1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2015 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 /* Size of hash table of realized faces in face caches (should be a
279 #define FACE_CACHE_BUCKETS_SIZE 1001
281 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
283 /* Alist of alternative font families. Each element is of the form
284 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
285 try FAMILY1, then FAMILY2, ... */
287 Lisp_Object Vface_alternative_font_family_alist
;
289 /* Alist of alternative font registries. Each element is of the form
290 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
291 loaded, try REGISTRY1, then REGISTRY2, ... */
293 Lisp_Object Vface_alternative_font_registry_alist
;
295 /* The next ID to assign to Lisp faces. */
297 static int next_lface_id
;
299 /* A vector mapping Lisp face Id's to face names. */
301 static Lisp_Object
*lface_id_to_name
;
302 static ptrdiff_t lface_id_to_name_size
;
304 #ifdef HAVE_WINDOW_SYSTEM
306 /* Counter for calls to clear_face_cache. If this counter reaches
307 CLEAR_FONT_TABLE_COUNT, and a frame has more than
308 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
310 static int clear_font_table_count
;
311 #define CLEAR_FONT_TABLE_COUNT 100
312 #define CLEAR_FONT_TABLE_NFONTS 10
314 #endif /* HAVE_WINDOW_SYSTEM */
316 /* Non-zero means face attributes have been changed since the last
317 redisplay. Used in redisplay_internal. */
319 int face_change_count
;
321 /* Non-zero means don't display bold text if a face's foreground
322 and background colors are the inverse of the default colors of the
323 display. This is a kluge to suppress `bold black' foreground text
324 which is hard to read on an LCD monitor. */
326 static int tty_suppress_bold_inverse_default_colors_p
;
328 /* A list of the form `((x . y))' used to avoid consing in
329 Finternal_set_lisp_face_attribute. */
331 static Lisp_Object Vparam_value_alist
;
333 /* The total number of colors currently allocated. */
336 static int ncolors_allocated
;
337 static int npixmaps_allocated
;
341 /* Non-zero means the definition of the `menu' face for new frames has
344 static int menu_face_changed_default
;
346 struct named_merge_point
;
348 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
350 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
351 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
352 static bool realize_basic_faces (struct frame
*);
353 static bool realize_default_face (struct frame
*);
354 static void realize_named_face (struct frame
*, Lisp_Object
, int);
355 static struct face_cache
*make_face_cache (struct frame
*);
356 static void free_face_cache (struct face_cache
*);
357 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
358 int, struct named_merge_point
*);
359 static int color_distance (XColor
*x
, XColor
*y
);
361 #ifdef HAVE_WINDOW_SYSTEM
362 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
363 static void clear_face_gcs (struct face_cache
*);
364 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
366 #endif /* HAVE_WINDOW_SYSTEM */
368 /***********************************************************************
370 ***********************************************************************/
372 #ifdef HAVE_X_WINDOWS
374 #ifdef DEBUG_X_COLORS
376 /* The following is a poor mans infrastructure for debugging X color
377 allocation problems on displays with PseudoColor-8. Some X servers
378 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
379 color reference counts completely so that they don't signal an
380 error when a color is freed whose reference count is already 0.
381 Other X servers do. To help me debug this, the following code
382 implements a simple reference counting schema of its own, for a
383 single display/screen. --gerd. */
385 /* Reference counts for pixel colors. */
387 int color_count
[256];
389 /* Register color PIXEL as allocated. */
392 register_color (unsigned long pixel
)
394 eassert (pixel
< 256);
395 ++color_count
[pixel
];
399 /* Register color PIXEL as deallocated. */
402 unregister_color (unsigned long pixel
)
404 eassert (pixel
< 256);
405 if (color_count
[pixel
] > 0)
406 --color_count
[pixel
];
412 /* Register N colors from PIXELS as deallocated. */
415 unregister_colors (unsigned long *pixels
, int n
)
418 for (i
= 0; i
< n
; ++i
)
419 unregister_color (pixels
[i
]);
423 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
424 doc
: /* Dump currently allocated colors to stderr. */)
429 fputc ('\n', stderr
);
431 for (i
= n
= 0; i
< ARRAYELTS (color_count
); ++i
)
434 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
437 fputc ('\n', stderr
);
439 fputc ('\t', stderr
);
443 fputc ('\n', stderr
);
447 #endif /* DEBUG_X_COLORS */
450 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
451 color values. Interrupt input must be blocked when this function
455 x_free_colors (struct frame
*f
, unsigned long *pixels
, int npixels
)
457 int class = FRAME_DISPLAY_INFO (f
)->visual
->class;
459 /* If display has an immutable color map, freeing colors is not
460 necessary and some servers don't allow it. So don't do it. */
461 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
463 #ifdef DEBUG_X_COLORS
464 unregister_colors (pixels
, npixels
);
466 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
474 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
475 color values. Interrupt input must be blocked when this function
479 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
480 unsigned long *pixels
, int npixels
)
482 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
483 int class = dpyinfo
->visual
->class;
485 /* If display has an immutable color map, freeing colors is not
486 necessary and some servers don't allow it. So don't do it. */
487 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
489 #ifdef DEBUG_X_COLORS
490 unregister_colors (pixels
, npixels
);
492 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
495 #endif /* USE_X_TOOLKIT */
497 /* Create and return a GC for use on frame F. GC values and mask
498 are given by XGCV and MASK. */
501 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
505 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
512 /* Free GC which was used on frame F. */
515 x_free_gc (struct frame
*f
, GC gc
)
517 eassert (input_blocked_p ());
518 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
519 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
522 #endif /* HAVE_X_WINDOWS */
525 /* W32 emulation of GCs */
528 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
532 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
539 /* Free GC which was used on frame F. */
542 x_free_gc (struct frame
*f
, GC gc
)
544 IF_DEBUG ((--ngcs
, eassert (ngcs
>= 0)));
548 #endif /* HAVE_NTGUI */
551 /* NS emulation of GCs */
554 x_create_gc (struct frame
*f
,
558 GC gc
= xmalloc (sizeof *gc
);
564 x_free_gc (struct frame
*f
, GC gc
)
570 /***********************************************************************
572 ***********************************************************************/
574 /* Initialize face cache and basic faces for frame F. */
577 init_frame_faces (struct frame
*f
)
579 /* Make a face cache, if F doesn't have one. */
580 if (FRAME_FACE_CACHE (f
) == NULL
)
581 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
583 #ifdef HAVE_WINDOW_SYSTEM
584 /* Make the image cache. */
585 if (FRAME_WINDOW_P (f
))
587 /* We initialize the image cache when creating the first frame
588 on a terminal, and not during terminal creation. This way,
589 `x-open-connection' on a tty won't create an image cache. */
590 if (FRAME_IMAGE_CACHE (f
) == NULL
)
591 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
592 ++FRAME_IMAGE_CACHE (f
)->refcount
;
594 #endif /* HAVE_WINDOW_SYSTEM */
596 /* Realize faces early (Bug#17889). */
597 if (!realize_basic_faces (f
))
602 /* Free face cache of frame F. Called from frame-dependent
603 resource freeing function, e.g. (x|tty)_free_frame_resources. */
606 free_frame_faces (struct frame
*f
)
608 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
612 free_face_cache (face_cache
);
613 FRAME_FACE_CACHE (f
) = NULL
;
616 #ifdef HAVE_WINDOW_SYSTEM
617 if (FRAME_WINDOW_P (f
))
619 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
622 --image_cache
->refcount
;
623 if (image_cache
->refcount
== 0)
624 free_image_cache (f
);
627 #endif /* HAVE_WINDOW_SYSTEM */
631 /* Clear face caches, and recompute basic faces for frame F. Call
632 this after changing frame parameters on which those faces depend,
633 or when realized faces have been freed due to changing attributes
637 recompute_basic_faces (struct frame
*f
)
639 if (FRAME_FACE_CACHE (f
))
641 clear_face_cache (0);
642 if (!realize_basic_faces (f
))
648 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
649 try to free unused fonts, too. */
652 clear_face_cache (bool clear_fonts_p
)
654 #ifdef HAVE_WINDOW_SYSTEM
655 Lisp_Object tail
, frame
;
658 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
660 /* From time to time see if we can unload some fonts. This also
661 frees all realized faces on all frames. Fonts needed by
662 faces will be loaded again when faces are realized again. */
663 clear_font_table_count
= 0;
665 FOR_EACH_FRAME (tail
, frame
)
667 struct frame
*f
= XFRAME (frame
);
668 if (FRAME_WINDOW_P (f
)
669 && FRAME_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
671 clear_font_cache (f
);
672 free_all_realized_faces (frame
);
678 /* Clear GCs of realized faces. */
679 FOR_EACH_FRAME (tail
, frame
)
681 struct frame
*f
= XFRAME (frame
);
682 if (FRAME_WINDOW_P (f
))
683 clear_face_gcs (FRAME_FACE_CACHE (f
));
685 clear_image_caches (Qnil
);
687 #endif /* HAVE_WINDOW_SYSTEM */
691 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
692 doc
: /* Clear face caches on all frames.
693 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
694 (Lisp_Object thoroughly
)
696 clear_face_cache (!NILP (thoroughly
));
698 windows_or_buffers_changed
= 53;
703 /***********************************************************************
705 ***********************************************************************/
707 #ifdef HAVE_WINDOW_SYSTEM
709 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
710 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
711 A bitmap specification is either a string, a file name, or a list
712 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
713 HEIGHT is its height, and DATA is a string containing the bits of
714 the pixmap. Bits are stored row by row, each row occupies
715 \(WIDTH + 7)/8 bytes. */)
720 if (STRINGP (object
))
721 /* If OBJECT is a string, it's a file name. */
723 else if (CONSP (object
))
725 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
726 HEIGHT must be ints > 0, and DATA must be string large
727 enough to hold a bitmap of the specified size. */
728 Lisp_Object width
, height
, data
;
730 height
= width
= data
= Qnil
;
734 width
= XCAR (object
);
735 object
= XCDR (object
);
738 height
= XCAR (object
);
739 object
= XCDR (object
);
741 data
= XCAR (object
);
746 && RANGED_INTEGERP (1, width
, INT_MAX
)
747 && RANGED_INTEGERP (1, height
, INT_MAX
))
749 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
751 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
756 return pixmap_p
? Qt
: Qnil
;
760 /* Load a bitmap according to NAME (which is either a file name or a
761 pixmap spec) for use on frame F. Value is the bitmap_id (see
762 xfns.c). If NAME is nil, return with a bitmap id of zero. If
763 bitmap cannot be loaded, display a message saying so, and return
767 load_pixmap (struct frame
*f
, Lisp_Object name
)
774 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
779 /* Decode a bitmap spec into a bitmap. */
784 w
= XINT (Fcar (name
));
785 h
= XINT (Fcar (Fcdr (name
)));
786 bits
= Fcar (Fcdr (Fcdr (name
)));
788 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
793 /* It must be a string -- a file name. */
794 bitmap_id
= x_create_bitmap_from_file (f
, name
);
800 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
806 ++npixmaps_allocated
;
813 #endif /* HAVE_WINDOW_SYSTEM */
817 /***********************************************************************
819 ***********************************************************************/
821 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
822 RGB_LIST should contain (at least) 3 lisp integers.
823 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
826 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
828 #define PARSE_RGB_LIST_FIELD(field) \
829 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
831 color->field = XINT (XCAR (rgb_list)); \
832 rgb_list = XCDR (rgb_list); \
837 PARSE_RGB_LIST_FIELD (red
);
838 PARSE_RGB_LIST_FIELD (green
);
839 PARSE_RGB_LIST_FIELD (blue
);
845 /* Lookup on frame F the color described by the lisp string COLOR.
846 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
847 non-zero, then the `standard' definition of the same color is
851 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
854 Lisp_Object frame
, color_desc
;
856 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
859 XSETFRAME (frame
, f
);
861 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
862 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
866 if (! INTEGERP (XCAR (XCDR (color_desc
))))
869 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
871 rgb
= XCDR (XCDR (color_desc
));
872 if (! parse_rgb_list (rgb
, tty_color
))
875 /* Should we fill in STD_COLOR too? */
878 /* Default STD_COLOR to the same as TTY_COLOR. */
879 *std_color
= *tty_color
;
881 /* Do a quick check to see if the returned descriptor is
882 actually _exactly_ equal to COLOR, otherwise we have to
883 lookup STD_COLOR separately. If it's impossible to lookup
884 a standard color, we just give up and use TTY_COLOR. */
885 if ((!STRINGP (XCAR (color_desc
))
886 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
887 && !NILP (Ffboundp (Qtty_color_standard_values
)))
889 /* Look up STD_COLOR separately. */
890 rgb
= call1 (Qtty_color_standard_values
, color
);
891 if (! parse_rgb_list (rgb
, std_color
))
898 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
899 /* We were called early during startup, and the colors are not
900 yet set up in tty-defined-color-alist. Don't return a failure
901 indication, since this produces the annoying "Unable to
902 load color" messages in the *Messages* buffer. */
905 /* tty-color-desc seems to have returned a bad value. */
909 /* A version of defined_color for non-X frames. */
912 tty_defined_color (struct frame
*f
, const char *color_name
,
913 XColor
*color_def
, bool alloc
)
918 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
921 color_def
->green
= 0;
924 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
926 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
928 if (strcmp (color_name
, "unspecified-fg") == 0)
929 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
930 else if (strcmp (color_name
, "unspecified-bg") == 0)
931 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
934 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
941 /* Decide if color named COLOR_NAME is valid for the display
942 associated with the frame F; if so, return the rgb values in
943 COLOR_DEF. If ALLOC, allocate a new colormap cell.
945 This does the right thing for any type of frame. */
948 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
951 if (!FRAME_WINDOW_P (f
))
952 return tty_defined_color (f
, color_name
, color_def
, alloc
);
953 #ifdef HAVE_X_WINDOWS
954 else if (FRAME_X_P (f
))
955 return x_defined_color (f
, color_name
, color_def
, alloc
);
958 else if (FRAME_W32_P (f
))
959 return w32_defined_color (f
, color_name
, color_def
, alloc
);
962 else if (FRAME_NS_P (f
))
963 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
970 /* Given the index IDX of a tty color on frame F, return its name, a
974 tty_color_name (struct frame
*f
, int idx
)
976 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
981 XSETFRAME (frame
, f
);
982 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
985 return XCAR (coldesc
);
988 /* We can have an MS-DOS frame under -nw for a short window of
989 opportunity before internal_terminal_init is called. DTRT. */
990 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
991 return msdos_stdcolor_name (idx
);
994 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
995 return build_string (unspecified_fg
);
996 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
997 return build_string (unspecified_bg
);
1003 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1006 The criterion implemented here is not a terribly sophisticated one. */
1009 face_color_gray_p (struct frame
*f
, const char *color_name
)
1014 if (defined_color (f
, color_name
, &color
, 0))
1015 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1016 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1018 ((eabs (color
.red
- color
.green
)
1019 < max (color
.red
, color
.green
) / 20)
1020 && (eabs (color
.green
- color
.blue
)
1021 < max (color
.green
, color
.blue
) / 20)
1022 && (eabs (color
.blue
- color
.red
)
1023 < max (color
.blue
, color
.red
) / 20)));
1031 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1032 BACKGROUND_P non-zero means the color will be used as background
1036 face_color_supported_p (struct frame
*f
, const char *color_name
,
1042 XSETFRAME (frame
, f
);
1044 #ifdef HAVE_WINDOW_SYSTEM
1046 ? (!NILP (Fxw_display_color_p (frame
))
1047 || xstrcasecmp (color_name
, "black") == 0
1048 || xstrcasecmp (color_name
, "white") == 0
1050 && face_color_gray_p (f
, color_name
))
1051 || (!NILP (Fx_display_grayscale_p (frame
))
1052 && face_color_gray_p (f
, color_name
)))
1055 tty_defined_color (f
, color_name
, ¬_used
, 0);
1059 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1060 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1061 FRAME specifies the frame and thus the display for interpreting COLOR.
1062 If FRAME is nil or omitted, use the selected frame. */)
1063 (Lisp_Object color
, Lisp_Object frame
)
1065 CHECK_STRING (color
);
1066 return (face_color_gray_p (decode_any_frame (frame
), SSDATA (color
))
1071 DEFUN ("color-supported-p", Fcolor_supported_p
,
1072 Scolor_supported_p
, 1, 3, 0,
1073 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1074 BACKGROUND-P non-nil means COLOR is used as a background.
1075 Otherwise, this function tells whether it can be used as a foreground.
1076 If FRAME is nil or omitted, use the selected frame.
1077 COLOR must be a valid color name. */)
1078 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1080 CHECK_STRING (color
);
1081 return (face_color_supported_p (decode_any_frame (frame
),
1082 SSDATA (color
), !NILP (background_p
))
1087 static unsigned long
1088 load_color2 (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1089 enum lface_attribute_index target_index
, XColor
*color
)
1091 eassert (STRINGP (name
));
1092 eassert (target_index
== LFACE_FOREGROUND_INDEX
1093 || target_index
== LFACE_BACKGROUND_INDEX
1094 || target_index
== LFACE_UNDERLINE_INDEX
1095 || target_index
== LFACE_OVERLINE_INDEX
1096 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1097 || target_index
== LFACE_BOX_INDEX
);
1099 /* if the color map is full, defined_color will return a best match
1100 to the values in an existing cell. */
1101 if (!defined_color (f
, SSDATA (name
), color
, 1))
1103 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1105 switch (target_index
)
1107 case LFACE_FOREGROUND_INDEX
:
1108 face
->foreground_defaulted_p
= 1;
1109 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1112 case LFACE_BACKGROUND_INDEX
:
1113 face
->background_defaulted_p
= 1;
1114 color
->pixel
= FRAME_BACKGROUND_PIXEL (f
);
1117 case LFACE_UNDERLINE_INDEX
:
1118 face
->underline_defaulted_p
= 1;
1119 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1122 case LFACE_OVERLINE_INDEX
:
1123 face
->overline_color_defaulted_p
= 1;
1124 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1127 case LFACE_STRIKE_THROUGH_INDEX
:
1128 face
->strike_through_color_defaulted_p
= 1;
1129 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1132 case LFACE_BOX_INDEX
:
1133 face
->box_color_defaulted_p
= 1;
1134 color
->pixel
= FRAME_FOREGROUND_PIXEL (f
);
1143 ++ncolors_allocated
;
1146 return color
->pixel
;
1149 /* Load color with name NAME for use by face FACE on frame F.
1150 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1151 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1152 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1153 pixel color. If color cannot be loaded, display a message, and
1154 return the foreground, background or underline color of F, but
1155 record that fact in flags of the face so that we don't try to free
1159 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1160 enum lface_attribute_index target_index
)
1163 return load_color2 (f
, face
, name
, target_index
, &color
);
1167 #ifdef HAVE_WINDOW_SYSTEM
1169 #define NEAR_SAME_COLOR_THRESHOLD 30000
1171 /* Load colors for face FACE which is used on frame F. Colors are
1172 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1173 of ATTRS. If the background color specified is not supported on F,
1174 try to emulate gray colors with a stipple from Vface_default_stipple. */
1177 load_face_colors (struct frame
*f
, struct face
*face
,
1178 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1180 Lisp_Object fg
, bg
, dfg
;
1183 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1184 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1186 /* Swap colors if face is inverse-video. */
1187 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1195 /* Check for support for foreground, not for background because
1196 face_color_supported_p is smart enough to know that grays are
1197 "supported" as background because we are supposed to use stipple
1199 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1200 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1202 x_destroy_bitmap (f
, face
->stipple
);
1203 face
->stipple
= load_pixmap (f
, Vface_default_stipple
);
1206 face
->background
= load_color2 (f
, face
, bg
, LFACE_BACKGROUND_INDEX
, &xbg
);
1207 face
->foreground
= load_color2 (f
, face
, fg
, LFACE_FOREGROUND_INDEX
, &xfg
);
1209 dfg
= attrs
[LFACE_DISTANT_FOREGROUND_INDEX
];
1210 if (!NILP (dfg
) && !UNSPECIFIEDP (dfg
)
1211 && color_distance (&xbg
, &xfg
) < NEAR_SAME_COLOR_THRESHOLD
)
1213 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1214 face
->background
= load_color (f
, face
, dfg
, LFACE_BACKGROUND_INDEX
);
1216 face
->foreground
= load_color (f
, face
, dfg
, LFACE_FOREGROUND_INDEX
);
1220 #ifdef HAVE_X_WINDOWS
1222 /* Free color PIXEL on frame F. */
1225 unload_color (struct frame
*f
, unsigned long pixel
)
1230 x_free_colors (f
, &pixel
, 1);
1235 /* Free colors allocated for FACE. */
1238 free_face_colors (struct frame
*f
, struct face
*face
)
1240 /* PENDING(NS): need to do something here? */
1242 if (face
->colors_copied_bitwise_p
)
1247 if (!face
->foreground_defaulted_p
)
1249 x_free_colors (f
, &face
->foreground
, 1);
1250 IF_DEBUG (--ncolors_allocated
);
1253 if (!face
->background_defaulted_p
)
1255 x_free_colors (f
, &face
->background
, 1);
1256 IF_DEBUG (--ncolors_allocated
);
1259 if (face
->underline_p
1260 && !face
->underline_defaulted_p
)
1262 x_free_colors (f
, &face
->underline_color
, 1);
1263 IF_DEBUG (--ncolors_allocated
);
1266 if (face
->overline_p
1267 && !face
->overline_color_defaulted_p
)
1269 x_free_colors (f
, &face
->overline_color
, 1);
1270 IF_DEBUG (--ncolors_allocated
);
1273 if (face
->strike_through_p
1274 && !face
->strike_through_color_defaulted_p
)
1276 x_free_colors (f
, &face
->strike_through_color
, 1);
1277 IF_DEBUG (--ncolors_allocated
);
1280 if (face
->box
!= FACE_NO_BOX
1281 && !face
->box_color_defaulted_p
)
1283 x_free_colors (f
, &face
->box_color
, 1);
1284 IF_DEBUG (--ncolors_allocated
);
1290 #endif /* HAVE_X_WINDOWS */
1292 #endif /* HAVE_WINDOW_SYSTEM */
1296 /***********************************************************************
1298 ***********************************************************************/
1300 /* An enumerator for each field of an XLFD font name. */
1321 /* An enumerator for each possible slant value of a font. Taken from
1322 the XLFD specification. */
1330 XLFD_SLANT_REVERSE_ITALIC
,
1331 XLFD_SLANT_REVERSE_OBLIQUE
,
1335 /* Relative font weight according to XLFD documentation. */
1339 XLFD_WEIGHT_UNKNOWN
,
1340 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1341 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1342 XLFD_WEIGHT_LIGHT
, /* 30 */
1343 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1344 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1345 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1346 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1347 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1348 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1351 /* Relative proportionate width. */
1355 XLFD_SWIDTH_UNKNOWN
,
1356 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1357 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1358 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1359 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1360 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1361 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1362 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1363 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1364 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1367 /* Order by which font selection chooses fonts. The default values
1368 mean `first, find a best match for the font width, then for the
1369 font height, then for weight, then for slant.' This variable can be
1370 set via set-face-font-sort-order. */
1372 static int font_sort_order
[4];
1374 #ifdef HAVE_WINDOW_SYSTEM
1376 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1379 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1381 Lisp_Object
const *p1
= v1
;
1382 Lisp_Object
const *p2
= v2
;
1383 Lisp_Object font1
= *p1
;
1384 Lisp_Object font2
= *p2
;
1387 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1389 enum font_property_index idx
= font_props_for_sorting
[i
];
1390 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1393 if (idx
<= FONT_REGISTRY_INDEX
)
1396 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1398 result
= STRINGP (val2
) ? 1 : 0;
1402 if (INTEGERP (val1
))
1403 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1404 ? XINT (val1
) > XINT (val2
)
1407 result
= INTEGERP (val2
) ? 1 : 0;
1415 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1416 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1417 If FAMILY is omitted or nil, list all families.
1418 Otherwise, FAMILY must be a string, possibly containing wildcards
1420 If FRAME is omitted or nil, use the selected frame.
1421 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1422 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1423 FAMILY is the font family name. POINT-SIZE is the size of the
1424 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1425 width, weight and slant of the font. These symbols are the same as for
1426 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1427 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1428 giving the registry and encoding of the font.
1429 The result list is sorted according to the current setting of
1430 the face font sort order. */)
1431 (Lisp_Object family
, Lisp_Object frame
)
1433 Lisp_Object font_spec
, list
, *drivers
, vec
;
1434 struct frame
*f
= decode_live_frame (frame
);
1435 ptrdiff_t i
, nfonts
;
1440 font_spec
= Ffont_spec (0, NULL
);
1443 CHECK_STRING (family
);
1444 font_parse_family_registry (family
, Qnil
, font_spec
);
1447 list
= font_list_entities (f
, font_spec
);
1451 /* Sort the font entities. */
1452 for (i
= 0; i
< 4; i
++)
1453 switch (font_sort_order
[i
])
1456 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1457 case XLFD_POINT_SIZE
:
1458 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1460 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1462 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1464 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1465 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1466 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1467 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1469 ndrivers
= XINT (Flength (list
));
1470 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1471 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1472 drivers
[i
] = XCAR (list
);
1473 vec
= Fvconcat (ndrivers
, drivers
);
1474 nfonts
= ASIZE (vec
);
1476 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1477 compare_fonts_by_sort_order
);
1480 for (i
= nfonts
- 1; i
>= 0; --i
)
1482 Lisp_Object font
= AREF (vec
, i
);
1483 Lisp_Object v
= make_uninit_vector (8);
1485 Lisp_Object spacing
;
1487 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1488 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1489 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1491 ASET (v
, 2, make_number (point
));
1492 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1493 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1494 spacing
= Ffont_get (font
, QCspacing
);
1495 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1496 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1497 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1499 result
= Fcons (v
, result
);
1506 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1507 doc
: /* Return a list of the names of available fonts matching PATTERN.
1508 If optional arguments FACE and FRAME are specified, return only fonts
1509 the same size as FACE on FRAME.
1511 PATTERN should be a string containing a font name in the XLFD,
1512 Fontconfig, or GTK format. A font name given in the XLFD format may
1513 contain wildcard characters:
1514 the * character matches any substring, and
1515 the ? character matches any single character.
1516 PATTERN is case-insensitive.
1518 The return value is a list of strings, suitable as arguments to
1521 Fonts Emacs can't use may or may not be excluded
1522 even if they match PATTERN and FACE.
1523 The optional fourth argument MAXIMUM sets a limit on how many
1524 fonts to match. The first MAXIMUM fonts are reported.
1525 The optional fifth argument WIDTH, if specified, is a number of columns
1526 occupied by a character of a font. In that case, return only fonts
1527 the WIDTH times as wide as FACE on FRAME. */)
1528 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1529 Lisp_Object maximum
, Lisp_Object width
)
1532 int size
, avgwidth
IF_LINT (= 0);
1534 check_window_system (NULL
);
1535 CHECK_STRING (pattern
);
1537 if (! NILP (maximum
))
1538 CHECK_NATNUM (maximum
);
1541 CHECK_NUMBER (width
);
1543 /* We can't simply call decode_window_system_frame because
1544 this function may be called before any frame is created. */
1545 f
= decode_live_frame (frame
);
1546 if (! FRAME_WINDOW_P (f
))
1548 /* Perhaps we have not yet created any frame. */
1554 XSETFRAME (frame
, f
);
1556 /* Determine the width standard for comparison with the fonts we find. */
1562 /* This is of limited utility since it works with character
1563 widths. Keep it for compatibility. --gerd. */
1564 int face_id
= lookup_named_face (f
, face
, 0);
1565 struct face
*width_face
= (face_id
< 0
1567 : FACE_FROM_ID (f
, face_id
));
1569 if (width_face
&& width_face
->font
)
1571 size
= width_face
->font
->pixel_size
;
1572 avgwidth
= width_face
->font
->average_width
;
1576 size
= FRAME_FONT (f
)->pixel_size
;
1577 avgwidth
= FRAME_FONT (f
)->average_width
;
1580 avgwidth
*= XINT (width
);
1584 Lisp_Object font_spec
;
1585 Lisp_Object args
[2], tail
;
1587 font_spec
= font_spec_from_name (pattern
);
1588 if (!FONTP (font_spec
))
1589 signal_error ("Invalid font name", pattern
);
1593 Ffont_put (font_spec
, QCsize
, make_number (size
));
1594 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1596 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1597 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1599 Lisp_Object font_entity
;
1601 font_entity
= XCAR (tail
);
1602 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1603 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1604 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1606 /* This is a scalable font. For backward compatibility,
1607 we set the specified size. */
1608 font_entity
= copy_font_spec (font_entity
);
1609 ASET (font_entity
, FONT_SIZE_INDEX
,
1610 AREF (font_spec
, FONT_SIZE_INDEX
));
1612 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1615 /* We don't have to check fontsets. */
1617 args
[1] = list_fontsets (f
, pattern
, size
);
1618 return Fnconc (2, args
);
1622 #endif /* HAVE_WINDOW_SYSTEM */
1625 /***********************************************************************
1627 ***********************************************************************/
1629 /* Access face attributes of face LFACE, a Lisp vector. */
1631 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1632 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1633 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1634 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1635 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1636 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1637 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1638 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1639 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1640 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1641 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1642 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1643 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1644 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1645 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1646 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1647 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1648 #define LFACE_DISTANT_FOREGROUND(LFACE) \
1649 AREF ((LFACE), LFACE_DISTANT_FOREGROUND_INDEX)
1651 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1652 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1654 #define LFACEP(LFACE) \
1656 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1657 && EQ (AREF (LFACE, 0), Qface))
1662 /* Check consistency of Lisp face attribute vector ATTRS. */
1665 check_lface_attrs (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1667 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1668 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1669 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1670 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1671 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1672 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1673 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1674 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1675 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1676 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1677 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1678 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1679 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1680 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1681 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1682 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1683 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1684 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1685 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1686 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1687 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1688 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1689 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1690 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1691 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1692 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1693 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1694 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1695 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1696 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1697 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1698 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1699 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1700 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1701 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1702 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1703 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1704 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1705 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1706 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1707 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1708 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1709 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1710 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1711 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1712 eassert (UNSPECIFIEDP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
1713 || IGNORE_DEFFACE_P (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
1714 || STRINGP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
]));
1715 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1716 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1717 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1718 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1719 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1720 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1721 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1722 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1723 #ifdef HAVE_WINDOW_SYSTEM
1724 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1725 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1726 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1727 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1728 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1729 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1730 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1731 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1732 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1733 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1738 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1741 check_lface (Lisp_Object lface
)
1745 eassert (LFACEP (lface
));
1746 check_lface_attrs (XVECTOR (lface
)->contents
);
1750 #else /* not GLYPH_DEBUG */
1752 #define check_lface_attrs(attrs) (void) 0
1753 #define check_lface(lface) (void) 0
1755 #endif /* GLYPH_DEBUG */
1759 /* Face-merge cycle checking. */
1761 enum named_merge_point_kind
1763 NAMED_MERGE_POINT_NORMAL
,
1764 NAMED_MERGE_POINT_REMAP
1767 /* A `named merge point' is simply a point during face-merging where we
1768 look up a face by name. We keep a stack of which named lookups we're
1769 currently processing so that we can easily detect cycles, using a
1770 linked- list of struct named_merge_point structures, typically
1771 allocated on the stack frame of the named lookup functions which are
1772 active (so no consing is required). */
1773 struct named_merge_point
1775 Lisp_Object face_name
;
1776 enum named_merge_point_kind named_merge_point_kind
;
1777 struct named_merge_point
*prev
;
1781 /* If a face merging cycle is detected for FACE_NAME, return 0,
1782 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1783 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1784 pointed to by NAMED_MERGE_POINTS, and return 1. */
1787 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1788 Lisp_Object face_name
,
1789 enum named_merge_point_kind named_merge_point_kind
,
1790 struct named_merge_point
**named_merge_points
)
1792 struct named_merge_point
*prev
;
1794 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1795 if (EQ (face_name
, prev
->face_name
))
1797 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1798 /* A cycle, so fail. */
1800 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1801 /* A remap `hides ' any previous normal merge points
1802 (because the remap means that it's actually different face),
1803 so as we know the current merge point must be normal, we
1804 can just assume it's OK. */
1808 new_named_merge_point
->face_name
= face_name
;
1809 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1810 new_named_merge_point
->prev
= *named_merge_points
;
1812 *named_merge_points
= new_named_merge_point
;
1818 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1819 to make it a symbol. If FACE_NAME is an alias for another face,
1820 return that face's name.
1822 Return default face in case of errors. */
1825 resolve_face_name (Lisp_Object face_name
, int signal_p
)
1827 Lisp_Object orig_face
;
1828 Lisp_Object tortoise
, hare
;
1830 if (STRINGP (face_name
))
1831 face_name
= intern (SSDATA (face_name
));
1833 if (NILP (face_name
) || !SYMBOLP (face_name
))
1836 orig_face
= face_name
;
1837 tortoise
= hare
= face_name
;
1842 hare
= Fget (hare
, Qface_alias
);
1843 if (NILP (hare
) || !SYMBOLP (hare
))
1847 hare
= Fget (hare
, Qface_alias
);
1848 if (NILP (hare
) || !SYMBOLP (hare
))
1851 tortoise
= Fget (tortoise
, Qface_alias
);
1852 if (EQ (hare
, tortoise
))
1855 xsignal1 (Qcircular_list
, orig_face
);
1864 /* Return the face definition of FACE_NAME on frame F. F null means
1865 return the definition for new frames. FACE_NAME may be a string or
1866 a symbol (apparently Emacs 20.2 allowed strings as face names in
1867 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
1868 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
1869 is zero, value is nil if FACE_NAME is not a valid face name. */
1871 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
1877 lface
= assq_no_quit (face_name
, f
->face_alist
);
1879 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
1882 lface
= XCDR (lface
);
1884 signal_error ("Invalid face", face_name
);
1886 check_lface (lface
);
1891 /* Return the face definition of FACE_NAME on frame F. F null means
1892 return the definition for new frames. FACE_NAME may be a string or
1893 a symbol (apparently Emacs 20.2 allowed strings as face names in
1894 face text properties; Ediff uses that). If FACE_NAME is an alias
1895 for another face, return that face's definition. If SIGNAL_P is
1896 non-zero, signal an error if FACE_NAME is not a valid face name.
1897 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
1900 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
1902 face_name
= resolve_face_name (face_name
, signal_p
);
1903 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1907 /* Get face attributes of face FACE_NAME from frame-local faces on
1908 frame F. Store the resulting attributes in ATTRS which must point
1909 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
1910 is non-zero, signal an error if FACE_NAME does not name a face.
1911 Otherwise, value is zero if FACE_NAME is not a face. */
1914 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
1915 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
1920 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
1923 memcpy (attrs
, XVECTOR (lface
)->contents
,
1924 LFACE_VECTOR_SIZE
* sizeof *attrs
);
1926 return !NILP (lface
);
1929 /* Get face attributes of face FACE_NAME from frame-local faces on frame
1930 F. Store the resulting attributes in ATTRS which must point to a
1931 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
1932 alias for another face, use that face's definition. If SIGNAL_P is
1933 non-zero, signal an error if FACE_NAME does not name a face.
1934 Otherwise, value is zero if FACE_NAME is not a face. */
1937 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
1938 Lisp_Object attrs
[LFACE_VECTOR_SIZE
], int signal_p
,
1939 struct named_merge_point
*named_merge_points
)
1941 Lisp_Object face_remapping
;
1943 face_name
= resolve_face_name (face_name
, signal_p
);
1945 /* See if SYMBOL has been remapped to some other face (usually this
1946 is done buffer-locally). */
1947 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
1948 if (CONSP (face_remapping
))
1950 struct named_merge_point named_merge_point
;
1952 if (push_named_merge_point (&named_merge_point
,
1953 face_name
, NAMED_MERGE_POINT_REMAP
,
1954 &named_merge_points
))
1958 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
1959 attrs
[i
] = Qunspecified
;
1961 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
1962 signal_p
, named_merge_points
);
1966 /* Default case, no remapping. */
1967 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
1971 /* Non-zero if all attributes in face attribute vector ATTRS are
1972 specified, i.e. are non-nil. */
1975 lface_fully_specified_p (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1979 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
1980 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
1981 && i
!= LFACE_DISTANT_FOREGROUND_INDEX
)
1982 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
1985 return i
== LFACE_VECTOR_SIZE
;
1988 #ifdef HAVE_WINDOW_SYSTEM
1990 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
1991 If FORCE_P is zero, set only unspecified attributes of LFACE. The
1992 exception is `font' attribute. It is set to FONT_OBJECT regardless
1996 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
1997 Lisp_Object font_object
, int force_p
)
2000 struct font
*font
= XFONT_OBJECT (font_object
);
2002 /* Set attributes only if unspecified, otherwise face defaults for
2003 new frames would never take effect. If the font doesn't have a
2004 specific property, set a normal value for that. */
2006 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2008 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2010 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2013 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2015 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2017 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2020 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2022 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, FRAME_RES_Y (f
));
2025 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2028 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2030 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2031 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2033 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2035 val
= FONT_SLANT_FOR_FACE (font_object
);
2036 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2038 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2040 val
= FONT_WIDTH_FOR_FACE (font_object
);
2041 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2044 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2048 #endif /* HAVE_WINDOW_SYSTEM */
2051 /* Merges the face height FROM with the face height TO, and returns the
2052 merged height. If FROM is an invalid height, then INVALID is
2053 returned instead. FROM and TO may be either absolute face heights or
2054 `relative' heights; the returned value is always an absolute height
2055 unless both FROM and TO are relative. */
2058 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2060 Lisp_Object result
= invalid
;
2062 if (INTEGERP (from
))
2063 /* FROM is absolute, just use it as is. */
2065 else if (FLOATP (from
))
2066 /* FROM is a scale, use it to adjust TO. */
2069 /* relative X absolute => absolute */
2070 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2071 else if (FLOATP (to
))
2072 /* relative X relative => relative */
2073 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2074 else if (UNSPECIFIEDP (to
))
2077 else if (FUNCTIONP (from
))
2078 /* FROM is a function, which use to adjust TO. */
2080 /* Call function with current height as argument.
2081 From is the new height. */
2082 result
= safe_call1 (from
, to
);
2084 /* Ensure that if TO was absolute, so is the result. */
2085 if (INTEGERP (to
) && !INTEGERP (result
))
2093 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2094 store the resulting attributes in TO, which must be already be
2095 completely specified and contain only absolute attributes. Every
2096 specified attribute of FROM overrides the corresponding attribute of
2097 TO; relative attributes in FROM are merged with the absolute value in
2098 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2099 loops in face inheritance/remapping; it should be 0 when called from
2103 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2104 struct named_merge_point
*named_merge_points
)
2107 Lisp_Object font
= Qnil
;
2109 /* If FROM inherits from some other faces, merge their attributes into
2110 TO before merging FROM's direct attributes. Note that an :inherit
2111 attribute of `unspecified' is the same as one of nil; we never
2112 merge :inherit attributes, so nil is more correct, but lots of
2113 other code uses `unspecified' as a generic value for face attributes. */
2114 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2115 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2116 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2118 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2120 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2121 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2123 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2124 to
[LFACE_FONT_INDEX
] = font
;
2127 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2128 if (!UNSPECIFIEDP (from
[i
]))
2130 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2132 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2133 font_clear_prop (to
, FONT_SIZE_INDEX
);
2135 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2138 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2139 font_clear_prop (to
,
2140 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2141 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2142 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2143 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2144 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2145 : FONT_SLANT_INDEX
));
2149 /* If FROM specifies a font spec, make its contents take precedence
2150 over :family and other attributes. This is needed for face
2151 remapping using :font to work. */
2155 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2156 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2157 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2158 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2159 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2160 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2161 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2162 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2163 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2164 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2165 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2168 /* TO is always an absolute face, which should inherit from nothing.
2169 We blindly copy the :inherit attribute above and fix it up here. */
2170 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2173 /* Merge the named face FACE_NAME on frame F, into the vector of face
2174 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2175 inheritance. Returns true if FACE_NAME is a valid face name and
2176 merging succeeded. */
2179 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2180 struct named_merge_point
*named_merge_points
)
2182 struct named_merge_point named_merge_point
;
2184 if (push_named_merge_point (&named_merge_point
,
2185 face_name
, NAMED_MERGE_POINT_NORMAL
,
2186 &named_merge_points
))
2188 struct gcpro gcpro1
;
2189 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2190 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2194 GCPRO1 (named_merge_point
.face_name
);
2195 merge_face_vectors (f
, from
, to
, named_merge_points
);
2206 /* Merge face attributes from the lisp `face reference' FACE_REF on
2207 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2208 problems with FACE_REF cause an error message to be shown. Return
2209 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2210 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2211 list structure; it may be 0 for most callers.
2213 FACE_REF may be a single face specification or a list of such
2214 specifications. Each face specification can be:
2216 1. A symbol or string naming a Lisp face.
2218 2. A property list of the form (KEYWORD VALUE ...) where each
2219 KEYWORD is a face attribute name, and value is an appropriate value
2222 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2223 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2224 for compatibility with 20.2.
2226 Face specifications earlier in lists take precedence over later
2230 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2231 int err_msgs
, struct named_merge_point
*named_merge_points
)
2233 int ok
= 1; /* Succeed without an error? */
2235 if (CONSP (face_ref
))
2237 Lisp_Object first
= XCAR (face_ref
);
2239 if (EQ (first
, Qforeground_color
)
2240 || EQ (first
, Qbackground_color
))
2242 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2243 . COLOR). COLOR must be a string. */
2244 Lisp_Object color_name
= XCDR (face_ref
);
2245 Lisp_Object color
= first
;
2247 if (STRINGP (color_name
))
2249 if (EQ (color
, Qforeground_color
))
2250 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2252 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2257 add_to_log ("Invalid face color", color_name
, Qnil
);
2261 else if (SYMBOLP (first
)
2262 && *SDATA (SYMBOL_NAME (first
)) == ':')
2264 /* Assume this is the property list form. */
2265 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2267 Lisp_Object keyword
= XCAR (face_ref
);
2268 Lisp_Object value
= XCAR (XCDR (face_ref
));
2271 /* Specifying `unspecified' is a no-op. */
2272 if (EQ (value
, Qunspecified
))
2274 else if (EQ (keyword
, QCfamily
))
2276 if (STRINGP (value
))
2278 to
[LFACE_FAMILY_INDEX
] = value
;
2279 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2284 else if (EQ (keyword
, QCfoundry
))
2286 if (STRINGP (value
))
2288 to
[LFACE_FOUNDRY_INDEX
] = value
;
2289 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2294 else if (EQ (keyword
, QCheight
))
2296 Lisp_Object new_height
=
2297 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2299 if (! NILP (new_height
))
2301 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2302 font_clear_prop (to
, FONT_SIZE_INDEX
);
2307 else if (EQ (keyword
, QCweight
))
2309 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2311 to
[LFACE_WEIGHT_INDEX
] = value
;
2312 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2317 else if (EQ (keyword
, QCslant
))
2319 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2321 to
[LFACE_SLANT_INDEX
] = value
;
2322 font_clear_prop (to
, FONT_SLANT_INDEX
);
2327 else if (EQ (keyword
, QCunderline
))
2333 to
[LFACE_UNDERLINE_INDEX
] = value
;
2337 else if (EQ (keyword
, QCoverline
))
2342 to
[LFACE_OVERLINE_INDEX
] = value
;
2346 else if (EQ (keyword
, QCstrike_through
))
2351 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2355 else if (EQ (keyword
, QCbox
))
2358 value
= make_number (1);
2359 if (INTEGERP (value
)
2363 to
[LFACE_BOX_INDEX
] = value
;
2367 else if (EQ (keyword
, QCinverse_video
)
2368 || EQ (keyword
, QCreverse_video
))
2370 if (EQ (value
, Qt
) || NILP (value
))
2371 to
[LFACE_INVERSE_INDEX
] = value
;
2375 else if (EQ (keyword
, QCforeground
))
2377 if (STRINGP (value
))
2378 to
[LFACE_FOREGROUND_INDEX
] = value
;
2382 else if (EQ (keyword
, QCdistant_foreground
))
2384 if (STRINGP (value
))
2385 to
[LFACE_DISTANT_FOREGROUND_INDEX
] = value
;
2389 else if (EQ (keyword
, QCbackground
))
2391 if (STRINGP (value
))
2392 to
[LFACE_BACKGROUND_INDEX
] = value
;
2396 else if (EQ (keyword
, QCstipple
))
2398 #if defined (HAVE_WINDOW_SYSTEM)
2399 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2400 if (!NILP (pixmap_p
))
2401 to
[LFACE_STIPPLE_INDEX
] = value
;
2404 #endif /* HAVE_WINDOW_SYSTEM */
2406 else if (EQ (keyword
, QCwidth
))
2408 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2410 to
[LFACE_SWIDTH_INDEX
] = value
;
2411 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2416 else if (EQ (keyword
, QCfont
))
2419 to
[LFACE_FONT_INDEX
] = value
;
2423 else if (EQ (keyword
, QCinherit
))
2425 /* This is not really very useful; it's just like a
2426 normal face reference. */
2427 if (! merge_face_ref (f
, value
, to
,
2428 err_msgs
, named_merge_points
))
2436 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2440 face_ref
= XCDR (XCDR (face_ref
));
2445 /* This is a list of face refs. Those at the beginning of the
2446 list take precedence over what follows, so we have to merge
2447 from the end backwards. */
2448 Lisp_Object next
= XCDR (face_ref
);
2451 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2453 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2459 /* FACE_REF ought to be a face name. */
2460 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2461 if (!ok
&& err_msgs
)
2462 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2469 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2470 Sinternal_make_lisp_face
, 1, 2, 0,
2471 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2472 If FACE was not known as a face before, create a new one.
2473 If optional argument FRAME is specified, make a frame-local face
2474 for that frame. Otherwise operate on the global face definition.
2475 Value is a vector of face attributes. */)
2476 (Lisp_Object face
, Lisp_Object frame
)
2478 Lisp_Object global_lface
, lface
;
2482 CHECK_SYMBOL (face
);
2483 global_lface
= lface_from_face_name (NULL
, face
, 0);
2487 CHECK_LIVE_FRAME (frame
);
2489 lface
= lface_from_face_name (f
, face
, 0);
2492 f
= NULL
, lface
= Qnil
;
2494 /* Add a global definition if there is none. */
2495 if (NILP (global_lface
))
2497 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2499 ASET (global_lface
, 0, Qface
);
2500 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2501 Vface_new_frame_defaults
);
2503 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2504 face id to Lisp face is given by the vector lface_id_to_name.
2505 The mapping from Lisp face to Lisp face id is given by the
2506 property `face' of the Lisp face name. */
2507 if (next_lface_id
== lface_id_to_name_size
)
2509 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2510 sizeof *lface_id_to_name
);
2512 lface_id_to_name
[next_lface_id
] = face
;
2513 Fput (face
, Qface
, make_number (next_lface_id
));
2517 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2518 ASET (global_lface
, i
, Qunspecified
);
2520 /* Add a frame-local definition. */
2525 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2527 ASET (lface
, 0, Qface
);
2528 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2531 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2532 ASET (lface
, i
, Qunspecified
);
2535 lface
= global_lface
;
2537 /* Changing a named face means that all realized faces depending on
2538 that face are invalid. Since we cannot tell which realized faces
2539 depend on the face, make sure they are all removed. This is done
2540 by incrementing face_change_count. The next call to
2541 init_iterator will then free realized faces. */
2542 if (NILP (Fget (face
, Qface_no_inherit
)))
2544 ++face_change_count
;
2545 windows_or_buffers_changed
= 54;
2548 eassert (LFACEP (lface
));
2549 check_lface (lface
);
2554 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2555 Sinternal_lisp_face_p
, 1, 2, 0,
2556 doc
: /* Return non-nil if FACE names a face.
2557 FACE should be a symbol or string.
2558 If optional second argument FRAME is non-nil, check for the
2559 existence of a frame-local face with name FACE on that frame.
2560 Otherwise check for the existence of a global face. */)
2561 (Lisp_Object face
, Lisp_Object frame
)
2565 face
= resolve_face_name (face
, 1);
2569 CHECK_LIVE_FRAME (frame
);
2570 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2573 lface
= lface_from_face_name (NULL
, face
, 0);
2579 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2580 Sinternal_copy_lisp_face
, 4, 4, 0,
2581 doc
: /* Copy face FROM to TO.
2582 If FRAME is t, copy the global face definition of FROM.
2583 Otherwise, copy the frame-local definition of FROM on FRAME.
2584 If NEW-FRAME is a frame, copy that data into the frame-local
2585 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2586 FRAME controls where the data is copied to.
2588 The value is TO. */)
2589 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2591 Lisp_Object lface
, copy
;
2593 CHECK_SYMBOL (from
);
2598 /* Copy global definition of FROM. We don't make copies of
2599 strings etc. because 20.2 didn't do it either. */
2600 lface
= lface_from_face_name (NULL
, from
, 1);
2601 copy
= Finternal_make_lisp_face (to
, Qnil
);
2605 /* Copy frame-local definition of FROM. */
2606 if (NILP (new_frame
))
2608 CHECK_LIVE_FRAME (frame
);
2609 CHECK_LIVE_FRAME (new_frame
);
2610 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2611 copy
= Finternal_make_lisp_face (to
, new_frame
);
2614 vcopy (copy
, 0, XVECTOR (lface
)->contents
, LFACE_VECTOR_SIZE
);
2616 /* Changing a named face means that all realized faces depending on
2617 that face are invalid. Since we cannot tell which realized faces
2618 depend on the face, make sure they are all removed. This is done
2619 by incrementing face_change_count. The next call to
2620 init_iterator will then free realized faces. */
2621 if (NILP (Fget (to
, Qface_no_inherit
)))
2623 ++face_change_count
;
2624 windows_or_buffers_changed
= 55;
2631 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2632 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2633 doc
: /* Set attribute ATTR of FACE to VALUE.
2634 FRAME being a frame means change the face on that frame.
2635 FRAME nil means change the face of the selected frame.
2636 FRAME t means change the default for new frames.
2637 FRAME 0 means change the face on all frames, and change the default
2639 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2642 Lisp_Object old_value
= Qnil
;
2643 /* Set one of enum font_property_index (> 0) if ATTR is one of
2644 font-related attributes other than QCfont and QCfontset. */
2645 enum font_property_index prop_index
= 0;
2647 CHECK_SYMBOL (face
);
2648 CHECK_SYMBOL (attr
);
2650 face
= resolve_face_name (face
, 1);
2652 /* If FRAME is 0, change face on all frames, and change the
2653 default for new frames. */
2654 if (INTEGERP (frame
) && XINT (frame
) == 0)
2657 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2658 FOR_EACH_FRAME (tail
, frame
)
2659 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2663 /* Set lface to the Lisp attribute vector of FACE. */
2666 lface
= lface_from_face_name (NULL
, face
, 1);
2668 /* When updating face-new-frame-defaults, we put :ignore-defface
2669 where the caller wants `unspecified'. This forces the frame
2670 defaults to ignore the defface value. Otherwise, the defface
2671 will take effect, which is generally not what is intended.
2672 The value of that attribute will be inherited from some other
2673 face during face merging. See internal_merge_in_global_face. */
2674 if (UNSPECIFIEDP (value
))
2675 value
= QCignore_defface
;
2680 frame
= selected_frame
;
2682 CHECK_LIVE_FRAME (frame
);
2683 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2685 /* If a frame-local face doesn't exist yet, create one. */
2687 lface
= Finternal_make_lisp_face (face
, frame
);
2690 if (EQ (attr
, QCfamily
))
2692 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2694 CHECK_STRING (value
);
2695 if (SCHARS (value
) == 0)
2696 signal_error ("Invalid face family", value
);
2698 old_value
= LFACE_FAMILY (lface
);
2699 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2700 prop_index
= FONT_FAMILY_INDEX
;
2702 else if (EQ (attr
, QCfoundry
))
2704 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2706 CHECK_STRING (value
);
2707 if (SCHARS (value
) == 0)
2708 signal_error ("Invalid face foundry", value
);
2710 old_value
= LFACE_FOUNDRY (lface
);
2711 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2712 prop_index
= FONT_FOUNDRY_INDEX
;
2714 else if (EQ (attr
, QCheight
))
2716 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2718 if (EQ (face
, Qdefault
))
2720 /* The default face must have an absolute size. */
2721 if (!INTEGERP (value
) || XINT (value
) <= 0)
2722 signal_error ("Default face height not absolute and positive",
2727 /* For non-default faces, do a test merge with a random
2728 height to see if VALUE's ok. */
2729 Lisp_Object test
= merge_face_heights (value
,
2732 if (!INTEGERP (test
) || XINT (test
) <= 0)
2733 signal_error ("Face height does not produce a positive integer",
2738 old_value
= LFACE_HEIGHT (lface
);
2739 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2740 prop_index
= FONT_SIZE_INDEX
;
2742 else if (EQ (attr
, QCweight
))
2744 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2746 CHECK_SYMBOL (value
);
2747 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2748 signal_error ("Invalid face weight", value
);
2750 old_value
= LFACE_WEIGHT (lface
);
2751 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2752 prop_index
= FONT_WEIGHT_INDEX
;
2754 else if (EQ (attr
, QCslant
))
2756 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2758 CHECK_SYMBOL (value
);
2759 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2760 signal_error ("Invalid face slant", value
);
2762 old_value
= LFACE_SLANT (lface
);
2763 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2764 prop_index
= FONT_SLANT_INDEX
;
2766 else if (EQ (attr
, QCunderline
))
2770 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2772 else if (NILP (value
) || EQ (value
, Qt
))
2774 else if (STRINGP (value
) && SCHARS (value
) > 0)
2776 else if (CONSP (value
))
2778 Lisp_Object key
, val
, list
;
2781 /* FIXME? This errs on the side of acceptance. Eg it accepts:
2782 (defface foo '((t :underline 'foo) "doc")
2783 Maybe this is intentional, maybe it isn't.
2784 Non-nil symbols other than t are not documented as being valid.
2785 Eg compare with inverse-video, which explicitly rejects them.
2789 while (!NILP (CAR_SAFE(list
)))
2791 key
= CAR_SAFE (list
);
2792 list
= CDR_SAFE (list
);
2793 val
= CAR_SAFE (list
);
2794 list
= CDR_SAFE (list
);
2796 if (NILP (key
) || NILP (val
))
2802 else if (EQ (key
, QCcolor
)
2803 && !(EQ (val
, Qforeground_color
)
2804 || (STRINGP (val
) && SCHARS (val
) > 0)))
2810 else if (EQ (key
, QCstyle
)
2811 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2820 signal_error ("Invalid face underline", value
);
2822 old_value
= LFACE_UNDERLINE (lface
);
2823 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2825 else if (EQ (attr
, QCoverline
))
2827 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2828 if ((SYMBOLP (value
)
2830 && !EQ (value
, Qnil
))
2831 /* Overline color. */
2833 && SCHARS (value
) == 0))
2834 signal_error ("Invalid face overline", value
);
2836 old_value
= LFACE_OVERLINE (lface
);
2837 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2839 else if (EQ (attr
, QCstrike_through
))
2841 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2842 if ((SYMBOLP (value
)
2844 && !EQ (value
, Qnil
))
2845 /* Strike-through color. */
2847 && SCHARS (value
) == 0))
2848 signal_error ("Invalid face strike-through", value
);
2850 old_value
= LFACE_STRIKE_THROUGH (lface
);
2851 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2853 else if (EQ (attr
, QCbox
))
2857 /* Allow t meaning a simple box of width 1 in foreground color
2860 value
= make_number (1);
2862 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2864 else if (NILP (value
))
2866 else if (INTEGERP (value
))
2867 valid_p
= XINT (value
) != 0;
2868 else if (STRINGP (value
))
2869 valid_p
= SCHARS (value
) > 0;
2870 else if (CONSP (value
))
2886 if (EQ (k
, QCline_width
))
2888 if (!INTEGERP (v
) || XINT (v
) == 0)
2891 else if (EQ (k
, QCcolor
))
2893 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
2896 else if (EQ (k
, QCstyle
))
2898 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
2905 valid_p
= NILP (tem
);
2911 signal_error ("Invalid face box", value
);
2913 old_value
= LFACE_BOX (lface
);
2914 ASET (lface
, LFACE_BOX_INDEX
, value
);
2916 else if (EQ (attr
, QCinverse_video
)
2917 || EQ (attr
, QCreverse_video
))
2919 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2921 CHECK_SYMBOL (value
);
2922 if (!EQ (value
, Qt
) && !NILP (value
))
2923 signal_error ("Invalid inverse-video face attribute value", value
);
2925 old_value
= LFACE_INVERSE (lface
);
2926 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
2928 else if (EQ (attr
, QCforeground
))
2930 /* Compatibility with 20.x. */
2932 value
= Qunspecified
;
2933 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2935 /* Don't check for valid color names here because it depends
2936 on the frame (display) whether the color will be valid
2937 when the face is realized. */
2938 CHECK_STRING (value
);
2939 if (SCHARS (value
) == 0)
2940 signal_error ("Empty foreground color value", value
);
2942 old_value
= LFACE_FOREGROUND (lface
);
2943 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
2945 else if (EQ (attr
, QCdistant_foreground
))
2947 /* Compatibility with 20.x. */
2949 value
= Qunspecified
;
2950 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2952 /* Don't check for valid color names here because it depends
2953 on the frame (display) whether the color will be valid
2954 when the face is realized. */
2955 CHECK_STRING (value
);
2956 if (SCHARS (value
) == 0)
2957 signal_error ("Empty distant-foreground color value", value
);
2959 old_value
= LFACE_DISTANT_FOREGROUND (lface
);
2960 ASET (lface
, LFACE_DISTANT_FOREGROUND_INDEX
, value
);
2962 else if (EQ (attr
, QCbackground
))
2964 /* Compatibility with 20.x. */
2966 value
= Qunspecified
;
2967 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2969 /* Don't check for valid color names here because it depends
2970 on the frame (display) whether the color will be valid
2971 when the face is realized. */
2972 CHECK_STRING (value
);
2973 if (SCHARS (value
) == 0)
2974 signal_error ("Empty background color value", value
);
2976 old_value
= LFACE_BACKGROUND (lface
);
2977 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
2979 else if (EQ (attr
, QCstipple
))
2981 #if defined (HAVE_WINDOW_SYSTEM)
2982 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
2984 && NILP (Fbitmap_spec_p (value
)))
2985 signal_error ("Invalid stipple attribute", value
);
2986 old_value
= LFACE_STIPPLE (lface
);
2987 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
2988 #endif /* HAVE_WINDOW_SYSTEM */
2990 else if (EQ (attr
, QCwidth
))
2992 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2994 CHECK_SYMBOL (value
);
2995 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
2996 signal_error ("Invalid face width", value
);
2998 old_value
= LFACE_SWIDTH (lface
);
2999 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3000 prop_index
= FONT_WIDTH_INDEX
;
3002 else if (EQ (attr
, QCfont
))
3004 #ifdef HAVE_WINDOW_SYSTEM
3005 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3007 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3011 old_value
= LFACE_FONT (lface
);
3012 if (! FONTP (value
))
3014 if (STRINGP (value
))
3016 Lisp_Object name
= value
;
3017 int fontset
= fs_query_fontset (name
, 0);
3020 name
= fontset_ascii (fontset
);
3021 value
= font_spec_from_name (name
);
3023 signal_error ("Invalid font name", name
);
3026 signal_error ("Invalid font or font-spec", value
);
3029 f
= XFRAME (selected_frame
);
3034 If frame is t, and selected frame is a tty frame, the font
3035 can't be realized. An improvement would be to loop over frames
3036 for a non-tty frame and use that. See discussion in Bug#18573.
3037 For a daemon, frame may be an initial frame (Bug#18869). */
3038 if (FRAME_WINDOW_P (f
))
3040 if (! FONT_OBJECT_P (value
))
3042 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3043 Lisp_Object font_object
;
3045 font_object
= font_load_for_lface (f
, attrs
, value
);
3046 if (NILP (font_object
))
3047 signal_error ("Font not available", value
);
3048 value
= font_object
;
3050 set_lface_from_font (f
, lface
, value
, 1);
3054 ASET (lface
, LFACE_FONT_INDEX
, value
);
3056 #endif /* HAVE_WINDOW_SYSTEM */
3058 else if (EQ (attr
, QCfontset
))
3060 #ifdef HAVE_WINDOW_SYSTEM
3061 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3065 old_value
= LFACE_FONTSET (lface
);
3066 tmp
= Fquery_fontset (value
, Qnil
);
3068 signal_error ("Invalid fontset name", value
);
3069 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3071 #endif /* HAVE_WINDOW_SYSTEM */
3073 else if (EQ (attr
, QCinherit
))
3076 if (SYMBOLP (value
))
3079 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3080 if (!SYMBOLP (XCAR (tail
)))
3083 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3085 signal_error ("Invalid face inheritance", value
);
3087 else if (EQ (attr
, QCbold
))
3089 old_value
= LFACE_WEIGHT (lface
);
3090 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3091 prop_index
= FONT_WEIGHT_INDEX
;
3093 else if (EQ (attr
, QCitalic
))
3096 old_value
= LFACE_SLANT (lface
);
3097 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3098 prop_index
= FONT_SLANT_INDEX
;
3101 signal_error ("Invalid face attribute name", attr
);
3105 /* If a font-related attribute other than QCfont and QCfontset
3106 is specified, and if the original QCfont attribute has a font
3107 (font-spec or font-object), set the corresponding property in
3108 the font to nil so that the font selector doesn't think that
3109 the attribute is mandatory. Also, clear the average
3111 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3114 /* Changing a named face means that all realized faces depending on
3115 that face are invalid. Since we cannot tell which realized faces
3116 depend on the face, make sure they are all removed. This is done
3117 by incrementing face_change_count. The next call to
3118 init_iterator will then free realized faces. */
3120 && NILP (Fget (face
, Qface_no_inherit
))
3121 && NILP (Fequal (old_value
, value
)))
3123 ++face_change_count
;
3124 windows_or_buffers_changed
= 56;
3127 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3128 && NILP (Fequal (old_value
, value
)))
3134 if (EQ (face
, Qdefault
))
3136 #ifdef HAVE_WINDOW_SYSTEM
3137 /* Changed font-related attributes of the `default' face are
3138 reflected in changed `font' frame parameters. */
3140 && (prop_index
|| EQ (attr
, QCfont
))
3141 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3142 set_font_frame_param (frame
, lface
);
3144 #endif /* HAVE_WINDOW_SYSTEM */
3146 if (EQ (attr
, QCforeground
))
3147 param
= Qforeground_color
;
3148 else if (EQ (attr
, QCbackground
))
3149 param
= Qbackground_color
;
3151 #ifdef HAVE_WINDOW_SYSTEM
3153 else if (EQ (face
, Qscroll_bar
))
3155 /* Changing the colors of `scroll-bar' sets frame parameters
3156 `scroll-bar-foreground' and `scroll-bar-background'. */
3157 if (EQ (attr
, QCforeground
))
3158 param
= Qscroll_bar_foreground
;
3159 else if (EQ (attr
, QCbackground
))
3160 param
= Qscroll_bar_background
;
3162 #endif /* not HAVE_NTGUI */
3163 else if (EQ (face
, Qborder
))
3165 /* Changing background color of `border' sets frame parameter
3167 if (EQ (attr
, QCbackground
))
3168 param
= Qborder_color
;
3170 else if (EQ (face
, Qcursor
))
3172 /* Changing background color of `cursor' sets frame parameter
3174 if (EQ (attr
, QCbackground
))
3175 param
= Qcursor_color
;
3177 else if (EQ (face
, Qmouse
))
3179 /* Changing background color of `mouse' sets frame parameter
3181 if (EQ (attr
, QCbackground
))
3182 param
= Qmouse_color
;
3184 #endif /* HAVE_WINDOW_SYSTEM */
3185 else if (EQ (face
, Qmenu
))
3187 /* Indicate that we have to update the menu bar when realizing
3188 faces on FRAME. FRAME t change the default for new frames.
3189 We do this by setting the flag in new face caches. */
3192 struct frame
*f
= XFRAME (frame
);
3193 if (FRAME_FACE_CACHE (f
) == NULL
)
3194 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3195 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3198 menu_face_changed_default
= 1;
3204 /* Update `default-frame-alist', which is used for new frames. */
3206 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3209 /* Update the current frame's parameters. */
3212 cons
= XCAR (Vparam_value_alist
);
3213 XSETCAR (cons
, param
);
3214 XSETCDR (cons
, value
);
3215 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3224 /* Update the corresponding face when frame parameter PARAM on frame F
3225 has been assigned the value NEW_VALUE. */
3228 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3229 Lisp_Object new_value
)
3231 Lisp_Object face
= Qnil
;
3234 /* If there are no faces yet, give up. This is the case when called
3235 from Fx_create_frame, and we do the necessary things later in
3236 face-set-after-frame-defaults. */
3237 if (NILP (f
->face_alist
))
3240 if (EQ (param
, Qforeground_color
))
3243 lface
= lface_from_face_name (f
, face
, 1);
3244 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3245 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3246 realize_basic_faces (f
);
3248 else if (EQ (param
, Qbackground_color
))
3252 /* Changing the background color might change the background
3253 mode, so that we have to load new defface specs.
3254 Call frame-set-background-mode to do that. */
3255 XSETFRAME (frame
, f
);
3256 call1 (Qframe_set_background_mode
, frame
);
3259 lface
= lface_from_face_name (f
, face
, 1);
3260 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3261 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3262 realize_basic_faces (f
);
3264 #ifdef HAVE_WINDOW_SYSTEM
3265 else if (EQ (param
, Qborder_color
))
3268 lface
= lface_from_face_name (f
, face
, 1);
3269 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3270 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3272 else if (EQ (param
, Qcursor_color
))
3275 lface
= lface_from_face_name (f
, face
, 1);
3276 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3277 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3279 else if (EQ (param
, Qmouse_color
))
3282 lface
= lface_from_face_name (f
, face
, 1);
3283 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3284 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3288 /* Changing a named face means that all realized faces depending on
3289 that face are invalid. Since we cannot tell which realized faces
3290 depend on the face, make sure they are all removed. This is done
3291 by incrementing face_change_count. The next call to
3292 init_iterator will then free realized faces. */
3294 && NILP (Fget (face
, Qface_no_inherit
)))
3296 ++face_change_count
;
3297 windows_or_buffers_changed
= 57;
3302 #ifdef HAVE_WINDOW_SYSTEM
3304 /* Set the `font' frame parameter of FRAME determined from the
3305 font-object set in `default' face attributes LFACE. */
3308 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3310 struct frame
*f
= XFRAME (frame
);
3313 if (FRAME_WINDOW_P (f
)
3314 /* Don't do anything if the font is `unspecified'. This can
3315 happen during frame creation. */
3316 && (font
= LFACE_FONT (lface
),
3317 ! UNSPECIFIEDP (font
)))
3319 if (FONT_SPEC_P (font
))
3321 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3324 ASET (lface
, LFACE_FONT_INDEX
, font
);
3326 f
->default_face_done_p
= 0;
3327 AUTO_FRAME_ARG (arg
, Qfont
, font
);
3328 Fmodify_frame_parameters (frame
, arg
);
3332 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3333 Sinternal_face_x_get_resource
, 2, 3, 0,
3334 doc
: /* Get the value of X resource RESOURCE, class CLASS.
3335 Returned value is for the display of frame FRAME. If FRAME is not
3336 specified or nil, use selected frame. This function exists because
3337 ordinary `x-get-resource' doesn't take a frame argument. */)
3338 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3340 Lisp_Object value
= Qnil
;
3343 CHECK_STRING (resource
);
3344 CHECK_STRING (class);
3345 f
= decode_live_frame (frame
);
3347 value
= display_x_get_resource (FRAME_DISPLAY_INFO (f
),
3348 resource
, class, Qnil
, Qnil
);
3354 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3355 If VALUE is "on" or "true", return t. If VALUE is "off" or
3356 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3357 error; if SIGNAL_P is zero, return 0. */
3360 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3362 Lisp_Object result
= make_number (0);
3364 eassert (STRINGP (value
));
3366 if (xstrcasecmp (SSDATA (value
), "on") == 0
3367 || xstrcasecmp (SSDATA (value
), "true") == 0)
3369 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3370 || xstrcasecmp (SSDATA (value
), "false") == 0)
3372 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3373 result
= Qunspecified
;
3375 signal_error ("Invalid face attribute value from X resource", value
);
3381 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3382 Finternal_set_lisp_face_attribute_from_resource
,
3383 Sinternal_set_lisp_face_attribute_from_resource
,
3384 3, 4, 0, doc
: /* */)
3385 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3387 CHECK_SYMBOL (face
);
3388 CHECK_SYMBOL (attr
);
3389 CHECK_STRING (value
);
3391 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3392 value
= Qunspecified
;
3393 else if (EQ (attr
, QCheight
))
3395 value
= Fstring_to_number (value
, make_number (10));
3396 if (XINT (value
) <= 0)
3397 signal_error ("Invalid face height from X resource", value
);
3399 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3400 value
= face_boolean_x_resource_value (value
, 1);
3401 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3402 value
= intern (SSDATA (value
));
3403 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3404 value
= face_boolean_x_resource_value (value
, 1);
3405 else if (EQ (attr
, QCunderline
)
3406 || EQ (attr
, QCoverline
)
3407 || EQ (attr
, QCstrike_through
))
3409 Lisp_Object boolean_value
;
3411 /* If the result of face_boolean_x_resource_value is t or nil,
3412 VALUE does NOT specify a color. */
3413 boolean_value
= face_boolean_x_resource_value (value
, 0);
3414 if (SYMBOLP (boolean_value
))
3415 value
= boolean_value
;
3417 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3418 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3420 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3423 #endif /* HAVE_WINDOW_SYSTEM */
3426 /***********************************************************************
3428 ***********************************************************************/
3430 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3432 /* Make menus on frame F appear as specified by the `menu' face. */
3435 x_update_menu_appearance (struct frame
*f
)
3437 struct x_display_info
*dpyinfo
= FRAME_DISPLAY_INFO (f
);
3441 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3446 ptrdiff_t bufsize
= sizeof line
;
3447 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3448 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3449 const char *myname
= SSDATA (Vx_resource_name
);
3452 const char *popup_path
= "popup_menu";
3454 const char *popup_path
= "menu.popup";
3457 if (STRINGP (LFACE_FOREGROUND (lface
)))
3459 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3461 SDATA (LFACE_FOREGROUND (lface
)));
3462 XrmPutLineResource (&rdb
, line
);
3463 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3464 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3465 XrmPutLineResource (&rdb
, line
);
3469 if (STRINGP (LFACE_BACKGROUND (lface
)))
3471 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3473 SDATA (LFACE_BACKGROUND (lface
)));
3474 XrmPutLineResource (&rdb
, line
);
3476 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3477 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3478 XrmPutLineResource (&rdb
, line
);
3483 /* On Solaris 5.8, it's been reported that the `menu' face
3484 can be unspecified here, during startup. Why this
3485 happens remains unknown. -- cyd */
3486 && FONTP (LFACE_FONT (lface
))
3487 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3488 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3489 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3490 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3491 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3492 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3494 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3496 const char *suffix
= "List";
3499 #if defined HAVE_X_I18N
3501 const char *suffix
= "Set";
3503 const char *suffix
= "";
3510 #if defined HAVE_X_I18N
3511 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3513 char *fontsetname
= SSDATA (xlfd
);
3515 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3516 myname
, suffix
, fontsetname
);
3517 XrmPutLineResource (&rdb
, line
);
3519 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3520 myname
, popup_path
, suffix
, fontsetname
);
3521 XrmPutLineResource (&rdb
, line
);
3523 if (fontsetname
!= SSDATA (xlfd
))
3524 xfree (fontsetname
);
3528 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3529 free_frame_menubar (f
);
3536 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3539 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3540 Sface_attribute_relative_p
,
3542 doc
: /* Check whether a face attribute value is relative.
3543 Specifically, this function returns t if the attribute ATTRIBUTE
3544 with the value VALUE is relative.
3546 A relative value is one that doesn't entirely override whatever is
3547 inherited from another face. For most possible attributes,
3548 the only relative value that users see is `unspecified'.
3549 However, for :height, floating point values are also relative. */)
3550 (Lisp_Object attribute
, Lisp_Object value
)
3552 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3554 else if (EQ (attribute
, QCheight
))
3555 return INTEGERP (value
) ? Qnil
: Qt
;
3560 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3562 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3563 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3564 the result will be absolute, otherwise it will be relative. */)
3565 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3567 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3569 else if (EQ (attribute
, QCheight
))
3570 return merge_face_heights (value1
, value2
, value1
);
3576 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3577 Sinternal_get_lisp_face_attribute
,
3579 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3580 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3581 face attribute name, signal an error.
3582 If the optional argument FRAME is given, report on face SYMBOL in that
3583 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3584 frames). If FRAME is omitted or nil, use the selected frame. */)
3585 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3587 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3588 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 1), value
= Qnil
;
3590 CHECK_SYMBOL (symbol
);
3591 CHECK_SYMBOL (keyword
);
3593 if (EQ (keyword
, QCfamily
))
3594 value
= LFACE_FAMILY (lface
);
3595 else if (EQ (keyword
, QCfoundry
))
3596 value
= LFACE_FOUNDRY (lface
);
3597 else if (EQ (keyword
, QCheight
))
3598 value
= LFACE_HEIGHT (lface
);
3599 else if (EQ (keyword
, QCweight
))
3600 value
= LFACE_WEIGHT (lface
);
3601 else if (EQ (keyword
, QCslant
))
3602 value
= LFACE_SLANT (lface
);
3603 else if (EQ (keyword
, QCunderline
))
3604 value
= LFACE_UNDERLINE (lface
);
3605 else if (EQ (keyword
, QCoverline
))
3606 value
= LFACE_OVERLINE (lface
);
3607 else if (EQ (keyword
, QCstrike_through
))
3608 value
= LFACE_STRIKE_THROUGH (lface
);
3609 else if (EQ (keyword
, QCbox
))
3610 value
= LFACE_BOX (lface
);
3611 else if (EQ (keyword
, QCinverse_video
)
3612 || EQ (keyword
, QCreverse_video
))
3613 value
= LFACE_INVERSE (lface
);
3614 else if (EQ (keyword
, QCforeground
))
3615 value
= LFACE_FOREGROUND (lface
);
3616 else if (EQ (keyword
, QCdistant_foreground
))
3617 value
= LFACE_DISTANT_FOREGROUND (lface
);
3618 else if (EQ (keyword
, QCbackground
))
3619 value
= LFACE_BACKGROUND (lface
);
3620 else if (EQ (keyword
, QCstipple
))
3621 value
= LFACE_STIPPLE (lface
);
3622 else if (EQ (keyword
, QCwidth
))
3623 value
= LFACE_SWIDTH (lface
);
3624 else if (EQ (keyword
, QCinherit
))
3625 value
= LFACE_INHERIT (lface
);
3626 else if (EQ (keyword
, QCfont
))
3627 value
= LFACE_FONT (lface
);
3628 else if (EQ (keyword
, QCfontset
))
3629 value
= LFACE_FONTSET (lface
);
3631 signal_error ("Invalid face attribute name", keyword
);
3633 if (IGNORE_DEFFACE_P (value
))
3634 return Qunspecified
;
3640 DEFUN ("internal-lisp-face-attribute-values",
3641 Finternal_lisp_face_attribute_values
,
3642 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3643 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3644 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3647 Lisp_Object result
= Qnil
;
3649 CHECK_SYMBOL (attr
);
3651 if (EQ (attr
, QCunderline
) || EQ (attr
, QCoverline
)
3652 || EQ (attr
, QCstrike_through
)
3653 || EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3654 result
= list2 (Qt
, Qnil
);
3660 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3661 Sinternal_merge_in_global_face
, 2, 2, 0,
3662 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3663 Default face attributes override any local face attributes. */)
3664 (Lisp_Object face
, Lisp_Object frame
)
3667 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3668 struct frame
*f
= XFRAME (frame
);
3670 CHECK_LIVE_FRAME (frame
);
3671 global_lface
= lface_from_face_name (NULL
, face
, 1);
3672 local_lface
= lface_from_face_name (f
, face
, 0);
3673 if (NILP (local_lface
))
3674 local_lface
= Finternal_make_lisp_face (face
, frame
);
3676 /* Make every specified global attribute override the local one.
3677 BEWARE!! This is only used from `face-set-after-frame-default' where
3678 the local frame is defined from default specs in `face-defface-spec'
3679 and those should be overridden by global settings. Hence the strange
3680 "global before local" priority. */
3681 lvec
= XVECTOR (local_lface
)->contents
;
3682 gvec
= XVECTOR (global_lface
)->contents
;
3683 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3684 if (IGNORE_DEFFACE_P (gvec
[i
]))
3685 ASET (local_lface
, i
, Qunspecified
);
3686 else if (! UNSPECIFIEDP (gvec
[i
]))
3687 ASET (local_lface
, i
, AREF (global_lface
, i
));
3689 /* If the default face was changed, update the face cache and the
3690 `font' frame parameter. */
3691 if (EQ (face
, Qdefault
))
3693 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3694 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3695 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3697 /* This can be NULL (e.g., in batch mode). */
3700 /* Ensure that the face vector is fully specified by merging
3701 the previously-cached vector. */
3702 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3703 merge_face_vectors (f
, lvec
, attrs
, 0);
3704 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3705 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3707 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3708 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3709 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3710 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3711 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3712 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3713 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3716 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3717 AUTO_FRAME_ARG (arg
, Qfont
, name
);
3718 Fmodify_frame_parameters (frame
, arg
);
3721 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3723 AUTO_FRAME_ARG (arg
, Qforeground_color
,
3724 gvec
[LFACE_FOREGROUND_INDEX
]);
3725 Fmodify_frame_parameters (frame
, arg
);
3728 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3730 AUTO_FRAME_ARG (arg
, Qbackground_color
,
3731 gvec
[LFACE_BACKGROUND_INDEX
]);
3732 Fmodify_frame_parameters (frame
, arg
);
3741 /* The following function is implemented for compatibility with 20.2.
3742 The function is used in x-resolve-fonts when it is asked to
3743 return fonts with the same size as the font of a face. This is
3744 done in fontset.el. */
3746 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3747 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3748 The font name is, by default, for ASCII characters.
3749 If the optional argument FRAME is given, report on face FACE in that frame.
3750 If FRAME is t, report on the defaults for face FACE (for new frames).
3751 The font default for a face is either nil, or a list
3752 of the form (bold), (italic) or (bold italic).
3753 If FRAME is omitted or nil, use the selected frame. And, in this case,
3754 if the optional third argument CHARACTER is given,
3755 return the font name used for CHARACTER. */)
3756 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3760 Lisp_Object result
= Qnil
;
3761 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3763 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3764 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3765 result
= Fcons (Qbold
, result
);
3767 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3768 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3769 result
= Fcons (Qitalic
, result
);
3775 struct frame
*f
= decode_live_frame (frame
);
3776 int face_id
= lookup_named_face (f
, face
, 1);
3777 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3781 #ifdef HAVE_WINDOW_SYSTEM
3782 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3784 CHECK_CHARACTER (character
);
3785 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3786 fface
= FACE_FROM_ID (f
, face_id
);
3789 ? fface
->font
->props
[FONT_NAME_INDEX
]
3791 #else /* !HAVE_WINDOW_SYSTEM */
3792 return build_string (FRAME_MSDOS_P (f
)
3794 : FRAME_W32_P (f
) ? "w32term"
3801 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3802 all attributes are `equal'. Tries to be fast because this function
3803 is called quite often. */
3806 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3808 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3809 and the other is specified. */
3810 if (XTYPE (v1
) != XTYPE (v2
))
3819 if (SBYTES (v1
) != SBYTES (v2
))
3822 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3829 return !NILP (Fequal (v1
, v2
));
3834 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3835 all attributes are `equal'. Tries to be fast because this function
3836 is called quite often. */
3839 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3844 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3845 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3851 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3852 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3853 doc
: /* True if FACE1 and FACE2 are equal.
3854 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3855 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3856 If FRAME is omitted or nil, use the selected frame. */)
3857 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3861 Lisp_Object lface1
, lface2
;
3863 /* Don't use decode_window_system_frame here because this function
3864 is called before X frames exist. At that time, if FRAME is nil,
3865 selected_frame will be used which is the frame dumped with
3866 Emacs. That frame is not an X frame. */
3867 f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3869 lface1
= lface_from_face_name (f
, face1
, 1);
3870 lface2
= lface_from_face_name (f
, face2
, 1);
3871 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3872 XVECTOR (lface2
)->contents
);
3873 return equal_p
? Qt
: Qnil
;
3877 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3878 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3879 doc
: /* True if FACE has no attribute specified.
3880 If the optional argument FRAME is given, report on face FACE in that frame.
3881 If FRAME is t, report on the defaults for face FACE (for new frames).
3882 If FRAME is omitted or nil, use the selected frame. */)
3883 (Lisp_Object face
, Lisp_Object frame
)
3885 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3886 Lisp_Object lface
= lface_from_face_name (f
, face
, 1);
3889 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3890 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3893 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3897 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
3899 doc
: /* Return an alist of frame-local faces defined on FRAME.
3900 For internal use only. */)
3903 return decode_live_frame (frame
)->face_alist
;
3907 /* Return a hash code for Lisp string STRING with case ignored. Used
3908 below in computing a hash value for a Lisp face. */
3911 hash_string_case_insensitive (Lisp_Object string
)
3913 const unsigned char *s
;
3915 eassert (STRINGP (string
));
3916 for (s
= SDATA (string
); *s
; ++s
)
3917 hash
= (hash
<< 1) ^ c_tolower (*s
);
3922 /* Return a hash code for face attribute vector V. */
3925 lface_hash (Lisp_Object
*v
)
3927 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
3928 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
3929 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
3930 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
3931 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
3932 ^ XHASH (v
[LFACE_SLANT_INDEX
])
3933 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
3934 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
3937 #ifdef HAVE_WINDOW_SYSTEM
3939 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
3940 considering charsets/registries). They do if they specify the same
3941 family, point size, weight, width, slant, and font. Both
3942 LFACE1 and LFACE2 must be fully-specified. */
3945 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
3947 eassert (lface_fully_specified_p (lface1
)
3948 && lface_fully_specified_p (lface2
));
3949 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
3950 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
3951 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
3952 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
3953 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
3954 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
3955 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
3956 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
3957 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
3958 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
3959 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
3960 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
3961 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
3962 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
3966 #endif /* HAVE_WINDOW_SYSTEM */
3968 /***********************************************************************
3970 ***********************************************************************/
3972 /* Allocate and return a new realized face for Lisp face attribute
3975 static struct face
*
3976 make_realized_face (Lisp_Object
*attr
)
3978 enum { off
= offsetof (struct face
, id
) };
3979 struct face
*face
= xmalloc (sizeof *face
);
3981 memcpy (face
->lface
, attr
, sizeof face
->lface
);
3982 memset (&face
->id
, 0, sizeof *face
- off
);
3983 face
->ascii_face
= face
;
3989 /* Free realized face FACE, including its X resources. FACE may
3993 free_realized_face (struct frame
*f
, struct face
*face
)
3997 #ifdef HAVE_WINDOW_SYSTEM
3998 if (FRAME_WINDOW_P (f
))
4000 /* Free fontset of FACE if it is ASCII face. */
4001 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4002 free_face_fontset (f
, face
);
4007 font_done_for_face (f
, face
);
4008 x_free_gc (f
, face
->gc
);
4012 #ifdef HAVE_X_WINDOWS
4013 free_face_colors (f
, face
);
4014 #endif /* HAVE_X_WINDOWS */
4015 x_destroy_bitmap (f
, face
->stipple
);
4017 #endif /* HAVE_WINDOW_SYSTEM */
4023 #ifdef HAVE_WINDOW_SYSTEM
4025 /* Prepare face FACE for subsequent display on frame F. This must be called
4026 before using X resources of FACE to allocate GCs if they haven't been
4027 allocated yet or have been freed by clearing the face cache. */
4030 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4032 eassert (FRAME_WINDOW_P (f
));
4037 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4039 xgcv
.foreground
= face
->foreground
;
4040 xgcv
.background
= face
->background
;
4041 #ifdef HAVE_X_WINDOWS
4042 xgcv
.graphics_exposures
= False
;
4046 #ifdef HAVE_X_WINDOWS
4049 xgcv
.fill_style
= FillOpaqueStippled
;
4050 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4051 mask
|= GCFillStyle
| GCStipple
;
4054 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4056 font_prepare_for_face (f
, face
);
4061 #endif /* HAVE_WINDOW_SYSTEM */
4063 /* Returns the `distance' between the colors X and Y. */
4066 color_distance (XColor
*x
, XColor
*y
)
4068 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4069 Quoting from that paper:
4071 This formula has results that are very close to L*u*v* (with the
4072 modified lightness curve) and, more importantly, it is a more even
4073 algorithm: it does not have a range of colors where it suddenly
4074 gives far from optimal results.
4076 See <http://www.compuphase.com/cmetric.htm> for more info. */
4078 long r
= (x
->red
- y
->red
) >> 8;
4079 long g
= (x
->green
- y
->green
) >> 8;
4080 long b
= (x
->blue
- y
->blue
) >> 8;
4081 long r_mean
= (x
->red
+ y
->red
) >> 9;
4084 (((512 + r_mean
) * r
* r
) >> 8)
4086 + (((767 - r_mean
) * b
* b
) >> 8);
4090 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4091 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4092 COLOR1 and COLOR2 may be either strings containing the color name,
4093 or lists of the form (RED GREEN BLUE).
4094 If FRAME is unspecified or nil, the current frame is used. */)
4095 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4097 struct frame
*f
= decode_live_frame (frame
);
4098 XColor cdef1
, cdef2
;
4100 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4101 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4102 signal_error ("Invalid color", color1
);
4103 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4104 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4105 signal_error ("Invalid color", color2
);
4107 return make_number (color_distance (&cdef1
, &cdef2
));
4111 /***********************************************************************
4113 ***********************************************************************/
4115 /* Return a new face cache for frame F. */
4117 static struct face_cache
*
4118 make_face_cache (struct frame
*f
)
4120 struct face_cache
*c
= xmalloc (sizeof *c
);
4122 c
->buckets
= xzalloc (FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
);
4125 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4127 c
->menu_face_changed_p
= menu_face_changed_default
;
4131 #ifdef HAVE_WINDOW_SYSTEM
4133 /* Clear out all graphics contexts for all realized faces, except for
4134 the basic faces. This should be done from time to time just to avoid
4135 keeping too many graphics contexts that are no longer needed. */
4138 clear_face_gcs (struct face_cache
*c
)
4140 if (c
&& FRAME_WINDOW_P (c
->f
))
4143 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4145 struct face
*face
= c
->faces_by_id
[i
];
4146 if (face
&& face
->gc
)
4150 font_done_for_face (c
->f
, face
);
4151 x_free_gc (c
->f
, face
->gc
);
4159 #endif /* HAVE_WINDOW_SYSTEM */
4161 /* Free all realized faces in face cache C, including basic faces.
4162 C may be null. If faces are freed, make sure the frame's current
4163 matrix is marked invalid, so that a display caused by an expose
4164 event doesn't try to use faces we destroyed. */
4167 free_realized_faces (struct face_cache
*c
)
4172 struct frame
*f
= c
->f
;
4174 /* We must block input here because we can't process X events
4175 safely while only some faces are freed, or when the frame's
4176 current matrix still references freed faces. */
4179 for (i
= 0; i
< c
->used
; ++i
)
4181 free_realized_face (f
, c
->faces_by_id
[i
]);
4182 c
->faces_by_id
[i
] = NULL
;
4186 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4187 memset (c
->buckets
, 0, size
);
4189 /* Must do a thorough redisplay the next time. Mark current
4190 matrices as invalid because they will reference faces freed
4191 above. This function is also called when a frame is
4192 destroyed. In this case, the root window of F is nil. */
4193 if (WINDOWP (f
->root_window
))
4195 clear_current_matrices (f
);
4196 windows_or_buffers_changed
= 58;
4204 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4205 This is done after attributes of a named face have been changed,
4206 because we can't tell which realized faces depend on that face. */
4209 free_all_realized_faces (Lisp_Object frame
)
4214 FOR_EACH_FRAME (rest
, frame
)
4215 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4218 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4222 /* Free face cache C and faces in it, including their X resources. */
4225 free_face_cache (struct face_cache
*c
)
4229 free_realized_faces (c
);
4231 xfree (c
->faces_by_id
);
4237 /* Cache realized face FACE in face cache C. HASH is the hash value
4238 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4239 FACE), insert the new face to the beginning of the collision list
4240 of the face hash table of C. Otherwise, add the new face to the
4241 end of the collision list. This way, lookup_face can quickly find
4242 that a requested face is not cached. */
4245 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4247 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4251 if (face
->ascii_face
!= face
)
4253 struct face
*last
= c
->buckets
[i
];
4264 c
->buckets
[i
] = face
;
4265 face
->prev
= face
->next
= NULL
;
4271 face
->next
= c
->buckets
[i
];
4273 face
->next
->prev
= face
;
4274 c
->buckets
[i
] = face
;
4277 /* Find a free slot in C->faces_by_id and use the index of the free
4278 slot as FACE->id. */
4279 for (i
= 0; i
< c
->used
; ++i
)
4280 if (c
->faces_by_id
[i
] == NULL
)
4285 /* Check that FACE got a unique id. */
4290 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4291 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4297 #endif /* GLYPH_DEBUG */
4299 /* Maybe enlarge C->faces_by_id. */
4302 if (c
->used
== c
->size
)
4303 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4304 sizeof *c
->faces_by_id
);
4308 c
->faces_by_id
[i
] = face
;
4312 /* Remove face FACE from cache C. */
4315 uncache_face (struct face_cache
*c
, struct face
*face
)
4317 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4320 face
->prev
->next
= face
->next
;
4322 c
->buckets
[i
] = face
->next
;
4325 face
->next
->prev
= face
->prev
;
4327 c
->faces_by_id
[face
->id
] = NULL
;
4328 if (face
->id
== c
->used
)
4333 /* Look up a realized face with face attributes ATTR in the face cache
4334 of frame F. The face will be used to display ASCII characters.
4335 Value is the ID of the face found. If no suitable face is found,
4336 realize a new one. */
4339 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4341 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4346 eassert (cache
!= NULL
);
4347 check_lface_attrs (attr
);
4349 /* Look up ATTR in the face cache. */
4350 hash
= lface_hash (attr
);
4351 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4353 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4355 if (face
->ascii_face
!= face
)
4357 /* There's no more ASCII face. */
4361 if (face
->hash
== hash
4362 && lface_equal_p (face
->lface
, attr
))
4366 /* If not found, realize a new face. */
4368 face
= realize_face (cache
, attr
, -1);
4371 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4372 #endif /* GLYPH_DEBUG */
4377 #ifdef HAVE_WINDOW_SYSTEM
4378 /* Look up a realized face that has the same attributes as BASE_FACE
4379 except for the font in the face cache of frame F. If FONT-OBJECT
4380 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4381 the face has no font. Value is the ID of the face found. If no
4382 suitable face is found, realize a new one. */
4385 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4387 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4392 eassert (cache
!= NULL
);
4393 base_face
= base_face
->ascii_face
;
4394 hash
= lface_hash (base_face
->lface
);
4395 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4397 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4399 if (face
->ascii_face
== face
)
4401 if (face
->ascii_face
== base_face
4402 && face
->font
== (NILP (font_object
) ? NULL
4403 : XFONT_OBJECT (font_object
))
4404 && lface_equal_p (face
->lface
, base_face
->lface
))
4408 /* If not found, realize a new face. */
4409 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4412 #endif /* HAVE_WINDOW_SYSTEM */
4414 /* Return the face id of the realized face for named face SYMBOL on
4415 frame F suitable for displaying ASCII characters. Value is -1 if
4416 the face couldn't be determined, which might happen if the default
4417 face isn't realized and cannot be realized. */
4420 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4422 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4423 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4424 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4426 if (default_face
== NULL
)
4428 if (!realize_basic_faces (f
))
4430 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4431 if (default_face
== NULL
)
4432 emacs_abort (); /* realize_basic_faces must have set it up */
4435 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4438 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4439 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4441 return lookup_face (f
, attrs
);
4445 /* Return the display face-id of the basic face whose canonical face-id
4446 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4447 basic face has bee remapped via Vface_remapping_alist. This function is
4448 conservative: if something goes wrong, it will simply return FACE_ID
4449 rather than signal an error. */
4452 lookup_basic_face (struct frame
*f
, int face_id
)
4454 Lisp_Object name
, mapping
;
4455 int remapped_face_id
;
4457 if (NILP (Vface_remapping_alist
))
4458 return face_id
; /* Nothing to do. */
4462 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4463 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4464 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4465 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4466 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4467 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4468 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4469 case BORDER_FACE_ID
: name
= Qborder
; break;
4470 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4471 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4472 case MENU_FACE_ID
: name
= Qmenu
; break;
4475 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4478 /* Do a quick scan through Vface_remapping_alist, and return immediately
4479 if there is no remapping for face NAME. This is just an optimization
4480 for the very common no-remapping case. */
4481 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4483 return face_id
; /* Give up. */
4485 /* If there is a remapping entry, lookup the face using NAME, which will
4486 handle the remapping too. */
4487 remapped_face_id
= lookup_named_face (f
, name
, 0);
4488 if (remapped_face_id
< 0)
4489 return face_id
; /* Give up. */
4491 return remapped_face_id
;
4495 /* Return a face for charset ASCII that is like the face with id
4496 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4497 STEPS < 0 means larger. Value is the id of the face. */
4500 smaller_face (struct frame
*f
, int face_id
, int steps
)
4502 #ifdef HAVE_WINDOW_SYSTEM
4504 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4505 int pt
, last_pt
, last_height
;
4508 struct face
*new_face
;
4510 /* If not called for an X frame, just return the original face. */
4511 if (FRAME_TERMCAP_P (f
))
4514 /* Try in increments of 1/2 pt. */
4515 delta
= steps
< 0 ? 5 : -5;
4516 steps
= eabs (steps
);
4518 face
= FACE_FROM_ID (f
, face_id
);
4519 memcpy (attrs
, face
->lface
, sizeof attrs
);
4520 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4521 new_face_id
= face_id
;
4522 last_height
= FONT_HEIGHT (face
->font
);
4526 /* Give up if we cannot find a font within 10pt. */
4527 && eabs (last_pt
- pt
) < 100)
4529 /* Look up a face for a slightly smaller/larger font. */
4531 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4532 new_face_id
= lookup_face (f
, attrs
);
4533 new_face
= FACE_FROM_ID (f
, new_face_id
);
4535 /* If height changes, count that as one step. */
4536 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4537 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4540 last_height
= FONT_HEIGHT (new_face
->font
);
4547 #else /* not HAVE_WINDOW_SYSTEM */
4551 #endif /* not HAVE_WINDOW_SYSTEM */
4555 /* Return a face for charset ASCII that is like the face with id
4556 FACE_ID on frame F, but has height HEIGHT. */
4559 face_with_height (struct frame
*f
, int face_id
, int height
)
4561 #ifdef HAVE_WINDOW_SYSTEM
4563 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4565 if (FRAME_TERMCAP_P (f
)
4569 face
= FACE_FROM_ID (f
, face_id
);
4570 memcpy (attrs
, face
->lface
, sizeof attrs
);
4571 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4572 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4573 face_id
= lookup_face (f
, attrs
);
4574 #endif /* HAVE_WINDOW_SYSTEM */
4580 /* Return the face id of the realized face for named face SYMBOL on
4581 frame F suitable for displaying ASCII characters, and use
4582 attributes of the face FACE_ID for attributes that aren't
4583 completely specified by SYMBOL. This is like lookup_named_face,
4584 except that the default attributes come from FACE_ID, not from the
4585 default face. FACE_ID is assumed to be already realized. */
4588 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4591 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4592 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4593 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4598 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4601 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4602 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4603 return lookup_face (f
, attrs
);
4606 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4607 Sface_attributes_as_vector
, 1, 1, 0,
4608 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4612 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4614 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4621 /***********************************************************************
4622 Face capability testing
4623 ***********************************************************************/
4626 /* If the distance (as returned by color_distance) between two colors is
4627 less than this, then they are considered the same, for determining
4628 whether a color is supported or not. The range of values is 0-65535. */
4630 #define TTY_SAME_COLOR_THRESHOLD 10000
4632 #ifdef HAVE_WINDOW_SYSTEM
4634 /* Return true if all the face attributes in ATTRS are supported
4635 on the window-system frame F.
4637 The definition of `supported' is somewhat heuristic, but basically means
4638 that a face containing all the attributes in ATTRS, when merged with the
4639 default face for display, can be represented in a way that's
4641 \(1) different in appearance than the default face, and
4642 \(2) `close in spirit' to what the attributes specify, if not exact. */
4645 x_supports_face_attributes_p (struct frame
*f
,
4646 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4647 struct face
*def_face
)
4649 Lisp_Object
*def_attrs
= def_face
->lface
;
4651 /* Check that other specified attributes are different that the default
4653 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4654 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4655 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4656 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4657 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4658 def_attrs
[LFACE_INVERSE_INDEX
]))
4659 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4660 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4661 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4662 || (!UNSPECIFIEDP (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
])
4663 && face_attr_equal_p (attrs
[LFACE_DISTANT_FOREGROUND_INDEX
],
4664 def_attrs
[LFACE_DISTANT_FOREGROUND_INDEX
]))
4665 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4666 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4667 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4668 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4669 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4670 def_attrs
[LFACE_STIPPLE_INDEX
]))
4671 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4672 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4673 def_attrs
[LFACE_OVERLINE_INDEX
]))
4674 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4675 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4676 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4677 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4678 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4679 def_attrs
[LFACE_BOX_INDEX
])))
4682 /* Check font-related attributes, as those are the most commonly
4683 "unsupported" on a window-system (because of missing fonts). */
4684 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4685 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4686 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4687 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4688 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4689 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4693 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4696 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4698 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4700 face_id
= lookup_face (f
, merged_attrs
);
4701 face
= FACE_FROM_ID (f
, face_id
);
4704 error ("Cannot make face");
4706 /* If the font is the same, or no font is found, then not
4708 if (face
->font
== def_face
->font
4711 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4712 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4716 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4717 || face
->font
->driver
->case_sensitive
)
4719 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4720 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4721 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4722 s2
, make_number (0), Qnil
, Qt
), Qt
))
4728 /* Everything checks out, this face is supported. */
4732 #endif /* HAVE_WINDOW_SYSTEM */
4734 /* Return true if all the face attributes in ATTRS are supported
4737 The definition of `supported' is somewhat heuristic, but basically means
4738 that a face containing all the attributes in ATTRS, when merged
4739 with the default face for display, can be represented in a way that's
4741 \(1) different in appearance than the default face, and
4742 \(2) `close in spirit' to what the attributes specify, if not exact.
4744 Point (2) implies that a `:weight black' attribute will be satisfied
4745 by any terminal that can display bold, and a `:foreground "yellow"' as
4746 long as the terminal can display a yellowish color, but `:slant italic'
4747 will _not_ be satisfied by the tty display code's automatic
4748 substitution of a `dim' face for italic. */
4751 tty_supports_face_attributes_p (struct frame
*f
,
4752 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4753 struct face
*def_face
)
4756 Lisp_Object val
, fg
, bg
;
4757 XColor fg_tty_color
, fg_std_color
;
4758 XColor bg_tty_color
, bg_std_color
;
4759 unsigned test_caps
= 0;
4760 Lisp_Object
*def_attrs
= def_face
->lface
;
4762 /* First check some easy-to-check stuff; ttys support none of the
4763 following attributes, so we can just return false if any are requested
4764 (even if `nominal' values are specified, we should still return false,
4765 as that will be the same value that the default face uses). We
4766 consider :slant unsupportable on ttys, even though the face code
4767 actually `fakes' them using a dim attribute if possible. This is
4768 because the faked result is too different from what the face
4770 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4771 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4772 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4773 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4774 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4775 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4776 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4777 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4780 /* Test for terminal `capabilities' (non-color character attributes). */
4782 /* font weight (bold/dim) */
4783 val
= attrs
[LFACE_WEIGHT_INDEX
];
4784 if (!UNSPECIFIEDP (val
)
4785 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4787 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4791 if (def_weight
> 100)
4792 return 0; /* same as default */
4793 test_caps
= TTY_CAP_BOLD
;
4795 else if (weight
< 100)
4797 if (def_weight
< 100)
4798 return 0; /* same as default */
4799 test_caps
= TTY_CAP_DIM
;
4801 else if (def_weight
== 100)
4802 return 0; /* same as default */
4806 val
= attrs
[LFACE_SLANT_INDEX
];
4807 if (!UNSPECIFIEDP (val
)
4808 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4810 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4811 if (slant
== 100 || slant
== def_slant
)
4812 return 0; /* same as default */
4814 test_caps
|= TTY_CAP_ITALIC
;
4818 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4819 if (!UNSPECIFIEDP (val
))
4822 return 0; /* ttys can't use colored underlines */
4823 else if (EQ (CAR_SAFE (val
), QCstyle
) && EQ (CAR_SAFE (CDR_SAFE (val
)), Qwave
))
4824 return 0; /* ttys can't use wave underlines */
4825 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4826 return 0; /* same as default */
4828 test_caps
|= TTY_CAP_UNDERLINE
;
4832 val
= attrs
[LFACE_INVERSE_INDEX
];
4833 if (!UNSPECIFIEDP (val
))
4835 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4836 return 0; /* same as default */
4838 test_caps
|= TTY_CAP_INVERSE
;
4842 /* Color testing. */
4844 /* Check if foreground color is close enough. */
4845 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4848 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4850 if (face_attr_equal_p (fg
, def_fg
))
4851 return 0; /* same as default */
4852 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4853 return 0; /* not a valid color */
4854 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4855 > TTY_SAME_COLOR_THRESHOLD
)
4856 return 0; /* displayed color is too different */
4858 /* Make sure the color is really different than the default. */
4860 XColor def_fg_color
;
4861 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4862 && (color_distance (&fg_tty_color
, &def_fg_color
)
4863 <= TTY_SAME_COLOR_THRESHOLD
))
4868 /* Check if background color is close enough. */
4869 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4872 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4874 if (face_attr_equal_p (bg
, def_bg
))
4875 return 0; /* same as default */
4876 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4877 return 0; /* not a valid color */
4878 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4879 > TTY_SAME_COLOR_THRESHOLD
)
4880 return 0; /* displayed color is too different */
4882 /* Make sure the color is really different than the default. */
4884 XColor def_bg_color
;
4885 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4886 && (color_distance (&bg_tty_color
, &def_bg_color
)
4887 <= TTY_SAME_COLOR_THRESHOLD
))
4892 /* If both foreground and background are requested, see if the
4893 distance between them is OK. We just check to see if the distance
4894 between the tty's foreground and background is close enough to the
4895 distance between the standard foreground and background. */
4896 if (STRINGP (fg
) && STRINGP (bg
))
4899 = (color_distance (&fg_std_color
, &bg_std_color
)
4900 - color_distance (&fg_tty_color
, &bg_tty_color
));
4901 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
4902 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
4907 /* See if the capabilities we selected above are supported, with the
4909 return tty_capable_p (FRAME_TTY (f
), test_caps
);
4913 DEFUN ("display-supports-face-attributes-p",
4914 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
4916 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
4917 The optional argument DISPLAY can be a display name, a frame, or
4918 nil (meaning the selected frame's display).
4920 The definition of `supported' is somewhat heuristic, but basically means
4921 that a face containing all the attributes in ATTRIBUTES, when merged
4922 with the default face for display, can be represented in a way that's
4924 \(1) different in appearance than the default face, and
4925 \(2) `close in spirit' to what the attributes specify, if not exact.
4927 Point (2) implies that a `:weight black' attribute will be satisfied by
4928 any display that can display bold, and a `:foreground \"yellow\"' as long
4929 as it can display a yellowish color, but `:slant italic' will _not_ be
4930 satisfied by the tty display code's automatic substitution of a `dim'
4931 face for italic. */)
4932 (Lisp_Object attributes
, Lisp_Object display
)
4938 struct face
*def_face
;
4939 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4941 if (noninteractive
|| !initialized
)
4942 /* We may not be able to access low-level face information in batch
4943 mode, or before being dumped, and this function is not going to
4944 be very useful in those cases anyway, so just give up. */
4948 frame
= selected_frame
;
4949 else if (FRAMEP (display
))
4953 /* Find any frame on DISPLAY. */
4957 FOR_EACH_FRAME (tail
, frame
)
4958 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
4959 XFRAME (frame
)->param_alist
)),
4964 CHECK_LIVE_FRAME (frame
);
4967 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
4968 attrs
[i
] = Qunspecified
;
4969 merge_face_ref (f
, attributes
, attrs
, 1, 0);
4971 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4972 if (def_face
== NULL
)
4974 if (! realize_basic_faces (f
))
4975 error ("Cannot realize default face");
4976 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4977 if (def_face
== NULL
)
4978 emacs_abort (); /* realize_basic_faces must have set it up */
4981 /* Dispatch to the appropriate handler. */
4982 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
4983 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
4984 #ifdef HAVE_WINDOW_SYSTEM
4986 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
4989 return supports
? Qt
: Qnil
;
4993 /***********************************************************************
4995 ***********************************************************************/
4997 DEFUN ("internal-set-font-selection-order",
4998 Finternal_set_font_selection_order
,
4999 Sinternal_set_font_selection_order
, 1, 1, 0,
5000 doc
: /* Set font selection order for face font selection to ORDER.
5001 ORDER must be a list of length 4 containing the symbols `:width',
5002 `:height', `:weight', and `:slant'. Face attributes appearing
5003 first in ORDER are matched first, e.g. if `:height' appears before
5004 `:weight' in ORDER, font selection first tries to find a font with
5005 a suitable height, and then tries to match the font weight.
5011 int indices
[ARRAYELTS (font_sort_order
)];
5014 memset (indices
, 0, sizeof indices
);
5018 CONSP (list
) && i
< ARRAYELTS (indices
);
5019 list
= XCDR (list
), ++i
)
5021 Lisp_Object attr
= XCAR (list
);
5024 if (EQ (attr
, QCwidth
))
5026 else if (EQ (attr
, QCheight
))
5027 xlfd
= XLFD_POINT_SIZE
;
5028 else if (EQ (attr
, QCweight
))
5030 else if (EQ (attr
, QCslant
))
5035 if (indices
[i
] != 0)
5040 if (!NILP (list
) || i
!= ARRAYELTS (indices
))
5041 signal_error ("Invalid font sort order", order
);
5042 for (i
= 0; i
< ARRAYELTS (font_sort_order
); ++i
)
5043 if (indices
[i
] == 0)
5044 signal_error ("Invalid font sort order", order
);
5046 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5048 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5049 free_all_realized_faces (Qnil
);
5052 font_update_sort_order (font_sort_order
);
5058 DEFUN ("internal-set-alternative-font-family-alist",
5059 Finternal_set_alternative_font_family_alist
,
5060 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5061 doc
: /* Define alternative font families to try in face font selection.
5062 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5063 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5064 be found. Value is ALIST. */)
5067 Lisp_Object entry
, tail
, tail2
;
5070 alist
= Fcopy_sequence (alist
);
5071 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5073 entry
= XCAR (tail
);
5075 entry
= Fcopy_sequence (entry
);
5076 XSETCAR (tail
, entry
);
5077 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5078 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5081 Vface_alternative_font_family_alist
= alist
;
5082 free_all_realized_faces (Qnil
);
5087 DEFUN ("internal-set-alternative-font-registry-alist",
5088 Finternal_set_alternative_font_registry_alist
,
5089 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5090 doc
: /* Define alternative font registries to try in face font selection.
5091 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5092 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5093 be found. Value is ALIST. */)
5096 Lisp_Object entry
, tail
, tail2
;
5099 alist
= Fcopy_sequence (alist
);
5100 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5102 entry
= XCAR (tail
);
5104 entry
= Fcopy_sequence (entry
);
5105 XSETCAR (tail
, entry
);
5106 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5107 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5109 Vface_alternative_font_registry_alist
= alist
;
5110 free_all_realized_faces (Qnil
);
5115 #ifdef HAVE_WINDOW_SYSTEM
5117 /* Return the fontset id of the base fontset name or alias name given
5118 by the fontset attribute of ATTRS. Value is -1 if the fontset
5119 attribute of ATTRS doesn't name a fontset. */
5122 face_fontset (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5126 name
= attrs
[LFACE_FONTSET_INDEX
];
5127 if (!STRINGP (name
))
5129 return fs_query_fontset (name
, 0);
5132 #endif /* HAVE_WINDOW_SYSTEM */
5136 /***********************************************************************
5138 ***********************************************************************/
5140 /* Realize basic faces on frame F. Value is zero if frame parameters
5141 of F don't contain enough information needed to realize the default
5145 realize_basic_faces (struct frame
*f
)
5148 ptrdiff_t count
= SPECPDL_INDEX ();
5150 /* Block input here so that we won't be surprised by an X expose
5151 event, for instance, without having the faces set up. */
5153 specbind (Qscalable_fonts_allowed
, Qt
);
5155 if (realize_default_face (f
))
5157 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5158 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5159 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5160 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5161 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5162 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5163 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5164 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5165 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5166 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5167 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5168 realize_named_face (f
, Qwindow_divider
, WINDOW_DIVIDER_FACE_ID
);
5169 realize_named_face (f
, Qwindow_divider_first_pixel
,
5170 WINDOW_DIVIDER_FIRST_PIXEL_FACE_ID
);
5171 realize_named_face (f
, Qwindow_divider_last_pixel
,
5172 WINDOW_DIVIDER_LAST_PIXEL_FACE_ID
);
5174 /* Reflect changes in the `menu' face in menu bars. */
5175 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5177 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5178 #ifdef USE_X_TOOLKIT
5179 if (FRAME_WINDOW_P (f
))
5180 x_update_menu_appearance (f
);
5187 unbind_to (count
, Qnil
);
5193 /* Realize the default face on frame F. If the face is not fully
5194 specified, make it fully-specified. Attributes of the default face
5195 that are not explicitly specified are taken from frame parameters. */
5198 realize_default_face (struct frame
*f
)
5200 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5202 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5205 /* If the `default' face is not yet known, create it. */
5206 lface
= lface_from_face_name (f
, Qdefault
, 0);
5210 XSETFRAME (frame
, f
);
5211 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5214 #ifdef HAVE_WINDOW_SYSTEM
5215 if (FRAME_WINDOW_P (f
))
5217 Lisp_Object font_object
;
5219 XSETFONT (font_object
, FRAME_FONT (f
));
5220 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5221 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5222 f
->default_face_done_p
= 1;
5224 #endif /* HAVE_WINDOW_SYSTEM */
5226 if (!FRAME_WINDOW_P (f
))
5228 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5229 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5230 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5231 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5232 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5233 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5234 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5235 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5236 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5237 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5240 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5241 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5243 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5244 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5246 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5247 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5249 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5250 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5252 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5253 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5255 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5257 /* This function is called so early that colors are not yet
5258 set in the frame parameter list. */
5259 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5261 if (CONSP (color
) && STRINGP (XCDR (color
)))
5262 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5263 else if (FRAME_WINDOW_P (f
))
5265 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5266 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5271 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5273 /* This function is called so early that colors are not yet
5274 set in the frame parameter list. */
5275 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5276 if (CONSP (color
) && STRINGP (XCDR (color
)))
5277 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5278 else if (FRAME_WINDOW_P (f
))
5280 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5281 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5286 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5287 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5289 /* Realize the face; it must be fully-specified now. */
5290 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5291 check_lface (lface
);
5292 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5293 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5295 #ifdef HAVE_WINDOW_SYSTEM
5296 #ifdef HAVE_X_WINDOWS
5297 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5299 /* This can happen when making a frame on a display that does
5300 not support the default font. */
5304 /* Otherwise, the font specified for the frame was not
5305 acceptable as a font for the default face (perhaps because
5306 auto-scaled fonts are rejected), so we must adjust the frame
5308 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5310 #endif /* HAVE_X_WINDOWS */
5311 #endif /* HAVE_WINDOW_SYSTEM */
5316 /* Realize basic faces other than the default face in face cache C.
5317 SYMBOL is the face name, ID is the face id the realized face must
5318 have. The default face must have been realized already. */
5321 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5323 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5324 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5325 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5326 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5328 /* The default face must exist and be fully specified. */
5329 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5330 check_lface_attrs (attrs
);
5331 eassert (lface_fully_specified_p (attrs
));
5333 /* If SYMBOL isn't know as a face, create it. */
5337 XSETFRAME (frame
, f
);
5338 lface
= Finternal_make_lisp_face (symbol
, frame
);
5341 /* Merge SYMBOL's face with the default face. */
5342 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5343 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5345 /* Realize the face. */
5346 realize_face (c
, attrs
, id
);
5350 /* Realize the fully-specified face with attributes ATTRS in face
5351 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5352 non-negative, it is an ID of face to remove before caching the new
5353 face. Value is a pointer to the newly created realized face. */
5355 static struct face
*
5356 realize_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
5361 /* LFACE must be fully specified. */
5362 eassert (cache
!= NULL
);
5363 check_lface_attrs (attrs
);
5365 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5367 /* Remove the former face. */
5368 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5369 uncache_face (cache
, former_face
);
5370 free_realized_face (cache
->f
, former_face
);
5371 SET_FRAME_GARBAGED (cache
->f
);
5374 if (FRAME_WINDOW_P (cache
->f
))
5375 face
= realize_x_face (cache
, attrs
);
5376 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5377 face
= realize_tty_face (cache
, attrs
);
5378 else if (FRAME_INITIAL_P (cache
->f
))
5380 /* Create a dummy face. */
5381 face
= make_realized_face (attrs
);
5386 /* Insert the new face. */
5387 cache_face (cache
, face
, lface_hash (attrs
));
5392 #ifdef HAVE_WINDOW_SYSTEM
5393 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5394 same attributes as BASE_FACE except for the font on frame F.
5395 FONT-OBJECT may be nil, in which case, realized a face of
5398 static struct face
*
5399 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5400 struct face
*base_face
)
5402 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5405 face
= xmalloc (sizeof *face
);
5409 = (! NILP (font_object
)
5410 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5411 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5413 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5414 face
->colors_copied_bitwise_p
= 1;
5415 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5418 cache_face (cache
, face
, face
->hash
);
5422 #endif /* HAVE_WINDOW_SYSTEM */
5425 /* Realize the fully-specified face with attributes ATTRS in face
5426 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5427 the new face doesn't share font with the default face, a fontname
5428 is allocated from the heap and set in `font_name' of the new face,
5429 but it is not yet loaded here. Value is a pointer to the newly
5430 created realized face. */
5432 static struct face
*
5433 realize_x_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5435 struct face
*face
= NULL
;
5436 #ifdef HAVE_WINDOW_SYSTEM
5437 struct face
*default_face
;
5439 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5441 eassert (FRAME_WINDOW_P (cache
->f
));
5443 /* Allocate a new realized face. */
5444 face
= make_realized_face (attrs
);
5445 face
->ascii_face
= face
;
5449 /* Determine the font to use. Most of the time, the font will be
5450 the same as the font of the default face, so try that first. */
5451 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5453 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5455 face
->font
= default_face
->font
;
5457 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5461 /* If the face attribute ATTRS specifies a fontset, use it as
5462 the base of a new realized fontset. Otherwise, use the same
5463 base fontset as of the default face. The base determines
5464 registry and encoding of a font. It may also determine
5465 foundry and family. The other fields of font name pattern
5466 are constructed from ATTRS. */
5467 int fontset
= face_fontset (attrs
);
5469 /* If we are realizing the default face, ATTRS should specify a
5470 fontset. In other words, if FONTSET is -1, we are not
5471 realizing the default face, thus the default face should have
5472 already been realized. */
5476 fontset
= default_face
->fontset
;
5480 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5481 attrs
[LFACE_FONT_INDEX
]
5482 = font_load_for_lface (f
, attrs
, Ffont_spec (0, NULL
));
5483 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5485 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5486 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5496 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5497 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5498 face
->overstrike
= 1;
5500 /* Load colors, and set remaining attributes. */
5502 load_face_colors (f
, face
, attrs
);
5505 box
= attrs
[LFACE_BOX_INDEX
];
5508 /* A simple box of line width 1 drawn in color given by
5510 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5512 face
->box
= FACE_SIMPLE_BOX
;
5513 face
->box_line_width
= 1;
5515 else if (INTEGERP (box
))
5517 /* Simple box of specified line width in foreground color of the
5519 eassert (XINT (box
) != 0);
5520 face
->box
= FACE_SIMPLE_BOX
;
5521 face
->box_line_width
= XINT (box
);
5522 face
->box_color
= face
->foreground
;
5523 face
->box_color_defaulted_p
= 1;
5525 else if (CONSP (box
))
5527 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5528 being one of `raised' or `sunken'. */
5529 face
->box
= FACE_SIMPLE_BOX
;
5530 face
->box_color
= face
->foreground
;
5531 face
->box_color_defaulted_p
= 1;
5532 face
->box_line_width
= 1;
5536 Lisp_Object keyword
, value
;
5538 keyword
= XCAR (box
);
5546 if (EQ (keyword
, QCline_width
))
5548 if (INTEGERP (value
) && XINT (value
) != 0)
5549 face
->box_line_width
= XINT (value
);
5551 else if (EQ (keyword
, QCcolor
))
5553 if (STRINGP (value
))
5555 face
->box_color
= load_color (f
, face
, value
,
5557 face
->use_box_color_for_shadows_p
= 1;
5560 else if (EQ (keyword
, QCstyle
))
5562 if (EQ (value
, Qreleased_button
))
5563 face
->box
= FACE_RAISED_BOX
;
5564 else if (EQ (value
, Qpressed_button
))
5565 face
->box
= FACE_SUNKEN_BOX
;
5570 /* Text underline, overline, strike-through. */
5572 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5573 if (EQ (underline
, Qt
))
5575 /* Use default color (same as foreground color). */
5576 face
->underline_p
= 1;
5577 face
->underline_type
= FACE_UNDER_LINE
;
5578 face
->underline_defaulted_p
= 1;
5579 face
->underline_color
= 0;
5581 else if (STRINGP (underline
))
5583 /* Use specified color. */
5584 face
->underline_p
= 1;
5585 face
->underline_type
= FACE_UNDER_LINE
;
5586 face
->underline_defaulted_p
= 0;
5587 face
->underline_color
5588 = load_color (f
, face
, underline
,
5589 LFACE_UNDERLINE_INDEX
);
5591 else if (NILP (underline
))
5593 face
->underline_p
= 0;
5594 face
->underline_defaulted_p
= 0;
5595 face
->underline_color
= 0;
5597 else if (CONSP (underline
))
5599 /* `(:color COLOR :style STYLE)'.
5600 STYLE being one of `line' or `wave'. */
5601 face
->underline_p
= 1;
5602 face
->underline_color
= 0;
5603 face
->underline_defaulted_p
= 1;
5604 face
->underline_type
= FACE_UNDER_LINE
;
5606 /* FIXME? This is also not robust about checking the precise form.
5607 See comments in Finternal_set_lisp_face_attribute. */
5608 while (CONSP (underline
))
5610 Lisp_Object keyword
, value
;
5612 keyword
= XCAR (underline
);
5613 underline
= XCDR (underline
);
5615 if (!CONSP (underline
))
5617 value
= XCAR (underline
);
5618 underline
= XCDR (underline
);
5620 if (EQ (keyword
, QCcolor
))
5622 if (EQ (value
, Qforeground_color
))
5624 face
->underline_defaulted_p
= 1;
5625 face
->underline_color
= 0;
5627 else if (STRINGP (value
))
5629 face
->underline_defaulted_p
= 0;
5630 face
->underline_color
= load_color (f
, face
, value
,
5631 LFACE_UNDERLINE_INDEX
);
5634 else if (EQ (keyword
, QCstyle
))
5636 if (EQ (value
, Qline
))
5637 face
->underline_type
= FACE_UNDER_LINE
;
5638 else if (EQ (value
, Qwave
))
5639 face
->underline_type
= FACE_UNDER_WAVE
;
5644 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5645 if (STRINGP (overline
))
5647 face
->overline_color
5648 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5649 LFACE_OVERLINE_INDEX
);
5650 face
->overline_p
= 1;
5652 else if (EQ (overline
, Qt
))
5654 face
->overline_color
= face
->foreground
;
5655 face
->overline_color_defaulted_p
= 1;
5656 face
->overline_p
= 1;
5659 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5660 if (STRINGP (strike_through
))
5662 face
->strike_through_color
5663 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5664 LFACE_STRIKE_THROUGH_INDEX
);
5665 face
->strike_through_p
= 1;
5667 else if (EQ (strike_through
, Qt
))
5669 face
->strike_through_color
= face
->foreground
;
5670 face
->strike_through_color_defaulted_p
= 1;
5671 face
->strike_through_p
= 1;
5674 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5675 if (!NILP (stipple
))
5676 face
->stipple
= load_pixmap (f
, stipple
);
5677 #endif /* HAVE_WINDOW_SYSTEM */
5683 /* Map a specified color of face FACE on frame F to a tty color index.
5684 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5685 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5686 default foreground/background colors. */
5689 map_tty_color (struct frame
*f
, struct face
*face
,
5690 enum lface_attribute_index idx
, int *defaulted
)
5692 Lisp_Object frame
, color
, def
;
5693 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5694 unsigned long default_pixel
=
5695 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5696 unsigned long pixel
= default_pixel
;
5698 unsigned long default_other_pixel
=
5699 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5702 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5704 XSETFRAME (frame
, f
);
5705 color
= face
->lface
[idx
];
5709 && CONSP (Vtty_defined_color_alist
)
5710 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5713 /* Associations in tty-defined-color-alist are of the form
5714 (NAME INDEX R G B). We need the INDEX part. */
5715 pixel
= XINT (XCAR (XCDR (def
)));
5718 if (pixel
== default_pixel
&& STRINGP (color
))
5720 pixel
= load_color (f
, face
, color
, idx
);
5723 /* If the foreground of the default face is the default color,
5724 use the foreground color defined by the frame. */
5725 if (FRAME_MSDOS_P (f
))
5727 if (pixel
== default_pixel
5728 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5731 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5733 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5734 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5737 else if (pixel
== default_other_pixel
)
5740 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5742 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5743 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5751 face
->foreground
= pixel
;
5753 face
->background
= pixel
;
5757 /* Realize the fully-specified face with attributes ATTRS in face
5758 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5759 Value is a pointer to the newly created realized face. */
5761 static struct face
*
5762 realize_tty_face (struct face_cache
*cache
,
5763 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5767 int face_colors_defaulted
= 0;
5768 struct frame
*f
= cache
->f
;
5770 /* Frame must be a termcap frame. */
5771 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5773 /* Allocate a new realized face. */
5774 face
= make_realized_face (attrs
);
5776 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5779 /* Map face attributes to TTY appearances. */
5780 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5781 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5783 face
->tty_bold_p
= 1;
5785 face
->tty_italic_p
= 1;
5786 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5787 face
->tty_underline_p
= 1;
5788 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5789 face
->tty_reverse_p
= 1;
5791 /* Map color names to color indices. */
5792 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5793 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5795 /* Swap colors if face is inverse-video. If the colors are taken
5796 from the frame colors, they are already inverted, since the
5797 frame-creation function calls x-handle-reverse-video. */
5798 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5800 unsigned long tem
= face
->foreground
;
5801 face
->foreground
= face
->background
;
5802 face
->background
= tem
;
5805 if (tty_suppress_bold_inverse_default_colors_p
5807 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5808 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5809 face
->tty_bold_p
= 0;
5815 DEFUN ("tty-suppress-bold-inverse-default-colors",
5816 Ftty_suppress_bold_inverse_default_colors
,
5817 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5818 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5819 SUPPRESS non-nil means suppress it.
5820 This affects bold faces on TTYs whose foreground is the default background
5821 color of the display and whose background is the default foreground color.
5822 For such faces, the bold face attribute is ignored if this variable
5824 (Lisp_Object suppress
)
5826 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5827 ++face_change_count
;
5833 /***********************************************************************
5835 ***********************************************************************/
5837 /* Return the ID of the face to use to display character CH with face
5838 property PROP on frame F in current_buffer. */
5841 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5845 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5850 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5851 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5855 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5856 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5857 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5858 merge_face_ref (f
, prop
, attrs
, 1, 0);
5859 face_id
= lookup_face (f
, attrs
);
5865 /* Return the face ID associated with buffer position POS for
5866 displaying ASCII characters. Return in *ENDPTR the position at
5867 which a different face is needed, as far as text properties and
5868 overlays are concerned. W is a window displaying current_buffer.
5870 REGION_BEG, REGION_END delimit the region, so it can be
5873 LIMIT is a position not to scan beyond. That is to limit the time
5874 this function can take.
5876 If MOUSE is non-zero, use the character's mouse-face, not its face.
5878 BASE_FACE_ID, if non-negative, specifies a base face id to use
5879 instead of DEFAULT_FACE_ID.
5881 The face returned is suitable for displaying ASCII characters. */
5884 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
5885 ptrdiff_t *endptr
, ptrdiff_t limit
,
5886 int mouse
, int base_face_id
)
5888 struct frame
*f
= XFRAME (w
->frame
);
5889 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5890 Lisp_Object prop
, position
;
5891 ptrdiff_t i
, noverlays
;
5892 Lisp_Object
*overlay_vec
;
5894 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5895 Lisp_Object limit1
, end
;
5896 struct face
*default_face
;
5898 /* W must display the current buffer. We could write this function
5899 to use the frame and buffer of W, but right now it doesn't. */
5900 /* eassert (XBUFFER (w->contents) == current_buffer); */
5902 XSETFASTINT (position
, pos
);
5906 /* Get the `face' or `mouse_face' text property at POS, and
5907 determine the next position at which the property changes. */
5908 prop
= Fget_text_property (position
, propname
, w
->contents
);
5909 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5910 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
5912 endpos
= XINT (end
);
5914 /* Look at properties from overlays. */
5917 ptrdiff_t next_overlay
;
5919 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5920 if (next_overlay
< endpos
)
5921 endpos
= next_overlay
;
5929 if (base_face_id
>= 0)
5930 face_id
= base_face_id
;
5931 else if (NILP (Vface_remapping_alist
))
5932 face_id
= DEFAULT_FACE_ID
;
5934 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
5936 default_face
= FACE_FROM_ID (f
, face_id
);
5939 /* Optimize common cases where we can use the default face. */
5944 return default_face
->id
;
5947 /* Begin with attributes from the default face. */
5948 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5950 /* Merge in attributes specified via text properties. */
5952 merge_face_ref (f
, prop
, attrs
, 1, 0);
5954 /* Now merge the overlay data. */
5955 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
5956 for (i
= 0; i
< noverlays
; i
++)
5961 prop
= Foverlay_get (overlay_vec
[i
], propname
);
5963 merge_face_ref (f
, prop
, attrs
, 1, 0);
5965 oend
= OVERLAY_END (overlay_vec
[i
]);
5966 oendpos
= OVERLAY_POSITION (oend
);
5967 if (oendpos
< endpos
)
5975 /* Look up a realized face with the given face attributes,
5976 or realize a new one for ASCII characters. */
5977 return lookup_face (f
, attrs
);
5980 /* Return the face ID at buffer position POS for displaying ASCII
5981 characters associated with overlay strings for overlay OVERLAY.
5983 Like face_at_buffer_position except for OVERLAY. Currently it
5984 simply disregards the `face' properties of all overlays. */
5987 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
5988 ptrdiff_t *endptr
, ptrdiff_t limit
,
5989 int mouse
, Lisp_Object overlay
)
5991 struct frame
*f
= XFRAME (w
->frame
);
5992 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5993 Lisp_Object prop
, position
;
5995 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5996 Lisp_Object limit1
, end
;
5997 struct face
*default_face
;
5999 /* W must display the current buffer. We could write this function
6000 to use the frame and buffer of W, but right now it doesn't. */
6001 /* eassert (XBUFFER (w->contents) == current_buffer); */
6003 XSETFASTINT (position
, pos
);
6007 /* Get the `face' or `mouse_face' text property at POS, and
6008 determine the next position at which the property changes. */
6009 prop
= Fget_text_property (position
, propname
, w
->contents
);
6010 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6011 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
6013 endpos
= XINT (end
);
6017 /* Optimize common case where we can use the default face. */
6019 && NILP (Vface_remapping_alist
))
6020 return DEFAULT_FACE_ID
;
6022 /* Begin with attributes from the default face. */
6023 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6024 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6026 /* Merge in attributes specified via text properties. */
6028 merge_face_ref (f
, prop
, attrs
, 1, 0);
6032 /* Look up a realized face with the given face attributes,
6033 or realize a new one for ASCII characters. */
6034 return lookup_face (f
, attrs
);
6038 /* Compute the face at character position POS in Lisp string STRING on
6039 window W, for ASCII characters.
6041 If STRING is an overlay string, it comes from position BUFPOS in
6042 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6043 not an overlay string. W must display the current buffer.
6044 REGION_BEG and REGION_END give the start and end positions of the
6045 region; both are -1 if no region is visible.
6047 BASE_FACE_ID is the id of a face to merge with. For strings coming
6048 from overlays or the `display' property it is the face at BUFPOS.
6050 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6052 Set *ENDPTR to the next position where to check for faces in
6053 STRING; -1 if the face is constant from POS to the end of the
6056 Value is the id of the face to use. The face returned is suitable
6057 for displaying ASCII characters. */
6060 face_at_string_position (struct window
*w
, Lisp_Object string
,
6061 ptrdiff_t pos
, ptrdiff_t bufpos
,
6062 ptrdiff_t *endptr
, enum face_id base_face_id
,
6065 Lisp_Object prop
, position
, end
, limit
;
6066 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6067 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6068 struct face
*base_face
;
6069 bool multibyte_p
= STRING_MULTIBYTE (string
);
6070 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6072 /* Get the value of the face property at the current position within
6073 STRING. Value is nil if there is no face property. */
6074 XSETFASTINT (position
, pos
);
6075 prop
= Fget_text_property (position
, prop_name
, string
);
6077 /* Get the next position at which to check for faces. Value of end
6078 is nil if face is constant all the way to the end of the string.
6079 Otherwise it is a string position where to check faces next.
6080 Limit is the maximum position up to which to check for property
6081 changes in Fnext_single_property_change. Strings are usually
6082 short, so set the limit to the end of the string. */
6083 XSETFASTINT (limit
, SCHARS (string
));
6084 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6086 *endptr
= XFASTINT (end
);
6090 base_face
= FACE_FROM_ID (f
, base_face_id
);
6091 eassert (base_face
);
6093 /* Optimize the default case that there is no face property. */
6096 /* We can't realize faces for different charsets differently
6097 if we don't have fonts, so we can stop here if not working
6098 on a window-system frame. */
6099 || !FRAME_WINDOW_P (f
)
6100 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6101 return base_face
->id
;
6103 /* Begin with attributes from the base face. */
6104 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6106 /* Merge in attributes specified via text properties. */
6108 merge_face_ref (f
, prop
, attrs
, 1, 0);
6110 /* Look up a realized face with the given face attributes,
6111 or realize a new one for ASCII characters. */
6112 return lookup_face (f
, attrs
);
6116 /* Merge a face into a realized face.
6118 F is frame where faces are (to be) realized.
6120 FACE_NAME is named face to merge.
6122 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6124 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6126 BASE_FACE_ID is realized face to merge into.
6132 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6135 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6136 struct face
*base_face
;
6138 base_face
= FACE_FROM_ID (f
, base_face_id
);
6140 return base_face_id
;
6142 if (EQ (face_name
, Qt
))
6144 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6145 return base_face_id
;
6146 face_name
= lface_id_to_name
[face_id
];
6147 /* When called during make-frame, lookup_derived_face may fail
6148 if the faces are uninitialized. Don't signal an error. */
6149 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6150 return (face_id
>= 0 ? face_id
: base_face_id
);
6153 /* Begin with attributes from the base face. */
6154 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6156 if (!NILP (face_name
))
6158 if (!merge_named_face (f
, face_name
, attrs
, 0))
6159 return base_face_id
;
6165 return base_face_id
;
6166 face
= FACE_FROM_ID (f
, face_id
);
6168 return base_face_id
;
6169 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6172 /* Look up a realized face with the given face attributes,
6173 or realize a new one for ASCII characters. */
6174 return lookup_face (f
, attrs
);
6179 #ifndef HAVE_X_WINDOWS
6180 DEFUN ("x-load-color-file", Fx_load_color_file
,
6181 Sx_load_color_file
, 1, 1, 0,
6182 doc
: /* Create an alist of color entries from an external file.
6184 The file should define one named RGB color per line like so:
6186 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6187 (Lisp_Object filename
)
6190 Lisp_Object cmap
= Qnil
;
6191 Lisp_Object abspath
;
6193 CHECK_STRING (filename
);
6194 abspath
= Fexpand_file_name (filename
, Qnil
);
6197 fp
= emacs_fopen (SSDATA (abspath
), "rt");
6201 int red
, green
, blue
;
6204 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6205 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6208 int color
= RGB (red
, green
, blue
);
6210 int color
= (red
<< 16) | (green
<< 8) | blue
;
6212 char *name
= buf
+ num
;
6213 ptrdiff_t len
= strlen (name
);
6214 len
-= 0 < len
&& name
[len
- 1] == '\n';
6215 cmap
= Fcons (Fcons (make_string (name
, len
), make_number (color
)),
6227 /***********************************************************************
6229 ***********************************************************************/
6233 /* Print the contents of the realized face FACE to stderr. */
6236 dump_realized_face (struct face
*face
)
6238 fprintf (stderr
, "ID: %d\n", face
->id
);
6239 #ifdef HAVE_X_WINDOWS
6240 fprintf (stderr
, "gc: %p\n", face
->gc
);
6242 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6244 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6245 fprintf (stderr
, "background: 0x%lx (%s)\n",
6247 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6249 fprintf (stderr
, "font_name: %s (%s)\n",
6250 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6251 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6252 #ifdef HAVE_X_WINDOWS
6253 fprintf (stderr
, "font = %p\n", face
->font
);
6255 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6256 fprintf (stderr
, "underline: %d (%s)\n",
6258 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6259 fprintf (stderr
, "hash: %d\n", face
->hash
);
6263 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6270 fprintf (stderr
, "font selection order: ");
6271 for (i
= 0; i
< ARRAYELTS (font_sort_order
); ++i
)
6272 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6273 fprintf (stderr
, "\n");
6275 fprintf (stderr
, "alternative fonts: ");
6276 debug_print (Vface_alternative_font_family_alist
);
6277 fprintf (stderr
, "\n");
6279 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6280 Fdump_face (make_number (i
));
6286 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6288 error ("Not a valid face");
6289 dump_realized_face (face
);
6296 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6297 0, 0, 0, doc
: /* */)
6300 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6301 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6302 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6306 #endif /* GLYPH_DEBUG */
6310 /***********************************************************************
6312 ***********************************************************************/
6315 syms_of_xfaces (void)
6317 /* The symbols `face' and `mouse-face' used as text properties. */
6318 DEFSYM (Qface
, "face");
6320 /* Property for basic faces which other faces cannot inherit. */
6321 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6323 /* Error symbol for wrong_type_argument in load_pixmap. */
6324 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6326 /* The name of the function to call when the background of the frame
6327 has changed, frame_set_background_mode. */
6328 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6330 /* Lisp face attribute keywords. */
6331 DEFSYM (QCfamily
, ":family");
6332 DEFSYM (QCheight
, ":height");
6333 DEFSYM (QCweight
, ":weight");
6334 DEFSYM (QCslant
, ":slant");
6335 DEFSYM (QCunderline
, ":underline");
6336 DEFSYM (QCinverse_video
, ":inverse-video");
6337 DEFSYM (QCreverse_video
, ":reverse-video");
6338 DEFSYM (QCforeground
, ":foreground");
6339 DEFSYM (QCbackground
, ":background");
6340 DEFSYM (QCstipple
, ":stipple");
6341 DEFSYM (QCwidth
, ":width");
6342 DEFSYM (QCfont
, ":font");
6343 DEFSYM (QCfontset
, ":fontset");
6344 DEFSYM (QCdistant_foreground
, ":distant-foreground");
6345 DEFSYM (QCbold
, ":bold");
6346 DEFSYM (QCitalic
, ":italic");
6347 DEFSYM (QCoverline
, ":overline");
6348 DEFSYM (QCstrike_through
, ":strike-through");
6349 DEFSYM (QCbox
, ":box");
6350 DEFSYM (QCinherit
, ":inherit");
6352 /* Symbols used for Lisp face attribute values. */
6353 DEFSYM (QCcolor
, ":color");
6354 DEFSYM (QCline_width
, ":line-width");
6355 DEFSYM (QCstyle
, ":style");
6356 DEFSYM (Qline
, "line");
6357 DEFSYM (Qwave
, "wave");
6358 DEFSYM (Qreleased_button
, "released-button");
6359 DEFSYM (Qpressed_button
, "pressed-button");
6360 DEFSYM (Qnormal
, "normal");
6361 DEFSYM (Qextra_light
, "extra-light");
6362 DEFSYM (Qlight
, "light");
6363 DEFSYM (Qsemi_light
, "semi-light");
6364 DEFSYM (Qsemi_bold
, "semi-bold");
6365 DEFSYM (Qbold
, "bold");
6366 DEFSYM (Qextra_bold
, "extra-bold");
6367 DEFSYM (Qultra_bold
, "ultra-bold");
6368 DEFSYM (Qoblique
, "oblique");
6369 DEFSYM (Qitalic
, "italic");
6371 /* The symbols `foreground-color' and `background-color' which can be
6372 used as part of a `face' property. This is for compatibility with
6374 DEFSYM (Qbackground_color
, "background-color");
6375 DEFSYM (Qforeground_color
, "foreground-color");
6377 DEFSYM (Qunspecified
, "unspecified");
6378 DEFSYM (QCignore_defface
, ":ignore-defface");
6380 /* The symbol `face-alias'. A symbol having that property is an
6381 alias for another face. Value of the property is the name of
6382 the aliased face. */
6383 DEFSYM (Qface_alias
, "face-alias");
6385 /* Names of basic faces. */
6386 DEFSYM (Qdefault
, "default");
6387 DEFSYM (Qtool_bar
, "tool-bar");
6388 DEFSYM (Qregion
, "region");
6389 DEFSYM (Qfringe
, "fringe");
6390 DEFSYM (Qheader_line
, "header-line");
6391 DEFSYM (Qscroll_bar
, "scroll-bar");
6392 DEFSYM (Qmenu
, "menu");
6393 DEFSYM (Qcursor
, "cursor");
6394 DEFSYM (Qborder
, "border");
6395 DEFSYM (Qmouse
, "mouse");
6396 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6397 DEFSYM (Qvertical_border
, "vertical-border");
6399 /* TTY color-related functions (defined in tty-colors.el). */
6400 DEFSYM (Qwindow_divider
, "window-divider");
6401 DEFSYM (Qwindow_divider_first_pixel
, "window-divider-first-pixel");
6402 DEFSYM (Qwindow_divider_last_pixel
, "window-divider-last-pixel");
6403 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6404 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6405 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6407 /* The name of the function used to compute colors on TTYs. */
6408 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6410 /* Allowed scalable fonts. A value of nil means don't allow any
6411 scalable fonts. A value of t means allow the use of any scalable
6412 font. Otherwise, value must be a list of regular expressions. A
6413 font may be scaled if its name matches a regular expression in the
6415 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6417 Vparam_value_alist
= list1 (Fcons (Qnil
, Qnil
));
6418 staticpro (&Vparam_value_alist
);
6419 Vface_alternative_font_family_alist
= Qnil
;
6420 staticpro (&Vface_alternative_font_family_alist
);
6421 Vface_alternative_font_registry_alist
= Qnil
;
6422 staticpro (&Vface_alternative_font_registry_alist
);
6424 defsubr (&Sinternal_make_lisp_face
);
6425 defsubr (&Sinternal_lisp_face_p
);
6426 defsubr (&Sinternal_set_lisp_face_attribute
);
6427 #ifdef HAVE_WINDOW_SYSTEM
6428 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6430 defsubr (&Scolor_gray_p
);
6431 defsubr (&Scolor_supported_p
);
6432 #ifndef HAVE_X_WINDOWS
6433 defsubr (&Sx_load_color_file
);
6435 defsubr (&Sface_attribute_relative_p
);
6436 defsubr (&Smerge_face_attribute
);
6437 defsubr (&Sinternal_get_lisp_face_attribute
);
6438 defsubr (&Sinternal_lisp_face_attribute_values
);
6439 defsubr (&Sinternal_lisp_face_equal_p
);
6440 defsubr (&Sinternal_lisp_face_empty_p
);
6441 defsubr (&Sinternal_copy_lisp_face
);
6442 defsubr (&Sinternal_merge_in_global_face
);
6443 defsubr (&Sface_font
);
6444 defsubr (&Sframe_face_alist
);
6445 defsubr (&Sdisplay_supports_face_attributes_p
);
6446 defsubr (&Scolor_distance
);
6447 defsubr (&Sinternal_set_font_selection_order
);
6448 defsubr (&Sinternal_set_alternative_font_family_alist
);
6449 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6450 defsubr (&Sface_attributes_as_vector
);
6452 defsubr (&Sdump_face
);
6453 defsubr (&Sshow_face_resources
);
6454 #endif /* GLYPH_DEBUG */
6455 defsubr (&Sclear_face_cache
);
6456 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6458 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6459 defsubr (&Sdump_colors
);
6462 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6463 doc
: /* List of global face definitions (for internal use only.) */);
6464 Vface_new_frame_defaults
= Qnil
;
6466 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6467 doc
: /* Default stipple pattern used on monochrome displays.
6468 This stipple pattern is used on monochrome displays
6469 instead of shades of gray for a face background color.
6470 See `set-face-stipple' for possible values for this variable. */);
6471 Vface_default_stipple
= build_pure_c_string ("gray3");
6473 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6474 doc
: /* An alist of defined terminal colors and their RGB values.
6475 See the docstring of `tty-color-alist' for the details. */);
6476 Vtty_defined_color_alist
= Qnil
;
6478 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6479 doc
: /* Allowed scalable fonts.
6480 A value of nil means don't allow any scalable fonts.
6481 A value of t means allow any scalable font.
6482 Otherwise, value must be a list of regular expressions. A font may be
6483 scaled if its name matches a regular expression in the list.
6484 Note that if value is nil, a scalable font might still be used, if no
6485 other font of the appropriate family and registry is available. */);
6486 Vscalable_fonts_allowed
= Qnil
;
6488 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6489 doc
: /* List of ignored fonts.
6490 Each element is a regular expression that matches names of fonts to
6492 Vface_ignored_fonts
= Qnil
;
6494 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6495 doc
: /* Alist of face remappings.
6496 Each element is of the form:
6498 (FACE . REPLACEMENT),
6500 which causes display of the face FACE to use REPLACEMENT instead.
6501 REPLACEMENT is a face specification, i.e. one of the following:
6504 (2) a property list of attribute/value pairs, or
6505 (3) a list in which each element has the form of (1) or (2).
6507 List values for REPLACEMENT are merged to form the final face
6508 specification, with earlier entries taking precedence, in the same as
6509 as in the `face' text property.
6511 Face-name remapping cycles are suppressed; recursive references use
6512 the underlying face instead of the remapped face. So a remapping of
6515 (FACE EXTRA-FACE... FACE)
6519 (FACE (FACE-ATTR VAL ...) FACE)
6521 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6522 existing definition of FACE. Note that this isn't necessary for the
6523 default face, since every face inherits from the default face.
6525 If this variable is made buffer-local, the face remapping takes effect
6526 only in that buffer. For instance, the mode my-mode could define a
6527 face `my-mode-default', and then in the mode setup function, do:
6529 (set (make-local-variable 'face-remapping-alist)
6530 '((default my-mode-default)))).
6532 Because Emacs normally only redraws screen areas when the underlying
6533 buffer contents change, you may need to call `redraw-display' after
6534 changing this variable for it to take effect. */);
6535 Vface_remapping_alist
= Qnil
;
6537 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6538 doc
: /* Alist of fonts vs the rescaling factors.
6539 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6540 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6541 RESCALE-RATIO is a floating point number to specify how much larger
6542 \(or smaller) font we should use. For instance, if a face requests
6543 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6544 Vface_font_rescale_alist
= Qnil
;
6546 #ifdef HAVE_WINDOW_SYSTEM
6547 defsubr (&Sbitmap_spec_p
);
6548 defsubr (&Sx_list_fonts
);
6549 defsubr (&Sinternal_face_x_get_resource
);
6550 defsubr (&Sx_family_fonts
);