1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2013 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
24 When using Emacs with X, the display style of characters can be
25 changed by defining `faces'. Each face can specify the following
32 3. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 4. Font height in 1/10pt.
37 5. Font weight, e.g. `bold'.
39 6. Font slant, e.g. `italic'.
45 9. Whether or not characters should be underlined, and in what color.
47 10. Whether or not characters should be displayed in inverse video.
49 11. A background stipple, a bitmap.
51 12. Whether or not characters should be overlined, and in what color.
53 13. Whether or not characters should be strike-through, and in what
56 14. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 15. Font-spec, or nil. This is a special attribute.
61 A font-spec is a collection of font attributes (specs).
63 When this attribute is specified, the face uses a font matching
64 with the specs as is except for what overwritten by the specs in
65 the fontset (see below). In addition, the other font-related
66 attributes (1st thru 5th) are updated from the spec.
68 On the other hand, if one of the other font-related attributes are
69 specified, the corresponding specs in this attribute is set to nil.
71 15. A face name or list of face names from which to inherit attributes.
73 16. A specified average font width, which is invisible from Lisp,
74 and is used to ensure that a font specified on the command line,
75 for example, can be matched exactly.
77 17. A fontset name. This is another special attribute.
79 A fontset is a mappings from characters to font-specs, and the
80 specs overwrite the font-spec in the 14th attribute.
83 Faces are frame-local by nature because Emacs allows to define the
84 same named face (face names are symbols) differently for different
85 frames. Each frame has an alist of face definitions for all named
86 faces. The value of a named face in such an alist is a Lisp vector
87 with the symbol `face' in slot 0, and a slot for each of the face
88 attributes mentioned above.
90 There is also a global face alist `Vface_new_frame_defaults'. Face
91 definitions from this list are used to initialize faces of newly
94 A face doesn't have to specify all attributes. Those not specified
95 have a value of `unspecified'. Faces specifying all attributes but
96 the 14th are called `fully-specified'.
101 The display style of a given character in the text is determined by
102 combining several faces. This process is called `face merging'.
103 Any aspect of the display style that isn't specified by overlays or
104 text properties is taken from the `default' face. Since it is made
105 sure that the default face is always fully-specified, face merging
106 always results in a fully-specified face.
111 After all face attributes for a character have been determined by
112 merging faces of that character, that face is `realized'. The
113 realization process maps face attributes to what is physically
114 available on the system where Emacs runs. The result is a
115 `realized face' in the 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. */
203 #include "sysstdio.h"
204 #include <sys/types.h>
205 #include <sys/stat.h>
208 #include "character.h"
210 #include "keyboard.h"
212 #include "termhooks.h"
216 #include <Xm/XmStrDefs.h>
217 #endif /* USE_MOTIF */
223 #ifdef HAVE_WINDOW_SYSTEM
227 #define x_display_info w32_display_info
228 #define GCGraphicsExposures 0
229 #endif /* HAVE_NTGUI */
232 #define GCGraphicsExposures 0
234 #endif /* HAVE_WINDOW_SYSTEM */
237 #include "dispextern.h"
238 #include "blockinput.h"
240 #include "intervals.h"
241 #include "termchar.h"
245 #ifdef HAVE_X_WINDOWS
247 /* Compensate for a bug in Xos.h on some systems, on which it requires
248 time.h. On some such systems, Xos.h tries to redefine struct
249 timeval and struct timezone if USG is #defined while it is
252 #ifdef XOS_NEEDS_TIME_H
258 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
260 #else /* not XOS_NEEDS_TIME_H */
262 #endif /* not XOS_NEEDS_TIME_H */
264 #endif /* HAVE_X_WINDOWS */
268 /* Non-zero if face attribute ATTR is unspecified. */
270 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
272 /* Non-zero if face attribute ATTR is `ignore-defface'. */
274 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
276 /* Value is the number of elements of VECTOR. */
278 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
280 /* Size of hash table of realized faces in face caches (should be a
283 #define FACE_CACHE_BUCKETS_SIZE 1001
285 /* Keyword symbols used for face attribute names. */
287 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
288 static Lisp_Object QCunderline
;
289 static Lisp_Object QCinverse_video
, QCstipple
;
290 Lisp_Object QCforeground
, QCbackground
;
292 static Lisp_Object QCfont
, QCbold
, QCitalic
;
293 static Lisp_Object QCreverse_video
;
294 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
295 static Lisp_Object QCfontset
;
297 /* Symbols used for attribute values. */
301 static Lisp_Object Qline
, Qwave
;
302 Lisp_Object Qextra_light
, Qlight
;
303 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
304 Lisp_Object Qoblique
;
306 static Lisp_Object Qreleased_button
, Qpressed_button
;
307 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
308 Lisp_Object Qunspecified
; /* used in dosfns.c */
309 static Lisp_Object QCignore_defface
;
311 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
313 /* The name of the function to call when the background of the frame
314 has changed, frame_set_background_mode. */
316 static Lisp_Object Qframe_set_background_mode
;
318 /* Names of basic faces. */
320 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
321 static Lisp_Object Qregion
;
322 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
323 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
324 Lisp_Object Qmode_line_inactive
;
325 static Lisp_Object Qvertical_border
;
327 /* The symbol `face-alias'. A symbols having that property is an
328 alias for another face. Value of the property is the name of
331 static Lisp_Object Qface_alias
;
333 /* Alist of alternative font families. Each element is of the form
334 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
335 try FAMILY1, then FAMILY2, ... */
337 Lisp_Object Vface_alternative_font_family_alist
;
339 /* Alist of alternative font registries. Each element is of the form
340 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
341 loaded, try REGISTRY1, then REGISTRY2, ... */
343 Lisp_Object Vface_alternative_font_registry_alist
;
345 /* Allowed scalable fonts. A value of nil means don't allow any
346 scalable fonts. A value of t means allow the use of any scalable
347 font. Otherwise, value must be a list of regular expressions. A
348 font may be scaled if its name matches a regular expression in the
351 static Lisp_Object Qscalable_fonts_allowed
;
353 /* The symbols `foreground-color' and `background-color' which can be
354 used as part of a `face' property. This is for compatibility with
357 Lisp_Object Qforeground_color
, Qbackground_color
;
359 /* The symbols `face' and `mouse-face' used as text properties. */
363 /* Property for basic faces which other faces cannot inherit. */
365 static Lisp_Object Qface_no_inherit
;
367 /* Error symbol for wrong_type_argument in load_pixmap. */
369 static Lisp_Object Qbitmap_spec_p
;
371 /* The next ID to assign to Lisp faces. */
373 static int next_lface_id
;
375 /* A vector mapping Lisp face Id's to face names. */
377 static Lisp_Object
*lface_id_to_name
;
378 static ptrdiff_t lface_id_to_name_size
;
380 /* TTY color-related functions (defined in tty-colors.el). */
382 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
384 /* The name of the function used to compute colors on TTYs. */
386 static Lisp_Object Qtty_color_alist
;
388 #ifdef HAVE_WINDOW_SYSTEM
390 /* Counter for calls to clear_face_cache. If this counter reaches
391 CLEAR_FONT_TABLE_COUNT, and a frame has more than
392 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
394 static int clear_font_table_count
;
395 #define CLEAR_FONT_TABLE_COUNT 100
396 #define CLEAR_FONT_TABLE_NFONTS 10
398 #endif /* HAVE_WINDOW_SYSTEM */
400 /* Non-zero means face attributes have been changed since the last
401 redisplay. Used in redisplay_internal. */
403 int face_change_count
;
405 /* Non-zero means don't display bold text if a face's foreground
406 and background colors are the inverse of the default colors of the
407 display. This is a kluge to suppress `bold black' foreground text
408 which is hard to read on an LCD monitor. */
410 static int tty_suppress_bold_inverse_default_colors_p
;
412 /* A list of the form `((x . y))' used to avoid consing in
413 Finternal_set_lisp_face_attribute. */
415 static Lisp_Object Vparam_value_alist
;
417 /* The total number of colors currently allocated. */
420 static int ncolors_allocated
;
421 static int npixmaps_allocated
;
425 /* Non-zero means the definition of the `menu' face for new frames has
428 static int menu_face_changed_default
;
430 struct named_merge_point
;
432 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
434 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
435 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
436 static bool realize_basic_faces (struct frame
*);
437 static bool realize_default_face (struct frame
*);
438 static void realize_named_face (struct frame
*, Lisp_Object
, int);
439 static struct face_cache
*make_face_cache (struct frame
*);
440 static void free_face_cache (struct face_cache
*);
441 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
442 int, struct named_merge_point
*);
444 #ifdef HAVE_WINDOW_SYSTEM
445 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
446 static void clear_face_gcs (struct face_cache
*);
447 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
449 #endif /* HAVE_WINDOW_SYSTEM */
451 /***********************************************************************
453 ***********************************************************************/
455 #ifdef HAVE_X_WINDOWS
457 #ifdef DEBUG_X_COLORS
459 /* The following is a poor mans infrastructure for debugging X color
460 allocation problems on displays with PseudoColor-8. Some X servers
461 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
462 color reference counts completely so that they don't signal an
463 error when a color is freed whose reference count is already 0.
464 Other X servers do. To help me debug this, the following code
465 implements a simple reference counting schema of its own, for a
466 single display/screen. --gerd. */
468 /* Reference counts for pixel colors. */
470 int color_count
[256];
472 /* Register color PIXEL as allocated. */
475 register_color (unsigned long pixel
)
477 eassert (pixel
< 256);
478 ++color_count
[pixel
];
482 /* Register color PIXEL as deallocated. */
485 unregister_color (unsigned long pixel
)
487 eassert (pixel
< 256);
488 if (color_count
[pixel
] > 0)
489 --color_count
[pixel
];
495 /* Register N colors from PIXELS as deallocated. */
498 unregister_colors (unsigned long *pixels
, int n
)
501 for (i
= 0; i
< n
; ++i
)
502 unregister_color (pixels
[i
]);
506 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
507 doc
: /* Dump currently allocated colors to stderr. */)
512 fputc ('\n', stderr
);
514 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
517 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
520 fputc ('\n', stderr
);
522 fputc ('\t', stderr
);
526 fputc ('\n', stderr
);
530 #endif /* DEBUG_X_COLORS */
533 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
534 color values. Interrupt input must be blocked when this function
538 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
540 int class = FRAME_DISPLAY_INFO (f
)->visual
->class;
542 /* If display has an immutable color map, freeing colors is not
543 necessary and some servers don't allow it. So don't do it. */
544 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
546 #ifdef DEBUG_X_COLORS
547 unregister_colors (pixels
, npixels
);
549 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
557 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
558 color values. Interrupt input must be blocked when this function
562 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
563 long unsigned int *pixels
, int npixels
)
565 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
566 int class = dpyinfo
->visual
->class;
568 /* If display has an immutable color map, freeing colors is not
569 necessary and some servers don't allow it. So don't do it. */
570 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
572 #ifdef DEBUG_X_COLORS
573 unregister_colors (pixels
, npixels
);
575 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
578 #endif /* USE_X_TOOLKIT */
580 /* Create and return a GC for use on frame F. GC values and mask
581 are given by XGCV and MASK. */
584 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
588 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
595 /* Free GC which was used on frame F. */
598 x_free_gc (struct frame
*f
, GC gc
)
600 eassert (input_blocked_p ());
601 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
602 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
605 #endif /* HAVE_X_WINDOWS */
608 /* W32 emulation of GCs */
611 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
615 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
622 /* Free GC which was used on frame F. */
625 x_free_gc (struct frame
*f
, GC gc
)
627 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
631 #endif /* HAVE_NTGUI */
634 /* NS emulation of GCs */
637 x_create_gc (struct frame
*f
,
641 GC gc
= xmalloc (sizeof *gc
);
647 x_free_gc (struct frame
*f
, GC gc
)
653 /***********************************************************************
655 ***********************************************************************/
657 /* Initialize face cache and basic faces for frame F. */
660 init_frame_faces (struct frame
*f
)
662 /* Make a face cache, if F doesn't have one. */
663 if (FRAME_FACE_CACHE (f
) == NULL
)
664 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
666 #ifdef HAVE_WINDOW_SYSTEM
667 /* Make the image cache. */
668 if (FRAME_WINDOW_P (f
))
670 /* We initialize the image cache when creating the first frame
671 on a terminal, and not during terminal creation. This way,
672 `x-open-connection' on a tty won't create an image cache. */
673 if (FRAME_IMAGE_CACHE (f
) == NULL
)
674 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
675 ++FRAME_IMAGE_CACHE (f
)->refcount
;
677 #endif /* HAVE_WINDOW_SYSTEM */
679 /* Realize basic faces. Must have enough information in frame
680 parameters to realize basic faces at this point. */
681 #ifdef HAVE_X_WINDOWS
682 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
685 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
688 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
690 if (!realize_basic_faces (f
))
695 /* Free face cache of frame F. Called from delete_frame. */
698 free_frame_faces (struct frame
*f
)
700 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
704 free_face_cache (face_cache
);
705 FRAME_FACE_CACHE (f
) = NULL
;
708 #ifdef HAVE_WINDOW_SYSTEM
709 if (FRAME_WINDOW_P (f
))
711 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
714 --image_cache
->refcount
;
715 if (image_cache
->refcount
== 0)
716 free_image_cache (f
);
719 #endif /* HAVE_WINDOW_SYSTEM */
723 /* Clear face caches, and recompute basic faces for frame F. Call
724 this after changing frame parameters on which those faces depend,
725 or when realized faces have been freed due to changing attributes
729 recompute_basic_faces (struct frame
*f
)
731 if (FRAME_FACE_CACHE (f
))
733 clear_face_cache (0);
734 if (!realize_basic_faces (f
))
740 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
741 try to free unused fonts, too. */
744 clear_face_cache (int clear_fonts_p
)
746 #ifdef HAVE_WINDOW_SYSTEM
747 Lisp_Object tail
, frame
;
750 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
752 /* From time to time see if we can unload some fonts. This also
753 frees all realized faces on all frames. Fonts needed by
754 faces will be loaded again when faces are realized again. */
755 clear_font_table_count
= 0;
757 FOR_EACH_FRAME (tail
, frame
)
759 struct frame
*f
= XFRAME (frame
);
760 if (FRAME_WINDOW_P (f
)
761 && FRAME_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
763 clear_font_cache (f
);
764 free_all_realized_faces (frame
);
770 /* Clear GCs of realized faces. */
771 FOR_EACH_FRAME (tail
, frame
)
773 struct frame
*f
= XFRAME (frame
);
774 if (FRAME_WINDOW_P (f
))
775 clear_face_gcs (FRAME_FACE_CACHE (f
));
777 clear_image_caches (Qnil
);
779 #endif /* HAVE_WINDOW_SYSTEM */
783 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
784 doc
: /* Clear face caches on all frames.
785 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
786 (Lisp_Object thoroughly
)
788 clear_face_cache (!NILP (thoroughly
));
790 ++windows_or_buffers_changed
;
795 /***********************************************************************
797 ***********************************************************************/
799 #ifdef HAVE_WINDOW_SYSTEM
801 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
802 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
803 A bitmap specification is either a string, a file name, or a list
804 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
805 HEIGHT is its height, and DATA is a string containing the bits of
806 the pixmap. Bits are stored row by row, each row occupies
807 \(WIDTH + 7)/8 bytes. */)
812 if (STRINGP (object
))
813 /* If OBJECT is a string, it's a file name. */
815 else if (CONSP (object
))
817 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
818 HEIGHT must be ints > 0, and DATA must be string large
819 enough to hold a bitmap of the specified size. */
820 Lisp_Object width
, height
, data
;
822 height
= width
= data
= Qnil
;
826 width
= XCAR (object
);
827 object
= XCDR (object
);
830 height
= XCAR (object
);
831 object
= XCDR (object
);
833 data
= XCAR (object
);
838 && RANGED_INTEGERP (1, width
, INT_MAX
)
839 && RANGED_INTEGERP (1, height
, INT_MAX
))
841 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
843 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
848 return pixmap_p
? Qt
: Qnil
;
852 /* Load a bitmap according to NAME (which is either a file name or a
853 pixmap spec) for use on frame F. Value is the bitmap_id (see
854 xfns.c). If NAME is nil, return with a bitmap id of zero. If
855 bitmap cannot be loaded, display a message saying so, and return
859 load_pixmap (struct frame
*f
, Lisp_Object name
)
866 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
871 /* Decode a bitmap spec into a bitmap. */
876 w
= XINT (Fcar (name
));
877 h
= XINT (Fcar (Fcdr (name
)));
878 bits
= Fcar (Fcdr (Fcdr (name
)));
880 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
885 /* It must be a string -- a file name. */
886 bitmap_id
= x_create_bitmap_from_file (f
, name
);
892 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
898 ++npixmaps_allocated
;
905 #endif /* HAVE_WINDOW_SYSTEM */
909 /***********************************************************************
911 ***********************************************************************/
913 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
914 RGB_LIST should contain (at least) 3 lisp integers.
915 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
918 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
920 #define PARSE_RGB_LIST_FIELD(field) \
921 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
923 color->field = XINT (XCAR (rgb_list)); \
924 rgb_list = XCDR (rgb_list); \
929 PARSE_RGB_LIST_FIELD (red
);
930 PARSE_RGB_LIST_FIELD (green
);
931 PARSE_RGB_LIST_FIELD (blue
);
937 /* Lookup on frame F the color described by the lisp string COLOR.
938 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
939 non-zero, then the `standard' definition of the same color is
943 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
946 Lisp_Object frame
, color_desc
;
948 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
951 XSETFRAME (frame
, f
);
953 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
954 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
958 if (! INTEGERP (XCAR (XCDR (color_desc
))))
961 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
963 rgb
= XCDR (XCDR (color_desc
));
964 if (! parse_rgb_list (rgb
, tty_color
))
967 /* Should we fill in STD_COLOR too? */
970 /* Default STD_COLOR to the same as TTY_COLOR. */
971 *std_color
= *tty_color
;
973 /* Do a quick check to see if the returned descriptor is
974 actually _exactly_ equal to COLOR, otherwise we have to
975 lookup STD_COLOR separately. If it's impossible to lookup
976 a standard color, we just give up and use TTY_COLOR. */
977 if ((!STRINGP (XCAR (color_desc
))
978 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
979 && !NILP (Ffboundp (Qtty_color_standard_values
)))
981 /* Look up STD_COLOR separately. */
982 rgb
= call1 (Qtty_color_standard_values
, color
);
983 if (! parse_rgb_list (rgb
, std_color
))
990 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
991 /* We were called early during startup, and the colors are not
992 yet set up in tty-defined-color-alist. Don't return a failure
993 indication, since this produces the annoying "Unable to
994 load color" messages in the *Messages* buffer. */
997 /* tty-color-desc seems to have returned a bad value. */
1001 /* A version of defined_color for non-X frames. */
1004 tty_defined_color (struct frame
*f
, const char *color_name
,
1005 XColor
*color_def
, bool alloc
)
1010 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1012 color_def
->blue
= 0;
1013 color_def
->green
= 0;
1016 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1018 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1020 if (strcmp (color_name
, "unspecified-fg") == 0)
1021 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1022 else if (strcmp (color_name
, "unspecified-bg") == 0)
1023 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1026 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1033 /* Decide if color named COLOR_NAME is valid for the display
1034 associated with the frame F; if so, return the rgb values in
1035 COLOR_DEF. If ALLOC, allocate a new colormap cell.
1037 This does the right thing for any type of frame. */
1040 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
1043 if (!FRAME_WINDOW_P (f
))
1044 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1045 #ifdef HAVE_X_WINDOWS
1046 else if (FRAME_X_P (f
))
1047 return x_defined_color (f
, color_name
, color_def
, alloc
);
1050 else if (FRAME_W32_P (f
))
1051 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1054 else if (FRAME_NS_P (f
))
1055 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1062 /* Given the index IDX of a tty color on frame F, return its name, a
1066 tty_color_name (struct frame
*f
, int idx
)
1068 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1071 Lisp_Object coldesc
;
1073 XSETFRAME (frame
, f
);
1074 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1076 if (!NILP (coldesc
))
1077 return XCAR (coldesc
);
1080 /* We can have an MSDOG frame under -nw for a short window of
1081 opportunity before internal_terminal_init is called. DTRT. */
1082 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1083 return msdos_stdcolor_name (idx
);
1086 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1087 return build_string (unspecified_fg
);
1088 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1089 return build_string (unspecified_bg
);
1091 return Qunspecified
;
1095 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1098 The criterion implemented here is not a terribly sophisticated one. */
1101 face_color_gray_p (struct frame
*f
, const char *color_name
)
1106 if (defined_color (f
, color_name
, &color
, 0))
1107 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1108 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1110 ((eabs (color
.red
- color
.green
)
1111 < max (color
.red
, color
.green
) / 20)
1112 && (eabs (color
.green
- color
.blue
)
1113 < max (color
.green
, color
.blue
) / 20)
1114 && (eabs (color
.blue
- color
.red
)
1115 < max (color
.blue
, color
.red
) / 20)));
1123 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1124 BACKGROUND_P non-zero means the color will be used as background
1128 face_color_supported_p (struct frame
*f
, const char *color_name
,
1134 XSETFRAME (frame
, f
);
1136 #ifdef HAVE_WINDOW_SYSTEM
1138 ? (!NILP (Fxw_display_color_p (frame
))
1139 || xstrcasecmp (color_name
, "black") == 0
1140 || xstrcasecmp (color_name
, "white") == 0
1142 && face_color_gray_p (f
, color_name
))
1143 || (!NILP (Fx_display_grayscale_p (frame
))
1144 && face_color_gray_p (f
, color_name
)))
1147 tty_defined_color (f
, color_name
, ¬_used
, 0);
1151 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1152 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1153 FRAME specifies the frame and thus the display for interpreting COLOR.
1154 If FRAME is nil or omitted, use the selected frame. */)
1155 (Lisp_Object color
, Lisp_Object frame
)
1157 CHECK_STRING (color
);
1158 return (face_color_gray_p (decode_any_frame (frame
), SSDATA (color
))
1163 DEFUN ("color-supported-p", Fcolor_supported_p
,
1164 Scolor_supported_p
, 1, 3, 0,
1165 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1166 BACKGROUND-P non-nil means COLOR is used as a background.
1167 Otherwise, this function tells whether it can be used as a foreground.
1168 If FRAME is nil or omitted, use the selected frame.
1169 COLOR must be a valid color name. */)
1170 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1172 CHECK_STRING (color
);
1173 return (face_color_supported_p (decode_any_frame (frame
),
1174 SSDATA (color
), !NILP (background_p
))
1179 /* Load color with name NAME for use by face FACE on frame F.
1180 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1181 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1182 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1183 pixel color. If color cannot be loaded, display a message, and
1184 return the foreground, background or underline color of F, but
1185 record that fact in flags of the face so that we don't try to free
1192 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1193 enum lface_attribute_index target_index
)
1197 eassert (STRINGP (name
));
1198 eassert (target_index
== LFACE_FOREGROUND_INDEX
1199 || target_index
== LFACE_BACKGROUND_INDEX
1200 || target_index
== LFACE_UNDERLINE_INDEX
1201 || target_index
== LFACE_OVERLINE_INDEX
1202 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1203 || target_index
== LFACE_BOX_INDEX
);
1205 /* if the color map is full, defined_color will return a best match
1206 to the values in an existing cell. */
1207 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1209 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1211 switch (target_index
)
1213 case LFACE_FOREGROUND_INDEX
:
1214 face
->foreground_defaulted_p
= 1;
1215 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1218 case LFACE_BACKGROUND_INDEX
:
1219 face
->background_defaulted_p
= 1;
1220 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1223 case LFACE_UNDERLINE_INDEX
:
1224 face
->underline_defaulted_p
= 1;
1225 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1228 case LFACE_OVERLINE_INDEX
:
1229 face
->overline_color_defaulted_p
= 1;
1230 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1233 case LFACE_STRIKE_THROUGH_INDEX
:
1234 face
->strike_through_color_defaulted_p
= 1;
1235 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1238 case LFACE_BOX_INDEX
:
1239 face
->box_color_defaulted_p
= 1;
1240 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1249 ++ncolors_allocated
;
1256 #ifdef HAVE_WINDOW_SYSTEM
1258 /* Load colors for face FACE which is used on frame F. Colors are
1259 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1260 of ATTRS. If the background color specified is not supported on F,
1261 try to emulate gray colors with a stipple from Vface_default_stipple. */
1264 load_face_colors (struct frame
*f
, struct face
*face
,
1265 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1269 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1270 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1272 /* Swap colors if face is inverse-video. */
1273 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1281 /* Check for support for foreground, not for background because
1282 face_color_supported_p is smart enough to know that grays are
1283 "supported" as background because we are supposed to use stipple
1285 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1286 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1288 x_destroy_bitmap (f
, face
->stipple
);
1289 face
->stipple
= load_pixmap (f
, Vface_default_stipple
);
1292 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1293 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1297 /* Free color PIXEL on frame F. */
1300 unload_color (struct frame
*f
, long unsigned int pixel
)
1302 #ifdef HAVE_X_WINDOWS
1306 x_free_colors (f
, &pixel
, 1);
1313 /* Free colors allocated for FACE. */
1316 free_face_colors (struct frame
*f
, struct face
*face
)
1318 /* PENDING(NS): need to do something here? */
1319 #ifdef HAVE_X_WINDOWS
1320 if (face
->colors_copied_bitwise_p
)
1325 if (!face
->foreground_defaulted_p
)
1327 x_free_colors (f
, &face
->foreground
, 1);
1328 IF_DEBUG (--ncolors_allocated
);
1331 if (!face
->background_defaulted_p
)
1333 x_free_colors (f
, &face
->background
, 1);
1334 IF_DEBUG (--ncolors_allocated
);
1337 if (face
->underline_p
1338 && !face
->underline_defaulted_p
)
1340 x_free_colors (f
, &face
->underline_color
, 1);
1341 IF_DEBUG (--ncolors_allocated
);
1344 if (face
->overline_p
1345 && !face
->overline_color_defaulted_p
)
1347 x_free_colors (f
, &face
->overline_color
, 1);
1348 IF_DEBUG (--ncolors_allocated
);
1351 if (face
->strike_through_p
1352 && !face
->strike_through_color_defaulted_p
)
1354 x_free_colors (f
, &face
->strike_through_color
, 1);
1355 IF_DEBUG (--ncolors_allocated
);
1358 if (face
->box
!= FACE_NO_BOX
1359 && !face
->box_color_defaulted_p
)
1361 x_free_colors (f
, &face
->box_color
, 1);
1362 IF_DEBUG (--ncolors_allocated
);
1366 #endif /* HAVE_X_WINDOWS */
1369 #endif /* HAVE_WINDOW_SYSTEM */
1373 /***********************************************************************
1375 ***********************************************************************/
1377 /* An enumerator for each field of an XLFD font name. */
1398 /* An enumerator for each possible slant value of a font. Taken from
1399 the XLFD specification. */
1407 XLFD_SLANT_REVERSE_ITALIC
,
1408 XLFD_SLANT_REVERSE_OBLIQUE
,
1412 /* Relative font weight according to XLFD documentation. */
1416 XLFD_WEIGHT_UNKNOWN
,
1417 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1418 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1419 XLFD_WEIGHT_LIGHT
, /* 30 */
1420 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1421 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1422 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1423 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1424 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1425 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1428 /* Relative proportionate width. */
1432 XLFD_SWIDTH_UNKNOWN
,
1433 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1434 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1435 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1436 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1437 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1438 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1439 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1440 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1441 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1444 /* Order by which font selection chooses fonts. The default values
1445 mean `first, find a best match for the font width, then for the
1446 font height, then for weight, then for slant.' This variable can be
1447 set via set-face-font-sort-order. */
1449 static int font_sort_order
[4];
1451 #ifdef HAVE_WINDOW_SYSTEM
1453 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1456 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1458 Lisp_Object
const *p1
= v1
;
1459 Lisp_Object
const *p2
= v2
;
1460 Lisp_Object font1
= *p1
;
1461 Lisp_Object font2
= *p2
;
1464 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1466 enum font_property_index idx
= font_props_for_sorting
[i
];
1467 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1470 if (idx
<= FONT_REGISTRY_INDEX
)
1473 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1475 result
= STRINGP (val2
) ? 1 : 0;
1479 if (INTEGERP (val1
))
1480 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1481 ? XINT (val1
) > XINT (val2
)
1484 result
= INTEGERP (val2
) ? 1 : 0;
1492 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1493 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1494 If FAMILY is omitted or nil, list all families.
1495 Otherwise, FAMILY must be a string, possibly containing wildcards
1497 If FRAME is omitted or nil, use the selected frame.
1498 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1499 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1500 FAMILY is the font family name. POINT-SIZE is the size of the
1501 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1502 width, weight and slant of the font. These symbols are the same as for
1503 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1504 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1505 giving the registry and encoding of the font.
1506 The result list is sorted according to the current setting of
1507 the face font sort order. */)
1508 (Lisp_Object family
, Lisp_Object frame
)
1510 Lisp_Object font_spec
, list
, *drivers
, vec
;
1511 struct frame
*f
= decode_live_frame (frame
);
1512 ptrdiff_t i
, nfonts
;
1517 font_spec
= Ffont_spec (0, NULL
);
1520 CHECK_STRING (family
);
1521 font_parse_family_registry (family
, Qnil
, font_spec
);
1524 list
= font_list_entities (f
, font_spec
);
1528 /* Sort the font entities. */
1529 for (i
= 0; i
< 4; i
++)
1530 switch (font_sort_order
[i
])
1533 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1534 case XLFD_POINT_SIZE
:
1535 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1537 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1539 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1541 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1542 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1543 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1544 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1546 ndrivers
= XINT (Flength (list
));
1547 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1548 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1549 drivers
[i
] = XCAR (list
);
1550 vec
= Fvconcat (ndrivers
, drivers
);
1551 nfonts
= ASIZE (vec
);
1553 qsort (XVECTOR (vec
)->u
.contents
, nfonts
, word_size
,
1554 compare_fonts_by_sort_order
);
1557 for (i
= nfonts
- 1; i
>= 0; --i
)
1559 Lisp_Object font
= AREF (vec
, i
);
1560 Lisp_Object v
= make_uninit_vector (8);
1562 Lisp_Object spacing
;
1564 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1565 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1566 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1568 ASET (v
, 2, make_number (point
));
1569 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1570 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1571 spacing
= Ffont_get (font
, QCspacing
);
1572 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1573 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1574 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1576 result
= Fcons (v
, result
);
1583 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1584 doc
: /* Return a list of the names of available fonts matching PATTERN.
1585 If optional arguments FACE and FRAME are specified, return only fonts
1586 the same size as FACE on FRAME.
1588 PATTERN should be a string containing a font name in the XLFD,
1589 Fontconfig, or GTK format. A font name given in the XLFD format may
1590 contain wildcard characters:
1591 the * character matches any substring, and
1592 the ? character matches any single character.
1593 PATTERN is case-insensitive.
1595 The return value is a list of strings, suitable as arguments to
1598 Fonts Emacs can't use may or may not be excluded
1599 even if they match PATTERN and FACE.
1600 The optional fourth argument MAXIMUM sets a limit on how many
1601 fonts to match. The first MAXIMUM fonts are reported.
1602 The optional fifth argument WIDTH, if specified, is a number of columns
1603 occupied by a character of a font. In that case, return only fonts
1604 the WIDTH times as wide as FACE on FRAME. */)
1605 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1606 Lisp_Object maximum
, Lisp_Object width
)
1609 int size
, avgwidth
IF_LINT (= 0);
1611 check_window_system (NULL
);
1612 CHECK_STRING (pattern
);
1614 if (! NILP (maximum
))
1615 CHECK_NATNUM (maximum
);
1618 CHECK_NUMBER (width
);
1620 /* We can't simply call decode_window_system_frame because
1621 this function may be called before any frame is created. */
1622 f
= decode_live_frame (frame
);
1623 if (! FRAME_WINDOW_P (f
))
1625 /* Perhaps we have not yet created any frame. */
1631 XSETFRAME (frame
, f
);
1633 /* Determine the width standard for comparison with the fonts we find. */
1639 /* This is of limited utility since it works with character
1640 widths. Keep it for compatibility. --gerd. */
1641 int face_id
= lookup_named_face (f
, face
, 0);
1642 struct face
*width_face
= (face_id
< 0
1644 : FACE_FROM_ID (f
, face_id
));
1646 if (width_face
&& width_face
->font
)
1648 size
= width_face
->font
->pixel_size
;
1649 avgwidth
= width_face
->font
->average_width
;
1653 size
= FRAME_FONT (f
)->pixel_size
;
1654 avgwidth
= FRAME_FONT (f
)->average_width
;
1657 avgwidth
*= XINT (width
);
1661 Lisp_Object font_spec
;
1662 Lisp_Object args
[2], tail
;
1664 font_spec
= font_spec_from_name (pattern
);
1665 if (!FONTP (font_spec
))
1666 signal_error ("Invalid font name", pattern
);
1670 Ffont_put (font_spec
, QCsize
, make_number (size
));
1671 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1673 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1674 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1676 Lisp_Object font_entity
;
1678 font_entity
= XCAR (tail
);
1679 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1680 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1681 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1683 /* This is a scalable font. For backward compatibility,
1684 we set the specified size. */
1685 font_entity
= copy_font_spec (font_entity
);
1686 ASET (font_entity
, FONT_SIZE_INDEX
,
1687 AREF (font_spec
, FONT_SIZE_INDEX
));
1689 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1692 /* We don't have to check fontsets. */
1694 args
[1] = list_fontsets (f
, pattern
, size
);
1695 return Fnconc (2, args
);
1699 #endif /* HAVE_WINDOW_SYSTEM */
1702 /***********************************************************************
1704 ***********************************************************************/
1706 /* Access face attributes of face LFACE, a Lisp vector. */
1708 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1709 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1710 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1711 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1712 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1713 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1714 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1715 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1716 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1717 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1718 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1719 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1720 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1721 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1722 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1723 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1724 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1726 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1727 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1729 #define LFACEP(LFACE) \
1731 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1732 && EQ (AREF (LFACE, 0), Qface))
1737 /* Check consistency of Lisp face attribute vector ATTRS. */
1740 check_lface_attrs (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1742 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1743 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1744 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1745 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1746 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1747 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1748 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1749 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1750 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1751 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1752 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1753 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1754 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1755 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1756 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1757 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1758 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1759 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1760 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1761 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1762 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1763 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1764 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1765 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1766 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1767 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1768 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1769 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1770 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1771 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1772 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1773 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1774 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1775 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1776 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1777 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1778 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1779 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1780 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1781 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1782 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1783 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1784 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1785 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1786 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1787 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1788 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1789 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1790 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1791 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1792 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1793 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1794 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1795 #ifdef HAVE_WINDOW_SYSTEM
1796 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1797 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1798 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1799 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1800 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1801 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1802 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1803 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1804 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1805 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1810 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1813 check_lface (Lisp_Object lface
)
1817 eassert (LFACEP (lface
));
1818 check_lface_attrs (XVECTOR (lface
)->u
.contents
);
1822 #else /* not GLYPH_DEBUG */
1824 #define check_lface_attrs(attrs) (void) 0
1825 #define check_lface(lface) (void) 0
1827 #endif /* GLYPH_DEBUG */
1831 /* Face-merge cycle checking. */
1833 enum named_merge_point_kind
1835 NAMED_MERGE_POINT_NORMAL
,
1836 NAMED_MERGE_POINT_REMAP
1839 /* A `named merge point' is simply a point during face-merging where we
1840 look up a face by name. We keep a stack of which named lookups we're
1841 currently processing so that we can easily detect cycles, using a
1842 linked- list of struct named_merge_point structures, typically
1843 allocated on the stack frame of the named lookup functions which are
1844 active (so no consing is required). */
1845 struct named_merge_point
1847 Lisp_Object face_name
;
1848 enum named_merge_point_kind named_merge_point_kind
;
1849 struct named_merge_point
*prev
;
1853 /* If a face merging cycle is detected for FACE_NAME, return 0,
1854 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1855 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1856 pointed to by NAMED_MERGE_POINTS, and return 1. */
1859 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1860 Lisp_Object face_name
,
1861 enum named_merge_point_kind named_merge_point_kind
,
1862 struct named_merge_point
**named_merge_points
)
1864 struct named_merge_point
*prev
;
1866 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1867 if (EQ (face_name
, prev
->face_name
))
1869 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1870 /* A cycle, so fail. */
1872 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1873 /* A remap `hides ' any previous normal merge points
1874 (because the remap means that it's actually different face),
1875 so as we know the current merge point must be normal, we
1876 can just assume it's OK. */
1880 new_named_merge_point
->face_name
= face_name
;
1881 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1882 new_named_merge_point
->prev
= *named_merge_points
;
1884 *named_merge_points
= new_named_merge_point
;
1890 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1891 to make it a symbol. If FACE_NAME is an alias for another face,
1892 return that face's name.
1894 Return default face in case of errors. */
1897 resolve_face_name (Lisp_Object face_name
, int signal_p
)
1899 Lisp_Object orig_face
;
1900 Lisp_Object tortoise
, hare
;
1902 if (STRINGP (face_name
))
1903 face_name
= intern (SSDATA (face_name
));
1905 if (NILP (face_name
) || !SYMBOLP (face_name
))
1908 orig_face
= face_name
;
1909 tortoise
= hare
= face_name
;
1914 hare
= Fget (hare
, Qface_alias
);
1915 if (NILP (hare
) || !SYMBOLP (hare
))
1919 hare
= Fget (hare
, Qface_alias
);
1920 if (NILP (hare
) || !SYMBOLP (hare
))
1923 tortoise
= Fget (tortoise
, Qface_alias
);
1924 if (EQ (hare
, tortoise
))
1927 xsignal1 (Qcircular_list
, orig_face
);
1936 /* Return the face definition of FACE_NAME on frame F. F null means
1937 return the definition for new frames. FACE_NAME may be a string or
1938 a symbol (apparently Emacs 20.2 allowed strings as face names in
1939 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
1940 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
1941 is zero, value is nil if FACE_NAME is not a valid face name. */
1943 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
1949 lface
= assq_no_quit (face_name
, f
->face_alist
);
1951 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
1954 lface
= XCDR (lface
);
1956 signal_error ("Invalid face", face_name
);
1958 check_lface (lface
);
1963 /* Return the face definition of FACE_NAME on frame F. F null means
1964 return the definition for new frames. FACE_NAME may be a string or
1965 a symbol (apparently Emacs 20.2 allowed strings as face names in
1966 face text properties; Ediff uses that). If FACE_NAME is an alias
1967 for another face, return that face's definition. If SIGNAL_P is
1968 non-zero, signal an error if FACE_NAME is not a valid face name.
1969 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
1972 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
1974 face_name
= resolve_face_name (face_name
, signal_p
);
1975 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1979 /* Get face attributes of face FACE_NAME from frame-local faces on
1980 frame F. Store the resulting attributes in ATTRS which must point
1981 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
1982 is non-zero, signal an error if FACE_NAME does not name a face.
1983 Otherwise, value is zero if FACE_NAME is not a face. */
1986 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
1987 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
1992 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1995 memcpy (attrs
, XVECTOR (lface
)->u
.contents
,
1996 LFACE_VECTOR_SIZE
* sizeof *attrs
);
1998 return !NILP (lface
);
2001 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2002 F. Store the resulting attributes in ATTRS which must point to a
2003 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2004 alias for another face, use that face's definition. If SIGNAL_P is
2005 non-zero, signal an error if FACE_NAME does not name a face.
2006 Otherwise, value is zero if FACE_NAME is not a face. */
2009 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
2010 Lisp_Object attrs
[LFACE_VECTOR_SIZE
], int signal_p
,
2011 struct named_merge_point
*named_merge_points
)
2013 Lisp_Object face_remapping
;
2015 face_name
= resolve_face_name (face_name
, signal_p
);
2017 /* See if SYMBOL has been remapped to some other face (usually this
2018 is done buffer-locally). */
2019 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2020 if (CONSP (face_remapping
))
2022 struct named_merge_point named_merge_point
;
2024 if (push_named_merge_point (&named_merge_point
,
2025 face_name
, NAMED_MERGE_POINT_REMAP
,
2026 &named_merge_points
))
2030 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2031 attrs
[i
] = Qunspecified
;
2033 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2034 signal_p
, named_merge_points
);
2038 /* Default case, no remapping. */
2039 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2043 /* Non-zero if all attributes in face attribute vector ATTRS are
2044 specified, i.e. are non-nil. */
2047 lface_fully_specified_p (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
2051 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2052 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2053 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2056 return i
== LFACE_VECTOR_SIZE
;
2059 #ifdef HAVE_WINDOW_SYSTEM
2061 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2062 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2063 exception is `font' attribute. It is set to FONT_OBJECT regardless
2067 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
2068 Lisp_Object font_object
, int force_p
)
2071 struct font
*font
= XFONT_OBJECT (font_object
);
2073 /* Set attributes only if unspecified, otherwise face defaults for
2074 new frames would never take effect. If the font doesn't have a
2075 specific property, set a normal value for that. */
2077 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2079 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2081 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2084 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2086 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2088 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2091 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2093 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, FRAME_RES_Y (f
));
2096 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2099 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2101 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2102 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2104 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2106 val
= FONT_SLANT_FOR_FACE (font_object
);
2107 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2109 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2111 val
= FONT_WIDTH_FOR_FACE (font_object
);
2112 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2115 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2119 #endif /* HAVE_WINDOW_SYSTEM */
2122 /* Merges the face height FROM with the face height TO, and returns the
2123 merged height. If FROM is an invalid height, then INVALID is
2124 returned instead. FROM and TO may be either absolute face heights or
2125 `relative' heights; the returned value is always an absolute height
2126 unless both FROM and TO are relative. */
2129 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2131 Lisp_Object result
= invalid
;
2133 if (INTEGERP (from
))
2134 /* FROM is absolute, just use it as is. */
2136 else if (FLOATP (from
))
2137 /* FROM is a scale, use it to adjust TO. */
2140 /* relative X absolute => absolute */
2141 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2142 else if (FLOATP (to
))
2143 /* relative X relative => relative */
2144 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2145 else if (UNSPECIFIEDP (to
))
2148 else if (FUNCTIONP (from
))
2149 /* FROM is a function, which use to adjust TO. */
2151 /* Call function with current height as argument.
2152 From is the new height. */
2153 result
= safe_call1 (from
, to
);
2155 /* Ensure that if TO was absolute, so is the result. */
2156 if (INTEGERP (to
) && !INTEGERP (result
))
2164 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2165 store the resulting attributes in TO, which must be already be
2166 completely specified and contain only absolute attributes. Every
2167 specified attribute of FROM overrides the corresponding attribute of
2168 TO; relative attributes in FROM are merged with the absolute value in
2169 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2170 loops in face inheritance/remapping; it should be 0 when called from
2174 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2175 struct named_merge_point
*named_merge_points
)
2178 Lisp_Object font
= Qnil
;
2180 /* If FROM inherits from some other faces, merge their attributes into
2181 TO before merging FROM's direct attributes. Note that an :inherit
2182 attribute of `unspecified' is the same as one of nil; we never
2183 merge :inherit attributes, so nil is more correct, but lots of
2184 other code uses `unspecified' as a generic value for face attributes. */
2185 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2186 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2187 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2189 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2191 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2192 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2194 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2195 to
[LFACE_FONT_INDEX
] = font
;
2198 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2199 if (!UNSPECIFIEDP (from
[i
]))
2201 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2203 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2204 font_clear_prop (to
, FONT_SIZE_INDEX
);
2206 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2209 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2210 font_clear_prop (to
,
2211 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2212 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2213 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2214 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2215 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2216 : FONT_SLANT_INDEX
));
2220 /* If FROM specifies a font spec, make its contents take precedence
2221 over :family and other attributes. This is needed for face
2222 remapping using :font to work. */
2226 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2227 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2228 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2229 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2230 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2231 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2232 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2233 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2234 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2235 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2236 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2239 /* TO is always an absolute face, which should inherit from nothing.
2240 We blindly copy the :inherit attribute above and fix it up here. */
2241 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2244 /* Merge the named face FACE_NAME on frame F, into the vector of face
2245 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2246 inheritance. Returns true if FACE_NAME is a valid face name and
2247 merging succeeded. */
2250 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2251 struct named_merge_point
*named_merge_points
)
2253 struct named_merge_point named_merge_point
;
2255 if (push_named_merge_point (&named_merge_point
,
2256 face_name
, NAMED_MERGE_POINT_NORMAL
,
2257 &named_merge_points
))
2259 struct gcpro gcpro1
;
2260 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2261 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2265 GCPRO1 (named_merge_point
.face_name
);
2266 merge_face_vectors (f
, from
, to
, named_merge_points
);
2277 /* Merge face attributes from the lisp `face reference' FACE_REF on
2278 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2279 problems with FACE_REF cause an error message to be shown. Return
2280 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2281 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2282 list structure; it may be 0 for most callers.
2284 FACE_REF may be a single face specification or a list of such
2285 specifications. Each face specification can be:
2287 1. A symbol or string naming a Lisp face.
2289 2. A property list of the form (KEYWORD VALUE ...) where each
2290 KEYWORD is a face attribute name, and value is an appropriate value
2293 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2294 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2295 for compatibility with 20.2.
2297 Face specifications earlier in lists take precedence over later
2301 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2302 int err_msgs
, struct named_merge_point
*named_merge_points
)
2304 int ok
= 1; /* Succeed without an error? */
2306 if (CONSP (face_ref
))
2308 Lisp_Object first
= XCAR (face_ref
);
2310 if (EQ (first
, Qforeground_color
)
2311 || EQ (first
, Qbackground_color
))
2313 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2314 . COLOR). COLOR must be a string. */
2315 Lisp_Object color_name
= XCDR (face_ref
);
2316 Lisp_Object color
= first
;
2318 if (STRINGP (color_name
))
2320 if (EQ (color
, Qforeground_color
))
2321 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2323 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2328 add_to_log ("Invalid face color", color_name
, Qnil
);
2332 else if (SYMBOLP (first
)
2333 && *SDATA (SYMBOL_NAME (first
)) == ':')
2335 /* Assume this is the property list form. */
2336 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2338 Lisp_Object keyword
= XCAR (face_ref
);
2339 Lisp_Object value
= XCAR (XCDR (face_ref
));
2342 /* Specifying `unspecified' is a no-op. */
2343 if (EQ (value
, Qunspecified
))
2345 else if (EQ (keyword
, QCfamily
))
2347 if (STRINGP (value
))
2349 to
[LFACE_FAMILY_INDEX
] = value
;
2350 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2355 else if (EQ (keyword
, QCfoundry
))
2357 if (STRINGP (value
))
2359 to
[LFACE_FOUNDRY_INDEX
] = value
;
2360 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2365 else if (EQ (keyword
, QCheight
))
2367 Lisp_Object new_height
=
2368 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2370 if (! NILP (new_height
))
2372 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2373 font_clear_prop (to
, FONT_SIZE_INDEX
);
2378 else if (EQ (keyword
, QCweight
))
2380 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2382 to
[LFACE_WEIGHT_INDEX
] = value
;
2383 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2388 else if (EQ (keyword
, QCslant
))
2390 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2392 to
[LFACE_SLANT_INDEX
] = value
;
2393 font_clear_prop (to
, FONT_SLANT_INDEX
);
2398 else if (EQ (keyword
, QCunderline
))
2404 to
[LFACE_UNDERLINE_INDEX
] = value
;
2408 else if (EQ (keyword
, QCoverline
))
2413 to
[LFACE_OVERLINE_INDEX
] = value
;
2417 else if (EQ (keyword
, QCstrike_through
))
2422 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2426 else if (EQ (keyword
, QCbox
))
2429 value
= make_number (1);
2430 if (INTEGERP (value
)
2434 to
[LFACE_BOX_INDEX
] = value
;
2438 else if (EQ (keyword
, QCinverse_video
)
2439 || EQ (keyword
, QCreverse_video
))
2441 if (EQ (value
, Qt
) || NILP (value
))
2442 to
[LFACE_INVERSE_INDEX
] = value
;
2446 else if (EQ (keyword
, QCforeground
))
2448 if (STRINGP (value
))
2449 to
[LFACE_FOREGROUND_INDEX
] = value
;
2453 else if (EQ (keyword
, QCbackground
))
2455 if (STRINGP (value
))
2456 to
[LFACE_BACKGROUND_INDEX
] = value
;
2460 else if (EQ (keyword
, QCstipple
))
2462 #if defined (HAVE_WINDOW_SYSTEM)
2463 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2464 if (!NILP (pixmap_p
))
2465 to
[LFACE_STIPPLE_INDEX
] = value
;
2468 #endif /* HAVE_WINDOW_SYSTEM */
2470 else if (EQ (keyword
, QCwidth
))
2472 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2474 to
[LFACE_SWIDTH_INDEX
] = value
;
2475 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2480 else if (EQ (keyword
, QCfont
))
2483 to
[LFACE_FONT_INDEX
] = value
;
2487 else if (EQ (keyword
, QCinherit
))
2489 /* This is not really very useful; it's just like a
2490 normal face reference. */
2491 if (! merge_face_ref (f
, value
, to
,
2492 err_msgs
, named_merge_points
))
2500 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2504 face_ref
= XCDR (XCDR (face_ref
));
2509 /* This is a list of face refs. Those at the beginning of the
2510 list take precedence over what follows, so we have to merge
2511 from the end backwards. */
2512 Lisp_Object next
= XCDR (face_ref
);
2515 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2517 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2523 /* FACE_REF ought to be a face name. */
2524 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2525 if (!ok
&& err_msgs
)
2526 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2533 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2534 Sinternal_make_lisp_face
, 1, 2, 0,
2535 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2536 If FACE was not known as a face before, create a new one.
2537 If optional argument FRAME is specified, make a frame-local face
2538 for that frame. Otherwise operate on the global face definition.
2539 Value is a vector of face attributes. */)
2540 (Lisp_Object face
, Lisp_Object frame
)
2542 Lisp_Object global_lface
, lface
;
2546 CHECK_SYMBOL (face
);
2547 global_lface
= lface_from_face_name (NULL
, face
, 0);
2551 CHECK_LIVE_FRAME (frame
);
2553 lface
= lface_from_face_name (f
, face
, 0);
2556 f
= NULL
, lface
= Qnil
;
2558 /* Add a global definition if there is none. */
2559 if (NILP (global_lface
))
2561 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2563 ASET (global_lface
, 0, Qface
);
2564 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2565 Vface_new_frame_defaults
);
2567 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2568 face id to Lisp face is given by the vector lface_id_to_name.
2569 The mapping from Lisp face to Lisp face id is given by the
2570 property `face' of the Lisp face name. */
2571 if (next_lface_id
== lface_id_to_name_size
)
2573 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2574 sizeof *lface_id_to_name
);
2576 lface_id_to_name
[next_lface_id
] = face
;
2577 Fput (face
, Qface
, make_number (next_lface_id
));
2581 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2582 ASET (global_lface
, i
, Qunspecified
);
2584 /* Add a frame-local definition. */
2589 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2591 ASET (lface
, 0, Qface
);
2592 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2595 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2596 ASET (lface
, i
, Qunspecified
);
2599 lface
= global_lface
;
2601 /* Changing a named face means that all realized faces depending on
2602 that face are invalid. Since we cannot tell which realized faces
2603 depend on the face, make sure they are all removed. This is done
2604 by incrementing face_change_count. The next call to
2605 init_iterator will then free realized faces. */
2606 if (NILP (Fget (face
, Qface_no_inherit
)))
2608 ++face_change_count
;
2609 ++windows_or_buffers_changed
;
2612 eassert (LFACEP (lface
));
2613 check_lface (lface
);
2618 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2619 Sinternal_lisp_face_p
, 1, 2, 0,
2620 doc
: /* Return non-nil if FACE names a face.
2621 FACE should be a symbol or string.
2622 If optional second argument FRAME is non-nil, check for the
2623 existence of a frame-local face with name FACE on that frame.
2624 Otherwise check for the existence of a global face. */)
2625 (Lisp_Object face
, Lisp_Object frame
)
2629 face
= resolve_face_name (face
, 1);
2633 CHECK_LIVE_FRAME (frame
);
2634 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2637 lface
= lface_from_face_name (NULL
, face
, 0);
2643 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2644 Sinternal_copy_lisp_face
, 4, 4, 0,
2645 doc
: /* Copy face FROM to TO.
2646 If FRAME is t, copy the global face definition of FROM.
2647 Otherwise, copy the frame-local definition of FROM on FRAME.
2648 If NEW-FRAME is a frame, copy that data into the frame-local
2649 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2650 FRAME controls where the data is copied to.
2652 The value is TO. */)
2653 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2655 Lisp_Object lface
, copy
;
2657 CHECK_SYMBOL (from
);
2662 /* Copy global definition of FROM. We don't make copies of
2663 strings etc. because 20.2 didn't do it either. */
2664 lface
= lface_from_face_name (NULL
, from
, 1);
2665 copy
= Finternal_make_lisp_face (to
, Qnil
);
2669 /* Copy frame-local definition of FROM. */
2670 if (NILP (new_frame
))
2672 CHECK_LIVE_FRAME (frame
);
2673 CHECK_LIVE_FRAME (new_frame
);
2674 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2675 copy
= Finternal_make_lisp_face (to
, new_frame
);
2678 vcopy (copy
, 0, XVECTOR (lface
)->u
.contents
, LFACE_VECTOR_SIZE
);
2680 /* Changing a named face means that all realized faces depending on
2681 that face are invalid. Since we cannot tell which realized faces
2682 depend on the face, make sure they are all removed. This is done
2683 by incrementing face_change_count. The next call to
2684 init_iterator will then free realized faces. */
2685 if (NILP (Fget (to
, Qface_no_inherit
)))
2687 ++face_change_count
;
2688 ++windows_or_buffers_changed
;
2695 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2696 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2697 doc
: /* Set attribute ATTR of FACE to VALUE.
2698 FRAME being a frame means change the face on that frame.
2699 FRAME nil means change the face of the selected frame.
2700 FRAME t means change the default for new frames.
2701 FRAME 0 means change the face on all frames, and change the default
2703 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2706 Lisp_Object old_value
= Qnil
;
2707 /* Set one of enum font_property_index (> 0) if ATTR is one of
2708 font-related attributes other than QCfont and QCfontset. */
2709 enum font_property_index prop_index
= 0;
2711 CHECK_SYMBOL (face
);
2712 CHECK_SYMBOL (attr
);
2714 face
= resolve_face_name (face
, 1);
2716 /* If FRAME is 0, change face on all frames, and change the
2717 default for new frames. */
2718 if (INTEGERP (frame
) && XINT (frame
) == 0)
2721 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2722 FOR_EACH_FRAME (tail
, frame
)
2723 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2727 /* Set lface to the Lisp attribute vector of FACE. */
2730 lface
= lface_from_face_name (NULL
, face
, 1);
2732 /* When updating face-new-frame-defaults, we put :ignore-defface
2733 where the caller wants `unspecified'. This forces the frame
2734 defaults to ignore the defface value. Otherwise, the defface
2735 will take effect, which is generally not what is intended.
2736 The value of that attribute will be inherited from some other
2737 face during face merging. See internal_merge_in_global_face. */
2738 if (UNSPECIFIEDP (value
))
2739 value
= QCignore_defface
;
2744 frame
= selected_frame
;
2746 CHECK_LIVE_FRAME (frame
);
2747 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2749 /* If a frame-local face doesn't exist yet, create one. */
2751 lface
= Finternal_make_lisp_face (face
, frame
);
2754 if (EQ (attr
, QCfamily
))
2756 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2758 CHECK_STRING (value
);
2759 if (SCHARS (value
) == 0)
2760 signal_error ("Invalid face family", value
);
2762 old_value
= LFACE_FAMILY (lface
);
2763 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2764 prop_index
= FONT_FAMILY_INDEX
;
2766 else if (EQ (attr
, QCfoundry
))
2768 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2770 CHECK_STRING (value
);
2771 if (SCHARS (value
) == 0)
2772 signal_error ("Invalid face foundry", value
);
2774 old_value
= LFACE_FOUNDRY (lface
);
2775 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2776 prop_index
= FONT_FOUNDRY_INDEX
;
2778 else if (EQ (attr
, QCheight
))
2780 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2782 if (EQ (face
, Qdefault
))
2784 /* The default face must have an absolute size. */
2785 if (!INTEGERP (value
) || XINT (value
) <= 0)
2786 signal_error ("Default face height not absolute and positive",
2791 /* For non-default faces, do a test merge with a random
2792 height to see if VALUE's ok. */
2793 Lisp_Object test
= merge_face_heights (value
,
2796 if (!INTEGERP (test
) || XINT (test
) <= 0)
2797 signal_error ("Face height does not produce a positive integer",
2802 old_value
= LFACE_HEIGHT (lface
);
2803 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2804 prop_index
= FONT_SIZE_INDEX
;
2806 else if (EQ (attr
, QCweight
))
2808 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2810 CHECK_SYMBOL (value
);
2811 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2812 signal_error ("Invalid face weight", value
);
2814 old_value
= LFACE_WEIGHT (lface
);
2815 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2816 prop_index
= FONT_WEIGHT_INDEX
;
2818 else if (EQ (attr
, QCslant
))
2820 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2822 CHECK_SYMBOL (value
);
2823 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2824 signal_error ("Invalid face slant", value
);
2826 old_value
= LFACE_SLANT (lface
);
2827 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2828 prop_index
= FONT_SLANT_INDEX
;
2830 else if (EQ (attr
, QCunderline
))
2834 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2836 else if (NILP (value
) || EQ (value
, Qt
))
2838 else if (STRINGP (value
) && SCHARS (value
) > 0)
2840 else if (CONSP (value
))
2842 Lisp_Object key
, val
, list
;
2845 /* FIXME? This errs on the side of acceptance. Eg it accepts:
2846 (defface foo '((t :underline 'foo) "doc")
2847 Maybe this is intentional, maybe it isn't.
2848 Non-nil symbols other than t are not documented as being valid.
2849 Eg compare with inverse-video, which explicitly rejects them.
2853 while (!NILP (CAR_SAFE(list
)))
2855 key
= CAR_SAFE (list
);
2856 list
= CDR_SAFE (list
);
2857 val
= CAR_SAFE (list
);
2858 list
= CDR_SAFE (list
);
2860 if (NILP (key
) || NILP (val
))
2866 else if (EQ (key
, QCcolor
)
2867 && !(EQ (val
, Qforeground_color
)
2868 || (STRINGP (val
) && SCHARS (val
) > 0)))
2874 else if (EQ (key
, QCstyle
)
2875 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2884 signal_error ("Invalid face underline", value
);
2886 old_value
= LFACE_UNDERLINE (lface
);
2887 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2889 else if (EQ (attr
, QCoverline
))
2891 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2892 if ((SYMBOLP (value
)
2894 && !EQ (value
, Qnil
))
2895 /* Overline color. */
2897 && SCHARS (value
) == 0))
2898 signal_error ("Invalid face overline", value
);
2900 old_value
= LFACE_OVERLINE (lface
);
2901 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2903 else if (EQ (attr
, QCstrike_through
))
2905 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2906 if ((SYMBOLP (value
)
2908 && !EQ (value
, Qnil
))
2909 /* Strike-through color. */
2911 && SCHARS (value
) == 0))
2912 signal_error ("Invalid face strike-through", value
);
2914 old_value
= LFACE_STRIKE_THROUGH (lface
);
2915 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2917 else if (EQ (attr
, QCbox
))
2921 /* Allow t meaning a simple box of width 1 in foreground color
2924 value
= make_number (1);
2926 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2928 else if (NILP (value
))
2930 else if (INTEGERP (value
))
2931 valid_p
= XINT (value
) != 0;
2932 else if (STRINGP (value
))
2933 valid_p
= SCHARS (value
) > 0;
2934 else if (CONSP (value
))
2950 if (EQ (k
, QCline_width
))
2952 if (!INTEGERP (v
) || XINT (v
) == 0)
2955 else if (EQ (k
, QCcolor
))
2957 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
2960 else if (EQ (k
, QCstyle
))
2962 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
2969 valid_p
= NILP (tem
);
2975 signal_error ("Invalid face box", value
);
2977 old_value
= LFACE_BOX (lface
);
2978 ASET (lface
, LFACE_BOX_INDEX
, value
);
2980 else if (EQ (attr
, QCinverse_video
)
2981 || EQ (attr
, QCreverse_video
))
2983 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2985 CHECK_SYMBOL (value
);
2986 if (!EQ (value
, Qt
) && !NILP (value
))
2987 signal_error ("Invalid inverse-video face attribute value", value
);
2989 old_value
= LFACE_INVERSE (lface
);
2990 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
2992 else if (EQ (attr
, QCforeground
))
2994 /* Compatibility with 20.x. */
2996 value
= Qunspecified
;
2997 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2999 /* Don't check for valid color names here because it depends
3000 on the frame (display) whether the color will be valid
3001 when the face is realized. */
3002 CHECK_STRING (value
);
3003 if (SCHARS (value
) == 0)
3004 signal_error ("Empty foreground color value", value
);
3006 old_value
= LFACE_FOREGROUND (lface
);
3007 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3009 else if (EQ (attr
, QCbackground
))
3011 /* Compatibility with 20.x. */
3013 value
= Qunspecified
;
3014 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3016 /* Don't check for valid color names here because it depends
3017 on the frame (display) whether the color will be valid
3018 when the face is realized. */
3019 CHECK_STRING (value
);
3020 if (SCHARS (value
) == 0)
3021 signal_error ("Empty background color value", value
);
3023 old_value
= LFACE_BACKGROUND (lface
);
3024 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3026 else if (EQ (attr
, QCstipple
))
3028 #if defined (HAVE_WINDOW_SYSTEM)
3029 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3031 && NILP (Fbitmap_spec_p (value
)))
3032 signal_error ("Invalid stipple attribute", value
);
3033 old_value
= LFACE_STIPPLE (lface
);
3034 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3035 #endif /* HAVE_WINDOW_SYSTEM */
3037 else if (EQ (attr
, QCwidth
))
3039 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3041 CHECK_SYMBOL (value
);
3042 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3043 signal_error ("Invalid face width", value
);
3045 old_value
= LFACE_SWIDTH (lface
);
3046 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3047 prop_index
= FONT_WIDTH_INDEX
;
3049 else if (EQ (attr
, QCfont
))
3051 #ifdef HAVE_WINDOW_SYSTEM
3052 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3054 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3058 old_value
= LFACE_FONT (lface
);
3059 if (! FONTP (value
))
3061 if (STRINGP (value
))
3063 Lisp_Object name
= value
;
3064 int fontset
= fs_query_fontset (name
, 0);
3067 name
= fontset_ascii (fontset
);
3068 value
= font_spec_from_name (name
);
3070 signal_error ("Invalid font name", name
);
3073 signal_error ("Invalid font or font-spec", value
);
3076 f
= XFRAME (selected_frame
);
3079 if (! FONT_OBJECT_P (value
))
3081 Lisp_Object
*attrs
= XVECTOR (lface
)->u
.contents
;
3082 Lisp_Object font_object
;
3084 font_object
= font_load_for_lface (f
, attrs
, value
);
3085 if (NILP (font_object
))
3086 signal_error ("Font not available", value
);
3087 value
= font_object
;
3089 set_lface_from_font (f
, lface
, value
, 1);
3092 ASET (lface
, LFACE_FONT_INDEX
, value
);
3094 #endif /* HAVE_WINDOW_SYSTEM */
3096 else if (EQ (attr
, QCfontset
))
3098 #ifdef HAVE_WINDOW_SYSTEM
3099 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3103 old_value
= LFACE_FONTSET (lface
);
3104 tmp
= Fquery_fontset (value
, Qnil
);
3106 signal_error ("Invalid fontset name", value
);
3107 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3109 #endif /* HAVE_WINDOW_SYSTEM */
3111 else if (EQ (attr
, QCinherit
))
3114 if (SYMBOLP (value
))
3117 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3118 if (!SYMBOLP (XCAR (tail
)))
3121 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3123 signal_error ("Invalid face inheritance", value
);
3125 else if (EQ (attr
, QCbold
))
3127 old_value
= LFACE_WEIGHT (lface
);
3128 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3129 prop_index
= FONT_WEIGHT_INDEX
;
3131 else if (EQ (attr
, QCitalic
))
3134 old_value
= LFACE_SLANT (lface
);
3135 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3136 prop_index
= FONT_SLANT_INDEX
;
3139 signal_error ("Invalid face attribute name", attr
);
3143 /* If a font-related attribute other than QCfont and QCfontset
3144 is specified, and if the original QCfont attribute has a font
3145 (font-spec or font-object), set the corresponding property in
3146 the font to nil so that the font selector doesn't think that
3147 the attribute is mandatory. Also, clear the average
3149 font_clear_prop (XVECTOR (lface
)->u
.contents
, prop_index
);
3152 /* Changing a named face means that all realized faces depending on
3153 that face are invalid. Since we cannot tell which realized faces
3154 depend on the face, make sure they are all removed. This is done
3155 by incrementing face_change_count. The next call to
3156 init_iterator will then free realized faces. */
3158 && NILP (Fget (face
, Qface_no_inherit
))
3159 && NILP (Fequal (old_value
, value
)))
3161 ++face_change_count
;
3162 ++windows_or_buffers_changed
;
3165 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3166 && NILP (Fequal (old_value
, value
)))
3172 if (EQ (face
, Qdefault
))
3174 #ifdef HAVE_WINDOW_SYSTEM
3175 /* Changed font-related attributes of the `default' face are
3176 reflected in changed `font' frame parameters. */
3178 && (prop_index
|| EQ (attr
, QCfont
))
3179 && lface_fully_specified_p (XVECTOR (lface
)->u
.contents
))
3180 set_font_frame_param (frame
, lface
);
3182 #endif /* HAVE_WINDOW_SYSTEM */
3184 if (EQ (attr
, QCforeground
))
3185 param
= Qforeground_color
;
3186 else if (EQ (attr
, QCbackground
))
3187 param
= Qbackground_color
;
3189 #ifdef HAVE_WINDOW_SYSTEM
3191 else if (EQ (face
, Qscroll_bar
))
3193 /* Changing the colors of `scroll-bar' sets frame parameters
3194 `scroll-bar-foreground' and `scroll-bar-background'. */
3195 if (EQ (attr
, QCforeground
))
3196 param
= Qscroll_bar_foreground
;
3197 else if (EQ (attr
, QCbackground
))
3198 param
= Qscroll_bar_background
;
3200 #endif /* not HAVE_NTGUI */
3201 else if (EQ (face
, Qborder
))
3203 /* Changing background color of `border' sets frame parameter
3205 if (EQ (attr
, QCbackground
))
3206 param
= Qborder_color
;
3208 else if (EQ (face
, Qcursor
))
3210 /* Changing background color of `cursor' sets frame parameter
3212 if (EQ (attr
, QCbackground
))
3213 param
= Qcursor_color
;
3215 else if (EQ (face
, Qmouse
))
3217 /* Changing background color of `mouse' sets frame parameter
3219 if (EQ (attr
, QCbackground
))
3220 param
= Qmouse_color
;
3222 #endif /* HAVE_WINDOW_SYSTEM */
3223 else if (EQ (face
, Qmenu
))
3225 /* Indicate that we have to update the menu bar when realizing
3226 faces on FRAME. FRAME t change the default for new frames.
3227 We do this by setting the flag in new face caches. */
3230 struct frame
*f
= XFRAME (frame
);
3231 if (FRAME_FACE_CACHE (f
) == NULL
)
3232 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3233 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3236 menu_face_changed_default
= 1;
3242 /* Update `default-frame-alist', which is used for new frames. */
3244 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3247 /* Update the current frame's parameters. */
3250 cons
= XCAR (Vparam_value_alist
);
3251 XSETCAR (cons
, param
);
3252 XSETCDR (cons
, value
);
3253 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3262 /* Update the corresponding face when frame parameter PARAM on frame F
3263 has been assigned the value NEW_VALUE. */
3266 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3267 Lisp_Object new_value
)
3269 Lisp_Object face
= Qnil
;
3272 /* If there are no faces yet, give up. This is the case when called
3273 from Fx_create_frame, and we do the necessary things later in
3274 face-set-after-frame-defaults. */
3275 if (NILP (f
->face_alist
))
3278 if (EQ (param
, Qforeground_color
))
3281 lface
= lface_from_face_name (f
, face
, 1);
3282 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3283 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3284 realize_basic_faces (f
);
3286 else if (EQ (param
, Qbackground_color
))
3290 /* Changing the background color might change the background
3291 mode, so that we have to load new defface specs.
3292 Call frame-set-background-mode to do that. */
3293 XSETFRAME (frame
, f
);
3294 call1 (Qframe_set_background_mode
, frame
);
3297 lface
= lface_from_face_name (f
, face
, 1);
3298 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3299 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3300 realize_basic_faces (f
);
3302 #ifdef HAVE_WINDOW_SYSTEM
3303 else if (EQ (param
, Qborder_color
))
3306 lface
= lface_from_face_name (f
, face
, 1);
3307 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3308 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3310 else if (EQ (param
, Qcursor_color
))
3313 lface
= lface_from_face_name (f
, face
, 1);
3314 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3315 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3317 else if (EQ (param
, Qmouse_color
))
3320 lface
= lface_from_face_name (f
, face
, 1);
3321 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3322 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3326 /* Changing a named face means that all realized faces depending on
3327 that face are invalid. Since we cannot tell which realized faces
3328 depend on the face, make sure they are all removed. This is done
3329 by incrementing face_change_count. The next call to
3330 init_iterator will then free realized faces. */
3332 && NILP (Fget (face
, Qface_no_inherit
)))
3334 ++face_change_count
;
3335 ++windows_or_buffers_changed
;
3340 #ifdef HAVE_WINDOW_SYSTEM
3342 /* Set the `font' frame parameter of FRAME determined from the
3343 font-object set in `default' face attributes LFACE. */
3346 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3348 struct frame
*f
= XFRAME (frame
);
3351 if (FRAME_WINDOW_P (f
)
3352 /* Don't do anything if the font is `unspecified'. This can
3353 happen during frame creation. */
3354 && (font
= LFACE_FONT (lface
),
3355 ! UNSPECIFIEDP (font
)))
3357 if (FONT_SPEC_P (font
))
3359 font
= font_load_for_lface (f
, XVECTOR (lface
)->u
.contents
, font
);
3362 ASET (lface
, LFACE_FONT_INDEX
, font
);
3364 f
->default_face_done_p
= 0;
3365 Fmodify_frame_parameters (frame
, list1 (Fcons (Qfont
, font
)));
3369 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3370 Sinternal_face_x_get_resource
, 2, 3, 0,
3371 doc
: /* Get the value of X resource RESOURCE, class CLASS.
3372 Returned value is for the display of frame FRAME. If FRAME is not
3373 specified or nil, use selected frame. This function exists because
3374 ordinary `x-get-resource' doesn't take a frame argument. */)
3375 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3377 Lisp_Object value
= Qnil
;
3380 CHECK_STRING (resource
);
3381 CHECK_STRING (class);
3382 f
= decode_live_frame (frame
);
3384 value
= display_x_get_resource (FRAME_DISPLAY_INFO (f
),
3385 resource
, class, Qnil
, Qnil
);
3391 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3392 If VALUE is "on" or "true", return t. If VALUE is "off" or
3393 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3394 error; if SIGNAL_P is zero, return 0. */
3397 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3399 Lisp_Object result
= make_number (0);
3401 eassert (STRINGP (value
));
3403 if (xstrcasecmp (SSDATA (value
), "on") == 0
3404 || xstrcasecmp (SSDATA (value
), "true") == 0)
3406 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3407 || xstrcasecmp (SSDATA (value
), "false") == 0)
3409 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3410 result
= Qunspecified
;
3412 signal_error ("Invalid face attribute value from X resource", value
);
3418 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3419 Finternal_set_lisp_face_attribute_from_resource
,
3420 Sinternal_set_lisp_face_attribute_from_resource
,
3421 3, 4, 0, doc
: /* */)
3422 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3424 CHECK_SYMBOL (face
);
3425 CHECK_SYMBOL (attr
);
3426 CHECK_STRING (value
);
3428 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3429 value
= Qunspecified
;
3430 else if (EQ (attr
, QCheight
))
3432 value
= Fstring_to_number (value
, make_number (10));
3433 if (XINT (value
) <= 0)
3434 signal_error ("Invalid face height from X resource", value
);
3436 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3437 value
= face_boolean_x_resource_value (value
, 1);
3438 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3439 value
= intern (SSDATA (value
));
3440 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3441 value
= face_boolean_x_resource_value (value
, 1);
3442 else if (EQ (attr
, QCunderline
)
3443 || EQ (attr
, QCoverline
)
3444 || EQ (attr
, QCstrike_through
))
3446 Lisp_Object boolean_value
;
3448 /* If the result of face_boolean_x_resource_value is t or nil,
3449 VALUE does NOT specify a color. */
3450 boolean_value
= face_boolean_x_resource_value (value
, 0);
3451 if (SYMBOLP (boolean_value
))
3452 value
= boolean_value
;
3454 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3455 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3457 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3460 #endif /* HAVE_WINDOW_SYSTEM */
3463 /***********************************************************************
3465 ***********************************************************************/
3467 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3469 /* Make menus on frame F appear as specified by the `menu' face. */
3472 x_update_menu_appearance (struct frame
*f
)
3474 struct x_display_info
*dpyinfo
= FRAME_DISPLAY_INFO (f
);
3478 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3483 ptrdiff_t bufsize
= sizeof line
;
3484 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3485 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3486 const char *myname
= SSDATA (Vx_resource_name
);
3489 const char *popup_path
= "popup_menu";
3491 const char *popup_path
= "menu.popup";
3494 if (STRINGP (LFACE_FOREGROUND (lface
)))
3496 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3498 SDATA (LFACE_FOREGROUND (lface
)));
3499 XrmPutLineResource (&rdb
, line
);
3500 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3501 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3502 XrmPutLineResource (&rdb
, line
);
3506 if (STRINGP (LFACE_BACKGROUND (lface
)))
3508 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3510 SDATA (LFACE_BACKGROUND (lface
)));
3511 XrmPutLineResource (&rdb
, line
);
3513 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3514 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3515 XrmPutLineResource (&rdb
, line
);
3520 /* On Solaris 5.8, it's been reported that the `menu' face
3521 can be unspecified here, during startup. Why this
3522 happens remains unknown. -- cyd */
3523 && FONTP (LFACE_FONT (lface
))
3524 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3525 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3526 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3527 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3528 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3529 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3531 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3533 const char *suffix
= "List";
3536 #if defined HAVE_X_I18N
3538 const char *suffix
= "Set";
3540 const char *suffix
= "";
3547 #if defined HAVE_X_I18N
3548 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3550 char *fontsetname
= SSDATA (xlfd
);
3552 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3553 myname
, suffix
, fontsetname
);
3554 XrmPutLineResource (&rdb
, line
);
3556 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3557 myname
, popup_path
, suffix
, fontsetname
);
3558 XrmPutLineResource (&rdb
, line
);
3560 if (fontsetname
!= SSDATA (xlfd
))
3561 xfree (fontsetname
);
3565 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3566 free_frame_menubar (f
);
3573 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3576 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3577 Sface_attribute_relative_p
,
3579 doc
: /* Check whether a face attribute value is relative.
3580 Specifically, this function returns t if the attribute ATTRIBUTE
3581 with the value VALUE is relative.
3583 A relative value is one that doesn't entirely override whatever is
3584 inherited from another face. For most possible attributes,
3585 the only relative value that users see is `unspecified'.
3586 However, for :height, floating point values are also relative. */)
3587 (Lisp_Object attribute
, Lisp_Object value
)
3589 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3591 else if (EQ (attribute
, QCheight
))
3592 return INTEGERP (value
) ? Qnil
: Qt
;
3597 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3599 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3600 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3601 the result will be absolute, otherwise it will be relative. */)
3602 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3604 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3606 else if (EQ (attribute
, QCheight
))
3607 return merge_face_heights (value1
, value2
, value1
);
3613 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3614 Sinternal_get_lisp_face_attribute
,
3616 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3617 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3618 face attribute name, signal an error.
3619 If the optional argument FRAME is given, report on face SYMBOL in that
3620 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3621 frames). If FRAME is omitted or nil, use the selected frame. */)
3622 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3624 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3625 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 1), value
= Qnil
;
3627 CHECK_SYMBOL (symbol
);
3628 CHECK_SYMBOL (keyword
);
3630 if (EQ (keyword
, QCfamily
))
3631 value
= LFACE_FAMILY (lface
);
3632 else if (EQ (keyword
, QCfoundry
))
3633 value
= LFACE_FOUNDRY (lface
);
3634 else if (EQ (keyword
, QCheight
))
3635 value
= LFACE_HEIGHT (lface
);
3636 else if (EQ (keyword
, QCweight
))
3637 value
= LFACE_WEIGHT (lface
);
3638 else if (EQ (keyword
, QCslant
))
3639 value
= LFACE_SLANT (lface
);
3640 else if (EQ (keyword
, QCunderline
))
3641 value
= LFACE_UNDERLINE (lface
);
3642 else if (EQ (keyword
, QCoverline
))
3643 value
= LFACE_OVERLINE (lface
);
3644 else if (EQ (keyword
, QCstrike_through
))
3645 value
= LFACE_STRIKE_THROUGH (lface
);
3646 else if (EQ (keyword
, QCbox
))
3647 value
= LFACE_BOX (lface
);
3648 else if (EQ (keyword
, QCinverse_video
)
3649 || EQ (keyword
, QCreverse_video
))
3650 value
= LFACE_INVERSE (lface
);
3651 else if (EQ (keyword
, QCforeground
))
3652 value
= LFACE_FOREGROUND (lface
);
3653 else if (EQ (keyword
, QCbackground
))
3654 value
= LFACE_BACKGROUND (lface
);
3655 else if (EQ (keyword
, QCstipple
))
3656 value
= LFACE_STIPPLE (lface
);
3657 else if (EQ (keyword
, QCwidth
))
3658 value
= LFACE_SWIDTH (lface
);
3659 else if (EQ (keyword
, QCinherit
))
3660 value
= LFACE_INHERIT (lface
);
3661 else if (EQ (keyword
, QCfont
))
3662 value
= LFACE_FONT (lface
);
3663 else if (EQ (keyword
, QCfontset
))
3664 value
= LFACE_FONTSET (lface
);
3666 signal_error ("Invalid face attribute name", keyword
);
3668 if (IGNORE_DEFFACE_P (value
))
3669 return Qunspecified
;
3675 DEFUN ("internal-lisp-face-attribute-values",
3676 Finternal_lisp_face_attribute_values
,
3677 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3678 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3679 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3682 Lisp_Object result
= Qnil
;
3684 CHECK_SYMBOL (attr
);
3686 if (EQ (attr
, QCunderline
) || EQ (attr
, QCoverline
)
3687 || EQ (attr
, QCstrike_through
)
3688 || EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3689 result
= list2 (Qt
, Qnil
);
3695 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3696 Sinternal_merge_in_global_face
, 2, 2, 0,
3697 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3698 Default face attributes override any local face attributes. */)
3699 (Lisp_Object face
, Lisp_Object frame
)
3702 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3703 struct frame
*f
= XFRAME (frame
);
3705 CHECK_LIVE_FRAME (frame
);
3706 global_lface
= lface_from_face_name (NULL
, face
, 1);
3707 local_lface
= lface_from_face_name (f
, face
, 0);
3708 if (NILP (local_lface
))
3709 local_lface
= Finternal_make_lisp_face (face
, frame
);
3711 /* Make every specified global attribute override the local one.
3712 BEWARE!! This is only used from `face-set-after-frame-default' where
3713 the local frame is defined from default specs in `face-defface-spec'
3714 and those should be overridden by global settings. Hence the strange
3715 "global before local" priority. */
3716 lvec
= XVECTOR (local_lface
)->u
.contents
;
3717 gvec
= XVECTOR (global_lface
)->u
.contents
;
3718 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3719 if (IGNORE_DEFFACE_P (gvec
[i
]))
3720 ASET (local_lface
, i
, Qunspecified
);
3721 else if (! UNSPECIFIEDP (gvec
[i
]))
3722 ASET (local_lface
, i
, AREF (global_lface
, i
));
3724 /* If the default face was changed, update the face cache and the
3725 `font' frame parameter. */
3726 if (EQ (face
, Qdefault
))
3728 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3729 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3730 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3732 /* This can be NULL (e.g., in batch mode). */
3735 /* Ensure that the face vector is fully specified by merging
3736 the previously-cached vector. */
3737 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3738 merge_face_vectors (f
, lvec
, attrs
, 0);
3739 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3740 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3742 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3743 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3744 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3745 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3746 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3747 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3748 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3751 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3752 Fmodify_frame_parameters (frame
, list1 (Fcons (Qfont
, name
)));
3755 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3756 Fmodify_frame_parameters (frame
,
3757 list1 (Fcons (Qforeground_color
,
3758 gvec
[LFACE_FOREGROUND_INDEX
])));
3760 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3761 Fmodify_frame_parameters (frame
,
3762 list1 (Fcons (Qbackground_color
,
3763 gvec
[LFACE_BACKGROUND_INDEX
])));
3771 /* The following function is implemented for compatibility with 20.2.
3772 The function is used in x-resolve-fonts when it is asked to
3773 return fonts with the same size as the font of a face. This is
3774 done in fontset.el. */
3776 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3777 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3778 The font name is, by default, for ASCII characters.
3779 If the optional argument FRAME is given, report on face FACE in that frame.
3780 If FRAME is t, report on the defaults for face FACE (for new frames).
3781 The font default for a face is either nil, or a list
3782 of the form (bold), (italic) or (bold italic).
3783 If FRAME is omitted or nil, use the selected frame. And, in this case,
3784 if the optional third argument CHARACTER is given,
3785 return the font name used for CHARACTER. */)
3786 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3790 Lisp_Object result
= Qnil
;
3791 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3793 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3794 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3795 result
= Fcons (Qbold
, result
);
3797 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3798 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3799 result
= Fcons (Qitalic
, result
);
3805 struct frame
*f
= decode_live_frame (frame
);
3806 int face_id
= lookup_named_face (f
, face
, 1);
3807 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3811 #ifdef HAVE_WINDOW_SYSTEM
3812 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3814 CHECK_CHARACTER (character
);
3815 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3816 fface
= FACE_FROM_ID (f
, face_id
);
3819 ? fface
->font
->props
[FONT_NAME_INDEX
]
3821 #else /* !HAVE_WINDOW_SYSTEM */
3822 return build_string (FRAME_MSDOS_P (f
)
3824 : FRAME_W32_P (f
) ? "w32term"
3831 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3832 all attributes are `equal'. Tries to be fast because this function
3833 is called quite often. */
3836 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3838 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3839 and the other is specified. */
3840 if (XTYPE (v1
) != XTYPE (v2
))
3849 if (SBYTES (v1
) != SBYTES (v2
))
3852 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3859 return !NILP (Fequal (v1
, v2
));
3864 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3865 all attributes are `equal'. Tries to be fast because this function
3866 is called quite often. */
3869 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3874 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3875 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3881 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3882 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3883 doc
: /* True if FACE1 and FACE2 are equal.
3884 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3885 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3886 If FRAME is omitted or nil, use the selected frame. */)
3887 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3891 Lisp_Object lface1
, lface2
;
3893 /* Don't use decode_window_system_frame here because this function
3894 is called before X frames exist. At that time, if FRAME is nil,
3895 selected_frame will be used which is the frame dumped with
3896 Emacs. That frame is not an X frame. */
3897 f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3899 lface1
= lface_from_face_name (f
, face1
, 1);
3900 lface2
= lface_from_face_name (f
, face2
, 1);
3901 equal_p
= lface_equal_p (XVECTOR (lface1
)->u
.contents
,
3902 XVECTOR (lface2
)->u
.contents
);
3903 return equal_p
? Qt
: Qnil
;
3907 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3908 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3909 doc
: /* True if FACE has no attribute specified.
3910 If the optional argument FRAME is given, report on face FACE in that frame.
3911 If FRAME is t, report on the defaults for face FACE (for new frames).
3912 If FRAME is omitted or nil, use the selected frame. */)
3913 (Lisp_Object face
, Lisp_Object frame
)
3915 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3916 Lisp_Object lface
= lface_from_face_name (f
, face
, 1);
3919 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3920 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3923 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3927 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
3929 doc
: /* Return an alist of frame-local faces defined on FRAME.
3930 For internal use only. */)
3933 return decode_live_frame (frame
)->face_alist
;
3937 /* Return a hash code for Lisp string STRING with case ignored. Used
3938 below in computing a hash value for a Lisp face. */
3941 hash_string_case_insensitive (Lisp_Object string
)
3943 const unsigned char *s
;
3945 eassert (STRINGP (string
));
3946 for (s
= SDATA (string
); *s
; ++s
)
3947 hash
= (hash
<< 1) ^ c_tolower (*s
);
3952 /* Return a hash code for face attribute vector V. */
3955 lface_hash (Lisp_Object
*v
)
3957 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
3958 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
3959 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
3960 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
3961 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
3962 ^ XHASH (v
[LFACE_SLANT_INDEX
])
3963 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
3964 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
3967 #ifdef HAVE_WINDOW_SYSTEM
3969 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
3970 considering charsets/registries). They do if they specify the same
3971 family, point size, weight, width, slant, and font. Both
3972 LFACE1 and LFACE2 must be fully-specified. */
3975 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
3977 eassert (lface_fully_specified_p (lface1
)
3978 && lface_fully_specified_p (lface2
));
3979 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
3980 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
3981 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
3982 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
3983 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
3984 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
3985 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
3986 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
3987 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
3988 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
3989 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
3990 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
3991 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
3992 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
3996 #endif /* HAVE_WINDOW_SYSTEM */
3998 /***********************************************************************
4000 ***********************************************************************/
4002 /* Allocate and return a new realized face for Lisp face attribute
4005 static struct face
*
4006 make_realized_face (Lisp_Object
*attr
)
4008 enum { off
= offsetof (struct face
, id
) };
4009 struct face
*face
= xmalloc (sizeof *face
);
4011 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4012 memset (&face
->id
, 0, sizeof *face
- off
);
4013 face
->ascii_face
= face
;
4019 /* Free realized face FACE, including its X resources. FACE may
4023 free_realized_face (struct frame
*f
, struct face
*face
)
4027 #ifdef HAVE_WINDOW_SYSTEM
4028 if (FRAME_WINDOW_P (f
))
4030 /* Free fontset of FACE if it is ASCII face. */
4031 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4032 free_face_fontset (f
, face
);
4037 font_done_for_face (f
, face
);
4038 x_free_gc (f
, face
->gc
);
4043 free_face_colors (f
, face
);
4044 x_destroy_bitmap (f
, face
->stipple
);
4046 #endif /* HAVE_WINDOW_SYSTEM */
4053 /* Prepare face FACE for subsequent display on frame F. This
4054 allocated GCs if they haven't been allocated yet or have been freed
4055 by clearing the face cache. */
4058 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4060 #ifdef HAVE_WINDOW_SYSTEM
4061 eassert (FRAME_WINDOW_P (f
));
4066 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4068 xgcv
.foreground
= face
->foreground
;
4069 xgcv
.background
= face
->background
;
4070 #ifdef HAVE_X_WINDOWS
4071 xgcv
.graphics_exposures
= False
;
4075 #ifdef HAVE_X_WINDOWS
4078 xgcv
.fill_style
= FillOpaqueStippled
;
4079 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4080 mask
|= GCFillStyle
| GCStipple
;
4083 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4085 font_prepare_for_face (f
, face
);
4088 #endif /* HAVE_WINDOW_SYSTEM */
4092 /* Returns the `distance' between the colors X and Y. */
4095 color_distance (XColor
*x
, XColor
*y
)
4097 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4098 Quoting from that paper:
4100 This formula has results that are very close to L*u*v* (with the
4101 modified lightness curve) and, more importantly, it is a more even
4102 algorithm: it does not have a range of colors where it suddenly
4103 gives far from optimal results.
4105 See <http://www.compuphase.com/cmetric.htm> for more info. */
4107 long r
= (x
->red
- y
->red
) >> 8;
4108 long g
= (x
->green
- y
->green
) >> 8;
4109 long b
= (x
->blue
- y
->blue
) >> 8;
4110 long r_mean
= (x
->red
+ y
->red
) >> 9;
4113 (((512 + r_mean
) * r
* r
) >> 8)
4115 + (((767 - r_mean
) * b
* b
) >> 8);
4119 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4120 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4121 COLOR1 and COLOR2 may be either strings containing the color name,
4122 or lists of the form (RED GREEN BLUE).
4123 If FRAME is unspecified or nil, the current frame is used. */)
4124 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4126 struct frame
*f
= decode_live_frame (frame
);
4127 XColor cdef1
, cdef2
;
4129 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4130 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4131 signal_error ("Invalid color", color1
);
4132 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4133 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4134 signal_error ("Invalid color", color2
);
4136 return make_number (color_distance (&cdef1
, &cdef2
));
4140 /***********************************************************************
4142 ***********************************************************************/
4144 /* Return a new face cache for frame F. */
4146 static struct face_cache
*
4147 make_face_cache (struct frame
*f
)
4149 struct face_cache
*c
= xmalloc (sizeof *c
);
4151 c
->buckets
= xzalloc (FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
);
4154 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4156 c
->menu_face_changed_p
= menu_face_changed_default
;
4160 #ifdef HAVE_WINDOW_SYSTEM
4162 /* Clear out all graphics contexts for all realized faces, except for
4163 the basic faces. This should be done from time to time just to avoid
4164 keeping too many graphics contexts that are no longer needed. */
4167 clear_face_gcs (struct face_cache
*c
)
4169 if (c
&& FRAME_WINDOW_P (c
->f
))
4172 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4174 struct face
*face
= c
->faces_by_id
[i
];
4175 if (face
&& face
->gc
)
4179 font_done_for_face (c
->f
, face
);
4180 x_free_gc (c
->f
, face
->gc
);
4188 #endif /* HAVE_WINDOW_SYSTEM */
4190 /* Free all realized faces in face cache C, including basic faces.
4191 C may be null. If faces are freed, make sure the frame's current
4192 matrix is marked invalid, so that a display caused by an expose
4193 event doesn't try to use faces we destroyed. */
4196 free_realized_faces (struct face_cache
*c
)
4201 struct frame
*f
= c
->f
;
4203 /* We must block input here because we can't process X events
4204 safely while only some faces are freed, or when the frame's
4205 current matrix still references freed faces. */
4208 for (i
= 0; i
< c
->used
; ++i
)
4210 free_realized_face (f
, c
->faces_by_id
[i
]);
4211 c
->faces_by_id
[i
] = NULL
;
4215 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4216 memset (c
->buckets
, 0, size
);
4218 /* Must do a thorough redisplay the next time. Mark current
4219 matrices as invalid because they will reference faces freed
4220 above. This function is also called when a frame is
4221 destroyed. In this case, the root window of F is nil. */
4222 if (WINDOWP (f
->root_window
))
4224 clear_current_matrices (f
);
4225 ++windows_or_buffers_changed
;
4233 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4234 This is done after attributes of a named face have been changed,
4235 because we can't tell which realized faces depend on that face. */
4238 free_all_realized_faces (Lisp_Object frame
)
4243 FOR_EACH_FRAME (rest
, frame
)
4244 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4247 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4251 /* Free face cache C and faces in it, including their X resources. */
4254 free_face_cache (struct face_cache
*c
)
4258 free_realized_faces (c
);
4260 xfree (c
->faces_by_id
);
4266 /* Cache realized face FACE in face cache C. HASH is the hash value
4267 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4268 FACE), insert the new face to the beginning of the collision list
4269 of the face hash table of C. Otherwise, add the new face to the
4270 end of the collision list. This way, lookup_face can quickly find
4271 that a requested face is not cached. */
4274 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4276 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4280 if (face
->ascii_face
!= face
)
4282 struct face
*last
= c
->buckets
[i
];
4293 c
->buckets
[i
] = face
;
4294 face
->prev
= face
->next
= NULL
;
4300 face
->next
= c
->buckets
[i
];
4302 face
->next
->prev
= face
;
4303 c
->buckets
[i
] = face
;
4306 /* Find a free slot in C->faces_by_id and use the index of the free
4307 slot as FACE->id. */
4308 for (i
= 0; i
< c
->used
; ++i
)
4309 if (c
->faces_by_id
[i
] == NULL
)
4314 /* Check that FACE got a unique id. */
4319 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4320 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4326 #endif /* GLYPH_DEBUG */
4328 /* Maybe enlarge C->faces_by_id. */
4331 if (c
->used
== c
->size
)
4332 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4333 sizeof *c
->faces_by_id
);
4337 c
->faces_by_id
[i
] = face
;
4341 /* Remove face FACE from cache C. */
4344 uncache_face (struct face_cache
*c
, struct face
*face
)
4346 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4349 face
->prev
->next
= face
->next
;
4351 c
->buckets
[i
] = face
->next
;
4354 face
->next
->prev
= face
->prev
;
4356 c
->faces_by_id
[face
->id
] = NULL
;
4357 if (face
->id
== c
->used
)
4362 /* Look up a realized face with face attributes ATTR in the face cache
4363 of frame F. The face will be used to display ASCII characters.
4364 Value is the ID of the face found. If no suitable face is found,
4365 realize a new one. */
4368 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4370 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4375 eassert (cache
!= NULL
);
4376 check_lface_attrs (attr
);
4378 /* Look up ATTR in the face cache. */
4379 hash
= lface_hash (attr
);
4380 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4382 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4384 if (face
->ascii_face
!= face
)
4386 /* There's no more ASCII face. */
4390 if (face
->hash
== hash
4391 && lface_equal_p (face
->lface
, attr
))
4395 /* If not found, realize a new face. */
4397 face
= realize_face (cache
, attr
, -1);
4400 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4401 #endif /* GLYPH_DEBUG */
4406 #ifdef HAVE_WINDOW_SYSTEM
4407 /* Look up a realized face that has the same attributes as BASE_FACE
4408 except for the font in the face cache of frame F. If FONT-OBJECT
4409 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4410 the face has no font. Value is the ID of the face found. If no
4411 suitable face is found, realize a new one. */
4414 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4416 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4421 eassert (cache
!= NULL
);
4422 base_face
= base_face
->ascii_face
;
4423 hash
= lface_hash (base_face
->lface
);
4424 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4426 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4428 if (face
->ascii_face
== face
)
4430 if (face
->ascii_face
== base_face
4431 && face
->font
== (NILP (font_object
) ? NULL
4432 : XFONT_OBJECT (font_object
))
4433 && lface_equal_p (face
->lface
, base_face
->lface
))
4437 /* If not found, realize a new face. */
4438 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4441 #endif /* HAVE_WINDOW_SYSTEM */
4443 /* Return the face id of the realized face for named face SYMBOL on
4444 frame F suitable for displaying ASCII characters. Value is -1 if
4445 the face couldn't be determined, which might happen if the default
4446 face isn't realized and cannot be realized. */
4449 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4451 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4452 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4453 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4455 if (default_face
== NULL
)
4457 if (!realize_basic_faces (f
))
4459 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4460 if (default_face
== NULL
)
4461 emacs_abort (); /* realize_basic_faces must have set it up */
4464 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4467 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4468 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4470 return lookup_face (f
, attrs
);
4474 /* Return the display face-id of the basic face whose canonical face-id
4475 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4476 basic face has bee remapped via Vface_remapping_alist. This function is
4477 conservative: if something goes wrong, it will simply return FACE_ID
4478 rather than signal an error. */
4481 lookup_basic_face (struct frame
*f
, int face_id
)
4483 Lisp_Object name
, mapping
;
4484 int remapped_face_id
;
4486 if (NILP (Vface_remapping_alist
))
4487 return face_id
; /* Nothing to do. */
4491 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4492 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4493 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4494 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4495 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4496 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4497 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4498 case BORDER_FACE_ID
: name
= Qborder
; break;
4499 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4500 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4501 case MENU_FACE_ID
: name
= Qmenu
; break;
4504 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4507 /* Do a quick scan through Vface_remapping_alist, and return immediately
4508 if there is no remapping for face NAME. This is just an optimization
4509 for the very common no-remapping case. */
4510 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4512 return face_id
; /* Give up. */
4514 /* If there is a remapping entry, lookup the face using NAME, which will
4515 handle the remapping too. */
4516 remapped_face_id
= lookup_named_face (f
, name
, 0);
4517 if (remapped_face_id
< 0)
4518 return face_id
; /* Give up. */
4520 return remapped_face_id
;
4524 /* Return a face for charset ASCII that is like the face with id
4525 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4526 STEPS < 0 means larger. Value is the id of the face. */
4529 smaller_face (struct frame
*f
, int face_id
, int steps
)
4531 #ifdef HAVE_WINDOW_SYSTEM
4533 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4534 int pt
, last_pt
, last_height
;
4537 struct face
*new_face
;
4539 /* If not called for an X frame, just return the original face. */
4540 if (FRAME_TERMCAP_P (f
))
4543 /* Try in increments of 1/2 pt. */
4544 delta
= steps
< 0 ? 5 : -5;
4545 steps
= eabs (steps
);
4547 face
= FACE_FROM_ID (f
, face_id
);
4548 memcpy (attrs
, face
->lface
, sizeof attrs
);
4549 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4550 new_face_id
= face_id
;
4551 last_height
= FONT_HEIGHT (face
->font
);
4555 /* Give up if we cannot find a font within 10pt. */
4556 && eabs (last_pt
- pt
) < 100)
4558 /* Look up a face for a slightly smaller/larger font. */
4560 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4561 new_face_id
= lookup_face (f
, attrs
);
4562 new_face
= FACE_FROM_ID (f
, new_face_id
);
4564 /* If height changes, count that as one step. */
4565 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4566 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4569 last_height
= FONT_HEIGHT (new_face
->font
);
4576 #else /* not HAVE_WINDOW_SYSTEM */
4580 #endif /* not HAVE_WINDOW_SYSTEM */
4584 /* Return a face for charset ASCII that is like the face with id
4585 FACE_ID on frame F, but has height HEIGHT. */
4588 face_with_height (struct frame
*f
, int face_id
, int height
)
4590 #ifdef HAVE_WINDOW_SYSTEM
4592 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4594 if (FRAME_TERMCAP_P (f
)
4598 face
= FACE_FROM_ID (f
, face_id
);
4599 memcpy (attrs
, face
->lface
, sizeof attrs
);
4600 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4601 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4602 face_id
= lookup_face (f
, attrs
);
4603 #endif /* HAVE_WINDOW_SYSTEM */
4609 /* Return the face id of the realized face for named face SYMBOL on
4610 frame F suitable for displaying ASCII characters, and use
4611 attributes of the face FACE_ID for attributes that aren't
4612 completely specified by SYMBOL. This is like lookup_named_face,
4613 except that the default attributes come from FACE_ID, not from the
4614 default face. FACE_ID is assumed to be already realized. */
4617 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4620 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4621 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4622 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4627 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4630 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4631 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4632 return lookup_face (f
, attrs
);
4635 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4636 Sface_attributes_as_vector
, 1, 1, 0,
4637 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4641 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4643 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->u
.contents
,
4650 /***********************************************************************
4651 Face capability testing
4652 ***********************************************************************/
4655 /* If the distance (as returned by color_distance) between two colors is
4656 less than this, then they are considered the same, for determining
4657 whether a color is supported or not. The range of values is 0-65535. */
4659 #define TTY_SAME_COLOR_THRESHOLD 10000
4661 #ifdef HAVE_WINDOW_SYSTEM
4663 /* Return non-zero if all the face attributes in ATTRS are supported
4664 on the window-system frame F.
4666 The definition of `supported' is somewhat heuristic, but basically means
4667 that a face containing all the attributes in ATTRS, when merged with the
4668 default face for display, can be represented in a way that's
4670 \(1) different in appearance than the default face, and
4671 \(2) `close in spirit' to what the attributes specify, if not exact. */
4674 x_supports_face_attributes_p (struct frame
*f
,
4675 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4676 struct face
*def_face
)
4678 Lisp_Object
*def_attrs
= def_face
->lface
;
4680 /* Check that other specified attributes are different that the default
4682 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4683 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4684 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4685 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4686 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4687 def_attrs
[LFACE_INVERSE_INDEX
]))
4688 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4689 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4690 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4691 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4692 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4693 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4694 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4695 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4696 def_attrs
[LFACE_STIPPLE_INDEX
]))
4697 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4698 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4699 def_attrs
[LFACE_OVERLINE_INDEX
]))
4700 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4701 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4702 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4703 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4704 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4705 def_attrs
[LFACE_BOX_INDEX
])))
4708 /* Check font-related attributes, as those are the most commonly
4709 "unsupported" on a window-system (because of missing fonts). */
4710 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4711 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4712 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4713 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4714 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4715 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4719 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4722 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4724 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4726 face_id
= lookup_face (f
, merged_attrs
);
4727 face
= FACE_FROM_ID (f
, face_id
);
4730 error ("Cannot make face");
4732 /* If the font is the same, or no font is found, then not
4734 if (face
->font
== def_face
->font
4737 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4738 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4742 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4743 || face
->font
->driver
->case_sensitive
)
4745 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4746 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4747 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4748 s2
, make_number (0), Qnil
, Qt
), Qt
))
4754 /* Everything checks out, this face is supported. */
4758 #endif /* HAVE_WINDOW_SYSTEM */
4760 /* Return non-zero if all the face attributes in ATTRS are supported
4763 The definition of `supported' is somewhat heuristic, but basically means
4764 that a face containing all the attributes in ATTRS, when merged
4765 with the default face for display, can be represented in a way that's
4767 \(1) different in appearance than the default face, and
4768 \(2) `close in spirit' to what the attributes specify, if not exact.
4770 Point (2) implies that a `:weight black' attribute will be satisfied
4771 by any terminal that can display bold, and a `:foreground "yellow"' as
4772 long as the terminal can display a yellowish color, but `:slant italic'
4773 will _not_ be satisfied by the tty display code's automatic
4774 substitution of a `dim' face for italic. */
4777 tty_supports_face_attributes_p (struct frame
*f
,
4778 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4779 struct face
*def_face
)
4782 Lisp_Object val
, fg
, bg
;
4783 XColor fg_tty_color
, fg_std_color
;
4784 XColor bg_tty_color
, bg_std_color
;
4785 unsigned test_caps
= 0;
4786 Lisp_Object
*def_attrs
= def_face
->lface
;
4788 /* First check some easy-to-check stuff; ttys support none of the
4789 following attributes, so we can just return false if any are requested
4790 (even if `nominal' values are specified, we should still return false,
4791 as that will be the same value that the default face uses). We
4792 consider :slant unsupportable on ttys, even though the face code
4793 actually `fakes' them using a dim attribute if possible. This is
4794 because the faked result is too different from what the face
4796 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4797 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4798 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4799 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4800 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4801 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4802 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4803 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4806 /* Test for terminal `capabilities' (non-color character attributes). */
4808 /* font weight (bold/dim) */
4809 val
= attrs
[LFACE_WEIGHT_INDEX
];
4810 if (!UNSPECIFIEDP (val
)
4811 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4813 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4817 if (def_weight
> 100)
4818 return 0; /* same as default */
4819 test_caps
= TTY_CAP_BOLD
;
4821 else if (weight
< 100)
4823 if (def_weight
< 100)
4824 return 0; /* same as default */
4825 test_caps
= TTY_CAP_DIM
;
4827 else if (def_weight
== 100)
4828 return 0; /* same as default */
4832 val
= attrs
[LFACE_SLANT_INDEX
];
4833 if (!UNSPECIFIEDP (val
)
4834 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4836 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4837 if (slant
== 100 || slant
== def_slant
)
4838 return 0; /* same as default */
4840 test_caps
|= TTY_CAP_ITALIC
;
4844 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4845 if (!UNSPECIFIEDP (val
))
4848 return 0; /* ttys can't use colored underlines */
4849 else if (EQ (CAR_SAFE (val
), QCstyle
) && EQ (CAR_SAFE (CDR_SAFE (val
)), Qwave
))
4850 return 0; /* ttys can't use wave underlines */
4851 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4852 return 0; /* same as default */
4854 test_caps
|= TTY_CAP_UNDERLINE
;
4858 val
= attrs
[LFACE_INVERSE_INDEX
];
4859 if (!UNSPECIFIEDP (val
))
4861 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4862 return 0; /* same as default */
4864 test_caps
|= TTY_CAP_INVERSE
;
4868 /* Color testing. */
4870 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4871 we use them when calling `tty_capable_p' below, even if the face
4872 specifies no colors. */
4873 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4874 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4876 /* Check if foreground color is close enough. */
4877 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4880 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4882 if (face_attr_equal_p (fg
, def_fg
))
4883 return 0; /* same as default */
4884 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4885 return 0; /* not a valid color */
4886 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4887 > TTY_SAME_COLOR_THRESHOLD
)
4888 return 0; /* displayed color is too different */
4890 /* Make sure the color is really different than the default. */
4892 XColor def_fg_color
;
4893 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4894 && (color_distance (&fg_tty_color
, &def_fg_color
)
4895 <= TTY_SAME_COLOR_THRESHOLD
))
4900 /* Check if background color is close enough. */
4901 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4904 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4906 if (face_attr_equal_p (bg
, def_bg
))
4907 return 0; /* same as default */
4908 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4909 return 0; /* not a valid color */
4910 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4911 > TTY_SAME_COLOR_THRESHOLD
)
4912 return 0; /* displayed color is too different */
4914 /* Make sure the color is really different than the default. */
4916 XColor def_bg_color
;
4917 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4918 && (color_distance (&bg_tty_color
, &def_bg_color
)
4919 <= TTY_SAME_COLOR_THRESHOLD
))
4924 /* If both foreground and background are requested, see if the
4925 distance between them is OK. We just check to see if the distance
4926 between the tty's foreground and background is close enough to the
4927 distance between the standard foreground and background. */
4928 if (STRINGP (fg
) && STRINGP (bg
))
4931 = (color_distance (&fg_std_color
, &bg_std_color
)
4932 - color_distance (&fg_tty_color
, &bg_tty_color
));
4933 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
4934 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
4939 /* See if the capabilities we selected above are supported, with the
4941 if (test_caps
!= 0 &&
4942 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
4943 bg_tty_color
.pixel
))
4947 /* Hmmm, everything checks out, this terminal must support this face. */
4952 DEFUN ("display-supports-face-attributes-p",
4953 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
4955 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
4956 The optional argument DISPLAY can be a display name, a frame, or
4957 nil (meaning the selected frame's display).
4959 The definition of `supported' is somewhat heuristic, but basically means
4960 that a face containing all the attributes in ATTRIBUTES, when merged
4961 with the default face for display, can be represented in a way that's
4963 \(1) different in appearance than the default face, and
4964 \(2) `close in spirit' to what the attributes specify, if not exact.
4966 Point (2) implies that a `:weight black' attribute will be satisfied by
4967 any display that can display bold, and a `:foreground \"yellow\"' as long
4968 as it can display a yellowish color, but `:slant italic' will _not_ be
4969 satisfied by the tty display code's automatic substitution of a `dim'
4970 face for italic. */)
4971 (Lisp_Object attributes
, Lisp_Object display
)
4973 int supports
= 0, i
;
4976 struct face
*def_face
;
4977 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4979 if (noninteractive
|| !initialized
)
4980 /* We may not be able to access low-level face information in batch
4981 mode, or before being dumped, and this function is not going to
4982 be very useful in those cases anyway, so just give up. */
4986 frame
= selected_frame
;
4987 else if (FRAMEP (display
))
4991 /* Find any frame on DISPLAY. */
4995 FOR_EACH_FRAME (tail
, frame
)
4996 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
4997 XFRAME (frame
)->param_alist
)),
5002 CHECK_LIVE_FRAME (frame
);
5005 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5006 attrs
[i
] = Qunspecified
;
5007 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5009 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5010 if (def_face
== NULL
)
5012 if (! realize_basic_faces (f
))
5013 error ("Cannot realize default face");
5014 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5015 if (def_face
== NULL
)
5016 emacs_abort (); /* realize_basic_faces must have set it up */
5019 /* Dispatch to the appropriate handler. */
5020 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5021 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5022 #ifdef HAVE_WINDOW_SYSTEM
5024 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5027 return supports
? Qt
: Qnil
;
5031 /***********************************************************************
5033 ***********************************************************************/
5035 DEFUN ("internal-set-font-selection-order",
5036 Finternal_set_font_selection_order
,
5037 Sinternal_set_font_selection_order
, 1, 1, 0,
5038 doc
: /* Set font selection order for face font selection to ORDER.
5039 ORDER must be a list of length 4 containing the symbols `:width',
5040 `:height', `:weight', and `:slant'. Face attributes appearing
5041 first in ORDER are matched first, e.g. if `:height' appears before
5042 `:weight' in ORDER, font selection first tries to find a font with
5043 a suitable height, and then tries to match the font weight.
5049 int indices
[DIM (font_sort_order
)];
5052 memset (indices
, 0, sizeof indices
);
5056 CONSP (list
) && i
< DIM (indices
);
5057 list
= XCDR (list
), ++i
)
5059 Lisp_Object attr
= XCAR (list
);
5062 if (EQ (attr
, QCwidth
))
5064 else if (EQ (attr
, QCheight
))
5065 xlfd
= XLFD_POINT_SIZE
;
5066 else if (EQ (attr
, QCweight
))
5068 else if (EQ (attr
, QCslant
))
5073 if (indices
[i
] != 0)
5078 if (!NILP (list
) || i
!= DIM (indices
))
5079 signal_error ("Invalid font sort order", order
);
5080 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5081 if (indices
[i
] == 0)
5082 signal_error ("Invalid font sort order", order
);
5084 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5086 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5087 free_all_realized_faces (Qnil
);
5090 font_update_sort_order (font_sort_order
);
5096 DEFUN ("internal-set-alternative-font-family-alist",
5097 Finternal_set_alternative_font_family_alist
,
5098 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5099 doc
: /* Define alternative font families to try in face font selection.
5100 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5101 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5102 be found. Value is ALIST. */)
5105 Lisp_Object entry
, tail
, tail2
;
5108 alist
= Fcopy_sequence (alist
);
5109 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5111 entry
= XCAR (tail
);
5113 entry
= Fcopy_sequence (entry
);
5114 XSETCAR (tail
, entry
);
5115 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5116 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5119 Vface_alternative_font_family_alist
= alist
;
5120 free_all_realized_faces (Qnil
);
5125 DEFUN ("internal-set-alternative-font-registry-alist",
5126 Finternal_set_alternative_font_registry_alist
,
5127 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5128 doc
: /* Define alternative font registries to try in face font selection.
5129 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5130 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5131 be found. Value is ALIST. */)
5134 Lisp_Object entry
, tail
, tail2
;
5137 alist
= Fcopy_sequence (alist
);
5138 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5140 entry
= XCAR (tail
);
5142 entry
= Fcopy_sequence (entry
);
5143 XSETCAR (tail
, entry
);
5144 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5145 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5147 Vface_alternative_font_registry_alist
= alist
;
5148 free_all_realized_faces (Qnil
);
5153 #ifdef HAVE_WINDOW_SYSTEM
5155 /* Return the fontset id of the base fontset name or alias name given
5156 by the fontset attribute of ATTRS. Value is -1 if the fontset
5157 attribute of ATTRS doesn't name a fontset. */
5160 face_fontset (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5164 name
= attrs
[LFACE_FONTSET_INDEX
];
5165 if (!STRINGP (name
))
5167 return fs_query_fontset (name
, 0);
5170 #endif /* HAVE_WINDOW_SYSTEM */
5174 /***********************************************************************
5176 ***********************************************************************/
5178 /* Realize basic faces on frame F. Value is zero if frame parameters
5179 of F don't contain enough information needed to realize the default
5183 realize_basic_faces (struct frame
*f
)
5186 ptrdiff_t count
= SPECPDL_INDEX ();
5188 /* Block input here so that we won't be surprised by an X expose
5189 event, for instance, without having the faces set up. */
5191 specbind (Qscalable_fonts_allowed
, Qt
);
5193 if (realize_default_face (f
))
5195 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5196 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5197 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5198 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5199 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5200 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5201 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5202 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5203 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5204 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5205 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5207 /* Reflect changes in the `menu' face in menu bars. */
5208 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5210 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5211 #ifdef USE_X_TOOLKIT
5212 if (FRAME_WINDOW_P (f
))
5213 x_update_menu_appearance (f
);
5220 unbind_to (count
, Qnil
);
5226 /* Realize the default face on frame F. If the face is not fully
5227 specified, make it fully-specified. Attributes of the default face
5228 that are not explicitly specified are taken from frame parameters. */
5231 realize_default_face (struct frame
*f
)
5233 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5235 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5238 /* If the `default' face is not yet known, create it. */
5239 lface
= lface_from_face_name (f
, Qdefault
, 0);
5243 XSETFRAME (frame
, f
);
5244 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5247 #ifdef HAVE_WINDOW_SYSTEM
5248 if (FRAME_WINDOW_P (f
))
5250 Lisp_Object font_object
;
5252 XSETFONT (font_object
, FRAME_FONT (f
));
5253 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5254 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5255 f
->default_face_done_p
= 1;
5257 #endif /* HAVE_WINDOW_SYSTEM */
5259 if (!FRAME_WINDOW_P (f
))
5261 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5262 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5263 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5264 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5265 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5266 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5267 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5268 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5269 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5270 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5273 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5274 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5276 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5277 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5279 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5280 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5282 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5283 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5285 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5286 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5288 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5290 /* This function is called so early that colors are not yet
5291 set in the frame parameter list. */
5292 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5294 if (CONSP (color
) && STRINGP (XCDR (color
)))
5295 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5296 else if (FRAME_WINDOW_P (f
))
5298 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5299 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5304 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5306 /* This function is called so early that colors are not yet
5307 set in the frame parameter list. */
5308 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5309 if (CONSP (color
) && STRINGP (XCDR (color
)))
5310 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5311 else if (FRAME_WINDOW_P (f
))
5313 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5314 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5319 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5320 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5322 /* Realize the face; it must be fully-specified now. */
5323 eassert (lface_fully_specified_p (XVECTOR (lface
)->u
.contents
));
5324 check_lface (lface
);
5325 memcpy (attrs
, XVECTOR (lface
)->u
.contents
, sizeof attrs
);
5326 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5328 #ifdef HAVE_WINDOW_SYSTEM
5329 #ifdef HAVE_X_WINDOWS
5330 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5332 /* This can happen when making a frame on a display that does
5333 not support the default font. */
5337 /* Otherwise, the font specified for the frame was not
5338 acceptable as a font for the default face (perhaps because
5339 auto-scaled fonts are rejected), so we must adjust the frame
5341 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5343 #endif /* HAVE_X_WINDOWS */
5344 #endif /* HAVE_WINDOW_SYSTEM */
5349 /* Realize basic faces other than the default face in face cache C.
5350 SYMBOL is the face name, ID is the face id the realized face must
5351 have. The default face must have been realized already. */
5354 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5356 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5357 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5358 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5359 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5361 /* The default face must exist and be fully specified. */
5362 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5363 check_lface_attrs (attrs
);
5364 eassert (lface_fully_specified_p (attrs
));
5366 /* If SYMBOL isn't know as a face, create it. */
5370 XSETFRAME (frame
, f
);
5371 lface
= Finternal_make_lisp_face (symbol
, frame
);
5374 /* Merge SYMBOL's face with the default face. */
5375 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5376 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5378 /* Realize the face. */
5379 realize_face (c
, attrs
, id
);
5383 /* Realize the fully-specified face with attributes ATTRS in face
5384 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5385 non-negative, it is an ID of face to remove before caching the new
5386 face. Value is a pointer to the newly created realized face. */
5388 static struct face
*
5389 realize_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
5394 /* LFACE must be fully specified. */
5395 eassert (cache
!= NULL
);
5396 check_lface_attrs (attrs
);
5398 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5400 /* Remove the former face. */
5401 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5402 uncache_face (cache
, former_face
);
5403 free_realized_face (cache
->f
, former_face
);
5404 SET_FRAME_GARBAGED (cache
->f
);
5407 if (FRAME_WINDOW_P (cache
->f
))
5408 face
= realize_x_face (cache
, attrs
);
5409 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5410 face
= realize_tty_face (cache
, attrs
);
5411 else if (FRAME_INITIAL_P (cache
->f
))
5413 /* Create a dummy face. */
5414 face
= make_realized_face (attrs
);
5419 /* Insert the new face. */
5420 cache_face (cache
, face
, lface_hash (attrs
));
5425 #ifdef HAVE_WINDOW_SYSTEM
5426 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5427 same attributes as BASE_FACE except for the font on frame F.
5428 FONT-OBJECT may be nil, in which case, realized a face of
5431 static struct face
*
5432 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5433 struct face
*base_face
)
5435 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5438 face
= xmalloc (sizeof *face
);
5443 = (! NILP (font_object
)
5444 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5445 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5447 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5448 face
->colors_copied_bitwise_p
= 1;
5449 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5452 cache_face (cache
, face
, face
->hash
);
5456 #endif /* HAVE_WINDOW_SYSTEM */
5459 /* Realize the fully-specified face with attributes ATTRS in face
5460 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5461 the new face doesn't share font with the default face, a fontname
5462 is allocated from the heap and set in `font_name' of the new face,
5463 but it is not yet loaded here. Value is a pointer to the newly
5464 created realized face. */
5466 static struct face
*
5467 realize_x_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5469 struct face
*face
= NULL
;
5470 #ifdef HAVE_WINDOW_SYSTEM
5471 struct face
*default_face
;
5473 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5475 eassert (FRAME_WINDOW_P (cache
->f
));
5477 /* Allocate a new realized face. */
5478 face
= make_realized_face (attrs
);
5479 face
->ascii_face
= face
;
5483 /* Determine the font to use. Most of the time, the font will be
5484 the same as the font of the default face, so try that first. */
5485 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5487 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5489 face
->font
= default_face
->font
;
5491 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5495 /* If the face attribute ATTRS specifies a fontset, use it as
5496 the base of a new realized fontset. Otherwise, use the same
5497 base fontset as of the default face. The base determines
5498 registry and encoding of a font. It may also determine
5499 foundry and family. The other fields of font name pattern
5500 are constructed from ATTRS. */
5501 int fontset
= face_fontset (attrs
);
5503 /* If we are realizing the default face, ATTRS should specify a
5504 fontset. In other words, if FONTSET is -1, we are not
5505 realizing the default face, thus the default face should have
5506 already been realized. */
5510 fontset
= default_face
->fontset
;
5514 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5515 attrs
[LFACE_FONT_INDEX
]
5516 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5517 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5519 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5520 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5530 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5531 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5532 face
->overstrike
= 1;
5534 /* Load colors, and set remaining attributes. */
5536 load_face_colors (f
, face
, attrs
);
5539 box
= attrs
[LFACE_BOX_INDEX
];
5542 /* A simple box of line width 1 drawn in color given by
5544 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5546 face
->box
= FACE_SIMPLE_BOX
;
5547 face
->box_line_width
= 1;
5549 else if (INTEGERP (box
))
5551 /* Simple box of specified line width in foreground color of the
5553 eassert (XINT (box
) != 0);
5554 face
->box
= FACE_SIMPLE_BOX
;
5555 face
->box_line_width
= XINT (box
);
5556 face
->box_color
= face
->foreground
;
5557 face
->box_color_defaulted_p
= 1;
5559 else if (CONSP (box
))
5561 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5562 being one of `raised' or `sunken'. */
5563 face
->box
= FACE_SIMPLE_BOX
;
5564 face
->box_color
= face
->foreground
;
5565 face
->box_color_defaulted_p
= 1;
5566 face
->box_line_width
= 1;
5570 Lisp_Object keyword
, value
;
5572 keyword
= XCAR (box
);
5580 if (EQ (keyword
, QCline_width
))
5582 if (INTEGERP (value
) && XINT (value
) != 0)
5583 face
->box_line_width
= XINT (value
);
5585 else if (EQ (keyword
, QCcolor
))
5587 if (STRINGP (value
))
5589 face
->box_color
= load_color (f
, face
, value
,
5591 face
->use_box_color_for_shadows_p
= 1;
5594 else if (EQ (keyword
, QCstyle
))
5596 if (EQ (value
, Qreleased_button
))
5597 face
->box
= FACE_RAISED_BOX
;
5598 else if (EQ (value
, Qpressed_button
))
5599 face
->box
= FACE_SUNKEN_BOX
;
5604 /* Text underline, overline, strike-through. */
5606 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5607 if (EQ (underline
, Qt
))
5609 /* Use default color (same as foreground color). */
5610 face
->underline_p
= 1;
5611 face
->underline_type
= FACE_UNDER_LINE
;
5612 face
->underline_defaulted_p
= 1;
5613 face
->underline_color
= 0;
5615 else if (STRINGP (underline
))
5617 /* Use specified color. */
5618 face
->underline_p
= 1;
5619 face
->underline_type
= FACE_UNDER_LINE
;
5620 face
->underline_defaulted_p
= 0;
5621 face
->underline_color
5622 = load_color (f
, face
, underline
,
5623 LFACE_UNDERLINE_INDEX
);
5625 else if (NILP (underline
))
5627 face
->underline_p
= 0;
5628 face
->underline_defaulted_p
= 0;
5629 face
->underline_color
= 0;
5631 else if (CONSP (underline
))
5633 /* `(:color COLOR :style STYLE)'.
5634 STYLE being one of `line' or `wave'. */
5635 face
->underline_p
= 1;
5636 face
->underline_color
= 0;
5637 face
->underline_defaulted_p
= 1;
5638 face
->underline_type
= FACE_UNDER_LINE
;
5640 /* FIXME? This is also not robust about checking the precise form.
5641 See comments in Finternal_set_lisp_face_attribute. */
5642 while (CONSP (underline
))
5644 Lisp_Object keyword
, value
;
5646 keyword
= XCAR (underline
);
5647 underline
= XCDR (underline
);
5649 if (!CONSP (underline
))
5651 value
= XCAR (underline
);
5652 underline
= XCDR (underline
);
5654 if (EQ (keyword
, QCcolor
))
5656 if (EQ (value
, Qforeground_color
))
5658 face
->underline_defaulted_p
= 1;
5659 face
->underline_color
= 0;
5661 else if (STRINGP (value
))
5663 face
->underline_defaulted_p
= 0;
5664 face
->underline_color
= load_color (f
, face
, value
,
5665 LFACE_UNDERLINE_INDEX
);
5668 else if (EQ (keyword
, QCstyle
))
5670 if (EQ (value
, Qline
))
5671 face
->underline_type
= FACE_UNDER_LINE
;
5672 else if (EQ (value
, Qwave
))
5673 face
->underline_type
= FACE_UNDER_WAVE
;
5678 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5679 if (STRINGP (overline
))
5681 face
->overline_color
5682 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5683 LFACE_OVERLINE_INDEX
);
5684 face
->overline_p
= 1;
5686 else if (EQ (overline
, Qt
))
5688 face
->overline_color
= face
->foreground
;
5689 face
->overline_color_defaulted_p
= 1;
5690 face
->overline_p
= 1;
5693 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5694 if (STRINGP (strike_through
))
5696 face
->strike_through_color
5697 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5698 LFACE_STRIKE_THROUGH_INDEX
);
5699 face
->strike_through_p
= 1;
5701 else if (EQ (strike_through
, Qt
))
5703 face
->strike_through_color
= face
->foreground
;
5704 face
->strike_through_color_defaulted_p
= 1;
5705 face
->strike_through_p
= 1;
5708 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5709 if (!NILP (stipple
))
5710 face
->stipple
= load_pixmap (f
, stipple
);
5711 #endif /* HAVE_WINDOW_SYSTEM */
5717 /* Map a specified color of face FACE on frame F to a tty color index.
5718 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5719 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5720 default foreground/background colors. */
5723 map_tty_color (struct frame
*f
, struct face
*face
,
5724 enum lface_attribute_index idx
, int *defaulted
)
5726 Lisp_Object frame
, color
, def
;
5727 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5728 unsigned long default_pixel
=
5729 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5730 unsigned long pixel
= default_pixel
;
5732 unsigned long default_other_pixel
=
5733 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5736 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5738 XSETFRAME (frame
, f
);
5739 color
= face
->lface
[idx
];
5743 && CONSP (Vtty_defined_color_alist
)
5744 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5747 /* Associations in tty-defined-color-alist are of the form
5748 (NAME INDEX R G B). We need the INDEX part. */
5749 pixel
= XINT (XCAR (XCDR (def
)));
5752 if (pixel
== default_pixel
&& STRINGP (color
))
5754 pixel
= load_color (f
, face
, color
, idx
);
5757 /* If the foreground of the default face is the default color,
5758 use the foreground color defined by the frame. */
5759 if (FRAME_MSDOS_P (f
))
5761 if (pixel
== default_pixel
5762 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5765 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5767 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5768 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5771 else if (pixel
== default_other_pixel
)
5774 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5776 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5777 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5785 face
->foreground
= pixel
;
5787 face
->background
= pixel
;
5791 /* Realize the fully-specified face with attributes ATTRS in face
5792 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5793 Value is a pointer to the newly created realized face. */
5795 static struct face
*
5796 realize_tty_face (struct face_cache
*cache
,
5797 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5801 int face_colors_defaulted
= 0;
5802 struct frame
*f
= cache
->f
;
5804 /* Frame must be a termcap frame. */
5805 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5807 /* Allocate a new realized face. */
5808 face
= make_realized_face (attrs
);
5810 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5813 /* Map face attributes to TTY appearances. */
5814 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5815 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5817 face
->tty_bold_p
= 1;
5819 face
->tty_italic_p
= 1;
5820 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5821 face
->tty_underline_p
= 1;
5822 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5823 face
->tty_reverse_p
= 1;
5825 /* Map color names to color indices. */
5826 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5827 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5829 /* Swap colors if face is inverse-video. If the colors are taken
5830 from the frame colors, they are already inverted, since the
5831 frame-creation function calls x-handle-reverse-video. */
5832 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5834 unsigned long tem
= face
->foreground
;
5835 face
->foreground
= face
->background
;
5836 face
->background
= tem
;
5839 if (tty_suppress_bold_inverse_default_colors_p
5841 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5842 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5843 face
->tty_bold_p
= 0;
5849 DEFUN ("tty-suppress-bold-inverse-default-colors",
5850 Ftty_suppress_bold_inverse_default_colors
,
5851 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5852 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5853 SUPPRESS non-nil means suppress it.
5854 This affects bold faces on TTYs whose foreground is the default background
5855 color of the display and whose background is the default foreground color.
5856 For such faces, the bold face attribute is ignored if this variable
5858 (Lisp_Object suppress
)
5860 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5861 ++face_change_count
;
5867 /***********************************************************************
5869 ***********************************************************************/
5871 /* Return the ID of the face to use to display character CH with face
5872 property PROP on frame F in current_buffer. */
5875 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5879 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5884 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5885 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5889 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5890 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5891 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5892 merge_face_ref (f
, prop
, attrs
, 1, 0);
5893 face_id
= lookup_face (f
, attrs
);
5899 /* Return the face ID associated with buffer position POS for
5900 displaying ASCII characters. Return in *ENDPTR the position at
5901 which a different face is needed, as far as text properties and
5902 overlays are concerned. W is a window displaying current_buffer.
5904 REGION_BEG, REGION_END delimit the region, so it can be
5907 LIMIT is a position not to scan beyond. That is to limit the time
5908 this function can take.
5910 If MOUSE is non-zero, use the character's mouse-face, not its face.
5912 BASE_FACE_ID, if non-negative, specifies a base face id to use
5913 instead of DEFAULT_FACE_ID.
5915 The face returned is suitable for displaying ASCII characters. */
5918 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
5919 ptrdiff_t region_beg
, ptrdiff_t region_end
,
5920 ptrdiff_t *endptr
, ptrdiff_t limit
,
5921 int mouse
, int base_face_id
)
5923 struct frame
*f
= XFRAME (w
->frame
);
5924 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5925 Lisp_Object prop
, position
;
5926 ptrdiff_t i
, noverlays
;
5927 Lisp_Object
*overlay_vec
;
5929 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5930 Lisp_Object limit1
, end
;
5931 struct face
*default_face
;
5933 /* W must display the current buffer. We could write this function
5934 to use the frame and buffer of W, but right now it doesn't. */
5935 /* eassert (XBUFFER (w->contents) == current_buffer); */
5937 XSETFASTINT (position
, pos
);
5940 if (pos
< region_beg
&& region_beg
< endpos
)
5941 endpos
= region_beg
;
5943 /* Get the `face' or `mouse_face' text property at POS, and
5944 determine the next position at which the property changes. */
5945 prop
= Fget_text_property (position
, propname
, w
->contents
);
5946 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5947 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
5949 endpos
= XINT (end
);
5951 /* Look at properties from overlays. */
5953 ptrdiff_t next_overlay
;
5955 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5956 if (next_overlay
< endpos
)
5957 endpos
= next_overlay
;
5965 if (base_face_id
>= 0)
5966 face_id
= base_face_id
;
5967 else if (NILP (Vface_remapping_alist
))
5968 face_id
= DEFAULT_FACE_ID
;
5970 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
5972 default_face
= FACE_FROM_ID (f
, face_id
);
5975 /* Optimize common cases where we can use the default face. */
5978 && !(pos
>= region_beg
&& pos
< region_end
))
5979 return default_face
->id
;
5981 /* Begin with attributes from the default face. */
5982 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5984 /* Merge in attributes specified via text properties. */
5986 merge_face_ref (f
, prop
, attrs
, 1, 0);
5988 /* Now merge the overlay data. */
5989 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
5990 for (i
= 0; i
< noverlays
; i
++)
5995 prop
= Foverlay_get (overlay_vec
[i
], propname
);
5997 merge_face_ref (f
, prop
, attrs
, 1, 0);
5999 oend
= OVERLAY_END (overlay_vec
[i
]);
6000 oendpos
= OVERLAY_POSITION (oend
);
6001 if (oendpos
< endpos
)
6005 /* If in the region, merge in the region face. */
6006 if (pos
>= region_beg
&& pos
< region_end
)
6008 merge_named_face (f
, Qregion
, attrs
, 0);
6010 if (region_end
< endpos
)
6011 endpos
= region_end
;
6016 /* Look up a realized face with the given face attributes,
6017 or realize a new one for ASCII characters. */
6018 return lookup_face (f
, attrs
);
6021 /* Return the face ID at buffer position POS for displaying ASCII
6022 characters associated with overlay strings for overlay OVERLAY.
6024 Like face_at_buffer_position except for OVERLAY. Currently it
6025 simply disregards the `face' properties of all overlays. */
6028 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6029 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6030 ptrdiff_t *endptr
, ptrdiff_t limit
,
6031 int mouse
, Lisp_Object overlay
)
6033 struct frame
*f
= XFRAME (w
->frame
);
6034 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6035 Lisp_Object prop
, position
;
6037 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6038 Lisp_Object limit1
, end
;
6039 struct face
*default_face
;
6041 /* W must display the current buffer. We could write this function
6042 to use the frame and buffer of W, but right now it doesn't. */
6043 /* eassert (XBUFFER (w->contents) == current_buffer); */
6045 XSETFASTINT (position
, pos
);
6048 if (pos
< region_beg
&& region_beg
< endpos
)
6049 endpos
= region_beg
;
6051 /* Get the `face' or `mouse_face' text property at POS, and
6052 determine the next position at which the property changes. */
6053 prop
= Fget_text_property (position
, propname
, w
->contents
);
6054 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6055 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
6057 endpos
= XINT (end
);
6061 /* Optimize common case where we can use the default face. */
6063 && !(pos
>= region_beg
&& pos
< region_end
)
6064 && NILP (Vface_remapping_alist
))
6065 return DEFAULT_FACE_ID
;
6067 /* Begin with attributes from the default face. */
6068 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6069 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6071 /* Merge in attributes specified via text properties. */
6073 merge_face_ref (f
, prop
, attrs
, 1, 0);
6075 /* If in the region, merge in the region face. */
6076 if (pos
>= region_beg
&& pos
< region_end
)
6078 merge_named_face (f
, Qregion
, attrs
, 0);
6080 if (region_end
< endpos
)
6081 endpos
= region_end
;
6086 /* Look up a realized face with the given face attributes,
6087 or realize a new one for ASCII characters. */
6088 return lookup_face (f
, attrs
);
6092 /* Compute the face at character position POS in Lisp string STRING on
6093 window W, for ASCII characters.
6095 If STRING is an overlay string, it comes from position BUFPOS in
6096 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6097 not an overlay string. W must display the current buffer.
6098 REGION_BEG and REGION_END give the start and end positions of the
6099 region; both are -1 if no region is visible.
6101 BASE_FACE_ID is the id of a face to merge with. For strings coming
6102 from overlays or the `display' property it is the face at BUFPOS.
6104 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6106 Set *ENDPTR to the next position where to check for faces in
6107 STRING; -1 if the face is constant from POS to the end of the
6110 Value is the id of the face to use. The face returned is suitable
6111 for displaying ASCII characters. */
6114 face_at_string_position (struct window
*w
, Lisp_Object string
,
6115 ptrdiff_t pos
, ptrdiff_t bufpos
,
6116 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6117 ptrdiff_t *endptr
, enum face_id base_face_id
,
6120 Lisp_Object prop
, position
, end
, limit
;
6121 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6122 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6123 struct face
*base_face
;
6124 bool multibyte_p
= STRING_MULTIBYTE (string
);
6125 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6127 /* Get the value of the face property at the current position within
6128 STRING. Value is nil if there is no face property. */
6129 XSETFASTINT (position
, pos
);
6130 prop
= Fget_text_property (position
, prop_name
, string
);
6132 /* Get the next position at which to check for faces. Value of end
6133 is nil if face is constant all the way to the end of the string.
6134 Otherwise it is a string position where to check faces next.
6135 Limit is the maximum position up to which to check for property
6136 changes in Fnext_single_property_change. Strings are usually
6137 short, so set the limit to the end of the string. */
6138 XSETFASTINT (limit
, SCHARS (string
));
6139 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6141 *endptr
= XFASTINT (end
);
6145 base_face
= FACE_FROM_ID (f
, base_face_id
);
6146 eassert (base_face
);
6148 /* Optimize the default case that there is no face property and we
6149 are not in the region. */
6151 && (base_face_id
!= DEFAULT_FACE_ID
6152 /* BUFPOS <= 0 means STRING is not an overlay string, so
6153 that the region doesn't have to be taken into account. */
6155 || bufpos
< region_beg
6156 || bufpos
>= region_end
)
6158 /* We can't realize faces for different charsets differently
6159 if we don't have fonts, so we can stop here if not working
6160 on a window-system frame. */
6161 || !FRAME_WINDOW_P (f
)
6162 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6163 return base_face
->id
;
6165 /* Begin with attributes from the base face. */
6166 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6168 /* Merge in attributes specified via text properties. */
6170 merge_face_ref (f
, prop
, attrs
, 1, 0);
6172 /* If in the region, merge in the region face. */
6174 && bufpos
>= region_beg
6175 && bufpos
< region_end
)
6176 merge_named_face (f
, Qregion
, attrs
, 0);
6178 /* Look up a realized face with the given face attributes,
6179 or realize a new one for ASCII characters. */
6180 return lookup_face (f
, attrs
);
6184 /* Merge a face into a realized face.
6186 F is frame where faces are (to be) realized.
6188 FACE_NAME is named face to merge.
6190 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6192 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6194 BASE_FACE_ID is realized face to merge into.
6200 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6203 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6204 struct face
*base_face
;
6206 base_face
= FACE_FROM_ID (f
, base_face_id
);
6208 return base_face_id
;
6210 if (EQ (face_name
, Qt
))
6212 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6213 return base_face_id
;
6214 face_name
= lface_id_to_name
[face_id
];
6215 /* When called during make-frame, lookup_derived_face may fail
6216 if the faces are uninitialized. Don't signal an error. */
6217 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6218 return (face_id
>= 0 ? face_id
: base_face_id
);
6221 /* Begin with attributes from the base face. */
6222 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6224 if (!NILP (face_name
))
6226 if (!merge_named_face (f
, face_name
, attrs
, 0))
6227 return base_face_id
;
6233 return base_face_id
;
6234 face
= FACE_FROM_ID (f
, face_id
);
6236 return base_face_id
;
6237 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6240 /* Look up a realized face with the given face attributes,
6241 or realize a new one for ASCII characters. */
6242 return lookup_face (f
, attrs
);
6247 #ifndef HAVE_X_WINDOWS
6248 DEFUN ("x-load-color-file", Fx_load_color_file
,
6249 Sx_load_color_file
, 1, 1, 0,
6250 doc
: /* Create an alist of color entries from an external file.
6252 The file should define one named RGB color per line like so:
6254 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6255 (Lisp_Object filename
)
6258 Lisp_Object cmap
= Qnil
;
6259 Lisp_Object abspath
;
6261 CHECK_STRING (filename
);
6262 abspath
= Fexpand_file_name (filename
, Qnil
);
6265 fp
= emacs_fopen (SSDATA (abspath
), "rt");
6269 int red
, green
, blue
;
6272 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6273 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6276 int color
= RGB (red
, green
, blue
);
6278 int color
= (red
<< 16) | (green
<< 8) | blue
;
6280 char *name
= buf
+ num
;
6281 ptrdiff_t len
= strlen (name
);
6282 len
-= 0 < len
&& name
[len
- 1] == '\n';
6283 cmap
= Fcons (Fcons (make_string (name
, len
), make_number (color
)),
6295 /***********************************************************************
6297 ***********************************************************************/
6301 /* Print the contents of the realized face FACE to stderr. */
6304 dump_realized_face (struct face
*face
)
6306 fprintf (stderr
, "ID: %d\n", face
->id
);
6307 #ifdef HAVE_X_WINDOWS
6308 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6310 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6312 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6313 fprintf (stderr
, "background: 0x%lx (%s)\n",
6315 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6317 fprintf (stderr
, "font_name: %s (%s)\n",
6318 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6319 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6320 #ifdef HAVE_X_WINDOWS
6321 fprintf (stderr
, "font = %p\n", face
->font
);
6323 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6324 fprintf (stderr
, "underline: %d (%s)\n",
6326 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6327 fprintf (stderr
, "hash: %d\n", face
->hash
);
6331 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6338 fprintf (stderr
, "font selection order: ");
6339 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6340 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6341 fprintf (stderr
, "\n");
6343 fprintf (stderr
, "alternative fonts: ");
6344 debug_print (Vface_alternative_font_family_alist
);
6345 fprintf (stderr
, "\n");
6347 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6348 Fdump_face (make_number (i
));
6354 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6356 error ("Not a valid face");
6357 dump_realized_face (face
);
6364 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6365 0, 0, 0, doc
: /* */)
6368 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6369 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6370 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6374 #endif /* GLYPH_DEBUG */
6378 /***********************************************************************
6380 ***********************************************************************/
6383 syms_of_xfaces (void)
6385 DEFSYM (Qface
, "face");
6386 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6387 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6388 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6390 /* Lisp face attribute keywords. */
6391 DEFSYM (QCfamily
, ":family");
6392 DEFSYM (QCheight
, ":height");
6393 DEFSYM (QCweight
, ":weight");
6394 DEFSYM (QCslant
, ":slant");
6395 DEFSYM (QCunderline
, ":underline");
6396 DEFSYM (QCinverse_video
, ":inverse-video");
6397 DEFSYM (QCreverse_video
, ":reverse-video");
6398 DEFSYM (QCforeground
, ":foreground");
6399 DEFSYM (QCbackground
, ":background");
6400 DEFSYM (QCstipple
, ":stipple");
6401 DEFSYM (QCwidth
, ":width");
6402 DEFSYM (QCfont
, ":font");
6403 DEFSYM (QCfontset
, ":fontset");
6404 DEFSYM (QCbold
, ":bold");
6405 DEFSYM (QCitalic
, ":italic");
6406 DEFSYM (QCoverline
, ":overline");
6407 DEFSYM (QCstrike_through
, ":strike-through");
6408 DEFSYM (QCbox
, ":box");
6409 DEFSYM (QCinherit
, ":inherit");
6411 /* Symbols used for Lisp face attribute values. */
6412 DEFSYM (QCcolor
, ":color");
6413 DEFSYM (QCline_width
, ":line-width");
6414 DEFSYM (QCstyle
, ":style");
6415 DEFSYM (Qline
, "line");
6416 DEFSYM (Qwave
, "wave");
6417 DEFSYM (Qreleased_button
, "released-button");
6418 DEFSYM (Qpressed_button
, "pressed-button");
6419 DEFSYM (Qnormal
, "normal");
6420 DEFSYM (Qextra_light
, "extra-light");
6421 DEFSYM (Qlight
, "light");
6422 DEFSYM (Qsemi_light
, "semi-light");
6423 DEFSYM (Qsemi_bold
, "semi-bold");
6424 DEFSYM (Qbold
, "bold");
6425 DEFSYM (Qextra_bold
, "extra-bold");
6426 DEFSYM (Qultra_bold
, "ultra-bold");
6427 DEFSYM (Qoblique
, "oblique");
6428 DEFSYM (Qitalic
, "italic");
6429 DEFSYM (Qbackground_color
, "background-color");
6430 DEFSYM (Qforeground_color
, "foreground-color");
6431 DEFSYM (Qunspecified
, "unspecified");
6432 DEFSYM (QCignore_defface
, ":ignore-defface");
6434 DEFSYM (Qface_alias
, "face-alias");
6435 DEFSYM (Qdefault
, "default");
6436 DEFSYM (Qtool_bar
, "tool-bar");
6437 DEFSYM (Qregion
, "region");
6438 DEFSYM (Qfringe
, "fringe");
6439 DEFSYM (Qheader_line
, "header-line");
6440 DEFSYM (Qscroll_bar
, "scroll-bar");
6441 DEFSYM (Qmenu
, "menu");
6442 DEFSYM (Qcursor
, "cursor");
6443 DEFSYM (Qborder
, "border");
6444 DEFSYM (Qmouse
, "mouse");
6445 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6446 DEFSYM (Qvertical_border
, "vertical-border");
6447 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6448 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6449 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6450 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6451 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6453 Vparam_value_alist
= list1 (Fcons (Qnil
, Qnil
));
6454 staticpro (&Vparam_value_alist
);
6455 Vface_alternative_font_family_alist
= Qnil
;
6456 staticpro (&Vface_alternative_font_family_alist
);
6457 Vface_alternative_font_registry_alist
= Qnil
;
6458 staticpro (&Vface_alternative_font_registry_alist
);
6460 defsubr (&Sinternal_make_lisp_face
);
6461 defsubr (&Sinternal_lisp_face_p
);
6462 defsubr (&Sinternal_set_lisp_face_attribute
);
6463 #ifdef HAVE_WINDOW_SYSTEM
6464 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6466 defsubr (&Scolor_gray_p
);
6467 defsubr (&Scolor_supported_p
);
6468 #ifndef HAVE_X_WINDOWS
6469 defsubr (&Sx_load_color_file
);
6471 defsubr (&Sface_attribute_relative_p
);
6472 defsubr (&Smerge_face_attribute
);
6473 defsubr (&Sinternal_get_lisp_face_attribute
);
6474 defsubr (&Sinternal_lisp_face_attribute_values
);
6475 defsubr (&Sinternal_lisp_face_equal_p
);
6476 defsubr (&Sinternal_lisp_face_empty_p
);
6477 defsubr (&Sinternal_copy_lisp_face
);
6478 defsubr (&Sinternal_merge_in_global_face
);
6479 defsubr (&Sface_font
);
6480 defsubr (&Sframe_face_alist
);
6481 defsubr (&Sdisplay_supports_face_attributes_p
);
6482 defsubr (&Scolor_distance
);
6483 defsubr (&Sinternal_set_font_selection_order
);
6484 defsubr (&Sinternal_set_alternative_font_family_alist
);
6485 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6486 defsubr (&Sface_attributes_as_vector
);
6488 defsubr (&Sdump_face
);
6489 defsubr (&Sshow_face_resources
);
6490 #endif /* GLYPH_DEBUG */
6491 defsubr (&Sclear_face_cache
);
6492 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6494 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6495 defsubr (&Sdump_colors
);
6498 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6499 doc
: /* List of global face definitions (for internal use only.) */);
6500 Vface_new_frame_defaults
= Qnil
;
6502 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6503 doc
: /* Default stipple pattern used on monochrome displays.
6504 This stipple pattern is used on monochrome displays
6505 instead of shades of gray for a face background color.
6506 See `set-face-stipple' for possible values for this variable. */);
6507 Vface_default_stipple
= build_pure_c_string ("gray3");
6509 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6510 doc
: /* An alist of defined terminal colors and their RGB values.
6511 See the docstring of `tty-color-alist' for the details. */);
6512 Vtty_defined_color_alist
= Qnil
;
6514 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6515 doc
: /* Allowed scalable fonts.
6516 A value of nil means don't allow any scalable fonts.
6517 A value of t means allow any scalable font.
6518 Otherwise, value must be a list of regular expressions. A font may be
6519 scaled if its name matches a regular expression in the list.
6520 Note that if value is nil, a scalable font might still be used, if no
6521 other font of the appropriate family and registry is available. */);
6522 Vscalable_fonts_allowed
= Qnil
;
6524 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6525 doc
: /* List of ignored fonts.
6526 Each element is a regular expression that matches names of fonts to
6528 Vface_ignored_fonts
= Qnil
;
6530 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6531 doc
: /* Alist of face remappings.
6532 Each element is of the form:
6534 (FACE . REPLACEMENT),
6536 which causes display of the face FACE to use REPLACEMENT instead.
6537 REPLACEMENT is a face specification, i.e. one of the following:
6540 (2) a property list of attribute/value pairs, or
6541 (3) a list in which each element has the form of (1) or (2).
6543 List values for REPLACEMENT are merged to form the final face
6544 specification, with earlier entries taking precedence, in the same as
6545 as in the `face' text property.
6547 Face-name remapping cycles are suppressed; recursive references use
6548 the underlying face instead of the remapped face. So a remapping of
6551 (FACE EXTRA-FACE... FACE)
6555 (FACE (FACE-ATTR VAL ...) FACE)
6557 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6558 existing definition of FACE. Note that this isn't necessary for the
6559 default face, since every face inherits from the default face.
6561 If this variable is made buffer-local, the face remapping takes effect
6562 only in that buffer. For instance, the mode my-mode could define a
6563 face `my-mode-default', and then in the mode setup function, do:
6565 (set (make-local-variable 'face-remapping-alist)
6566 '((default my-mode-default)))).
6568 Because Emacs normally only redraws screen areas when the underlying
6569 buffer contents change, you may need to call `redraw-display' after
6570 changing this variable for it to take effect. */);
6571 Vface_remapping_alist
= Qnil
;
6573 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6574 doc
: /* Alist of fonts vs the rescaling factors.
6575 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6576 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6577 RESCALE-RATIO is a floating point number to specify how much larger
6578 \(or smaller) font we should use. For instance, if a face requests
6579 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6580 Vface_font_rescale_alist
= Qnil
;
6582 #ifdef HAVE_WINDOW_SYSTEM
6583 defsubr (&Sbitmap_spec_p
);
6584 defsubr (&Sx_list_fonts
);
6585 defsubr (&Sinternal_face_x_get_resource
);
6586 defsubr (&Sx_family_fonts
);