1 /* xfaces.c -- "Face" primitives.
3 Copyright (C) 1993-1994, 1998-2013 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
24 When using Emacs with X, the display style of characters can be
25 changed by defining `faces'. Each face can specify the following
32 3. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 4. Font height in 1/10pt.
37 5. Font weight, e.g. `bold'.
39 6. Font slant, e.g. `italic'.
45 9. Whether or not characters should be underlined, and in what color.
47 10. Whether or not characters should be displayed in inverse video.
49 11. A background stipple, a bitmap.
51 12. Whether or not characters should be overlined, and in what color.
53 13. Whether or not characters should be strike-through, and in what
56 14. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 15. Font-spec, or nil. This is a special attribute.
61 A font-spec is a collection of font attributes (specs).
63 When this attribute is specified, the face uses a font matching
64 with the specs as is except for what overwritten by the specs in
65 the fontset (see below). In addition, the other font-related
66 attributes (1st thru 5th) are updated from the spec.
68 On the other hand, if one of the other font-related attributes are
69 specified, the corresponding specs in this attribute is set to nil.
71 15. A face name or list of face names from which to inherit attributes.
73 16. A specified average font width, which is invisible from Lisp,
74 and is used to ensure that a font specified on the command line,
75 for example, can be matched exactly.
77 17. A fontset name. This is another special attribute.
79 A fontset is a mappings from characters to font-specs, and the
80 specs overwrite the font-spec in the 14th attribute.
83 Faces are frame-local by nature because Emacs allows to define the
84 same named face (face names are symbols) differently for different
85 frames. Each frame has an alist of face definitions for all named
86 faces. The value of a named face in such an alist is a Lisp vector
87 with the symbol `face' in slot 0, and a slot for each of the face
88 attributes mentioned above.
90 There is also a global face alist `Vface_new_frame_defaults'. Face
91 definitions from this list are used to initialize faces of newly
94 A face doesn't have to specify all attributes. Those not specified
95 have a value of `unspecified'. Faces specifying all attributes but
96 the 14th are called `fully-specified'.
101 The display style of a given character in the text is determined by
102 combining several faces. This process is called `face merging'.
103 Any aspect of the display style that isn't specified by overlays or
104 text properties is taken from the `default' face. Since it is made
105 sure that the default face is always fully-specified, face merging
106 always results in a fully-specified face.
111 After all face attributes for a character have been determined by
112 merging faces of that character, that face is `realized'. The
113 realization process maps face attributes to what is physically
114 available on the system where Emacs runs. The result is a
115 `realized face' in the form of a struct face which is stored in the
116 face cache of the frame on which it was realized.
118 Face realization is done in the context of the character to display
119 because different fonts may be used for different characters. In
120 other words, for characters that have different font
121 specifications, different realized faces are needed to display
124 Font specification is done by fontsets. See the comment in
125 fontset.c for the details. In the current implementation, all ASCII
126 characters share the same font in a fontset.
128 Faces are at first realized for ASCII characters, and, at that
129 time, assigned a specific realized fontset. Hereafter, we call
130 such a face as `ASCII face'. When a face for a multibyte character
131 is realized, it inherits (thus shares) a fontset of an ASCII face
132 that has the same attributes other than font-related ones.
134 Thus, all realized faces have a realized fontset.
139 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
140 font as ASCII characters. That is because it is expected that
141 unibyte text users specify a font that is suitable both for ASCII
142 and raw 8-bit characters.
147 Font selection tries to find the best available matching font for a
148 given (character, face) combination.
150 If the face specifies a fontset name, that fontset determines a
151 pattern for fonts of the given character. If the face specifies a
152 font name or the other font-related attributes, a fontset is
153 realized from the default fontset. In that case, that
154 specification determines a pattern for ASCII characters and the
155 default fontset determines a pattern for multibyte characters.
157 Available fonts on the system on which Emacs runs are then matched
158 against the font pattern. The result of font selection is the best
159 match for the given face attributes in this font list.
161 Font selection can be influenced by the user.
163 1. The user can specify the relative importance he gives the face
164 attributes width, height, weight, and slant by setting
165 face-font-selection-order (faces.el) to a list of face attribute
166 names. The default is '(:width :height :weight :slant), and means
167 that font selection first tries to find a good match for the font
168 width specified by a face, then---within fonts with that
169 width---tries to find a best match for the specified font height,
172 2. Setting face-font-family-alternatives allows the user to
173 specify alternative font families to try if a family specified by a
176 3. Setting face-font-registry-alternatives allows the user to
177 specify all alternative font registries to try for a face
178 specifying a registry.
180 4. Setting face-ignored-fonts allows the user to ignore specific
184 Character composition.
186 Usually, the realization process is already finished when Emacs
187 actually reflects the desired glyph matrix on the screen. However,
188 on displaying a composition (sequence of characters to be composed
189 on the screen), a suitable font for the components of the
190 composition is selected and realized while drawing them on the
191 screen, i.e. the realization process is delayed but in principle
195 Initialization of basic faces.
197 The faces `default', `modeline' are considered `basic faces'.
198 When redisplay happens the first time for a newly created frame,
199 basic faces are realized for CHARSET_ASCII. Frame parameters are
200 used to fill in unspecified attributes of the default face. */
203 #include "sysstdio.h"
204 #include <sys/types.h>
205 #include <sys/stat.h>
208 #include "character.h"
210 #include "keyboard.h"
212 #include "termhooks.h"
214 #ifdef HAVE_X_WINDOWS
218 #include <Xm/XmStrDefs.h>
219 #endif /* USE_MOTIF */
220 #endif /* HAVE_X_WINDOWS */
226 #ifdef HAVE_WINDOW_SYSTEM
230 #undef FRAME_X_DISPLAY_INFO
231 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
232 #define x_display_info w32_display_info
233 #define GCGraphicsExposures 0
234 #endif /* HAVE_NTGUI */
237 #undef FRAME_X_DISPLAY_INFO
238 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
239 #define GCGraphicsExposures 0
242 /* Number of pt per inch (from the TeXbook). */
244 #define PT_PER_INCH 72.27
246 #endif /* HAVE_WINDOW_SYSTEM */
249 #include "dispextern.h"
250 #include "blockinput.h"
252 #include "intervals.h"
253 #include "termchar.h"
257 #ifdef HAVE_X_WINDOWS
259 /* Compensate for a bug in Xos.h on some systems, on which it requires
260 time.h. On some such systems, Xos.h tries to redefine struct
261 timeval and struct timezone if USG is #defined while it is
264 #ifdef XOS_NEEDS_TIME_H
270 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
272 #else /* not XOS_NEEDS_TIME_H */
274 #endif /* not XOS_NEEDS_TIME_H */
276 #endif /* HAVE_X_WINDOWS */
280 /* Non-zero if face attribute ATTR is unspecified. */
282 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
284 /* Non-zero if face attribute ATTR is `ignore-defface'. */
286 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), QCignore_defface)
288 /* Value is the number of elements of VECTOR. */
290 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
292 /* Size of hash table of realized faces in face caches (should be a
295 #define FACE_CACHE_BUCKETS_SIZE 1001
297 /* Keyword symbols used for face attribute names. */
299 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
;
300 static Lisp_Object QCunderline
;
301 static Lisp_Object QCinverse_video
, QCstipple
;
302 Lisp_Object QCforeground
, QCbackground
;
304 static Lisp_Object QCfont
, QCbold
, QCitalic
;
305 static Lisp_Object QCreverse_video
;
306 static Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
307 static Lisp_Object QCfontset
;
309 /* Symbols used for attribute values. */
313 static Lisp_Object Qline
, Qwave
;
314 Lisp_Object Qextra_light
, Qlight
;
315 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
316 Lisp_Object Qoblique
;
318 static Lisp_Object Qreleased_button
, Qpressed_button
;
319 static Lisp_Object QCstyle
, QCcolor
, QCline_width
;
320 Lisp_Object Qunspecified
; /* used in dosfns.c */
321 static Lisp_Object QCignore_defface
;
323 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
325 /* The name of the function to call when the background of the frame
326 has changed, frame_set_background_mode. */
328 static Lisp_Object Qframe_set_background_mode
;
330 /* Names of basic faces. */
332 Lisp_Object Qdefault
, Qtool_bar
, Qfringe
;
333 static Lisp_Object Qregion
;
334 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
;
335 static Lisp_Object Qborder
, Qmouse
, Qmenu
;
336 Lisp_Object Qmode_line_inactive
;
337 static Lisp_Object Qvertical_border
;
339 /* The symbol `face-alias'. A symbols having that property is an
340 alias for another face. Value of the property is the name of
343 static Lisp_Object Qface_alias
;
345 /* Alist of alternative font families. Each element is of the form
346 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
347 try FAMILY1, then FAMILY2, ... */
349 Lisp_Object Vface_alternative_font_family_alist
;
351 /* Alist of alternative font registries. Each element is of the form
352 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
353 loaded, try REGISTRY1, then REGISTRY2, ... */
355 Lisp_Object Vface_alternative_font_registry_alist
;
357 /* Allowed scalable fonts. A value of nil means don't allow any
358 scalable fonts. A value of t means allow the use of any scalable
359 font. Otherwise, value must be a list of regular expressions. A
360 font may be scaled if its name matches a regular expression in the
363 static Lisp_Object Qscalable_fonts_allowed
;
365 /* The symbols `foreground-color' and `background-color' which can be
366 used as part of a `face' property. This is for compatibility with
369 Lisp_Object Qforeground_color
, Qbackground_color
;
371 /* The symbols `face' and `mouse-face' used as text properties. */
375 /* Property for basic faces which other faces cannot inherit. */
377 static Lisp_Object Qface_no_inherit
;
379 /* Error symbol for wrong_type_argument in load_pixmap. */
381 static Lisp_Object Qbitmap_spec_p
;
383 /* The next ID to assign to Lisp faces. */
385 static int next_lface_id
;
387 /* A vector mapping Lisp face Id's to face names. */
389 static Lisp_Object
*lface_id_to_name
;
390 static ptrdiff_t lface_id_to_name_size
;
392 /* TTY color-related functions (defined in tty-colors.el). */
394 static Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
396 /* The name of the function used to compute colors on TTYs. */
398 static Lisp_Object Qtty_color_alist
;
400 #ifdef HAVE_WINDOW_SYSTEM
402 /* Counter for calls to clear_face_cache. If this counter reaches
403 CLEAR_FONT_TABLE_COUNT, and a frame has more than
404 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
406 static int clear_font_table_count
;
407 #define CLEAR_FONT_TABLE_COUNT 100
408 #define CLEAR_FONT_TABLE_NFONTS 10
410 #endif /* HAVE_WINDOW_SYSTEM */
412 /* Non-zero means face attributes have been changed since the last
413 redisplay. Used in redisplay_internal. */
415 int face_change_count
;
417 /* Non-zero means don't display bold text if a face's foreground
418 and background colors are the inverse of the default colors of the
419 display. This is a kluge to suppress `bold black' foreground text
420 which is hard to read on an LCD monitor. */
422 static int tty_suppress_bold_inverse_default_colors_p
;
424 /* A list of the form `((x . y))' used to avoid consing in
425 Finternal_set_lisp_face_attribute. */
427 static Lisp_Object Vparam_value_alist
;
429 /* The total number of colors currently allocated. */
432 static int ncolors_allocated
;
433 static int npixmaps_allocated
;
437 /* Non-zero means the definition of the `menu' face for new frames has
440 static int menu_face_changed_default
;
442 struct named_merge_point
;
444 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
446 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
447 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
448 static bool realize_basic_faces (struct frame
*);
449 static bool realize_default_face (struct frame
*);
450 static void realize_named_face (struct frame
*, Lisp_Object
, int);
451 static struct face_cache
*make_face_cache (struct frame
*);
452 static void free_face_cache (struct face_cache
*);
453 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
454 int, struct named_merge_point
*);
456 #ifdef HAVE_WINDOW_SYSTEM
457 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
458 static void clear_face_gcs (struct face_cache
*);
459 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
461 #endif /* HAVE_WINDOW_SYSTEM */
463 /***********************************************************************
465 ***********************************************************************/
467 #ifdef HAVE_X_WINDOWS
469 #ifdef DEBUG_X_COLORS
471 /* The following is a poor mans infrastructure for debugging X color
472 allocation problems on displays with PseudoColor-8. Some X servers
473 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
474 color reference counts completely so that they don't signal an
475 error when a color is freed whose reference count is already 0.
476 Other X servers do. To help me debug this, the following code
477 implements a simple reference counting schema of its own, for a
478 single display/screen. --gerd. */
480 /* Reference counts for pixel colors. */
482 int color_count
[256];
484 /* Register color PIXEL as allocated. */
487 register_color (unsigned long pixel
)
489 eassert (pixel
< 256);
490 ++color_count
[pixel
];
494 /* Register color PIXEL as deallocated. */
497 unregister_color (unsigned long pixel
)
499 eassert (pixel
< 256);
500 if (color_count
[pixel
] > 0)
501 --color_count
[pixel
];
507 /* Register N colors from PIXELS as deallocated. */
510 unregister_colors (unsigned long *pixels
, int n
)
513 for (i
= 0; i
< n
; ++i
)
514 unregister_color (pixels
[i
]);
518 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
519 doc
: /* Dump currently allocated colors to stderr. */)
524 fputc ('\n', stderr
);
526 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
529 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
532 fputc ('\n', stderr
);
534 fputc ('\t', stderr
);
538 fputc ('\n', stderr
);
542 #endif /* DEBUG_X_COLORS */
545 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
546 color values. Interrupt input must be blocked when this function
550 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
552 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
554 /* If display has an immutable color map, freeing colors is not
555 necessary and some servers don't allow it. So don't do it. */
556 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
558 #ifdef DEBUG_X_COLORS
559 unregister_colors (pixels
, npixels
);
561 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
569 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
570 color values. Interrupt input must be blocked when this function
574 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
575 long unsigned int *pixels
, int npixels
)
577 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
578 int class = dpyinfo
->visual
->class;
580 /* If display has an immutable color map, freeing colors is not
581 necessary and some servers don't allow it. So don't do it. */
582 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
584 #ifdef DEBUG_X_COLORS
585 unregister_colors (pixels
, npixels
);
587 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
590 #endif /* USE_X_TOOLKIT */
592 /* Create and return a GC for use on frame F. GC values and mask
593 are given by XGCV and MASK. */
596 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
600 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
607 /* Free GC which was used on frame F. */
610 x_free_gc (struct frame
*f
, GC gc
)
612 eassert (input_blocked_p ());
613 IF_DEBUG (eassert (--ngcs
>= 0));
614 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
617 #endif /* HAVE_X_WINDOWS */
620 /* W32 emulation of GCs */
623 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
627 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
634 /* Free GC which was used on frame F. */
637 x_free_gc (struct frame
*f
, GC gc
)
639 IF_DEBUG (eassert (--ngcs
>= 0));
643 #endif /* HAVE_NTGUI */
646 /* NS emulation of GCs */
649 x_create_gc (struct frame
*f
,
653 GC gc
= xmalloc (sizeof *gc
);
659 x_free_gc (struct frame
*f
, GC gc
)
665 /***********************************************************************
667 ***********************************************************************/
669 /* Initialize face cache and basic faces for frame F. */
672 init_frame_faces (struct frame
*f
)
674 /* Make a face cache, if F doesn't have one. */
675 if (FRAME_FACE_CACHE (f
) == NULL
)
676 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
678 #ifdef HAVE_WINDOW_SYSTEM
679 /* Make the image cache. */
680 if (FRAME_WINDOW_P (f
))
682 /* We initialize the image cache when creating the first frame
683 on a terminal, and not during terminal creation. This way,
684 `x-open-connection' on a tty won't create an image cache. */
685 if (FRAME_IMAGE_CACHE (f
) == NULL
)
686 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
687 ++FRAME_IMAGE_CACHE (f
)->refcount
;
689 #endif /* HAVE_WINDOW_SYSTEM */
691 /* Realize basic faces. Must have enough information in frame
692 parameters to realize basic faces at this point. */
693 #ifdef HAVE_X_WINDOWS
694 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
697 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
700 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
702 if (!realize_basic_faces (f
))
707 /* Free face cache of frame F. Called from delete_frame. */
710 free_frame_faces (struct frame
*f
)
712 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
716 free_face_cache (face_cache
);
717 FRAME_FACE_CACHE (f
) = NULL
;
720 #ifdef HAVE_WINDOW_SYSTEM
721 if (FRAME_WINDOW_P (f
))
723 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
726 --image_cache
->refcount
;
727 if (image_cache
->refcount
== 0)
728 free_image_cache (f
);
731 #endif /* HAVE_WINDOW_SYSTEM */
735 /* Clear face caches, and recompute basic faces for frame F. Call
736 this after changing frame parameters on which those faces depend,
737 or when realized faces have been freed due to changing attributes
741 recompute_basic_faces (struct frame
*f
)
743 if (FRAME_FACE_CACHE (f
))
745 clear_face_cache (0);
746 if (!realize_basic_faces (f
))
752 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
753 try to free unused fonts, too. */
756 clear_face_cache (int clear_fonts_p
)
758 #ifdef HAVE_WINDOW_SYSTEM
759 Lisp_Object tail
, frame
;
762 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
764 /* From time to time see if we can unload some fonts. This also
765 frees all realized faces on all frames. Fonts needed by
766 faces will be loaded again when faces are realized again. */
767 clear_font_table_count
= 0;
769 FOR_EACH_FRAME (tail
, frame
)
771 struct frame
*f
= XFRAME (frame
);
772 if (FRAME_WINDOW_P (f
)
773 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
775 clear_font_cache (f
);
776 free_all_realized_faces (frame
);
782 /* Clear GCs of realized faces. */
783 FOR_EACH_FRAME (tail
, frame
)
785 struct frame
*f
= XFRAME (frame
);
786 if (FRAME_WINDOW_P (f
))
787 clear_face_gcs (FRAME_FACE_CACHE (f
));
789 clear_image_caches (Qnil
);
791 #endif /* HAVE_WINDOW_SYSTEM */
795 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
796 doc
: /* Clear face caches on all frames.
797 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
798 (Lisp_Object thoroughly
)
800 clear_face_cache (!NILP (thoroughly
));
802 ++windows_or_buffers_changed
;
807 /***********************************************************************
809 ***********************************************************************/
811 #ifdef HAVE_WINDOW_SYSTEM
813 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
814 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
815 A bitmap specification is either a string, a file name, or a list
816 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
817 HEIGHT is its height, and DATA is a string containing the bits of
818 the pixmap. Bits are stored row by row, each row occupies
819 \(WIDTH + 7)/8 bytes. */)
824 if (STRINGP (object
))
825 /* If OBJECT is a string, it's a file name. */
827 else if (CONSP (object
))
829 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
830 HEIGHT must be ints > 0, and DATA must be string large
831 enough to hold a bitmap of the specified size. */
832 Lisp_Object width
, height
, data
;
834 height
= width
= data
= Qnil
;
838 width
= XCAR (object
);
839 object
= XCDR (object
);
842 height
= XCAR (object
);
843 object
= XCDR (object
);
845 data
= XCAR (object
);
850 && RANGED_INTEGERP (1, width
, INT_MAX
)
851 && RANGED_INTEGERP (1, height
, INT_MAX
))
853 int bytes_per_row
= ((XINT (width
) + BITS_PER_CHAR
- 1)
855 if (XINT (height
) <= SBYTES (data
) / bytes_per_row
)
860 return pixmap_p
? Qt
: Qnil
;
864 /* Load a bitmap according to NAME (which is either a file name or a
865 pixmap spec) for use on frame F. Value is the bitmap_id (see
866 xfns.c). If NAME is nil, return with a bitmap id of zero. If
867 bitmap cannot be loaded, display a message saying so, and return
868 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
869 if these pointers are not null. */
872 load_pixmap (struct frame
*f
, Lisp_Object name
, unsigned int *w_ptr
,
880 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
885 /* Decode a bitmap spec into a bitmap. */
890 w
= XINT (Fcar (name
));
891 h
= XINT (Fcar (Fcdr (name
)));
892 bits
= Fcar (Fcdr (Fcdr (name
)));
894 bitmap_id
= x_create_bitmap_from_data (f
, SSDATA (bits
),
899 /* It must be a string -- a file name. */
900 bitmap_id
= x_create_bitmap_from_file (f
, name
);
906 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
917 ++npixmaps_allocated
;
920 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
923 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
929 #endif /* HAVE_WINDOW_SYSTEM */
933 /***********************************************************************
935 ***********************************************************************/
937 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
938 RGB_LIST should contain (at least) 3 lisp integers.
939 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
942 parse_rgb_list (Lisp_Object rgb_list
, XColor
*color
)
944 #define PARSE_RGB_LIST_FIELD(field) \
945 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
947 color->field = XINT (XCAR (rgb_list)); \
948 rgb_list = XCDR (rgb_list); \
953 PARSE_RGB_LIST_FIELD (red
);
954 PARSE_RGB_LIST_FIELD (green
);
955 PARSE_RGB_LIST_FIELD (blue
);
961 /* Lookup on frame F the color described by the lisp string COLOR.
962 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
963 non-zero, then the `standard' definition of the same color is
967 tty_lookup_color (struct frame
*f
, Lisp_Object color
, XColor
*tty_color
,
970 Lisp_Object frame
, color_desc
;
972 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
975 XSETFRAME (frame
, f
);
977 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
978 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
982 if (! INTEGERP (XCAR (XCDR (color_desc
))))
985 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
987 rgb
= XCDR (XCDR (color_desc
));
988 if (! parse_rgb_list (rgb
, tty_color
))
991 /* Should we fill in STD_COLOR too? */
994 /* Default STD_COLOR to the same as TTY_COLOR. */
995 *std_color
= *tty_color
;
997 /* Do a quick check to see if the returned descriptor is
998 actually _exactly_ equal to COLOR, otherwise we have to
999 lookup STD_COLOR separately. If it's impossible to lookup
1000 a standard color, we just give up and use TTY_COLOR. */
1001 if ((!STRINGP (XCAR (color_desc
))
1002 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1003 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1005 /* Look up STD_COLOR separately. */
1006 rgb
= call1 (Qtty_color_standard_values
, color
);
1007 if (! parse_rgb_list (rgb
, std_color
))
1014 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1015 /* We were called early during startup, and the colors are not
1016 yet set up in tty-defined-color-alist. Don't return a failure
1017 indication, since this produces the annoying "Unable to
1018 load color" messages in the *Messages* buffer. */
1021 /* tty-color-desc seems to have returned a bad value. */
1025 /* A version of defined_color for non-X frames. */
1028 tty_defined_color (struct frame
*f
, const char *color_name
,
1029 XColor
*color_def
, bool alloc
)
1034 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1036 color_def
->blue
= 0;
1037 color_def
->green
= 0;
1040 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1042 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1044 if (strcmp (color_name
, "unspecified-fg") == 0)
1045 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1046 else if (strcmp (color_name
, "unspecified-bg") == 0)
1047 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1050 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1057 /* Decide if color named COLOR_NAME is valid for the display
1058 associated with the frame F; if so, return the rgb values in
1059 COLOR_DEF. If ALLOC, allocate a new colormap cell.
1061 This does the right thing for any type of frame. */
1064 defined_color (struct frame
*f
, const char *color_name
, XColor
*color_def
,
1067 if (!FRAME_WINDOW_P (f
))
1068 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1069 #ifdef HAVE_X_WINDOWS
1070 else if (FRAME_X_P (f
))
1071 return x_defined_color (f
, color_name
, color_def
, alloc
);
1074 else if (FRAME_W32_P (f
))
1075 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1078 else if (FRAME_NS_P (f
))
1079 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1086 /* Given the index IDX of a tty color on frame F, return its name, a
1090 tty_color_name (struct frame
*f
, int idx
)
1092 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1095 Lisp_Object coldesc
;
1097 XSETFRAME (frame
, f
);
1098 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1100 if (!NILP (coldesc
))
1101 return XCAR (coldesc
);
1104 /* We can have an MSDOG frame under -nw for a short window of
1105 opportunity before internal_terminal_init is called. DTRT. */
1106 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1107 return msdos_stdcolor_name (idx
);
1110 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1111 return build_string (unspecified_fg
);
1112 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1113 return build_string (unspecified_bg
);
1115 return Qunspecified
;
1119 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1122 The criterion implemented here is not a terribly sophisticated one. */
1125 face_color_gray_p (struct frame
*f
, const char *color_name
)
1130 if (defined_color (f
, color_name
, &color
, 0))
1131 gray_p
= (/* Any color sufficiently close to black counts as gray. */
1132 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1134 ((eabs (color
.red
- color
.green
)
1135 < max (color
.red
, color
.green
) / 20)
1136 && (eabs (color
.green
- color
.blue
)
1137 < max (color
.green
, color
.blue
) / 20)
1138 && (eabs (color
.blue
- color
.red
)
1139 < max (color
.blue
, color
.red
) / 20)));
1147 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1148 BACKGROUND_P non-zero means the color will be used as background
1152 face_color_supported_p (struct frame
*f
, const char *color_name
,
1158 XSETFRAME (frame
, f
);
1160 #ifdef HAVE_WINDOW_SYSTEM
1162 ? (!NILP (Fxw_display_color_p (frame
))
1163 || xstrcasecmp (color_name
, "black") == 0
1164 || xstrcasecmp (color_name
, "white") == 0
1166 && face_color_gray_p (f
, color_name
))
1167 || (!NILP (Fx_display_grayscale_p (frame
))
1168 && face_color_gray_p (f
, color_name
)))
1171 tty_defined_color (f
, color_name
, ¬_used
, 0);
1175 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1176 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1177 FRAME specifies the frame and thus the display for interpreting COLOR.
1178 If FRAME is nil or omitted, use the selected frame. */)
1179 (Lisp_Object color
, Lisp_Object frame
)
1181 CHECK_STRING (color
);
1182 return (face_color_gray_p (decode_any_frame (frame
), SSDATA (color
))
1187 DEFUN ("color-supported-p", Fcolor_supported_p
,
1188 Scolor_supported_p
, 1, 3, 0,
1189 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1190 BACKGROUND-P non-nil means COLOR is used as a background.
1191 Otherwise, this function tells whether it can be used as a foreground.
1192 If FRAME is nil or omitted, use the selected frame.
1193 COLOR must be a valid color name. */)
1194 (Lisp_Object color
, Lisp_Object frame
, Lisp_Object background_p
)
1196 CHECK_STRING (color
);
1197 return (face_color_supported_p (decode_any_frame (frame
),
1198 SSDATA (color
), !NILP (background_p
))
1203 /* Load color with name NAME for use by face FACE on frame F.
1204 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1205 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1206 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1207 pixel color. If color cannot be loaded, display a message, and
1208 return the foreground, background or underline color of F, but
1209 record that fact in flags of the face so that we don't try to free
1213 load_color (struct frame
*f
, struct face
*face
, Lisp_Object name
,
1214 enum lface_attribute_index target_index
)
1218 eassert (STRINGP (name
));
1219 eassert (target_index
== LFACE_FOREGROUND_INDEX
1220 || target_index
== LFACE_BACKGROUND_INDEX
1221 || target_index
== LFACE_UNDERLINE_INDEX
1222 || target_index
== LFACE_OVERLINE_INDEX
1223 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1224 || target_index
== LFACE_BOX_INDEX
);
1226 /* if the color map is full, defined_color will return a best match
1227 to the values in an existing cell. */
1228 if (!defined_color (f
, SSDATA (name
), &color
, 1))
1230 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1232 switch (target_index
)
1234 case LFACE_FOREGROUND_INDEX
:
1235 face
->foreground_defaulted_p
= 1;
1236 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1239 case LFACE_BACKGROUND_INDEX
:
1240 face
->background_defaulted_p
= 1;
1241 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1244 case LFACE_UNDERLINE_INDEX
:
1245 face
->underline_defaulted_p
= 1;
1246 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1249 case LFACE_OVERLINE_INDEX
:
1250 face
->overline_color_defaulted_p
= 1;
1251 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1254 case LFACE_STRIKE_THROUGH_INDEX
:
1255 face
->strike_through_color_defaulted_p
= 1;
1256 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1259 case LFACE_BOX_INDEX
:
1260 face
->box_color_defaulted_p
= 1;
1261 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1270 ++ncolors_allocated
;
1277 #ifdef HAVE_WINDOW_SYSTEM
1279 /* Load colors for face FACE which is used on frame F. Colors are
1280 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1281 of ATTRS. If the background color specified is not supported on F,
1282 try to emulate gray colors with a stipple from Vface_default_stipple. */
1285 load_face_colors (struct frame
*f
, struct face
*face
,
1286 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1290 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1291 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1293 /* Swap colors if face is inverse-video. */
1294 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1302 /* Check for support for foreground, not for background because
1303 face_color_supported_p is smart enough to know that grays are
1304 "supported" as background because we are supposed to use stipple
1306 if (!face_color_supported_p (f
, SSDATA (bg
), 0)
1307 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1309 x_destroy_bitmap (f
, face
->stipple
);
1310 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1311 &face
->pixmap_w
, &face
->pixmap_h
);
1314 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1315 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1319 /* Free color PIXEL on frame F. */
1322 unload_color (struct frame
*f
, long unsigned int pixel
)
1324 #ifdef HAVE_X_WINDOWS
1328 x_free_colors (f
, &pixel
, 1);
1335 /* Free colors allocated for FACE. */
1338 free_face_colors (struct frame
*f
, struct face
*face
)
1340 /* PENDING(NS): need to do something here? */
1341 #ifdef HAVE_X_WINDOWS
1342 if (face
->colors_copied_bitwise_p
)
1347 if (!face
->foreground_defaulted_p
)
1349 x_free_colors (f
, &face
->foreground
, 1);
1350 IF_DEBUG (--ncolors_allocated
);
1353 if (!face
->background_defaulted_p
)
1355 x_free_colors (f
, &face
->background
, 1);
1356 IF_DEBUG (--ncolors_allocated
);
1359 if (face
->underline_p
1360 && !face
->underline_defaulted_p
)
1362 x_free_colors (f
, &face
->underline_color
, 1);
1363 IF_DEBUG (--ncolors_allocated
);
1366 if (face
->overline_p
1367 && !face
->overline_color_defaulted_p
)
1369 x_free_colors (f
, &face
->overline_color
, 1);
1370 IF_DEBUG (--ncolors_allocated
);
1373 if (face
->strike_through_p
1374 && !face
->strike_through_color_defaulted_p
)
1376 x_free_colors (f
, &face
->strike_through_color
, 1);
1377 IF_DEBUG (--ncolors_allocated
);
1380 if (face
->box
!= FACE_NO_BOX
1381 && !face
->box_color_defaulted_p
)
1383 x_free_colors (f
, &face
->box_color
, 1);
1384 IF_DEBUG (--ncolors_allocated
);
1388 #endif /* HAVE_X_WINDOWS */
1391 #endif /* HAVE_WINDOW_SYSTEM */
1395 /***********************************************************************
1397 ***********************************************************************/
1399 /* An enumerator for each field of an XLFD font name. */
1420 /* An enumerator for each possible slant value of a font. Taken from
1421 the XLFD specification. */
1429 XLFD_SLANT_REVERSE_ITALIC
,
1430 XLFD_SLANT_REVERSE_OBLIQUE
,
1434 /* Relative font weight according to XLFD documentation. */
1438 XLFD_WEIGHT_UNKNOWN
,
1439 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1440 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1441 XLFD_WEIGHT_LIGHT
, /* 30 */
1442 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1443 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1444 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1445 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1446 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1447 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1450 /* Relative proportionate width. */
1454 XLFD_SWIDTH_UNKNOWN
,
1455 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1456 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1457 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1458 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1459 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1460 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1461 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1462 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1463 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1466 /* Order by which font selection chooses fonts. The default values
1467 mean `first, find a best match for the font width, then for the
1468 font height, then for weight, then for slant.' This variable can be
1469 set via set-face-font-sort-order. */
1471 static int font_sort_order
[4];
1473 #ifdef HAVE_WINDOW_SYSTEM
1475 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1478 compare_fonts_by_sort_order (const void *v1
, const void *v2
)
1480 Lisp_Object
const *p1
= v1
;
1481 Lisp_Object
const *p2
= v2
;
1482 Lisp_Object font1
= *p1
;
1483 Lisp_Object font2
= *p2
;
1486 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1488 enum font_property_index idx
= font_props_for_sorting
[i
];
1489 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1492 if (idx
<= FONT_REGISTRY_INDEX
)
1495 result
= STRINGP (val2
) ? strcmp (SSDATA (val1
), SSDATA (val2
)) : -1;
1497 result
= STRINGP (val2
) ? 1 : 0;
1501 if (INTEGERP (val1
))
1502 result
= (INTEGERP (val2
) && XINT (val1
) >= XINT (val2
)
1503 ? XINT (val1
) > XINT (val2
)
1506 result
= INTEGERP (val2
) ? 1 : 0;
1514 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1515 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1516 If FAMILY is omitted or nil, list all families.
1517 Otherwise, FAMILY must be a string, possibly containing wildcards
1519 If FRAME is omitted or nil, use the selected frame.
1520 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1521 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1522 FAMILY is the font family name. POINT-SIZE is the size of the
1523 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1524 width, weight and slant of the font. These symbols are the same as for
1525 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1526 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1527 giving the registry and encoding of the font.
1528 The result list is sorted according to the current setting of
1529 the face font sort order. */)
1530 (Lisp_Object family
, Lisp_Object frame
)
1532 Lisp_Object font_spec
, list
, *drivers
, vec
;
1533 struct frame
*f
= decode_live_frame (frame
);
1534 ptrdiff_t i
, nfonts
;
1539 font_spec
= Ffont_spec (0, NULL
);
1542 CHECK_STRING (family
);
1543 font_parse_family_registry (family
, Qnil
, font_spec
);
1546 list
= font_list_entities (f
, font_spec
);
1550 /* Sort the font entities. */
1551 for (i
= 0; i
< 4; i
++)
1552 switch (font_sort_order
[i
])
1555 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1556 case XLFD_POINT_SIZE
:
1557 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1559 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1561 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1563 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1564 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1565 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1566 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1568 ndrivers
= XINT (Flength (list
));
1569 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1570 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1571 drivers
[i
] = XCAR (list
);
1572 vec
= Fvconcat (ndrivers
, drivers
);
1573 nfonts
= ASIZE (vec
);
1575 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1576 compare_fonts_by_sort_order
);
1579 for (i
= nfonts
- 1; i
>= 0; --i
)
1581 Lisp_Object font
= AREF (vec
, i
);
1582 Lisp_Object v
= make_uninit_vector (8);
1584 Lisp_Object spacing
;
1586 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1587 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1588 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1590 ASET (v
, 2, make_number (point
));
1591 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1592 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1593 spacing
= Ffont_get (font
, QCspacing
);
1594 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1595 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1596 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1598 result
= Fcons (v
, result
);
1605 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1606 doc
: /* Return a list of the names of available fonts matching PATTERN.
1607 If optional arguments FACE and FRAME are specified, return only fonts
1608 the same size as FACE on FRAME.
1610 PATTERN should be a string containing a font name in the XLFD,
1611 Fontconfig, or GTK format. A font name given in the XLFD format may
1612 contain wildcard characters:
1613 the * character matches any substring, and
1614 the ? character matches any single character.
1615 PATTERN is case-insensitive.
1617 The return value is a list of strings, suitable as arguments to
1620 Fonts Emacs can't use may or may not be excluded
1621 even if they match PATTERN and FACE.
1622 The optional fourth argument MAXIMUM sets a limit on how many
1623 fonts to match. The first MAXIMUM fonts are reported.
1624 The optional fifth argument WIDTH, if specified, is a number of columns
1625 occupied by a character of a font. In that case, return only fonts
1626 the WIDTH times as wide as FACE on FRAME. */)
1627 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1628 Lisp_Object maximum
, Lisp_Object width
)
1631 int size
, avgwidth
IF_LINT (= 0);
1633 check_window_system (NULL
);
1634 CHECK_STRING (pattern
);
1636 if (! NILP (maximum
))
1637 CHECK_NATNUM (maximum
);
1640 CHECK_NUMBER (width
);
1642 /* We can't simply call decode_window_system_frame because
1643 this function may be called before any frame is created. */
1644 f
= decode_live_frame (frame
);
1645 if (! FRAME_WINDOW_P (f
))
1647 /* Perhaps we have not yet created any frame. */
1653 XSETFRAME (frame
, f
);
1655 /* Determine the width standard for comparison with the fonts we find. */
1661 /* This is of limited utility since it works with character
1662 widths. Keep it for compatibility. --gerd. */
1663 int face_id
= lookup_named_face (f
, face
, 0);
1664 struct face
*width_face
= (face_id
< 0
1666 : FACE_FROM_ID (f
, face_id
));
1668 if (width_face
&& width_face
->font
)
1670 size
= width_face
->font
->pixel_size
;
1671 avgwidth
= width_face
->font
->average_width
;
1675 size
= FRAME_FONT (f
)->pixel_size
;
1676 avgwidth
= FRAME_FONT (f
)->average_width
;
1679 avgwidth
*= XINT (width
);
1683 Lisp_Object font_spec
;
1684 Lisp_Object args
[2], tail
;
1686 font_spec
= font_spec_from_name (pattern
);
1687 if (!FONTP (font_spec
))
1688 signal_error ("Invalid font name", pattern
);
1692 Ffont_put (font_spec
, QCsize
, make_number (size
));
1693 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1695 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1696 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1698 Lisp_Object font_entity
;
1700 font_entity
= XCAR (tail
);
1701 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1702 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1703 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1705 /* This is a scalable font. For backward compatibility,
1706 we set the specified size. */
1707 font_entity
= copy_font_spec (font_entity
);
1708 ASET (font_entity
, FONT_SIZE_INDEX
,
1709 AREF (font_spec
, FONT_SIZE_INDEX
));
1711 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1714 /* We don't have to check fontsets. */
1716 args
[1] = list_fontsets (f
, pattern
, size
);
1717 return Fnconc (2, args
);
1721 #endif /* HAVE_WINDOW_SYSTEM */
1724 /***********************************************************************
1726 ***********************************************************************/
1728 /* Access face attributes of face LFACE, a Lisp vector. */
1730 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1731 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1732 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1733 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1734 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1735 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1736 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1737 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1738 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1739 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1740 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1741 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1742 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1743 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1744 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1745 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1746 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1748 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1749 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1751 #define LFACEP(LFACE) \
1753 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1754 && EQ (AREF (LFACE, 0), Qface))
1759 /* Check consistency of Lisp face attribute vector ATTRS. */
1762 check_lface_attrs (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1764 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1765 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1766 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1767 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1768 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1769 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1770 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1771 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1772 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1773 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1774 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1775 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1776 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1777 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1778 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1779 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1780 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1781 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1782 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1783 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1784 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1785 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1786 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1787 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1788 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1789 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1790 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1791 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1792 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1793 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1794 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1795 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1796 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1797 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1798 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1799 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1800 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1801 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1802 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1803 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1804 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1805 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1806 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1807 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1808 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1809 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1810 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1811 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1812 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1813 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1814 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1815 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1816 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1817 #ifdef HAVE_WINDOW_SYSTEM
1818 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1819 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1820 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1821 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1822 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1823 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1824 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1825 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1826 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1827 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1832 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1835 check_lface (Lisp_Object lface
)
1839 eassert (LFACEP (lface
));
1840 check_lface_attrs (XVECTOR (lface
)->contents
);
1844 #else /* not GLYPH_DEBUG */
1846 #define check_lface_attrs(attrs) (void) 0
1847 #define check_lface(lface) (void) 0
1849 #endif /* GLYPH_DEBUG */
1853 /* Face-merge cycle checking. */
1855 enum named_merge_point_kind
1857 NAMED_MERGE_POINT_NORMAL
,
1858 NAMED_MERGE_POINT_REMAP
1861 /* A `named merge point' is simply a point during face-merging where we
1862 look up a face by name. We keep a stack of which named lookups we're
1863 currently processing so that we can easily detect cycles, using a
1864 linked- list of struct named_merge_point structures, typically
1865 allocated on the stack frame of the named lookup functions which are
1866 active (so no consing is required). */
1867 struct named_merge_point
1869 Lisp_Object face_name
;
1870 enum named_merge_point_kind named_merge_point_kind
;
1871 struct named_merge_point
*prev
;
1875 /* If a face merging cycle is detected for FACE_NAME, return 0,
1876 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1877 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1878 pointed to by NAMED_MERGE_POINTS, and return 1. */
1881 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1882 Lisp_Object face_name
,
1883 enum named_merge_point_kind named_merge_point_kind
,
1884 struct named_merge_point
**named_merge_points
)
1886 struct named_merge_point
*prev
;
1888 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1889 if (EQ (face_name
, prev
->face_name
))
1891 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1892 /* A cycle, so fail. */
1894 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1895 /* A remap `hides ' any previous normal merge points
1896 (because the remap means that it's actually different face),
1897 so as we know the current merge point must be normal, we
1898 can just assume it's OK. */
1902 new_named_merge_point
->face_name
= face_name
;
1903 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1904 new_named_merge_point
->prev
= *named_merge_points
;
1906 *named_merge_points
= new_named_merge_point
;
1912 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1913 to make it a symbol. If FACE_NAME is an alias for another face,
1914 return that face's name.
1916 Return default face in case of errors. */
1919 resolve_face_name (Lisp_Object face_name
, int signal_p
)
1921 Lisp_Object orig_face
;
1922 Lisp_Object tortoise
, hare
;
1924 if (STRINGP (face_name
))
1925 face_name
= intern (SSDATA (face_name
));
1927 if (NILP (face_name
) || !SYMBOLP (face_name
))
1930 orig_face
= face_name
;
1931 tortoise
= hare
= face_name
;
1936 hare
= Fget (hare
, Qface_alias
);
1937 if (NILP (hare
) || !SYMBOLP (hare
))
1941 hare
= Fget (hare
, Qface_alias
);
1942 if (NILP (hare
) || !SYMBOLP (hare
))
1945 tortoise
= Fget (tortoise
, Qface_alias
);
1946 if (EQ (hare
, tortoise
))
1949 xsignal1 (Qcircular_list
, orig_face
);
1958 /* Return the face definition of FACE_NAME on frame F. F null means
1959 return the definition for new frames. FACE_NAME may be a string or
1960 a symbol (apparently Emacs 20.2 allowed strings as face names in
1961 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
1962 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
1963 is zero, value is nil if FACE_NAME is not a valid face name. */
1965 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
1971 lface
= assq_no_quit (face_name
, f
->face_alist
);
1973 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
1976 lface
= XCDR (lface
);
1978 signal_error ("Invalid face", face_name
);
1980 check_lface (lface
);
1985 /* Return the face definition of FACE_NAME on frame F. F null means
1986 return the definition for new frames. FACE_NAME may be a string or
1987 a symbol (apparently Emacs 20.2 allowed strings as face names in
1988 face text properties; Ediff uses that). If FACE_NAME is an alias
1989 for another face, return that face's definition. If SIGNAL_P is
1990 non-zero, signal an error if FACE_NAME is not a valid face name.
1991 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
1994 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
1996 face_name
= resolve_face_name (face_name
, signal_p
);
1997 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2001 /* Get face attributes of face FACE_NAME from frame-local faces on
2002 frame F. Store the resulting attributes in ATTRS which must point
2003 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2004 is non-zero, signal an error if FACE_NAME does not name a face.
2005 Otherwise, value is zero if FACE_NAME is not a face. */
2008 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
2009 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
2014 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2017 memcpy (attrs
, XVECTOR (lface
)->contents
,
2018 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2020 return !NILP (lface
);
2023 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2024 F. Store the resulting attributes in ATTRS which must point to a
2025 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2026 alias for another face, use that face's definition. If SIGNAL_P is
2027 non-zero, signal an error if FACE_NAME does not name a face.
2028 Otherwise, value is zero if FACE_NAME is not a face. */
2031 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
2032 Lisp_Object attrs
[LFACE_VECTOR_SIZE
], int signal_p
,
2033 struct named_merge_point
*named_merge_points
)
2035 Lisp_Object face_remapping
;
2037 face_name
= resolve_face_name (face_name
, signal_p
);
2039 /* See if SYMBOL has been remapped to some other face (usually this
2040 is done buffer-locally). */
2041 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2042 if (CONSP (face_remapping
))
2044 struct named_merge_point named_merge_point
;
2046 if (push_named_merge_point (&named_merge_point
,
2047 face_name
, NAMED_MERGE_POINT_REMAP
,
2048 &named_merge_points
))
2052 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2053 attrs
[i
] = Qunspecified
;
2055 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2056 signal_p
, named_merge_points
);
2060 /* Default case, no remapping. */
2061 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2065 /* Non-zero if all attributes in face attribute vector ATTRS are
2066 specified, i.e. are non-nil. */
2069 lface_fully_specified_p (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
2073 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2074 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2075 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2078 return i
== LFACE_VECTOR_SIZE
;
2081 #ifdef HAVE_WINDOW_SYSTEM
2083 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2084 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2085 exception is `font' attribute. It is set to FONT_OBJECT regardless
2089 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
2090 Lisp_Object font_object
, int force_p
)
2093 struct font
*font
= XFONT_OBJECT (font_object
);
2095 /* Set attributes only if unspecified, otherwise face defaults for
2096 new frames would never take effect. If the font doesn't have a
2097 specific property, set a normal value for that. */
2099 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2101 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2103 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2106 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2108 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2110 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2113 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2115 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, FRAME_RES_Y (f
));
2118 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2121 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2123 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2124 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2126 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2128 val
= FONT_SLANT_FOR_FACE (font_object
);
2129 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2131 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2133 val
= FONT_WIDTH_FOR_FACE (font_object
);
2134 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2137 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2141 #endif /* HAVE_WINDOW_SYSTEM */
2144 /* Merges the face height FROM with the face height TO, and returns the
2145 merged height. If FROM is an invalid height, then INVALID is
2146 returned instead. FROM and TO may be either absolute face heights or
2147 `relative' heights; the returned value is always an absolute height
2148 unless both FROM and TO are relative. */
2151 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2153 Lisp_Object result
= invalid
;
2155 if (INTEGERP (from
))
2156 /* FROM is absolute, just use it as is. */
2158 else if (FLOATP (from
))
2159 /* FROM is a scale, use it to adjust TO. */
2162 /* relative X absolute => absolute */
2163 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2164 else if (FLOATP (to
))
2165 /* relative X relative => relative */
2166 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2167 else if (UNSPECIFIEDP (to
))
2170 else if (FUNCTIONP (from
))
2171 /* FROM is a function, which use to adjust TO. */
2173 /* Call function with current height as argument.
2174 From is the new height. */
2175 result
= safe_call1 (from
, to
);
2177 /* Ensure that if TO was absolute, so is the result. */
2178 if (INTEGERP (to
) && !INTEGERP (result
))
2186 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2187 store the resulting attributes in TO, which must be already be
2188 completely specified and contain only absolute attributes. Every
2189 specified attribute of FROM overrides the corresponding attribute of
2190 TO; relative attributes in FROM are merged with the absolute value in
2191 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2192 loops in face inheritance/remapping; it should be 0 when called from
2196 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2197 struct named_merge_point
*named_merge_points
)
2200 Lisp_Object font
= Qnil
;
2202 /* If FROM inherits from some other faces, merge their attributes into
2203 TO before merging FROM's direct attributes. Note that an :inherit
2204 attribute of `unspecified' is the same as one of nil; we never
2205 merge :inherit attributes, so nil is more correct, but lots of
2206 other code uses `unspecified' as a generic value for face attributes. */
2207 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2208 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2209 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2211 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2213 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2214 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2216 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2217 to
[LFACE_FONT_INDEX
] = font
;
2220 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2221 if (!UNSPECIFIEDP (from
[i
]))
2223 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2225 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2226 font_clear_prop (to
, FONT_SIZE_INDEX
);
2228 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2231 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2232 font_clear_prop (to
,
2233 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2234 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2235 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2236 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2237 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2238 : FONT_SLANT_INDEX
));
2242 /* If FROM specifies a font spec, make its contents take precedence
2243 over :family and other attributes. This is needed for face
2244 remapping using :font to work. */
2248 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2249 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2250 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2251 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2252 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2253 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2254 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2255 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2256 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2257 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2258 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2261 /* TO is always an absolute face, which should inherit from nothing.
2262 We blindly copy the :inherit attribute above and fix it up here. */
2263 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2266 /* Merge the named face FACE_NAME on frame F, into the vector of face
2267 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2268 inheritance. Returns true if FACE_NAME is a valid face name and
2269 merging succeeded. */
2272 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2273 struct named_merge_point
*named_merge_points
)
2275 struct named_merge_point named_merge_point
;
2277 if (push_named_merge_point (&named_merge_point
,
2278 face_name
, NAMED_MERGE_POINT_NORMAL
,
2279 &named_merge_points
))
2281 struct gcpro gcpro1
;
2282 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2283 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2287 GCPRO1 (named_merge_point
.face_name
);
2288 merge_face_vectors (f
, from
, to
, named_merge_points
);
2299 /* Merge face attributes from the lisp `face reference' FACE_REF on
2300 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2301 problems with FACE_REF cause an error message to be shown. Return
2302 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2303 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2304 list structure; it may be 0 for most callers.
2306 FACE_REF may be a single face specification or a list of such
2307 specifications. Each face specification can be:
2309 1. A symbol or string naming a Lisp face.
2311 2. A property list of the form (KEYWORD VALUE ...) where each
2312 KEYWORD is a face attribute name, and value is an appropriate value
2315 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2316 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2317 for compatibility with 20.2.
2319 Face specifications earlier in lists take precedence over later
2323 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2324 int err_msgs
, struct named_merge_point
*named_merge_points
)
2326 int ok
= 1; /* Succeed without an error? */
2328 if (CONSP (face_ref
))
2330 Lisp_Object first
= XCAR (face_ref
);
2332 if (EQ (first
, Qforeground_color
)
2333 || EQ (first
, Qbackground_color
))
2335 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2336 . COLOR). COLOR must be a string. */
2337 Lisp_Object color_name
= XCDR (face_ref
);
2338 Lisp_Object color
= first
;
2340 if (STRINGP (color_name
))
2342 if (EQ (color
, Qforeground_color
))
2343 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2345 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2350 add_to_log ("Invalid face color", color_name
, Qnil
);
2354 else if (SYMBOLP (first
)
2355 && *SDATA (SYMBOL_NAME (first
)) == ':')
2357 /* Assume this is the property list form. */
2358 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2360 Lisp_Object keyword
= XCAR (face_ref
);
2361 Lisp_Object value
= XCAR (XCDR (face_ref
));
2364 /* Specifying `unspecified' is a no-op. */
2365 if (EQ (value
, Qunspecified
))
2367 else if (EQ (keyword
, QCfamily
))
2369 if (STRINGP (value
))
2371 to
[LFACE_FAMILY_INDEX
] = value
;
2372 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2377 else if (EQ (keyword
, QCfoundry
))
2379 if (STRINGP (value
))
2381 to
[LFACE_FOUNDRY_INDEX
] = value
;
2382 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2387 else if (EQ (keyword
, QCheight
))
2389 Lisp_Object new_height
=
2390 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2392 if (! NILP (new_height
))
2394 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2395 font_clear_prop (to
, FONT_SIZE_INDEX
);
2400 else if (EQ (keyword
, QCweight
))
2402 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2404 to
[LFACE_WEIGHT_INDEX
] = value
;
2405 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2410 else if (EQ (keyword
, QCslant
))
2412 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2414 to
[LFACE_SLANT_INDEX
] = value
;
2415 font_clear_prop (to
, FONT_SLANT_INDEX
);
2420 else if (EQ (keyword
, QCunderline
))
2426 to
[LFACE_UNDERLINE_INDEX
] = value
;
2430 else if (EQ (keyword
, QCoverline
))
2435 to
[LFACE_OVERLINE_INDEX
] = value
;
2439 else if (EQ (keyword
, QCstrike_through
))
2444 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2448 else if (EQ (keyword
, QCbox
))
2451 value
= make_number (1);
2452 if (INTEGERP (value
)
2456 to
[LFACE_BOX_INDEX
] = value
;
2460 else if (EQ (keyword
, QCinverse_video
)
2461 || EQ (keyword
, QCreverse_video
))
2463 if (EQ (value
, Qt
) || NILP (value
))
2464 to
[LFACE_INVERSE_INDEX
] = value
;
2468 else if (EQ (keyword
, QCforeground
))
2470 if (STRINGP (value
))
2471 to
[LFACE_FOREGROUND_INDEX
] = value
;
2475 else if (EQ (keyword
, QCbackground
))
2477 if (STRINGP (value
))
2478 to
[LFACE_BACKGROUND_INDEX
] = value
;
2482 else if (EQ (keyword
, QCstipple
))
2484 #if defined (HAVE_WINDOW_SYSTEM)
2485 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2486 if (!NILP (pixmap_p
))
2487 to
[LFACE_STIPPLE_INDEX
] = value
;
2490 #endif /* HAVE_WINDOW_SYSTEM */
2492 else if (EQ (keyword
, QCwidth
))
2494 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2496 to
[LFACE_SWIDTH_INDEX
] = value
;
2497 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2502 else if (EQ (keyword
, QCfont
))
2505 to
[LFACE_FONT_INDEX
] = value
;
2509 else if (EQ (keyword
, QCinherit
))
2511 /* This is not really very useful; it's just like a
2512 normal face reference. */
2513 if (! merge_face_ref (f
, value
, to
,
2514 err_msgs
, named_merge_points
))
2522 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2526 face_ref
= XCDR (XCDR (face_ref
));
2531 /* This is a list of face refs. Those at the beginning of the
2532 list take precedence over what follows, so we have to merge
2533 from the end backwards. */
2534 Lisp_Object next
= XCDR (face_ref
);
2537 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2539 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2545 /* FACE_REF ought to be a face name. */
2546 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2547 if (!ok
&& err_msgs
)
2548 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2555 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2556 Sinternal_make_lisp_face
, 1, 2, 0,
2557 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2558 If FACE was not known as a face before, create a new one.
2559 If optional argument FRAME is specified, make a frame-local face
2560 for that frame. Otherwise operate on the global face definition.
2561 Value is a vector of face attributes. */)
2562 (Lisp_Object face
, Lisp_Object frame
)
2564 Lisp_Object global_lface
, lface
;
2568 CHECK_SYMBOL (face
);
2569 global_lface
= lface_from_face_name (NULL
, face
, 0);
2573 CHECK_LIVE_FRAME (frame
);
2575 lface
= lface_from_face_name (f
, face
, 0);
2578 f
= NULL
, lface
= Qnil
;
2580 /* Add a global definition if there is none. */
2581 if (NILP (global_lface
))
2583 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2585 ASET (global_lface
, 0, Qface
);
2586 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2587 Vface_new_frame_defaults
);
2589 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2590 face id to Lisp face is given by the vector lface_id_to_name.
2591 The mapping from Lisp face to Lisp face id is given by the
2592 property `face' of the Lisp face name. */
2593 if (next_lface_id
== lface_id_to_name_size
)
2595 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2596 sizeof *lface_id_to_name
);
2598 lface_id_to_name
[next_lface_id
] = face
;
2599 Fput (face
, Qface
, make_number (next_lface_id
));
2603 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2604 ASET (global_lface
, i
, Qunspecified
);
2606 /* Add a frame-local definition. */
2611 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2613 ASET (lface
, 0, Qface
);
2614 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2617 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2618 ASET (lface
, i
, Qunspecified
);
2621 lface
= global_lface
;
2623 /* Changing a named face means that all realized faces depending on
2624 that face are invalid. Since we cannot tell which realized faces
2625 depend on the face, make sure they are all removed. This is done
2626 by incrementing face_change_count. The next call to
2627 init_iterator will then free realized faces. */
2628 if (NILP (Fget (face
, Qface_no_inherit
)))
2630 ++face_change_count
;
2631 ++windows_or_buffers_changed
;
2634 eassert (LFACEP (lface
));
2635 check_lface (lface
);
2640 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2641 Sinternal_lisp_face_p
, 1, 2, 0,
2642 doc
: /* Return non-nil if FACE names a face.
2643 FACE should be a symbol or string.
2644 If optional second argument FRAME is non-nil, check for the
2645 existence of a frame-local face with name FACE on that frame.
2646 Otherwise check for the existence of a global face. */)
2647 (Lisp_Object face
, Lisp_Object frame
)
2651 face
= resolve_face_name (face
, 1);
2655 CHECK_LIVE_FRAME (frame
);
2656 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2659 lface
= lface_from_face_name (NULL
, face
, 0);
2665 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2666 Sinternal_copy_lisp_face
, 4, 4, 0,
2667 doc
: /* Copy face FROM to TO.
2668 If FRAME is t, copy the global face definition of FROM.
2669 Otherwise, copy the frame-local definition of FROM on FRAME.
2670 If NEW-FRAME is a frame, copy that data into the frame-local
2671 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2672 FRAME controls where the data is copied to.
2674 The value is TO. */)
2675 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2677 Lisp_Object lface
, copy
;
2679 CHECK_SYMBOL (from
);
2684 /* Copy global definition of FROM. We don't make copies of
2685 strings etc. because 20.2 didn't do it either. */
2686 lface
= lface_from_face_name (NULL
, from
, 1);
2687 copy
= Finternal_make_lisp_face (to
, Qnil
);
2691 /* Copy frame-local definition of FROM. */
2692 if (NILP (new_frame
))
2694 CHECK_LIVE_FRAME (frame
);
2695 CHECK_LIVE_FRAME (new_frame
);
2696 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2697 copy
= Finternal_make_lisp_face (to
, new_frame
);
2700 vcopy (copy
, 0, XVECTOR (lface
)->contents
, LFACE_VECTOR_SIZE
);
2702 /* Changing a named face means that all realized faces depending on
2703 that face are invalid. Since we cannot tell which realized faces
2704 depend on the face, make sure they are all removed. This is done
2705 by incrementing face_change_count. The next call to
2706 init_iterator will then free realized faces. */
2707 if (NILP (Fget (to
, Qface_no_inherit
)))
2709 ++face_change_count
;
2710 ++windows_or_buffers_changed
;
2717 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2718 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2719 doc
: /* Set attribute ATTR of FACE to VALUE.
2720 FRAME being a frame means change the face on that frame.
2721 FRAME nil means change the face of the selected frame.
2722 FRAME t means change the default for new frames.
2723 FRAME 0 means change the face on all frames, and change the default
2725 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2728 Lisp_Object old_value
= Qnil
;
2729 /* Set one of enum font_property_index (> 0) if ATTR is one of
2730 font-related attributes other than QCfont and QCfontset. */
2731 enum font_property_index prop_index
= 0;
2733 CHECK_SYMBOL (face
);
2734 CHECK_SYMBOL (attr
);
2736 face
= resolve_face_name (face
, 1);
2738 /* If FRAME is 0, change face on all frames, and change the
2739 default for new frames. */
2740 if (INTEGERP (frame
) && XINT (frame
) == 0)
2743 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2744 FOR_EACH_FRAME (tail
, frame
)
2745 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2749 /* Set lface to the Lisp attribute vector of FACE. */
2752 lface
= lface_from_face_name (NULL
, face
, 1);
2754 /* When updating face-new-frame-defaults, we put :ignore-defface
2755 where the caller wants `unspecified'. This forces the frame
2756 defaults to ignore the defface value. Otherwise, the defface
2757 will take effect, which is generally not what is intended.
2758 The value of that attribute will be inherited from some other
2759 face during face merging. See internal_merge_in_global_face. */
2760 if (UNSPECIFIEDP (value
))
2761 value
= QCignore_defface
;
2766 frame
= selected_frame
;
2768 CHECK_LIVE_FRAME (frame
);
2769 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2771 /* If a frame-local face doesn't exist yet, create one. */
2773 lface
= Finternal_make_lisp_face (face
, frame
);
2776 if (EQ (attr
, QCfamily
))
2778 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2780 CHECK_STRING (value
);
2781 if (SCHARS (value
) == 0)
2782 signal_error ("Invalid face family", value
);
2784 old_value
= LFACE_FAMILY (lface
);
2785 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2786 prop_index
= FONT_FAMILY_INDEX
;
2788 else if (EQ (attr
, QCfoundry
))
2790 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2792 CHECK_STRING (value
);
2793 if (SCHARS (value
) == 0)
2794 signal_error ("Invalid face foundry", value
);
2796 old_value
= LFACE_FOUNDRY (lface
);
2797 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2798 prop_index
= FONT_FOUNDRY_INDEX
;
2800 else if (EQ (attr
, QCheight
))
2802 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2804 if (EQ (face
, Qdefault
))
2806 /* The default face must have an absolute size. */
2807 if (!INTEGERP (value
) || XINT (value
) <= 0)
2808 signal_error ("Default face height not absolute and positive",
2813 /* For non-default faces, do a test merge with a random
2814 height to see if VALUE's ok. */
2815 Lisp_Object test
= merge_face_heights (value
,
2818 if (!INTEGERP (test
) || XINT (test
) <= 0)
2819 signal_error ("Face height does not produce a positive integer",
2824 old_value
= LFACE_HEIGHT (lface
);
2825 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2826 prop_index
= FONT_SIZE_INDEX
;
2828 else if (EQ (attr
, QCweight
))
2830 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2832 CHECK_SYMBOL (value
);
2833 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2834 signal_error ("Invalid face weight", value
);
2836 old_value
= LFACE_WEIGHT (lface
);
2837 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2838 prop_index
= FONT_WEIGHT_INDEX
;
2840 else if (EQ (attr
, QCslant
))
2842 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2844 CHECK_SYMBOL (value
);
2845 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2846 signal_error ("Invalid face slant", value
);
2848 old_value
= LFACE_SLANT (lface
);
2849 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2850 prop_index
= FONT_SLANT_INDEX
;
2852 else if (EQ (attr
, QCunderline
))
2856 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2858 else if (NILP (value
) || EQ (value
, Qt
))
2860 else if (STRINGP (value
) && SCHARS (value
) > 0)
2862 else if (CONSP (value
))
2864 Lisp_Object key
, val
, list
;
2867 /* FIXME? This errs on the side of acceptance. Eg it accepts:
2868 (defface foo '((t :underline 'foo) "doc")
2869 Maybe this is intentional, maybe it isn't.
2870 Non-nil symbols other than t are not documented as being valid.
2871 Eg compare with inverse-video, which explicitly rejects them.
2875 while (!NILP (CAR_SAFE(list
)))
2877 key
= CAR_SAFE (list
);
2878 list
= CDR_SAFE (list
);
2879 val
= CAR_SAFE (list
);
2880 list
= CDR_SAFE (list
);
2882 if (NILP (key
) || NILP (val
))
2888 else if (EQ (key
, QCcolor
)
2889 && !(EQ (val
, Qforeground_color
)
2890 || (STRINGP (val
) && SCHARS (val
) > 0)))
2896 else if (EQ (key
, QCstyle
)
2897 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2906 signal_error ("Invalid face underline", value
);
2908 old_value
= LFACE_UNDERLINE (lface
);
2909 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2911 else if (EQ (attr
, QCoverline
))
2913 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2914 if ((SYMBOLP (value
)
2916 && !EQ (value
, Qnil
))
2917 /* Overline color. */
2919 && SCHARS (value
) == 0))
2920 signal_error ("Invalid face overline", value
);
2922 old_value
= LFACE_OVERLINE (lface
);
2923 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2925 else if (EQ (attr
, QCstrike_through
))
2927 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2928 if ((SYMBOLP (value
)
2930 && !EQ (value
, Qnil
))
2931 /* Strike-through color. */
2933 && SCHARS (value
) == 0))
2934 signal_error ("Invalid face strike-through", value
);
2936 old_value
= LFACE_STRIKE_THROUGH (lface
);
2937 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2939 else if (EQ (attr
, QCbox
))
2943 /* Allow t meaning a simple box of width 1 in foreground color
2946 value
= make_number (1);
2948 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2950 else if (NILP (value
))
2952 else if (INTEGERP (value
))
2953 valid_p
= XINT (value
) != 0;
2954 else if (STRINGP (value
))
2955 valid_p
= SCHARS (value
) > 0;
2956 else if (CONSP (value
))
2972 if (EQ (k
, QCline_width
))
2974 if (!INTEGERP (v
) || XINT (v
) == 0)
2977 else if (EQ (k
, QCcolor
))
2979 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
2982 else if (EQ (k
, QCstyle
))
2984 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
2991 valid_p
= NILP (tem
);
2997 signal_error ("Invalid face box", value
);
2999 old_value
= LFACE_BOX (lface
);
3000 ASET (lface
, LFACE_BOX_INDEX
, value
);
3002 else if (EQ (attr
, QCinverse_video
)
3003 || EQ (attr
, QCreverse_video
))
3005 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3007 CHECK_SYMBOL (value
);
3008 if (!EQ (value
, Qt
) && !NILP (value
))
3009 signal_error ("Invalid inverse-video face attribute value", value
);
3011 old_value
= LFACE_INVERSE (lface
);
3012 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
3014 else if (EQ (attr
, QCforeground
))
3016 /* Compatibility with 20.x. */
3018 value
= Qunspecified
;
3019 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3021 /* Don't check for valid color names here because it depends
3022 on the frame (display) whether the color will be valid
3023 when the face is realized. */
3024 CHECK_STRING (value
);
3025 if (SCHARS (value
) == 0)
3026 signal_error ("Empty foreground color value", value
);
3028 old_value
= LFACE_FOREGROUND (lface
);
3029 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3031 else if (EQ (attr
, QCbackground
))
3033 /* Compatibility with 20.x. */
3035 value
= Qunspecified
;
3036 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3038 /* Don't check for valid color names here because it depends
3039 on the frame (display) whether the color will be valid
3040 when the face is realized. */
3041 CHECK_STRING (value
);
3042 if (SCHARS (value
) == 0)
3043 signal_error ("Empty background color value", value
);
3045 old_value
= LFACE_BACKGROUND (lface
);
3046 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3048 else if (EQ (attr
, QCstipple
))
3050 #if defined (HAVE_WINDOW_SYSTEM)
3051 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3053 && NILP (Fbitmap_spec_p (value
)))
3054 signal_error ("Invalid stipple attribute", value
);
3055 old_value
= LFACE_STIPPLE (lface
);
3056 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3057 #endif /* HAVE_WINDOW_SYSTEM */
3059 else if (EQ (attr
, QCwidth
))
3061 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3063 CHECK_SYMBOL (value
);
3064 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3065 signal_error ("Invalid face width", value
);
3067 old_value
= LFACE_SWIDTH (lface
);
3068 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3069 prop_index
= FONT_WIDTH_INDEX
;
3071 else if (EQ (attr
, QCfont
))
3073 #ifdef HAVE_WINDOW_SYSTEM
3074 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3076 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3080 old_value
= LFACE_FONT (lface
);
3081 if (! FONTP (value
))
3083 if (STRINGP (value
))
3085 Lisp_Object name
= value
;
3086 int fontset
= fs_query_fontset (name
, 0);
3089 name
= fontset_ascii (fontset
);
3090 value
= font_spec_from_name (name
);
3092 signal_error ("Invalid font name", name
);
3095 signal_error ("Invalid font or font-spec", value
);
3098 f
= XFRAME (selected_frame
);
3101 if (! FONT_OBJECT_P (value
))
3103 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3104 Lisp_Object font_object
;
3106 font_object
= font_load_for_lface (f
, attrs
, value
);
3107 if (NILP (font_object
))
3108 signal_error ("Font not available", value
);
3109 value
= font_object
;
3111 set_lface_from_font (f
, lface
, value
, 1);
3114 ASET (lface
, LFACE_FONT_INDEX
, value
);
3116 #endif /* HAVE_WINDOW_SYSTEM */
3118 else if (EQ (attr
, QCfontset
))
3120 #ifdef HAVE_WINDOW_SYSTEM
3121 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3125 old_value
= LFACE_FONTSET (lface
);
3126 tmp
= Fquery_fontset (value
, Qnil
);
3128 signal_error ("Invalid fontset name", value
);
3129 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3131 #endif /* HAVE_WINDOW_SYSTEM */
3133 else if (EQ (attr
, QCinherit
))
3136 if (SYMBOLP (value
))
3139 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3140 if (!SYMBOLP (XCAR (tail
)))
3143 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3145 signal_error ("Invalid face inheritance", value
);
3147 else if (EQ (attr
, QCbold
))
3149 old_value
= LFACE_WEIGHT (lface
);
3150 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3151 prop_index
= FONT_WEIGHT_INDEX
;
3153 else if (EQ (attr
, QCitalic
))
3156 old_value
= LFACE_SLANT (lface
);
3157 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3158 prop_index
= FONT_SLANT_INDEX
;
3161 signal_error ("Invalid face attribute name", attr
);
3165 /* If a font-related attribute other than QCfont and QCfontset
3166 is specified, and if the original QCfont attribute has a font
3167 (font-spec or font-object), set the corresponding property in
3168 the font to nil so that the font selector doesn't think that
3169 the attribute is mandatory. Also, clear the average
3171 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3174 /* Changing a named face means that all realized faces depending on
3175 that face are invalid. Since we cannot tell which realized faces
3176 depend on the face, make sure they are all removed. This is done
3177 by incrementing face_change_count. The next call to
3178 init_iterator will then free realized faces. */
3180 && NILP (Fget (face
, Qface_no_inherit
))
3181 && NILP (Fequal (old_value
, value
)))
3183 ++face_change_count
;
3184 ++windows_or_buffers_changed
;
3187 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3188 && NILP (Fequal (old_value
, value
)))
3194 if (EQ (face
, Qdefault
))
3196 #ifdef HAVE_WINDOW_SYSTEM
3197 /* Changed font-related attributes of the `default' face are
3198 reflected in changed `font' frame parameters. */
3200 && (prop_index
|| EQ (attr
, QCfont
))
3201 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3202 set_font_frame_param (frame
, lface
);
3204 #endif /* HAVE_WINDOW_SYSTEM */
3206 if (EQ (attr
, QCforeground
))
3207 param
= Qforeground_color
;
3208 else if (EQ (attr
, QCbackground
))
3209 param
= Qbackground_color
;
3211 #ifdef HAVE_WINDOW_SYSTEM
3213 else if (EQ (face
, Qscroll_bar
))
3215 /* Changing the colors of `scroll-bar' sets frame parameters
3216 `scroll-bar-foreground' and `scroll-bar-background'. */
3217 if (EQ (attr
, QCforeground
))
3218 param
= Qscroll_bar_foreground
;
3219 else if (EQ (attr
, QCbackground
))
3220 param
= Qscroll_bar_background
;
3222 #endif /* not HAVE_NTGUI */
3223 else if (EQ (face
, Qborder
))
3225 /* Changing background color of `border' sets frame parameter
3227 if (EQ (attr
, QCbackground
))
3228 param
= Qborder_color
;
3230 else if (EQ (face
, Qcursor
))
3232 /* Changing background color of `cursor' sets frame parameter
3234 if (EQ (attr
, QCbackground
))
3235 param
= Qcursor_color
;
3237 else if (EQ (face
, Qmouse
))
3239 /* Changing background color of `mouse' sets frame parameter
3241 if (EQ (attr
, QCbackground
))
3242 param
= Qmouse_color
;
3244 #endif /* HAVE_WINDOW_SYSTEM */
3245 else if (EQ (face
, Qmenu
))
3247 /* Indicate that we have to update the menu bar when realizing
3248 faces on FRAME. FRAME t change the default for new frames.
3249 We do this by setting the flag in new face caches. */
3252 struct frame
*f
= XFRAME (frame
);
3253 if (FRAME_FACE_CACHE (f
) == NULL
)
3254 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3255 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3258 menu_face_changed_default
= 1;
3264 /* Update `default-frame-alist', which is used for new frames. */
3266 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3269 /* Update the current frame's parameters. */
3272 cons
= XCAR (Vparam_value_alist
);
3273 XSETCAR (cons
, param
);
3274 XSETCDR (cons
, value
);
3275 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3284 /* Update the corresponding face when frame parameter PARAM on frame F
3285 has been assigned the value NEW_VALUE. */
3288 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3289 Lisp_Object new_value
)
3291 Lisp_Object face
= Qnil
;
3294 /* If there are no faces yet, give up. This is the case when called
3295 from Fx_create_frame, and we do the necessary things later in
3296 face-set-after-frame-defaults. */
3297 if (NILP (f
->face_alist
))
3300 if (EQ (param
, Qforeground_color
))
3303 lface
= lface_from_face_name (f
, face
, 1);
3304 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3305 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3306 realize_basic_faces (f
);
3308 else if (EQ (param
, Qbackground_color
))
3312 /* Changing the background color might change the background
3313 mode, so that we have to load new defface specs.
3314 Call frame-set-background-mode to do that. */
3315 XSETFRAME (frame
, f
);
3316 call1 (Qframe_set_background_mode
, frame
);
3319 lface
= lface_from_face_name (f
, face
, 1);
3320 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3321 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3322 realize_basic_faces (f
);
3324 #ifdef HAVE_WINDOW_SYSTEM
3325 else if (EQ (param
, Qborder_color
))
3328 lface
= lface_from_face_name (f
, face
, 1);
3329 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3330 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3332 else if (EQ (param
, Qcursor_color
))
3335 lface
= lface_from_face_name (f
, face
, 1);
3336 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3337 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3339 else if (EQ (param
, Qmouse_color
))
3342 lface
= lface_from_face_name (f
, face
, 1);
3343 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3344 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3348 /* Changing a named face means that all realized faces depending on
3349 that face are invalid. Since we cannot tell which realized faces
3350 depend on the face, make sure they are all removed. This is done
3351 by incrementing face_change_count. The next call to
3352 init_iterator will then free realized faces. */
3354 && NILP (Fget (face
, Qface_no_inherit
)))
3356 ++face_change_count
;
3357 ++windows_or_buffers_changed
;
3362 #ifdef HAVE_WINDOW_SYSTEM
3364 /* Set the `font' frame parameter of FRAME determined from the
3365 font-object set in `default' face attributes LFACE. */
3368 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3370 struct frame
*f
= XFRAME (frame
);
3373 if (FRAME_WINDOW_P (f
)
3374 /* Don't do anything if the font is `unspecified'. This can
3375 happen during frame creation. */
3376 && (font
= LFACE_FONT (lface
),
3377 ! UNSPECIFIEDP (font
)))
3379 if (FONT_SPEC_P (font
))
3381 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3384 ASET (lface
, LFACE_FONT_INDEX
, font
);
3386 f
->default_face_done_p
= 0;
3387 Fmodify_frame_parameters (frame
, list1 (Fcons (Qfont
, font
)));
3391 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3392 Sinternal_face_x_get_resource
, 2, 3, 0,
3393 doc
: /* Get the value of X resource RESOURCE, class CLASS.
3394 Returned value is for the display of frame FRAME. If FRAME is not
3395 specified or nil, use selected frame. This function exists because
3396 ordinary `x-get-resource' doesn't take a frame argument. */)
3397 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3399 Lisp_Object value
= Qnil
;
3402 CHECK_STRING (resource
);
3403 CHECK_STRING (class);
3404 f
= decode_live_frame (frame
);
3406 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (f
),
3407 resource
, class, Qnil
, Qnil
);
3413 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3414 If VALUE is "on" or "true", return t. If VALUE is "off" or
3415 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3416 error; if SIGNAL_P is zero, return 0. */
3419 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3421 Lisp_Object result
= make_number (0);
3423 eassert (STRINGP (value
));
3425 if (xstrcasecmp (SSDATA (value
), "on") == 0
3426 || xstrcasecmp (SSDATA (value
), "true") == 0)
3428 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3429 || xstrcasecmp (SSDATA (value
), "false") == 0)
3431 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3432 result
= Qunspecified
;
3434 signal_error ("Invalid face attribute value from X resource", value
);
3440 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3441 Finternal_set_lisp_face_attribute_from_resource
,
3442 Sinternal_set_lisp_face_attribute_from_resource
,
3443 3, 4, 0, doc
: /* */)
3444 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3446 CHECK_SYMBOL (face
);
3447 CHECK_SYMBOL (attr
);
3448 CHECK_STRING (value
);
3450 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3451 value
= Qunspecified
;
3452 else if (EQ (attr
, QCheight
))
3454 value
= Fstring_to_number (value
, make_number (10));
3455 if (XINT (value
) <= 0)
3456 signal_error ("Invalid face height from X resource", value
);
3458 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3459 value
= face_boolean_x_resource_value (value
, 1);
3460 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3461 value
= intern (SSDATA (value
));
3462 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3463 value
= face_boolean_x_resource_value (value
, 1);
3464 else if (EQ (attr
, QCunderline
)
3465 || EQ (attr
, QCoverline
)
3466 || EQ (attr
, QCstrike_through
))
3468 Lisp_Object boolean_value
;
3470 /* If the result of face_boolean_x_resource_value is t or nil,
3471 VALUE does NOT specify a color. */
3472 boolean_value
= face_boolean_x_resource_value (value
, 0);
3473 if (SYMBOLP (boolean_value
))
3474 value
= boolean_value
;
3476 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3477 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3479 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3482 #endif /* HAVE_WINDOW_SYSTEM */
3485 /***********************************************************************
3487 ***********************************************************************/
3489 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3491 /* Make menus on frame F appear as specified by the `menu' face. */
3494 x_update_menu_appearance (struct frame
*f
)
3496 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3500 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3505 ptrdiff_t bufsize
= sizeof line
;
3506 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3507 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3508 const char *myname
= SSDATA (Vx_resource_name
);
3511 const char *popup_path
= "popup_menu";
3513 const char *popup_path
= "menu.popup";
3516 if (STRINGP (LFACE_FOREGROUND (lface
)))
3518 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3520 SDATA (LFACE_FOREGROUND (lface
)));
3521 XrmPutLineResource (&rdb
, line
);
3522 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3523 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3524 XrmPutLineResource (&rdb
, line
);
3528 if (STRINGP (LFACE_BACKGROUND (lface
)))
3530 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3532 SDATA (LFACE_BACKGROUND (lface
)));
3533 XrmPutLineResource (&rdb
, line
);
3535 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3536 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3537 XrmPutLineResource (&rdb
, line
);
3542 /* On Solaris 5.8, it's been reported that the `menu' face
3543 can be unspecified here, during startup. Why this
3544 happens remains unknown. -- cyd */
3545 && FONTP (LFACE_FONT (lface
))
3546 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3547 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3548 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3549 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3550 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3551 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3553 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3555 const char *suffix
= "List";
3558 #if defined HAVE_X_I18N
3560 const char *suffix
= "Set";
3562 const char *suffix
= "";
3569 #if defined HAVE_X_I18N
3570 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3572 char *fontsetname
= SSDATA (xlfd
);
3574 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3575 myname
, suffix
, fontsetname
);
3576 XrmPutLineResource (&rdb
, line
);
3578 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3579 myname
, popup_path
, suffix
, fontsetname
);
3580 XrmPutLineResource (&rdb
, line
);
3582 if (fontsetname
!= SSDATA (xlfd
))
3583 xfree (fontsetname
);
3587 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3588 free_frame_menubar (f
);
3595 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3598 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3599 Sface_attribute_relative_p
,
3601 doc
: /* Check whether a face attribute value is relative.
3602 Specifically, this function returns t if the attribute ATTRIBUTE
3603 with the value VALUE is relative.
3605 A relative value is one that doesn't entirely override whatever is
3606 inherited from another face. For most possible attributes,
3607 the only relative value that users see is `unspecified'.
3608 However, for :height, floating point values are also relative. */)
3609 (Lisp_Object attribute
, Lisp_Object value
)
3611 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3613 else if (EQ (attribute
, QCheight
))
3614 return INTEGERP (value
) ? Qnil
: Qt
;
3619 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3621 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3622 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3623 the result will be absolute, otherwise it will be relative. */)
3624 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3626 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3628 else if (EQ (attribute
, QCheight
))
3629 return merge_face_heights (value1
, value2
, value1
);
3635 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3636 Sinternal_get_lisp_face_attribute
,
3638 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3639 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3640 face attribute name, signal an error.
3641 If the optional argument FRAME is given, report on face SYMBOL in that
3642 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3643 frames). If FRAME is omitted or nil, use the selected frame. */)
3644 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3646 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3647 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 1), value
= Qnil
;
3649 CHECK_SYMBOL (symbol
);
3650 CHECK_SYMBOL (keyword
);
3652 if (EQ (keyword
, QCfamily
))
3653 value
= LFACE_FAMILY (lface
);
3654 else if (EQ (keyword
, QCfoundry
))
3655 value
= LFACE_FOUNDRY (lface
);
3656 else if (EQ (keyword
, QCheight
))
3657 value
= LFACE_HEIGHT (lface
);
3658 else if (EQ (keyword
, QCweight
))
3659 value
= LFACE_WEIGHT (lface
);
3660 else if (EQ (keyword
, QCslant
))
3661 value
= LFACE_SLANT (lface
);
3662 else if (EQ (keyword
, QCunderline
))
3663 value
= LFACE_UNDERLINE (lface
);
3664 else if (EQ (keyword
, QCoverline
))
3665 value
= LFACE_OVERLINE (lface
);
3666 else if (EQ (keyword
, QCstrike_through
))
3667 value
= LFACE_STRIKE_THROUGH (lface
);
3668 else if (EQ (keyword
, QCbox
))
3669 value
= LFACE_BOX (lface
);
3670 else if (EQ (keyword
, QCinverse_video
)
3671 || EQ (keyword
, QCreverse_video
))
3672 value
= LFACE_INVERSE (lface
);
3673 else if (EQ (keyword
, QCforeground
))
3674 value
= LFACE_FOREGROUND (lface
);
3675 else if (EQ (keyword
, QCbackground
))
3676 value
= LFACE_BACKGROUND (lface
);
3677 else if (EQ (keyword
, QCstipple
))
3678 value
= LFACE_STIPPLE (lface
);
3679 else if (EQ (keyword
, QCwidth
))
3680 value
= LFACE_SWIDTH (lface
);
3681 else if (EQ (keyword
, QCinherit
))
3682 value
= LFACE_INHERIT (lface
);
3683 else if (EQ (keyword
, QCfont
))
3684 value
= LFACE_FONT (lface
);
3685 else if (EQ (keyword
, QCfontset
))
3686 value
= LFACE_FONTSET (lface
);
3688 signal_error ("Invalid face attribute name", keyword
);
3690 if (IGNORE_DEFFACE_P (value
))
3691 return Qunspecified
;
3697 DEFUN ("internal-lisp-face-attribute-values",
3698 Finternal_lisp_face_attribute_values
,
3699 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3700 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3701 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3704 Lisp_Object result
= Qnil
;
3706 CHECK_SYMBOL (attr
);
3708 if (EQ (attr
, QCunderline
) || EQ (attr
, QCoverline
)
3709 || EQ (attr
, QCstrike_through
)
3710 || EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3711 result
= list2 (Qt
, Qnil
);
3717 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3718 Sinternal_merge_in_global_face
, 2, 2, 0,
3719 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3720 Default face attributes override any local face attributes. */)
3721 (Lisp_Object face
, Lisp_Object frame
)
3724 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3725 struct frame
*f
= XFRAME (frame
);
3727 CHECK_LIVE_FRAME (frame
);
3728 global_lface
= lface_from_face_name (NULL
, face
, 1);
3729 local_lface
= lface_from_face_name (f
, face
, 0);
3730 if (NILP (local_lface
))
3731 local_lface
= Finternal_make_lisp_face (face
, frame
);
3733 /* Make every specified global attribute override the local one.
3734 BEWARE!! This is only used from `face-set-after-frame-default' where
3735 the local frame is defined from default specs in `face-defface-spec'
3736 and those should be overridden by global settings. Hence the strange
3737 "global before local" priority. */
3738 lvec
= XVECTOR (local_lface
)->contents
;
3739 gvec
= XVECTOR (global_lface
)->contents
;
3740 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3741 if (IGNORE_DEFFACE_P (gvec
[i
]))
3742 ASET (local_lface
, i
, Qunspecified
);
3743 else if (! UNSPECIFIEDP (gvec
[i
]))
3744 ASET (local_lface
, i
, AREF (global_lface
, i
));
3746 /* If the default face was changed, update the face cache and the
3747 `font' frame parameter. */
3748 if (EQ (face
, Qdefault
))
3750 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3751 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3752 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3754 /* This can be NULL (e.g., in batch mode). */
3757 /* Ensure that the face vector is fully specified by merging
3758 the previously-cached vector. */
3759 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3760 merge_face_vectors (f
, lvec
, attrs
, 0);
3761 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3762 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3764 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3765 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3766 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3767 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3768 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3769 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3770 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3773 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3774 Fmodify_frame_parameters (frame
, list1 (Fcons (Qfont
, name
)));
3777 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3778 Fmodify_frame_parameters (frame
,
3779 list1 (Fcons (Qforeground_color
,
3780 gvec
[LFACE_FOREGROUND_INDEX
])));
3782 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3783 Fmodify_frame_parameters (frame
,
3784 list1 (Fcons (Qbackground_color
,
3785 gvec
[LFACE_BACKGROUND_INDEX
])));
3793 /* The following function is implemented for compatibility with 20.2.
3794 The function is used in x-resolve-fonts when it is asked to
3795 return fonts with the same size as the font of a face. This is
3796 done in fontset.el. */
3798 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3799 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3800 The font name is, by default, for ASCII characters.
3801 If the optional argument FRAME is given, report on face FACE in that frame.
3802 If FRAME is t, report on the defaults for face FACE (for new frames).
3803 The font default for a face is either nil, or a list
3804 of the form (bold), (italic) or (bold italic).
3805 If FRAME is omitted or nil, use the selected frame. And, in this case,
3806 if the optional third argument CHARACTER is given,
3807 return the font name used for CHARACTER. */)
3808 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3812 Lisp_Object result
= Qnil
;
3813 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3815 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3816 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3817 result
= Fcons (Qbold
, result
);
3819 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3820 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3821 result
= Fcons (Qitalic
, result
);
3827 struct frame
*f
= decode_live_frame (frame
);
3828 int face_id
= lookup_named_face (f
, face
, 1);
3829 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3833 #ifdef HAVE_WINDOW_SYSTEM
3834 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3836 CHECK_CHARACTER (character
);
3837 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3838 fface
= FACE_FROM_ID (f
, face_id
);
3841 ? fface
->font
->props
[FONT_NAME_INDEX
]
3843 #else /* !HAVE_WINDOW_SYSTEM */
3844 return build_string (FRAME_MSDOS_P (f
)
3846 : FRAME_W32_P (f
) ? "w32term"
3853 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3854 all attributes are `equal'. Tries to be fast because this function
3855 is called quite often. */
3858 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3860 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3861 and the other is specified. */
3862 if (XTYPE (v1
) != XTYPE (v2
))
3871 if (SBYTES (v1
) != SBYTES (v2
))
3874 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3881 return !NILP (Fequal (v1
, v2
));
3886 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3887 all attributes are `equal'. Tries to be fast because this function
3888 is called quite often. */
3891 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3896 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3897 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3903 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3904 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3905 doc
: /* True if FACE1 and FACE2 are equal.
3906 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3907 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3908 If FRAME is omitted or nil, use the selected frame. */)
3909 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3913 Lisp_Object lface1
, lface2
;
3915 /* Don't use decode_window_system_frame here because this function
3916 is called before X frames exist. At that time, if FRAME is nil,
3917 selected_frame will be used which is the frame dumped with
3918 Emacs. That frame is not an X frame. */
3919 f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3921 lface1
= lface_from_face_name (f
, face1
, 1);
3922 lface2
= lface_from_face_name (f
, face2
, 1);
3923 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3924 XVECTOR (lface2
)->contents
);
3925 return equal_p
? Qt
: Qnil
;
3929 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3930 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3931 doc
: /* True if FACE has no attribute specified.
3932 If the optional argument FRAME is given, report on face FACE in that frame.
3933 If FRAME is t, report on the defaults for face FACE (for new frames).
3934 If FRAME is omitted or nil, use the selected frame. */)
3935 (Lisp_Object face
, Lisp_Object frame
)
3937 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3938 Lisp_Object lface
= lface_from_face_name (f
, face
, 1);
3941 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3942 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3945 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3949 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
3951 doc
: /* Return an alist of frame-local faces defined on FRAME.
3952 For internal use only. */)
3955 return decode_live_frame (frame
)->face_alist
;
3959 /* Return a hash code for Lisp string STRING with case ignored. Used
3960 below in computing a hash value for a Lisp face. */
3963 hash_string_case_insensitive (Lisp_Object string
)
3965 const unsigned char *s
;
3967 eassert (STRINGP (string
));
3968 for (s
= SDATA (string
); *s
; ++s
)
3969 hash
= (hash
<< 1) ^ c_tolower (*s
);
3974 /* Return a hash code for face attribute vector V. */
3977 lface_hash (Lisp_Object
*v
)
3979 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
3980 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
3981 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
3982 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
3983 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
3984 ^ XHASH (v
[LFACE_SLANT_INDEX
])
3985 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
3986 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
3989 #ifdef HAVE_WINDOW_SYSTEM
3991 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
3992 considering charsets/registries). They do if they specify the same
3993 family, point size, weight, width, slant, and font. Both
3994 LFACE1 and LFACE2 must be fully-specified. */
3997 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
3999 eassert (lface_fully_specified_p (lface1
)
4000 && lface_fully_specified_p (lface2
));
4001 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4002 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4003 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4004 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4005 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4006 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4007 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4008 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4009 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4010 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4011 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4012 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4013 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4014 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4018 #endif /* HAVE_WINDOW_SYSTEM */
4020 /***********************************************************************
4022 ***********************************************************************/
4024 /* Allocate and return a new realized face for Lisp face attribute
4027 static struct face
*
4028 make_realized_face (Lisp_Object
*attr
)
4030 struct face
*face
= xzalloc (sizeof *face
);
4031 face
->ascii_face
= face
;
4032 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4037 /* Free realized face FACE, including its X resources. FACE may
4041 free_realized_face (struct frame
*f
, struct face
*face
)
4045 #ifdef HAVE_WINDOW_SYSTEM
4046 if (FRAME_WINDOW_P (f
))
4048 /* Free fontset of FACE if it is ASCII face. */
4049 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4050 free_face_fontset (f
, face
);
4055 font_done_for_face (f
, face
);
4056 x_free_gc (f
, face
->gc
);
4061 free_face_colors (f
, face
);
4062 x_destroy_bitmap (f
, face
->stipple
);
4064 #endif /* HAVE_WINDOW_SYSTEM */
4071 /* Prepare face FACE for subsequent display on frame F. This
4072 allocated GCs if they haven't been allocated yet or have been freed
4073 by clearing the face cache. */
4076 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4078 #ifdef HAVE_WINDOW_SYSTEM
4079 eassert (FRAME_WINDOW_P (f
));
4084 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4086 xgcv
.foreground
= face
->foreground
;
4087 xgcv
.background
= face
->background
;
4088 #ifdef HAVE_X_WINDOWS
4089 xgcv
.graphics_exposures
= False
;
4093 #ifdef HAVE_X_WINDOWS
4096 xgcv
.fill_style
= FillOpaqueStippled
;
4097 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4098 mask
|= GCFillStyle
| GCStipple
;
4101 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4103 font_prepare_for_face (f
, face
);
4106 #endif /* HAVE_WINDOW_SYSTEM */
4110 /* Returns the `distance' between the colors X and Y. */
4113 color_distance (XColor
*x
, XColor
*y
)
4115 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4116 Quoting from that paper:
4118 This formula has results that are very close to L*u*v* (with the
4119 modified lightness curve) and, more importantly, it is a more even
4120 algorithm: it does not have a range of colors where it suddenly
4121 gives far from optimal results.
4123 See <http://www.compuphase.com/cmetric.htm> for more info. */
4125 long r
= (x
->red
- y
->red
) >> 8;
4126 long g
= (x
->green
- y
->green
) >> 8;
4127 long b
= (x
->blue
- y
->blue
) >> 8;
4128 long r_mean
= (x
->red
+ y
->red
) >> 9;
4131 (((512 + r_mean
) * r
* r
) >> 8)
4133 + (((767 - r_mean
) * b
* b
) >> 8);
4137 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4138 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4139 COLOR1 and COLOR2 may be either strings containing the color name,
4140 or lists of the form (RED GREEN BLUE).
4141 If FRAME is unspecified or nil, the current frame is used. */)
4142 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4144 struct frame
*f
= decode_live_frame (frame
);
4145 XColor cdef1
, cdef2
;
4147 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4148 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4149 signal_error ("Invalid color", color1
);
4150 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4151 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4152 signal_error ("Invalid color", color2
);
4154 return make_number (color_distance (&cdef1
, &cdef2
));
4158 /***********************************************************************
4160 ***********************************************************************/
4162 /* Return a new face cache for frame F. */
4164 static struct face_cache
*
4165 make_face_cache (struct frame
*f
)
4167 struct face_cache
*c
= xmalloc (sizeof *c
);
4169 c
->buckets
= xzalloc (FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
);
4172 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4174 c
->menu_face_changed_p
= menu_face_changed_default
;
4178 #ifdef HAVE_WINDOW_SYSTEM
4180 /* Clear out all graphics contexts for all realized faces, except for
4181 the basic faces. This should be done from time to time just to avoid
4182 keeping too many graphics contexts that are no longer needed. */
4185 clear_face_gcs (struct face_cache
*c
)
4187 if (c
&& FRAME_WINDOW_P (c
->f
))
4190 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4192 struct face
*face
= c
->faces_by_id
[i
];
4193 if (face
&& face
->gc
)
4197 font_done_for_face (c
->f
, face
);
4198 x_free_gc (c
->f
, face
->gc
);
4206 #endif /* HAVE_WINDOW_SYSTEM */
4208 /* Free all realized faces in face cache C, including basic faces.
4209 C may be null. If faces are freed, make sure the frame's current
4210 matrix is marked invalid, so that a display caused by an expose
4211 event doesn't try to use faces we destroyed. */
4214 free_realized_faces (struct face_cache
*c
)
4219 struct frame
*f
= c
->f
;
4221 /* We must block input here because we can't process X events
4222 safely while only some faces are freed, or when the frame's
4223 current matrix still references freed faces. */
4226 for (i
= 0; i
< c
->used
; ++i
)
4228 free_realized_face (f
, c
->faces_by_id
[i
]);
4229 c
->faces_by_id
[i
] = NULL
;
4233 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4234 memset (c
->buckets
, 0, size
);
4236 /* Must do a thorough redisplay the next time. Mark current
4237 matrices as invalid because they will reference faces freed
4238 above. This function is also called when a frame is
4239 destroyed. In this case, the root window of F is nil. */
4240 if (WINDOWP (f
->root_window
))
4242 clear_current_matrices (f
);
4243 ++windows_or_buffers_changed
;
4251 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4252 This is done after attributes of a named face have been changed,
4253 because we can't tell which realized faces depend on that face. */
4256 free_all_realized_faces (Lisp_Object frame
)
4261 FOR_EACH_FRAME (rest
, frame
)
4262 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4265 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4269 /* Free face cache C and faces in it, including their X resources. */
4272 free_face_cache (struct face_cache
*c
)
4276 free_realized_faces (c
);
4278 xfree (c
->faces_by_id
);
4284 /* Cache realized face FACE in face cache C. HASH is the hash value
4285 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4286 FACE), insert the new face to the beginning of the collision list
4287 of the face hash table of C. Otherwise, add the new face to the
4288 end of the collision list. This way, lookup_face can quickly find
4289 that a requested face is not cached. */
4292 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4294 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4298 if (face
->ascii_face
!= face
)
4300 struct face
*last
= c
->buckets
[i
];
4311 c
->buckets
[i
] = face
;
4312 face
->prev
= face
->next
= NULL
;
4318 face
->next
= c
->buckets
[i
];
4320 face
->next
->prev
= face
;
4321 c
->buckets
[i
] = face
;
4324 /* Find a free slot in C->faces_by_id and use the index of the free
4325 slot as FACE->id. */
4326 for (i
= 0; i
< c
->used
; ++i
)
4327 if (c
->faces_by_id
[i
] == NULL
)
4332 /* Check that FACE got a unique id. */
4337 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4338 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4344 #endif /* GLYPH_DEBUG */
4346 /* Maybe enlarge C->faces_by_id. */
4349 if (c
->used
== c
->size
)
4350 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4351 sizeof *c
->faces_by_id
);
4355 c
->faces_by_id
[i
] = face
;
4359 /* Remove face FACE from cache C. */
4362 uncache_face (struct face_cache
*c
, struct face
*face
)
4364 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4367 face
->prev
->next
= face
->next
;
4369 c
->buckets
[i
] = face
->next
;
4372 face
->next
->prev
= face
->prev
;
4374 c
->faces_by_id
[face
->id
] = NULL
;
4375 if (face
->id
== c
->used
)
4380 /* Look up a realized face with face attributes ATTR in the face cache
4381 of frame F. The face will be used to display ASCII characters.
4382 Value is the ID of the face found. If no suitable face is found,
4383 realize a new one. */
4386 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4388 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4393 eassert (cache
!= NULL
);
4394 check_lface_attrs (attr
);
4396 /* Look up ATTR in the face cache. */
4397 hash
= lface_hash (attr
);
4398 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4400 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4402 if (face
->ascii_face
!= face
)
4404 /* There's no more ASCII face. */
4408 if (face
->hash
== hash
4409 && lface_equal_p (face
->lface
, attr
))
4413 /* If not found, realize a new face. */
4415 face
= realize_face (cache
, attr
, -1);
4418 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4419 #endif /* GLYPH_DEBUG */
4424 #ifdef HAVE_WINDOW_SYSTEM
4425 /* Look up a realized face that has the same attributes as BASE_FACE
4426 except for the font in the face cache of frame F. If FONT-OBJECT
4427 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4428 the face has no font. Value is the ID of the face found. If no
4429 suitable face is found, realize a new one. */
4432 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4434 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4439 eassert (cache
!= NULL
);
4440 base_face
= base_face
->ascii_face
;
4441 hash
= lface_hash (base_face
->lface
);
4442 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4444 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4446 if (face
->ascii_face
== face
)
4448 if (face
->ascii_face
== base_face
4449 && face
->font
== (NILP (font_object
) ? NULL
4450 : XFONT_OBJECT (font_object
))
4451 && lface_equal_p (face
->lface
, base_face
->lface
))
4455 /* If not found, realize a new face. */
4456 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4459 #endif /* HAVE_WINDOW_SYSTEM */
4461 /* Return the face id of the realized face for named face SYMBOL on
4462 frame F suitable for displaying ASCII characters. Value is -1 if
4463 the face couldn't be determined, which might happen if the default
4464 face isn't realized and cannot be realized. */
4467 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4469 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4470 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4471 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4473 if (default_face
== NULL
)
4475 if (!realize_basic_faces (f
))
4477 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4478 if (default_face
== NULL
)
4479 emacs_abort (); /* realize_basic_faces must have set it up */
4482 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4485 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4486 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4488 return lookup_face (f
, attrs
);
4492 /* Return the display face-id of the basic face whose canonical face-id
4493 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4494 basic face has bee remapped via Vface_remapping_alist. This function is
4495 conservative: if something goes wrong, it will simply return FACE_ID
4496 rather than signal an error. */
4499 lookup_basic_face (struct frame
*f
, int face_id
)
4501 Lisp_Object name
, mapping
;
4502 int remapped_face_id
;
4504 if (NILP (Vface_remapping_alist
))
4505 return face_id
; /* Nothing to do. */
4509 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4510 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4511 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4512 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4513 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4514 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4515 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4516 case BORDER_FACE_ID
: name
= Qborder
; break;
4517 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4518 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4519 case MENU_FACE_ID
: name
= Qmenu
; break;
4522 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4525 /* Do a quick scan through Vface_remapping_alist, and return immediately
4526 if there is no remapping for face NAME. This is just an optimization
4527 for the very common no-remapping case. */
4528 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4530 return face_id
; /* Give up. */
4532 /* If there is a remapping entry, lookup the face using NAME, which will
4533 handle the remapping too. */
4534 remapped_face_id
= lookup_named_face (f
, name
, 0);
4535 if (remapped_face_id
< 0)
4536 return face_id
; /* Give up. */
4538 return remapped_face_id
;
4542 /* Return a face for charset ASCII that is like the face with id
4543 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4544 STEPS < 0 means larger. Value is the id of the face. */
4547 smaller_face (struct frame
*f
, int face_id
, int steps
)
4549 #ifdef HAVE_WINDOW_SYSTEM
4551 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4552 int pt
, last_pt
, last_height
;
4555 struct face
*new_face
;
4557 /* If not called for an X frame, just return the original face. */
4558 if (FRAME_TERMCAP_P (f
))
4561 /* Try in increments of 1/2 pt. */
4562 delta
= steps
< 0 ? 5 : -5;
4563 steps
= eabs (steps
);
4565 face
= FACE_FROM_ID (f
, face_id
);
4566 memcpy (attrs
, face
->lface
, sizeof attrs
);
4567 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4568 new_face_id
= face_id
;
4569 last_height
= FONT_HEIGHT (face
->font
);
4573 /* Give up if we cannot find a font within 10pt. */
4574 && eabs (last_pt
- pt
) < 100)
4576 /* Look up a face for a slightly smaller/larger font. */
4578 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4579 new_face_id
= lookup_face (f
, attrs
);
4580 new_face
= FACE_FROM_ID (f
, new_face_id
);
4582 /* If height changes, count that as one step. */
4583 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4584 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4587 last_height
= FONT_HEIGHT (new_face
->font
);
4594 #else /* not HAVE_WINDOW_SYSTEM */
4598 #endif /* not HAVE_WINDOW_SYSTEM */
4602 /* Return a face for charset ASCII that is like the face with id
4603 FACE_ID on frame F, but has height HEIGHT. */
4606 face_with_height (struct frame
*f
, int face_id
, int height
)
4608 #ifdef HAVE_WINDOW_SYSTEM
4610 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4612 if (FRAME_TERMCAP_P (f
)
4616 face
= FACE_FROM_ID (f
, face_id
);
4617 memcpy (attrs
, face
->lface
, sizeof attrs
);
4618 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4619 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4620 face_id
= lookup_face (f
, attrs
);
4621 #endif /* HAVE_WINDOW_SYSTEM */
4627 /* Return the face id of the realized face for named face SYMBOL on
4628 frame F suitable for displaying ASCII characters, and use
4629 attributes of the face FACE_ID for attributes that aren't
4630 completely specified by SYMBOL. This is like lookup_named_face,
4631 except that the default attributes come from FACE_ID, not from the
4632 default face. FACE_ID is assumed to be already realized. */
4635 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4638 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4639 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4640 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4645 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4648 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4649 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4650 return lookup_face (f
, attrs
);
4653 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4654 Sface_attributes_as_vector
, 1, 1, 0,
4655 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4659 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4661 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4668 /***********************************************************************
4669 Face capability testing
4670 ***********************************************************************/
4673 /* If the distance (as returned by color_distance) between two colors is
4674 less than this, then they are considered the same, for determining
4675 whether a color is supported or not. The range of values is 0-65535. */
4677 #define TTY_SAME_COLOR_THRESHOLD 10000
4679 #ifdef HAVE_WINDOW_SYSTEM
4681 /* Return non-zero if all the face attributes in ATTRS are supported
4682 on the window-system frame F.
4684 The definition of `supported' is somewhat heuristic, but basically means
4685 that a face containing all the attributes in ATTRS, when merged with the
4686 default face for display, can be represented in a way that's
4688 \(1) different in appearance than the default face, and
4689 \(2) `close in spirit' to what the attributes specify, if not exact. */
4692 x_supports_face_attributes_p (struct frame
*f
,
4693 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4694 struct face
*def_face
)
4696 Lisp_Object
*def_attrs
= def_face
->lface
;
4698 /* Check that other specified attributes are different that the default
4700 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4701 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4702 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4703 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4704 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4705 def_attrs
[LFACE_INVERSE_INDEX
]))
4706 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4707 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4708 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4709 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4710 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4711 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4712 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4713 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4714 def_attrs
[LFACE_STIPPLE_INDEX
]))
4715 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4716 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4717 def_attrs
[LFACE_OVERLINE_INDEX
]))
4718 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4719 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4720 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4721 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4722 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4723 def_attrs
[LFACE_BOX_INDEX
])))
4726 /* Check font-related attributes, as those are the most commonly
4727 "unsupported" on a window-system (because of missing fonts). */
4728 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4729 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4730 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4731 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4732 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4733 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4737 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4740 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4742 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4744 face_id
= lookup_face (f
, merged_attrs
);
4745 face
= FACE_FROM_ID (f
, face_id
);
4748 error ("Cannot make face");
4750 /* If the font is the same, or no font is found, then not
4752 if (face
->font
== def_face
->font
4755 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4756 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4760 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4761 || face
->font
->driver
->case_sensitive
)
4763 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4764 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4765 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4766 s2
, make_number (0), Qnil
, Qt
), Qt
))
4772 /* Everything checks out, this face is supported. */
4776 #endif /* HAVE_WINDOW_SYSTEM */
4778 /* Return non-zero if all the face attributes in ATTRS are supported
4781 The definition of `supported' is somewhat heuristic, but basically means
4782 that a face containing all the attributes in ATTRS, when merged
4783 with the default face for display, can be represented in a way that's
4785 \(1) different in appearance than the default face, and
4786 \(2) `close in spirit' to what the attributes specify, if not exact.
4788 Point (2) implies that a `:weight black' attribute will be satisfied
4789 by any terminal that can display bold, and a `:foreground "yellow"' as
4790 long as the terminal can display a yellowish color, but `:slant italic'
4791 will _not_ be satisfied by the tty display code's automatic
4792 substitution of a `dim' face for italic. */
4795 tty_supports_face_attributes_p (struct frame
*f
,
4796 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4797 struct face
*def_face
)
4800 Lisp_Object val
, fg
, bg
;
4801 XColor fg_tty_color
, fg_std_color
;
4802 XColor bg_tty_color
, bg_std_color
;
4803 unsigned test_caps
= 0;
4804 Lisp_Object
*def_attrs
= def_face
->lface
;
4806 /* First check some easy-to-check stuff; ttys support none of the
4807 following attributes, so we can just return false if any are requested
4808 (even if `nominal' values are specified, we should still return false,
4809 as that will be the same value that the default face uses). We
4810 consider :slant unsupportable on ttys, even though the face code
4811 actually `fakes' them using a dim attribute if possible. This is
4812 because the faked result is too different from what the face
4814 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4815 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4816 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4817 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4818 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4819 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4820 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4821 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4824 /* Test for terminal `capabilities' (non-color character attributes). */
4826 /* font weight (bold/dim) */
4827 val
= attrs
[LFACE_WEIGHT_INDEX
];
4828 if (!UNSPECIFIEDP (val
)
4829 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4831 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4835 if (def_weight
> 100)
4836 return 0; /* same as default */
4837 test_caps
= TTY_CAP_BOLD
;
4839 else if (weight
< 100)
4841 if (def_weight
< 100)
4842 return 0; /* same as default */
4843 test_caps
= TTY_CAP_DIM
;
4845 else if (def_weight
== 100)
4846 return 0; /* same as default */
4850 val
= attrs
[LFACE_SLANT_INDEX
];
4851 if (!UNSPECIFIEDP (val
)
4852 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4854 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4855 if (slant
== 100 || slant
== def_slant
)
4856 return 0; /* same as default */
4858 test_caps
|= TTY_CAP_ITALIC
;
4862 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4863 if (!UNSPECIFIEDP (val
))
4866 return 0; /* ttys can't use colored underlines */
4867 else if (EQ (CAR_SAFE (val
), QCstyle
) && EQ (CAR_SAFE (CDR_SAFE (val
)), Qwave
))
4868 return 0; /* ttys can't use wave underlines */
4869 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4870 return 0; /* same as default */
4872 test_caps
|= TTY_CAP_UNDERLINE
;
4876 val
= attrs
[LFACE_INVERSE_INDEX
];
4877 if (!UNSPECIFIEDP (val
))
4879 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4880 return 0; /* same as default */
4882 test_caps
|= TTY_CAP_INVERSE
;
4886 /* Color testing. */
4888 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4889 we use them when calling `tty_capable_p' below, even if the face
4890 specifies no colors. */
4891 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4892 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4894 /* Check if foreground color is close enough. */
4895 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4898 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4900 if (face_attr_equal_p (fg
, def_fg
))
4901 return 0; /* same as default */
4902 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4903 return 0; /* not a valid color */
4904 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4905 > TTY_SAME_COLOR_THRESHOLD
)
4906 return 0; /* displayed color is too different */
4908 /* Make sure the color is really different than the default. */
4910 XColor def_fg_color
;
4911 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4912 && (color_distance (&fg_tty_color
, &def_fg_color
)
4913 <= TTY_SAME_COLOR_THRESHOLD
))
4918 /* Check if background color is close enough. */
4919 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4922 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4924 if (face_attr_equal_p (bg
, def_bg
))
4925 return 0; /* same as default */
4926 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4927 return 0; /* not a valid color */
4928 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4929 > TTY_SAME_COLOR_THRESHOLD
)
4930 return 0; /* displayed color is too different */
4932 /* Make sure the color is really different than the default. */
4934 XColor def_bg_color
;
4935 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4936 && (color_distance (&bg_tty_color
, &def_bg_color
)
4937 <= TTY_SAME_COLOR_THRESHOLD
))
4942 /* If both foreground and background are requested, see if the
4943 distance between them is OK. We just check to see if the distance
4944 between the tty's foreground and background is close enough to the
4945 distance between the standard foreground and background. */
4946 if (STRINGP (fg
) && STRINGP (bg
))
4949 = (color_distance (&fg_std_color
, &bg_std_color
)
4950 - color_distance (&fg_tty_color
, &bg_tty_color
));
4951 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
4952 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
4957 /* See if the capabilities we selected above are supported, with the
4959 if (test_caps
!= 0 &&
4960 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
4961 bg_tty_color
.pixel
))
4965 /* Hmmm, everything checks out, this terminal must support this face. */
4970 DEFUN ("display-supports-face-attributes-p",
4971 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
4973 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
4974 The optional argument DISPLAY can be a display name, a frame, or
4975 nil (meaning the selected frame's display).
4977 The definition of `supported' is somewhat heuristic, but basically means
4978 that a face containing all the attributes in ATTRIBUTES, when merged
4979 with the default face for display, can be represented in a way that's
4981 \(1) different in appearance than the default face, and
4982 \(2) `close in spirit' to what the attributes specify, if not exact.
4984 Point (2) implies that a `:weight black' attribute will be satisfied by
4985 any display that can display bold, and a `:foreground \"yellow\"' as long
4986 as it can display a yellowish color, but `:slant italic' will _not_ be
4987 satisfied by the tty display code's automatic substitution of a `dim'
4988 face for italic. */)
4989 (Lisp_Object attributes
, Lisp_Object display
)
4991 int supports
= 0, i
;
4994 struct face
*def_face
;
4995 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4997 if (noninteractive
|| !initialized
)
4998 /* We may not be able to access low-level face information in batch
4999 mode, or before being dumped, and this function is not going to
5000 be very useful in those cases anyway, so just give up. */
5004 frame
= selected_frame
;
5005 else if (FRAMEP (display
))
5009 /* Find any frame on DISPLAY. */
5013 FOR_EACH_FRAME (tail
, frame
)
5014 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5015 XFRAME (frame
)->param_alist
)),
5020 CHECK_LIVE_FRAME (frame
);
5023 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5024 attrs
[i
] = Qunspecified
;
5025 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5027 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5028 if (def_face
== NULL
)
5030 if (! realize_basic_faces (f
))
5031 error ("Cannot realize default face");
5032 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5033 if (def_face
== NULL
)
5034 emacs_abort (); /* realize_basic_faces must have set it up */
5037 /* Dispatch to the appropriate handler. */
5038 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5039 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5040 #ifdef HAVE_WINDOW_SYSTEM
5042 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5045 return supports
? Qt
: Qnil
;
5049 /***********************************************************************
5051 ***********************************************************************/
5053 DEFUN ("internal-set-font-selection-order",
5054 Finternal_set_font_selection_order
,
5055 Sinternal_set_font_selection_order
, 1, 1, 0,
5056 doc
: /* Set font selection order for face font selection to ORDER.
5057 ORDER must be a list of length 4 containing the symbols `:width',
5058 `:height', `:weight', and `:slant'. Face attributes appearing
5059 first in ORDER are matched first, e.g. if `:height' appears before
5060 `:weight' in ORDER, font selection first tries to find a font with
5061 a suitable height, and then tries to match the font weight.
5067 int indices
[DIM (font_sort_order
)];
5070 memset (indices
, 0, sizeof indices
);
5074 CONSP (list
) && i
< DIM (indices
);
5075 list
= XCDR (list
), ++i
)
5077 Lisp_Object attr
= XCAR (list
);
5080 if (EQ (attr
, QCwidth
))
5082 else if (EQ (attr
, QCheight
))
5083 xlfd
= XLFD_POINT_SIZE
;
5084 else if (EQ (attr
, QCweight
))
5086 else if (EQ (attr
, QCslant
))
5091 if (indices
[i
] != 0)
5096 if (!NILP (list
) || i
!= DIM (indices
))
5097 signal_error ("Invalid font sort order", order
);
5098 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5099 if (indices
[i
] == 0)
5100 signal_error ("Invalid font sort order", order
);
5102 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5104 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5105 free_all_realized_faces (Qnil
);
5108 font_update_sort_order (font_sort_order
);
5114 DEFUN ("internal-set-alternative-font-family-alist",
5115 Finternal_set_alternative_font_family_alist
,
5116 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5117 doc
: /* Define alternative font families to try in face font selection.
5118 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5119 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5120 be found. Value is ALIST. */)
5123 Lisp_Object entry
, tail
, tail2
;
5126 alist
= Fcopy_sequence (alist
);
5127 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5129 entry
= XCAR (tail
);
5131 entry
= Fcopy_sequence (entry
);
5132 XSETCAR (tail
, entry
);
5133 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5134 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5137 Vface_alternative_font_family_alist
= alist
;
5138 free_all_realized_faces (Qnil
);
5143 DEFUN ("internal-set-alternative-font-registry-alist",
5144 Finternal_set_alternative_font_registry_alist
,
5145 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5146 doc
: /* Define alternative font registries to try in face font selection.
5147 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5148 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5149 be found. Value is ALIST. */)
5152 Lisp_Object entry
, tail
, tail2
;
5155 alist
= Fcopy_sequence (alist
);
5156 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5158 entry
= XCAR (tail
);
5160 entry
= Fcopy_sequence (entry
);
5161 XSETCAR (tail
, entry
);
5162 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5163 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5165 Vface_alternative_font_registry_alist
= alist
;
5166 free_all_realized_faces (Qnil
);
5171 #ifdef HAVE_WINDOW_SYSTEM
5173 /* Return the fontset id of the base fontset name or alias name given
5174 by the fontset attribute of ATTRS. Value is -1 if the fontset
5175 attribute of ATTRS doesn't name a fontset. */
5178 face_fontset (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5182 name
= attrs
[LFACE_FONTSET_INDEX
];
5183 if (!STRINGP (name
))
5185 return fs_query_fontset (name
, 0);
5188 #endif /* HAVE_WINDOW_SYSTEM */
5192 /***********************************************************************
5194 ***********************************************************************/
5196 /* Realize basic faces on frame F. Value is zero if frame parameters
5197 of F don't contain enough information needed to realize the default
5201 realize_basic_faces (struct frame
*f
)
5204 ptrdiff_t count
= SPECPDL_INDEX ();
5206 /* Block input here so that we won't be surprised by an X expose
5207 event, for instance, without having the faces set up. */
5209 specbind (Qscalable_fonts_allowed
, Qt
);
5211 if (realize_default_face (f
))
5213 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5214 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5215 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5216 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5217 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5218 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5219 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5220 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5221 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5222 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5223 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5225 /* Reflect changes in the `menu' face in menu bars. */
5226 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5228 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5229 #ifdef USE_X_TOOLKIT
5230 if (FRAME_WINDOW_P (f
))
5231 x_update_menu_appearance (f
);
5238 unbind_to (count
, Qnil
);
5244 /* Realize the default face on frame F. If the face is not fully
5245 specified, make it fully-specified. Attributes of the default face
5246 that are not explicitly specified are taken from frame parameters. */
5249 realize_default_face (struct frame
*f
)
5251 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5253 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5256 /* If the `default' face is not yet known, create it. */
5257 lface
= lface_from_face_name (f
, Qdefault
, 0);
5261 XSETFRAME (frame
, f
);
5262 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5265 #ifdef HAVE_WINDOW_SYSTEM
5266 if (FRAME_WINDOW_P (f
))
5268 Lisp_Object font_object
;
5270 XSETFONT (font_object
, FRAME_FONT (f
));
5271 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5272 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5273 f
->default_face_done_p
= 1;
5275 #endif /* HAVE_WINDOW_SYSTEM */
5277 if (!FRAME_WINDOW_P (f
))
5279 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5280 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5281 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5282 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5283 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5284 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5285 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5286 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5287 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5288 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5291 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5292 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5294 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5295 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5297 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5298 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5300 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5301 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5303 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5304 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5306 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5308 /* This function is called so early that colors are not yet
5309 set in the frame parameter list. */
5310 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5312 if (CONSP (color
) && STRINGP (XCDR (color
)))
5313 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5314 else if (FRAME_WINDOW_P (f
))
5316 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5317 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5322 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5324 /* This function is called so early that colors are not yet
5325 set in the frame parameter list. */
5326 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5327 if (CONSP (color
) && STRINGP (XCDR (color
)))
5328 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5329 else if (FRAME_WINDOW_P (f
))
5331 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5332 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5337 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5338 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5340 /* Realize the face; it must be fully-specified now. */
5341 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5342 check_lface (lface
);
5343 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5344 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5346 #ifdef HAVE_WINDOW_SYSTEM
5347 #ifdef HAVE_X_WINDOWS
5348 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5350 /* This can happen when making a frame on a display that does
5351 not support the default font. */
5355 /* Otherwise, the font specified for the frame was not
5356 acceptable as a font for the default face (perhaps because
5357 auto-scaled fonts are rejected), so we must adjust the frame
5359 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5361 #endif /* HAVE_X_WINDOWS */
5362 #endif /* HAVE_WINDOW_SYSTEM */
5367 /* Realize basic faces other than the default face in face cache C.
5368 SYMBOL is the face name, ID is the face id the realized face must
5369 have. The default face must have been realized already. */
5372 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5374 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5375 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5376 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5377 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5379 /* The default face must exist and be fully specified. */
5380 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5381 check_lface_attrs (attrs
);
5382 eassert (lface_fully_specified_p (attrs
));
5384 /* If SYMBOL isn't know as a face, create it. */
5388 XSETFRAME (frame
, f
);
5389 lface
= Finternal_make_lisp_face (symbol
, frame
);
5392 /* Merge SYMBOL's face with the default face. */
5393 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5394 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5396 /* Realize the face. */
5397 realize_face (c
, attrs
, id
);
5401 /* Realize the fully-specified face with attributes ATTRS in face
5402 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5403 non-negative, it is an ID of face to remove before caching the new
5404 face. Value is a pointer to the newly created realized face. */
5406 static struct face
*
5407 realize_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
5412 /* LFACE must be fully specified. */
5413 eassert (cache
!= NULL
);
5414 check_lface_attrs (attrs
);
5416 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5418 /* Remove the former face. */
5419 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5420 uncache_face (cache
, former_face
);
5421 free_realized_face (cache
->f
, former_face
);
5422 SET_FRAME_GARBAGED (cache
->f
);
5425 if (FRAME_WINDOW_P (cache
->f
))
5426 face
= realize_x_face (cache
, attrs
);
5427 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5428 face
= realize_tty_face (cache
, attrs
);
5429 else if (FRAME_INITIAL_P (cache
->f
))
5431 /* Create a dummy face. */
5432 face
= make_realized_face (attrs
);
5437 /* Insert the new face. */
5438 cache_face (cache
, face
, lface_hash (attrs
));
5443 #ifdef HAVE_WINDOW_SYSTEM
5444 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5445 same attributes as BASE_FACE except for the font on frame F.
5446 FONT-OBJECT may be nil, in which case, realized a face of
5449 static struct face
*
5450 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5451 struct face
*base_face
)
5453 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5456 face
= xmalloc (sizeof *face
);
5461 = (! NILP (font_object
)
5462 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5463 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5465 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5466 face
->colors_copied_bitwise_p
= 1;
5467 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5470 cache_face (cache
, face
, face
->hash
);
5474 #endif /* HAVE_WINDOW_SYSTEM */
5477 /* Realize the fully-specified face with attributes ATTRS in face
5478 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5479 the new face doesn't share font with the default face, a fontname
5480 is allocated from the heap and set in `font_name' of the new face,
5481 but it is not yet loaded here. Value is a pointer to the newly
5482 created realized face. */
5484 static struct face
*
5485 realize_x_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5487 struct face
*face
= NULL
;
5488 #ifdef HAVE_WINDOW_SYSTEM
5489 struct face
*default_face
;
5491 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5493 eassert (FRAME_WINDOW_P (cache
->f
));
5495 /* Allocate a new realized face. */
5496 face
= make_realized_face (attrs
);
5497 face
->ascii_face
= face
;
5501 /* Determine the font to use. Most of the time, the font will be
5502 the same as the font of the default face, so try that first. */
5503 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5505 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5507 face
->font
= default_face
->font
;
5509 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5513 /* If the face attribute ATTRS specifies a fontset, use it as
5514 the base of a new realized fontset. Otherwise, use the same
5515 base fontset as of the default face. The base determines
5516 registry and encoding of a font. It may also determine
5517 foundry and family. The other fields of font name pattern
5518 are constructed from ATTRS. */
5519 int fontset
= face_fontset (attrs
);
5521 /* If we are realizing the default face, ATTRS should specify a
5522 fontset. In other words, if FONTSET is -1, we are not
5523 realizing the default face, thus the default face should have
5524 already been realized. */
5528 fontset
= default_face
->fontset
;
5532 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5533 attrs
[LFACE_FONT_INDEX
]
5534 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5535 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5537 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5538 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5548 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5549 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5550 face
->overstrike
= 1;
5552 /* Load colors, and set remaining attributes. */
5554 load_face_colors (f
, face
, attrs
);
5557 box
= attrs
[LFACE_BOX_INDEX
];
5560 /* A simple box of line width 1 drawn in color given by
5562 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5564 face
->box
= FACE_SIMPLE_BOX
;
5565 face
->box_line_width
= 1;
5567 else if (INTEGERP (box
))
5569 /* Simple box of specified line width in foreground color of the
5571 eassert (XINT (box
) != 0);
5572 face
->box
= FACE_SIMPLE_BOX
;
5573 face
->box_line_width
= XINT (box
);
5574 face
->box_color
= face
->foreground
;
5575 face
->box_color_defaulted_p
= 1;
5577 else if (CONSP (box
))
5579 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5580 being one of `raised' or `sunken'. */
5581 face
->box
= FACE_SIMPLE_BOX
;
5582 face
->box_color
= face
->foreground
;
5583 face
->box_color_defaulted_p
= 1;
5584 face
->box_line_width
= 1;
5588 Lisp_Object keyword
, value
;
5590 keyword
= XCAR (box
);
5598 if (EQ (keyword
, QCline_width
))
5600 if (INTEGERP (value
) && XINT (value
) != 0)
5601 face
->box_line_width
= XINT (value
);
5603 else if (EQ (keyword
, QCcolor
))
5605 if (STRINGP (value
))
5607 face
->box_color
= load_color (f
, face
, value
,
5609 face
->use_box_color_for_shadows_p
= 1;
5612 else if (EQ (keyword
, QCstyle
))
5614 if (EQ (value
, Qreleased_button
))
5615 face
->box
= FACE_RAISED_BOX
;
5616 else if (EQ (value
, Qpressed_button
))
5617 face
->box
= FACE_SUNKEN_BOX
;
5622 /* Text underline, overline, strike-through. */
5624 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5625 if (EQ (underline
, Qt
))
5627 /* Use default color (same as foreground color). */
5628 face
->underline_p
= 1;
5629 face
->underline_type
= FACE_UNDER_LINE
;
5630 face
->underline_defaulted_p
= 1;
5631 face
->underline_color
= 0;
5633 else if (STRINGP (underline
))
5635 /* Use specified color. */
5636 face
->underline_p
= 1;
5637 face
->underline_type
= FACE_UNDER_LINE
;
5638 face
->underline_defaulted_p
= 0;
5639 face
->underline_color
5640 = load_color (f
, face
, underline
,
5641 LFACE_UNDERLINE_INDEX
);
5643 else if (NILP (underline
))
5645 face
->underline_p
= 0;
5646 face
->underline_defaulted_p
= 0;
5647 face
->underline_color
= 0;
5649 else if (CONSP (underline
))
5651 /* `(:color COLOR :style STYLE)'.
5652 STYLE being one of `line' or `wave'. */
5653 face
->underline_p
= 1;
5654 face
->underline_color
= 0;
5655 face
->underline_defaulted_p
= 1;
5656 face
->underline_type
= FACE_UNDER_LINE
;
5658 /* FIXME? This is also not robust about checking the precise form.
5659 See comments in Finternal_set_lisp_face_attribute. */
5660 while (CONSP (underline
))
5662 Lisp_Object keyword
, value
;
5664 keyword
= XCAR (underline
);
5665 underline
= XCDR (underline
);
5667 if (!CONSP (underline
))
5669 value
= XCAR (underline
);
5670 underline
= XCDR (underline
);
5672 if (EQ (keyword
, QCcolor
))
5674 if (EQ (value
, Qforeground_color
))
5676 face
->underline_defaulted_p
= 1;
5677 face
->underline_color
= 0;
5679 else if (STRINGP (value
))
5681 face
->underline_defaulted_p
= 0;
5682 face
->underline_color
= load_color (f
, face
, value
,
5683 LFACE_UNDERLINE_INDEX
);
5686 else if (EQ (keyword
, QCstyle
))
5688 if (EQ (value
, Qline
))
5689 face
->underline_type
= FACE_UNDER_LINE
;
5690 else if (EQ (value
, Qwave
))
5691 face
->underline_type
= FACE_UNDER_WAVE
;
5696 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5697 if (STRINGP (overline
))
5699 face
->overline_color
5700 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5701 LFACE_OVERLINE_INDEX
);
5702 face
->overline_p
= 1;
5704 else if (EQ (overline
, Qt
))
5706 face
->overline_color
= face
->foreground
;
5707 face
->overline_color_defaulted_p
= 1;
5708 face
->overline_p
= 1;
5711 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5712 if (STRINGP (strike_through
))
5714 face
->strike_through_color
5715 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5716 LFACE_STRIKE_THROUGH_INDEX
);
5717 face
->strike_through_p
= 1;
5719 else if (EQ (strike_through
, Qt
))
5721 face
->strike_through_color
= face
->foreground
;
5722 face
->strike_through_color_defaulted_p
= 1;
5723 face
->strike_through_p
= 1;
5726 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5727 if (!NILP (stipple
))
5728 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5729 #endif /* HAVE_WINDOW_SYSTEM */
5735 /* Map a specified color of face FACE on frame F to a tty color index.
5736 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5737 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5738 default foreground/background colors. */
5741 map_tty_color (struct frame
*f
, struct face
*face
,
5742 enum lface_attribute_index idx
, int *defaulted
)
5744 Lisp_Object frame
, color
, def
;
5745 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5746 unsigned long default_pixel
=
5747 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5748 unsigned long pixel
= default_pixel
;
5750 unsigned long default_other_pixel
=
5751 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5754 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5756 XSETFRAME (frame
, f
);
5757 color
= face
->lface
[idx
];
5761 && CONSP (Vtty_defined_color_alist
)
5762 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5765 /* Associations in tty-defined-color-alist are of the form
5766 (NAME INDEX R G B). We need the INDEX part. */
5767 pixel
= XINT (XCAR (XCDR (def
)));
5770 if (pixel
== default_pixel
&& STRINGP (color
))
5772 pixel
= load_color (f
, face
, color
, idx
);
5775 /* If the foreground of the default face is the default color,
5776 use the foreground color defined by the frame. */
5777 if (FRAME_MSDOS_P (f
))
5779 if (pixel
== default_pixel
5780 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5783 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5785 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5786 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5789 else if (pixel
== default_other_pixel
)
5792 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5794 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5795 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5803 face
->foreground
= pixel
;
5805 face
->background
= pixel
;
5809 /* Realize the fully-specified face with attributes ATTRS in face
5810 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5811 Value is a pointer to the newly created realized face. */
5813 static struct face
*
5814 realize_tty_face (struct face_cache
*cache
,
5815 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5819 int face_colors_defaulted
= 0;
5820 struct frame
*f
= cache
->f
;
5822 /* Frame must be a termcap frame. */
5823 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5825 /* Allocate a new realized face. */
5826 face
= make_realized_face (attrs
);
5828 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5831 /* Map face attributes to TTY appearances. */
5832 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5833 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5835 face
->tty_bold_p
= 1;
5837 face
->tty_italic_p
= 1;
5838 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5839 face
->tty_underline_p
= 1;
5840 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5841 face
->tty_reverse_p
= 1;
5843 /* Map color names to color indices. */
5844 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5845 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5847 /* Swap colors if face is inverse-video. If the colors are taken
5848 from the frame colors, they are already inverted, since the
5849 frame-creation function calls x-handle-reverse-video. */
5850 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5852 unsigned long tem
= face
->foreground
;
5853 face
->foreground
= face
->background
;
5854 face
->background
= tem
;
5857 if (tty_suppress_bold_inverse_default_colors_p
5859 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5860 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5861 face
->tty_bold_p
= 0;
5867 DEFUN ("tty-suppress-bold-inverse-default-colors",
5868 Ftty_suppress_bold_inverse_default_colors
,
5869 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5870 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5871 SUPPRESS non-nil means suppress it.
5872 This affects bold faces on TTYs whose foreground is the default background
5873 color of the display and whose background is the default foreground color.
5874 For such faces, the bold face attribute is ignored if this variable
5876 (Lisp_Object suppress
)
5878 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5879 ++face_change_count
;
5885 /***********************************************************************
5887 ***********************************************************************/
5889 /* Return the ID of the face to use to display character CH with face
5890 property PROP on frame F in current_buffer. */
5893 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5897 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5902 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5903 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5907 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5908 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5909 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5910 merge_face_ref (f
, prop
, attrs
, 1, 0);
5911 face_id
= lookup_face (f
, attrs
);
5917 /* Return the face ID associated with buffer position POS for
5918 displaying ASCII characters. Return in *ENDPTR the position at
5919 which a different face is needed, as far as text properties and
5920 overlays are concerned. W is a window displaying current_buffer.
5922 REGION_BEG, REGION_END delimit the region, so it can be
5925 LIMIT is a position not to scan beyond. That is to limit the time
5926 this function can take.
5928 If MOUSE is non-zero, use the character's mouse-face, not its face.
5930 BASE_FACE_ID, if non-negative, specifies a base face id to use
5931 instead of DEFAULT_FACE_ID.
5933 The face returned is suitable for displaying ASCII characters. */
5936 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
5937 ptrdiff_t region_beg
, ptrdiff_t region_end
,
5938 ptrdiff_t *endptr
, ptrdiff_t limit
,
5939 int mouse
, int base_face_id
)
5941 struct frame
*f
= XFRAME (w
->frame
);
5942 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5943 Lisp_Object prop
, position
;
5944 ptrdiff_t i
, noverlays
;
5945 Lisp_Object
*overlay_vec
;
5947 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5948 Lisp_Object limit1
, end
;
5949 struct face
*default_face
;
5951 /* W must display the current buffer. We could write this function
5952 to use the frame and buffer of W, but right now it doesn't. */
5953 /* eassert (XBUFFER (w->contents) == current_buffer); */
5955 XSETFASTINT (position
, pos
);
5958 if (pos
< region_beg
&& region_beg
< endpos
)
5959 endpos
= region_beg
;
5961 /* Get the `face' or `mouse_face' text property at POS, and
5962 determine the next position at which the property changes. */
5963 prop
= Fget_text_property (position
, propname
, w
->contents
);
5964 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5965 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
5967 endpos
= XINT (end
);
5969 /* Look at properties from overlays. */
5971 ptrdiff_t next_overlay
;
5973 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5974 if (next_overlay
< endpos
)
5975 endpos
= next_overlay
;
5983 if (base_face_id
>= 0)
5984 face_id
= base_face_id
;
5985 else if (NILP (Vface_remapping_alist
))
5986 face_id
= DEFAULT_FACE_ID
;
5988 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
5990 default_face
= FACE_FROM_ID (f
, face_id
);
5993 /* Optimize common cases where we can use the default face. */
5996 && !(pos
>= region_beg
&& pos
< region_end
))
5997 return default_face
->id
;
5999 /* Begin with attributes from the default face. */
6000 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6002 /* Merge in attributes specified via text properties. */
6004 merge_face_ref (f
, prop
, attrs
, 1, 0);
6006 /* Now merge the overlay data. */
6007 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6008 for (i
= 0; i
< noverlays
; i
++)
6013 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6015 merge_face_ref (f
, prop
, attrs
, 1, 0);
6017 oend
= OVERLAY_END (overlay_vec
[i
]);
6018 oendpos
= OVERLAY_POSITION (oend
);
6019 if (oendpos
< endpos
)
6023 /* If in the region, merge in the region face. */
6024 if (pos
>= region_beg
&& pos
< region_end
)
6026 merge_named_face (f
, Qregion
, attrs
, 0);
6028 if (region_end
< endpos
)
6029 endpos
= region_end
;
6034 /* Look up a realized face with the given face attributes,
6035 or realize a new one for ASCII characters. */
6036 return lookup_face (f
, attrs
);
6039 /* Return the face ID at buffer position POS for displaying ASCII
6040 characters associated with overlay strings for overlay OVERLAY.
6042 Like face_at_buffer_position except for OVERLAY. Currently it
6043 simply disregards the `face' properties of all overlays. */
6046 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6047 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6048 ptrdiff_t *endptr
, ptrdiff_t limit
,
6049 int mouse
, Lisp_Object overlay
)
6051 struct frame
*f
= XFRAME (w
->frame
);
6052 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6053 Lisp_Object prop
, position
;
6055 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6056 Lisp_Object limit1
, end
;
6057 struct face
*default_face
;
6059 /* W must display the current buffer. We could write this function
6060 to use the frame and buffer of W, but right now it doesn't. */
6061 /* eassert (XBUFFER (w->contents) == current_buffer); */
6063 XSETFASTINT (position
, pos
);
6066 if (pos
< region_beg
&& region_beg
< endpos
)
6067 endpos
= region_beg
;
6069 /* Get the `face' or `mouse_face' text property at POS, and
6070 determine the next position at which the property changes. */
6071 prop
= Fget_text_property (position
, propname
, w
->contents
);
6072 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6073 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
6075 endpos
= XINT (end
);
6079 /* Optimize common case where we can use the default face. */
6081 && !(pos
>= region_beg
&& pos
< region_end
)
6082 && NILP (Vface_remapping_alist
))
6083 return DEFAULT_FACE_ID
;
6085 /* Begin with attributes from the default face. */
6086 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6087 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6089 /* Merge in attributes specified via text properties. */
6091 merge_face_ref (f
, prop
, attrs
, 1, 0);
6093 /* If in the region, merge in the region face. */
6094 if (pos
>= region_beg
&& pos
< region_end
)
6096 merge_named_face (f
, Qregion
, attrs
, 0);
6098 if (region_end
< endpos
)
6099 endpos
= region_end
;
6104 /* Look up a realized face with the given face attributes,
6105 or realize a new one for ASCII characters. */
6106 return lookup_face (f
, attrs
);
6110 /* Compute the face at character position POS in Lisp string STRING on
6111 window W, for ASCII characters.
6113 If STRING is an overlay string, it comes from position BUFPOS in
6114 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6115 not an overlay string. W must display the current buffer.
6116 REGION_BEG and REGION_END give the start and end positions of the
6117 region; both are -1 if no region is visible.
6119 BASE_FACE_ID is the id of a face to merge with. For strings coming
6120 from overlays or the `display' property it is the face at BUFPOS.
6122 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6124 Set *ENDPTR to the next position where to check for faces in
6125 STRING; -1 if the face is constant from POS to the end of the
6128 Value is the id of the face to use. The face returned is suitable
6129 for displaying ASCII characters. */
6132 face_at_string_position (struct window
*w
, Lisp_Object string
,
6133 ptrdiff_t pos
, ptrdiff_t bufpos
,
6134 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6135 ptrdiff_t *endptr
, enum face_id base_face_id
,
6138 Lisp_Object prop
, position
, end
, limit
;
6139 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6140 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6141 struct face
*base_face
;
6142 bool multibyte_p
= STRING_MULTIBYTE (string
);
6143 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6145 /* Get the value of the face property at the current position within
6146 STRING. Value is nil if there is no face property. */
6147 XSETFASTINT (position
, pos
);
6148 prop
= Fget_text_property (position
, prop_name
, string
);
6150 /* Get the next position at which to check for faces. Value of end
6151 is nil if face is constant all the way to the end of the string.
6152 Otherwise it is a string position where to check faces next.
6153 Limit is the maximum position up to which to check for property
6154 changes in Fnext_single_property_change. Strings are usually
6155 short, so set the limit to the end of the string. */
6156 XSETFASTINT (limit
, SCHARS (string
));
6157 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6159 *endptr
= XFASTINT (end
);
6163 base_face
= FACE_FROM_ID (f
, base_face_id
);
6164 eassert (base_face
);
6166 /* Optimize the default case that there is no face property and we
6167 are not in the region. */
6169 && (base_face_id
!= DEFAULT_FACE_ID
6170 /* BUFPOS <= 0 means STRING is not an overlay string, so
6171 that the region doesn't have to be taken into account. */
6173 || bufpos
< region_beg
6174 || bufpos
>= region_end
)
6176 /* We can't realize faces for different charsets differently
6177 if we don't have fonts, so we can stop here if not working
6178 on a window-system frame. */
6179 || !FRAME_WINDOW_P (f
)
6180 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6181 return base_face
->id
;
6183 /* Begin with attributes from the base face. */
6184 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6186 /* Merge in attributes specified via text properties. */
6188 merge_face_ref (f
, prop
, attrs
, 1, 0);
6190 /* If in the region, merge in the region face. */
6192 && bufpos
>= region_beg
6193 && bufpos
< region_end
)
6194 merge_named_face (f
, Qregion
, attrs
, 0);
6196 /* Look up a realized face with the given face attributes,
6197 or realize a new one for ASCII characters. */
6198 return lookup_face (f
, attrs
);
6202 /* Merge a face into a realized face.
6204 F is frame where faces are (to be) realized.
6206 FACE_NAME is named face to merge.
6208 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6210 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6212 BASE_FACE_ID is realized face to merge into.
6218 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6221 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6222 struct face
*base_face
;
6224 base_face
= FACE_FROM_ID (f
, base_face_id
);
6226 return base_face_id
;
6228 if (EQ (face_name
, Qt
))
6230 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6231 return base_face_id
;
6232 face_name
= lface_id_to_name
[face_id
];
6233 /* When called during make-frame, lookup_derived_face may fail
6234 if the faces are uninitialized. Don't signal an error. */
6235 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6236 return (face_id
>= 0 ? face_id
: base_face_id
);
6239 /* Begin with attributes from the base face. */
6240 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6242 if (!NILP (face_name
))
6244 if (!merge_named_face (f
, face_name
, attrs
, 0))
6245 return base_face_id
;
6251 return base_face_id
;
6252 face
= FACE_FROM_ID (f
, face_id
);
6254 return base_face_id
;
6255 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6258 /* Look up a realized face with the given face attributes,
6259 or realize a new one for ASCII characters. */
6260 return lookup_face (f
, attrs
);
6265 #ifndef HAVE_X_WINDOWS
6266 DEFUN ("x-load-color-file", Fx_load_color_file
,
6267 Sx_load_color_file
, 1, 1, 0,
6268 doc
: /* Create an alist of color entries from an external file.
6270 The file should define one named RGB color per line like so:
6272 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6273 (Lisp_Object filename
)
6276 Lisp_Object cmap
= Qnil
;
6277 Lisp_Object abspath
;
6279 CHECK_STRING (filename
);
6280 abspath
= Fexpand_file_name (filename
, Qnil
);
6283 fp
= emacs_fopen (SSDATA (abspath
), "rt");
6287 int red
, green
, blue
;
6290 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6291 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6294 int color
= RGB (red
, green
, blue
);
6296 int color
= (red
<< 16) | (green
<< 8) | blue
;
6298 char *name
= buf
+ num
;
6299 ptrdiff_t len
= strlen (name
);
6300 len
-= 0 < len
&& name
[len
- 1] == '\n';
6301 cmap
= Fcons (Fcons (make_string (name
, len
), make_number (color
)),
6313 /***********************************************************************
6315 ***********************************************************************/
6319 /* Print the contents of the realized face FACE to stderr. */
6322 dump_realized_face (struct face
*face
)
6324 fprintf (stderr
, "ID: %d\n", face
->id
);
6325 #ifdef HAVE_X_WINDOWS
6326 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6328 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6330 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6331 fprintf (stderr
, "background: 0x%lx (%s)\n",
6333 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6335 fprintf (stderr
, "font_name: %s (%s)\n",
6336 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6337 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6338 #ifdef HAVE_X_WINDOWS
6339 fprintf (stderr
, "font = %p\n", face
->font
);
6341 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6342 fprintf (stderr
, "underline: %d (%s)\n",
6344 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6345 fprintf (stderr
, "hash: %d\n", face
->hash
);
6349 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6356 fprintf (stderr
, "font selection order: ");
6357 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6358 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6359 fprintf (stderr
, "\n");
6361 fprintf (stderr
, "alternative fonts: ");
6362 debug_print (Vface_alternative_font_family_alist
);
6363 fprintf (stderr
, "\n");
6365 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6366 Fdump_face (make_number (i
));
6372 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6374 error ("Not a valid face");
6375 dump_realized_face (face
);
6382 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6383 0, 0, 0, doc
: /* */)
6386 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6387 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6388 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6392 #endif /* GLYPH_DEBUG */
6396 /***********************************************************************
6398 ***********************************************************************/
6401 syms_of_xfaces (void)
6403 DEFSYM (Qface
, "face");
6404 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6405 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6406 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6408 /* Lisp face attribute keywords. */
6409 DEFSYM (QCfamily
, ":family");
6410 DEFSYM (QCheight
, ":height");
6411 DEFSYM (QCweight
, ":weight");
6412 DEFSYM (QCslant
, ":slant");
6413 DEFSYM (QCunderline
, ":underline");
6414 DEFSYM (QCinverse_video
, ":inverse-video");
6415 DEFSYM (QCreverse_video
, ":reverse-video");
6416 DEFSYM (QCforeground
, ":foreground");
6417 DEFSYM (QCbackground
, ":background");
6418 DEFSYM (QCstipple
, ":stipple");
6419 DEFSYM (QCwidth
, ":width");
6420 DEFSYM (QCfont
, ":font");
6421 DEFSYM (QCfontset
, ":fontset");
6422 DEFSYM (QCbold
, ":bold");
6423 DEFSYM (QCitalic
, ":italic");
6424 DEFSYM (QCoverline
, ":overline");
6425 DEFSYM (QCstrike_through
, ":strike-through");
6426 DEFSYM (QCbox
, ":box");
6427 DEFSYM (QCinherit
, ":inherit");
6429 /* Symbols used for Lisp face attribute values. */
6430 DEFSYM (QCcolor
, ":color");
6431 DEFSYM (QCline_width
, ":line-width");
6432 DEFSYM (QCstyle
, ":style");
6433 DEFSYM (Qline
, "line");
6434 DEFSYM (Qwave
, "wave");
6435 DEFSYM (Qreleased_button
, "released-button");
6436 DEFSYM (Qpressed_button
, "pressed-button");
6437 DEFSYM (Qnormal
, "normal");
6438 DEFSYM (Qextra_light
, "extra-light");
6439 DEFSYM (Qlight
, "light");
6440 DEFSYM (Qsemi_light
, "semi-light");
6441 DEFSYM (Qsemi_bold
, "semi-bold");
6442 DEFSYM (Qbold
, "bold");
6443 DEFSYM (Qextra_bold
, "extra-bold");
6444 DEFSYM (Qultra_bold
, "ultra-bold");
6445 DEFSYM (Qoblique
, "oblique");
6446 DEFSYM (Qitalic
, "italic");
6447 DEFSYM (Qbackground_color
, "background-color");
6448 DEFSYM (Qforeground_color
, "foreground-color");
6449 DEFSYM (Qunspecified
, "unspecified");
6450 DEFSYM (QCignore_defface
, ":ignore-defface");
6452 DEFSYM (Qface_alias
, "face-alias");
6453 DEFSYM (Qdefault
, "default");
6454 DEFSYM (Qtool_bar
, "tool-bar");
6455 DEFSYM (Qregion
, "region");
6456 DEFSYM (Qfringe
, "fringe");
6457 DEFSYM (Qheader_line
, "header-line");
6458 DEFSYM (Qscroll_bar
, "scroll-bar");
6459 DEFSYM (Qmenu
, "menu");
6460 DEFSYM (Qcursor
, "cursor");
6461 DEFSYM (Qborder
, "border");
6462 DEFSYM (Qmouse
, "mouse");
6463 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6464 DEFSYM (Qvertical_border
, "vertical-border");
6465 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6466 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6467 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6468 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6469 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6471 Vparam_value_alist
= list1 (Fcons (Qnil
, Qnil
));
6472 staticpro (&Vparam_value_alist
);
6473 Vface_alternative_font_family_alist
= Qnil
;
6474 staticpro (&Vface_alternative_font_family_alist
);
6475 Vface_alternative_font_registry_alist
= Qnil
;
6476 staticpro (&Vface_alternative_font_registry_alist
);
6478 defsubr (&Sinternal_make_lisp_face
);
6479 defsubr (&Sinternal_lisp_face_p
);
6480 defsubr (&Sinternal_set_lisp_face_attribute
);
6481 #ifdef HAVE_WINDOW_SYSTEM
6482 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6484 defsubr (&Scolor_gray_p
);
6485 defsubr (&Scolor_supported_p
);
6486 #ifndef HAVE_X_WINDOWS
6487 defsubr (&Sx_load_color_file
);
6489 defsubr (&Sface_attribute_relative_p
);
6490 defsubr (&Smerge_face_attribute
);
6491 defsubr (&Sinternal_get_lisp_face_attribute
);
6492 defsubr (&Sinternal_lisp_face_attribute_values
);
6493 defsubr (&Sinternal_lisp_face_equal_p
);
6494 defsubr (&Sinternal_lisp_face_empty_p
);
6495 defsubr (&Sinternal_copy_lisp_face
);
6496 defsubr (&Sinternal_merge_in_global_face
);
6497 defsubr (&Sface_font
);
6498 defsubr (&Sframe_face_alist
);
6499 defsubr (&Sdisplay_supports_face_attributes_p
);
6500 defsubr (&Scolor_distance
);
6501 defsubr (&Sinternal_set_font_selection_order
);
6502 defsubr (&Sinternal_set_alternative_font_family_alist
);
6503 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6504 defsubr (&Sface_attributes_as_vector
);
6506 defsubr (&Sdump_face
);
6507 defsubr (&Sshow_face_resources
);
6508 #endif /* GLYPH_DEBUG */
6509 defsubr (&Sclear_face_cache
);
6510 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6512 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6513 defsubr (&Sdump_colors
);
6516 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6517 doc
: /* List of global face definitions (for internal use only.) */);
6518 Vface_new_frame_defaults
= Qnil
;
6520 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6521 doc
: /* Default stipple pattern used on monochrome displays.
6522 This stipple pattern is used on monochrome displays
6523 instead of shades of gray for a face background color.
6524 See `set-face-stipple' for possible values for this variable. */);
6525 Vface_default_stipple
= build_pure_c_string ("gray3");
6527 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6528 doc
: /* An alist of defined terminal colors and their RGB values.
6529 See the docstring of `tty-color-alist' for the details. */);
6530 Vtty_defined_color_alist
= Qnil
;
6532 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6533 doc
: /* Allowed scalable fonts.
6534 A value of nil means don't allow any scalable fonts.
6535 A value of t means allow any scalable font.
6536 Otherwise, value must be a list of regular expressions. A font may be
6537 scaled if its name matches a regular expression in the list.
6538 Note that if value is nil, a scalable font might still be used, if no
6539 other font of the appropriate family and registry is available. */);
6540 Vscalable_fonts_allowed
= Qnil
;
6542 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6543 doc
: /* List of ignored fonts.
6544 Each element is a regular expression that matches names of fonts to
6546 Vface_ignored_fonts
= Qnil
;
6548 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6549 doc
: /* Alist of face remappings.
6550 Each element is of the form:
6552 (FACE . REPLACEMENT),
6554 which causes display of the face FACE to use REPLACEMENT instead.
6555 REPLACEMENT is a face specification, i.e. one of the following:
6558 (2) a property list of attribute/value pairs, or
6559 (3) a list in which each element has the form of (1) or (2).
6561 List values for REPLACEMENT are merged to form the final face
6562 specification, with earlier entries taking precedence, in the same as
6563 as in the `face' text property.
6565 Face-name remapping cycles are suppressed; recursive references use
6566 the underlying face instead of the remapped face. So a remapping of
6569 (FACE EXTRA-FACE... FACE)
6573 (FACE (FACE-ATTR VAL ...) FACE)
6575 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6576 existing definition of FACE. Note that this isn't necessary for the
6577 default face, since every face inherits from the default face.
6579 If this variable is made buffer-local, the face remapping takes effect
6580 only in that buffer. For instance, the mode my-mode could define a
6581 face `my-mode-default', and then in the mode setup function, do:
6583 (set (make-local-variable 'face-remapping-alist)
6584 '((default my-mode-default)))).
6586 Because Emacs normally only redraws screen areas when the underlying
6587 buffer contents change, you may need to call `redraw-display' after
6588 changing this variable for it to take effect. */);
6589 Vface_remapping_alist
= Qnil
;
6591 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6592 doc
: /* Alist of fonts vs the rescaling factors.
6593 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6594 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6595 RESCALE-RATIO is a floating point number to specify how much larger
6596 \(or smaller) font we should use. For instance, if a face requests
6597 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6598 Vface_font_rescale_alist
= Qnil
;
6600 #ifdef HAVE_WINDOW_SYSTEM
6601 defsubr (&Sbitmap_spec_p
);
6602 defsubr (&Sx_list_fonts
);
6603 defsubr (&Sinternal_face_x_get_resource
);
6604 defsubr (&Sx_family_fonts
);