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 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3222 /* Don't check for valid color names here because it depends
3223 on the frame (display) whether the color will be valid
3224 when the face is realized. */
3225 CHECK_STRING (value
);
3226 if (SCHARS (value
) == 0)
3227 signal_error ("Empty foreground color value", value
);
3229 old_value
= LFACE_FOREGROUND (lface
);
3230 LFACE_FOREGROUND (lface
) = value
;
3232 else if (EQ (attr
, QCbackground
))
3234 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3236 /* Don't check for valid color names here because it depends
3237 on the frame (display) whether the color will be valid
3238 when the face is realized. */
3239 CHECK_STRING (value
);
3240 if (SCHARS (value
) == 0)
3241 signal_error ("Empty background color value", value
);
3243 old_value
= LFACE_BACKGROUND (lface
);
3244 LFACE_BACKGROUND (lface
) = value
;
3246 else if (EQ (attr
, QCstipple
))
3248 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
3249 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3251 && NILP (Fbitmap_spec_p (value
)))
3252 signal_error ("Invalid stipple attribute", value
);
3253 old_value
= LFACE_STIPPLE (lface
);
3254 LFACE_STIPPLE (lface
) = value
;
3255 #endif /* HAVE_X_WINDOWS || HAVE_NS */
3257 else if (EQ (attr
, QCwidth
))
3259 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3261 CHECK_SYMBOL (value
);
3262 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3263 signal_error ("Invalid face width", value
);
3265 old_value
= LFACE_SWIDTH (lface
);
3266 LFACE_SWIDTH (lface
) = value
;
3267 prop_index
= FONT_WIDTH_INDEX
;
3269 else if (EQ (attr
, QCfont
))
3271 #ifdef HAVE_WINDOW_SYSTEM
3272 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3274 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3278 old_value
= LFACE_FONT (lface
);
3279 if (! FONTP (value
))
3281 if (STRINGP (value
))
3283 int fontset
= fs_query_fontset (value
, 0);
3286 value
= fontset_ascii (fontset
);
3287 value
= font_spec_from_name (value
);
3290 signal_error ("Invalid font or font-spec", value
);
3293 f
= XFRAME (selected_frame
);
3296 if (! FONT_OBJECT_P (value
))
3298 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3299 Lisp_Object font_object
;
3301 font_object
= font_load_for_lface (f
, attrs
, value
);
3302 if (NILP (font_object
))
3303 signal_error ("Font not available", value
);
3304 value
= font_object
;
3306 set_lface_from_font (f
, lface
, value
, 1);
3309 LFACE_FONT (lface
) = value
;
3311 #endif /* HAVE_WINDOW_SYSTEM */
3313 else if (EQ (attr
, QCfontset
))
3315 #ifdef HAVE_WINDOW_SYSTEM
3316 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3320 old_value
= LFACE_FONTSET (lface
);
3321 tmp
= Fquery_fontset (value
, Qnil
);
3323 signal_error ("Invalid fontset name", value
);
3324 LFACE_FONTSET (lface
) = value
= tmp
;
3326 #endif /* HAVE_WINDOW_SYSTEM */
3328 else if (EQ (attr
, QCinherit
))
3331 if (SYMBOLP (value
))
3334 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3335 if (!SYMBOLP (XCAR (tail
)))
3338 LFACE_INHERIT (lface
) = value
;
3340 signal_error ("Invalid face inheritance", value
);
3342 else if (EQ (attr
, QCbold
))
3344 old_value
= LFACE_WEIGHT (lface
);
3345 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3346 prop_index
= FONT_WEIGHT_INDEX
;
3348 else if (EQ (attr
, QCitalic
))
3351 old_value
= LFACE_SLANT (lface
);
3352 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3353 prop_index
= FONT_SLANT_INDEX
;
3356 signal_error ("Invalid face attribute name", attr
);
3359 /* If a font-related attribute other than QCfont and QCfontset is
3360 specified, and if the original QCfont attribute has a font
3361 (font-spec or font-object), set the corresponding property in
3362 the font to nil so that the font selector doesn't think that
3363 the attribute is mandatory. */
3364 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3366 /* Changing a named face means that all realized faces depending on
3367 that face are invalid. Since we cannot tell which realized faces
3368 depend on the face, make sure they are all removed. This is done
3369 by incrementing face_change_count. The next call to
3370 init_iterator will then free realized faces. */
3372 && NILP (Fget (face
, Qface_no_inherit
))
3373 && NILP (Fequal (old_value
, value
)))
3375 ++face_change_count
;
3376 ++windows_or_buffers_changed
;
3379 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3380 && NILP (Fequal (old_value
, value
)))
3386 if (EQ (face
, Qdefault
))
3388 #ifdef HAVE_WINDOW_SYSTEM
3389 /* Changed font-related attributes of the `default' face are
3390 reflected in changed `font' frame parameters. */
3392 && (prop_index
|| EQ (attr
, QCfont
))
3393 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3394 set_font_frame_param (frame
, lface
);
3396 #endif /* HAVE_WINDOW_SYSTEM */
3398 if (EQ (attr
, QCforeground
))
3399 param
= Qforeground_color
;
3400 else if (EQ (attr
, QCbackground
))
3401 param
= Qbackground_color
;
3403 #ifdef HAVE_WINDOW_SYSTEM
3405 else if (EQ (face
, Qscroll_bar
))
3407 /* Changing the colors of `scroll-bar' sets frame parameters
3408 `scroll-bar-foreground' and `scroll-bar-background'. */
3409 if (EQ (attr
, QCforeground
))
3410 param
= Qscroll_bar_foreground
;
3411 else if (EQ (attr
, QCbackground
))
3412 param
= Qscroll_bar_background
;
3414 #endif /* not WINDOWSNT */
3415 else if (EQ (face
, Qborder
))
3417 /* Changing background color of `border' sets frame parameter
3419 if (EQ (attr
, QCbackground
))
3420 param
= Qborder_color
;
3422 else if (EQ (face
, Qcursor
))
3424 /* Changing background color of `cursor' sets frame parameter
3426 if (EQ (attr
, QCbackground
))
3427 param
= Qcursor_color
;
3429 else if (EQ (face
, Qmouse
))
3431 /* Changing background color of `mouse' sets frame parameter
3433 if (EQ (attr
, QCbackground
))
3434 param
= Qmouse_color
;
3436 #endif /* HAVE_WINDOW_SYSTEM */
3437 else if (EQ (face
, Qmenu
))
3439 /* Indicate that we have to update the menu bar when
3440 realizing faces on FRAME. FRAME t change the
3441 default for new frames. We do this by setting
3442 setting the flag in new face caches */
3445 struct frame
*f
= XFRAME (frame
);
3446 if (FRAME_FACE_CACHE (f
) == NULL
)
3447 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3448 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3451 menu_face_changed_default
= 1;
3457 /* Update `default-frame-alist', which is used for new frames. */
3459 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3462 /* Update the current frame's parameters. */
3465 cons
= XCAR (Vparam_value_alist
);
3466 XSETCAR (cons
, param
);
3467 XSETCDR (cons
, value
);
3468 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3477 #ifdef HAVE_WINDOW_SYSTEM
3479 /* Set the `font' frame parameter of FRAME determined from the
3480 font-object set in `default' face attributes LFACE. */
3483 set_font_frame_param (frame
, lface
)
3484 Lisp_Object frame
, lface
;
3486 struct frame
*f
= XFRAME (frame
);
3489 if (FRAME_WINDOW_P (f
)
3490 /* Don't do anything if the font is `unspecified'. This can
3491 happen during frame creation. */
3492 && (font
= LFACE_FONT (lface
),
3493 ! UNSPECIFIEDP (font
)))
3495 if (FONT_SPEC_P (font
))
3497 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3500 LFACE_FONT (lface
) = font
;
3502 f
->default_face_done_p
= 0;
3503 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3508 /* Update the corresponding face when frame parameter PARAM on frame F
3509 has been assigned the value NEW_VALUE. */
3512 update_face_from_frame_parameter (f
, param
, new_value
)
3514 Lisp_Object param
, new_value
;
3516 Lisp_Object face
= Qnil
;
3519 /* If there are no faces yet, give up. This is the case when called
3520 from Fx_create_frame, and we do the necessary things later in
3521 face-set-after-frame-defaults. */
3522 if (NILP (f
->face_alist
))
3525 if (EQ (param
, Qforeground_color
))
3528 lface
= lface_from_face_name (f
, face
, 1);
3529 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3530 ? new_value
: Qunspecified
);
3531 realize_basic_faces (f
);
3533 else if (EQ (param
, Qbackground_color
))
3537 /* Changing the background color might change the background
3538 mode, so that we have to load new defface specs.
3539 Call frame-update-face-colors to do that. */
3540 XSETFRAME (frame
, f
);
3541 call1 (Qframe_set_background_mode
, frame
);
3544 lface
= lface_from_face_name (f
, face
, 1);
3545 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3546 ? new_value
: Qunspecified
);
3547 realize_basic_faces (f
);
3549 else if (EQ (param
, Qborder_color
))
3552 lface
= lface_from_face_name (f
, face
, 1);
3553 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3554 ? new_value
: Qunspecified
);
3556 else if (EQ (param
, Qcursor_color
))
3559 lface
= lface_from_face_name (f
, face
, 1);
3560 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3561 ? new_value
: Qunspecified
);
3563 else if (EQ (param
, Qmouse_color
))
3566 lface
= lface_from_face_name (f
, face
, 1);
3567 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3568 ? new_value
: Qunspecified
);
3571 /* Changing a named face means that all realized faces depending on
3572 that face are invalid. Since we cannot tell which realized faces
3573 depend on the face, make sure they are all removed. This is done
3574 by incrementing face_change_count. The next call to
3575 init_iterator will then free realized faces. */
3577 && NILP (Fget (face
, Qface_no_inherit
)))
3579 ++face_change_count
;
3580 ++windows_or_buffers_changed
;
3585 /* Get the value of X resource RESOURCE, class CLASS for the display
3586 of frame FRAME. This is here because ordinary `x-get-resource'
3587 doesn't take a frame argument. */
3589 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3590 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3591 (resource
, class, frame
)
3592 Lisp_Object resource
, class, frame
;
3594 Lisp_Object value
= Qnil
;
3595 CHECK_STRING (resource
);
3596 CHECK_STRING (class);
3597 CHECK_LIVE_FRAME (frame
);
3599 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3600 resource
, class, Qnil
, Qnil
);
3606 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3607 If VALUE is "on" or "true", return t. If VALUE is "off" or
3608 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3609 error; if SIGNAL_P is zero, return 0. */
3612 face_boolean_x_resource_value (value
, signal_p
)
3616 Lisp_Object result
= make_number (0);
3618 xassert (STRINGP (value
));
3620 if (xstrcasecmp (SDATA (value
), "on") == 0
3621 || xstrcasecmp (SDATA (value
), "true") == 0)
3623 else if (xstrcasecmp (SDATA (value
), "off") == 0
3624 || xstrcasecmp (SDATA (value
), "false") == 0)
3626 else if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3627 result
= Qunspecified
;
3629 signal_error ("Invalid face attribute value from X resource", value
);
3635 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3636 Finternal_set_lisp_face_attribute_from_resource
,
3637 Sinternal_set_lisp_face_attribute_from_resource
,
3638 3, 4, 0, doc
: /* */)
3639 (face
, attr
, value
, frame
)
3640 Lisp_Object face
, attr
, value
, frame
;
3642 CHECK_SYMBOL (face
);
3643 CHECK_SYMBOL (attr
);
3644 CHECK_STRING (value
);
3646 if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3647 value
= Qunspecified
;
3648 else if (EQ (attr
, QCheight
))
3650 value
= Fstring_to_number (value
, make_number (10));
3651 if (XINT (value
) <= 0)
3652 signal_error ("Invalid face height from X resource", value
);
3654 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3655 value
= face_boolean_x_resource_value (value
, 1);
3656 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3657 value
= intern (SDATA (value
));
3658 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3659 value
= face_boolean_x_resource_value (value
, 1);
3660 else if (EQ (attr
, QCunderline
)
3661 || EQ (attr
, QCoverline
)
3662 || EQ (attr
, QCstrike_through
))
3664 Lisp_Object boolean_value
;
3666 /* If the result of face_boolean_x_resource_value is t or nil,
3667 VALUE does NOT specify a color. */
3668 boolean_value
= face_boolean_x_resource_value (value
, 0);
3669 if (SYMBOLP (boolean_value
))
3670 value
= boolean_value
;
3672 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3673 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3675 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3678 #endif /* HAVE_WINDOW_SYSTEM */
3681 /***********************************************************************
3683 ***********************************************************************/
3685 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3687 /* Make menus on frame F appear as specified by the `menu' face. */
3690 x_update_menu_appearance (f
)
3693 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3697 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3701 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3702 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3703 const char *myname
= SDATA (Vx_resource_name
);
3706 const char *popup_path
= "popup_menu";
3708 const char *popup_path
= "menu.popup";
3711 if (STRINGP (LFACE_FOREGROUND (lface
)))
3713 sprintf (line
, "%s.%s*foreground: %s",
3715 SDATA (LFACE_FOREGROUND (lface
)));
3716 XrmPutLineResource (&rdb
, line
);
3717 sprintf (line
, "%s.pane.menubar*foreground: %s",
3718 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3719 XrmPutLineResource (&rdb
, line
);
3723 if (STRINGP (LFACE_BACKGROUND (lface
)))
3725 sprintf (line
, "%s.%s*background: %s",
3727 SDATA (LFACE_BACKGROUND (lface
)));
3728 XrmPutLineResource (&rdb
, line
);
3729 sprintf (line
, "%s.pane.menubar*background: %s",
3730 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3731 XrmPutLineResource (&rdb
, line
);
3736 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3737 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3738 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3739 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3740 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3741 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3743 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3745 const char *suffix
= "List";
3748 #if defined HAVE_X_I18N
3750 const char *suffix
= "Set";
3752 const char *suffix
= "";
3759 #if defined HAVE_X_I18N
3760 extern char *xic_create_fontsetname
3761 P_ ((char *base_fontname
, Bool motif
));
3762 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3764 char *fontsetname
= (char *) SDATA (xlfd
);
3766 sprintf (line
, "%s.pane.menubar*font%s: %s",
3767 myname
, suffix
, fontsetname
);
3768 XrmPutLineResource (&rdb
, line
);
3769 sprintf (line
, "%s.%s*font%s: %s",
3770 myname
, popup_path
, suffix
, fontsetname
);
3771 XrmPutLineResource (&rdb
, line
);
3773 if (fontsetname
!= (char *) SDATA (xlfd
))
3774 xfree (fontsetname
);
3778 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3779 free_frame_menubar (f
);
3783 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3786 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3787 Sface_attribute_relative_p
,
3789 doc
: /* Check whether a face attribute value is relative.
3790 Specifically, this function returns t if the attribute ATTRIBUTE
3791 with the value VALUE is relative.
3793 A relative value is one that doesn't entirely override whatever is
3794 inherited from another face. For most possible attributes,
3795 the only relative value that users see is `unspecified'.
3796 However, for :height, floating point values are also relative. */)
3798 Lisp_Object attribute
, value
;
3800 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3802 else if (EQ (attribute
, QCheight
))
3803 return INTEGERP (value
) ? Qnil
: Qt
;
3808 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3810 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3811 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3812 the result will be absolute, otherwise it will be relative. */)
3813 (attribute
, value1
, value2
)
3814 Lisp_Object attribute
, value1
, value2
;
3816 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3818 else if (EQ (attribute
, QCheight
))
3819 return merge_face_heights (value1
, value2
, value1
);
3825 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3826 Sinternal_get_lisp_face_attribute
,
3828 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3829 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3830 face attribute name, signal an error.
3831 If the optional argument FRAME is given, report on face SYMBOL in that
3832 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3833 frames). If FRAME is omitted or nil, use the selected frame. */)
3834 (symbol
, keyword
, frame
)
3835 Lisp_Object symbol
, keyword
, frame
;
3837 Lisp_Object lface
, value
= Qnil
;
3839 CHECK_SYMBOL (symbol
);
3840 CHECK_SYMBOL (keyword
);
3843 lface
= lface_from_face_name (NULL
, symbol
, 1);
3847 frame
= selected_frame
;
3848 CHECK_LIVE_FRAME (frame
);
3849 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3852 if (EQ (keyword
, QCfamily
))
3853 value
= LFACE_FAMILY (lface
);
3854 else if (EQ (keyword
, QCfoundry
))
3855 value
= LFACE_FOUNDRY (lface
);
3856 else if (EQ (keyword
, QCheight
))
3857 value
= LFACE_HEIGHT (lface
);
3858 else if (EQ (keyword
, QCweight
))
3859 value
= LFACE_WEIGHT (lface
);
3860 else if (EQ (keyword
, QCslant
))
3861 value
= LFACE_SLANT (lface
);
3862 else if (EQ (keyword
, QCunderline
))
3863 value
= LFACE_UNDERLINE (lface
);
3864 else if (EQ (keyword
, QCoverline
))
3865 value
= LFACE_OVERLINE (lface
);
3866 else if (EQ (keyword
, QCstrike_through
))
3867 value
= LFACE_STRIKE_THROUGH (lface
);
3868 else if (EQ (keyword
, QCbox
))
3869 value
= LFACE_BOX (lface
);
3870 else if (EQ (keyword
, QCinverse_video
)
3871 || EQ (keyword
, QCreverse_video
))
3872 value
= LFACE_INVERSE (lface
);
3873 else if (EQ (keyword
, QCforeground
))
3874 value
= LFACE_FOREGROUND (lface
);
3875 else if (EQ (keyword
, QCbackground
))
3876 value
= LFACE_BACKGROUND (lface
);
3877 else if (EQ (keyword
, QCstipple
))
3878 value
= LFACE_STIPPLE (lface
);
3879 else if (EQ (keyword
, QCwidth
))
3880 value
= LFACE_SWIDTH (lface
);
3881 else if (EQ (keyword
, QCinherit
))
3882 value
= LFACE_INHERIT (lface
);
3883 else if (EQ (keyword
, QCfont
))
3884 value
= LFACE_FONT (lface
);
3885 else if (EQ (keyword
, QCfontset
))
3886 value
= LFACE_FONTSET (lface
);
3888 signal_error ("Invalid face attribute name", keyword
);
3890 if (IGNORE_DEFFACE_P (value
))
3891 return Qunspecified
;
3897 DEFUN ("internal-lisp-face-attribute-values",
3898 Finternal_lisp_face_attribute_values
,
3899 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3900 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3901 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3905 Lisp_Object result
= Qnil
;
3907 CHECK_SYMBOL (attr
);
3909 if (EQ (attr
, QCunderline
))
3910 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3911 else if (EQ (attr
, QCoverline
))
3912 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3913 else if (EQ (attr
, QCstrike_through
))
3914 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3915 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3916 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3922 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3923 Sinternal_merge_in_global_face
, 2, 2, 0,
3924 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3925 Default face attributes override any local face attributes. */)
3927 Lisp_Object face
, frame
;
3930 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3931 struct frame
*f
= XFRAME (frame
);
3933 CHECK_LIVE_FRAME (frame
);
3934 global_lface
= lface_from_face_name (NULL
, face
, 1);
3935 local_lface
= lface_from_face_name (f
, face
, 0);
3936 if (NILP (local_lface
))
3937 local_lface
= Finternal_make_lisp_face (face
, frame
);
3939 /* Make every specified global attribute override the local one.
3940 BEWARE!! This is only used from `face-set-after-frame-default' where
3941 the local frame is defined from default specs in `face-defface-spec'
3942 and those should be overridden by global settings. Hence the strange
3943 "global before local" priority. */
3944 lvec
= XVECTOR (local_lface
)->contents
;
3945 gvec
= XVECTOR (global_lface
)->contents
;
3946 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3947 if (IGNORE_DEFFACE_P (gvec
[i
]))
3948 lvec
[i
] = Qunspecified
;
3949 else if (! UNSPECIFIEDP (gvec
[i
]))
3952 /* If the default face was changed, update the face cache and the
3953 `font' frame parameter. */
3954 if (EQ (face
, Qdefault
))
3956 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3957 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3958 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3960 /* This can be NULL (e.g., in batch mode). */
3963 /* Ensure that the face vector is fully specified by merging
3964 the previously-cached vector. */
3965 bcopy (oldface
->lface
, attrs
, sizeof attrs
);
3966 merge_face_vectors (f
, lvec
, attrs
, 0);
3967 bcopy (attrs
, lvec
, sizeof attrs
);
3968 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3970 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3971 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3972 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3973 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3974 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3975 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3976 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3979 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3980 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3990 /* The following function is implemented for compatibility with 20.2.
3991 The function is used in x-resolve-fonts when it is asked to
3992 return fonts with the same size as the font of a face. This is
3993 done in fontset.el. */
3995 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3996 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3997 The font name is, by default, for ASCII characters.
3998 If the optional argument FRAME is given, report on face FACE in that frame.
3999 If FRAME is t, report on the defaults for face FACE (for new frames).
4000 The font default for a face is either nil, or a list
4001 of the form (bold), (italic) or (bold italic).
4002 If FRAME is omitted or nil, use the selected frame. And, in this case,
4003 if the optional third argument CHARACTER is given,
4004 return the font name used for CHARACTER. */)
4005 (face
, frame
, character
)
4006 Lisp_Object face
, frame
, character
;
4010 Lisp_Object result
= Qnil
;
4011 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4013 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4014 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4015 result
= Fcons (Qbold
, result
);
4017 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4018 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4019 result
= Fcons (Qitalic
, result
);
4025 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4026 int face_id
= lookup_named_face (f
, face
, 1);
4027 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4031 #ifdef HAVE_WINDOW_SYSTEM
4032 if (FRAME_WINDOW_P (f
) && !NILP (character
))
4034 CHECK_CHARACTER (character
);
4035 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
4036 face
= FACE_FROM_ID (f
, face_id
);
4039 ? face
->font
->props
[FONT_NAME_INDEX
]
4041 #else /* !HAVE_WINDOW_SYSTEM */
4042 return build_string (FRAME_MSDOS_P (f
)
4044 : FRAME_W32_P (f
) ? "w32term"
4051 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4052 all attributes are `equal'. Tries to be fast because this function
4053 is called quite often. */
4056 face_attr_equal_p (v1
, v2
)
4059 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4060 and the other is specified. */
4061 if (XTYPE (v1
) != XTYPE (v2
))
4070 if (SBYTES (v1
) != SBYTES (v2
))
4073 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4080 return !NILP (Fequal (v1
, v2
));
4085 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4086 all attributes are `equal'. Tries to be fast because this function
4087 is called quite often. */
4090 lface_equal_p (v1
, v2
)
4091 Lisp_Object
*v1
, *v2
;
4095 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4096 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4102 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4103 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4104 doc
: /* True if FACE1 and FACE2 are equal.
4105 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4106 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4107 If FRAME is omitted or nil, use the selected frame. */)
4108 (face1
, face2
, frame
)
4109 Lisp_Object face1
, face2
, frame
;
4113 Lisp_Object lface1
, lface2
;
4118 /* Don't use check_x_frame here because this function is called
4119 before X frames exist. At that time, if FRAME is nil,
4120 selected_frame will be used which is the frame dumped with
4121 Emacs. That frame is not an X frame. */
4122 f
= frame_or_selected_frame (frame
, 2);
4124 lface1
= lface_from_face_name (f
, face1
, 1);
4125 lface2
= lface_from_face_name (f
, face2
, 1);
4126 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4127 XVECTOR (lface2
)->contents
);
4128 return equal_p
? Qt
: Qnil
;
4132 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4133 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4134 doc
: /* True if FACE has no attribute specified.
4135 If the optional argument FRAME is given, report on face FACE in that frame.
4136 If FRAME is t, report on the defaults for face FACE (for new frames).
4137 If FRAME is omitted or nil, use the selected frame. */)
4139 Lisp_Object face
, frame
;
4146 frame
= selected_frame
;
4147 CHECK_LIVE_FRAME (frame
);
4151 lface
= lface_from_face_name (NULL
, face
, 1);
4153 lface
= lface_from_face_name (f
, face
, 1);
4155 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4156 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4159 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4163 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4165 doc
: /* Return an alist of frame-local faces defined on FRAME.
4166 For internal use only. */)
4170 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4171 return f
->face_alist
;
4175 /* Return a hash code for Lisp string STRING with case ignored. Used
4176 below in computing a hash value for a Lisp face. */
4178 static INLINE
unsigned
4179 hash_string_case_insensitive (string
)
4182 const unsigned char *s
;
4184 xassert (STRINGP (string
));
4185 for (s
= SDATA (string
); *s
; ++s
)
4186 hash
= (hash
<< 1) ^ tolower (*s
);
4191 /* Return a hash code for face attribute vector V. */
4193 static INLINE
unsigned
4197 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4198 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4199 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4200 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4201 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4202 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4203 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4204 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4208 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4209 considering charsets/registries). They do if they specify the same
4210 family, point size, weight, width, slant, and font. Both
4211 LFACE1 and LFACE2 must be fully-specified. */
4214 lface_same_font_attributes_p (lface1
, lface2
)
4215 Lisp_Object
*lface1
, *lface2
;
4217 xassert (lface_fully_specified_p (lface1
)
4218 && lface_fully_specified_p (lface2
));
4219 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4220 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4221 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4222 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4223 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4224 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4225 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4226 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4227 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4228 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4229 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4230 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4231 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4232 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4238 /***********************************************************************
4240 ***********************************************************************/
4242 /* Allocate and return a new realized face for Lisp face attribute
4245 static struct face
*
4246 make_realized_face (attr
)
4249 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4250 bzero (face
, sizeof *face
);
4251 face
->ascii_face
= face
;
4252 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4257 /* Free realized face FACE, including its X resources. FACE may
4261 free_realized_face (f
, face
)
4267 #ifdef HAVE_WINDOW_SYSTEM
4268 if (FRAME_WINDOW_P (f
))
4270 /* Free fontset of FACE if it is ASCII face. */
4271 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4272 free_face_fontset (f
, face
);
4277 font_done_for_face (f
, face
);
4278 x_free_gc (f
, face
->gc
);
4283 free_face_colors (f
, face
);
4284 x_destroy_bitmap (f
, face
->stipple
);
4286 #endif /* HAVE_WINDOW_SYSTEM */
4293 /* Prepare face FACE for subsequent display on frame F. This
4294 allocated GCs if they haven't been allocated yet or have been freed
4295 by clearing the face cache. */
4298 prepare_face_for_display (f
, face
)
4302 #ifdef HAVE_WINDOW_SYSTEM
4303 xassert (FRAME_WINDOW_P (f
));
4308 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4310 xgcv
.foreground
= face
->foreground
;
4311 xgcv
.background
= face
->background
;
4312 #ifdef HAVE_X_WINDOWS
4313 xgcv
.graphics_exposures
= False
;
4317 #ifdef HAVE_X_WINDOWS
4320 xgcv
.fill_style
= FillOpaqueStippled
;
4321 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4322 mask
|= GCFillStyle
| GCStipple
;
4325 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4327 font_prepare_for_face (f
, face
);
4330 #endif /* HAVE_WINDOW_SYSTEM */
4334 /* Returns the `distance' between the colors X and Y. */
4337 color_distance (x
, y
)
4340 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4341 Quoting from that paper:
4343 This formula has results that are very close to L*u*v* (with the
4344 modified lightness curve) and, more importantly, it is a more even
4345 algorithm: it does not have a range of colours where it suddenly
4346 gives far from optimal results.
4348 See <http://www.compuphase.com/cmetric.htm> for more info. */
4350 long r
= (x
->red
- y
->red
) >> 8;
4351 long g
= (x
->green
- y
->green
) >> 8;
4352 long b
= (x
->blue
- y
->blue
) >> 8;
4353 long r_mean
= (x
->red
+ y
->red
) >> 9;
4356 (((512 + r_mean
) * r
* r
) >> 8)
4358 + (((767 - r_mean
) * b
* b
) >> 8);
4362 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4363 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4364 COLOR1 and COLOR2 may be either strings containing the color name,
4365 or lists of the form (RED GREEN BLUE).
4366 If FRAME is unspecified or nil, the current frame is used. */)
4367 (color1
, color2
, frame
)
4368 Lisp_Object color1
, color2
, frame
;
4371 XColor cdef1
, cdef2
;
4374 frame
= selected_frame
;
4375 CHECK_LIVE_FRAME (frame
);
4378 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4379 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4380 signal_error ("Invalid color", color1
);
4381 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4382 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4383 signal_error ("Invalid color", color2
);
4385 return make_number (color_distance (&cdef1
, &cdef2
));
4389 /***********************************************************************
4391 ***********************************************************************/
4393 /* Return a new face cache for frame F. */
4395 static struct face_cache
*
4399 struct face_cache
*c
;
4402 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4403 bzero (c
, sizeof *c
);
4404 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4405 c
->buckets
= (struct face
**) xmalloc (size
);
4406 bzero (c
->buckets
, size
);
4408 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4410 c
->menu_face_changed_p
= menu_face_changed_default
;
4415 /* Clear out all graphics contexts for all realized faces, except for
4416 the basic faces. This should be done from time to time just to avoid
4417 keeping too many graphics contexts that are no longer needed. */
4421 struct face_cache
*c
;
4423 if (c
&& FRAME_WINDOW_P (c
->f
))
4425 #ifdef HAVE_WINDOW_SYSTEM
4427 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4429 struct face
*face
= c
->faces_by_id
[i
];
4430 if (face
&& face
->gc
)
4434 font_done_for_face (c
->f
, face
);
4435 x_free_gc (c
->f
, face
->gc
);
4440 #endif /* HAVE_WINDOW_SYSTEM */
4445 /* Free all realized faces in face cache C, including basic faces.
4446 C may be null. If faces are freed, make sure the frame's current
4447 matrix is marked invalid, so that a display caused by an expose
4448 event doesn't try to use faces we destroyed. */
4451 free_realized_faces (c
)
4452 struct face_cache
*c
;
4457 struct frame
*f
= c
->f
;
4459 /* We must block input here because we can't process X events
4460 safely while only some faces are freed, or when the frame's
4461 current matrix still references freed faces. */
4464 for (i
= 0; i
< c
->used
; ++i
)
4466 free_realized_face (f
, c
->faces_by_id
[i
]);
4467 c
->faces_by_id
[i
] = NULL
;
4471 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4472 bzero (c
->buckets
, size
);
4474 /* Must do a thorough redisplay the next time. Mark current
4475 matrices as invalid because they will reference faces freed
4476 above. This function is also called when a frame is
4477 destroyed. In this case, the root window of F is nil. */
4478 if (WINDOWP (f
->root_window
))
4480 clear_current_matrices (f
);
4481 ++windows_or_buffers_changed
;
4489 /* Free all realized faces that are using FONTSET on frame F. */
4492 free_realized_faces_for_fontset (f
, fontset
)
4496 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4500 /* We must block input here because we can't process X events safely
4501 while only some faces are freed, or when the frame's current
4502 matrix still references freed faces. */
4505 for (i
= 0; i
< cache
->used
; i
++)
4507 face
= cache
->faces_by_id
[i
];
4509 && face
->fontset
== fontset
)
4511 uncache_face (cache
, face
);
4512 free_realized_face (f
, face
);
4516 /* Must do a thorough redisplay the next time. Mark current
4517 matrices as invalid because they will reference faces freed
4518 above. This function is also called when a frame is destroyed.
4519 In this case, the root window of F is nil. */
4520 if (WINDOWP (f
->root_window
))
4522 clear_current_matrices (f
);
4523 ++windows_or_buffers_changed
;
4530 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4531 This is done after attributes of a named face have been changed,
4532 because we can't tell which realized faces depend on that face. */
4535 free_all_realized_faces (frame
)
4541 FOR_EACH_FRAME (rest
, frame
)
4542 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4545 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4549 /* Free face cache C and faces in it, including their X resources. */
4553 struct face_cache
*c
;
4557 free_realized_faces (c
);
4559 xfree (c
->faces_by_id
);
4565 /* Cache realized face FACE in face cache C. HASH is the hash value
4566 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4567 FACE), insert the new face to the beginning of the collision list
4568 of the face hash table of C. Otherwise, add the new face to the
4569 end of the collision list. This way, lookup_face can quickly find
4570 that a requested face is not cached. */
4573 cache_face (c
, face
, hash
)
4574 struct face_cache
*c
;
4578 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4582 if (face
->ascii_face
!= face
)
4584 struct face
*last
= c
->buckets
[i
];
4595 c
->buckets
[i
] = face
;
4596 face
->prev
= face
->next
= NULL
;
4602 face
->next
= c
->buckets
[i
];
4604 face
->next
->prev
= face
;
4605 c
->buckets
[i
] = face
;
4608 /* Find a free slot in C->faces_by_id and use the index of the free
4609 slot as FACE->id. */
4610 for (i
= 0; i
< c
->used
; ++i
)
4611 if (c
->faces_by_id
[i
] == NULL
)
4615 /* Maybe enlarge C->faces_by_id. */
4618 if (c
->used
== c
->size
)
4621 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4622 if (new_size
== c
->size
)
4623 abort (); /* Alternatives? ++kfs */
4624 sz
= new_size
* sizeof *c
->faces_by_id
;
4625 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4632 /* Check that FACE got a unique id. */
4637 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4638 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4644 #endif /* GLYPH_DEBUG */
4646 c
->faces_by_id
[i
] = face
;
4650 /* Remove face FACE from cache C. */
4653 uncache_face (c
, face
)
4654 struct face_cache
*c
;
4657 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4660 face
->prev
->next
= face
->next
;
4662 c
->buckets
[i
] = face
->next
;
4665 face
->next
->prev
= face
->prev
;
4667 c
->faces_by_id
[face
->id
] = NULL
;
4668 if (face
->id
== c
->used
)
4673 /* Look up a realized face with face attributes ATTR in the face cache
4674 of frame F. The face will be used to display ASCII characters.
4675 Value is the ID of the face found. If no suitable face is found,
4676 realize a new one. */
4679 lookup_face (f
, attr
)
4683 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4688 xassert (cache
!= NULL
);
4689 check_lface_attrs (attr
);
4691 /* Look up ATTR in the face cache. */
4692 hash
= lface_hash (attr
);
4693 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4695 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4697 if (face
->ascii_face
!= face
)
4699 /* There's no more ASCII face. */
4703 if (face
->hash
== hash
4704 && lface_equal_p (face
->lface
, attr
))
4708 /* If not found, realize a new face. */
4710 face
= realize_face (cache
, attr
, -1);
4713 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4714 #endif /* GLYPH_DEBUG */
4719 #ifdef HAVE_WINDOW_SYSTEM
4720 /* Look up a realized face that has the same attributes as BASE_FACE
4721 except for the font in the face cache of frame F. If FONT-OBJECT
4722 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4723 the face has no font. Value is the ID of the face found. If no
4724 suitable face is found, realize a new one. */
4727 face_for_font (f
, font_object
, base_face
)
4729 Lisp_Object font_object
;
4730 struct face
*base_face
;
4732 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4737 xassert (cache
!= NULL
);
4738 base_face
= base_face
->ascii_face
;
4739 hash
= lface_hash (base_face
->lface
);
4740 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4742 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4744 if (face
->ascii_face
== face
)
4746 if (face
->ascii_face
== base_face
4747 && face
->font
== (NILP (font_object
) ? NULL
4748 : XFONT_OBJECT (font_object
))
4749 && lface_equal_p (face
->lface
, base_face
->lface
))
4753 /* If not found, realize a new face. */
4754 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4757 #endif /* HAVE_WINDOW_SYSTEM */
4759 /* Return the face id of the realized face for named face SYMBOL on
4760 frame F suitable for displaying ASCII characters. Value is -1 if
4761 the face couldn't be determined, which might happen if the default
4762 face isn't realized and cannot be realized. */
4765 lookup_named_face (f
, symbol
, signal_p
)
4770 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4771 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4772 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4774 if (default_face
== NULL
)
4776 if (!realize_basic_faces (f
))
4778 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4779 if (default_face
== NULL
)
4780 abort (); /* realize_basic_faces must have set it up */
4783 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4786 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4787 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4789 return lookup_face (f
, attrs
);
4793 /* Return the display face-id of the basic face who's canonical face-id
4794 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4795 basic face has bee remapped via Vface_remapping_alist. This function is
4796 conservative: if something goes wrong, it will simply return FACE_ID
4797 rather than signal an error. */
4800 lookup_basic_face (f
, face_id
)
4804 Lisp_Object name
, mapping
;
4805 int remapped_face_id
;
4807 if (NILP (Vface_remapping_alist
))
4808 return face_id
; /* Nothing to do. */
4812 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4813 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4814 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4815 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4816 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4817 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4818 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4819 case BORDER_FACE_ID
: name
= Qborder
; break;
4820 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4821 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4822 case MENU_FACE_ID
: name
= Qmenu
; break;
4825 abort (); /* the caller is supposed to pass us a basic face id */
4828 /* Do a quick scan through Vface_remapping_alist, and return immediately
4829 if there is no remapping for face NAME. This is just an optimization
4830 for the very common no-remapping case. */
4831 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4833 return face_id
; /* Give up. */
4835 /* If there is a remapping entry, lookup the face using NAME, which will
4836 handle the remapping too. */
4837 remapped_face_id
= lookup_named_face (f
, name
, 0);
4838 if (remapped_face_id
< 0)
4839 return face_id
; /* Give up. */
4841 return remapped_face_id
;
4845 /* Return the ID of the realized ASCII face of Lisp face with ID
4846 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4849 ascii_face_of_lisp_face (f
, lface_id
)
4855 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4857 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4858 face_id
= lookup_named_face (f
, face_name
, 1);
4867 /* Return a face for charset ASCII that is like the face with id
4868 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4869 STEPS < 0 means larger. Value is the id of the face. */
4872 smaller_face (f
, face_id
, steps
)
4876 #ifdef HAVE_WINDOW_SYSTEM
4878 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4879 int pt
, last_pt
, last_height
;
4882 struct face
*new_face
;
4884 /* If not called for an X frame, just return the original face. */
4885 if (FRAME_TERMCAP_P (f
))
4888 /* Try in increments of 1/2 pt. */
4889 delta
= steps
< 0 ? 5 : -5;
4890 steps
= eabs (steps
);
4892 face
= FACE_FROM_ID (f
, face_id
);
4893 bcopy (face
->lface
, attrs
, sizeof attrs
);
4894 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4895 new_face_id
= face_id
;
4896 last_height
= FONT_HEIGHT (face
->font
);
4900 /* Give up if we cannot find a font within 10pt. */
4901 && eabs (last_pt
- pt
) < 100)
4903 /* Look up a face for a slightly smaller/larger font. */
4905 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4906 new_face_id
= lookup_face (f
, attrs
);
4907 new_face
= FACE_FROM_ID (f
, new_face_id
);
4909 /* If height changes, count that as one step. */
4910 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4911 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4914 last_height
= FONT_HEIGHT (new_face
->font
);
4921 #else /* not HAVE_WINDOW_SYSTEM */
4925 #endif /* not HAVE_WINDOW_SYSTEM */
4929 /* Return a face for charset ASCII that is like the face with id
4930 FACE_ID on frame F, but has height HEIGHT. */
4933 face_with_height (f
, face_id
, height
)
4938 #ifdef HAVE_WINDOW_SYSTEM
4940 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4942 if (FRAME_TERMCAP_P (f
)
4946 face
= FACE_FROM_ID (f
, face_id
);
4947 bcopy (face
->lface
, attrs
, sizeof attrs
);
4948 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4949 face_id
= lookup_face (f
, attrs
);
4950 #endif /* HAVE_WINDOW_SYSTEM */
4956 /* Return the face id of the realized face for named face SYMBOL on
4957 frame F suitable for displaying ASCII characters, and use
4958 attributes of the face FACE_ID for attributes that aren't
4959 completely specified by SYMBOL. This is like lookup_named_face,
4960 except that the default attributes come from FACE_ID, not from the
4961 default face. FACE_ID is assumed to be already realized. */
4964 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
4970 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4971 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4972 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4977 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0);
4978 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4979 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4980 return lookup_face (f
, attrs
);
4983 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4984 Sface_attributes_as_vector
, 1, 1, 0,
4985 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4990 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4992 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4999 /***********************************************************************
5000 Face capability testing
5001 ***********************************************************************/
5004 /* If the distance (as returned by color_distance) between two colors is
5005 less than this, then they are considered the same, for determining
5006 whether a color is supported or not. The range of values is 0-65535. */
5008 #define TTY_SAME_COLOR_THRESHOLD 10000
5010 #ifdef HAVE_WINDOW_SYSTEM
5012 /* Return non-zero if all the face attributes in ATTRS are supported
5013 on the window-system frame F.
5015 The definition of `supported' is somewhat heuristic, but basically means
5016 that a face containing all the attributes in ATTRS, when merged with the
5017 default face for display, can be represented in a way that's
5019 \(1) different in appearance than the default face, and
5020 \(2) `close in spirit' to what the attributes specify, if not exact. */
5023 x_supports_face_attributes_p (f
, attrs
, def_face
)
5026 struct face
*def_face
;
5028 Lisp_Object
*def_attrs
= def_face
->lface
;
5030 /* Check that other specified attributes are different that the default
5032 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5033 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5034 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5035 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5036 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5037 def_attrs
[LFACE_INVERSE_INDEX
]))
5038 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5039 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5040 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5041 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5042 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5043 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5044 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5045 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5046 def_attrs
[LFACE_STIPPLE_INDEX
]))
5047 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5048 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5049 def_attrs
[LFACE_OVERLINE_INDEX
]))
5050 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5051 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5052 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5053 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5054 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5055 def_attrs
[LFACE_BOX_INDEX
])))
5058 /* Check font-related attributes, as those are the most commonly
5059 "unsupported" on a window-system (because of missing fonts). */
5060 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5061 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5062 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5063 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5064 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5065 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
5069 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5072 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5074 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5076 face_id
= lookup_face (f
, merged_attrs
);
5077 face
= FACE_FROM_ID (f
, face_id
);
5080 error ("Cannot make face");
5082 /* If the font is the same, or no font is found, then not
5084 if (face
->font
== def_face
->font
5087 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
5088 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
5092 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
5093 || face
->font
->driver
->case_sensitive
)
5095 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
5096 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
5097 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
5098 s2
, make_number (0), Qnil
, Qt
), Qt
))
5104 /* Everything checks out, this face is supported. */
5108 #endif /* HAVE_WINDOW_SYSTEM */
5110 /* Return non-zero if all the face attributes in ATTRS are supported
5113 The definition of `supported' is somewhat heuristic, but basically means
5114 that a face containing all the attributes in ATTRS, when merged
5115 with the default face for display, can be represented in a way that's
5117 \(1) different in appearance than the default face, and
5118 \(2) `close in spirit' to what the attributes specify, if not exact.
5120 Point (2) implies that a `:weight black' attribute will be satisfied
5121 by any terminal that can display bold, and a `:foreground "yellow"' as
5122 long as the terminal can display a yellowish color, but `:slant italic'
5123 will _not_ be satisfied by the tty display code's automatic
5124 substitution of a `dim' face for italic. */
5127 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5130 struct face
*def_face
;
5133 Lisp_Object val
, fg
, bg
;
5134 XColor fg_tty_color
, fg_std_color
;
5135 XColor bg_tty_color
, bg_std_color
;
5136 unsigned test_caps
= 0;
5137 Lisp_Object
*def_attrs
= def_face
->lface
;
5140 /* First check some easy-to-check stuff; ttys support none of the
5141 following attributes, so we can just return false if any are requested
5142 (even if `nominal' values are specified, we should still return false,
5143 as that will be the same value that the default face uses). We
5144 consider :slant unsupportable on ttys, even though the face code
5145 actually `fakes' them using a dim attribute if possible. This is
5146 because the faked result is too different from what the face
5148 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5149 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5150 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5151 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5152 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5153 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5154 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5155 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5156 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5160 /* Test for terminal `capabilities' (non-color character attributes). */
5162 /* font weight (bold/dim) */
5163 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5166 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
5170 if (def_weight
> 100)
5171 return 0; /* same as default */
5172 test_caps
= TTY_CAP_BOLD
;
5174 else if (weight
< 100)
5176 if (def_weight
< 100)
5177 return 0; /* same as default */
5178 test_caps
= TTY_CAP_DIM
;
5180 else if (def_weight
== 100)
5181 return 0; /* same as default */
5185 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5186 if (!UNSPECIFIEDP (val
))
5189 return 0; /* ttys can't use colored underlines */
5190 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5191 return 0; /* same as default */
5193 test_caps
|= TTY_CAP_UNDERLINE
;
5197 val
= attrs
[LFACE_INVERSE_INDEX
];
5198 if (!UNSPECIFIEDP (val
))
5200 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
5201 return 0; /* same as default */
5203 test_caps
|= TTY_CAP_INVERSE
;
5207 /* Color testing. */
5209 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5210 we use them when calling `tty_capable_p' below, even if the face
5211 specifies no colors. */
5212 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5213 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5215 /* Check if foreground color is close enough. */
5216 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5219 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5221 if (face_attr_equal_p (fg
, def_fg
))
5222 return 0; /* same as default */
5223 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5224 return 0; /* not a valid color */
5225 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5226 > TTY_SAME_COLOR_THRESHOLD
)
5227 return 0; /* displayed color is too different */
5229 /* Make sure the color is really different than the default. */
5231 XColor def_fg_color
;
5232 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5233 && (color_distance (&fg_tty_color
, &def_fg_color
)
5234 <= TTY_SAME_COLOR_THRESHOLD
))
5239 /* Check if background color is close enough. */
5240 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5243 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5245 if (face_attr_equal_p (bg
, def_bg
))
5246 return 0; /* same as default */
5247 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5248 return 0; /* not a valid color */
5249 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5250 > TTY_SAME_COLOR_THRESHOLD
)
5251 return 0; /* displayed color is too different */
5253 /* Make sure the color is really different than the default. */
5255 XColor def_bg_color
;
5256 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5257 && (color_distance (&bg_tty_color
, &def_bg_color
)
5258 <= TTY_SAME_COLOR_THRESHOLD
))
5263 /* If both foreground and background are requested, see if the
5264 distance between them is OK. We just check to see if the distance
5265 between the tty's foreground and background is close enough to the
5266 distance between the standard foreground and background. */
5267 if (STRINGP (fg
) && STRINGP (bg
))
5270 = (color_distance (&fg_std_color
, &bg_std_color
)
5271 - color_distance (&fg_tty_color
, &bg_tty_color
));
5272 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5273 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5278 /* See if the capabilities we selected above are supported, with the
5280 if (test_caps
!= 0 &&
5281 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5285 /* Hmmm, everything checks out, this terminal must support this face. */
5290 DEFUN ("display-supports-face-attributes-p",
5291 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5293 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5294 The optional argument DISPLAY can be a display name, a frame, or
5295 nil (meaning the selected frame's display).
5297 The definition of `supported' is somewhat heuristic, but basically means
5298 that a face containing all the attributes in ATTRIBUTES, when merged
5299 with the default face for display, can be represented in a way that's
5301 \(1) different in appearance than the default face, and
5302 \(2) `close in spirit' to what the attributes specify, if not exact.
5304 Point (2) implies that a `:weight black' attribute will be satisfied by
5305 any display that can display bold, and a `:foreground \"yellow\"' as long
5306 as it can display a yellowish color, but `:slant italic' will _not_ be
5307 satisfied by the tty display code's automatic substitution of a `dim'
5308 face for italic. */)
5309 (attributes
, display
)
5310 Lisp_Object attributes
, display
;
5312 int supports
= 0, i
;
5315 struct face
*def_face
;
5316 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5318 if (noninteractive
|| !initialized
)
5319 /* We may not be able to access low-level face information in batch
5320 mode, or before being dumped, and this function is not going to
5321 be very useful in those cases anyway, so just give up. */
5325 frame
= selected_frame
;
5326 else if (FRAMEP (display
))
5330 /* Find any frame on DISPLAY. */
5331 Lisp_Object fl_tail
;
5334 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5336 frame
= XCAR (fl_tail
);
5337 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5338 XFRAME (frame
)->param_alist
)),
5344 CHECK_LIVE_FRAME (frame
);
5347 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5348 attrs
[i
] = Qunspecified
;
5349 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5351 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5352 if (def_face
== NULL
)
5354 if (! realize_basic_faces (f
))
5355 error ("Cannot realize default face");
5356 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5357 if (def_face
== NULL
)
5358 abort (); /* realize_basic_faces must have set it up */
5361 /* Dispatch to the appropriate handler. */
5362 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5363 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5364 #ifdef HAVE_WINDOW_SYSTEM
5366 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5369 return supports
? Qt
: Qnil
;
5373 /***********************************************************************
5375 ***********************************************************************/
5377 DEFUN ("internal-set-font-selection-order",
5378 Finternal_set_font_selection_order
,
5379 Sinternal_set_font_selection_order
, 1, 1, 0,
5380 doc
: /* Set font selection order for face font selection to ORDER.
5381 ORDER must be a list of length 4 containing the symbols `:width',
5382 `:height', `:weight', and `:slant'. Face attributes appearing
5383 first in ORDER are matched first, e.g. if `:height' appears before
5384 `:weight' in ORDER, font selection first tries to find a font with
5385 a suitable height, and then tries to match the font weight.
5392 int indices
[DIM (font_sort_order
)];
5395 bzero (indices
, sizeof indices
);
5399 CONSP (list
) && i
< DIM (indices
);
5400 list
= XCDR (list
), ++i
)
5402 Lisp_Object attr
= XCAR (list
);
5405 if (EQ (attr
, QCwidth
))
5407 else if (EQ (attr
, QCheight
))
5408 xlfd
= XLFD_POINT_SIZE
;
5409 else if (EQ (attr
, QCweight
))
5411 else if (EQ (attr
, QCslant
))
5416 if (indices
[i
] != 0)
5421 if (!NILP (list
) || i
!= DIM (indices
))
5422 signal_error ("Invalid font sort order", order
);
5423 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5424 if (indices
[i
] == 0)
5425 signal_error ("Invalid font sort order", order
);
5427 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5429 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5430 free_all_realized_faces (Qnil
);
5433 font_update_sort_order (font_sort_order
);
5439 DEFUN ("internal-set-alternative-font-family-alist",
5440 Finternal_set_alternative_font_family_alist
,
5441 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5442 doc
: /* Define alternative font families to try in face font selection.
5443 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5444 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5445 be found. Value is ALIST. */)
5449 Lisp_Object tail
, tail2
;
5452 alist
= Fcopy_sequence (alist
);
5453 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5454 for (tail2
= XCAR (tail
); CONSP (tail2
); tail2
= XCDR (tail2
))
5455 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5456 Vface_alternative_font_family_alist
= alist
;
5457 free_all_realized_faces (Qnil
);
5462 DEFUN ("internal-set-alternative-font-registry-alist",
5463 Finternal_set_alternative_font_registry_alist
,
5464 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5465 doc
: /* Define alternative font registries to try in face font selection.
5466 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5467 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5468 be found. Value is ALIST. */)
5472 Lisp_Object tail
, tail2
;
5475 alist
= Fcopy_sequence (alist
);
5476 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5477 for (tail2
= XCAR (tail
); CONSP (tail2
); tail2
= XCDR (tail2
))
5478 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5479 Vface_alternative_font_registry_alist
= alist
;
5480 free_all_realized_faces (Qnil
);
5485 #ifdef HAVE_WINDOW_SYSTEM
5487 /* Ignore the difference of font point size less than this value. */
5489 #define FONT_POINT_SIZE_QUANTUM 5
5491 /* Return the fontset id of the base fontset name or alias name given
5492 by the fontset attribute of ATTRS. Value is -1 if the fontset
5493 attribute of ATTRS doesn't name a fontset. */
5496 face_fontset (attrs
)
5501 name
= attrs
[LFACE_FONTSET_INDEX
];
5502 if (!STRINGP (name
))
5504 return fs_query_fontset (name
, 0);
5507 #endif /* HAVE_WINDOW_SYSTEM */
5511 /***********************************************************************
5513 ***********************************************************************/
5515 /* Realize basic faces on frame F. Value is zero if frame parameters
5516 of F don't contain enough information needed to realize the default
5520 realize_basic_faces (f
)
5524 int count
= SPECPDL_INDEX ();
5526 /* Block input here so that we won't be surprised by an X expose
5527 event, for instance, without having the faces set up. */
5529 specbind (Qscalable_fonts_allowed
, Qt
);
5531 if (realize_default_face (f
))
5533 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5534 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5535 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5536 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5537 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5538 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5539 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5540 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5541 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5542 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5543 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5545 /* Reflect changes in the `menu' face in menu bars. */
5546 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5548 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5549 #ifdef USE_X_TOOLKIT
5550 if (FRAME_WINDOW_P (f
))
5551 x_update_menu_appearance (f
);
5558 unbind_to (count
, Qnil
);
5564 /* Realize the default face on frame F. If the face is not fully
5565 specified, make it fully-specified. Attributes of the default face
5566 that are not explicitly specified are taken from frame parameters. */
5569 realize_default_face (f
)
5572 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5574 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5577 /* If the `default' face is not yet known, create it. */
5578 lface
= lface_from_face_name (f
, Qdefault
, 0);
5582 XSETFRAME (frame
, f
);
5583 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5586 #ifdef HAVE_WINDOW_SYSTEM
5587 if (FRAME_WINDOW_P (f
))
5589 Lisp_Object font_object
;
5591 XSETFONT (font_object
, FRAME_FONT (f
));
5592 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5593 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5594 f
->default_face_done_p
= 1;
5596 #endif /* HAVE_WINDOW_SYSTEM */
5598 if (!FRAME_WINDOW_P (f
))
5600 LFACE_FAMILY (lface
) = build_string ("default");
5601 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5602 LFACE_SWIDTH (lface
) = Qnormal
;
5603 LFACE_HEIGHT (lface
) = make_number (1);
5604 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5605 LFACE_WEIGHT (lface
) = Qnormal
;
5606 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5607 LFACE_SLANT (lface
) = Qnormal
;
5608 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5609 LFACE_FONTSET (lface
) = Qnil
;
5612 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5613 LFACE_UNDERLINE (lface
) = Qnil
;
5615 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5616 LFACE_OVERLINE (lface
) = Qnil
;
5618 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5619 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5621 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5622 LFACE_BOX (lface
) = Qnil
;
5624 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5625 LFACE_INVERSE (lface
) = Qnil
;
5627 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5629 /* This function is called so early that colors are not yet
5630 set in the frame parameter list. */
5631 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5633 if (CONSP (color
) && STRINGP (XCDR (color
)))
5634 LFACE_FOREGROUND (lface
) = XCDR (color
);
5635 else if (FRAME_WINDOW_P (f
))
5637 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5638 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5643 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5645 /* This function is called so early that colors are not yet
5646 set in the frame parameter list. */
5647 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5648 if (CONSP (color
) && STRINGP (XCDR (color
)))
5649 LFACE_BACKGROUND (lface
) = XCDR (color
);
5650 else if (FRAME_WINDOW_P (f
))
5652 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5653 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5658 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5659 LFACE_STIPPLE (lface
) = Qnil
;
5661 /* Realize the face; it must be fully-specified now. */
5662 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5663 check_lface (lface
);
5664 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5665 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5667 #ifdef HAVE_WINDOW_SYSTEM
5668 #ifdef HAVE_X_WINDOWS
5669 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5671 /* This can happen when making a frame on a display that does
5672 not support the default font. */
5676 /* Otherwise, the font specified for the frame was not
5677 acceptable as a font for the default face (perhaps because
5678 auto-scaled fonts are rejected), so we must adjust the frame
5680 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5682 #endif /* HAVE_X_WINDOWS */
5683 #endif /* HAVE_WINDOW_SYSTEM */
5688 /* Realize basic faces other than the default face in face cache C.
5689 SYMBOL is the face name, ID is the face id the realized face must
5690 have. The default face must have been realized already. */
5693 realize_named_face (f
, symbol
, id
)
5698 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5699 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5700 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5701 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5702 struct face
*new_face
;
5704 /* The default face must exist and be fully specified. */
5705 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5706 check_lface_attrs (attrs
);
5707 xassert (lface_fully_specified_p (attrs
));
5709 /* If SYMBOL isn't know as a face, create it. */
5713 XSETFRAME (frame
, f
);
5714 lface
= Finternal_make_lisp_face (symbol
, frame
);
5717 /* Merge SYMBOL's face with the default face. */
5718 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5719 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5721 /* Realize the face. */
5722 new_face
= realize_face (c
, attrs
, id
);
5726 /* Realize the fully-specified face with attributes ATTRS in face
5727 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5728 non-negative, it is an ID of face to remove before caching the new
5729 face. Value is a pointer to the newly created realized face. */
5731 static struct face
*
5732 realize_face (cache
, attrs
, former_face_id
)
5733 struct face_cache
*cache
;
5739 /* LFACE must be fully specified. */
5740 xassert (cache
!= NULL
);
5741 check_lface_attrs (attrs
);
5743 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5745 /* Remove the former face. */
5746 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5747 uncache_face (cache
, former_face
);
5748 free_realized_face (cache
->f
, former_face
);
5751 if (FRAME_WINDOW_P (cache
->f
))
5752 face
= realize_x_face (cache
, attrs
);
5753 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5754 face
= realize_tty_face (cache
, attrs
);
5755 else if (FRAME_INITIAL_P (cache
->f
))
5757 /* Create a dummy face. */
5758 face
= make_realized_face (attrs
);
5763 /* Insert the new face. */
5764 cache_face (cache
, face
, lface_hash (attrs
));
5769 #ifdef HAVE_WINDOW_SYSTEM
5770 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5771 same attributes as BASE_FACE except for the font on frame F.
5772 FONT-OBJECT may be nil, in which case, realized a face of
5775 static struct face
*
5776 realize_non_ascii_face (f
, font_object
, base_face
)
5778 Lisp_Object font_object
;
5779 struct face
*base_face
;
5781 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5784 face
= (struct face
*) xmalloc (sizeof *face
);
5789 = (! NILP (font_object
)
5790 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5791 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5793 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5794 face
->colors_copied_bitwise_p
= 1;
5795 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5798 cache_face (cache
, face
, face
->hash
);
5802 #endif /* HAVE_WINDOW_SYSTEM */
5805 /* Realize the fully-specified face with attributes ATTRS in face
5806 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5807 the new face doesn't share font with the default face, a fontname
5808 is allocated from the heap and set in `font_name' of the new face,
5809 but it is not yet loaded here. Value is a pointer to the newly
5810 created realized face. */
5812 static struct face
*
5813 realize_x_face (cache
, attrs
)
5814 struct face_cache
*cache
;
5817 struct face
*face
= NULL
;
5818 #ifdef HAVE_WINDOW_SYSTEM
5819 struct face
*default_face
;
5821 Lisp_Object stipple
, overline
, strike_through
, box
;
5823 xassert (FRAME_WINDOW_P (cache
->f
));
5825 /* Allocate a new realized face. */
5826 face
= make_realized_face (attrs
);
5827 face
->ascii_face
= face
;
5831 /* Determine the font to use. Most of the time, the font will be
5832 the same as the font of the default face, so try that first. */
5833 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5835 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5837 face
->font
= default_face
->font
;
5839 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5843 /* If the face attribute ATTRS specifies a fontset, use it as
5844 the base of a new realized fontset. Otherwise, use the same
5845 base fontset as of the default face. The base determines
5846 registry and encoding of a font. It may also determine
5847 foundry and family. The other fields of font name pattern
5848 are constructed from ATTRS. */
5849 int fontset
= face_fontset (attrs
);
5851 /* If we are realizing the default face, ATTRS should specify a
5852 fontset. In other words, if FONTSET is -1, we are not
5853 realizing the default face, thus the default face should have
5854 already been realized. */
5856 fontset
= default_face
->fontset
;
5859 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5860 attrs
[LFACE_FONT_INDEX
]
5861 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5862 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5864 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5865 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5875 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5876 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5877 face
->overstrike
= 1;
5879 /* Load colors, and set remaining attributes. */
5881 load_face_colors (f
, face
, attrs
);
5884 box
= attrs
[LFACE_BOX_INDEX
];
5887 /* A simple box of line width 1 drawn in color given by
5889 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5891 face
->box
= FACE_SIMPLE_BOX
;
5892 face
->box_line_width
= 1;
5894 else if (INTEGERP (box
))
5896 /* Simple box of specified line width in foreground color of the
5898 xassert (XINT (box
) != 0);
5899 face
->box
= FACE_SIMPLE_BOX
;
5900 face
->box_line_width
= XINT (box
);
5901 face
->box_color
= face
->foreground
;
5902 face
->box_color_defaulted_p
= 1;
5904 else if (CONSP (box
))
5906 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5907 being one of `raised' or `sunken'. */
5908 face
->box
= FACE_SIMPLE_BOX
;
5909 face
->box_color
= face
->foreground
;
5910 face
->box_color_defaulted_p
= 1;
5911 face
->box_line_width
= 1;
5915 Lisp_Object keyword
, value
;
5917 keyword
= XCAR (box
);
5925 if (EQ (keyword
, QCline_width
))
5927 if (INTEGERP (value
) && XINT (value
) != 0)
5928 face
->box_line_width
= XINT (value
);
5930 else if (EQ (keyword
, QCcolor
))
5932 if (STRINGP (value
))
5934 face
->box_color
= load_color (f
, face
, value
,
5936 face
->use_box_color_for_shadows_p
= 1;
5939 else if (EQ (keyword
, QCstyle
))
5941 if (EQ (value
, Qreleased_button
))
5942 face
->box
= FACE_RAISED_BOX
;
5943 else if (EQ (value
, Qpressed_button
))
5944 face
->box
= FACE_SUNKEN_BOX
;
5949 /* Text underline, overline, strike-through. */
5951 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5953 /* Use default color (same as foreground color). */
5954 face
->underline_p
= 1;
5955 face
->underline_defaulted_p
= 1;
5956 face
->underline_color
= 0;
5958 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5960 /* Use specified color. */
5961 face
->underline_p
= 1;
5962 face
->underline_defaulted_p
= 0;
5963 face
->underline_color
5964 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5965 LFACE_UNDERLINE_INDEX
);
5967 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5969 face
->underline_p
= 0;
5970 face
->underline_defaulted_p
= 0;
5971 face
->underline_color
= 0;
5974 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5975 if (STRINGP (overline
))
5977 face
->overline_color
5978 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5979 LFACE_OVERLINE_INDEX
);
5980 face
->overline_p
= 1;
5982 else if (EQ (overline
, Qt
))
5984 face
->overline_color
= face
->foreground
;
5985 face
->overline_color_defaulted_p
= 1;
5986 face
->overline_p
= 1;
5989 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5990 if (STRINGP (strike_through
))
5992 face
->strike_through_color
5993 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5994 LFACE_STRIKE_THROUGH_INDEX
);
5995 face
->strike_through_p
= 1;
5997 else if (EQ (strike_through
, Qt
))
5999 face
->strike_through_color
= face
->foreground
;
6000 face
->strike_through_color_defaulted_p
= 1;
6001 face
->strike_through_p
= 1;
6004 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6005 if (!NILP (stipple
))
6006 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6007 #endif /* HAVE_WINDOW_SYSTEM */
6013 /* Map a specified color of face FACE on frame F to a tty color index.
6014 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6015 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6016 default foreground/background colors. */
6019 map_tty_color (f
, face
, idx
, defaulted
)
6022 enum lface_attribute_index idx
;
6025 Lisp_Object frame
, color
, def
;
6026 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6027 unsigned long default_pixel
, default_other_pixel
, pixel
;
6029 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6033 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6034 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6038 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6039 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6042 XSETFRAME (frame
, f
);
6043 color
= face
->lface
[idx
];
6047 && CONSP (Vtty_defined_color_alist
)
6048 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6051 /* Associations in tty-defined-color-alist are of the form
6052 (NAME INDEX R G B). We need the INDEX part. */
6053 pixel
= XINT (XCAR (XCDR (def
)));
6056 if (pixel
== default_pixel
&& STRINGP (color
))
6058 pixel
= load_color (f
, face
, color
, idx
);
6061 /* If the foreground of the default face is the default color,
6062 use the foreground color defined by the frame. */
6063 if (FRAME_MSDOS_P (f
))
6065 if (pixel
== default_pixel
6066 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6069 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6071 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6072 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6075 else if (pixel
== default_other_pixel
)
6078 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6080 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6081 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6089 face
->foreground
= pixel
;
6091 face
->background
= pixel
;
6095 /* Realize the fully-specified face with attributes ATTRS in face
6096 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
6097 Value is a pointer to the newly created realized face. */
6099 static struct face
*
6100 realize_tty_face (cache
, attrs
)
6101 struct face_cache
*cache
;
6106 int face_colors_defaulted
= 0;
6107 struct frame
*f
= cache
->f
;
6109 /* Frame must be a termcap frame. */
6110 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6112 /* Allocate a new realized face. */
6113 face
= make_realized_face (attrs
);
6115 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6118 /* Map face attributes to TTY appearances. We map slant to
6119 dimmed text because we want italic text to appear differently
6120 and because dimmed text is probably used infrequently. */
6121 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
6122 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
6124 face
->tty_bold_p
= 1;
6125 if (weight
< 100 || slant
!= 100)
6126 face
->tty_dim_p
= 1;
6127 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6128 face
->tty_underline_p
= 1;
6129 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6130 face
->tty_reverse_p
= 1;
6132 /* Map color names to color indices. */
6133 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6134 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6136 /* Swap colors if face is inverse-video. If the colors are taken
6137 from the frame colors, they are already inverted, since the
6138 frame-creation function calls x-handle-reverse-video. */
6139 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6141 unsigned long tem
= face
->foreground
;
6142 face
->foreground
= face
->background
;
6143 face
->background
= tem
;
6146 if (tty_suppress_bold_inverse_default_colors_p
6148 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6149 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6150 face
->tty_bold_p
= 0;
6156 DEFUN ("tty-suppress-bold-inverse-default-colors",
6157 Ftty_suppress_bold_inverse_default_colors
,
6158 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6159 doc
: /* Suppress/allow boldness of faces with inverse default colors.
6160 SUPPRESS non-nil means suppress it.
6161 This affects bold faces on TTYs whose foreground is the default background
6162 color of the display and whose background is the default foreground color.
6163 For such faces, the bold face attribute is ignored if this variable
6166 Lisp_Object suppress
;
6168 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6169 ++face_change_count
;
6175 /***********************************************************************
6177 ***********************************************************************/
6179 /* Return the ID of the face to use to display character CH with face
6180 property PROP on frame F in current_buffer. */
6183 compute_char_face (f
, ch
, prop
)
6190 if (NILP (current_buffer
->enable_multibyte_characters
))
6195 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6196 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6200 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6201 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6202 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6203 merge_face_ref (f
, prop
, attrs
, 1, 0);
6204 face_id
= lookup_face (f
, attrs
);
6210 /* Return the face ID associated with buffer position POS for
6211 displaying ASCII characters. Return in *ENDPTR the position at
6212 which a different face is needed, as far as text properties and
6213 overlays are concerned. W is a window displaying current_buffer.
6215 REGION_BEG, REGION_END delimit the region, so it can be
6218 LIMIT is a position not to scan beyond. That is to limit the time
6219 this function can take.
6221 If MOUSE is non-zero, use the character's mouse-face, not its face.
6223 The face returned is suitable for displaying ASCII characters. */
6226 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6227 endptr
, limit
, mouse
)
6230 EMACS_INT region_beg
, region_end
;
6235 struct frame
*f
= XFRAME (w
->frame
);
6236 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6237 Lisp_Object prop
, position
;
6239 Lisp_Object
*overlay_vec
;
6242 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6243 Lisp_Object limit1
, end
;
6244 struct face
*default_face
;
6246 /* W must display the current buffer. We could write this function
6247 to use the frame and buffer of W, but right now it doesn't. */
6248 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6250 XSETFRAME (frame
, f
);
6251 XSETFASTINT (position
, pos
);
6254 if (pos
< region_beg
&& region_beg
< endpos
)
6255 endpos
= region_beg
;
6257 /* Get the `face' or `mouse_face' text property at POS, and
6258 determine the next position at which the property changes. */
6259 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6260 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6261 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6263 endpos
= XINT (end
);
6265 /* Look at properties from overlays. */
6267 EMACS_INT next_overlay
;
6269 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6270 if (next_overlay
< endpos
)
6271 endpos
= next_overlay
;
6277 /* Perhaps remap BASE_FACE_ID to a user-specified alternative. */
6278 if (NILP (Vface_remapping_alist
))
6279 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6281 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6283 /* Optimize common cases where we can use the default face. */
6286 && !(pos
>= region_beg
&& pos
< region_end
))
6287 return default_face
->id
;
6289 /* Begin with attributes from the default face. */
6290 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6292 /* Merge in attributes specified via text properties. */
6294 merge_face_ref (f
, prop
, attrs
, 1, 0);
6296 /* Now merge the overlay data. */
6297 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6298 for (i
= 0; i
< noverlays
; i
++)
6303 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6305 merge_face_ref (f
, prop
, attrs
, 1, 0);
6307 oend
= OVERLAY_END (overlay_vec
[i
]);
6308 oendpos
= OVERLAY_POSITION (oend
);
6309 if (oendpos
< endpos
)
6313 /* If in the region, merge in the region face. */
6314 if (pos
>= region_beg
&& pos
< region_end
)
6316 merge_named_face (f
, Qregion
, attrs
, 0);
6318 if (region_end
< endpos
)
6319 endpos
= region_end
;
6324 /* Look up a realized face with the given face attributes,
6325 or realize a new one for ASCII characters. */
6326 return lookup_face (f
, attrs
);
6329 /* Return the face ID at buffer position POS for displaying ASCII
6330 characters associated with overlay strings for overlay OVERLAY.
6332 Like face_at_buffer_position except for OVERLAY. Currently it
6333 simply disregards the `face' properties of all overlays. */
6336 face_for_overlay_string (w
, pos
, region_beg
, region_end
,
6337 endptr
, limit
, mouse
, overlay
)
6340 EMACS_INT region_beg
, region_end
;
6344 Lisp_Object overlay
;
6346 struct frame
*f
= XFRAME (w
->frame
);
6347 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6348 Lisp_Object prop
, position
;
6351 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6352 Lisp_Object limit1
, end
;
6353 struct face
*default_face
;
6355 /* W must display the current buffer. We could write this function
6356 to use the frame and buffer of W, but right now it doesn't. */
6357 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6359 XSETFRAME (frame
, f
);
6360 XSETFASTINT (position
, pos
);
6363 if (pos
< region_beg
&& region_beg
< endpos
)
6364 endpos
= region_beg
;
6366 /* Get the `face' or `mouse_face' text property at POS, and
6367 determine the next position at which the property changes. */
6368 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6369 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6370 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6372 endpos
= XINT (end
);
6376 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6378 /* Optimize common cases where we can use the default face. */
6380 && !(pos
>= region_beg
&& pos
< region_end
))
6381 return DEFAULT_FACE_ID
;
6383 /* Begin with attributes from the default face. */
6384 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6386 /* Merge in attributes specified via text properties. */
6388 merge_face_ref (f
, prop
, attrs
, 1, 0);
6390 /* If in the region, merge in the region face. */
6391 if (pos
>= region_beg
&& pos
< region_end
)
6393 merge_named_face (f
, Qregion
, attrs
, 0);
6395 if (region_end
< endpos
)
6396 endpos
= region_end
;
6401 /* Look up a realized face with the given face attributes,
6402 or realize a new one for ASCII characters. */
6403 return lookup_face (f
, attrs
);
6407 /* Compute the face at character position POS in Lisp string STRING on
6408 window W, for ASCII characters.
6410 If STRING is an overlay string, it comes from position BUFPOS in
6411 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6412 not an overlay string. W must display the current buffer.
6413 REGION_BEG and REGION_END give the start and end positions of the
6414 region; both are -1 if no region is visible.
6416 BASE_FACE_ID is the id of a face to merge with. For strings coming
6417 from overlays or the `display' property it is the face at BUFPOS.
6419 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6421 Set *ENDPTR to the next position where to check for faces in
6422 STRING; -1 if the face is constant from POS to the end of the
6425 Value is the id of the face to use. The face returned is suitable
6426 for displaying ASCII characters. */
6429 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6430 region_end
, endptr
, base_face_id
, mouse_p
)
6433 EMACS_INT pos
, bufpos
;
6434 EMACS_INT region_beg
, region_end
;
6436 enum face_id base_face_id
;
6439 Lisp_Object prop
, position
, end
, limit
;
6440 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6441 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6442 struct face
*base_face
;
6443 int multibyte_p
= STRING_MULTIBYTE (string
);
6444 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6446 /* Get the value of the face property at the current position within
6447 STRING. Value is nil if there is no face property. */
6448 XSETFASTINT (position
, pos
);
6449 prop
= Fget_text_property (position
, prop_name
, string
);
6451 /* Get the next position at which to check for faces. Value of end
6452 is nil if face is constant all the way to the end of the string.
6453 Otherwise it is a string position where to check faces next.
6454 Limit is the maximum position up to which to check for property
6455 changes in Fnext_single_property_change. Strings are usually
6456 short, so set the limit to the end of the string. */
6457 XSETFASTINT (limit
, SCHARS (string
));
6458 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6460 *endptr
= XFASTINT (end
);
6464 base_face
= FACE_FROM_ID (f
, base_face_id
);
6465 xassert (base_face
);
6467 /* Optimize the default case that there is no face property and we
6468 are not in the region. */
6470 && (base_face_id
!= DEFAULT_FACE_ID
6471 /* BUFPOS <= 0 means STRING is not an overlay string, so
6472 that the region doesn't have to be taken into account. */
6474 || bufpos
< region_beg
6475 || bufpos
>= region_end
)
6477 /* We can't realize faces for different charsets differently
6478 if we don't have fonts, so we can stop here if not working
6479 on a window-system frame. */
6480 || !FRAME_WINDOW_P (f
)
6481 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6482 return base_face
->id
;
6484 /* Begin with attributes from the base face. */
6485 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6487 /* Merge in attributes specified via text properties. */
6489 merge_face_ref (f
, prop
, attrs
, 1, 0);
6491 /* If in the region, merge in the region face. */
6493 && bufpos
>= region_beg
6494 && bufpos
< region_end
)
6495 merge_named_face (f
, Qregion
, attrs
, 0);
6497 /* Look up a realized face with the given face attributes,
6498 or realize a new one for ASCII characters. */
6499 return lookup_face (f
, attrs
);
6503 /* Merge a face into a realized face.
6505 F is frame where faces are (to be) realized.
6507 FACE_NAME is named face to merge.
6509 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6511 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6513 BASE_FACE_ID is realized face to merge into.
6519 merge_faces (f
, face_name
, face_id
, base_face_id
)
6521 Lisp_Object face_name
;
6522 int face_id
, base_face_id
;
6524 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6525 struct face
*base_face
;
6527 base_face
= FACE_FROM_ID (f
, base_face_id
);
6529 return base_face_id
;
6531 if (EQ (face_name
, Qt
))
6533 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6534 return base_face_id
;
6535 face_name
= lface_id_to_name
[face_id
];
6536 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 1);
6539 return base_face_id
;
6542 /* Begin with attributes from the base face. */
6543 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6545 if (!NILP (face_name
))
6547 if (!merge_named_face (f
, face_name
, attrs
, 0))
6548 return base_face_id
;
6554 return base_face_id
;
6555 face
= FACE_FROM_ID (f
, face_id
);
6557 return base_face_id
;
6558 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6561 /* Look up a realized face with the given face attributes,
6562 or realize a new one for ASCII characters. */
6563 return lookup_face (f
, attrs
);
6568 #ifndef HAVE_X_WINDOWS
6569 DEFUN ("x-load-color-file", Fx_load_color_file
,
6570 Sx_load_color_file
, 1, 1, 0,
6571 doc
: /* Create an alist of color entries from an external file.
6573 The file should define one named RGB color per line like so:
6575 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6577 Lisp_Object filename
;
6580 Lisp_Object cmap
= Qnil
;
6581 Lisp_Object abspath
;
6583 CHECK_STRING (filename
);
6584 abspath
= Fexpand_file_name (filename
, Qnil
);
6586 fp
= fopen (SDATA (filename
), "rt");
6590 int red
, green
, blue
;
6595 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6596 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6598 char *name
= buf
+ num
;
6599 num
= strlen (name
) - 1;
6600 if (name
[num
] == '\n')
6602 cmap
= Fcons (Fcons (build_string (name
),
6604 make_number (RGB (red
, green
, blue
))),
6606 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6621 /***********************************************************************
6623 ***********************************************************************/
6627 /* Print the contents of the realized face FACE to stderr. */
6630 dump_realized_face (face
)
6633 fprintf (stderr
, "ID: %d\n", face
->id
);
6634 #ifdef HAVE_X_WINDOWS
6635 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6637 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6639 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6640 fprintf (stderr
, "background: 0x%lx (%s)\n",
6642 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6644 fprintf (stderr
, "font_name: %s (%s)\n",
6645 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6646 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6647 #ifdef HAVE_X_WINDOWS
6648 fprintf (stderr
, "font = %p\n", face
->font
);
6650 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6651 fprintf (stderr
, "underline: %d (%s)\n",
6653 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6654 fprintf (stderr
, "hash: %d\n", face
->hash
);
6658 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6666 fprintf (stderr
, "font selection order: ");
6667 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6668 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6669 fprintf (stderr
, "\n");
6671 fprintf (stderr
, "alternative fonts: ");
6672 debug_print (Vface_alternative_font_family_alist
);
6673 fprintf (stderr
, "\n");
6675 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6676 Fdump_face (make_number (i
));
6682 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6684 error ("Not a valid face");
6685 dump_realized_face (face
);
6692 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6693 0, 0, 0, doc
: /* */)
6696 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6697 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6698 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6702 #endif /* GLYPH_DEBUG != 0 */
6706 /***********************************************************************
6708 ***********************************************************************/
6713 Qface
= intern ("face");
6715 Qface_no_inherit
= intern ("face-no-inherit");
6716 staticpro (&Qface_no_inherit
);
6717 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6718 staticpro (&Qbitmap_spec_p
);
6719 Qframe_set_background_mode
= intern ("frame-set-background-mode");
6720 staticpro (&Qframe_set_background_mode
);
6722 /* Lisp face attribute keywords. */
6723 QCfamily
= intern (":family");
6724 staticpro (&QCfamily
);
6725 QCheight
= intern (":height");
6726 staticpro (&QCheight
);
6727 QCweight
= intern (":weight");
6728 staticpro (&QCweight
);
6729 QCslant
= intern (":slant");
6730 staticpro (&QCslant
);
6731 QCunderline
= intern (":underline");
6732 staticpro (&QCunderline
);
6733 QCinverse_video
= intern (":inverse-video");
6734 staticpro (&QCinverse_video
);
6735 QCreverse_video
= intern (":reverse-video");
6736 staticpro (&QCreverse_video
);
6737 QCforeground
= intern (":foreground");
6738 staticpro (&QCforeground
);
6739 QCbackground
= intern (":background");
6740 staticpro (&QCbackground
);
6741 QCstipple
= intern (":stipple");
6742 staticpro (&QCstipple
);
6743 QCwidth
= intern (":width");
6744 staticpro (&QCwidth
);
6745 QCfont
= intern (":font");
6746 staticpro (&QCfont
);
6747 QCfontset
= intern (":fontset");
6748 staticpro (&QCfontset
);
6749 QCbold
= intern (":bold");
6750 staticpro (&QCbold
);
6751 QCitalic
= intern (":italic");
6752 staticpro (&QCitalic
);
6753 QCoverline
= intern (":overline");
6754 staticpro (&QCoverline
);
6755 QCstrike_through
= intern (":strike-through");
6756 staticpro (&QCstrike_through
);
6757 QCbox
= intern (":box");
6759 QCinherit
= intern (":inherit");
6760 staticpro (&QCinherit
);
6762 /* Symbols used for Lisp face attribute values. */
6763 QCcolor
= intern (":color");
6764 staticpro (&QCcolor
);
6765 QCline_width
= intern (":line-width");
6766 staticpro (&QCline_width
);
6767 QCstyle
= intern (":style");
6768 staticpro (&QCstyle
);
6769 Qreleased_button
= intern ("released-button");
6770 staticpro (&Qreleased_button
);
6771 Qpressed_button
= intern ("pressed-button");
6772 staticpro (&Qpressed_button
);
6773 Qnormal
= intern ("normal");
6774 staticpro (&Qnormal
);
6775 Qultra_light
= intern ("ultra-light");
6776 staticpro (&Qultra_light
);
6777 Qextra_light
= intern ("extra-light");
6778 staticpro (&Qextra_light
);
6779 Qlight
= intern ("light");
6780 staticpro (&Qlight
);
6781 Qsemi_light
= intern ("semi-light");
6782 staticpro (&Qsemi_light
);
6783 Qsemi_bold
= intern ("semi-bold");
6784 staticpro (&Qsemi_bold
);
6785 Qbold
= intern ("bold");
6787 Qextra_bold
= intern ("extra-bold");
6788 staticpro (&Qextra_bold
);
6789 Qultra_bold
= intern ("ultra-bold");
6790 staticpro (&Qultra_bold
);
6791 Qoblique
= intern ("oblique");
6792 staticpro (&Qoblique
);
6793 Qitalic
= intern ("italic");
6794 staticpro (&Qitalic
);
6795 Qreverse_oblique
= intern ("reverse-oblique");
6796 staticpro (&Qreverse_oblique
);
6797 Qreverse_italic
= intern ("reverse-italic");
6798 staticpro (&Qreverse_italic
);
6799 Qultra_condensed
= intern ("ultra-condensed");
6800 staticpro (&Qultra_condensed
);
6801 Qextra_condensed
= intern ("extra-condensed");
6802 staticpro (&Qextra_condensed
);
6803 Qcondensed
= intern ("condensed");
6804 staticpro (&Qcondensed
);
6805 Qsemi_condensed
= intern ("semi-condensed");
6806 staticpro (&Qsemi_condensed
);
6807 Qsemi_expanded
= intern ("semi-expanded");
6808 staticpro (&Qsemi_expanded
);
6809 Qexpanded
= intern ("expanded");
6810 staticpro (&Qexpanded
);
6811 Qextra_expanded
= intern ("extra-expanded");
6812 staticpro (&Qextra_expanded
);
6813 Qultra_expanded
= intern ("ultra-expanded");
6814 staticpro (&Qultra_expanded
);
6815 Qbackground_color
= intern ("background-color");
6816 staticpro (&Qbackground_color
);
6817 Qforeground_color
= intern ("foreground-color");
6818 staticpro (&Qforeground_color
);
6819 Qunspecified
= intern ("unspecified");
6820 staticpro (&Qunspecified
);
6821 Qignore_defface
= intern (":ignore-defface");
6822 staticpro (&Qignore_defface
);
6824 Qface_alias
= intern ("face-alias");
6825 staticpro (&Qface_alias
);
6826 Qdefault
= intern ("default");
6827 staticpro (&Qdefault
);
6828 Qtool_bar
= intern ("tool-bar");
6829 staticpro (&Qtool_bar
);
6830 Qregion
= intern ("region");
6831 staticpro (&Qregion
);
6832 Qfringe
= intern ("fringe");
6833 staticpro (&Qfringe
);
6834 Qheader_line
= intern ("header-line");
6835 staticpro (&Qheader_line
);
6836 Qscroll_bar
= intern ("scroll-bar");
6837 staticpro (&Qscroll_bar
);
6838 Qmenu
= intern ("menu");
6840 Qcursor
= intern ("cursor");
6841 staticpro (&Qcursor
);
6842 Qborder
= intern ("border");
6843 staticpro (&Qborder
);
6844 Qmouse
= intern ("mouse");
6845 staticpro (&Qmouse
);
6846 Qmode_line_inactive
= intern ("mode-line-inactive");
6847 staticpro (&Qmode_line_inactive
);
6848 Qvertical_border
= intern ("vertical-border");
6849 staticpro (&Qvertical_border
);
6850 Qtty_color_desc
= intern ("tty-color-desc");
6851 staticpro (&Qtty_color_desc
);
6852 Qtty_color_standard_values
= intern ("tty-color-standard-values");
6853 staticpro (&Qtty_color_standard_values
);
6854 Qtty_color_by_index
= intern ("tty-color-by-index");
6855 staticpro (&Qtty_color_by_index
);
6856 Qtty_color_alist
= intern ("tty-color-alist");
6857 staticpro (&Qtty_color_alist
);
6858 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
6859 staticpro (&Qscalable_fonts_allowed
);
6861 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6862 staticpro (&Vparam_value_alist
);
6863 Vface_alternative_font_family_alist
= Qnil
;
6864 staticpro (&Vface_alternative_font_family_alist
);
6865 Vface_alternative_font_registry_alist
= Qnil
;
6866 staticpro (&Vface_alternative_font_registry_alist
);
6868 defsubr (&Sinternal_make_lisp_face
);
6869 defsubr (&Sinternal_lisp_face_p
);
6870 defsubr (&Sinternal_set_lisp_face_attribute
);
6871 #ifdef HAVE_WINDOW_SYSTEM
6872 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6874 defsubr (&Scolor_gray_p
);
6875 defsubr (&Scolor_supported_p
);
6876 #ifndef HAVE_X_WINDOWS
6877 defsubr (&Sx_load_color_file
);
6879 defsubr (&Sface_attribute_relative_p
);
6880 defsubr (&Smerge_face_attribute
);
6881 defsubr (&Sinternal_get_lisp_face_attribute
);
6882 defsubr (&Sinternal_lisp_face_attribute_values
);
6883 defsubr (&Sinternal_lisp_face_equal_p
);
6884 defsubr (&Sinternal_lisp_face_empty_p
);
6885 defsubr (&Sinternal_copy_lisp_face
);
6886 defsubr (&Sinternal_merge_in_global_face
);
6887 defsubr (&Sface_font
);
6888 defsubr (&Sframe_face_alist
);
6889 defsubr (&Sdisplay_supports_face_attributes_p
);
6890 defsubr (&Scolor_distance
);
6891 defsubr (&Sinternal_set_font_selection_order
);
6892 defsubr (&Sinternal_set_alternative_font_family_alist
);
6893 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6894 defsubr (&Sface_attributes_as_vector
);
6896 defsubr (&Sdump_face
);
6897 defsubr (&Sshow_face_resources
);
6898 #endif /* GLYPH_DEBUG */
6899 defsubr (&Sclear_face_cache
);
6900 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6902 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6903 defsubr (&Sdump_colors
);
6906 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6907 doc
: /* *Limit for font matching.
6908 If an integer > 0, font matching functions won't load more than
6909 that number of fonts when searching for a matching font. */);
6910 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6912 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6913 doc
: /* List of global face definitions (for internal use only.) */);
6914 Vface_new_frame_defaults
= Qnil
;
6916 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6917 doc
: /* *Default stipple pattern used on monochrome displays.
6918 This stipple pattern is used on monochrome displays
6919 instead of shades of gray for a face background color.
6920 See `set-face-stipple' for possible values for this variable. */);
6921 Vface_default_stipple
= build_string ("gray3");
6923 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
6924 doc
: /* An alist of defined terminal colors and their RGB values. */);
6925 Vtty_defined_color_alist
= Qnil
;
6927 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6928 doc
: /* Allowed scalable fonts.
6929 A value of nil means don't allow any scalable fonts.
6930 A value of t means allow any scalable font.
6931 Otherwise, value must be a list of regular expressions. A font may be
6932 scaled if its name matches a regular expression in the list.
6933 Note that if value is nil, a scalable font might still be used, if no
6934 other font of the appropriate family and registry is available. */);
6935 Vscalable_fonts_allowed
= Qnil
;
6937 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
6938 doc
: /* List of ignored fonts.
6939 Each element is a regular expression that matches names of fonts to
6941 Vface_ignored_fonts
= Qnil
;
6943 DEFVAR_LISP ("face-remapping-alist", &Vface_remapping_alist
,
6944 doc
: /* Alist of face remappings.
6945 Each element is of the form:
6947 (FACE REPLACEMENT...),
6949 which causes display of the face FACE to use REPLACEMENT... instead.
6950 REPLACEMENT... is interpreted the same way the value of a `face' text
6951 property is: it may be (1) A face name, (2) A list of face names, (3) A
6952 property-list of face attribute/value pairs, or (4) A list of face names
6953 intermixed with lists containing face attribute/value pairs.
6955 Multiple entries in REPLACEMENT... are merged together to form the final
6956 result, with faces or attributes earlier in the list taking precedence
6957 over those that are later.
6959 Face-name remapping cycles are suppressed; recursive references use the
6960 underlying face instead of the remapped face. So a remapping of the form:
6962 (FACE EXTRA-FACE... FACE)
6966 (FACE (FACE-ATTR VAL ...) FACE)
6968 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6969 existing definition of FACE. Note that for the default face, this isn't
6970 necessary, as every face inherits from the default face.
6972 Making this variable buffer-local is a good way to allow buffer-specific
6973 face definitions. For instance, the mode my-mode could define a face
6974 `my-mode-default', and then in the mode setup function, do:
6976 (set (make-local-variable 'face-remapping-alist)
6977 '((default my-mode-default)))). */);
6978 Vface_remapping_alist
= Qnil
;
6980 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
6981 doc
: /* Alist of fonts vs the rescaling factors.
6982 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
6983 FONT-NAME-PATTERN is a regular expression matching a font name, and
6984 RESCALE-RATIO is a floating point number to specify how much larger
6985 \(or smaller) font we should use. For instance, if a face requests
6986 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6987 Vface_font_rescale_alist
= Qnil
;
6989 #ifdef HAVE_WINDOW_SYSTEM
6990 defsubr (&Sbitmap_spec_p
);
6991 defsubr (&Sx_list_fonts
);
6992 defsubr (&Sinternal_face_x_get_resource
);
6993 defsubr (&Sx_family_fonts
);
6994 defsubr (&Sx_font_family_list
);
6995 #endif /* HAVE_WINDOW_SYSTEM */
6998 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
6999 (do not change this comment) */