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 #else /* not XOS_NEEDS_TIME_H */
278 #endif /* not XOS_NEEDS_TIME_H */
280 #endif /* HAVE_X_WINDOWS */
284 /* Number of pt per inch (from the TeXbook). */
286 #define PT_PER_INCH 72.27
288 /* Non-zero if face attribute ATTR is unspecified. */
290 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
292 /* Non-zero if face attribute ATTR is `ignore-defface'. */
294 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
296 /* Value is the number of elements of VECTOR. */
298 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
300 /* Size of hash table of realized faces in face caches (should be a
303 #define FACE_CACHE_BUCKETS_SIZE 1001
305 /* Keyword symbols used for face attribute names. */
307 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
308 static Lisp_Object QCunderline
;
309 static Lisp_Object QCinverse_video
, QCstipple
;
310 Lisp_Object QCforeground
, QCbackground
;
312 static Lisp_Object QCfont
, QCbold
, QCitalic
;
313 static Lisp_Object QCreverse_video
;
314 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
315 static Lisp_Object QCfontset
;
317 /* Symbols used for attribute values. */
320 static Lisp_Object Qbold
, Qultra_light
, Qextra_light
, Qlight
;
321 static Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
322 static Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
323 static Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
324 static Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
325 static Lisp_Object Qultra_expanded
;
326 static Lisp_Object Qreleased_button
, Qpressed_button
;
327 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
328 static Lisp_Object Qunspecified
;
329 static Lisp_Object Qignore_defface
;
331 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
333 /* The name of the function to call when the background of the frame
334 has changed, frame_set_background_mode. */
336 Lisp_Object Qframe_set_background_mode
;
338 /* Names of basic faces. */
340 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
341 static Lisp_Object Qregion
;
342 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
343 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
344 Lisp_Object Qmode_line_inactive
;
345 static Lisp_Object Qvertical_border
;
347 /* The symbol `face-alias'. A symbols having that property is an
348 alias for another face. Value of the property is the name of
351 static Lisp_Object Qface_alias
;
353 /* Alist of alternative font families. Each element is of the form
354 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
355 try FAMILY1, then FAMILY2, ... */
357 Lisp_Object Vface_alternative_font_family_alist
;
359 /* Alist of alternative font registries. Each element is of the form
360 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
361 loaded, try REGISTRY1, then REGISTRY2, ... */
363 Lisp_Object Vface_alternative_font_registry_alist
;
365 /* Allowed scalable fonts. A value of nil means don't allow any
366 scalable fonts. A value of t means allow the use of any scalable
367 font. Otherwise, value must be a list of regular expressions. A
368 font may be scaled if its name matches a regular expression in the
371 static Lisp_Object Qscalable_fonts_allowed
;
373 #define DEFAULT_FONT_LIST_LIMIT 100
375 /* The symbols `foreground-color' and `background-color' which can be
376 used as part of a `face' property. This is for compatibility with
379 Lisp_Object Qforeground_color
, Qbackground_color
;
381 /* The symbols `face' and `mouse-face' used as text properties. */
385 /* Property for basic faces which other faces cannot inherit. */
387 static Lisp_Object Qface_no_inherit
;
389 /* Error symbol for wrong_type_argument in load_pixmap. */
391 static Lisp_Object Qbitmap_spec_p
;
393 /* The next ID to assign to Lisp faces. */
395 static int next_lface_id
;
397 /* A vector mapping Lisp face Id's to face names. */
399 static Lisp_Object
*lface_id_to_name
;
400 static int lface_id_to_name_size
;
402 /* TTY color-related functions (defined in tty-colors.el). */
404 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
406 /* The name of the function used to compute colors on TTYs. */
408 static Lisp_Object Qtty_color_alist
;
410 /* Counter for calls to clear_face_cache. If this counter reaches
411 CLEAR_FONT_TABLE_COUNT, and a frame has more than
412 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
414 static int clear_font_table_count
;
415 #define CLEAR_FONT_TABLE_COUNT 100
416 #define CLEAR_FONT_TABLE_NFONTS 10
418 /* Non-zero means face attributes have been changed since the last
419 redisplay. Used in redisplay_internal. */
421 int face_change_count
;
423 /* Non-zero means don't display bold text if a face's foreground
424 and background colors are the inverse of the default colors of the
425 display. This is a kluge to suppress `bold black' foreground text
426 which is hard to read on an LCD monitor. */
428 static int tty_suppress_bold_inverse_default_colors_p
;
430 /* A list of the form `((x . y))' used to avoid consing in
431 Finternal_set_lisp_face_attribute. */
433 static Lisp_Object Vparam_value_alist
;
435 /* The total number of colors currently allocated. */
438 static int ncolors_allocated
;
439 static int npixmaps_allocated
;
443 /* Non-zero means the definition of the `menu' face for new frames has
446 static int menu_face_changed_default
;
449 /* Function prototypes. */
452 struct named_merge_point
;
454 static void map_tty_color (struct frame
*, struct face
*,
455 enum lface_attribute_index
, int *);
456 static Lisp_Object
resolve_face_name (Lisp_Object
, int);
457 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
458 static int get_lface_attributes (struct frame
*, Lisp_Object
, Lisp_Object
*,
459 int, struct named_merge_point
*);
460 static int load_pixmap (struct frame
*, Lisp_Object
, unsigned *, unsigned *);
461 static struct frame
*frame_or_selected_frame (Lisp_Object
, int);
462 static void load_face_colors (struct frame
*, struct face
*, Lisp_Object
*);
463 static void free_face_colors (struct frame
*, struct face
*);
464 static int face_color_gray_p (struct frame
*, const char *);
465 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
467 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
469 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
470 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
471 static int realize_basic_faces (struct frame
*);
472 static int realize_default_face (struct frame
*);
473 static void realize_named_face (struct frame
*, Lisp_Object
, int);
474 static int lface_fully_specified_p (Lisp_Object
*);
475 static int lface_equal_p (Lisp_Object
*, Lisp_Object
*);
476 static unsigned hash_string_case_insensitive (Lisp_Object
);
477 static unsigned lface_hash (Lisp_Object
*);
478 static int lface_same_font_attributes_p (Lisp_Object
*, Lisp_Object
*);
479 static struct face_cache
*make_face_cache (struct frame
*);
480 static void clear_face_gcs (struct face_cache
*);
481 static void free_face_cache (struct face_cache
*);
482 static int face_fontset (Lisp_Object
*);
483 static void merge_face_vectors (struct frame
*, Lisp_Object
*, Lisp_Object
*,
484 struct named_merge_point
*);
485 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
486 int, struct named_merge_point
*);
487 static int set_lface_from_font (struct frame
*, Lisp_Object
, Lisp_Object
,
489 static Lisp_Object
lface_from_face_name (struct frame
*, Lisp_Object
, int);
490 static struct face
*make_realized_face (Lisp_Object
*);
491 static void cache_face (struct face_cache
*, struct face
*, unsigned);
492 static void uncache_face (struct face_cache
*, struct face
*);
494 #ifdef HAVE_WINDOW_SYSTEM
496 static GC
x_create_gc (struct frame
*, unsigned long, XGCValues
*);
497 static void x_free_gc (struct frame
*, GC
);
500 static void x_update_menu_appearance (struct frame
*);
502 extern void free_frame_menubar (struct frame
*);
503 #endif /* USE_X_TOOLKIT */
505 #endif /* HAVE_WINDOW_SYSTEM */
508 /***********************************************************************
510 ***********************************************************************/
512 #ifdef HAVE_X_WINDOWS
514 #ifdef DEBUG_X_COLORS
516 /* The following is a poor mans infrastructure for debugging X color
517 allocation problems on displays with PseudoColor-8. Some X servers
518 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
519 color reference counts completely so that they don't signal an
520 error when a color is freed whose reference count is already 0.
521 Other X servers do. To help me debug this, the following code
522 implements a simple reference counting schema of its own, for a
523 single display/screen. --gerd. */
525 /* Reference counts for pixel colors. */
527 int color_count
[256];
529 /* Register color PIXEL as allocated. */
532 register_color (pixel
)
535 xassert (pixel
< 256);
536 ++color_count
[pixel
];
540 /* Register color PIXEL as deallocated. */
543 unregister_color (pixel
)
546 xassert (pixel
< 256);
547 if (color_count
[pixel
] > 0)
548 --color_count
[pixel
];
554 /* Register N colors from PIXELS as deallocated. */
557 unregister_colors (pixels
, n
)
558 unsigned long *pixels
;
562 for (i
= 0; i
< n
; ++i
)
563 unregister_color (pixels
[i
]);
567 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
568 doc
: /* Dump currently allocated colors to stderr. */)
573 fputc ('\n', stderr
);
575 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
578 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
581 fputc ('\n', stderr
);
583 fputc ('\t', stderr
);
587 fputc ('\n', stderr
);
591 #endif /* DEBUG_X_COLORS */
594 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
595 color values. Interrupt input must be blocked when this function
599 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
601 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
603 /* If display has an immutable color map, freeing colors is not
604 necessary and some servers don't allow it. So don't do it. */
605 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
607 #ifdef DEBUG_X_COLORS
608 unregister_colors (pixels
, npixels
);
610 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
618 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
619 color values. Interrupt input must be blocked when this function
623 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
, long unsigned int *pixels
, int npixels
)
625 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
626 int class = dpyinfo
->visual
->class;
628 /* If display has an immutable color map, freeing colors is not
629 necessary and some servers don't allow it. So don't do it. */
630 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
632 #ifdef DEBUG_X_COLORS
633 unregister_colors (pixels
, npixels
);
635 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
638 #endif /* USE_X_TOOLKIT */
640 /* Create and return a GC for use on frame F. GC values and mask
641 are given by XGCV and MASK. */
644 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
648 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
655 /* Free GC which was used on frame F. */
658 x_free_gc (struct frame
*f
, GC gc
)
660 eassert (interrupt_input_blocked
);
661 IF_DEBUG (xassert (--ngcs
>= 0));
662 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
665 #endif /* HAVE_X_WINDOWS */
668 /* W32 emulation of GCs */
671 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
675 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
682 /* Free GC which was used on frame F. */
685 x_free_gc (struct frame
*f
, GC gc
)
687 IF_DEBUG (xassert (--ngcs
>= 0));
691 #endif /* WINDOWSNT */
694 /* NS emulation of GCs */
697 x_create_gc (struct frame
*f
,
701 GC gc
= xmalloc (sizeof (*gc
));
703 memcpy (gc
, xgcv
, sizeof (XGCValues
));
708 x_free_gc (struct frame
*f
, GC gc
)
714 /* Like strcasecmp/stricmp. Used to compare parts of font names which
718 xstrcasecmp (const char *s1
, const char *s2
)
722 unsigned char b1
= *s1
;
723 unsigned char b2
= *s2
;
724 unsigned char c1
= tolower (b1
);
725 unsigned char c2
= tolower (b2
);
727 return c1
< c2
? -1 : 1;
732 return *s2
== 0 ? 0 : -1;
737 /* If FRAME is nil, return a pointer to the selected frame.
738 Otherwise, check that FRAME is a live frame, and return a pointer
739 to it. NPARAM is the parameter number of FRAME, for
740 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
741 Lisp function definitions. */
743 static INLINE
struct frame
*
744 frame_or_selected_frame (Lisp_Object frame
, int nparam
)
747 frame
= selected_frame
;
749 CHECK_LIVE_FRAME (frame
);
750 return XFRAME (frame
);
754 /***********************************************************************
756 ***********************************************************************/
758 /* Initialize face cache and basic faces for frame F. */
761 init_frame_faces (struct frame
*f
)
763 /* Make a face cache, if F doesn't have one. */
764 if (FRAME_FACE_CACHE (f
) == NULL
)
765 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
767 #ifdef HAVE_WINDOW_SYSTEM
768 /* Make the image cache. */
769 if (FRAME_WINDOW_P (f
))
771 /* We initialize the image cache when creating the first frame
772 on a terminal, and not during terminal creation. This way,
773 `x-open-connection' on a tty won't create an image cache. */
774 if (FRAME_IMAGE_CACHE (f
) == NULL
)
775 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
776 ++FRAME_IMAGE_CACHE (f
)->refcount
;
778 #endif /* HAVE_WINDOW_SYSTEM */
780 /* Realize basic faces. Must have enough information in frame
781 parameters to realize basic faces at this point. */
782 #ifdef HAVE_X_WINDOWS
783 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
786 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
789 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
791 if (!realize_basic_faces (f
))
796 /* Free face cache of frame F. Called from delete_frame. */
799 free_frame_faces (struct frame
*f
)
801 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
805 free_face_cache (face_cache
);
806 FRAME_FACE_CACHE (f
) = NULL
;
809 #ifdef HAVE_WINDOW_SYSTEM
810 if (FRAME_WINDOW_P (f
))
812 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
815 --image_cache
->refcount
;
816 if (image_cache
->refcount
== 0)
817 free_image_cache (f
);
820 #endif /* HAVE_WINDOW_SYSTEM */
824 /* Clear face caches, and recompute basic faces for frame F. Call
825 this after changing frame parameters on which those faces depend,
826 or when realized faces have been freed due to changing attributes
830 recompute_basic_faces (struct frame
*f
)
832 if (FRAME_FACE_CACHE (f
))
834 clear_face_cache (0);
835 if (!realize_basic_faces (f
))
841 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
842 try to free unused fonts, too. */
845 clear_face_cache (int clear_fonts_p
)
847 #ifdef HAVE_WINDOW_SYSTEM
848 Lisp_Object tail
, frame
;
851 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
854 /* Not yet implemented. */
855 clear_font_cache (frame
);
858 /* From time to time see if we can unload some fonts. This also
859 frees all realized faces on all frames. Fonts needed by
860 faces will be loaded again when faces are realized again. */
861 clear_font_table_count
= 0;
863 FOR_EACH_FRAME (tail
, frame
)
865 struct frame
*f
= XFRAME (frame
);
866 if (FRAME_WINDOW_P (f
)
867 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
868 free_all_realized_faces (frame
);
873 /* Clear GCs of realized faces. */
874 FOR_EACH_FRAME (tail
, frame
)
876 struct frame
*f
= XFRAME (frame
);
877 if (FRAME_WINDOW_P (f
))
878 clear_face_gcs (FRAME_FACE_CACHE (f
));
880 clear_image_caches (Qnil
);
882 #endif /* HAVE_WINDOW_SYSTEM */
886 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
887 doc
: /* Clear face caches on all frames.
888 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
889 (Lisp_Object thoroughly
)
891 clear_face_cache (!NILP (thoroughly
));
893 ++windows_or_buffers_changed
;
898 /***********************************************************************
900 ***********************************************************************/
902 #ifdef HAVE_WINDOW_SYSTEM
904 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
905 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
906 A bitmap specification is either a string, a file name, or a list
907 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
908 HEIGHT is its height, and DATA is a string containing the bits of
909 the pixmap. Bits are stored row by row, each row occupies
910 \(WIDTH + 7)/8 bytes. */)
915 if (STRINGP (object
))
916 /* If OBJECT is a string, it's a file name. */
918 else if (CONSP (object
))
920 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
921 HEIGHT must be integers > 0, and DATA must be string large
922 enough to hold a bitmap of the specified size. */
923 Lisp_Object width
, height
, data
;
925 height
= width
= data
= Qnil
;
929 width
= XCAR (object
);
930 object
= XCDR (object
);
933 height
= XCAR (object
);
934 object
= XCDR (object
);
936 data
= XCAR (object
);
940 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
942 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
944 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
949 return pixmap_p
? Qt
: Qnil
;
953 /* Load a bitmap according to NAME (which is either a file name or a
954 pixmap spec) for use on frame F. Value is the bitmap_id (see
955 xfns.c). If NAME is nil, return with a bitmap id of zero. If
956 bitmap cannot be loaded, display a message saying so, and return
957 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
958 if these pointers are not null. */
961 load_pixmap (FRAME_PTR f
, Lisp_Object name
, unsigned int *w_ptr
, unsigned int *h_ptr
)
968 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
973 /* Decode a bitmap spec into a bitmap. */
978 w
= XINT (Fcar (name
));
979 h
= XINT (Fcar (Fcdr (name
)));
980 bits
= Fcar (Fcdr (Fcdr (name
)));
982 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
987 /* It must be a string -- a file name. */
988 bitmap_id
= x_create_bitmap_from_file (f
, name
);
994 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1005 ++npixmaps_allocated
;
1008 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1011 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1017 #endif /* HAVE_WINDOW_SYSTEM */
1021 /***********************************************************************
1023 ***********************************************************************/
1025 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1026 RGB_LIST should contain (at least) 3 lisp integers.
1027 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1030 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
1032 #define PARSE_RGB_LIST_FIELD(field) \
1033 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1035 color->field = XINT (XCAR (rgb_list)); \
1036 rgb_list = XCDR (rgb_list); \
1041 PARSE_RGB_LIST_FIELD (red
);
1042 PARSE_RGB_LIST_FIELD (green
);
1043 PARSE_RGB_LIST_FIELD (blue
);
1049 /* Lookup on frame F the color described by the lisp string COLOR.
1050 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1051 non-zero, then the `standard' definition of the same color is
1055 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
, XColor
*std_color
)
1057 Lisp_Object frame
, color_desc
;
1059 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1062 XSETFRAME (frame
, f
);
1064 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1065 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1069 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1072 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1074 rgb
= XCDR (XCDR (color_desc
));
1075 if (! parse_rgb_list (rgb
, tty_color
))
1078 /* Should we fill in STD_COLOR too? */
1081 /* Default STD_COLOR to the same as TTY_COLOR. */
1082 *std_color
= *tty_color
;
1084 /* Do a quick check to see if the returned descriptor is
1085 actually _exactly_ equal to COLOR, otherwise we have to
1086 lookup STD_COLOR separately. If it's impossible to lookup
1087 a standard color, we just give up and use TTY_COLOR. */
1088 if ((!STRINGP (XCAR (color_desc
))
1089 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1090 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1092 /* Look up STD_COLOR separately. */
1093 rgb
= call1 (Qtty_color_standard_values
, color
);
1094 if (! parse_rgb_list (rgb
, std_color
))
1101 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1102 /* We were called early during startup, and the colors are not
1103 yet set up in tty-defined-color-alist. Don't return a failure
1104 indication, since this produces the annoying "Unable to
1105 load color" messages in the *Messages* buffer. */
1108 /* tty-color-desc seems to have returned a bad value. */
1112 /* A version of defined_color for non-X frames. */
1115 tty_defined_color (struct frame
*f
, const char *color_name
,
1116 XColor
*color_def
, int alloc
)
1121 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1123 color_def
->blue
= 0;
1124 color_def
->green
= 0;
1127 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1129 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1131 if (strcmp (color_name
, "unspecified-fg") == 0)
1132 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1133 else if (strcmp (color_name
, "unspecified-bg") == 0)
1134 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1137 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1144 /* Decide if color named COLOR_NAME is valid for the display
1145 associated with the frame F; if so, return the rgb values in
1146 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1148 This does the right thing for any type of frame. */
1151 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
, int alloc
)
1153 if (!FRAME_WINDOW_P (f
))
1154 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1155 #ifdef HAVE_X_WINDOWS
1156 else if (FRAME_X_P (f
))
1157 return x_defined_color (f
, color_name
, color_def
, alloc
);
1160 else if (FRAME_W32_P (f
))
1161 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1164 else if (FRAME_NS_P (f
))
1165 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1172 /* Given the index IDX of a tty color on frame F, return its name, a
1176 tty_color_name (struct frame
*f
, int idx
)
1178 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1181 Lisp_Object coldesc
;
1183 XSETFRAME (frame
, f
);
1184 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1186 if (!NILP (coldesc
))
1187 return XCAR (coldesc
);
1190 /* We can have an MSDOG frame under -nw for a short window of
1191 opportunity before internal_terminal_init is called. DTRT. */
1192 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1193 return msdos_stdcolor_name (idx
);
1196 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1197 return build_string (unspecified_fg
);
1198 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1199 return build_string (unspecified_bg
);
1201 return Qunspecified
;
1205 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1208 The criterion implemented here is not a terribly sophisticated one. */
1211 face_color_gray_p (struct frame
*f
, const char *color_name
)
1216 if (defined_color (f
, color_name
, &color
, 0))
1217 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1218 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1220 ((eabs (color
.red
- color
.green
)
1221 < max (color
.red
, color
.green
) / 20)
1222 && (eabs (color
.green
- color
.blue
)
1223 < max (color
.green
, color
.blue
) / 20)
1224 && (eabs (color
.blue
- color
.red
)
1225 < max (color
.blue
, color
.red
) / 20)));
1233 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1234 BACKGROUND_P non-zero means the color will be used as background
1238 face_color_supported_p (struct frame
*f
, const char *color_name
, int background_p
)
1243 XSETFRAME (frame
, f
);
1245 #ifdef HAVE_WINDOW_SYSTEM
1247 ? (!NILP (Fxw_display_color_p (frame
))
1248 || xstrcasecmp (color_name
, "black") == 0
1249 || xstrcasecmp (color_name
, "white") == 0
1251 && face_color_gray_p (f
, color_name
))
1252 || (!NILP (Fx_display_grayscale_p (frame
))
1253 && face_color_gray_p (f
, color_name
)))
1256 tty_defined_color (f
, color_name
, ¬_used
, 0);
1260 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1261 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1262 FRAME specifies the frame and thus the display for interpreting COLOR.
1263 If FRAME is nil or omitted, use the selected frame. */)
1264 (Lisp_Object color
, Lisp_Object frame
)
1268 CHECK_STRING (color
);
1270 frame
= selected_frame
;
1272 CHECK_FRAME (frame
);
1274 return face_color_gray_p (f
, SSDATA (color
)) ? Qt
: Qnil
;
1278 DEFUN ("color-supported-p", Fcolor_supported_p
,
1279 Scolor_supported_p
, 1, 3, 0,
1280 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1281 BACKGROUND-P non-nil means COLOR is used as a background.
1282 Otherwise, this function tells whether it can be used as a foreground.
1283 If FRAME is nil or omitted, use the selected frame.
1284 COLOR must be a valid color name. */)
1285 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1289 CHECK_STRING (color
);
1291 frame
= selected_frame
;
1293 CHECK_FRAME (frame
);
1295 if (face_color_supported_p (f
, SSDATA (color
), !NILP (background_p
)))
1301 /* Load color with name NAME for use by face FACE on frame F.
1302 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1303 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1304 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1305 pixel color. If color cannot be loaded, display a message, and
1306 return the foreground, background or underline color of F, but
1307 record that fact in flags of the face so that we don't try to free
1311 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
, enum lface_attribute_index target_index
)
1315 xassert (STRINGP (name
));
1316 xassert (target_index
== LFACE_FOREGROUND_INDEX
1317 || target_index
== LFACE_BACKGROUND_INDEX
1318 || target_index
== LFACE_UNDERLINE_INDEX
1319 || target_index
== LFACE_OVERLINE_INDEX
1320 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1321 || target_index
== LFACE_BOX_INDEX
);
1323 /* if the color map is full, defined_color will return a best match
1324 to the values in an existing cell. */
1325 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1327 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1329 switch (target_index
)
1331 case LFACE_FOREGROUND_INDEX
:
1332 face
->foreground_defaulted_p
= 1;
1333 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1336 case LFACE_BACKGROUND_INDEX
:
1337 face
->background_defaulted_p
= 1;
1338 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1341 case LFACE_UNDERLINE_INDEX
:
1342 face
->underline_defaulted_p
= 1;
1343 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1346 case LFACE_OVERLINE_INDEX
:
1347 face
->overline_color_defaulted_p
= 1;
1348 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1351 case LFACE_STRIKE_THROUGH_INDEX
:
1352 face
->strike_through_color_defaulted_p
= 1;
1353 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1356 case LFACE_BOX_INDEX
:
1357 face
->box_color_defaulted_p
= 1;
1358 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1367 ++ncolors_allocated
;
1374 #ifdef HAVE_WINDOW_SYSTEM
1376 /* Load colors for face FACE which is used on frame F. Colors are
1377 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1378 of ATTRS. If the background color specified is not supported on F,
1379 try to emulate gray colors with a stipple from Vface_default_stipple. */
1382 load_face_colors (struct frame
*f
, struct face
*face
, Lisp_Object
*attrs
)
1386 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1387 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1389 /* Swap colors if face is inverse-video. */
1390 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1398 /* Check for support for foreground, not for background because
1399 face_color_supported_p is smart enough to know that grays are
1400 "supported" as background because we are supposed to use stipple
1402 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1403 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1405 x_destroy_bitmap (f
, face
->stipple
);
1406 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1407 &face
->pixmap_w
, &face
->pixmap_h
);
1410 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1411 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1415 /* Free color PIXEL on frame F. */
1418 unload_color (struct frame
*f
, long unsigned int pixel
)
1420 #ifdef HAVE_X_WINDOWS
1424 x_free_colors (f
, &pixel
, 1);
1431 /* Free colors allocated for FACE. */
1434 free_face_colors (struct frame
*f
, struct face
*face
)
1436 /* PENDING(NS): need to do something here? */
1437 #ifdef HAVE_X_WINDOWS
1438 if (face
->colors_copied_bitwise_p
)
1443 if (!face
->foreground_defaulted_p
)
1445 x_free_colors (f
, &face
->foreground
, 1);
1446 IF_DEBUG (--ncolors_allocated
);
1449 if (!face
->background_defaulted_p
)
1451 x_free_colors (f
, &face
->background
, 1);
1452 IF_DEBUG (--ncolors_allocated
);
1455 if (face
->underline_p
1456 && !face
->underline_defaulted_p
)
1458 x_free_colors (f
, &face
->underline_color
, 1);
1459 IF_DEBUG (--ncolors_allocated
);
1462 if (face
->overline_p
1463 && !face
->overline_color_defaulted_p
)
1465 x_free_colors (f
, &face
->overline_color
, 1);
1466 IF_DEBUG (--ncolors_allocated
);
1469 if (face
->strike_through_p
1470 && !face
->strike_through_color_defaulted_p
)
1472 x_free_colors (f
, &face
->strike_through_color
, 1);
1473 IF_DEBUG (--ncolors_allocated
);
1476 if (face
->box
!= FACE_NO_BOX
1477 && !face
->box_color_defaulted_p
)
1479 x_free_colors (f
, &face
->box_color
, 1);
1480 IF_DEBUG (--ncolors_allocated
);
1484 #endif /* HAVE_X_WINDOWS */
1487 #endif /* HAVE_WINDOW_SYSTEM */
1491 /***********************************************************************
1493 ***********************************************************************/
1495 /* An enumerator for each field of an XLFD font name. */
1516 /* An enumerator for each possible slant value of a font. Taken from
1517 the XLFD specification. */
1525 XLFD_SLANT_REVERSE_ITALIC
,
1526 XLFD_SLANT_REVERSE_OBLIQUE
,
1530 /* Relative font weight according to XLFD documentation. */
1534 XLFD_WEIGHT_UNKNOWN
,
1535 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1536 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1537 XLFD_WEIGHT_LIGHT
, /* 30 */
1538 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1539 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1540 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1541 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1542 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1543 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1546 /* Relative proportionate width. */
1550 XLFD_SWIDTH_UNKNOWN
,
1551 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1552 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1553 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1554 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1555 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1556 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1557 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1558 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1559 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1562 /* Order by which font selection chooses fonts. The default values
1563 mean `first, find a best match for the font width, then for the
1564 font height, then for weight, then for slant.' This variable can be
1565 set via set-face-font-sort-order. */
1567 static int font_sort_order
[4];
1569 #ifdef HAVE_WINDOW_SYSTEM
1571 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1574 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1576 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1577 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1580 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1582 enum font_property_index idx
= font_props_for_sorting
[i
];
1583 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1586 if (idx
<= FONT_REGISTRY_INDEX
)
1589 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1591 result
= STRINGP (val2
) ? 1 : 0;
1595 if (INTEGERP (val1
))
1596 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1598 result
= INTEGERP (val2
) ? 1 : 0;
1606 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1607 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1608 If FAMILY is omitted or nil, list all families.
1609 Otherwise, FAMILY must be a string, possibly containing wildcards
1611 If FRAME is omitted or nil, use the selected frame.
1612 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1613 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1614 FAMILY is the font family name. POINT-SIZE is the size of the
1615 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1616 width, weight and slant of the font. These symbols are the same as for
1617 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1618 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1619 giving the registry and encoding of the font.
1620 The result list is sorted according to the current setting of
1621 the face font sort order. */)
1622 (Lisp_Object family
, Lisp_Object frame
)
1624 Lisp_Object font_spec
, list
, *drivers
, vec
;
1625 int i
, nfonts
, ndrivers
;
1629 frame
= selected_frame
;
1630 CHECK_LIVE_FRAME (frame
);
1632 font_spec
= Ffont_spec (0, NULL
);
1635 CHECK_STRING (family
);
1636 font_parse_family_registry (family
, Qnil
, font_spec
);
1639 list
= font_list_entities (frame
, font_spec
);
1643 /* Sort the font entities. */
1644 for (i
= 0; i
< 4; i
++)
1645 switch (font_sort_order
[i
])
1648 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1649 case XLFD_POINT_SIZE
:
1650 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1652 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1654 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1656 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1657 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1658 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1659 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1661 ndrivers
= XINT (Flength (list
));
1662 drivers
= alloca (sizeof (Lisp_Object
) * ndrivers
);
1663 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1664 drivers
[i
] = XCAR (list
);
1665 vec
= Fvconcat (ndrivers
, drivers
);
1666 nfonts
= ASIZE (vec
);
1668 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1669 compare_fonts_by_sort_order
);
1672 for (i
= nfonts
- 1; i
>= 0; --i
)
1674 Lisp_Object font
= AREF (vec
, i
);
1675 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1677 Lisp_Object spacing
;
1679 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1680 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1681 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1682 XFRAME (frame
)->resy
);
1683 ASET (v
, 2, make_number (point
));
1684 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1685 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1686 spacing
= Ffont_get (font
, QCspacing
);
1687 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1688 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1689 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1691 result
= Fcons (v
, result
);
1697 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1698 doc
: /* Return a list of the names of available fonts matching PATTERN.
1699 If optional arguments FACE and FRAME are specified, return only fonts
1700 the same size as FACE on FRAME.
1702 PATTERN should be a string containing a font name in the XLFD,
1703 Fontconfig, or GTK format. A font name given in the XLFD format may
1704 contain wildcard characters:
1705 the * character matches any substring, and
1706 the ? character matches any single character.
1707 PATTERN is case-insensitive.
1709 The return value is a list of strings, suitable as arguments to
1712 Fonts Emacs can't use may or may not be excluded
1713 even if they match PATTERN and FACE.
1714 The optional fourth argument MAXIMUM sets a limit on how many
1715 fonts to match. The first MAXIMUM fonts are reported.
1716 The optional fifth argument WIDTH, if specified, is a number of columns
1717 occupied by a character of a font. In that case, return only fonts
1718 the WIDTH times as wide as FACE on FRAME. */)
1719 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
, Lisp_Object maximum
, Lisp_Object width
)
1722 int size
, avgwidth
IF_LINT (= 0);
1725 CHECK_STRING (pattern
);
1727 if (! NILP (maximum
))
1728 CHECK_NATNUM (maximum
);
1731 CHECK_NUMBER (width
);
1733 /* We can't simply call check_x_frame because this function may be
1734 called before any frame is created. */
1736 frame
= selected_frame
;
1737 f
= frame_or_selected_frame (frame
, 2);
1738 if (! FRAME_WINDOW_P (f
))
1740 /* Perhaps we have not yet created any frame. */
1746 /* Determine the width standard for comparison with the fonts we find. */
1752 /* This is of limited utility since it works with character
1753 widths. Keep it for compatibility. --gerd. */
1754 int face_id
= lookup_named_face (f
, face
, 0);
1755 struct face
*width_face
= (face_id
< 0
1757 : FACE_FROM_ID (f
, face_id
));
1759 if (width_face
&& width_face
->font
)
1761 size
= width_face
->font
->pixel_size
;
1762 avgwidth
= width_face
->font
->average_width
;
1766 size
= FRAME_FONT (f
)->pixel_size
;
1767 avgwidth
= FRAME_FONT (f
)->average_width
;
1770 avgwidth
*= XINT (width
);
1774 Lisp_Object font_spec
;
1775 Lisp_Object args
[2], tail
;
1777 font_spec
= font_spec_from_name (pattern
);
1778 if (!FONTP (font_spec
))
1779 signal_error ("Invalid font name", pattern
);
1783 Ffont_put (font_spec
, QCsize
, make_number (size
));
1784 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1786 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1787 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1789 Lisp_Object font_entity
;
1791 font_entity
= XCAR (tail
);
1792 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1793 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1794 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1796 /* This is a scalable font. For backward compatibility,
1797 we set the specified size. */
1798 font_entity
= copy_font_spec (font_entity
);
1799 ASET (font_entity
, FONT_SIZE_INDEX
,
1800 AREF (font_spec
, FONT_SIZE_INDEX
));
1802 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1805 /* We don't have to check fontsets. */
1807 args
[1] = list_fontsets (f
, pattern
, size
);
1808 return Fnconc (2, args
);
1812 #endif /* HAVE_WINDOW_SYSTEM */
1815 /***********************************************************************
1817 ***********************************************************************/
1819 /* Access face attributes of face LFACE, a Lisp vector. */
1821 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1822 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1823 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1824 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1825 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1826 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1827 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1828 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1829 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1830 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1831 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1832 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1833 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1834 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1835 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1836 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1837 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1840 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1841 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1843 #define LFACEP(LFACE) \
1845 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
1846 && EQ (AREF (LFACE, 0), Qface))
1852 /* Check consistency of Lisp face attribute vector ATTRS. */
1855 check_lface_attrs (attrs
)
1858 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1859 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1860 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1861 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1862 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1863 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1864 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1865 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1866 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1867 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1868 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1869 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1870 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1871 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1872 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1873 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1874 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1875 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1876 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1877 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1878 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1879 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1880 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1881 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
1882 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1883 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1884 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1885 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1886 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1887 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1888 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1889 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1890 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1891 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1892 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1893 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1894 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1895 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1896 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1897 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1898 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1899 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1900 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1901 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1902 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1903 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1904 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1905 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1906 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1907 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1908 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1909 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1910 #ifdef HAVE_WINDOW_SYSTEM
1911 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1912 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1913 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1914 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1915 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1916 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1917 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1918 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1919 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
1924 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1932 xassert (LFACEP (lface
));
1933 check_lface_attrs (XVECTOR (lface
)->contents
);
1937 #else /* GLYPH_DEBUG == 0 */
1939 #define check_lface_attrs(attrs) (void) 0
1940 #define check_lface(lface) (void) 0
1942 #endif /* GLYPH_DEBUG == 0 */
1946 /* Face-merge cycle checking. */
1948 enum named_merge_point_kind
1950 NAMED_MERGE_POINT_NORMAL
,
1951 NAMED_MERGE_POINT_REMAP
1954 /* A `named merge point' is simply a point during face-merging where we
1955 look up a face by name. We keep a stack of which named lookups we're
1956 currently processing so that we can easily detect cycles, using a
1957 linked- list of struct named_merge_point structures, typically
1958 allocated on the stack frame of the named lookup functions which are
1959 active (so no consing is required). */
1960 struct named_merge_point
1962 Lisp_Object face_name
;
1963 enum named_merge_point_kind named_merge_point_kind
;
1964 struct named_merge_point
*prev
;
1968 /* If a face merging cycle is detected for FACE_NAME, return 0,
1969 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1970 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1971 pointed to by NAMED_MERGE_POINTS, and return 1. */
1974 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1975 Lisp_Object face_name
,
1976 enum named_merge_point_kind named_merge_point_kind
,
1977 struct named_merge_point
**named_merge_points
)
1979 struct named_merge_point
*prev
;
1981 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1982 if (EQ (face_name
, prev
->face_name
))
1984 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1985 /* A cycle, so fail. */
1987 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1988 /* A remap `hides ' any previous normal merge points
1989 (because the remap means that it's actually different face),
1990 so as we know the current merge point must be normal, we
1991 can just assume it's OK. */
1995 new_named_merge_point
->face_name
= face_name
;
1996 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1997 new_named_merge_point
->prev
= *named_merge_points
;
1999 *named_merge_points
= new_named_merge_point
;
2006 #if 0 /* Seems to be unused. */
2008 internal_resolve_face_name (nargs
, args
)
2012 return Fget (args
[0], args
[1]);
2016 resolve_face_name_error (ignore
)
2023 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2024 to make it a symbol. If FACE_NAME is an alias for another face,
2025 return that face's name.
2027 Return default face in case of errors. */
2030 resolve_face_name (Lisp_Object face_name
, int signal_p
)
2032 Lisp_Object orig_face
;
2033 Lisp_Object tortoise
, hare
;
2035 if (STRINGP (face_name
))
2036 face_name
= intern (SSDATA (face_name
));
2038 if (NILP (face_name
) || !SYMBOLP (face_name
))
2041 orig_face
= face_name
;
2042 tortoise
= hare
= face_name
;
2047 hare
= Fget (hare
, Qface_alias
);
2048 if (NILP (hare
) || !SYMBOLP (hare
))
2052 hare
= Fget (hare
, Qface_alias
);
2053 if (NILP (hare
) || !SYMBOLP (hare
))
2056 tortoise
= Fget (tortoise
, Qface_alias
);
2057 if (EQ (hare
, tortoise
))
2060 xsignal1 (Qcircular_list
, orig_face
);
2069 /* Return the face definition of FACE_NAME on frame F. F null means
2070 return the definition for new frames. FACE_NAME may be a string or
2071 a symbol (apparently Emacs 20.2 allowed strings as face names in
2072 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2073 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2074 is zero, value is nil if FACE_NAME is not a valid face name. */
2075 static INLINE Lisp_Object
2076 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2081 lface
= assq_no_quit (face_name
, f
->face_alist
);
2083 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2086 lface
= XCDR (lface
);
2088 signal_error ("Invalid face", face_name
);
2090 check_lface (lface
);
2095 /* Return the face definition of FACE_NAME on frame F. F null means
2096 return the definition for new frames. FACE_NAME may be a string or
2097 a symbol (apparently Emacs 20.2 allowed strings as face names in
2098 face text properties; Ediff uses that). If FACE_NAME is an alias
2099 for another face, return that face's definition. If SIGNAL_P is
2100 non-zero, signal an error if FACE_NAME is not a valid face name.
2101 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2103 static INLINE Lisp_Object
2104 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
2106 face_name
= resolve_face_name (face_name
, signal_p
);
2107 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2111 /* Get face attributes of face FACE_NAME from frame-local faces on
2112 frame F. Store the resulting attributes in ATTRS which must point
2113 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2114 is non-zero, signal an error if FACE_NAME does not name a face.
2115 Otherwise, value is zero if FACE_NAME is not a face. */
2118 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
)
2122 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2125 memcpy (attrs
, XVECTOR (lface
)->contents
,
2126 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2128 return !NILP (lface
);
2131 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2132 F. Store the resulting attributes in ATTRS which must point to a
2133 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2134 alias for another face, use that face's definition. If SIGNAL_P is
2135 non-zero, signal an error if FACE_NAME does not name a face.
2136 Otherwise, value is zero if FACE_NAME is not a face. */
2139 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*attrs
, int signal_p
, struct named_merge_point
*named_merge_points
)
2141 Lisp_Object face_remapping
;
2143 face_name
= resolve_face_name (face_name
, signal_p
);
2145 /* See if SYMBOL has been remapped to some other face (usually this
2146 is done buffer-locally). */
2147 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2148 if (CONSP (face_remapping
))
2150 struct named_merge_point named_merge_point
;
2152 if (push_named_merge_point (&named_merge_point
,
2153 face_name
, NAMED_MERGE_POINT_REMAP
,
2154 &named_merge_points
))
2158 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2159 attrs
[i
] = Qunspecified
;
2161 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2162 signal_p
, named_merge_points
);
2166 /* Default case, no remapping. */
2167 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2171 /* Non-zero if all attributes in face attribute vector ATTRS are
2172 specified, i.e. are non-nil. */
2175 lface_fully_specified_p (Lisp_Object
*attrs
)
2179 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2180 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2181 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2184 return i
== LFACE_VECTOR_SIZE
;
2187 #ifdef HAVE_WINDOW_SYSTEM
2189 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2190 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2191 exception is `font' attribute. It is set to FONT_OBJECT regardless
2195 set_lface_from_font (struct frame
*f
, Lisp_Object lface
, Lisp_Object font_object
, int force_p
)
2198 struct font
*font
= XFONT_OBJECT (font_object
);
2200 /* Set attributes only if unspecified, otherwise face defaults for
2201 new frames would never take effect. If the font doesn't have a
2202 specific property, set a normal value for that. */
2204 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2206 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2208 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2211 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2213 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2215 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2218 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2220 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2223 LFACE_HEIGHT (lface
) = make_number (pt
);
2226 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2228 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2229 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2231 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2233 val
= FONT_SLANT_FOR_FACE (font_object
);
2234 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2236 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2238 val
= FONT_WIDTH_FOR_FACE (font_object
);
2239 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2242 LFACE_FONT (lface
) = font_object
;
2246 #endif /* HAVE_WINDOW_SYSTEM */
2249 /* Merges the face height FROM with the face height TO, and returns the
2250 merged height. If FROM is an invalid height, then INVALID is
2251 returned instead. FROM and TO may be either absolute face heights or
2252 `relative' heights; the returned value is always an absolute height
2253 unless both FROM and TO are relative. */
2256 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2258 Lisp_Object result
= invalid
;
2260 if (INTEGERP (from
))
2261 /* FROM is absolute, just use it as is. */
2263 else if (FLOATP (from
))
2264 /* FROM is a scale, use it to adjust TO. */
2267 /* relative X absolute => absolute */
2268 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2269 else if (FLOATP (to
))
2270 /* relative X relative => relative */
2271 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2272 else if (UNSPECIFIEDP (to
))
2275 else if (FUNCTIONP (from
))
2276 /* FROM is a function, which use to adjust TO. */
2278 /* Call function with current height as argument.
2279 From is the new height. */
2280 Lisp_Object args
[2];
2284 result
= safe_call (2, args
);
2286 /* Ensure that if TO was absolute, so is the result. */
2287 if (INTEGERP (to
) && !INTEGERP (result
))
2295 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2296 store the resulting attributes in TO, which must be already be
2297 completely specified and contain only absolute attributes. Every
2298 specified attribute of FROM overrides the corresponding attribute of
2299 TO; relative attributes in FROM are merged with the absolute value in
2300 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2301 loops in face inheritance/remapping; it should be 0 when called from
2305 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2309 /* If FROM inherits from some other faces, merge their attributes into
2310 TO before merging FROM's direct attributes. Note that an :inherit
2311 attribute of `unspecified' is the same as one of nil; we never
2312 merge :inherit attributes, so nil is more correct, but lots of
2313 other code uses `unspecified' as a generic value for face attributes. */
2314 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2315 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2316 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2318 i
= LFACE_FONT_INDEX
;
2319 if (!UNSPECIFIEDP (from
[i
]))
2321 if (!UNSPECIFIEDP (to
[i
]))
2322 to
[i
] = merge_font_spec (from
[i
], to
[i
]);
2324 to
[i
] = copy_font_spec (from
[i
]);
2325 if (! NILP (AREF (to
[i
], FONT_FOUNDRY_INDEX
)))
2326 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FOUNDRY_INDEX
));
2327 if (! NILP (AREF (to
[i
], FONT_FAMILY_INDEX
)))
2328 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (to
[i
], FONT_FAMILY_INDEX
));
2329 if (! NILP (AREF (to
[i
], FONT_WEIGHT_INDEX
)))
2330 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (to
[i
]);
2331 if (! NILP (AREF (to
[i
], FONT_SLANT_INDEX
)))
2332 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (to
[i
]);
2333 if (! NILP (AREF (to
[i
], FONT_WIDTH_INDEX
)))
2334 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (to
[i
]);
2335 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2338 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2339 if (!UNSPECIFIEDP (from
[i
]))
2341 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2343 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2344 font_clear_prop (to
, FONT_SIZE_INDEX
);
2346 else if (i
!= LFACE_FONT_INDEX
2347 && ! EQ (to
[i
], from
[i
]))
2350 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2351 font_clear_prop (to
,
2352 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2353 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2354 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2355 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2356 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2357 : FONT_SLANT_INDEX
));
2361 /* TO is always an absolute face, which should inherit from nothing.
2362 We blindly copy the :inherit attribute above and fix it up here. */
2363 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2366 /* Merge the named face FACE_NAME on frame F, into the vector of face
2367 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2368 inheritance. Returns true if FACE_NAME is a valid face name and
2369 merging succeeded. */
2372 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
, struct named_merge_point
*named_merge_points
)
2374 struct named_merge_point named_merge_point
;
2376 if (push_named_merge_point (&named_merge_point
,
2377 face_name
, NAMED_MERGE_POINT_NORMAL
,
2378 &named_merge_points
))
2380 struct gcpro gcpro1
;
2381 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2382 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2386 GCPRO1 (named_merge_point
.face_name
);
2387 merge_face_vectors (f
, from
, to
, named_merge_points
);
2398 /* Merge face attributes from the lisp `face reference' FACE_REF on
2399 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2400 problems with FACE_REF cause an error message to be shown. Return
2401 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2402 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2403 list structure; it may be 0 for most callers.
2405 FACE_REF may be a single face specification or a list of such
2406 specifications. Each face specification can be:
2408 1. A symbol or string naming a Lisp face.
2410 2. A property list of the form (KEYWORD VALUE ...) where each
2411 KEYWORD is a face attribute name, and value is an appropriate value
2414 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2415 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2416 for compatibility with 20.2.
2418 Face specifications earlier in lists take precedence over later
2422 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
, int err_msgs
, struct named_merge_point
*named_merge_points
)
2424 int ok
= 1; /* Succeed without an error? */
2426 if (CONSP (face_ref
))
2428 Lisp_Object first
= XCAR (face_ref
);
2430 if (EQ (first
, Qforeground_color
)
2431 || EQ (first
, Qbackground_color
))
2433 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2434 . COLOR). COLOR must be a string. */
2435 Lisp_Object color_name
= XCDR (face_ref
);
2436 Lisp_Object color
= first
;
2438 if (STRINGP (color_name
))
2440 if (EQ (color
, Qforeground_color
))
2441 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2443 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2448 add_to_log ("Invalid face color", color_name
, Qnil
);
2452 else if (SYMBOLP (first
)
2453 && *SDATA (SYMBOL_NAME (first
)) == ':')
2455 /* Assume this is the property list form. */
2456 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2458 Lisp_Object keyword
= XCAR (face_ref
);
2459 Lisp_Object value
= XCAR (XCDR (face_ref
));
2462 /* Specifying `unspecified' is a no-op. */
2463 if (EQ (value
, Qunspecified
))
2465 else if (EQ (keyword
, QCfamily
))
2467 if (STRINGP (value
))
2469 to
[LFACE_FAMILY_INDEX
] = value
;
2470 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2475 else if (EQ (keyword
, QCfoundry
))
2477 if (STRINGP (value
))
2479 to
[LFACE_FOUNDRY_INDEX
] = value
;
2480 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2485 else if (EQ (keyword
, QCheight
))
2487 Lisp_Object new_height
=
2488 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2490 if (! NILP (new_height
))
2492 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2493 font_clear_prop (to
, FONT_SIZE_INDEX
);
2498 else if (EQ (keyword
, QCweight
))
2500 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2502 to
[LFACE_WEIGHT_INDEX
] = value
;
2503 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2508 else if (EQ (keyword
, QCslant
))
2510 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2512 to
[LFACE_SLANT_INDEX
] = value
;
2513 font_clear_prop (to
, FONT_SLANT_INDEX
);
2518 else if (EQ (keyword
, QCunderline
))
2523 to
[LFACE_UNDERLINE_INDEX
] = value
;
2527 else if (EQ (keyword
, QCoverline
))
2532 to
[LFACE_OVERLINE_INDEX
] = value
;
2536 else if (EQ (keyword
, QCstrike_through
))
2541 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2545 else if (EQ (keyword
, QCbox
))
2548 value
= make_number (1);
2549 if (INTEGERP (value
)
2553 to
[LFACE_BOX_INDEX
] = value
;
2557 else if (EQ (keyword
, QCinverse_video
)
2558 || EQ (keyword
, QCreverse_video
))
2560 if (EQ (value
, Qt
) || NILP (value
))
2561 to
[LFACE_INVERSE_INDEX
] = value
;
2565 else if (EQ (keyword
, QCforeground
))
2567 if (STRINGP (value
))
2568 to
[LFACE_FOREGROUND_INDEX
] = value
;
2572 else if (EQ (keyword
, QCbackground
))
2574 if (STRINGP (value
))
2575 to
[LFACE_BACKGROUND_INDEX
] = value
;
2579 else if (EQ (keyword
, QCstipple
))
2581 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
2582 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2583 if (!NILP (pixmap_p
))
2584 to
[LFACE_STIPPLE_INDEX
] = value
;
2589 else if (EQ (keyword
, QCwidth
))
2591 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2593 to
[LFACE_SWIDTH_INDEX
] = value
;
2594 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2599 else if (EQ (keyword
, QCinherit
))
2601 /* This is not really very useful; it's just like a
2602 normal face reference. */
2603 if (! merge_face_ref (f
, value
, to
,
2604 err_msgs
, named_merge_points
))
2612 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2616 face_ref
= XCDR (XCDR (face_ref
));
2621 /* This is a list of face refs. Those at the beginning of the
2622 list take precedence over what follows, so we have to merge
2623 from the end backwards. */
2624 Lisp_Object next
= XCDR (face_ref
);
2627 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2629 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2635 /* FACE_REF ought to be a face name. */
2636 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2637 if (!ok
&& err_msgs
)
2638 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2645 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2646 Sinternal_make_lisp_face
, 1, 2, 0,
2647 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2648 If FACE was not known as a face before, create a new one.
2649 If optional argument FRAME is specified, make a frame-local face
2650 for that frame. Otherwise operate on the global face definition.
2651 Value is a vector of face attributes. */)
2652 (Lisp_Object face
, Lisp_Object frame
)
2654 Lisp_Object global_lface
, lface
;
2658 CHECK_SYMBOL (face
);
2659 global_lface
= lface_from_face_name (NULL
, face
, 0);
2663 CHECK_LIVE_FRAME (frame
);
2665 lface
= lface_from_face_name (f
, face
, 0);
2668 f
= NULL
, lface
= Qnil
;
2670 /* Add a global definition if there is none. */
2671 if (NILP (global_lface
))
2673 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2675 ASET (global_lface
, 0, Qface
);
2676 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2677 Vface_new_frame_defaults
);
2679 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2680 face id to Lisp face is given by the vector lface_id_to_name.
2681 The mapping from Lisp face to Lisp face id is given by the
2682 property `face' of the Lisp face name. */
2683 if (next_lface_id
== lface_id_to_name_size
)
2685 int new_size
= max (50, 2 * lface_id_to_name_size
);
2686 int sz
= new_size
* sizeof *lface_id_to_name
;
2687 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2688 lface_id_to_name_size
= new_size
;
2691 lface_id_to_name
[next_lface_id
] = face
;
2692 Fput (face
, Qface
, make_number (next_lface_id
));
2696 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2697 ASET (global_lface
, i
, Qunspecified
);
2699 /* Add a frame-local definition. */
2704 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2706 ASET (lface
, 0, Qface
);
2707 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2710 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2711 ASET (lface
, i
, Qunspecified
);
2714 lface
= global_lface
;
2716 /* Changing a named face means that all realized faces depending on
2717 that face are invalid. Since we cannot tell which realized faces
2718 depend on the face, make sure they are all removed. This is done
2719 by incrementing face_change_count. The next call to
2720 init_iterator will then free realized faces. */
2721 if (NILP (Fget (face
, Qface_no_inherit
)))
2723 ++face_change_count
;
2724 ++windows_or_buffers_changed
;
2727 xassert (LFACEP (lface
));
2728 check_lface (lface
);
2733 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2734 Sinternal_lisp_face_p
, 1, 2, 0,
2735 doc
: /* Return non-nil if FACE names a face.
2736 FACE should be a symbol or string.
2737 If optional second argument FRAME is non-nil, check for the
2738 existence of a frame-local face with name FACE on that frame.
2739 Otherwise check for the existence of a global face. */)
2740 (Lisp_Object face
, Lisp_Object frame
)
2744 face
= resolve_face_name (face
, 1);
2748 CHECK_LIVE_FRAME (frame
);
2749 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2752 lface
= lface_from_face_name (NULL
, face
, 0);
2758 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2759 Sinternal_copy_lisp_face
, 4, 4, 0,
2760 doc
: /* Copy face FROM to TO.
2761 If FRAME is t, copy the global face definition of FROM.
2762 Otherwise, copy the frame-local definition of FROM on FRAME.
2763 If NEW-FRAME is a frame, copy that data into the frame-local
2764 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2765 FRAME controls where the data is copied to.
2767 The value is TO. */)
2768 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2770 Lisp_Object lface
, copy
;
2772 CHECK_SYMBOL (from
);
2777 /* Copy global definition of FROM. We don't make copies of
2778 strings etc. because 20.2 didn't do it either. */
2779 lface
= lface_from_face_name (NULL
, from
, 1);
2780 copy
= Finternal_make_lisp_face (to
, Qnil
);
2784 /* Copy frame-local definition of FROM. */
2785 if (NILP (new_frame
))
2787 CHECK_LIVE_FRAME (frame
);
2788 CHECK_LIVE_FRAME (new_frame
);
2789 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2790 copy
= Finternal_make_lisp_face (to
, new_frame
);
2793 memcpy (XVECTOR (copy
)->contents
, XVECTOR (lface
)->contents
,
2794 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2796 /* Changing a named face means that all realized faces depending on
2797 that face are invalid. Since we cannot tell which realized faces
2798 depend on the face, make sure they are all removed. This is done
2799 by incrementing face_change_count. The next call to
2800 init_iterator will then free realized faces. */
2801 if (NILP (Fget (to
, Qface_no_inherit
)))
2803 ++face_change_count
;
2804 ++windows_or_buffers_changed
;
2811 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2812 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2813 doc
: /* Set attribute ATTR of FACE to VALUE.
2814 FRAME being a frame means change the face on that frame.
2815 FRAME nil means change the face of the selected frame.
2816 FRAME t means change the default for new frames.
2817 FRAME 0 means change the face on all frames, and change the default
2819 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2822 Lisp_Object old_value
= Qnil
;
2823 /* Set one of enum font_property_index (> 0) if ATTR is one of
2824 font-related attributes other than QCfont and QCfontset. */
2825 enum font_property_index prop_index
= 0;
2827 CHECK_SYMBOL (face
);
2828 CHECK_SYMBOL (attr
);
2830 face
= resolve_face_name (face
, 1);
2832 /* If FRAME is 0, change face on all frames, and change the
2833 default for new frames. */
2834 if (INTEGERP (frame
) && XINT (frame
) == 0)
2837 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2838 FOR_EACH_FRAME (tail
, frame
)
2839 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2843 /* Set lface to the Lisp attribute vector of FACE. */
2846 lface
= lface_from_face_name (NULL
, face
, 1);
2848 /* When updating face-new-frame-defaults, we put :ignore-defface
2849 where the caller wants `unspecified'. This forces the frame
2850 defaults to ignore the defface value. Otherwise, the defface
2851 will take effect, which is generally not what is intended.
2852 The value of that attribute will be inherited from some other
2853 face during face merging. See internal_merge_in_global_face. */
2854 if (UNSPECIFIEDP (value
))
2855 value
= Qignore_defface
;
2860 frame
= selected_frame
;
2862 CHECK_LIVE_FRAME (frame
);
2863 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2865 /* If a frame-local face doesn't exist yet, create one. */
2867 lface
= Finternal_make_lisp_face (face
, frame
);
2870 if (EQ (attr
, QCfamily
))
2872 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2874 CHECK_STRING (value
);
2875 if (SCHARS (value
) == 0)
2876 signal_error ("Invalid face family", value
);
2878 old_value
= LFACE_FAMILY (lface
);
2879 LFACE_FAMILY (lface
) = value
;
2880 prop_index
= FONT_FAMILY_INDEX
;
2882 else if (EQ (attr
, QCfoundry
))
2884 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2886 CHECK_STRING (value
);
2887 if (SCHARS (value
) == 0)
2888 signal_error ("Invalid face foundry", value
);
2890 old_value
= LFACE_FOUNDRY (lface
);
2891 LFACE_FOUNDRY (lface
) = value
;
2892 prop_index
= FONT_FOUNDRY_INDEX
;
2894 else if (EQ (attr
, QCheight
))
2896 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2898 if (EQ (face
, Qdefault
))
2900 /* The default face must have an absolute size. */
2901 if (!INTEGERP (value
) || XINT (value
) <= 0)
2902 signal_error ("Default face height not absolute and positive", value
);
2906 /* For non-default faces, do a test merge with a random
2907 height to see if VALUE's ok. */
2908 Lisp_Object test
= merge_face_heights (value
,
2911 if (!INTEGERP (test
) || XINT (test
) <= 0)
2912 signal_error ("Face height does not produce a positive integer", value
);
2916 old_value
= LFACE_HEIGHT (lface
);
2917 LFACE_HEIGHT (lface
) = value
;
2918 prop_index
= FONT_SIZE_INDEX
;
2920 else if (EQ (attr
, QCweight
))
2922 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2924 CHECK_SYMBOL (value
);
2925 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2926 signal_error ("Invalid face weight", value
);
2928 old_value
= LFACE_WEIGHT (lface
);
2929 LFACE_WEIGHT (lface
) = value
;
2930 prop_index
= FONT_WEIGHT_INDEX
;
2932 else if (EQ (attr
, QCslant
))
2934 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2936 CHECK_SYMBOL (value
);
2937 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2938 signal_error ("Invalid face slant", value
);
2940 old_value
= LFACE_SLANT (lface
);
2941 LFACE_SLANT (lface
) = value
;
2942 prop_index
= FONT_SLANT_INDEX
;
2944 else if (EQ (attr
, QCunderline
))
2946 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2947 if ((SYMBOLP (value
)
2949 && !EQ (value
, Qnil
))
2950 /* Underline color. */
2952 && SCHARS (value
) == 0))
2953 signal_error ("Invalid face underline", value
);
2955 old_value
= LFACE_UNDERLINE (lface
);
2956 LFACE_UNDERLINE (lface
) = value
;
2958 else if (EQ (attr
, QCoverline
))
2960 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2961 if ((SYMBOLP (value
)
2963 && !EQ (value
, Qnil
))
2964 /* Overline color. */
2966 && SCHARS (value
) == 0))
2967 signal_error ("Invalid face overline", value
);
2969 old_value
= LFACE_OVERLINE (lface
);
2970 LFACE_OVERLINE (lface
) = value
;
2972 else if (EQ (attr
, QCstrike_through
))
2974 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2975 if ((SYMBOLP (value
)
2977 && !EQ (value
, Qnil
))
2978 /* Strike-through color. */
2980 && SCHARS (value
) == 0))
2981 signal_error ("Invalid face strike-through", value
);
2983 old_value
= LFACE_STRIKE_THROUGH (lface
);
2984 LFACE_STRIKE_THROUGH (lface
) = value
;
2986 else if (EQ (attr
, QCbox
))
2990 /* Allow t meaning a simple box of width 1 in foreground color
2993 value
= make_number (1);
2995 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2997 else if (NILP (value
))
2999 else if (INTEGERP (value
))
3000 valid_p
= XINT (value
) != 0;
3001 else if (STRINGP (value
))
3002 valid_p
= SCHARS (value
) > 0;
3003 else if (CONSP (value
))
3019 if (EQ (k
, QCline_width
))
3021 if (!INTEGERP (v
) || XINT (v
) == 0)
3024 else if (EQ (k
, QCcolor
))
3026 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3029 else if (EQ (k
, QCstyle
))
3031 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3038 valid_p
= NILP (tem
);
3044 signal_error ("Invalid face box", value
);
3046 old_value
= LFACE_BOX (lface
);
3047 LFACE_BOX (lface
) = value
;
3049 else if (EQ (attr
, QCinverse_video
)
3050 || EQ (attr
, QCreverse_video
))
3052 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3054 CHECK_SYMBOL (value
);
3055 if (!EQ (value
, Qt
) && !NILP (value
))
3056 signal_error ("Invalid inverse-video face attribute value", value
);
3058 old_value
= LFACE_INVERSE (lface
);
3059 LFACE_INVERSE (lface
) = value
;
3061 else if (EQ (attr
, QCforeground
))
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 foreground color value", value
);
3075 old_value
= LFACE_FOREGROUND (lface
);
3076 LFACE_FOREGROUND (lface
) = value
;
3078 else if (EQ (attr
, QCbackground
))
3080 /* Compatibility with 20.x. */
3082 value
= Qunspecified
;
3083 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3085 /* Don't check for valid color names here because it depends
3086 on the frame (display) whether the color will be valid
3087 when the face is realized. */
3088 CHECK_STRING (value
);
3089 if (SCHARS (value
) == 0)
3090 signal_error ("Empty background color value", value
);
3092 old_value
= LFACE_BACKGROUND (lface
);
3093 LFACE_BACKGROUND (lface
) = value
;
3095 else if (EQ (attr
, QCstipple
))
3097 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3098 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3100 && NILP (Fbitmap_spec_p (value
)))
3101 signal_error ("Invalid stipple attribute", value
);
3102 old_value
= LFACE_STIPPLE (lface
);
3103 LFACE_STIPPLE (lface
) = value
;
3104 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3106 else if (EQ (attr
, QCwidth
))
3108 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3110 CHECK_SYMBOL (value
);
3111 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3112 signal_error ("Invalid face width", value
);
3114 old_value
= LFACE_SWIDTH (lface
);
3115 LFACE_SWIDTH (lface
) = value
;
3116 prop_index
= FONT_WIDTH_INDEX
;
3118 else if (EQ (attr
, QCfont
))
3120 #ifdef HAVE_WINDOW_SYSTEM
3121 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3123 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3127 old_value
= LFACE_FONT (lface
);
3128 if (! FONTP (value
))
3130 if (STRINGP (value
))
3132 Lisp_Object name
= value
;
3133 int fontset
= fs_query_fontset (name
, 0);
3136 name
= fontset_ascii (fontset
);
3137 value
= font_spec_from_name (name
);
3139 signal_error ("Invalid font name", name
);
3142 signal_error ("Invalid font or font-spec", value
);
3145 f
= XFRAME (selected_frame
);
3148 if (! FONT_OBJECT_P (value
))
3150 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3151 Lisp_Object font_object
;
3153 font_object
= font_load_for_lface (f
, attrs
, value
);
3154 if (NILP (font_object
))
3155 signal_error ("Font not available", value
);
3156 value
= font_object
;
3158 set_lface_from_font (f
, lface
, value
, 1);
3161 LFACE_FONT (lface
) = value
;
3163 #endif /* HAVE_WINDOW_SYSTEM */
3165 else if (EQ (attr
, QCfontset
))
3167 #ifdef HAVE_WINDOW_SYSTEM
3168 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3172 old_value
= LFACE_FONTSET (lface
);
3173 tmp
= Fquery_fontset (value
, Qnil
);
3175 signal_error ("Invalid fontset name", value
);
3176 LFACE_FONTSET (lface
) = value
= tmp
;
3178 #endif /* HAVE_WINDOW_SYSTEM */
3180 else if (EQ (attr
, QCinherit
))
3183 if (SYMBOLP (value
))
3186 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3187 if (!SYMBOLP (XCAR (tail
)))
3190 LFACE_INHERIT (lface
) = value
;
3192 signal_error ("Invalid face inheritance", value
);
3194 else if (EQ (attr
, QCbold
))
3196 old_value
= LFACE_WEIGHT (lface
);
3197 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3198 prop_index
= FONT_WEIGHT_INDEX
;
3200 else if (EQ (attr
, QCitalic
))
3203 old_value
= LFACE_SLANT (lface
);
3204 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3205 prop_index
= FONT_SLANT_INDEX
;
3208 signal_error ("Invalid face attribute name", attr
);
3212 /* If a font-related attribute other than QCfont and QCfontset
3213 is specified, and if the original QCfont attribute has a font
3214 (font-spec or font-object), set the corresponding property in
3215 the font to nil so that the font selector doesn't think that
3216 the attribute is mandatory. Also, clear the average
3218 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3221 /* Changing a named face means that all realized faces depending on
3222 that face are invalid. Since we cannot tell which realized faces
3223 depend on the face, make sure they are all removed. This is done
3224 by incrementing face_change_count. The next call to
3225 init_iterator will then free realized faces. */
3227 && NILP (Fget (face
, Qface_no_inherit
))
3228 && NILP (Fequal (old_value
, value
)))
3230 ++face_change_count
;
3231 ++windows_or_buffers_changed
;
3234 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3235 && NILP (Fequal (old_value
, value
)))
3241 if (EQ (face
, Qdefault
))
3243 #ifdef HAVE_WINDOW_SYSTEM
3244 /* Changed font-related attributes of the `default' face are
3245 reflected in changed `font' frame parameters. */
3247 && (prop_index
|| EQ (attr
, QCfont
))
3248 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3249 set_font_frame_param (frame
, lface
);
3251 #endif /* HAVE_WINDOW_SYSTEM */
3253 if (EQ (attr
, QCforeground
))
3254 param
= Qforeground_color
;
3255 else if (EQ (attr
, QCbackground
))
3256 param
= Qbackground_color
;
3258 #ifdef HAVE_WINDOW_SYSTEM
3260 else if (EQ (face
, Qscroll_bar
))
3262 /* Changing the colors of `scroll-bar' sets frame parameters
3263 `scroll-bar-foreground' and `scroll-bar-background'. */
3264 if (EQ (attr
, QCforeground
))
3265 param
= Qscroll_bar_foreground
;
3266 else if (EQ (attr
, QCbackground
))
3267 param
= Qscroll_bar_background
;
3269 #endif /* not WINDOWSNT */
3270 else if (EQ (face
, Qborder
))
3272 /* Changing background color of `border' sets frame parameter
3274 if (EQ (attr
, QCbackground
))
3275 param
= Qborder_color
;
3277 else if (EQ (face
, Qcursor
))
3279 /* Changing background color of `cursor' sets frame parameter
3281 if (EQ (attr
, QCbackground
))
3282 param
= Qcursor_color
;
3284 else if (EQ (face
, Qmouse
))
3286 /* Changing background color of `mouse' sets frame parameter
3288 if (EQ (attr
, QCbackground
))
3289 param
= Qmouse_color
;
3291 #endif /* HAVE_WINDOW_SYSTEM */
3292 else if (EQ (face
, Qmenu
))
3294 /* Indicate that we have to update the menu bar when
3295 realizing faces on FRAME. FRAME t change the
3296 default for new frames. We do this by setting
3297 setting the flag in new face caches */
3300 struct frame
*f
= XFRAME (frame
);
3301 if (FRAME_FACE_CACHE (f
) == NULL
)
3302 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3303 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3306 menu_face_changed_default
= 1;
3312 /* Update `default-frame-alist', which is used for new frames. */
3314 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3317 /* Update the current frame's parameters. */
3320 cons
= XCAR (Vparam_value_alist
);
3321 XSETCAR (cons
, param
);
3322 XSETCDR (cons
, value
);
3323 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3332 /* Update the corresponding face when frame parameter PARAM on frame F
3333 has been assigned the value NEW_VALUE. */
3336 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
, Lisp_Object new_value
)
3338 Lisp_Object face
= Qnil
;
3341 /* If there are no faces yet, give up. This is the case when called
3342 from Fx_create_frame, and we do the necessary things later in
3343 face-set-after-frame-defaults. */
3344 if (NILP (f
->face_alist
))
3347 if (EQ (param
, Qforeground_color
))
3350 lface
= lface_from_face_name (f
, face
, 1);
3351 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3352 ? new_value
: Qunspecified
);
3353 realize_basic_faces (f
);
3355 else if (EQ (param
, Qbackground_color
))
3359 /* Changing the background color might change the background
3360 mode, so that we have to load new defface specs.
3361 Call frame-update-face-colors to do that. */
3362 XSETFRAME (frame
, f
);
3363 call1 (Qframe_set_background_mode
, frame
);
3366 lface
= lface_from_face_name (f
, face
, 1);
3367 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3368 ? new_value
: Qunspecified
);
3369 realize_basic_faces (f
);
3371 #ifdef HAVE_WINDOW_SYSTEM
3372 else if (EQ (param
, Qborder_color
))
3375 lface
= lface_from_face_name (f
, face
, 1);
3376 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3377 ? new_value
: Qunspecified
);
3379 else if (EQ (param
, Qcursor_color
))
3382 lface
= lface_from_face_name (f
, face
, 1);
3383 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3384 ? new_value
: Qunspecified
);
3386 else if (EQ (param
, Qmouse_color
))
3389 lface
= lface_from_face_name (f
, face
, 1);
3390 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3391 ? new_value
: Qunspecified
);
3395 /* Changing a named face means that all realized faces depending on
3396 that face are invalid. Since we cannot tell which realized faces
3397 depend on the face, make sure they are all removed. This is done
3398 by incrementing face_change_count. The next call to
3399 init_iterator will then free realized faces. */
3401 && NILP (Fget (face
, Qface_no_inherit
)))
3403 ++face_change_count
;
3404 ++windows_or_buffers_changed
;
3409 #ifdef HAVE_WINDOW_SYSTEM
3411 /* Set the `font' frame parameter of FRAME determined from the
3412 font-object set in `default' face attributes LFACE. */
3415 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3417 struct frame
*f
= XFRAME (frame
);
3420 if (FRAME_WINDOW_P (f
)
3421 /* Don't do anything if the font is `unspecified'. This can
3422 happen during frame creation. */
3423 && (font
= LFACE_FONT (lface
),
3424 ! UNSPECIFIEDP (font
)))
3426 if (FONT_SPEC_P (font
))
3428 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3431 LFACE_FONT (lface
) = font
;
3433 f
->default_face_done_p
= 0;
3434 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3439 /* Get the value of X resource RESOURCE, class CLASS for the display
3440 of frame FRAME. This is here because ordinary `x-get-resource'
3441 doesn't take a frame argument. */
3443 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3444 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3445 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3447 Lisp_Object value
= Qnil
;
3448 CHECK_STRING (resource
);
3449 CHECK_STRING (class);
3450 CHECK_LIVE_FRAME (frame
);
3452 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3453 resource
, class, Qnil
, Qnil
);
3459 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3460 If VALUE is "on" or "true", return t. If VALUE is "off" or
3461 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3462 error; if SIGNAL_P is zero, return 0. */
3465 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3467 Lisp_Object result
= make_number (0);
3469 xassert (STRINGP (value
));
3471 if (xstrcasecmp (SSDATA (value
), "on") == 0
3472 || xstrcasecmp (SSDATA (value
), "true") == 0)
3474 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3475 || xstrcasecmp (SSDATA (value
), "false") == 0)
3477 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3478 result
= Qunspecified
;
3480 signal_error ("Invalid face attribute value from X resource", value
);
3486 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3487 Finternal_set_lisp_face_attribute_from_resource
,
3488 Sinternal_set_lisp_face_attribute_from_resource
,
3489 3, 4, 0, doc
: /* */)
3490 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3492 CHECK_SYMBOL (face
);
3493 CHECK_SYMBOL (attr
);
3494 CHECK_STRING (value
);
3496 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3497 value
= Qunspecified
;
3498 else if (EQ (attr
, QCheight
))
3500 value
= Fstring_to_number (value
, make_number (10));
3501 if (XINT (value
) <= 0)
3502 signal_error ("Invalid face height from X resource", value
);
3504 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3505 value
= face_boolean_x_resource_value (value
, 1);
3506 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3507 value
= intern (SSDATA (value
));
3508 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3509 value
= face_boolean_x_resource_value (value
, 1);
3510 else if (EQ (attr
, QCunderline
)
3511 || EQ (attr
, QCoverline
)
3512 || EQ (attr
, QCstrike_through
))
3514 Lisp_Object boolean_value
;
3516 /* If the result of face_boolean_x_resource_value is t or nil,
3517 VALUE does NOT specify a color. */
3518 boolean_value
= face_boolean_x_resource_value (value
, 0);
3519 if (SYMBOLP (boolean_value
))
3520 value
= boolean_value
;
3522 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3523 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3525 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3528 #endif /* HAVE_WINDOW_SYSTEM */
3531 /***********************************************************************
3533 ***********************************************************************/
3535 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3537 /* Make menus on frame F appear as specified by the `menu' face. */
3540 x_update_menu_appearance (struct frame
*f
)
3542 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3546 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3550 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3551 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3552 const char *myname
= SSDATA (Vx_resource_name
);
3555 const char *popup_path
= "popup_menu";
3557 const char *popup_path
= "menu.popup";
3560 if (STRINGP (LFACE_FOREGROUND (lface
)))
3562 sprintf (line
, "%s.%s*foreground: %s",
3564 SDATA (LFACE_FOREGROUND (lface
)));
3565 XrmPutLineResource (&rdb
, line
);
3566 sprintf (line
, "%s.pane.menubar*foreground: %s",
3567 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3568 XrmPutLineResource (&rdb
, line
);
3572 if (STRINGP (LFACE_BACKGROUND (lface
)))
3574 sprintf (line
, "%s.%s*background: %s",
3576 SDATA (LFACE_BACKGROUND (lface
)));
3577 XrmPutLineResource (&rdb
, line
);
3578 sprintf (line
, "%s.pane.menubar*background: %s",
3579 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3580 XrmPutLineResource (&rdb
, line
);
3585 /* On Solaris 5.8, it's been reported that the `menu' face
3586 can be unspecified here, during startup. Why this
3587 happens remains unknown. -- cyd */
3588 && FONTP (LFACE_FONT (lface
))
3589 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3590 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3591 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3592 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3593 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3594 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3596 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3598 const char *suffix
= "List";
3601 #if defined HAVE_X_I18N
3603 const char *suffix
= "Set";
3605 const char *suffix
= "";
3612 #if defined HAVE_X_I18N
3613 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3615 char *fontsetname
= SSDATA (xlfd
);
3617 sprintf (line
, "%s.pane.menubar*font%s: %s",
3618 myname
, suffix
, fontsetname
);
3619 XrmPutLineResource (&rdb
, line
);
3620 sprintf (line
, "%s.%s*font%s: %s",
3621 myname
, popup_path
, suffix
, fontsetname
);
3622 XrmPutLineResource (&rdb
, line
);
3624 if (fontsetname
!= SSDATA (xlfd
))
3625 xfree (fontsetname
);
3629 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3630 free_frame_menubar (f
);
3634 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3637 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3638 Sface_attribute_relative_p
,
3640 doc
: /* Check whether a face attribute value is relative.
3641 Specifically, this function returns t if the attribute ATTRIBUTE
3642 with the value VALUE is relative.
3644 A relative value is one that doesn't entirely override whatever is
3645 inherited from another face. For most possible attributes,
3646 the only relative value that users see is `unspecified'.
3647 However, for :height, floating point values are also relative. */)
3648 (Lisp_Object attribute
, Lisp_Object value
)
3650 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3652 else if (EQ (attribute
, QCheight
))
3653 return INTEGERP (value
) ? Qnil
: Qt
;
3658 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3660 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3661 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3662 the result will be absolute, otherwise it will be relative. */)
3663 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3665 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3667 else if (EQ (attribute
, QCheight
))
3668 return merge_face_heights (value1
, value2
, value1
);
3674 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3675 Sinternal_get_lisp_face_attribute
,
3677 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3678 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3679 face attribute name, signal an error.
3680 If the optional argument FRAME is given, report on face SYMBOL in that
3681 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3682 frames). If FRAME is omitted or nil, use the selected frame. */)
3683 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3685 Lisp_Object lface
, value
= Qnil
;
3687 CHECK_SYMBOL (symbol
);
3688 CHECK_SYMBOL (keyword
);
3691 lface
= lface_from_face_name (NULL
, symbol
, 1);
3695 frame
= selected_frame
;
3696 CHECK_LIVE_FRAME (frame
);
3697 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3700 if (EQ (keyword
, QCfamily
))
3701 value
= LFACE_FAMILY (lface
);
3702 else if (EQ (keyword
, QCfoundry
))
3703 value
= LFACE_FOUNDRY (lface
);
3704 else if (EQ (keyword
, QCheight
))
3705 value
= LFACE_HEIGHT (lface
);
3706 else if (EQ (keyword
, QCweight
))
3707 value
= LFACE_WEIGHT (lface
);
3708 else if (EQ (keyword
, QCslant
))
3709 value
= LFACE_SLANT (lface
);
3710 else if (EQ (keyword
, QCunderline
))
3711 value
= LFACE_UNDERLINE (lface
);
3712 else if (EQ (keyword
, QCoverline
))
3713 value
= LFACE_OVERLINE (lface
);
3714 else if (EQ (keyword
, QCstrike_through
))
3715 value
= LFACE_STRIKE_THROUGH (lface
);
3716 else if (EQ (keyword
, QCbox
))
3717 value
= LFACE_BOX (lface
);
3718 else if (EQ (keyword
, QCinverse_video
)
3719 || EQ (keyword
, QCreverse_video
))
3720 value
= LFACE_INVERSE (lface
);
3721 else if (EQ (keyword
, QCforeground
))
3722 value
= LFACE_FOREGROUND (lface
);
3723 else if (EQ (keyword
, QCbackground
))
3724 value
= LFACE_BACKGROUND (lface
);
3725 else if (EQ (keyword
, QCstipple
))
3726 value
= LFACE_STIPPLE (lface
);
3727 else if (EQ (keyword
, QCwidth
))
3728 value
= LFACE_SWIDTH (lface
);
3729 else if (EQ (keyword
, QCinherit
))
3730 value
= LFACE_INHERIT (lface
);
3731 else if (EQ (keyword
, QCfont
))
3732 value
= LFACE_FONT (lface
);
3733 else if (EQ (keyword
, QCfontset
))
3734 value
= LFACE_FONTSET (lface
);
3736 signal_error ("Invalid face attribute name", keyword
);
3738 if (IGNORE_DEFFACE_P (value
))
3739 return Qunspecified
;
3745 DEFUN ("internal-lisp-face-attribute-values",
3746 Finternal_lisp_face_attribute_values
,
3747 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3748 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3749 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3752 Lisp_Object result
= Qnil
;
3754 CHECK_SYMBOL (attr
);
3756 if (EQ (attr
, QCunderline
))
3757 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3758 else if (EQ (attr
, QCoverline
))
3759 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3760 else if (EQ (attr
, QCstrike_through
))
3761 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3762 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3763 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3769 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3770 Sinternal_merge_in_global_face
, 2, 2, 0,
3771 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3772 Default face attributes override any local face attributes. */)
3773 (Lisp_Object face
, Lisp_Object frame
)
3776 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3777 struct frame
*f
= XFRAME (frame
);
3779 CHECK_LIVE_FRAME (frame
);
3780 global_lface
= lface_from_face_name (NULL
, face
, 1);
3781 local_lface
= lface_from_face_name (f
, face
, 0);
3782 if (NILP (local_lface
))
3783 local_lface
= Finternal_make_lisp_face (face
, frame
);
3785 /* Make every specified global attribute override the local one.
3786 BEWARE!! This is only used from `face-set-after-frame-default' where
3787 the local frame is defined from default specs in `face-defface-spec'
3788 and those should be overridden by global settings. Hence the strange
3789 "global before local" priority. */
3790 lvec
= XVECTOR (local_lface
)->contents
;
3791 gvec
= XVECTOR (global_lface
)->contents
;
3792 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3793 if (IGNORE_DEFFACE_P (gvec
[i
]))
3794 lvec
[i
] = Qunspecified
;
3795 else if (! UNSPECIFIEDP (gvec
[i
]))
3798 /* If the default face was changed, update the face cache and the
3799 `font' frame parameter. */
3800 if (EQ (face
, Qdefault
))
3802 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3803 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3804 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3806 /* This can be NULL (e.g., in batch mode). */
3809 /* Ensure that the face vector is fully specified by merging
3810 the previously-cached vector. */
3811 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3812 merge_face_vectors (f
, lvec
, attrs
, 0);
3813 memcpy (lvec
, attrs
, sizeof attrs
);
3814 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3816 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3817 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3818 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3819 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3820 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3821 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3822 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3825 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3826 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3836 /* The following function is implemented for compatibility with 20.2.
3837 The function is used in x-resolve-fonts when it is asked to
3838 return fonts with the same size as the font of a face. This is
3839 done in fontset.el. */
3841 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3842 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3843 The font name is, by default, for ASCII characters.
3844 If the optional argument FRAME is given, report on face FACE in that frame.
3845 If FRAME is t, report on the defaults for face FACE (for new frames).
3846 The font default for a face is either nil, or a list
3847 of the form (bold), (italic) or (bold italic).
3848 If FRAME is omitted or nil, use the selected frame. And, in this case,
3849 if the optional third argument CHARACTER is given,
3850 return the font name used for CHARACTER. */)
3851 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3855 Lisp_Object result
= Qnil
;
3856 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3858 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3859 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3860 result
= Fcons (Qbold
, result
);
3862 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3863 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3864 result
= Fcons (Qitalic
, result
);
3870 struct frame
*f
= frame_or_selected_frame (frame
, 1);
3871 int face_id
= lookup_named_face (f
, face
, 1);
3872 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3876 #ifdef HAVE_WINDOW_SYSTEM
3877 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3879 CHECK_CHARACTER (character
);
3880 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3881 fface
= FACE_FROM_ID (f
, face_id
);
3884 ? fface
->font
->props
[FONT_NAME_INDEX
]
3886 #else /* !HAVE_WINDOW_SYSTEM */
3887 return build_string (FRAME_MSDOS_P (f
)
3889 : FRAME_W32_P (f
) ? "w32term"
3896 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3897 all attributes are `equal'. Tries to be fast because this function
3898 is called quite often. */
3901 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3903 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3904 and the other is specified. */
3905 if (XTYPE (v1
) != XTYPE (v2
))
3914 if (SBYTES (v1
) != SBYTES (v2
))
3917 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3924 return !NILP (Fequal (v1
, v2
));
3929 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3930 all attributes are `equal'. Tries to be fast because this function
3931 is called quite often. */
3934 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3938 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3939 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3945 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3946 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3947 doc
: /* True if FACE1 and FACE2 are equal.
3948 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3949 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3950 If FRAME is omitted or nil, use the selected frame. */)
3951 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3955 Lisp_Object lface1
, lface2
;
3960 /* Don't use check_x_frame here because this function is called
3961 before X frames exist. At that time, if FRAME is nil,
3962 selected_frame will be used which is the frame dumped with
3963 Emacs. That frame is not an X frame. */
3964 f
= frame_or_selected_frame (frame
, 2);
3966 lface1
= lface_from_face_name (f
, face1
, 1);
3967 lface2
= lface_from_face_name (f
, face2
, 1);
3968 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3969 XVECTOR (lface2
)->contents
);
3970 return equal_p
? Qt
: Qnil
;
3974 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3975 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3976 doc
: /* True if FACE has no attribute specified.
3977 If the optional argument FRAME is given, report on face FACE in that frame.
3978 If FRAME is t, report on the defaults for face FACE (for new frames).
3979 If FRAME is omitted or nil, use the selected frame. */)
3980 (Lisp_Object face
, Lisp_Object frame
)
3987 frame
= selected_frame
;
3988 CHECK_LIVE_FRAME (frame
);
3992 lface
= lface_from_face_name (NULL
, face
, 1);
3994 lface
= lface_from_face_name (f
, face
, 1);
3996 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3997 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4000 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4004 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4006 doc
: /* Return an alist of frame-local faces defined on FRAME.
4007 For internal use only. */)
4010 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4011 return f
->face_alist
;
4015 /* Return a hash code for Lisp string STRING with case ignored. Used
4016 below in computing a hash value for a Lisp face. */
4018 static INLINE
unsigned
4019 hash_string_case_insensitive (Lisp_Object string
)
4021 const unsigned char *s
;
4023 xassert (STRINGP (string
));
4024 for (s
= SDATA (string
); *s
; ++s
)
4025 hash
= (hash
<< 1) ^ tolower (*s
);
4030 /* Return a hash code for face attribute vector V. */
4032 static INLINE
unsigned
4033 lface_hash (Lisp_Object
*v
)
4035 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4036 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4037 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4038 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4039 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4040 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4041 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4042 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4046 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4047 considering charsets/registries). They do if they specify the same
4048 family, point size, weight, width, slant, and font. Both
4049 LFACE1 and LFACE2 must be fully-specified. */
4052 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4054 xassert (lface_fully_specified_p (lface1
)
4055 && lface_fully_specified_p (lface2
));
4056 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4057 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4058 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4059 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4060 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4061 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4062 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4063 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4064 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4065 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4066 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4067 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4068 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4069 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4075 /***********************************************************************
4077 ***********************************************************************/
4079 /* Allocate and return a new realized face for Lisp face attribute
4082 static struct face
*
4083 make_realized_face (Lisp_Object
*attr
)
4085 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4086 memset (face
, 0, sizeof *face
);
4087 face
->ascii_face
= face
;
4088 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4093 /* Free realized face FACE, including its X resources. FACE may
4097 free_realized_face (struct frame
*f
, struct face
*face
)
4101 #ifdef HAVE_WINDOW_SYSTEM
4102 if (FRAME_WINDOW_P (f
))
4104 /* Free fontset of FACE if it is ASCII face. */
4105 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4106 free_face_fontset (f
, face
);
4111 font_done_for_face (f
, face
);
4112 x_free_gc (f
, face
->gc
);
4117 free_face_colors (f
, face
);
4118 x_destroy_bitmap (f
, face
->stipple
);
4120 #endif /* HAVE_WINDOW_SYSTEM */
4127 /* Prepare face FACE for subsequent display on frame F. This
4128 allocated GCs if they haven't been allocated yet or have been freed
4129 by clearing the face cache. */
4132 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4134 #ifdef HAVE_WINDOW_SYSTEM
4135 xassert (FRAME_WINDOW_P (f
));
4140 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4142 xgcv
.foreground
= face
->foreground
;
4143 xgcv
.background
= face
->background
;
4144 #ifdef HAVE_X_WINDOWS
4145 xgcv
.graphics_exposures
= False
;
4149 #ifdef HAVE_X_WINDOWS
4152 xgcv
.fill_style
= FillOpaqueStippled
;
4153 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4154 mask
|= GCFillStyle
| GCStipple
;
4157 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4159 font_prepare_for_face (f
, face
);
4162 #endif /* HAVE_WINDOW_SYSTEM */
4166 /* Returns the `distance' between the colors X and Y. */
4169 color_distance (XColor
*x
, XColor
*y
)
4171 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4172 Quoting from that paper:
4174 This formula has results that are very close to L*u*v* (with the
4175 modified lightness curve) and, more importantly, it is a more even
4176 algorithm: it does not have a range of colours where it suddenly
4177 gives far from optimal results.
4179 See <http://www.compuphase.com/cmetric.htm> for more info. */
4181 long r
= (x
->red
- y
->red
) >> 8;
4182 long g
= (x
->green
- y
->green
) >> 8;
4183 long b
= (x
->blue
- y
->blue
) >> 8;
4184 long r_mean
= (x
->red
+ y
->red
) >> 9;
4187 (((512 + r_mean
) * r
* r
) >> 8)
4189 + (((767 - r_mean
) * b
* b
) >> 8);
4193 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4194 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4195 COLOR1 and COLOR2 may be either strings containing the color name,
4196 or lists of the form (RED GREEN BLUE).
4197 If FRAME is unspecified or nil, the current frame is used. */)
4198 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4201 XColor cdef1
, cdef2
;
4204 frame
= selected_frame
;
4205 CHECK_LIVE_FRAME (frame
);
4208 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4209 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4210 signal_error ("Invalid color", color1
);
4211 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4212 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4213 signal_error ("Invalid color", color2
);
4215 return make_number (color_distance (&cdef1
, &cdef2
));
4219 /***********************************************************************
4221 ***********************************************************************/
4223 /* Return a new face cache for frame F. */
4225 static struct face_cache
*
4226 make_face_cache (struct frame
*f
)
4228 struct face_cache
*c
;
4231 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4232 memset (c
, 0, sizeof *c
);
4233 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4234 c
->buckets
= (struct face
**) xmalloc (size
);
4235 memset (c
->buckets
, 0, size
);
4237 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4239 c
->menu_face_changed_p
= menu_face_changed_default
;
4244 /* Clear out all graphics contexts for all realized faces, except for
4245 the basic faces. This should be done from time to time just to avoid
4246 keeping too many graphics contexts that are no longer needed. */
4249 clear_face_gcs (struct face_cache
*c
)
4251 if (c
&& FRAME_WINDOW_P (c
->f
))
4253 #ifdef HAVE_WINDOW_SYSTEM
4255 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4257 struct face
*face
= c
->faces_by_id
[i
];
4258 if (face
&& face
->gc
)
4262 font_done_for_face (c
->f
, face
);
4263 x_free_gc (c
->f
, face
->gc
);
4268 #endif /* HAVE_WINDOW_SYSTEM */
4273 /* Free all realized faces in face cache C, including basic faces.
4274 C may be null. If faces are freed, make sure the frame's current
4275 matrix is marked invalid, so that a display caused by an expose
4276 event doesn't try to use faces we destroyed. */
4279 free_realized_faces (struct face_cache
*c
)
4284 struct frame
*f
= c
->f
;
4286 /* We must block input here because we can't process X events
4287 safely while only some faces are freed, or when the frame's
4288 current matrix still references freed faces. */
4291 for (i
= 0; i
< c
->used
; ++i
)
4293 free_realized_face (f
, c
->faces_by_id
[i
]);
4294 c
->faces_by_id
[i
] = NULL
;
4298 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4299 memset (c
->buckets
, 0, size
);
4301 /* Must do a thorough redisplay the next time. Mark current
4302 matrices as invalid because they will reference faces freed
4303 above. This function is also called when a frame is
4304 destroyed. In this case, the root window of F is nil. */
4305 if (WINDOWP (f
->root_window
))
4307 clear_current_matrices (f
);
4308 ++windows_or_buffers_changed
;
4316 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4317 This is done after attributes of a named face have been changed,
4318 because we can't tell which realized faces depend on that face. */
4321 free_all_realized_faces (Lisp_Object frame
)
4326 FOR_EACH_FRAME (rest
, frame
)
4327 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4330 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4334 /* Free face cache C and faces in it, including their X resources. */
4337 free_face_cache (struct face_cache
*c
)
4341 free_realized_faces (c
);
4343 xfree (c
->faces_by_id
);
4349 /* Cache realized face FACE in face cache C. HASH is the hash value
4350 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4351 FACE), insert the new face to the beginning of the collision list
4352 of the face hash table of C. Otherwise, add the new face to the
4353 end of the collision list. This way, lookup_face can quickly find
4354 that a requested face is not cached. */
4357 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4359 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4363 if (face
->ascii_face
!= face
)
4365 struct face
*last
= c
->buckets
[i
];
4376 c
->buckets
[i
] = face
;
4377 face
->prev
= face
->next
= NULL
;
4383 face
->next
= c
->buckets
[i
];
4385 face
->next
->prev
= face
;
4386 c
->buckets
[i
] = face
;
4389 /* Find a free slot in C->faces_by_id and use the index of the free
4390 slot as FACE->id. */
4391 for (i
= 0; i
< c
->used
; ++i
)
4392 if (c
->faces_by_id
[i
] == NULL
)
4396 /* Maybe enlarge C->faces_by_id. */
4399 if (c
->used
== c
->size
)
4402 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4403 if (new_size
== c
->size
)
4404 abort (); /* Alternatives? ++kfs */
4405 sz
= new_size
* sizeof *c
->faces_by_id
;
4406 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4413 /* Check that FACE got a unique id. */
4418 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4419 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4425 #endif /* GLYPH_DEBUG */
4427 c
->faces_by_id
[i
] = face
;
4431 /* Remove face FACE from cache C. */
4434 uncache_face (struct face_cache
*c
, struct face
*face
)
4436 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4439 face
->prev
->next
= face
->next
;
4441 c
->buckets
[i
] = face
->next
;
4444 face
->next
->prev
= face
->prev
;
4446 c
->faces_by_id
[face
->id
] = NULL
;
4447 if (face
->id
== c
->used
)
4452 /* Look up a realized face with face attributes ATTR in the face cache
4453 of frame F. The face will be used to display ASCII characters.
4454 Value is the ID of the face found. If no suitable face is found,
4455 realize a new one. */
4458 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4460 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4465 xassert (cache
!= NULL
);
4466 check_lface_attrs (attr
);
4468 /* Look up ATTR in the face cache. */
4469 hash
= lface_hash (attr
);
4470 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4472 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4474 if (face
->ascii_face
!= face
)
4476 /* There's no more ASCII face. */
4480 if (face
->hash
== hash
4481 && lface_equal_p (face
->lface
, attr
))
4485 /* If not found, realize a new face. */
4487 face
= realize_face (cache
, attr
, -1);
4490 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4491 #endif /* GLYPH_DEBUG */
4496 #ifdef HAVE_WINDOW_SYSTEM
4497 /* Look up a realized face that has the same attributes as BASE_FACE
4498 except for the font in the face cache of frame F. If FONT-OBJECT
4499 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4500 the face has no font. Value is the ID of the face found. If no
4501 suitable face is found, realize a new one. */
4504 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4506 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4511 xassert (cache
!= NULL
);
4512 base_face
= base_face
->ascii_face
;
4513 hash
= lface_hash (base_face
->lface
);
4514 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4516 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4518 if (face
->ascii_face
== face
)
4520 if (face
->ascii_face
== base_face
4521 && face
->font
== (NILP (font_object
) ? NULL
4522 : XFONT_OBJECT (font_object
))
4523 && lface_equal_p (face
->lface
, base_face
->lface
))
4527 /* If not found, realize a new face. */
4528 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4531 #endif /* HAVE_WINDOW_SYSTEM */
4533 /* Return the face id of the realized face for named face SYMBOL on
4534 frame F suitable for displaying ASCII characters. Value is -1 if
4535 the face couldn't be determined, which might happen if the default
4536 face isn't realized and cannot be realized. */
4539 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4541 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4542 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4543 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4545 if (default_face
== NULL
)
4547 if (!realize_basic_faces (f
))
4549 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4550 if (default_face
== NULL
)
4551 abort (); /* realize_basic_faces must have set it up */
4554 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4557 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4558 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4560 return lookup_face (f
, attrs
);
4564 /* Return the display face-id of the basic face who's canonical face-id
4565 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4566 basic face has bee remapped via Vface_remapping_alist. This function is
4567 conservative: if something goes wrong, it will simply return FACE_ID
4568 rather than signal an error. */
4571 lookup_basic_face (struct frame
*f
, int face_id
)
4573 Lisp_Object name
, mapping
;
4574 int remapped_face_id
;
4576 if (NILP (Vface_remapping_alist
))
4577 return face_id
; /* Nothing to do. */
4581 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4582 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4583 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4584 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4585 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4586 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4587 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4588 case BORDER_FACE_ID
: name
= Qborder
; break;
4589 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4590 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4591 case MENU_FACE_ID
: name
= Qmenu
; break;
4594 abort (); /* the caller is supposed to pass us a basic face id */
4597 /* Do a quick scan through Vface_remapping_alist, and return immediately
4598 if there is no remapping for face NAME. This is just an optimization
4599 for the very common no-remapping case. */
4600 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4602 return face_id
; /* Give up. */
4604 /* If there is a remapping entry, lookup the face using NAME, which will
4605 handle the remapping too. */
4606 remapped_face_id
= lookup_named_face (f
, name
, 0);
4607 if (remapped_face_id
< 0)
4608 return face_id
; /* Give up. */
4610 return remapped_face_id
;
4614 /* Return a face for charset ASCII that is like the face with id
4615 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4616 STEPS < 0 means larger. Value is the id of the face. */
4619 smaller_face (struct frame
*f
, int face_id
, int steps
)
4621 #ifdef HAVE_WINDOW_SYSTEM
4623 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4624 int pt
, last_pt
, last_height
;
4627 struct face
*new_face
;
4629 /* If not called for an X frame, just return the original face. */
4630 if (FRAME_TERMCAP_P (f
))
4633 /* Try in increments of 1/2 pt. */
4634 delta
= steps
< 0 ? 5 : -5;
4635 steps
= eabs (steps
);
4637 face
= FACE_FROM_ID (f
, face_id
);
4638 memcpy (attrs
, face
->lface
, sizeof attrs
);
4639 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4640 new_face_id
= face_id
;
4641 last_height
= FONT_HEIGHT (face
->font
);
4645 /* Give up if we cannot find a font within 10pt. */
4646 && eabs (last_pt
- pt
) < 100)
4648 /* Look up a face for a slightly smaller/larger font. */
4650 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4651 new_face_id
= lookup_face (f
, attrs
);
4652 new_face
= FACE_FROM_ID (f
, new_face_id
);
4654 /* If height changes, count that as one step. */
4655 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4656 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4659 last_height
= FONT_HEIGHT (new_face
->font
);
4666 #else /* not HAVE_WINDOW_SYSTEM */
4670 #endif /* not HAVE_WINDOW_SYSTEM */
4674 /* Return a face for charset ASCII that is like the face with id
4675 FACE_ID on frame F, but has height HEIGHT. */
4678 face_with_height (struct frame
*f
, int face_id
, int height
)
4680 #ifdef HAVE_WINDOW_SYSTEM
4682 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4684 if (FRAME_TERMCAP_P (f
)
4688 face
= FACE_FROM_ID (f
, face_id
);
4689 memcpy (attrs
, face
->lface
, sizeof attrs
);
4690 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4691 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4692 face_id
= lookup_face (f
, attrs
);
4693 #endif /* HAVE_WINDOW_SYSTEM */
4699 /* Return the face id of the realized face for named face SYMBOL on
4700 frame F suitable for displaying ASCII characters, and use
4701 attributes of the face FACE_ID for attributes that aren't
4702 completely specified by SYMBOL. This is like lookup_named_face,
4703 except that the default attributes come from FACE_ID, not from the
4704 default face. FACE_ID is assumed to be already realized. */
4707 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
, int signal_p
)
4709 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4710 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4711 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4716 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4719 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4720 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4721 return lookup_face (f
, attrs
);
4724 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4725 Sface_attributes_as_vector
, 1, 1, 0,
4726 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4730 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4732 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4739 /***********************************************************************
4740 Face capability testing
4741 ***********************************************************************/
4744 /* If the distance (as returned by color_distance) between two colors is
4745 less than this, then they are considered the same, for determining
4746 whether a color is supported or not. The range of values is 0-65535. */
4748 #define TTY_SAME_COLOR_THRESHOLD 10000
4750 #ifdef HAVE_WINDOW_SYSTEM
4752 /* Return non-zero if all the face attributes in ATTRS are supported
4753 on the window-system frame F.
4755 The definition of `supported' is somewhat heuristic, but basically means
4756 that a face containing all the attributes in ATTRS, when merged with the
4757 default face for display, can be represented in a way that's
4759 \(1) different in appearance than the default face, and
4760 \(2) `close in spirit' to what the attributes specify, if not exact. */
4763 x_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4765 Lisp_Object
*def_attrs
= def_face
->lface
;
4767 /* Check that other specified attributes are different that the default
4769 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4770 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4771 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4772 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4773 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4774 def_attrs
[LFACE_INVERSE_INDEX
]))
4775 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4776 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4777 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4778 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4779 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4780 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4781 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4782 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4783 def_attrs
[LFACE_STIPPLE_INDEX
]))
4784 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4785 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4786 def_attrs
[LFACE_OVERLINE_INDEX
]))
4787 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4788 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4789 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4790 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4791 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4792 def_attrs
[LFACE_BOX_INDEX
])))
4795 /* Check font-related attributes, as those are the most commonly
4796 "unsupported" on a window-system (because of missing fonts). */
4797 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4798 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4799 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4800 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4801 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4802 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4806 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4809 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4811 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4813 face_id
= lookup_face (f
, merged_attrs
);
4814 face
= FACE_FROM_ID (f
, face_id
);
4817 error ("Cannot make face");
4819 /* If the font is the same, or no font is found, then not
4821 if (face
->font
== def_face
->font
4824 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4825 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4829 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4830 || face
->font
->driver
->case_sensitive
)
4832 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4833 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4834 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4835 s2
, make_number (0), Qnil
, Qt
), Qt
))
4841 /* Everything checks out, this face is supported. */
4845 #endif /* HAVE_WINDOW_SYSTEM */
4847 /* Return non-zero if all the face attributes in ATTRS are supported
4850 The definition of `supported' is somewhat heuristic, but basically means
4851 that a face containing all the attributes in ATTRS, when merged
4852 with the default face for display, can be represented in a way that's
4854 \(1) different in appearance than the default face, and
4855 \(2) `close in spirit' to what the attributes specify, if not exact.
4857 Point (2) implies that a `:weight black' attribute will be satisfied
4858 by any terminal that can display bold, and a `:foreground "yellow"' as
4859 long as the terminal can display a yellowish color, but `:slant italic'
4860 will _not_ be satisfied by the tty display code's automatic
4861 substitution of a `dim' face for italic. */
4864 tty_supports_face_attributes_p (struct frame
*f
, Lisp_Object
*attrs
, struct face
*def_face
)
4867 Lisp_Object val
, fg
, bg
;
4868 XColor fg_tty_color
, fg_std_color
;
4869 XColor bg_tty_color
, bg_std_color
;
4870 unsigned test_caps
= 0;
4871 Lisp_Object
*def_attrs
= def_face
->lface
;
4874 /* First check some easy-to-check stuff; ttys support none of the
4875 following attributes, so we can just return false if any are requested
4876 (even if `nominal' values are specified, we should still return false,
4877 as that will be the same value that the default face uses). We
4878 consider :slant unsupportable on ttys, even though the face code
4879 actually `fakes' them using a dim attribute if possible. This is
4880 because the faked result is too different from what the face
4882 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4883 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4884 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4885 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4886 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4887 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4888 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4889 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4890 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
4894 /* Test for terminal `capabilities' (non-color character attributes). */
4896 /* font weight (bold/dim) */
4897 val
= attrs
[LFACE_WEIGHT_INDEX
];
4898 if (!UNSPECIFIEDP (val
)
4899 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4901 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4905 if (def_weight
> 100)
4906 return 0; /* same as default */
4907 test_caps
= TTY_CAP_BOLD
;
4909 else if (weight
< 100)
4911 if (def_weight
< 100)
4912 return 0; /* same as default */
4913 test_caps
= TTY_CAP_DIM
;
4915 else if (def_weight
== 100)
4916 return 0; /* same as default */
4920 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4921 if (!UNSPECIFIEDP (val
))
4924 return 0; /* ttys can't use colored underlines */
4925 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4926 return 0; /* same as default */
4928 test_caps
|= TTY_CAP_UNDERLINE
;
4932 val
= attrs
[LFACE_INVERSE_INDEX
];
4933 if (!UNSPECIFIEDP (val
))
4935 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4936 return 0; /* same as default */
4938 test_caps
|= TTY_CAP_INVERSE
;
4942 /* Color testing. */
4944 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4945 we use them when calling `tty_capable_p' below, even if the face
4946 specifies no colors. */
4947 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4948 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4950 /* Check if foreground color is close enough. */
4951 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4954 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4956 if (face_attr_equal_p (fg
, def_fg
))
4957 return 0; /* same as default */
4958 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4959 return 0; /* not a valid color */
4960 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4961 > TTY_SAME_COLOR_THRESHOLD
)
4962 return 0; /* displayed color is too different */
4964 /* Make sure the color is really different than the default. */
4966 XColor def_fg_color
;
4967 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4968 && (color_distance (&fg_tty_color
, &def_fg_color
)
4969 <= TTY_SAME_COLOR_THRESHOLD
))
4974 /* Check if background color is close enough. */
4975 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4978 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4980 if (face_attr_equal_p (bg
, def_bg
))
4981 return 0; /* same as default */
4982 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4983 return 0; /* not a valid color */
4984 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4985 > TTY_SAME_COLOR_THRESHOLD
)
4986 return 0; /* displayed color is too different */
4988 /* Make sure the color is really different than the default. */
4990 XColor def_bg_color
;
4991 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4992 && (color_distance (&bg_tty_color
, &def_bg_color
)
4993 <= TTY_SAME_COLOR_THRESHOLD
))
4998 /* If both foreground and background are requested, see if the
4999 distance between them is OK. We just check to see if the distance
5000 between the tty's foreground and background is close enough to the
5001 distance between the standard foreground and background. */
5002 if (STRINGP (fg
) && STRINGP (bg
))
5005 = (color_distance (&fg_std_color
, &bg_std_color
)
5006 - color_distance (&fg_tty_color
, &bg_tty_color
));
5007 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5008 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5013 /* See if the capabilities we selected above are supported, with the
5015 if (test_caps
!= 0 &&
5016 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5020 /* Hmmm, everything checks out, this terminal must support this face. */
5025 DEFUN ("display-supports-face-attributes-p",
5026 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5028 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5029 The optional argument DISPLAY can be a display name, a frame, or
5030 nil (meaning the selected frame's display).
5032 The definition of `supported' is somewhat heuristic, but basically means
5033 that a face containing all the attributes in ATTRIBUTES, when merged
5034 with the default face for display, can be represented in a way that's
5036 \(1) different in appearance than the default face, and
5037 \(2) `close in spirit' to what the attributes specify, if not exact.
5039 Point (2) implies that a `:weight black' attribute will be satisfied by
5040 any display that can display bold, and a `:foreground \"yellow\"' as long
5041 as it can display a yellowish color, but `:slant italic' will _not_ be
5042 satisfied by the tty display code's automatic substitution of a `dim'
5043 face for italic. */)
5044 (Lisp_Object attributes
, Lisp_Object display
)
5046 int supports
= 0, i
;
5049 struct face
*def_face
;
5050 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5052 if (noninteractive
|| !initialized
)
5053 /* We may not be able to access low-level face information in batch
5054 mode, or before being dumped, and this function is not going to
5055 be very useful in those cases anyway, so just give up. */
5059 frame
= selected_frame
;
5060 else if (FRAMEP (display
))
5064 /* Find any frame on DISPLAY. */
5065 Lisp_Object fl_tail
;
5068 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5070 frame
= XCAR (fl_tail
);
5071 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5072 XFRAME (frame
)->param_alist
)),
5078 CHECK_LIVE_FRAME (frame
);
5081 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5082 attrs
[i
] = Qunspecified
;
5083 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5085 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5086 if (def_face
== NULL
)
5088 if (! realize_basic_faces (f
))
5089 error ("Cannot realize default face");
5090 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5091 if (def_face
== NULL
)
5092 abort (); /* realize_basic_faces must have set it up */
5095 /* Dispatch to the appropriate handler. */
5096 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5097 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5098 #ifdef HAVE_WINDOW_SYSTEM
5100 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5103 return supports
? Qt
: Qnil
;
5107 /***********************************************************************
5109 ***********************************************************************/
5111 DEFUN ("internal-set-font-selection-order",
5112 Finternal_set_font_selection_order
,
5113 Sinternal_set_font_selection_order
, 1, 1, 0,
5114 doc
: /* Set font selection order for face font selection to ORDER.
5115 ORDER must be a list of length 4 containing the symbols `:width',
5116 `:height', `:weight', and `:slant'. Face attributes appearing
5117 first in ORDER are matched first, e.g. if `:height' appears before
5118 `:weight' in ORDER, font selection first tries to find a font with
5119 a suitable height, and then tries to match the font weight.
5125 int indices
[DIM (font_sort_order
)];
5128 memset (indices
, 0, sizeof indices
);
5132 CONSP (list
) && i
< DIM (indices
);
5133 list
= XCDR (list
), ++i
)
5135 Lisp_Object attr
= XCAR (list
);
5138 if (EQ (attr
, QCwidth
))
5140 else if (EQ (attr
, QCheight
))
5141 xlfd
= XLFD_POINT_SIZE
;
5142 else if (EQ (attr
, QCweight
))
5144 else if (EQ (attr
, QCslant
))
5149 if (indices
[i
] != 0)
5154 if (!NILP (list
) || i
!= DIM (indices
))
5155 signal_error ("Invalid font sort order", order
);
5156 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5157 if (indices
[i
] == 0)
5158 signal_error ("Invalid font sort order", order
);
5160 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5162 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5163 free_all_realized_faces (Qnil
);
5166 font_update_sort_order (font_sort_order
);
5172 DEFUN ("internal-set-alternative-font-family-alist",
5173 Finternal_set_alternative_font_family_alist
,
5174 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5175 doc
: /* Define alternative font families to try in face font selection.
5176 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5177 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5178 be found. Value is ALIST. */)
5181 Lisp_Object entry
, tail
, tail2
;
5184 alist
= Fcopy_sequence (alist
);
5185 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5187 entry
= XCAR (tail
);
5189 entry
= Fcopy_sequence (entry
);
5190 XSETCAR (tail
, entry
);
5191 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5192 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5195 Vface_alternative_font_family_alist
= alist
;
5196 free_all_realized_faces (Qnil
);
5201 DEFUN ("internal-set-alternative-font-registry-alist",
5202 Finternal_set_alternative_font_registry_alist
,
5203 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5204 doc
: /* Define alternative font registries to try in face font selection.
5205 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5206 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5207 be found. Value is ALIST. */)
5210 Lisp_Object entry
, tail
, tail2
;
5213 alist
= Fcopy_sequence (alist
);
5214 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5216 entry
= XCAR (tail
);
5218 entry
= Fcopy_sequence (entry
);
5219 XSETCAR (tail
, entry
);
5220 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5221 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5223 Vface_alternative_font_registry_alist
= alist
;
5224 free_all_realized_faces (Qnil
);
5229 #ifdef HAVE_WINDOW_SYSTEM
5231 /* Return the fontset id of the base fontset name or alias name given
5232 by the fontset attribute of ATTRS. Value is -1 if the fontset
5233 attribute of ATTRS doesn't name a fontset. */
5236 face_fontset (Lisp_Object
*attrs
)
5240 name
= attrs
[LFACE_FONTSET_INDEX
];
5241 if (!STRINGP (name
))
5243 return fs_query_fontset (name
, 0);
5246 #endif /* HAVE_WINDOW_SYSTEM */
5250 /***********************************************************************
5252 ***********************************************************************/
5254 /* Realize basic faces on frame F. Value is zero if frame parameters
5255 of F don't contain enough information needed to realize the default
5259 realize_basic_faces (struct frame
*f
)
5262 int count
= SPECPDL_INDEX ();
5264 /* Block input here so that we won't be surprised by an X expose
5265 event, for instance, without having the faces set up. */
5267 specbind (Qscalable_fonts_allowed
, Qt
);
5269 if (realize_default_face (f
))
5271 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5272 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5273 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5274 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5275 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5276 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5277 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5278 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5279 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5280 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5281 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5283 /* Reflect changes in the `menu' face in menu bars. */
5284 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5286 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5287 #ifdef USE_X_TOOLKIT
5288 if (FRAME_WINDOW_P (f
))
5289 x_update_menu_appearance (f
);
5296 unbind_to (count
, Qnil
);
5302 /* Realize the default face on frame F. If the face is not fully
5303 specified, make it fully-specified. Attributes of the default face
5304 that are not explicitly specified are taken from frame parameters. */
5307 realize_default_face (struct frame
*f
)
5309 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5311 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5314 /* If the `default' face is not yet known, create it. */
5315 lface
= lface_from_face_name (f
, Qdefault
, 0);
5319 XSETFRAME (frame
, f
);
5320 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5323 #ifdef HAVE_WINDOW_SYSTEM
5324 if (FRAME_WINDOW_P (f
))
5326 Lisp_Object font_object
;
5328 XSETFONT (font_object
, FRAME_FONT (f
));
5329 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5330 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5331 f
->default_face_done_p
= 1;
5333 #endif /* HAVE_WINDOW_SYSTEM */
5335 if (!FRAME_WINDOW_P (f
))
5337 LFACE_FAMILY (lface
) = build_string ("default");
5338 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5339 LFACE_SWIDTH (lface
) = Qnormal
;
5340 LFACE_HEIGHT (lface
) = make_number (1);
5341 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5342 LFACE_WEIGHT (lface
) = Qnormal
;
5343 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5344 LFACE_SLANT (lface
) = Qnormal
;
5345 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5346 LFACE_FONTSET (lface
) = Qnil
;
5349 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5350 LFACE_UNDERLINE (lface
) = Qnil
;
5352 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5353 LFACE_OVERLINE (lface
) = Qnil
;
5355 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5356 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5358 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5359 LFACE_BOX (lface
) = Qnil
;
5361 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5362 LFACE_INVERSE (lface
) = Qnil
;
5364 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5366 /* This function is called so early that colors are not yet
5367 set in the frame parameter list. */
5368 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5370 if (CONSP (color
) && STRINGP (XCDR (color
)))
5371 LFACE_FOREGROUND (lface
) = XCDR (color
);
5372 else if (FRAME_WINDOW_P (f
))
5374 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5375 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5380 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5382 /* This function is called so early that colors are not yet
5383 set in the frame parameter list. */
5384 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5385 if (CONSP (color
) && STRINGP (XCDR (color
)))
5386 LFACE_BACKGROUND (lface
) = XCDR (color
);
5387 else if (FRAME_WINDOW_P (f
))
5389 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5390 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5395 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5396 LFACE_STIPPLE (lface
) = Qnil
;
5398 /* Realize the face; it must be fully-specified now. */
5399 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5400 check_lface (lface
);
5401 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5402 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5404 #ifdef HAVE_WINDOW_SYSTEM
5405 #ifdef HAVE_X_WINDOWS
5406 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5408 /* This can happen when making a frame on a display that does
5409 not support the default font. */
5413 /* Otherwise, the font specified for the frame was not
5414 acceptable as a font for the default face (perhaps because
5415 auto-scaled fonts are rejected), so we must adjust the frame
5417 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5419 #endif /* HAVE_X_WINDOWS */
5420 #endif /* HAVE_WINDOW_SYSTEM */
5425 /* Realize basic faces other than the default face in face cache C.
5426 SYMBOL is the face name, ID is the face id the realized face must
5427 have. The default face must have been realized already. */
5430 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5432 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5433 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5434 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5435 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5437 /* The default face must exist and be fully specified. */
5438 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5439 check_lface_attrs (attrs
);
5440 xassert (lface_fully_specified_p (attrs
));
5442 /* If SYMBOL isn't know as a face, create it. */
5446 XSETFRAME (frame
, f
);
5447 lface
= Finternal_make_lisp_face (symbol
, frame
);
5450 /* Merge SYMBOL's face with the default face. */
5451 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5452 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5454 /* Realize the face. */
5455 realize_face (c
, attrs
, id
);
5459 /* Realize the fully-specified face with attributes ATTRS in face
5460 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5461 non-negative, it is an ID of face to remove before caching the new
5462 face. Value is a pointer to the newly created realized face. */
5464 static struct face
*
5465 realize_face (struct face_cache
*cache
, Lisp_Object
*attrs
, int former_face_id
)
5469 /* LFACE must be fully specified. */
5470 xassert (cache
!= NULL
);
5471 check_lface_attrs (attrs
);
5473 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5475 /* Remove the former face. */
5476 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5477 uncache_face (cache
, former_face
);
5478 free_realized_face (cache
->f
, former_face
);
5479 SET_FRAME_GARBAGED (cache
->f
);
5482 if (FRAME_WINDOW_P (cache
->f
))
5483 face
= realize_x_face (cache
, attrs
);
5484 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5485 face
= realize_tty_face (cache
, attrs
);
5486 else if (FRAME_INITIAL_P (cache
->f
))
5488 /* Create a dummy face. */
5489 face
= make_realized_face (attrs
);
5494 /* Insert the new face. */
5495 cache_face (cache
, face
, lface_hash (attrs
));
5500 #ifdef HAVE_WINDOW_SYSTEM
5501 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5502 same attributes as BASE_FACE except for the font on frame F.
5503 FONT-OBJECT may be nil, in which case, realized a face of
5506 static struct face
*
5507 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
5509 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5512 face
= (struct face
*) xmalloc (sizeof *face
);
5517 = (! NILP (font_object
)
5518 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5519 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5521 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5522 face
->colors_copied_bitwise_p
= 1;
5523 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5526 cache_face (cache
, face
, face
->hash
);
5530 #endif /* HAVE_WINDOW_SYSTEM */
5533 /* Realize the fully-specified face with attributes ATTRS in face
5534 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5535 the new face doesn't share font with the default face, a fontname
5536 is allocated from the heap and set in `font_name' of the new face,
5537 but it is not yet loaded here. Value is a pointer to the newly
5538 created realized face. */
5540 static struct face
*
5541 realize_x_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5543 struct face
*face
= NULL
;
5544 #ifdef HAVE_WINDOW_SYSTEM
5545 struct face
*default_face
;
5547 Lisp_Object stipple
, overline
, strike_through
, box
;
5549 xassert (FRAME_WINDOW_P (cache
->f
));
5551 /* Allocate a new realized face. */
5552 face
= make_realized_face (attrs
);
5553 face
->ascii_face
= face
;
5557 /* Determine the font to use. Most of the time, the font will be
5558 the same as the font of the default face, so try that first. */
5559 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5561 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5563 face
->font
= default_face
->font
;
5565 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5569 /* If the face attribute ATTRS specifies a fontset, use it as
5570 the base of a new realized fontset. Otherwise, use the same
5571 base fontset as of the default face. The base determines
5572 registry and encoding of a font. It may also determine
5573 foundry and family. The other fields of font name pattern
5574 are constructed from ATTRS. */
5575 int fontset
= face_fontset (attrs
);
5577 /* If we are realizing the default face, ATTRS should specify a
5578 fontset. In other words, if FONTSET is -1, we are not
5579 realizing the default face, thus the default face should have
5580 already been realized. */
5584 fontset
= default_face
->fontset
;
5588 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5589 attrs
[LFACE_FONT_INDEX
]
5590 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5591 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5593 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5594 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5604 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5605 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5606 face
->overstrike
= 1;
5608 /* Load colors, and set remaining attributes. */
5610 load_face_colors (f
, face
, attrs
);
5613 box
= attrs
[LFACE_BOX_INDEX
];
5616 /* A simple box of line width 1 drawn in color given by
5618 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5620 face
->box
= FACE_SIMPLE_BOX
;
5621 face
->box_line_width
= 1;
5623 else if (INTEGERP (box
))
5625 /* Simple box of specified line width in foreground color of the
5627 xassert (XINT (box
) != 0);
5628 face
->box
= FACE_SIMPLE_BOX
;
5629 face
->box_line_width
= XINT (box
);
5630 face
->box_color
= face
->foreground
;
5631 face
->box_color_defaulted_p
= 1;
5633 else if (CONSP (box
))
5635 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5636 being one of `raised' or `sunken'. */
5637 face
->box
= FACE_SIMPLE_BOX
;
5638 face
->box_color
= face
->foreground
;
5639 face
->box_color_defaulted_p
= 1;
5640 face
->box_line_width
= 1;
5644 Lisp_Object keyword
, value
;
5646 keyword
= XCAR (box
);
5654 if (EQ (keyword
, QCline_width
))
5656 if (INTEGERP (value
) && XINT (value
) != 0)
5657 face
->box_line_width
= XINT (value
);
5659 else if (EQ (keyword
, QCcolor
))
5661 if (STRINGP (value
))
5663 face
->box_color
= load_color (f
, face
, value
,
5665 face
->use_box_color_for_shadows_p
= 1;
5668 else if (EQ (keyword
, QCstyle
))
5670 if (EQ (value
, Qreleased_button
))
5671 face
->box
= FACE_RAISED_BOX
;
5672 else if (EQ (value
, Qpressed_button
))
5673 face
->box
= FACE_SUNKEN_BOX
;
5678 /* Text underline, overline, strike-through. */
5680 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5682 /* Use default color (same as foreground color). */
5683 face
->underline_p
= 1;
5684 face
->underline_defaulted_p
= 1;
5685 face
->underline_color
= 0;
5687 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5689 /* Use specified color. */
5690 face
->underline_p
= 1;
5691 face
->underline_defaulted_p
= 0;
5692 face
->underline_color
5693 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5694 LFACE_UNDERLINE_INDEX
);
5696 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5698 face
->underline_p
= 0;
5699 face
->underline_defaulted_p
= 0;
5700 face
->underline_color
= 0;
5703 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5704 if (STRINGP (overline
))
5706 face
->overline_color
5707 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5708 LFACE_OVERLINE_INDEX
);
5709 face
->overline_p
= 1;
5711 else if (EQ (overline
, Qt
))
5713 face
->overline_color
= face
->foreground
;
5714 face
->overline_color_defaulted_p
= 1;
5715 face
->overline_p
= 1;
5718 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5719 if (STRINGP (strike_through
))
5721 face
->strike_through_color
5722 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5723 LFACE_STRIKE_THROUGH_INDEX
);
5724 face
->strike_through_p
= 1;
5726 else if (EQ (strike_through
, Qt
))
5728 face
->strike_through_color
= face
->foreground
;
5729 face
->strike_through_color_defaulted_p
= 1;
5730 face
->strike_through_p
= 1;
5733 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5734 if (!NILP (stipple
))
5735 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5736 #endif /* HAVE_WINDOW_SYSTEM */
5742 /* Map a specified color of face FACE on frame F to a tty color index.
5743 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5744 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5745 default foreground/background colors. */
5748 map_tty_color (struct frame
*f
, struct face
*face
, enum lface_attribute_index idx
, int *defaulted
)
5750 Lisp_Object frame
, color
, def
;
5751 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5752 unsigned long default_pixel
=
5753 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5754 unsigned long pixel
= default_pixel
;
5756 unsigned long default_other_pixel
=
5757 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5760 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5762 XSETFRAME (frame
, f
);
5763 color
= face
->lface
[idx
];
5767 && CONSP (Vtty_defined_color_alist
)
5768 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5771 /* Associations in tty-defined-color-alist are of the form
5772 (NAME INDEX R G B). We need the INDEX part. */
5773 pixel
= XINT (XCAR (XCDR (def
)));
5776 if (pixel
== default_pixel
&& STRINGP (color
))
5778 pixel
= load_color (f
, face
, color
, idx
);
5781 /* If the foreground of the default face is the default color,
5782 use the foreground color defined by the frame. */
5783 if (FRAME_MSDOS_P (f
))
5785 if (pixel
== default_pixel
5786 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5789 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5791 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5792 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5795 else if (pixel
== default_other_pixel
)
5798 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5800 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5801 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5809 face
->foreground
= pixel
;
5811 face
->background
= pixel
;
5815 /* Realize the fully-specified face with attributes ATTRS in face
5816 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5817 Value is a pointer to the newly created realized face. */
5819 static struct face
*
5820 realize_tty_face (struct face_cache
*cache
, Lisp_Object
*attrs
)
5824 int face_colors_defaulted
= 0;
5825 struct frame
*f
= cache
->f
;
5827 /* Frame must be a termcap frame. */
5828 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5830 /* Allocate a new realized face. */
5831 face
= make_realized_face (attrs
);
5833 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5836 /* Map face attributes to TTY appearances. We map slant to
5837 dimmed text because we want italic text to appear differently
5838 and because dimmed text is probably used infrequently. */
5839 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5840 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5842 face
->tty_bold_p
= 1;
5843 if (weight
< 100 || slant
!= 100)
5844 face
->tty_dim_p
= 1;
5845 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5846 face
->tty_underline_p
= 1;
5847 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5848 face
->tty_reverse_p
= 1;
5850 /* Map color names to color indices. */
5851 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5852 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5854 /* Swap colors if face is inverse-video. If the colors are taken
5855 from the frame colors, they are already inverted, since the
5856 frame-creation function calls x-handle-reverse-video. */
5857 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5859 unsigned long tem
= face
->foreground
;
5860 face
->foreground
= face
->background
;
5861 face
->background
= tem
;
5864 if (tty_suppress_bold_inverse_default_colors_p
5866 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5867 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5868 face
->tty_bold_p
= 0;
5874 DEFUN ("tty-suppress-bold-inverse-default-colors",
5875 Ftty_suppress_bold_inverse_default_colors
,
5876 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5877 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5878 SUPPRESS non-nil means suppress it.
5879 This affects bold faces on TTYs whose foreground is the default background
5880 color of the display and whose background is the default foreground color.
5881 For such faces, the bold face attribute is ignored if this variable
5883 (Lisp_Object suppress
)
5885 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5886 ++face_change_count
;
5892 /***********************************************************************
5894 ***********************************************************************/
5896 /* Return the ID of the face to use to display character CH with face
5897 property PROP on frame F in current_buffer. */
5900 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5904 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5909 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5910 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5914 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5915 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5916 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5917 merge_face_ref (f
, prop
, attrs
, 1, 0);
5918 face_id
= lookup_face (f
, attrs
);
5924 /* Return the face ID associated with buffer position POS for
5925 displaying ASCII characters. Return in *ENDPTR the position at
5926 which a different face is needed, as far as text properties and
5927 overlays are concerned. W is a window displaying current_buffer.
5929 REGION_BEG, REGION_END delimit the region, so it can be
5932 LIMIT is a position not to scan beyond. That is to limit the time
5933 this function can take.
5935 If MOUSE is non-zero, use the character's mouse-face, not its face.
5937 BASE_FACE_ID, if non-negative, specifies a base face id to use
5938 instead of DEFAULT_FACE_ID.
5940 The face returned is suitable for displaying ASCII characters. */
5943 face_at_buffer_position (struct window
*w
, EMACS_INT pos
,
5944 EMACS_INT region_beg
, EMACS_INT region_end
,
5945 EMACS_INT
*endptr
, EMACS_INT limit
,
5946 int mouse
, int base_face_id
)
5948 struct frame
*f
= XFRAME (w
->frame
);
5949 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5950 Lisp_Object prop
, position
;
5952 Lisp_Object
*overlay_vec
;
5955 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5956 Lisp_Object limit1
, end
;
5957 struct face
*default_face
;
5959 /* W must display the current buffer. We could write this function
5960 to use the frame and buffer of W, but right now it doesn't. */
5961 /* xassert (XBUFFER (w->buffer) == current_buffer); */
5963 XSETFRAME (frame
, f
);
5964 XSETFASTINT (position
, pos
);
5967 if (pos
< region_beg
&& region_beg
< endpos
)
5968 endpos
= region_beg
;
5970 /* Get the `face' or `mouse_face' text property at POS, and
5971 determine the next position at which the property changes. */
5972 prop
= Fget_text_property (position
, propname
, w
->buffer
);
5973 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5974 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
5976 endpos
= XINT (end
);
5978 /* Look at properties from overlays. */
5980 EMACS_INT next_overlay
;
5982 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5983 if (next_overlay
< endpos
)
5984 endpos
= next_overlay
;
5989 default_face
= FACE_FROM_ID (f
, base_face_id
>= 0 ? base_face_id
5990 : NILP (Vface_remapping_alist
) ? DEFAULT_FACE_ID
5991 : lookup_basic_face (f
, DEFAULT_FACE_ID
));
5993 /* Optimize common cases where we can use the default face. */
5996 && !(pos
>= region_beg
&& pos
< region_end
))
5997 return default_face
->id
;
5999 /* Begin with attributes from the default face. */
6000 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6002 /* Merge in attributes specified via text properties. */
6004 merge_face_ref (f
, prop
, attrs
, 1, 0);
6006 /* Now merge the overlay data. */
6007 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6008 for (i
= 0; i
< noverlays
; i
++)
6013 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6015 merge_face_ref (f
, prop
, attrs
, 1, 0);
6017 oend
= OVERLAY_END (overlay_vec
[i
]);
6018 oendpos
= OVERLAY_POSITION (oend
);
6019 if (oendpos
< endpos
)
6023 /* If in the region, merge in the region face. */
6024 if (pos
>= region_beg
&& pos
< region_end
)
6026 merge_named_face (f
, Qregion
, attrs
, 0);
6028 if (region_end
< endpos
)
6029 endpos
= region_end
;
6034 /* Look up a realized face with the given face attributes,
6035 or realize a new one for ASCII characters. */
6036 return lookup_face (f
, attrs
);
6039 /* Return the face ID at buffer position POS for displaying ASCII
6040 characters associated with overlay strings for overlay OVERLAY.
6042 Like face_at_buffer_position except for OVERLAY. Currently it
6043 simply disregards the `face' properties of all overlays. */
6046 face_for_overlay_string (struct window
*w
, EMACS_INT pos
,
6047 EMACS_INT region_beg
, EMACS_INT region_end
,
6048 EMACS_INT
*endptr
, EMACS_INT limit
,
6049 int mouse
, Lisp_Object overlay
)
6051 struct frame
*f
= XFRAME (w
->frame
);
6052 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6053 Lisp_Object prop
, position
;
6056 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6057 Lisp_Object limit1
, end
;
6058 struct face
*default_face
;
6060 /* W must display the current buffer. We could write this function
6061 to use the frame and buffer of W, but right now it doesn't. */
6062 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6064 XSETFRAME (frame
, f
);
6065 XSETFASTINT (position
, pos
);
6068 if (pos
< region_beg
&& region_beg
< endpos
)
6069 endpos
= region_beg
;
6071 /* Get the `face' or `mouse_face' text property at POS, and
6072 determine the next position at which the property changes. */
6073 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6074 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6075 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6077 endpos
= XINT (end
);
6081 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6083 /* Optimize common cases where we can use the default face. */
6085 && !(pos
>= region_beg
&& pos
< region_end
))
6086 return DEFAULT_FACE_ID
;
6088 /* Begin with attributes from the default face. */
6089 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6091 /* Merge in attributes specified via text properties. */
6093 merge_face_ref (f
, prop
, attrs
, 1, 0);
6095 /* If in the region, merge in the region face. */
6096 if (pos
>= region_beg
&& pos
< region_end
)
6098 merge_named_face (f
, Qregion
, attrs
, 0);
6100 if (region_end
< endpos
)
6101 endpos
= region_end
;
6106 /* Look up a realized face with the given face attributes,
6107 or realize a new one for ASCII characters. */
6108 return lookup_face (f
, attrs
);
6112 /* Compute the face at character position POS in Lisp string STRING on
6113 window W, for ASCII characters.
6115 If STRING is an overlay string, it comes from position BUFPOS in
6116 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6117 not an overlay string. W must display the current buffer.
6118 REGION_BEG and REGION_END give the start and end positions of the
6119 region; both are -1 if no region is visible.
6121 BASE_FACE_ID is the id of a face to merge with. For strings coming
6122 from overlays or the `display' property it is the face at BUFPOS.
6124 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6126 Set *ENDPTR to the next position where to check for faces in
6127 STRING; -1 if the face is constant from POS to the end of the
6130 Value is the id of the face to use. The face returned is suitable
6131 for displaying ASCII characters. */
6134 face_at_string_position (struct window
*w
, Lisp_Object string
,
6135 EMACS_INT pos
, EMACS_INT bufpos
,
6136 EMACS_INT region_beg
, EMACS_INT region_end
,
6137 EMACS_INT
*endptr
, enum face_id base_face_id
,
6140 Lisp_Object prop
, position
, end
, limit
;
6141 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6142 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6143 struct face
*base_face
;
6144 int multibyte_p
= STRING_MULTIBYTE (string
);
6145 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6147 /* Get the value of the face property at the current position within
6148 STRING. Value is nil if there is no face property. */
6149 XSETFASTINT (position
, pos
);
6150 prop
= Fget_text_property (position
, prop_name
, string
);
6152 /* Get the next position at which to check for faces. Value of end
6153 is nil if face is constant all the way to the end of the string.
6154 Otherwise it is a string position where to check faces next.
6155 Limit is the maximum position up to which to check for property
6156 changes in Fnext_single_property_change. Strings are usually
6157 short, so set the limit to the end of the string. */
6158 XSETFASTINT (limit
, SCHARS (string
));
6159 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6161 *endptr
= XFASTINT (end
);
6165 base_face
= FACE_FROM_ID (f
, base_face_id
);
6166 xassert (base_face
);
6168 /* Optimize the default case that there is no face property and we
6169 are not in the region. */
6171 && (base_face_id
!= DEFAULT_FACE_ID
6172 /* BUFPOS <= 0 means STRING is not an overlay string, so
6173 that the region doesn't have to be taken into account. */
6175 || bufpos
< region_beg
6176 || bufpos
>= region_end
)
6178 /* We can't realize faces for different charsets differently
6179 if we don't have fonts, so we can stop here if not working
6180 on a window-system frame. */
6181 || !FRAME_WINDOW_P (f
)
6182 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6183 return base_face
->id
;
6185 /* Begin with attributes from the base face. */
6186 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6188 /* Merge in attributes specified via text properties. */
6190 merge_face_ref (f
, prop
, attrs
, 1, 0);
6192 /* If in the region, merge in the region face. */
6194 && bufpos
>= region_beg
6195 && bufpos
< region_end
)
6196 merge_named_face (f
, Qregion
, attrs
, 0);
6198 /* Look up a realized face with the given face attributes,
6199 or realize a new one for ASCII characters. */
6200 return lookup_face (f
, attrs
);
6204 /* Merge a face into a realized face.
6206 F is frame where faces are (to be) realized.
6208 FACE_NAME is named face to merge.
6210 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6212 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6214 BASE_FACE_ID is realized face to merge into.
6220 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
, int base_face_id
)
6222 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6223 struct face
*base_face
;
6225 base_face
= FACE_FROM_ID (f
, base_face_id
);
6227 return base_face_id
;
6229 if (EQ (face_name
, Qt
))
6231 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6232 return base_face_id
;
6233 face_name
= lface_id_to_name
[face_id
];
6234 /* When called during make-frame, lookup_derived_face may fail
6235 if the faces are uninitialized. Don't signal an error. */
6236 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6237 return (face_id
>= 0 ? face_id
: base_face_id
);
6240 /* Begin with attributes from the base face. */
6241 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6243 if (!NILP (face_name
))
6245 if (!merge_named_face (f
, face_name
, attrs
, 0))
6246 return base_face_id
;
6252 return base_face_id
;
6253 face
= FACE_FROM_ID (f
, face_id
);
6255 return base_face_id
;
6256 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6259 /* Look up a realized face with the given face attributes,
6260 or realize a new one for ASCII characters. */
6261 return lookup_face (f
, attrs
);
6266 #ifndef HAVE_X_WINDOWS
6267 DEFUN ("x-load-color-file", Fx_load_color_file
,
6268 Sx_load_color_file
, 1, 1, 0,
6269 doc
: /* Create an alist of color entries from an external file.
6271 The file should define one named RGB color per line like so:
6273 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6274 (Lisp_Object filename
)
6277 Lisp_Object cmap
= Qnil
;
6278 Lisp_Object abspath
;
6280 CHECK_STRING (filename
);
6281 abspath
= Fexpand_file_name (filename
, Qnil
);
6283 fp
= fopen (SDATA (abspath
), "rt");
6287 int red
, green
, blue
;
6292 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6293 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6295 char *name
= buf
+ num
;
6296 num
= strlen (name
) - 1;
6297 if (num
>= 0 && name
[num
] == '\n')
6299 cmap
= Fcons (Fcons (build_string (name
),
6301 make_number (RGB (red
, green
, blue
))),
6303 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6318 /***********************************************************************
6320 ***********************************************************************/
6324 /* Print the contents of the realized face FACE to stderr. */
6327 dump_realized_face (face
)
6330 fprintf (stderr
, "ID: %d\n", face
->id
);
6331 #ifdef HAVE_X_WINDOWS
6332 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6334 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6336 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6337 fprintf (stderr
, "background: 0x%lx (%s)\n",
6339 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6341 fprintf (stderr
, "font_name: %s (%s)\n",
6342 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6343 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6344 #ifdef HAVE_X_WINDOWS
6345 fprintf (stderr
, "font = %p\n", face
->font
);
6347 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6348 fprintf (stderr
, "underline: %d (%s)\n",
6350 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6351 fprintf (stderr
, "hash: %d\n", face
->hash
);
6355 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6362 fprintf (stderr
, "font selection order: ");
6363 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6364 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6365 fprintf (stderr
, "\n");
6367 fprintf (stderr
, "alternative fonts: ");
6368 debug_print (Vface_alternative_font_family_alist
);
6369 fprintf (stderr
, "\n");
6371 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6372 Fdump_face (make_number (i
));
6378 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6380 error ("Not a valid face");
6381 dump_realized_face (face
);
6388 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6389 0, 0, 0, doc
: /* */)
6392 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6393 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6394 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6398 #endif /* GLYPH_DEBUG != 0 */
6402 /***********************************************************************
6404 ***********************************************************************/
6407 syms_of_xfaces (void)
6409 Qface
= intern_c_string ("face");
6411 Qface_no_inherit
= intern_c_string ("face-no-inherit");
6412 staticpro (&Qface_no_inherit
);
6413 Qbitmap_spec_p
= intern_c_string ("bitmap-spec-p");
6414 staticpro (&Qbitmap_spec_p
);
6415 Qframe_set_background_mode
= intern_c_string ("frame-set-background-mode");
6416 staticpro (&Qframe_set_background_mode
);
6418 /* Lisp face attribute keywords. */
6419 QCfamily
= intern_c_string (":family");
6420 staticpro (&QCfamily
);
6421 QCheight
= intern_c_string (":height");
6422 staticpro (&QCheight
);
6423 QCweight
= intern_c_string (":weight");
6424 staticpro (&QCweight
);
6425 QCslant
= intern_c_string (":slant");
6426 staticpro (&QCslant
);
6427 QCunderline
= intern_c_string (":underline");
6428 staticpro (&QCunderline
);
6429 QCinverse_video
= intern_c_string (":inverse-video");
6430 staticpro (&QCinverse_video
);
6431 QCreverse_video
= intern_c_string (":reverse-video");
6432 staticpro (&QCreverse_video
);
6433 QCforeground
= intern_c_string (":foreground");
6434 staticpro (&QCforeground
);
6435 QCbackground
= intern_c_string (":background");
6436 staticpro (&QCbackground
);
6437 QCstipple
= intern_c_string (":stipple");
6438 staticpro (&QCstipple
);
6439 QCwidth
= intern_c_string (":width");
6440 staticpro (&QCwidth
);
6441 QCfont
= intern_c_string (":font");
6442 staticpro (&QCfont
);
6443 QCfontset
= intern_c_string (":fontset");
6444 staticpro (&QCfontset
);
6445 QCbold
= intern_c_string (":bold");
6446 staticpro (&QCbold
);
6447 QCitalic
= intern_c_string (":italic");
6448 staticpro (&QCitalic
);
6449 QCoverline
= intern_c_string (":overline");
6450 staticpro (&QCoverline
);
6451 QCstrike_through
= intern_c_string (":strike-through");
6452 staticpro (&QCstrike_through
);
6453 QCbox
= intern_c_string (":box");
6455 QCinherit
= intern_c_string (":inherit");
6456 staticpro (&QCinherit
);
6458 /* Symbols used for Lisp face attribute values. */
6459 QCcolor
= intern_c_string (":color");
6460 staticpro (&QCcolor
);
6461 QCline_width
= intern_c_string (":line-width");
6462 staticpro (&QCline_width
);
6463 QCstyle
= intern_c_string (":style");
6464 staticpro (&QCstyle
);
6465 Qreleased_button
= intern_c_string ("released-button");
6466 staticpro (&Qreleased_button
);
6467 Qpressed_button
= intern_c_string ("pressed-button");
6468 staticpro (&Qpressed_button
);
6469 Qnormal
= intern_c_string ("normal");
6470 staticpro (&Qnormal
);
6471 Qultra_light
= intern_c_string ("ultra-light");
6472 staticpro (&Qultra_light
);
6473 Qextra_light
= intern_c_string ("extra-light");
6474 staticpro (&Qextra_light
);
6475 Qlight
= intern_c_string ("light");
6476 staticpro (&Qlight
);
6477 Qsemi_light
= intern_c_string ("semi-light");
6478 staticpro (&Qsemi_light
);
6479 Qsemi_bold
= intern_c_string ("semi-bold");
6480 staticpro (&Qsemi_bold
);
6481 Qbold
= intern_c_string ("bold");
6483 Qextra_bold
= intern_c_string ("extra-bold");
6484 staticpro (&Qextra_bold
);
6485 Qultra_bold
= intern_c_string ("ultra-bold");
6486 staticpro (&Qultra_bold
);
6487 Qoblique
= intern_c_string ("oblique");
6488 staticpro (&Qoblique
);
6489 Qitalic
= intern_c_string ("italic");
6490 staticpro (&Qitalic
);
6491 Qreverse_oblique
= intern_c_string ("reverse-oblique");
6492 staticpro (&Qreverse_oblique
);
6493 Qreverse_italic
= intern_c_string ("reverse-italic");
6494 staticpro (&Qreverse_italic
);
6495 Qultra_condensed
= intern_c_string ("ultra-condensed");
6496 staticpro (&Qultra_condensed
);
6497 Qextra_condensed
= intern_c_string ("extra-condensed");
6498 staticpro (&Qextra_condensed
);
6499 Qcondensed
= intern_c_string ("condensed");
6500 staticpro (&Qcondensed
);
6501 Qsemi_condensed
= intern_c_string ("semi-condensed");
6502 staticpro (&Qsemi_condensed
);
6503 Qsemi_expanded
= intern_c_string ("semi-expanded");
6504 staticpro (&Qsemi_expanded
);
6505 Qexpanded
= intern_c_string ("expanded");
6506 staticpro (&Qexpanded
);
6507 Qextra_expanded
= intern_c_string ("extra-expanded");
6508 staticpro (&Qextra_expanded
);
6509 Qultra_expanded
= intern_c_string ("ultra-expanded");
6510 staticpro (&Qultra_expanded
);
6511 Qbackground_color
= intern_c_string ("background-color");
6512 staticpro (&Qbackground_color
);
6513 Qforeground_color
= intern_c_string ("foreground-color");
6514 staticpro (&Qforeground_color
);
6515 Qunspecified
= intern_c_string ("unspecified");
6516 staticpro (&Qunspecified
);
6517 Qignore_defface
= intern_c_string (":ignore-defface");
6518 staticpro (&Qignore_defface
);
6520 Qface_alias
= intern_c_string ("face-alias");
6521 staticpro (&Qface_alias
);
6522 Qdefault
= intern_c_string ("default");
6523 staticpro (&Qdefault
);
6524 Qtool_bar
= intern_c_string ("tool-bar");
6525 staticpro (&Qtool_bar
);
6526 Qregion
= intern_c_string ("region");
6527 staticpro (&Qregion
);
6528 Qfringe
= intern_c_string ("fringe");
6529 staticpro (&Qfringe
);
6530 Qheader_line
= intern_c_string ("header-line");
6531 staticpro (&Qheader_line
);
6532 Qscroll_bar
= intern_c_string ("scroll-bar");
6533 staticpro (&Qscroll_bar
);
6534 Qmenu
= intern_c_string ("menu");
6536 Qcursor
= intern_c_string ("cursor");
6537 staticpro (&Qcursor
);
6538 Qborder
= intern_c_string ("border");
6539 staticpro (&Qborder
);
6540 Qmouse
= intern_c_string ("mouse");
6541 staticpro (&Qmouse
);
6542 Qmode_line_inactive
= intern_c_string ("mode-line-inactive");
6543 staticpro (&Qmode_line_inactive
);
6544 Qvertical_border
= intern_c_string ("vertical-border");
6545 staticpro (&Qvertical_border
);
6546 Qtty_color_desc
= intern_c_string ("tty-color-desc");
6547 staticpro (&Qtty_color_desc
);
6548 Qtty_color_standard_values
= intern_c_string ("tty-color-standard-values");
6549 staticpro (&Qtty_color_standard_values
);
6550 Qtty_color_by_index
= intern_c_string ("tty-color-by-index");
6551 staticpro (&Qtty_color_by_index
);
6552 Qtty_color_alist
= intern_c_string ("tty-color-alist");
6553 staticpro (&Qtty_color_alist
);
6554 Qscalable_fonts_allowed
= intern_c_string ("scalable-fonts-allowed");
6555 staticpro (&Qscalable_fonts_allowed
);
6557 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6558 staticpro (&Vparam_value_alist
);
6559 Vface_alternative_font_family_alist
= Qnil
;
6560 staticpro (&Vface_alternative_font_family_alist
);
6561 Vface_alternative_font_registry_alist
= Qnil
;
6562 staticpro (&Vface_alternative_font_registry_alist
);
6564 defsubr (&Sinternal_make_lisp_face
);
6565 defsubr (&Sinternal_lisp_face_p
);
6566 defsubr (&Sinternal_set_lisp_face_attribute
);
6567 #ifdef HAVE_WINDOW_SYSTEM
6568 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6570 defsubr (&Scolor_gray_p
);
6571 defsubr (&Scolor_supported_p
);
6572 #ifndef HAVE_X_WINDOWS
6573 defsubr (&Sx_load_color_file
);
6575 defsubr (&Sface_attribute_relative_p
);
6576 defsubr (&Smerge_face_attribute
);
6577 defsubr (&Sinternal_get_lisp_face_attribute
);
6578 defsubr (&Sinternal_lisp_face_attribute_values
);
6579 defsubr (&Sinternal_lisp_face_equal_p
);
6580 defsubr (&Sinternal_lisp_face_empty_p
);
6581 defsubr (&Sinternal_copy_lisp_face
);
6582 defsubr (&Sinternal_merge_in_global_face
);
6583 defsubr (&Sface_font
);
6584 defsubr (&Sframe_face_alist
);
6585 defsubr (&Sdisplay_supports_face_attributes_p
);
6586 defsubr (&Scolor_distance
);
6587 defsubr (&Sinternal_set_font_selection_order
);
6588 defsubr (&Sinternal_set_alternative_font_family_alist
);
6589 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6590 defsubr (&Sface_attributes_as_vector
);
6592 defsubr (&Sdump_face
);
6593 defsubr (&Sshow_face_resources
);
6594 #endif /* GLYPH_DEBUG */
6595 defsubr (&Sclear_face_cache
);
6596 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6598 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6599 defsubr (&Sdump_colors
);
6602 DEFVAR_LISP ("font-list-limit", Vfont_list_limit
,
6603 doc
: /* *Limit for font matching.
6604 If an integer > 0, font matching functions won't load more than
6605 that number of fonts when searching for a matching font. */);
6606 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6608 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6609 doc
: /* List of global face definitions (for internal use only.) */);
6610 Vface_new_frame_defaults
= Qnil
;
6612 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6613 doc
: /* *Default stipple pattern used on monochrome displays.
6614 This stipple pattern is used on monochrome displays
6615 instead of shades of gray for a face background color.
6616 See `set-face-stipple' for possible values for this variable. */);
6617 Vface_default_stipple
= make_pure_c_string ("gray3");
6619 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6620 doc
: /* An alist of defined terminal colors and their RGB values.
6621 See the docstring of `tty-color-alist' for the details. */);
6622 Vtty_defined_color_alist
= Qnil
;
6624 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6625 doc
: /* Allowed scalable fonts.
6626 A value of nil means don't allow any scalable fonts.
6627 A value of t means allow any scalable font.
6628 Otherwise, value must be a list of regular expressions. A font may be
6629 scaled if its name matches a regular expression in the list.
6630 Note that if value is nil, a scalable font might still be used, if no
6631 other font of the appropriate family and registry is available. */);
6632 Vscalable_fonts_allowed
= Qnil
;
6634 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6635 doc
: /* List of ignored fonts.
6636 Each element is a regular expression that matches names of fonts to
6638 Vface_ignored_fonts
= Qnil
;
6640 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6641 doc
: /* Alist of face remappings.
6642 Each element is of the form:
6644 (FACE REPLACEMENT...),
6646 which causes display of the face FACE to use REPLACEMENT... instead.
6647 REPLACEMENT... is interpreted the same way as the value of a `face'
6648 text property: it may be (1) A face name, (2) A list of face names,
6649 (3) A property-list of face attribute/value pairs, or (4) A list of
6650 face names or lists containing face attribute/value pairs.
6652 Multiple entries in REPLACEMENT... are merged together to form the final
6653 result, with faces or attributes earlier in the list taking precedence
6654 over those that are later.
6656 Face-name remapping cycles are suppressed; recursive references use the
6657 underlying face instead of the remapped face. So a remapping of the form:
6659 (FACE EXTRA-FACE... FACE)
6663 (FACE (FACE-ATTR VAL ...) FACE)
6665 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6666 existing definition of FACE. Note that for the default face, this isn't
6667 necessary, as every face inherits from the default face.
6669 Making this variable buffer-local is a good way to allow buffer-specific
6670 face definitions. For instance, the mode my-mode could define a face
6671 `my-mode-default', and then in the mode setup function, do:
6673 (set (make-local-variable 'face-remapping-alist)
6674 '((default my-mode-default)))).
6676 Because Emacs normally only redraws screen areas when the underlying
6677 buffer contents change, you may need to call `redraw-display' after
6678 changing this variable for it to take effect. */);
6679 Vface_remapping_alist
= Qnil
;
6681 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6682 doc
: /* Alist of fonts vs the rescaling factors.
6683 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6684 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6685 RESCALE-RATIO is a floating point number to specify how much larger
6686 \(or smaller) font we should use. For instance, if a face requests
6687 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6688 Vface_font_rescale_alist
= Qnil
;
6690 #ifdef HAVE_WINDOW_SYSTEM
6691 defsubr (&Sbitmap_spec_p
);
6692 defsubr (&Sx_list_fonts
);
6693 defsubr (&Sinternal_face_x_get_resource
);
6694 defsubr (&Sx_family_fonts
);