1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
24 When using Emacs with X, the display style of characters can be
25 changed by defining `faces'. Each face can specify the following
30 2. Font foundary name.
32 3. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 4. Font height in 1/10pt.
37 5. Font weight, e.g. `bold'.
39 6. Font slant, e.g. `italic'.
45 9. Whether or not characters should be underlined, and in what color.
47 10. Whether or not characters should be displayed in inverse video.
49 11. A background stipple, a bitmap.
51 12. Whether or not characters should be overlined, and in what color.
53 13. Whether or not characters should be strike-through, and in what
56 14. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 15. Font-spec, or nil. This is a special attribute.
61 A font-spec is a collection of font attributes (specs).
63 When this attribute is specified, the face uses a font matching
64 with the specs as is except for what overwritten by the specs in
65 the fontset (see below). In addition, the other font-related
66 attributes (1st thru 5th) are updated from the spec.
68 On the other hand, if one of the other font-related attributes are
69 specified, the correspoinding specs in this attribute is set to nil.
71 15. A face name or list of face names from which to inherit attributes.
73 16. A specified average font width, which is invisible from Lisp,
74 and is used to ensure that a font specified on the command line,
75 for example, can be matched exactly.
77 17. A fontset name. This is another special attribute.
79 A fontset is a mappings from characters to font-specs, and the
80 specs overwrite the font-spec in the 14th attribute.
83 Faces are frame-local by nature because Emacs allows to define the
84 same named face (face names are symbols) differently for different
85 frames. Each frame has an alist of face definitions for all named
86 faces. The value of a named face in such an alist is a Lisp vector
87 with the symbol `face' in slot 0, and a slot for each of the face
88 attributes mentioned above.
90 There is also a global face alist `Vface_new_frame_defaults'. Face
91 definitions from this list are used to initialize faces of newly
94 A face doesn't have to specify all attributes. Those not specified
95 have a value of `unspecified'. Faces specifying all attributes but
96 the 14th are called `fully-specified'.
101 The display style of a given character in the text is determined by
102 combining several faces. This process is called `face merging'.
103 Any aspect of the display style that isn't specified by overlays or
104 text properties is taken from the `default' face. Since it is made
105 sure that the default face is always fully-specified, face merging
106 always results in a fully-specified face.
111 After all face attributes for a character have been determined by
112 merging faces of that character, that face is `realized'. The
113 realization process maps face attributes to what is physically
114 available on the system where Emacs runs. The result is a
115 `realized face' in form of a struct face which is stored in the
116 face cache of the frame on which it was realized.
118 Face realization is done in the context of the character to display
119 because different fonts may be used for different characters. In
120 other words, for characters that have different font
121 specifications, different realized faces are needed to display
124 Font specification is done by fontsets. See the comment in
125 fontset.c for the details. In the current implementation, all ASCII
126 characters share the same font in a fontset.
128 Faces are at first realized for ASCII characters, and, at that
129 time, assigned a specific realized fontset. Hereafter, we call
130 such a face as `ASCII face'. When a face for a multibyte character
131 is realized, it inherits (thus shares) a fontset of an ASCII face
132 that has the same attributes other than font-related ones.
134 Thus, all realized faces have a realized fontset.
139 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
140 font as ASCII characters. That is because it is expected that
141 unibyte text users specify a font that is suitable both for ASCII
142 and raw 8-bit characters.
147 Font selection tries to find the best available matching font for a
148 given (character, face) combination.
150 If the face specifies a fontset name, that fontset determines a
151 pattern for fonts of the given character. If the face specifies a
152 font name or the other font-related attributes, a fontset is
153 realized from the default fontset. In that case, that
154 specification determines a pattern for ASCII characters and the
155 default fontset determines a pattern for multibyte characters.
157 Available fonts on the system on which Emacs runs are then matched
158 against the font pattern. The result of font selection is the best
159 match for the given face attributes in this font list.
161 Font selection can be influenced by the user.
163 1. The user can specify the relative importance he gives the face
164 attributes width, height, weight, and slant by setting
165 face-font-selection-order (faces.el) to a list of face attribute
166 names. The default is '(:width :height :weight :slant), and means
167 that font selection first tries to find a good match for the font
168 width specified by a face, then---within fonts with that
169 width---tries to find a best match for the specified font height,
172 2. Setting face-font-family-alternatives allows the user to
173 specify alternative font families to try if a family specified by a
176 3. Setting face-font-registry-alternatives allows the user to
177 specify all alternative font registries to try for a face
178 specifying a registry.
180 4. Setting face-ignored-fonts allows the user to ignore specific
184 Character composition.
186 Usually, the realization process is already finished when Emacs
187 actually reflects the desired glyph matrix on the screen. However,
188 on displaying a composition (sequence of characters to be composed
189 on the screen), a suitable font for the components of the
190 composition is selected and realized while drawing them on the
191 screen, i.e. the realization process is delayed but in principle
195 Initialization of basic faces.
197 The faces `default', `modeline' are considered `basic faces'.
198 When redisplay happens the first time for a newly created frame,
199 basic faces are realized for CHARSET_ASCII. Frame parameters are
200 used to fill in unspecified attributes of the default face. */
204 #include <sys/types.h>
205 #include <sys/stat.h>
206 #include <stdio.h> /* This needs to be before termchar.h */
209 #include "character.h"
211 #include "keyboard.h"
213 #include "termhooks.h"
215 #ifdef HAVE_X_WINDOWS
219 #include <Xm/XmStrDefs.h>
220 #endif /* USE_MOTIF */
221 #endif /* HAVE_X_WINDOWS */
230 /* Redefine X specifics to W32 equivalents to avoid cluttering the
231 code with #ifdef blocks. */
232 #undef FRAME_X_DISPLAY_INFO
233 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
234 #define x_display_info w32_display_info
235 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
236 #define check_x check_w32
237 #define GCGraphicsExposures 0
238 #endif /* WINDOWSNT */
242 #undef FRAME_X_DISPLAY_INFO
243 #define FRAME_X_DISPLAY_INFO FRAME_NS_DISPLAY_INFO
244 #define x_display_info ns_display_info
245 #define FRAME_X_FONT_TABLE FRAME_NS_FONT_TABLE
246 #define check_x check_ns
247 #define GCGraphicsExposures 0
251 #include "dispextern.h"
252 #include "blockinput.h"
254 #include "intervals.h"
255 #include "termchar.h"
258 #ifdef HAVE_WINDOW_SYSTEM
260 #endif /* HAVE_WINDOW_SYSTEM */
262 #ifdef HAVE_X_WINDOWS
264 /* Compensate for a bug in Xos.h on some systems, on which it requires
265 time.h. On some such systems, Xos.h tries to redefine struct
266 timeval and struct timezone if USG is #defined while it is
269 #ifdef XOS_NEEDS_TIME_H
275 #else /* not XOS_NEEDS_TIME_H */
277 #endif /* not XOS_NEEDS_TIME_H */
279 #endif /* HAVE_X_WINDOWS */
283 /* Number of pt per inch (from the TeXbook). */
285 #define PT_PER_INCH 72.27
287 /* Non-zero if face attribute ATTR is unspecified. */
289 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
291 /* Non-zero if face attribute ATTR is `ignore-defface'. */
293 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
295 /* Value is the number of elements of VECTOR. */
297 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
299 /* Make a copy of string S on the stack using alloca. Value is a pointer
302 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
304 /* Make a copy of the contents of Lisp string S on the stack using
305 alloca. Value is a pointer to the copy. */
307 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
309 /* Size of hash table of realized faces in face caches (should be a
312 #define FACE_CACHE_BUCKETS_SIZE 1001
314 /* Keyword symbols used for face attribute names. */
316 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
317 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
318 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
319 Lisp_Object QCreverse_video
;
320 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
321 Lisp_Object QCfontset
;
323 /* Keywords symbols used for font properties. */
324 extern Lisp_Object QCfoundry
, QCadstyle
, QCregistry
;
325 extern Lisp_Object QCspacing
, QCsize
, QCavgwidth
;
326 extern Lisp_Object Qp
;
328 /* Symbols used for attribute values. */
330 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
331 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
332 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
333 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
334 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
335 Lisp_Object Qultra_expanded
;
336 Lisp_Object Qreleased_button
, Qpressed_button
;
337 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
338 Lisp_Object Qunspecified
;
339 Lisp_Object Qignore_defface
;
341 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
343 /* The name of the function to call when the background of the frame
344 has changed, frame_set_background_mode. */
346 Lisp_Object Qframe_set_background_mode
;
348 /* Names of basic faces. */
350 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
351 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
352 Lisp_Object Qmode_line_inactive
, Qvertical_border
;
353 extern Lisp_Object Qmode_line
;
355 /* The symbol `face-alias'. A symbols having that property is an
356 alias for another face. Value of the property is the name of
359 Lisp_Object Qface_alias
;
361 extern Lisp_Object Qcircular_list
;
363 /* Default stipple pattern used on monochrome displays. This stipple
364 pattern is used on monochrome displays instead of shades of gray
365 for a face background color. See `set-face-stipple' for possible
366 values for this variable. */
368 Lisp_Object Vface_default_stipple
;
370 /* Alist of alternative font families. Each element is of the form
371 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
372 try FAMILY1, then FAMILY2, ... */
374 Lisp_Object Vface_alternative_font_family_alist
;
376 /* Alist of alternative font registries. Each element is of the form
377 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
378 loaded, try REGISTRY1, then REGISTRY2, ... */
380 Lisp_Object Vface_alternative_font_registry_alist
;
382 /* Allowed scalable fonts. A value of nil means don't allow any
383 scalable fonts. A value of t means allow the use of any scalable
384 font. Otherwise, value must be a list of regular expressions. A
385 font may be scaled if its name matches a regular expression in the
388 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
390 /* List of regular expressions that matches names of fonts to ignore. */
392 Lisp_Object Vface_ignored_fonts
;
394 /* Alist of font name patterns vs the rescaling factor. */
396 Lisp_Object Vface_font_rescale_alist
;
398 /* Maximum number of fonts to consider in font_list. If not an
399 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
401 Lisp_Object Vfont_list_limit
;
402 #define DEFAULT_FONT_LIST_LIMIT 100
404 /* The symbols `foreground-color' and `background-color' which can be
405 used as part of a `face' property. This is for compatibility with
408 Lisp_Object Qforeground_color
, Qbackground_color
;
410 /* The symbols `face' and `mouse-face' used as text properties. */
413 extern Lisp_Object Qmouse_face
;
415 /* Property for basic faces which other faces cannot inherit. */
417 Lisp_Object Qface_no_inherit
;
419 /* Error symbol for wrong_type_argument in load_pixmap. */
421 Lisp_Object Qbitmap_spec_p
;
423 /* Alist of global face definitions. Each element is of the form
424 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
425 is a Lisp vector of face attributes. These faces are used
426 to initialize faces for new frames. */
428 Lisp_Object Vface_new_frame_defaults
;
430 /* Alist of face remappings. Each element is of the form:
431 (FACE REPLACEMENT...) which causes display of the face FACE to use
432 REPLACEMENT... instead. REPLACEMENT... is interpreted the same way
433 the value of a `face' text property is: it may be (1) A face name,
434 (2) A list of face names, (3) A property-list of face attribute/value
435 pairs, or (4) A list of face names intermixed with lists containing
436 face attribute/value pairs.
438 Multiple entries in REPLACEMENT... are merged together to form the final
439 result, with faces or attributes earlier in the list taking precedence
440 over those that are later.
442 Face-name remapping cycles are suppressed; recursive references use
443 the underlying face instead of the remapped face. */
445 Lisp_Object Vface_remapping_alist
;
447 /* The next ID to assign to Lisp faces. */
449 static int next_lface_id
;
451 /* A vector mapping Lisp face Id's to face names. */
453 static Lisp_Object
*lface_id_to_name
;
454 static int lface_id_to_name_size
;
456 /* TTY color-related functions (defined in tty-colors.el). */
458 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
460 /* The name of the function used to compute colors on TTYs. */
462 Lisp_Object Qtty_color_alist
;
464 /* An alist of defined terminal colors and their RGB values. */
466 Lisp_Object Vtty_defined_color_alist
;
468 /* Counter for calls to clear_face_cache. If this counter reaches
469 CLEAR_FONT_TABLE_COUNT, and a frame has more than
470 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
472 static int clear_font_table_count
;
473 #define CLEAR_FONT_TABLE_COUNT 100
474 #define CLEAR_FONT_TABLE_NFONTS 10
476 /* Non-zero means face attributes have been changed since the last
477 redisplay. Used in redisplay_internal. */
479 int face_change_count
;
481 /* Non-zero means don't display bold text if a face's foreground
482 and background colors are the inverse of the default colors of the
483 display. This is a kluge to suppress `bold black' foreground text
484 which is hard to read on an LCD monitor. */
486 int tty_suppress_bold_inverse_default_colors_p
;
488 /* A list of the form `((x . y))' used to avoid consing in
489 Finternal_set_lisp_face_attribute. */
491 static Lisp_Object Vparam_value_alist
;
493 /* The total number of colors currently allocated. */
496 static int ncolors_allocated
;
497 static int npixmaps_allocated
;
501 /* Non-zero means the definition of the `menu' face for new frames has
504 int menu_face_changed_default
;
507 /* Function prototypes. */
510 struct named_merge_point
;
512 static void map_tty_color
P_ ((struct frame
*, struct face
*,
513 enum lface_attribute_index
, int *));
514 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
, int));
515 static int may_use_scalable_font_p
P_ ((const char *));
516 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
517 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
518 int, struct named_merge_point
*));
519 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
520 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
521 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
522 static void free_face_colors
P_ ((struct frame
*, struct face
*));
523 static int face_color_gray_p
P_ ((struct frame
*, char *));
524 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*,
526 static struct face
*realize_non_ascii_face
P_ ((struct frame
*, Lisp_Object
,
528 static struct face
*realize_x_face
P_ ((struct face_cache
*, Lisp_Object
*));
529 static struct face
*realize_tty_face
P_ ((struct face_cache
*, Lisp_Object
*));
530 static int realize_basic_faces
P_ ((struct frame
*));
531 static int realize_default_face
P_ ((struct frame
*));
532 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
533 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
534 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
535 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
536 static unsigned lface_hash
P_ ((Lisp_Object
*));
537 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
538 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
539 static void clear_face_gcs
P_ ((struct face_cache
*));
540 static void free_face_cache
P_ ((struct face_cache
*));
541 static int face_fontset
P_ ((Lisp_Object
*));
542 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
543 struct named_merge_point
*));
544 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
545 int, struct named_merge_point
*));
546 static int set_lface_from_font
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
548 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
549 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
550 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
551 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
553 #ifdef HAVE_WINDOW_SYSTEM
555 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
556 static void x_free_gc
P_ ((struct frame
*, GC
));
559 static void x_update_menu_appearance
P_ ((struct frame
*));
561 extern void free_frame_menubar
P_ ((struct frame
*));
562 #endif /* USE_X_TOOLKIT */
564 #endif /* HAVE_WINDOW_SYSTEM */
567 /***********************************************************************
569 ***********************************************************************/
571 #ifdef HAVE_X_WINDOWS
573 #ifdef DEBUG_X_COLORS
575 /* The following is a poor mans infrastructure for debugging X color
576 allocation problems on displays with PseudoColor-8. Some X servers
577 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
578 color reference counts completely so that they don't signal an
579 error when a color is freed whose reference count is already 0.
580 Other X servers do. To help me debug this, the following code
581 implements a simple reference counting schema of its own, for a
582 single display/screen. --gerd. */
584 /* Reference counts for pixel colors. */
586 int color_count
[256];
588 /* Register color PIXEL as allocated. */
591 register_color (pixel
)
594 xassert (pixel
< 256);
595 ++color_count
[pixel
];
599 /* Register color PIXEL as deallocated. */
602 unregister_color (pixel
)
605 xassert (pixel
< 256);
606 if (color_count
[pixel
] > 0)
607 --color_count
[pixel
];
613 /* Register N colors from PIXELS as deallocated. */
616 unregister_colors (pixels
, n
)
617 unsigned long *pixels
;
621 for (i
= 0; i
< n
; ++i
)
622 unregister_color (pixels
[i
]);
626 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
627 doc
: /* Dump currently allocated colors to stderr. */)
632 fputc ('\n', stderr
);
634 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
637 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
640 fputc ('\n', stderr
);
642 fputc ('\t', stderr
);
646 fputc ('\n', stderr
);
650 #endif /* DEBUG_X_COLORS */
653 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
654 color values. Interrupt input must be blocked when this function
658 x_free_colors (f
, pixels
, npixels
)
660 unsigned long *pixels
;
663 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
665 /* If display has an immutable color map, freeing colors is not
666 necessary and some servers don't allow it. So don't do it. */
667 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
669 #ifdef DEBUG_X_COLORS
670 unregister_colors (pixels
, npixels
);
672 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
678 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
679 color values. Interrupt input must be blocked when this function
683 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
687 unsigned long *pixels
;
690 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
691 int class = dpyinfo
->visual
->class;
693 /* If display has an immutable color map, freeing colors is not
694 necessary and some servers don't allow it. So don't do it. */
695 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
697 #ifdef DEBUG_X_COLORS
698 unregister_colors (pixels
, npixels
);
700 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
705 /* Create and return a GC for use on frame F. GC values and mask
706 are given by XGCV and MASK. */
709 x_create_gc (f
, mask
, xgcv
)
716 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
723 /* Free GC which was used on frame F. */
730 eassert (interrupt_input_blocked
);
731 IF_DEBUG (xassert (--ngcs
>= 0));
732 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
735 #endif /* HAVE_X_WINDOWS */
738 /* W32 emulation of GCs */
741 x_create_gc (f
, mask
, xgcv
)
748 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
755 /* Free GC which was used on frame F. */
762 IF_DEBUG (xassert (--ngcs
>= 0));
766 #endif /* WINDOWSNT */
769 /* NS emulation of GCs */
772 x_create_gc (f
, mask
, xgcv
)
777 GC gc
= xmalloc (sizeof (*gc
));
779 bcopy(xgcv
, gc
, sizeof(XGCValues
));
793 /* Like strcasecmp/stricmp. Used to compare parts of font names which
798 const unsigned char *s1
, *s2
;
802 unsigned char c1
= tolower (*s1
);
803 unsigned char c2
= tolower (*s2
);
805 return c1
< c2
? -1 : 1;
810 return *s2
== 0 ? 0 : -1;
815 /* If FRAME is nil, return a pointer to the selected frame.
816 Otherwise, check that FRAME is a live frame, and return a pointer
817 to it. NPARAM is the parameter number of FRAME, for
818 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
819 Lisp function definitions. */
821 static INLINE
struct frame
*
822 frame_or_selected_frame (frame
, nparam
)
827 frame
= selected_frame
;
829 CHECK_LIVE_FRAME (frame
);
830 return XFRAME (frame
);
834 /***********************************************************************
836 ***********************************************************************/
838 /* Initialize face cache and basic faces for frame F. */
844 /* Make a face cache, if F doesn't have one. */
845 if (FRAME_FACE_CACHE (f
) == NULL
)
846 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
848 #ifdef HAVE_WINDOW_SYSTEM
849 /* Make the image cache. */
850 if (FRAME_WINDOW_P (f
))
852 /* We initialize the image cache when creating the first frame
853 on a terminal, and not during terminal creation. This way,
854 `x-open-connection' on a tty won't create an image cache. */
855 if (FRAME_IMAGE_CACHE (f
) == NULL
)
856 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
857 ++FRAME_IMAGE_CACHE (f
)->refcount
;
859 #endif /* HAVE_WINDOW_SYSTEM */
861 /* Realize basic faces. Must have enough information in frame
862 parameters to realize basic faces at this point. */
863 #ifdef HAVE_X_WINDOWS
864 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
867 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
870 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
872 if (!realize_basic_faces (f
))
877 /* Free face cache of frame F. Called from delete_frame. */
883 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
887 free_face_cache (face_cache
);
888 FRAME_FACE_CACHE (f
) = NULL
;
891 #ifdef HAVE_WINDOW_SYSTEM
892 if (FRAME_WINDOW_P (f
))
894 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
897 --image_cache
->refcount
;
898 if (image_cache
->refcount
== 0)
899 free_image_cache (f
);
902 #endif /* HAVE_WINDOW_SYSTEM */
906 /* Clear face caches, and recompute basic faces for frame F. Call
907 this after changing frame parameters on which those faces depend,
908 or when realized faces have been freed due to changing attributes
912 recompute_basic_faces (f
)
915 if (FRAME_FACE_CACHE (f
))
917 clear_face_cache (0);
918 if (!realize_basic_faces (f
))
924 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
925 try to free unused fonts, too. */
928 clear_face_cache (clear_fonts_p
)
931 #ifdef HAVE_WINDOW_SYSTEM
932 Lisp_Object tail
, frame
;
936 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
939 /* Not yet implemented. */
940 clear_font_cache (frame
);
943 /* From time to time see if we can unload some fonts. This also
944 frees all realized faces on all frames. Fonts needed by
945 faces will be loaded again when faces are realized again. */
946 clear_font_table_count
= 0;
948 FOR_EACH_FRAME (tail
, frame
)
950 struct frame
*f
= XFRAME (frame
);
951 if (FRAME_WINDOW_P (f
)
952 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
953 free_all_realized_faces (frame
);
958 /* Clear GCs of realized faces. */
959 FOR_EACH_FRAME (tail
, frame
)
962 if (FRAME_WINDOW_P (f
))
963 clear_face_gcs (FRAME_FACE_CACHE (f
));
965 clear_image_caches (Qnil
);
967 #endif /* HAVE_WINDOW_SYSTEM */
971 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
972 doc
: /* Clear face caches on all frames.
973 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
975 Lisp_Object thoroughly
;
977 clear_face_cache (!NILP (thoroughly
));
979 ++windows_or_buffers_changed
;
984 /***********************************************************************
986 ***********************************************************************/
988 #ifdef HAVE_WINDOW_SYSTEM
990 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
991 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
992 A bitmap specification is either a string, a file name, or a list
993 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
994 HEIGHT is its height, and DATA is a string containing the bits of
995 the pixmap. Bits are stored row by row, each row occupies
996 \(WIDTH + 7)/8 bytes. */)
1002 if (STRINGP (object
))
1003 /* If OBJECT is a string, it's a file name. */
1005 else if (CONSP (object
))
1007 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1008 HEIGHT must be integers > 0, and DATA must be string large
1009 enough to hold a bitmap of the specified size. */
1010 Lisp_Object width
, height
, data
;
1012 height
= width
= data
= Qnil
;
1016 width
= XCAR (object
);
1017 object
= XCDR (object
);
1020 height
= XCAR (object
);
1021 object
= XCDR (object
);
1023 data
= XCAR (object
);
1027 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1029 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1031 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1036 return pixmap_p
? Qt
: Qnil
;
1040 /* Load a bitmap according to NAME (which is either a file name or a
1041 pixmap spec) for use on frame F. Value is the bitmap_id (see
1042 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1043 bitmap cannot be loaded, display a message saying so, and return
1044 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1045 if these pointers are not null. */
1048 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1051 unsigned int *w_ptr
, *h_ptr
;
1058 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
1063 /* Decode a bitmap spec into a bitmap. */
1068 w
= XINT (Fcar (name
));
1069 h
= XINT (Fcar (Fcdr (name
)));
1070 bits
= Fcar (Fcdr (Fcdr (name
)));
1072 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1077 /* It must be a string -- a file name. */
1078 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1084 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1095 ++npixmaps_allocated
;
1098 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1101 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1107 #endif /* HAVE_WINDOW_SYSTEM */
1111 /***********************************************************************
1113 ***********************************************************************/
1115 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1116 RGB_LIST should contain (at least) 3 lisp integers.
1117 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1120 parse_rgb_list (rgb_list
, color
)
1121 Lisp_Object rgb_list
;
1124 #define PARSE_RGB_LIST_FIELD(field) \
1125 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1127 color->field = XINT (XCAR (rgb_list)); \
1128 rgb_list = XCDR (rgb_list); \
1133 PARSE_RGB_LIST_FIELD (red
);
1134 PARSE_RGB_LIST_FIELD (green
);
1135 PARSE_RGB_LIST_FIELD (blue
);
1141 /* Lookup on frame F the color described by the lisp string COLOR.
1142 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1143 non-zero, then the `standard' definition of the same color is
1147 tty_lookup_color (f
, color
, tty_color
, std_color
)
1150 XColor
*tty_color
, *std_color
;
1152 Lisp_Object frame
, color_desc
;
1154 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1157 XSETFRAME (frame
, f
);
1159 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1160 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1164 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1167 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1169 rgb
= XCDR (XCDR (color_desc
));
1170 if (! parse_rgb_list (rgb
, tty_color
))
1173 /* Should we fill in STD_COLOR too? */
1176 /* Default STD_COLOR to the same as TTY_COLOR. */
1177 *std_color
= *tty_color
;
1179 /* Do a quick check to see if the returned descriptor is
1180 actually _exactly_ equal to COLOR, otherwise we have to
1181 lookup STD_COLOR separately. If it's impossible to lookup
1182 a standard color, we just give up and use TTY_COLOR. */
1183 if ((!STRINGP (XCAR (color_desc
))
1184 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1185 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1187 /* Look up STD_COLOR separately. */
1188 rgb
= call1 (Qtty_color_standard_values
, color
);
1189 if (! parse_rgb_list (rgb
, std_color
))
1196 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1197 /* We were called early during startup, and the colors are not
1198 yet set up in tty-defined-color-alist. Don't return a failure
1199 indication, since this produces the annoying "Unable to
1200 load color" messages in the *Messages* buffer. */
1203 /* tty-color-desc seems to have returned a bad value. */
1207 /* A version of defined_color for non-X frames. */
1210 tty_defined_color (f
, color_name
, color_def
, alloc
)
1219 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1221 color_def
->blue
= 0;
1222 color_def
->green
= 0;
1225 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1227 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1229 if (strcmp (color_name
, "unspecified-fg") == 0)
1230 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1231 else if (strcmp (color_name
, "unspecified-bg") == 0)
1232 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1235 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1242 /* Decide if color named COLOR_NAME is valid for the display
1243 associated with the frame F; if so, return the rgb values in
1244 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1246 This does the right thing for any type of frame. */
1249 defined_color (f
, color_name
, color_def
, alloc
)
1255 if (!FRAME_WINDOW_P (f
))
1256 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1257 #ifdef HAVE_X_WINDOWS
1258 else if (FRAME_X_P (f
))
1259 return x_defined_color (f
, color_name
, color_def
, alloc
);
1262 else if (FRAME_W32_P (f
))
1263 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1266 else if (FRAME_NS_P (f
))
1267 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1274 /* Given the index IDX of a tty color on frame F, return its name, a
1278 tty_color_name (f
, idx
)
1282 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1285 Lisp_Object coldesc
;
1287 XSETFRAME (frame
, f
);
1288 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1290 if (!NILP (coldesc
))
1291 return XCAR (coldesc
);
1294 /* We can have an MSDOG frame under -nw for a short window of
1295 opportunity before internal_terminal_init is called. DTRT. */
1296 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1297 return msdos_stdcolor_name (idx
);
1300 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1301 return build_string (unspecified_fg
);
1302 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1303 return build_string (unspecified_bg
);
1305 return Qunspecified
;
1309 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1312 The criterion implemented here is not a terribly sophisticated one. */
1315 face_color_gray_p (f
, color_name
)
1322 if (defined_color (f
, color_name
, &color
, 0))
1323 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1324 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1326 ((eabs (color
.red
- color
.green
)
1327 < max (color
.red
, color
.green
) / 20)
1328 && (eabs (color
.green
- color
.blue
)
1329 < max (color
.green
, color
.blue
) / 20)
1330 && (eabs (color
.blue
- color
.red
)
1331 < max (color
.blue
, color
.red
) / 20)));
1339 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1340 BACKGROUND_P non-zero means the color will be used as background
1344 face_color_supported_p (f
, color_name
, background_p
)
1352 XSETFRAME (frame
, f
);
1354 #ifdef HAVE_WINDOW_SYSTEM
1356 ? (!NILP (Fxw_display_color_p (frame
))
1357 || xstrcasecmp (color_name
, "black") == 0
1358 || xstrcasecmp (color_name
, "white") == 0
1360 && face_color_gray_p (f
, color_name
))
1361 || (!NILP (Fx_display_grayscale_p (frame
))
1362 && face_color_gray_p (f
, color_name
)))
1365 tty_defined_color (f
, color_name
, ¬_used
, 0);
1369 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1370 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1371 FRAME specifies the frame and thus the display for interpreting COLOR.
1372 If FRAME is nil or omitted, use the selected frame. */)
1374 Lisp_Object color
, frame
;
1378 CHECK_STRING (color
);
1380 frame
= selected_frame
;
1382 CHECK_FRAME (frame
);
1384 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1388 DEFUN ("color-supported-p", Fcolor_supported_p
,
1389 Scolor_supported_p
, 1, 3, 0,
1390 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1391 BACKGROUND-P non-nil means COLOR is used as a background.
1392 Otherwise, this function tells whether it can be used as a foreground.
1393 If FRAME is nil or omitted, use the selected frame.
1394 COLOR must be a valid color name. */)
1395 (color
, frame
, background_p
)
1396 Lisp_Object frame
, color
, background_p
;
1400 CHECK_STRING (color
);
1402 frame
= selected_frame
;
1404 CHECK_FRAME (frame
);
1406 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1412 /* Load color with name NAME for use by face FACE on frame F.
1413 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1414 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1415 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1416 pixel color. If color cannot be loaded, display a message, and
1417 return the foreground, background or underline color of F, but
1418 record that fact in flags of the face so that we don't try to free
1422 load_color (f
, face
, name
, target_index
)
1426 enum lface_attribute_index target_index
;
1430 xassert (STRINGP (name
));
1431 xassert (target_index
== LFACE_FOREGROUND_INDEX
1432 || target_index
== LFACE_BACKGROUND_INDEX
1433 || target_index
== LFACE_UNDERLINE_INDEX
1434 || target_index
== LFACE_OVERLINE_INDEX
1435 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1436 || target_index
== LFACE_BOX_INDEX
);
1438 /* if the color map is full, defined_color will return a best match
1439 to the values in an existing cell. */
1440 if (!defined_color (f
, SDATA (name
), &color
, 1))
1442 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1444 switch (target_index
)
1446 case LFACE_FOREGROUND_INDEX
:
1447 face
->foreground_defaulted_p
= 1;
1448 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1451 case LFACE_BACKGROUND_INDEX
:
1452 face
->background_defaulted_p
= 1;
1453 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1456 case LFACE_UNDERLINE_INDEX
:
1457 face
->underline_defaulted_p
= 1;
1458 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1461 case LFACE_OVERLINE_INDEX
:
1462 face
->overline_color_defaulted_p
= 1;
1463 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1466 case LFACE_STRIKE_THROUGH_INDEX
:
1467 face
->strike_through_color_defaulted_p
= 1;
1468 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1471 case LFACE_BOX_INDEX
:
1472 face
->box_color_defaulted_p
= 1;
1473 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1482 ++ncolors_allocated
;
1489 #ifdef HAVE_WINDOW_SYSTEM
1491 /* Load colors for face FACE which is used on frame F. Colors are
1492 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1493 of ATTRS. If the background color specified is not supported on F,
1494 try to emulate gray colors with a stipple from Vface_default_stipple. */
1497 load_face_colors (f
, face
, attrs
)
1504 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1505 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1507 /* Swap colors if face is inverse-video. */
1508 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1516 /* Check for support for foreground, not for background because
1517 face_color_supported_p is smart enough to know that grays are
1518 "supported" as background because we are supposed to use stipple
1520 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1521 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1523 x_destroy_bitmap (f
, face
->stipple
);
1524 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1525 &face
->pixmap_w
, &face
->pixmap_h
);
1528 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1529 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1533 /* Free color PIXEL on frame F. */
1536 unload_color (f
, pixel
)
1538 unsigned long pixel
;
1540 #ifdef HAVE_X_WINDOWS
1544 x_free_colors (f
, &pixel
, 1);
1551 /* Free colors allocated for FACE. */
1554 free_face_colors (f
, face
)
1558 /* PENDING(NS): need to do something here? */
1559 #ifdef HAVE_X_WINDOWS
1560 if (face
->colors_copied_bitwise_p
)
1565 if (!face
->foreground_defaulted_p
)
1567 x_free_colors (f
, &face
->foreground
, 1);
1568 IF_DEBUG (--ncolors_allocated
);
1571 if (!face
->background_defaulted_p
)
1573 x_free_colors (f
, &face
->background
, 1);
1574 IF_DEBUG (--ncolors_allocated
);
1577 if (face
->underline_p
1578 && !face
->underline_defaulted_p
)
1580 x_free_colors (f
, &face
->underline_color
, 1);
1581 IF_DEBUG (--ncolors_allocated
);
1584 if (face
->overline_p
1585 && !face
->overline_color_defaulted_p
)
1587 x_free_colors (f
, &face
->overline_color
, 1);
1588 IF_DEBUG (--ncolors_allocated
);
1591 if (face
->strike_through_p
1592 && !face
->strike_through_color_defaulted_p
)
1594 x_free_colors (f
, &face
->strike_through_color
, 1);
1595 IF_DEBUG (--ncolors_allocated
);
1598 if (face
->box
!= FACE_NO_BOX
1599 && !face
->box_color_defaulted_p
)
1601 x_free_colors (f
, &face
->box_color
, 1);
1602 IF_DEBUG (--ncolors_allocated
);
1606 #endif /* HAVE_X_WINDOWS */
1609 #endif /* HAVE_WINDOW_SYSTEM */
1613 /***********************************************************************
1615 ***********************************************************************/
1617 /* An enumerator for each field of an XLFD font name. */
1638 /* An enumerator for each possible slant value of a font. Taken from
1639 the XLFD specification. */
1647 XLFD_SLANT_REVERSE_ITALIC
,
1648 XLFD_SLANT_REVERSE_OBLIQUE
,
1652 /* Relative font weight according to XLFD documentation. */
1656 XLFD_WEIGHT_UNKNOWN
,
1657 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1658 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1659 XLFD_WEIGHT_LIGHT
, /* 30 */
1660 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1661 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1662 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1663 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1664 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1665 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1668 /* Relative proportionate width. */
1672 XLFD_SWIDTH_UNKNOWN
,
1673 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1674 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1675 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1676 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1677 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1678 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1679 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1680 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1681 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1684 /* Order by which font selection chooses fonts. The default values
1685 mean `first, find a best match for the font width, then for the
1686 font height, then for weight, then for slant.' This variable can be
1687 set via set-face-font-sort-order. */
1689 static int font_sort_order
[4];
1691 #ifdef HAVE_WINDOW_SYSTEM
1693 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1696 compare_fonts_by_sort_order (v1
, v2
)
1697 const void *v1
, *v2
;
1699 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1700 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1703 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1705 enum font_property_index idx
= font_props_for_sorting
[i
];
1706 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1709 if (idx
<= FONT_REGISTRY_INDEX
)
1712 result
= STRINGP (val2
) ? strcmp (SDATA (val1
), SDATA (val2
)) : -1;
1714 result
= STRINGP (val2
) ? 1 : 0;
1718 if (INTEGERP (val1
))
1719 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1721 result
= INTEGERP (val2
) ? 1 : 0;
1729 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1730 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1731 If FAMILY is omitted or nil, list all families.
1732 Otherwise, FAMILY must be a string, possibly containing wildcards
1734 If FRAME is omitted or nil, use the selected frame.
1735 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1736 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1737 FAMILY is the font family name. POINT-SIZE is the size of the
1738 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1739 width, weight and slant of the font. These symbols are the same as for
1740 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1741 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1742 giving the registry and encoding of the font.
1743 The result list is sorted according to the current setting of
1744 the face font sort order. */)
1746 Lisp_Object family
, frame
;
1748 Lisp_Object font_spec
, vec
;
1753 frame
= selected_frame
;
1754 CHECK_LIVE_FRAME (frame
);
1756 font_spec
= Ffont_spec (0, NULL
);
1759 CHECK_STRING (family
);
1760 font_parse_family_registry (family
, Qnil
, font_spec
);
1762 vec
= font_list_entities (frame
, font_spec
);
1763 nfonts
= ASIZE (vec
);
1768 for (i
= 0; i
< 4; i
++)
1769 switch (font_sort_order
[i
])
1772 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1773 case XLFD_POINT_SIZE
:
1774 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1776 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1778 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1780 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1781 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1782 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1783 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1785 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1786 compare_fonts_by_sort_order
);
1790 for (i
= nfonts
- 1; i
>= 0; --i
)
1792 Lisp_Object font
= AREF (vec
, i
);
1793 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1795 Lisp_Object spacing
;
1797 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1798 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1799 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1800 XFRAME (frame
)->resy
);
1801 ASET (v
, 2, make_number (point
));
1802 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1803 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1804 spacing
= Ffont_get (font
, QCspacing
);
1805 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1806 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1807 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1809 result
= Fcons (v
, result
);
1815 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1816 doc
: /* Return a list of the names of available fonts matching PATTERN.
1817 If optional arguments FACE and FRAME are specified, return only fonts
1818 the same size as FACE on FRAME.
1820 PATTERN should be a string containing a font name in the XLFD,
1821 Fontconfig, or GTK format. A font name given in the XLFD format may
1822 contain wildcard characters:
1823 the * character matches any substring, and
1824 the ? character matches any single character.
1825 PATTERN is case-insensitive.
1827 The return value is a list of strings, suitable as arguments to
1830 Fonts Emacs can't use may or may not be excluded
1831 even if they match PATTERN and FACE.
1832 The optional fourth argument MAXIMUM sets a limit on how many
1833 fonts to match. The first MAXIMUM fonts are reported.
1834 The optional fifth argument WIDTH, if specified, is a number of columns
1835 occupied by a character of a font. In that case, return only fonts
1836 the WIDTH times as wide as FACE on FRAME. */)
1837 (pattern
, face
, frame
, maximum
, width
)
1838 Lisp_Object pattern
, face
, frame
, maximum
, width
;
1844 CHECK_STRING (pattern
);
1846 if (! NILP (maximum
))
1847 CHECK_NATNUM (maximum
);
1850 CHECK_NUMBER (width
);
1852 /* We can't simply call check_x_frame because this function may be
1853 called before any frame is created. */
1855 frame
= selected_frame
;
1856 f
= frame_or_selected_frame (frame
, 2);
1857 if (! FRAME_WINDOW_P (f
))
1859 /* Perhaps we have not yet created any frame. */
1865 /* Determine the width standard for comparison with the fonts we find. */
1871 /* This is of limited utility since it works with character
1872 widths. Keep it for compatibility. --gerd. */
1873 int face_id
= lookup_named_face (f
, face
, 0);
1874 struct face
*face
= (face_id
< 0
1876 : FACE_FROM_ID (f
, face_id
));
1878 if (face
&& face
->font
)
1880 size
= face
->font
->pixel_size
;
1881 avgwidth
= face
->font
->average_width
;
1885 size
= FRAME_FONT (f
)->pixel_size
;
1886 avgwidth
= FRAME_FONT (f
)->average_width
;
1889 avgwidth
*= XINT (width
);
1893 Lisp_Object font_spec
;
1894 Lisp_Object args
[2], tail
;
1896 font_spec
= font_spec_from_name (pattern
);
1897 if (!FONTP (font_spec
))
1898 signal_error ("Invalid font name", pattern
);
1902 Ffont_put (font_spec
, QCsize
, make_number (size
));
1903 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1905 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1906 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1907 XSETCAR (tail
, Ffont_xlfd_name (XCAR (tail
), Qnil
));
1909 /* We don't have to check fontsets. */
1911 args
[1] = list_fontsets (f
, pattern
, size
);
1912 return Fnconc (2, args
);
1916 #endif /* HAVE_WINDOW_SYSTEM */
1919 /***********************************************************************
1921 ***********************************************************************/
1923 /* Access face attributes of face LFACE, a Lisp vector. */
1925 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1926 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1927 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1928 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1929 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1930 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1931 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1932 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1933 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1934 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1935 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1936 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1937 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1938 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1939 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1940 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1941 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1943 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1944 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1946 #define LFACEP(LFACE) \
1948 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
1949 && EQ (AREF (LFACE, 0), Qface))
1954 /* Check consistency of Lisp face attribute vector ATTRS. */
1957 check_lface_attrs (attrs
)
1960 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1961 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1962 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1963 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1964 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1965 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1966 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1967 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1968 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1969 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1970 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1971 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1972 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
1973 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
1974 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
1975 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
1976 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
1977 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
1978 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
1979 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
1980 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
1981 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
1982 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
1983 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
1984 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
1985 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
1986 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
1987 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
1988 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1989 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1990 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
1991 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
1992 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
1993 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
1994 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
1995 || STRINGP (attrs
[LFACE_BOX_INDEX
])
1996 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
1997 || CONSP (attrs
[LFACE_BOX_INDEX
]));
1998 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
1999 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
2000 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2001 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2002 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
2003 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2004 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2005 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
2006 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2007 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2008 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
2009 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2010 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2011 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2012 #ifdef HAVE_WINDOW_SYSTEM
2013 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2014 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
2015 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2016 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2017 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2018 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
2019 || FONTP (attrs
[LFACE_FONT_INDEX
]));
2020 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
2021 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
2026 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2034 xassert (LFACEP (lface
));
2035 check_lface_attrs (XVECTOR (lface
)->contents
);
2039 #else /* GLYPH_DEBUG == 0 */
2041 #define check_lface_attrs(attrs) (void) 0
2042 #define check_lface(lface) (void) 0
2044 #endif /* GLYPH_DEBUG == 0 */
2048 /* Face-merge cycle checking. */
2050 enum named_merge_point_kind
2052 NAMED_MERGE_POINT_NORMAL
,
2053 NAMED_MERGE_POINT_REMAP
2056 /* A `named merge point' is simply a point during face-merging where we
2057 look up a face by name. We keep a stack of which named lookups we're
2058 currently processing so that we can easily detect cycles, using a
2059 linked- list of struct named_merge_point structures, typically
2060 allocated on the stack frame of the named lookup functions which are
2061 active (so no consing is required). */
2062 struct named_merge_point
2064 Lisp_Object face_name
;
2065 enum named_merge_point_kind named_merge_point_kind
;
2066 struct named_merge_point
*prev
;
2070 /* If a face merging cycle is detected for FACE_NAME, return 0,
2071 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
2072 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
2073 pointed to by NAMED_MERGE_POINTS, and return 1. */
2076 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
2077 Lisp_Object face_name
,
2078 enum named_merge_point_kind named_merge_point_kind
,
2079 struct named_merge_point
**named_merge_points
)
2081 struct named_merge_point
*prev
;
2083 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
2084 if (EQ (face_name
, prev
->face_name
))
2086 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
2087 /* A cycle, so fail. */
2089 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
2090 /* A remap `hides ' any previous normal merge points
2091 (because the remap means that it's actually different face),
2092 so as we know the current merge point must be normal, we
2093 can just assume it's OK. */
2097 new_named_merge_point
->face_name
= face_name
;
2098 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
2099 new_named_merge_point
->prev
= *named_merge_points
;
2101 *named_merge_points
= new_named_merge_point
;
2108 #if 0 /* Seems to be unused. */
2110 internal_resolve_face_name (nargs
, args
)
2114 return Fget (args
[0], args
[1]);
2118 resolve_face_name_error (ignore
)
2125 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2126 to make it a symbol. If FACE_NAME is an alias for another face,
2127 return that face's name.
2129 Return default face in case of errors. */
2132 resolve_face_name (face_name
, signal_p
)
2133 Lisp_Object face_name
;
2136 Lisp_Object orig_face
;
2137 Lisp_Object tortoise
, hare
;
2139 if (STRINGP (face_name
))
2140 face_name
= intern (SDATA (face_name
));
2142 if (NILP (face_name
) || !SYMBOLP (face_name
))
2145 orig_face
= face_name
;
2146 tortoise
= hare
= face_name
;
2151 hare
= Fget (hare
, Qface_alias
);
2152 if (NILP (hare
) || !SYMBOLP (hare
))
2156 hare
= Fget (hare
, Qface_alias
);
2157 if (NILP (hare
) || !SYMBOLP (hare
))
2160 tortoise
= Fget (tortoise
, Qface_alias
);
2161 if (EQ (hare
, tortoise
))
2164 xsignal1 (Qcircular_list
, orig_face
);
2173 /* Return the face definition of FACE_NAME on frame F. F null means
2174 return the definition for new frames. FACE_NAME may be a string or
2175 a symbol (apparently Emacs 20.2 allowed strings as face names in
2176 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2177 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2178 is zero, value is nil if FACE_NAME is not a valid face name. */
2179 static INLINE Lisp_Object
2180 lface_from_face_name_no_resolve (f
, face_name
, signal_p
)
2182 Lisp_Object face_name
;
2188 lface
= assq_no_quit (face_name
, f
->face_alist
);
2190 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2193 lface
= XCDR (lface
);
2195 signal_error ("Invalid face", face_name
);
2197 check_lface (lface
);
2202 /* Return the face definition of FACE_NAME on frame F. F null means
2203 return the definition for new frames. FACE_NAME may be a string or
2204 a symbol (apparently Emacs 20.2 allowed strings as face names in
2205 face text properties; Ediff uses that). If FACE_NAME is an alias
2206 for another face, return that face's definition. If SIGNAL_P is
2207 non-zero, signal an error if FACE_NAME is not a valid face name.
2208 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2210 static INLINE Lisp_Object
2211 lface_from_face_name (f
, face_name
, signal_p
)
2213 Lisp_Object face_name
;
2216 face_name
= resolve_face_name (face_name
, signal_p
);
2217 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2221 /* Get face attributes of face FACE_NAME from frame-local faces on
2222 frame F. Store the resulting attributes in ATTRS which must point
2223 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2224 is non-zero, signal an error if FACE_NAME does not name a face.
2225 Otherwise, value is zero if FACE_NAME is not a face. */
2228 get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
)
2230 Lisp_Object face_name
;
2236 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2239 bcopy (XVECTOR (lface
)->contents
, attrs
,
2240 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2242 return !NILP (lface
);
2245 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2246 F. Store the resulting attributes in ATTRS which must point to a
2247 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2248 alias for another face, use that face's definition. If SIGNAL_P is
2249 non-zero, signal an error if FACE_NAME does not name a face.
2250 Otherwise, value is zero if FACE_NAME is not a face. */
2253 get_lface_attributes (f
, face_name
, attrs
, signal_p
, named_merge_points
)
2255 Lisp_Object face_name
;
2258 struct named_merge_point
*named_merge_points
;
2260 Lisp_Object face_remapping
;
2262 face_name
= resolve_face_name (face_name
, signal_p
);
2264 /* See if SYMBOL has been remapped to some other face (usually this
2265 is done buffer-locally). */
2266 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2267 if (CONSP (face_remapping
))
2269 struct named_merge_point named_merge_point
;
2271 if (push_named_merge_point (&named_merge_point
,
2272 face_name
, NAMED_MERGE_POINT_REMAP
,
2273 &named_merge_points
))
2277 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2278 attrs
[i
] = Qunspecified
;
2280 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2281 signal_p
, named_merge_points
);
2285 /* Default case, no remapping. */
2286 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2290 /* Non-zero if all attributes in face attribute vector ATTRS are
2291 specified, i.e. are non-nil. */
2294 lface_fully_specified_p (attrs
)
2299 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2300 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2301 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2304 return i
== LFACE_VECTOR_SIZE
;
2307 #ifdef HAVE_WINDOW_SYSTEM
2309 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2310 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2311 exception is `font' attribute. It is set to FONT_OBJECT regardless
2315 set_lface_from_font (f
, lface
, font_object
, force_p
)
2317 Lisp_Object lface
, font_object
;
2321 struct font
*font
= XFONT_OBJECT (font_object
);
2323 /* Set attributes only if unspecified, otherwise face defaults for
2324 new frames would never take effect. If the font doesn't have a
2325 specific property, set a normal value for that. */
2327 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2329 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2331 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2334 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2336 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2338 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2341 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2343 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2346 LFACE_HEIGHT (lface
) = make_number (pt
);
2349 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2351 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2352 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2354 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2356 val
= FONT_SLANT_FOR_FACE (font_object
);
2357 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2359 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2361 val
= FONT_WIDTH_FOR_FACE (font_object
);
2362 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2365 LFACE_FONT (lface
) = font_object
;
2369 #endif /* HAVE_WINDOW_SYSTEM */
2372 /* Merges the face height FROM with the face height TO, and returns the
2373 merged height. If FROM is an invalid height, then INVALID is
2374 returned instead. FROM and TO may be either absolute face heights or
2375 `relative' heights; the returned value is always an absolute height
2376 unless both FROM and TO are relative. */
2379 merge_face_heights (from
, to
, invalid
)
2380 Lisp_Object from
, to
, invalid
;
2382 Lisp_Object result
= invalid
;
2384 if (INTEGERP (from
))
2385 /* FROM is absolute, just use it as is. */
2387 else if (FLOATP (from
))
2388 /* FROM is a scale, use it to adjust TO. */
2391 /* relative X absolute => absolute */
2392 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2393 else if (FLOATP (to
))
2394 /* relative X relative => relative */
2395 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2396 else if (UNSPECIFIEDP (to
))
2399 else if (FUNCTIONP (from
))
2400 /* FROM is a function, which use to adjust TO. */
2402 /* Call function with current height as argument.
2403 From is the new height. */
2404 Lisp_Object args
[2];
2408 result
= safe_call (2, args
);
2410 /* Ensure that if TO was absolute, so is the result. */
2411 if (INTEGERP (to
) && !INTEGERP (result
))
2419 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2420 store the resulting attributes in TO, which must be already be
2421 completely specified and contain only absolute attributes. Every
2422 specified attribute of FROM overrides the corresponding attribute of
2423 TO; relative attributes in FROM are merged with the absolute value in
2424 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2425 loops in face inheritance/remapping; it should be 0 when called from
2429 merge_face_vectors (f
, from
, to
, named_merge_points
)
2431 Lisp_Object
*from
, *to
;
2432 struct named_merge_point
*named_merge_points
;
2436 /* If FROM inherits from some other faces, merge their attributes into
2437 TO before merging FROM's direct attributes. Note that an :inherit
2438 attribute of `unspecified' is the same as one of nil; we never
2439 merge :inherit attributes, so nil is more correct, but lots of
2440 other code uses `unspecified' as a generic value for face attributes. */
2441 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2442 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2443 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2445 i
= LFACE_FONT_INDEX
;
2446 if (!UNSPECIFIEDP (from
[i
]))
2448 if (!UNSPECIFIEDP (to
[i
]))
2449 to
[i
] = Fmerge_font_spec (from
[i
], to
[i
]);
2451 to
[i
] = Fcopy_font_spec (from
[i
]);
2452 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2455 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2456 if (!UNSPECIFIEDP (from
[i
]))
2458 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2460 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2461 font_clear_prop (to
, FONT_SIZE_INDEX
);
2463 else if (i
!= LFACE_FONT_INDEX
)
2466 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2467 font_clear_prop (to
,
2468 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2469 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2470 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2471 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2472 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2473 : FONT_SLANT_INDEX
));
2477 /* TO is always an absolute face, which should inherit from nothing.
2478 We blindly copy the :inherit attribute above and fix it up here. */
2479 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2482 /* Merge the named face FACE_NAME on frame F, into the vector of face
2483 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2484 inheritance. Returns true if FACE_NAME is a valid face name and
2485 merging succeeded. */
2488 merge_named_face (f
, face_name
, to
, named_merge_points
)
2490 Lisp_Object face_name
;
2492 struct named_merge_point
*named_merge_points
;
2494 struct named_merge_point named_merge_point
;
2496 if (push_named_merge_point (&named_merge_point
,
2497 face_name
, NAMED_MERGE_POINT_NORMAL
,
2498 &named_merge_points
))
2500 struct gcpro gcpro1
;
2501 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2502 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2506 GCPRO1 (named_merge_point
.face_name
);
2507 merge_face_vectors (f
, from
, to
, named_merge_points
);
2518 /* Merge face attributes from the lisp `face reference' FACE_REF on
2519 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2520 problems with FACE_REF cause an error message to be shown. Return
2521 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2522 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2523 list structure; it may be 0 for most callers.
2525 FACE_REF may be a single face specification or a list of such
2526 specifications. Each face specification can be:
2528 1. A symbol or string naming a Lisp face.
2530 2. A property list of the form (KEYWORD VALUE ...) where each
2531 KEYWORD is a face attribute name, and value is an appropriate value
2534 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2535 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2536 for compatibility with 20.2.
2538 Face specifications earlier in lists take precedence over later
2542 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
2544 Lisp_Object face_ref
;
2547 struct named_merge_point
*named_merge_points
;
2549 int ok
= 1; /* Succeed without an error? */
2551 if (CONSP (face_ref
))
2553 Lisp_Object first
= XCAR (face_ref
);
2555 if (EQ (first
, Qforeground_color
)
2556 || EQ (first
, Qbackground_color
))
2558 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2559 . COLOR). COLOR must be a string. */
2560 Lisp_Object color_name
= XCDR (face_ref
);
2561 Lisp_Object color
= first
;
2563 if (STRINGP (color_name
))
2565 if (EQ (color
, Qforeground_color
))
2566 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2568 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2573 add_to_log ("Invalid face color", color_name
, Qnil
);
2577 else if (SYMBOLP (first
)
2578 && *SDATA (SYMBOL_NAME (first
)) == ':')
2580 /* Assume this is the property list form. */
2581 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2583 Lisp_Object keyword
= XCAR (face_ref
);
2584 Lisp_Object value
= XCAR (XCDR (face_ref
));
2587 /* Specifying `unspecified' is a no-op. */
2588 if (EQ (value
, Qunspecified
))
2590 else if (EQ (keyword
, QCfamily
))
2592 if (STRINGP (value
))
2594 to
[LFACE_FAMILY_INDEX
] = value
;
2595 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2600 else if (EQ (keyword
, QCfoundry
))
2602 if (STRINGP (value
))
2604 to
[LFACE_FOUNDRY_INDEX
] = value
;
2605 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2610 else if (EQ (keyword
, QCheight
))
2612 Lisp_Object new_height
=
2613 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2615 if (! NILP (new_height
))
2617 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2618 font_clear_prop (to
, FONT_SIZE_INDEX
);
2623 else if (EQ (keyword
, QCweight
))
2625 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2627 to
[LFACE_WEIGHT_INDEX
] = value
;
2628 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2633 else if (EQ (keyword
, QCslant
))
2635 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2637 to
[LFACE_SLANT_INDEX
] = value
;
2638 font_clear_prop (to
, FONT_SLANT_INDEX
);
2643 else if (EQ (keyword
, QCunderline
))
2648 to
[LFACE_UNDERLINE_INDEX
] = value
;
2652 else if (EQ (keyword
, QCoverline
))
2657 to
[LFACE_OVERLINE_INDEX
] = value
;
2661 else if (EQ (keyword
, QCstrike_through
))
2666 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2670 else if (EQ (keyword
, QCbox
))
2673 value
= make_number (1);
2674 if (INTEGERP (value
)
2678 to
[LFACE_BOX_INDEX
] = value
;
2682 else if (EQ (keyword
, QCinverse_video
)
2683 || EQ (keyword
, QCreverse_video
))
2685 if (EQ (value
, Qt
) || NILP (value
))
2686 to
[LFACE_INVERSE_INDEX
] = value
;
2690 else if (EQ (keyword
, QCforeground
))
2692 if (STRINGP (value
))
2693 to
[LFACE_FOREGROUND_INDEX
] = value
;
2697 else if (EQ (keyword
, QCbackground
))
2699 if (STRINGP (value
))
2700 to
[LFACE_BACKGROUND_INDEX
] = value
;
2704 else if (EQ (keyword
, QCstipple
))
2706 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
2707 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2708 if (!NILP (pixmap_p
))
2709 to
[LFACE_STIPPLE_INDEX
] = value
;
2714 else if (EQ (keyword
, QCwidth
))
2716 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2718 to
[LFACE_SWIDTH_INDEX
] = value
;
2719 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2724 else if (EQ (keyword
, QCinherit
))
2726 /* This is not really very useful; it's just like a
2727 normal face reference. */
2728 if (! merge_face_ref (f
, value
, to
,
2729 err_msgs
, named_merge_points
))
2737 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2741 face_ref
= XCDR (XCDR (face_ref
));
2746 /* This is a list of face refs. Those at the beginning of the
2747 list take precedence over what follows, so we have to merge
2748 from the end backwards. */
2749 Lisp_Object next
= XCDR (face_ref
);
2752 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2754 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2760 /* FACE_REF ought to be a face name. */
2761 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2762 if (!ok
&& err_msgs
)
2763 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2770 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2771 Sinternal_make_lisp_face
, 1, 2, 0,
2772 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2773 If FACE was not known as a face before, create a new one.
2774 If optional argument FRAME is specified, make a frame-local face
2775 for that frame. Otherwise operate on the global face definition.
2776 Value is a vector of face attributes. */)
2778 Lisp_Object face
, frame
;
2780 Lisp_Object global_lface
, lface
;
2784 CHECK_SYMBOL (face
);
2785 global_lface
= lface_from_face_name (NULL
, face
, 0);
2789 CHECK_LIVE_FRAME (frame
);
2791 lface
= lface_from_face_name (f
, face
, 0);
2794 f
= NULL
, lface
= Qnil
;
2796 /* Add a global definition if there is none. */
2797 if (NILP (global_lface
))
2799 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2801 ASET (global_lface
, 0, Qface
);
2802 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2803 Vface_new_frame_defaults
);
2805 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2806 face id to Lisp face is given by the vector lface_id_to_name.
2807 The mapping from Lisp face to Lisp face id is given by the
2808 property `face' of the Lisp face name. */
2809 if (next_lface_id
== lface_id_to_name_size
)
2811 int new_size
= max (50, 2 * lface_id_to_name_size
);
2812 int sz
= new_size
* sizeof *lface_id_to_name
;
2813 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2814 lface_id_to_name_size
= new_size
;
2817 lface_id_to_name
[next_lface_id
] = face
;
2818 Fput (face
, Qface
, make_number (next_lface_id
));
2822 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2823 ASET (global_lface
, i
, Qunspecified
);
2825 /* Add a frame-local definition. */
2830 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2832 ASET (lface
, 0, Qface
);
2833 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2836 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2837 ASET (lface
, i
, Qunspecified
);
2840 lface
= global_lface
;
2842 /* Changing a named face means that all realized faces depending on
2843 that face are invalid. Since we cannot tell which realized faces
2844 depend on the face, make sure they are all removed. This is done
2845 by incrementing face_change_count. The next call to
2846 init_iterator will then free realized faces. */
2847 if (NILP (Fget (face
, Qface_no_inherit
)))
2849 ++face_change_count
;
2850 ++windows_or_buffers_changed
;
2853 xassert (LFACEP (lface
));
2854 check_lface (lface
);
2859 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2860 Sinternal_lisp_face_p
, 1, 2, 0,
2861 doc
: /* Return non-nil if FACE names a face.
2862 If optional second argument FRAME is non-nil, check for the
2863 existence of a frame-local face with name FACE on that frame.
2864 Otherwise check for the existence of a global face. */)
2866 Lisp_Object face
, frame
;
2870 face
= resolve_face_name (face
, 1);
2874 CHECK_LIVE_FRAME (frame
);
2875 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2878 lface
= lface_from_face_name (NULL
, face
, 0);
2884 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2885 Sinternal_copy_lisp_face
, 4, 4, 0,
2886 doc
: /* Copy face FROM to TO.
2887 If FRAME is t, copy the global face definition of FROM.
2888 Otherwise, copy the frame-local definition of FROM on FRAME.
2889 If NEW-FRAME is a frame, copy that data into the frame-local
2890 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2891 FRAME controls where the data is copied to.
2893 The value is TO. */)
2894 (from
, to
, frame
, new_frame
)
2895 Lisp_Object from
, to
, frame
, new_frame
;
2897 Lisp_Object lface
, copy
;
2899 CHECK_SYMBOL (from
);
2904 /* Copy global definition of FROM. We don't make copies of
2905 strings etc. because 20.2 didn't do it either. */
2906 lface
= lface_from_face_name (NULL
, from
, 1);
2907 copy
= Finternal_make_lisp_face (to
, Qnil
);
2911 /* Copy frame-local definition of FROM. */
2912 if (NILP (new_frame
))
2914 CHECK_LIVE_FRAME (frame
);
2915 CHECK_LIVE_FRAME (new_frame
);
2916 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2917 copy
= Finternal_make_lisp_face (to
, new_frame
);
2920 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
2921 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2923 /* Changing a named face means that all realized faces depending on
2924 that face are invalid. Since we cannot tell which realized faces
2925 depend on the face, make sure they are all removed. This is done
2926 by incrementing face_change_count. The next call to
2927 init_iterator will then free realized faces. */
2928 if (NILP (Fget (to
, Qface_no_inherit
)))
2930 ++face_change_count
;
2931 ++windows_or_buffers_changed
;
2938 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2939 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2940 doc
: /* Set attribute ATTR of FACE to VALUE.
2941 FRAME being a frame means change the face on that frame.
2942 FRAME nil means change the face of the selected frame.
2943 FRAME t means change the default for new frames.
2944 FRAME 0 means change the face on all frames, and change the default
2946 (face
, attr
, value
, frame
)
2947 Lisp_Object face
, attr
, value
, frame
;
2950 Lisp_Object old_value
= Qnil
;
2951 /* Set one of enum font_property_index (> 0) if ATTR is one of
2952 font-related attributes other than QCfont and QCfontset. */
2953 enum font_property_index prop_index
= 0;
2955 CHECK_SYMBOL (face
);
2956 CHECK_SYMBOL (attr
);
2958 face
= resolve_face_name (face
, 1);
2960 /* If FRAME is 0, change face on all frames, and change the
2961 default for new frames. */
2962 if (INTEGERP (frame
) && XINT (frame
) == 0)
2965 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
2966 FOR_EACH_FRAME (tail
, frame
)
2967 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
2971 /* Set lface to the Lisp attribute vector of FACE. */
2974 lface
= lface_from_face_name (NULL
, face
, 1);
2976 /* When updating face-new-frame-defaults, we put :ignore-defface
2977 where the caller wants `unspecified'. This forces the frame
2978 defaults to ignore the defface value. Otherwise, the defface
2979 will take effect, which is generally not what is intended.
2980 The value of that attribute will be inherited from some other
2981 face during face merging. See internal_merge_in_global_face. */
2982 if (UNSPECIFIEDP (value
))
2983 value
= Qignore_defface
;
2988 frame
= selected_frame
;
2990 CHECK_LIVE_FRAME (frame
);
2991 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2993 /* If a frame-local face doesn't exist yet, create one. */
2995 lface
= Finternal_make_lisp_face (face
, frame
);
2998 if (EQ (attr
, QCfamily
))
3000 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3002 CHECK_STRING (value
);
3003 if (SCHARS (value
) == 0)
3004 signal_error ("Invalid face family", value
);
3006 old_value
= LFACE_FAMILY (lface
);
3007 LFACE_FAMILY (lface
) = value
;
3008 prop_index
= FONT_FAMILY_INDEX
;
3010 else if (EQ (attr
, QCfoundry
))
3012 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3014 CHECK_STRING (value
);
3015 if (SCHARS (value
) == 0)
3016 signal_error ("Invalid face foundry", value
);
3018 old_value
= LFACE_FOUNDRY (lface
);
3019 LFACE_FOUNDRY (lface
) = value
;
3020 prop_index
= FONT_FOUNDRY_INDEX
;
3022 else if (EQ (attr
, QCheight
))
3024 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3026 if (EQ (face
, Qdefault
))
3028 /* The default face must have an absolute size. */
3029 if (!INTEGERP (value
) || XINT (value
) <= 0)
3030 signal_error ("Invalid default face height", value
);
3034 /* For non-default faces, do a test merge with a random
3035 height to see if VALUE's ok. */
3036 Lisp_Object test
= merge_face_heights (value
,
3039 if (!INTEGERP (test
) || XINT (test
) <= 0)
3040 signal_error ("Invalid face height", value
);
3044 old_value
= LFACE_HEIGHT (lface
);
3045 LFACE_HEIGHT (lface
) = value
;
3046 prop_index
= FONT_SIZE_INDEX
;
3048 else if (EQ (attr
, QCweight
))
3050 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3052 CHECK_SYMBOL (value
);
3053 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
3054 signal_error ("Invalid face weight", value
);
3056 old_value
= LFACE_WEIGHT (lface
);
3057 LFACE_WEIGHT (lface
) = value
;
3058 prop_index
= FONT_WEIGHT_INDEX
;
3060 else if (EQ (attr
, QCslant
))
3062 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3064 CHECK_SYMBOL (value
);
3065 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
3066 signal_error ("Invalid face slant", value
);
3068 old_value
= LFACE_SLANT (lface
);
3069 LFACE_SLANT (lface
) = value
;
3070 prop_index
= FONT_SLANT_INDEX
;
3072 else if (EQ (attr
, QCunderline
))
3074 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3075 if ((SYMBOLP (value
)
3077 && !EQ (value
, Qnil
))
3078 /* Underline color. */
3080 && SCHARS (value
) == 0))
3081 signal_error ("Invalid face underline", value
);
3083 old_value
= LFACE_UNDERLINE (lface
);
3084 LFACE_UNDERLINE (lface
) = value
;
3086 else if (EQ (attr
, QCoverline
))
3088 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3089 if ((SYMBOLP (value
)
3091 && !EQ (value
, Qnil
))
3092 /* Overline color. */
3094 && SCHARS (value
) == 0))
3095 signal_error ("Invalid face overline", value
);
3097 old_value
= LFACE_OVERLINE (lface
);
3098 LFACE_OVERLINE (lface
) = value
;
3100 else if (EQ (attr
, QCstrike_through
))
3102 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3103 if ((SYMBOLP (value
)
3105 && !EQ (value
, Qnil
))
3106 /* Strike-through color. */
3108 && SCHARS (value
) == 0))
3109 signal_error ("Invalid face strike-through", value
);
3111 old_value
= LFACE_STRIKE_THROUGH (lface
);
3112 LFACE_STRIKE_THROUGH (lface
) = value
;
3114 else if (EQ (attr
, QCbox
))
3118 /* Allow t meaning a simple box of width 1 in foreground color
3121 value
= make_number (1);
3123 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3125 else if (NILP (value
))
3127 else if (INTEGERP (value
))
3128 valid_p
= XINT (value
) != 0;
3129 else if (STRINGP (value
))
3130 valid_p
= SCHARS (value
) > 0;
3131 else if (CONSP (value
))
3147 if (EQ (k
, QCline_width
))
3149 if (!INTEGERP (v
) || XINT (v
) == 0)
3152 else if (EQ (k
, QCcolor
))
3154 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3157 else if (EQ (k
, QCstyle
))
3159 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3166 valid_p
= NILP (tem
);
3172 signal_error ("Invalid face box", value
);
3174 old_value
= LFACE_BOX (lface
);
3175 LFACE_BOX (lface
) = value
;
3177 else if (EQ (attr
, QCinverse_video
)
3178 || EQ (attr
, QCreverse_video
))
3180 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3182 CHECK_SYMBOL (value
);
3183 if (!EQ (value
, Qt
) && !NILP (value
))
3184 signal_error ("Invalid inverse-video face attribute value", value
);
3186 old_value
= LFACE_INVERSE (lface
);
3187 LFACE_INVERSE (lface
) = value
;
3189 else if (EQ (attr
, QCforeground
))
3191 /* Compatibility with 20.x. */
3193 value
= Qunspecified
;
3194 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3196 /* Don't check for valid color names here because it depends
3197 on the frame (display) whether the color will be valid
3198 when the face is realized. */
3199 CHECK_STRING (value
);
3200 if (SCHARS (value
) == 0)
3201 signal_error ("Empty foreground color value", value
);
3203 old_value
= LFACE_FOREGROUND (lface
);
3204 LFACE_FOREGROUND (lface
) = value
;
3206 else if (EQ (attr
, QCbackground
))
3208 /* Compatibility with 20.x. */
3210 value
= Qunspecified
;
3211 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3213 /* Don't check for valid color names here because it depends
3214 on the frame (display) whether the color will be valid
3215 when the face is realized. */
3216 CHECK_STRING (value
);
3217 if (SCHARS (value
) == 0)
3218 signal_error ("Empty background color value", value
);
3220 old_value
= LFACE_BACKGROUND (lface
);
3221 LFACE_BACKGROUND (lface
) = value
;
3223 else if (EQ (attr
, QCstipple
))
3225 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3226 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3228 && NILP (Fbitmap_spec_p (value
)))
3229 signal_error ("Invalid stipple attribute", value
);
3230 old_value
= LFACE_STIPPLE (lface
);
3231 LFACE_STIPPLE (lface
) = value
;
3232 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3234 else if (EQ (attr
, QCwidth
))
3236 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3238 CHECK_SYMBOL (value
);
3239 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3240 signal_error ("Invalid face width", value
);
3242 old_value
= LFACE_SWIDTH (lface
);
3243 LFACE_SWIDTH (lface
) = value
;
3244 prop_index
= FONT_WIDTH_INDEX
;
3246 else if (EQ (attr
, QCfont
))
3248 #ifdef HAVE_WINDOW_SYSTEM
3249 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3251 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3255 old_value
= LFACE_FONT (lface
);
3256 if (! FONTP (value
))
3258 if (STRINGP (value
))
3260 Lisp_Object name
= value
;
3261 int fontset
= fs_query_fontset (name
, 0);
3264 name
= fontset_ascii (fontset
);
3265 value
= font_spec_from_name (name
);
3267 signal_error ("Invalid font name", name
);
3270 signal_error ("Invalid font or font-spec", value
);
3273 f
= XFRAME (selected_frame
);
3276 if (! FONT_OBJECT_P (value
))
3278 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3279 Lisp_Object font_object
;
3281 font_object
= font_load_for_lface (f
, attrs
, value
);
3282 if (NILP (font_object
))
3283 signal_error ("Font not available", value
);
3284 value
= font_object
;
3286 set_lface_from_font (f
, lface
, value
, 1);
3289 LFACE_FONT (lface
) = value
;
3291 #endif /* HAVE_WINDOW_SYSTEM */
3293 else if (EQ (attr
, QCfontset
))
3295 #ifdef HAVE_WINDOW_SYSTEM
3296 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3300 old_value
= LFACE_FONTSET (lface
);
3301 tmp
= Fquery_fontset (value
, Qnil
);
3303 signal_error ("Invalid fontset name", value
);
3304 LFACE_FONTSET (lface
) = value
= tmp
;
3306 #endif /* HAVE_WINDOW_SYSTEM */
3308 else if (EQ (attr
, QCinherit
))
3311 if (SYMBOLP (value
))
3314 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3315 if (!SYMBOLP (XCAR (tail
)))
3318 LFACE_INHERIT (lface
) = value
;
3320 signal_error ("Invalid face inheritance", value
);
3322 else if (EQ (attr
, QCbold
))
3324 old_value
= LFACE_WEIGHT (lface
);
3325 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3326 prop_index
= FONT_WEIGHT_INDEX
;
3328 else if (EQ (attr
, QCitalic
))
3331 old_value
= LFACE_SLANT (lface
);
3332 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3333 prop_index
= FONT_SLANT_INDEX
;
3336 signal_error ("Invalid face attribute name", attr
);
3340 /* If a font-related attribute other than QCfont and QCfontset
3341 is specified, and if the original QCfont attribute has a font
3342 (font-spec or font-object), set the corresponding property in
3343 the font to nil so that the font selector doesn't think that
3344 the attribute is mandatory. Also, clear the average
3346 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3349 /* Changing a named face means that all realized faces depending on
3350 that face are invalid. Since we cannot tell which realized faces
3351 depend on the face, make sure they are all removed. This is done
3352 by incrementing face_change_count. The next call to
3353 init_iterator will then free realized faces. */
3355 && NILP (Fget (face
, Qface_no_inherit
))
3356 && NILP (Fequal (old_value
, value
)))
3358 ++face_change_count
;
3359 ++windows_or_buffers_changed
;
3362 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3363 && NILP (Fequal (old_value
, value
)))
3369 if (EQ (face
, Qdefault
))
3371 #ifdef HAVE_WINDOW_SYSTEM
3372 /* Changed font-related attributes of the `default' face are
3373 reflected in changed `font' frame parameters. */
3375 && (prop_index
|| EQ (attr
, QCfont
))
3376 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3377 set_font_frame_param (frame
, lface
);
3379 #endif /* HAVE_WINDOW_SYSTEM */
3381 if (EQ (attr
, QCforeground
))
3382 param
= Qforeground_color
;
3383 else if (EQ (attr
, QCbackground
))
3384 param
= Qbackground_color
;
3386 #ifdef HAVE_WINDOW_SYSTEM
3388 else if (EQ (face
, Qscroll_bar
))
3390 /* Changing the colors of `scroll-bar' sets frame parameters
3391 `scroll-bar-foreground' and `scroll-bar-background'. */
3392 if (EQ (attr
, QCforeground
))
3393 param
= Qscroll_bar_foreground
;
3394 else if (EQ (attr
, QCbackground
))
3395 param
= Qscroll_bar_background
;
3397 #endif /* not WINDOWSNT */
3398 else if (EQ (face
, Qborder
))
3400 /* Changing background color of `border' sets frame parameter
3402 if (EQ (attr
, QCbackground
))
3403 param
= Qborder_color
;
3405 else if (EQ (face
, Qcursor
))
3407 /* Changing background color of `cursor' sets frame parameter
3409 if (EQ (attr
, QCbackground
))
3410 param
= Qcursor_color
;
3412 else if (EQ (face
, Qmouse
))
3414 /* Changing background color of `mouse' sets frame parameter
3416 if (EQ (attr
, QCbackground
))
3417 param
= Qmouse_color
;
3419 #endif /* HAVE_WINDOW_SYSTEM */
3420 else if (EQ (face
, Qmenu
))
3422 /* Indicate that we have to update the menu bar when
3423 realizing faces on FRAME. FRAME t change the
3424 default for new frames. We do this by setting
3425 setting the flag in new face caches */
3428 struct frame
*f
= XFRAME (frame
);
3429 if (FRAME_FACE_CACHE (f
) == NULL
)
3430 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3431 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3434 menu_face_changed_default
= 1;
3440 /* Update `default-frame-alist', which is used for new frames. */
3442 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3445 /* Update the current frame's parameters. */
3448 cons
= XCAR (Vparam_value_alist
);
3449 XSETCAR (cons
, param
);
3450 XSETCDR (cons
, value
);
3451 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3460 #ifdef HAVE_WINDOW_SYSTEM
3462 /* Set the `font' frame parameter of FRAME determined from the
3463 font-object set in `default' face attributes LFACE. */
3466 set_font_frame_param (frame
, lface
)
3467 Lisp_Object frame
, lface
;
3469 struct frame
*f
= XFRAME (frame
);
3472 if (FRAME_WINDOW_P (f
)
3473 /* Don't do anything if the font is `unspecified'. This can
3474 happen during frame creation. */
3475 && (font
= LFACE_FONT (lface
),
3476 ! UNSPECIFIEDP (font
)))
3478 if (FONT_SPEC_P (font
))
3480 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3483 LFACE_FONT (lface
) = font
;
3485 f
->default_face_done_p
= 0;
3486 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3491 /* Update the corresponding face when frame parameter PARAM on frame F
3492 has been assigned the value NEW_VALUE. */
3495 update_face_from_frame_parameter (f
, param
, new_value
)
3497 Lisp_Object param
, new_value
;
3499 Lisp_Object face
= Qnil
;
3502 /* If there are no faces yet, give up. This is the case when called
3503 from Fx_create_frame, and we do the necessary things later in
3504 face-set-after-frame-defaults. */
3505 if (NILP (f
->face_alist
))
3508 if (EQ (param
, Qforeground_color
))
3511 lface
= lface_from_face_name (f
, face
, 1);
3512 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3513 ? new_value
: Qunspecified
);
3514 realize_basic_faces (f
);
3516 else if (EQ (param
, Qbackground_color
))
3520 /* Changing the background color might change the background
3521 mode, so that we have to load new defface specs.
3522 Call frame-update-face-colors to do that. */
3523 XSETFRAME (frame
, f
);
3524 call1 (Qframe_set_background_mode
, frame
);
3527 lface
= lface_from_face_name (f
, face
, 1);
3528 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3529 ? new_value
: Qunspecified
);
3530 realize_basic_faces (f
);
3532 else if (EQ (param
, Qborder_color
))
3535 lface
= lface_from_face_name (f
, face
, 1);
3536 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3537 ? new_value
: Qunspecified
);
3539 else if (EQ (param
, Qcursor_color
))
3542 lface
= lface_from_face_name (f
, face
, 1);
3543 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3544 ? new_value
: Qunspecified
);
3546 else if (EQ (param
, Qmouse_color
))
3549 lface
= lface_from_face_name (f
, face
, 1);
3550 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3551 ? new_value
: Qunspecified
);
3554 /* Changing a named face means that all realized faces depending on
3555 that face are invalid. Since we cannot tell which realized faces
3556 depend on the face, make sure they are all removed. This is done
3557 by incrementing face_change_count. The next call to
3558 init_iterator will then free realized faces. */
3560 && NILP (Fget (face
, Qface_no_inherit
)))
3562 ++face_change_count
;
3563 ++windows_or_buffers_changed
;
3568 /* Get the value of X resource RESOURCE, class CLASS for the display
3569 of frame FRAME. This is here because ordinary `x-get-resource'
3570 doesn't take a frame argument. */
3572 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3573 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3574 (resource
, class, frame
)
3575 Lisp_Object resource
, class, frame
;
3577 Lisp_Object value
= Qnil
;
3578 CHECK_STRING (resource
);
3579 CHECK_STRING (class);
3580 CHECK_LIVE_FRAME (frame
);
3582 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3583 resource
, class, Qnil
, Qnil
);
3589 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3590 If VALUE is "on" or "true", return t. If VALUE is "off" or
3591 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3592 error; if SIGNAL_P is zero, return 0. */
3595 face_boolean_x_resource_value (value
, signal_p
)
3599 Lisp_Object result
= make_number (0);
3601 xassert (STRINGP (value
));
3603 if (xstrcasecmp (SDATA (value
), "on") == 0
3604 || xstrcasecmp (SDATA (value
), "true") == 0)
3606 else if (xstrcasecmp (SDATA (value
), "off") == 0
3607 || xstrcasecmp (SDATA (value
), "false") == 0)
3609 else if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3610 result
= Qunspecified
;
3612 signal_error ("Invalid face attribute value from X resource", value
);
3618 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3619 Finternal_set_lisp_face_attribute_from_resource
,
3620 Sinternal_set_lisp_face_attribute_from_resource
,
3621 3, 4, 0, doc
: /* */)
3622 (face
, attr
, value
, frame
)
3623 Lisp_Object face
, attr
, value
, frame
;
3625 CHECK_SYMBOL (face
);
3626 CHECK_SYMBOL (attr
);
3627 CHECK_STRING (value
);
3629 if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3630 value
= Qunspecified
;
3631 else if (EQ (attr
, QCheight
))
3633 value
= Fstring_to_number (value
, make_number (10));
3634 if (XINT (value
) <= 0)
3635 signal_error ("Invalid face height from X resource", value
);
3637 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3638 value
= face_boolean_x_resource_value (value
, 1);
3639 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3640 value
= intern (SDATA (value
));
3641 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3642 value
= face_boolean_x_resource_value (value
, 1);
3643 else if (EQ (attr
, QCunderline
)
3644 || EQ (attr
, QCoverline
)
3645 || EQ (attr
, QCstrike_through
))
3647 Lisp_Object boolean_value
;
3649 /* If the result of face_boolean_x_resource_value is t or nil,
3650 VALUE does NOT specify a color. */
3651 boolean_value
= face_boolean_x_resource_value (value
, 0);
3652 if (SYMBOLP (boolean_value
))
3653 value
= boolean_value
;
3655 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3656 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3658 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3661 #endif /* HAVE_WINDOW_SYSTEM */
3664 /***********************************************************************
3666 ***********************************************************************/
3668 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3670 /* Make menus on frame F appear as specified by the `menu' face. */
3673 x_update_menu_appearance (f
)
3676 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3680 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3684 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3685 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3686 const char *myname
= SDATA (Vx_resource_name
);
3689 const char *popup_path
= "popup_menu";
3691 const char *popup_path
= "menu.popup";
3694 if (STRINGP (LFACE_FOREGROUND (lface
)))
3696 sprintf (line
, "%s.%s*foreground: %s",
3698 SDATA (LFACE_FOREGROUND (lface
)));
3699 XrmPutLineResource (&rdb
, line
);
3700 sprintf (line
, "%s.pane.menubar*foreground: %s",
3701 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3702 XrmPutLineResource (&rdb
, line
);
3706 if (STRINGP (LFACE_BACKGROUND (lface
)))
3708 sprintf (line
, "%s.%s*background: %s",
3710 SDATA (LFACE_BACKGROUND (lface
)));
3711 XrmPutLineResource (&rdb
, line
);
3712 sprintf (line
, "%s.pane.menubar*background: %s",
3713 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3714 XrmPutLineResource (&rdb
, line
);
3719 /* On Solaris 5.8, it's been reported that the `menu' face
3720 can be unspecified here, during startup. Why this
3721 happens remains unknown. -- cyd */
3722 && FONTP (LFACE_FONT (lface
))
3723 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3724 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3725 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3726 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3727 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3728 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3730 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3732 const char *suffix
= "List";
3735 #if defined HAVE_X_I18N
3737 const char *suffix
= "Set";
3739 const char *suffix
= "";
3746 #if defined HAVE_X_I18N
3747 extern char *xic_create_fontsetname
3748 P_ ((char *base_fontname
, Bool motif
));
3749 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3751 char *fontsetname
= (char *) SDATA (xlfd
);
3753 sprintf (line
, "%s.pane.menubar*font%s: %s",
3754 myname
, suffix
, fontsetname
);
3755 XrmPutLineResource (&rdb
, line
);
3756 sprintf (line
, "%s.%s*font%s: %s",
3757 myname
, popup_path
, suffix
, fontsetname
);
3758 XrmPutLineResource (&rdb
, line
);
3760 if (fontsetname
!= (char *) SDATA (xlfd
))
3761 xfree (fontsetname
);
3765 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3766 free_frame_menubar (f
);
3770 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3773 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3774 Sface_attribute_relative_p
,
3776 doc
: /* Check whether a face attribute value is relative.
3777 Specifically, this function returns t if the attribute ATTRIBUTE
3778 with the value VALUE is relative.
3780 A relative value is one that doesn't entirely override whatever is
3781 inherited from another face. For most possible attributes,
3782 the only relative value that users see is `unspecified'.
3783 However, for :height, floating point values are also relative. */)
3785 Lisp_Object attribute
, value
;
3787 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3789 else if (EQ (attribute
, QCheight
))
3790 return INTEGERP (value
) ? Qnil
: Qt
;
3795 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3797 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3798 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3799 the result will be absolute, otherwise it will be relative. */)
3800 (attribute
, value1
, value2
)
3801 Lisp_Object attribute
, value1
, value2
;
3803 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3805 else if (EQ (attribute
, QCheight
))
3806 return merge_face_heights (value1
, value2
, value1
);
3812 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3813 Sinternal_get_lisp_face_attribute
,
3815 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3816 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3817 face attribute name, signal an error.
3818 If the optional argument FRAME is given, report on face SYMBOL in that
3819 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3820 frames). If FRAME is omitted or nil, use the selected frame. */)
3821 (symbol
, keyword
, frame
)
3822 Lisp_Object symbol
, keyword
, frame
;
3824 Lisp_Object lface
, value
= Qnil
;
3826 CHECK_SYMBOL (symbol
);
3827 CHECK_SYMBOL (keyword
);
3830 lface
= lface_from_face_name (NULL
, symbol
, 1);
3834 frame
= selected_frame
;
3835 CHECK_LIVE_FRAME (frame
);
3836 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3839 if (EQ (keyword
, QCfamily
))
3840 value
= LFACE_FAMILY (lface
);
3841 else if (EQ (keyword
, QCfoundry
))
3842 value
= LFACE_FOUNDRY (lface
);
3843 else if (EQ (keyword
, QCheight
))
3844 value
= LFACE_HEIGHT (lface
);
3845 else if (EQ (keyword
, QCweight
))
3846 value
= LFACE_WEIGHT (lface
);
3847 else if (EQ (keyword
, QCslant
))
3848 value
= LFACE_SLANT (lface
);
3849 else if (EQ (keyword
, QCunderline
))
3850 value
= LFACE_UNDERLINE (lface
);
3851 else if (EQ (keyword
, QCoverline
))
3852 value
= LFACE_OVERLINE (lface
);
3853 else if (EQ (keyword
, QCstrike_through
))
3854 value
= LFACE_STRIKE_THROUGH (lface
);
3855 else if (EQ (keyword
, QCbox
))
3856 value
= LFACE_BOX (lface
);
3857 else if (EQ (keyword
, QCinverse_video
)
3858 || EQ (keyword
, QCreverse_video
))
3859 value
= LFACE_INVERSE (lface
);
3860 else if (EQ (keyword
, QCforeground
))
3861 value
= LFACE_FOREGROUND (lface
);
3862 else if (EQ (keyword
, QCbackground
))
3863 value
= LFACE_BACKGROUND (lface
);
3864 else if (EQ (keyword
, QCstipple
))
3865 value
= LFACE_STIPPLE (lface
);
3866 else if (EQ (keyword
, QCwidth
))
3867 value
= LFACE_SWIDTH (lface
);
3868 else if (EQ (keyword
, QCinherit
))
3869 value
= LFACE_INHERIT (lface
);
3870 else if (EQ (keyword
, QCfont
))
3871 value
= LFACE_FONT (lface
);
3872 else if (EQ (keyword
, QCfontset
))
3873 value
= LFACE_FONTSET (lface
);
3875 signal_error ("Invalid face attribute name", keyword
);
3877 if (IGNORE_DEFFACE_P (value
))
3878 return Qunspecified
;
3884 DEFUN ("internal-lisp-face-attribute-values",
3885 Finternal_lisp_face_attribute_values
,
3886 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3887 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3888 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3892 Lisp_Object result
= Qnil
;
3894 CHECK_SYMBOL (attr
);
3896 if (EQ (attr
, QCunderline
))
3897 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3898 else if (EQ (attr
, QCoverline
))
3899 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3900 else if (EQ (attr
, QCstrike_through
))
3901 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3902 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3903 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3909 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3910 Sinternal_merge_in_global_face
, 2, 2, 0,
3911 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3912 Default face attributes override any local face attributes. */)
3914 Lisp_Object face
, frame
;
3917 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3918 struct frame
*f
= XFRAME (frame
);
3920 CHECK_LIVE_FRAME (frame
);
3921 global_lface
= lface_from_face_name (NULL
, face
, 1);
3922 local_lface
= lface_from_face_name (f
, face
, 0);
3923 if (NILP (local_lface
))
3924 local_lface
= Finternal_make_lisp_face (face
, frame
);
3926 /* Make every specified global attribute override the local one.
3927 BEWARE!! This is only used from `face-set-after-frame-default' where
3928 the local frame is defined from default specs in `face-defface-spec'
3929 and those should be overridden by global settings. Hence the strange
3930 "global before local" priority. */
3931 lvec
= XVECTOR (local_lface
)->contents
;
3932 gvec
= XVECTOR (global_lface
)->contents
;
3933 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3934 if (IGNORE_DEFFACE_P (gvec
[i
]))
3935 lvec
[i
] = Qunspecified
;
3936 else if (! UNSPECIFIEDP (gvec
[i
]))
3939 /* If the default face was changed, update the face cache and the
3940 `font' frame parameter. */
3941 if (EQ (face
, Qdefault
))
3943 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3944 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3945 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3947 /* This can be NULL (e.g., in batch mode). */
3950 /* Ensure that the face vector is fully specified by merging
3951 the previously-cached vector. */
3952 bcopy (oldface
->lface
, attrs
, sizeof attrs
);
3953 merge_face_vectors (f
, lvec
, attrs
, 0);
3954 bcopy (attrs
, lvec
, sizeof attrs
);
3955 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3957 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3958 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3959 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3960 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3961 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3962 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3963 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3966 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3967 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3977 /* The following function is implemented for compatibility with 20.2.
3978 The function is used in x-resolve-fonts when it is asked to
3979 return fonts with the same size as the font of a face. This is
3980 done in fontset.el. */
3982 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3983 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3984 The font name is, by default, for ASCII characters.
3985 If the optional argument FRAME is given, report on face FACE in that frame.
3986 If FRAME is t, report on the defaults for face FACE (for new frames).
3987 The font default for a face is either nil, or a list
3988 of the form (bold), (italic) or (bold italic).
3989 If FRAME is omitted or nil, use the selected frame. And, in this case,
3990 if the optional third argument CHARACTER is given,
3991 return the font name used for CHARACTER. */)
3992 (face
, frame
, character
)
3993 Lisp_Object face
, frame
, character
;
3997 Lisp_Object result
= Qnil
;
3998 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4000 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4001 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4002 result
= Fcons (Qbold
, result
);
4004 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4005 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4006 result
= Fcons (Qitalic
, result
);
4012 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4013 int face_id
= lookup_named_face (f
, face
, 1);
4014 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4018 #ifdef HAVE_WINDOW_SYSTEM
4019 if (FRAME_WINDOW_P (f
) && !NILP (character
))
4021 CHECK_CHARACTER (character
);
4022 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
4023 face
= FACE_FROM_ID (f
, face_id
);
4026 ? face
->font
->props
[FONT_NAME_INDEX
]
4028 #else /* !HAVE_WINDOW_SYSTEM */
4029 return build_string (FRAME_MSDOS_P (f
)
4031 : FRAME_W32_P (f
) ? "w32term"
4038 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4039 all attributes are `equal'. Tries to be fast because this function
4040 is called quite often. */
4043 face_attr_equal_p (v1
, v2
)
4046 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4047 and the other is specified. */
4048 if (XTYPE (v1
) != XTYPE (v2
))
4057 if (SBYTES (v1
) != SBYTES (v2
))
4060 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4067 return !NILP (Fequal (v1
, v2
));
4072 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4073 all attributes are `equal'. Tries to be fast because this function
4074 is called quite often. */
4077 lface_equal_p (v1
, v2
)
4078 Lisp_Object
*v1
, *v2
;
4082 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4083 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4089 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4090 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4091 doc
: /* True if FACE1 and FACE2 are equal.
4092 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4093 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4094 If FRAME is omitted or nil, use the selected frame. */)
4095 (face1
, face2
, frame
)
4096 Lisp_Object face1
, face2
, frame
;
4100 Lisp_Object lface1
, lface2
;
4105 /* Don't use check_x_frame here because this function is called
4106 before X frames exist. At that time, if FRAME is nil,
4107 selected_frame will be used which is the frame dumped with
4108 Emacs. That frame is not an X frame. */
4109 f
= frame_or_selected_frame (frame
, 2);
4111 lface1
= lface_from_face_name (f
, face1
, 1);
4112 lface2
= lface_from_face_name (f
, face2
, 1);
4113 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4114 XVECTOR (lface2
)->contents
);
4115 return equal_p
? Qt
: Qnil
;
4119 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4120 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4121 doc
: /* True if FACE has no attribute specified.
4122 If the optional argument FRAME is given, report on face FACE in that frame.
4123 If FRAME is t, report on the defaults for face FACE (for new frames).
4124 If FRAME is omitted or nil, use the selected frame. */)
4126 Lisp_Object face
, frame
;
4133 frame
= selected_frame
;
4134 CHECK_LIVE_FRAME (frame
);
4138 lface
= lface_from_face_name (NULL
, face
, 1);
4140 lface
= lface_from_face_name (f
, face
, 1);
4142 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4143 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4146 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4150 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4152 doc
: /* Return an alist of frame-local faces defined on FRAME.
4153 For internal use only. */)
4157 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4158 return f
->face_alist
;
4162 /* Return a hash code for Lisp string STRING with case ignored. Used
4163 below in computing a hash value for a Lisp face. */
4165 static INLINE
unsigned
4166 hash_string_case_insensitive (string
)
4169 const unsigned char *s
;
4171 xassert (STRINGP (string
));
4172 for (s
= SDATA (string
); *s
; ++s
)
4173 hash
= (hash
<< 1) ^ tolower (*s
);
4178 /* Return a hash code for face attribute vector V. */
4180 static INLINE
unsigned
4184 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4185 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4186 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4187 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4188 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4189 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4190 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4191 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4195 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4196 considering charsets/registries). They do if they specify the same
4197 family, point size, weight, width, slant, and font. Both
4198 LFACE1 and LFACE2 must be fully-specified. */
4201 lface_same_font_attributes_p (lface1
, lface2
)
4202 Lisp_Object
*lface1
, *lface2
;
4204 xassert (lface_fully_specified_p (lface1
)
4205 && lface_fully_specified_p (lface2
));
4206 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4207 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4208 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4209 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4210 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4211 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4212 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4213 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4214 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4215 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4216 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4217 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4218 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4219 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4225 /***********************************************************************
4227 ***********************************************************************/
4229 /* Allocate and return a new realized face for Lisp face attribute
4232 static struct face
*
4233 make_realized_face (attr
)
4236 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4237 bzero (face
, sizeof *face
);
4238 face
->ascii_face
= face
;
4239 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4244 /* Free realized face FACE, including its X resources. FACE may
4248 free_realized_face (f
, face
)
4254 #ifdef HAVE_WINDOW_SYSTEM
4255 if (FRAME_WINDOW_P (f
))
4257 /* Free fontset of FACE if it is ASCII face. */
4258 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4259 free_face_fontset (f
, face
);
4264 font_done_for_face (f
, face
);
4265 x_free_gc (f
, face
->gc
);
4270 free_face_colors (f
, face
);
4271 x_destroy_bitmap (f
, face
->stipple
);
4273 #endif /* HAVE_WINDOW_SYSTEM */
4280 /* Prepare face FACE for subsequent display on frame F. This
4281 allocated GCs if they haven't been allocated yet or have been freed
4282 by clearing the face cache. */
4285 prepare_face_for_display (f
, face
)
4289 #ifdef HAVE_WINDOW_SYSTEM
4290 xassert (FRAME_WINDOW_P (f
));
4295 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4297 xgcv
.foreground
= face
->foreground
;
4298 xgcv
.background
= face
->background
;
4299 #ifdef HAVE_X_WINDOWS
4300 xgcv
.graphics_exposures
= False
;
4304 #ifdef HAVE_X_WINDOWS
4307 xgcv
.fill_style
= FillOpaqueStippled
;
4308 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4309 mask
|= GCFillStyle
| GCStipple
;
4312 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4314 font_prepare_for_face (f
, face
);
4317 #endif /* HAVE_WINDOW_SYSTEM */
4321 /* Returns the `distance' between the colors X and Y. */
4324 color_distance (x
, y
)
4327 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4328 Quoting from that paper:
4330 This formula has results that are very close to L*u*v* (with the
4331 modified lightness curve) and, more importantly, it is a more even
4332 algorithm: it does not have a range of colours where it suddenly
4333 gives far from optimal results.
4335 See <http://www.compuphase.com/cmetric.htm> for more info. */
4337 long r
= (x
->red
- y
->red
) >> 8;
4338 long g
= (x
->green
- y
->green
) >> 8;
4339 long b
= (x
->blue
- y
->blue
) >> 8;
4340 long r_mean
= (x
->red
+ y
->red
) >> 9;
4343 (((512 + r_mean
) * r
* r
) >> 8)
4345 + (((767 - r_mean
) * b
* b
) >> 8);
4349 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4350 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4351 COLOR1 and COLOR2 may be either strings containing the color name,
4352 or lists of the form (RED GREEN BLUE).
4353 If FRAME is unspecified or nil, the current frame is used. */)
4354 (color1
, color2
, frame
)
4355 Lisp_Object color1
, color2
, frame
;
4358 XColor cdef1
, cdef2
;
4361 frame
= selected_frame
;
4362 CHECK_LIVE_FRAME (frame
);
4365 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4366 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4367 signal_error ("Invalid color", color1
);
4368 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4369 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4370 signal_error ("Invalid color", color2
);
4372 return make_number (color_distance (&cdef1
, &cdef2
));
4376 /***********************************************************************
4378 ***********************************************************************/
4380 /* Return a new face cache for frame F. */
4382 static struct face_cache
*
4386 struct face_cache
*c
;
4389 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4390 bzero (c
, sizeof *c
);
4391 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4392 c
->buckets
= (struct face
**) xmalloc (size
);
4393 bzero (c
->buckets
, size
);
4395 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4397 c
->menu_face_changed_p
= menu_face_changed_default
;
4402 /* Clear out all graphics contexts for all realized faces, except for
4403 the basic faces. This should be done from time to time just to avoid
4404 keeping too many graphics contexts that are no longer needed. */
4408 struct face_cache
*c
;
4410 if (c
&& FRAME_WINDOW_P (c
->f
))
4412 #ifdef HAVE_WINDOW_SYSTEM
4414 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4416 struct face
*face
= c
->faces_by_id
[i
];
4417 if (face
&& face
->gc
)
4421 font_done_for_face (c
->f
, face
);
4422 x_free_gc (c
->f
, face
->gc
);
4427 #endif /* HAVE_WINDOW_SYSTEM */
4432 /* Free all realized faces in face cache C, including basic faces.
4433 C may be null. If faces are freed, make sure the frame's current
4434 matrix is marked invalid, so that a display caused by an expose
4435 event doesn't try to use faces we destroyed. */
4438 free_realized_faces (c
)
4439 struct face_cache
*c
;
4444 struct frame
*f
= c
->f
;
4446 /* We must block input here because we can't process X events
4447 safely while only some faces are freed, or when the frame's
4448 current matrix still references freed faces. */
4451 for (i
= 0; i
< c
->used
; ++i
)
4453 free_realized_face (f
, c
->faces_by_id
[i
]);
4454 c
->faces_by_id
[i
] = NULL
;
4458 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4459 bzero (c
->buckets
, size
);
4461 /* Must do a thorough redisplay the next time. Mark current
4462 matrices as invalid because they will reference faces freed
4463 above. This function is also called when a frame is
4464 destroyed. In this case, the root window of F is nil. */
4465 if (WINDOWP (f
->root_window
))
4467 clear_current_matrices (f
);
4468 ++windows_or_buffers_changed
;
4476 /* Free all realized faces that are using FONTSET on frame F. */
4479 free_realized_faces_for_fontset (f
, fontset
)
4483 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4487 /* We must block input here because we can't process X events safely
4488 while only some faces are freed, or when the frame's current
4489 matrix still references freed faces. */
4492 for (i
= 0; i
< cache
->used
; i
++)
4494 face
= cache
->faces_by_id
[i
];
4496 && face
->fontset
== fontset
)
4498 uncache_face (cache
, face
);
4499 free_realized_face (f
, face
);
4503 /* Must do a thorough redisplay the next time. Mark current
4504 matrices as invalid because they will reference faces freed
4505 above. This function is also called when a frame is destroyed.
4506 In this case, the root window of F is nil. */
4507 if (WINDOWP (f
->root_window
))
4509 clear_current_matrices (f
);
4510 ++windows_or_buffers_changed
;
4517 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4518 This is done after attributes of a named face have been changed,
4519 because we can't tell which realized faces depend on that face. */
4522 free_all_realized_faces (frame
)
4528 FOR_EACH_FRAME (rest
, frame
)
4529 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4532 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4536 /* Free face cache C and faces in it, including their X resources. */
4540 struct face_cache
*c
;
4544 free_realized_faces (c
);
4546 xfree (c
->faces_by_id
);
4552 /* Cache realized face FACE in face cache C. HASH is the hash value
4553 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4554 FACE), insert the new face to the beginning of the collision list
4555 of the face hash table of C. Otherwise, add the new face to the
4556 end of the collision list. This way, lookup_face can quickly find
4557 that a requested face is not cached. */
4560 cache_face (c
, face
, hash
)
4561 struct face_cache
*c
;
4565 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4569 if (face
->ascii_face
!= face
)
4571 struct face
*last
= c
->buckets
[i
];
4582 c
->buckets
[i
] = face
;
4583 face
->prev
= face
->next
= NULL
;
4589 face
->next
= c
->buckets
[i
];
4591 face
->next
->prev
= face
;
4592 c
->buckets
[i
] = face
;
4595 /* Find a free slot in C->faces_by_id and use the index of the free
4596 slot as FACE->id. */
4597 for (i
= 0; i
< c
->used
; ++i
)
4598 if (c
->faces_by_id
[i
] == NULL
)
4602 /* Maybe enlarge C->faces_by_id. */
4605 if (c
->used
== c
->size
)
4608 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4609 if (new_size
== c
->size
)
4610 abort (); /* Alternatives? ++kfs */
4611 sz
= new_size
* sizeof *c
->faces_by_id
;
4612 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4619 /* Check that FACE got a unique id. */
4624 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4625 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4631 #endif /* GLYPH_DEBUG */
4633 c
->faces_by_id
[i
] = face
;
4637 /* Remove face FACE from cache C. */
4640 uncache_face (c
, face
)
4641 struct face_cache
*c
;
4644 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4647 face
->prev
->next
= face
->next
;
4649 c
->buckets
[i
] = face
->next
;
4652 face
->next
->prev
= face
->prev
;
4654 c
->faces_by_id
[face
->id
] = NULL
;
4655 if (face
->id
== c
->used
)
4660 /* Look up a realized face with face attributes ATTR in the face cache
4661 of frame F. The face will be used to display ASCII characters.
4662 Value is the ID of the face found. If no suitable face is found,
4663 realize a new one. */
4666 lookup_face (f
, attr
)
4670 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4675 xassert (cache
!= NULL
);
4676 check_lface_attrs (attr
);
4678 /* Look up ATTR in the face cache. */
4679 hash
= lface_hash (attr
);
4680 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4682 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4684 if (face
->ascii_face
!= face
)
4686 /* There's no more ASCII face. */
4690 if (face
->hash
== hash
4691 && lface_equal_p (face
->lface
, attr
))
4695 /* If not found, realize a new face. */
4697 face
= realize_face (cache
, attr
, -1);
4700 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4701 #endif /* GLYPH_DEBUG */
4706 #ifdef HAVE_WINDOW_SYSTEM
4707 /* Look up a realized face that has the same attributes as BASE_FACE
4708 except for the font in the face cache of frame F. If FONT-OBJECT
4709 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4710 the face has no font. Value is the ID of the face found. If no
4711 suitable face is found, realize a new one. */
4714 face_for_font (f
, font_object
, base_face
)
4716 Lisp_Object font_object
;
4717 struct face
*base_face
;
4719 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4724 xassert (cache
!= NULL
);
4725 base_face
= base_face
->ascii_face
;
4726 hash
= lface_hash (base_face
->lface
);
4727 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4729 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4731 if (face
->ascii_face
== face
)
4733 if (face
->ascii_face
== base_face
4734 && face
->font
== (NILP (font_object
) ? NULL
4735 : XFONT_OBJECT (font_object
))
4736 && lface_equal_p (face
->lface
, base_face
->lface
))
4740 /* If not found, realize a new face. */
4741 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4744 #endif /* HAVE_WINDOW_SYSTEM */
4746 /* Return the face id of the realized face for named face SYMBOL on
4747 frame F suitable for displaying ASCII characters. Value is -1 if
4748 the face couldn't be determined, which might happen if the default
4749 face isn't realized and cannot be realized. */
4752 lookup_named_face (f
, symbol
, signal_p
)
4757 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4758 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4759 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4761 if (default_face
== NULL
)
4763 if (!realize_basic_faces (f
))
4765 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4766 if (default_face
== NULL
)
4767 abort (); /* realize_basic_faces must have set it up */
4770 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4773 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4774 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4776 return lookup_face (f
, attrs
);
4780 /* Return the display face-id of the basic face who's canonical face-id
4781 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4782 basic face has bee remapped via Vface_remapping_alist. This function is
4783 conservative: if something goes wrong, it will simply return FACE_ID
4784 rather than signal an error. */
4787 lookup_basic_face (f
, face_id
)
4791 Lisp_Object name
, mapping
;
4792 int remapped_face_id
;
4794 if (NILP (Vface_remapping_alist
))
4795 return face_id
; /* Nothing to do. */
4799 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4800 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4801 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4802 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4803 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4804 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4805 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4806 case BORDER_FACE_ID
: name
= Qborder
; break;
4807 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4808 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4809 case MENU_FACE_ID
: name
= Qmenu
; break;
4812 abort (); /* the caller is supposed to pass us a basic face id */
4815 /* Do a quick scan through Vface_remapping_alist, and return immediately
4816 if there is no remapping for face NAME. This is just an optimization
4817 for the very common no-remapping case. */
4818 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4820 return face_id
; /* Give up. */
4822 /* If there is a remapping entry, lookup the face using NAME, which will
4823 handle the remapping too. */
4824 remapped_face_id
= lookup_named_face (f
, name
, 0);
4825 if (remapped_face_id
< 0)
4826 return face_id
; /* Give up. */
4828 return remapped_face_id
;
4832 /* Return the ID of the realized ASCII face of Lisp face with ID
4833 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4836 ascii_face_of_lisp_face (f
, lface_id
)
4842 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4844 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4845 face_id
= lookup_named_face (f
, face_name
, 1);
4854 /* Return a face for charset ASCII that is like the face with id
4855 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4856 STEPS < 0 means larger. Value is the id of the face. */
4859 smaller_face (f
, face_id
, steps
)
4863 #ifdef HAVE_WINDOW_SYSTEM
4865 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4866 int pt
, last_pt
, last_height
;
4869 struct face
*new_face
;
4871 /* If not called for an X frame, just return the original face. */
4872 if (FRAME_TERMCAP_P (f
))
4875 /* Try in increments of 1/2 pt. */
4876 delta
= steps
< 0 ? 5 : -5;
4877 steps
= eabs (steps
);
4879 face
= FACE_FROM_ID (f
, face_id
);
4880 bcopy (face
->lface
, attrs
, sizeof attrs
);
4881 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4882 new_face_id
= face_id
;
4883 last_height
= FONT_HEIGHT (face
->font
);
4887 /* Give up if we cannot find a font within 10pt. */
4888 && eabs (last_pt
- pt
) < 100)
4890 /* Look up a face for a slightly smaller/larger font. */
4892 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4893 new_face_id
= lookup_face (f
, attrs
);
4894 new_face
= FACE_FROM_ID (f
, new_face_id
);
4896 /* If height changes, count that as one step. */
4897 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4898 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4901 last_height
= FONT_HEIGHT (new_face
->font
);
4908 #else /* not HAVE_WINDOW_SYSTEM */
4912 #endif /* not HAVE_WINDOW_SYSTEM */
4916 /* Return a face for charset ASCII that is like the face with id
4917 FACE_ID on frame F, but has height HEIGHT. */
4920 face_with_height (f
, face_id
, height
)
4925 #ifdef HAVE_WINDOW_SYSTEM
4927 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4929 if (FRAME_TERMCAP_P (f
)
4933 face
= FACE_FROM_ID (f
, face_id
);
4934 bcopy (face
->lface
, attrs
, sizeof attrs
);
4935 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4936 face_id
= lookup_face (f
, attrs
);
4937 #endif /* HAVE_WINDOW_SYSTEM */
4943 /* Return the face id of the realized face for named face SYMBOL on
4944 frame F suitable for displaying ASCII characters, and use
4945 attributes of the face FACE_ID for attributes that aren't
4946 completely specified by SYMBOL. This is like lookup_named_face,
4947 except that the default attributes come from FACE_ID, not from the
4948 default face. FACE_ID is assumed to be already realized. */
4951 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
4957 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4958 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4959 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4964 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4967 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4968 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4969 return lookup_face (f
, attrs
);
4972 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4973 Sface_attributes_as_vector
, 1, 1, 0,
4974 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4979 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4981 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4988 /***********************************************************************
4989 Face capability testing
4990 ***********************************************************************/
4993 /* If the distance (as returned by color_distance) between two colors is
4994 less than this, then they are considered the same, for determining
4995 whether a color is supported or not. The range of values is 0-65535. */
4997 #define TTY_SAME_COLOR_THRESHOLD 10000
4999 #ifdef HAVE_WINDOW_SYSTEM
5001 /* Return non-zero if all the face attributes in ATTRS are supported
5002 on the window-system frame F.
5004 The definition of `supported' is somewhat heuristic, but basically means
5005 that a face containing all the attributes in ATTRS, when merged with the
5006 default face for display, can be represented in a way that's
5008 \(1) different in appearance than the default face, and
5009 \(2) `close in spirit' to what the attributes specify, if not exact. */
5012 x_supports_face_attributes_p (f
, attrs
, def_face
)
5015 struct face
*def_face
;
5017 Lisp_Object
*def_attrs
= def_face
->lface
;
5019 /* Check that other specified attributes are different that the default
5021 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5022 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5023 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5024 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5025 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5026 def_attrs
[LFACE_INVERSE_INDEX
]))
5027 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5028 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5029 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5030 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5031 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5032 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5033 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5034 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5035 def_attrs
[LFACE_STIPPLE_INDEX
]))
5036 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5037 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5038 def_attrs
[LFACE_OVERLINE_INDEX
]))
5039 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5040 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5041 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5042 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5043 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5044 def_attrs
[LFACE_BOX_INDEX
])))
5047 /* Check font-related attributes, as those are the most commonly
5048 "unsupported" on a window-system (because of missing fonts). */
5049 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5050 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5051 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5052 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5053 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5054 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
5058 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5061 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5063 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5065 face_id
= lookup_face (f
, merged_attrs
);
5066 face
= FACE_FROM_ID (f
, face_id
);
5069 error ("Cannot make face");
5071 /* If the font is the same, or no font is found, then not
5073 if (face
->font
== def_face
->font
5076 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
5077 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
5081 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
5082 || face
->font
->driver
->case_sensitive
)
5084 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
5085 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
5086 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
5087 s2
, make_number (0), Qnil
, Qt
), Qt
))
5093 /* Everything checks out, this face is supported. */
5097 #endif /* HAVE_WINDOW_SYSTEM */
5099 /* Return non-zero if all the face attributes in ATTRS are supported
5102 The definition of `supported' is somewhat heuristic, but basically means
5103 that a face containing all the attributes in ATTRS, when merged
5104 with the default face for display, can be represented in a way that's
5106 \(1) different in appearance than the default face, and
5107 \(2) `close in spirit' to what the attributes specify, if not exact.
5109 Point (2) implies that a `:weight black' attribute will be satisfied
5110 by any terminal that can display bold, and a `:foreground "yellow"' as
5111 long as the terminal can display a yellowish color, but `:slant italic'
5112 will _not_ be satisfied by the tty display code's automatic
5113 substitution of a `dim' face for italic. */
5116 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5119 struct face
*def_face
;
5122 Lisp_Object val
, fg
, bg
;
5123 XColor fg_tty_color
, fg_std_color
;
5124 XColor bg_tty_color
, bg_std_color
;
5125 unsigned test_caps
= 0;
5126 Lisp_Object
*def_attrs
= def_face
->lface
;
5129 /* First check some easy-to-check stuff; ttys support none of the
5130 following attributes, so we can just return false if any are requested
5131 (even if `nominal' values are specified, we should still return false,
5132 as that will be the same value that the default face uses). We
5133 consider :slant unsupportable on ttys, even though the face code
5134 actually `fakes' them using a dim attribute if possible. This is
5135 because the faked result is too different from what the face
5137 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5138 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5139 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5140 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5141 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5142 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5143 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5144 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5145 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5149 /* Test for terminal `capabilities' (non-color character attributes). */
5151 /* font weight (bold/dim) */
5152 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5155 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
5159 if (def_weight
> 100)
5160 return 0; /* same as default */
5161 test_caps
= TTY_CAP_BOLD
;
5163 else if (weight
< 100)
5165 if (def_weight
< 100)
5166 return 0; /* same as default */
5167 test_caps
= TTY_CAP_DIM
;
5169 else if (def_weight
== 100)
5170 return 0; /* same as default */
5174 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5175 if (!UNSPECIFIEDP (val
))
5178 return 0; /* ttys can't use colored underlines */
5179 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5180 return 0; /* same as default */
5182 test_caps
|= TTY_CAP_UNDERLINE
;
5186 val
= attrs
[LFACE_INVERSE_INDEX
];
5187 if (!UNSPECIFIEDP (val
))
5189 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
5190 return 0; /* same as default */
5192 test_caps
|= TTY_CAP_INVERSE
;
5196 /* Color testing. */
5198 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5199 we use them when calling `tty_capable_p' below, even if the face
5200 specifies no colors. */
5201 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5202 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5204 /* Check if foreground color is close enough. */
5205 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5208 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5210 if (face_attr_equal_p (fg
, def_fg
))
5211 return 0; /* same as default */
5212 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5213 return 0; /* not a valid color */
5214 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5215 > TTY_SAME_COLOR_THRESHOLD
)
5216 return 0; /* displayed color is too different */
5218 /* Make sure the color is really different than the default. */
5220 XColor def_fg_color
;
5221 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5222 && (color_distance (&fg_tty_color
, &def_fg_color
)
5223 <= TTY_SAME_COLOR_THRESHOLD
))
5228 /* Check if background color is close enough. */
5229 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5232 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5234 if (face_attr_equal_p (bg
, def_bg
))
5235 return 0; /* same as default */
5236 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5237 return 0; /* not a valid color */
5238 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5239 > TTY_SAME_COLOR_THRESHOLD
)
5240 return 0; /* displayed color is too different */
5242 /* Make sure the color is really different than the default. */
5244 XColor def_bg_color
;
5245 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5246 && (color_distance (&bg_tty_color
, &def_bg_color
)
5247 <= TTY_SAME_COLOR_THRESHOLD
))
5252 /* If both foreground and background are requested, see if the
5253 distance between them is OK. We just check to see if the distance
5254 between the tty's foreground and background is close enough to the
5255 distance between the standard foreground and background. */
5256 if (STRINGP (fg
) && STRINGP (bg
))
5259 = (color_distance (&fg_std_color
, &bg_std_color
)
5260 - color_distance (&fg_tty_color
, &bg_tty_color
));
5261 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5262 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5267 /* See if the capabilities we selected above are supported, with the
5269 if (test_caps
!= 0 &&
5270 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5274 /* Hmmm, everything checks out, this terminal must support this face. */
5279 DEFUN ("display-supports-face-attributes-p",
5280 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5282 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5283 The optional argument DISPLAY can be a display name, a frame, or
5284 nil (meaning the selected frame's display).
5286 The definition of `supported' is somewhat heuristic, but basically means
5287 that a face containing all the attributes in ATTRIBUTES, when merged
5288 with the default face for display, can be represented in a way that's
5290 \(1) different in appearance than the default face, and
5291 \(2) `close in spirit' to what the attributes specify, if not exact.
5293 Point (2) implies that a `:weight black' attribute will be satisfied by
5294 any display that can display bold, and a `:foreground \"yellow\"' as long
5295 as it can display a yellowish color, but `:slant italic' will _not_ be
5296 satisfied by the tty display code's automatic substitution of a `dim'
5297 face for italic. */)
5298 (attributes
, display
)
5299 Lisp_Object attributes
, display
;
5301 int supports
= 0, i
;
5304 struct face
*def_face
;
5305 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5307 if (noninteractive
|| !initialized
)
5308 /* We may not be able to access low-level face information in batch
5309 mode, or before being dumped, and this function is not going to
5310 be very useful in those cases anyway, so just give up. */
5314 frame
= selected_frame
;
5315 else if (FRAMEP (display
))
5319 /* Find any frame on DISPLAY. */
5320 Lisp_Object fl_tail
;
5323 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5325 frame
= XCAR (fl_tail
);
5326 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5327 XFRAME (frame
)->param_alist
)),
5333 CHECK_LIVE_FRAME (frame
);
5336 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5337 attrs
[i
] = Qunspecified
;
5338 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5340 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5341 if (def_face
== NULL
)
5343 if (! realize_basic_faces (f
))
5344 error ("Cannot realize default face");
5345 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5346 if (def_face
== NULL
)
5347 abort (); /* realize_basic_faces must have set it up */
5350 /* Dispatch to the appropriate handler. */
5351 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5352 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5353 #ifdef HAVE_WINDOW_SYSTEM
5355 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5358 return supports
? Qt
: Qnil
;
5362 /***********************************************************************
5364 ***********************************************************************/
5366 DEFUN ("internal-set-font-selection-order",
5367 Finternal_set_font_selection_order
,
5368 Sinternal_set_font_selection_order
, 1, 1, 0,
5369 doc
: /* Set font selection order for face font selection to ORDER.
5370 ORDER must be a list of length 4 containing the symbols `:width',
5371 `:height', `:weight', and `:slant'. Face attributes appearing
5372 first in ORDER are matched first, e.g. if `:height' appears before
5373 `:weight' in ORDER, font selection first tries to find a font with
5374 a suitable height, and then tries to match the font weight.
5381 int indices
[DIM (font_sort_order
)];
5384 bzero (indices
, sizeof indices
);
5388 CONSP (list
) && i
< DIM (indices
);
5389 list
= XCDR (list
), ++i
)
5391 Lisp_Object attr
= XCAR (list
);
5394 if (EQ (attr
, QCwidth
))
5396 else if (EQ (attr
, QCheight
))
5397 xlfd
= XLFD_POINT_SIZE
;
5398 else if (EQ (attr
, QCweight
))
5400 else if (EQ (attr
, QCslant
))
5405 if (indices
[i
] != 0)
5410 if (!NILP (list
) || i
!= DIM (indices
))
5411 signal_error ("Invalid font sort order", order
);
5412 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5413 if (indices
[i
] == 0)
5414 signal_error ("Invalid font sort order", order
);
5416 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5418 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5419 free_all_realized_faces (Qnil
);
5422 font_update_sort_order (font_sort_order
);
5428 DEFUN ("internal-set-alternative-font-family-alist",
5429 Finternal_set_alternative_font_family_alist
,
5430 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5431 doc
: /* Define alternative font families to try in face font selection.
5432 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5433 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5434 be found. Value is ALIST. */)
5438 Lisp_Object entry
, tail
, tail2
;
5441 alist
= Fcopy_sequence (alist
);
5442 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5444 entry
= XCAR (tail
);
5446 entry
= Fcopy_sequence (entry
);
5447 XSETCAR (tail
, entry
);
5448 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5449 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5452 Vface_alternative_font_family_alist
= alist
;
5453 free_all_realized_faces (Qnil
);
5458 DEFUN ("internal-set-alternative-font-registry-alist",
5459 Finternal_set_alternative_font_registry_alist
,
5460 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5461 doc
: /* Define alternative font registries to try in face font selection.
5462 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5463 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5464 be found. Value is ALIST. */)
5468 Lisp_Object entry
, tail
, tail2
;
5471 alist
= Fcopy_sequence (alist
);
5472 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5474 entry
= XCAR (tail
);
5476 entry
= Fcopy_sequence (entry
);
5477 XSETCAR (tail
, entry
);
5478 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5479 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5481 Vface_alternative_font_registry_alist
= alist
;
5482 free_all_realized_faces (Qnil
);
5487 #ifdef HAVE_WINDOW_SYSTEM
5489 /* Ignore the difference of font point size less than this value. */
5491 #define FONT_POINT_SIZE_QUANTUM 5
5493 /* Return the fontset id of the base fontset name or alias name given
5494 by the fontset attribute of ATTRS. Value is -1 if the fontset
5495 attribute of ATTRS doesn't name a fontset. */
5498 face_fontset (attrs
)
5503 name
= attrs
[LFACE_FONTSET_INDEX
];
5504 if (!STRINGP (name
))
5506 return fs_query_fontset (name
, 0);
5509 #endif /* HAVE_WINDOW_SYSTEM */
5513 /***********************************************************************
5515 ***********************************************************************/
5517 /* Realize basic faces on frame F. Value is zero if frame parameters
5518 of F don't contain enough information needed to realize the default
5522 realize_basic_faces (f
)
5526 int count
= SPECPDL_INDEX ();
5528 /* Block input here so that we won't be surprised by an X expose
5529 event, for instance, without having the faces set up. */
5531 specbind (Qscalable_fonts_allowed
, Qt
);
5533 if (realize_default_face (f
))
5535 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5536 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5537 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5538 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5539 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5540 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5541 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5542 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5543 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5544 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5545 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5547 /* Reflect changes in the `menu' face in menu bars. */
5548 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5550 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5551 #ifdef USE_X_TOOLKIT
5552 if (FRAME_WINDOW_P (f
))
5553 x_update_menu_appearance (f
);
5560 unbind_to (count
, Qnil
);
5566 /* Realize the default face on frame F. If the face is not fully
5567 specified, make it fully-specified. Attributes of the default face
5568 that are not explicitly specified are taken from frame parameters. */
5571 realize_default_face (f
)
5574 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5576 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5579 /* If the `default' face is not yet known, create it. */
5580 lface
= lface_from_face_name (f
, Qdefault
, 0);
5584 XSETFRAME (frame
, f
);
5585 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5588 #ifdef HAVE_WINDOW_SYSTEM
5589 if (FRAME_WINDOW_P (f
))
5591 Lisp_Object font_object
;
5593 XSETFONT (font_object
, FRAME_FONT (f
));
5594 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5595 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5596 f
->default_face_done_p
= 1;
5598 #endif /* HAVE_WINDOW_SYSTEM */
5600 if (!FRAME_WINDOW_P (f
))
5602 LFACE_FAMILY (lface
) = build_string ("default");
5603 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5604 LFACE_SWIDTH (lface
) = Qnormal
;
5605 LFACE_HEIGHT (lface
) = make_number (1);
5606 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5607 LFACE_WEIGHT (lface
) = Qnormal
;
5608 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5609 LFACE_SLANT (lface
) = Qnormal
;
5610 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5611 LFACE_FONTSET (lface
) = Qnil
;
5614 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5615 LFACE_UNDERLINE (lface
) = Qnil
;
5617 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5618 LFACE_OVERLINE (lface
) = Qnil
;
5620 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5621 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5623 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5624 LFACE_BOX (lface
) = Qnil
;
5626 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5627 LFACE_INVERSE (lface
) = Qnil
;
5629 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5631 /* This function is called so early that colors are not yet
5632 set in the frame parameter list. */
5633 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5635 if (CONSP (color
) && STRINGP (XCDR (color
)))
5636 LFACE_FOREGROUND (lface
) = XCDR (color
);
5637 else if (FRAME_WINDOW_P (f
))
5639 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5640 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5645 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5647 /* This function is called so early that colors are not yet
5648 set in the frame parameter list. */
5649 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5650 if (CONSP (color
) && STRINGP (XCDR (color
)))
5651 LFACE_BACKGROUND (lface
) = XCDR (color
);
5652 else if (FRAME_WINDOW_P (f
))
5654 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5655 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5660 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5661 LFACE_STIPPLE (lface
) = Qnil
;
5663 /* Realize the face; it must be fully-specified now. */
5664 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5665 check_lface (lface
);
5666 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5667 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5669 #ifdef HAVE_WINDOW_SYSTEM
5670 #ifdef HAVE_X_WINDOWS
5671 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5673 /* This can happen when making a frame on a display that does
5674 not support the default font. */
5678 /* Otherwise, the font specified for the frame was not
5679 acceptable as a font for the default face (perhaps because
5680 auto-scaled fonts are rejected), so we must adjust the frame
5682 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5684 #endif /* HAVE_X_WINDOWS */
5685 #endif /* HAVE_WINDOW_SYSTEM */
5690 /* Realize basic faces other than the default face in face cache C.
5691 SYMBOL is the face name, ID is the face id the realized face must
5692 have. The default face must have been realized already. */
5695 realize_named_face (f
, symbol
, id
)
5700 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5701 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5702 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5703 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5704 struct face
*new_face
;
5706 /* The default face must exist and be fully specified. */
5707 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5708 check_lface_attrs (attrs
);
5709 xassert (lface_fully_specified_p (attrs
));
5711 /* If SYMBOL isn't know as a face, create it. */
5715 XSETFRAME (frame
, f
);
5716 lface
= Finternal_make_lisp_face (symbol
, frame
);
5719 /* Merge SYMBOL's face with the default face. */
5720 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5721 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5723 /* Realize the face. */
5724 new_face
= realize_face (c
, attrs
, id
);
5728 /* Realize the fully-specified face with attributes ATTRS in face
5729 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5730 non-negative, it is an ID of face to remove before caching the new
5731 face. Value is a pointer to the newly created realized face. */
5733 static struct face
*
5734 realize_face (cache
, attrs
, former_face_id
)
5735 struct face_cache
*cache
;
5741 /* LFACE must be fully specified. */
5742 xassert (cache
!= NULL
);
5743 check_lface_attrs (attrs
);
5745 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5747 /* Remove the former face. */
5748 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5749 uncache_face (cache
, former_face
);
5750 free_realized_face (cache
->f
, former_face
);
5753 if (FRAME_WINDOW_P (cache
->f
))
5754 face
= realize_x_face (cache
, attrs
);
5755 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5756 face
= realize_tty_face (cache
, attrs
);
5757 else if (FRAME_INITIAL_P (cache
->f
))
5759 /* Create a dummy face. */
5760 face
= make_realized_face (attrs
);
5765 /* Insert the new face. */
5766 cache_face (cache
, face
, lface_hash (attrs
));
5771 #ifdef HAVE_WINDOW_SYSTEM
5772 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5773 same attributes as BASE_FACE except for the font on frame F.
5774 FONT-OBJECT may be nil, in which case, realized a face of
5777 static struct face
*
5778 realize_non_ascii_face (f
, font_object
, base_face
)
5780 Lisp_Object font_object
;
5781 struct face
*base_face
;
5783 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5786 face
= (struct face
*) xmalloc (sizeof *face
);
5791 = (! NILP (font_object
)
5792 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5793 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5795 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5796 face
->colors_copied_bitwise_p
= 1;
5797 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5800 cache_face (cache
, face
, face
->hash
);
5804 #endif /* HAVE_WINDOW_SYSTEM */
5807 /* Realize the fully-specified face with attributes ATTRS in face
5808 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5809 the new face doesn't share font with the default face, a fontname
5810 is allocated from the heap and set in `font_name' of the new face,
5811 but it is not yet loaded here. Value is a pointer to the newly
5812 created realized face. */
5814 static struct face
*
5815 realize_x_face (cache
, attrs
)
5816 struct face_cache
*cache
;
5819 struct face
*face
= NULL
;
5820 #ifdef HAVE_WINDOW_SYSTEM
5821 struct face
*default_face
;
5823 Lisp_Object stipple
, overline
, strike_through
, box
;
5825 xassert (FRAME_WINDOW_P (cache
->f
));
5827 /* Allocate a new realized face. */
5828 face
= make_realized_face (attrs
);
5829 face
->ascii_face
= face
;
5833 /* Determine the font to use. Most of the time, the font will be
5834 the same as the font of the default face, so try that first. */
5835 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5837 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5839 face
->font
= default_face
->font
;
5841 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5845 /* If the face attribute ATTRS specifies a fontset, use it as
5846 the base of a new realized fontset. Otherwise, use the same
5847 base fontset as of the default face. The base determines
5848 registry and encoding of a font. It may also determine
5849 foundry and family. The other fields of font name pattern
5850 are constructed from ATTRS. */
5851 int fontset
= face_fontset (attrs
);
5853 /* If we are realizing the default face, ATTRS should specify a
5854 fontset. In other words, if FONTSET is -1, we are not
5855 realizing the default face, thus the default face should have
5856 already been realized. */
5860 fontset
= default_face
->fontset
;
5864 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5865 attrs
[LFACE_FONT_INDEX
]
5866 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5867 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5869 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5870 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5880 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5881 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5882 face
->overstrike
= 1;
5884 /* Load colors, and set remaining attributes. */
5886 load_face_colors (f
, face
, attrs
);
5889 box
= attrs
[LFACE_BOX_INDEX
];
5892 /* A simple box of line width 1 drawn in color given by
5894 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5896 face
->box
= FACE_SIMPLE_BOX
;
5897 face
->box_line_width
= 1;
5899 else if (INTEGERP (box
))
5901 /* Simple box of specified line width in foreground color of the
5903 xassert (XINT (box
) != 0);
5904 face
->box
= FACE_SIMPLE_BOX
;
5905 face
->box_line_width
= XINT (box
);
5906 face
->box_color
= face
->foreground
;
5907 face
->box_color_defaulted_p
= 1;
5909 else if (CONSP (box
))
5911 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5912 being one of `raised' or `sunken'. */
5913 face
->box
= FACE_SIMPLE_BOX
;
5914 face
->box_color
= face
->foreground
;
5915 face
->box_color_defaulted_p
= 1;
5916 face
->box_line_width
= 1;
5920 Lisp_Object keyword
, value
;
5922 keyword
= XCAR (box
);
5930 if (EQ (keyword
, QCline_width
))
5932 if (INTEGERP (value
) && XINT (value
) != 0)
5933 face
->box_line_width
= XINT (value
);
5935 else if (EQ (keyword
, QCcolor
))
5937 if (STRINGP (value
))
5939 face
->box_color
= load_color (f
, face
, value
,
5941 face
->use_box_color_for_shadows_p
= 1;
5944 else if (EQ (keyword
, QCstyle
))
5946 if (EQ (value
, Qreleased_button
))
5947 face
->box
= FACE_RAISED_BOX
;
5948 else if (EQ (value
, Qpressed_button
))
5949 face
->box
= FACE_SUNKEN_BOX
;
5954 /* Text underline, overline, strike-through. */
5956 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5958 /* Use default color (same as foreground color). */
5959 face
->underline_p
= 1;
5960 face
->underline_defaulted_p
= 1;
5961 face
->underline_color
= 0;
5963 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5965 /* Use specified color. */
5966 face
->underline_p
= 1;
5967 face
->underline_defaulted_p
= 0;
5968 face
->underline_color
5969 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5970 LFACE_UNDERLINE_INDEX
);
5972 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5974 face
->underline_p
= 0;
5975 face
->underline_defaulted_p
= 0;
5976 face
->underline_color
= 0;
5979 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5980 if (STRINGP (overline
))
5982 face
->overline_color
5983 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5984 LFACE_OVERLINE_INDEX
);
5985 face
->overline_p
= 1;
5987 else if (EQ (overline
, Qt
))
5989 face
->overline_color
= face
->foreground
;
5990 face
->overline_color_defaulted_p
= 1;
5991 face
->overline_p
= 1;
5994 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5995 if (STRINGP (strike_through
))
5997 face
->strike_through_color
5998 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5999 LFACE_STRIKE_THROUGH_INDEX
);
6000 face
->strike_through_p
= 1;
6002 else if (EQ (strike_through
, Qt
))
6004 face
->strike_through_color
= face
->foreground
;
6005 face
->strike_through_color_defaulted_p
= 1;
6006 face
->strike_through_p
= 1;
6009 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6010 if (!NILP (stipple
))
6011 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6012 #endif /* HAVE_WINDOW_SYSTEM */
6018 /* Map a specified color of face FACE on frame F to a tty color index.
6019 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6020 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6021 default foreground/background colors. */
6024 map_tty_color (f
, face
, idx
, defaulted
)
6027 enum lface_attribute_index idx
;
6030 Lisp_Object frame
, color
, def
;
6031 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6032 unsigned long default_pixel
, default_other_pixel
, pixel
;
6034 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6038 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6039 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6043 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6044 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6047 XSETFRAME (frame
, f
);
6048 color
= face
->lface
[idx
];
6052 && CONSP (Vtty_defined_color_alist
)
6053 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6056 /* Associations in tty-defined-color-alist are of the form
6057 (NAME INDEX R G B). We need the INDEX part. */
6058 pixel
= XINT (XCAR (XCDR (def
)));
6061 if (pixel
== default_pixel
&& STRINGP (color
))
6063 pixel
= load_color (f
, face
, color
, idx
);
6066 /* If the foreground of the default face is the default color,
6067 use the foreground color defined by the frame. */
6068 if (FRAME_MSDOS_P (f
))
6070 if (pixel
== default_pixel
6071 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6074 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6076 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6077 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6080 else if (pixel
== default_other_pixel
)
6083 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6085 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6086 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6094 face
->foreground
= pixel
;
6096 face
->background
= pixel
;
6100 /* Realize the fully-specified face with attributes ATTRS in face
6101 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
6102 Value is a pointer to the newly created realized face. */
6104 static struct face
*
6105 realize_tty_face (cache
, attrs
)
6106 struct face_cache
*cache
;
6111 int face_colors_defaulted
= 0;
6112 struct frame
*f
= cache
->f
;
6114 /* Frame must be a termcap frame. */
6115 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6117 /* Allocate a new realized face. */
6118 face
= make_realized_face (attrs
);
6120 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6123 /* Map face attributes to TTY appearances. We map slant to
6124 dimmed text because we want italic text to appear differently
6125 and because dimmed text is probably used infrequently. */
6126 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
6127 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
6129 face
->tty_bold_p
= 1;
6130 if (weight
< 100 || slant
!= 100)
6131 face
->tty_dim_p
= 1;
6132 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6133 face
->tty_underline_p
= 1;
6134 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6135 face
->tty_reverse_p
= 1;
6137 /* Map color names to color indices. */
6138 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6139 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6141 /* Swap colors if face is inverse-video. If the colors are taken
6142 from the frame colors, they are already inverted, since the
6143 frame-creation function calls x-handle-reverse-video. */
6144 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6146 unsigned long tem
= face
->foreground
;
6147 face
->foreground
= face
->background
;
6148 face
->background
= tem
;
6151 if (tty_suppress_bold_inverse_default_colors_p
6153 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6154 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6155 face
->tty_bold_p
= 0;
6161 DEFUN ("tty-suppress-bold-inverse-default-colors",
6162 Ftty_suppress_bold_inverse_default_colors
,
6163 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6164 doc
: /* Suppress/allow boldness of faces with inverse default colors.
6165 SUPPRESS non-nil means suppress it.
6166 This affects bold faces on TTYs whose foreground is the default background
6167 color of the display and whose background is the default foreground color.
6168 For such faces, the bold face attribute is ignored if this variable
6171 Lisp_Object suppress
;
6173 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6174 ++face_change_count
;
6180 /***********************************************************************
6182 ***********************************************************************/
6184 /* Return the ID of the face to use to display character CH with face
6185 property PROP on frame F in current_buffer. */
6188 compute_char_face (f
, ch
, prop
)
6195 if (NILP (current_buffer
->enable_multibyte_characters
))
6200 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6201 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6205 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6206 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6207 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6208 merge_face_ref (f
, prop
, attrs
, 1, 0);
6209 face_id
= lookup_face (f
, attrs
);
6215 /* Return the face ID associated with buffer position POS for
6216 displaying ASCII characters. Return in *ENDPTR the position at
6217 which a different face is needed, as far as text properties and
6218 overlays are concerned. W is a window displaying current_buffer.
6220 REGION_BEG, REGION_END delimit the region, so it can be
6223 LIMIT is a position not to scan beyond. That is to limit the time
6224 this function can take.
6226 If MOUSE is non-zero, use the character's mouse-face, not its face.
6228 The face returned is suitable for displaying ASCII characters. */
6231 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6232 endptr
, limit
, mouse
)
6235 EMACS_INT region_beg
, region_end
;
6240 struct frame
*f
= XFRAME (w
->frame
);
6241 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6242 Lisp_Object prop
, position
;
6244 Lisp_Object
*overlay_vec
;
6247 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6248 Lisp_Object limit1
, end
;
6249 struct face
*default_face
;
6251 /* W must display the current buffer. We could write this function
6252 to use the frame and buffer of W, but right now it doesn't. */
6253 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6255 XSETFRAME (frame
, f
);
6256 XSETFASTINT (position
, pos
);
6259 if (pos
< region_beg
&& region_beg
< endpos
)
6260 endpos
= region_beg
;
6262 /* Get the `face' or `mouse_face' text property at POS, and
6263 determine the next position at which the property changes. */
6264 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6265 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6266 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6268 endpos
= XINT (end
);
6270 /* Look at properties from overlays. */
6272 EMACS_INT next_overlay
;
6274 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6275 if (next_overlay
< endpos
)
6276 endpos
= next_overlay
;
6282 /* Perhaps remap BASE_FACE_ID to a user-specified alternative. */
6283 if (NILP (Vface_remapping_alist
))
6284 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6286 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6288 /* Optimize common cases where we can use the default face. */
6291 && !(pos
>= region_beg
&& pos
< region_end
))
6292 return default_face
->id
;
6294 /* Begin with attributes from the default face. */
6295 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6297 /* Merge in attributes specified via text properties. */
6299 merge_face_ref (f
, prop
, attrs
, 1, 0);
6301 /* Now merge the overlay data. */
6302 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6303 for (i
= 0; i
< noverlays
; i
++)
6308 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6310 merge_face_ref (f
, prop
, attrs
, 1, 0);
6312 oend
= OVERLAY_END (overlay_vec
[i
]);
6313 oendpos
= OVERLAY_POSITION (oend
);
6314 if (oendpos
< endpos
)
6318 /* If in the region, merge in the region face. */
6319 if (pos
>= region_beg
&& pos
< region_end
)
6321 merge_named_face (f
, Qregion
, attrs
, 0);
6323 if (region_end
< endpos
)
6324 endpos
= region_end
;
6329 /* Look up a realized face with the given face attributes,
6330 or realize a new one for ASCII characters. */
6331 return lookup_face (f
, attrs
);
6334 /* Return the face ID at buffer position POS for displaying ASCII
6335 characters associated with overlay strings for overlay OVERLAY.
6337 Like face_at_buffer_position except for OVERLAY. Currently it
6338 simply disregards the `face' properties of all overlays. */
6341 face_for_overlay_string (w
, pos
, region_beg
, region_end
,
6342 endptr
, limit
, mouse
, overlay
)
6345 EMACS_INT region_beg
, region_end
;
6349 Lisp_Object overlay
;
6351 struct frame
*f
= XFRAME (w
->frame
);
6352 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6353 Lisp_Object prop
, position
;
6356 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6357 Lisp_Object limit1
, end
;
6358 struct face
*default_face
;
6360 /* W must display the current buffer. We could write this function
6361 to use the frame and buffer of W, but right now it doesn't. */
6362 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6364 XSETFRAME (frame
, f
);
6365 XSETFASTINT (position
, pos
);
6368 if (pos
< region_beg
&& region_beg
< endpos
)
6369 endpos
= region_beg
;
6371 /* Get the `face' or `mouse_face' text property at POS, and
6372 determine the next position at which the property changes. */
6373 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6374 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6375 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6377 endpos
= XINT (end
);
6381 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6383 /* Optimize common cases where we can use the default face. */
6385 && !(pos
>= region_beg
&& pos
< region_end
))
6386 return DEFAULT_FACE_ID
;
6388 /* Begin with attributes from the default face. */
6389 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6391 /* Merge in attributes specified via text properties. */
6393 merge_face_ref (f
, prop
, attrs
, 1, 0);
6395 /* If in the region, merge in the region face. */
6396 if (pos
>= region_beg
&& pos
< region_end
)
6398 merge_named_face (f
, Qregion
, attrs
, 0);
6400 if (region_end
< endpos
)
6401 endpos
= region_end
;
6406 /* Look up a realized face with the given face attributes,
6407 or realize a new one for ASCII characters. */
6408 return lookup_face (f
, attrs
);
6412 /* Compute the face at character position POS in Lisp string STRING on
6413 window W, for ASCII characters.
6415 If STRING is an overlay string, it comes from position BUFPOS in
6416 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6417 not an overlay string. W must display the current buffer.
6418 REGION_BEG and REGION_END give the start and end positions of the
6419 region; both are -1 if no region is visible.
6421 BASE_FACE_ID is the id of a face to merge with. For strings coming
6422 from overlays or the `display' property it is the face at BUFPOS.
6424 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6426 Set *ENDPTR to the next position where to check for faces in
6427 STRING; -1 if the face is constant from POS to the end of the
6430 Value is the id of the face to use. The face returned is suitable
6431 for displaying ASCII characters. */
6434 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6435 region_end
, endptr
, base_face_id
, mouse_p
)
6438 EMACS_INT pos
, bufpos
;
6439 EMACS_INT region_beg
, region_end
;
6441 enum face_id base_face_id
;
6444 Lisp_Object prop
, position
, end
, limit
;
6445 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6446 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6447 struct face
*base_face
;
6448 int multibyte_p
= STRING_MULTIBYTE (string
);
6449 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6451 /* Get the value of the face property at the current position within
6452 STRING. Value is nil if there is no face property. */
6453 XSETFASTINT (position
, pos
);
6454 prop
= Fget_text_property (position
, prop_name
, string
);
6456 /* Get the next position at which to check for faces. Value of end
6457 is nil if face is constant all the way to the end of the string.
6458 Otherwise it is a string position where to check faces next.
6459 Limit is the maximum position up to which to check for property
6460 changes in Fnext_single_property_change. Strings are usually
6461 short, so set the limit to the end of the string. */
6462 XSETFASTINT (limit
, SCHARS (string
));
6463 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6465 *endptr
= XFASTINT (end
);
6469 base_face
= FACE_FROM_ID (f
, base_face_id
);
6470 xassert (base_face
);
6472 /* Optimize the default case that there is no face property and we
6473 are not in the region. */
6475 && (base_face_id
!= DEFAULT_FACE_ID
6476 /* BUFPOS <= 0 means STRING is not an overlay string, so
6477 that the region doesn't have to be taken into account. */
6479 || bufpos
< region_beg
6480 || bufpos
>= region_end
)
6482 /* We can't realize faces for different charsets differently
6483 if we don't have fonts, so we can stop here if not working
6484 on a window-system frame. */
6485 || !FRAME_WINDOW_P (f
)
6486 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6487 return base_face
->id
;
6489 /* Begin with attributes from the base face. */
6490 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6492 /* Merge in attributes specified via text properties. */
6494 merge_face_ref (f
, prop
, attrs
, 1, 0);
6496 /* If in the region, merge in the region face. */
6498 && bufpos
>= region_beg
6499 && bufpos
< region_end
)
6500 merge_named_face (f
, Qregion
, attrs
, 0);
6502 /* Look up a realized face with the given face attributes,
6503 or realize a new one for ASCII characters. */
6504 return lookup_face (f
, attrs
);
6508 /* Merge a face into a realized face.
6510 F is frame where faces are (to be) realized.
6512 FACE_NAME is named face to merge.
6514 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6516 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6518 BASE_FACE_ID is realized face to merge into.
6524 merge_faces (f
, face_name
, face_id
, base_face_id
)
6526 Lisp_Object face_name
;
6527 int face_id
, base_face_id
;
6529 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6530 struct face
*base_face
;
6532 base_face
= FACE_FROM_ID (f
, base_face_id
);
6534 return base_face_id
;
6536 if (EQ (face_name
, Qt
))
6538 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6539 return base_face_id
;
6540 face_name
= lface_id_to_name
[face_id
];
6541 /* When called during make-frame, lookup_derived_face may fail
6542 if the faces are uninitialized. Don't signal an error. */
6543 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6544 return (face_id
>= 0 ? face_id
: base_face_id
);
6547 /* Begin with attributes from the base face. */
6548 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6550 if (!NILP (face_name
))
6552 if (!merge_named_face (f
, face_name
, attrs
, 0))
6553 return base_face_id
;
6559 return base_face_id
;
6560 face
= FACE_FROM_ID (f
, face_id
);
6562 return base_face_id
;
6563 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6566 /* Look up a realized face with the given face attributes,
6567 or realize a new one for ASCII characters. */
6568 return lookup_face (f
, attrs
);
6573 #ifndef HAVE_X_WINDOWS
6574 DEFUN ("x-load-color-file", Fx_load_color_file
,
6575 Sx_load_color_file
, 1, 1, 0,
6576 doc
: /* Create an alist of color entries from an external file.
6578 The file should define one named RGB color per line like so:
6580 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6582 Lisp_Object filename
;
6585 Lisp_Object cmap
= Qnil
;
6586 Lisp_Object abspath
;
6588 CHECK_STRING (filename
);
6589 abspath
= Fexpand_file_name (filename
, Qnil
);
6591 fp
= fopen (SDATA (filename
), "rt");
6595 int red
, green
, blue
;
6600 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6601 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6603 char *name
= buf
+ num
;
6604 num
= strlen (name
) - 1;
6605 if (name
[num
] == '\n')
6607 cmap
= Fcons (Fcons (build_string (name
),
6609 make_number (RGB (red
, green
, blue
))),
6611 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6626 /***********************************************************************
6628 ***********************************************************************/
6632 /* Print the contents of the realized face FACE to stderr. */
6635 dump_realized_face (face
)
6638 fprintf (stderr
, "ID: %d\n", face
->id
);
6639 #ifdef HAVE_X_WINDOWS
6640 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6642 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6644 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6645 fprintf (stderr
, "background: 0x%lx (%s)\n",
6647 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6649 fprintf (stderr
, "font_name: %s (%s)\n",
6650 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6651 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6652 #ifdef HAVE_X_WINDOWS
6653 fprintf (stderr
, "font = %p\n", face
->font
);
6655 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6656 fprintf (stderr
, "underline: %d (%s)\n",
6658 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6659 fprintf (stderr
, "hash: %d\n", face
->hash
);
6663 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6671 fprintf (stderr
, "font selection order: ");
6672 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6673 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6674 fprintf (stderr
, "\n");
6676 fprintf (stderr
, "alternative fonts: ");
6677 debug_print (Vface_alternative_font_family_alist
);
6678 fprintf (stderr
, "\n");
6680 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6681 Fdump_face (make_number (i
));
6687 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6689 error ("Not a valid face");
6690 dump_realized_face (face
);
6697 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6698 0, 0, 0, doc
: /* */)
6701 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6702 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6703 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6707 #endif /* GLYPH_DEBUG != 0 */
6711 /***********************************************************************
6713 ***********************************************************************/
6718 Qface
= intern ("face");
6720 Qface_no_inherit
= intern ("face-no-inherit");
6721 staticpro (&Qface_no_inherit
);
6722 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6723 staticpro (&Qbitmap_spec_p
);
6724 Qframe_set_background_mode
= intern ("frame-set-background-mode");
6725 staticpro (&Qframe_set_background_mode
);
6727 /* Lisp face attribute keywords. */
6728 QCfamily
= intern (":family");
6729 staticpro (&QCfamily
);
6730 QCheight
= intern (":height");
6731 staticpro (&QCheight
);
6732 QCweight
= intern (":weight");
6733 staticpro (&QCweight
);
6734 QCslant
= intern (":slant");
6735 staticpro (&QCslant
);
6736 QCunderline
= intern (":underline");
6737 staticpro (&QCunderline
);
6738 QCinverse_video
= intern (":inverse-video");
6739 staticpro (&QCinverse_video
);
6740 QCreverse_video
= intern (":reverse-video");
6741 staticpro (&QCreverse_video
);
6742 QCforeground
= intern (":foreground");
6743 staticpro (&QCforeground
);
6744 QCbackground
= intern (":background");
6745 staticpro (&QCbackground
);
6746 QCstipple
= intern (":stipple");
6747 staticpro (&QCstipple
);
6748 QCwidth
= intern (":width");
6749 staticpro (&QCwidth
);
6750 QCfont
= intern (":font");
6751 staticpro (&QCfont
);
6752 QCfontset
= intern (":fontset");
6753 staticpro (&QCfontset
);
6754 QCbold
= intern (":bold");
6755 staticpro (&QCbold
);
6756 QCitalic
= intern (":italic");
6757 staticpro (&QCitalic
);
6758 QCoverline
= intern (":overline");
6759 staticpro (&QCoverline
);
6760 QCstrike_through
= intern (":strike-through");
6761 staticpro (&QCstrike_through
);
6762 QCbox
= intern (":box");
6764 QCinherit
= intern (":inherit");
6765 staticpro (&QCinherit
);
6767 /* Symbols used for Lisp face attribute values. */
6768 QCcolor
= intern (":color");
6769 staticpro (&QCcolor
);
6770 QCline_width
= intern (":line-width");
6771 staticpro (&QCline_width
);
6772 QCstyle
= intern (":style");
6773 staticpro (&QCstyle
);
6774 Qreleased_button
= intern ("released-button");
6775 staticpro (&Qreleased_button
);
6776 Qpressed_button
= intern ("pressed-button");
6777 staticpro (&Qpressed_button
);
6778 Qnormal
= intern ("normal");
6779 staticpro (&Qnormal
);
6780 Qultra_light
= intern ("ultra-light");
6781 staticpro (&Qultra_light
);
6782 Qextra_light
= intern ("extra-light");
6783 staticpro (&Qextra_light
);
6784 Qlight
= intern ("light");
6785 staticpro (&Qlight
);
6786 Qsemi_light
= intern ("semi-light");
6787 staticpro (&Qsemi_light
);
6788 Qsemi_bold
= intern ("semi-bold");
6789 staticpro (&Qsemi_bold
);
6790 Qbold
= intern ("bold");
6792 Qextra_bold
= intern ("extra-bold");
6793 staticpro (&Qextra_bold
);
6794 Qultra_bold
= intern ("ultra-bold");
6795 staticpro (&Qultra_bold
);
6796 Qoblique
= intern ("oblique");
6797 staticpro (&Qoblique
);
6798 Qitalic
= intern ("italic");
6799 staticpro (&Qitalic
);
6800 Qreverse_oblique
= intern ("reverse-oblique");
6801 staticpro (&Qreverse_oblique
);
6802 Qreverse_italic
= intern ("reverse-italic");
6803 staticpro (&Qreverse_italic
);
6804 Qultra_condensed
= intern ("ultra-condensed");
6805 staticpro (&Qultra_condensed
);
6806 Qextra_condensed
= intern ("extra-condensed");
6807 staticpro (&Qextra_condensed
);
6808 Qcondensed
= intern ("condensed");
6809 staticpro (&Qcondensed
);
6810 Qsemi_condensed
= intern ("semi-condensed");
6811 staticpro (&Qsemi_condensed
);
6812 Qsemi_expanded
= intern ("semi-expanded");
6813 staticpro (&Qsemi_expanded
);
6814 Qexpanded
= intern ("expanded");
6815 staticpro (&Qexpanded
);
6816 Qextra_expanded
= intern ("extra-expanded");
6817 staticpro (&Qextra_expanded
);
6818 Qultra_expanded
= intern ("ultra-expanded");
6819 staticpro (&Qultra_expanded
);
6820 Qbackground_color
= intern ("background-color");
6821 staticpro (&Qbackground_color
);
6822 Qforeground_color
= intern ("foreground-color");
6823 staticpro (&Qforeground_color
);
6824 Qunspecified
= intern ("unspecified");
6825 staticpro (&Qunspecified
);
6826 Qignore_defface
= intern (":ignore-defface");
6827 staticpro (&Qignore_defface
);
6829 Qface_alias
= intern ("face-alias");
6830 staticpro (&Qface_alias
);
6831 Qdefault
= intern ("default");
6832 staticpro (&Qdefault
);
6833 Qtool_bar
= intern ("tool-bar");
6834 staticpro (&Qtool_bar
);
6835 Qregion
= intern ("region");
6836 staticpro (&Qregion
);
6837 Qfringe
= intern ("fringe");
6838 staticpro (&Qfringe
);
6839 Qheader_line
= intern ("header-line");
6840 staticpro (&Qheader_line
);
6841 Qscroll_bar
= intern ("scroll-bar");
6842 staticpro (&Qscroll_bar
);
6843 Qmenu
= intern ("menu");
6845 Qcursor
= intern ("cursor");
6846 staticpro (&Qcursor
);
6847 Qborder
= intern ("border");
6848 staticpro (&Qborder
);
6849 Qmouse
= intern ("mouse");
6850 staticpro (&Qmouse
);
6851 Qmode_line_inactive
= intern ("mode-line-inactive");
6852 staticpro (&Qmode_line_inactive
);
6853 Qvertical_border
= intern ("vertical-border");
6854 staticpro (&Qvertical_border
);
6855 Qtty_color_desc
= intern ("tty-color-desc");
6856 staticpro (&Qtty_color_desc
);
6857 Qtty_color_standard_values
= intern ("tty-color-standard-values");
6858 staticpro (&Qtty_color_standard_values
);
6859 Qtty_color_by_index
= intern ("tty-color-by-index");
6860 staticpro (&Qtty_color_by_index
);
6861 Qtty_color_alist
= intern ("tty-color-alist");
6862 staticpro (&Qtty_color_alist
);
6863 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
6864 staticpro (&Qscalable_fonts_allowed
);
6866 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6867 staticpro (&Vparam_value_alist
);
6868 Vface_alternative_font_family_alist
= Qnil
;
6869 staticpro (&Vface_alternative_font_family_alist
);
6870 Vface_alternative_font_registry_alist
= Qnil
;
6871 staticpro (&Vface_alternative_font_registry_alist
);
6873 defsubr (&Sinternal_make_lisp_face
);
6874 defsubr (&Sinternal_lisp_face_p
);
6875 defsubr (&Sinternal_set_lisp_face_attribute
);
6876 #ifdef HAVE_WINDOW_SYSTEM
6877 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6879 defsubr (&Scolor_gray_p
);
6880 defsubr (&Scolor_supported_p
);
6881 #ifndef HAVE_X_WINDOWS
6882 defsubr (&Sx_load_color_file
);
6884 defsubr (&Sface_attribute_relative_p
);
6885 defsubr (&Smerge_face_attribute
);
6886 defsubr (&Sinternal_get_lisp_face_attribute
);
6887 defsubr (&Sinternal_lisp_face_attribute_values
);
6888 defsubr (&Sinternal_lisp_face_equal_p
);
6889 defsubr (&Sinternal_lisp_face_empty_p
);
6890 defsubr (&Sinternal_copy_lisp_face
);
6891 defsubr (&Sinternal_merge_in_global_face
);
6892 defsubr (&Sface_font
);
6893 defsubr (&Sframe_face_alist
);
6894 defsubr (&Sdisplay_supports_face_attributes_p
);
6895 defsubr (&Scolor_distance
);
6896 defsubr (&Sinternal_set_font_selection_order
);
6897 defsubr (&Sinternal_set_alternative_font_family_alist
);
6898 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6899 defsubr (&Sface_attributes_as_vector
);
6901 defsubr (&Sdump_face
);
6902 defsubr (&Sshow_face_resources
);
6903 #endif /* GLYPH_DEBUG */
6904 defsubr (&Sclear_face_cache
);
6905 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6907 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6908 defsubr (&Sdump_colors
);
6911 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6912 doc
: /* *Limit for font matching.
6913 If an integer > 0, font matching functions won't load more than
6914 that number of fonts when searching for a matching font. */);
6915 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6917 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6918 doc
: /* List of global face definitions (for internal use only.) */);
6919 Vface_new_frame_defaults
= Qnil
;
6921 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6922 doc
: /* *Default stipple pattern used on monochrome displays.
6923 This stipple pattern is used on monochrome displays
6924 instead of shades of gray for a face background color.
6925 See `set-face-stipple' for possible values for this variable. */);
6926 Vface_default_stipple
= build_string ("gray3");
6928 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
6929 doc
: /* An alist of defined terminal colors and their RGB values. */);
6930 Vtty_defined_color_alist
= Qnil
;
6932 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6933 doc
: /* Allowed scalable fonts.
6934 A value of nil means don't allow any scalable fonts.
6935 A value of t means allow any scalable font.
6936 Otherwise, value must be a list of regular expressions. A font may be
6937 scaled if its name matches a regular expression in the list.
6938 Note that if value is nil, a scalable font might still be used, if no
6939 other font of the appropriate family and registry is available. */);
6940 Vscalable_fonts_allowed
= Qnil
;
6942 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
6943 doc
: /* List of ignored fonts.
6944 Each element is a regular expression that matches names of fonts to
6946 Vface_ignored_fonts
= Qnil
;
6948 DEFVAR_LISP ("face-remapping-alist", &Vface_remapping_alist
,
6949 doc
: /* Alist of face remappings.
6950 Each element is of the form:
6952 (FACE REPLACEMENT...),
6954 which causes display of the face FACE to use REPLACEMENT... instead.
6955 REPLACEMENT... is interpreted the same way the value of a `face' text
6956 property is: it may be (1) A face name, (2) A list of face names, (3) A
6957 property-list of face attribute/value pairs, or (4) A list of face names
6958 intermixed with lists containing face attribute/value pairs.
6960 Multiple entries in REPLACEMENT... are merged together to form the final
6961 result, with faces or attributes earlier in the list taking precedence
6962 over those that are later.
6964 Face-name remapping cycles are suppressed; recursive references use the
6965 underlying face instead of the remapped face. So a remapping of the form:
6967 (FACE EXTRA-FACE... FACE)
6971 (FACE (FACE-ATTR VAL ...) FACE)
6973 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6974 existing definition of FACE. Note that for the default face, this isn't
6975 necessary, as every face inherits from the default face.
6977 Making this variable buffer-local is a good way to allow buffer-specific
6978 face definitions. For instance, the mode my-mode could define a face
6979 `my-mode-default', and then in the mode setup function, do:
6981 (set (make-local-variable 'face-remapping-alist)
6982 '((default my-mode-default)))). */);
6983 Vface_remapping_alist
= Qnil
;
6985 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
6986 doc
: /* Alist of fonts vs the rescaling factors.
6987 Each element is a cons (FONT-PATTERN . RESCALE-RATIO), where
6988 FONT-PATTERN is a font-spec or a regular expression matching a font name, and
6989 RESCALE-RATIO is a floating point number to specify how much larger
6990 \(or smaller) font we should use. For instance, if a face requests
6991 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6992 Vface_font_rescale_alist
= Qnil
;
6994 #ifdef HAVE_WINDOW_SYSTEM
6995 defsubr (&Sbitmap_spec_p
);
6996 defsubr (&Sx_list_fonts
);
6997 defsubr (&Sinternal_face_x_get_resource
);
6998 defsubr (&Sx_family_fonts
);
7002 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7003 (do not change this comment) */