2363 face_name
, NAMED_MERGE_POINT_NORMAL
,
2364 &named_merge_points
))
2366 struct gcpro gcpro1
;
2367 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2368 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2372 GCPRO1 (named_merge_point
.face_name
);
2373 merge_face_vectors (f
, from
, to
, named_merge_points
);
2384 /* Merge face attributes from the lisp `face reference' FACE_REF on
2385 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2386 problems with FACE_REF cause an error message to be shown. Return
2387 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2388 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2389 list structure; it may be 0 for most callers.
2391 FACE_REF may be a single face specification or a list of such
2392 specifications. Each face specification can be:
2394 1. A symbol or string naming a Lisp face.
2396 2. A property list of the form (KEYWORD VALUE ...) where each
2397 KEYWORD is a face attribute name, and value is an appropriate value
2400 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2401 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2402 for compatibility with 20.2.
2404 Face specifications earlier in lists take precedence over later
2408 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
, int err_msgs
, struct named_merge_point
*named_merge_points
)
2410 int ok
= 1; /* Succeed without an error? */
2412 if (CONSP (face_ref
))
2414 Lisp_Object first
= XCAR (face_ref
);
2416 if (EQ (first
, Qforeground_color
)
2417 || EQ (first
, Qbackground_color
))
2419 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2420 . COLOR). COLOR must be a string. */
2421 Lisp_Object color_name
= XCDR (face_ref
);
2422 Lisp_Object color
= first
;
2424 if (STRINGP (color_name
))
2426 if (EQ (color
, Qforeground_color
))
2427 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2429 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2434 add_to_log ("Invalid face color", color_name
, Qnil
);
2438 else if (SYMBOLP (first
)
2439 && *SDATA (SYMBOL_NAME (first
)) == ':')
2441 /* Assume this is the property list form. */
2442 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2444 Lisp_Object keyword
= XCAR (face_ref
);
2445 Lisp_Object value
= XCAR (XCDR (face_ref
));
2448 /* Specifying `unspecified' is a no-op. */
2449 if (EQ (value
, Qunspecified
))
2451 else if (EQ (keyword
, QCfamily
))
2453 if (STRINGP (value
))
2455 to
[LFACE_FAMILY_INDEX
] = value
;
2456 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2461 else if (EQ (keyword
, QCfoundry
))
2463 if (STRINGP (value
))
2465 to
[LFACE_FOUNDRY_INDEX
] = value
;
2466 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2471 else if (EQ (keyword
, QCheight
))
2473 Lisp_Object new_height
=
2474 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2476 if (! NILP (new_height
))
2478 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2479 font_clear_prop (to
, FONT_SIZE_INDEX
);
2484 else if (EQ (keyword
, QCweight
))
2486 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2488 to
[LFACE_WEIGHT_INDEX
] = value
;
2489 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2494 else if (EQ (keyword
, QCslant
))
2496 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2498 to
[LFACE_SLANT_INDEX
] = value
;
2499 font_clear_prop (to
, FONT_SLANT_INDEX
);
2504 else if (EQ (keyword
, QCunderline
))
2509 to
[LFACE_UNDERLINE_INDEX
] = value
;
2513 else if (EQ (keyword
, QCoverline
))
2518 to
[LFACE_OVERLINE_INDEX
] = value
;
2522 else if (EQ (keyword
, QCstrike_through
))
2527 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2531 else if (EQ (keyword
, QCbox
))
2534 value
= make_number (1);
2535 if (INTEGERP (value
)
2539 to
[LFACE_BOX_INDEX
] = value
;
2543 else if (EQ (keyword
, QCinverse_video
)
2544 || EQ (keyword
, QCreverse_video
))
2546 if (EQ (value
, Qt
) || NILP (value
))
2547 to
[LFACE_INVERSE_INDEX
] = value
;
2551 else if (EQ (keyword
, QCforeground
))
2553 if (STRINGP (value
))
2554 to
[LFACE_FOREGROUND_INDEX
] = value
;
2558 else if (EQ (keyword
, QCbackground
))
2560 if (STRINGP (value
))
2561 to
[LFACE_BACKGROUND_INDEX
] = value
;
2565 else if (EQ (keyword
, QCstipple
))
2567 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
2568 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2569 if (!NILP (pixmap_p
))
2570 to
[LFACE_STIPPLE_INDEX
] = value
;
2575 else if (EQ (keyword
, QCwidth
))
2577 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2579 to
[LFACE_SWIDTH_INDEX
] = value
;
2580 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2585 else if (EQ (keyword
, QCinherit
))
2587 /* This is not really very useful; it's just like a
2588 normal face reference. */
2589 if (! merge_face_ref (f
, value
, to
,
2590 err_msgs
, named_merge_points
))
2598 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2602 face_ref
= XCDR (XCDR (face_ref
));
2607 /* This is a list of face refs. Those at the beginning of the
2608 list take precedence over what follows, so we have to merge
2609 from the end backwards. */
2610 Lisp_Object next
= XCDR (face_ref
);
2613 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2615 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2621 /* FACE_REF ought to be a face name. */
2622 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2623 if (!ok
&& err_msgs
)
2624 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2631 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2632 Sinternal_make_lisp_face
, 1, 2, 0,
2633 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2634 If FACE was not known as a face before, create a new one.
2635 If optional argument FRAME is specified, make a frame-local face
2636 for that frame. Otherwise operate on the global face definition.
2637 Value is a vector of face attributes. */)
2638 (Lisp_Object face
, Lisp_Object frame
)
2640 Lisp_Object global_lface
, lface
;
2644 CHECK_SYMBOL (face
);
2645 global_lface
= lface_from_face_name (NULL
, face
, 0);
2649 CHECK_LIVE_FRAME (frame
);
2651 lface
= lface_from_face_name (f
, face
, 0);
2654 f
= NULL
, lface
= Qnil
;
2656 /* Add a global definition if there is none. */
2657 if (NILP (global_lface
))
2659 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2661 ASET (global_lface
, 0, Qface
);
2662 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2663 Vface_new_frame_defaults
);
2665 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2666 face id to Lisp face is given by the vector lface_id_to_name.
2667 The mapping from Lisp face to Lisp face id is given by the
2668 property `face' of the Lisp face name. */
2669 if (next_lface_id
== lface_id_to_name_size
)
2671 int new_size
= max (50, 2 * lface_id_to_name_size
);
2672 int sz
= new_size
* sizeof *lface_id_to_name
;
2673 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2674 lface_id_to_name_size
= new_size
;
2677 lface_id_to_name
[next_lface_id
] = face
;
2678 Fput (face
, Qface
, make_number (next_lface_id
));
2682 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2683 ASET (global_lface
, i
, Qunspecified
);
2685 /* Add a frame-local definition. */
2690 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2692 ASET (lface
, 0, Qface
);
2693 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2696 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2697 ASET (lface
, i
, Qunspecified
);
2700 lface
= global_lface
;
2702 /* Changing a named face means that all realized faces depending on
2703 that face are invalid. Since we cannot tell which realized faces
2704 depend on the face, make sure they are all removed. This is done
2705 by incrementing face_change_count. The next call to
2706 init_iterator will then free realized faces. */
2707 if (NILP (Fget (face
, Qface_no_inherit
)))
2709 ++face_change_count
;
2710 ++windows_or_buffers_changed
;
2713 xassert (LFACEP (lface
));
2714 check_lface (lface
);
2719 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2720 Sinternal_lisp_face_p
, 1, 2, 0,
2721 doc
: /* Return non-nil if FACE names a face.
2722 FACE should be a symbol or string.
2723 If optional second argument FRAME is non-nil, check for the
2724 existence of a frame-local face with name FACE on that frame.
2725 Otherwise check for the existence of a global face. */)
2726 (Lisp_Object face
, Lisp_Object frame
)
2730 face
= resolve_face_name (face
, 1);
2734 CHECK_LIVE_FRAME (frame
);
2735 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2738 lface
= lface_from_face_name (NULL
, face
, 0);
2744 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2745 Sinternal_copy_lisp_face
, 4, 4, 0,
2746 doc
: /* Copy face FROM to TO.
2747 If FRAME is t, copy the global face definition of FROM.
2748 Otherwise, copy the frame-local definition of FROM on FRAME.
2749 If NEW-FRAME is a frame, copy that data into the frame-local
2750 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2751 FRAME controls where the data is copied to.
2753 The value is TO. */)
2754 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2756 Lisp_Object lface
, copy
;
2758 CHECK_SYMBOL (from
);
2763 /* Copy global definition of FROM. We don't make copies of
2764 strings etc. because 20.2 didn't do it either. */
2765 lface
= lface_from_face_name (NULL
, from
, 1);
2766 copy
= Finternal_make_lisp_face (to
, Qnil
);
2770 /* Copy frame-local definition of FROM. */
2771 if (NILP (new_frame
))
2773 CHECK_LIVE_FRAME (frame
);
2774 CHECK_LIVE_FRAME (new_frame
);
2775 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2776 copy
= Finternal_make_lisp_face (to
, new_frame
);
2779 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2780 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2782 /* Changing a named face means that all realized faces depending on
2783 that face are invalid. Since we cannot tell which realized faces
2784 depend on the face, make sure they are all removed. This is done
2785 by incrementing face_change_count. The next call to
2786 init_iterator will then free realized faces. */
2787 if (NILP (Fget (to
, Qface_no_inherit
)))
2789 ++face_change_count
;
2790 ++windows_or_buffers_changed
;
2797 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2798 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2799 doc
: /* Set attribute ATTR of FACE to VALUE.
2800 FRAME being a frame means change the face on that frame.
2801 FRAME nil means change the face of the selected frame.
2802 FRAME t means change the default for new frames.
2803 FRAME 0 means change the face on all frames, and change the default
2805 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2808 Lisp_Object old_value
= Qnil
;
2809 /* Set one of enum font_property_index (> 0) if ATTR is one of
2810 font-related attributes other than QCfont and QCfontset. */
2811 enum font_property_index prop_index
= 0;
2813 CHECK_SYMBOL (face
);
2814 CHECK_SYMBOL (attr
);
2816 face
= resolve_face_name (face
, 1);
2818 /* If FRAME is 0, change face on all frames, and change the
2819 default for new frames. */
2820 if (INTEGERP (frame
) && XINT (frame
) == 0)
2823 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2824 FOR_EACH_FRAME (tail
, frame
)
2825 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2829 /* Set lface to the Lisp attribute vector of FACE. */
2832 lface
= lface_from_face_name (NULL
, face
, 1);
2834 /* When updating face-new-frame-defaults, we put :ignore-defface
2835 where the caller wants `unspecified'. This forces the frame
2836 defaults to ignore the defface value. Otherwise, the defface
2837 will take effect, which is generally not what is intended.
2838 The value of that attribute will be inherited from some other
2839 face during face merging. See internal_merge_in_global_face. */
2840 if (UNSPECIFIEDP (value
))
2841 value
= Qignore_defface
;
2846 frame
= selected_frame
;
2848 CHECK_LIVE_FRAME (frame
);
2849 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2851 /* If a frame-local face doesn't exist yet, create one. */
2853 lface
= Finternal_make_lisp_face (face
, frame
);
2856 if (EQ (attr
, QCfamily
))
2858 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2860 CHECK_STRING (value
);
2861 if (SCHARS (value
) == 0)
2862 signal_error ("Invalid face family", value
);
2864 old_value
= LFACE_FAMILY (lface
);
2865 LFACE_FAMILY (lface
) = value
;
2866 prop_index
= FONT_FAMILY_INDEX
;
2868 else if (EQ (attr
, QCfoundry
))
2870 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2872 CHECK_STRING (value
);
2873 if (SCHARS (value
) == 0)
2874 signal_error ("Invalid face foundry", value
);
2876 old_value
= LFACE_FOUNDRY (lface
);
2877 LFACE_FOUNDRY (lface
) = value
;
2878 prop_index
= FONT_FOUNDRY_INDEX
;
2880 else if (EQ (attr
, QCheight
))
2882 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2884 if (EQ (face
, Qdefault
))
2886 /* The default face must have an absolute size. */
2887 if (!INTEGERP (value
) || XINT (value
) <= 0)
2888 signal_error ("Default face height not absolute and positive", value
);
2892 /* For non-default faces, do a test merge with a random
2893 height to see if VALUE's ok. */
2894 Lisp_Object test
= merge_face_heights (value
,
2897 if (!INTEGERP (test
) || XINT (test
) <= 0)
2898 signal_error ("Face height does not produce a positive integer", value
);
2902 old_value
= LFACE_HEIGHT (lface
);
2903 LFACE_HEIGHT (lface
) = value
;
2904 prop_index
= FONT_SIZE_INDEX
;
2906 else if (EQ (attr
, QCweight
))
2908 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2910 CHECK_SYMBOL (value
);
2911 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2912 signal_error ("Invalid face weight", value
);
2914 old_value
= LFACE_WEIGHT (lface
);
2915 LFACE_WEIGHT (lface
) = value
;
2916 prop_index
= FONT_WEIGHT_INDEX
;
2918 else if (EQ (attr
, QCslant
))
2920 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2922 CHECK_SYMBOL (value
);
2923 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2924 signal_error ("Invalid face slant", value
);
2926 old_value
= LFACE_SLANT (lface
);
2927 LFACE_SLANT (lface
) = value
;
2928 prop_index
= FONT_SLANT_INDEX
;
2930 else if (EQ (attr
, QCunderline
))
2932 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2933 if ((SYMBOLP (value
)
2935 && !EQ (value
, Qnil
))
2936 /* Underline color. */
2938 && SCHARS (value
) == 0))
2939 signal_error ("Invalid face underline", value
);
2941 old_value
= LFACE_UNDERLINE (lface
);
2942 LFACE_UNDERLINE (lface
) = value
;
2944 else if (EQ (attr
, QCoverline
))
2946 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2947 if ((SYMBOLP (value
)
2949 && !EQ (value
, Qnil
))
2950 /* Overline color. */
2952 && SCHARS (value
) == 0))
2953 signal_error ("Invalid face overline", value
);
2955 old_value
= LFACE_OVERLINE (lface
);
2956 LFACE_OVERLINE (lface
) = value
;
2958 else if (EQ (attr
, QCstrike_through
))
2960 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2961 if ((SYMBOLP (value
)
2963 && !EQ (value
, Qnil
))
2964 /* Strike-through color. */
2966 && SCHARS (value
) == 0))
2967 signal_error ("Invalid face strike-through", value
);
2969 old_value
= LFACE_STRIKE_THROUGH (lface
);
2970 LFACE_STRIKE_THROUGH (lface
) = value
;
2972 else if (EQ (attr
, QCbox
))
2976 /* Allow t meaning a simple box of width 1 in foreground color
2979 value
= make_number (1);
2981 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2983 else if (NILP (value
))
2985 else if (INTEGERP (value
))
2986 valid_p
= XINT (value
) != 0;
2987 else if (STRINGP (value
))
2988 valid_p
= SCHARS (value
) > 0;
2989 else if (CONSP (value
))
3005 if (EQ (k
, QCline_width
))
3007 if (!INTEGERP (v
) || XINT (v
) == 0)
3010 else if (EQ (k
, QCcolor
))
3012 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3015 else if (EQ (k
, QCstyle
))
3017 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3024 valid_p
= NILP (tem
);
3030 signal_error ("Invalid face box", value
);
3032 old_value
= LFACE_BOX (lface
);
3033 LFACE_BOX (lface
) = value
;
3035 else if (EQ (attr
, QCinverse_video
)
3036 || EQ (attr
, QCreverse_video
))
3038 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3040 CHECK_SYMBOL (value
);
3041 if (!EQ (value
, Qt
) && !NILP (value
))
3042 signal_error ("Invalid inverse-video face attribute value", value
);
3044 old_value
= LFACE_INVERSE (lface
);
3045 LFACE_INVERSE (lface
) = value
;
3047 else if (EQ (attr
, QCforeground
))
3049 /* Compatibility with 20.x. */
3051 value
= Qunspecified
;
3052 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3054 /* Don't check for valid color names here because it depends
3055 on the frame (display) whether the color will be valid
3056 when the face is realized. */
3057 CHECK_STRING (value
);
3058 if (SCHARS (value
) == 0)
3059 signal_error ("Empty foreground color value", value
);
3061 old_value
= LFACE_FOREGROUND (lface
);
3062 LFACE_FOREGROUND (lface
) = value
;
3064 else if (EQ (attr
, QCbackground
))
3066 /* Compatibility with 20.x. */
3068 value
= Qunspecified
;
3069 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3071 /* Don't check for valid color names here because it depends
3072 on the frame (display) whether the color will be valid
3073 when the face is realized. */
3074 CHECK_STRING (value
);
3075 if (SCHARS (value
) == 0)
3076 signal_error ("Empty background color value", value
);
3078 old_value
= LFACE_BACKGROUND (lface
);
3079 LFACE_BACKGROUND (lface
) = value
;
3081 else if (EQ (attr
, QCstipple
))
3083 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3084 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3086 && NILP (Fbitmap_spec_p (value
)))
3087 signal_error ("Invalid stipple attribute", value
);
3088 old_value
= LFACE_STIPPLE (lface
);
3089 LFACE_STIPPLE (lface
) = value
;
3090 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3092 else if (EQ (attr
, QCwidth
))
3094 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3096 CHECK_SYMBOL (value
);
3097 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3098 signal_error ("Invalid face width", value
);
3100 old_value
= LFACE_SWIDTH (lface
);
3101 LFACE_SWIDTH (lface
) = value
;
3102 prop_index
= FONT_WIDTH_INDEX
;
3104 else if (EQ (attr
, QCfont
))
3106 #ifdef HAVE_WINDOW_SYSTEM
3107 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3109 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3113 old_value
= LFACE_FONT (lface
);
3114 if (! FONTP (value
))
3116 if (STRINGP (value
))
3118 Lisp_Object name
= value
;
3119 int fontset
= fs_query_fontset (name
, 0);
3122 name
= fontset_ascii (fontset
);
3123 value
= font_spec_from_name (name
);
3125 signal_error ("Invalid font name", name
);
3128 signal_error ("Invalid font or font-spec", value
);
3131 f
= XFRAME (selected_frame
);
3134 if (! FONT_OBJECT_P (value
))
3136 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3137 Lisp_Object font_object
;
3139 font_object
= font_load_for_lface (f
, attrs
, value
);
3140 if (NILP (font_object
))
3141 signal_error ("Font not available", value
);
3142 value
= font_object
;
3144 set_lface_from_font (f
, lface
, value
, 1);
3147 LFACE_FONT (lface
) = value
;
3149 #endif /* HAVE_WINDOW_SYSTEM */
3151 else if (EQ (attr
, QCfontset
))
3153 #ifdef HAVE_WINDOW_SYSTEM
3154 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3158 old_value
= LFACE_FONTSET (lface
);
3159 tmp
= Fquery_fontset (value
, Qnil
);
3161 signal_error ("Invalid fontset name", value
);
3162 LFACE_FONTSET (lface
) = value
= tmp
;
3164 #endif /* HAVE_WINDOW_SYSTEM */
3166 else if (EQ (attr
, QCinherit
))
3169 if (SYMBOLP (value
))
3172 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3173 if (!SYMBOLP (XCAR (tail
)))
3176 LFACE_INHERIT (lface
) = value
;
3178 signal_error ("Invalid face inheritance", value
);
3180 else if (EQ (attr
, QCbold
))
3182 old_value
= LFACE_WEIGHT (lface
);
3183 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3184 prop_index
= FONT_WEIGHT_INDEX
;
3186 else if (EQ (attr
, QCitalic
))
3189 old_value
= LFACE_SLANT (lface
);
3190 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3191 prop_index
= FONT_SLANT_INDEX
;
3194 signal_error ("Invalid face attribute name", attr
);
3198 /* If a font-related attribute other than QCfont and QCfontset
3199 is specified, and if the original QCfont attribute has a font
3200 (font-spec or font-object), set the corresponding property in
3201 the font to nil so that the font selector doesn't think that
3202 the attribute is mandatory. Also, clear the average
3204 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3207 /* Changing a named face means that all realized faces depending on
3208 that face are invalid. Since we cannot tell which realized faces
3209 depend on the face, make sure they are all removed. This is done
3210 by incrementing face_change_count. The next call to
3211 init_iterator will then free realized faces. */
3213 && NILP (Fget (face
, Qface_no_inherit
))
3214 && NILP (Fequal (old_value
, value
)))
3216 ++face_change_count
;
3217 ++windows_or_buffers_changed
;
3220 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3221 && NILP (Fequal (old_value
, value
)))
3227 if (EQ (face
, Qdefault
))
3229 #ifdef HAVE_WINDOW_SYSTEM
3230 /* Changed font-related attributes of the `default' face are
3231 reflected in changed `font' frame parameters. */
3233 && (prop_index
|| EQ (attr
, QCfont
))
3234 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3235 set_font_frame_param (frame
, lface
);
3237 #endif /* HAVE_WINDOW_SYSTEM */
3239 if (EQ (attr
, QCforeground
))
3240 param
= Qforeground_color
;
3241 else if (EQ (attr
, QCbackground
))
3242 param
= Qbackground_color
;
3244 #ifdef HAVE_WINDOW_SYSTEM
3246 else if (EQ (face
, Qscroll_bar
))
3248 /* Changing the colors of `scroll-bar' sets frame parameters
3249 `scroll-bar-foreground' and `scroll-bar-background'. */
3250 if (EQ (attr
, QCforeground
))
3251 param
= Qscroll_bar_foreground
;
3252 else if (EQ (attr
, QCbackground
))
3253 param
= Qscroll_bar_background
;
3255 #endif /* not WINDOWSNT */
3256 else if (EQ (face
, Qborder
))
3258 /* Changing background color of `border' sets frame parameter
3260 if (EQ (attr
, QCbackground
))
3261 param
= Qborder_color
;
3263 else if (EQ (face
, Qcursor
))
3265 /* Changing background color of `cursor' sets frame parameter
3267 if (EQ (attr
, QCbackground
))
3268 param
= Qcursor_color
;
3270 else if (EQ (face
, Qmouse
))
3272 /* Changing background color of `mouse' sets frame parameter
3274 if (EQ (attr
, QCbackground
))
3275 param
= Qmouse_color
;
3277 #endif /* HAVE_WINDOW_SYSTEM */
3278 else if (EQ (face
, Qmenu
))
3280 /* Indicate that we have to update the menu bar when
3281 realizing faces on FRAME. FRAME t change the
3282 default for new frames. We do this by setting
3283 setting the flag in new face caches */
3286 struct frame
*f
= XFRAME (frame
);
3287 if (FRAME_FACE_CACHE (f
) == NULL
)
3288 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3289 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3292 menu_face_changed_default
= 1;
3298 /* Update `default-frame-alist', which is used for new frames. */
3300 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3303 /* Update the current frame's parameters. */
3306 cons
= XCAR (Vparam_value_alist
);
3307 XSETCAR (cons
, param
);
3308 XSETCDR (cons
, value
);
3309 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3318 /* Update the corresponding face when frame parameter PARAM on frame F
3319 has been assigned the value NEW_VALUE. */
3322 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
, Lisp_Object new_value
)
3324 Lisp_Object face
= Qnil
;
3327 /* If there are no faces yet, give up. This is the case when called
3328 from Fx_create_frame, and we do the necessary things later in
3329 face-set-after-frame-defaults. */
3330 if (NILP (f
->face_alist
))
3333 if (EQ (param
, Qforeground_color
))
3336 lface
= lface_from_face_name (f
, face
, 1);
3337 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3338 ? new_value
: Qunspecified
);
3339 realize_basic_faces (f
);
3341 else if (EQ (param
, Qbackground_color
))
3345 /* Changing the background color might change the background
3346 mode, so that we have to load new defface specs.
3347 Call frame-update-face-colors to do that. */
3348 XSETFRAME (frame
, f
);
3349 call1 (Qframe_set_background_mode
, frame
);
3352 lface
= lface_from_face_name (f
, face
, 1);
3353 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3354 ? new_value
: Qunspecified
);
3355 realize_basic_faces (f
);
3357 #ifdef HAVE_WINDOW_SYSTEM
3358 else if (EQ (param
, Qborder_color
))
3361 lface
= lface_from_face_name (f
, face
, 1);
3362 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3363 ? new_value
: Qunspecified
);
3365 else if (EQ (param
, Qcursor_color
))
3368 lface
= lface_from_face_name (f
, face
, 1);
3369 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3370 ? new_value
: Qunspecified
);
3372 else if (EQ (param
, Qmouse_color
))
3375 lface
= lface_from_face_name (f
, face
, 1);
3376 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3377 ? new_value
: Qunspecified
);
3381 /* Changing a named face means that all realized faces depending on
3382 that face are invalid. Since we cannot tell which realized faces
3383 depend on the face, make sure they are all removed. This is done
3384 by incrementing face_change_count. The next call to
3385 init_iterator will then free realized faces. */
3387 && NILP (Fget (face
, Qface_no_inherit
)))
3389 ++face_change_count
;
3390 ++windows_or_buffers_changed
;
3395 #ifdef HAVE_WINDOW_SYSTEM
3397 /* Set the `font' frame parameter of FRAME determined from the
3398 font-object set in `default' face attributes LFACE. */
3401 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3403 struct frame
*f
= XFRAME (frame
);
3406 if (FRAME_WINDOW_P (f
)
3407 /* Don't do anything if the font is `unspecified'. This can
3408 happen during frame creation. */
3409 && (font
= LFACE_FONT (lface
),
3410 ! UNSPECIFIEDP (font
)))
3412 if (FONT_SPEC_P (font
))
3414 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3417 LFACE_FONT (lface
) = font
;
3419 f
->default_face_done_p
= 0;
3420 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3425 /* Get the value of X resource RESOURCE, class CLASS for the display
3426 of frame FRAME. This is here because ordinary `x-get-resource'
3427 doesn't take a frame argument. */
3429 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3430 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3431 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3433 Lisp_Object value
= Qnil
;
3434 CHECK_STRING (resource
);
3435 CHECK_STRING (class);
3436 CHECK_LIVE_FRAME (frame
);
3438 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3439 resource
, class, Qnil
, Qnil
);
3445 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3446 If VALUE is "on" or "true", return t. If VALUE is "off" or
3447 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3448 error; if SIGNAL_P is zero, return 0. */
3451 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3453 Lisp_Object result
= make_number (0);
3455 xassert (STRINGP (value
));
3457 if (xstrcasecmp (SSDATA (value
), "on") == 0
3458 || xstrcasecmp (SSDATA (value
), "true") == 0)
3460 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3461 || xstrcasecmp (SSDATA (value
), "false") == 0)
3463 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3464 result
= Qunspecified
;
3466 signal_error ("Invalid face attribute value from X resource", value
);
3472 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3473 Finternal_set_lisp_face_attribute_from_resource
,
3474 Sinternal_set_lisp_face_attribute_from_resource
,
3475 3, 4, 0, doc
: /* */)
3476 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3478 CHECK_SYMBOL (face
);
3479 CHECK_SYMBOL (attr
);
3480 CHECK_STRING (value
);
3482 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3483 value
= Qunspecified
;
3484 else if (EQ (attr
, QCheight
))
3486 value
= Fstring_to_number (value
, make_number (10));
3487 if (XINT (value
) <= 0)
3488 signal_error ("Invalid face height from X resource", value
);
3490 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3491 value
= face_boolean_x_resource_value (value
, 1);
3492 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3493 value
= intern (SSDATA (value
));
3494 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3495 value
= face_boolean_x_resource_value (value
, 1);
3496 else if (EQ (attr
, QCunderline
)
3497 || EQ (attr
, QCoverline
)
3498 || EQ (attr
, QCstrike_through
))
3500 Lisp_Object boolean_value
;
3502 /* If the result of face_boolean_x_resource_value is t or nil,
3503 VALUE does NOT specify a color. */
3504 boolean_value
= face_boolean_x_resource_value (value
, 0);
3505 if (SYMBOLP (boolean_value
))
3506 value
= boolean_value
;
3508 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3509 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3511 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3514 #endif /* HAVE_WINDOW_SYSTEM */
3517 /***********************************************************************
3519 ***********************************************************************/
3521 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3523 /* Make menus on frame F appear as specified by the `menu' face. */
3526 x_update_menu_appearance (struct frame
*f
)
3528 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3532 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3536 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3537 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3538 const char *myname
= SSDATA (Vx_resource_name
);
3541 const char *popup_path
= "popup_menu";
3543 const char *popup_path
= "menu.popup";
3546 if (STRINGP (LFACE_FOREGROUND (lface
)))
3548 sprintf (line
, "%s.%s*foreground: %s",
3550 SDATA (LFACE_FOREGROUND (lface
)));
3551 XrmPutLineResource (&rdb
, line
);
3552 sprintf (line
, "%s.pane.menubar*foreground: %s",
3553 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3554 XrmPutLineResource (&rdb
, line
);
3558 if (STRINGP (LFACE_BACKGROUND (lface
)))
3560 sprintf (line
, "%s.%s*background: %s",
3562 SDATA (LFACE_BACKGROUND (lface
)));
3563 XrmPutLineResource (&rdb
, line
);
3564 sprintf (line
, "%s.pane.menubar*background: %s",
3565 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3566 XrmPutLineResource (&rdb
, line
);
3571 /* On Solaris 5.8, it's been reported that the `menu' face
3572 can be unspecified here, during startup. Why this
3573 happens remains unknown. -- cyd */
3574 && FONTP (LFACE_FONT (lface
))
3575 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3576 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3577 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3578 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3579 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3580 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3582 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3584 const char *suffix
= "List";
3587 #if defined HAVE_X_I18N
3589 const char *suffix
= "Set";
3591 const char *suffix
= "";
3598 #if defined HAVE_X_I18N
3599 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3601 char *fontsetname
= SSDATA (xlfd
);
3603 sprintf (line
, "%s.pane.menubar*font%s: %s",
3604 myname
, suffix
, fontsetname
);
3605 XrmPutLineResource (&rdb
, line
);
3606 sprintf (line
, "%s.%s*font%s: %s",
3607 myname
, popup_path
, suffix
, fontsetname
);
3608 XrmPutLineResource (&rdb
, line
);
3610 if (fontsetname
!= SSDATA (xlfd
))
3611 xfree (fontsetname
);
3615 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3616 free_frame_menubar (f
);
3620 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3623 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3624 Sface_attribute_relative_p
,
3626 doc
: /* Check whether a face attribute value is relative.
3627 Specifically, this function returns t if the attribute ATTRIBUTE
3628 with the value VALUE is relative.
3630 A relative value is one that doesn't entirely override whatever is
3631 inherited from another face. For most possible attributes,
3632 the only relative value that users see is `unspecified'.
3633 However, for :height, floating point values are also relative. */)
3634 (Lisp_Object attribute
, Lisp_Object value
)
3636 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3638 else if (EQ (attribute
, QCheight
))
3639 return INTEGERP (value
) ? Qnil
: Qt
;
3644 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3646 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3647 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3648 the result will be absolute, otherwise it will be relative. */)
3649 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3651 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3653 else if (EQ (attribute
, QCheight
))
3654 return merge_face_heights (value1
, value2
, value1
);
3660 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3661 Sinternal_get_lisp_face_attribute
,
3663 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3664 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3665 face attribute name, signal an error.
3666 If the optional argument FRAME is given, report on face SYMBOL in that
3667 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3668 frames). If FRAME is omitted or nil, use the selected frame. */)
3669 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3671 Lisp_Object lface
, value
= Qnil
;
3673 CHECK_SYMBOL (symbol
);
3674 CHECK_SYMBOL (keyword
);
3677 lface
= lface_from_face_name (NULL
, symbol
, 1);
3681 frame
= selected_frame
;
3682 CHECK_LIVE_FRAME (frame
);
3683 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3686 if (EQ (keyword
, QCfamily
))
3687 value
= LFACE_FAMILY (lface
);
3688 else if (EQ (keyword
, QCfoundry
))
3689 value
= LFACE_FOUNDRY (lface
);
3690 else if (EQ (keyword
, QCheight
))
3691 value
= LFACE_HEIGHT (lface
);
3692 else if (EQ (keyword
, QCweight
))
3693 value
= LFACE_WEIGHT (lface
);
3694 else if (EQ (keyword
, QCslant
))
3695 value
= LFACE_SLANT (lface
);
3696 else if (EQ (keyword
, QCunderline
))
3697 value
= LFACE_UNDERLINE (lface
);
3698 else if (EQ (keyword
, QCoverline
))
3699 value
= LFACE_OVERLINE (lface
);
3700 else if (EQ (keyword
, QCstrike_through
))
3701 value
= LFACE_STRIKE_THROUGH (lface
);
3702 else if (EQ (keyword
, QCbox
))
3703 value
= LFACE_BOX (lface
);
3704 else if (EQ (keyword
, QCinverse_video
)
3705 || EQ (keyword
, QCreverse_video
))
3706 value
= LFACE_INVERSE (lface
);
3707 else if (EQ (keyword
, QCforeground
))
3708 value
= LFACE_FOREGROUND (lface
);
3709 else if (EQ (keyword
, QCbackground
))
3710 value
= LFACE_BACKGROUND (lface
);
3711 else if (EQ (keyword
, QCstipple
))
3712 value
= LFACE_STIPPLE (lface
);
3713 else if (EQ (keyword
, QCwidth
))
3714 value
= LFACE_SWIDTH (lface
);
3715 else if (EQ (keyword
, QCinherit
))
3716 value
= LFACE_INHERIT (lface
);
3717 else if (EQ (keyword
, QCfont
))
3718 value
= LFACE_FONT (lface
);
3719 else if (EQ (keyword
, QCfontset
))
3720 value
= LFACE_FONTSET (lface
);
3722 signal_error ("Invalid face attribute name", keyword
);
3724 if (IGNORE_DEFFACE_P (value
))
3725 return Qunspecified
;
3731 DEFUN ("internal-lisp-face-attribute-values",
3732 Finternal_lisp_face_attribute_values
,
3733 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3734 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3735 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3738 Lisp_Object result
= Qnil
;
3740 CHECK_SYMBOL (attr
);
3742 if (EQ (attr
, QCunderline
))
3743 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3744 else if (EQ (attr
, QCoverline
))
3745 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3746 else if (EQ (attr
, QCstrike_through
))
3747 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3748 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3749 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3755 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3756 Sinternal_merge_in_global_face
, 2, 2, 0,
3757 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3758 Default face attributes override any local face attributes. */)
3759 (Lisp_Object face
, Lisp_Object frame
)
3762 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3763 struct frame
*f
= XFRAME (frame
);
3765 CHECK_LIVE_FRAME (frame
);
3766 global_lface
= lface_from_face_name (NULL
, face
, 1);
3767 local_lface
= lface_from_face_name (f
, face
, 0);
3768 if (NILP (local_lface
))
3769 local_lface
= Finternal_make_lisp_face (face
, frame
);
3771 /* Make every specified global attribute override the local one.
3772 BEWARE!! This is only used from `face-set-after-frame-default' where
3773 the local frame is defined from default specs in `face-defface-spec'
3774 and those should be overridden by global settings. Hence the strange
3775 "global before local" priority. */
3776 lvec
= XVECTOR (local_lface
)->contents
;
3777 gvec
= XVECTOR (global_lface
)->contents
;
3778 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3779 if (IGNORE_DEFFACE_P (gvec
[i
]))
3780 lvec
[i
] = Qunspecified
;
3781 else if (! UNSPECIFIEDP (gvec
[i
]))
3784 /* If the default face was changed, update the face cache and the
3785 `font' frame parameter. */
3786 if (EQ (face
, Qdefault
))
3788 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3789 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3790 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3792 /* This can be NULL (e.g., in batch mode). */
3795 /* Ensure that the face vector is fully specified by merging
3796 the previously-cached vector. */
3797 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3798 merge_face_vectors (f
, lvec
, attrs
, 0);
3799 memcpy (lvec
, attrs
, sizeof attrs
);
3800 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3802 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3803 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3804 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3805 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3806 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3807 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3808 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3811 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3812 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3816 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3817 Fmodify_frame_parameters (frame
,
3818 Fcons (Fcons (Qforeground_color
,
3819 gvec
[LFACE_FOREGROUND_INDEX
]),
3822 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3823 Fmodify_frame_parameters (frame
,
3824 Fcons (Fcons (Qbackground_color
,
3825 gvec
[LFACE_BACKGROUND_INDEX
]),
3834 /* The following function is implemented for compatibility with 20.2.
3835 The function is used in x-resolve-fonts when it is asked to
3836 return fonts with the same size as the font of a face. This is
3837 done in fontset.el. */
3839 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3840 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3841 The font name is, by default, for ASCII characters.
3842 If the optional argument FRAME is given, report on face FACE in that frame.
3843 If FRAME is t, report on the defaults for face FACE (for new frames).
3844 The font default for a face is either nil, or a list
3845 of the form (bold), (italic) or (bold italic).
3846 If FRAME is omitted or nil, use the selected frame. And, in this case,
3847 if the optional third argument CHARACTER is given,
3848 return the font name used for CHARACTER. */)
3849 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3853 Lisp_Object result
= Qnil
;
3854 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3856 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3857 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3858 result
= Fcons (Qbold
, result
);
3860 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3861 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3862 result
= Fcons (Qitalic
, result
);
3868 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3869 int face_id
= lookup_named_face (f
, face
, 1);
3870 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3874 #ifdef HAVE_WINDOW_SYSTEM
3875 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3877 CHECK_CHARACTER (character
);
3878 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3879 fface
= FACE_FROM_ID (f
, face_id
);
3882 ? fface
->font
->props
[FONT_NAME_INDEX
]
3884 #else /* !HAVE_WINDOW_SYSTEM */
3885 return build_string (FRAME_MSDOS_P (f
)
3887 : FRAME_W32_P (f
) ? "w32term"
3894 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3895 all attributes are `equal'. Tries to be fast because this function
3896 is called quite often. */
3899 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3901 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3902 and the other is specified. */
3903 if (XTYPE (v1
) != XTYPE (v2
))
3912 if (SBYTES (v1
) != SBYTES (v2
))
3915 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3922 return !NILP (Fequal (v1
, v2
));
3927 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3928 all attributes are `equal'. Tries to be fast because this function
3929 is called quite often. */
3932 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3936 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3937 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3943 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3944 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3945 doc
: /* True if FACE1 and FACE2 are equal.
3946 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3947 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3948 If FRAME is omitted or nil, use the selected frame. */)
3949 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3953 Lisp_Object lface1
, lface2
;
3958 /* Don't use check_x_frame here because this function is called
3959 before X frames exist. At that time, if FRAME is nil,
3960 selected_frame will be used which is the frame dumped with
3961 Emacs. That frame is not an X frame. */
3962 f
= frame_or_selected_frame (frame
, 2);
3964 lface1
= lface_from_face_name (f
, face1
, 1);
3965 lface2
= lface_from_face_name (f
, face2
, 1);
3966 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3967 XVECTOR (lface2
)->contents
);
3968 return equal_p
? Qt
: Qnil
;
3972 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3973 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3974 doc
: /* True if FACE has no attribute specified.
3975 If the optional argument FRAME is given, report on face FACE in that frame.
3976 If FRAME is t, report on the defaults for face FACE (for new frames).
3977 If FRAME is omitted or nil, use the selected frame. */)
3978 (Lisp_Object face
, Lisp_Object frame
)
3985 frame
= selected_frame
;
3986 CHECK_LIVE_FRAME (frame
);
3990 lface
= lface_from_face_name (NULL
, face
, 1);
3992 lface
= lface_from_face_name (f
, face
, 1);
3994 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3995 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3998 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4002 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4004 doc
: /* Return an alist of frame-local faces defined on FRAME.
4005 For internal use only. */)
4008 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4009 return f
->face_alist
;
4013 /* Return a hash code for Lisp string STRING with case ignored. Used
4014 below in computing a hash value for a Lisp face. */
4016 static inline unsigned
4017 hash_string_case_insensitive (Lisp_Object string
)
4019 const unsigned char *s
;
4021 xassert (STRINGP (string
));
4022 for (s
= SDATA (string
); *s
; ++s
)
4023 hash
= (hash
<< 1) ^ tolower (*s
);
4028 /* Return a hash code for face attribute vector V. */
4030 static inline unsigned
4031 lface_hash (Lisp_Object
*v
)
4033 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4034 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4035 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4036 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4037 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4038 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4039 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4040 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4044 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4045 considering charsets/registries). They do if they specify the same
4046 family, point size, weight, width, slant, and font. Both
4047 LFACE1 and LFACE2 must be fully-specified. */
4050 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4052 xassert (lface_fully_specified_p (lface1
)
4053 && lface_fully_specified_p (lface2
));
4054 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4055 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4056 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4057 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4058 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4059 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4060 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4061 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4062 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4063 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4064 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4065 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4066 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4067 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4073 /***********************************************************************
4075 ***********************************************************************/
4077 /* Allocate and return a new realized face for Lisp face attribute
4080 static struct face
*
4081 make_realized_face (Lisp_Object
*attr
)
4083 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4084 memset (face
, 0, sizeof *face
);
4085 face
->ascii_face
= face
;
4086 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4091 /* Free realized face FACE, including its X resources. FACE may
4095 free_realized_face (struct frame
*f
, struct face
*face
)
4099 #ifdef HAVE_WINDOW_SYSTEM
4100 if (FRAME_WINDOW_P (f
))
4102 /* Free fontset of FACE if it is ASCII face. */
4103 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4104 free_face_fontset (f
, face
);
4109 font_done_for_face (f
, face
);
4110 x_free_gc (f
, face
->gc
);
4115 free_face_colors (f
, face
);
4116 x_destroy_bitmap (f
, face
->stipple
);
4118 #endif /* HAVE_WINDOW_SYSTEM */
4125 /* Prepare face FACE for subsequent display on frame F. This
4126 allocated GCs if they haven't been allocated yet or have been freed
4127 by clearing the face cache. */
4130 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4132 #ifdef HAVE_WINDOW_SYSTEM
4133 xassert (FRAME_WINDOW_P (f
));
4138 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4140 xgcv
.foreground
= face
->foreground
;
4141 xgcv
.background
= face
->background
;
4142 #ifdef HAVE_X_WINDOWS
4143 xgcv
.graphics_exposures
= False
;
4147 #ifdef HAVE_X_WINDOWS
4150 xgcv
.fill_style
= FillOpaqueStippled
;
4151 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4152 mask
|= GCFillStyle
| GCStipple
;
4155 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4157 font_prepare_for_face (f
, face
);
4160 #endif /* HAVE_WINDOW_SYSTEM */
4164 /* Returns the `distance' between the colors X and Y. */
4167 color_distance (XColor
*x
, XColor
*y
)
4169 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4170 Quoting from that paper:
4172 This formula has results that are very close to L*u*v* (with the
4173 modified lightness curve) and, more importantly, it is a more even
4174 algorithm: it does not have a range of colours where it suddenly
4175 gives far from optimal results.
4177 See <http://www.compuphase.com/cmetric.htm> for more info. */
4179 long r
= (x
->red
- y
->red
) >> 8;
4180 long g
= (x
->green
- y
->green
) >> 8;
4181 long b
= (x
->blue
- y
->blue
) >> 8;
4182 long r_mean
= (x
->red
+ y
->red
) >> 9;
4185 (((512 + r_mean
) * r
* r
) >> 8)
4187 + (((767 - r_mean
) * b
* b
) >> 8);
4191 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4192 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4193 COLOR1 and COLOR2 may be either strings containing the color name,
4194 or lists of the form (RED GREEN BLUE).
4195 If FRAME is unspecified or nil, the current frame is used. */)
4196 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4199 XColor cdef1
, cdef2
;
4202 frame
= selected_frame
;
4203 CHECK_LIVE_FRAME (frame
);
4206 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4207 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4208 signal_error ("Invalid color", color1
);
4209 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4210 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4211 signal_error ("Invalid color", color2
);
4213 return make_number (color_distance (&cdef1
, &cdef2
));
4217 /***********************************************************************
4219 ***********************************************************************/
4221 /* Return a new face cache for frame F. */
4223 static struct face_cache
*
4224 make_face_cache (struct frame
*f
)
4226 struct face_cache
*c
;
4229 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4230 memset (c
, 0, sizeof *c
);
4231 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4232 c
->buckets
= (struct face
**) xmalloc (size
);
4233 memset (c
->buckets
, 0, size
);
4235 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4237 c
->menu_face_changed_p
= menu_face_changed_default
;
4242 /* Clear out all graphics contexts for all realized faces, except for
4243 the basic faces. This should be done from time to time just to avoid
4244 keeping too many graphics contexts that are no longer needed. */
4247 clear_face_gcs (struct face_cache
*c
)
4249 if (c
&& FRAME_WINDOW_P (c
->f
))
4251 #ifdef HAVE_WINDOW_SYSTEM
4253 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4255 struct face
*face
= c
->faces_by_id
[i
];
4256 if (face
&& face
->gc
)
4260 font_done_for_face (c
->f
, face
);
4261 x_free_gc (c
->f
, face
->gc
);
4266 #endif /* HAVE_WINDOW_SYSTEM */
4271 /* Free all realized faces in face cache C, including basic faces.
4272 C may be null. If faces are freed, make sure the frame's current
4273 matrix is marked invalid, so that a display caused by an expose
4274 event doesn't try to use faces we destroyed. */
4277 free_realized_faces (struct face_cache
*c
)
4282 struct frame
*f
= c
->f
;
4284 /* We must block input here because we can't process X events
4285 safely while only some faces are freed, or when the frame's
4286 current matrix still references freed faces. */
4289 for (i
= 0; i
< c
->used
; ++i
)
4291 free_realized_face (f
, c
->faces_by_id
[i
]);
4292 c
->faces_by_id
[i
] = NULL
;
4296 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4297 memset (c
->buckets
, 0, size
);
4299 /* Must do a thorough redisplay the next time. Mark current
4300 matrices as invalid because they will reference faces freed
4301 above. This function is also called when a frame is
4302 destroyed. In this case, the root window of F is nil. */
4303 if (WINDOWP (f
->root_window
))
4305 clear_current_matrices (f
);
4306 ++windows_or_buffers_changed
;
4314 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4315 This is done after attributes of a named face have been changed,
4316 because we can't tell which realized faces depend on that face. */
4319 free_all_realized_faces (Lisp_Object frame
)
4324 FOR_EACH_FRAME (rest
, frame
)
4325 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4328 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4332 /* Free face cache C and faces in it, including their X resources. */
4335 free_face_cache (struct face_cache
*c
)
4339 free_realized_faces (c
);
4341 xfree (c
->faces_by_id
);
4347 /* Cache realized face FACE in face cache C. HASH is the hash value
4348 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4349 FACE), insert the new face to the beginning of the collision list
4350 of the face hash table of C. Otherwise, add the new face to the
4351 end of the collision list. This way, lookup_face can quickly find
4352 that a requested face is not cached. */
4355 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4357 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4361 if (face
->ascii_face
!= face
)
4363 struct face
*last
= c
->buckets
[i
];
4374 c
->buckets
[i
] = face
;
4375 face
->prev
= face
->next
= NULL
;
4381 face
->next
= c
->buckets
[i
];
4383 face
->next
->prev
= face
;
4384 c
->buckets
[i
] = face
;
4387 /* Find a free slot in C->faces_by_id and use the index of the free
4388 slot as FACE->id. */
4389 for (i
= 0; i
< c
->used
; ++i
)
4390 if (c
->faces_by_id
[i
] == NULL
)
4395 /* Check that FACE got a unique id. */
4400 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4401 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4407 #endif /* GLYPH_DEBUG */
4409 /* Maybe enlarge C->faces_by_id. */
4412 if (c
->used
== c
->size
)
4415 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4416 if (new_size
== c
->size
)
4417 abort (); /* Alternatives? ++kfs */
4418 sz
= new_size
* sizeof *c
->faces_by_id
;
4419 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4425 c
->faces_by_id
[i
] = face
;
4429 /* Remove face FACE from cache C. */
4432 uncache_face (struct face_cache
*c
, struct face
*face
)
4434 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4437 face
->prev
->next
= face
->next
;
4439 c
->buckets
[i
] = face
->next
;
4442 face
->next
->prev
= face
->prev
;
4444 c
->faces_by_id
[face
->id
] = NULL
;
4445 if (face
->id
== c
->used
)
4450 /* Look up a realized face with face attributes ATTR in the face cache
4451 of frame F. The face will be used to display ASCII characters.
4452 Value is the ID of the face found. If no suitable face is found,
4453 realize a new one. */
4456 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4458 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4463 xassert (cache
!= NULL
);
4464 check_lface_attrs (attr
);
4466 /* Look up ATTR in the face cache. */
4467 hash
= lface_hash (attr
);
4468 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4470 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4472 if (face
->ascii_face
!= face
)
4474 /* There's no more ASCII face. */
4478 if (face
->hash
== hash
4479 && lface_equal_p (face
->lface
, attr
))
4483 /* If not found, realize a new face. */
4485 face
= realize_face (cache
, attr
, -1);
4488 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4489 #endif /* GLYPH_DEBUG */
4494 #ifdef HAVE_WINDOW_SYSTEM
4495 /* Look up a realized face that has the same attributes as BASE_FACE
4496 except for the font in the face cache of frame F. If FONT-OBJECT
4497 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4498 the face has no font. Value is the ID of the face found. If no
4499 suitable face is found, realize a new one. */
4502 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4504 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4509 xassert (cache
!= NULL
);
4510 base_face
= base_face
->ascii_face
;
4511 hash
= lface_hash (base_face
->lface
);
4512 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4514 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4516 if (face
->ascii_face
== face
)
4518 if (face
->ascii_face
== base_face
4519 && face
->font
== (NILP (font_object
) ? NULL
4520 : XFONT_OBJECT (font_object
))
4521 && lface_equal_p (face
->lface
, base_face
->lface
))
4525 /* If not found, realize a new face. */
4526 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4529 #endif /* HAVE_WINDOW_SYSTEM */
4531 /* Return the face id of the realized face for named face SYMBOL on
4532 frame F suitable for displaying ASCII characters. Value is -1 if
4533 the face couldn't be determined, which might happen if the default
4534 face isn't realized and cannot be realized. */
4537 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4539 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4540 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4541 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4543 if (default_face
== NULL
)
4545 if (!realize_basic_faces (f
))
4547 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4548 if (default_face
== NULL
)
4549 abort (); /* realize_basic_faces must have set it up */
4552 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4555 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4556 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4558 return lookup_face (f
, attrs
);
4562 /* Return the display face-id of the basic face who's canonical face-id
4563 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4564 basic face has bee remapped via Vface_remapping_alist. This function is
4565 conservative: if something goes wrong, it will simply return FACE_ID
4566 rather than signal an error. */
4569 lookup_basic_face (struct frame
*f
, int face_id
)
4571 Lisp_Object name
, mapping
;
4572 int remapped_face_id
;
4574 if (NILP (Vface_remapping_alist
))
4575 return face_id
; /* Nothing to do. */
4579 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4580 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4581 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4582 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4583 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4584 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4585 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4586 case BORDER_FACE_ID
: name
= Qborder
; break;
4587 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4588 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4589 case MENU_FACE_ID
: name
= Qmenu
; break;
4592 abort (); /* the caller is supposed to pass us a basic face id */
4595 /* Do a quick scan through Vface_remapping_alist, and return immediately
4596 if there is no remapping for face NAME. This is just an optimization
4597 for the very common no-remapping case. */
4598 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4600 return face_id
; /* Give up. */
4602 /* If there is a remapping entry, lookup the face using NAME, which will
4603 handle the remapping too. */
4604 remapped_face_id
= lookup_named_face (f
, name
, 0);
4605 if (remapped_face_id
< 0)
4606 return face_id
; /* Give up. */
4608 return remapped_face_id
;
4612 /* Return a face for charset ASCII that is like the face with id
4613 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4614 STEPS < 0 means larger. Value is the id of the face. */
4617 smaller_face (struct frame
*f
, int face_id
, int steps
)
4619 #ifdef HAVE_WINDOW_SYSTEM
4621 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4622 int pt
, last_pt
, last_height
;
4625 struct face
*new_face
;
4627 /* If not called for an X frame, just return the original face. */
4628 if (FRAME_TERMCAP_P (f
))
4631 /* Try in increments of 1/2 pt. */
4632 delta
= steps
< 0 ? 5 : -5;
4633 steps
= eabs (steps
);
4635 face
= FACE_FROM_ID (f
, face_id
);
4636 memcpy (attrs
, face
->lface
, sizeof attrs
);
4637 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4638 new_face_id
= face_id
;
4639 last_height
= FONT_HEIGHT (face
->font
);
4643 /* Give up if we cannot find a font within 10pt. */
4644 && eabs (last_pt
- pt
) < 100)
4646 /* Look up a face for a slightly smaller/larger font. */
4648 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4649 new_face_id
= lookup_face (f
, attrs
);
4650 new_face
= FACE_FROM_ID (f
, new_face_id
);
4652 /* If height changes, count that as one step. */
4653 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4654 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4657 last_height
= FONT_HEIGHT (new_face
->font
);
4664 #else /* not HAVE_WINDOW_SYSTEM */
4668 #endif /* not HAVE_WINDOW_SYSTEM */
4672 /* Return a face for charset ASCII that is like the face with id
4673 FACE_ID on frame F, but has height HEIGHT. */
4676 face_with_height (struct frame
*f
, int face_id
, int height
)
4678 #ifdef HAVE_WINDOW_SYSTEM
4680 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4682 if (FRAME_TERMCAP_P (f
)
4686 face
= FACE_FROM_ID (f
, face_id
);
4687 memcpy (attrs
, face
->lface
, sizeof attrs
);
4688 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4689 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4690 face_id
= lookup_face (f
, attrs
);
4691 #endif /* HAVE_WINDOW_SYSTEM */
4697 /* Return the face id of the realized face for named face SYMBOL on
4698 frame F suitable for displaying ASCII characters, and use
4699 attributes of the face FACE_ID for attributes that aren't
4700 completely specified by SYMBOL. This is like lookup_named_face,
4701 except that the default attributes come from FACE_ID, not from the
4702 default face. FACE_ID is assumed to be already realized. */
4705 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
, int signal_p
)
4707 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4708 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4709 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4714 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4717 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4718 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4719 return lookup_face (f
, attrs
);
4722 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4723 Sface_attributes_as_vector
, 1, 1, 0,
4724 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4728 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4730 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4737 /***********************************************************************
4738 Face capability testing
4739 ***********************************************************************/
4742 /* If the distance (as returned by color_distance) between two colors is
4743 less than this, then they are considered the same, for determining
4744 whether a color is supported or not. The range of values is 0-65535. */
4746 #define TTY_SAME_COLOR_THRESHOLD 10000
4748 #ifdef HAVE_WINDOW_SYSTEM
4750 /* Return non-zero if all the face attributes in ATTRS are supported
4751 on the window-system frame F.
4753 The definition of `supported' is somewhat heuristic, but basically means
4754 that a face containing all the attributes in ATTRS, when merged with the
4755 default face for display, can be represented in a way that's
4757 \(1) different in appearance than the default face, and
4758 \(2) `close in spirit' to what the attributes specify, if not exact. */
4761 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4763 Lisp_Object
*def_attrs
= def_face
->lface
;
4765 /* Check that other specified attributes are different that the default
4767 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4768 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4769 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4770 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4771 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4772 def_attrs
[LFACE_INVERSE_INDEX
]))
4773 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4774 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4775 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4776 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4777 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4778 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4779 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4780 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4781 def_attrs
[LFACE_STIPPLE_INDEX
]))
4782 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4783 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4784 def_attrs
[LFACE_OVERLINE_INDEX
]))
4785 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4786 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4787 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4788 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4789 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4790 def_attrs
[LFACE_BOX_INDEX
])))
4793 /* Check font-related attributes, as those are the most commonly
4794 "unsupported" on a window-system (because of missing fonts). */
4795 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4796 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4797 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4798 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4799 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4800 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4804 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4807 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4809 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4811 face_id
= lookup_face (f
, merged_attrs
);
4812 face
= FACE_FROM_ID (f
, face_id
);
4815 error ("Cannot make face");
4817 /* If the font is the same, or no font is found, then not
4819 if (face
->font
== def_face
->font
4822 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4823 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4827 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4828 || face
->font
->driver
->case_sensitive
)
4830 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4831 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4832 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4833 s2
, make_number (0), Qnil
, Qt
), Qt
))
4839 /* Everything checks out, this face is supported. */
4843 #endif /* HAVE_WINDOW_SYSTEM */
4845 /* Return non-zero if all the face attributes in ATTRS are supported
4848 The definition of `supported' is somewhat heuristic, but basically means
4849 that a face containing all the attributes in ATTRS, when merged
4850 with the default face for display, can be represented in a way that's
4852 \(1) different in appearance than the default face, and
4853 \(2) `close in spirit' to what the attributes specify, if not exact.
4855 Point (2) implies that a `:weight black' attribute will be satisfied
4856 by any terminal that can display bold, and a `:foreground "yellow"' as
4857 long as the terminal can display a yellowish color, but `:slant italic'
4858 will _not_ be satisfied by the tty display code's automatic
4859 substitution of a `dim' face for italic. */
4862 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4865 Lisp_Object val
, fg
, bg
;
4866 XColor fg_tty_color
, fg_std_color
;
4867 XColor bg_tty_color
, bg_std_color
;
4868 unsigned test_caps
= 0;
4869 Lisp_Object
*def_attrs
= def_face
->lface
;
4872 /* First check some easy-to-check stuff; ttys support none of the
4873 following attributes, so we can just return false if any are requested
4874 (even if `nominal' values are specified, we should still return false,
4875 as that will be the same value that the default face uses). We
4876 consider :slant unsupportable on ttys, even though the face code
4877 actually `fakes' them using a dim attribute if possible. This is
4878 because the faked result is too different from what the face
4880 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4881 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4882 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4883 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4884 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4885 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4886 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4887 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4888 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
4892 /* Test for terminal `capabilities' (non-color character attributes). */
4894 /* font weight (bold/dim) */
4895 val
= attrs
[LFACE_WEIGHT_INDEX
];
4896 if (!UNSPECIFIEDP (val
)
4897 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4899 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4903 if (def_weight
> 100)
4904 return 0; /* same as default */
4905 test_caps
= TTY_CAP_BOLD
;
4907 else if (weight
< 100)
4909 if (def_weight
< 100)
4910 return 0; /* same as default */
4911 test_caps
= TTY_CAP_DIM
;
4913 else if (def_weight
== 100)
4914 return 0; /* same as default */
4918 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4919 if (!UNSPECIFIEDP (val
))
4922 return 0; /* ttys can't use colored underlines */
4923 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4924 return 0; /* same as default */
4926 test_caps
|= TTY_CAP_UNDERLINE
;
4930 val
= attrs
[LFACE_INVERSE_INDEX
];
4931 if (!UNSPECIFIEDP (val
))
4933 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4934 return 0; /* same as default */
4936 test_caps
|= TTY_CAP_INVERSE
;
4940 /* Color testing. */
4942 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4943 we use them when calling `tty_capable_p' below, even if the face
4944 specifies no colors. */
4945 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4946 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4948 /* Check if foreground color is close enough. */
4949 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4952 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4954 if (face_attr_equal_p (fg
, def_fg
))
4955 return 0; /* same as default */
4956 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4957 return 0; /* not a valid color */
4958 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4959 > TTY_SAME_COLOR_THRESHOLD
)
4960 return 0; /* displayed color is too different */
4962 /* Make sure the color is really different than the default. */
4964 XColor def_fg_color
;
4965 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4966 && (color_distance (&fg_tty_color
, &def_fg_color
)
4967 <= TTY_SAME_COLOR_THRESHOLD
))
4972 /* Check if background color is close enough. */
4973 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4976 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4978 if (face_attr_equal_p (bg
, def_bg
))
4979 return 0; /* same as default */
4980 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4981 return 0; /* not a valid color */
4982 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4983 > TTY_SAME_COLOR_THRESHOLD
)
4984 return 0; /* displayed color is too different */
4986 /* Make sure the color is really different than the default. */
4988 XColor def_bg_color
;
4989 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4990 && (color_distance (&bg_tty_color
, &def_bg_color
)
4991 <= TTY_SAME_COLOR_THRESHOLD
))
4996 /* If both foreground and background are requested, see if the
4997 distance between them is OK. We just check to see if the distance
4998 between the tty's foreground and background is close enough to the
4999 distance between the standard foreground and background. */
5000 if (STRINGP (fg
) && STRINGP (bg
))
5003 = (color_distance (&fg_std_color
, &bg_std_color
)
5004 - color_distance (&fg_tty_color
, &bg_tty_color
));
5005 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5006 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5011 /* See if the capabilities we selected above are supported, with the
5013 if (test_caps
!= 0 &&
5014 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5018 /* Hmmm, everything checks out, this terminal must support this face. */
5023 DEFUN ("display-supports-face-attributes-p",
5024 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5026 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5027 The optional argument DISPLAY can be a display name, a frame, or
5028 nil (meaning the selected frame's display).
5030 The definition of `supported' is somewhat heuristic, but basically means
5031 that a face containing all the attributes in ATTRIBUTES, when merged
5032 with the default face for display, can be represented in a way that's
5034 \(1) different in appearance than the default face, and
5035 \(2) `close in spirit' to what the attributes specify, if not exact.
5037 Point (2) implies that a `:weight black' attribute will be satisfied by
5038 any display that can display bold, and a `:foreground \"yellow\"' as long
5039 as it can display a yellowish color, but `:slant italic' will _not_ be
5040 satisfied by the tty display code's automatic substitution of a `dim'
5041 face for italic. */)
5042 (Lisp_Object attributes
, Lisp_Object display
)
5044 int supports
= 0, i
;
5047 struct face
*def_face
;
5048 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5050 if (noninteractive
|| !initialized
)
5051 /* We may not be able to access low-level face information in batch
5052 mode, or before being dumped, and this function is not going to
5053 be very useful in those cases anyway, so just give up. */
5057 frame
= selected_frame
;
5058 else if (FRAMEP (display
))
5062 /* Find any frame on DISPLAY. */
5063 Lisp_Object fl_tail
;
5066 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5068 frame
= XCAR (fl_tail
);
5069 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5070 XFRAME (frame
)->param_alist
)),
5076 CHECK_LIVE_FRAME (frame
);
5079 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5080 attrs
[i
] = Qunspecified
;
5081 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5083 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5084 if (def_face
== NULL
)
5086 if (! realize_basic_faces (f
))
5087 error ("Cannot realize default face");
5088 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5089 if (def_face
== NULL
)
5090 abort (); /* realize_basic_faces must have set it up */
5093 /* Dispatch to the appropriate handler. */
5094 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5095 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5096 #ifdef HAVE_WINDOW_SYSTEM
5098 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5101 return supports
? Qt
: Qnil
;
5105 /***********************************************************************
5107 ***********************************************************************/
5109 DEFUN ("internal-set-font-selection-order",
5110 Finternal_set_font_selection_order
,
5111 Sinternal_set_font_selection_order
, 1, 1, 0,
5112 doc
: /* Set font selection order for face font selection to ORDER.
5113 ORDER must be a list of length 4 containing the symbols `:width',
5114 `:height', `:weight', and `:slant'. Face attributes appearing
5115 first in ORDER are matched first, e.g. if `:height' appears before
5116 `:weight' in ORDER, font selection first tries to find a font with
5117 a suitable height, and then tries to match the font weight.
5123 int indices
[DIM (font_sort_order
)];
5126 memset (indices
, 0, sizeof indices
);
5130 CONSP (list
) && i
< DIM (indices
);
5131 list
= XCDR (list
), ++i
)
5133 Lisp_Object attr
= XCAR (list
);
5136 if (EQ (attr
, QCwidth
))
5138 else if (EQ (attr
, QCheight
))
5139 xlfd
= XLFD_POINT_SIZE
;
5140 else if (EQ (attr
, QCweight
))
5142 else if (EQ (attr
, QCslant
))
5147 if (indices
[i
] != 0)
5152 if (!NILP (list
) || i
!= DIM (indices
))
5153 signal_error ("Invalid font sort order", order
);
5154 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5155 if (indices
[i
] == 0)
5156 signal_error ("Invalid font sort order", order
);
5158 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5160 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5161 free_all_realized_faces (Qnil
);
5164 font_update_sort_order (font_sort_order
);
5170 DEFUN ("internal-set-alternative-font-family-alist",
5171 Finternal_set_alternative_font_family_alist
,
5172 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5173 doc
: /* Define alternative font families to try in face font selection.
5174 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5175 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5176 be found. Value is ALIST. */)
5179 Lisp_Object entry
, tail
, tail2
;
5182 alist
= Fcopy_sequence (alist
);
5183 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5185 entry
= XCAR (tail
);
5187 entry
= Fcopy_sequence (entry
);
5188 XSETCAR (tail
, entry
);
5189 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5190 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5193 Vface_alternative_font_family_alist
= alist
;
5194 free_all_realized_faces (Qnil
);
5199 DEFUN ("internal-set-alternative-font-registry-alist",
5200 Finternal_set_alternative_font_registry_alist
,
5201 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5202 doc
: /* Define alternative font registries to try in face font selection.
5203 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5204 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5205 be found. Value is ALIST. */)
5208 Lisp_Object entry
, tail
, tail2
;
5211 alist
= Fcopy_sequence (alist
);
5212 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5214 entry
= XCAR (tail
);
5216 entry
= Fcopy_sequence (entry
);
5217 XSETCAR (tail
, entry
);
5218 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5219 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5221 Vface_alternative_font_registry_alist
= alist
;
5222 free_all_realized_faces (Qnil
);
5227 #ifdef HAVE_WINDOW_SYSTEM
5229 /* Return the fontset id of the base fontset name or alias name given
5230 by the fontset attribute of ATTRS. Value is -1 if the fontset
5231 attribute of ATTRS doesn't name a fontset. */
5234 face_fontset (Lisp_Object
*attrs
)
5238 name
= attrs
[LFACE_FONTSET_INDEX
];
5239 if (!STRINGP (name
))
5241 return fs_query_fontset (name
, 0);
5244 #endif /* HAVE_WINDOW_SYSTEM */
5248 /***********************************************************************
5250 ***********************************************************************/
5252 /* Realize basic faces on frame F. Value is zero if frame parameters
5253 of F don't contain enough information needed to realize the default
5257 realize_basic_faces (struct frame
*f
)
5260 int count
= SPECPDL_INDEX ();
5262 /* Block input here so that we won't be surprised by an X expose
5263 event, for instance, without having the faces set up. */
5265 specbind (Qscalable_fonts_allowed
, Qt
);
5267 if (realize_default_face (f
))
5269 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5270 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5271 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5272 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5273 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5274 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5275 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5276 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5277 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5278 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5279 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5281 /* Reflect changes in the `menu' face in menu bars. */
5282 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5284 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5285 #ifdef USE_X_TOOLKIT
5286 if (FRAME_WINDOW_P (f
))
5287 x_update_menu_appearance (f
);
5294 unbind_to (count
, Qnil
);
5300 /* Realize the default face on frame F. If the face is not fully
5301 specified, make it fully-specified. Attributes of the default face
5302 that are not explicitly specified are taken from frame parameters. */
5305 realize_default_face (struct frame
*f
)
5307 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5309 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5312 /* If the `default' face is not yet known, create it. */
5313 lface
= lface_from_face_name (f
, Qdefault
, 0);
5317 XSETFRAME (frame
, f
);
5318 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5321 #ifdef HAVE_WINDOW_SYSTEM
5322 if (FRAME_WINDOW_P (f
))
5324 Lisp_Object font_object
;
5326 XSETFONT (font_object
, FRAME_FONT (f
));
5327 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5328 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5329 f
->default_face_done_p
= 1;
5331 #endif /* HAVE_WINDOW_SYSTEM */
5333 if (!FRAME_WINDOW_P (f
))
5335 LFACE_FAMILY (lface
) = build_string ("default");
5336 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5337 LFACE_SWIDTH (lface
) = Qnormal
;
5338 LFACE_HEIGHT (lface
) = make_number (1);
5339 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5340 LFACE_WEIGHT (lface
) = Qnormal
;
5341 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5342 LFACE_SLANT (lface
) = Qnormal
;
5343 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5344 LFACE_FONTSET (lface
) = Qnil
;
5347 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5348 LFACE_UNDERLINE (lface
) = Qnil
;
5350 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5351 LFACE_OVERLINE (lface
) = Qnil
;
5353 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5354 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5356 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5357 LFACE_BOX (lface
) = Qnil
;
5359 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5360 LFACE_INVERSE (lface
) = Qnil
;
5362 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5364 /* This function is called so early that colors are not yet
5365 set in the frame parameter list. */
5366 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5368 if (CONSP (color
) && STRINGP (XCDR (color
)))
5369 LFACE_FOREGROUND (lface
) = XCDR (color
);
5370 else if (FRAME_WINDOW_P (f
))
5372 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5373 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5378 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5380 /* This function is called so early that colors are not yet
5381 set in the frame parameter list. */
5382 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5383 if (CONSP (color
) && STRINGP (XCDR (color
)))
5384 LFACE_BACKGROUND (lface
) = XCDR (color
);
5385 else if (FRAME_WINDOW_P (f
))
5387 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5388 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5393 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5394 LFACE_STIPPLE (lface
) = Qnil
;
5396 /* Realize the face; it must be fully-specified now. */
5397 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5398 check_lface (lface
);
5399 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5400 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5402 #ifdef HAVE_WINDOW_SYSTEM
5403 #ifdef HAVE_X_WINDOWS
5404 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5406 /* This can happen when making a frame on a display that does
5407 not support the default font. */
5411 /* Otherwise, the font specified for the frame was not
5412 acceptable as a font for the default face (perhaps because
5413 auto-scaled fonts are rejected), so we must adjust the frame
5415 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5417 #endif /* HAVE_X_WINDOWS */
5418 #endif /* HAVE_WINDOW_SYSTEM */
5423 /* Realize basic faces other than the default face in face cache C.
5424 SYMBOL is the face name, ID is the face id the realized face must
5425 have. The default face must have been realized already. */
5428 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5430 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5431 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5432 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5433 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5435 /* The default face must exist and be fully specified. */
5436 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5437 check_lface_attrs (attrs
);
5438 xassert (lface_fully_specified_p (attrs
));
5440 /* If SYMBOL isn't know as a face, create it. */
5444 XSETFRAME (frame
, f
);
5445 lface
= Finternal_make_lisp_face (symbol
, frame
);
5448 /* Merge SYMBOL's face with the default face. */
5449 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5450 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5452 /* Realize the face. */
5453 realize_face (c
, attrs
, id
);
5457 /* Realize the fully-specified face with attributes ATTRS in face
5458 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5459 non-negative, it is an ID of face to remove before caching the new
5460 face. Value is a pointer to the newly created realized face. */
5462 static struct face
*
5463 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5467 /* LFACE must be fully specified. */
5468 xassert (cache
!= NULL
);
5469 check_lface_attrs (attrs
);
5471 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5473 /* Remove the former face. */
5474 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5475 uncache_face (cache
, former_face
);
5476 free_realized_face (cache
->f
, former_face
);
5477 SET_FRAME_GARBAGED (cache
->f
);
5480 if (FRAME_WINDOW_P (cache
->f
))
5481 face
= realize_x_face (cache
, attrs
);
5482 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5483 face
= realize_tty_face (cache
, attrs
);
5484 else if (FRAME_INITIAL_P (cache
->f
))
5486 /* Create a dummy face. */
5487 face
= make_realized_face (attrs
);
5492 /* Insert the new face. */
5493 cache_face (cache
, face
, lface_hash (attrs
));
5498 #ifdef HAVE_WINDOW_SYSTEM
5499 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5500 same attributes as BASE_FACE except for the font on frame F.
5501 FONT-OBJECT may be nil, in which case, realized a face of
5504 static struct face
*
5505 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
5507 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5510 face
= (struct face
*) xmalloc (sizeof *face
);
5515 = (! NILP (font_object
)
5516 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5517 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5519 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5520 face
->colors_copied_bitwise_p
= 1;
5521 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5524 cache_face (cache
, face
, face
->hash
);
5528 #endif /* HAVE_WINDOW_SYSTEM */
5531 /* Realize the fully-specified face with attributes ATTRS in face
5532 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5533 the new face doesn't share font with the default face, a fontname
5534 is allocated from the heap and set in `font_name' of the new face,
5535 but it is not yet loaded here. Value is a pointer to the newly
5536 created realized face. */
5538 static struct face
*
5539 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5541 struct face
*face
= NULL
;
5542 #ifdef HAVE_WINDOW_SYSTEM
5543 struct face
*default_face
;
5545 Lisp_Object stipple
, overline
, strike_through
, box
;
5547 xassert (FRAME_WINDOW_P (cache
->f
));
5549 /* Allocate a new realized face. */
5550 face
= make_realized_face (attrs
);
5551 face
->ascii_face
= face
;
5555 /* Determine the font to use. Most of the time, the font will be
5556 the same as the font of the default face, so try that first. */
5557 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5559 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5561 face
->font
= default_face
->font
;
5563 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5567 /* If the face attribute ATTRS specifies a fontset, use it as
5568 the base of a new realized fontset. Otherwise, use the same
5569 base fontset as of the default face. The base determines
5570 registry and encoding of a font. It may also determine
5571 foundry and family. The other fields of font name pattern
5572 are constructed from ATTRS. */
5573 int fontset
= face_fontset (attrs
);
5575 /* If we are realizing the default face, ATTRS should specify a
5576 fontset. In other words, if FONTSET is -1, we are not
5577 realizing the default face, thus the default face should have
5578 already been realized. */
5582 fontset
= default_face
->fontset
;
5586 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5587 attrs
[LFACE_FONT_INDEX
]
5588 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5589 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5591 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5592 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5602 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5603 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5604 face
->overstrike
= 1;
5606 /* Load colors, and set remaining attributes. */
5608 load_face_colors (f
, face
, attrs
);
5611 box
= attrs
[LFACE_BOX_INDEX
];
5614 /* A simple box of line width 1 drawn in color given by
5616 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5618 face
->box
= FACE_SIMPLE_BOX
;
5619 face
->box_line_width
= 1;
5621 else if (INTEGERP (box
))
5623 /* Simple box of specified line width in foreground color of the
5625 xassert (XINT (box
) != 0);
5626 face
->box
= FACE_SIMPLE_BOX
;
5627 face
->box_line_width
= XINT (box
);
5628 face
->box_color
= face
->foreground
;
5629 face
->box_color_defaulted_p
= 1;
5631 else if (CONSP (box
))
5633 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5634 being one of `raised' or `sunken'. */
5635 face
->box
= FACE_SIMPLE_BOX
;
5636 face
->box_color
= face
->foreground
;
5637 face
->box_color_defaulted_p
= 1;
5638 face
->box_line_width
= 1;
5642 Lisp_Object keyword
, value
;
5644 keyword
= XCAR (box
);
5652 if (EQ (keyword
, QCline_width
))
5654 if (INTEGERP (value
) && XINT (value
) != 0)
5655 face
->box_line_width
= XINT (value
);
5657 else if (EQ (keyword
, QCcolor
))
5659 if (STRINGP (value
))
5661 face
->box_color
= load_color (f
, face
, value
,
5663 face
->use_box_color_for_shadows_p
= 1;
5666 else if (EQ (keyword
, QCstyle
))
5668 if (EQ (value
, Qreleased_button
))
5669 face
->box
= FACE_RAISED_BOX
;
5670 else if (EQ (value
, Qpressed_button
))
5671 face
->box
= FACE_SUNKEN_BOX
;
5676 /* Text underline, overline, strike-through. */
5678 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5680 /* Use default color (same as foreground color). */
5681 face
->underline_p
= 1;
5682 face
->underline_defaulted_p
= 1;
5683 face
->underline_color
= 0;
5685 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5687 /* Use specified color. */
5688 face
->underline_p
= 1;
5689 face
->underline_defaulted_p
= 0;
5690 face
->underline_color
5691 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5692 LFACE_UNDERLINE_INDEX
);
5694 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5696 face
->underline_p
= 0;
5697 face
->underline_defaulted_p
= 0;
5698 face
->underline_color
= 0;
5701 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5702 if (STRINGP (overline
))
5704 face
->overline_color
5705 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5706 LFACE_OVERLINE_INDEX
);
5707 face
->overline_p
= 1;
5709 else if (EQ (overline
, Qt
))
5711 face
->overline_color
= face
->foreground
;
5712 face
->overline_color_defaulted_p
= 1;
5713 face
->overline_p
= 1;
5716 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5717 if (STRINGP (strike_through
))
5719 face
->strike_through_color
5720 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5721 LFACE_STRIKE_THROUGH_INDEX
);
5722 face
->strike_through_p
= 1;
5724 else if (EQ (strike_through
, Qt
))
5726 face
->strike_through_color
= face
->foreground
;
5727 face
->strike_through_color_defaulted_p
= 1;
5728 face
->strike_through_p
= 1;
5731 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5732 if (!NILP (stipple
))
5733 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5734 #endif /* HAVE_WINDOW_SYSTEM */
5740 /* Map a specified color of face FACE on frame F to a tty color index.
5741 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5742 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5743 default foreground/background colors. */
5746 map_tty_color (struct frame
*f
, struct face
*face
, enum lface_attribute_index idx
, int *defaulted
)
5748 Lisp_Object frame
, color
, def
;
5749 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5750 unsigned long default_pixel
=
5751 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5752 unsigned long pixel
= default_pixel
;
5754 unsigned long default_other_pixel
=
5755 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5758 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5760 XSETFRAME (frame
, f
);
5761 color
= face
->lface
[idx
];
5765 && CONSP (Vtty_defined_color_alist
)
5766 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5769 /* Associations in tty-defined-color-alist are of the form
5770 (NAME INDEX R G B). We need the INDEX part. */
5771 pixel
= XINT (XCAR (XCDR (def
)));
5774 if (pixel
== default_pixel
&& STRINGP (color
))
5776 pixel
= load_color (f
, face
, color
, idx
);
5779 /* If the foreground of the default face is the default color,
5780 use the foreground color defined by the frame. */
5781 if (FRAME_MSDOS_P (f
))
5783 if (pixel
== default_pixel
5784 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5787 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5789 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5790 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5793 else if (pixel
== default_other_pixel
)
5796 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5798 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5799 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5807 face
->foreground
= pixel
;
5809 face
->background
= pixel
;
5813 /* Realize the fully-specified face with attributes ATTRS in face
5814 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5815 Value is a pointer to the newly created realized face. */
5817 static struct face
*
5818 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5822 int face_colors_defaulted
= 0;
5823 struct frame
*f
= cache
->f
;
5825 /* Frame must be a termcap frame. */
5826 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5828 /* Allocate a new realized face. */
5829 face
= make_realized_face (attrs
);
5831 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5834 /* Map face attributes to TTY appearances. We map slant to
5835 dimmed text because we want italic text to appear differently
5836 and because dimmed text is probably used infrequently. */
5837 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5838 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5840 face
->tty_bold_p
= 1;
5841 if (weight
< 100 || slant
!= 100)
5842 face
->tty_dim_p
= 1;
5843 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5844 face
->tty_underline_p
= 1;
5845 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5846 face
->tty_reverse_p
= 1;
5848 /* Map color names to color indices. */
5849 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5850 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5852 /* Swap colors if face is inverse-video. If the colors are taken
5853 from the frame colors, they are already inverted, since the
5854 frame-creation function calls x-handle-reverse-video. */
5855 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5857 unsigned long tem
= face
->foreground
;
5858 face
->foreground
= face
->background
;
5859 face
->background
= tem
;
5862 if (tty_suppress_bold_inverse_default_colors_p
5864 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5865 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5866 face
->tty_bold_p
= 0;
5872 DEFUN ("tty-suppress-bold-inverse-default-colors",
5873 Ftty_suppress_bold_inverse_default_colors
,
5874 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5875 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5876 SUPPRESS non-nil means suppress it.
5877 This affects bold faces on TTYs whose foreground is the default background
5878 color of the display and whose background is the default foreground color.
5879 For such faces, the bold face attribute is ignored if this variable
5881 (Lisp_Object suppress
)
5883 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5884 ++face_change_count
;
5890 /***********************************************************************
5892 ***********************************************************************/
5894 /* Return the ID of the face to use to display character CH with face
5895 property PROP on frame F in current_buffer. */
5898 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5902 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5907 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5908 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5912 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5913 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5914 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5915 merge_face_ref (f
, prop
, attrs
, 1, 0);
5916 face_id
= lookup_face (f
, attrs
);
5922 /* Return the face ID associated with buffer position POS for
5923 displaying ASCII characters. Return in *ENDPTR the position at
5924 which a different face is needed, as far as text properties and
5925 overlays are concerned. W is a window displaying current_buffer.
5927 REGION_BEG, REGION_END delimit the region, so it can be
5930 LIMIT is a position not to scan beyond. That is to limit the time
5931 this function can take.
5933 If MOUSE is non-zero, use the character's mouse-face, not its face.
5935 BASE_FACE_ID, if non-negative, specifies a base face id to use
5936 instead of DEFAULT_FACE_ID.
5938 The face returned is suitable for displaying ASCII characters. */
5941 face_at_buffer_position (struct window
*w
, EMACS_INT pos
,
5942 EMACS_INT region_beg
, EMACS_INT region_end
,
5943 EMACS_INT
*endptr
, EMACS_INT limit
,
5944 int mouse
, int base_face_id
)
5946 struct frame
*f
= XFRAME (w
->frame
);
5947 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5948 Lisp_Object prop
, position
;
5949 ptrdiff_t i
, noverlays
;
5950 Lisp_Object
*overlay_vec
;
5953 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5954 Lisp_Object limit1
, end
;
5955 struct face
*default_face
;
5957 /* W must display the current buffer. We could write this function
5958 to use the frame and buffer of W, but right now it doesn't. */
5959 /* xassert (XBUFFER (w->buffer) == current_buffer); */
5961 XSETFRAME (frame
, f
);
5962 XSETFASTINT (position
, pos
);
5965 if (pos
< region_beg
&& region_beg
< endpos
)
5966 endpos
= region_beg
;
5968 /* Get the `face' or `mouse_face' text property at POS, and
5969 determine the next position at which the property changes. */
5970 prop
= Fget_text_property (position
, propname
, w
->buffer
);
5971 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5972 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
5974 endpos
= XINT (end
);
5976 /* Look at properties from overlays. */
5978 EMACS_INT next_overlay
;
5980 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5981 if (next_overlay
< endpos
)
5982 endpos
= next_overlay
;
5987 default_face
= FACE_FROM_ID (f
, base_face_id
>= 0 ? base_face_id
5988 : NILP (Vface_remapping_alist
) ? DEFAULT_FACE_ID
5989 : lookup_basic_face (f
, DEFAULT_FACE_ID
));
5991 /* Optimize common cases where we can use the default face. */
5994 && !(pos
>= region_beg
&& pos
< region_end
))
5995 return default_face
->id
;
5997 /* Begin with attributes from the default face. */
5998 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6000 /* Merge in attributes specified via text properties. */
6002 merge_face_ref (f
, prop
, attrs
, 1, 0);
6004 /* Now merge the overlay data. */
6005 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6006 for (i
= 0; i
< noverlays
; i
++)
6011 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6013 merge_face_ref (f
, prop
, attrs
, 1, 0);
6015 oend
= OVERLAY_END (overlay_vec
[i
]);
6016 oendpos
= OVERLAY_POSITION (oend
);
6017 if (oendpos
< endpos
)
6021 /* If in the region, merge in the region face. */
6022 if (pos
>= region_beg
&& pos
< region_end
)
6024 merge_named_face (f
, Qregion
, attrs
, 0);
6026 if (region_end
< endpos
)
6027 endpos
= region_end
;
6032 /* Look up a realized face with the given face attributes,
6033 or realize a new one for ASCII characters. */
6034 return lookup_face (f
, attrs
);
6037 /* Return the face ID at buffer position POS for displaying ASCII
6038 characters associated with overlay strings for overlay OVERLAY.
6040 Like face_at_buffer_position except for OVERLAY. Currently it
6041 simply disregards the `face' properties of all overlays. */
6044 face_for_overlay_string (struct window
*w
, EMACS_INT pos
,
6045 EMACS_INT region_beg
, EMACS_INT region_end
,
6046 EMACS_INT
*endptr
, EMACS_INT limit
,
6047 int mouse
, Lisp_Object overlay
)
6049 struct frame
*f
= XFRAME (w
->frame
);
6050 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6051 Lisp_Object prop
, position
;
6054 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6055 Lisp_Object limit1
, end
;
6056 struct face
*default_face
;
6058 /* W must display the current buffer. We could write this function
6059 to use the frame and buffer of W, but right now it doesn't. */
6060 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6062 XSETFRAME (frame
, f
);
6063 XSETFASTINT (position
, pos
);
6066 if (pos
< region_beg
&& region_beg
< endpos
)
6067 endpos
= region_beg
;
6069 /* Get the `face' or `mouse_face' text property at POS, and
6070 determine the next position at which the property changes. */
6071 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6072 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6073 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6075 endpos
= XINT (end
);
6079 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6081 /* Optimize common cases where we can use the default face. */
6083 && !(pos
>= region_beg
&& pos
< region_end
))
6084 return DEFAULT_FACE_ID
;
6086 /* Begin with attributes from the default face. */
6087 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6089 /* Merge in attributes specified via text properties. */
6091 merge_face_ref (f
, prop
, attrs
, 1, 0);
6093 /* If in the region, merge in the region face. */
6094 if (pos
>= region_beg
&& pos
< region_end
)
6096 merge_named_face (f
, Qregion
, attrs
, 0);
6098 if (region_end
< endpos
)
6099 endpos
= region_end
;
6104 /* Look up a realized face with the given face attributes,
6105 or realize a new one for ASCII characters. */
6106 return lookup_face (f
, attrs
);
6110 /* Compute the face at character position POS in Lisp string STRING on
6111 window W, for ASCII characters.
6113 If STRING is an overlay string, it comes from position BUFPOS in
6114 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6115 not an overlay string. W must display the current buffer.
6116 REGION_BEG and REGION_END give the start and end positions of the
6117 region; both are -1 if no region is visible.
6119 BASE_FACE_ID is the id of a face to merge with. For strings coming
6120 from overlays or the `display' property it is the face at BUFPOS.
6122 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6124 Set *ENDPTR to the next position where to check for faces in
6125 STRING; -1 if the face is constant from POS to the end of the
6128 Value is the id of the face to use. The face returned is suitable
6129 for displaying ASCII characters. */
6132 face_at_string_position (struct window
*w
, Lisp_Object string
,
6133 EMACS_INT pos
, EMACS_INT bufpos
,
6134 EMACS_INT region_beg
, EMACS_INT region_end
,
6135 EMACS_INT
*endptr
, enum face_id base_face_id
,
6138 Lisp_Object prop
, position
, end
, limit
;
6139 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6140 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6141 struct face
*base_face
;
6142 int multibyte_p
= STRING_MULTIBYTE (string
);
6143 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6145 /* Get the value of the face property at the current position within
6146 STRING. Value is nil if there is no face property. */
6147 XSETFASTINT (position
, pos
);
6148 prop
= Fget_text_property (position
, prop_name
, string
);
6150 /* Get the next position at which to check for faces. Value of end
6151 is nil if face is constant all the way to the end of the string.
6152 Otherwise it is a string position where to check faces next.
6153 Limit is the maximum position up to which to check for property
6154 changes in Fnext_single_property_change. Strings are usually
6155 short, so set the limit to the end of the string. */
6156 XSETFASTINT (limit
, SCHARS (string
));
6157 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6159 *endptr
= XFASTINT (end
);
6163 base_face
= FACE_FROM_ID (f
, base_face_id
);
6164 xassert (base_face
);
6166 /* Optimize the default case that there is no face property and we
6167 are not in the region. */
6169 && (base_face_id
!= DEFAULT_FACE_ID
6170 /* BUFPOS <= 0 means STRING is not an overlay string, so
6171 that the region doesn't have to be taken into account. */
6173 || bufpos
< region_beg
6174 || bufpos
>= region_end
)
6176 /* We can't realize faces for different charsets differently
6177 if we don't have fonts, so we can stop here if not working
6178 on a window-system frame. */
6179 || !FRAME_WINDOW_P (f
)
6180 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6181 return base_face
->id
;
6183 /* Begin with attributes from the base face. */
6184 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6186 /* Merge in attributes specified via text properties. */
6188 merge_face_ref (f
, prop
, attrs
, 1, 0);
6190 /* If in the region, merge in the region face. */
6192 && bufpos
>= region_beg
6193 && bufpos
< region_end
)
6194 merge_named_face (f
, Qregion
, attrs
, 0);
6196 /* Look up a realized face with the given face attributes,
6197 or realize a new one for ASCII characters. */
6198 return lookup_face (f
, attrs
);
6202 /* Merge a face into a realized face.
6204 F is frame where faces are (to be) realized.
6206 FACE_NAME is named face to merge.
6208 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6210 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6212 BASE_FACE_ID is realized face to merge into.
6218 merge_faces (struct frame
*f
, Lisp_Object face_name
, EMACS_INT face_id
,
6221 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6222 struct face
*base_face
;
6224 base_face
= FACE_FROM_ID (f
, base_face_id
);
6226 return base_face_id
;
6228 if (EQ (face_name
, Qt
))
6230 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6231 return base_face_id
;
6232 face_name
= lface_id_to_name
[face_id
];
6233 /* When called during make-frame, lookup_derived_face may fail
6234 if the faces are uninitialized. Don't signal an error. */
6235 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6236 return (face_id
>= 0 ? face_id
: base_face_id
);
6239 /* Begin with attributes from the base face. */
6240 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6242 if (!NILP (face_name
))
6244 if (!merge_named_face (f
, face_name
, attrs
, 0))
6245 return base_face_id
;
6251 return base_face_id
;
6252 face
= FACE_FROM_ID (f
, face_id
);
6254 return base_face_id
;
6255 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6258 /* Look up a realized face with the given face attributes,
6259 or realize a new one for ASCII characters. */
6260 return lookup_face (f
, attrs
);
6265 #ifndef HAVE_X_WINDOWS
6266 DEFUN ("x-load-color-file", Fx_load_color_file
,
6267 Sx_load_color_file
, 1, 1, 0,
6268 doc
: /* Create an alist of color entries from an external file.
6270 The file should define one named RGB color per line like so:
6272 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6273 (Lisp_Object filename
)
6276 Lisp_Object cmap
= Qnil
;
6277 Lisp_Object abspath
;
6279 CHECK_STRING (filename
);
6280 abspath
= Fexpand_file_name (filename
, Qnil
);
6282 fp
= fopen (SDATA (abspath
), "rt");
6286 int red
, green
, blue
;
6291 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6292 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6294 char *name
= buf
+ num
;
6295 num
= strlen (name
) - 1;
6296 if (num
>= 0 && name
[num
] == '\n')
6298 cmap
= Fcons (Fcons (build_string (name
),
6300 make_number (RGB (red
, green
, blue
))),
6302 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6317 /***********************************************************************
6319 ***********************************************************************/
6323 /* Print the contents of the realized face FACE to stderr. */
6326 dump_realized_face (struct face
*face
)
6328 fprintf (stderr
, "ID: %d\n", face
->id
);
6329 #ifdef HAVE_X_WINDOWS
6330 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6332 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6334 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6335 fprintf (stderr
, "background: 0x%lx (%s)\n",
6337 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6339 fprintf (stderr
, "font_name: %s (%s)\n",
6340 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6341 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6342 #ifdef HAVE_X_WINDOWS
6343 fprintf (stderr
, "font = %p\n", face
->font
);
6345 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6346 fprintf (stderr
, "underline: %d (%s)\n",
6348 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6349 fprintf (stderr
, "hash: %d\n", face
->hash
);
6353 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6360 fprintf (stderr
, "font selection order: ");
6361 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6362 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6363 fprintf (stderr
, "\n");
6365 fprintf (stderr
, "alternative fonts: ");
6366 debug_print (Vface_alternative_font_family_alist
);
6367 fprintf (stderr
, "\n");
6369 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6370 Fdump_face (make_number (i
));
6376 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6378 error ("Not a valid face");
6379 dump_realized_face (face
);
6386 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6387 0, 0, 0, doc
: /* */)
6390 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6391 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6392 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6396 #endif /* GLYPH_DEBUG != 0 */
6400 /***********************************************************************
6402 ***********************************************************************/
6405 syms_of_xfaces (void)
6407 DEFSYM (Qface
, "face");
6408 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6409 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6410 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6412 /* Lisp face attribute keywords. */
6413 DEFSYM (QCfamily
, ":family");
6414 DEFSYM (QCheight
, ":height");
6415 DEFSYM (QCweight
, ":weight");
6416 DEFSYM (QCslant
, ":slant");
6417 DEFSYM (QCunderline
, ":underline");
6418 DEFSYM (QCinverse_video
, ":inverse-video");
6419 DEFSYM (QCreverse_video
, ":reverse-video");
6420 DEFSYM (QCforeground
, ":foreground");
6421 DEFSYM (QCbackground
, ":background");
6422 DEFSYM (QCstipple
, ":stipple");
6423 DEFSYM (QCwidth
, ":width");
6424 DEFSYM (QCfont
, ":font");
6425 DEFSYM (QCfontset
, ":fontset");
6426 DEFSYM (QCbold
, ":bold");
6427 DEFSYM (QCitalic
, ":italic");
6428 DEFSYM (QCoverline
, ":overline");
6429 DEFSYM (QCstrike_through
, ":strike-through");
6430 DEFSYM (QCbox
, ":box");
6431 DEFSYM (QCinherit
, ":inherit");
6433 /* Symbols used for Lisp face attribute values. */
6434 DEFSYM (QCcolor
, ":color");
6435 DEFSYM (QCline_width
, ":line-width");
6436 DEFSYM (QCstyle
, ":style");
6437 DEFSYM (Qreleased_button
, "released-button");
6438 DEFSYM (Qpressed_button
, "pressed-button");
6439 DEFSYM (Qnormal
, "normal");
6440 DEFSYM (Qultra_light
, "ultra-light");
6441 DEFSYM (Qextra_light
, "extra-light");
6442 DEFSYM (Qlight
, "light");
6443 DEFSYM (Qsemi_light
, "semi-light");
6444 DEFSYM (Qsemi_bold
, "semi-bold");
6445 DEFSYM (Qbold
, "bold");
6446 DEFSYM (Qextra_bold
, "extra-bold");
6447 DEFSYM (Qultra_bold
, "ultra-bold");
6448 DEFSYM (Qoblique
, "oblique");
6449 DEFSYM (Qitalic
, "italic");
6450 DEFSYM (Qreverse_oblique
, "reverse-oblique");
6451 DEFSYM (Qreverse_italic
, "reverse-italic");
6452 DEFSYM (Qultra_condensed
, "ultra-condensed");
6453 DEFSYM (Qextra_condensed
, "extra-condensed");
6454 DEFSYM (Qcondensed
, "condensed");
6455 DEFSYM (Qsemi_condensed
, "semi-condensed");
6456 DEFSYM (Qsemi_expanded
, "semi-expanded");
6457 DEFSYM (Qexpanded
, "expanded");
6458 DEFSYM (Qextra_expanded
, "extra-expanded");
6459 DEFSYM (Qultra_expanded
, "ultra-expanded");
6460 DEFSYM (Qbackground_color
, "background-color");
6461 DEFSYM (Qforeground_color
, "foreground-color");
6462 DEFSYM (Qunspecified
, "unspecified");
6463 DEFSYM (Qignore_defface
, ":ignore-defface");
6465 DEFSYM (Qface_alias
, "face-alias");
6466 DEFSYM (Qdefault
, "default");
6467 DEFSYM (Qtool_bar
, "tool-bar");
6468 DEFSYM (Qregion
, "region");
6469 DEFSYM (Qfringe
, "fringe");
6470 DEFSYM (Qheader_line
, "header-line");
6471 DEFSYM (Qscroll_bar
, "scroll-bar");
6472 DEFSYM (Qmenu
, "menu");
6473 DEFSYM (Qcursor
, "cursor");
6474 DEFSYM (Qborder
, "border");
6475 DEFSYM (Qmouse
, "mouse");
6476 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6477 DEFSYM (Qvertical_border
, "vertical-border");
6478 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6479 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6480 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6481 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6482 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6484 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6485 staticpro (&Vparam_value_alist
);
6486 Vface_alternative_font_family_alist
= Qnil
;
6487 staticpro (&Vface_alternative_font_family_alist
);
6488 Vface_alternative_font_registry_alist
= Qnil
;
6489 staticpro (&Vface_alternative_font_registry_alist
);
6491 defsubr (&Sinternal_make_lisp_face
);
6492 defsubr (&Sinternal_lisp_face_p
);
6493 defsubr (&Sinternal_set_lisp_face_attribute
);
6494 #ifdef HAVE_WINDOW_SYSTEM
6495 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6497 defsubr (&Scolor_gray_p
);
6498 defsubr (&Scolor_supported_p
);
6499 #ifndef HAVE_X_WINDOWS
6500 defsubr (&Sx_load_color_file
);
6502 defsubr (&Sface_attribute_relative_p
);
6503 defsubr (&Smerge_face_attribute
);
6504 defsubr (&Sinternal_get_lisp_face_attribute
);
6505 defsubr (&Sinternal_lisp_face_attribute_values
);
6506 defsubr (&Sinternal_lisp_face_equal_p
);
6507 defsubr (&Sinternal_lisp_face_empty_p
);
6508 defsubr (&Sinternal_copy_lisp_face
);
6509 defsubr (&Sinternal_merge_in_global_face
);
6510 defsubr (&Sface_font
);
6511 defsubr (&Sframe_face_alist
);
6512 defsubr (&Sdisplay_supports_face_attributes_p
);
6513 defsubr (&Scolor_distance
);
6514 defsubr (&Sinternal_set_font_selection_order
);
6515 defsubr (&Sinternal_set_alternative_font_family_alist
);
6516 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6517 defsubr (&Sface_attributes_as_vector
);
6519 defsubr (&Sdump_face
);
6520 defsubr (&Sshow_face_resources
);
6521 #endif /* GLYPH_DEBUG */
6522 defsubr (&Sclear_face_cache
);
6523 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6525 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6526 defsubr (&Sdump_colors
);
6529 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6530 doc
: /* *Limit for font matching.
6531 If an integer > 0, font matching functions won't load more than
6532 that number of fonts when searching for a matching font. */);
6533 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6535 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6536 doc
: /* List of global face definitions (for internal use only.) */);
6537 Vface_new_frame_defaults
= Qnil
;
6539 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6540 doc
: /* *Default stipple pattern used on monochrome displays.
6541 This stipple pattern is used on monochrome displays
6542 instead of shades of gray for a face background color.
6543 See `set-face-stipple' for possible values for this variable. */);
6544 Vface_default_stipple
= make_pure_c_string ("gray3");
6546 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6547 doc
: /* An alist of defined terminal colors and their RGB values.
6548 See the docstring of `tty-color-alist' for the details. */);
6549 Vtty_defined_color_alist
= Qnil
;
6551 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6552 doc
: /* Allowed scalable fonts.
6553 A value of nil means don't allow any scalable fonts.
6554 A value of t means allow any scalable font.
6555 Otherwise, value must be a list of regular expressions. A font may be
6556 scaled if its name matches a regular expression in the list.
6557 Note that if value is nil, a scalable font might still be used, if no
6558 other font of the appropriate family and registry is available. */);
6559 Vscalable_fonts_allowed
= Qnil
;
6561 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6562 doc
: /* List of ignored fonts.
6563 Each element is a regular expression that matches names of fonts to
6565 Vface_ignored_fonts
= Qnil
;
6567 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6568 doc
: /* Alist of face remappings.
6569 Each element is of the form:
6571 (FACE REPLACEMENT...),
6573 which causes display of the face FACE to use REPLACEMENT... instead.
6574 REPLACEMENT... is interpreted the same way as the value of a `face'
6575 text property: it may be (1) A face name, (2) A list of face names,
6576 (3) A property-list of face attribute/value pairs, or (4) A list of
6577 face names or lists containing face attribute/value pairs.
6579 Multiple entries in REPLACEMENT... are merged together to form the final
6580 result, with faces or attributes earlier in the list taking precedence
6581 over those that are later.
6583 Face-name remapping cycles are suppressed; recursive references use the
6584 underlying face instead of the remapped face. So a remapping of the form:
6586 (FACE EXTRA-FACE... FACE)
6590 (FACE (FACE-ATTR VAL ...) FACE)
6592 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6593 existing definition of FACE. Note that for the default face, this isn't
6594 necessary, as every face inherits from the default face.
6596 Making this variable buffer-local is a good way to allow buffer-specific
6597 face definitions. For instance, the mode my-mode could define a face
6598 `my-mode-default', and then in the mode setup function, do:
6600 (set (make-local-variable 'face-remapping-alist)
6601 '((default my-mode-default)))).
6603 Because Emacs normally only redraws screen areas when the underlying
6604 buffer contents change, you may need to call `redraw-display' after
6605 changing this variable for it to take effect. */);
6606 Vface_remapping_alist
= Qnil
;
6608 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6609 doc
: /* Alist of fonts vs the rescaling factors.
6610 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6611 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6612 RESCALE-RATIO is a floating point number to specify how much larger
6613 \(or smaller) font we should use. For instance, if a face requests
6614 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6615 Vface_font_rescale_alist
= Qnil
;
6617 #ifdef HAVE_WINDOW_SYSTEM
6618 defsubr (&Sbitmap_spec_p
);
6619 defsubr (&Sx_list_fonts
);
6620 defsubr (&Sinternal_face_x_get_resource
);
6621 defsubr (&Sx_family_fonts
);