1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008 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 if (FRAME_IMAGE_CACHE (f
) == NULL
)
853 /* Is that ever possible?? --Stef */
854 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
855 ++FRAME_IMAGE_CACHE (f
)->refcount
;
857 #endif /* HAVE_WINDOW_SYSTEM */
859 /* Realize basic faces. Must have enough information in frame
860 parameters to realize basic faces at this point. */
861 #ifdef HAVE_X_WINDOWS
862 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
865 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
868 if (!FRAME_NS_P (f
) || FRAME_NS_WINDOW (f
))
870 if (!realize_basic_faces (f
))
875 /* Free face cache of frame F. Called from Fdelete_frame. */
881 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
885 free_face_cache (face_cache
);
886 FRAME_FACE_CACHE (f
) = NULL
;
889 #ifdef HAVE_WINDOW_SYSTEM
890 if (FRAME_WINDOW_P (f
))
892 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
895 --image_cache
->refcount
;
896 if (image_cache
->refcount
== 0)
897 free_image_cache (f
);
900 #endif /* HAVE_WINDOW_SYSTEM */
904 /* Clear face caches, and recompute basic faces for frame F. Call
905 this after changing frame parameters on which those faces depend,
906 or when realized faces have been freed due to changing attributes
910 recompute_basic_faces (f
)
913 if (FRAME_FACE_CACHE (f
))
915 clear_face_cache (0);
916 if (!realize_basic_faces (f
))
922 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
923 try to free unused fonts, too. */
926 clear_face_cache (clear_fonts_p
)
929 #ifdef HAVE_WINDOW_SYSTEM
930 Lisp_Object tail
, frame
;
934 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
937 /* Not yet implemented. */
938 clear_font_cache (frame
);
941 /* From time to time see if we can unload some fonts. This also
942 frees all realized faces on all frames. Fonts needed by
943 faces will be loaded again when faces are realized again. */
944 clear_font_table_count
= 0;
946 FOR_EACH_FRAME (tail
, frame
)
948 struct frame
*f
= XFRAME (frame
);
949 if (FRAME_WINDOW_P (f
)
950 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
951 free_all_realized_faces (frame
);
956 /* Clear GCs of realized faces. */
957 FOR_EACH_FRAME (tail
, frame
)
960 if (FRAME_WINDOW_P (f
))
961 clear_face_gcs (FRAME_FACE_CACHE (f
));
963 clear_image_caches (Qnil
);
965 #endif /* HAVE_WINDOW_SYSTEM */
969 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
970 doc
: /* Clear face caches on all frames.
971 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
973 Lisp_Object thoroughly
;
975 clear_face_cache (!NILP (thoroughly
));
977 ++windows_or_buffers_changed
;
982 /***********************************************************************
984 ***********************************************************************/
986 #ifdef HAVE_WINDOW_SYSTEM
988 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
989 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
990 A bitmap specification is either a string, a file name, or a list
991 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
992 HEIGHT is its height, and DATA is a string containing the bits of
993 the pixmap. Bits are stored row by row, each row occupies
994 \(WIDTH + 7)/8 bytes. */)
1000 if (STRINGP (object
))
1001 /* If OBJECT is a string, it's a file name. */
1003 else if (CONSP (object
))
1005 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1006 HEIGHT must be integers > 0, and DATA must be string large
1007 enough to hold a bitmap of the specified size. */
1008 Lisp_Object width
, height
, data
;
1010 height
= width
= data
= Qnil
;
1014 width
= XCAR (object
);
1015 object
= XCDR (object
);
1018 height
= XCAR (object
);
1019 object
= XCDR (object
);
1021 data
= XCAR (object
);
1025 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1027 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1029 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1034 return pixmap_p
? Qt
: Qnil
;
1038 /* Load a bitmap according to NAME (which is either a file name or a
1039 pixmap spec) for use on frame F. Value is the bitmap_id (see
1040 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1041 bitmap cannot be loaded, display a message saying so, and return
1042 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1043 if these pointers are not null. */
1046 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1049 unsigned int *w_ptr
, *h_ptr
;
1056 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
1061 /* Decode a bitmap spec into a bitmap. */
1066 w
= XINT (Fcar (name
));
1067 h
= XINT (Fcar (Fcdr (name
)));
1068 bits
= Fcar (Fcdr (Fcdr (name
)));
1070 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1075 /* It must be a string -- a file name. */
1076 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1082 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1093 ++npixmaps_allocated
;
1096 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1099 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1105 #endif /* HAVE_WINDOW_SYSTEM */
1109 /***********************************************************************
1111 ***********************************************************************/
1113 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1114 RGB_LIST should contain (at least) 3 lisp integers.
1115 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1118 parse_rgb_list (rgb_list
, color
)
1119 Lisp_Object rgb_list
;
1122 #define PARSE_RGB_LIST_FIELD(field) \
1123 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1125 color->field = XINT (XCAR (rgb_list)); \
1126 rgb_list = XCDR (rgb_list); \
1131 PARSE_RGB_LIST_FIELD (red
);
1132 PARSE_RGB_LIST_FIELD (green
);
1133 PARSE_RGB_LIST_FIELD (blue
);
1139 /* Lookup on frame F the color described by the lisp string COLOR.
1140 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1141 non-zero, then the `standard' definition of the same color is
1145 tty_lookup_color (f
, color
, tty_color
, std_color
)
1148 XColor
*tty_color
, *std_color
;
1150 Lisp_Object frame
, color_desc
;
1152 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1155 XSETFRAME (frame
, f
);
1157 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1158 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1162 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1165 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1167 rgb
= XCDR (XCDR (color_desc
));
1168 if (! parse_rgb_list (rgb
, tty_color
))
1171 /* Should we fill in STD_COLOR too? */
1174 /* Default STD_COLOR to the same as TTY_COLOR. */
1175 *std_color
= *tty_color
;
1177 /* Do a quick check to see if the returned descriptor is
1178 actually _exactly_ equal to COLOR, otherwise we have to
1179 lookup STD_COLOR separately. If it's impossible to lookup
1180 a standard color, we just give up and use TTY_COLOR. */
1181 if ((!STRINGP (XCAR (color_desc
))
1182 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1183 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1185 /* Look up STD_COLOR separately. */
1186 rgb
= call1 (Qtty_color_standard_values
, color
);
1187 if (! parse_rgb_list (rgb
, std_color
))
1194 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1195 /* We were called early during startup, and the colors are not
1196 yet set up in tty-defined-color-alist. Don't return a failure
1197 indication, since this produces the annoying "Unable to
1198 load color" messages in the *Messages* buffer. */
1201 /* tty-color-desc seems to have returned a bad value. */
1205 /* A version of defined_color for non-X frames. */
1208 tty_defined_color (f
, color_name
, color_def
, alloc
)
1217 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1219 color_def
->blue
= 0;
1220 color_def
->green
= 0;
1223 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1225 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1227 if (strcmp (color_name
, "unspecified-fg") == 0)
1228 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1229 else if (strcmp (color_name
, "unspecified-bg") == 0)
1230 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1233 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1240 /* Decide if color named COLOR_NAME is valid for the display
1241 associated with the frame F; if so, return the rgb values in
1242 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1244 This does the right thing for any type of frame. */
1247 defined_color (f
, color_name
, color_def
, alloc
)
1253 if (!FRAME_WINDOW_P (f
))
1254 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1255 #ifdef HAVE_X_WINDOWS
1256 else if (FRAME_X_P (f
))
1257 return x_defined_color (f
, color_name
, color_def
, alloc
);
1260 else if (FRAME_W32_P (f
))
1261 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1264 else if (FRAME_NS_P (f
))
1265 return ns_defined_color (f
, color_name
, color_def
, alloc
, 1);
1272 /* Given the index IDX of a tty color on frame F, return its name, a
1276 tty_color_name (f
, idx
)
1280 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1283 Lisp_Object coldesc
;
1285 XSETFRAME (frame
, f
);
1286 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1288 if (!NILP (coldesc
))
1289 return XCAR (coldesc
);
1292 /* We can have an MSDOG frame under -nw for a short window of
1293 opportunity before internal_terminal_init is called. DTRT. */
1294 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1295 return msdos_stdcolor_name (idx
);
1298 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1299 return build_string (unspecified_fg
);
1300 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1301 return build_string (unspecified_bg
);
1303 return Qunspecified
;
1307 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1310 The criterion implemented here is not a terribly sophisticated one. */
1313 face_color_gray_p (f
, color_name
)
1320 if (defined_color (f
, color_name
, &color
, 0))
1321 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1322 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1324 ((eabs (color
.red
- color
.green
)
1325 < max (color
.red
, color
.green
) / 20)
1326 && (eabs (color
.green
- color
.blue
)
1327 < max (color
.green
, color
.blue
) / 20)
1328 && (eabs (color
.blue
- color
.red
)
1329 < max (color
.blue
, color
.red
) / 20)));
1337 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1338 BACKGROUND_P non-zero means the color will be used as background
1342 face_color_supported_p (f
, color_name
, background_p
)
1350 XSETFRAME (frame
, f
);
1352 #ifdef HAVE_WINDOW_SYSTEM
1354 ? (!NILP (Fxw_display_color_p (frame
))
1355 || xstrcasecmp (color_name
, "black") == 0
1356 || xstrcasecmp (color_name
, "white") == 0
1358 && face_color_gray_p (f
, color_name
))
1359 || (!NILP (Fx_display_grayscale_p (frame
))
1360 && face_color_gray_p (f
, color_name
)))
1363 tty_defined_color (f
, color_name
, ¬_used
, 0);
1367 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1368 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1369 FRAME specifies the frame and thus the display for interpreting COLOR.
1370 If FRAME is nil or omitted, use the selected frame. */)
1372 Lisp_Object color
, frame
;
1376 CHECK_STRING (color
);
1378 frame
= selected_frame
;
1380 CHECK_FRAME (frame
);
1382 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1386 DEFUN ("color-supported-p", Fcolor_supported_p
,
1387 Scolor_supported_p
, 1, 3, 0,
1388 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1389 BACKGROUND-P non-nil means COLOR is used as a background.
1390 Otherwise, this function tells whether it can be used as a foreground.
1391 If FRAME is nil or omitted, use the selected frame.
1392 COLOR must be a valid color name. */)
1393 (color
, frame
, background_p
)
1394 Lisp_Object frame
, color
, background_p
;
1398 CHECK_STRING (color
);
1400 frame
= selected_frame
;
1402 CHECK_FRAME (frame
);
1404 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1410 /* Load color with name NAME for use by face FACE on frame F.
1411 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1412 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1413 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1414 pixel color. If color cannot be loaded, display a message, and
1415 return the foreground, background or underline color of F, but
1416 record that fact in flags of the face so that we don't try to free
1420 load_color (f
, face
, name
, target_index
)
1424 enum lface_attribute_index target_index
;
1428 xassert (STRINGP (name
));
1429 xassert (target_index
== LFACE_FOREGROUND_INDEX
1430 || target_index
== LFACE_BACKGROUND_INDEX
1431 || target_index
== LFACE_UNDERLINE_INDEX
1432 || target_index
== LFACE_OVERLINE_INDEX
1433 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1434 || target_index
== LFACE_BOX_INDEX
);
1436 /* if the color map is full, defined_color will return a best match
1437 to the values in an existing cell. */
1438 if (!defined_color (f
, SDATA (name
), &color
, 1))
1440 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1442 switch (target_index
)
1444 case LFACE_FOREGROUND_INDEX
:
1445 face
->foreground_defaulted_p
= 1;
1446 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1449 case LFACE_BACKGROUND_INDEX
:
1450 face
->background_defaulted_p
= 1;
1451 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1454 case LFACE_UNDERLINE_INDEX
:
1455 face
->underline_defaulted_p
= 1;
1456 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1459 case LFACE_OVERLINE_INDEX
:
1460 face
->overline_color_defaulted_p
= 1;
1461 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1464 case LFACE_STRIKE_THROUGH_INDEX
:
1465 face
->strike_through_color_defaulted_p
= 1;
1466 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1469 case LFACE_BOX_INDEX
:
1470 face
->box_color_defaulted_p
= 1;
1471 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1480 ++ncolors_allocated
;
1487 #ifdef HAVE_WINDOW_SYSTEM
1489 /* Load colors for face FACE which is used on frame F. Colors are
1490 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1491 of ATTRS. If the background color specified is not supported on F,
1492 try to emulate gray colors with a stipple from Vface_default_stipple. */
1495 load_face_colors (f
, face
, attrs
)
1502 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1503 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1505 /* Swap colors if face is inverse-video. */
1506 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1514 /* Check for support for foreground, not for background because
1515 face_color_supported_p is smart enough to know that grays are
1516 "supported" as background because we are supposed to use stipple
1518 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1519 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1521 x_destroy_bitmap (f
, face
->stipple
);
1522 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1523 &face
->pixmap_w
, &face
->pixmap_h
);
1526 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1527 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1531 /* Free color PIXEL on frame F. */
1534 unload_color (f
, pixel
)
1536 unsigned long pixel
;
1538 #ifdef HAVE_X_WINDOWS
1542 x_free_colors (f
, &pixel
, 1);
1549 /* Free colors allocated for FACE. */
1552 free_face_colors (f
, face
)
1556 /* PENDING(NS): need to do something here? */
1557 #ifdef HAVE_X_WINDOWS
1558 if (face
->colors_copied_bitwise_p
)
1563 if (!face
->foreground_defaulted_p
)
1565 x_free_colors (f
, &face
->foreground
, 1);
1566 IF_DEBUG (--ncolors_allocated
);
1569 if (!face
->background_defaulted_p
)
1571 x_free_colors (f
, &face
->background
, 1);
1572 IF_DEBUG (--ncolors_allocated
);
1575 if (face
->underline_p
1576 && !face
->underline_defaulted_p
)
1578 x_free_colors (f
, &face
->underline_color
, 1);
1579 IF_DEBUG (--ncolors_allocated
);
1582 if (face
->overline_p
1583 && !face
->overline_color_defaulted_p
)
1585 x_free_colors (f
, &face
->overline_color
, 1);
1586 IF_DEBUG (--ncolors_allocated
);
1589 if (face
->strike_through_p
1590 && !face
->strike_through_color_defaulted_p
)
1592 x_free_colors (f
, &face
->strike_through_color
, 1);
1593 IF_DEBUG (--ncolors_allocated
);
1596 if (face
->box
!= FACE_NO_BOX
1597 && !face
->box_color_defaulted_p
)
1599 x_free_colors (f
, &face
->box_color
, 1);
1600 IF_DEBUG (--ncolors_allocated
);
1604 #endif /* HAVE_X_WINDOWS */
1607 #endif /* HAVE_WINDOW_SYSTEM */
1611 /***********************************************************************
1613 ***********************************************************************/
1615 /* An enumerator for each field of an XLFD font name. */
1636 /* An enumerator for each possible slant value of a font. Taken from
1637 the XLFD specification. */
1645 XLFD_SLANT_REVERSE_ITALIC
,
1646 XLFD_SLANT_REVERSE_OBLIQUE
,
1650 /* Relative font weight according to XLFD documentation. */
1654 XLFD_WEIGHT_UNKNOWN
,
1655 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1656 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1657 XLFD_WEIGHT_LIGHT
, /* 30 */
1658 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1659 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1660 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1661 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1662 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1663 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1666 /* Relative proportionate width. */
1670 XLFD_SWIDTH_UNKNOWN
,
1671 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1672 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1673 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1674 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1675 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1676 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1677 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1678 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1679 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1682 /* Order by which font selection chooses fonts. The default values
1683 mean `first, find a best match for the font width, then for the
1684 font height, then for weight, then for slant.' This variable can be
1685 set via set-face-font-sort-order. */
1687 static int font_sort_order
[4];
1689 #ifdef HAVE_WINDOW_SYSTEM
1691 /* Return a rescaling ratio of a font of NAME. */
1694 font_rescale_ratio (name
)
1697 Lisp_Object tail
, elt
;
1699 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
1702 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
1703 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
1704 return XFLOAT_DATA (XCDR (elt
));
1709 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1712 compare_fonts_by_sort_order (v1
, v2
)
1713 const void *v1
, *v2
;
1715 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1716 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1719 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1721 enum font_property_index idx
= font_props_for_sorting
[i
];
1722 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1725 if (idx
<= FONT_REGISTRY_INDEX
)
1728 result
= STRINGP (val2
) ? strcmp (SDATA (val1
), SDATA (val2
)) : -1;
1730 result
= STRINGP (val2
) ? 1 : 0;
1734 if (INTEGERP (val1
))
1735 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1737 result
= INTEGERP (val2
) ? 1 : 0;
1745 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1746 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1747 If FAMILY is omitted or nil, list all families.
1748 Otherwise, FAMILY must be a string, possibly containing wildcards
1750 If FRAME is omitted or nil, use the selected frame.
1751 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1752 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1753 FAMILY is the font family name. POINT-SIZE is the size of the
1754 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1755 width, weight and slant of the font. These symbols are the same as for
1756 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1757 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1758 giving the registry and encoding of the font.
1759 The result list is sorted according to the current setting of
1760 the face font sort order. */)
1762 Lisp_Object family
, frame
;
1764 Lisp_Object font_spec
, vec
;
1769 frame
= selected_frame
;
1770 CHECK_LIVE_FRAME (frame
);
1772 font_spec
= Ffont_spec (0, NULL
);
1775 CHECK_STRING (family
);
1776 font_parse_family_registry (family
, Qnil
, font_spec
);
1778 vec
= font_list_entities (frame
, font_spec
);
1779 nfonts
= ASIZE (vec
);
1784 for (i
= 0; i
< 4; i
++)
1785 switch (font_sort_order
[i
])
1788 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1789 case XLFD_POINT_SIZE
:
1790 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1792 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1794 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1796 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1797 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1798 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1799 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1801 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1802 compare_fonts_by_sort_order
);
1806 for (i
= nfonts
- 1; i
>= 0; --i
)
1808 Lisp_Object font
= AREF (vec
, i
);
1809 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1811 Lisp_Object spacing
;
1813 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1814 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1815 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1816 XFRAME (frame
)->resy
);
1817 ASET (v
, 2, make_number (point
));
1818 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1819 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1820 spacing
= Ffont_get (font
, QCspacing
);
1821 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1822 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1823 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1825 result
= Fcons (v
, result
);
1832 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
1834 doc
: /* Return a list of available font families on FRAME.
1835 If FRAME is omitted or nil, use the selected frame.
1836 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
1837 is a font family, and FIXED-P is non-nil if fonts of that family
1838 are fixed-pitch. */)
1842 return Ffont_family_list (frame
);
1846 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1847 doc
: /* Return a list of the names of available fonts matching PATTERN.
1848 If optional arguments FACE and FRAME are specified, return only fonts
1849 the same size as FACE on FRAME.
1850 PATTERN is a string, perhaps with wildcard characters;
1851 the * character matches any substring, and
1852 the ? character matches any single character.
1853 PATTERN is case-insensitive.
1854 FACE is a face name--a symbol.
1856 The return value is a list of strings, suitable as arguments to
1859 Fonts Emacs can't use may or may not be excluded
1860 even if they match PATTERN and FACE.
1861 The optional fourth argument MAXIMUM sets a limit on how many
1862 fonts to match. The first MAXIMUM fonts are reported.
1863 The optional fifth argument WIDTH, if specified, is a number of columns
1864 occupied by a character of a font. In that case, return only fonts
1865 the WIDTH times as wide as FACE on FRAME. */)
1866 (pattern
, face
, frame
, maximum
, width
)
1867 Lisp_Object pattern
, face
, frame
, maximum
, width
;
1873 CHECK_STRING (pattern
);
1875 if (! NILP (maximum
))
1876 CHECK_NATNUM (maximum
);
1879 CHECK_NUMBER (width
);
1881 /* We can't simply call check_x_frame because this function may be
1882 called before any frame is created. */
1884 frame
= selected_frame
;
1885 f
= frame_or_selected_frame (frame
, 2);
1886 if (! FRAME_WINDOW_P (f
))
1888 /* Perhaps we have not yet created any frame. */
1894 /* Determine the width standard for comparison with the fonts we find. */
1900 /* This is of limited utility since it works with character
1901 widths. Keep it for compatibility. --gerd. */
1902 int face_id
= lookup_named_face (f
, face
, 0);
1903 struct face
*face
= (face_id
< 0
1905 : FACE_FROM_ID (f
, face_id
));
1907 if (face
&& face
->font
)
1909 size
= face
->font
->pixel_size
;
1910 avgwidth
= face
->font
->average_width
;
1914 size
= FRAME_FONT (f
)->pixel_size
;
1915 avgwidth
= FRAME_FONT (f
)->average_width
;
1918 avgwidth
*= XINT (width
);
1922 Lisp_Object font_spec
;
1923 Lisp_Object args
[2], tail
;
1925 font_spec
= font_spec_from_name (pattern
);
1928 Ffont_put (font_spec
, QCsize
, make_number (size
));
1929 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1931 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1932 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1933 XSETCAR (tail
, Ffont_xlfd_name (XCAR (tail
), Qnil
));
1935 /* We don't have to check fontsets. */
1937 args
[1] = list_fontsets (f
, pattern
, size
);
1938 return Fnconc (2, args
);
1942 #endif /* HAVE_WINDOW_SYSTEM */
1946 /***********************************************************************
1948 ***********************************************************************/
1950 /* Access face attributes of face LFACE, a Lisp vector. */
1952 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1953 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1954 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1955 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1956 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1957 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1958 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1959 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1960 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1961 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1962 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1963 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1964 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1965 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1966 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1967 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1968 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1970 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1971 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1973 #define LFACEP(LFACE) \
1975 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
1976 && EQ (AREF (LFACE, 0), Qface))
1981 /* Check consistency of Lisp face attribute vector ATTRS. */
1984 check_lface_attrs (attrs
)
1987 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1988 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
1989 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
1990 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
1991 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
1992 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
1993 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
1994 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
1995 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
1996 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
1997 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
1998 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
1999 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2000 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2001 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2002 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
2003 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2004 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2005 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
2006 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2007 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2008 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
2009 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2010 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2011 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2012 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
2013 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2014 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2015 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2016 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2017 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2018 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2019 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2020 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
2021 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2022 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2023 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2024 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2025 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2026 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
2027 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2028 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2029 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
2030 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2031 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2032 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
2033 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2034 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2035 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
2036 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2037 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2038 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2039 #ifdef HAVE_WINDOW_SYSTEM
2040 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2041 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
2042 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2043 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2044 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2045 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
2046 || FONTP (attrs
[LFACE_FONT_INDEX
]));
2047 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
2048 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
2053 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2061 xassert (LFACEP (lface
));
2062 check_lface_attrs (XVECTOR (lface
)->contents
);
2066 #else /* GLYPH_DEBUG == 0 */
2068 #define check_lface_attrs(attrs) (void) 0
2069 #define check_lface(lface) (void) 0
2071 #endif /* GLYPH_DEBUG == 0 */
2075 /* Face-merge cycle checking. */
2077 enum named_merge_point_kind
2079 NAMED_MERGE_POINT_NORMAL
,
2080 NAMED_MERGE_POINT_REMAP
2083 /* A `named merge point' is simply a point during face-merging where we
2084 look up a face by name. We keep a stack of which named lookups we're
2085 currently processing so that we can easily detect cycles, using a
2086 linked- list of struct named_merge_point structures, typically
2087 allocated on the stack frame of the named lookup functions which are
2088 active (so no consing is required). */
2089 struct named_merge_point
2091 Lisp_Object face_name
;
2092 enum named_merge_point_kind named_merge_point_kind
;
2093 struct named_merge_point
*prev
;
2097 /* If a face merging cycle is detected for FACE_NAME, return 0,
2098 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
2099 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
2100 pointed to by NAMED_MERGE_POINTS, and return 1. */
2103 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
2104 Lisp_Object face_name
,
2105 enum named_merge_point_kind named_merge_point_kind
,
2106 struct named_merge_point
**named_merge_points
)
2108 struct named_merge_point
*prev
;
2110 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
2111 if (EQ (face_name
, prev
->face_name
))
2113 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
2114 /* A cycle, so fail. */
2116 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
2117 /* A remap `hides ' any previous normal merge points
2118 (because the remap means that it's actually different face),
2119 so as we know the current merge point must be normal, we
2120 can just assume it's OK. */
2124 new_named_merge_point
->face_name
= face_name
;
2125 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
2126 new_named_merge_point
->prev
= *named_merge_points
;
2128 *named_merge_points
= new_named_merge_point
;
2135 #if 0 /* Seems to be unused. */
2137 internal_resolve_face_name (nargs
, args
)
2141 return Fget (args
[0], args
[1]);
2145 resolve_face_name_error (ignore
)
2152 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2153 to make it a symbol. If FACE_NAME is an alias for another face,
2154 return that face's name.
2156 Return default face in case of errors. */
2159 resolve_face_name (face_name
, signal_p
)
2160 Lisp_Object face_name
;
2163 Lisp_Object orig_face
;
2164 Lisp_Object tortoise
, hare
;
2166 if (STRINGP (face_name
))
2167 face_name
= intern (SDATA (face_name
));
2169 if (NILP (face_name
) || !SYMBOLP (face_name
))
2172 orig_face
= face_name
;
2173 tortoise
= hare
= face_name
;
2178 hare
= Fget (hare
, Qface_alias
);
2179 if (NILP (hare
) || !SYMBOLP (hare
))
2183 hare
= Fget (hare
, Qface_alias
);
2184 if (NILP (hare
) || !SYMBOLP (hare
))
2187 tortoise
= Fget (tortoise
, Qface_alias
);
2188 if (EQ (hare
, tortoise
))
2191 xsignal1 (Qcircular_list
, orig_face
);
2200 /* Return the face definition of FACE_NAME on frame F. F null means
2201 return the definition for new frames. FACE_NAME may be a string or
2202 a symbol (apparently Emacs 20.2 allowed strings as face names in
2203 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2204 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2205 is zero, value is nil if FACE_NAME is not a valid face name. */
2206 static INLINE Lisp_Object
2207 lface_from_face_name_no_resolve (f
, face_name
, signal_p
)
2209 Lisp_Object face_name
;
2215 lface
= assq_no_quit (face_name
, f
->face_alist
);
2217 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2220 lface
= XCDR (lface
);
2222 signal_error ("Invalid face", face_name
);
2224 check_lface (lface
);
2229 /* Return the face definition of FACE_NAME on frame F. F null means
2230 return the definition for new frames. FACE_NAME may be a string or
2231 a symbol (apparently Emacs 20.2 allowed strings as face names in
2232 face text properties; Ediff uses that). If FACE_NAME is an alias
2233 for another face, return that face's definition. If SIGNAL_P is
2234 non-zero, signal an error if FACE_NAME is not a valid face name.
2235 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2237 static INLINE Lisp_Object
2238 lface_from_face_name (f
, face_name
, signal_p
)
2240 Lisp_Object face_name
;
2243 face_name
= resolve_face_name (face_name
, signal_p
);
2244 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2248 /* Get face attributes of face FACE_NAME from frame-local faces on
2249 frame F. Store the resulting attributes in ATTRS which must point
2250 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2251 is non-zero, signal an error if FACE_NAME does not name a face.
2252 Otherwise, value is zero if FACE_NAME is not a face. */
2255 get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
)
2257 Lisp_Object face_name
;
2263 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2266 bcopy (XVECTOR (lface
)->contents
, attrs
,
2267 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2269 return !NILP (lface
);
2272 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2273 F. Store the resulting attributes in ATTRS which must point to a
2274 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2275 alias for another face, use that face's definition. If SIGNAL_P is
2276 non-zero, signal an error if FACE_NAME does not name a face.
2277 Otherwise, value is zero if FACE_NAME is not a face. */
2280 get_lface_attributes (f
, face_name
, attrs
, signal_p
, named_merge_points
)
2282 Lisp_Object face_name
;
2285 struct named_merge_point
*named_merge_points
;
2287 Lisp_Object face_remapping
;
2289 face_name
= resolve_face_name (face_name
, signal_p
);
2291 /* See if SYMBOL has been remapped to some other face (usually this
2292 is done buffer-locally). */
2293 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2294 if (CONSP (face_remapping
))
2296 struct named_merge_point named_merge_point
;
2298 if (push_named_merge_point (&named_merge_point
,
2299 face_name
, NAMED_MERGE_POINT_REMAP
,
2300 &named_merge_points
))
2304 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2305 attrs
[i
] = Qunspecified
;
2307 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2308 signal_p
, named_merge_points
);
2312 /* Default case, no remapping. */
2313 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2317 /* Non-zero if all attributes in face attribute vector ATTRS are
2318 specified, i.e. are non-nil. */
2321 lface_fully_specified_p (attrs
)
2326 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2327 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2328 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
])))
2331 return i
== LFACE_VECTOR_SIZE
;
2334 #ifdef HAVE_WINDOW_SYSTEM
2336 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2337 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2338 exception is `font' attribute. It is set to FONT_OBJECT regardless
2342 set_lface_from_font (f
, lface
, font_object
, force_p
)
2344 Lisp_Object lface
, font_object
;
2348 struct font
*font
= XFONT_OBJECT (font_object
);
2350 /* Set attributes only if unspecified, otherwise face defaults for
2351 new frames would never take effect. If the font doesn't have a
2352 specific property, set a normal value for that. */
2354 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2356 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2358 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2361 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2363 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2365 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2368 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2370 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2373 LFACE_HEIGHT (lface
) = make_number (pt
);
2376 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2378 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2379 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2381 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2383 val
= FONT_SLANT_FOR_FACE (font_object
);
2384 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2386 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2388 val
= FONT_WIDTH_FOR_FACE (font_object
);
2389 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2392 LFACE_FONT (lface
) = font_object
;
2396 #endif /* HAVE_WINDOW_SYSTEM */
2399 /* Merges the face height FROM with the face height TO, and returns the
2400 merged height. If FROM is an invalid height, then INVALID is
2401 returned instead. FROM and TO may be either absolute face heights or
2402 `relative' heights; the returned value is always an absolute height
2403 unless both FROM and TO are relative. GCPRO is a lisp value that
2404 will be protected from garbage-collection if this function makes a
2408 merge_face_heights (from
, to
, invalid
)
2409 Lisp_Object from
, to
, invalid
;
2411 Lisp_Object result
= invalid
;
2413 if (INTEGERP (from
))
2414 /* FROM is absolute, just use it as is. */
2416 else if (FLOATP (from
))
2417 /* FROM is a scale, use it to adjust TO. */
2420 /* relative X absolute => absolute */
2421 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2422 else if (FLOATP (to
))
2423 /* relative X relative => relative */
2424 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2425 else if (UNSPECIFIEDP (to
))
2428 else if (FUNCTIONP (from
))
2429 /* FROM is a function, which use to adjust TO. */
2431 /* Call function with current height as argument.
2432 From is the new height. */
2433 Lisp_Object args
[2];
2437 result
= safe_call (2, args
);
2439 /* Ensure that if TO was absolute, so is the result. */
2440 if (INTEGERP (to
) && !INTEGERP (result
))
2448 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2449 store the resulting attributes in TO, which must be already be
2450 completely specified and contain only absolute attributes. Every
2451 specified attribute of FROM overrides the corresponding attribute of
2452 TO; relative attributes in FROM are merged with the absolute value in
2453 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2454 loops in face inheritance/remapping; it should be 0 when called from
2458 merge_face_vectors (f
, from
, to
, named_merge_points
)
2460 Lisp_Object
*from
, *to
;
2461 struct named_merge_point
*named_merge_points
;
2465 /* If FROM inherits from some other faces, merge their attributes into
2466 TO before merging FROM's direct attributes. Note that an :inherit
2467 attribute of `unspecified' is the same as one of nil; we never
2468 merge :inherit attributes, so nil is more correct, but lots of
2469 other code uses `unspecified' as a generic value for face attributes. */
2470 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2471 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2472 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2474 i
= LFACE_FONT_INDEX
;
2475 if (!UNSPECIFIEDP (from
[i
]))
2477 if (!UNSPECIFIEDP (to
[i
]))
2478 to
[i
] = Fmerge_font_spec (from
[i
], to
[i
]);
2480 to
[i
] = Fcopy_font_spec (from
[i
]);
2481 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2484 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2485 if (!UNSPECIFIEDP (from
[i
]))
2487 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2489 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2490 font_clear_prop (to
, FONT_SIZE_INDEX
);
2492 else if (i
!= LFACE_FONT_INDEX
)
2495 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2496 font_clear_prop (to
,
2497 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2498 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2499 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2500 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2501 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2502 : FONT_SLANT_INDEX
));
2506 /* If `font' attribute is specified, reflect the font properties in
2507 it to the other attributes. */
2508 if (0 && !UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2509 font_update_lface (f
, to
);
2511 /* TO is always an absolute face, which should inherit from nothing.
2512 We blindly copy the :inherit attribute above and fix it up here. */
2513 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2516 /* Merge the named face FACE_NAME on frame F, into the vector of face
2517 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2518 inheritance. Returns true if FACE_NAME is a valid face name and
2519 merging succeeded. */
2522 merge_named_face (f
, face_name
, to
, named_merge_points
)
2524 Lisp_Object face_name
;
2526 struct named_merge_point
*named_merge_points
;
2528 struct named_merge_point named_merge_point
;
2530 if (push_named_merge_point (&named_merge_point
,
2531 face_name
, NAMED_MERGE_POINT_NORMAL
,
2532 &named_merge_points
))
2534 struct gcpro gcpro1
;
2535 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2536 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2540 GCPRO1 (named_merge_point
.face_name
);
2541 merge_face_vectors (f
, from
, to
, named_merge_points
);
2552 /* Merge face attributes from the lisp `face reference' FACE_REF on
2553 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2554 problems with FACE_REF cause an error message to be shown. Return
2555 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2556 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2557 list structure; it may be 0 for most callers.
2559 FACE_REF may be a single face specification or a list of such
2560 specifications. Each face specification can be:
2562 1. A symbol or string naming a Lisp face.
2564 2. A property list of the form (KEYWORD VALUE ...) where each
2565 KEYWORD is a face attribute name, and value is an appropriate value
2568 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2569 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2570 for compatibility with 20.2.
2572 Face specifications earlier in lists take precedence over later
2576 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
2578 Lisp_Object face_ref
;
2581 struct named_merge_point
*named_merge_points
;
2583 int ok
= 1; /* Succeed without an error? */
2585 if (CONSP (face_ref
))
2587 Lisp_Object first
= XCAR (face_ref
);
2589 if (EQ (first
, Qforeground_color
)
2590 || EQ (first
, Qbackground_color
))
2592 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2593 . COLOR). COLOR must be a string. */
2594 Lisp_Object color_name
= XCDR (face_ref
);
2595 Lisp_Object color
= first
;
2597 if (STRINGP (color_name
))
2599 if (EQ (color
, Qforeground_color
))
2600 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2602 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2607 add_to_log ("Invalid face color", color_name
, Qnil
);
2611 else if (SYMBOLP (first
)
2612 && *SDATA (SYMBOL_NAME (first
)) == ':')
2614 /* Assume this is the property list form. */
2615 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2617 Lisp_Object keyword
= XCAR (face_ref
);
2618 Lisp_Object value
= XCAR (XCDR (face_ref
));
2621 /* Specifying `unspecified' is a no-op. */
2622 if (EQ (value
, Qunspecified
))
2624 else if (EQ (keyword
, QCfamily
))
2626 if (STRINGP (value
))
2628 to
[LFACE_FAMILY_INDEX
] = value
;
2629 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2634 else if (EQ (keyword
, QCfoundry
))
2636 if (STRINGP (value
))
2638 to
[LFACE_FOUNDRY_INDEX
] = value
;
2639 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2644 else if (EQ (keyword
, QCheight
))
2646 Lisp_Object new_height
=
2647 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2649 if (! NILP (new_height
))
2651 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2652 font_clear_prop (to
, FONT_SIZE_INDEX
);
2657 else if (EQ (keyword
, QCweight
))
2659 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2661 to
[LFACE_WEIGHT_INDEX
] = value
;
2662 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2667 else if (EQ (keyword
, QCslant
))
2669 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2671 to
[LFACE_SLANT_INDEX
] = value
;
2672 font_clear_prop (to
, FONT_SLANT_INDEX
);
2677 else if (EQ (keyword
, QCunderline
))
2682 to
[LFACE_UNDERLINE_INDEX
] = value
;
2686 else if (EQ (keyword
, QCoverline
))
2691 to
[LFACE_OVERLINE_INDEX
] = value
;
2695 else if (EQ (keyword
, QCstrike_through
))
2700 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2704 else if (EQ (keyword
, QCbox
))
2707 value
= make_number (1);
2708 if (INTEGERP (value
)
2712 to
[LFACE_BOX_INDEX
] = value
;
2716 else if (EQ (keyword
, QCinverse_video
)
2717 || EQ (keyword
, QCreverse_video
))
2719 if (EQ (value
, Qt
) || NILP (value
))
2720 to
[LFACE_INVERSE_INDEX
] = value
;
2724 else if (EQ (keyword
, QCforeground
))
2726 if (STRINGP (value
))
2727 to
[LFACE_FOREGROUND_INDEX
] = value
;
2731 else if (EQ (keyword
, QCbackground
))
2733 if (STRINGP (value
))
2734 to
[LFACE_BACKGROUND_INDEX
] = value
;
2738 else if (EQ (keyword
, QCstipple
))
2740 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
2741 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2742 if (!NILP (pixmap_p
))
2743 to
[LFACE_STIPPLE_INDEX
] = value
;
2748 else if (EQ (keyword
, QCwidth
))
2750 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2752 to
[LFACE_SWIDTH_INDEX
] = value
;
2753 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2758 else if (EQ (keyword
, QCinherit
))
2760 /* This is not really very useful; it's just like a
2761 normal face reference. */
2762 if (! merge_face_ref (f
, value
, to
,
2763 err_msgs
, named_merge_points
))
2771 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2775 face_ref
= XCDR (XCDR (face_ref
));
2780 /* This is a list of face refs. Those at the beginning of the
2781 list take precedence over what follows, so we have to merge
2782 from the end backwards. */
2783 Lisp_Object next
= XCDR (face_ref
);
2786 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2788 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2794 /* FACE_REF ought to be a face name. */
2795 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2796 if (!ok
&& err_msgs
)
2797 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2804 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2805 Sinternal_make_lisp_face
, 1, 2, 0,
2806 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2807 If FACE was not known as a face before, create a new one.
2808 If optional argument FRAME is specified, make a frame-local face
2809 for that frame. Otherwise operate on the global face definition.
2810 Value is a vector of face attributes. */)
2812 Lisp_Object face
, frame
;
2814 Lisp_Object global_lface
, lface
;
2818 CHECK_SYMBOL (face
);
2819 global_lface
= lface_from_face_name (NULL
, face
, 0);
2823 CHECK_LIVE_FRAME (frame
);
2825 lface
= lface_from_face_name (f
, face
, 0);
2828 f
= NULL
, lface
= Qnil
;
2830 /* Add a global definition if there is none. */
2831 if (NILP (global_lface
))
2833 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2835 ASET (global_lface
, 0, Qface
);
2836 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2837 Vface_new_frame_defaults
);
2839 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2840 face id to Lisp face is given by the vector lface_id_to_name.
2841 The mapping from Lisp face to Lisp face id is given by the
2842 property `face' of the Lisp face name. */
2843 if (next_lface_id
== lface_id_to_name_size
)
2845 int new_size
= max (50, 2 * lface_id_to_name_size
);
2846 int sz
= new_size
* sizeof *lface_id_to_name
;
2847 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2848 lface_id_to_name_size
= new_size
;
2851 lface_id_to_name
[next_lface_id
] = face
;
2852 Fput (face
, Qface
, make_number (next_lface_id
));
2856 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2857 ASET (global_lface
, i
, Qunspecified
);
2859 /* Add a frame-local definition. */
2864 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2866 ASET (lface
, 0, Qface
);
2867 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2870 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2871 ASET (lface
, i
, Qunspecified
);
2874 lface
= global_lface
;
2876 /* Changing a named face means that all realized faces depending on
2877 that face are invalid. Since we cannot tell which realized faces
2878 depend on the face, make sure they are all removed. This is done
2879 by incrementing face_change_count. The next call to
2880 init_iterator will then free realized faces. */
2881 if (NILP (Fget (face
, Qface_no_inherit
)))
2883 ++face_change_count
;
2884 ++windows_or_buffers_changed
;
2887 xassert (LFACEP (lface
));
2888 check_lface (lface
);
2893 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2894 Sinternal_lisp_face_p
, 1, 2, 0,
2895 doc
: /* Return non-nil if FACE names a face.
2896 If optional second argument FRAME is non-nil, check for the
2897 existence of a frame-local face with name FACE on that frame.
2898 Otherwise check for the existence of a global face. */)
2900 Lisp_Object face
, frame
;
2904 face
= resolve_face_name (face
, 1);
2908 CHECK_LIVE_FRAME (frame
);
2909 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2912 lface
= lface_from_face_name (NULL
, face
, 0);
2918 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2919 Sinternal_copy_lisp_face
, 4, 4, 0,
2920 doc
: /* Copy face FROM to TO.
2921 If FRAME is t, copy the global face definition of FROM.
2922 Otherwise, copy the frame-local definition of FROM on FRAME.
2923 If NEW-FRAME is a frame, copy that data into the frame-local
2924 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2925 FRAME controls where the data is copied to.
2927 The value is TO. */)
2928 (from
, to
, frame
, new_frame
)
2929 Lisp_Object from
, to
, frame
, new_frame
;
2931 Lisp_Object lface
, copy
;
2933 CHECK_SYMBOL (from
);
2938 /* Copy global definition of FROM. We don't make copies of
2939 strings etc. because 20.2 didn't do it either. */
2940 lface
= lface_from_face_name (NULL
, from
, 1);
2941 copy
= Finternal_make_lisp_face (to
, Qnil
);
2945 /* Copy frame-local definition of FROM. */
2946 if (NILP (new_frame
))
2948 CHECK_LIVE_FRAME (frame
);
2949 CHECK_LIVE_FRAME (new_frame
);
2950 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2951 copy
= Finternal_make_lisp_face (to
, new_frame
);
2954 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
2955 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2957 /* Changing a named face means that all realized faces depending on
2958 that face are invalid. Since we cannot tell which realized faces
2959 depend on the face, make sure they are all removed. This is done
2960 by incrementing face_change_count. The next call to
2961 init_iterator will then free realized faces. */
2962 if (NILP (Fget (to
, Qface_no_inherit
)))
2964 ++face_change_count
;
2965 ++windows_or_buffers_changed
;
2972 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2973 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2974 doc
: /* Set attribute ATTR of FACE to VALUE.
2975 FRAME being a frame means change the face on that frame.
2976 FRAME nil means change the face of the selected frame.
2977 FRAME t means change the default for new frames.
2978 FRAME 0 means change the face on all frames, and change the default
2980 (face
, attr
, value
, frame
)
2981 Lisp_Object face
, attr
, value
, frame
;
2984 Lisp_Object old_value
= Qnil
;
2985 /* Set one of enum font_property_index (> 0) if ATTR is one of
2986 font-related attributes other than QCfont and QCfontset. */
2987 enum font_property_index prop_index
= 0;
2989 CHECK_SYMBOL (face
);
2990 CHECK_SYMBOL (attr
);
2992 face
= resolve_face_name (face
, 1);
2994 /* If FRAME is 0, change face on all frames, and change the
2995 default for new frames. */
2996 if (INTEGERP (frame
) && XINT (frame
) == 0)
2999 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3000 FOR_EACH_FRAME (tail
, frame
)
3001 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3005 /* Set lface to the Lisp attribute vector of FACE. */
3008 lface
= lface_from_face_name (NULL
, face
, 1);
3010 /* When updating face-new-frame-defaults, we put :ignore-defface
3011 where the caller wants `unspecified'. This forces the frame
3012 defaults to ignore the defface value. Otherwise, the defface
3013 will take effect, which is generally not what is intended.
3014 The value of that attribute will be inherited from some other
3015 face during face merging. See internal_merge_in_global_face. */
3016 if (UNSPECIFIEDP (value
))
3017 value
= Qignore_defface
;
3022 frame
= selected_frame
;
3024 CHECK_LIVE_FRAME (frame
);
3025 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3027 /* If a frame-local face doesn't exist yet, create one. */
3029 lface
= Finternal_make_lisp_face (face
, frame
);
3032 if (EQ (attr
, QCfamily
))
3034 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3036 CHECK_STRING (value
);
3037 if (SCHARS (value
) == 0)
3038 signal_error ("Invalid face family", value
);
3040 old_value
= LFACE_FAMILY (lface
);
3041 LFACE_FAMILY (lface
) = value
;
3042 prop_index
= FONT_FAMILY_INDEX
;
3044 else if (EQ (attr
, QCfoundry
))
3046 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3048 CHECK_STRING (value
);
3049 if (SCHARS (value
) == 0)
3050 signal_error ("Invalid face foundry", value
);
3052 old_value
= LFACE_FOUNDRY (lface
);
3053 LFACE_FOUNDRY (lface
) = value
;
3054 prop_index
= FONT_FOUNDRY_INDEX
;
3056 else if (EQ (attr
, QCheight
))
3058 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3062 test
= (EQ (face
, Qdefault
)
3064 /* The default face must have an absolute size,
3065 otherwise, we do a test merge with a random
3066 height to see if VALUE's ok. */
3067 : merge_face_heights (value
, make_number (10), Qnil
));
3069 if (!INTEGERP (test
) || XINT (test
) <= 0)
3070 signal_error ("Invalid face height", value
);
3073 old_value
= LFACE_HEIGHT (lface
);
3074 LFACE_HEIGHT (lface
) = value
;
3075 prop_index
= FONT_SIZE_INDEX
;
3077 else if (EQ (attr
, QCweight
))
3079 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3081 CHECK_SYMBOL (value
);
3082 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
3083 signal_error ("Invalid face weight", value
);
3085 old_value
= LFACE_WEIGHT (lface
);
3086 LFACE_WEIGHT (lface
) = value
;
3087 prop_index
= FONT_WEIGHT_INDEX
;
3089 else if (EQ (attr
, QCslant
))
3091 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3093 CHECK_SYMBOL (value
);
3094 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
3095 signal_error ("Invalid face slant", value
);
3097 old_value
= LFACE_SLANT (lface
);
3098 LFACE_SLANT (lface
) = value
;
3099 prop_index
= FONT_SLANT_INDEX
;
3101 else if (EQ (attr
, QCunderline
))
3103 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3104 if ((SYMBOLP (value
)
3106 && !EQ (value
, Qnil
))
3107 /* Underline color. */
3109 && SCHARS (value
) == 0))
3110 signal_error ("Invalid face underline", value
);
3112 old_value
= LFACE_UNDERLINE (lface
);
3113 LFACE_UNDERLINE (lface
) = value
;
3115 else if (EQ (attr
, QCoverline
))
3117 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3118 if ((SYMBOLP (value
)
3120 && !EQ (value
, Qnil
))
3121 /* Overline color. */
3123 && SCHARS (value
) == 0))
3124 signal_error ("Invalid face overline", value
);
3126 old_value
= LFACE_OVERLINE (lface
);
3127 LFACE_OVERLINE (lface
) = value
;
3129 else if (EQ (attr
, QCstrike_through
))
3131 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3132 if ((SYMBOLP (value
)
3134 && !EQ (value
, Qnil
))
3135 /* Strike-through color. */
3137 && SCHARS (value
) == 0))
3138 signal_error ("Invalid face strike-through", value
);
3140 old_value
= LFACE_STRIKE_THROUGH (lface
);
3141 LFACE_STRIKE_THROUGH (lface
) = value
;
3143 else if (EQ (attr
, QCbox
))
3147 /* Allow t meaning a simple box of width 1 in foreground color
3150 value
= make_number (1);
3152 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3154 else if (NILP (value
))
3156 else if (INTEGERP (value
))
3157 valid_p
= XINT (value
) != 0;
3158 else if (STRINGP (value
))
3159 valid_p
= SCHARS (value
) > 0;
3160 else if (CONSP (value
))
3176 if (EQ (k
, QCline_width
))
3178 if (!INTEGERP (v
) || XINT (v
) == 0)
3181 else if (EQ (k
, QCcolor
))
3183 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3186 else if (EQ (k
, QCstyle
))
3188 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3195 valid_p
= NILP (tem
);
3201 signal_error ("Invalid face box", value
);
3203 old_value
= LFACE_BOX (lface
);
3204 LFACE_BOX (lface
) = value
;
3206 else if (EQ (attr
, QCinverse_video
)
3207 || EQ (attr
, QCreverse_video
))
3209 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3211 CHECK_SYMBOL (value
);
3212 if (!EQ (value
, Qt
) && !NILP (value
))
3213 signal_error ("Invalid inverse-video face attribute value", value
);
3215 old_value
= LFACE_INVERSE (lface
);
3216 LFACE_INVERSE (lface
) = value
;
3218 else if (EQ (attr
, QCforeground
))
3220 /* Compatibility with 20.x. */
3222 value
= Qunspecified
;
3223 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3225 /* Don't check for valid color names here because it depends
3226 on the frame (display) whether the color will be valid
3227 when the face is realized. */
3228 CHECK_STRING (value
);
3229 if (SCHARS (value
) == 0)
3230 signal_error ("Empty foreground color value", value
);
3232 old_value
= LFACE_FOREGROUND (lface
);
3233 LFACE_FOREGROUND (lface
) = value
;
3235 else if (EQ (attr
, QCbackground
))
3237 /* Compatibility with 20.x. */
3239 value
= Qunspecified
;
3240 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3242 /* Don't check for valid color names here because it depends
3243 on the frame (display) whether the color will be valid
3244 when the face is realized. */
3245 CHECK_STRING (value
);
3246 if (SCHARS (value
) == 0)
3247 signal_error ("Empty background color value", value
);
3249 old_value
= LFACE_BACKGROUND (lface
);
3250 LFACE_BACKGROUND (lface
) = value
;
3252 else if (EQ (attr
, QCstipple
))
3254 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3255 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3257 && NILP (Fbitmap_spec_p (value
)))
3258 signal_error ("Invalid stipple attribute", value
);
3259 old_value
= LFACE_STIPPLE (lface
);
3260 LFACE_STIPPLE (lface
) = value
;
3261 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3263 else if (EQ (attr
, QCwidth
))
3265 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3267 CHECK_SYMBOL (value
);
3268 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3269 signal_error ("Invalid face width", value
);
3271 old_value
= LFACE_SWIDTH (lface
);
3272 LFACE_SWIDTH (lface
) = value
;
3273 prop_index
= FONT_WIDTH_INDEX
;
3275 else if (EQ (attr
, QCfont
))
3277 #ifdef HAVE_WINDOW_SYSTEM
3278 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3280 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3284 old_value
= LFACE_FONT (lface
);
3285 if (! FONTP (value
))
3287 if (STRINGP (value
))
3289 int fontset
= fs_query_fontset (value
, 0);
3292 value
= fontset_ascii (fontset
);
3293 value
= font_spec_from_name (value
);
3296 signal_error ("Invalid font or font-spec", value
);
3299 f
= XFRAME (selected_frame
);
3302 if (! FONT_OBJECT_P (value
))
3304 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3305 Lisp_Object font_object
;
3307 font_object
= font_load_for_lface (f
, attrs
, value
);
3308 if (NILP (font_object
))
3309 signal_error ("Font not available", value
);
3310 value
= font_object
;
3312 set_lface_from_font (f
, lface
, value
, 1);
3315 LFACE_FONT (lface
) = value
;
3317 #endif /* HAVE_WINDOW_SYSTEM */
3319 else if (EQ (attr
, QCfontset
))
3321 #ifdef HAVE_WINDOW_SYSTEM
3322 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3326 old_value
= LFACE_FONTSET (lface
);
3327 tmp
= Fquery_fontset (value
, Qnil
);
3329 signal_error ("Invalid fontset name", value
);
3330 LFACE_FONTSET (lface
) = value
= tmp
;
3332 #endif /* HAVE_WINDOW_SYSTEM */
3334 else if (EQ (attr
, QCinherit
))
3337 if (SYMBOLP (value
))
3340 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3341 if (!SYMBOLP (XCAR (tail
)))
3344 LFACE_INHERIT (lface
) = value
;
3346 signal_error ("Invalid face inheritance", value
);
3348 else if (EQ (attr
, QCbold
))
3350 old_value
= LFACE_WEIGHT (lface
);
3351 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3352 prop_index
= FONT_WEIGHT_INDEX
;
3354 else if (EQ (attr
, QCitalic
))
3357 old_value
= LFACE_SLANT (lface
);
3358 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3359 prop_index
= FONT_SLANT_INDEX
;
3362 signal_error ("Invalid face attribute name", attr
);
3366 /* If a font-related attribute other than QCfont and QCfontset
3367 is specified, and if the original QCfont attribute has a font
3368 (font-spec or font-object), set the corresponding property in
3369 the font to nil so that the font selector doesn't think that
3370 the attribute is mandatory. Also, clear the average
3372 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3375 /* Changing a named face means that all realized faces depending on
3376 that face are invalid. Since we cannot tell which realized faces
3377 depend on the face, make sure they are all removed. This is done
3378 by incrementing face_change_count. The next call to
3379 init_iterator will then free realized faces. */
3381 && NILP (Fget (face
, Qface_no_inherit
))
3382 && NILP (Fequal (old_value
, value
)))
3384 ++face_change_count
;
3385 ++windows_or_buffers_changed
;
3388 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3389 && NILP (Fequal (old_value
, value
)))
3395 if (EQ (face
, Qdefault
))
3397 #ifdef HAVE_WINDOW_SYSTEM
3398 /* Changed font-related attributes of the `default' face are
3399 reflected in changed `font' frame parameters. */
3401 && (prop_index
|| EQ (attr
, QCfont
))
3402 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3403 set_font_frame_param (frame
, lface
);
3405 #endif /* HAVE_WINDOW_SYSTEM */
3407 if (EQ (attr
, QCforeground
))
3408 param
= Qforeground_color
;
3409 else if (EQ (attr
, QCbackground
))
3410 param
= Qbackground_color
;
3412 #ifdef HAVE_WINDOW_SYSTEM
3414 else if (EQ (face
, Qscroll_bar
))
3416 /* Changing the colors of `scroll-bar' sets frame parameters
3417 `scroll-bar-foreground' and `scroll-bar-background'. */
3418 if (EQ (attr
, QCforeground
))
3419 param
= Qscroll_bar_foreground
;
3420 else if (EQ (attr
, QCbackground
))
3421 param
= Qscroll_bar_background
;
3423 #endif /* not WINDOWSNT */
3424 else if (EQ (face
, Qborder
))
3426 /* Changing background color of `border' sets frame parameter
3428 if (EQ (attr
, QCbackground
))
3429 param
= Qborder_color
;
3431 else if (EQ (face
, Qcursor
))
3433 /* Changing background color of `cursor' sets frame parameter
3435 if (EQ (attr
, QCbackground
))
3436 param
= Qcursor_color
;
3438 else if (EQ (face
, Qmouse
))
3440 /* Changing background color of `mouse' sets frame parameter
3442 if (EQ (attr
, QCbackground
))
3443 param
= Qmouse_color
;
3445 #endif /* HAVE_WINDOW_SYSTEM */
3446 else if (EQ (face
, Qmenu
))
3448 /* Indicate that we have to update the menu bar when
3449 realizing faces on FRAME. FRAME t change the
3450 default for new frames. We do this by setting
3451 setting the flag in new face caches */
3454 struct frame
*f
= XFRAME (frame
);
3455 if (FRAME_FACE_CACHE (f
) == NULL
)
3456 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3457 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3460 menu_face_changed_default
= 1;
3466 /* Update `default-frame-alist', which is used for new frames. */
3468 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3471 /* Update the current frame's parameters. */
3474 cons
= XCAR (Vparam_value_alist
);
3475 XSETCAR (cons
, param
);
3476 XSETCDR (cons
, value
);
3477 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3486 #ifdef HAVE_WINDOW_SYSTEM
3488 /* Set the `font' frame parameter of FRAME determined from the
3489 font-object set in `default' face attributes LFACE. */
3492 set_font_frame_param (frame
, lface
)
3493 Lisp_Object frame
, lface
;
3495 struct frame
*f
= XFRAME (frame
);
3498 if (FRAME_WINDOW_P (f
)
3499 /* Don't do anything if the font is `unspecified'. This can
3500 happen during frame creation. */
3501 && (font
= LFACE_FONT (lface
),
3502 ! UNSPECIFIEDP (font
)))
3504 if (FONT_SPEC_P (font
))
3506 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3509 LFACE_FONT (lface
) = font
;
3511 f
->default_face_done_p
= 0;
3512 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3517 /* Update the corresponding face when frame parameter PARAM on frame F
3518 has been assigned the value NEW_VALUE. */
3521 update_face_from_frame_parameter (f
, param
, new_value
)
3523 Lisp_Object param
, new_value
;
3525 Lisp_Object face
= Qnil
;
3528 /* If there are no faces yet, give up. This is the case when called
3529 from Fx_create_frame, and we do the necessary things later in
3530 face-set-after-frame-defaults. */
3531 if (NILP (f
->face_alist
))
3534 if (EQ (param
, Qforeground_color
))
3537 lface
= lface_from_face_name (f
, face
, 1);
3538 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3539 ? new_value
: Qunspecified
);
3540 realize_basic_faces (f
);
3542 else if (EQ (param
, Qbackground_color
))
3546 /* Changing the background color might change the background
3547 mode, so that we have to load new defface specs.
3548 Call frame-update-face-colors to do that. */
3549 XSETFRAME (frame
, f
);
3550 call1 (Qframe_set_background_mode
, frame
);
3553 lface
= lface_from_face_name (f
, face
, 1);
3554 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3555 ? new_value
: Qunspecified
);
3556 realize_basic_faces (f
);
3558 else if (EQ (param
, Qborder_color
))
3561 lface
= lface_from_face_name (f
, face
, 1);
3562 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3563 ? new_value
: Qunspecified
);
3565 else if (EQ (param
, Qcursor_color
))
3568 lface
= lface_from_face_name (f
, face
, 1);
3569 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3570 ? new_value
: Qunspecified
);
3572 else if (EQ (param
, Qmouse_color
))
3575 lface
= lface_from_face_name (f
, face
, 1);
3576 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3577 ? new_value
: Qunspecified
);
3580 /* Changing a named face means that all realized faces depending on
3581 that face are invalid. Since we cannot tell which realized faces
3582 depend on the face, make sure they are all removed. This is done
3583 by incrementing face_change_count. The next call to
3584 init_iterator will then free realized faces. */
3586 && NILP (Fget (face
, Qface_no_inherit
)))
3588 ++face_change_count
;
3589 ++windows_or_buffers_changed
;
3594 /* Get the value of X resource RESOURCE, class CLASS for the display
3595 of frame FRAME. This is here because ordinary `x-get-resource'
3596 doesn't take a frame argument. */
3598 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3599 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3600 (resource
, class, frame
)
3601 Lisp_Object resource
, class, frame
;
3603 Lisp_Object value
= Qnil
;
3604 CHECK_STRING (resource
);
3605 CHECK_STRING (class);
3606 CHECK_LIVE_FRAME (frame
);
3608 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3609 resource
, class, Qnil
, Qnil
);
3615 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3616 If VALUE is "on" or "true", return t. If VALUE is "off" or
3617 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3618 error; if SIGNAL_P is zero, return 0. */
3621 face_boolean_x_resource_value (value
, signal_p
)
3625 Lisp_Object result
= make_number (0);
3627 xassert (STRINGP (value
));
3629 if (xstrcasecmp (SDATA (value
), "on") == 0
3630 || xstrcasecmp (SDATA (value
), "true") == 0)
3632 else if (xstrcasecmp (SDATA (value
), "off") == 0
3633 || xstrcasecmp (SDATA (value
), "false") == 0)
3635 else if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3636 result
= Qunspecified
;
3638 signal_error ("Invalid face attribute value from X resource", value
);
3644 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3645 Finternal_set_lisp_face_attribute_from_resource
,
3646 Sinternal_set_lisp_face_attribute_from_resource
,
3647 3, 4, 0, doc
: /* */)
3648 (face
, attr
, value
, frame
)
3649 Lisp_Object face
, attr
, value
, frame
;
3651 CHECK_SYMBOL (face
);
3652 CHECK_SYMBOL (attr
);
3653 CHECK_STRING (value
);
3655 if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3656 value
= Qunspecified
;
3657 else if (EQ (attr
, QCheight
))
3659 value
= Fstring_to_number (value
, make_number (10));
3660 if (XINT (value
) <= 0)
3661 signal_error ("Invalid face height from X resource", value
);
3663 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3664 value
= face_boolean_x_resource_value (value
, 1);
3665 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3666 value
= intern (SDATA (value
));
3667 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3668 value
= face_boolean_x_resource_value (value
, 1);
3669 else if (EQ (attr
, QCunderline
)
3670 || EQ (attr
, QCoverline
)
3671 || EQ (attr
, QCstrike_through
))
3673 Lisp_Object boolean_value
;
3675 /* If the result of face_boolean_x_resource_value is t or nil,
3676 VALUE does NOT specify a color. */
3677 boolean_value
= face_boolean_x_resource_value (value
, 0);
3678 if (SYMBOLP (boolean_value
))
3679 value
= boolean_value
;
3681 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3682 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3684 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3687 #endif /* HAVE_WINDOW_SYSTEM */
3690 /***********************************************************************
3692 ***********************************************************************/
3694 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3696 /* Make menus on frame F appear as specified by the `menu' face. */
3699 x_update_menu_appearance (f
)
3702 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3706 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3710 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3711 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3712 const char *myname
= SDATA (Vx_resource_name
);
3715 const char *popup_path
= "popup_menu";
3717 const char *popup_path
= "menu.popup";
3720 if (STRINGP (LFACE_FOREGROUND (lface
)))
3722 sprintf (line
, "%s.%s*foreground: %s",
3724 SDATA (LFACE_FOREGROUND (lface
)));
3725 XrmPutLineResource (&rdb
, line
);
3726 sprintf (line
, "%s.pane.menubar*foreground: %s",
3727 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3728 XrmPutLineResource (&rdb
, line
);
3732 if (STRINGP (LFACE_BACKGROUND (lface
)))
3734 sprintf (line
, "%s.%s*background: %s",
3736 SDATA (LFACE_BACKGROUND (lface
)));
3737 XrmPutLineResource (&rdb
, line
);
3738 sprintf (line
, "%s.pane.menubar*background: %s",
3739 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3740 XrmPutLineResource (&rdb
, line
);
3745 /* On Solaris 5.8, it's been reported that the `menu' face
3746 can be unspecified here, during startup. Why this
3747 happens remains unknown. -- cyd */
3748 && FONTP (LFACE_FONT (lface
))
3749 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3750 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3751 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3752 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3753 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3754 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3756 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3758 const char *suffix
= "List";
3761 #if defined HAVE_X_I18N
3763 const char *suffix
= "Set";
3765 const char *suffix
= "";
3772 #if defined HAVE_X_I18N
3773 extern char *xic_create_fontsetname
3774 P_ ((char *base_fontname
, Bool motif
));
3775 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3777 char *fontsetname
= (char *) SDATA (xlfd
);
3779 sprintf (line
, "%s.pane.menubar*font%s: %s",
3780 myname
, suffix
, fontsetname
);
3781 XrmPutLineResource (&rdb
, line
);
3782 sprintf (line
, "%s.%s*font%s: %s",
3783 myname
, popup_path
, suffix
, fontsetname
);
3784 XrmPutLineResource (&rdb
, line
);
3786 if (fontsetname
!= (char *) SDATA (xlfd
))
3787 xfree (fontsetname
);
3791 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3792 free_frame_menubar (f
);
3796 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3799 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3800 Sface_attribute_relative_p
,
3802 doc
: /* Check whether a face attribute value is relative.
3803 Specifically, this function returns t if the attribute ATTRIBUTE
3804 with the value VALUE is relative.
3806 A relative value is one that doesn't entirely override whatever is
3807 inherited from another face. For most possible attributes,
3808 the only relative value that users see is `unspecified'.
3809 However, for :height, floating point values are also relative. */)
3811 Lisp_Object attribute
, value
;
3813 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3815 else if (EQ (attribute
, QCheight
))
3816 return INTEGERP (value
) ? Qnil
: Qt
;
3821 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3823 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3824 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3825 the result will be absolute, otherwise it will be relative. */)
3826 (attribute
, value1
, value2
)
3827 Lisp_Object attribute
, value1
, value2
;
3829 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3831 else if (EQ (attribute
, QCheight
))
3832 return merge_face_heights (value1
, value2
, value1
);
3838 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3839 Sinternal_get_lisp_face_attribute
,
3841 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3842 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3843 face attribute name, signal an error.
3844 If the optional argument FRAME is given, report on face SYMBOL in that
3845 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3846 frames). If FRAME is omitted or nil, use the selected frame. */)
3847 (symbol
, keyword
, frame
)
3848 Lisp_Object symbol
, keyword
, frame
;
3850 Lisp_Object lface
, value
= Qnil
;
3852 CHECK_SYMBOL (symbol
);
3853 CHECK_SYMBOL (keyword
);
3856 lface
= lface_from_face_name (NULL
, symbol
, 1);
3860 frame
= selected_frame
;
3861 CHECK_LIVE_FRAME (frame
);
3862 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3865 if (EQ (keyword
, QCfamily
))
3866 value
= LFACE_FAMILY (lface
);
3867 else if (EQ (keyword
, QCfoundry
))
3868 value
= LFACE_FOUNDRY (lface
);
3869 else if (EQ (keyword
, QCheight
))
3870 value
= LFACE_HEIGHT (lface
);
3871 else if (EQ (keyword
, QCweight
))
3872 value
= LFACE_WEIGHT (lface
);
3873 else if (EQ (keyword
, QCslant
))
3874 value
= LFACE_SLANT (lface
);
3875 else if (EQ (keyword
, QCunderline
))
3876 value
= LFACE_UNDERLINE (lface
);
3877 else if (EQ (keyword
, QCoverline
))
3878 value
= LFACE_OVERLINE (lface
);
3879 else if (EQ (keyword
, QCstrike_through
))
3880 value
= LFACE_STRIKE_THROUGH (lface
);
3881 else if (EQ (keyword
, QCbox
))
3882 value
= LFACE_BOX (lface
);
3883 else if (EQ (keyword
, QCinverse_video
)
3884 || EQ (keyword
, QCreverse_video
))
3885 value
= LFACE_INVERSE (lface
);
3886 else if (EQ (keyword
, QCforeground
))
3887 value
= LFACE_FOREGROUND (lface
);
3888 else if (EQ (keyword
, QCbackground
))
3889 value
= LFACE_BACKGROUND (lface
);
3890 else if (EQ (keyword
, QCstipple
))
3891 value
= LFACE_STIPPLE (lface
);
3892 else if (EQ (keyword
, QCwidth
))
3893 value
= LFACE_SWIDTH (lface
);
3894 else if (EQ (keyword
, QCinherit
))
3895 value
= LFACE_INHERIT (lface
);
3896 else if (EQ (keyword
, QCfont
))
3897 value
= LFACE_FONT (lface
);
3898 else if (EQ (keyword
, QCfontset
))
3899 value
= LFACE_FONTSET (lface
);
3901 signal_error ("Invalid face attribute name", keyword
);
3903 if (IGNORE_DEFFACE_P (value
))
3904 return Qunspecified
;
3910 DEFUN ("internal-lisp-face-attribute-values",
3911 Finternal_lisp_face_attribute_values
,
3912 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3913 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3914 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3918 Lisp_Object result
= Qnil
;
3920 CHECK_SYMBOL (attr
);
3922 if (EQ (attr
, QCunderline
))
3923 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3924 else if (EQ (attr
, QCoverline
))
3925 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3926 else if (EQ (attr
, QCstrike_through
))
3927 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3928 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3929 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3935 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3936 Sinternal_merge_in_global_face
, 2, 2, 0,
3937 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3938 Default face attributes override any local face attributes. */)
3940 Lisp_Object face
, frame
;
3943 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3944 struct frame
*f
= XFRAME (frame
);
3946 CHECK_LIVE_FRAME (frame
);
3947 global_lface
= lface_from_face_name (NULL
, face
, 1);
3948 local_lface
= lface_from_face_name (f
, face
, 0);
3949 if (NILP (local_lface
))
3950 local_lface
= Finternal_make_lisp_face (face
, frame
);
3952 /* Make every specified global attribute override the local one.
3953 BEWARE!! This is only used from `face-set-after-frame-default' where
3954 the local frame is defined from default specs in `face-defface-spec'
3955 and those should be overridden by global settings. Hence the strange
3956 "global before local" priority. */
3957 lvec
= XVECTOR (local_lface
)->contents
;
3958 gvec
= XVECTOR (global_lface
)->contents
;
3959 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3960 if (IGNORE_DEFFACE_P (gvec
[i
]))
3961 lvec
[i
] = Qunspecified
;
3962 else if (! UNSPECIFIEDP (gvec
[i
]))
3965 /* If the default face was changed, update the face cache and the
3966 `font' frame parameter. */
3967 if (EQ (face
, Qdefault
))
3969 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3970 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3971 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3973 /* This can be NULL (e.g., in batch mode). */
3976 /* Ensure that the face vector is fully specified by merging
3977 the previously-cached vector. */
3978 bcopy (oldface
->lface
, attrs
, sizeof attrs
);
3979 merge_face_vectors (f
, lvec
, attrs
, 0);
3980 bcopy (attrs
, lvec
, sizeof attrs
);
3981 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3983 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3984 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3985 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3986 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3987 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3988 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3989 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3992 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3993 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
4003 /* The following function is implemented for compatibility with 20.2.
4004 The function is used in x-resolve-fonts when it is asked to
4005 return fonts with the same size as the font of a face. This is
4006 done in fontset.el. */
4008 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
4009 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4010 The font name is, by default, for ASCII characters.
4011 If the optional argument FRAME is given, report on face FACE in that frame.
4012 If FRAME is t, report on the defaults for face FACE (for new frames).
4013 The font default for a face is either nil, or a list
4014 of the form (bold), (italic) or (bold italic).
4015 If FRAME is omitted or nil, use the selected frame. And, in this case,
4016 if the optional third argument CHARACTER is given,
4017 return the font name used for CHARACTER. */)
4018 (face
, frame
, character
)
4019 Lisp_Object face
, frame
, character
;
4023 Lisp_Object result
= Qnil
;
4024 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4026 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4027 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4028 result
= Fcons (Qbold
, result
);
4030 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4031 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4032 result
= Fcons (Qitalic
, result
);
4038 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4039 int face_id
= lookup_named_face (f
, face
, 1);
4040 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4044 #ifdef HAVE_WINDOW_SYSTEM
4045 if (FRAME_WINDOW_P (f
) && !NILP (character
))
4047 CHECK_CHARACTER (character
);
4048 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
4049 face
= FACE_FROM_ID (f
, face_id
);
4052 ? face
->font
->props
[FONT_NAME_INDEX
]
4054 #else /* !HAVE_WINDOW_SYSTEM */
4055 return build_string (FRAME_MSDOS_P (f
)
4057 : FRAME_W32_P (f
) ? "w32term"
4064 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4065 all attributes are `equal'. Tries to be fast because this function
4066 is called quite often. */
4069 face_attr_equal_p (v1
, v2
)
4072 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4073 and the other is specified. */
4074 if (XTYPE (v1
) != XTYPE (v2
))
4083 if (SBYTES (v1
) != SBYTES (v2
))
4086 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4093 return !NILP (Fequal (v1
, v2
));
4098 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4099 all attributes are `equal'. Tries to be fast because this function
4100 is called quite often. */
4103 lface_equal_p (v1
, v2
)
4104 Lisp_Object
*v1
, *v2
;
4108 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4109 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4115 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4116 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4117 doc
: /* True if FACE1 and FACE2 are equal.
4118 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4119 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4120 If FRAME is omitted or nil, use the selected frame. */)
4121 (face1
, face2
, frame
)
4122 Lisp_Object face1
, face2
, frame
;
4126 Lisp_Object lface1
, lface2
;
4131 /* Don't use check_x_frame here because this function is called
4132 before X frames exist. At that time, if FRAME is nil,
4133 selected_frame will be used which is the frame dumped with
4134 Emacs. That frame is not an X frame. */
4135 f
= frame_or_selected_frame (frame
, 2);
4137 lface1
= lface_from_face_name (f
, face1
, 1);
4138 lface2
= lface_from_face_name (f
, face2
, 1);
4139 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4140 XVECTOR (lface2
)->contents
);
4141 return equal_p
? Qt
: Qnil
;
4145 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4146 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4147 doc
: /* True if FACE has no attribute specified.
4148 If the optional argument FRAME is given, report on face FACE in that frame.
4149 If FRAME is t, report on the defaults for face FACE (for new frames).
4150 If FRAME is omitted or nil, use the selected frame. */)
4152 Lisp_Object face
, frame
;
4159 frame
= selected_frame
;
4160 CHECK_LIVE_FRAME (frame
);
4164 lface
= lface_from_face_name (NULL
, face
, 1);
4166 lface
= lface_from_face_name (f
, face
, 1);
4168 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4169 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4172 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4176 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4178 doc
: /* Return an alist of frame-local faces defined on FRAME.
4179 For internal use only. */)
4183 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4184 return f
->face_alist
;
4188 /* Return a hash code for Lisp string STRING with case ignored. Used
4189 below in computing a hash value for a Lisp face. */
4191 static INLINE
unsigned
4192 hash_string_case_insensitive (string
)
4195 const unsigned char *s
;
4197 xassert (STRINGP (string
));
4198 for (s
= SDATA (string
); *s
; ++s
)
4199 hash
= (hash
<< 1) ^ tolower (*s
);
4204 /* Return a hash code for face attribute vector V. */
4206 static INLINE
unsigned
4210 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4211 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4212 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4213 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4214 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4215 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4216 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4217 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4221 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4222 considering charsets/registries). They do if they specify the same
4223 family, point size, weight, width, slant, and font. Both
4224 LFACE1 and LFACE2 must be fully-specified. */
4227 lface_same_font_attributes_p (lface1
, lface2
)
4228 Lisp_Object
*lface1
, *lface2
;
4230 xassert (lface_fully_specified_p (lface1
)
4231 && lface_fully_specified_p (lface2
));
4232 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4233 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4234 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4235 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4236 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4237 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4238 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4239 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4240 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4241 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4242 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4243 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4244 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4245 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4251 /***********************************************************************
4253 ***********************************************************************/
4255 /* Allocate and return a new realized face for Lisp face attribute
4258 static struct face
*
4259 make_realized_face (attr
)
4262 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4263 bzero (face
, sizeof *face
);
4264 face
->ascii_face
= face
;
4265 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4270 /* Free realized face FACE, including its X resources. FACE may
4274 free_realized_face (f
, face
)
4280 #ifdef HAVE_WINDOW_SYSTEM
4281 if (FRAME_WINDOW_P (f
))
4283 /* Free fontset of FACE if it is ASCII face. */
4284 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4285 free_face_fontset (f
, face
);
4290 font_done_for_face (f
, face
);
4291 x_free_gc (f
, face
->gc
);
4296 free_face_colors (f
, face
);
4297 x_destroy_bitmap (f
, face
->stipple
);
4299 #endif /* HAVE_WINDOW_SYSTEM */
4306 /* Prepare face FACE for subsequent display on frame F. This
4307 allocated GCs if they haven't been allocated yet or have been freed
4308 by clearing the face cache. */
4311 prepare_face_for_display (f
, face
)
4315 #ifdef HAVE_WINDOW_SYSTEM
4316 xassert (FRAME_WINDOW_P (f
));
4321 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4323 xgcv
.foreground
= face
->foreground
;
4324 xgcv
.background
= face
->background
;
4325 #ifdef HAVE_X_WINDOWS
4326 xgcv
.graphics_exposures
= False
;
4330 #ifdef HAVE_X_WINDOWS
4333 xgcv
.fill_style
= FillOpaqueStippled
;
4334 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4335 mask
|= GCFillStyle
| GCStipple
;
4338 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4340 font_prepare_for_face (f
, face
);
4343 #endif /* HAVE_WINDOW_SYSTEM */
4347 /* Returns the `distance' between the colors X and Y. */
4350 color_distance (x
, y
)
4353 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4354 Quoting from that paper:
4356 This formula has results that are very close to L*u*v* (with the
4357 modified lightness curve) and, more importantly, it is a more even
4358 algorithm: it does not have a range of colours where it suddenly
4359 gives far from optimal results.
4361 See <http://www.compuphase.com/cmetric.htm> for more info. */
4363 long r
= (x
->red
- y
->red
) >> 8;
4364 long g
= (x
->green
- y
->green
) >> 8;
4365 long b
= (x
->blue
- y
->blue
) >> 8;
4366 long r_mean
= (x
->red
+ y
->red
) >> 9;
4369 (((512 + r_mean
) * r
* r
) >> 8)
4371 + (((767 - r_mean
) * b
* b
) >> 8);
4375 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4376 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4377 COLOR1 and COLOR2 may be either strings containing the color name,
4378 or lists of the form (RED GREEN BLUE).
4379 If FRAME is unspecified or nil, the current frame is used. */)
4380 (color1
, color2
, frame
)
4381 Lisp_Object color1
, color2
, frame
;
4384 XColor cdef1
, cdef2
;
4387 frame
= selected_frame
;
4388 CHECK_LIVE_FRAME (frame
);
4391 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4392 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4393 signal_error ("Invalid color", color1
);
4394 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4395 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4396 signal_error ("Invalid color", color2
);
4398 return make_number (color_distance (&cdef1
, &cdef2
));
4402 /***********************************************************************
4404 ***********************************************************************/
4406 /* Return a new face cache for frame F. */
4408 static struct face_cache
*
4412 struct face_cache
*c
;
4415 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4416 bzero (c
, sizeof *c
);
4417 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4418 c
->buckets
= (struct face
**) xmalloc (size
);
4419 bzero (c
->buckets
, size
);
4421 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4423 c
->menu_face_changed_p
= menu_face_changed_default
;
4428 /* Clear out all graphics contexts for all realized faces, except for
4429 the basic faces. This should be done from time to time just to avoid
4430 keeping too many graphics contexts that are no longer needed. */
4434 struct face_cache
*c
;
4436 if (c
&& FRAME_WINDOW_P (c
->f
))
4438 #ifdef HAVE_WINDOW_SYSTEM
4440 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4442 struct face
*face
= c
->faces_by_id
[i
];
4443 if (face
&& face
->gc
)
4447 font_done_for_face (c
->f
, face
);
4448 x_free_gc (c
->f
, face
->gc
);
4453 #endif /* HAVE_WINDOW_SYSTEM */
4458 /* Free all realized faces in face cache C, including basic faces.
4459 C may be null. If faces are freed, make sure the frame's current
4460 matrix is marked invalid, so that a display caused by an expose
4461 event doesn't try to use faces we destroyed. */
4464 free_realized_faces (c
)
4465 struct face_cache
*c
;
4470 struct frame
*f
= c
->f
;
4472 /* We must block input here because we can't process X events
4473 safely while only some faces are freed, or when the frame's
4474 current matrix still references freed faces. */
4477 for (i
= 0; i
< c
->used
; ++i
)
4479 free_realized_face (f
, c
->faces_by_id
[i
]);
4480 c
->faces_by_id
[i
] = NULL
;
4484 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4485 bzero (c
->buckets
, size
);
4487 /* Must do a thorough redisplay the next time. Mark current
4488 matrices as invalid because they will reference faces freed
4489 above. This function is also called when a frame is
4490 destroyed. In this case, the root window of F is nil. */
4491 if (WINDOWP (f
->root_window
))
4493 clear_current_matrices (f
);
4494 ++windows_or_buffers_changed
;
4502 /* Free all realized faces that are using FONTSET on frame F. */
4505 free_realized_faces_for_fontset (f
, fontset
)
4509 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4513 /* We must block input here because we can't process X events safely
4514 while only some faces are freed, or when the frame's current
4515 matrix still references freed faces. */
4518 for (i
= 0; i
< cache
->used
; i
++)
4520 face
= cache
->faces_by_id
[i
];
4522 && face
->fontset
== fontset
)
4524 uncache_face (cache
, face
);
4525 free_realized_face (f
, face
);
4529 /* Must do a thorough redisplay the next time. Mark current
4530 matrices as invalid because they will reference faces freed
4531 above. This function is also called when a frame is destroyed.
4532 In this case, the root window of F is nil. */
4533 if (WINDOWP (f
->root_window
))
4535 clear_current_matrices (f
);
4536 ++windows_or_buffers_changed
;
4543 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4544 This is done after attributes of a named face have been changed,
4545 because we can't tell which realized faces depend on that face. */
4548 free_all_realized_faces (frame
)
4554 FOR_EACH_FRAME (rest
, frame
)
4555 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4558 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4562 /* Free face cache C and faces in it, including their X resources. */
4566 struct face_cache
*c
;
4570 free_realized_faces (c
);
4572 xfree (c
->faces_by_id
);
4578 /* Cache realized face FACE in face cache C. HASH is the hash value
4579 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4580 FACE), insert the new face to the beginning of the collision list
4581 of the face hash table of C. Otherwise, add the new face to the
4582 end of the collision list. This way, lookup_face can quickly find
4583 that a requested face is not cached. */
4586 cache_face (c
, face
, hash
)
4587 struct face_cache
*c
;
4591 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4595 if (face
->ascii_face
!= face
)
4597 struct face
*last
= c
->buckets
[i
];
4608 c
->buckets
[i
] = face
;
4609 face
->prev
= face
->next
= NULL
;
4615 face
->next
= c
->buckets
[i
];
4617 face
->next
->prev
= face
;
4618 c
->buckets
[i
] = face
;
4621 /* Find a free slot in C->faces_by_id and use the index of the free
4622 slot as FACE->id. */
4623 for (i
= 0; i
< c
->used
; ++i
)
4624 if (c
->faces_by_id
[i
] == NULL
)
4628 /* Maybe enlarge C->faces_by_id. */
4631 if (c
->used
== c
->size
)
4634 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4635 if (new_size
== c
->size
)
4636 abort (); /* Alternatives? ++kfs */
4637 sz
= new_size
* sizeof *c
->faces_by_id
;
4638 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4645 /* Check that FACE got a unique id. */
4650 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4651 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4657 #endif /* GLYPH_DEBUG */
4659 c
->faces_by_id
[i
] = face
;
4663 /* Remove face FACE from cache C. */
4666 uncache_face (c
, face
)
4667 struct face_cache
*c
;
4670 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4673 face
->prev
->next
= face
->next
;
4675 c
->buckets
[i
] = face
->next
;
4678 face
->next
->prev
= face
->prev
;
4680 c
->faces_by_id
[face
->id
] = NULL
;
4681 if (face
->id
== c
->used
)
4686 /* Look up a realized face with face attributes ATTR in the face cache
4687 of frame F. The face will be used to display ASCII characters.
4688 Value is the ID of the face found. If no suitable face is found,
4689 realize a new one. */
4692 lookup_face (f
, attr
)
4696 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4701 xassert (cache
!= NULL
);
4702 check_lface_attrs (attr
);
4704 /* Look up ATTR in the face cache. */
4705 hash
= lface_hash (attr
);
4706 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4708 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4710 if (face
->ascii_face
!= face
)
4712 /* There's no more ASCII face. */
4716 if (face
->hash
== hash
4717 && lface_equal_p (face
->lface
, attr
))
4721 /* If not found, realize a new face. */
4723 face
= realize_face (cache
, attr
, -1);
4726 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4727 #endif /* GLYPH_DEBUG */
4732 #ifdef HAVE_WINDOW_SYSTEM
4733 /* Look up a realized face that has the same attributes as BASE_FACE
4734 except for the font in the face cache of frame F. If FONT-OBJECT
4735 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4736 the face has no font. Value is the ID of the face found. If no
4737 suitable face is found, realize a new one. */
4740 face_for_font (f
, font_object
, base_face
)
4742 Lisp_Object font_object
;
4743 struct face
*base_face
;
4745 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4750 xassert (cache
!= NULL
);
4751 base_face
= base_face
->ascii_face
;
4752 hash
= lface_hash (base_face
->lface
);
4753 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4755 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4757 if (face
->ascii_face
== face
)
4759 if (face
->ascii_face
== base_face
4760 && face
->font
== (NILP (font_object
) ? NULL
4761 : XFONT_OBJECT (font_object
))
4762 && lface_equal_p (face
->lface
, base_face
->lface
))
4766 /* If not found, realize a new face. */
4767 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4770 #endif /* HAVE_WINDOW_SYSTEM */
4772 /* Return the face id of the realized face for named face SYMBOL on
4773 frame F suitable for displaying ASCII characters. Value is -1 if
4774 the face couldn't be determined, which might happen if the default
4775 face isn't realized and cannot be realized. */
4778 lookup_named_face (f
, symbol
, signal_p
)
4783 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4784 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4785 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4787 if (default_face
== NULL
)
4789 if (!realize_basic_faces (f
))
4791 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4792 if (default_face
== NULL
)
4793 abort (); /* realize_basic_faces must have set it up */
4796 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4799 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4800 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4802 return lookup_face (f
, attrs
);
4806 /* Return the display face-id of the basic face who's canonical face-id
4807 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4808 basic face has bee remapped via Vface_remapping_alist. This function is
4809 conservative: if something goes wrong, it will simply return FACE_ID
4810 rather than signal an error. */
4813 lookup_basic_face (f
, face_id
)
4817 Lisp_Object name
, mapping
;
4818 int remapped_face_id
;
4820 if (NILP (Vface_remapping_alist
))
4821 return face_id
; /* Nothing to do. */
4825 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4826 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4827 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4828 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4829 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4830 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4831 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4832 case BORDER_FACE_ID
: name
= Qborder
; break;
4833 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4834 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4835 case MENU_FACE_ID
: name
= Qmenu
; break;
4838 abort (); /* the caller is supposed to pass us a basic face id */
4841 /* Do a quick scan through Vface_remapping_alist, and return immediately
4842 if there is no remapping for face NAME. This is just an optimization
4843 for the very common no-remapping case. */
4844 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4846 return face_id
; /* Give up. */
4848 /* If there is a remapping entry, lookup the face using NAME, which will
4849 handle the remapping too. */
4850 remapped_face_id
= lookup_named_face (f
, name
, 0);
4851 if (remapped_face_id
< 0)
4852 return face_id
; /* Give up. */
4854 return remapped_face_id
;
4858 /* Return the ID of the realized ASCII face of Lisp face with ID
4859 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4862 ascii_face_of_lisp_face (f
, lface_id
)
4868 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4870 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4871 face_id
= lookup_named_face (f
, face_name
, 1);
4880 /* Return a face for charset ASCII that is like the face with id
4881 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4882 STEPS < 0 means larger. Value is the id of the face. */
4885 smaller_face (f
, face_id
, steps
)
4889 #ifdef HAVE_WINDOW_SYSTEM
4891 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4892 int pt
, last_pt
, last_height
;
4895 struct face
*new_face
;
4897 /* If not called for an X frame, just return the original face. */
4898 if (FRAME_TERMCAP_P (f
))
4901 /* Try in increments of 1/2 pt. */
4902 delta
= steps
< 0 ? 5 : -5;
4903 steps
= eabs (steps
);
4905 face
= FACE_FROM_ID (f
, face_id
);
4906 bcopy (face
->lface
, attrs
, sizeof attrs
);
4907 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4908 new_face_id
= face_id
;
4909 last_height
= FONT_HEIGHT (face
->font
);
4913 /* Give up if we cannot find a font within 10pt. */
4914 && eabs (last_pt
- pt
) < 100)
4916 /* Look up a face for a slightly smaller/larger font. */
4918 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4919 new_face_id
= lookup_face (f
, attrs
);
4920 new_face
= FACE_FROM_ID (f
, new_face_id
);
4922 /* If height changes, count that as one step. */
4923 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4924 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4927 last_height
= FONT_HEIGHT (new_face
->font
);
4934 #else /* not HAVE_WINDOW_SYSTEM */
4938 #endif /* not HAVE_WINDOW_SYSTEM */
4942 /* Return a face for charset ASCII that is like the face with id
4943 FACE_ID on frame F, but has height HEIGHT. */
4946 face_with_height (f
, face_id
, height
)
4951 #ifdef HAVE_WINDOW_SYSTEM
4953 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4955 if (FRAME_TERMCAP_P (f
)
4959 face
= FACE_FROM_ID (f
, face_id
);
4960 bcopy (face
->lface
, attrs
, sizeof attrs
);
4961 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4962 face_id
= lookup_face (f
, attrs
);
4963 #endif /* HAVE_WINDOW_SYSTEM */
4969 /* Return the face id of the realized face for named face SYMBOL on
4970 frame F suitable for displaying ASCII characters, and use
4971 attributes of the face FACE_ID for attributes that aren't
4972 completely specified by SYMBOL. This is like lookup_named_face,
4973 except that the default attributes come from FACE_ID, not from the
4974 default face. FACE_ID is assumed to be already realized. */
4977 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
4983 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4984 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4985 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4990 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4993 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4994 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4995 return lookup_face (f
, attrs
);
4998 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4999 Sface_attributes_as_vector
, 1, 1, 0,
5000 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5005 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5007 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5014 /***********************************************************************
5015 Face capability testing
5016 ***********************************************************************/
5019 /* If the distance (as returned by color_distance) between two colors is
5020 less than this, then they are considered the same, for determining
5021 whether a color is supported or not. The range of values is 0-65535. */
5023 #define TTY_SAME_COLOR_THRESHOLD 10000
5025 #ifdef HAVE_WINDOW_SYSTEM
5027 /* Return non-zero if all the face attributes in ATTRS are supported
5028 on the window-system frame F.
5030 The definition of `supported' is somewhat heuristic, but basically means
5031 that a face containing all the attributes in ATTRS, when merged with the
5032 default face for display, can be represented in a way that's
5034 \(1) different in appearance than the default face, and
5035 \(2) `close in spirit' to what the attributes specify, if not exact. */
5038 x_supports_face_attributes_p (f
, attrs
, def_face
)
5041 struct face
*def_face
;
5043 Lisp_Object
*def_attrs
= def_face
->lface
;
5045 /* Check that other specified attributes are different that the default
5047 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5048 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5049 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5050 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5051 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5052 def_attrs
[LFACE_INVERSE_INDEX
]))
5053 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5054 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5055 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5056 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5057 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5058 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5059 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5060 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5061 def_attrs
[LFACE_STIPPLE_INDEX
]))
5062 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5063 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5064 def_attrs
[LFACE_OVERLINE_INDEX
]))
5065 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5066 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5067 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5068 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5069 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5070 def_attrs
[LFACE_BOX_INDEX
])))
5073 /* Check font-related attributes, as those are the most commonly
5074 "unsupported" on a window-system (because of missing fonts). */
5075 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5076 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5077 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5078 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5079 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5080 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
5084 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5087 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5089 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5091 face_id
= lookup_face (f
, merged_attrs
);
5092 face
= FACE_FROM_ID (f
, face_id
);
5095 error ("Cannot make face");
5097 /* If the font is the same, or no font is found, then not
5099 if (face
->font
== def_face
->font
5102 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
5103 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
5107 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
5108 || face
->font
->driver
->case_sensitive
)
5110 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
5111 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
5112 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
5113 s2
, make_number (0), Qnil
, Qt
), Qt
))
5119 /* Everything checks out, this face is supported. */
5123 #endif /* HAVE_WINDOW_SYSTEM */
5125 /* Return non-zero if all the face attributes in ATTRS are supported
5128 The definition of `supported' is somewhat heuristic, but basically means
5129 that a face containing all the attributes in ATTRS, when merged
5130 with the default face for display, can be represented in a way that's
5132 \(1) different in appearance than the default face, and
5133 \(2) `close in spirit' to what the attributes specify, if not exact.
5135 Point (2) implies that a `:weight black' attribute will be satisfied
5136 by any terminal that can display bold, and a `:foreground "yellow"' as
5137 long as the terminal can display a yellowish color, but `:slant italic'
5138 will _not_ be satisfied by the tty display code's automatic
5139 substitution of a `dim' face for italic. */
5142 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5145 struct face
*def_face
;
5148 Lisp_Object val
, fg
, bg
;
5149 XColor fg_tty_color
, fg_std_color
;
5150 XColor bg_tty_color
, bg_std_color
;
5151 unsigned test_caps
= 0;
5152 Lisp_Object
*def_attrs
= def_face
->lface
;
5155 /* First check some easy-to-check stuff; ttys support none of the
5156 following attributes, so we can just return false if any are requested
5157 (even if `nominal' values are specified, we should still return false,
5158 as that will be the same value that the default face uses). We
5159 consider :slant unsupportable on ttys, even though the face code
5160 actually `fakes' them using a dim attribute if possible. This is
5161 because the faked result is too different from what the face
5163 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5164 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5165 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5166 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5167 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5168 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5169 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5170 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5171 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5175 /* Test for terminal `capabilities' (non-color character attributes). */
5177 /* font weight (bold/dim) */
5178 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5181 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
5185 if (def_weight
> 100)
5186 return 0; /* same as default */
5187 test_caps
= TTY_CAP_BOLD
;
5189 else if (weight
< 100)
5191 if (def_weight
< 100)
5192 return 0; /* same as default */
5193 test_caps
= TTY_CAP_DIM
;
5195 else if (def_weight
== 100)
5196 return 0; /* same as default */
5200 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5201 if (!UNSPECIFIEDP (val
))
5204 return 0; /* ttys can't use colored underlines */
5205 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5206 return 0; /* same as default */
5208 test_caps
|= TTY_CAP_UNDERLINE
;
5212 val
= attrs
[LFACE_INVERSE_INDEX
];
5213 if (!UNSPECIFIEDP (val
))
5215 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
5216 return 0; /* same as default */
5218 test_caps
|= TTY_CAP_INVERSE
;
5222 /* Color testing. */
5224 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5225 we use them when calling `tty_capable_p' below, even if the face
5226 specifies no colors. */
5227 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5228 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5230 /* Check if foreground color is close enough. */
5231 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5234 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5236 if (face_attr_equal_p (fg
, def_fg
))
5237 return 0; /* same as default */
5238 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5239 return 0; /* not a valid color */
5240 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5241 > TTY_SAME_COLOR_THRESHOLD
)
5242 return 0; /* displayed color is too different */
5244 /* Make sure the color is really different than the default. */
5246 XColor def_fg_color
;
5247 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5248 && (color_distance (&fg_tty_color
, &def_fg_color
)
5249 <= TTY_SAME_COLOR_THRESHOLD
))
5254 /* Check if background color is close enough. */
5255 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5258 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5260 if (face_attr_equal_p (bg
, def_bg
))
5261 return 0; /* same as default */
5262 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5263 return 0; /* not a valid color */
5264 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5265 > TTY_SAME_COLOR_THRESHOLD
)
5266 return 0; /* displayed color is too different */
5268 /* Make sure the color is really different than the default. */
5270 XColor def_bg_color
;
5271 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5272 && (color_distance (&bg_tty_color
, &def_bg_color
)
5273 <= TTY_SAME_COLOR_THRESHOLD
))
5278 /* If both foreground and background are requested, see if the
5279 distance between them is OK. We just check to see if the distance
5280 between the tty's foreground and background is close enough to the
5281 distance between the standard foreground and background. */
5282 if (STRINGP (fg
) && STRINGP (bg
))
5285 = (color_distance (&fg_std_color
, &bg_std_color
)
5286 - color_distance (&fg_tty_color
, &bg_tty_color
));
5287 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5288 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5293 /* See if the capabilities we selected above are supported, with the
5295 if (test_caps
!= 0 &&
5296 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5300 /* Hmmm, everything checks out, this terminal must support this face. */
5305 DEFUN ("display-supports-face-attributes-p",
5306 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5308 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5309 The optional argument DISPLAY can be a display name, a frame, or
5310 nil (meaning the selected frame's display).
5312 The definition of `supported' is somewhat heuristic, but basically means
5313 that a face containing all the attributes in ATTRIBUTES, when merged
5314 with the default face for display, can be represented in a way that's
5316 \(1) different in appearance than the default face, and
5317 \(2) `close in spirit' to what the attributes specify, if not exact.
5319 Point (2) implies that a `:weight black' attribute will be satisfied by
5320 any display that can display bold, and a `:foreground \"yellow\"' as long
5321 as it can display a yellowish color, but `:slant italic' will _not_ be
5322 satisfied by the tty display code's automatic substitution of a `dim'
5323 face for italic. */)
5324 (attributes
, display
)
5325 Lisp_Object attributes
, display
;
5327 int supports
= 0, i
;
5330 struct face
*def_face
;
5331 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5333 if (noninteractive
|| !initialized
)
5334 /* We may not be able to access low-level face information in batch
5335 mode, or before being dumped, and this function is not going to
5336 be very useful in those cases anyway, so just give up. */
5340 frame
= selected_frame
;
5341 else if (FRAMEP (display
))
5345 /* Find any frame on DISPLAY. */
5346 Lisp_Object fl_tail
;
5349 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5351 frame
= XCAR (fl_tail
);
5352 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5353 XFRAME (frame
)->param_alist
)),
5359 CHECK_LIVE_FRAME (frame
);
5362 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5363 attrs
[i
] = Qunspecified
;
5364 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5366 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5367 if (def_face
== NULL
)
5369 if (! realize_basic_faces (f
))
5370 error ("Cannot realize default face");
5371 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5372 if (def_face
== NULL
)
5373 abort (); /* realize_basic_faces must have set it up */
5376 /* Dispatch to the appropriate handler. */
5377 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5378 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5379 #ifdef HAVE_WINDOW_SYSTEM
5381 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5384 return supports
? Qt
: Qnil
;
5388 /***********************************************************************
5390 ***********************************************************************/
5392 DEFUN ("internal-set-font-selection-order",
5393 Finternal_set_font_selection_order
,
5394 Sinternal_set_font_selection_order
, 1, 1, 0,
5395 doc
: /* Set font selection order for face font selection to ORDER.
5396 ORDER must be a list of length 4 containing the symbols `:width',
5397 `:height', `:weight', and `:slant'. Face attributes appearing
5398 first in ORDER are matched first, e.g. if `:height' appears before
5399 `:weight' in ORDER, font selection first tries to find a font with
5400 a suitable height, and then tries to match the font weight.
5407 int indices
[DIM (font_sort_order
)];
5410 bzero (indices
, sizeof indices
);
5414 CONSP (list
) && i
< DIM (indices
);
5415 list
= XCDR (list
), ++i
)
5417 Lisp_Object attr
= XCAR (list
);
5420 if (EQ (attr
, QCwidth
))
5422 else if (EQ (attr
, QCheight
))
5423 xlfd
= XLFD_POINT_SIZE
;
5424 else if (EQ (attr
, QCweight
))
5426 else if (EQ (attr
, QCslant
))
5431 if (indices
[i
] != 0)
5436 if (!NILP (list
) || i
!= DIM (indices
))
5437 signal_error ("Invalid font sort order", order
);
5438 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5439 if (indices
[i
] == 0)
5440 signal_error ("Invalid font sort order", order
);
5442 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5444 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5445 free_all_realized_faces (Qnil
);
5448 font_update_sort_order (font_sort_order
);
5454 DEFUN ("internal-set-alternative-font-family-alist",
5455 Finternal_set_alternative_font_family_alist
,
5456 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5457 doc
: /* Define alternative font families to try in face font selection.
5458 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5459 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5460 be found. Value is ALIST. */)
5464 Lisp_Object entry
, tail
, tail2
;
5467 alist
= Fcopy_sequence (alist
);
5468 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5470 entry
= XCAR (tail
);
5472 entry
= Fcopy_sequence (entry
);
5473 XSETCAR (tail
, entry
);
5474 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5475 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5478 Vface_alternative_font_family_alist
= alist
;
5479 free_all_realized_faces (Qnil
);
5484 DEFUN ("internal-set-alternative-font-registry-alist",
5485 Finternal_set_alternative_font_registry_alist
,
5486 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5487 doc
: /* Define alternative font registries to try in face font selection.
5488 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5489 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5490 be found. Value is ALIST. */)
5494 Lisp_Object entry
, tail
, tail2
;
5497 alist
= Fcopy_sequence (alist
);
5498 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5500 entry
= XCAR (tail
);
5502 entry
= Fcopy_sequence (entry
);
5503 XSETCAR (tail
, entry
);
5504 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5505 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5507 Vface_alternative_font_registry_alist
= alist
;
5508 free_all_realized_faces (Qnil
);
5513 #ifdef HAVE_WINDOW_SYSTEM
5515 /* Ignore the difference of font point size less than this value. */
5517 #define FONT_POINT_SIZE_QUANTUM 5
5519 /* Return the fontset id of the base fontset name or alias name given
5520 by the fontset attribute of ATTRS. Value is -1 if the fontset
5521 attribute of ATTRS doesn't name a fontset. */
5524 face_fontset (attrs
)
5529 name
= attrs
[LFACE_FONTSET_INDEX
];
5530 if (!STRINGP (name
))
5532 return fs_query_fontset (name
, 0);
5535 #endif /* HAVE_WINDOW_SYSTEM */
5539 /***********************************************************************
5541 ***********************************************************************/
5543 /* Realize basic faces on frame F. Value is zero if frame parameters
5544 of F don't contain enough information needed to realize the default
5548 realize_basic_faces (f
)
5552 int count
= SPECPDL_INDEX ();
5554 /* Block input here so that we won't be surprised by an X expose
5555 event, for instance, without having the faces set up. */
5557 specbind (Qscalable_fonts_allowed
, Qt
);
5559 if (realize_default_face (f
))
5561 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5562 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5563 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5564 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5565 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5566 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5567 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5568 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5569 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5570 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5571 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5573 /* Reflect changes in the `menu' face in menu bars. */
5574 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5576 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5577 #ifdef USE_X_TOOLKIT
5578 if (FRAME_WINDOW_P (f
))
5579 x_update_menu_appearance (f
);
5586 unbind_to (count
, Qnil
);
5592 /* Realize the default face on frame F. If the face is not fully
5593 specified, make it fully-specified. Attributes of the default face
5594 that are not explicitly specified are taken from frame parameters. */
5597 realize_default_face (f
)
5600 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5602 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5605 /* If the `default' face is not yet known, create it. */
5606 lface
= lface_from_face_name (f
, Qdefault
, 0);
5610 XSETFRAME (frame
, f
);
5611 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5614 #ifdef HAVE_WINDOW_SYSTEM
5615 if (FRAME_WINDOW_P (f
))
5617 Lisp_Object font_object
;
5619 XSETFONT (font_object
, FRAME_FONT (f
));
5620 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5621 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5622 f
->default_face_done_p
= 1;
5624 #endif /* HAVE_WINDOW_SYSTEM */
5626 if (!FRAME_WINDOW_P (f
))
5628 LFACE_FAMILY (lface
) = build_string ("default");
5629 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5630 LFACE_SWIDTH (lface
) = Qnormal
;
5631 LFACE_HEIGHT (lface
) = make_number (1);
5632 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5633 LFACE_WEIGHT (lface
) = Qnormal
;
5634 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5635 LFACE_SLANT (lface
) = Qnormal
;
5636 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5637 LFACE_FONTSET (lface
) = Qnil
;
5640 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5641 LFACE_UNDERLINE (lface
) = Qnil
;
5643 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5644 LFACE_OVERLINE (lface
) = Qnil
;
5646 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5647 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5649 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5650 LFACE_BOX (lface
) = Qnil
;
5652 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5653 LFACE_INVERSE (lface
) = Qnil
;
5655 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5657 /* This function is called so early that colors are not yet
5658 set in the frame parameter list. */
5659 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5661 if (CONSP (color
) && STRINGP (XCDR (color
)))
5662 LFACE_FOREGROUND (lface
) = XCDR (color
);
5663 else if (FRAME_WINDOW_P (f
))
5665 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5666 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5671 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5673 /* This function is called so early that colors are not yet
5674 set in the frame parameter list. */
5675 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5676 if (CONSP (color
) && STRINGP (XCDR (color
)))
5677 LFACE_BACKGROUND (lface
) = XCDR (color
);
5678 else if (FRAME_WINDOW_P (f
))
5680 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5681 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5686 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5687 LFACE_STIPPLE (lface
) = Qnil
;
5689 /* Realize the face; it must be fully-specified now. */
5690 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5691 check_lface (lface
);
5692 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5693 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5695 #ifdef HAVE_WINDOW_SYSTEM
5696 #ifdef HAVE_X_WINDOWS
5697 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5699 /* This can happen when making a frame on a display that does
5700 not support the default font. */
5704 /* Otherwise, the font specified for the frame was not
5705 acceptable as a font for the default face (perhaps because
5706 auto-scaled fonts are rejected), so we must adjust the frame
5708 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5710 #endif /* HAVE_X_WINDOWS */
5711 #endif /* HAVE_WINDOW_SYSTEM */
5716 /* Realize basic faces other than the default face in face cache C.
5717 SYMBOL is the face name, ID is the face id the realized face must
5718 have. The default face must have been realized already. */
5721 realize_named_face (f
, symbol
, id
)
5726 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5727 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5728 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5729 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5730 struct face
*new_face
;
5732 /* The default face must exist and be fully specified. */
5733 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5734 check_lface_attrs (attrs
);
5735 xassert (lface_fully_specified_p (attrs
));
5737 /* If SYMBOL isn't know as a face, create it. */
5741 XSETFRAME (frame
, f
);
5742 lface
= Finternal_make_lisp_face (symbol
, frame
);
5745 /* Merge SYMBOL's face with the default face. */
5746 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5747 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5749 /* Realize the face. */
5750 new_face
= realize_face (c
, attrs
, id
);
5754 /* Realize the fully-specified face with attributes ATTRS in face
5755 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5756 non-negative, it is an ID of face to remove before caching the new
5757 face. Value is a pointer to the newly created realized face. */
5759 static struct face
*
5760 realize_face (cache
, attrs
, former_face_id
)
5761 struct face_cache
*cache
;
5767 /* LFACE must be fully specified. */
5768 xassert (cache
!= NULL
);
5769 check_lface_attrs (attrs
);
5771 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5773 /* Remove the former face. */
5774 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5775 uncache_face (cache
, former_face
);
5776 free_realized_face (cache
->f
, former_face
);
5779 if (FRAME_WINDOW_P (cache
->f
))
5780 face
= realize_x_face (cache
, attrs
);
5781 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5782 face
= realize_tty_face (cache
, attrs
);
5783 else if (FRAME_INITIAL_P (cache
->f
))
5785 /* Create a dummy face. */
5786 face
= make_realized_face (attrs
);
5791 /* Insert the new face. */
5792 cache_face (cache
, face
, lface_hash (attrs
));
5797 #ifdef HAVE_WINDOW_SYSTEM
5798 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5799 same attributes as BASE_FACE except for the font on frame F.
5800 FONT-OBJECT may be nil, in which case, realized a face of
5803 static struct face
*
5804 realize_non_ascii_face (f
, font_object
, base_face
)
5806 Lisp_Object font_object
;
5807 struct face
*base_face
;
5809 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5812 face
= (struct face
*) xmalloc (sizeof *face
);
5817 = (! NILP (font_object
)
5818 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5819 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5821 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5822 face
->colors_copied_bitwise_p
= 1;
5823 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5826 cache_face (cache
, face
, face
->hash
);
5830 #endif /* HAVE_WINDOW_SYSTEM */
5833 /* Realize the fully-specified face with attributes ATTRS in face
5834 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5835 the new face doesn't share font with the default face, a fontname
5836 is allocated from the heap and set in `font_name' of the new face,
5837 but it is not yet loaded here. Value is a pointer to the newly
5838 created realized face. */
5840 static struct face
*
5841 realize_x_face (cache
, attrs
)
5842 struct face_cache
*cache
;
5845 struct face
*face
= NULL
;
5846 #ifdef HAVE_WINDOW_SYSTEM
5847 struct face
*default_face
;
5849 Lisp_Object stipple
, overline
, strike_through
, box
;
5851 xassert (FRAME_WINDOW_P (cache
->f
));
5853 /* Allocate a new realized face. */
5854 face
= make_realized_face (attrs
);
5855 face
->ascii_face
= face
;
5859 /* Determine the font to use. Most of the time, the font will be
5860 the same as the font of the default face, so try that first. */
5861 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5863 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5865 face
->font
= default_face
->font
;
5867 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5871 /* If the face attribute ATTRS specifies a fontset, use it as
5872 the base of a new realized fontset. Otherwise, use the same
5873 base fontset as of the default face. The base determines
5874 registry and encoding of a font. It may also determine
5875 foundry and family. The other fields of font name pattern
5876 are constructed from ATTRS. */
5877 int fontset
= face_fontset (attrs
);
5879 /* If we are realizing the default face, ATTRS should specify a
5880 fontset. In other words, if FONTSET is -1, we are not
5881 realizing the default face, thus the default face should have
5882 already been realized. */
5884 fontset
= default_face
->fontset
;
5887 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5888 attrs
[LFACE_FONT_INDEX
]
5889 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5890 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5892 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5893 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5903 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5904 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5905 face
->overstrike
= 1;
5907 /* Load colors, and set remaining attributes. */
5909 load_face_colors (f
, face
, attrs
);
5912 box
= attrs
[LFACE_BOX_INDEX
];
5915 /* A simple box of line width 1 drawn in color given by
5917 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5919 face
->box
= FACE_SIMPLE_BOX
;
5920 face
->box_line_width
= 1;
5922 else if (INTEGERP (box
))
5924 /* Simple box of specified line width in foreground color of the
5926 xassert (XINT (box
) != 0);
5927 face
->box
= FACE_SIMPLE_BOX
;
5928 face
->box_line_width
= XINT (box
);
5929 face
->box_color
= face
->foreground
;
5930 face
->box_color_defaulted_p
= 1;
5932 else if (CONSP (box
))
5934 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5935 being one of `raised' or `sunken'. */
5936 face
->box
= FACE_SIMPLE_BOX
;
5937 face
->box_color
= face
->foreground
;
5938 face
->box_color_defaulted_p
= 1;
5939 face
->box_line_width
= 1;
5943 Lisp_Object keyword
, value
;
5945 keyword
= XCAR (box
);
5953 if (EQ (keyword
, QCline_width
))
5955 if (INTEGERP (value
) && XINT (value
) != 0)
5956 face
->box_line_width
= XINT (value
);
5958 else if (EQ (keyword
, QCcolor
))
5960 if (STRINGP (value
))
5962 face
->box_color
= load_color (f
, face
, value
,
5964 face
->use_box_color_for_shadows_p
= 1;
5967 else if (EQ (keyword
, QCstyle
))
5969 if (EQ (value
, Qreleased_button
))
5970 face
->box
= FACE_RAISED_BOX
;
5971 else if (EQ (value
, Qpressed_button
))
5972 face
->box
= FACE_SUNKEN_BOX
;
5977 /* Text underline, overline, strike-through. */
5979 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5981 /* Use default color (same as foreground color). */
5982 face
->underline_p
= 1;
5983 face
->underline_defaulted_p
= 1;
5984 face
->underline_color
= 0;
5986 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5988 /* Use specified color. */
5989 face
->underline_p
= 1;
5990 face
->underline_defaulted_p
= 0;
5991 face
->underline_color
5992 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5993 LFACE_UNDERLINE_INDEX
);
5995 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5997 face
->underline_p
= 0;
5998 face
->underline_defaulted_p
= 0;
5999 face
->underline_color
= 0;
6002 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6003 if (STRINGP (overline
))
6005 face
->overline_color
6006 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6007 LFACE_OVERLINE_INDEX
);
6008 face
->overline_p
= 1;
6010 else if (EQ (overline
, Qt
))
6012 face
->overline_color
= face
->foreground
;
6013 face
->overline_color_defaulted_p
= 1;
6014 face
->overline_p
= 1;
6017 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6018 if (STRINGP (strike_through
))
6020 face
->strike_through_color
6021 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6022 LFACE_STRIKE_THROUGH_INDEX
);
6023 face
->strike_through_p
= 1;
6025 else if (EQ (strike_through
, Qt
))
6027 face
->strike_through_color
= face
->foreground
;
6028 face
->strike_through_color_defaulted_p
= 1;
6029 face
->strike_through_p
= 1;
6032 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6033 if (!NILP (stipple
))
6034 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6035 #endif /* HAVE_WINDOW_SYSTEM */
6041 /* Map a specified color of face FACE on frame F to a tty color index.
6042 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6043 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6044 default foreground/background colors. */
6047 map_tty_color (f
, face
, idx
, defaulted
)
6050 enum lface_attribute_index idx
;
6053 Lisp_Object frame
, color
, def
;
6054 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6055 unsigned long default_pixel
, default_other_pixel
, pixel
;
6057 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6061 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6062 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6066 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6067 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6070 XSETFRAME (frame
, f
);
6071 color
= face
->lface
[idx
];
6075 && CONSP (Vtty_defined_color_alist
)
6076 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6079 /* Associations in tty-defined-color-alist are of the form
6080 (NAME INDEX R G B). We need the INDEX part. */
6081 pixel
= XINT (XCAR (XCDR (def
)));
6084 if (pixel
== default_pixel
&& STRINGP (color
))
6086 pixel
= load_color (f
, face
, color
, idx
);
6089 /* If the foreground of the default face is the default color,
6090 use the foreground color defined by the frame. */
6091 if (FRAME_MSDOS_P (f
))
6093 if (pixel
== default_pixel
6094 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6097 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6099 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6100 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6103 else if (pixel
== default_other_pixel
)
6106 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6108 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6109 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6117 face
->foreground
= pixel
;
6119 face
->background
= pixel
;
6123 /* Realize the fully-specified face with attributes ATTRS in face
6124 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
6125 Value is a pointer to the newly created realized face. */
6127 static struct face
*
6128 realize_tty_face (cache
, attrs
)
6129 struct face_cache
*cache
;
6134 int face_colors_defaulted
= 0;
6135 struct frame
*f
= cache
->f
;
6137 /* Frame must be a termcap frame. */
6138 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6140 /* Allocate a new realized face. */
6141 face
= make_realized_face (attrs
);
6143 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6146 /* Map face attributes to TTY appearances. We map slant to
6147 dimmed text because we want italic text to appear differently
6148 and because dimmed text is probably used infrequently. */
6149 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
6150 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
6152 face
->tty_bold_p
= 1;
6153 if (weight
< 100 || slant
!= 100)
6154 face
->tty_dim_p
= 1;
6155 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6156 face
->tty_underline_p
= 1;
6157 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6158 face
->tty_reverse_p
= 1;
6160 /* Map color names to color indices. */
6161 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6162 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6164 /* Swap colors if face is inverse-video. If the colors are taken
6165 from the frame colors, they are already inverted, since the
6166 frame-creation function calls x-handle-reverse-video. */
6167 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6169 unsigned long tem
= face
->foreground
;
6170 face
->foreground
= face
->background
;
6171 face
->background
= tem
;
6174 if (tty_suppress_bold_inverse_default_colors_p
6176 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6177 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6178 face
->tty_bold_p
= 0;
6184 DEFUN ("tty-suppress-bold-inverse-default-colors",
6185 Ftty_suppress_bold_inverse_default_colors
,
6186 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6187 doc
: /* Suppress/allow boldness of faces with inverse default colors.
6188 SUPPRESS non-nil means suppress it.
6189 This affects bold faces on TTYs whose foreground is the default background
6190 color of the display and whose background is the default foreground color.
6191 For such faces, the bold face attribute is ignored if this variable
6194 Lisp_Object suppress
;
6196 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6197 ++face_change_count
;
6203 /***********************************************************************
6205 ***********************************************************************/
6207 /* Return the ID of the face to use to display character CH with face
6208 property PROP on frame F in current_buffer. */
6211 compute_char_face (f
, ch
, prop
)
6218 if (NILP (current_buffer
->enable_multibyte_characters
))
6223 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6224 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6228 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6229 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6230 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6231 merge_face_ref (f
, prop
, attrs
, 1, 0);
6232 face_id
= lookup_face (f
, attrs
);
6238 /* Return the face ID associated with buffer position POS for
6239 displaying ASCII characters. Return in *ENDPTR the position at
6240 which a different face is needed, as far as text properties and
6241 overlays are concerned. W is a window displaying current_buffer.
6243 REGION_BEG, REGION_END delimit the region, so it can be
6246 LIMIT is a position not to scan beyond. That is to limit the time
6247 this function can take.
6249 If MOUSE is non-zero, use the character's mouse-face, not its face.
6251 The face returned is suitable for displaying ASCII characters. */
6254 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6255 endptr
, limit
, mouse
)
6258 EMACS_INT region_beg
, region_end
;
6263 struct frame
*f
= XFRAME (w
->frame
);
6264 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6265 Lisp_Object prop
, position
;
6267 Lisp_Object
*overlay_vec
;
6270 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6271 Lisp_Object limit1
, end
;
6272 struct face
*default_face
;
6274 /* W must display the current buffer. We could write this function
6275 to use the frame and buffer of W, but right now it doesn't. */
6276 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6278 XSETFRAME (frame
, f
);
6279 XSETFASTINT (position
, pos
);
6282 if (pos
< region_beg
&& region_beg
< endpos
)
6283 endpos
= region_beg
;
6285 /* Get the `face' or `mouse_face' text property at POS, and
6286 determine the next position at which the property changes. */
6287 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6288 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6289 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6291 endpos
= XINT (end
);
6293 /* Look at properties from overlays. */
6295 EMACS_INT next_overlay
;
6297 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6298 if (next_overlay
< endpos
)
6299 endpos
= next_overlay
;
6305 /* Perhaps remap BASE_FACE_ID to a user-specified alternative. */
6306 if (NILP (Vface_remapping_alist
))
6307 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6309 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6311 /* Optimize common cases where we can use the default face. */
6314 && !(pos
>= region_beg
&& pos
< region_end
))
6315 return default_face
->id
;
6317 /* Begin with attributes from the default face. */
6318 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6320 /* Merge in attributes specified via text properties. */
6322 merge_face_ref (f
, prop
, attrs
, 1, 0);
6324 /* Now merge the overlay data. */
6325 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6326 for (i
= 0; i
< noverlays
; i
++)
6331 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6333 merge_face_ref (f
, prop
, attrs
, 1, 0);
6335 oend
= OVERLAY_END (overlay_vec
[i
]);
6336 oendpos
= OVERLAY_POSITION (oend
);
6337 if (oendpos
< endpos
)
6341 /* If in the region, merge in the region face. */
6342 if (pos
>= region_beg
&& pos
< region_end
)
6344 merge_named_face (f
, Qregion
, attrs
, 0);
6346 if (region_end
< endpos
)
6347 endpos
= region_end
;
6352 /* Look up a realized face with the given face attributes,
6353 or realize a new one for ASCII characters. */
6354 return lookup_face (f
, attrs
);
6357 /* Return the face ID at buffer position POS for displaying ASCII
6358 characters associated with overlay strings for overlay OVERLAY.
6360 Like face_at_buffer_position except for OVERLAY. Currently it
6361 simply disregards the `face' properties of all overlays. */
6364 face_for_overlay_string (w
, pos
, region_beg
, region_end
,
6365 endptr
, limit
, mouse
, overlay
)
6368 EMACS_INT region_beg
, region_end
;
6372 Lisp_Object overlay
;
6374 struct frame
*f
= XFRAME (w
->frame
);
6375 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6376 Lisp_Object prop
, position
;
6379 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6380 Lisp_Object limit1
, end
;
6381 struct face
*default_face
;
6383 /* W must display the current buffer. We could write this function
6384 to use the frame and buffer of W, but right now it doesn't. */
6385 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6387 XSETFRAME (frame
, f
);
6388 XSETFASTINT (position
, pos
);
6391 if (pos
< region_beg
&& region_beg
< endpos
)
6392 endpos
= region_beg
;
6394 /* Get the `face' or `mouse_face' text property at POS, and
6395 determine the next position at which the property changes. */
6396 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6397 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6398 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6400 endpos
= XINT (end
);
6404 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6406 /* Optimize common cases where we can use the default face. */
6408 && !(pos
>= region_beg
&& pos
< region_end
))
6409 return DEFAULT_FACE_ID
;
6411 /* Begin with attributes from the default face. */
6412 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6414 /* Merge in attributes specified via text properties. */
6416 merge_face_ref (f
, prop
, attrs
, 1, 0);
6418 /* If in the region, merge in the region face. */
6419 if (pos
>= region_beg
&& pos
< region_end
)
6421 merge_named_face (f
, Qregion
, attrs
, 0);
6423 if (region_end
< endpos
)
6424 endpos
= region_end
;
6429 /* Look up a realized face with the given face attributes,
6430 or realize a new one for ASCII characters. */
6431 return lookup_face (f
, attrs
);
6435 /* Compute the face at character position POS in Lisp string STRING on
6436 window W, for ASCII characters.
6438 If STRING is an overlay string, it comes from position BUFPOS in
6439 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6440 not an overlay string. W must display the current buffer.
6441 REGION_BEG and REGION_END give the start and end positions of the
6442 region; both are -1 if no region is visible.
6444 BASE_FACE_ID is the id of a face to merge with. For strings coming
6445 from overlays or the `display' property it is the face at BUFPOS.
6447 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6449 Set *ENDPTR to the next position where to check for faces in
6450 STRING; -1 if the face is constant from POS to the end of the
6453 Value is the id of the face to use. The face returned is suitable
6454 for displaying ASCII characters. */
6457 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6458 region_end
, endptr
, base_face_id
, mouse_p
)
6461 EMACS_INT pos
, bufpos
;
6462 EMACS_INT region_beg
, region_end
;
6464 enum face_id base_face_id
;
6467 Lisp_Object prop
, position
, end
, limit
;
6468 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6469 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6470 struct face
*base_face
;
6471 int multibyte_p
= STRING_MULTIBYTE (string
);
6472 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6474 /* Get the value of the face property at the current position within
6475 STRING. Value is nil if there is no face property. */
6476 XSETFASTINT (position
, pos
);
6477 prop
= Fget_text_property (position
, prop_name
, string
);
6479 /* Get the next position at which to check for faces. Value of end
6480 is nil if face is constant all the way to the end of the string.
6481 Otherwise it is a string position where to check faces next.
6482 Limit is the maximum position up to which to check for property
6483 changes in Fnext_single_property_change. Strings are usually
6484 short, so set the limit to the end of the string. */
6485 XSETFASTINT (limit
, SCHARS (string
));
6486 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6488 *endptr
= XFASTINT (end
);
6492 base_face
= FACE_FROM_ID (f
, base_face_id
);
6493 xassert (base_face
);
6495 /* Optimize the default case that there is no face property and we
6496 are not in the region. */
6498 && (base_face_id
!= DEFAULT_FACE_ID
6499 /* BUFPOS <= 0 means STRING is not an overlay string, so
6500 that the region doesn't have to be taken into account. */
6502 || bufpos
< region_beg
6503 || bufpos
>= region_end
)
6505 /* We can't realize faces for different charsets differently
6506 if we don't have fonts, so we can stop here if not working
6507 on a window-system frame. */
6508 || !FRAME_WINDOW_P (f
)
6509 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6510 return base_face
->id
;
6512 /* Begin with attributes from the base face. */
6513 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6515 /* Merge in attributes specified via text properties. */
6517 merge_face_ref (f
, prop
, attrs
, 1, 0);
6519 /* If in the region, merge in the region face. */
6521 && bufpos
>= region_beg
6522 && bufpos
< region_end
)
6523 merge_named_face (f
, Qregion
, attrs
, 0);
6525 /* Look up a realized face with the given face attributes,
6526 or realize a new one for ASCII characters. */
6527 return lookup_face (f
, attrs
);
6531 /* Merge a face into a realized face.
6533 F is frame where faces are (to be) realized.
6535 FACE_NAME is named face to merge.
6537 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6539 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6541 BASE_FACE_ID is realized face to merge into.
6547 merge_faces (f
, face_name
, face_id
, base_face_id
)
6549 Lisp_Object face_name
;
6550 int face_id
, base_face_id
;
6552 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6553 struct face
*base_face
;
6555 base_face
= FACE_FROM_ID (f
, base_face_id
);
6557 return base_face_id
;
6559 if (EQ (face_name
, Qt
))
6561 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6562 return base_face_id
;
6563 face_name
= lface_id_to_name
[face_id
];
6564 /* When called during make-frame, lookup_derived_face may fail
6565 if the faces are uninitialized. Don't signal an error. */
6566 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6567 return (face_id
>= 0 ? face_id
: base_face_id
);
6570 /* Begin with attributes from the base face. */
6571 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6573 if (!NILP (face_name
))
6575 if (!merge_named_face (f
, face_name
, attrs
, 0))
6576 return base_face_id
;
6582 return base_face_id
;
6583 face
= FACE_FROM_ID (f
, face_id
);
6585 return base_face_id
;
6586 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6589 /* Look up a realized face with the given face attributes,
6590 or realize a new one for ASCII characters. */
6591 return lookup_face (f
, attrs
);
6596 #ifndef HAVE_X_WINDOWS
6597 DEFUN ("x-load-color-file", Fx_load_color_file
,
6598 Sx_load_color_file
, 1, 1, 0,
6599 doc
: /* Create an alist of color entries from an external file.
6601 The file should define one named RGB color per line like so:
6603 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6605 Lisp_Object filename
;
6608 Lisp_Object cmap
= Qnil
;
6609 Lisp_Object abspath
;
6611 CHECK_STRING (filename
);
6612 abspath
= Fexpand_file_name (filename
, Qnil
);
6614 fp
= fopen (SDATA (filename
), "rt");
6618 int red
, green
, blue
;
6623 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6624 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6626 char *name
= buf
+ num
;
6627 num
= strlen (name
) - 1;
6628 if (name
[num
] == '\n')
6630 cmap
= Fcons (Fcons (build_string (name
),
6632 make_number (RGB (red
, green
, blue
))),
6634 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6649 /***********************************************************************
6651 ***********************************************************************/
6655 /* Print the contents of the realized face FACE to stderr. */
6658 dump_realized_face (face
)
6661 fprintf (stderr
, "ID: %d\n", face
->id
);
6662 #ifdef HAVE_X_WINDOWS
6663 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6665 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6667 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6668 fprintf (stderr
, "background: 0x%lx (%s)\n",
6670 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6672 fprintf (stderr
, "font_name: %s (%s)\n",
6673 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6674 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6675 #ifdef HAVE_X_WINDOWS
6676 fprintf (stderr
, "font = %p\n", face
->font
);
6678 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6679 fprintf (stderr
, "underline: %d (%s)\n",
6681 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6682 fprintf (stderr
, "hash: %d\n", face
->hash
);
6686 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6694 fprintf (stderr
, "font selection order: ");
6695 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6696 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6697 fprintf (stderr
, "\n");
6699 fprintf (stderr
, "alternative fonts: ");
6700 debug_print (Vface_alternative_font_family_alist
);
6701 fprintf (stderr
, "\n");
6703 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6704 Fdump_face (make_number (i
));
6710 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6712 error ("Not a valid face");
6713 dump_realized_face (face
);
6720 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6721 0, 0, 0, doc
: /* */)
6724 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6725 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6726 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6730 #endif /* GLYPH_DEBUG != 0 */
6734 /***********************************************************************
6736 ***********************************************************************/
6741 Qface
= intern ("face");
6743 Qface_no_inherit
= intern ("face-no-inherit");
6744 staticpro (&Qface_no_inherit
);
6745 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6746 staticpro (&Qbitmap_spec_p
);
6747 Qframe_set_background_mode
= intern ("frame-set-background-mode");
6748 staticpro (&Qframe_set_background_mode
);
6750 /* Lisp face attribute keywords. */
6751 QCfamily
= intern (":family");
6752 staticpro (&QCfamily
);
6753 QCheight
= intern (":height");
6754 staticpro (&QCheight
);
6755 QCweight
= intern (":weight");
6756 staticpro (&QCweight
);
6757 QCslant
= intern (":slant");
6758 staticpro (&QCslant
);
6759 QCunderline
= intern (":underline");
6760 staticpro (&QCunderline
);
6761 QCinverse_video
= intern (":inverse-video");
6762 staticpro (&QCinverse_video
);
6763 QCreverse_video
= intern (":reverse-video");
6764 staticpro (&QCreverse_video
);
6765 QCforeground
= intern (":foreground");
6766 staticpro (&QCforeground
);
6767 QCbackground
= intern (":background");
6768 staticpro (&QCbackground
);
6769 QCstipple
= intern (":stipple");
6770 staticpro (&QCstipple
);
6771 QCwidth
= intern (":width");
6772 staticpro (&QCwidth
);
6773 QCfont
= intern (":font");
6774 staticpro (&QCfont
);
6775 QCfontset
= intern (":fontset");
6776 staticpro (&QCfontset
);
6777 QCbold
= intern (":bold");
6778 staticpro (&QCbold
);
6779 QCitalic
= intern (":italic");
6780 staticpro (&QCitalic
);
6781 QCoverline
= intern (":overline");
6782 staticpro (&QCoverline
);
6783 QCstrike_through
= intern (":strike-through");
6784 staticpro (&QCstrike_through
);
6785 QCbox
= intern (":box");
6787 QCinherit
= intern (":inherit");
6788 staticpro (&QCinherit
);
6790 /* Symbols used for Lisp face attribute values. */
6791 QCcolor
= intern (":color");
6792 staticpro (&QCcolor
);
6793 QCline_width
= intern (":line-width");
6794 staticpro (&QCline_width
);
6795 QCstyle
= intern (":style");
6796 staticpro (&QCstyle
);
6797 Qreleased_button
= intern ("released-button");
6798 staticpro (&Qreleased_button
);
6799 Qpressed_button
= intern ("pressed-button");
6800 staticpro (&Qpressed_button
);
6801 Qnormal
= intern ("normal");
6802 staticpro (&Qnormal
);
6803 Qultra_light
= intern ("ultra-light");
6804 staticpro (&Qultra_light
);
6805 Qextra_light
= intern ("extra-light");
6806 staticpro (&Qextra_light
);
6807 Qlight
= intern ("light");
6808 staticpro (&Qlight
);
6809 Qsemi_light
= intern ("semi-light");
6810 staticpro (&Qsemi_light
);
6811 Qsemi_bold
= intern ("semi-bold");
6812 staticpro (&Qsemi_bold
);
6813 Qbold
= intern ("bold");
6815 Qextra_bold
= intern ("extra-bold");
6816 staticpro (&Qextra_bold
);
6817 Qultra_bold
= intern ("ultra-bold");
6818 staticpro (&Qultra_bold
);
6819 Qoblique
= intern ("oblique");
6820 staticpro (&Qoblique
);
6821 Qitalic
= intern ("italic");
6822 staticpro (&Qitalic
);
6823 Qreverse_oblique
= intern ("reverse-oblique");
6824 staticpro (&Qreverse_oblique
);
6825 Qreverse_italic
= intern ("reverse-italic");
6826 staticpro (&Qreverse_italic
);
6827 Qultra_condensed
= intern ("ultra-condensed");
6828 staticpro (&Qultra_condensed
);
6829 Qextra_condensed
= intern ("extra-condensed");
6830 staticpro (&Qextra_condensed
);
6831 Qcondensed
= intern ("condensed");
6832 staticpro (&Qcondensed
);
6833 Qsemi_condensed
= intern ("semi-condensed");
6834 staticpro (&Qsemi_condensed
);
6835 Qsemi_expanded
= intern ("semi-expanded");
6836 staticpro (&Qsemi_expanded
);
6837 Qexpanded
= intern ("expanded");
6838 staticpro (&Qexpanded
);
6839 Qextra_expanded
= intern ("extra-expanded");
6840 staticpro (&Qextra_expanded
);
6841 Qultra_expanded
= intern ("ultra-expanded");
6842 staticpro (&Qultra_expanded
);
6843 Qbackground_color
= intern ("background-color");
6844 staticpro (&Qbackground_color
);
6845 Qforeground_color
= intern ("foreground-color");
6846 staticpro (&Qforeground_color
);
6847 Qunspecified
= intern ("unspecified");
6848 staticpro (&Qunspecified
);
6849 Qignore_defface
= intern (":ignore-defface");
6850 staticpro (&Qignore_defface
);
6852 Qface_alias
= intern ("face-alias");
6853 staticpro (&Qface_alias
);
6854 Qdefault
= intern ("default");
6855 staticpro (&Qdefault
);
6856 Qtool_bar
= intern ("tool-bar");
6857 staticpro (&Qtool_bar
);
6858 Qregion
= intern ("region");
6859 staticpro (&Qregion
);
6860 Qfringe
= intern ("fringe");
6861 staticpro (&Qfringe
);
6862 Qheader_line
= intern ("header-line");
6863 staticpro (&Qheader_line
);
6864 Qscroll_bar
= intern ("scroll-bar");
6865 staticpro (&Qscroll_bar
);
6866 Qmenu
= intern ("menu");
6868 Qcursor
= intern ("cursor");
6869 staticpro (&Qcursor
);
6870 Qborder
= intern ("border");
6871 staticpro (&Qborder
);
6872 Qmouse
= intern ("mouse");
6873 staticpro (&Qmouse
);
6874 Qmode_line_inactive
= intern ("mode-line-inactive");
6875 staticpro (&Qmode_line_inactive
);
6876 Qvertical_border
= intern ("vertical-border");
6877 staticpro (&Qvertical_border
);
6878 Qtty_color_desc
= intern ("tty-color-desc");
6879 staticpro (&Qtty_color_desc
);
6880 Qtty_color_standard_values
= intern ("tty-color-standard-values");
6881 staticpro (&Qtty_color_standard_values
);
6882 Qtty_color_by_index
= intern ("tty-color-by-index");
6883 staticpro (&Qtty_color_by_index
);
6884 Qtty_color_alist
= intern ("tty-color-alist");
6885 staticpro (&Qtty_color_alist
);
6886 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
6887 staticpro (&Qscalable_fonts_allowed
);
6889 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6890 staticpro (&Vparam_value_alist
);
6891 Vface_alternative_font_family_alist
= Qnil
;
6892 staticpro (&Vface_alternative_font_family_alist
);
6893 Vface_alternative_font_registry_alist
= Qnil
;
6894 staticpro (&Vface_alternative_font_registry_alist
);
6896 defsubr (&Sinternal_make_lisp_face
);
6897 defsubr (&Sinternal_lisp_face_p
);
6898 defsubr (&Sinternal_set_lisp_face_attribute
);
6899 #ifdef HAVE_WINDOW_SYSTEM
6900 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6902 defsubr (&Scolor_gray_p
);
6903 defsubr (&Scolor_supported_p
);
6904 #ifndef HAVE_X_WINDOWS
6905 defsubr (&Sx_load_color_file
);
6907 defsubr (&Sface_attribute_relative_p
);
6908 defsubr (&Smerge_face_attribute
);
6909 defsubr (&Sinternal_get_lisp_face_attribute
);
6910 defsubr (&Sinternal_lisp_face_attribute_values
);
6911 defsubr (&Sinternal_lisp_face_equal_p
);
6912 defsubr (&Sinternal_lisp_face_empty_p
);
6913 defsubr (&Sinternal_copy_lisp_face
);
6914 defsubr (&Sinternal_merge_in_global_face
);
6915 defsubr (&Sface_font
);
6916 defsubr (&Sframe_face_alist
);
6917 defsubr (&Sdisplay_supports_face_attributes_p
);
6918 defsubr (&Scolor_distance
);
6919 defsubr (&Sinternal_set_font_selection_order
);
6920 defsubr (&Sinternal_set_alternative_font_family_alist
);
6921 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6922 defsubr (&Sface_attributes_as_vector
);
6924 defsubr (&Sdump_face
);
6925 defsubr (&Sshow_face_resources
);
6926 #endif /* GLYPH_DEBUG */
6927 defsubr (&Sclear_face_cache
);
6928 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6930 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6931 defsubr (&Sdump_colors
);
6934 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6935 doc
: /* *Limit for font matching.
6936 If an integer > 0, font matching functions won't load more than
6937 that number of fonts when searching for a matching font. */);
6938 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6940 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6941 doc
: /* List of global face definitions (for internal use only.) */);
6942 Vface_new_frame_defaults
= Qnil
;
6944 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6945 doc
: /* *Default stipple pattern used on monochrome displays.
6946 This stipple pattern is used on monochrome displays
6947 instead of shades of gray for a face background color.
6948 See `set-face-stipple' for possible values for this variable. */);
6949 Vface_default_stipple
= build_string ("gray3");
6951 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
6952 doc
: /* An alist of defined terminal colors and their RGB values. */);
6953 Vtty_defined_color_alist
= Qnil
;
6955 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6956 doc
: /* Allowed scalable fonts.
6957 A value of nil means don't allow any scalable fonts.
6958 A value of t means allow any scalable font.
6959 Otherwise, value must be a list of regular expressions. A font may be
6960 scaled if its name matches a regular expression in the list.
6961 Note that if value is nil, a scalable font might still be used, if no
6962 other font of the appropriate family and registry is available. */);
6963 Vscalable_fonts_allowed
= Qnil
;
6965 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
6966 doc
: /* List of ignored fonts.
6967 Each element is a regular expression that matches names of fonts to
6969 Vface_ignored_fonts
= Qnil
;
6971 DEFVAR_LISP ("face-remapping-alist", &Vface_remapping_alist
,
6972 doc
: /* Alist of face remappings.
6973 Each element is of the form:
6975 (FACE REPLACEMENT...),
6977 which causes display of the face FACE to use REPLACEMENT... instead.
6978 REPLACEMENT... is interpreted the same way the value of a `face' text
6979 property is: it may be (1) A face name, (2) A list of face names, (3) A
6980 property-list of face attribute/value pairs, or (4) A list of face names
6981 intermixed with lists containing face attribute/value pairs.
6983 Multiple entries in REPLACEMENT... are merged together to form the final
6984 result, with faces or attributes earlier in the list taking precedence
6985 over those that are later.
6987 Face-name remapping cycles are suppressed; recursive references use the
6988 underlying face instead of the remapped face. So a remapping of the form:
6990 (FACE EXTRA-FACE... FACE)
6994 (FACE (FACE-ATTR VAL ...) FACE)
6996 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6997 existing definition of FACE. Note that for the default face, this isn't
6998 necessary, as every face inherits from the default face.
7000 Making this variable buffer-local is a good way to allow buffer-specific
7001 face definitions. For instance, the mode my-mode could define a face
7002 `my-mode-default', and then in the mode setup function, do:
7004 (set (make-local-variable 'face-remapping-alist)
7005 '((default my-mode-default)))). */);
7006 Vface_remapping_alist
= Qnil
;
7008 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7009 doc
: /* Alist of fonts vs the rescaling factors.
7010 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7011 FONT-NAME-PATTERN is a regular expression matching a font name, and
7012 RESCALE-RATIO is a floating point number to specify how much larger
7013 \(or smaller) font we should use. For instance, if a face requests
7014 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7015 Vface_font_rescale_alist
= Qnil
;
7017 #ifdef HAVE_WINDOW_SYSTEM
7018 defsubr (&Sbitmap_spec_p
);
7019 defsubr (&Sx_list_fonts
);
7020 defsubr (&Sinternal_face_x_get_resource
);
7021 defsubr (&Sx_family_fonts
);
7022 defsubr (&Sx_font_family_list
);
7023 #endif /* HAVE_WINDOW_SYSTEM */
7026 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7027 (do not change this comment) */