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 x_display_info ns_display_info
240 #define GCGraphicsExposures 0
242 #endif /* HAVE_WINDOW_SYSTEM */
245 #include "dispextern.h"
246 #include "blockinput.h"
248 #include "intervals.h"
249 #include "termchar.h"
253 #ifdef HAVE_X_WINDOWS
255 /* Compensate for a bug in Xos.h on some systems, on which it requires
256 time.h. On some such systems, Xos.h tries to redefine struct
257 timeval and struct timezone if USG is #defined while it is
260 #ifdef XOS_NEEDS_TIME_H
266 #if defined USG || defined __TIMEVAL__ /* Don't warn about unused macros. */
268 #else /* not XOS_NEEDS_TIME_H */
270 #endif /* not XOS_NEEDS_TIME_H */
272 #endif /* HAVE_X_WINDOWS */
276 /* Number of pt per inch (from the TeXbook). */
278 #define PT_PER_INCH 72.27
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 /* Counter for calls to clear_face_cache. If this counter reaches
401 CLEAR_FONT_TABLE_COUNT, and a frame has more than
402 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
404 static int clear_font_table_count
;
405 #define CLEAR_FONT_TABLE_COUNT 100
406 #define CLEAR_FONT_TABLE_NFONTS 10
408 /* Non-zero means face attributes have been changed since the last
409 redisplay. Used in redisplay_internal. */
411 int face_change_count
;
413 /* Non-zero means don't display bold text if a face's foreground
414 and background colors are the inverse of the default colors of the
415 display. This is a kluge to suppress `bold black' foreground text
416 which is hard to read on an LCD monitor. */
418 static int tty_suppress_bold_inverse_default_colors_p
;
420 /* A list of the form `((x . y))' used to avoid consing in
421 Finternal_set_lisp_face_attribute. */
423 static Lisp_Object Vparam_value_alist
;
425 /* The total number of colors currently allocated. */
428 static int ncolors_allocated
;
429 static int npixmaps_allocated
;
433 /* Non-zero means the definition of the `menu' face for new frames has
436 static int menu_face_changed_default
;
439 /* Function prototypes. */
442 struct named_merge_point
;
444 static void set_font_frame_param (Lisp_Object
, Lisp_Object
);
445 static struct face
*realize_face (struct face_cache
*, Lisp_Object
*,
447 static struct face
*realize_non_ascii_face (struct frame
*, Lisp_Object
,
449 static struct face
*realize_x_face (struct face_cache
*, Lisp_Object
*);
450 static struct face
*realize_tty_face (struct face_cache
*, Lisp_Object
*);
451 static bool realize_basic_faces (struct frame
*);
452 static bool realize_default_face (struct frame
*);
453 static void realize_named_face (struct frame
*, Lisp_Object
, int);
454 static struct face_cache
*make_face_cache (struct frame
*);
455 static void clear_face_gcs (struct face_cache
*);
456 static void free_face_cache (struct face_cache
*);
457 static int merge_face_ref (struct frame
*, Lisp_Object
, Lisp_Object
*,
458 int, struct named_merge_point
*);
461 /***********************************************************************
463 ***********************************************************************/
465 #ifdef HAVE_X_WINDOWS
467 #ifdef DEBUG_X_COLORS
469 /* The following is a poor mans infrastructure for debugging X color
470 allocation problems on displays with PseudoColor-8. Some X servers
471 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
472 color reference counts completely so that they don't signal an
473 error when a color is freed whose reference count is already 0.
474 Other X servers do. To help me debug this, the following code
475 implements a simple reference counting schema of its own, for a
476 single display/screen. --gerd. */
478 /* Reference counts for pixel colors. */
480 int color_count
[256];
482 /* Register color PIXEL as allocated. */
485 register_color (unsigned long pixel
)
487 eassert (pixel
< 256);
488 ++color_count
[pixel
];
492 /* Register color PIXEL as deallocated. */
495 unregister_color (unsigned long pixel
)
497 eassert (pixel
< 256);
498 if (color_count
[pixel
] > 0)
499 --color_count
[pixel
];
505 /* Register N colors from PIXELS as deallocated. */
508 unregister_colors (unsigned long *pixels
, int n
)
511 for (i
= 0; i
< n
; ++i
)
512 unregister_color (pixels
[i
]);
516 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
517 doc
: /* Dump currently allocated colors to stderr. */)
522 fputc ('\n', stderr
);
524 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
527 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
530 fputc ('\n', stderr
);
532 fputc ('\t', stderr
);
536 fputc ('\n', stderr
);
540 #endif /* DEBUG_X_COLORS */
543 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
544 color values. Interrupt input must be blocked when this function
548 x_free_colors (struct frame
*f
, long unsigned int *pixels
, int npixels
)
550 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
552 /* If display has an immutable color map, freeing colors is not
553 necessary and some servers don't allow it. So don't do it. */
554 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
556 #ifdef DEBUG_X_COLORS
557 unregister_colors (pixels
, npixels
);
559 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
567 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
568 color values. Interrupt input must be blocked when this function
572 x_free_dpy_colors (Display
*dpy
, Screen
*screen
, Colormap cmap
,
573 long unsigned int *pixels
, int npixels
)
575 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
576 int class = dpyinfo
->visual
->class;
578 /* If display has an immutable color map, freeing colors is not
579 necessary and some servers don't allow it. So don't do it. */
580 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
582 #ifdef DEBUG_X_COLORS
583 unregister_colors (pixels
, npixels
);
585 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
588 #endif /* USE_X_TOOLKIT */
590 /* Create and return a GC for use on frame F. GC values and mask
591 are given by XGCV and MASK. */
594 x_create_gc (struct frame
*f
, long unsigned int mask
, XGCValues
*xgcv
)
598 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
605 /* Free GC which was used on frame F. */
608 x_free_gc (struct frame
*f
, GC gc
)
610 eassert (input_blocked_p ());
611 IF_DEBUG (eassert (--ngcs
>= 0));
612 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
615 #endif /* HAVE_X_WINDOWS */
618 /* W32 emulation of GCs */
621 x_create_gc (struct frame
*f
, unsigned long mask
, XGCValues
*xgcv
)
625 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
632 /* Free GC which was used on frame F. */
635 x_free_gc (struct frame
*f
, GC gc
)
637 IF_DEBUG (eassert (--ngcs
>= 0));
641 #endif /* HAVE_NTGUI */
644 /* NS emulation of GCs */
647 x_create_gc (struct frame
*f
,
651 GC gc
= xmalloc (sizeof *gc
);
657 x_free_gc (struct frame
*f
, GC gc
)
663 /***********************************************************************
665 ***********************************************************************/
667 /* Initialize face cache and basic faces for frame F. */
670 init_frame_faces (struct frame
*f
)
672 /* Make a face cache, if F doesn't have one. */
673 if (FRAME_FACE_CACHE (f
) == NULL
)
674 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
676 #ifdef HAVE_WINDOW_SYSTEM
677 /* Make the image cache. */
678 if (FRAME_WINDOW_P (f
))
680 /* We initialize the image cache when creating the first frame
681 on a terminal, and not during terminal creation. This way,
682 `x-open-connection' on a tty won't create an image cache. */
683 if (FRAME_IMAGE_CACHE (f
) == NULL
)
684 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
685 ++FRAME_IMAGE_CACHE (f
)->refcount
;
687 #endif /* HAVE_WINDOW_SYSTEM */
689 /* Realize basic faces. Must have enough information in frame
690 parameters to realize basic faces at this point. */
691 #ifdef HAVE_X_WINDOWS
692 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
695 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
698 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
700 if (!realize_basic_faces (f
))
705 /* Free face cache of frame F. Called from delete_frame. */
708 free_frame_faces (struct frame
*f
)
710 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
714 free_face_cache (face_cache
);
715 FRAME_FACE_CACHE (f
) = NULL
;
718 #ifdef HAVE_WINDOW_SYSTEM
719 if (FRAME_WINDOW_P (f
))
721 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
724 --image_cache
->refcount
;
725 if (image_cache
->refcount
== 0)
726 free_image_cache (f
);
729 #endif /* HAVE_WINDOW_SYSTEM */
733 /* Clear face caches, and recompute basic faces for frame F. Call
734 this after changing frame parameters on which those faces depend,
735 or when realized faces have been freed due to changing attributes
739 recompute_basic_faces (struct frame
*f
)
741 if (FRAME_FACE_CACHE (f
))
743 clear_face_cache (0);
744 if (!realize_basic_faces (f
))
750 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
751 try to free unused fonts, too. */
754 clear_face_cache (int clear_fonts_p
)
756 #ifdef HAVE_WINDOW_SYSTEM
757 Lisp_Object tail
, frame
;
760 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
763 /* Not yet implemented. */
764 clear_font_cache (frame
);
767 /* From time to time see if we can unload some fonts. This also
768 frees all realized faces on all frames. Fonts needed by
769 faces will be loaded again when faces are realized again. */
770 clear_font_table_count
= 0;
772 FOR_EACH_FRAME (tail
, frame
)
774 struct frame
*f
= XFRAME (frame
);
775 if (FRAME_WINDOW_P (f
)
776 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
777 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 (FRAME_PTR 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 ptrdiff_t i
, nfonts
;
1539 frame
= selected_frame
;
1540 CHECK_LIVE_FRAME (frame
);
1542 font_spec
= Ffont_spec (0, NULL
);
1545 CHECK_STRING (family
);
1546 font_parse_family_registry (family
, Qnil
, font_spec
);
1549 list
= font_list_entities (frame
, font_spec
);
1553 /* Sort the font entities. */
1554 for (i
= 0; i
< 4; i
++)
1555 switch (font_sort_order
[i
])
1558 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1559 case XLFD_POINT_SIZE
:
1560 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1562 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1564 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1566 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1567 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1568 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1569 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1571 ndrivers
= XINT (Flength (list
));
1572 SAFE_ALLOCA_LISP (drivers
, ndrivers
);
1573 for (i
= 0; i
< ndrivers
; i
++, list
= XCDR (list
))
1574 drivers
[i
] = XCAR (list
);
1575 vec
= Fvconcat (ndrivers
, drivers
);
1576 nfonts
= ASIZE (vec
);
1578 qsort (XVECTOR (vec
)->contents
, nfonts
, word_size
,
1579 compare_fonts_by_sort_order
);
1582 for (i
= nfonts
- 1; i
>= 0; --i
)
1584 Lisp_Object font
= AREF (vec
, i
);
1585 Lisp_Object v
= make_uninit_vector (8);
1587 Lisp_Object spacing
;
1589 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1590 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1591 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1592 FRAME_RES_Y (XFRAME (frame
)));
1593 ASET (v
, 2, make_number (point
));
1594 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1595 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1596 spacing
= Ffont_get (font
, QCspacing
);
1597 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1598 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1599 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1601 result
= Fcons (v
, result
);
1608 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1609 doc
: /* Return a list of the names of available fonts matching PATTERN.
1610 If optional arguments FACE and FRAME are specified, return only fonts
1611 the same size as FACE on FRAME.
1613 PATTERN should be a string containing a font name in the XLFD,
1614 Fontconfig, or GTK format. A font name given in the XLFD format may
1615 contain wildcard characters:
1616 the * character matches any substring, and
1617 the ? character matches any single character.
1618 PATTERN is case-insensitive.
1620 The return value is a list of strings, suitable as arguments to
1623 Fonts Emacs can't use may or may not be excluded
1624 even if they match PATTERN and FACE.
1625 The optional fourth argument MAXIMUM sets a limit on how many
1626 fonts to match. The first MAXIMUM fonts are reported.
1627 The optional fifth argument WIDTH, if specified, is a number of columns
1628 occupied by a character of a font. In that case, return only fonts
1629 the WIDTH times as wide as FACE on FRAME. */)
1630 (Lisp_Object pattern
, Lisp_Object face
, Lisp_Object frame
,
1631 Lisp_Object maximum
, Lisp_Object width
)
1634 int size
, avgwidth
IF_LINT (= 0);
1636 check_window_system (NULL
);
1637 CHECK_STRING (pattern
);
1639 if (! NILP (maximum
))
1640 CHECK_NATNUM (maximum
);
1643 CHECK_NUMBER (width
);
1645 /* We can't simply call decode_window_system_frame because
1646 this function may be called before any frame is created. */
1647 f
= decode_live_frame (frame
);
1648 if (! FRAME_WINDOW_P (f
))
1650 /* Perhaps we have not yet created any frame. */
1656 XSETFRAME (frame
, f
);
1658 /* Determine the width standard for comparison with the fonts we find. */
1664 /* This is of limited utility since it works with character
1665 widths. Keep it for compatibility. --gerd. */
1666 int face_id
= lookup_named_face (f
, face
, 0);
1667 struct face
*width_face
= (face_id
< 0
1669 : FACE_FROM_ID (f
, face_id
));
1671 if (width_face
&& width_face
->font
)
1673 size
= width_face
->font
->pixel_size
;
1674 avgwidth
= width_face
->font
->average_width
;
1678 size
= FRAME_FONT (f
)->pixel_size
;
1679 avgwidth
= FRAME_FONT (f
)->average_width
;
1682 avgwidth
*= XINT (width
);
1686 Lisp_Object font_spec
;
1687 Lisp_Object args
[2], tail
;
1689 font_spec
= font_spec_from_name (pattern
);
1690 if (!FONTP (font_spec
))
1691 signal_error ("Invalid font name", pattern
);
1695 Ffont_put (font_spec
, QCsize
, make_number (size
));
1696 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1698 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1699 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1701 Lisp_Object font_entity
;
1703 font_entity
= XCAR (tail
);
1704 if ((NILP (AREF (font_entity
, FONT_SIZE_INDEX
))
1705 || XINT (AREF (font_entity
, FONT_SIZE_INDEX
)) == 0)
1706 && ! NILP (AREF (font_spec
, FONT_SIZE_INDEX
)))
1708 /* This is a scalable font. For backward compatibility,
1709 we set the specified size. */
1710 font_entity
= copy_font_spec (font_entity
);
1711 ASET (font_entity
, FONT_SIZE_INDEX
,
1712 AREF (font_spec
, FONT_SIZE_INDEX
));
1714 XSETCAR (tail
, Ffont_xlfd_name (font_entity
, Qnil
));
1717 /* We don't have to check fontsets. */
1719 args
[1] = list_fontsets (f
, pattern
, size
);
1720 return Fnconc (2, args
);
1724 #endif /* HAVE_WINDOW_SYSTEM */
1727 /***********************************************************************
1729 ***********************************************************************/
1731 /* Access face attributes of face LFACE, a Lisp vector. */
1733 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1734 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1735 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1736 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1737 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1738 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1739 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1740 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1741 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1742 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1743 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1744 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1745 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1746 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1747 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1748 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1749 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1751 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1752 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1754 #define LFACEP(LFACE) \
1756 && ASIZE (LFACE) == LFACE_VECTOR_SIZE \
1757 && EQ (AREF (LFACE, 0), Qface))
1762 /* Check consistency of Lisp face attribute vector ATTRS. */
1765 check_lface_attrs (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
1767 eassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1768 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1769 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1770 eassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1771 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1772 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1773 eassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1774 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1775 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1776 eassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1777 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1778 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1779 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1780 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1781 eassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1782 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1783 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1784 eassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1785 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1786 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1787 eassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1788 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1789 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1790 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
])
1791 || CONSP (attrs
[LFACE_UNDERLINE_INDEX
]));
1792 eassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1793 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1794 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1795 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1796 eassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1797 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1798 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1799 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1800 eassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1801 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1802 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1803 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1804 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1805 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1806 eassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1807 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
1808 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
1809 eassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
1810 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
1811 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
1812 eassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
1813 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
1814 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
1815 eassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
1816 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
1817 || NILP (attrs
[LFACE_INHERIT_INDEX
])
1818 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
1819 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
1820 #ifdef HAVE_WINDOW_SYSTEM
1821 eassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
1822 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
1823 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
1824 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
1825 eassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
1826 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
1827 || FONTP (attrs
[LFACE_FONT_INDEX
]));
1828 eassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
1829 || STRINGP (attrs
[LFACE_FONTSET_INDEX
])
1830 || NILP (attrs
[LFACE_FONTSET_INDEX
]));
1835 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
1838 check_lface (Lisp_Object lface
)
1842 eassert (LFACEP (lface
));
1843 check_lface_attrs (XVECTOR (lface
)->contents
);
1847 #else /* not GLYPH_DEBUG */
1849 #define check_lface_attrs(attrs) (void) 0
1850 #define check_lface(lface) (void) 0
1852 #endif /* GLYPH_DEBUG */
1856 /* Face-merge cycle checking. */
1858 enum named_merge_point_kind
1860 NAMED_MERGE_POINT_NORMAL
,
1861 NAMED_MERGE_POINT_REMAP
1864 /* A `named merge point' is simply a point during face-merging where we
1865 look up a face by name. We keep a stack of which named lookups we're
1866 currently processing so that we can easily detect cycles, using a
1867 linked- list of struct named_merge_point structures, typically
1868 allocated on the stack frame of the named lookup functions which are
1869 active (so no consing is required). */
1870 struct named_merge_point
1872 Lisp_Object face_name
;
1873 enum named_merge_point_kind named_merge_point_kind
;
1874 struct named_merge_point
*prev
;
1878 /* If a face merging cycle is detected for FACE_NAME, return 0,
1879 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
1880 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
1881 pointed to by NAMED_MERGE_POINTS, and return 1. */
1884 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
1885 Lisp_Object face_name
,
1886 enum named_merge_point_kind named_merge_point_kind
,
1887 struct named_merge_point
**named_merge_points
)
1889 struct named_merge_point
*prev
;
1891 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
1892 if (EQ (face_name
, prev
->face_name
))
1894 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
1895 /* A cycle, so fail. */
1897 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
1898 /* A remap `hides ' any previous normal merge points
1899 (because the remap means that it's actually different face),
1900 so as we know the current merge point must be normal, we
1901 can just assume it's OK. */
1905 new_named_merge_point
->face_name
= face_name
;
1906 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
1907 new_named_merge_point
->prev
= *named_merge_points
;
1909 *named_merge_points
= new_named_merge_point
;
1915 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
1916 to make it a symbol. If FACE_NAME is an alias for another face,
1917 return that face's name.
1919 Return default face in case of errors. */
1922 resolve_face_name (Lisp_Object face_name
, int signal_p
)
1924 Lisp_Object orig_face
;
1925 Lisp_Object tortoise
, hare
;
1927 if (STRINGP (face_name
))
1928 face_name
= intern (SSDATA (face_name
));
1930 if (NILP (face_name
) || !SYMBOLP (face_name
))
1933 orig_face
= face_name
;
1934 tortoise
= hare
= face_name
;
1939 hare
= Fget (hare
, Qface_alias
);
1940 if (NILP (hare
) || !SYMBOLP (hare
))
1944 hare
= Fget (hare
, Qface_alias
);
1945 if (NILP (hare
) || !SYMBOLP (hare
))
1948 tortoise
= Fget (tortoise
, Qface_alias
);
1949 if (EQ (hare
, tortoise
))
1952 xsignal1 (Qcircular_list
, orig_face
);
1961 /* Return the face definition of FACE_NAME on frame F. F null means
1962 return the definition for new frames. FACE_NAME may be a string or
1963 a symbol (apparently Emacs 20.2 allowed strings as face names in
1964 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
1965 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
1966 is zero, value is nil if FACE_NAME is not a valid face name. */
1968 lface_from_face_name_no_resolve (struct frame
*f
, Lisp_Object face_name
,
1974 lface
= assq_no_quit (face_name
, f
->face_alist
);
1976 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
1979 lface
= XCDR (lface
);
1981 signal_error ("Invalid face", face_name
);
1983 check_lface (lface
);
1988 /* Return the face definition of FACE_NAME on frame F. F null means
1989 return the definition for new frames. FACE_NAME may be a string or
1990 a symbol (apparently Emacs 20.2 allowed strings as face names in
1991 face text properties; Ediff uses that). If FACE_NAME is an alias
1992 for another face, return that face's definition. If SIGNAL_P is
1993 non-zero, signal an error if FACE_NAME is not a valid face name.
1994 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
1997 lface_from_face_name (struct frame
*f
, Lisp_Object face_name
, int signal_p
)
1999 face_name
= resolve_face_name (face_name
, signal_p
);
2000 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2004 /* Get face attributes of face FACE_NAME from frame-local faces on
2005 frame F. Store the resulting attributes in ATTRS which must point
2006 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2007 is non-zero, signal an error if FACE_NAME does not name a face.
2008 Otherwise, value is zero if FACE_NAME is not a face. */
2011 get_lface_attributes_no_remap (struct frame
*f
, Lisp_Object face_name
,
2012 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
2017 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2020 memcpy (attrs
, XVECTOR (lface
)->contents
,
2021 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2023 return !NILP (lface
);
2026 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2027 F. Store the resulting attributes in ATTRS which must point to a
2028 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2029 alias for another face, use that face's definition. If SIGNAL_P is
2030 non-zero, signal an error if FACE_NAME does not name a face.
2031 Otherwise, value is zero if FACE_NAME is not a face. */
2034 get_lface_attributes (struct frame
*f
, Lisp_Object face_name
,
2035 Lisp_Object attrs
[LFACE_VECTOR_SIZE
], int signal_p
,
2036 struct named_merge_point
*named_merge_points
)
2038 Lisp_Object face_remapping
;
2040 face_name
= resolve_face_name (face_name
, signal_p
);
2042 /* See if SYMBOL has been remapped to some other face (usually this
2043 is done buffer-locally). */
2044 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2045 if (CONSP (face_remapping
))
2047 struct named_merge_point named_merge_point
;
2049 if (push_named_merge_point (&named_merge_point
,
2050 face_name
, NAMED_MERGE_POINT_REMAP
,
2051 &named_merge_points
))
2055 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2056 attrs
[i
] = Qunspecified
;
2058 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2059 signal_p
, named_merge_points
);
2063 /* Default case, no remapping. */
2064 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2068 /* Non-zero if all attributes in face attribute vector ATTRS are
2069 specified, i.e. are non-nil. */
2072 lface_fully_specified_p (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
2076 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2077 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2078 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2081 return i
== LFACE_VECTOR_SIZE
;
2084 #ifdef HAVE_WINDOW_SYSTEM
2086 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2087 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2088 exception is `font' attribute. It is set to FONT_OBJECT regardless
2092 set_lface_from_font (struct frame
*f
, Lisp_Object lface
,
2093 Lisp_Object font_object
, int force_p
)
2096 struct font
*font
= XFONT_OBJECT (font_object
);
2098 /* Set attributes only if unspecified, otherwise face defaults for
2099 new frames would never take effect. If the font doesn't have a
2100 specific property, set a normal value for that. */
2102 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2104 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2106 ASET (lface
, LFACE_FAMILY_INDEX
, SYMBOL_NAME (family
));
2109 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2111 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2113 ASET (lface
, LFACE_FOUNDRY_INDEX
, SYMBOL_NAME (foundry
));
2116 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2118 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, FRAME_RES_Y (f
));
2121 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (pt
));
2124 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2126 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2127 ASET (lface
, LFACE_WEIGHT_INDEX
, ! NILP (val
) ? val
:Qnormal
);
2129 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2131 val
= FONT_SLANT_FOR_FACE (font_object
);
2132 ASET (lface
, LFACE_SLANT_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2134 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2136 val
= FONT_WIDTH_FOR_FACE (font_object
);
2137 ASET (lface
, LFACE_SWIDTH_INDEX
, ! NILP (val
) ? val
: Qnormal
);
2140 ASET (lface
, LFACE_FONT_INDEX
, font_object
);
2144 #endif /* HAVE_WINDOW_SYSTEM */
2147 /* Merges the face height FROM with the face height TO, and returns the
2148 merged height. If FROM is an invalid height, then INVALID is
2149 returned instead. FROM and TO may be either absolute face heights or
2150 `relative' heights; the returned value is always an absolute height
2151 unless both FROM and TO are relative. */
2154 merge_face_heights (Lisp_Object from
, Lisp_Object to
, Lisp_Object invalid
)
2156 Lisp_Object result
= invalid
;
2158 if (INTEGERP (from
))
2159 /* FROM is absolute, just use it as is. */
2161 else if (FLOATP (from
))
2162 /* FROM is a scale, use it to adjust TO. */
2165 /* relative X absolute => absolute */
2166 result
= make_number (XFLOAT_DATA (from
) * XINT (to
));
2167 else if (FLOATP (to
))
2168 /* relative X relative => relative */
2169 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2170 else if (UNSPECIFIEDP (to
))
2173 else if (FUNCTIONP (from
))
2174 /* FROM is a function, which use to adjust TO. */
2176 /* Call function with current height as argument.
2177 From is the new height. */
2178 result
= safe_call1 (from
, to
);
2180 /* Ensure that if TO was absolute, so is the result. */
2181 if (INTEGERP (to
) && !INTEGERP (result
))
2189 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2190 store the resulting attributes in TO, which must be already be
2191 completely specified and contain only absolute attributes. Every
2192 specified attribute of FROM overrides the corresponding attribute of
2193 TO; relative attributes in FROM are merged with the absolute value in
2194 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2195 loops in face inheritance/remapping; it should be 0 when called from
2199 merge_face_vectors (struct frame
*f
, Lisp_Object
*from
, Lisp_Object
*to
,
2200 struct named_merge_point
*named_merge_points
)
2203 Lisp_Object font
= Qnil
;
2205 /* If FROM inherits from some other faces, merge their attributes into
2206 TO before merging FROM's direct attributes. Note that an :inherit
2207 attribute of `unspecified' is the same as one of nil; we never
2208 merge :inherit attributes, so nil is more correct, but lots of
2209 other code uses `unspecified' as a generic value for face attributes. */
2210 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2211 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2212 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2214 if (FONT_SPEC_P (from
[LFACE_FONT_INDEX
]))
2216 if (!UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2217 font
= merge_font_spec (from
[LFACE_FONT_INDEX
], to
[LFACE_FONT_INDEX
]);
2219 font
= copy_font_spec (from
[LFACE_FONT_INDEX
]);
2220 to
[LFACE_FONT_INDEX
] = font
;
2223 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2224 if (!UNSPECIFIEDP (from
[i
]))
2226 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2228 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2229 font_clear_prop (to
, FONT_SIZE_INDEX
);
2231 else if (i
!= LFACE_FONT_INDEX
&& ! EQ (to
[i
], from
[i
]))
2234 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2235 font_clear_prop (to
,
2236 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2237 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2238 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2239 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2240 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2241 : FONT_SLANT_INDEX
));
2245 /* If FROM specifies a font spec, make its contents take precedence
2246 over :family and other attributes. This is needed for face
2247 remapping using :font to work. */
2251 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
2252 to
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
));
2253 if (! NILP (AREF (font
, FONT_FAMILY_INDEX
)))
2254 to
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (font
, FONT_FAMILY_INDEX
));
2255 if (! NILP (AREF (font
, FONT_WEIGHT_INDEX
)))
2256 to
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (font
);
2257 if (! NILP (AREF (font
, FONT_SLANT_INDEX
)))
2258 to
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (font
);
2259 if (! NILP (AREF (font
, FONT_WIDTH_INDEX
)))
2260 to
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (font
);
2261 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
2264 /* TO is always an absolute face, which should inherit from nothing.
2265 We blindly copy the :inherit attribute above and fix it up here. */
2266 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2269 /* Merge the named face FACE_NAME on frame F, into the vector of face
2270 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2271 inheritance. Returns true if FACE_NAME is a valid face name and
2272 merging succeeded. */
2275 merge_named_face (struct frame
*f
, Lisp_Object face_name
, Lisp_Object
*to
,
2276 struct named_merge_point
*named_merge_points
)
2278 struct named_merge_point named_merge_point
;
2280 if (push_named_merge_point (&named_merge_point
,
2281 face_name
, NAMED_MERGE_POINT_NORMAL
,
2282 &named_merge_points
))
2284 struct gcpro gcpro1
;
2285 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2286 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2290 GCPRO1 (named_merge_point
.face_name
);
2291 merge_face_vectors (f
, from
, to
, named_merge_points
);
2302 /* Merge face attributes from the lisp `face reference' FACE_REF on
2303 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2304 problems with FACE_REF cause an error message to be shown. Return
2305 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2306 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2307 list structure; it may be 0 for most callers.
2309 FACE_REF may be a single face specification or a list of such
2310 specifications. Each face specification can be:
2312 1. A symbol or string naming a Lisp face.
2314 2. A property list of the form (KEYWORD VALUE ...) where each
2315 KEYWORD is a face attribute name, and value is an appropriate value
2318 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2319 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2320 for compatibility with 20.2.
2322 Face specifications earlier in lists take precedence over later
2326 merge_face_ref (struct frame
*f
, Lisp_Object face_ref
, Lisp_Object
*to
,
2327 int err_msgs
, struct named_merge_point
*named_merge_points
)
2329 int ok
= 1; /* Succeed without an error? */
2331 if (CONSP (face_ref
))
2333 Lisp_Object first
= XCAR (face_ref
);
2335 if (EQ (first
, Qforeground_color
)
2336 || EQ (first
, Qbackground_color
))
2338 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2339 . COLOR). COLOR must be a string. */
2340 Lisp_Object color_name
= XCDR (face_ref
);
2341 Lisp_Object color
= first
;
2343 if (STRINGP (color_name
))
2345 if (EQ (color
, Qforeground_color
))
2346 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2348 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2353 add_to_log ("Invalid face color", color_name
, Qnil
);
2357 else if (SYMBOLP (first
)
2358 && *SDATA (SYMBOL_NAME (first
)) == ':')
2360 /* Assume this is the property list form. */
2361 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2363 Lisp_Object keyword
= XCAR (face_ref
);
2364 Lisp_Object value
= XCAR (XCDR (face_ref
));
2367 /* Specifying `unspecified' is a no-op. */
2368 if (EQ (value
, Qunspecified
))
2370 else if (EQ (keyword
, QCfamily
))
2372 if (STRINGP (value
))
2374 to
[LFACE_FAMILY_INDEX
] = value
;
2375 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2380 else if (EQ (keyword
, QCfoundry
))
2382 if (STRINGP (value
))
2384 to
[LFACE_FOUNDRY_INDEX
] = value
;
2385 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2390 else if (EQ (keyword
, QCheight
))
2392 Lisp_Object new_height
=
2393 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2395 if (! NILP (new_height
))
2397 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2398 font_clear_prop (to
, FONT_SIZE_INDEX
);
2403 else if (EQ (keyword
, QCweight
))
2405 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2407 to
[LFACE_WEIGHT_INDEX
] = value
;
2408 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2413 else if (EQ (keyword
, QCslant
))
2415 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2417 to
[LFACE_SLANT_INDEX
] = value
;
2418 font_clear_prop (to
, FONT_SLANT_INDEX
);
2423 else if (EQ (keyword
, QCunderline
))
2429 to
[LFACE_UNDERLINE_INDEX
] = value
;
2433 else if (EQ (keyword
, QCoverline
))
2438 to
[LFACE_OVERLINE_INDEX
] = value
;
2442 else if (EQ (keyword
, QCstrike_through
))
2447 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2451 else if (EQ (keyword
, QCbox
))
2454 value
= make_number (1);
2455 if (INTEGERP (value
)
2459 to
[LFACE_BOX_INDEX
] = value
;
2463 else if (EQ (keyword
, QCinverse_video
)
2464 || EQ (keyword
, QCreverse_video
))
2466 if (EQ (value
, Qt
) || NILP (value
))
2467 to
[LFACE_INVERSE_INDEX
] = value
;
2471 else if (EQ (keyword
, QCforeground
))
2473 if (STRINGP (value
))
2474 to
[LFACE_FOREGROUND_INDEX
] = value
;
2478 else if (EQ (keyword
, QCbackground
))
2480 if (STRINGP (value
))
2481 to
[LFACE_BACKGROUND_INDEX
] = value
;
2485 else if (EQ (keyword
, QCstipple
))
2487 #if defined (HAVE_WINDOW_SYSTEM)
2488 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2489 if (!NILP (pixmap_p
))
2490 to
[LFACE_STIPPLE_INDEX
] = value
;
2493 #endif /* HAVE_WINDOW_SYSTEM */
2495 else if (EQ (keyword
, QCwidth
))
2497 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2499 to
[LFACE_SWIDTH_INDEX
] = value
;
2500 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2505 else if (EQ (keyword
, QCfont
))
2508 to
[LFACE_FONT_INDEX
] = value
;
2512 else if (EQ (keyword
, QCinherit
))
2514 /* This is not really very useful; it's just like a
2515 normal face reference. */
2516 if (! merge_face_ref (f
, value
, to
,
2517 err_msgs
, named_merge_points
))
2525 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2529 face_ref
= XCDR (XCDR (face_ref
));
2534 /* This is a list of face refs. Those at the beginning of the
2535 list take precedence over what follows, so we have to merge
2536 from the end backwards. */
2537 Lisp_Object next
= XCDR (face_ref
);
2540 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2542 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2548 /* FACE_REF ought to be a face name. */
2549 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2550 if (!ok
&& err_msgs
)
2551 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2558 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2559 Sinternal_make_lisp_face
, 1, 2, 0,
2560 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2561 If FACE was not known as a face before, create a new one.
2562 If optional argument FRAME is specified, make a frame-local face
2563 for that frame. Otherwise operate on the global face definition.
2564 Value is a vector of face attributes. */)
2565 (Lisp_Object face
, Lisp_Object frame
)
2567 Lisp_Object global_lface
, lface
;
2571 CHECK_SYMBOL (face
);
2572 global_lface
= lface_from_face_name (NULL
, face
, 0);
2576 CHECK_LIVE_FRAME (frame
);
2578 lface
= lface_from_face_name (f
, face
, 0);
2581 f
= NULL
, lface
= Qnil
;
2583 /* Add a global definition if there is none. */
2584 if (NILP (global_lface
))
2586 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2588 ASET (global_lface
, 0, Qface
);
2589 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2590 Vface_new_frame_defaults
);
2592 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2593 face id to Lisp face is given by the vector lface_id_to_name.
2594 The mapping from Lisp face to Lisp face id is given by the
2595 property `face' of the Lisp face name. */
2596 if (next_lface_id
== lface_id_to_name_size
)
2598 xpalloc (lface_id_to_name
, &lface_id_to_name_size
, 1, MAX_FACE_ID
,
2599 sizeof *lface_id_to_name
);
2601 lface_id_to_name
[next_lface_id
] = face
;
2602 Fput (face
, Qface
, make_number (next_lface_id
));
2606 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2607 ASET (global_lface
, i
, Qunspecified
);
2609 /* Add a frame-local definition. */
2614 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2616 ASET (lface
, 0, Qface
);
2617 fset_face_alist (f
, Fcons (Fcons (face
, lface
), f
->face_alist
));
2620 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2621 ASET (lface
, i
, Qunspecified
);
2624 lface
= global_lface
;
2626 /* Changing a named face means that all realized faces depending on
2627 that face are invalid. Since we cannot tell which realized faces
2628 depend on the face, make sure they are all removed. This is done
2629 by incrementing face_change_count. The next call to
2630 init_iterator will then free realized faces. */
2631 if (NILP (Fget (face
, Qface_no_inherit
)))
2633 ++face_change_count
;
2634 ++windows_or_buffers_changed
;
2637 eassert (LFACEP (lface
));
2638 check_lface (lface
);
2643 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2644 Sinternal_lisp_face_p
, 1, 2, 0,
2645 doc
: /* Return non-nil if FACE names a face.
2646 FACE should be a symbol or string.
2647 If optional second argument FRAME is non-nil, check for the
2648 existence of a frame-local face with name FACE on that frame.
2649 Otherwise check for the existence of a global face. */)
2650 (Lisp_Object face
, Lisp_Object frame
)
2654 face
= resolve_face_name (face
, 1);
2658 CHECK_LIVE_FRAME (frame
);
2659 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2662 lface
= lface_from_face_name (NULL
, face
, 0);
2668 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2669 Sinternal_copy_lisp_face
, 4, 4, 0,
2670 doc
: /* Copy face FROM to TO.
2671 If FRAME is t, copy the global face definition of FROM.
2672 Otherwise, copy the frame-local definition of FROM on FRAME.
2673 If NEW-FRAME is a frame, copy that data into the frame-local
2674 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2675 FRAME controls where the data is copied to.
2677 The value is TO. */)
2678 (Lisp_Object from
, Lisp_Object to
, Lisp_Object frame
, Lisp_Object new_frame
)
2680 Lisp_Object lface
, copy
;
2682 CHECK_SYMBOL (from
);
2687 /* Copy global definition of FROM. We don't make copies of
2688 strings etc. because 20.2 didn't do it either. */
2689 lface
= lface_from_face_name (NULL
, from
, 1);
2690 copy
= Finternal_make_lisp_face (to
, Qnil
);
2694 /* Copy frame-local definition of FROM. */
2695 if (NILP (new_frame
))
2697 CHECK_LIVE_FRAME (frame
);
2698 CHECK_LIVE_FRAME (new_frame
);
2699 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2700 copy
= Finternal_make_lisp_face (to
, new_frame
);
2703 vcopy (copy
, 0, XVECTOR (lface
)->contents
, LFACE_VECTOR_SIZE
);
2705 /* Changing a named face means that all realized faces depending on
2706 that face are invalid. Since we cannot tell which realized faces
2707 depend on the face, make sure they are all removed. This is done
2708 by incrementing face_change_count. The next call to
2709 init_iterator will then free realized faces. */
2710 if (NILP (Fget (to
, Qface_no_inherit
)))
2712 ++face_change_count
;
2713 ++windows_or_buffers_changed
;
2720 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2721 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2722 doc
: /* Set attribute ATTR of FACE to VALUE.
2723 FRAME being a frame means change the face on that frame.
2724 FRAME nil means change the face of the selected frame.
2725 FRAME t means change the default for new frames.
2726 FRAME 0 means change the face on all frames, and change the default
2728 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
2731 Lisp_Object old_value
= Qnil
;
2732 /* Set one of enum font_property_index (> 0) if ATTR is one of
2733 font-related attributes other than QCfont and QCfontset. */
2734 enum font_property_index prop_index
= 0;
2736 CHECK_SYMBOL (face
);
2737 CHECK_SYMBOL (attr
);
2739 face
= resolve_face_name (face
, 1);
2741 /* If FRAME is 0, change face on all frames, and change the
2742 default for new frames. */
2743 if (INTEGERP (frame
) && XINT (frame
) == 0)
2746 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2747 FOR_EACH_FRAME (tail
, frame
)
2748 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2752 /* Set lface to the Lisp attribute vector of FACE. */
2755 lface
= lface_from_face_name (NULL
, face
, 1);
2757 /* When updating face-new-frame-defaults, we put :ignore-defface
2758 where the caller wants `unspecified'. This forces the frame
2759 defaults to ignore the defface value. Otherwise, the defface
2760 will take effect, which is generally not what is intended.
2761 The value of that attribute will be inherited from some other
2762 face during face merging. See internal_merge_in_global_face. */
2763 if (UNSPECIFIEDP (value
))
2764 value
= QCignore_defface
;
2769 frame
= selected_frame
;
2771 CHECK_LIVE_FRAME (frame
);
2772 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2774 /* If a frame-local face doesn't exist yet, create one. */
2776 lface
= Finternal_make_lisp_face (face
, frame
);
2779 if (EQ (attr
, QCfamily
))
2781 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2783 CHECK_STRING (value
);
2784 if (SCHARS (value
) == 0)
2785 signal_error ("Invalid face family", value
);
2787 old_value
= LFACE_FAMILY (lface
);
2788 ASET (lface
, LFACE_FAMILY_INDEX
, value
);
2789 prop_index
= FONT_FAMILY_INDEX
;
2791 else if (EQ (attr
, QCfoundry
))
2793 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2795 CHECK_STRING (value
);
2796 if (SCHARS (value
) == 0)
2797 signal_error ("Invalid face foundry", value
);
2799 old_value
= LFACE_FOUNDRY (lface
);
2800 ASET (lface
, LFACE_FOUNDRY_INDEX
, value
);
2801 prop_index
= FONT_FOUNDRY_INDEX
;
2803 else if (EQ (attr
, QCheight
))
2805 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2807 if (EQ (face
, Qdefault
))
2809 /* The default face must have an absolute size. */
2810 if (!INTEGERP (value
) || XINT (value
) <= 0)
2811 signal_error ("Default face height not absolute and positive",
2816 /* For non-default faces, do a test merge with a random
2817 height to see if VALUE's ok. */
2818 Lisp_Object test
= merge_face_heights (value
,
2821 if (!INTEGERP (test
) || XINT (test
) <= 0)
2822 signal_error ("Face height does not produce a positive integer",
2827 old_value
= LFACE_HEIGHT (lface
);
2828 ASET (lface
, LFACE_HEIGHT_INDEX
, value
);
2829 prop_index
= FONT_SIZE_INDEX
;
2831 else if (EQ (attr
, QCweight
))
2833 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2835 CHECK_SYMBOL (value
);
2836 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
2837 signal_error ("Invalid face weight", value
);
2839 old_value
= LFACE_WEIGHT (lface
);
2840 ASET (lface
, LFACE_WEIGHT_INDEX
, value
);
2841 prop_index
= FONT_WEIGHT_INDEX
;
2843 else if (EQ (attr
, QCslant
))
2845 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2847 CHECK_SYMBOL (value
);
2848 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
2849 signal_error ("Invalid face slant", value
);
2851 old_value
= LFACE_SLANT (lface
);
2852 ASET (lface
, LFACE_SLANT_INDEX
, value
);
2853 prop_index
= FONT_SLANT_INDEX
;
2855 else if (EQ (attr
, QCunderline
))
2859 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2861 else if (NILP (value
) || EQ (value
, Qt
))
2863 else if (STRINGP (value
) && SCHARS (value
) > 0)
2865 else if (CONSP (value
))
2867 Lisp_Object key
, val
, list
;
2870 /* FIXME? This errs on the side of acceptance. Eg it accepts:
2871 (defface foo '((t :underline 'foo) "doc")
2872 Maybe this is intentional, maybe it isn't.
2873 Non-nil symbols other than t are not documented as being valid.
2874 Eg compare with inverse-video, which explicitly rejects them.
2878 while (!NILP (CAR_SAFE(list
)))
2880 key
= CAR_SAFE (list
);
2881 list
= CDR_SAFE (list
);
2882 val
= CAR_SAFE (list
);
2883 list
= CDR_SAFE (list
);
2885 if (NILP (key
) || NILP (val
))
2891 else if (EQ (key
, QCcolor
)
2892 && !(EQ (val
, Qforeground_color
)
2893 || (STRINGP (val
) && SCHARS (val
) > 0)))
2899 else if (EQ (key
, QCstyle
)
2900 && !(EQ (val
, Qline
) || EQ (val
, Qwave
)))
2909 signal_error ("Invalid face underline", value
);
2911 old_value
= LFACE_UNDERLINE (lface
);
2912 ASET (lface
, LFACE_UNDERLINE_INDEX
, value
);
2914 else if (EQ (attr
, QCoverline
))
2916 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2917 if ((SYMBOLP (value
)
2919 && !EQ (value
, Qnil
))
2920 /* Overline color. */
2922 && SCHARS (value
) == 0))
2923 signal_error ("Invalid face overline", value
);
2925 old_value
= LFACE_OVERLINE (lface
);
2926 ASET (lface
, LFACE_OVERLINE_INDEX
, value
);
2928 else if (EQ (attr
, QCstrike_through
))
2930 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
2931 if ((SYMBOLP (value
)
2933 && !EQ (value
, Qnil
))
2934 /* Strike-through color. */
2936 && SCHARS (value
) == 0))
2937 signal_error ("Invalid face strike-through", value
);
2939 old_value
= LFACE_STRIKE_THROUGH (lface
);
2940 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, value
);
2942 else if (EQ (attr
, QCbox
))
2946 /* Allow t meaning a simple box of width 1 in foreground color
2949 value
= make_number (1);
2951 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
2953 else if (NILP (value
))
2955 else if (INTEGERP (value
))
2956 valid_p
= XINT (value
) != 0;
2957 else if (STRINGP (value
))
2958 valid_p
= SCHARS (value
) > 0;
2959 else if (CONSP (value
))
2975 if (EQ (k
, QCline_width
))
2977 if (!INTEGERP (v
) || XINT (v
) == 0)
2980 else if (EQ (k
, QCcolor
))
2982 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
2985 else if (EQ (k
, QCstyle
))
2987 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
2994 valid_p
= NILP (tem
);
3000 signal_error ("Invalid face box", value
);
3002 old_value
= LFACE_BOX (lface
);
3003 ASET (lface
, LFACE_BOX_INDEX
, value
);
3005 else if (EQ (attr
, QCinverse_video
)
3006 || EQ (attr
, QCreverse_video
))
3008 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3010 CHECK_SYMBOL (value
);
3011 if (!EQ (value
, Qt
) && !NILP (value
))
3012 signal_error ("Invalid inverse-video face attribute value", value
);
3014 old_value
= LFACE_INVERSE (lface
);
3015 ASET (lface
, LFACE_INVERSE_INDEX
, value
);
3017 else if (EQ (attr
, QCforeground
))
3019 /* Compatibility with 20.x. */
3021 value
= Qunspecified
;
3022 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3024 /* Don't check for valid color names here because it depends
3025 on the frame (display) whether the color will be valid
3026 when the face is realized. */
3027 CHECK_STRING (value
);
3028 if (SCHARS (value
) == 0)
3029 signal_error ("Empty foreground color value", value
);
3031 old_value
= LFACE_FOREGROUND (lface
);
3032 ASET (lface
, LFACE_FOREGROUND_INDEX
, value
);
3034 else if (EQ (attr
, QCbackground
))
3036 /* Compatibility with 20.x. */
3038 value
= Qunspecified
;
3039 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3041 /* Don't check for valid color names here because it depends
3042 on the frame (display) whether the color will be valid
3043 when the face is realized. */
3044 CHECK_STRING (value
);
3045 if (SCHARS (value
) == 0)
3046 signal_error ("Empty background color value", value
);
3048 old_value
= LFACE_BACKGROUND (lface
);
3049 ASET (lface
, LFACE_BACKGROUND_INDEX
, value
);
3051 else if (EQ (attr
, QCstipple
))
3053 #if defined (HAVE_WINDOW_SYSTEM)
3054 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3056 && NILP (Fbitmap_spec_p (value
)))
3057 signal_error ("Invalid stipple attribute", value
);
3058 old_value
= LFACE_STIPPLE (lface
);
3059 ASET (lface
, LFACE_STIPPLE_INDEX
, value
);
3060 #endif /* HAVE_WINDOW_SYSTEM */
3062 else if (EQ (attr
, QCwidth
))
3064 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3066 CHECK_SYMBOL (value
);
3067 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3068 signal_error ("Invalid face width", value
);
3070 old_value
= LFACE_SWIDTH (lface
);
3071 ASET (lface
, LFACE_SWIDTH_INDEX
, value
);
3072 prop_index
= FONT_WIDTH_INDEX
;
3074 else if (EQ (attr
, QCfont
))
3076 #ifdef HAVE_WINDOW_SYSTEM
3077 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3079 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3083 old_value
= LFACE_FONT (lface
);
3084 if (! FONTP (value
))
3086 if (STRINGP (value
))
3088 Lisp_Object name
= value
;
3089 int fontset
= fs_query_fontset (name
, 0);
3092 name
= fontset_ascii (fontset
);
3093 value
= font_spec_from_name (name
);
3095 signal_error ("Invalid font name", name
);
3098 signal_error ("Invalid font or font-spec", value
);
3101 f
= XFRAME (selected_frame
);
3104 if (! FONT_OBJECT_P (value
))
3106 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3107 Lisp_Object font_object
;
3109 font_object
= font_load_for_lface (f
, attrs
, value
);
3110 if (NILP (font_object
))
3111 signal_error ("Font not available", value
);
3112 value
= font_object
;
3114 set_lface_from_font (f
, lface
, value
, 1);
3117 ASET (lface
, LFACE_FONT_INDEX
, value
);
3119 #endif /* HAVE_WINDOW_SYSTEM */
3121 else if (EQ (attr
, QCfontset
))
3123 #ifdef HAVE_WINDOW_SYSTEM
3124 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3128 old_value
= LFACE_FONTSET (lface
);
3129 tmp
= Fquery_fontset (value
, Qnil
);
3131 signal_error ("Invalid fontset name", value
);
3132 ASET (lface
, LFACE_FONTSET_INDEX
, value
= tmp
);
3134 #endif /* HAVE_WINDOW_SYSTEM */
3136 else if (EQ (attr
, QCinherit
))
3139 if (SYMBOLP (value
))
3142 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3143 if (!SYMBOLP (XCAR (tail
)))
3146 ASET (lface
, LFACE_INHERIT_INDEX
, value
);
3148 signal_error ("Invalid face inheritance", value
);
3150 else if (EQ (attr
, QCbold
))
3152 old_value
= LFACE_WEIGHT (lface
);
3153 ASET (lface
, LFACE_WEIGHT_INDEX
, NILP (value
) ? Qnormal
: Qbold
);
3154 prop_index
= FONT_WEIGHT_INDEX
;
3156 else if (EQ (attr
, QCitalic
))
3159 old_value
= LFACE_SLANT (lface
);
3160 ASET (lface
, LFACE_SLANT_INDEX
, NILP (value
) ? Qnormal
: Qitalic
);
3161 prop_index
= FONT_SLANT_INDEX
;
3164 signal_error ("Invalid face attribute name", attr
);
3168 /* If a font-related attribute other than QCfont and QCfontset
3169 is specified, and if the original QCfont attribute has a font
3170 (font-spec or font-object), set the corresponding property in
3171 the font to nil so that the font selector doesn't think that
3172 the attribute is mandatory. Also, clear the average
3174 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3177 /* Changing a named face means that all realized faces depending on
3178 that face are invalid. Since we cannot tell which realized faces
3179 depend on the face, make sure they are all removed. This is done
3180 by incrementing face_change_count. The next call to
3181 init_iterator will then free realized faces. */
3183 && NILP (Fget (face
, Qface_no_inherit
))
3184 && NILP (Fequal (old_value
, value
)))
3186 ++face_change_count
;
3187 ++windows_or_buffers_changed
;
3190 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3191 && NILP (Fequal (old_value
, value
)))
3197 if (EQ (face
, Qdefault
))
3199 #ifdef HAVE_WINDOW_SYSTEM
3200 /* Changed font-related attributes of the `default' face are
3201 reflected in changed `font' frame parameters. */
3203 && (prop_index
|| EQ (attr
, QCfont
))
3204 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3205 set_font_frame_param (frame
, lface
);
3207 #endif /* HAVE_WINDOW_SYSTEM */
3209 if (EQ (attr
, QCforeground
))
3210 param
= Qforeground_color
;
3211 else if (EQ (attr
, QCbackground
))
3212 param
= Qbackground_color
;
3214 #ifdef HAVE_WINDOW_SYSTEM
3216 else if (EQ (face
, Qscroll_bar
))
3218 /* Changing the colors of `scroll-bar' sets frame parameters
3219 `scroll-bar-foreground' and `scroll-bar-background'. */
3220 if (EQ (attr
, QCforeground
))
3221 param
= Qscroll_bar_foreground
;
3222 else if (EQ (attr
, QCbackground
))
3223 param
= Qscroll_bar_background
;
3225 #endif /* not HAVE_NTGUI */
3226 else if (EQ (face
, Qborder
))
3228 /* Changing background color of `border' sets frame parameter
3230 if (EQ (attr
, QCbackground
))
3231 param
= Qborder_color
;
3233 else if (EQ (face
, Qcursor
))
3235 /* Changing background color of `cursor' sets frame parameter
3237 if (EQ (attr
, QCbackground
))
3238 param
= Qcursor_color
;
3240 else if (EQ (face
, Qmouse
))
3242 /* Changing background color of `mouse' sets frame parameter
3244 if (EQ (attr
, QCbackground
))
3245 param
= Qmouse_color
;
3247 #endif /* HAVE_WINDOW_SYSTEM */
3248 else if (EQ (face
, Qmenu
))
3250 /* Indicate that we have to update the menu bar when
3251 realizing faces on FRAME. FRAME t change the
3252 default for new frames. We do this by setting
3253 setting the flag in new face caches */
3256 struct frame
*f
= XFRAME (frame
);
3257 if (FRAME_FACE_CACHE (f
) == NULL
)
3258 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3259 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3262 menu_face_changed_default
= 1;
3268 /* Update `default-frame-alist', which is used for new frames. */
3270 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3273 /* Update the current frame's parameters. */
3276 cons
= XCAR (Vparam_value_alist
);
3277 XSETCAR (cons
, param
);
3278 XSETCDR (cons
, value
);
3279 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3288 /* Update the corresponding face when frame parameter PARAM on frame F
3289 has been assigned the value NEW_VALUE. */
3292 update_face_from_frame_parameter (struct frame
*f
, Lisp_Object param
,
3293 Lisp_Object new_value
)
3295 Lisp_Object face
= Qnil
;
3298 /* If there are no faces yet, give up. This is the case when called
3299 from Fx_create_frame, and we do the necessary things later in
3300 face-set-after-frame-defaults. */
3301 if (NILP (f
->face_alist
))
3304 if (EQ (param
, Qforeground_color
))
3307 lface
= lface_from_face_name (f
, face
, 1);
3308 ASET (lface
, LFACE_FOREGROUND_INDEX
,
3309 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3310 realize_basic_faces (f
);
3312 else if (EQ (param
, Qbackground_color
))
3316 /* Changing the background color might change the background
3317 mode, so that we have to load new defface specs.
3318 Call frame-set-background-mode to do that. */
3319 XSETFRAME (frame
, f
);
3320 call1 (Qframe_set_background_mode
, frame
);
3323 lface
= lface_from_face_name (f
, face
, 1);
3324 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3325 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3326 realize_basic_faces (f
);
3328 #ifdef HAVE_WINDOW_SYSTEM
3329 else if (EQ (param
, Qborder_color
))
3332 lface
= lface_from_face_name (f
, face
, 1);
3333 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3334 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3336 else if (EQ (param
, Qcursor_color
))
3339 lface
= lface_from_face_name (f
, face
, 1);
3340 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3341 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3343 else if (EQ (param
, Qmouse_color
))
3346 lface
= lface_from_face_name (f
, face
, 1);
3347 ASET (lface
, LFACE_BACKGROUND_INDEX
,
3348 (STRINGP (new_value
) ? new_value
: Qunspecified
));
3352 /* Changing a named face means that all realized faces depending on
3353 that face are invalid. Since we cannot tell which realized faces
3354 depend on the face, make sure they are all removed. This is done
3355 by incrementing face_change_count. The next call to
3356 init_iterator will then free realized faces. */
3358 && NILP (Fget (face
, Qface_no_inherit
)))
3360 ++face_change_count
;
3361 ++windows_or_buffers_changed
;
3366 #ifdef HAVE_WINDOW_SYSTEM
3368 /* Set the `font' frame parameter of FRAME determined from the
3369 font-object set in `default' face attributes LFACE. */
3372 set_font_frame_param (Lisp_Object frame
, Lisp_Object lface
)
3374 struct frame
*f
= XFRAME (frame
);
3377 if (FRAME_WINDOW_P (f
)
3378 /* Don't do anything if the font is `unspecified'. This can
3379 happen during frame creation. */
3380 && (font
= LFACE_FONT (lface
),
3381 ! UNSPECIFIEDP (font
)))
3383 if (FONT_SPEC_P (font
))
3385 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3388 ASET (lface
, LFACE_FONT_INDEX
, font
);
3390 f
->default_face_done_p
= 0;
3391 Fmodify_frame_parameters (frame
, list1 (Fcons (Qfont
, font
)));
3395 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3396 Sinternal_face_x_get_resource
, 2, 3, 0,
3397 doc
: /* Get the value of X resource RESOURCE, class CLASS.
3398 Returned value is for the display of frame FRAME. If FRAME is not
3399 specified or nil, use selected frame. This function exists because
3400 ordinary `x-get-resource' doesn't take a frame argument. */)
3401 (Lisp_Object resource
, Lisp_Object
class, Lisp_Object frame
)
3403 Lisp_Object value
= Qnil
;
3406 CHECK_STRING (resource
);
3407 CHECK_STRING (class);
3408 f
= decode_live_frame (frame
);
3410 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (f
),
3411 resource
, class, Qnil
, Qnil
);
3417 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3418 If VALUE is "on" or "true", return t. If VALUE is "off" or
3419 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3420 error; if SIGNAL_P is zero, return 0. */
3423 face_boolean_x_resource_value (Lisp_Object value
, int signal_p
)
3425 Lisp_Object result
= make_number (0);
3427 eassert (STRINGP (value
));
3429 if (xstrcasecmp (SSDATA (value
), "on") == 0
3430 || xstrcasecmp (SSDATA (value
), "true") == 0)
3432 else if (xstrcasecmp (SSDATA (value
), "off") == 0
3433 || xstrcasecmp (SSDATA (value
), "false") == 0)
3435 else if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3436 result
= Qunspecified
;
3438 signal_error ("Invalid face attribute value from X resource", value
);
3444 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3445 Finternal_set_lisp_face_attribute_from_resource
,
3446 Sinternal_set_lisp_face_attribute_from_resource
,
3447 3, 4, 0, doc
: /* */)
3448 (Lisp_Object face
, Lisp_Object attr
, Lisp_Object value
, Lisp_Object frame
)
3450 CHECK_SYMBOL (face
);
3451 CHECK_SYMBOL (attr
);
3452 CHECK_STRING (value
);
3454 if (xstrcasecmp (SSDATA (value
), "unspecified") == 0)
3455 value
= Qunspecified
;
3456 else if (EQ (attr
, QCheight
))
3458 value
= Fstring_to_number (value
, make_number (10));
3459 if (XINT (value
) <= 0)
3460 signal_error ("Invalid face height from X resource", value
);
3462 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3463 value
= face_boolean_x_resource_value (value
, 1);
3464 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3465 value
= intern (SSDATA (value
));
3466 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3467 value
= face_boolean_x_resource_value (value
, 1);
3468 else if (EQ (attr
, QCunderline
)
3469 || EQ (attr
, QCoverline
)
3470 || EQ (attr
, QCstrike_through
))
3472 Lisp_Object boolean_value
;
3474 /* If the result of face_boolean_x_resource_value is t or nil,
3475 VALUE does NOT specify a color. */
3476 boolean_value
= face_boolean_x_resource_value (value
, 0);
3477 if (SYMBOLP (boolean_value
))
3478 value
= boolean_value
;
3480 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3481 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3483 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3486 #endif /* HAVE_WINDOW_SYSTEM */
3489 /***********************************************************************
3491 ***********************************************************************/
3493 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3495 /* Make menus on frame F appear as specified by the `menu' face. */
3498 x_update_menu_appearance (struct frame
*f
)
3500 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3504 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3509 ptrdiff_t bufsize
= sizeof line
;
3510 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3511 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3512 const char *myname
= SSDATA (Vx_resource_name
);
3515 const char *popup_path
= "popup_menu";
3517 const char *popup_path
= "menu.popup";
3520 if (STRINGP (LFACE_FOREGROUND (lface
)))
3522 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*foreground: %s",
3524 SDATA (LFACE_FOREGROUND (lface
)));
3525 XrmPutLineResource (&rdb
, line
);
3526 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*foreground: %s",
3527 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3528 XrmPutLineResource (&rdb
, line
);
3532 if (STRINGP (LFACE_BACKGROUND (lface
)))
3534 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*background: %s",
3536 SDATA (LFACE_BACKGROUND (lface
)));
3537 XrmPutLineResource (&rdb
, line
);
3539 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*background: %s",
3540 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3541 XrmPutLineResource (&rdb
, line
);
3546 /* On Solaris 5.8, it's been reported that the `menu' face
3547 can be unspecified here, during startup. Why this
3548 happens remains unknown. -- cyd */
3549 && FONTP (LFACE_FONT (lface
))
3550 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3551 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3552 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3553 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3554 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3555 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3557 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3559 const char *suffix
= "List";
3562 #if defined HAVE_X_I18N
3564 const char *suffix
= "Set";
3566 const char *suffix
= "";
3573 #if defined HAVE_X_I18N
3574 char *fontsetname
= xic_create_fontsetname (SSDATA (xlfd
), motif
);
3576 char *fontsetname
= SSDATA (xlfd
);
3578 exprintf (&buf
, &bufsize
, line
, -1, "%s.pane.menubar*font%s: %s",
3579 myname
, suffix
, fontsetname
);
3580 XrmPutLineResource (&rdb
, line
);
3582 exprintf (&buf
, &bufsize
, line
, -1, "%s.%s*font%s: %s",
3583 myname
, popup_path
, suffix
, fontsetname
);
3584 XrmPutLineResource (&rdb
, line
);
3586 if (fontsetname
!= SSDATA (xlfd
))
3587 xfree (fontsetname
);
3591 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3592 free_frame_menubar (f
);
3599 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3602 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3603 Sface_attribute_relative_p
,
3605 doc
: /* Check whether a face attribute value is relative.
3606 Specifically, this function returns t if the attribute ATTRIBUTE
3607 with the value VALUE is relative.
3609 A relative value is one that doesn't entirely override whatever is
3610 inherited from another face. For most possible attributes,
3611 the only relative value that users see is `unspecified'.
3612 However, for :height, floating point values are also relative. */)
3613 (Lisp_Object attribute
, Lisp_Object value
)
3615 if (EQ (value
, Qunspecified
) || (EQ (value
, QCignore_defface
)))
3617 else if (EQ (attribute
, QCheight
))
3618 return INTEGERP (value
) ? Qnil
: Qt
;
3623 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3625 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3626 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3627 the result will be absolute, otherwise it will be relative. */)
3628 (Lisp_Object attribute
, Lisp_Object value1
, Lisp_Object value2
)
3630 if (EQ (value1
, Qunspecified
) || EQ (value1
, QCignore_defface
))
3632 else if (EQ (attribute
, QCheight
))
3633 return merge_face_heights (value1
, value2
, value1
);
3639 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3640 Sinternal_get_lisp_face_attribute
,
3642 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3643 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3644 face attribute name, signal an error.
3645 If the optional argument FRAME is given, report on face SYMBOL in that
3646 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3647 frames). If FRAME is omitted or nil, use the selected frame. */)
3648 (Lisp_Object symbol
, Lisp_Object keyword
, Lisp_Object frame
)
3650 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3651 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 1), value
= Qnil
;
3653 CHECK_SYMBOL (symbol
);
3654 CHECK_SYMBOL (keyword
);
3656 if (EQ (keyword
, QCfamily
))
3657 value
= LFACE_FAMILY (lface
);
3658 else if (EQ (keyword
, QCfoundry
))
3659 value
= LFACE_FOUNDRY (lface
);
3660 else if (EQ (keyword
, QCheight
))
3661 value
= LFACE_HEIGHT (lface
);
3662 else if (EQ (keyword
, QCweight
))
3663 value
= LFACE_WEIGHT (lface
);
3664 else if (EQ (keyword
, QCslant
))
3665 value
= LFACE_SLANT (lface
);
3666 else if (EQ (keyword
, QCunderline
))
3667 value
= LFACE_UNDERLINE (lface
);
3668 else if (EQ (keyword
, QCoverline
))
3669 value
= LFACE_OVERLINE (lface
);
3670 else if (EQ (keyword
, QCstrike_through
))
3671 value
= LFACE_STRIKE_THROUGH (lface
);
3672 else if (EQ (keyword
, QCbox
))
3673 value
= LFACE_BOX (lface
);
3674 else if (EQ (keyword
, QCinverse_video
)
3675 || EQ (keyword
, QCreverse_video
))
3676 value
= LFACE_INVERSE (lface
);
3677 else if (EQ (keyword
, QCforeground
))
3678 value
= LFACE_FOREGROUND (lface
);
3679 else if (EQ (keyword
, QCbackground
))
3680 value
= LFACE_BACKGROUND (lface
);
3681 else if (EQ (keyword
, QCstipple
))
3682 value
= LFACE_STIPPLE (lface
);
3683 else if (EQ (keyword
, QCwidth
))
3684 value
= LFACE_SWIDTH (lface
);
3685 else if (EQ (keyword
, QCinherit
))
3686 value
= LFACE_INHERIT (lface
);
3687 else if (EQ (keyword
, QCfont
))
3688 value
= LFACE_FONT (lface
);
3689 else if (EQ (keyword
, QCfontset
))
3690 value
= LFACE_FONTSET (lface
);
3692 signal_error ("Invalid face attribute name", keyword
);
3694 if (IGNORE_DEFFACE_P (value
))
3695 return Qunspecified
;
3701 DEFUN ("internal-lisp-face-attribute-values",
3702 Finternal_lisp_face_attribute_values
,
3703 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3704 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3705 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3708 Lisp_Object result
= Qnil
;
3710 CHECK_SYMBOL (attr
);
3712 if (EQ (attr
, QCunderline
) || EQ (attr
, QCoverline
)
3713 || EQ (attr
, QCstrike_through
)
3714 || EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3715 result
= list2 (Qt
, Qnil
);
3721 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3722 Sinternal_merge_in_global_face
, 2, 2, 0,
3723 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3724 Default face attributes override any local face attributes. */)
3725 (Lisp_Object face
, Lisp_Object frame
)
3728 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3729 struct frame
*f
= XFRAME (frame
);
3731 CHECK_LIVE_FRAME (frame
);
3732 global_lface
= lface_from_face_name (NULL
, face
, 1);
3733 local_lface
= lface_from_face_name (f
, face
, 0);
3734 if (NILP (local_lface
))
3735 local_lface
= Finternal_make_lisp_face (face
, frame
);
3737 /* Make every specified global attribute override the local one.
3738 BEWARE!! This is only used from `face-set-after-frame-default' where
3739 the local frame is defined from default specs in `face-defface-spec'
3740 and those should be overridden by global settings. Hence the strange
3741 "global before local" priority. */
3742 lvec
= XVECTOR (local_lface
)->contents
;
3743 gvec
= XVECTOR (global_lface
)->contents
;
3744 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3745 if (IGNORE_DEFFACE_P (gvec
[i
]))
3746 ASET (local_lface
, i
, Qunspecified
);
3747 else if (! UNSPECIFIEDP (gvec
[i
]))
3748 ASET (local_lface
, i
, AREF (global_lface
, i
));
3750 /* If the default face was changed, update the face cache and the
3751 `font' frame parameter. */
3752 if (EQ (face
, Qdefault
))
3754 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3755 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3756 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3758 /* This can be NULL (e.g., in batch mode). */
3761 /* Ensure that the face vector is fully specified by merging
3762 the previously-cached vector. */
3763 memcpy (attrs
, oldface
->lface
, sizeof attrs
);
3764 merge_face_vectors (f
, lvec
, attrs
, 0);
3765 vcopy (local_lface
, 0, attrs
, LFACE_VECTOR_SIZE
);
3766 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3768 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3769 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3770 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3771 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3772 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3773 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3774 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3777 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3778 Fmodify_frame_parameters (frame
, list1 (Fcons (Qfont
, name
)));
3781 if (STRINGP (gvec
[LFACE_FOREGROUND_INDEX
]))
3782 Fmodify_frame_parameters (frame
,
3783 list1 (Fcons (Qforeground_color
,
3784 gvec
[LFACE_FOREGROUND_INDEX
])));
3786 if (STRINGP (gvec
[LFACE_BACKGROUND_INDEX
]))
3787 Fmodify_frame_parameters (frame
,
3788 list1 (Fcons (Qbackground_color
,
3789 gvec
[LFACE_BACKGROUND_INDEX
])));
3797 /* The following function is implemented for compatibility with 20.2.
3798 The function is used in x-resolve-fonts when it is asked to
3799 return fonts with the same size as the font of a face. This is
3800 done in fontset.el. */
3802 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3803 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3804 The font name is, by default, for ASCII characters.
3805 If the optional argument FRAME is given, report on face FACE in that frame.
3806 If FRAME is t, report on the defaults for face FACE (for new frames).
3807 The font default for a face is either nil, or a list
3808 of the form (bold), (italic) or (bold italic).
3809 If FRAME is omitted or nil, use the selected frame. And, in this case,
3810 if the optional third argument CHARACTER is given,
3811 return the font name used for CHARACTER. */)
3812 (Lisp_Object face
, Lisp_Object frame
, Lisp_Object character
)
3816 Lisp_Object result
= Qnil
;
3817 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3819 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3820 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3821 result
= Fcons (Qbold
, result
);
3823 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
3824 && !EQ (LFACE_SLANT (lface
), Qnormal
))
3825 result
= Fcons (Qitalic
, result
);
3831 struct frame
*f
= decode_live_frame (frame
);
3832 int face_id
= lookup_named_face (f
, face
, 1);
3833 struct face
*fface
= FACE_FROM_ID (f
, face_id
);
3837 #ifdef HAVE_WINDOW_SYSTEM
3838 if (FRAME_WINDOW_P (f
) && !NILP (character
))
3840 CHECK_CHARACTER (character
);
3841 face_id
= FACE_FOR_CHAR (f
, fface
, XINT (character
), -1, Qnil
);
3842 fface
= FACE_FROM_ID (f
, face_id
);
3845 ? fface
->font
->props
[FONT_NAME_INDEX
]
3847 #else /* !HAVE_WINDOW_SYSTEM */
3848 return build_string (FRAME_MSDOS_P (f
)
3850 : FRAME_W32_P (f
) ? "w32term"
3857 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
3858 all attributes are `equal'. Tries to be fast because this function
3859 is called quite often. */
3862 face_attr_equal_p (Lisp_Object v1
, Lisp_Object v2
)
3864 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
3865 and the other is specified. */
3866 if (XTYPE (v1
) != XTYPE (v2
))
3875 if (SBYTES (v1
) != SBYTES (v2
))
3878 return memcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
3885 return !NILP (Fequal (v1
, v2
));
3890 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
3891 all attributes are `equal'. Tries to be fast because this function
3892 is called quite often. */
3895 lface_equal_p (Lisp_Object
*v1
, Lisp_Object
*v2
)
3900 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
3901 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
3907 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
3908 Sinternal_lisp_face_equal_p
, 2, 3, 0,
3909 doc
: /* True if FACE1 and FACE2 are equal.
3910 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
3911 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
3912 If FRAME is omitted or nil, use the selected frame. */)
3913 (Lisp_Object face1
, Lisp_Object face2
, Lisp_Object frame
)
3917 Lisp_Object lface1
, lface2
;
3919 /* Don't use decode_window_system_frame here because this function
3920 is called before X frames exist. At that time, if FRAME is nil,
3921 selected_frame will be used which is the frame dumped with
3922 Emacs. That frame is not an X frame. */
3923 f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3925 lface1
= lface_from_face_name (f
, face1
, 1);
3926 lface2
= lface_from_face_name (f
, face2
, 1);
3927 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
3928 XVECTOR (lface2
)->contents
);
3929 return equal_p
? Qt
: Qnil
;
3933 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
3934 Sinternal_lisp_face_empty_p
, 1, 2, 0,
3935 doc
: /* True if FACE has no attribute specified.
3936 If the optional argument FRAME is given, report on face FACE in that frame.
3937 If FRAME is t, report on the defaults for face FACE (for new frames).
3938 If FRAME is omitted or nil, use the selected frame. */)
3939 (Lisp_Object face
, Lisp_Object frame
)
3941 struct frame
*f
= EQ (frame
, Qt
) ? NULL
: decode_live_frame (frame
);
3942 Lisp_Object lface
= lface_from_face_name (f
, face
, 1);
3945 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3946 if (!UNSPECIFIEDP (AREF (lface
, i
)))
3949 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
3953 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
3955 doc
: /* Return an alist of frame-local faces defined on FRAME.
3956 For internal use only. */)
3959 return decode_live_frame (frame
)->face_alist
;
3963 /* Return a hash code for Lisp string STRING with case ignored. Used
3964 below in computing a hash value for a Lisp face. */
3967 hash_string_case_insensitive (Lisp_Object string
)
3969 const unsigned char *s
;
3971 eassert (STRINGP (string
));
3972 for (s
= SDATA (string
); *s
; ++s
)
3973 hash
= (hash
<< 1) ^ c_tolower (*s
);
3978 /* Return a hash code for face attribute vector V. */
3981 lface_hash (Lisp_Object
*v
)
3983 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
3984 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
3985 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
3986 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
3987 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
3988 ^ XHASH (v
[LFACE_SLANT_INDEX
])
3989 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
3990 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
3994 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
3995 considering charsets/registries). They do if they specify the same
3996 family, point size, weight, width, slant, and font. Both
3997 LFACE1 and LFACE2 must be fully-specified. */
4000 lface_same_font_attributes_p (Lisp_Object
*lface1
, Lisp_Object
*lface2
)
4002 eassert (lface_fully_specified_p (lface1
)
4003 && lface_fully_specified_p (lface2
));
4004 return (xstrcasecmp (SSDATA (lface1
[LFACE_FAMILY_INDEX
]),
4005 SSDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4006 && xstrcasecmp (SSDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4007 SSDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4008 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4009 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4010 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4011 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4012 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4013 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4014 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4015 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4016 && ! xstrcasecmp (SSDATA (lface1
[LFACE_FONTSET_INDEX
]),
4017 SSDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4023 /***********************************************************************
4025 ***********************************************************************/
4027 /* Allocate and return a new realized face for Lisp face attribute
4030 static struct face
*
4031 make_realized_face (Lisp_Object
*attr
)
4033 struct face
*face
= xzalloc (sizeof *face
);
4034 face
->ascii_face
= face
;
4035 memcpy (face
->lface
, attr
, sizeof face
->lface
);
4040 /* Free realized face FACE, including its X resources. FACE may
4044 free_realized_face (struct frame
*f
, struct face
*face
)
4048 #ifdef HAVE_WINDOW_SYSTEM
4049 if (FRAME_WINDOW_P (f
))
4051 /* Free fontset of FACE if it is ASCII face. */
4052 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4053 free_face_fontset (f
, face
);
4058 font_done_for_face (f
, face
);
4059 x_free_gc (f
, face
->gc
);
4064 free_face_colors (f
, face
);
4065 x_destroy_bitmap (f
, face
->stipple
);
4067 #endif /* HAVE_WINDOW_SYSTEM */
4074 /* Prepare face FACE for subsequent display on frame F. This
4075 allocated GCs if they haven't been allocated yet or have been freed
4076 by clearing the face cache. */
4079 prepare_face_for_display (struct frame
*f
, struct face
*face
)
4081 #ifdef HAVE_WINDOW_SYSTEM
4082 eassert (FRAME_WINDOW_P (f
));
4087 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4089 xgcv
.foreground
= face
->foreground
;
4090 xgcv
.background
= face
->background
;
4091 #ifdef HAVE_X_WINDOWS
4092 xgcv
.graphics_exposures
= False
;
4096 #ifdef HAVE_X_WINDOWS
4099 xgcv
.fill_style
= FillOpaqueStippled
;
4100 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4101 mask
|= GCFillStyle
| GCStipple
;
4104 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4106 font_prepare_for_face (f
, face
);
4109 #endif /* HAVE_WINDOW_SYSTEM */
4113 /* Returns the `distance' between the colors X and Y. */
4116 color_distance (XColor
*x
, XColor
*y
)
4118 /* This formula is from a paper titled `Colour metric' by Thiadmer Riemersma.
4119 Quoting from that paper:
4121 This formula has results that are very close to L*u*v* (with the
4122 modified lightness curve) and, more importantly, it is a more even
4123 algorithm: it does not have a range of colors where it suddenly
4124 gives far from optimal results.
4126 See <http://www.compuphase.com/cmetric.htm> for more info. */
4128 long r
= (x
->red
- y
->red
) >> 8;
4129 long g
= (x
->green
- y
->green
) >> 8;
4130 long b
= (x
->blue
- y
->blue
) >> 8;
4131 long r_mean
= (x
->red
+ y
->red
) >> 9;
4134 (((512 + r_mean
) * r
* r
) >> 8)
4136 + (((767 - r_mean
) * b
* b
) >> 8);
4140 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4141 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4142 COLOR1 and COLOR2 may be either strings containing the color name,
4143 or lists of the form (RED GREEN BLUE).
4144 If FRAME is unspecified or nil, the current frame is used. */)
4145 (Lisp_Object color1
, Lisp_Object color2
, Lisp_Object frame
)
4147 struct frame
*f
= decode_live_frame (frame
);
4148 XColor cdef1
, cdef2
;
4150 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4151 && !(STRINGP (color1
) && defined_color (f
, SSDATA (color1
), &cdef1
, 0)))
4152 signal_error ("Invalid color", color1
);
4153 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4154 && !(STRINGP (color2
) && defined_color (f
, SSDATA (color2
), &cdef2
, 0)))
4155 signal_error ("Invalid color", color2
);
4157 return make_number (color_distance (&cdef1
, &cdef2
));
4161 /***********************************************************************
4163 ***********************************************************************/
4165 /* Return a new face cache for frame F. */
4167 static struct face_cache
*
4168 make_face_cache (struct frame
*f
)
4170 struct face_cache
*c
;
4173 c
= xzalloc (sizeof *c
);
4174 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4175 c
->buckets
= xzalloc (size
);
4177 c
->faces_by_id
= xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4179 c
->menu_face_changed_p
= menu_face_changed_default
;
4184 /* Clear out all graphics contexts for all realized faces, except for
4185 the basic faces. This should be done from time to time just to avoid
4186 keeping too many graphics contexts that are no longer needed. */
4189 clear_face_gcs (struct face_cache
*c
)
4191 if (c
&& FRAME_WINDOW_P (c
->f
))
4193 #ifdef HAVE_WINDOW_SYSTEM
4195 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4197 struct face
*face
= c
->faces_by_id
[i
];
4198 if (face
&& face
->gc
)
4202 font_done_for_face (c
->f
, face
);
4203 x_free_gc (c
->f
, face
->gc
);
4208 #endif /* HAVE_WINDOW_SYSTEM */
4213 /* Free all realized faces in face cache C, including basic faces.
4214 C may be null. If faces are freed, make sure the frame's current
4215 matrix is marked invalid, so that a display caused by an expose
4216 event doesn't try to use faces we destroyed. */
4219 free_realized_faces (struct face_cache
*c
)
4224 struct frame
*f
= c
->f
;
4226 /* We must block input here because we can't process X events
4227 safely while only some faces are freed, or when the frame's
4228 current matrix still references freed faces. */
4231 for (i
= 0; i
< c
->used
; ++i
)
4233 free_realized_face (f
, c
->faces_by_id
[i
]);
4234 c
->faces_by_id
[i
] = NULL
;
4238 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4239 memset (c
->buckets
, 0, size
);
4241 /* Must do a thorough redisplay the next time. Mark current
4242 matrices as invalid because they will reference faces freed
4243 above. This function is also called when a frame is
4244 destroyed. In this case, the root window of F is nil. */
4245 if (WINDOWP (f
->root_window
))
4247 clear_current_matrices (f
);
4248 ++windows_or_buffers_changed
;
4256 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4257 This is done after attributes of a named face have been changed,
4258 because we can't tell which realized faces depend on that face. */
4261 free_all_realized_faces (Lisp_Object frame
)
4266 FOR_EACH_FRAME (rest
, frame
)
4267 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4270 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4274 /* Free face cache C and faces in it, including their X resources. */
4277 free_face_cache (struct face_cache
*c
)
4281 free_realized_faces (c
);
4283 xfree (c
->faces_by_id
);
4289 /* Cache realized face FACE in face cache C. HASH is the hash value
4290 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4291 FACE), insert the new face to the beginning of the collision list
4292 of the face hash table of C. Otherwise, add the new face to the
4293 end of the collision list. This way, lookup_face can quickly find
4294 that a requested face is not cached. */
4297 cache_face (struct face_cache
*c
, struct face
*face
, unsigned int hash
)
4299 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4303 if (face
->ascii_face
!= face
)
4305 struct face
*last
= c
->buckets
[i
];
4316 c
->buckets
[i
] = face
;
4317 face
->prev
= face
->next
= NULL
;
4323 face
->next
= c
->buckets
[i
];
4325 face
->next
->prev
= face
;
4326 c
->buckets
[i
] = face
;
4329 /* Find a free slot in C->faces_by_id and use the index of the free
4330 slot as FACE->id. */
4331 for (i
= 0; i
< c
->used
; ++i
)
4332 if (c
->faces_by_id
[i
] == NULL
)
4337 /* Check that FACE got a unique id. */
4342 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4343 for (face1
= c
->buckets
[j
]; face1
; face1
= face1
->next
)
4349 #endif /* GLYPH_DEBUG */
4351 /* Maybe enlarge C->faces_by_id. */
4354 if (c
->used
== c
->size
)
4355 c
->faces_by_id
= xpalloc (c
->faces_by_id
, &c
->size
, 1, MAX_FACE_ID
,
4356 sizeof *c
->faces_by_id
);
4360 c
->faces_by_id
[i
] = face
;
4364 /* Remove face FACE from cache C. */
4367 uncache_face (struct face_cache
*c
, struct face
*face
)
4369 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4372 face
->prev
->next
= face
->next
;
4374 c
->buckets
[i
] = face
->next
;
4377 face
->next
->prev
= face
->prev
;
4379 c
->faces_by_id
[face
->id
] = NULL
;
4380 if (face
->id
== c
->used
)
4385 /* Look up a realized face with face attributes ATTR in the face cache
4386 of frame F. The face will be used to display ASCII characters.
4387 Value is the ID of the face found. If no suitable face is found,
4388 realize a new one. */
4391 lookup_face (struct frame
*f
, Lisp_Object
*attr
)
4393 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4398 eassert (cache
!= NULL
);
4399 check_lface_attrs (attr
);
4401 /* Look up ATTR in the face cache. */
4402 hash
= lface_hash (attr
);
4403 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4405 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4407 if (face
->ascii_face
!= face
)
4409 /* There's no more ASCII face. */
4413 if (face
->hash
== hash
4414 && lface_equal_p (face
->lface
, attr
))
4418 /* If not found, realize a new face. */
4420 face
= realize_face (cache
, attr
, -1);
4423 eassert (face
== FACE_FROM_ID (f
, face
->id
));
4424 #endif /* GLYPH_DEBUG */
4429 #ifdef HAVE_WINDOW_SYSTEM
4430 /* Look up a realized face that has the same attributes as BASE_FACE
4431 except for the font in the face cache of frame F. If FONT-OBJECT
4432 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4433 the face has no font. Value is the ID of the face found. If no
4434 suitable face is found, realize a new one. */
4437 face_for_font (struct frame
*f
, Lisp_Object font_object
, struct face
*base_face
)
4439 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4444 eassert (cache
!= NULL
);
4445 base_face
= base_face
->ascii_face
;
4446 hash
= lface_hash (base_face
->lface
);
4447 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4449 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4451 if (face
->ascii_face
== face
)
4453 if (face
->ascii_face
== base_face
4454 && face
->font
== (NILP (font_object
) ? NULL
4455 : XFONT_OBJECT (font_object
))
4456 && lface_equal_p (face
->lface
, base_face
->lface
))
4460 /* If not found, realize a new face. */
4461 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4464 #endif /* HAVE_WINDOW_SYSTEM */
4466 /* Return the face id of the realized face for named face SYMBOL on
4467 frame F suitable for displaying ASCII characters. Value is -1 if
4468 the face couldn't be determined, which might happen if the default
4469 face isn't realized and cannot be realized. */
4472 lookup_named_face (struct frame
*f
, Lisp_Object symbol
, int signal_p
)
4474 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4475 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4476 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4478 if (default_face
== NULL
)
4480 if (!realize_basic_faces (f
))
4482 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4483 if (default_face
== NULL
)
4484 emacs_abort (); /* realize_basic_faces must have set it up */
4487 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4490 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4491 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4493 return lookup_face (f
, attrs
);
4497 /* Return the display face-id of the basic face whose canonical face-id
4498 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4499 basic face has bee remapped via Vface_remapping_alist. This function is
4500 conservative: if something goes wrong, it will simply return FACE_ID
4501 rather than signal an error. */
4504 lookup_basic_face (struct frame
*f
, int face_id
)
4506 Lisp_Object name
, mapping
;
4507 int remapped_face_id
;
4509 if (NILP (Vface_remapping_alist
))
4510 return face_id
; /* Nothing to do. */
4514 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4515 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4516 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4517 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4518 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4519 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4520 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4521 case BORDER_FACE_ID
: name
= Qborder
; break;
4522 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4523 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4524 case MENU_FACE_ID
: name
= Qmenu
; break;
4527 emacs_abort (); /* the caller is supposed to pass us a basic face id */
4530 /* Do a quick scan through Vface_remapping_alist, and return immediately
4531 if there is no remapping for face NAME. This is just an optimization
4532 for the very common no-remapping case. */
4533 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4535 return face_id
; /* Give up. */
4537 /* If there is a remapping entry, lookup the face using NAME, which will
4538 handle the remapping too. */
4539 remapped_face_id
= lookup_named_face (f
, name
, 0);
4540 if (remapped_face_id
< 0)
4541 return face_id
; /* Give up. */
4543 return remapped_face_id
;
4547 /* Return a face for charset ASCII that is like the face with id
4548 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4549 STEPS < 0 means larger. Value is the id of the face. */
4552 smaller_face (struct frame
*f
, int face_id
, int steps
)
4554 #ifdef HAVE_WINDOW_SYSTEM
4556 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4557 int pt
, last_pt
, last_height
;
4560 struct face
*new_face
;
4562 /* If not called for an X frame, just return the original face. */
4563 if (FRAME_TERMCAP_P (f
))
4566 /* Try in increments of 1/2 pt. */
4567 delta
= steps
< 0 ? 5 : -5;
4568 steps
= eabs (steps
);
4570 face
= FACE_FROM_ID (f
, face_id
);
4571 memcpy (attrs
, face
->lface
, sizeof attrs
);
4572 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4573 new_face_id
= face_id
;
4574 last_height
= FONT_HEIGHT (face
->font
);
4578 /* Give up if we cannot find a font within 10pt. */
4579 && eabs (last_pt
- pt
) < 100)
4581 /* Look up a face for a slightly smaller/larger font. */
4583 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4584 new_face_id
= lookup_face (f
, attrs
);
4585 new_face
= FACE_FROM_ID (f
, new_face_id
);
4587 /* If height changes, count that as one step. */
4588 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4589 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4592 last_height
= FONT_HEIGHT (new_face
->font
);
4599 #else /* not HAVE_WINDOW_SYSTEM */
4603 #endif /* not HAVE_WINDOW_SYSTEM */
4607 /* Return a face for charset ASCII that is like the face with id
4608 FACE_ID on frame F, but has height HEIGHT. */
4611 face_with_height (struct frame
*f
, int face_id
, int height
)
4613 #ifdef HAVE_WINDOW_SYSTEM
4615 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4617 if (FRAME_TERMCAP_P (f
)
4621 face
= FACE_FROM_ID (f
, face_id
);
4622 memcpy (attrs
, face
->lface
, sizeof attrs
);
4623 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4624 font_clear_prop (attrs
, FONT_SIZE_INDEX
);
4625 face_id
= lookup_face (f
, attrs
);
4626 #endif /* HAVE_WINDOW_SYSTEM */
4632 /* Return the face id of the realized face for named face SYMBOL on
4633 frame F suitable for displaying ASCII characters, and use
4634 attributes of the face FACE_ID for attributes that aren't
4635 completely specified by SYMBOL. This is like lookup_named_face,
4636 except that the default attributes come from FACE_ID, not from the
4637 default face. FACE_ID is assumed to be already realized. */
4640 lookup_derived_face (struct frame
*f
, Lisp_Object symbol
, int face_id
,
4643 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4644 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4645 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4650 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4653 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
4654 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4655 return lookup_face (f
, attrs
);
4658 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4659 Sface_attributes_as_vector
, 1, 1, 0,
4660 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4664 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4666 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4673 /***********************************************************************
4674 Face capability testing
4675 ***********************************************************************/
4678 /* If the distance (as returned by color_distance) between two colors is
4679 less than this, then they are considered the same, for determining
4680 whether a color is supported or not. The range of values is 0-65535. */
4682 #define TTY_SAME_COLOR_THRESHOLD 10000
4684 #ifdef HAVE_WINDOW_SYSTEM
4686 /* Return non-zero if all the face attributes in ATTRS are supported
4687 on the window-system frame F.
4689 The definition of `supported' is somewhat heuristic, but basically means
4690 that a face containing all the attributes in ATTRS, when merged with the
4691 default face for display, can be represented in a way that's
4693 \(1) different in appearance than the default face, and
4694 \(2) `close in spirit' to what the attributes specify, if not exact. */
4697 x_supports_face_attributes_p (struct frame
*f
,
4698 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4699 struct face
*def_face
)
4701 Lisp_Object
*def_attrs
= def_face
->lface
;
4703 /* Check that other specified attributes are different that the default
4705 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
4706 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
4707 def_attrs
[LFACE_UNDERLINE_INDEX
]))
4708 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
4709 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
4710 def_attrs
[LFACE_INVERSE_INDEX
]))
4711 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
4712 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
4713 def_attrs
[LFACE_FOREGROUND_INDEX
]))
4714 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
4715 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
4716 def_attrs
[LFACE_BACKGROUND_INDEX
]))
4717 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4718 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
4719 def_attrs
[LFACE_STIPPLE_INDEX
]))
4720 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4721 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
4722 def_attrs
[LFACE_OVERLINE_INDEX
]))
4723 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4724 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
4725 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
4726 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
4727 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
4728 def_attrs
[LFACE_BOX_INDEX
])))
4731 /* Check font-related attributes, as those are the most commonly
4732 "unsupported" on a window-system (because of missing fonts). */
4733 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4734 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4735 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4736 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
4737 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
4738 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
4742 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
4745 memcpy (merged_attrs
, def_attrs
, sizeof merged_attrs
);
4747 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
4749 face_id
= lookup_face (f
, merged_attrs
);
4750 face
= FACE_FROM_ID (f
, face_id
);
4753 error ("Cannot make face");
4755 /* If the font is the same, or no font is found, then not
4757 if (face
->font
== def_face
->font
4760 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
4761 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
4765 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
4766 || face
->font
->driver
->case_sensitive
)
4768 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
4769 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
4770 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
4771 s2
, make_number (0), Qnil
, Qt
), Qt
))
4777 /* Everything checks out, this face is supported. */
4781 #endif /* HAVE_WINDOW_SYSTEM */
4783 /* Return non-zero if all the face attributes in ATTRS are supported
4786 The definition of `supported' is somewhat heuristic, but basically means
4787 that a face containing all the attributes in ATTRS, when merged
4788 with the default face for display, can be represented in a way that's
4790 \(1) different in appearance than the default face, and
4791 \(2) `close in spirit' to what the attributes specify, if not exact.
4793 Point (2) implies that a `:weight black' attribute will be satisfied
4794 by any terminal that can display bold, and a `:foreground "yellow"' as
4795 long as the terminal can display a yellowish color, but `:slant italic'
4796 will _not_ be satisfied by the tty display code's automatic
4797 substitution of a `dim' face for italic. */
4800 tty_supports_face_attributes_p (struct frame
*f
,
4801 Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
4802 struct face
*def_face
)
4805 Lisp_Object val
, fg
, bg
;
4806 XColor fg_tty_color
, fg_std_color
;
4807 XColor bg_tty_color
, bg_std_color
;
4808 unsigned test_caps
= 0;
4809 Lisp_Object
*def_attrs
= def_face
->lface
;
4811 /* First check some easy-to-check stuff; ttys support none of the
4812 following attributes, so we can just return false if any are requested
4813 (even if `nominal' values are specified, we should still return false,
4814 as that will be the same value that the default face uses). We
4815 consider :slant unsupportable on ttys, even though the face code
4816 actually `fakes' them using a dim attribute if possible. This is
4817 because the faked result is too different from what the face
4819 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
4820 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
4821 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
4822 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
4823 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
4824 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
4825 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
4826 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
]))
4829 /* Test for terminal `capabilities' (non-color character attributes). */
4831 /* font weight (bold/dim) */
4832 val
= attrs
[LFACE_WEIGHT_INDEX
];
4833 if (!UNSPECIFIEDP (val
)
4834 && (weight
= FONT_WEIGHT_NAME_NUMERIC (val
), weight
>= 0))
4836 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
4840 if (def_weight
> 100)
4841 return 0; /* same as default */
4842 test_caps
= TTY_CAP_BOLD
;
4844 else if (weight
< 100)
4846 if (def_weight
< 100)
4847 return 0; /* same as default */
4848 test_caps
= TTY_CAP_DIM
;
4850 else if (def_weight
== 100)
4851 return 0; /* same as default */
4855 val
= attrs
[LFACE_SLANT_INDEX
];
4856 if (!UNSPECIFIEDP (val
)
4857 && (slant
= FONT_SLANT_NAME_NUMERIC (val
), slant
>= 0))
4859 int def_slant
= FONT_SLANT_NAME_NUMERIC (def_attrs
[LFACE_SLANT_INDEX
]);
4860 if (slant
== 100 || slant
== def_slant
)
4861 return 0; /* same as default */
4863 test_caps
|= TTY_CAP_ITALIC
;
4867 val
= attrs
[LFACE_UNDERLINE_INDEX
];
4868 if (!UNSPECIFIEDP (val
))
4871 return 0; /* ttys can't use colored underlines */
4872 else if (EQ (CAR_SAFE (val
), QCstyle
) && EQ (CAR_SAFE (CDR_SAFE (val
)), Qwave
))
4873 return 0; /* ttys can't use wave underlines */
4874 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
4875 return 0; /* same as default */
4877 test_caps
|= TTY_CAP_UNDERLINE
;
4881 val
= attrs
[LFACE_INVERSE_INDEX
];
4882 if (!UNSPECIFIEDP (val
))
4884 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
4885 return 0; /* same as default */
4887 test_caps
|= TTY_CAP_INVERSE
;
4891 /* Color testing. */
4893 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
4894 we use them when calling `tty_capable_p' below, even if the face
4895 specifies no colors. */
4896 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
4897 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
4899 /* Check if foreground color is close enough. */
4900 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
4903 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
4905 if (face_attr_equal_p (fg
, def_fg
))
4906 return 0; /* same as default */
4907 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
4908 return 0; /* not a valid color */
4909 else if (color_distance (&fg_tty_color
, &fg_std_color
)
4910 > TTY_SAME_COLOR_THRESHOLD
)
4911 return 0; /* displayed color is too different */
4913 /* Make sure the color is really different than the default. */
4915 XColor def_fg_color
;
4916 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
4917 && (color_distance (&fg_tty_color
, &def_fg_color
)
4918 <= TTY_SAME_COLOR_THRESHOLD
))
4923 /* Check if background color is close enough. */
4924 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
4927 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
4929 if (face_attr_equal_p (bg
, def_bg
))
4930 return 0; /* same as default */
4931 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
4932 return 0; /* not a valid color */
4933 else if (color_distance (&bg_tty_color
, &bg_std_color
)
4934 > TTY_SAME_COLOR_THRESHOLD
)
4935 return 0; /* displayed color is too different */
4937 /* Make sure the color is really different than the default. */
4939 XColor def_bg_color
;
4940 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
4941 && (color_distance (&bg_tty_color
, &def_bg_color
)
4942 <= TTY_SAME_COLOR_THRESHOLD
))
4947 /* If both foreground and background are requested, see if the
4948 distance between them is OK. We just check to see if the distance
4949 between the tty's foreground and background is close enough to the
4950 distance between the standard foreground and background. */
4951 if (STRINGP (fg
) && STRINGP (bg
))
4954 = (color_distance (&fg_std_color
, &bg_std_color
)
4955 - color_distance (&fg_tty_color
, &bg_tty_color
));
4956 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
4957 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
4962 /* See if the capabilities we selected above are supported, with the
4964 if (test_caps
!= 0 &&
4965 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
,
4966 bg_tty_color
.pixel
))
4970 /* Hmmm, everything checks out, this terminal must support this face. */
4975 DEFUN ("display-supports-face-attributes-p",
4976 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
4978 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
4979 The optional argument DISPLAY can be a display name, a frame, or
4980 nil (meaning the selected frame's display).
4982 The definition of `supported' is somewhat heuristic, but basically means
4983 that a face containing all the attributes in ATTRIBUTES, when merged
4984 with the default face for display, can be represented in a way that's
4986 \(1) different in appearance than the default face, and
4987 \(2) `close in spirit' to what the attributes specify, if not exact.
4989 Point (2) implies that a `:weight black' attribute will be satisfied by
4990 any display that can display bold, and a `:foreground \"yellow\"' as long
4991 as it can display a yellowish color, but `:slant italic' will _not_ be
4992 satisfied by the tty display code's automatic substitution of a `dim'
4993 face for italic. */)
4994 (Lisp_Object attributes
, Lisp_Object display
)
4996 int supports
= 0, i
;
4999 struct face
*def_face
;
5000 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5002 if (noninteractive
|| !initialized
)
5003 /* We may not be able to access low-level face information in batch
5004 mode, or before being dumped, and this function is not going to
5005 be very useful in those cases anyway, so just give up. */
5009 frame
= selected_frame
;
5010 else if (FRAMEP (display
))
5014 /* Find any frame on DISPLAY. */
5018 FOR_EACH_FRAME (tail
, frame
)
5019 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5020 XFRAME (frame
)->param_alist
)),
5025 CHECK_LIVE_FRAME (frame
);
5028 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5029 attrs
[i
] = Qunspecified
;
5030 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5032 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5033 if (def_face
== NULL
)
5035 if (! realize_basic_faces (f
))
5036 error ("Cannot realize default face");
5037 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5038 if (def_face
== NULL
)
5039 emacs_abort (); /* realize_basic_faces must have set it up */
5042 /* Dispatch to the appropriate handler. */
5043 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5044 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5045 #ifdef HAVE_WINDOW_SYSTEM
5047 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5050 return supports
? Qt
: Qnil
;
5054 /***********************************************************************
5056 ***********************************************************************/
5058 DEFUN ("internal-set-font-selection-order",
5059 Finternal_set_font_selection_order
,
5060 Sinternal_set_font_selection_order
, 1, 1, 0,
5061 doc
: /* Set font selection order for face font selection to ORDER.
5062 ORDER must be a list of length 4 containing the symbols `:width',
5063 `:height', `:weight', and `:slant'. Face attributes appearing
5064 first in ORDER are matched first, e.g. if `:height' appears before
5065 `:weight' in ORDER, font selection first tries to find a font with
5066 a suitable height, and then tries to match the font weight.
5072 int indices
[DIM (font_sort_order
)];
5075 memset (indices
, 0, sizeof indices
);
5079 CONSP (list
) && i
< DIM (indices
);
5080 list
= XCDR (list
), ++i
)
5082 Lisp_Object attr
= XCAR (list
);
5085 if (EQ (attr
, QCwidth
))
5087 else if (EQ (attr
, QCheight
))
5088 xlfd
= XLFD_POINT_SIZE
;
5089 else if (EQ (attr
, QCweight
))
5091 else if (EQ (attr
, QCslant
))
5096 if (indices
[i
] != 0)
5101 if (!NILP (list
) || i
!= DIM (indices
))
5102 signal_error ("Invalid font sort order", order
);
5103 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5104 if (indices
[i
] == 0)
5105 signal_error ("Invalid font sort order", order
);
5107 if (memcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5109 memcpy (font_sort_order
, indices
, sizeof font_sort_order
);
5110 free_all_realized_faces (Qnil
);
5113 font_update_sort_order (font_sort_order
);
5119 DEFUN ("internal-set-alternative-font-family-alist",
5120 Finternal_set_alternative_font_family_alist
,
5121 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5122 doc
: /* Define alternative font families to try in face font selection.
5123 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5124 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5125 be found. Value is ALIST. */)
5128 Lisp_Object entry
, tail
, tail2
;
5131 alist
= Fcopy_sequence (alist
);
5132 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5134 entry
= XCAR (tail
);
5136 entry
= Fcopy_sequence (entry
);
5137 XSETCAR (tail
, entry
);
5138 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5139 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5142 Vface_alternative_font_family_alist
= alist
;
5143 free_all_realized_faces (Qnil
);
5148 DEFUN ("internal-set-alternative-font-registry-alist",
5149 Finternal_set_alternative_font_registry_alist
,
5150 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5151 doc
: /* Define alternative font registries to try in face font selection.
5152 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5153 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5154 be found. Value is ALIST. */)
5157 Lisp_Object entry
, tail
, tail2
;
5160 alist
= Fcopy_sequence (alist
);
5161 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5163 entry
= XCAR (tail
);
5165 entry
= Fcopy_sequence (entry
);
5166 XSETCAR (tail
, entry
);
5167 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5168 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5170 Vface_alternative_font_registry_alist
= alist
;
5171 free_all_realized_faces (Qnil
);
5176 #ifdef HAVE_WINDOW_SYSTEM
5178 /* Return the fontset id of the base fontset name or alias name given
5179 by the fontset attribute of ATTRS. Value is -1 if the fontset
5180 attribute of ATTRS doesn't name a fontset. */
5183 face_fontset (Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5187 name
= attrs
[LFACE_FONTSET_INDEX
];
5188 if (!STRINGP (name
))
5190 return fs_query_fontset (name
, 0);
5193 #endif /* HAVE_WINDOW_SYSTEM */
5197 /***********************************************************************
5199 ***********************************************************************/
5201 /* Realize basic faces on frame F. Value is zero if frame parameters
5202 of F don't contain enough information needed to realize the default
5206 realize_basic_faces (struct frame
*f
)
5209 ptrdiff_t count
= SPECPDL_INDEX ();
5211 /* Block input here so that we won't be surprised by an X expose
5212 event, for instance, without having the faces set up. */
5214 specbind (Qscalable_fonts_allowed
, Qt
);
5216 if (realize_default_face (f
))
5218 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5219 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5220 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5221 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5222 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5223 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5224 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5225 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5226 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5227 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5228 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5230 /* Reflect changes in the `menu' face in menu bars. */
5231 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5233 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5234 #ifdef USE_X_TOOLKIT
5235 if (FRAME_WINDOW_P (f
))
5236 x_update_menu_appearance (f
);
5243 unbind_to (count
, Qnil
);
5249 /* Realize the default face on frame F. If the face is not fully
5250 specified, make it fully-specified. Attributes of the default face
5251 that are not explicitly specified are taken from frame parameters. */
5254 realize_default_face (struct frame
*f
)
5256 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5258 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5261 /* If the `default' face is not yet known, create it. */
5262 lface
= lface_from_face_name (f
, Qdefault
, 0);
5266 XSETFRAME (frame
, f
);
5267 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5270 #ifdef HAVE_WINDOW_SYSTEM
5271 if (FRAME_WINDOW_P (f
))
5273 Lisp_Object font_object
;
5275 XSETFONT (font_object
, FRAME_FONT (f
));
5276 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5277 ASET (lface
, LFACE_FONTSET_INDEX
, fontset_name (FRAME_FONTSET (f
)));
5278 f
->default_face_done_p
= 1;
5280 #endif /* HAVE_WINDOW_SYSTEM */
5282 if (!FRAME_WINDOW_P (f
))
5284 ASET (lface
, LFACE_FAMILY_INDEX
, build_string ("default"));
5285 ASET (lface
, LFACE_FOUNDRY_INDEX
, LFACE_FAMILY (lface
));
5286 ASET (lface
, LFACE_SWIDTH_INDEX
, Qnormal
);
5287 ASET (lface
, LFACE_HEIGHT_INDEX
, make_number (1));
5288 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5289 ASET (lface
, LFACE_WEIGHT_INDEX
, Qnormal
);
5290 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5291 ASET (lface
, LFACE_SLANT_INDEX
, Qnormal
);
5292 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5293 ASET (lface
, LFACE_FONTSET_INDEX
, Qnil
);
5296 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5297 ASET (lface
, LFACE_UNDERLINE_INDEX
, Qnil
);
5299 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5300 ASET (lface
, LFACE_OVERLINE_INDEX
, Qnil
);
5302 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5303 ASET (lface
, LFACE_STRIKE_THROUGH_INDEX
, Qnil
);
5305 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5306 ASET (lface
, LFACE_BOX_INDEX
, Qnil
);
5308 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5309 ASET (lface
, LFACE_INVERSE_INDEX
, Qnil
);
5311 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5313 /* This function is called so early that colors are not yet
5314 set in the frame parameter list. */
5315 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5317 if (CONSP (color
) && STRINGP (XCDR (color
)))
5318 ASET (lface
, LFACE_FOREGROUND_INDEX
, XCDR (color
));
5319 else if (FRAME_WINDOW_P (f
))
5321 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5322 ASET (lface
, LFACE_FOREGROUND_INDEX
, build_string (unspecified_fg
));
5327 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5329 /* This function is called so early that colors are not yet
5330 set in the frame parameter list. */
5331 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5332 if (CONSP (color
) && STRINGP (XCDR (color
)))
5333 ASET (lface
, LFACE_BACKGROUND_INDEX
, XCDR (color
));
5334 else if (FRAME_WINDOW_P (f
))
5336 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5337 ASET (lface
, LFACE_BACKGROUND_INDEX
, build_string (unspecified_bg
));
5342 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5343 ASET (lface
, LFACE_STIPPLE_INDEX
, Qnil
);
5345 /* Realize the face; it must be fully-specified now. */
5346 eassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5347 check_lface (lface
);
5348 memcpy (attrs
, XVECTOR (lface
)->contents
, sizeof attrs
);
5349 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5351 #ifdef HAVE_WINDOW_SYSTEM
5352 #ifdef HAVE_X_WINDOWS
5353 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5355 /* This can happen when making a frame on a display that does
5356 not support the default font. */
5360 /* Otherwise, the font specified for the frame was not
5361 acceptable as a font for the default face (perhaps because
5362 auto-scaled fonts are rejected), so we must adjust the frame
5364 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5366 #endif /* HAVE_X_WINDOWS */
5367 #endif /* HAVE_WINDOW_SYSTEM */
5372 /* Realize basic faces other than the default face in face cache C.
5373 SYMBOL is the face name, ID is the face id the realized face must
5374 have. The default face must have been realized already. */
5377 realize_named_face (struct frame
*f
, Lisp_Object symbol
, int id
)
5379 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5380 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5381 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5382 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5384 /* The default face must exist and be fully specified. */
5385 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5386 check_lface_attrs (attrs
);
5387 eassert (lface_fully_specified_p (attrs
));
5389 /* If SYMBOL isn't know as a face, create it. */
5393 XSETFRAME (frame
, f
);
5394 lface
= Finternal_make_lisp_face (symbol
, frame
);
5397 /* Merge SYMBOL's face with the default face. */
5398 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5399 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5401 /* Realize the face. */
5402 realize_face (c
, attrs
, id
);
5406 /* Realize the fully-specified face with attributes ATTRS in face
5407 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5408 non-negative, it is an ID of face to remove before caching the new
5409 face. Value is a pointer to the newly created realized face. */
5411 static struct face
*
5412 realize_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
],
5417 /* LFACE must be fully specified. */
5418 eassert (cache
!= NULL
);
5419 check_lface_attrs (attrs
);
5421 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5423 /* Remove the former face. */
5424 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5425 uncache_face (cache
, former_face
);
5426 free_realized_face (cache
->f
, former_face
);
5427 SET_FRAME_GARBAGED (cache
->f
);
5430 if (FRAME_WINDOW_P (cache
->f
))
5431 face
= realize_x_face (cache
, attrs
);
5432 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5433 face
= realize_tty_face (cache
, attrs
);
5434 else if (FRAME_INITIAL_P (cache
->f
))
5436 /* Create a dummy face. */
5437 face
= make_realized_face (attrs
);
5442 /* Insert the new face. */
5443 cache_face (cache
, face
, lface_hash (attrs
));
5448 #ifdef HAVE_WINDOW_SYSTEM
5449 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5450 same attributes as BASE_FACE except for the font on frame F.
5451 FONT-OBJECT may be nil, in which case, realized a face of
5454 static struct face
*
5455 realize_non_ascii_face (struct frame
*f
, Lisp_Object font_object
,
5456 struct face
*base_face
)
5458 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5461 face
= xmalloc (sizeof *face
);
5466 = (! NILP (font_object
)
5467 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5468 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5470 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5471 face
->colors_copied_bitwise_p
= 1;
5472 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5475 cache_face (cache
, face
, face
->hash
);
5479 #endif /* HAVE_WINDOW_SYSTEM */
5482 /* Realize the fully-specified face with attributes ATTRS in face
5483 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5484 the new face doesn't share font with the default face, a fontname
5485 is allocated from the heap and set in `font_name' of the new face,
5486 but it is not yet loaded here. Value is a pointer to the newly
5487 created realized face. */
5489 static struct face
*
5490 realize_x_face (struct face_cache
*cache
, Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5492 struct face
*face
= NULL
;
5493 #ifdef HAVE_WINDOW_SYSTEM
5494 struct face
*default_face
;
5496 Lisp_Object stipple
, underline
, overline
, strike_through
, box
;
5498 eassert (FRAME_WINDOW_P (cache
->f
));
5500 /* Allocate a new realized face. */
5501 face
= make_realized_face (attrs
);
5502 face
->ascii_face
= face
;
5506 /* Determine the font to use. Most of the time, the font will be
5507 the same as the font of the default face, so try that first. */
5508 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5510 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5512 face
->font
= default_face
->font
;
5514 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5518 /* If the face attribute ATTRS specifies a fontset, use it as
5519 the base of a new realized fontset. Otherwise, use the same
5520 base fontset as of the default face. The base determines
5521 registry and encoding of a font. It may also determine
5522 foundry and family. The other fields of font name pattern
5523 are constructed from ATTRS. */
5524 int fontset
= face_fontset (attrs
);
5526 /* If we are realizing the default face, ATTRS should specify a
5527 fontset. In other words, if FONTSET is -1, we are not
5528 realizing the default face, thus the default face should have
5529 already been realized. */
5533 fontset
= default_face
->fontset
;
5537 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5538 attrs
[LFACE_FONT_INDEX
]
5539 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5540 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5542 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5543 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5553 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5554 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5555 face
->overstrike
= 1;
5557 /* Load colors, and set remaining attributes. */
5559 load_face_colors (f
, face
, attrs
);
5562 box
= attrs
[LFACE_BOX_INDEX
];
5565 /* A simple box of line width 1 drawn in color given by
5567 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5569 face
->box
= FACE_SIMPLE_BOX
;
5570 face
->box_line_width
= 1;
5572 else if (INTEGERP (box
))
5574 /* Simple box of specified line width in foreground color of the
5576 eassert (XINT (box
) != 0);
5577 face
->box
= FACE_SIMPLE_BOX
;
5578 face
->box_line_width
= XINT (box
);
5579 face
->box_color
= face
->foreground
;
5580 face
->box_color_defaulted_p
= 1;
5582 else if (CONSP (box
))
5584 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5585 being one of `raised' or `sunken'. */
5586 face
->box
= FACE_SIMPLE_BOX
;
5587 face
->box_color
= face
->foreground
;
5588 face
->box_color_defaulted_p
= 1;
5589 face
->box_line_width
= 1;
5593 Lisp_Object keyword
, value
;
5595 keyword
= XCAR (box
);
5603 if (EQ (keyword
, QCline_width
))
5605 if (INTEGERP (value
) && XINT (value
) != 0)
5606 face
->box_line_width
= XINT (value
);
5608 else if (EQ (keyword
, QCcolor
))
5610 if (STRINGP (value
))
5612 face
->box_color
= load_color (f
, face
, value
,
5614 face
->use_box_color_for_shadows_p
= 1;
5617 else if (EQ (keyword
, QCstyle
))
5619 if (EQ (value
, Qreleased_button
))
5620 face
->box
= FACE_RAISED_BOX
;
5621 else if (EQ (value
, Qpressed_button
))
5622 face
->box
= FACE_SUNKEN_BOX
;
5627 /* Text underline, overline, strike-through. */
5629 underline
= attrs
[LFACE_UNDERLINE_INDEX
];
5630 if (EQ (underline
, Qt
))
5632 /* Use default color (same as foreground color). */
5633 face
->underline_p
= 1;
5634 face
->underline_type
= FACE_UNDER_LINE
;
5635 face
->underline_defaulted_p
= 1;
5636 face
->underline_color
= 0;
5638 else if (STRINGP (underline
))
5640 /* Use specified color. */
5641 face
->underline_p
= 1;
5642 face
->underline_type
= FACE_UNDER_LINE
;
5643 face
->underline_defaulted_p
= 0;
5644 face
->underline_color
5645 = load_color (f
, face
, underline
,
5646 LFACE_UNDERLINE_INDEX
);
5648 else if (NILP (underline
))
5650 face
->underline_p
= 0;
5651 face
->underline_defaulted_p
= 0;
5652 face
->underline_color
= 0;
5654 else if (CONSP (underline
))
5656 /* `(:color COLOR :style STYLE)'.
5657 STYLE being one of `line' or `wave'. */
5658 face
->underline_p
= 1;
5659 face
->underline_color
= 0;
5660 face
->underline_defaulted_p
= 1;
5661 face
->underline_type
= FACE_UNDER_LINE
;
5663 /* FIXME? This is also not robust about checking the precise form.
5664 See comments in Finternal_set_lisp_face_attribute. */
5665 while (CONSP (underline
))
5667 Lisp_Object keyword
, value
;
5669 keyword
= XCAR (underline
);
5670 underline
= XCDR (underline
);
5672 if (!CONSP (underline
))
5674 value
= XCAR (underline
);
5675 underline
= XCDR (underline
);
5677 if (EQ (keyword
, QCcolor
))
5679 if (EQ (value
, Qforeground_color
))
5681 face
->underline_defaulted_p
= 1;
5682 face
->underline_color
= 0;
5684 else if (STRINGP (value
))
5686 face
->underline_defaulted_p
= 0;
5687 face
->underline_color
= load_color (f
, face
, value
,
5688 LFACE_UNDERLINE_INDEX
);
5691 else if (EQ (keyword
, QCstyle
))
5693 if (EQ (value
, Qline
))
5694 face
->underline_type
= FACE_UNDER_LINE
;
5695 else if (EQ (value
, Qwave
))
5696 face
->underline_type
= FACE_UNDER_WAVE
;
5701 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5702 if (STRINGP (overline
))
5704 face
->overline_color
5705 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5706 LFACE_OVERLINE_INDEX
);
5707 face
->overline_p
= 1;
5709 else if (EQ (overline
, Qt
))
5711 face
->overline_color
= face
->foreground
;
5712 face
->overline_color_defaulted_p
= 1;
5713 face
->overline_p
= 1;
5716 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5717 if (STRINGP (strike_through
))
5719 face
->strike_through_color
5720 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5721 LFACE_STRIKE_THROUGH_INDEX
);
5722 face
->strike_through_p
= 1;
5724 else if (EQ (strike_through
, Qt
))
5726 face
->strike_through_color
= face
->foreground
;
5727 face
->strike_through_color_defaulted_p
= 1;
5728 face
->strike_through_p
= 1;
5731 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5732 if (!NILP (stipple
))
5733 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5734 #endif /* HAVE_WINDOW_SYSTEM */
5740 /* Map a specified color of face FACE on frame F to a tty color index.
5741 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5742 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5743 default foreground/background colors. */
5746 map_tty_color (struct frame
*f
, struct face
*face
,
5747 enum lface_attribute_index idx
, int *defaulted
)
5749 Lisp_Object frame
, color
, def
;
5750 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
5751 unsigned long default_pixel
=
5752 foreground_p
? FACE_TTY_DEFAULT_FG_COLOR
: FACE_TTY_DEFAULT_BG_COLOR
;
5753 unsigned long pixel
= default_pixel
;
5755 unsigned long default_other_pixel
=
5756 foreground_p
? FACE_TTY_DEFAULT_BG_COLOR
: FACE_TTY_DEFAULT_FG_COLOR
;
5759 eassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
5761 XSETFRAME (frame
, f
);
5762 color
= face
->lface
[idx
];
5766 && CONSP (Vtty_defined_color_alist
)
5767 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
5770 /* Associations in tty-defined-color-alist are of the form
5771 (NAME INDEX R G B). We need the INDEX part. */
5772 pixel
= XINT (XCAR (XCDR (def
)));
5775 if (pixel
== default_pixel
&& STRINGP (color
))
5777 pixel
= load_color (f
, face
, color
, idx
);
5780 /* If the foreground of the default face is the default color,
5781 use the foreground color defined by the frame. */
5782 if (FRAME_MSDOS_P (f
))
5784 if (pixel
== default_pixel
5785 || pixel
== FACE_TTY_DEFAULT_COLOR
)
5788 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5790 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5791 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5794 else if (pixel
== default_other_pixel
)
5797 pixel
= FRAME_BACKGROUND_PIXEL (f
);
5799 pixel
= FRAME_FOREGROUND_PIXEL (f
);
5800 face
->lface
[idx
] = tty_color_name (f
, pixel
);
5808 face
->foreground
= pixel
;
5810 face
->background
= pixel
;
5814 /* Realize the fully-specified face with attributes ATTRS in face
5815 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
5816 Value is a pointer to the newly created realized face. */
5818 static struct face
*
5819 realize_tty_face (struct face_cache
*cache
,
5820 Lisp_Object attrs
[LFACE_VECTOR_SIZE
])
5824 int face_colors_defaulted
= 0;
5825 struct frame
*f
= cache
->f
;
5827 /* Frame must be a termcap frame. */
5828 eassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
5830 /* Allocate a new realized face. */
5831 face
= make_realized_face (attrs
);
5833 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
5836 /* Map face attributes to TTY appearances. */
5837 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5838 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
5840 face
->tty_bold_p
= 1;
5842 face
->tty_italic_p
= 1;
5843 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5844 face
->tty_underline_p
= 1;
5845 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
5846 face
->tty_reverse_p
= 1;
5848 /* Map color names to color indices. */
5849 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
5850 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
5852 /* Swap colors if face is inverse-video. If the colors are taken
5853 from the frame colors, they are already inverted, since the
5854 frame-creation function calls x-handle-reverse-video. */
5855 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
5857 unsigned long tem
= face
->foreground
;
5858 face
->foreground
= face
->background
;
5859 face
->background
= tem
;
5862 if (tty_suppress_bold_inverse_default_colors_p
5864 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
5865 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
5866 face
->tty_bold_p
= 0;
5872 DEFUN ("tty-suppress-bold-inverse-default-colors",
5873 Ftty_suppress_bold_inverse_default_colors
,
5874 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
5875 doc
: /* Suppress/allow boldness of faces with inverse default colors.
5876 SUPPRESS non-nil means suppress it.
5877 This affects bold faces on TTYs whose foreground is the default background
5878 color of the display and whose background is the default foreground color.
5879 For such faces, the bold face attribute is ignored if this variable
5881 (Lisp_Object suppress
)
5883 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
5884 ++face_change_count
;
5890 /***********************************************************************
5892 ***********************************************************************/
5894 /* Return the ID of the face to use to display character CH with face
5895 property PROP on frame F in current_buffer. */
5898 compute_char_face (struct frame
*f
, int ch
, Lisp_Object prop
)
5902 if (NILP (BVAR (current_buffer
, enable_multibyte_characters
)))
5907 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5908 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
5912 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5913 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5914 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
5915 merge_face_ref (f
, prop
, attrs
, 1, 0);
5916 face_id
= lookup_face (f
, attrs
);
5922 /* Return the face ID associated with buffer position POS for
5923 displaying ASCII characters. Return in *ENDPTR the position at
5924 which a different face is needed, as far as text properties and
5925 overlays are concerned. W is a window displaying current_buffer.
5927 REGION_BEG, REGION_END delimit the region, so it can be
5930 LIMIT is a position not to scan beyond. That is to limit the time
5931 this function can take.
5933 If MOUSE is non-zero, use the character's mouse-face, not its face.
5935 BASE_FACE_ID, if non-negative, specifies a base face id to use
5936 instead of DEFAULT_FACE_ID.
5938 The face returned is suitable for displaying ASCII characters. */
5941 face_at_buffer_position (struct window
*w
, ptrdiff_t pos
,
5942 ptrdiff_t region_beg
, ptrdiff_t region_end
,
5943 ptrdiff_t *endptr
, ptrdiff_t limit
,
5944 int mouse
, int base_face_id
)
5946 struct frame
*f
= XFRAME (w
->frame
);
5947 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5948 Lisp_Object prop
, position
;
5949 ptrdiff_t i
, noverlays
;
5950 Lisp_Object
*overlay_vec
;
5952 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
5953 Lisp_Object limit1
, end
;
5954 struct face
*default_face
;
5956 /* W must display the current buffer. We could write this function
5957 to use the frame and buffer of W, but right now it doesn't. */
5958 /* eassert (XBUFFER (w->contents) == current_buffer); */
5960 XSETFASTINT (position
, pos
);
5963 if (pos
< region_beg
&& region_beg
< endpos
)
5964 endpos
= region_beg
;
5966 /* Get the `face' or `mouse_face' text property at POS, and
5967 determine the next position at which the property changes. */
5968 prop
= Fget_text_property (position
, propname
, w
->contents
);
5969 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
5970 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
5972 endpos
= XINT (end
);
5974 /* Look at properties from overlays. */
5976 ptrdiff_t next_overlay
;
5978 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
5979 if (next_overlay
< endpos
)
5980 endpos
= next_overlay
;
5988 if (base_face_id
>= 0)
5989 face_id
= base_face_id
;
5990 else if (NILP (Vface_remapping_alist
))
5991 face_id
= DEFAULT_FACE_ID
;
5993 face_id
= lookup_basic_face (f
, DEFAULT_FACE_ID
);
5995 default_face
= FACE_FROM_ID (f
, face_id
);
5998 /* Optimize common cases where we can use the default face. */
6001 && !(pos
>= region_beg
&& pos
< region_end
))
6002 return default_face
->id
;
6004 /* Begin with attributes from the default face. */
6005 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6007 /* Merge in attributes specified via text properties. */
6009 merge_face_ref (f
, prop
, attrs
, 1, 0);
6011 /* Now merge the overlay data. */
6012 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6013 for (i
= 0; i
< noverlays
; i
++)
6018 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6020 merge_face_ref (f
, prop
, attrs
, 1, 0);
6022 oend
= OVERLAY_END (overlay_vec
[i
]);
6023 oendpos
= OVERLAY_POSITION (oend
);
6024 if (oendpos
< endpos
)
6028 /* If in the region, merge in the region face. */
6029 if (pos
>= region_beg
&& pos
< region_end
)
6031 merge_named_face (f
, Qregion
, attrs
, 0);
6033 if (region_end
< endpos
)
6034 endpos
= region_end
;
6039 /* Look up a realized face with the given face attributes,
6040 or realize a new one for ASCII characters. */
6041 return lookup_face (f
, attrs
);
6044 /* Return the face ID at buffer position POS for displaying ASCII
6045 characters associated with overlay strings for overlay OVERLAY.
6047 Like face_at_buffer_position except for OVERLAY. Currently it
6048 simply disregards the `face' properties of all overlays. */
6051 face_for_overlay_string (struct window
*w
, ptrdiff_t pos
,
6052 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6053 ptrdiff_t *endptr
, ptrdiff_t limit
,
6054 int mouse
, Lisp_Object overlay
)
6056 struct frame
*f
= XFRAME (w
->frame
);
6057 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6058 Lisp_Object prop
, position
;
6060 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6061 Lisp_Object limit1
, end
;
6062 struct face
*default_face
;
6064 /* W must display the current buffer. We could write this function
6065 to use the frame and buffer of W, but right now it doesn't. */
6066 /* eassert (XBUFFER (w->contents) == current_buffer); */
6068 XSETFASTINT (position
, pos
);
6071 if (pos
< region_beg
&& region_beg
< endpos
)
6072 endpos
= region_beg
;
6074 /* Get the `face' or `mouse_face' text property at POS, and
6075 determine the next position at which the property changes. */
6076 prop
= Fget_text_property (position
, propname
, w
->contents
);
6077 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6078 end
= Fnext_single_property_change (position
, propname
, w
->contents
, limit1
);
6080 endpos
= XINT (end
);
6084 /* Optimize common case where we can use the default face. */
6086 && !(pos
>= region_beg
&& pos
< region_end
)
6087 && NILP (Vface_remapping_alist
))
6088 return DEFAULT_FACE_ID
;
6090 /* Begin with attributes from the default face. */
6091 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6092 memcpy (attrs
, default_face
->lface
, sizeof attrs
);
6094 /* Merge in attributes specified via text properties. */
6096 merge_face_ref (f
, prop
, attrs
, 1, 0);
6098 /* If in the region, merge in the region face. */
6099 if (pos
>= region_beg
&& pos
< region_end
)
6101 merge_named_face (f
, Qregion
, attrs
, 0);
6103 if (region_end
< endpos
)
6104 endpos
= region_end
;
6109 /* Look up a realized face with the given face attributes,
6110 or realize a new one for ASCII characters. */
6111 return lookup_face (f
, attrs
);
6115 /* Compute the face at character position POS in Lisp string STRING on
6116 window W, for ASCII characters.
6118 If STRING is an overlay string, it comes from position BUFPOS in
6119 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6120 not an overlay string. W must display the current buffer.
6121 REGION_BEG and REGION_END give the start and end positions of the
6122 region; both are -1 if no region is visible.
6124 BASE_FACE_ID is the id of a face to merge with. For strings coming
6125 from overlays or the `display' property it is the face at BUFPOS.
6127 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6129 Set *ENDPTR to the next position where to check for faces in
6130 STRING; -1 if the face is constant from POS to the end of the
6133 Value is the id of the face to use. The face returned is suitable
6134 for displaying ASCII characters. */
6137 face_at_string_position (struct window
*w
, Lisp_Object string
,
6138 ptrdiff_t pos
, ptrdiff_t bufpos
,
6139 ptrdiff_t region_beg
, ptrdiff_t region_end
,
6140 ptrdiff_t *endptr
, enum face_id base_face_id
,
6143 Lisp_Object prop
, position
, end
, limit
;
6144 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6145 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6146 struct face
*base_face
;
6147 bool multibyte_p
= STRING_MULTIBYTE (string
);
6148 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6150 /* Get the value of the face property at the current position within
6151 STRING. Value is nil if there is no face property. */
6152 XSETFASTINT (position
, pos
);
6153 prop
= Fget_text_property (position
, prop_name
, string
);
6155 /* Get the next position at which to check for faces. Value of end
6156 is nil if face is constant all the way to the end of the string.
6157 Otherwise it is a string position where to check faces next.
6158 Limit is the maximum position up to which to check for property
6159 changes in Fnext_single_property_change. Strings are usually
6160 short, so set the limit to the end of the string. */
6161 XSETFASTINT (limit
, SCHARS (string
));
6162 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6164 *endptr
= XFASTINT (end
);
6168 base_face
= FACE_FROM_ID (f
, base_face_id
);
6169 eassert (base_face
);
6171 /* Optimize the default case that there is no face property and we
6172 are not in the region. */
6174 && (base_face_id
!= DEFAULT_FACE_ID
6175 /* BUFPOS <= 0 means STRING is not an overlay string, so
6176 that the region doesn't have to be taken into account. */
6178 || bufpos
< region_beg
6179 || bufpos
>= region_end
)
6181 /* We can't realize faces for different charsets differently
6182 if we don't have fonts, so we can stop here if not working
6183 on a window-system frame. */
6184 || !FRAME_WINDOW_P (f
)
6185 || FACE_SUITABLE_FOR_ASCII_CHAR_P (base_face
, 0)))
6186 return base_face
->id
;
6188 /* Begin with attributes from the base face. */
6189 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6191 /* Merge in attributes specified via text properties. */
6193 merge_face_ref (f
, prop
, attrs
, 1, 0);
6195 /* If in the region, merge in the region face. */
6197 && bufpos
>= region_beg
6198 && bufpos
< region_end
)
6199 merge_named_face (f
, Qregion
, attrs
, 0);
6201 /* Look up a realized face with the given face attributes,
6202 or realize a new one for ASCII characters. */
6203 return lookup_face (f
, attrs
);
6207 /* Merge a face into a realized face.
6209 F is frame where faces are (to be) realized.
6211 FACE_NAME is named face to merge.
6213 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6215 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6217 BASE_FACE_ID is realized face to merge into.
6223 merge_faces (struct frame
*f
, Lisp_Object face_name
, int face_id
,
6226 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6227 struct face
*base_face
;
6229 base_face
= FACE_FROM_ID (f
, base_face_id
);
6231 return base_face_id
;
6233 if (EQ (face_name
, Qt
))
6235 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6236 return base_face_id
;
6237 face_name
= lface_id_to_name
[face_id
];
6238 /* When called during make-frame, lookup_derived_face may fail
6239 if the faces are uninitialized. Don't signal an error. */
6240 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6241 return (face_id
>= 0 ? face_id
: base_face_id
);
6244 /* Begin with attributes from the base face. */
6245 memcpy (attrs
, base_face
->lface
, sizeof attrs
);
6247 if (!NILP (face_name
))
6249 if (!merge_named_face (f
, face_name
, attrs
, 0))
6250 return base_face_id
;
6256 return base_face_id
;
6257 face
= FACE_FROM_ID (f
, face_id
);
6259 return base_face_id
;
6260 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6263 /* Look up a realized face with the given face attributes,
6264 or realize a new one for ASCII characters. */
6265 return lookup_face (f
, attrs
);
6270 #ifndef HAVE_X_WINDOWS
6271 DEFUN ("x-load-color-file", Fx_load_color_file
,
6272 Sx_load_color_file
, 1, 1, 0,
6273 doc
: /* Create an alist of color entries from an external file.
6275 The file should define one named RGB color per line like so:
6277 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6278 (Lisp_Object filename
)
6281 Lisp_Object cmap
= Qnil
;
6282 Lisp_Object abspath
;
6284 CHECK_STRING (filename
);
6285 abspath
= Fexpand_file_name (filename
, Qnil
);
6288 fp
= emacs_fopen (SSDATA (abspath
), "rt");
6292 int red
, green
, blue
;
6295 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6296 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6299 int color
= RGB (red
, green
, blue
);
6301 int color
= (red
<< 16) | (green
<< 8) | blue
;
6303 char *name
= buf
+ num
;
6304 ptrdiff_t len
= strlen (name
);
6305 len
-= 0 < len
&& name
[len
- 1] == '\n';
6306 cmap
= Fcons (Fcons (make_string (name
, len
), make_number (color
)),
6318 /***********************************************************************
6320 ***********************************************************************/
6324 /* Print the contents of the realized face FACE to stderr. */
6327 dump_realized_face (struct face
*face
)
6329 fprintf (stderr
, "ID: %d\n", face
->id
);
6330 #ifdef HAVE_X_WINDOWS
6331 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6333 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6335 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6336 fprintf (stderr
, "background: 0x%lx (%s)\n",
6338 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6340 fprintf (stderr
, "font_name: %s (%s)\n",
6341 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6342 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6343 #ifdef HAVE_X_WINDOWS
6344 fprintf (stderr
, "font = %p\n", face
->font
);
6346 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6347 fprintf (stderr
, "underline: %d (%s)\n",
6349 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6350 fprintf (stderr
, "hash: %d\n", face
->hash
);
6354 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6361 fprintf (stderr
, "font selection order: ");
6362 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6363 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6364 fprintf (stderr
, "\n");
6366 fprintf (stderr
, "alternative fonts: ");
6367 debug_print (Vface_alternative_font_family_alist
);
6368 fprintf (stderr
, "\n");
6370 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6371 Fdump_face (make_number (i
));
6377 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6379 error ("Not a valid face");
6380 dump_realized_face (face
);
6387 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6388 0, 0, 0, doc
: /* */)
6391 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6392 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6393 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6397 #endif /* GLYPH_DEBUG */
6401 /***********************************************************************
6403 ***********************************************************************/
6406 syms_of_xfaces (void)
6408 DEFSYM (Qface
, "face");
6409 DEFSYM (Qface_no_inherit
, "face-no-inherit");
6410 DEFSYM (Qbitmap_spec_p
, "bitmap-spec-p");
6411 DEFSYM (Qframe_set_background_mode
, "frame-set-background-mode");
6413 /* Lisp face attribute keywords. */
6414 DEFSYM (QCfamily
, ":family");
6415 DEFSYM (QCheight
, ":height");
6416 DEFSYM (QCweight
, ":weight");
6417 DEFSYM (QCslant
, ":slant");
6418 DEFSYM (QCunderline
, ":underline");
6419 DEFSYM (QCinverse_video
, ":inverse-video");
6420 DEFSYM (QCreverse_video
, ":reverse-video");
6421 DEFSYM (QCforeground
, ":foreground");
6422 DEFSYM (QCbackground
, ":background");
6423 DEFSYM (QCstipple
, ":stipple");
6424 DEFSYM (QCwidth
, ":width");
6425 DEFSYM (QCfont
, ":font");
6426 DEFSYM (QCfontset
, ":fontset");
6427 DEFSYM (QCbold
, ":bold");
6428 DEFSYM (QCitalic
, ":italic");
6429 DEFSYM (QCoverline
, ":overline");
6430 DEFSYM (QCstrike_through
, ":strike-through");
6431 DEFSYM (QCbox
, ":box");
6432 DEFSYM (QCinherit
, ":inherit");
6434 /* Symbols used for Lisp face attribute values. */
6435 DEFSYM (QCcolor
, ":color");
6436 DEFSYM (QCline_width
, ":line-width");
6437 DEFSYM (QCstyle
, ":style");
6438 DEFSYM (Qline
, "line");
6439 DEFSYM (Qwave
, "wave");
6440 DEFSYM (Qreleased_button
, "released-button");
6441 DEFSYM (Qpressed_button
, "pressed-button");
6442 DEFSYM (Qnormal
, "normal");
6443 DEFSYM (Qextra_light
, "extra-light");
6444 DEFSYM (Qlight
, "light");
6445 DEFSYM (Qsemi_light
, "semi-light");
6446 DEFSYM (Qsemi_bold
, "semi-bold");
6447 DEFSYM (Qbold
, "bold");
6448 DEFSYM (Qextra_bold
, "extra-bold");
6449 DEFSYM (Qultra_bold
, "ultra-bold");
6450 DEFSYM (Qoblique
, "oblique");
6451 DEFSYM (Qitalic
, "italic");
6452 DEFSYM (Qbackground_color
, "background-color");
6453 DEFSYM (Qforeground_color
, "foreground-color");
6454 DEFSYM (Qunspecified
, "unspecified");
6455 DEFSYM (QCignore_defface
, ":ignore-defface");
6457 DEFSYM (Qface_alias
, "face-alias");
6458 DEFSYM (Qdefault
, "default");
6459 DEFSYM (Qtool_bar
, "tool-bar");
6460 DEFSYM (Qregion
, "region");
6461 DEFSYM (Qfringe
, "fringe");
6462 DEFSYM (Qheader_line
, "header-line");
6463 DEFSYM (Qscroll_bar
, "scroll-bar");
6464 DEFSYM (Qmenu
, "menu");
6465 DEFSYM (Qcursor
, "cursor");
6466 DEFSYM (Qborder
, "border");
6467 DEFSYM (Qmouse
, "mouse");
6468 DEFSYM (Qmode_line_inactive
, "mode-line-inactive");
6469 DEFSYM (Qvertical_border
, "vertical-border");
6470 DEFSYM (Qtty_color_desc
, "tty-color-desc");
6471 DEFSYM (Qtty_color_standard_values
, "tty-color-standard-values");
6472 DEFSYM (Qtty_color_by_index
, "tty-color-by-index");
6473 DEFSYM (Qtty_color_alist
, "tty-color-alist");
6474 DEFSYM (Qscalable_fonts_allowed
, "scalable-fonts-allowed");
6476 Vparam_value_alist
= list1 (Fcons (Qnil
, Qnil
));
6477 staticpro (&Vparam_value_alist
);
6478 Vface_alternative_font_family_alist
= Qnil
;
6479 staticpro (&Vface_alternative_font_family_alist
);
6480 Vface_alternative_font_registry_alist
= Qnil
;
6481 staticpro (&Vface_alternative_font_registry_alist
);
6483 defsubr (&Sinternal_make_lisp_face
);
6484 defsubr (&Sinternal_lisp_face_p
);
6485 defsubr (&Sinternal_set_lisp_face_attribute
);
6486 #ifdef HAVE_WINDOW_SYSTEM
6487 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6489 defsubr (&Scolor_gray_p
);
6490 defsubr (&Scolor_supported_p
);
6491 #ifndef HAVE_X_WINDOWS
6492 defsubr (&Sx_load_color_file
);
6494 defsubr (&Sface_attribute_relative_p
);
6495 defsubr (&Smerge_face_attribute
);
6496 defsubr (&Sinternal_get_lisp_face_attribute
);
6497 defsubr (&Sinternal_lisp_face_attribute_values
);
6498 defsubr (&Sinternal_lisp_face_equal_p
);
6499 defsubr (&Sinternal_lisp_face_empty_p
);
6500 defsubr (&Sinternal_copy_lisp_face
);
6501 defsubr (&Sinternal_merge_in_global_face
);
6502 defsubr (&Sface_font
);
6503 defsubr (&Sframe_face_alist
);
6504 defsubr (&Sdisplay_supports_face_attributes_p
);
6505 defsubr (&Scolor_distance
);
6506 defsubr (&Sinternal_set_font_selection_order
);
6507 defsubr (&Sinternal_set_alternative_font_family_alist
);
6508 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6509 defsubr (&Sface_attributes_as_vector
);
6511 defsubr (&Sdump_face
);
6512 defsubr (&Sshow_face_resources
);
6513 #endif /* GLYPH_DEBUG */
6514 defsubr (&Sclear_face_cache
);
6515 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6517 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6518 defsubr (&Sdump_colors
);
6521 DEFVAR_LISP ("face-new-frame-defaults", Vface_new_frame_defaults
,
6522 doc
: /* List of global face definitions (for internal use only.) */);
6523 Vface_new_frame_defaults
= Qnil
;
6525 DEFVAR_LISP ("face-default-stipple", Vface_default_stipple
,
6526 doc
: /* Default stipple pattern used on monochrome displays.
6527 This stipple pattern is used on monochrome displays
6528 instead of shades of gray for a face background color.
6529 See `set-face-stipple' for possible values for this variable. */);
6530 Vface_default_stipple
= build_pure_c_string ("gray3");
6532 DEFVAR_LISP ("tty-defined-color-alist", Vtty_defined_color_alist
,
6533 doc
: /* An alist of defined terminal colors and their RGB values.
6534 See the docstring of `tty-color-alist' for the details. */);
6535 Vtty_defined_color_alist
= Qnil
;
6537 DEFVAR_LISP ("scalable-fonts-allowed", Vscalable_fonts_allowed
,
6538 doc
: /* Allowed scalable fonts.
6539 A value of nil means don't allow any scalable fonts.
6540 A value of t means allow any scalable font.
6541 Otherwise, value must be a list of regular expressions. A font may be
6542 scaled if its name matches a regular expression in the list.
6543 Note that if value is nil, a scalable font might still be used, if no
6544 other font of the appropriate family and registry is available. */);
6545 Vscalable_fonts_allowed
= Qnil
;
6547 DEFVAR_LISP ("face-ignored-fonts", Vface_ignored_fonts
,
6548 doc
: /* List of ignored fonts.
6549 Each element is a regular expression that matches names of fonts to
6551 Vface_ignored_fonts
= Qnil
;
6553 DEFVAR_LISP ("face-remapping-alist", Vface_remapping_alist
,
6554 doc
: /* Alist of face remappings.
6555 Each element is of the form:
6557 (FACE . REPLACEMENT),
6559 which causes display of the face FACE to use REPLACEMENT instead.
6560 REPLACEMENT is a face specification, i.e. one of the following:
6563 (2) a property list of attribute/value pairs, or
6564 (3) a list in which each element has the form of (1) or (2).
6566 List values for REPLACEMENT are merged to form the final face
6567 specification, with earlier entries taking precedence, in the same as
6568 as in the `face' text property.
6570 Face-name remapping cycles are suppressed; recursive references use
6571 the underlying face instead of the remapped face. So a remapping of
6574 (FACE EXTRA-FACE... FACE)
6578 (FACE (FACE-ATTR VAL ...) FACE)
6580 causes EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6581 existing definition of FACE. Note that this isn't necessary for the
6582 default face, since every face inherits from the default face.
6584 If this variable is made buffer-local, the face remapping takes effect
6585 only in that buffer. For instance, the mode my-mode could define a
6586 face `my-mode-default', and then in the mode setup function, do:
6588 (set (make-local-variable 'face-remapping-alist)
6589 '((default my-mode-default)))).
6591 Because Emacs normally only redraws screen areas when the underlying
6592 buffer contents change, you may need to call `redraw-display' after
6593 changing this variable for it to take effect. */);
6594 Vface_remapping_alist
= Qnil
;
6596 DEFVAR_LISP ("face-font-rescale-alist", Vface_font_rescale_alist
,
6597 doc
: /* Alist of fonts vs the rescaling factors.
6598 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6599 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6600 RESCALE-RATIO is a floating point number to specify how much larger
6601 \(or smaller) font we should use. For instance, if a face requests
6602 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6603 Vface_font_rescale_alist
= Qnil
;
6605 #ifdef HAVE_WINDOW_SYSTEM
6606 defsubr (&Sbitmap_spec_p
);
6607 defsubr (&Sx_list_fonts
);
6608 defsubr (&Sinternal_face_x_get_resource
);
6609 defsubr (&Sx_family_fonts
);