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
);
943 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
945 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
947 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
952 return pixmap_p
? Qt
: Qnil
;
956 /* Load a bitmap according to NAME (which is either a file name or a
957 pixmap spec) for use on frame F. Value is the bitmap_id (see
958 xfns.c). If NAME is nil, return with a bitmap id of zero. If
959 bitmap cannot be loaded, display a message saying so, and return
960 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
961 if these pointers are not null. */
964 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
, unsigned int *h_ptr
)
971 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
976 /* Decode a bitmap spec into a bitmap. */
981 w
= XINT (Fcar (name
));
982 h
= XINT (Fcar (Fcdr (name
)));
983 bits
= Fcar (Fcdr (Fcdr (name
)));
985 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
990 /* It must be a string -- a file name. */
991 bitmap_id
= x_create_bitmap_from_file (f
, name
);
997 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1008 ++npixmaps_allocated
;
1011 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1014 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1020 #endif /* HAVE_WINDOW_SYSTEM */
1024 /***********************************************************************
1026 ***********************************************************************/
1028 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1029 RGB_LIST should contain (at least) 3 lisp integers.
1030 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1033 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
1035 #define PARSE_RGB_LIST_FIELD(field) \
1036 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1038 color->field = XINT (XCAR (rgb_list)); \
1039 rgb_list = XCDR (rgb_list); \
1044 PARSE_RGB_LIST_FIELD (red
);
1045 PARSE_RGB_LIST_FIELD (green
);
1046 PARSE_RGB_LIST_FIELD (blue
);
1052 /* Lookup on frame F the color described by the lisp string COLOR.
1053 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1054 non-zero, then the `standard' definition of the same color is
1058 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
, XColor
*std_color
)
1060 Lisp_Object frame
, color_desc
;
1062 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1065 XSETFRAME (frame
, f
);
1067 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1068 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1072 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1075 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1077 rgb
= XCDR (XCDR (color_desc
));
1078 if (! parse_rgb_list (rgb
, tty_color
))
1081 /* Should we fill in STD_COLOR too? */
1084 /* Default STD_COLOR to the same as TTY_COLOR. */
1085 *std_color
= *tty_color
;
1087 /* Do a quick check to see if the returned descriptor is
1088 actually _exactly_ equal to COLOR, otherwise we have to
1089 lookup STD_COLOR separately. If it's impossible to lookup
1090 a standard color, we just give up and use TTY_COLOR. */
1091 if ((!STRINGP (XCAR (color_desc
))
1092 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1093 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1095 /* Look up STD_COLOR separately. */
1096 rgb
= call1 (Qtty_color_standard_values
, color
);
1097 if (! parse_rgb_list (rgb
, std_color
))
1104 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1105 /* We were called early during startup, and the colors are not
1106 yet set up in tty-defined-color-alist. Don't return a failure
1107 indication, since this produces the annoying "Unable to
1108 load color" messages in the *Messages* buffer. */
1111 /* tty-color-desc seems to have returned a bad value. */
1115 /* A version of defined_color for non-X frames. */
1118 tty_defined_color (struct frame
*f
, const char *color_name
,
1119 XColor
*color_def
, int alloc
)
1124 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1126 color_def
->blue
= 0;
1127 color_def
->green
= 0;
1130 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1132 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1134 if (strcmp (color_name
, "unspecified-fg") == 0)
1135 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1136 else if (strcmp (color_name
, "unspecified-bg") == 0)
1137 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1140 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1147 /* Decide if color named COLOR_NAME is valid for the display
1148 associated with the frame F; if so, return the rgb values in
1149 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1151 This does the right thing for any type of frame. */
1154 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
, int alloc
)
1156 if (!FRAME_WINDOW_P (f
))
1157 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1158 #ifdef HAVE_X_WINDOWS
1159 else if (FRAME_X_P (f
))
1160 return x_defined_color (f
, color_name
, color_def
, alloc
);
1163 else if (FRAME_W32_P (f
))
1164 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1167 else if (FRAME_NS_P (f
))
1168 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1175 /* Given the index IDX of a tty color on frame F, return its name, a
1179 tty_color_name (struct frame
*f
, int idx
)
1181 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1184 Lisp_Object coldesc
;
1186 XSETFRAME (frame
, f
);
1187 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1189 if (!NILP (coldesc
))
1190 return XCAR (coldesc
);
1193 /* We can have an MSDOG frame under -nw for a short window of
1194 opportunity before internal_terminal_init is called. DTRT. */
1195 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1196 return msdos_stdcolor_name (idx
);
1199 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1200 return build_string (unspecified_fg
);
1201 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1202 return build_string (unspecified_bg
);
1204 return Qunspecified
;
1208 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1211 The criterion implemented here is not a terribly sophisticated one. */
1214 face_color_gray_p (struct frame
*f
, const char *color_name
)
1219 if (defined_color (f
, color_name
, &color
, 0))
1220 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1221 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1223 ((eabs (color
.red
- color
.green
)
1224 < max (color
.red
, color
.green
) / 20)
1225 && (eabs (color
.green
- color
.blue
)
1226 < max (color
.green
, color
.blue
) / 20)
1227 && (eabs (color
.blue
- color
.red
)
1228 < max (color
.blue
, color
.red
) / 20)));
1236 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1237 BACKGROUND_P non-zero means the color will be used as background
1241 face_color_supported_p (struct frame
*f
, const char *color_name
, int background_p
)
1246 XSETFRAME (frame
, f
);
1248 #ifdef HAVE_WINDOW_SYSTEM
1250 ? (!NILP (Fxw_display_color_p (frame
))
1251 || xstrcasecmp (color_name
, "black") == 0
1252 || xstrcasecmp (color_name
, "white") == 0
1254 && face_color_gray_p (f
, color_name
))
1255 || (!NILP (Fx_display_grayscale_p (frame
))
1256 && face_color_gray_p (f
, color_name
)))
1259 tty_defined_color (f
, color_name
, ¬_used
, 0);
1263 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1264 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1265 FRAME specifies the frame and thus the display for interpreting COLOR.
1266 If FRAME is nil or omitted, use the selected frame. */)
1267 (Lisp_Object color
, Lisp_Object frame
)
1271 CHECK_STRING (color
);
1273 frame
= selected_frame
;
1275 CHECK_FRAME (frame
);
1277 return face_color_gray_p (f
, SSDATA (color
)) ? Qt
: Qnil
;
1281 DEFUN ("color-supported-p", Fcolor_supported_p
,
1282 Scolor_supported_p
, 1, 3, 0,
1283 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1284 BACKGROUND-P non-nil means COLOR is used as a background.
1285 Otherwise, this function tells whether it can be used as a foreground.
1286 If FRAME is nil or omitted, use the selected frame.
1287 COLOR must be a valid color name. */)
1288 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1292 CHECK_STRING (color
);
1294 frame
= selected_frame
;
1296 CHECK_FRAME (frame
);
1298 if (face_color_supported_p (f
, SSDATA (color
), !NILP (background_p
)))
1304 /* Load color with name NAME for use by face FACE on frame F.
1305 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1306 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1307 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1308 pixel color. If color cannot be loaded, display a message, and
1309 return the foreground, background or underline color of F, but
1310 record that fact in flags of the face so that we don't try to free
1314 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
, enum lface_attribute_index target_index
)
1318 xassert (STRINGP (name
));
1319 xassert (target_index
== LFACE_FOREGROUND_INDEX
1320 || target_index
== LFACE_BACKGROUND_INDEX
1321 || target_index
== LFACE_UNDERLINE_INDEX
1322 || target_index
== LFACE_OVERLINE_INDEX
1323 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1324 || target_index
== LFACE_BOX_INDEX
);
1326 /* if the color map is full, defined_color will return a best match
1327 to the values in an existing cell. */
1328 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1330 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1332 switch (target_index
)
1334 case LFACE_FOREGROUND_INDEX
:
1335 face
->foreground_defaulted_p
= 1;
1336 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1339 case LFACE_BACKGROUND_INDEX
:
1340 face
->background_defaulted_p
= 1;
1341 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1344 case LFACE_UNDERLINE_INDEX
:
1345 face
->underline_defaulted_p
= 1;
1346 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1349 case LFACE_OVERLINE_INDEX
:
1350 face
->overline_color_defaulted_p
= 1;
1351 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1354 case LFACE_STRIKE_THROUGH_INDEX
:
1355 face
->strike_through_color_defaulted_p
= 1;
1356 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1359 case LFACE_BOX_INDEX
:
1360 face
->box_color_defaulted_p
= 1;
1361 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1370 ++ncolors_allocated
;
1377 #ifdef HAVE_WINDOW_SYSTEM
1379 /* Load colors for face FACE which is used on frame F. Colors are
1380 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1381 of ATTRS. If the background color specified is not supported on F,
1382 try to emulate gray colors with a stipple from Vface_default_stipple. */
1385 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1389 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1390 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1392 /* Swap colors if face is inverse-video. */
1393 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1401 /* Check for support for foreground, not for background because
1402 face_color_supported_p is smart enough to know that grays are
1403 "supported" as background because we are supposed to use stipple
1405 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1406 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1408 x_destroy_bitmap (f
, face
->stipple
);
1409 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1410 &face
->pixmap_w
, &face
->pixmap_h
);
1413 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1414 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1418 /* Free color PIXEL on frame F. */
1421 unload_color (struct frame
*f
, long unsigned int pixel
)
1423 #ifdef HAVE_X_WINDOWS
1427 x_free_colors (f
, &pixel
, 1);
1434 /* Free colors allocated for FACE. */
1437 free_face_colors (struct frame
*f
, struct face
*face
)
1439 /* PENDING(NS): need to do something here? */
1440 #ifdef HAVE_X_WINDOWS
1441 if (face
->colors_copied_bitwise_p
)
1446 if (!face
->foreground_defaulted_p
)
1448 x_free_colors (f
, &face
->foreground
, 1);
1449 IF_DEBUG (--ncolors_allocated
);
1452 if (!face
->background_defaulted_p
)
1454 x_free_colors (f
, &face
->background
, 1);
1455 IF_DEBUG (--ncolors_allocated
);
1458 if (face
->underline_p
1459 && !face
->underline_defaulted_p
)
1461 x_free_colors (f
, &face
->underline_color
, 1);
1462 IF_DEBUG (--ncolors_allocated
);
1465 if (face
->overline_p
1466 && !face
->overline_color_defaulted_p
)
1468 x_free_colors (f
, &face
->overline_color
, 1);
1469 IF_DEBUG (--ncolors_allocated
);
1472 if (face
->strike_through_p
1473 && !face
->strike_through_color_defaulted_p
)
1475 x_free_colors (f
, &face
->strike_through_color
, 1);
1476 IF_DEBUG (--ncolors_allocated
);
1479 if (face
->box
!= FACE_NO_BOX
1480 && !face
->box_color_defaulted_p
)
1482 x_free_colors (f
, &face
->box_color
, 1);
1483 IF_DEBUG (--ncolors_allocated
);
1487 #endif /* HAVE_X_WINDOWS */
1490 #endif /* HAVE_WINDOW_SYSTEM */
1494 /***********************************************************************
1496 ***********************************************************************/
1498 /* An enumerator for each field of an XLFD font name. */
1519 /* An enumerator for each possible slant value of a font. Taken from
1520 the XLFD specification. */
1528 XLFD_SLANT_REVERSE_ITALIC
,
1529 XLFD_SLANT_REVERSE_OBLIQUE
,
1533 /* Relative font weight according to XLFD documentation. */
1537 XLFD_WEIGHT_UNKNOWN
,
1538 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1539 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1540 XLFD_WEIGHT_LIGHT
, /* 30 */
1541 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1542 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1543 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1544 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1545 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1546 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1549 /* Relative proportionate width. */
1553 XLFD_SWIDTH_UNKNOWN
,
1554 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1555 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1556 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1557 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1558 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1559 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1560 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1561 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1562 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1565 /* Order by which font selection chooses fonts. The default values
1566 mean `first, find a best match for the font width, then for the
1567 font height, then for weight, then for slant.' This variable can be
1568 set via set-face-font-sort-order. */
1570 static int font_sort_order
[4];
1572 #ifdef HAVE_WINDOW_SYSTEM
1574 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1577 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1579 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1580 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1583 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1585 enum font_property_index idx
= font_props_for_sorting
[i
];
1586 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1589 if (idx
<= FONT_REGISTRY_INDEX
)
1592 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1594 result
= STRINGP (val2
) ? 1 : 0;
1598 if (INTEGERP (val1
))
1599 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1601 result
= INTEGERP (val2
) ? 1 : 0;
1609 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1610 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1611 If FAMILY is omitted or nil, list all families.
1612 Otherwise, FAMILY must be a string, possibly containing wildcards
1614 If FRAME is omitted or nil, use the selected frame.
1615 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1616 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1617 FAMILY is the font family name. POINT-SIZE is the size of the
1618 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1619 width, weight and slant of the font. These symbols are the same as for
1620 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1621 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1622 giving the registry and encoding of the font.
1623 The result list is sorted according to the current setting of
1624 the face font sort order. */)
1625 (Lisp_Object family
, Lisp_Object frame
)
1627 Lisp_Object font_spec
, list
, *drivers
, vec
;
1628 int i
, nfonts
, ndrivers
;
1632 frame
= selected_frame
;
1633 CHECK_LIVE_FRAME (frame
);
1635 font_spec
= Ffont_spec (0, NULL
);
1638 CHECK_STRING (family
);
1639 font_parse_family_registry (family
, Qnil
, font_spec
);
1642 list
= font_list_entities (frame
, font_spec
);
1646 /* Sort the font entities. */
1647 for (i
= 0; i
< 4; i
++)
1648 switch (font_sort_order
[i
])
1651 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1652 case XLFD_POINT_SIZE
:
1653 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1655 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1657 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1659 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1660 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1661 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1662 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1664 ndrivers
= XINT (Flength (list
));
1665 drivers
= alloca (sizeof (Lisp_Object
) * ndrivers
);
1666 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1667 drivers
[i
] = XCAR (list
);
1668 vec
= Fvconcat (ndrivers
, drivers
);
1669 nfonts
= ASIZE (vec
);
1671 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1672 compare_fonts_by_sort_order
);
1675 for (i
= nfonts
- 1; i
>= 0; --i
)
1677 Lisp_Object font
= AREF (vec
, i
);
1678 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1680 Lisp_Object spacing
;
1682 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1683 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1684 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1685 XFRAME (frame
)->resy
);
1686 ASET (v
, 2, make_number (point
));
1687 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1688 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1689 spacing
= Ffont_get (font
, QCspacing
);
1690 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1691 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1692 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1694 result
= Fcons (v
, result
);
1700 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1701 doc
: /* Return a list of the names of available fonts matching PATTERN.
1702 If optional arguments FACE and FRAME are specified, return only fonts
1703 the same size as FACE on FRAME.
1705 PATTERN should be a string containing a font name in the XLFD,
1706 Fontconfig, or GTK format. A font name given in the XLFD format may
1707 contain wildcard characters:
1708 the * character matches any substring, and
1709 the ? character matches any single character.
1710 PATTERN is case-insensitive.
1712 The return value is a list of strings, suitable as arguments to
1715 Fonts Emacs can't use may or may not be excluded
1716 even if they match PATTERN and FACE.
1717 The optional fourth argument MAXIMUM sets a limit on how many
1718 fonts to match. The first MAXIMUM fonts are reported.
1719 The optional fifth argument WIDTH, if specified, is a number of columns
1720 occupied by a character of a font. In that case, return only fonts
1721 the WIDTH times as wide as FACE on FRAME. */)
1722 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
, Lisp_Object maximum
, Lisp_Object width
)
1725 int size
, avgwidth
IF_LINT (= 0);
1728 CHECK_STRING (pattern
);
1730 if (! NILP (maximum
))
1731 CHECK_NATNUM (maximum
);
1734 CHECK_NUMBER (width
);
1736 /* We can't simply call check_x_frame because this function may be
1737 called before any frame is created. */
1739 frame
= selected_frame
;
1740 f
= frame_or_selected_frame (frame
, 2);
1741 if (! FRAME_WINDOW_P (f
))
1743 /* Perhaps we have not yet created any frame. */
1749 /* Determine the width standard for comparison with the fonts we find. */
1755 /* This is of limited utility since it works with character
1756 widths. Keep it for compatibility. --gerd. */
1757 int face_id
= lookup_named_face (f
, face
, 0);
1758 struct face
*width_face
= (face_id
< 0
1760 : FACE_FROM_ID (f
, face_id
));
1762 if (width_face
&& width_face
->font
)
1764 size
= width_face
->font
->pixel_size
;
1765 avgwidth
= width_face
->font
->average_width
;
1769 size
= FRAME_FONT (f
)->pixel_size
;
1770 avgwidth
= FRAME_FONT (f
)->average_width
;
1773 avgwidth
*= XINT (width
);
1777 Lisp_Object font_spec
;
1778 Lisp_Object args
[2], tail
;
1780 font_spec
= font_spec_from_name (pattern
);
1781 if (!FONTP (font_spec
))
1782 signal_error ("Invalid font name", pattern
);
1786 Ffont_put (font_spec
, QCsize
, make_number (size
));
1787 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1789 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1790 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1792 Lisp_Object font_entity
;
1794 font_entity
= XCAR (tail
);
1795 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1796 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1797 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1799 /* This is a scalable font. For backward compatibility,
1800 we set the specified size. */
1801 font_entity
= copy_font_spec (font_entity
);
1802 ASET (font_entity
, FONT_SIZE_INDEX
,
1803 AREF (font_spec
, FONT_SIZE_INDEX
));
1805 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1808 /* We don't have to check fontsets. */
1810 args
[1] = list_fontsets (f
, pattern
, size
);
1811 return Fnconc (2, args
);
1815 #endif /* HAVE_WINDOW_SYSTEM */
1818 /***********************************************************************
1820 ***********************************************************************/
1822 /* Access face attributes of face LFACE, a Lisp vector. */
1824 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1825 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1826 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1827 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1828 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1829 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1830 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1831 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1832 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1833 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1834 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1835 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1836 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1837 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1838 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1839 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1840 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1843 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1844 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1846 #define LFACEP(LFACE) \
1848 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1849 && EQ (AREF (LFACE, 0), Qface))
1855 /* Check consistency of Lisp face attribute vector ATTRS. */
1858 check_lface_attrs (Lisp_Object
*attrs
)
1860 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1861 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1862 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1863 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1864 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1865 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1866 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1867 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1868 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1869 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1870 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1871 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1872 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1873 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1874 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1875 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1876 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1877 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1878 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1879 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1880 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1881 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1882 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1883 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
1884 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1885 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1886 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1887 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1888 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1889 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1890 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1891 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1892 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1893 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1894 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1895 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1896 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1897 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1898 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1899 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1900 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1901 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1902 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1903 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1904 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1905 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1906 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1907 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1908 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1909 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1910 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1911 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1912 #ifdef HAVE_WINDOW_SYSTEM
1913 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1914 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1915 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1916 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1917 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1918 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1919 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1920 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1921 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
1926 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1929 check_lface (Lisp_Object lface
)
1933 xassert (LFACEP (lface
));
1934 check_lface_attrs (XVECTOR (lface
)->contents
);
1938 #else /* GLYPH_DEBUG == 0 */
1940 #define check_lface_attrs(attrs) (void) 0
1941 #define check_lface(lface) (void) 0
1943 #endif /* GLYPH_DEBUG == 0 */
1947 /* Face-merge cycle checking. */
1949 enum named_merge_point_kind
1951 NAMED_MERGE_POINT_NORMAL
,
1952 NAMED_MERGE_POINT_REMAP
1955 /* A `named merge point' is simply a point during face-merging where we
1956 look up a face by name. We keep a stack of which named lookups we're
1957 currently processing so that we can easily detect cycles, using a
1958 linked- list of struct named_merge_point structures, typically
1959 allocated on the stack frame of the named lookup functions which are
1960 active (so no consing is required). */
1961 struct named_merge_point
1963 Lisp_Object face_name
;
1964 enum named_merge_point_kind named_merge_point_kind
;
1965 struct named_merge_point
*prev
;
1969 /* If a face merging cycle is detected for FACE_NAME, return 0,
1970 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1971 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1972 pointed to by NAMED_MERGE_POINTS, and return 1. */
1975 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1976 Lisp_Object face_name
,
1977 enum named_merge_point_kind named_merge_point_kind
,
1978 struct named_merge_point
**named_merge_points
)
1980 struct named_merge_point
*prev
;
1982 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1983 if (EQ (face_name
, prev
->face_name
))
1985 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1986 /* A cycle, so fail. */
1988 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1989 /* A remap `hides ' any previous normal merge points
1990 (because the remap means that it's actually different face),
1991 so as we know the current merge point must be normal, we
1992 can just assume it's OK. */
1996 new_named_merge_point
->face_name
= face_name
;
1997 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1998 new_named_merge_point
->prev
= *named_merge_points
;
2000 *named_merge_points
= new_named_merge_point
;
2006 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2007 to make it a symbol. If FACE_NAME is an alias for another face,
2008 return that face's name.
2010 Return default face in case of errors. */
2013 resolve_face_name (Lisp_Object face_name
, int signal_p
)
2015 Lisp_Object orig_face
;
2016 Lisp_Object tortoise
, hare
;
2018 if (STRINGP (face_name
))
2019 face_name
= intern (SSDATA (face_name
));
2021 if (NILP (face_name
) || !SYMBOLP (face_name
))
2024 orig_face
= face_name
;
2025 tortoise
= hare
= face_name
;
2030 hare
= Fget (hare
, Qface_alias
);
2031 if (NILP (hare
) || !SYMBOLP (hare
))
2035 hare
= Fget (hare
, Qface_alias
);
2036 if (NILP (hare
) || !SYMBOLP (hare
))
2039 tortoise
= Fget (tortoise
, Qface_alias
);
2040 if (EQ (hare
, tortoise
))
2043 xsignal1 (Qcircular_list
, orig_face
);
2052 /* Return the face definition of FACE_NAME on frame F. F null means
2053 return the definition for new frames. FACE_NAME may be a string or
2054 a symbol (apparently Emacs 20.2 allowed strings as face names in
2055 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2056 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2057 is zero, value is nil if FACE_NAME is not a valid face name. */
2058 static inline Lisp_Object
2059 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2064 lface
= assq_no_quit (face_name
, f
->face_alist
);
2066 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2069 lface
= XCDR (lface
);
2071 signal_error ("Invalid face", face_name
);
2073 check_lface (lface
);
2078 /* Return the face definition of FACE_NAME on frame F. F null means
2079 return the definition for new frames. FACE_NAME may be a string or
2080 a symbol (apparently Emacs 20.2 allowed strings as face names in
2081 face text properties; Ediff uses that). If FACE_NAME is an alias
2082 for another face, return that face's definition. If SIGNAL_P is
2083 non-zero, signal an error if FACE_NAME is not a valid face name.
2084 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2086 static inline Lisp_Object
2087 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2089 face_name
= resolve_face_name (face_name
, signal_p
);
2090 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2094 /* Get face attributes of face FACE_NAME from frame-local faces on
2095 frame F. Store the resulting attributes in ATTRS which must point
2096 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2097 is non-zero, signal an error if FACE_NAME does not name a face.
2098 Otherwise, value is zero if FACE_NAME is not a face. */
2101 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
)
2105 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2108 memcpy (attrs
, XVECTOR (lface
)->contents
,
2109 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2111 return !NILP (lface
);
2114 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2115 F. Store the resulting attributes in ATTRS which must point to a
2116 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2117 alias for another face, use that face's definition. If SIGNAL_P is
2118 non-zero, signal an error if FACE_NAME does not name a face.
2119 Otherwise, value is zero if FACE_NAME is not a face. */
2122 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
, struct named_merge_point
*named_merge_points
)
2124 Lisp_Object face_remapping
;
2126 face_name
= resolve_face_name (face_name
, signal_p
);
2128 /* See if SYMBOL has been remapped to some other face (usually this
2129 is done buffer-locally). */
2130 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2131 if (CONSP (face_remapping
))
2133 struct named_merge_point named_merge_point
;
2135 if (push_named_merge_point (&named_merge_point
,
2136 face_name
, NAMED_MERGE_POINT_REMAP
,
2137 &named_merge_points
))
2141 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2142 attrs
[i
] = Qunspecified
;
2144 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2145 signal_p
, named_merge_points
);
2149 /* Default case, no remapping. */
2150 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2154 /* Non-zero if all attributes in face attribute vector ATTRS are
2155 specified, i.e. are non-nil. */
2158 lface_fully_specified_p (Lisp_Object
*attrs
)
2162 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2163 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2164 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2167 return i
== LFACE_VECTOR_SIZE
;
2170 #ifdef HAVE_WINDOW_SYSTEM
2172 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2173 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2174 exception is `font' attribute. It is set to FONT_OBJECT regardless
2178 set_lface_from_font (struct frame
*f
, Lisp_Object lface
, Lisp_Object font_object
, int force_p
)
2181 struct font
*font
= XFONT_OBJECT (font_object
);
2183 /* Set attributes only if unspecified, otherwise face defaults for
2184 new frames would never take effect. If the font doesn't have a
2185 specific property, set a normal value for that. */
2187 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2189 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2191 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2194 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2196 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2198 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2201 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2203 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2206 LFACE_HEIGHT (lface
) = make_number (pt
);
2209 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2211 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2212 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2214 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2216 val
= FONT_SLANT_FOR_FACE (font_object
);
2217 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2219 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2221 val
= FONT_WIDTH_FOR_FACE (font_object
);
2222 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2225 LFACE_FONT (lface
) = font_object
;
2229 #endif /* HAVE_WINDOW_SYSTEM */
2232 /* Merges the face height FROM with the face height TO, and returns the
2233 merged height. If FROM is an invalid height, then INVALID is
2234 returned instead. FROM and TO may be either absolute face heights or
2235 `relative' heights; the returned value is always an absolute height
2236 unless both FROM and TO are relative. */
2239 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2241 Lisp_Object result
= invalid
;
2243 if (INTEGERP (from
))
2244 /* FROM is absolute, just use it as is. */
2246 else if (FLOATP (from
))
2247 /* FROM is a scale, use it to adjust TO. */
2250 /* relative X absolute => absolute */
2251 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2252 else if (FLOATP (to
))
2253 /* relative X relative => relative */
2254 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2255 else if (UNSPECIFIEDP (to
))
2258 else if (FUNCTIONP (from
))
2259 /* FROM is a function, which use to adjust TO. */
2261 /* Call function with current height as argument.
2262 From is the new height. */
2263 Lisp_Object args
[2];
2267 result
= safe_call (2, args
);
2269 /* Ensure that if TO was absolute, so is the result. */
2270 if (INTEGERP (to
) && !INTEGERP (result
))
2278 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2279 store the resulting attributes in TO, which must be already be
2280 completely specified and contain only absolute attributes. Every
2281 specified attribute of FROM overrides the corresponding attribute of
2282 TO; relative attributes in FROM are merged with the absolute value in
2283 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2284 loops in face inheritance/remapping; it should be 0 when called from
2288 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2292 /* If FROM inherits from some other faces, merge their attributes into
2293 TO before merging FROM's direct attributes. Note that an :inherit
2294 attribute of `unspecified' is the same as one of nil; we never
2295 merge :inherit attributes, so nil is more correct, but lots of
2296 other code uses `unspecified' as a generic value for face attributes. */
2297 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2298 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2299 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2301 i
= LFACE_FONT_INDEX
;
2302 if (!UNSPECIFIEDP (from
[i
]))
2304 if (!UNSPECIFIEDP (to
[i
]))
2305 to
[i
] = merge_font_spec (from
[i
], to
[i
]);
2307 to
[i
] = copy_font_spec (from
[i
]);
2308 if (! NILP (AREF (to
[i
], FONT_FOUNDRY_INDEX
)))
2309 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FOUNDRY_INDEX
));
2310 if (! NILP (AREF (to
[i
], FONT_FAMILY_INDEX
)))
2311 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FAMILY_INDEX
));
2312 if (! NILP (AREF (to
[i
], FONT_WEIGHT_INDEX
)))
2313 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (to
[i
]);
2314 if (! NILP (AREF (to
[i
], FONT_SLANT_INDEX
)))
2315 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (to
[i
]);
2316 if (! NILP (AREF (to
[i
], FONT_WIDTH_INDEX
)))
2317 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (to
[i
]);
2318 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2321 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2322 if (!UNSPECIFIEDP (from
[i
]))
2324 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2326 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2327 font_clear_prop (to
, FONT_SIZE_INDEX
);
2329 else if (i
!= LFACE_FONT_INDEX
2330 && ! EQ (to
[i
], from
[i
]))
2333 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2334 font_clear_prop (to
,
2335 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2336 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2337 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2338 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2339 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2340 : FONT_SLANT_INDEX
));
2344 /* TO is always an absolute face, which should inherit from nothing.
2345 We blindly copy the :inherit attribute above and fix it up here. */
2346 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2349 /* Merge the named face FACE_NAME on frame F, into the vector of face
2350 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2351 inheritance. Returns true if FACE_NAME is a valid face name and
2352 merging succeeded. */
2355 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2357 struct named_merge_point named_merge_point
;
2359 if (push_named_merge_point (&named_merge_point
,
2360 face_name
, NAMED_MERGE_POINT_NORMAL
,
2361 &named_merge_points
))
2363 struct gcpro gcpro1
;
2364 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2365 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2369 GCPRO1 (named_merge_point
.face_name
);
2370 merge_face_vectors (f
, from
, to
, named_merge_points
);
2381 /* Merge face attributes from the lisp `face reference' FACE_REF on
2382 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2383 problems with FACE_REF cause an error message to be shown. Return
2384 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2385 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2386 list structure; it may be 0 for most callers.
2388 FACE_REF may be a single face specification or a list of such
2389 specifications. Each face specification can be:
2391 1. A symbol or string naming a Lisp face.
2393 2. A property list of the form (KEYWORD VALUE ...) where each
2394 KEYWORD is a face attribute name, and value is an appropriate value
2397 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2398 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2399 for compatibility with 20.2.
2401 Face specifications earlier in lists take precedence over later
2405 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
, int err_msgs
, struct named_merge_point
*named_merge_points
)
2407 int ok
= 1; /* Succeed without an error? */
2409 if (CONSP (face_ref
))
2411 Lisp_Object first
= XCAR (face_ref
);
2413 if (EQ (first
, Qforeground_color
)
2414 || EQ (first
, Qbackground_color
))
2416 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2417 . COLOR). COLOR must be a string. */
2418 Lisp_Object color_name
= XCDR (face_ref
);
2419 Lisp_Object color
= first
;
2421 if (STRINGP (color_name
))
2423 if (EQ (color
, Qforeground_color
))
2424 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2426 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2431 add_to_log ("Invalid face color", color_name
, Qnil
);
2435 else if (SYMBOLP (first
)
2436 && *SDATA (SYMBOL_NAME (first
)) == ':')
2438 /* Assume this is the property list form. */
2439 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2441 Lisp_Object keyword
= XCAR (face_ref
);
2442 Lisp_Object value
= XCAR (XCDR (face_ref
));
2445 /* Specifying `unspecified' is a no-op. */
2446 if (EQ (value
, Qunspecified
))
2448 else if (EQ (keyword
, QCfamily
))
2450 if (STRINGP (value
))
2452 to
[LFACE_FAMILY_INDEX
] = value
;
2453 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2458 else if (EQ (keyword
, QCfoundry
))
2460 if (STRINGP (value
))
2462 to
[LFACE_FOUNDRY_INDEX
] = value
;
2463 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2468 else if (EQ (keyword
, QCheight
))
2470 Lisp_Object new_height
=
2471 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2473 if (! NILP (new_height
))
2475 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2476 font_clear_prop (to
, FONT_SIZE_INDEX
);
2481 else if (EQ (keyword
, QCweight
))
2483 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2485 to
[LFACE_WEIGHT_INDEX
] = value
;
2486 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2491 else if (EQ (keyword
, QCslant
))
2493 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2495 to
[LFACE_SLANT_INDEX
] = value
;
2496 font_clear_prop (to
, FONT_SLANT_INDEX
);
2501 else if (EQ (keyword
, QCunderline
))
2506 to
[LFACE_UNDERLINE_INDEX
] = value
;
2510 else if (EQ (keyword
, QCoverline
))
2515 to
[LFACE_OVERLINE_INDEX
] = value
;
2519 else if (EQ (keyword
, QCstrike_through
))
2524 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2528 else if (EQ (keyword
, QCbox
))
2531 value
= make_number (1);
2532 if (INTEGERP (value
)
2536 to
[LFACE_BOX_INDEX
] = value
;
2540 else if (EQ (keyword
, QCinverse_video
)
2541 || EQ (keyword
, QCreverse_video
))
2543 if (EQ (value
, Qt
) || NILP (value
))
2544 to
[LFACE_INVERSE_INDEX
] = value
;
2548 else if (EQ (keyword
, QCforeground
))
2550 if (STRINGP (value
))
2551 to
[LFACE_FOREGROUND_INDEX
] = value
;
2555 else if (EQ (keyword
, QCbackground
))
2557 if (STRINGP (value
))
2558 to
[LFACE_BACKGROUND_INDEX
] = value
;
2562 else if (EQ (keyword
, QCstipple
))
2564 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
2565 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2566 if (!NILP (pixmap_p
))
2567 to
[LFACE_STIPPLE_INDEX
] = value
;
2572 else if (EQ (keyword
, QCwidth
))
2574 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2576 to
[LFACE_SWIDTH_INDEX
] = value
;
2577 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2582 else if (EQ (keyword
, QCinherit
))
2584 /* This is not really very useful; it's just like a
2585 normal face reference. */
2586 if (! merge_face_ref (f
, value
, to
,
2587 err_msgs
, named_merge_points
))
2595 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2599 face_ref
= XCDR (XCDR (face_ref
));
2604 /* This is a list of face refs. Those at the beginning of the
2605 list take precedence over what follows, so we have to merge
2606 from the end backwards. */
2607 Lisp_Object next
= XCDR (face_ref
);
2610 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2612 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2618 /* FACE_REF ought to be a face name. */
2619 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2620 if (!ok
&& err_msgs
)
2621 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2628 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2629 Sinternal_make_lisp_face
, 1, 2, 0,
2630 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2631 If FACE was not known as a face before, create a new one.
2632 If optional argument FRAME is specified, make a frame-local face
2633 for that frame. Otherwise operate on the global face definition.
2634 Value is a vector of face attributes. */)
2635 (Lisp_Object face
, Lisp_Object frame
)
2637 Lisp_Object global_lface
, lface
;
2641 CHECK_SYMBOL (face
);
2642 global_lface
= lface_from_face_name (NULL
, face
, 0);
2646 CHECK_LIVE_FRAME (frame
);
2648 lface
= lface_from_face_name (f
, face
, 0);
2651 f
= NULL
, lface
= Qnil
;
2653 /* Add a global definition if there is none. */
2654 if (NILP (global_lface
))
2656 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2658 ASET (global_lface
, 0, Qface
);
2659 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2660 Vface_new_frame_defaults
);
2662 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2663 face id to Lisp face is given by the vector lface_id_to_name.
2664 The mapping from Lisp face to Lisp face id is given by the
2665 property `face' of the Lisp face name. */
2666 if (next_lface_id
== lface_id_to_name_size
)
2668 int new_size
= max (50, 2 * lface_id_to_name_size
);
2669 int sz
= new_size
* sizeof *lface_id_to_name
;
2670 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2671 lface_id_to_name_size
= new_size
;
2674 lface_id_to_name
[next_lface_id
] = face
;
2675 Fput (face
, Qface
, make_number (next_lface_id
));
2679 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2680 ASET (global_lface
, i
, Qunspecified
);
2682 /* Add a frame-local definition. */
2687 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2689 ASET (lface
, 0, Qface
);
2690 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2693 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2694 ASET (lface
, i
, Qunspecified
);
2697 lface
= global_lface
;
2699 /* Changing a named face means that all realized faces depending on
2700 that face are invalid. Since we cannot tell which realized faces
2701 depend on the face, make sure they are all removed. This is done
2702 by incrementing face_change_count. The next call to
2703 init_iterator will then free realized faces. */
2704 if (NILP (Fget (face
, Qface_no_inherit
)))
2706 ++face_change_count
;
2707 ++windows_or_buffers_changed
;
2710 xassert (LFACEP (lface
));
2711 check_lface (lface
);
2716 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2717 Sinternal_lisp_face_p
, 1, 2, 0,
2718 doc
: /* Return non-nil if FACE names a face.
2719 FACE should be a symbol or string.
2720 If optional second argument FRAME is non-nil, check for the
2721 existence of a frame-local face with name FACE on that frame.
2722 Otherwise check for the existence of a global face. */)
2723 (Lisp_Object face
, Lisp_Object frame
)
2727 face
= resolve_face_name (face
, 1);
2731 CHECK_LIVE_FRAME (frame
);
2732 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2735 lface
= lface_from_face_name (NULL
, face
, 0);
2741 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2742 Sinternal_copy_lisp_face
, 4, 4, 0,
2743 doc
: /* Copy face FROM to TO.
2744 If FRAME is t, copy the global face definition of FROM.
2745 Otherwise, copy the frame-local definition of FROM on FRAME.
2746 If NEW-FRAME is a frame, copy that data into the frame-local
2747 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2748 FRAME controls where the data is copied to.
2750 The value is TO. */)
2751 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2753 Lisp_Object lface
, copy
;
2755 CHECK_SYMBOL (from
);
2760 /* Copy global definition of FROM. We don't make copies of
2761 strings etc. because 20.2 didn't do it either. */
2762 lface
= lface_from_face_name (NULL
, from
, 1);
2763 copy
= Finternal_make_lisp_face (to
, Qnil
);
2767 /* Copy frame-local definition of FROM. */
2768 if (NILP (new_frame
))
2770 CHECK_LIVE_FRAME (frame
);
2771 CHECK_LIVE_FRAME (new_frame
);
2772 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2773 copy
= Finternal_make_lisp_face (to
, new_frame
);
2776 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2777 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2779 /* Changing a named face means that all realized faces depending on
2780 that face are invalid. Since we cannot tell which realized faces
2781 depend on the face, make sure they are all removed. This is done
2782 by incrementing face_change_count. The next call to
2783 init_iterator will then free realized faces. */
2784 if (NILP (Fget (to
, Qface_no_inherit
)))
2786 ++face_change_count
;
2787 ++windows_or_buffers_changed
;
2794 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2795 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2796 doc
: /* Set attribute ATTR of FACE to VALUE.
2797 FRAME being a frame means change the face on that frame.
2798 FRAME nil means change the face of the selected frame.
2799 FRAME t means change the default for new frames.
2800 FRAME 0 means change the face on all frames, and change the default
2802 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2805 Lisp_Object old_value
= Qnil
;
2806 /* Set one of enum font_property_index (> 0) if ATTR is one of
2807 font-related attributes other than QCfont and QCfontset. */
2808 enum font_property_index prop_index
= 0;
2810 CHECK_SYMBOL (face
);
2811 CHECK_SYMBOL (attr
);
2813 face
= resolve_face_name (face
, 1);
2815 /* If FRAME is 0, change face on all frames, and change the
2816 default for new frames. */
2817 if (INTEGERP (frame
) && XINT (frame
) == 0)
2820 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2821 FOR_EACH_FRAME (tail
, frame
)
2822 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2826 /* Set lface to the Lisp attribute vector of FACE. */
2829 lface
= lface_from_face_name (NULL
, face
, 1);
2831 /* When updating face-new-frame-defaults, we put :ignore-defface
2832 where the caller wants `unspecified'. This forces the frame
2833 defaults to ignore the defface value. Otherwise, the defface
2834 will take effect, which is generally not what is intended.
2835 The value of that attribute will be inherited from some other
2836 face during face merging. See internal_merge_in_global_face. */
2837 if (UNSPECIFIEDP (value
))
2838 value
= Qignore_defface
;
2843 frame
= selected_frame
;
2845 CHECK_LIVE_FRAME (frame
);
2846 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2848 /* If a frame-local face doesn't exist yet, create one. */
2850 lface
= Finternal_make_lisp_face (face
, frame
);
2853 if (EQ (attr
, QCfamily
))
2855 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2857 CHECK_STRING (value
);
2858 if (SCHARS (value
) == 0)
2859 signal_error ("Invalid face family", value
);
2861 old_value
= LFACE_FAMILY (lface
);
2862 LFACE_FAMILY (lface
) = value
;
2863 prop_index
= FONT_FAMILY_INDEX
;
2865 else if (EQ (attr
, QCfoundry
))
2867 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2869 CHECK_STRING (value
);
2870 if (SCHARS (value
) == 0)
2871 signal_error ("Invalid face foundry", value
);
2873 old_value
= LFACE_FOUNDRY (lface
);
2874 LFACE_FOUNDRY (lface
) = value
;
2875 prop_index
= FONT_FOUNDRY_INDEX
;
2877 else if (EQ (attr
, QCheight
))
2879 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2881 if (EQ (face
, Qdefault
))
2883 /* The default face must have an absolute size. */
2884 if (!INTEGERP (value
) || XINT (value
) <= 0)
2885 signal_error ("Default face height not absolute and positive", value
);
2889 /* For non-default faces, do a test merge with a random
2890 height to see if VALUE's ok. */
2891 Lisp_Object test
= merge_face_heights (value
,
2894 if (!INTEGERP (test
) || XINT (test
) <= 0)
2895 signal_error ("Face height does not produce a positive integer", value
);
2899 old_value
= LFACE_HEIGHT (lface
);
2900 LFACE_HEIGHT (lface
) = value
;
2901 prop_index
= FONT_SIZE_INDEX
;
2903 else if (EQ (attr
, QCweight
))
2905 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2907 CHECK_SYMBOL (value
);
2908 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2909 signal_error ("Invalid face weight", value
);
2911 old_value
= LFACE_WEIGHT (lface
);
2912 LFACE_WEIGHT (lface
) = value
;
2913 prop_index
= FONT_WEIGHT_INDEX
;
2915 else if (EQ (attr
, QCslant
))
2917 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2919 CHECK_SYMBOL (value
);
2920 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2921 signal_error ("Invalid face slant", value
);
2923 old_value
= LFACE_SLANT (lface
);
2924 LFACE_SLANT (lface
) = value
;
2925 prop_index
= FONT_SLANT_INDEX
;
2927 else if (EQ (attr
, QCunderline
))
2929 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2930 if ((SYMBOLP (value
)
2932 && !EQ (value
, Qnil
))
2933 /* Underline color. */
2935 && SCHARS (value
) == 0))
2936 signal_error ("Invalid face underline", value
);
2938 old_value
= LFACE_UNDERLINE (lface
);
2939 LFACE_UNDERLINE (lface
) = value
;
2941 else if (EQ (attr
, QCoverline
))
2943 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2944 if ((SYMBOLP (value
)
2946 && !EQ (value
, Qnil
))
2947 /* Overline color. */
2949 && SCHARS (value
) == 0))
2950 signal_error ("Invalid face overline", value
);
2952 old_value
= LFACE_OVERLINE (lface
);
2953 LFACE_OVERLINE (lface
) = value
;
2955 else if (EQ (attr
, QCstrike_through
))
2957 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2958 if ((SYMBOLP (value
)
2960 && !EQ (value
, Qnil
))
2961 /* Strike-through color. */
2963 && SCHARS (value
) == 0))
2964 signal_error ("Invalid face strike-through", value
);
2966 old_value
= LFACE_STRIKE_THROUGH (lface
);
2967 LFACE_STRIKE_THROUGH (lface
) = value
;
2969 else if (EQ (attr
, QCbox
))
2973 /* Allow t meaning a simple box of width 1 in foreground color
2976 value
= make_number (1);
2978 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2980 else if (NILP (value
))
2982 else if (INTEGERP (value
))
2983 valid_p
= XINT (value
) != 0;
2984 else if (STRINGP (value
))
2985 valid_p
= SCHARS (value
) > 0;
2986 else if (CONSP (value
))
3002 if (EQ (k
, QCline_width
))
3004 if (!INTEGERP (v
) || XINT (v
) == 0)
3007 else if (EQ (k
, QCcolor
))
3009 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3012 else if (EQ (k
, QCstyle
))
3014 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3021 valid_p
= NILP (tem
);
3027 signal_error ("Invalid face box", value
);
3029 old_value
= LFACE_BOX (lface
);
3030 LFACE_BOX (lface
) = value
;
3032 else if (EQ (attr
, QCinverse_video
)
3033 || EQ (attr
, QCreverse_video
))
3035 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3037 CHECK_SYMBOL (value
);
3038 if (!EQ (value
, Qt
) && !NILP (value
))
3039 signal_error ("Invalid inverse-video face attribute value", value
);
3041 old_value
= LFACE_INVERSE (lface
);
3042 LFACE_INVERSE (lface
) = value
;
3044 else if (EQ (attr
, QCforeground
))
3046 /* Compatibility with 20.x. */
3048 value
= Qunspecified
;
3049 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3051 /* Don't check for valid color names here because it depends
3052 on the frame (display) whether the color will be valid
3053 when the face is realized. */
3054 CHECK_STRING (value
);
3055 if (SCHARS (value
) == 0)
3056 signal_error ("Empty foreground color value", value
);
3058 old_value
= LFACE_FOREGROUND (lface
);
3059 LFACE_FOREGROUND (lface
) = value
;
3061 else if (EQ (attr
, QCbackground
))
3063 /* Compatibility with 20.x. */
3065 value
= Qunspecified
;
3066 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3068 /* Don't check for valid color names here because it depends
3069 on the frame (display) whether the color will be valid
3070 when the face is realized. */
3071 CHECK_STRING (value
);
3072 if (SCHARS (value
) == 0)
3073 signal_error ("Empty background color value", value
);
3075 old_value
= LFACE_BACKGROUND (lface
);
3076 LFACE_BACKGROUND (lface
) = value
;
3078 else if (EQ (attr
, QCstipple
))
3080 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3081 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3083 && NILP (Fbitmap_spec_p (value
)))
3084 signal_error ("Invalid stipple attribute", value
);
3085 old_value
= LFACE_STIPPLE (lface
);
3086 LFACE_STIPPLE (lface
) = value
;
3087 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3089 else if (EQ (attr
, QCwidth
))
3091 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3093 CHECK_SYMBOL (value
);
3094 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3095 signal_error ("Invalid face width", value
);
3097 old_value
= LFACE_SWIDTH (lface
);
3098 LFACE_SWIDTH (lface
) = value
;
3099 prop_index
= FONT_WIDTH_INDEX
;
3101 else if (EQ (attr
, QCfont
))
3103 #ifdef HAVE_WINDOW_SYSTEM
3104 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3106 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3110 old_value
= LFACE_FONT (lface
);
3111 if (! FONTP (value
))
3113 if (STRINGP (value
))
3115 Lisp_Object name
= value
;
3116 int fontset
= fs_query_fontset (name
, 0);
3119 name
= fontset_ascii (fontset
);
3120 value
= font_spec_from_name (name
);
3122 signal_error ("Invalid font name", name
);
3125 signal_error ("Invalid font or font-spec", value
);
3128 f
= XFRAME (selected_frame
);
3131 if (! FONT_OBJECT_P (value
))
3133 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3134 Lisp_Object font_object
;
3136 font_object
= font_load_for_lface (f
, attrs
, value
);
3137 if (NILP (font_object
))
3138 signal_error ("Font not available", value
);
3139 value
= font_object
;
3141 set_lface_from_font (f
, lface
, value
, 1);
3144 LFACE_FONT (lface
) = value
;
3146 #endif /* HAVE_WINDOW_SYSTEM */
3148 else if (EQ (attr
, QCfontset
))
3150 #ifdef HAVE_WINDOW_SYSTEM
3151 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3155 old_value
= LFACE_FONTSET (lface
);
3156 tmp
= Fquery_fontset (value
, Qnil
);
3158 signal_error ("Invalid fontset name", value
);
3159 LFACE_FONTSET (lface
) = value
= tmp
;
3161 #endif /* HAVE_WINDOW_SYSTEM */
3163 else if (EQ (attr
, QCinherit
))
3166 if (SYMBOLP (value
))
3169 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3170 if (!SYMBOLP (XCAR (tail
)))
3173 LFACE_INHERIT (lface
) = value
;
3175 signal_error ("Invalid face inheritance", value
);
3177 else if (EQ (attr
, QCbold
))
3179 old_value
= LFACE_WEIGHT (lface
);
3180 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3181 prop_index
= FONT_WEIGHT_INDEX
;
3183 else if (EQ (attr
, QCitalic
))
3186 old_value
= LFACE_SLANT (lface
);
3187 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3188 prop_index
= FONT_SLANT_INDEX
;
3191 signal_error ("Invalid face attribute name", attr
);
3195 /* If a font-related attribute other than QCfont and QCfontset
3196 is specified, and if the original QCfont attribute has a font
3197 (font-spec or font-object), set the corresponding property in
3198 the font to nil so that the font selector doesn't think that
3199 the attribute is mandatory. Also, clear the average
3201 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3204 /* Changing a named face means that all realized faces depending on
3205 that face are invalid. Since we cannot tell which realized faces
3206 depend on the face, make sure they are all removed. This is done
3207 by incrementing face_change_count. The next call to
3208 init_iterator will then free realized faces. */
3210 && NILP (Fget (face
, Qface_no_inherit
))
3211 && NILP (Fequal (old_value
, value
)))
3213 ++face_change_count
;
3214 ++windows_or_buffers_changed
;
3217 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3218 && NILP (Fequal (old_value
, value
)))
3224 if (EQ (face
, Qdefault
))
3226 #ifdef HAVE_WINDOW_SYSTEM
3227 /* Changed font-related attributes of the `default' face are
3228 reflected in changed `font' frame parameters. */
3230 && (prop_index
|| EQ (attr
, QCfont
))
3231 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3232 set_font_frame_param (frame
, lface
);
3234 #endif /* HAVE_WINDOW_SYSTEM */
3236 if (EQ (attr
, QCforeground
))
3237 param
= Qforeground_color
;
3238 else if (EQ (attr
, QCbackground
))
3239 param
= Qbackground_color
;
3241 #ifdef HAVE_WINDOW_SYSTEM
3243 else if (EQ (face
, Qscroll_bar
))
3245 /* Changing the colors of `scroll-bar' sets frame parameters
3246 `scroll-bar-foreground' and `scroll-bar-background'. */
3247 if (EQ (attr
, QCforeground
))
3248 param
= Qscroll_bar_foreground
;
3249 else if (EQ (attr
, QCbackground
))
3250 param
= Qscroll_bar_background
;
3252 #endif /* not WINDOWSNT */
3253 else if (EQ (face
, Qborder
))
3255 /* Changing background color of `border' sets frame parameter
3257 if (EQ (attr
, QCbackground
))
3258 param
= Qborder_color
;
3260 else if (EQ (face
, Qcursor
))
3262 /* Changing background color of `cursor' sets frame parameter
3264 if (EQ (attr
, QCbackground
))
3265 param
= Qcursor_color
;
3267 else if (EQ (face
, Qmouse
))
3269 /* Changing background color of `mouse' sets frame parameter
3271 if (EQ (attr
, QCbackground
))
3272 param
= Qmouse_color
;
3274 #endif /* HAVE_WINDOW_SYSTEM */
3275 else if (EQ (face
, Qmenu
))
3277 /* Indicate that we have to update the menu bar when
3278 realizing faces on FRAME. FRAME t change the
3279 default for new frames. We do this by setting
3280 setting the flag in new face caches */
3283 struct frame
*f
= XFRAME (frame
);
3284 if (FRAME_FACE_CACHE (f
) == NULL
)
3285 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3286 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3289 menu_face_changed_default
= 1;
3295 /* Update `default-frame-alist', which is used for new frames. */
3297 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3300 /* Update the current frame's parameters. */
3303 cons
= XCAR (Vparam_value_alist
);
3304 XSETCAR (cons
, param
);
3305 XSETCDR (cons
, value
);
3306 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3315 /* Update the corresponding face when frame parameter PARAM on frame F
3316 has been assigned the value NEW_VALUE. */
3319 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
, Lisp_Object new_value
)
3321 Lisp_Object face
= Qnil
;
3324 /* If there are no faces yet, give up. This is the case when called
3325 from Fx_create_frame, and we do the necessary things later in
3326 face-set-after-frame-defaults. */
3327 if (NILP (f
->face_alist
))
3330 if (EQ (param
, Qforeground_color
))
3333 lface
= lface_from_face_name (f
, face
, 1);
3334 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3335 ? new_value
: Qunspecified
);
3336 realize_basic_faces (f
);
3338 else if (EQ (param
, Qbackground_color
))
3342 /* Changing the background color might change the background
3343 mode, so that we have to load new defface specs.
3344 Call frame-update-face-colors to do that. */
3345 XSETFRAME (frame
, f
);
3346 call1 (Qframe_set_background_mode
, frame
);
3349 lface
= lface_from_face_name (f
, face
, 1);
3350 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3351 ? new_value
: Qunspecified
);
3352 realize_basic_faces (f
);
3354 #ifdef HAVE_WINDOW_SYSTEM
3355 else if (EQ (param
, Qborder_color
))
3358 lface
= lface_from_face_name (f
, face
, 1);
3359 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3360 ? new_value
: Qunspecified
);
3362 else if (EQ (param
, Qcursor_color
))
3365 lface
= lface_from_face_name (f
, face
, 1);
3366 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3367 ? new_value
: Qunspecified
);
3369 else if (EQ (param
, Qmouse_color
))
3372 lface
= lface_from_face_name (f
, face
, 1);
3373 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3374 ? new_value
: Qunspecified
);
3378 /* Changing a named face means that all realized faces depending on
3379 that face are invalid. Since we cannot tell which realized faces
3380 depend on the face, make sure they are all removed. This is done
3381 by incrementing face_change_count. The next call to
3382 init_iterator will then free realized faces. */
3384 && NILP (Fget (face
, Qface_no_inherit
)))
3386 ++face_change_count
;
3387 ++windows_or_buffers_changed
;
3392 #ifdef HAVE_WINDOW_SYSTEM
3394 /* Set the `font' frame parameter of FRAME determined from the
3395 font-object set in `default' face attributes LFACE. */
3398 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3400 struct frame
*f
= XFRAME (frame
);
3403 if (FRAME_WINDOW_P (f
)
3404 /* Don't do anything if the font is `unspecified'. This can
3405 happen during frame creation. */
3406 && (font
= LFACE_FONT (lface
),
3407 ! UNSPECIFIEDP (font
)))
3409 if (FONT_SPEC_P (font
))
3411 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3414 LFACE_FONT (lface
) = font
;
3416 f
->default_face_done_p
= 0;
3417 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3422 /* Get the value of X resource RESOURCE, class CLASS for the display
3423 of frame FRAME. This is here because ordinary `x-get-resource'
3424 doesn't take a frame argument. */
3426 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3427 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3428 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3430 Lisp_Object value
= Qnil
;
3431 CHECK_STRING (resource
);
3432 CHECK_STRING (class);
3433 CHECK_LIVE_FRAME (frame
);
3435 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3436 resource
, class, Qnil
, Qnil
);
3442 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3443 If VALUE is "on" or "true", return t. If VALUE is "off" or
3444 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3445 error; if SIGNAL_P is zero, return 0. */
3448 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3450 Lisp_Object result
= make_number (0);
3452 xassert (STRINGP (value
));
3454 if (xstrcasecmp (SSDATA (value
), "on") == 0
3455 || xstrcasecmp (SSDATA (value
), "true") == 0)
3457 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3458 || xstrcasecmp (SSDATA (value
), "false") == 0)
3460 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3461 result
= Qunspecified
;
3463 signal_error ("Invalid face attribute value from X resource", value
);
3469 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3470 Finternal_set_lisp_face_attribute_from_resource
,
3471 Sinternal_set_lisp_face_attribute_from_resource
,
3472 3, 4, 0, doc
: /* */)
3473 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3475 CHECK_SYMBOL (face
);
3476 CHECK_SYMBOL (attr
);
3477 CHECK_STRING (value
);
3479 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3480 value
= Qunspecified
;
3481 else if (EQ (attr
, QCheight
))
3483 value
= Fstring_to_number (value
, make_number (10));
3484 if (XINT (value
) <= 0)
3485 signal_error ("Invalid face height from X resource", value
);
3487 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3488 value
= face_boolean_x_resource_value (value
, 1);
3489 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3490 value
= intern (SSDATA (value
));
3491 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3492 value
= face_boolean_x_resource_value (value
, 1);
3493 else if (EQ (attr
, QCunderline
)
3494 || EQ (attr
, QCoverline
)
3495 || EQ (attr
, QCstrike_through
))
3497 Lisp_Object boolean_value
;
3499 /* If the result of face_boolean_x_resource_value is t or nil,
3500 VALUE does NOT specify a color. */
3501 boolean_value
= face_boolean_x_resource_value (value
, 0);
3502 if (SYMBOLP (boolean_value
))
3503 value
= boolean_value
;
3505 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3506 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3508 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3511 #endif /* HAVE_WINDOW_SYSTEM */
3514 /***********************************************************************
3516 ***********************************************************************/
3518 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3520 /* Make menus on frame F appear as specified by the `menu' face. */
3523 x_update_menu_appearance (struct frame
*f
)
3525 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3529 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3533 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3534 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3535 const char *myname
= SSDATA (Vx_resource_name
);
3538 const char *popup_path
= "popup_menu";
3540 const char *popup_path
= "menu.popup";
3543 if (STRINGP (LFACE_FOREGROUND (lface
)))
3545 sprintf (line
, "%s.%s*foreground: %s",
3547 SDATA (LFACE_FOREGROUND (lface
)));
3548 XrmPutLineResource (&rdb
, line
);
3549 sprintf (line
, "%s.pane.menubar*foreground: %s",
3550 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3551 XrmPutLineResource (&rdb
, line
);
3555 if (STRINGP (LFACE_BACKGROUND (lface
)))
3557 sprintf (line
, "%s.%s*background: %s",
3559 SDATA (LFACE_BACKGROUND (lface
)));
3560 XrmPutLineResource (&rdb
, line
);
3561 sprintf (line
, "%s.pane.menubar*background: %s",
3562 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3563 XrmPutLineResource (&rdb
, line
);
3568 /* On Solaris 5.8, it's been reported that the `menu' face
3569 can be unspecified here, during startup. Why this
3570 happens remains unknown. -- cyd */
3571 && FONTP (LFACE_FONT (lface
))
3572 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3573 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3574 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3575 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3576 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3577 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3579 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3581 const char *suffix
= "List";
3584 #if defined HAVE_X_I18N
3586 const char *suffix
= "Set";
3588 const char *suffix
= "";
3595 #if defined HAVE_X_I18N
3596 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3598 char *fontsetname
= SSDATA (xlfd
);
3600 sprintf (line
, "%s.pane.menubar*font%s: %s",
3601 myname
, suffix
, fontsetname
);
3602 XrmPutLineResource (&rdb
, line
);
3603 sprintf (line
, "%s.%s*font%s: %s",
3604 myname
, popup_path
, suffix
, fontsetname
);
3605 XrmPutLineResource (&rdb
, line
);
3607 if (fontsetname
!= SSDATA (xlfd
))
3608 xfree (fontsetname
);
3612 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3613 free_frame_menubar (f
);
3617 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3620 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3621 Sface_attribute_relative_p
,
3623 doc
: /* Check whether a face attribute value is relative.
3624 Specifically, this function returns t if the attribute ATTRIBUTE
3625 with the value VALUE is relative.
3627 A relative value is one that doesn't entirely override whatever is
3628 inherited from another face. For most possible attributes,
3629 the only relative value that users see is `unspecified'.
3630 However, for :height, floating point values are also relative. */)
3631 (Lisp_Object attribute
, Lisp_Object value
)
3633 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3635 else if (EQ (attribute
, QCheight
))
3636 return INTEGERP (value
) ? Qnil
: Qt
;
3641 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3643 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3644 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3645 the result will be absolute, otherwise it will be relative. */)
3646 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3648 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3650 else if (EQ (attribute
, QCheight
))
3651 return merge_face_heights (value1
, value2
, value1
);
3657 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3658 Sinternal_get_lisp_face_attribute
,
3660 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3661 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3662 face attribute name, signal an error.
3663 If the optional argument FRAME is given, report on face SYMBOL in that
3664 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3665 frames). If FRAME is omitted or nil, use the selected frame. */)
3666 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3668 Lisp_Object lface
, value
= Qnil
;
3670 CHECK_SYMBOL (symbol
);
3671 CHECK_SYMBOL (keyword
);
3674 lface
= lface_from_face_name (NULL
, symbol
, 1);
3678 frame
= selected_frame
;
3679 CHECK_LIVE_FRAME (frame
);
3680 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3683 if (EQ (keyword
, QCfamily
))
3684 value
= LFACE_FAMILY (lface
);
3685 else if (EQ (keyword
, QCfoundry
))
3686 value
= LFACE_FOUNDRY (lface
);
3687 else if (EQ (keyword
, QCheight
))
3688 value
= LFACE_HEIGHT (lface
);
3689 else if (EQ (keyword
, QCweight
))
3690 value
= LFACE_WEIGHT (lface
);
3691 else if (EQ (keyword
, QCslant
))
3692 value
= LFACE_SLANT (lface
);
3693 else if (EQ (keyword
, QCunderline
))
3694 value
= LFACE_UNDERLINE (lface
);
3695 else if (EQ (keyword
, QCoverline
))
3696 value
= LFACE_OVERLINE (lface
);
3697 else if (EQ (keyword
, QCstrike_through
))
3698 value
= LFACE_STRIKE_THROUGH (lface
);
3699 else if (EQ (keyword
, QCbox
))
3700 value
= LFACE_BOX (lface
);
3701 else if (EQ (keyword
, QCinverse_video
)
3702 || EQ (keyword
, QCreverse_video
))
3703 value
= LFACE_INVERSE (lface
);
3704 else if (EQ (keyword
, QCforeground
))
3705 value
= LFACE_FOREGROUND (lface
);
3706 else if (EQ (keyword
, QCbackground
))
3707 value
= LFACE_BACKGROUND (lface
);
3708 else if (EQ (keyword
, QCstipple
))
3709 value
= LFACE_STIPPLE (lface
);
3710 else if (EQ (keyword
, QCwidth
))
3711 value
= LFACE_SWIDTH (lface
);
3712 else if (EQ (keyword
, QCinherit
))
3713 value
= LFACE_INHERIT (lface
);
3714 else if (EQ (keyword
, QCfont
))
3715 value
= LFACE_FONT (lface
);
3716 else if (EQ (keyword
, QCfontset
))
3717 value
= LFACE_FONTSET (lface
);
3719 signal_error ("Invalid face attribute name", keyword
);
3721 if (IGNORE_DEFFACE_P (value
))
3722 return Qunspecified
;
3728 DEFUN ("internal-lisp-face-attribute-values",
3729 Finternal_lisp_face_attribute_values
,
3730 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3731 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3732 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3735 Lisp_Object result
= Qnil
;
3737 CHECK_SYMBOL (attr
);
3739 if (EQ (attr
, QCunderline
))
3740 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3741 else if (EQ (attr
, QCoverline
))
3742 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3743 else if (EQ (attr
, QCstrike_through
))
3744 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3745 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3746 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3752 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3753 Sinternal_merge_in_global_face
, 2, 2, 0,
3754 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3755 Default face attributes override any local face attributes. */)
3756 (Lisp_Object face
, Lisp_Object frame
)
3759 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3760 struct frame
*f
= XFRAME (frame
);
3762 CHECK_LIVE_FRAME (frame
);
3763 global_lface
= lface_from_face_name (NULL
, face
, 1);
3764 local_lface
= lface_from_face_name (f
, face
, 0);
3765 if (NILP (local_lface
))
3766 local_lface
= Finternal_make_lisp_face (face
, frame
);
3768 /* Make every specified global attribute override the local one.
3769 BEWARE!! This is only used from `face-set-after-frame-default' where
3770 the local frame is defined from default specs in `face-defface-spec'
3771 and those should be overridden by global settings. Hence the strange
3772 "global before local" priority. */
3773 lvec
= XVECTOR (local_lface
)->contents
;
3774 gvec
= XVECTOR (global_lface
)->contents
;
3775 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3776 if (IGNORE_DEFFACE_P (gvec
[i
]))
3777 lvec
[i
] = Qunspecified
;
3778 else if (! UNSPECIFIEDP (gvec
[i
]))
3781 /* If the default face was changed, update the face cache and the
3782 `font' frame parameter. */
3783 if (EQ (face
, Qdefault
))
3785 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3786 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3787 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3789 /* This can be NULL (e.g., in batch mode). */
3792 /* Ensure that the face vector is fully specified by merging
3793 the previously-cached vector. */
3794 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3795 merge_face_vectors (f
, lvec
, attrs
, 0);
3796 memcpy (lvec
, attrs
, sizeof attrs
);
3797 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3799 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3800 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3801 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3802 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3803 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3804 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3805 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3808 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3809 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3813 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3814 Fmodify_frame_parameters (frame
,
3815 Fcons (Fcons (Qforeground_color
,
3816 gvec
[LFACE_FOREGROUND_INDEX
]),
3819 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3820 Fmodify_frame_parameters (frame
,
3821 Fcons (Fcons (Qbackground_color
,
3822 gvec
[LFACE_BACKGROUND_INDEX
]),
3831 /* The following function is implemented for compatibility with 20.2.
3832 The function is used in x-resolve-fonts when it is asked to
3833 return fonts with the same size as the font of a face. This is
3834 done in fontset.el. */
3836 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3837 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3838 The font name is, by default, for ASCII characters.
3839 If the optional argument FRAME is given, report on face FACE in that frame.
3840 If FRAME is t, report on the defaults for face FACE (for new frames).
3841 The font default for a face is either nil, or a list
3842 of the form (bold), (italic) or (bold italic).
3843 If FRAME is omitted or nil, use the selected frame. And, in this case,
3844 if the optional third argument CHARACTER is given,
3845 return the font name used for CHARACTER. */)
3846 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3850 Lisp_Object result
= Qnil
;
3851 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3853 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3854 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3855 result
= Fcons (Qbold
, result
);
3857 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3858 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3859 result
= Fcons (Qitalic
, result
);
3865 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3866 int face_id
= lookup_named_face (f
, face
, 1);
3867 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3871 #ifdef HAVE_WINDOW_SYSTEM
3872 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3874 CHECK_CHARACTER (character
);
3875 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3876 fface
= FACE_FROM_ID (f
, face_id
);
3879 ? fface
->font
->props
[FONT_NAME_INDEX
]
3881 #else /* !HAVE_WINDOW_SYSTEM */
3882 return build_string (FRAME_MSDOS_P (f
)
3884 : FRAME_W32_P (f
) ? "w32term"
3891 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3892 all attributes are `equal'. Tries to be fast because this function
3893 is called quite often. */
3896 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3898 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3899 and the other is specified. */
3900 if (XTYPE (v1
) != XTYPE (v2
))
3909 if (SBYTES (v1
) != SBYTES (v2
))
3912 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3919 return !NILP (Fequal (v1
, v2
));
3924 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3925 all attributes are `equal'. Tries to be fast because this function
3926 is called quite often. */
3929 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3933 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3934 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3940 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3941 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3942 doc
: /* True if FACE1 and FACE2 are equal.
3943 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3944 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3945 If FRAME is omitted or nil, use the selected frame. */)
3946 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3950 Lisp_Object lface1
, lface2
;
3955 /* Don't use check_x_frame here because this function is called
3956 before X frames exist. At that time, if FRAME is nil,
3957 selected_frame will be used which is the frame dumped with
3958 Emacs. That frame is not an X frame. */
3959 f
= frame_or_selected_frame (frame
, 2);
3961 lface1
= lface_from_face_name (f
, face1
, 1);
3962 lface2
= lface_from_face_name (f
, face2
, 1);
3963 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3964 XVECTOR (lface2
)->contents
);
3965 return equal_p
? Qt
: Qnil
;
3969 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3970 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3971 doc
: /* True if FACE has no attribute specified.
3972 If the optional argument FRAME is given, report on face FACE in that frame.
3973 If FRAME is t, report on the defaults for face FACE (for new frames).
3974 If FRAME is omitted or nil, use the selected frame. */)
3975 (Lisp_Object face
, Lisp_Object frame
)
3982 frame
= selected_frame
;
3983 CHECK_LIVE_FRAME (frame
);
3987 lface
= lface_from_face_name (NULL
, face
, 1);
3989 lface
= lface_from_face_name (f
, face
, 1);
3991 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3992 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3995 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3999 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4001 doc
: /* Return an alist of frame-local faces defined on FRAME.
4002 For internal use only. */)
4005 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4006 return f
->face_alist
;
4010 /* Return a hash code for Lisp string STRING with case ignored. Used
4011 below in computing a hash value for a Lisp face. */
4013 static inline unsigned
4014 hash_string_case_insensitive (Lisp_Object string
)
4016 const unsigned char *s
;
4018 xassert (STRINGP (string
));
4019 for (s
= SDATA (string
); *s
; ++s
)
4020 hash
= (hash
<< 1) ^ tolower (*s
);
4025 /* Return a hash code for face attribute vector V. */
4027 static inline unsigned
4028 lface_hash (Lisp_Object
*v
)
4030 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4031 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4032 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4033 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4034 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4035 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4036 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4037 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4041 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4042 considering charsets/registries). They do if they specify the same
4043 family, point size, weight, width, slant, and font. Both
4044 LFACE1 and LFACE2 must be fully-specified. */
4047 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4049 xassert (lface_fully_specified_p (lface1
)
4050 && lface_fully_specified_p (lface2
));
4051 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4052 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4053 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4054 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4055 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4056 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4057 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4058 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4059 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4060 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4061 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4062 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4063 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4064 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4070 /***********************************************************************
4072 ***********************************************************************/
4074 /* Allocate and return a new realized face for Lisp face attribute
4077 static struct face
*
4078 make_realized_face (Lisp_Object
*attr
)
4080 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4081 memset (face
, 0, sizeof *face
);
4082 face
->ascii_face
= face
;
4083 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4088 /* Free realized face FACE, including its X resources. FACE may
4092 free_realized_face (struct frame
*f
, struct face
*face
)
4096 #ifdef HAVE_WINDOW_SYSTEM
4097 if (FRAME_WINDOW_P (f
))
4099 /* Free fontset of FACE if it is ASCII face. */
4100 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4101 free_face_fontset (f
, face
);
4106 font_done_for_face (f
, face
);
4107 x_free_gc (f
, face
->gc
);
4112 free_face_colors (f
, face
);
4113 x_destroy_bitmap (f
, face
->stipple
);
4115 #endif /* HAVE_WINDOW_SYSTEM */
4122 /* Prepare face FACE for subsequent display on frame F. This
4123 allocated GCs if they haven't been allocated yet or have been freed
4124 by clearing the face cache. */
4127 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4129 #ifdef HAVE_WINDOW_SYSTEM
4130 xassert (FRAME_WINDOW_P (f
));
4135 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4137 xgcv
.foreground
= face
->foreground
;
4138 xgcv
.background
= face
->background
;
4139 #ifdef HAVE_X_WINDOWS
4140 xgcv
.graphics_exposures
= False
;
4144 #ifdef HAVE_X_WINDOWS
4147 xgcv
.fill_style
= FillOpaqueStippled
;
4148 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4149 mask
|= GCFillStyle
| GCStipple
;
4152 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4154 font_prepare_for_face (f
, face
);
4157 #endif /* HAVE_WINDOW_SYSTEM */
4161 /* Returns the `distance' between the colors X and Y. */
4164 color_distance (XColor
*x
, XColor
*y
)
4166 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4167 Quoting from that paper:
4169 This formula has results that are very close to L*u*v* (with the
4170 modified lightness curve) and, more importantly, it is a more even
4171 algorithm: it does not have a range of colours where it suddenly
4172 gives far from optimal results.
4174 See <http://www.compuphase.com/cmetric.htm> for more info. */
4176 long r
= (x
->red
- y
->red
) >> 8;
4177 long g
= (x
->green
- y
->green
) >> 8;
4178 long b
= (x
->blue
- y
->blue
) >> 8;
4179 long r_mean
= (x
->red
+ y
->red
) >> 9;
4182 (((512 + r_mean
) * r
* r
) >> 8)
4184 + (((767 - r_mean
) * b
* b
) >> 8);
4188 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4189 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4190 COLOR1 and COLOR2 may be either strings containing the color name,
4191 or lists of the form (RED GREEN BLUE).
4192 If FRAME is unspecified or nil, the current frame is used. */)
4193 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4196 XColor cdef1
, cdef2
;
4199 frame
= selected_frame
;
4200 CHECK_LIVE_FRAME (frame
);
4203 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4204 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4205 signal_error ("Invalid color", color1
);
4206 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4207 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4208 signal_error ("Invalid color", color2
);
4210 return make_number (color_distance (&cdef1
, &cdef2
));
4214 /***********************************************************************
4216 ***********************************************************************/
4218 /* Return a new face cache for frame F. */
4220 static struct face_cache
*
4221 make_face_cache (struct frame
*f
)
4223 struct face_cache
*c
;
4226 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4227 memset (c
, 0, sizeof *c
);
4228 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4229 c
->buckets
= (struct face
**) xmalloc (size
);
4230 memset (c
->buckets
, 0, size
);
4232 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4234 c
->menu_face_changed_p
= menu_face_changed_default
;
4239 /* Clear out all graphics contexts for all realized faces, except for
4240 the basic faces. This should be done from time to time just to avoid
4241 keeping too many graphics contexts that are no longer needed. */
4244 clear_face_gcs (struct face_cache
*c
)
4246 if (c
&& FRAME_WINDOW_P (c
->f
))
4248 #ifdef HAVE_WINDOW_SYSTEM
4250 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4252 struct face
*face
= c
->faces_by_id
[i
];
4253 if (face
&& face
->gc
)
4257 font_done_for_face (c
->f
, face
);
4258 x_free_gc (c
->f
, face
->gc
);
4263 #endif /* HAVE_WINDOW_SYSTEM */
4268 /* Free all realized faces in face cache C, including basic faces.
4269 C may be null. If faces are freed, make sure the frame's current
4270 matrix is marked invalid, so that a display caused by an expose
4271 event doesn't try to use faces we destroyed. */
4274 free_realized_faces (struct face_cache
*c
)
4279 struct frame
*f
= c
->f
;
4281 /* We must block input here because we can't process X events
4282 safely while only some faces are freed, or when the frame's
4283 current matrix still references freed faces. */
4286 for (i
= 0; i
< c
->used
; ++i
)
4288 free_realized_face (f
, c
->faces_by_id
[i
]);
4289 c
->faces_by_id
[i
] = NULL
;
4293 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4294 memset (c
->buckets
, 0, size
);
4296 /* Must do a thorough redisplay the next time. Mark current
4297 matrices as invalid because they will reference faces freed
4298 above. This function is also called when a frame is
4299 destroyed. In this case, the root window of F is nil. */
4300 if (WINDOWP (f
->root_window
))
4302 clear_current_matrices (f
);
4303 ++windows_or_buffers_changed
;
4311 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4312 This is done after attributes of a named face have been changed,
4313 because we can't tell which realized faces depend on that face. */
4316 free_all_realized_faces (Lisp_Object frame
)
4321 FOR_EACH_FRAME (rest
, frame
)
4322 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4325 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4329 /* Free face cache C and faces in it, including their X resources. */
4332 free_face_cache (struct face_cache
*c
)
4336 free_realized_faces (c
);
4338 xfree (c
->faces_by_id
);
4344 /* Cache realized face FACE in face cache C. HASH is the hash value
4345 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4346 FACE), insert the new face to the beginning of the collision list
4347 of the face hash table of C. Otherwise, add the new face to the
4348 end of the collision list. This way, lookup_face can quickly find
4349 that a requested face is not cached. */
4352 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4354 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4358 if (face
->ascii_face
!= face
)
4360 struct face
*last
= c
->buckets
[i
];
4371 c
->buckets
[i
] = face
;
4372 face
->prev
= face
->next
= NULL
;
4378 face
->next
= c
->buckets
[i
];
4380 face
->next
->prev
= face
;
4381 c
->buckets
[i
] = face
;
4384 /* Find a free slot in C->faces_by_id and use the index of the free
4385 slot as FACE->id. */
4386 for (i
= 0; i
< c
->used
; ++i
)
4387 if (c
->faces_by_id
[i
] == NULL
)
4392 /* Check that FACE got a unique id. */
4397 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4398 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4404 #endif /* GLYPH_DEBUG */
4406 /* Maybe enlarge C->faces_by_id. */
4409 if (c
->used
== c
->size
)
4412 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4413 if (new_size
== c
->size
)
4414 abort (); /* Alternatives? ++kfs */
4415 sz
= new_size
* sizeof *c
->faces_by_id
;
4416 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4422 c
->faces_by_id
[i
] = face
;
4426 /* Remove face FACE from cache C. */
4429 uncache_face (struct face_cache
*c
, struct face
*face
)
4431 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4434 face
->prev
->next
= face
->next
;
4436 c
->buckets
[i
] = face
->next
;
4439 face
->next
->prev
= face
->prev
;
4441 c
->faces_by_id
[face
->id
] = NULL
;
4442 if (face
->id
== c
->used
)
4447 /* Look up a realized face with face attributes ATTR in the face cache
4448 of frame F. The face will be used to display ASCII characters.
4449 Value is the ID of the face found. If no suitable face is found,
4450 realize a new one. */
4453 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4455 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4460 xassert (cache
!= NULL
);
4461 check_lface_attrs (attr
);
4463 /* Look up ATTR in the face cache. */
4464 hash
= lface_hash (attr
);
4465 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4467 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4469 if (face
->ascii_face
!= face
)
4471 /* There's no more ASCII face. */
4475 if (face
->hash
== hash
4476 && lface_equal_p (face
->lface
, attr
))
4480 /* If not found, realize a new face. */
4482 face
= realize_face (cache
, attr
, -1);
4485 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4486 #endif /* GLYPH_DEBUG */
4491 #ifdef HAVE_WINDOW_SYSTEM
4492 /* Look up a realized face that has the same attributes as BASE_FACE
4493 except for the font in the face cache of frame F. If FONT-OBJECT
4494 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4495 the face has no font. Value is the ID of the face found. If no
4496 suitable face is found, realize a new one. */
4499 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4501 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4506 xassert (cache
!= NULL
);
4507 base_face
= base_face
->ascii_face
;
4508 hash
= lface_hash (base_face
->lface
);
4509 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4511 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4513 if (face
->ascii_face
== face
)
4515 if (face
->ascii_face
== base_face
4516 && face
->font
== (NILP (font_object
) ? NULL
4517 : XFONT_OBJECT (font_object
))
4518 && lface_equal_p (face
->lface
, base_face
->lface
))
4522 /* If not found, realize a new face. */
4523 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4526 #endif /* HAVE_WINDOW_SYSTEM */
4528 /* Return the face id of the realized face for named face SYMBOL on
4529 frame F suitable for displaying ASCII characters. Value is -1 if
4530 the face couldn't be determined, which might happen if the default
4531 face isn't realized and cannot be realized. */
4534 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4536 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4537 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4538 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4540 if (default_face
== NULL
)
4542 if (!realize_basic_faces (f
))
4544 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4545 if (default_face
== NULL
)
4546 abort (); /* realize_basic_faces must have set it up */
4549 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4552 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4553 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4555 return lookup_face (f
, attrs
);
4559 /* Return the display face-id of the basic face who's canonical face-id
4560 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4561 basic face has bee remapped via Vface_remapping_alist. This function is
4562 conservative: if something goes wrong, it will simply return FACE_ID
4563 rather than signal an error. */
4566 lookup_basic_face (struct frame
*f
, int face_id
)
4568 Lisp_Object name
, mapping
;
4569 int remapped_face_id
;
4571 if (NILP (Vface_remapping_alist
))
4572 return face_id
; /* Nothing to do. */
4576 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4577 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4578 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4579 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4580 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4581 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4582 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4583 case BORDER_FACE_ID
: name
= Qborder
; break;
4584 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4585 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4586 case MENU_FACE_ID
: name
= Qmenu
; break;
4589 abort (); /* the caller is supposed to pass us a basic face id */
4592 /* Do a quick scan through Vface_remapping_alist, and return immediately
4593 if there is no remapping for face NAME. This is just an optimization
4594 for the very common no-remapping case. */
4595 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4597 return face_id
; /* Give up. */
4599 /* If there is a remapping entry, lookup the face using NAME, which will
4600 handle the remapping too. */
4601 remapped_face_id
= lookup_named_face (f
, name
, 0);
4602 if (remapped_face_id
< 0)
4603 return face_id
; /* Give up. */
4605 return remapped_face_id
;
4609 /* Return a face for charset ASCII that is like the face with id
4610 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4611 STEPS < 0 means larger. Value is the id of the face. */
4614 smaller_face (struct frame
*f
, int face_id
, int steps
)
4616 #ifdef HAVE_WINDOW_SYSTEM
4618 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4619 int pt
, last_pt
, last_height
;
4622 struct face
*new_face
;
4624 /* If not called for an X frame, just return the original face. */
4625 if (FRAME_TERMCAP_P (f
))
4628 /* Try in increments of 1/2 pt. */
4629 delta
= steps
< 0 ? 5 : -5;
4630 steps
= eabs (steps
);
4632 face
= FACE_FROM_ID (f
, face_id
);
4633 memcpy (attrs
, face
->lface
, sizeof attrs
);
4634 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4635 new_face_id
= face_id
;
4636 last_height
= FONT_HEIGHT (face
->font
);
4640 /* Give up if we cannot find a font within 10pt. */
4641 && eabs (last_pt
- pt
) < 100)
4643 /* Look up a face for a slightly smaller/larger font. */
4645 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4646 new_face_id
= lookup_face (f
, attrs
);
4647 new_face
= FACE_FROM_ID (f
, new_face_id
);
4649 /* If height changes, count that as one step. */
4650 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4651 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4654 last_height
= FONT_HEIGHT (new_face
->font
);
4661 #else /* not HAVE_WINDOW_SYSTEM */
4665 #endif /* not HAVE_WINDOW_SYSTEM */
4669 /* Return a face for charset ASCII that is like the face with id
4670 FACE_ID on frame F, but has height HEIGHT. */
4673 face_with_height (struct frame
*f
, int face_id
, int height
)
4675 #ifdef HAVE_WINDOW_SYSTEM
4677 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4679 if (FRAME_TERMCAP_P (f
)
4683 face
= FACE_FROM_ID (f
, face_id
);
4684 memcpy (attrs
, face
->lface
, sizeof attrs
);
4685 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4686 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4687 face_id
= lookup_face (f
, attrs
);
4688 #endif /* HAVE_WINDOW_SYSTEM */
4694 /* Return the face id of the realized face for named face SYMBOL on
4695 frame F suitable for displaying ASCII characters, and use
4696 attributes of the face FACE_ID for attributes that aren't
4697 completely specified by SYMBOL. This is like lookup_named_face,
4698 except that the default attributes come from FACE_ID, not from the
4699 default face. FACE_ID is assumed to be already realized. */
4702 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
, int signal_p
)
4704 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4705 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4706 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4711 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4714 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4715 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4716 return lookup_face (f
, attrs
);
4719 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4720 Sface_attributes_as_vector
, 1, 1, 0,
4721 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4725 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4727 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4734 /***********************************************************************
4735 Face capability testing
4736 ***********************************************************************/
4739 /* If the distance (as returned by color_distance) between two colors is
4740 less than this, then they are considered the same, for determining
4741 whether a color is supported or not. The range of values is 0-65535. */
4743 #define TTY_SAME_COLOR_THRESHOLD 10000
4745 #ifdef HAVE_WINDOW_SYSTEM
4747 /* Return non-zero if all the face attributes in ATTRS are supported
4748 on the window-system frame F.
4750 The definition of `supported' is somewhat heuristic, but basically means
4751 that a face containing all the attributes in ATTRS, when merged with the
4752 default face for display, can be represented in a way that's
4754 \(1) different in appearance than the default face, and
4755 \(2) `close in spirit' to what the attributes specify, if not exact. */
4758 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4760 Lisp_Object
*def_attrs
= def_face
->lface
;
4762 /* Check that other specified attributes are different that the default
4764 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4765 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4766 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4767 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4768 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4769 def_attrs
[LFACE_INVERSE_INDEX
]))
4770 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4771 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4772 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4773 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4774 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4775 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4776 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4777 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4778 def_attrs
[LFACE_STIPPLE_INDEX
]))
4779 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4780 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4781 def_attrs
[LFACE_OVERLINE_INDEX
]))
4782 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4783 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4784 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4785 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4786 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4787 def_attrs
[LFACE_BOX_INDEX
])))
4790 /* Check font-related attributes, as those are the most commonly
4791 "unsupported" on a window-system (because of missing fonts). */
4792 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4793 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4794 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4795 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4796 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4797 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4801 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4804 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4806 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4808 face_id
= lookup_face (f
, merged_attrs
);
4809 face
= FACE_FROM_ID (f
, face_id
);
4812 error ("Cannot make face");
4814 /* If the font is the same, or no font is found, then not
4816 if (face
->font
== def_face
->font
4819 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4820 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4824 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4825 || face
->font
->driver
->case_sensitive
)
4827 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4828 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4829 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4830 s2
, make_number (0), Qnil
, Qt
), Qt
))
4836 /* Everything checks out, this face is supported. */
4840 #endif /* HAVE_WINDOW_SYSTEM */
4842 /* Return non-zero if all the face attributes in ATTRS are supported
4845 The definition of `supported' is somewhat heuristic, but basically means
4846 that a face containing all the attributes in ATTRS, when merged
4847 with the default face for display, can be represented in a way that's
4849 \(1) different in appearance than the default face, and
4850 \(2) `close in spirit' to what the attributes specify, if not exact.
4852 Point (2) implies that a `:weight black' attribute will be satisfied
4853 by any terminal that can display bold, and a `:foreground "yellow"' as
4854 long as the terminal can display a yellowish color, but `:slant italic'
4855 will _not_ be satisfied by the tty display code's automatic
4856 substitution of a `dim' face for italic. */
4859 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4862 Lisp_Object val
, fg
, bg
;
4863 XColor fg_tty_color
, fg_std_color
;
4864 XColor bg_tty_color
, bg_std_color
;
4865 unsigned test_caps
= 0;
4866 Lisp_Object
*def_attrs
= def_face
->lface
;
4869 /* First check some easy-to-check stuff; ttys support none of the
4870 following attributes, so we can just return false if any are requested
4871 (even if `nominal' values are specified, we should still return false,
4872 as that will be the same value that the default face uses). We
4873 consider :slant unsupportable on ttys, even though the face code
4874 actually `fakes' them using a dim attribute if possible. This is
4875 because the faked result is too different from what the face
4877 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4878 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4879 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4880 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4881 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4882 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4883 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4884 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4885 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
4889 /* Test for terminal `capabilities' (non-color character attributes). */
4891 /* font weight (bold/dim) */
4892 val
= attrs
[LFACE_WEIGHT_INDEX
];
4893 if (!UNSPECIFIEDP (val
)
4894 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4896 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4900 if (def_weight
> 100)
4901 return 0; /* same as default */
4902 test_caps
= TTY_CAP_BOLD
;
4904 else if (weight
< 100)
4906 if (def_weight
< 100)
4907 return 0; /* same as default */
4908 test_caps
= TTY_CAP_DIM
;
4910 else if (def_weight
== 100)
4911 return 0; /* same as default */
4915 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4916 if (!UNSPECIFIEDP (val
))
4919 return 0; /* ttys can't use colored underlines */
4920 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4921 return 0; /* same as default */
4923 test_caps
|= TTY_CAP_UNDERLINE
;
4927 val
= attrs
[LFACE_INVERSE_INDEX
];
4928 if (!UNSPECIFIEDP (val
))
4930 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4931 return 0; /* same as default */
4933 test_caps
|= TTY_CAP_INVERSE
;
4937 /* Color testing. */
4939 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4940 we use them when calling `tty_capable_p' below, even if the face
4941 specifies no colors. */
4942 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4943 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4945 /* Check if foreground color is close enough. */
4946 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4949 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4951 if (face_attr_equal_p (fg
, def_fg
))
4952 return 0; /* same as default */
4953 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4954 return 0; /* not a valid color */
4955 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4956 > TTY_SAME_COLOR_THRESHOLD
)
4957 return 0; /* displayed color is too different */
4959 /* Make sure the color is really different than the default. */
4961 XColor def_fg_color
;
4962 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4963 && (color_distance (&fg_tty_color
, &def_fg_color
)
4964 <= TTY_SAME_COLOR_THRESHOLD
))
4969 /* Check if background color is close enough. */
4970 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4973 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4975 if (face_attr_equal_p (bg
, def_bg
))
4976 return 0; /* same as default */
4977 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4978 return 0; /* not a valid color */
4979 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4980 > TTY_SAME_COLOR_THRESHOLD
)
4981 return 0; /* displayed color is too different */
4983 /* Make sure the color is really different than the default. */
4985 XColor def_bg_color
;
4986 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4987 && (color_distance (&bg_tty_color
, &def_bg_color
)
4988 <= TTY_SAME_COLOR_THRESHOLD
))
4993 /* If both foreground and background are requested, see if the
4994 distance between them is OK. We just check to see if the distance
4995 between the tty's foreground and background is close enough to the
4996 distance between the standard foreground and background. */
4997 if (STRINGP (fg
) && STRINGP (bg
))
5000 = (color_distance (&fg_std_color
, &bg_std_color
)
5001 - color_distance (&fg_tty_color
, &bg_tty_color
));
5002 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5003 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5008 /* See if the capabilities we selected above are supported, with the
5010 if (test_caps
!= 0 &&
5011 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5015 /* Hmmm, everything checks out, this terminal must support this face. */
5020 DEFUN ("display-supports-face-attributes-p",
5021 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5023 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5024 The optional argument DISPLAY can be a display name, a frame, or
5025 nil (meaning the selected frame's display).
5027 The definition of `supported' is somewhat heuristic, but basically means
5028 that a face containing all the attributes in ATTRIBUTES, when merged
5029 with the default face for display, can be represented in a way that's
5031 \(1) different in appearance than the default face, and
5032 \(2) `close in spirit' to what the attributes specify, if not exact.
5034 Point (2) implies that a `:weight black' attribute will be satisfied by
5035 any display that can display bold, and a `:foreground \"yellow\"' as long
5036 as it can display a yellowish color, but `:slant italic' will _not_ be
5037 satisfied by the tty display code's automatic substitution of a `dim'
5038 face for italic. */)
5039 (Lisp_Object attributes
, Lisp_Object display
)
5041 int supports
= 0, i
;
5044 struct face
*def_face
;
5045 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5047 if (noninteractive
|| !initialized
)
5048 /* We may not be able to access low-level face information in batch
5049 mode, or before being dumped, and this function is not going to
5050 be very useful in those cases anyway, so just give up. */
5054 frame
= selected_frame
;
5055 else if (FRAMEP (display
))
5059 /* Find any frame on DISPLAY. */
5060 Lisp_Object fl_tail
;
5063 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5065 frame
= XCAR (fl_tail
);
5066 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5067 XFRAME (frame
)->param_alist
)),
5073 CHECK_LIVE_FRAME (frame
);
5076 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5077 attrs
[i
] = Qunspecified
;
5078 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5080 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5081 if (def_face
== NULL
)
5083 if (! realize_basic_faces (f
))
5084 error ("Cannot realize default face");
5085 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5086 if (def_face
== NULL
)
5087 abort (); /* realize_basic_faces must have set it up */
5090 /* Dispatch to the appropriate handler. */
5091 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5092 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5093 #ifdef HAVE_WINDOW_SYSTEM
5095 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5098 return supports
? Qt
: Qnil
;
5102 /***********************************************************************
5104 ***********************************************************************/
5106 DEFUN ("internal-set-font-selection-order",
5107 Finternal_set_font_selection_order
,
5108 Sinternal_set_font_selection_order
, 1, 1, 0,
5109 doc
: /* Set font selection order for face font selection to ORDER.
5110 ORDER must be a list of length 4 containing the symbols `:width',
5111 `:height', `:weight', and `:slant'. Face attributes appearing
5112 first in ORDER are matched first, e.g. if `:height' appears before
5113 `:weight' in ORDER, font selection first tries to find a font with
5114 a suitable height, and then tries to match the font weight.
5120 int indices
[DIM (font_sort_order
)];
5123 memset (indices
, 0, sizeof indices
);
5127 CONSP (list
) && i
< DIM (indices
);
5128 list
= XCDR (list
), ++i
)
5130 Lisp_Object attr
= XCAR (list
);
5133 if (EQ (attr
, QCwidth
))
5135 else if (EQ (attr
, QCheight
))
5136 xlfd
= XLFD_POINT_SIZE
;
5137 else if (EQ (attr
, QCweight
))
5139 else if (EQ (attr
, QCslant
))
5144 if (indices
[i
] != 0)
5149 if (!NILP (list
) || i
!= DIM (indices
))
5150 signal_error ("Invalid font sort order", order
);
5151 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5152 if (indices
[i
] == 0)
5153 signal_error ("Invalid font sort order", order
);
5155 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5157 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5158 free_all_realized_faces (Qnil
);
5161 font_update_sort_order (font_sort_order
);
5167 DEFUN ("internal-set-alternative-font-family-alist",
5168 Finternal_set_alternative_font_family_alist
,
5169 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5170 doc
: /* Define alternative font families to try in face font selection.
5171 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5172 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5173 be found. Value is ALIST. */)
5176 Lisp_Object entry
, tail
, tail2
;
5179 alist
= Fcopy_sequence (alist
);
5180 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5182 entry
= XCAR (tail
);
5184 entry
= Fcopy_sequence (entry
);
5185 XSETCAR (tail
, entry
);
5186 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5187 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5190 Vface_alternative_font_family_alist
= alist
;
5191 free_all_realized_faces (Qnil
);
5196 DEFUN ("internal-set-alternative-font-registry-alist",
5197 Finternal_set_alternative_font_registry_alist
,
5198 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5199 doc
: /* Define alternative font registries to try in face font selection.
5200 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5201 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5202 be found. Value is ALIST. */)
5205 Lisp_Object entry
, tail
, tail2
;
5208 alist
= Fcopy_sequence (alist
);
5209 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5211 entry
= XCAR (tail
);
5213 entry
= Fcopy_sequence (entry
);
5214 XSETCAR (tail
, entry
);
5215 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5216 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5218 Vface_alternative_font_registry_alist
= alist
;
5219 free_all_realized_faces (Qnil
);
5224 #ifdef HAVE_WINDOW_SYSTEM
5226 /* Return the fontset id of the base fontset name or alias name given
5227 by the fontset attribute of ATTRS. Value is -1 if the fontset
5228 attribute of ATTRS doesn't name a fontset. */
5231 face_fontset (Lisp_Object
*attrs
)
5235 name
= attrs
[LFACE_FONTSET_INDEX
];
5236 if (!STRINGP (name
))
5238 return fs_query_fontset (name
, 0);
5241 #endif /* HAVE_WINDOW_SYSTEM */
5245 /***********************************************************************
5247 ***********************************************************************/
5249 /* Realize basic faces on frame F. Value is zero if frame parameters
5250 of F don't contain enough information needed to realize the default
5254 realize_basic_faces (struct frame
*f
)
5257 int count
= SPECPDL_INDEX ();
5259 /* Block input here so that we won't be surprised by an X expose
5260 event, for instance, without having the faces set up. */
5262 specbind (Qscalable_fonts_allowed
, Qt
);
5264 if (realize_default_face (f
))
5266 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5267 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5268 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5269 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5270 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5271 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5272 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5273 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5274 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5275 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5276 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5278 /* Reflect changes in the `menu' face in menu bars. */
5279 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5281 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5282 #ifdef USE_X_TOOLKIT
5283 if (FRAME_WINDOW_P (f
))
5284 x_update_menu_appearance (f
);
5291 unbind_to (count
, Qnil
);
5297 /* Realize the default face on frame F. If the face is not fully
5298 specified, make it fully-specified. Attributes of the default face
5299 that are not explicitly specified are taken from frame parameters. */
5302 realize_default_face (struct frame
*f
)
5304 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5306 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5309 /* If the `default' face is not yet known, create it. */
5310 lface
= lface_from_face_name (f
, Qdefault
, 0);
5314 XSETFRAME (frame
, f
);
5315 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5318 #ifdef HAVE_WINDOW_SYSTEM
5319 if (FRAME_WINDOW_P (f
))
5321 Lisp_Object font_object
;
5323 XSETFONT (font_object
, FRAME_FONT (f
));
5324 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5325 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5326 f
->default_face_done_p
= 1;
5328 #endif /* HAVE_WINDOW_SYSTEM */
5330 if (!FRAME_WINDOW_P (f
))
5332 LFACE_FAMILY (lface
) = build_string ("default");
5333 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5334 LFACE_SWIDTH (lface
) = Qnormal
;
5335 LFACE_HEIGHT (lface
) = make_number (1);
5336 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5337 LFACE_WEIGHT (lface
) = Qnormal
;
5338 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5339 LFACE_SLANT (lface
) = Qnormal
;
5340 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5341 LFACE_FONTSET (lface
) = Qnil
;
5344 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5345 LFACE_UNDERLINE (lface
) = Qnil
;
5347 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5348 LFACE_OVERLINE (lface
) = Qnil
;
5350 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5351 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5353 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5354 LFACE_BOX (lface
) = Qnil
;
5356 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5357 LFACE_INVERSE (lface
) = Qnil
;
5359 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5361 /* This function is called so early that colors are not yet
5362 set in the frame parameter list. */
5363 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5365 if (CONSP (color
) && STRINGP (XCDR (color
)))
5366 LFACE_FOREGROUND (lface
) = XCDR (color
);
5367 else if (FRAME_WINDOW_P (f
))
5369 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5370 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5375 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5377 /* This function is called so early that colors are not yet
5378 set in the frame parameter list. */
5379 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5380 if (CONSP (color
) && STRINGP (XCDR (color
)))
5381 LFACE_BACKGROUND (lface
) = XCDR (color
);
5382 else if (FRAME_WINDOW_P (f
))
5384 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5385 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5390 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5391 LFACE_STIPPLE (lface
) = Qnil
;
5393 /* Realize the face; it must be fully-specified now. */
5394 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5395 check_lface (lface
);
5396 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5397 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5399 #ifdef HAVE_WINDOW_SYSTEM
5400 #ifdef HAVE_X_WINDOWS
5401 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5403 /* This can happen when making a frame on a display that does
5404 not support the default font. */
5408 /* Otherwise, the font specified for the frame was not
5409 acceptable as a font for the default face (perhaps because
5410 auto-scaled fonts are rejected), so we must adjust the frame
5412 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5414 #endif /* HAVE_X_WINDOWS */
5415 #endif /* HAVE_WINDOW_SYSTEM */
5420 /* Realize basic faces other than the default face in face cache C.
5421 SYMBOL is the face name, ID is the face id the realized face must
5422 have. The default face must have been realized already. */
5425 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5427 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5428 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5429 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5430 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5432 /* The default face must exist and be fully specified. */
5433 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5434 check_lface_attrs (attrs
);
5435 xassert (lface_fully_specified_p (attrs
));
5437 /* If SYMBOL isn't know as a face, create it. */
5441 XSETFRAME (frame
, f
);
5442 lface
= Finternal_make_lisp_face (symbol
, frame
);
5445 /* Merge SYMBOL's face with the default face. */
5446 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5447 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5449 /* Realize the face. */
5450 realize_face (c
, attrs
, id
);
5454 /* Realize the fully-specified face with attributes ATTRS in face
5455 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5456 non-negative, it is an ID of face to remove before caching the new
5457 face. Value is a pointer to the newly created realized face. */
5459 static struct face
*
5460 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5464 /* LFACE must be fully specified. */
5465 xassert (cache
!= NULL
);
5466 check_lface_attrs (attrs
);
5468 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5470 /* Remove the former face. */
5471 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5472 uncache_face (cache
, former_face
);
5473 free_realized_face (cache
->f
, former_face
);
5474 SET_FRAME_GARBAGED (cache
->f
);
5477 if (FRAME_WINDOW_P (cache
->f
))
5478 face
= realize_x_face (cache
, attrs
);
5479 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5480 face
= realize_tty_face (cache
, attrs
);
5481 else if (FRAME_INITIAL_P (cache
->f
))
5483 /* Create a dummy face. */
5484 face
= make_realized_face (attrs
);
5489 /* Insert the new face. */
5490 cache_face (cache
, face
, lface_hash (attrs
));
5495 #ifdef HAVE_WINDOW_SYSTEM
5496 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5497 same attributes as BASE_FACE except for the font on frame F.
5498 FONT-OBJECT may be nil, in which case, realized a face of
5501 static struct face
*
5502 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
5504 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5507 face
= (struct face
*) xmalloc (sizeof *face
);
5512 = (! NILP (font_object
)
5513 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5514 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5516 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5517 face
->colors_copied_bitwise_p
= 1;
5518 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5521 cache_face (cache
, face
, face
->hash
);
5525 #endif /* HAVE_WINDOW_SYSTEM */
5528 /* Realize the fully-specified face with attributes ATTRS in face
5529 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5530 the new face doesn't share font with the default face, a fontname
5531 is allocated from the heap and set in `font_name' of the new face,
5532 but it is not yet loaded here. Value is a pointer to the newly
5533 created realized face. */
5535 static struct face
*
5536 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5538 struct face
*face
= NULL
;
5539 #ifdef HAVE_WINDOW_SYSTEM
5540 struct face
*default_face
;
5542 Lisp_Object stipple
, overline
, strike_through
, box
;
5544 xassert (FRAME_WINDOW_P (cache
->f
));
5546 /* Allocate a new realized face. */
5547 face
= make_realized_face (attrs
);
5548 face
->ascii_face
= face
;
5552 /* Determine the font to use. Most of the time, the font will be
5553 the same as the font of the default face, so try that first. */
5554 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5556 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5558 face
->font
= default_face
->font
;
5560 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5564 /* If the face attribute ATTRS specifies a fontset, use it as
5565 the base of a new realized fontset. Otherwise, use the same
5566 base fontset as of the default face. The base determines
5567 registry and encoding of a font. It may also determine
5568 foundry and family. The other fields of font name pattern
5569 are constructed from ATTRS. */
5570 int fontset
= face_fontset (attrs
);
5572 /* If we are realizing the default face, ATTRS should specify a
5573 fontset. In other words, if FONTSET is -1, we are not
5574 realizing the default face, thus the default face should have
5575 already been realized. */
5579 fontset
= default_face
->fontset
;
5583 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5584 attrs
[LFACE_FONT_INDEX
]
5585 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5586 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5588 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5589 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5599 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5600 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5601 face
->overstrike
= 1;
5603 /* Load colors, and set remaining attributes. */
5605 load_face_colors (f
, face
, attrs
);
5608 box
= attrs
[LFACE_BOX_INDEX
];
5611 /* A simple box of line width 1 drawn in color given by
5613 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5615 face
->box
= FACE_SIMPLE_BOX
;
5616 face
->box_line_width
= 1;
5618 else if (INTEGERP (box
))
5620 /* Simple box of specified line width in foreground color of the
5622 xassert (XINT (box
) != 0);
5623 face
->box
= FACE_SIMPLE_BOX
;
5624 face
->box_line_width
= XINT (box
);
5625 face
->box_color
= face
->foreground
;
5626 face
->box_color_defaulted_p
= 1;
5628 else if (CONSP (box
))
5630 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5631 being one of `raised' or `sunken'. */
5632 face
->box
= FACE_SIMPLE_BOX
;
5633 face
->box_color
= face
->foreground
;
5634 face
->box_color_defaulted_p
= 1;
5635 face
->box_line_width
= 1;
5639 Lisp_Object keyword
, value
;
5641 keyword
= XCAR (box
);
5649 if (EQ (keyword
, QCline_width
))
5651 if (INTEGERP (value
) && XINT (value
) != 0)
5652 face
->box_line_width
= XINT (value
);
5654 else if (EQ (keyword
, QCcolor
))
5656 if (STRINGP (value
))
5658 face
->box_color
= load_color (f
, face
, value
,
5660 face
->use_box_color_for_shadows_p
= 1;
5663 else if (EQ (keyword
, QCstyle
))
5665 if (EQ (value
, Qreleased_button
))
5666 face
->box
= FACE_RAISED_BOX
;
5667 else if (EQ (value
, Qpressed_button
))
5668 face
->box
= FACE_SUNKEN_BOX
;
5673 /* Text underline, overline, strike-through. */
5675 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5677 /* Use default color (same as foreground color). */
5678 face
->underline_p
= 1;
5679 face
->underline_defaulted_p
= 1;
5680 face
->underline_color
= 0;
5682 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5684 /* Use specified color. */
5685 face
->underline_p
= 1;
5686 face
->underline_defaulted_p
= 0;
5687 face
->underline_color
5688 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5689 LFACE_UNDERLINE_INDEX
);
5691 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5693 face
->underline_p
= 0;
5694 face
->underline_defaulted_p
= 0;
5695 face
->underline_color
= 0;
5698 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5699 if (STRINGP (overline
))
5701 face
->overline_color
5702 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5703 LFACE_OVERLINE_INDEX
);
5704 face
->overline_p
= 1;
5706 else if (EQ (overline
, Qt
))
5708 face
->overline_color
= face
->foreground
;
5709 face
->overline_color_defaulted_p
= 1;
5710 face
->overline_p
= 1;
5713 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5714 if (STRINGP (strike_through
))
5716 face
->strike_through_color
5717 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5718 LFACE_STRIKE_THROUGH_INDEX
);
5719 face
->strike_through_p
= 1;
5721 else if (EQ (strike_through
, Qt
))
5723 face
->strike_through_color
= face
->foreground
;
5724 face
->strike_through_color_defaulted_p
= 1;
5725 face
->strike_through_p
= 1;
5728 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5729 if (!NILP (stipple
))
5730 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5731 #endif /* HAVE_WINDOW_SYSTEM */
5737 /* Map a specified color of face FACE on frame F to a tty color index.
5738 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5739 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5740 default foreground/background colors. */
5743 map_tty_color (struct frame
*f
, struct face
*face
, enum lface_attribute_index idx
, int *defaulted
)
5745 Lisp_Object frame
, color
, def
;
5746 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5747 unsigned long default_pixel
=
5748 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5749 unsigned long pixel
= default_pixel
;
5751 unsigned long default_other_pixel
=
5752 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5755 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5757 XSETFRAME (frame
, f
);
5758 color
= face
->lface
[idx
];
5762 && CONSP (Vtty_defined_color_alist
)
5763 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5766 /* Associations in tty-defined-color-alist are of the form
5767 (NAME INDEX R G B). We need the INDEX part. */
5768 pixel
= XINT (XCAR (XCDR (def
)));
5771 if (pixel
== default_pixel
&& STRINGP (color
))
5773 pixel
= load_color (f
, face
, color
, idx
);
5776 /* If the foreground of the default face is the default color,
5777 use the foreground color defined by the frame. */
5778 if (FRAME_MSDOS_P (f
))
5780 if (pixel
== default_pixel
5781 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5784 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5786 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5787 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5790 else if (pixel
== default_other_pixel
)
5793 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5795 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5796 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5804 face
->foreground
= pixel
;
5806 face
->background
= pixel
;
5810 /* Realize the fully-specified face with attributes ATTRS in face
5811 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5812 Value is a pointer to the newly created realized face. */
5814 static struct face
*
5815 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5819 int face_colors_defaulted
= 0;
5820 struct frame
*f
= cache
->f
;
5822 /* Frame must be a termcap frame. */
5823 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5825 /* Allocate a new realized face. */
5826 face
= make_realized_face (attrs
);
5828 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5831 /* Map face attributes to TTY appearances. We map slant to
5832 dimmed text because we want italic text to appear differently
5833 and because dimmed text is probably used infrequently. */
5834 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5835 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5837 face
->tty_bold_p
= 1;
5838 if (weight
< 100 || slant
!= 100)
5839 face
->tty_dim_p
= 1;
5840 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5841 face
->tty_underline_p
= 1;
5842 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5843 face
->tty_reverse_p
= 1;
5845 /* Map color names to color indices. */
5846 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5847 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5849 /* Swap colors if face is inverse-video. If the colors are taken
5850 from the frame colors, they are already inverted, since the
5851 frame-creation function calls x-handle-reverse-video. */
5852 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5854 unsigned long tem
= face
->foreground
;
5855 face
->foreground
= face
->background
;
5856 face
->background
= tem
;
5859 if (tty_suppress_bold_inverse_default_colors_p
5861 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5862 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5863 face
->tty_bold_p
= 0;
5869 DEFUN ("tty-suppress-bold-inverse-default-colors",
5870 Ftty_suppress_bold_inverse_default_colors
,
5871 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5872 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5873 SUPPRESS non-nil means suppress it.
5874 This affects bold faces on TTYs whose foreground is the default background
5875 color of the display and whose background is the default foreground color.
5876 For such faces, the bold face attribute is ignored if this variable
5878 (Lisp_Object suppress
)
5880 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5881 ++face_change_count
;
5887 /***********************************************************************
5889 ***********************************************************************/
5891 /* Return the ID of the face to use to display character CH with face
5892 property PROP on frame F in current_buffer. */
5895 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5899 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5904 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5905 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5909 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5910 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5911 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5912 merge_face_ref (f
, prop
, attrs
, 1, 0);
5913 face_id
= lookup_face (f
, attrs
);
5919 /* Return the face ID associated with buffer position POS for
5920 displaying ASCII characters. Return in *ENDPTR the position at
5921 which a different face is needed, as far as text properties and
5922 overlays are concerned. W is a window displaying current_buffer.
5924 REGION_BEG, REGION_END delimit the region, so it can be
5927 LIMIT is a position not to scan beyond. That is to limit the time
5928 this function can take.
5930 If MOUSE is non-zero, use the character's mouse-face, not its face.
5932 BASE_FACE_ID, if non-negative, specifies a base face id to use
5933 instead of DEFAULT_FACE_ID.
5935 The face returned is suitable for displaying ASCII characters. */
5938 face_at_buffer_position (struct window
*w
, EMACS_INT pos
,
5939 EMACS_INT region_beg
, EMACS_INT region_end
,
5940 EMACS_INT
*endptr
, EMACS_INT limit
,
5941 int mouse
, int base_face_id
)
5943 struct frame
*f
= XFRAME (w
->frame
);
5944 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5945 Lisp_Object prop
, position
;
5946 ptrdiff_t i
, noverlays
;
5947 Lisp_Object
*overlay_vec
;
5950 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5951 Lisp_Object limit1
, end
;
5952 struct face
*default_face
;
5954 /* W must display the current buffer. We could write this function
5955 to use the frame and buffer of W, but right now it doesn't. */
5956 /* xassert (XBUFFER (w->buffer) == current_buffer); */
5958 XSETFRAME (frame
, f
);
5959 XSETFASTINT (position
, pos
);
5962 if (pos
< region_beg
&& region_beg
< endpos
)
5963 endpos
= region_beg
;
5965 /* Get the `face' or `mouse_face' text property at POS, and
5966 determine the next position at which the property changes. */
5967 prop
= Fget_text_property (position
, propname
, w
->buffer
);
5968 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5969 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
5971 endpos
= XINT (end
);
5973 /* Look at properties from overlays. */
5975 EMACS_INT next_overlay
;
5977 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5978 if (next_overlay
< endpos
)
5979 endpos
= next_overlay
;
5984 default_face
= FACE_FROM_ID (f
, base_face_id
>= 0 ? base_face_id
5985 : NILP (Vface_remapping_alist
) ? DEFAULT_FACE_ID
5986 : lookup_basic_face (f
, DEFAULT_FACE_ID
));
5988 /* Optimize common cases where we can use the default face. */
5991 && !(pos
>= region_beg
&& pos
< region_end
))
5992 return default_face
->id
;
5994 /* Begin with attributes from the default face. */
5995 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5997 /* Merge in attributes specified via text properties. */
5999 merge_face_ref (f
, prop
, attrs
, 1, 0);
6001 /* Now merge the overlay data. */
6002 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6003 for (i
= 0; i
< noverlays
; i
++)
6008 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6010 merge_face_ref (f
, prop
, attrs
, 1, 0);
6012 oend
= OVERLAY_END (overlay_vec
[i
]);
6013 oendpos
= OVERLAY_POSITION (oend
);
6014 if (oendpos
< endpos
)
6018 /* If in the region, merge in the region face. */
6019 if (pos
>= region_beg
&& pos
< region_end
)
6021 merge_named_face (f
, Qregion
, attrs
, 0);
6023 if (region_end
< endpos
)
6024 endpos
= region_end
;
6029 /* Look up a realized face with the given face attributes,
6030 or realize a new one for ASCII characters. */
6031 return lookup_face (f
, attrs
);
6034 /* Return the face ID at buffer position POS for displaying ASCII
6035 characters associated with overlay strings for overlay OVERLAY.
6037 Like face_at_buffer_position except for OVERLAY. Currently it
6038 simply disregards the `face' properties of all overlays. */
6041 face_for_overlay_string (struct window
*w
, EMACS_INT pos
,
6042 EMACS_INT region_beg
, EMACS_INT region_end
,
6043 EMACS_INT
*endptr
, EMACS_INT limit
,
6044 int mouse
, Lisp_Object overlay
)
6046 struct frame
*f
= XFRAME (w
->frame
);
6047 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6048 Lisp_Object prop
, position
;
6051 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6052 Lisp_Object limit1
, end
;
6053 struct face
*default_face
;
6055 /* W must display the current buffer. We could write this function
6056 to use the frame and buffer of W, but right now it doesn't. */
6057 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6059 XSETFRAME (frame
, f
);
6060 XSETFASTINT (position
, pos
);
6063 if (pos
< region_beg
&& region_beg
< endpos
)
6064 endpos
= region_beg
;
6066 /* Get the `face' or `mouse_face' text property at POS, and
6067 determine the next position at which the property changes. */
6068 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6069 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6070 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6072 endpos
= XINT (end
);
6076 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6078 /* Optimize common cases where we can use the default face. */
6080 && !(pos
>= region_beg
&& pos
< region_end
))
6081 return DEFAULT_FACE_ID
;
6083 /* Begin with attributes from the default face. */
6084 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6086 /* Merge in attributes specified via text properties. */
6088 merge_face_ref (f
, prop
, attrs
, 1, 0);
6090 /* If in the region, merge in the region face. */
6091 if (pos
>= region_beg
&& pos
< region_end
)
6093 merge_named_face (f
, Qregion
, attrs
, 0);
6095 if (region_end
< endpos
)
6096 endpos
= region_end
;
6101 /* Look up a realized face with the given face attributes,
6102 or realize a new one for ASCII characters. */
6103 return lookup_face (f
, attrs
);
6107 /* Compute the face at character position POS in Lisp string STRING on
6108 window W, for ASCII characters.
6110 If STRING is an overlay string, it comes from position BUFPOS in
6111 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6112 not an overlay string. W must display the current buffer.
6113 REGION_BEG and REGION_END give the start and end positions of the
6114 region; both are -1 if no region is visible.
6116 BASE_FACE_ID is the id of a face to merge with. For strings coming
6117 from overlays or the `display' property it is the face at BUFPOS.
6119 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6121 Set *ENDPTR to the next position where to check for faces in
6122 STRING; -1 if the face is constant from POS to the end of the
6125 Value is the id of the face to use. The face returned is suitable
6126 for displaying ASCII characters. */
6129 face_at_string_position (struct window
*w
, Lisp_Object string
,
6130 EMACS_INT pos
, EMACS_INT bufpos
,
6131 EMACS_INT region_beg
, EMACS_INT region_end
,
6132 EMACS_INT
*endptr
, enum face_id base_face_id
,
6135 Lisp_Object prop
, position
, end
, limit
;
6136 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6137 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6138 struct face
*base_face
;
6139 int multibyte_p
= STRING_MULTIBYTE (string
);
6140 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6142 /* Get the value of the face property at the current position within
6143 STRING. Value is nil if there is no face property. */
6144 XSETFASTINT (position
, pos
);
6145 prop
= Fget_text_property (position
, prop_name
, string
);
6147 /* Get the next position at which to check for faces. Value of end
6148 is nil if face is constant all the way to the end of the string.
6149 Otherwise it is a string position where to check faces next.
6150 Limit is the maximum position up to which to check for property
6151 changes in Fnext_single_property_change. Strings are usually
6152 short, so set the limit to the end of the string. */
6153 XSETFASTINT (limit
, SCHARS (string
));
6154 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6156 *endptr
= XFASTINT (end
);
6160 base_face
= FACE_FROM_ID (f
, base_face_id
);
6161 xassert (base_face
);
6163 /* Optimize the default case that there is no face property and we
6164 are not in the region. */
6166 && (base_face_id
!= DEFAULT_FACE_ID
6167 /* BUFPOS <= 0 means STRING is not an overlay string, so
6168 that the region doesn't have to be taken into account. */
6170 || bufpos
< region_beg
6171 || bufpos
>= region_end
)
6173 /* We can't realize faces for different charsets differently
6174 if we don't have fonts, so we can stop here if not working
6175 on a window-system frame. */
6176 || !FRAME_WINDOW_P (f
)
6177 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6178 return base_face
->id
;
6180 /* Begin with attributes from the base face. */
6181 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6183 /* Merge in attributes specified via text properties. */
6185 merge_face_ref (f
, prop
, attrs
, 1, 0);
6187 /* If in the region, merge in the region face. */
6189 && bufpos
>= region_beg
6190 && bufpos
< region_end
)
6191 merge_named_face (f
, Qregion
, attrs
, 0);
6193 /* Look up a realized face with the given face attributes,
6194 or realize a new one for ASCII characters. */
6195 return lookup_face (f
, attrs
);
6199 /* Merge a face into a realized face.
6201 F is frame where faces are (to be) realized.
6203 FACE_NAME is named face to merge.
6205 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6207 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6209 BASE_FACE_ID is realized face to merge into.
6215 merge_faces (struct frame
*f
, Lisp_Object face_name
, EMACS_INT face_id
,
6218 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6219 struct face
*base_face
;
6221 base_face
= FACE_FROM_ID (f
, base_face_id
);
6223 return base_face_id
;
6225 if (EQ (face_name
, Qt
))
6227 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6228 return base_face_id
;
6229 face_name
= lface_id_to_name
[face_id
];
6230 /* When called during make-frame, lookup_derived_face may fail
6231 if the faces are uninitialized. Don't signal an error. */
6232 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6233 return (face_id
>= 0 ? face_id
: base_face_id
);
6236 /* Begin with attributes from the base face. */
6237 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6239 if (!NILP (face_name
))
6241 if (!merge_named_face (f
, face_name
, attrs
, 0))
6242 return base_face_id
;
6248 return base_face_id
;
6249 face
= FACE_FROM_ID (f
, face_id
);
6251 return base_face_id
;
6252 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6255 /* Look up a realized face with the given face attributes,
6256 or realize a new one for ASCII characters. */
6257 return lookup_face (f
, attrs
);
6262 #ifndef HAVE_X_WINDOWS
6263 DEFUN ("x-load-color-file", Fx_load_color_file
,
6264 Sx_load_color_file
, 1, 1, 0,
6265 doc
: /* Create an alist of color entries from an external file.
6267 The file should define one named RGB color per line like so:
6269 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6270 (Lisp_Object filename
)
6273 Lisp_Object cmap
= Qnil
;
6274 Lisp_Object abspath
;
6276 CHECK_STRING (filename
);
6277 abspath
= Fexpand_file_name (filename
, Qnil
);
6279 fp
= fopen (SDATA (abspath
), "rt");
6283 int red
, green
, blue
;
6288 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6289 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6291 char *name
= buf
+ num
;
6292 num
= strlen (name
) - 1;
6293 if (num
>= 0 && name
[num
] == '\n')
6295 cmap
= Fcons (Fcons (build_string (name
),
6297 make_number (RGB (red
, green
, blue
))),
6299 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6314 /***********************************************************************
6316 ***********************************************************************/
6320 /* Print the contents of the realized face FACE to stderr. */
6323 dump_realized_face (struct face
*face
)
6325 fprintf (stderr
, "ID: %d\n", face
->id
);
6326 #ifdef HAVE_X_WINDOWS
6327 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6329 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6331 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6332 fprintf (stderr
, "background: 0x%lx (%s)\n",
6334 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6336 fprintf (stderr
, "font_name: %s (%s)\n",
6337 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6338 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6339 #ifdef HAVE_X_WINDOWS
6340 fprintf (stderr
, "font = %p\n", face
->font
);
6342 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6343 fprintf (stderr
, "underline: %d (%s)\n",
6345 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6346 fprintf (stderr
, "hash: %d\n", face
->hash
);
6350 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6357 fprintf (stderr
, "font selection order: ");
6358 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6359 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6360 fprintf (stderr
, "\n");
6362 fprintf (stderr
, "alternative fonts: ");
6363 debug_print (Vface_alternative_font_family_alist
);
6364 fprintf (stderr
, "\n");
6366 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6367 Fdump_face (make_number (i
));
6373 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6375 error ("Not a valid face");
6376 dump_realized_face (face
);
6383 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6384 0, 0, 0, doc
: /* */)
6387 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6388 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6389 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6393 #endif /* GLYPH_DEBUG != 0 */
6397 /***********************************************************************
6399 ***********************************************************************/
6402 syms_of_xfaces (void)
6404 DEFSYM (Qface
, "face");
6405 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6406 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6407 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6409 /* Lisp face attribute keywords. */
6410 DEFSYM (QCfamily
, ":family");
6411 DEFSYM (QCheight
, ":height");
6412 DEFSYM (QCweight
, ":weight");
6413 DEFSYM (QCslant
, ":slant");
6414 DEFSYM (QCunderline
, ":underline");
6415 DEFSYM (QCinverse_video
, ":inverse-video");
6416 DEFSYM (QCreverse_video
, ":reverse-video");
6417 DEFSYM (QCforeground
, ":foreground");
6418 DEFSYM (QCbackground
, ":background");
6419 DEFSYM (QCstipple
, ":stipple");
6420 DEFSYM (QCwidth
, ":width");
6421 DEFSYM (QCfont
, ":font");
6422 DEFSYM (QCfontset
, ":fontset");
6423 DEFSYM (QCbold
, ":bold");
6424 DEFSYM (QCitalic
, ":italic");
6425 DEFSYM (QCoverline
, ":overline");
6426 DEFSYM (QCstrike_through
, ":strike-through");
6427 DEFSYM (QCbox
, ":box");
6428 DEFSYM (QCinherit
, ":inherit");
6430 /* Symbols used for Lisp face attribute values. */
6431 DEFSYM (QCcolor
, ":color");
6432 DEFSYM (QCline_width
, ":line-width");
6433 DEFSYM (QCstyle
, ":style");
6434 DEFSYM (Qreleased_button
, "released-button");
6435 DEFSYM (Qpressed_button
, "pressed-button");
6436 DEFSYM (Qnormal
, "normal");
6437 DEFSYM (Qultra_light
, "ultra-light");
6438 DEFSYM (Qextra_light
, "extra-light");
6439 DEFSYM (Qlight
, "light");
6440 DEFSYM (Qsemi_light
, "semi-light");
6441 DEFSYM (Qsemi_bold
, "semi-bold");
6442 DEFSYM (Qbold
, "bold");
6443 DEFSYM (Qextra_bold
, "extra-bold");
6444 DEFSYM (Qultra_bold
, "ultra-bold");
6445 DEFSYM (Qoblique
, "oblique");
6446 DEFSYM (Qitalic
, "italic");
6447 DEFSYM (Qreverse_oblique
, "reverse-oblique");
6448 DEFSYM (Qreverse_italic
, "reverse-italic");
6449 DEFSYM (Qultra_condensed
, "ultra-condensed");
6450 DEFSYM (Qextra_condensed
, "extra-condensed");
6451 DEFSYM (Qcondensed
, "condensed");
6452 DEFSYM (Qsemi_condensed
, "semi-condensed");
6453 DEFSYM (Qsemi_expanded
, "semi-expanded");
6454 DEFSYM (Qexpanded
, "expanded");
6455 DEFSYM (Qextra_expanded
, "extra-expanded");
6456 DEFSYM (Qultra_expanded
, "ultra-expanded");
6457 DEFSYM (Qbackground_color
, "background-color");
6458 DEFSYM (Qforeground_color
, "foreground-color");
6459 DEFSYM (Qunspecified
, "unspecified");
6460 DEFSYM (Qignore_defface
, ":ignore-defface");
6462 DEFSYM (Qface_alias
, "face-alias");
6463 DEFSYM (Qdefault
, "default");
6464 DEFSYM (Qtool_bar
, "tool-bar");
6465 DEFSYM (Qregion
, "region");
6466 DEFSYM (Qfringe
, "fringe");
6467 DEFSYM (Qheader_line
, "header-line");
6468 DEFSYM (Qscroll_bar
, "scroll-bar");
6469 DEFSYM (Qmenu
, "menu");
6470 DEFSYM (Qcursor
, "cursor");
6471 DEFSYM (Qborder
, "border");
6472 DEFSYM (Qmouse
, "mouse");
6473 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6474 DEFSYM (Qvertical_border
, "vertical-border");
6475 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6476 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6477 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6478 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6479 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6481 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6482 staticpro (&Vparam_value_alist
);
6483 Vface_alternative_font_family_alist
= Qnil
;
6484 staticpro (&Vface_alternative_font_family_alist
);
6485 Vface_alternative_font_registry_alist
= Qnil
;
6486 staticpro (&Vface_alternative_font_registry_alist
);
6488 defsubr (&Sinternal_make_lisp_face
);
6489 defsubr (&Sinternal_lisp_face_p
);
6490 defsubr (&Sinternal_set_lisp_face_attribute
);
6491 #ifdef HAVE_WINDOW_SYSTEM
6492 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6494 defsubr (&Scolor_gray_p
);
6495 defsubr (&Scolor_supported_p
);
6496 #ifndef HAVE_X_WINDOWS
6497 defsubr (&Sx_load_color_file
);
6499 defsubr (&Sface_attribute_relative_p
);
6500 defsubr (&Smerge_face_attribute
);
6501 defsubr (&Sinternal_get_lisp_face_attribute
);
6502 defsubr (&Sinternal_lisp_face_attribute_values
);
6503 defsubr (&Sinternal_lisp_face_equal_p
);
6504 defsubr (&Sinternal_lisp_face_empty_p
);
6505 defsubr (&Sinternal_copy_lisp_face
);
6506 defsubr (&Sinternal_merge_in_global_face
);
6507 defsubr (&Sface_font
);
6508 defsubr (&Sframe_face_alist
);
6509 defsubr (&Sdisplay_supports_face_attributes_p
);
6510 defsubr (&Scolor_distance
);
6511 defsubr (&Sinternal_set_font_selection_order
);
6512 defsubr (&Sinternal_set_alternative_font_family_alist
);
6513 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6514 defsubr (&Sface_attributes_as_vector
);
6516 defsubr (&Sdump_face
);
6517 defsubr (&Sshow_face_resources
);
6518 #endif /* GLYPH_DEBUG */
6519 defsubr (&Sclear_face_cache
);
6520 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6522 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6523 defsubr (&Sdump_colors
);
6526 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6527 doc
: /* *Limit for font matching.
6528 If an integer > 0, font matching functions won't load more than
6529 that number of fonts when searching for a matching font. */);
6530 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6532 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6533 doc
: /* List of global face definitions (for internal use only.) */);
6534 Vface_new_frame_defaults
= Qnil
;
6536 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6537 doc
: /* *Default stipple pattern used on monochrome displays.
6538 This stipple pattern is used on monochrome displays
6539 instead of shades of gray for a face background color.
6540 See `set-face-stipple' for possible values for this variable. */);
6541 Vface_default_stipple
= make_pure_c_string ("gray3");
6543 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6544 doc
: /* An alist of defined terminal colors and their RGB values.
6545 See the docstring of `tty-color-alist' for the details. */);
6546 Vtty_defined_color_alist
= Qnil
;
6548 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6549 doc
: /* Allowed scalable fonts.
6550 A value of nil means don't allow any scalable fonts.
6551 A value of t means allow any scalable font.
6552 Otherwise, value must be a list of regular expressions. A font may be
6553 scaled if its name matches a regular expression in the list.
6554 Note that if value is nil, a scalable font might still be used, if no
6555 other font of the appropriate family and registry is available. */);
6556 Vscalable_fonts_allowed
= Qnil
;
6558 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6559 doc
: /* List of ignored fonts.
6560 Each element is a regular expression that matches names of fonts to
6562 Vface_ignored_fonts
= Qnil
;
6564 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6565 doc
: /* Alist of face remappings.
6566 Each element is of the form:
6568 (FACE REPLACEMENT...),
6570 which causes display of the face FACE to use REPLACEMENT... instead.
6571 REPLACEMENT... is interpreted the same way as the value of a `face'
6572 text property: it may be (1) A face name, (2) A list of face names,
6573 (3) A property-list of face attribute/value pairs, or (4) A list of
6574 face names or lists containing face attribute/value pairs.
6576 Multiple entries in REPLACEMENT... are merged together to form the final
6577 result, with faces or attributes earlier in the list taking precedence
6578 over those that are later.
6580 Face-name remapping cycles are suppressed; recursive references use the
6581 underlying face instead of the remapped face. So a remapping of the form:
6583 (FACE EXTRA-FACE... FACE)
6587 (FACE (FACE-ATTR VAL ...) FACE)
6589 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6590 existing definition of FACE. Note that for the default face, this isn't
6591 necessary, as every face inherits from the default face.
6593 Making this variable buffer-local is a good way to allow buffer-specific
6594 face definitions. For instance, the mode my-mode could define a face
6595 `my-mode-default', and then in the mode setup function, do:
6597 (set (make-local-variable 'face-remapping-alist)
6598 '((default my-mode-default)))).
6600 Because Emacs normally only redraws screen areas when the underlying
6601 buffer contents change, you may need to call `redraw-display' after
6602 changing this variable for it to take effect. */);
6603 Vface_remapping_alist
= Qnil
;
6605 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6606 doc
: /* Alist of fonts vs the rescaling factors.
6607 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6608 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6609 RESCALE-RATIO is a floating point number to specify how much larger
6610 \(or smaller) font we should use. For instance, if a face requests
6611 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6612 Vface_font_rescale_alist
= Qnil
;
6614 #ifdef HAVE_WINDOW_SYSTEM
6615 defsubr (&Sbitmap_spec_p
);
6616 defsubr (&Sx_list_fonts
);
6617 defsubr (&Sinternal_face_x_get_resource
);
6618 defsubr (&Sx_family_fonts
);