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 /* On Solaris 5.8, it's been reported that the `menu' face
3737 can be unspecified here, during startup. Why this
3738 happens remains unknown. -- cyd */
3739 && FONTP (LFACE_FONT (lface
))
3740 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3741 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3742 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3743 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3744 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3745 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3747 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3749 const char *suffix
= "List";
3752 #if defined HAVE_X_I18N
3754 const char *suffix
= "Set";
3756 const char *suffix
= "";
3763 #if defined HAVE_X_I18N
3764 extern char *xic_create_fontsetname
3765 P_ ((char *base_fontname
, Bool motif
));
3766 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3768 char *fontsetname
= (char *) SDATA (xlfd
);
3770 sprintf (line
, "%s.pane.menubar*font%s: %s",
3771 myname
, suffix
, fontsetname
);
3772 XrmPutLineResource (&rdb
, line
);
3773 sprintf (line
, "%s.%s*font%s: %s",
3774 myname
, popup_path
, suffix
, fontsetname
);
3775 XrmPutLineResource (&rdb
, line
);
3777 if (fontsetname
!= (char *) SDATA (xlfd
))
3778 xfree (fontsetname
);
3782 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3783 free_frame_menubar (f
);
3787 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3790 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3791 Sface_attribute_relative_p
,
3793 doc
: /* Check whether a face attribute value is relative.
3794 Specifically, this function returns t if the attribute ATTRIBUTE
3795 with the value VALUE is relative.
3797 A relative value is one that doesn't entirely override whatever is
3798 inherited from another face. For most possible attributes,
3799 the only relative value that users see is `unspecified'.
3800 However, for :height, floating point values are also relative. */)
3802 Lisp_Object attribute
, value
;
3804 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3806 else if (EQ (attribute
, QCheight
))
3807 return INTEGERP (value
) ? Qnil
: Qt
;
3812 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3814 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3815 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3816 the result will be absolute, otherwise it will be relative. */)
3817 (attribute
, value1
, value2
)
3818 Lisp_Object attribute
, value1
, value2
;
3820 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3822 else if (EQ (attribute
, QCheight
))
3823 return merge_face_heights (value1
, value2
, value1
);
3829 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3830 Sinternal_get_lisp_face_attribute
,
3832 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3833 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3834 face attribute name, signal an error.
3835 If the optional argument FRAME is given, report on face SYMBOL in that
3836 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3837 frames). If FRAME is omitted or nil, use the selected frame. */)
3838 (symbol
, keyword
, frame
)
3839 Lisp_Object symbol
, keyword
, frame
;
3841 Lisp_Object lface
, value
= Qnil
;
3843 CHECK_SYMBOL (symbol
);
3844 CHECK_SYMBOL (keyword
);
3847 lface
= lface_from_face_name (NULL
, symbol
, 1);
3851 frame
= selected_frame
;
3852 CHECK_LIVE_FRAME (frame
);
3853 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3856 if (EQ (keyword
, QCfamily
))
3857 value
= LFACE_FAMILY (lface
);
3858 else if (EQ (keyword
, QCfoundry
))
3859 value
= LFACE_FOUNDRY (lface
);
3860 else if (EQ (keyword
, QCheight
))
3861 value
= LFACE_HEIGHT (lface
);
3862 else if (EQ (keyword
, QCweight
))
3863 value
= LFACE_WEIGHT (lface
);
3864 else if (EQ (keyword
, QCslant
))
3865 value
= LFACE_SLANT (lface
);
3866 else if (EQ (keyword
, QCunderline
))
3867 value
= LFACE_UNDERLINE (lface
);
3868 else if (EQ (keyword
, QCoverline
))
3869 value
= LFACE_OVERLINE (lface
);
3870 else if (EQ (keyword
, QCstrike_through
))
3871 value
= LFACE_STRIKE_THROUGH (lface
);
3872 else if (EQ (keyword
, QCbox
))
3873 value
= LFACE_BOX (lface
);
3874 else if (EQ (keyword
, QCinverse_video
)
3875 || EQ (keyword
, QCreverse_video
))
3876 value
= LFACE_INVERSE (lface
);
3877 else if (EQ (keyword
, QCforeground
))
3878 value
= LFACE_FOREGROUND (lface
);
3879 else if (EQ (keyword
, QCbackground
))
3880 value
= LFACE_BACKGROUND (lface
);
3881 else if (EQ (keyword
, QCstipple
))
3882 value
= LFACE_STIPPLE (lface
);
3883 else if (EQ (keyword
, QCwidth
))
3884 value
= LFACE_SWIDTH (lface
);
3885 else if (EQ (keyword
, QCinherit
))
3886 value
= LFACE_INHERIT (lface
);
3887 else if (EQ (keyword
, QCfont
))
3888 value
= LFACE_FONT (lface
);
3889 else if (EQ (keyword
, QCfontset
))
3890 value
= LFACE_FONTSET (lface
);
3892 signal_error ("Invalid face attribute name", keyword
);
3894 if (IGNORE_DEFFACE_P (value
))
3895 return Qunspecified
;
3901 DEFUN ("internal-lisp-face-attribute-values",
3902 Finternal_lisp_face_attribute_values
,
3903 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3904 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3905 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3909 Lisp_Object result
= Qnil
;
3911 CHECK_SYMBOL (attr
);
3913 if (EQ (attr
, QCunderline
))
3914 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3915 else if (EQ (attr
, QCoverline
))
3916 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3917 else if (EQ (attr
, QCstrike_through
))
3918 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3919 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3920 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3926 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3927 Sinternal_merge_in_global_face
, 2, 2, 0,
3928 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3929 Default face attributes override any local face attributes. */)
3931 Lisp_Object face
, frame
;
3934 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3935 struct frame
*f
= XFRAME (frame
);
3937 CHECK_LIVE_FRAME (frame
);
3938 global_lface
= lface_from_face_name (NULL
, face
, 1);
3939 local_lface
= lface_from_face_name (f
, face
, 0);
3940 if (NILP (local_lface
))
3941 local_lface
= Finternal_make_lisp_face (face
, frame
);
3943 /* Make every specified global attribute override the local one.
3944 BEWARE!! This is only used from `face-set-after-frame-default' where
3945 the local frame is defined from default specs in `face-defface-spec'
3946 and those should be overridden by global settings. Hence the strange
3947 "global before local" priority. */
3948 lvec
= XVECTOR (local_lface
)->contents
;
3949 gvec
= XVECTOR (global_lface
)->contents
;
3950 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3951 if (IGNORE_DEFFACE_P (gvec
[i
]))
3952 lvec
[i
] = Qunspecified
;
3953 else if (! UNSPECIFIEDP (gvec
[i
]))
3956 /* If the default face was changed, update the face cache and the
3957 `font' frame parameter. */
3958 if (EQ (face
, Qdefault
))
3960 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3961 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3962 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3964 /* This can be NULL (e.g., in batch mode). */
3967 /* Ensure that the face vector is fully specified by merging
3968 the previously-cached vector. */
3969 bcopy (oldface
->lface
, attrs
, sizeof attrs
);
3970 merge_face_vectors (f
, lvec
, attrs
, 0);
3971 bcopy (attrs
, lvec
, sizeof attrs
);
3972 newface
= realize_face (c
, lvec
, DEFAULT_FACE_ID
);
3974 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3975 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3976 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3977 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3978 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3979 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3980 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3983 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3984 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
3994 /* The following function is implemented for compatibility with 20.2.
3995 The function is used in x-resolve-fonts when it is asked to
3996 return fonts with the same size as the font of a face. This is
3997 done in fontset.el. */
3999 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
4000 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4001 The font name is, by default, for ASCII characters.
4002 If the optional argument FRAME is given, report on face FACE in that frame.
4003 If FRAME is t, report on the defaults for face FACE (for new frames).
4004 The font default for a face is either nil, or a list
4005 of the form (bold), (italic) or (bold italic).
4006 If FRAME is omitted or nil, use the selected frame. And, in this case,
4007 if the optional third argument CHARACTER is given,
4008 return the font name used for CHARACTER. */)
4009 (face
, frame
, character
)
4010 Lisp_Object face
, frame
, character
;
4014 Lisp_Object result
= Qnil
;
4015 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4017 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4018 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4019 result
= Fcons (Qbold
, result
);
4021 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4022 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4023 result
= Fcons (Qitalic
, result
);
4029 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4030 int face_id
= lookup_named_face (f
, face
, 1);
4031 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4035 #ifdef HAVE_WINDOW_SYSTEM
4036 if (FRAME_WINDOW_P (f
) && !NILP (character
))
4038 CHECK_CHARACTER (character
);
4039 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
4040 face
= FACE_FROM_ID (f
, face_id
);
4043 ? face
->font
->props
[FONT_NAME_INDEX
]
4045 #else /* !HAVE_WINDOW_SYSTEM */
4046 return build_string (FRAME_MSDOS_P (f
)
4048 : FRAME_W32_P (f
) ? "w32term"
4055 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4056 all attributes are `equal'. Tries to be fast because this function
4057 is called quite often. */
4060 face_attr_equal_p (v1
, v2
)
4063 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4064 and the other is specified. */
4065 if (XTYPE (v1
) != XTYPE (v2
))
4074 if (SBYTES (v1
) != SBYTES (v2
))
4077 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4084 return !NILP (Fequal (v1
, v2
));
4089 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4090 all attributes are `equal'. Tries to be fast because this function
4091 is called quite often. */
4094 lface_equal_p (v1
, v2
)
4095 Lisp_Object
*v1
, *v2
;
4099 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4100 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4106 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4107 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4108 doc
: /* True if FACE1 and FACE2 are equal.
4109 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4110 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4111 If FRAME is omitted or nil, use the selected frame. */)
4112 (face1
, face2
, frame
)
4113 Lisp_Object face1
, face2
, frame
;
4117 Lisp_Object lface1
, lface2
;
4122 /* Don't use check_x_frame here because this function is called
4123 before X frames exist. At that time, if FRAME is nil,
4124 selected_frame will be used which is the frame dumped with
4125 Emacs. That frame is not an X frame. */
4126 f
= frame_or_selected_frame (frame
, 2);
4128 lface1
= lface_from_face_name (f
, face1
, 1);
4129 lface2
= lface_from_face_name (f
, face2
, 1);
4130 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4131 XVECTOR (lface2
)->contents
);
4132 return equal_p
? Qt
: Qnil
;
4136 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4137 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4138 doc
: /* True if FACE has no attribute specified.
4139 If the optional argument FRAME is given, report on face FACE in that frame.
4140 If FRAME is t, report on the defaults for face FACE (for new frames).
4141 If FRAME is omitted or nil, use the selected frame. */)
4143 Lisp_Object face
, frame
;
4150 frame
= selected_frame
;
4151 CHECK_LIVE_FRAME (frame
);
4155 lface
= lface_from_face_name (NULL
, face
, 1);
4157 lface
= lface_from_face_name (f
, face
, 1);
4159 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4160 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4163 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4167 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4169 doc
: /* Return an alist of frame-local faces defined on FRAME.
4170 For internal use only. */)
4174 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4175 return f
->face_alist
;
4179 /* Return a hash code for Lisp string STRING with case ignored. Used
4180 below in computing a hash value for a Lisp face. */
4182 static INLINE
unsigned
4183 hash_string_case_insensitive (string
)
4186 const unsigned char *s
;
4188 xassert (STRINGP (string
));
4189 for (s
= SDATA (string
); *s
; ++s
)
4190 hash
= (hash
<< 1) ^ tolower (*s
);
4195 /* Return a hash code for face attribute vector V. */
4197 static INLINE
unsigned
4201 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4202 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4203 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4204 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4205 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4206 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4207 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4208 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4212 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4213 considering charsets/registries). They do if they specify the same
4214 family, point size, weight, width, slant, and font. Both
4215 LFACE1 and LFACE2 must be fully-specified. */
4218 lface_same_font_attributes_p (lface1
, lface2
)
4219 Lisp_Object
*lface1
, *lface2
;
4221 xassert (lface_fully_specified_p (lface1
)
4222 && lface_fully_specified_p (lface2
));
4223 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4224 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4225 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4226 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4227 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4228 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4229 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4230 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4231 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4232 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4233 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4234 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4235 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4236 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4242 /***********************************************************************
4244 ***********************************************************************/
4246 /* Allocate and return a new realized face for Lisp face attribute
4249 static struct face
*
4250 make_realized_face (attr
)
4253 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4254 bzero (face
, sizeof *face
);
4255 face
->ascii_face
= face
;
4256 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4261 /* Free realized face FACE, including its X resources. FACE may
4265 free_realized_face (f
, face
)
4271 #ifdef HAVE_WINDOW_SYSTEM
4272 if (FRAME_WINDOW_P (f
))
4274 /* Free fontset of FACE if it is ASCII face. */
4275 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4276 free_face_fontset (f
, face
);
4281 font_done_for_face (f
, face
);
4282 x_free_gc (f
, face
->gc
);
4287 free_face_colors (f
, face
);
4288 x_destroy_bitmap (f
, face
->stipple
);
4290 #endif /* HAVE_WINDOW_SYSTEM */
4297 /* Prepare face FACE for subsequent display on frame F. This
4298 allocated GCs if they haven't been allocated yet or have been freed
4299 by clearing the face cache. */
4302 prepare_face_for_display (f
, face
)
4306 #ifdef HAVE_WINDOW_SYSTEM
4307 xassert (FRAME_WINDOW_P (f
));
4312 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4314 xgcv
.foreground
= face
->foreground
;
4315 xgcv
.background
= face
->background
;
4316 #ifdef HAVE_X_WINDOWS
4317 xgcv
.graphics_exposures
= False
;
4321 #ifdef HAVE_X_WINDOWS
4324 xgcv
.fill_style
= FillOpaqueStippled
;
4325 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4326 mask
|= GCFillStyle
| GCStipple
;
4329 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4331 font_prepare_for_face (f
, face
);
4334 #endif /* HAVE_WINDOW_SYSTEM */
4338 /* Returns the `distance' between the colors X and Y. */
4341 color_distance (x
, y
)
4344 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4345 Quoting from that paper:
4347 This formula has results that are very close to L*u*v* (with the
4348 modified lightness curve) and, more importantly, it is a more even
4349 algorithm: it does not have a range of colours where it suddenly
4350 gives far from optimal results.
4352 See <http://www.compuphase.com/cmetric.htm> for more info. */
4354 long r
= (x
->red
- y
->red
) >> 8;
4355 long g
= (x
->green
- y
->green
) >> 8;
4356 long b
= (x
->blue
- y
->blue
) >> 8;
4357 long r_mean
= (x
->red
+ y
->red
) >> 9;
4360 (((512 + r_mean
) * r
* r
) >> 8)
4362 + (((767 - r_mean
) * b
* b
) >> 8);
4366 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4367 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4368 COLOR1 and COLOR2 may be either strings containing the color name,
4369 or lists of the form (RED GREEN BLUE).
4370 If FRAME is unspecified or nil, the current frame is used. */)
4371 (color1
, color2
, frame
)
4372 Lisp_Object color1
, color2
, frame
;
4375 XColor cdef1
, cdef2
;
4378 frame
= selected_frame
;
4379 CHECK_LIVE_FRAME (frame
);
4382 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4383 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4384 signal_error ("Invalid color", color1
);
4385 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4386 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4387 signal_error ("Invalid color", color2
);
4389 return make_number (color_distance (&cdef1
, &cdef2
));
4393 /***********************************************************************
4395 ***********************************************************************/
4397 /* Return a new face cache for frame F. */
4399 static struct face_cache
*
4403 struct face_cache
*c
;
4406 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4407 bzero (c
, sizeof *c
);
4408 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4409 c
->buckets
= (struct face
**) xmalloc (size
);
4410 bzero (c
->buckets
, size
);
4412 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4414 c
->menu_face_changed_p
= menu_face_changed_default
;
4419 /* Clear out all graphics contexts for all realized faces, except for
4420 the basic faces. This should be done from time to time just to avoid
4421 keeping too many graphics contexts that are no longer needed. */
4425 struct face_cache
*c
;
4427 if (c
&& FRAME_WINDOW_P (c
->f
))
4429 #ifdef HAVE_WINDOW_SYSTEM
4431 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4433 struct face
*face
= c
->faces_by_id
[i
];
4434 if (face
&& face
->gc
)
4438 font_done_for_face (c
->f
, face
);
4439 x_free_gc (c
->f
, face
->gc
);
4444 #endif /* HAVE_WINDOW_SYSTEM */
4449 /* Free all realized faces in face cache C, including basic faces.
4450 C may be null. If faces are freed, make sure the frame's current
4451 matrix is marked invalid, so that a display caused by an expose
4452 event doesn't try to use faces we destroyed. */
4455 free_realized_faces (c
)
4456 struct face_cache
*c
;
4461 struct frame
*f
= c
->f
;
4463 /* We must block input here because we can't process X events
4464 safely while only some faces are freed, or when the frame's
4465 current matrix still references freed faces. */
4468 for (i
= 0; i
< c
->used
; ++i
)
4470 free_realized_face (f
, c
->faces_by_id
[i
]);
4471 c
->faces_by_id
[i
] = NULL
;
4475 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4476 bzero (c
->buckets
, size
);
4478 /* Must do a thorough redisplay the next time. Mark current
4479 matrices as invalid because they will reference faces freed
4480 above. This function is also called when a frame is
4481 destroyed. In this case, the root window of F is nil. */
4482 if (WINDOWP (f
->root_window
))
4484 clear_current_matrices (f
);
4485 ++windows_or_buffers_changed
;
4493 /* Free all realized faces that are using FONTSET on frame F. */
4496 free_realized_faces_for_fontset (f
, fontset
)
4500 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4504 /* We must block input here because we can't process X events safely
4505 while only some faces are freed, or when the frame's current
4506 matrix still references freed faces. */
4509 for (i
= 0; i
< cache
->used
; i
++)
4511 face
= cache
->faces_by_id
[i
];
4513 && face
->fontset
== fontset
)
4515 uncache_face (cache
, face
);
4516 free_realized_face (f
, face
);
4520 /* Must do a thorough redisplay the next time. Mark current
4521 matrices as invalid because they will reference faces freed
4522 above. This function is also called when a frame is destroyed.
4523 In this case, the root window of F is nil. */
4524 if (WINDOWP (f
->root_window
))
4526 clear_current_matrices (f
);
4527 ++windows_or_buffers_changed
;
4534 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4535 This is done after attributes of a named face have been changed,
4536 because we can't tell which realized faces depend on that face. */
4539 free_all_realized_faces (frame
)
4545 FOR_EACH_FRAME (rest
, frame
)
4546 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4549 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4553 /* Free face cache C and faces in it, including their X resources. */
4557 struct face_cache
*c
;
4561 free_realized_faces (c
);
4563 xfree (c
->faces_by_id
);
4569 /* Cache realized face FACE in face cache C. HASH is the hash value
4570 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4571 FACE), insert the new face to the beginning of the collision list
4572 of the face hash table of C. Otherwise, add the new face to the
4573 end of the collision list. This way, lookup_face can quickly find
4574 that a requested face is not cached. */
4577 cache_face (c
, face
, hash
)
4578 struct face_cache
*c
;
4582 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4586 if (face
->ascii_face
!= face
)
4588 struct face
*last
= c
->buckets
[i
];
4599 c
->buckets
[i
] = face
;
4600 face
->prev
= face
->next
= NULL
;
4606 face
->next
= c
->buckets
[i
];
4608 face
->next
->prev
= face
;
4609 c
->buckets
[i
] = face
;
4612 /* Find a free slot in C->faces_by_id and use the index of the free
4613 slot as FACE->id. */
4614 for (i
= 0; i
< c
->used
; ++i
)
4615 if (c
->faces_by_id
[i
] == NULL
)
4619 /* Maybe enlarge C->faces_by_id. */
4622 if (c
->used
== c
->size
)
4625 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4626 if (new_size
== c
->size
)
4627 abort (); /* Alternatives? ++kfs */
4628 sz
= new_size
* sizeof *c
->faces_by_id
;
4629 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4636 /* Check that FACE got a unique id. */
4641 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4642 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4648 #endif /* GLYPH_DEBUG */
4650 c
->faces_by_id
[i
] = face
;
4654 /* Remove face FACE from cache C. */
4657 uncache_face (c
, face
)
4658 struct face_cache
*c
;
4661 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4664 face
->prev
->next
= face
->next
;
4666 c
->buckets
[i
] = face
->next
;
4669 face
->next
->prev
= face
->prev
;
4671 c
->faces_by_id
[face
->id
] = NULL
;
4672 if (face
->id
== c
->used
)
4677 /* Look up a realized face with face attributes ATTR in the face cache
4678 of frame F. The face will be used to display ASCII characters.
4679 Value is the ID of the face found. If no suitable face is found,
4680 realize a new one. */
4683 lookup_face (f
, attr
)
4687 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4692 xassert (cache
!= NULL
);
4693 check_lface_attrs (attr
);
4695 /* Look up ATTR in the face cache. */
4696 hash
= lface_hash (attr
);
4697 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4699 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4701 if (face
->ascii_face
!= face
)
4703 /* There's no more ASCII face. */
4707 if (face
->hash
== hash
4708 && lface_equal_p (face
->lface
, attr
))
4712 /* If not found, realize a new face. */
4714 face
= realize_face (cache
, attr
, -1);
4717 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4718 #endif /* GLYPH_DEBUG */
4723 #ifdef HAVE_WINDOW_SYSTEM
4724 /* Look up a realized face that has the same attributes as BASE_FACE
4725 except for the font in the face cache of frame F. If FONT-OBJECT
4726 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4727 the face has no font. Value is the ID of the face found. If no
4728 suitable face is found, realize a new one. */
4731 face_for_font (f
, font_object
, base_face
)
4733 Lisp_Object font_object
;
4734 struct face
*base_face
;
4736 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4741 xassert (cache
!= NULL
);
4742 base_face
= base_face
->ascii_face
;
4743 hash
= lface_hash (base_face
->lface
);
4744 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4746 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4748 if (face
->ascii_face
== face
)
4750 if (face
->ascii_face
== base_face
4751 && face
->font
== (NILP (font_object
) ? NULL
4752 : XFONT_OBJECT (font_object
))
4753 && lface_equal_p (face
->lface
, base_face
->lface
))
4757 /* If not found, realize a new face. */
4758 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4761 #endif /* HAVE_WINDOW_SYSTEM */
4763 /* Return the face id of the realized face for named face SYMBOL on
4764 frame F suitable for displaying ASCII characters. Value is -1 if
4765 the face couldn't be determined, which might happen if the default
4766 face isn't realized and cannot be realized. */
4769 lookup_named_face (f
, symbol
, signal_p
)
4774 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4775 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4776 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4778 if (default_face
== NULL
)
4780 if (!realize_basic_faces (f
))
4782 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4783 if (default_face
== NULL
)
4784 abort (); /* realize_basic_faces must have set it up */
4787 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4790 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4791 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4793 return lookup_face (f
, attrs
);
4797 /* Return the display face-id of the basic face who's canonical face-id
4798 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4799 basic face has bee remapped via Vface_remapping_alist. This function is
4800 conservative: if something goes wrong, it will simply return FACE_ID
4801 rather than signal an error. */
4804 lookup_basic_face (f
, face_id
)
4808 Lisp_Object name
, mapping
;
4809 int remapped_face_id
;
4811 if (NILP (Vface_remapping_alist
))
4812 return face_id
; /* Nothing to do. */
4816 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4817 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4818 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4819 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4820 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4821 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4822 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4823 case BORDER_FACE_ID
: name
= Qborder
; break;
4824 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4825 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4826 case MENU_FACE_ID
: name
= Qmenu
; break;
4829 abort (); /* the caller is supposed to pass us a basic face id */
4832 /* Do a quick scan through Vface_remapping_alist, and return immediately
4833 if there is no remapping for face NAME. This is just an optimization
4834 for the very common no-remapping case. */
4835 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4837 return face_id
; /* Give up. */
4839 /* If there is a remapping entry, lookup the face using NAME, which will
4840 handle the remapping too. */
4841 remapped_face_id
= lookup_named_face (f
, name
, 0);
4842 if (remapped_face_id
< 0)
4843 return face_id
; /* Give up. */
4845 return remapped_face_id
;
4849 /* Return the ID of the realized ASCII face of Lisp face with ID
4850 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4853 ascii_face_of_lisp_face (f
, lface_id
)
4859 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4861 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4862 face_id
= lookup_named_face (f
, face_name
, 1);
4871 /* Return a face for charset ASCII that is like the face with id
4872 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4873 STEPS < 0 means larger. Value is the id of the face. */
4876 smaller_face (f
, face_id
, steps
)
4880 #ifdef HAVE_WINDOW_SYSTEM
4882 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4883 int pt
, last_pt
, last_height
;
4886 struct face
*new_face
;
4888 /* If not called for an X frame, just return the original face. */
4889 if (FRAME_TERMCAP_P (f
))
4892 /* Try in increments of 1/2 pt. */
4893 delta
= steps
< 0 ? 5 : -5;
4894 steps
= eabs (steps
);
4896 face
= FACE_FROM_ID (f
, face_id
);
4897 bcopy (face
->lface
, attrs
, sizeof attrs
);
4898 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4899 new_face_id
= face_id
;
4900 last_height
= FONT_HEIGHT (face
->font
);
4904 /* Give up if we cannot find a font within 10pt. */
4905 && eabs (last_pt
- pt
) < 100)
4907 /* Look up a face for a slightly smaller/larger font. */
4909 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4910 new_face_id
= lookup_face (f
, attrs
);
4911 new_face
= FACE_FROM_ID (f
, new_face_id
);
4913 /* If height changes, count that as one step. */
4914 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4915 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4918 last_height
= FONT_HEIGHT (new_face
->font
);
4925 #else /* not HAVE_WINDOW_SYSTEM */
4929 #endif /* not HAVE_WINDOW_SYSTEM */
4933 /* Return a face for charset ASCII that is like the face with id
4934 FACE_ID on frame F, but has height HEIGHT. */
4937 face_with_height (f
, face_id
, height
)
4942 #ifdef HAVE_WINDOW_SYSTEM
4944 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4946 if (FRAME_TERMCAP_P (f
)
4950 face
= FACE_FROM_ID (f
, face_id
);
4951 bcopy (face
->lface
, attrs
, sizeof attrs
);
4952 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4953 face_id
= lookup_face (f
, attrs
);
4954 #endif /* HAVE_WINDOW_SYSTEM */
4960 /* Return the face id of the realized face for named face SYMBOL on
4961 frame F suitable for displaying ASCII characters, and use
4962 attributes of the face FACE_ID for attributes that aren't
4963 completely specified by SYMBOL. This is like lookup_named_face,
4964 except that the default attributes come from FACE_ID, not from the
4965 default face. FACE_ID is assumed to be already realized. */
4968 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
4974 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4975 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4976 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4981 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4984 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4985 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4986 return lookup_face (f
, attrs
);
4989 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4990 Sface_attributes_as_vector
, 1, 1, 0,
4991 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4996 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4998 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5005 /***********************************************************************
5006 Face capability testing
5007 ***********************************************************************/
5010 /* If the distance (as returned by color_distance) between two colors is
5011 less than this, then they are considered the same, for determining
5012 whether a color is supported or not. The range of values is 0-65535. */
5014 #define TTY_SAME_COLOR_THRESHOLD 10000
5016 #ifdef HAVE_WINDOW_SYSTEM
5018 /* Return non-zero if all the face attributes in ATTRS are supported
5019 on the window-system frame F.
5021 The definition of `supported' is somewhat heuristic, but basically means
5022 that a face containing all the attributes in ATTRS, when merged with the
5023 default face for display, can be represented in a way that's
5025 \(1) different in appearance than the default face, and
5026 \(2) `close in spirit' to what the attributes specify, if not exact. */
5029 x_supports_face_attributes_p (f
, attrs
, def_face
)
5032 struct face
*def_face
;
5034 Lisp_Object
*def_attrs
= def_face
->lface
;
5036 /* Check that other specified attributes are different that the default
5038 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5039 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5040 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5041 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5042 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5043 def_attrs
[LFACE_INVERSE_INDEX
]))
5044 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5045 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5046 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5047 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5048 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5049 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5050 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5051 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5052 def_attrs
[LFACE_STIPPLE_INDEX
]))
5053 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5054 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5055 def_attrs
[LFACE_OVERLINE_INDEX
]))
5056 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5057 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5058 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5059 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5060 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5061 def_attrs
[LFACE_BOX_INDEX
])))
5064 /* Check font-related attributes, as those are the most commonly
5065 "unsupported" on a window-system (because of missing fonts). */
5066 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5067 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5068 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5069 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5070 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5071 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
5075 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5078 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5080 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5082 face_id
= lookup_face (f
, merged_attrs
);
5083 face
= FACE_FROM_ID (f
, face_id
);
5086 error ("Cannot make face");
5088 /* If the font is the same, or no font is found, then not
5090 if (face
->font
== def_face
->font
5093 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
5094 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
5098 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
5099 || face
->font
->driver
->case_sensitive
)
5101 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
5102 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
5103 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
5104 s2
, make_number (0), Qnil
, Qt
), Qt
))
5110 /* Everything checks out, this face is supported. */
5114 #endif /* HAVE_WINDOW_SYSTEM */
5116 /* Return non-zero if all the face attributes in ATTRS are supported
5119 The definition of `supported' is somewhat heuristic, but basically means
5120 that a face containing all the attributes in ATTRS, when merged
5121 with the default face for display, can be represented in a way that's
5123 \(1) different in appearance than the default face, and
5124 \(2) `close in spirit' to what the attributes specify, if not exact.
5126 Point (2) implies that a `:weight black' attribute will be satisfied
5127 by any terminal that can display bold, and a `:foreground "yellow"' as
5128 long as the terminal can display a yellowish color, but `:slant italic'
5129 will _not_ be satisfied by the tty display code's automatic
5130 substitution of a `dim' face for italic. */
5133 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5136 struct face
*def_face
;
5139 Lisp_Object val
, fg
, bg
;
5140 XColor fg_tty_color
, fg_std_color
;
5141 XColor bg_tty_color
, bg_std_color
;
5142 unsigned test_caps
= 0;
5143 Lisp_Object
*def_attrs
= def_face
->lface
;
5146 /* First check some easy-to-check stuff; ttys support none of the
5147 following attributes, so we can just return false if any are requested
5148 (even if `nominal' values are specified, we should still return false,
5149 as that will be the same value that the default face uses). We
5150 consider :slant unsupportable on ttys, even though the face code
5151 actually `fakes' them using a dim attribute if possible. This is
5152 because the faked result is too different from what the face
5154 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5155 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5156 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5157 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5158 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5159 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5160 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5161 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5162 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5166 /* Test for terminal `capabilities' (non-color character attributes). */
5168 /* font weight (bold/dim) */
5169 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5172 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
5176 if (def_weight
> 100)
5177 return 0; /* same as default */
5178 test_caps
= TTY_CAP_BOLD
;
5180 else if (weight
< 100)
5182 if (def_weight
< 100)
5183 return 0; /* same as default */
5184 test_caps
= TTY_CAP_DIM
;
5186 else if (def_weight
== 100)
5187 return 0; /* same as default */
5191 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5192 if (!UNSPECIFIEDP (val
))
5195 return 0; /* ttys can't use colored underlines */
5196 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5197 return 0; /* same as default */
5199 test_caps
|= TTY_CAP_UNDERLINE
;
5203 val
= attrs
[LFACE_INVERSE_INDEX
];
5204 if (!UNSPECIFIEDP (val
))
5206 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
5207 return 0; /* same as default */
5209 test_caps
|= TTY_CAP_INVERSE
;
5213 /* Color testing. */
5215 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5216 we use them when calling `tty_capable_p' below, even if the face
5217 specifies no colors. */
5218 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5219 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5221 /* Check if foreground color is close enough. */
5222 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5225 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5227 if (face_attr_equal_p (fg
, def_fg
))
5228 return 0; /* same as default */
5229 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5230 return 0; /* not a valid color */
5231 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5232 > TTY_SAME_COLOR_THRESHOLD
)
5233 return 0; /* displayed color is too different */
5235 /* Make sure the color is really different than the default. */
5237 XColor def_fg_color
;
5238 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5239 && (color_distance (&fg_tty_color
, &def_fg_color
)
5240 <= TTY_SAME_COLOR_THRESHOLD
))
5245 /* Check if background color is close enough. */
5246 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5249 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5251 if (face_attr_equal_p (bg
, def_bg
))
5252 return 0; /* same as default */
5253 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5254 return 0; /* not a valid color */
5255 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5256 > TTY_SAME_COLOR_THRESHOLD
)
5257 return 0; /* displayed color is too different */
5259 /* Make sure the color is really different than the default. */
5261 XColor def_bg_color
;
5262 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5263 && (color_distance (&bg_tty_color
, &def_bg_color
)
5264 <= TTY_SAME_COLOR_THRESHOLD
))
5269 /* If both foreground and background are requested, see if the
5270 distance between them is OK. We just check to see if the distance
5271 between the tty's foreground and background is close enough to the
5272 distance between the standard foreground and background. */
5273 if (STRINGP (fg
) && STRINGP (bg
))
5276 = (color_distance (&fg_std_color
, &bg_std_color
)
5277 - color_distance (&fg_tty_color
, &bg_tty_color
));
5278 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5279 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5284 /* See if the capabilities we selected above are supported, with the
5286 if (test_caps
!= 0 &&
5287 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5291 /* Hmmm, everything checks out, this terminal must support this face. */
5296 DEFUN ("display-supports-face-attributes-p",
5297 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5299 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5300 The optional argument DISPLAY can be a display name, a frame, or
5301 nil (meaning the selected frame's display).
5303 The definition of `supported' is somewhat heuristic, but basically means
5304 that a face containing all the attributes in ATTRIBUTES, when merged
5305 with the default face for display, can be represented in a way that's
5307 \(1) different in appearance than the default face, and
5308 \(2) `close in spirit' to what the attributes specify, if not exact.
5310 Point (2) implies that a `:weight black' attribute will be satisfied by
5311 any display that can display bold, and a `:foreground \"yellow\"' as long
5312 as it can display a yellowish color, but `:slant italic' will _not_ be
5313 satisfied by the tty display code's automatic substitution of a `dim'
5314 face for italic. */)
5315 (attributes
, display
)
5316 Lisp_Object attributes
, display
;
5318 int supports
= 0, i
;
5321 struct face
*def_face
;
5322 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5324 if (noninteractive
|| !initialized
)
5325 /* We may not be able to access low-level face information in batch
5326 mode, or before being dumped, and this function is not going to
5327 be very useful in those cases anyway, so just give up. */
5331 frame
= selected_frame
;
5332 else if (FRAMEP (display
))
5336 /* Find any frame on DISPLAY. */
5337 Lisp_Object fl_tail
;
5340 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5342 frame
= XCAR (fl_tail
);
5343 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5344 XFRAME (frame
)->param_alist
)),
5350 CHECK_LIVE_FRAME (frame
);
5353 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5354 attrs
[i
] = Qunspecified
;
5355 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5357 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5358 if (def_face
== NULL
)
5360 if (! realize_basic_faces (f
))
5361 error ("Cannot realize default face");
5362 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5363 if (def_face
== NULL
)
5364 abort (); /* realize_basic_faces must have set it up */
5367 /* Dispatch to the appropriate handler. */
5368 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5369 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5370 #ifdef HAVE_WINDOW_SYSTEM
5372 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5375 return supports
? Qt
: Qnil
;
5379 /***********************************************************************
5381 ***********************************************************************/
5383 DEFUN ("internal-set-font-selection-order",
5384 Finternal_set_font_selection_order
,
5385 Sinternal_set_font_selection_order
, 1, 1, 0,
5386 doc
: /* Set font selection order for face font selection to ORDER.
5387 ORDER must be a list of length 4 containing the symbols `:width',
5388 `:height', `:weight', and `:slant'. Face attributes appearing
5389 first in ORDER are matched first, e.g. if `:height' appears before
5390 `:weight' in ORDER, font selection first tries to find a font with
5391 a suitable height, and then tries to match the font weight.
5398 int indices
[DIM (font_sort_order
)];
5401 bzero (indices
, sizeof indices
);
5405 CONSP (list
) && i
< DIM (indices
);
5406 list
= XCDR (list
), ++i
)
5408 Lisp_Object attr
= XCAR (list
);
5411 if (EQ (attr
, QCwidth
))
5413 else if (EQ (attr
, QCheight
))
5414 xlfd
= XLFD_POINT_SIZE
;
5415 else if (EQ (attr
, QCweight
))
5417 else if (EQ (attr
, QCslant
))
5422 if (indices
[i
] != 0)
5427 if (!NILP (list
) || i
!= DIM (indices
))
5428 signal_error ("Invalid font sort order", order
);
5429 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5430 if (indices
[i
] == 0)
5431 signal_error ("Invalid font sort order", order
);
5433 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5435 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5436 free_all_realized_faces (Qnil
);
5439 font_update_sort_order (font_sort_order
);
5445 DEFUN ("internal-set-alternative-font-family-alist",
5446 Finternal_set_alternative_font_family_alist
,
5447 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5448 doc
: /* Define alternative font families to try in face font selection.
5449 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5450 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5451 be found. Value is ALIST. */)
5455 Lisp_Object entry
, tail
, tail2
;
5458 alist
= Fcopy_sequence (alist
);
5459 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5461 entry
= XCAR (tail
);
5463 entry
= Fcopy_sequence (entry
);
5464 XSETCAR (tail
, entry
);
5465 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5466 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5469 Vface_alternative_font_family_alist
= alist
;
5470 free_all_realized_faces (Qnil
);
5475 DEFUN ("internal-set-alternative-font-registry-alist",
5476 Finternal_set_alternative_font_registry_alist
,
5477 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5478 doc
: /* Define alternative font registries to try in face font selection.
5479 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5480 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5481 be found. Value is ALIST. */)
5485 Lisp_Object entry
, tail
, tail2
;
5488 alist
= Fcopy_sequence (alist
);
5489 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5491 entry
= XCAR (tail
);
5493 entry
= Fcopy_sequence (entry
);
5494 XSETCAR (tail
, entry
);
5495 for (tail2
= entry
; CONSP (tail2
); tail2
= XCDR (tail2
))
5496 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5498 Vface_alternative_font_registry_alist
= alist
;
5499 free_all_realized_faces (Qnil
);
5504 #ifdef HAVE_WINDOW_SYSTEM
5506 /* Ignore the difference of font point size less than this value. */
5508 #define FONT_POINT_SIZE_QUANTUM 5
5510 /* Return the fontset id of the base fontset name or alias name given
5511 by the fontset attribute of ATTRS. Value is -1 if the fontset
5512 attribute of ATTRS doesn't name a fontset. */
5515 face_fontset (attrs
)
5520 name
= attrs
[LFACE_FONTSET_INDEX
];
5521 if (!STRINGP (name
))
5523 return fs_query_fontset (name
, 0);
5526 #endif /* HAVE_WINDOW_SYSTEM */
5530 /***********************************************************************
5532 ***********************************************************************/
5534 /* Realize basic faces on frame F. Value is zero if frame parameters
5535 of F don't contain enough information needed to realize the default
5539 realize_basic_faces (f
)
5543 int count
= SPECPDL_INDEX ();
5545 /* Block input here so that we won't be surprised by an X expose
5546 event, for instance, without having the faces set up. */
5548 specbind (Qscalable_fonts_allowed
, Qt
);
5550 if (realize_default_face (f
))
5552 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5553 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5554 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5555 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5556 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5557 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5558 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5559 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5560 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5561 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5562 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5564 /* Reflect changes in the `menu' face in menu bars. */
5565 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5567 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5568 #ifdef USE_X_TOOLKIT
5569 if (FRAME_WINDOW_P (f
))
5570 x_update_menu_appearance (f
);
5577 unbind_to (count
, Qnil
);
5583 /* Realize the default face on frame F. If the face is not fully
5584 specified, make it fully-specified. Attributes of the default face
5585 that are not explicitly specified are taken from frame parameters. */
5588 realize_default_face (f
)
5591 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5593 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5596 /* If the `default' face is not yet known, create it. */
5597 lface
= lface_from_face_name (f
, Qdefault
, 0);
5601 XSETFRAME (frame
, f
);
5602 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5605 #ifdef HAVE_WINDOW_SYSTEM
5606 if (FRAME_WINDOW_P (f
))
5608 Lisp_Object font_object
;
5610 XSETFONT (font_object
, FRAME_FONT (f
));
5611 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5612 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5613 f
->default_face_done_p
= 1;
5615 #endif /* HAVE_WINDOW_SYSTEM */
5617 if (!FRAME_WINDOW_P (f
))
5619 LFACE_FAMILY (lface
) = build_string ("default");
5620 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5621 LFACE_SWIDTH (lface
) = Qnormal
;
5622 LFACE_HEIGHT (lface
) = make_number (1);
5623 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5624 LFACE_WEIGHT (lface
) = Qnormal
;
5625 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5626 LFACE_SLANT (lface
) = Qnormal
;
5627 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5628 LFACE_FONTSET (lface
) = Qnil
;
5631 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5632 LFACE_UNDERLINE (lface
) = Qnil
;
5634 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5635 LFACE_OVERLINE (lface
) = Qnil
;
5637 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5638 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5640 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5641 LFACE_BOX (lface
) = Qnil
;
5643 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5644 LFACE_INVERSE (lface
) = Qnil
;
5646 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5648 /* This function is called so early that colors are not yet
5649 set in the frame parameter list. */
5650 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5652 if (CONSP (color
) && STRINGP (XCDR (color
)))
5653 LFACE_FOREGROUND (lface
) = XCDR (color
);
5654 else if (FRAME_WINDOW_P (f
))
5656 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5657 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5662 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5664 /* This function is called so early that colors are not yet
5665 set in the frame parameter list. */
5666 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5667 if (CONSP (color
) && STRINGP (XCDR (color
)))
5668 LFACE_BACKGROUND (lface
) = XCDR (color
);
5669 else if (FRAME_WINDOW_P (f
))
5671 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5672 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5677 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5678 LFACE_STIPPLE (lface
) = Qnil
;
5680 /* Realize the face; it must be fully-specified now. */
5681 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5682 check_lface (lface
);
5683 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5684 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5686 #ifdef HAVE_WINDOW_SYSTEM
5687 #ifdef HAVE_X_WINDOWS
5688 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5690 /* This can happen when making a frame on a display that does
5691 not support the default font. */
5695 /* Otherwise, the font specified for the frame was not
5696 acceptable as a font for the default face (perhaps because
5697 auto-scaled fonts are rejected), so we must adjust the frame
5699 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5701 #endif /* HAVE_X_WINDOWS */
5702 #endif /* HAVE_WINDOW_SYSTEM */
5707 /* Realize basic faces other than the default face in face cache C.
5708 SYMBOL is the face name, ID is the face id the realized face must
5709 have. The default face must have been realized already. */
5712 realize_named_face (f
, symbol
, id
)
5717 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5718 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5719 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5720 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5721 struct face
*new_face
;
5723 /* The default face must exist and be fully specified. */
5724 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5725 check_lface_attrs (attrs
);
5726 xassert (lface_fully_specified_p (attrs
));
5728 /* If SYMBOL isn't know as a face, create it. */
5732 XSETFRAME (frame
, f
);
5733 lface
= Finternal_make_lisp_face (symbol
, frame
);
5736 /* Merge SYMBOL's face with the default face. */
5737 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5738 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5740 /* Realize the face. */
5741 new_face
= realize_face (c
, attrs
, id
);
5745 /* Realize the fully-specified face with attributes ATTRS in face
5746 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5747 non-negative, it is an ID of face to remove before caching the new
5748 face. Value is a pointer to the newly created realized face. */
5750 static struct face
*
5751 realize_face (cache
, attrs
, former_face_id
)
5752 struct face_cache
*cache
;
5758 /* LFACE must be fully specified. */
5759 xassert (cache
!= NULL
);
5760 check_lface_attrs (attrs
);
5762 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5764 /* Remove the former face. */
5765 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5766 uncache_face (cache
, former_face
);
5767 free_realized_face (cache
->f
, former_face
);
5770 if (FRAME_WINDOW_P (cache
->f
))
5771 face
= realize_x_face (cache
, attrs
);
5772 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5773 face
= realize_tty_face (cache
, attrs
);
5774 else if (FRAME_INITIAL_P (cache
->f
))
5776 /* Create a dummy face. */
5777 face
= make_realized_face (attrs
);
5782 /* Insert the new face. */
5783 cache_face (cache
, face
, lface_hash (attrs
));
5788 #ifdef HAVE_WINDOW_SYSTEM
5789 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5790 same attributes as BASE_FACE except for the font on frame F.
5791 FONT-OBJECT may be nil, in which case, realized a face of
5794 static struct face
*
5795 realize_non_ascii_face (f
, font_object
, base_face
)
5797 Lisp_Object font_object
;
5798 struct face
*base_face
;
5800 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5803 face
= (struct face
*) xmalloc (sizeof *face
);
5808 = (! NILP (font_object
)
5809 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5810 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5812 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5813 face
->colors_copied_bitwise_p
= 1;
5814 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5817 cache_face (cache
, face
, face
->hash
);
5821 #endif /* HAVE_WINDOW_SYSTEM */
5824 /* Realize the fully-specified face with attributes ATTRS in face
5825 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5826 the new face doesn't share font with the default face, a fontname
5827 is allocated from the heap and set in `font_name' of the new face,
5828 but it is not yet loaded here. Value is a pointer to the newly
5829 created realized face. */
5831 static struct face
*
5832 realize_x_face (cache
, attrs
)
5833 struct face_cache
*cache
;
5836 struct face
*face
= NULL
;
5837 #ifdef HAVE_WINDOW_SYSTEM
5838 struct face
*default_face
;
5840 Lisp_Object stipple
, overline
, strike_through
, box
;
5842 xassert (FRAME_WINDOW_P (cache
->f
));
5844 /* Allocate a new realized face. */
5845 face
= make_realized_face (attrs
);
5846 face
->ascii_face
= face
;
5850 /* Determine the font to use. Most of the time, the font will be
5851 the same as the font of the default face, so try that first. */
5852 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5854 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5856 face
->font
= default_face
->font
;
5858 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5862 /* If the face attribute ATTRS specifies a fontset, use it as
5863 the base of a new realized fontset. Otherwise, use the same
5864 base fontset as of the default face. The base determines
5865 registry and encoding of a font. It may also determine
5866 foundry and family. The other fields of font name pattern
5867 are constructed from ATTRS. */
5868 int fontset
= face_fontset (attrs
);
5870 /* If we are realizing the default face, ATTRS should specify a
5871 fontset. In other words, if FONTSET is -1, we are not
5872 realizing the default face, thus the default face should have
5873 already been realized. */
5875 fontset
= default_face
->fontset
;
5878 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5879 attrs
[LFACE_FONT_INDEX
]
5880 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5881 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5883 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5884 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5894 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5895 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5896 face
->overstrike
= 1;
5898 /* Load colors, and set remaining attributes. */
5900 load_face_colors (f
, face
, attrs
);
5903 box
= attrs
[LFACE_BOX_INDEX
];
5906 /* A simple box of line width 1 drawn in color given by
5908 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5910 face
->box
= FACE_SIMPLE_BOX
;
5911 face
->box_line_width
= 1;
5913 else if (INTEGERP (box
))
5915 /* Simple box of specified line width in foreground color of the
5917 xassert (XINT (box
) != 0);
5918 face
->box
= FACE_SIMPLE_BOX
;
5919 face
->box_line_width
= XINT (box
);
5920 face
->box_color
= face
->foreground
;
5921 face
->box_color_defaulted_p
= 1;
5923 else if (CONSP (box
))
5925 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5926 being one of `raised' or `sunken'. */
5927 face
->box
= FACE_SIMPLE_BOX
;
5928 face
->box_color
= face
->foreground
;
5929 face
->box_color_defaulted_p
= 1;
5930 face
->box_line_width
= 1;
5934 Lisp_Object keyword
, value
;
5936 keyword
= XCAR (box
);
5944 if (EQ (keyword
, QCline_width
))
5946 if (INTEGERP (value
) && XINT (value
) != 0)
5947 face
->box_line_width
= XINT (value
);
5949 else if (EQ (keyword
, QCcolor
))
5951 if (STRINGP (value
))
5953 face
->box_color
= load_color (f
, face
, value
,
5955 face
->use_box_color_for_shadows_p
= 1;
5958 else if (EQ (keyword
, QCstyle
))
5960 if (EQ (value
, Qreleased_button
))
5961 face
->box
= FACE_RAISED_BOX
;
5962 else if (EQ (value
, Qpressed_button
))
5963 face
->box
= FACE_SUNKEN_BOX
;
5968 /* Text underline, overline, strike-through. */
5970 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5972 /* Use default color (same as foreground color). */
5973 face
->underline_p
= 1;
5974 face
->underline_defaulted_p
= 1;
5975 face
->underline_color
= 0;
5977 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5979 /* Use specified color. */
5980 face
->underline_p
= 1;
5981 face
->underline_defaulted_p
= 0;
5982 face
->underline_color
5983 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5984 LFACE_UNDERLINE_INDEX
);
5986 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5988 face
->underline_p
= 0;
5989 face
->underline_defaulted_p
= 0;
5990 face
->underline_color
= 0;
5993 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5994 if (STRINGP (overline
))
5996 face
->overline_color
5997 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5998 LFACE_OVERLINE_INDEX
);
5999 face
->overline_p
= 1;
6001 else if (EQ (overline
, Qt
))
6003 face
->overline_color
= face
->foreground
;
6004 face
->overline_color_defaulted_p
= 1;
6005 face
->overline_p
= 1;
6008 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6009 if (STRINGP (strike_through
))
6011 face
->strike_through_color
6012 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6013 LFACE_STRIKE_THROUGH_INDEX
);
6014 face
->strike_through_p
= 1;
6016 else if (EQ (strike_through
, Qt
))
6018 face
->strike_through_color
= face
->foreground
;
6019 face
->strike_through_color_defaulted_p
= 1;
6020 face
->strike_through_p
= 1;
6023 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6024 if (!NILP (stipple
))
6025 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6026 #endif /* HAVE_WINDOW_SYSTEM */
6032 /* Map a specified color of face FACE on frame F to a tty color index.
6033 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6034 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6035 default foreground/background colors. */
6038 map_tty_color (f
, face
, idx
, defaulted
)
6041 enum lface_attribute_index idx
;
6044 Lisp_Object frame
, color
, def
;
6045 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6046 unsigned long default_pixel
, default_other_pixel
, pixel
;
6048 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6052 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6053 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6057 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6058 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6061 XSETFRAME (frame
, f
);
6062 color
= face
->lface
[idx
];
6066 && CONSP (Vtty_defined_color_alist
)
6067 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6070 /* Associations in tty-defined-color-alist are of the form
6071 (NAME INDEX R G B). We need the INDEX part. */
6072 pixel
= XINT (XCAR (XCDR (def
)));
6075 if (pixel
== default_pixel
&& STRINGP (color
))
6077 pixel
= load_color (f
, face
, color
, idx
);
6080 /* If the foreground of the default face is the default color,
6081 use the foreground color defined by the frame. */
6082 if (FRAME_MSDOS_P (f
))
6084 if (pixel
== default_pixel
6085 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6088 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6090 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6091 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6094 else if (pixel
== default_other_pixel
)
6097 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6099 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6100 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6108 face
->foreground
= pixel
;
6110 face
->background
= pixel
;
6114 /* Realize the fully-specified face with attributes ATTRS in face
6115 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
6116 Value is a pointer to the newly created realized face. */
6118 static struct face
*
6119 realize_tty_face (cache
, attrs
)
6120 struct face_cache
*cache
;
6125 int face_colors_defaulted
= 0;
6126 struct frame
*f
= cache
->f
;
6128 /* Frame must be a termcap frame. */
6129 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6131 /* Allocate a new realized face. */
6132 face
= make_realized_face (attrs
);
6134 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6137 /* Map face attributes to TTY appearances. We map slant to
6138 dimmed text because we want italic text to appear differently
6139 and because dimmed text is probably used infrequently. */
6140 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
6141 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
6143 face
->tty_bold_p
= 1;
6144 if (weight
< 100 || slant
!= 100)
6145 face
->tty_dim_p
= 1;
6146 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6147 face
->tty_underline_p
= 1;
6148 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6149 face
->tty_reverse_p
= 1;
6151 /* Map color names to color indices. */
6152 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6153 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6155 /* Swap colors if face is inverse-video. If the colors are taken
6156 from the frame colors, they are already inverted, since the
6157 frame-creation function calls x-handle-reverse-video. */
6158 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6160 unsigned long tem
= face
->foreground
;
6161 face
->foreground
= face
->background
;
6162 face
->background
= tem
;
6165 if (tty_suppress_bold_inverse_default_colors_p
6167 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6168 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6169 face
->tty_bold_p
= 0;
6175 DEFUN ("tty-suppress-bold-inverse-default-colors",
6176 Ftty_suppress_bold_inverse_default_colors
,
6177 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6178 doc
: /* Suppress/allow boldness of faces with inverse default colors.
6179 SUPPRESS non-nil means suppress it.
6180 This affects bold faces on TTYs whose foreground is the default background
6181 color of the display and whose background is the default foreground color.
6182 For such faces, the bold face attribute is ignored if this variable
6185 Lisp_Object suppress
;
6187 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6188 ++face_change_count
;
6194 /***********************************************************************
6196 ***********************************************************************/
6198 /* Return the ID of the face to use to display character CH with face
6199 property PROP on frame F in current_buffer. */
6202 compute_char_face (f
, ch
, prop
)
6209 if (NILP (current_buffer
->enable_multibyte_characters
))
6214 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6215 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6219 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6220 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6221 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6222 merge_face_ref (f
, prop
, attrs
, 1, 0);
6223 face_id
= lookup_face (f
, attrs
);
6229 /* Return the face ID associated with buffer position POS for
6230 displaying ASCII characters. Return in *ENDPTR the position at
6231 which a different face is needed, as far as text properties and
6232 overlays are concerned. W is a window displaying current_buffer.
6234 REGION_BEG, REGION_END delimit the region, so it can be
6237 LIMIT is a position not to scan beyond. That is to limit the time
6238 this function can take.
6240 If MOUSE is non-zero, use the character's mouse-face, not its face.
6242 The face returned is suitable for displaying ASCII characters. */
6245 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6246 endptr
, limit
, mouse
)
6249 EMACS_INT region_beg
, region_end
;
6254 struct frame
*f
= XFRAME (w
->frame
);
6255 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6256 Lisp_Object prop
, position
;
6258 Lisp_Object
*overlay_vec
;
6261 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6262 Lisp_Object limit1
, end
;
6263 struct face
*default_face
;
6265 /* W must display the current buffer. We could write this function
6266 to use the frame and buffer of W, but right now it doesn't. */
6267 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6269 XSETFRAME (frame
, f
);
6270 XSETFASTINT (position
, pos
);
6273 if (pos
< region_beg
&& region_beg
< endpos
)
6274 endpos
= region_beg
;
6276 /* Get the `face' or `mouse_face' text property at POS, and
6277 determine the next position at which the property changes. */
6278 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6279 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6280 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6282 endpos
= XINT (end
);
6284 /* Look at properties from overlays. */
6286 EMACS_INT next_overlay
;
6288 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6289 if (next_overlay
< endpos
)
6290 endpos
= next_overlay
;
6296 /* Perhaps remap BASE_FACE_ID to a user-specified alternative. */
6297 if (NILP (Vface_remapping_alist
))
6298 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6300 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6302 /* Optimize common cases where we can use the default face. */
6305 && !(pos
>= region_beg
&& pos
< region_end
))
6306 return default_face
->id
;
6308 /* Begin with attributes from the default face. */
6309 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6311 /* Merge in attributes specified via text properties. */
6313 merge_face_ref (f
, prop
, attrs
, 1, 0);
6315 /* Now merge the overlay data. */
6316 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6317 for (i
= 0; i
< noverlays
; i
++)
6322 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6324 merge_face_ref (f
, prop
, attrs
, 1, 0);
6326 oend
= OVERLAY_END (overlay_vec
[i
]);
6327 oendpos
= OVERLAY_POSITION (oend
);
6328 if (oendpos
< endpos
)
6332 /* If in the region, merge in the region face. */
6333 if (pos
>= region_beg
&& pos
< region_end
)
6335 merge_named_face (f
, Qregion
, attrs
, 0);
6337 if (region_end
< endpos
)
6338 endpos
= region_end
;
6343 /* Look up a realized face with the given face attributes,
6344 or realize a new one for ASCII characters. */
6345 return lookup_face (f
, attrs
);
6348 /* Return the face ID at buffer position POS for displaying ASCII
6349 characters associated with overlay strings for overlay OVERLAY.
6351 Like face_at_buffer_position except for OVERLAY. Currently it
6352 simply disregards the `face' properties of all overlays. */
6355 face_for_overlay_string (w
, pos
, region_beg
, region_end
,
6356 endptr
, limit
, mouse
, overlay
)
6359 EMACS_INT region_beg
, region_end
;
6363 Lisp_Object overlay
;
6365 struct frame
*f
= XFRAME (w
->frame
);
6366 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6367 Lisp_Object prop
, position
;
6370 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6371 Lisp_Object limit1
, end
;
6372 struct face
*default_face
;
6374 /* W must display the current buffer. We could write this function
6375 to use the frame and buffer of W, but right now it doesn't. */
6376 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6378 XSETFRAME (frame
, f
);
6379 XSETFASTINT (position
, pos
);
6382 if (pos
< region_beg
&& region_beg
< endpos
)
6383 endpos
= region_beg
;
6385 /* Get the `face' or `mouse_face' text property at POS, and
6386 determine the next position at which the property changes. */
6387 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6388 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6389 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6391 endpos
= XINT (end
);
6395 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6397 /* Optimize common cases where we can use the default face. */
6399 && !(pos
>= region_beg
&& pos
< region_end
))
6400 return DEFAULT_FACE_ID
;
6402 /* Begin with attributes from the default face. */
6403 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6405 /* Merge in attributes specified via text properties. */
6407 merge_face_ref (f
, prop
, attrs
, 1, 0);
6409 /* If in the region, merge in the region face. */
6410 if (pos
>= region_beg
&& pos
< region_end
)
6412 merge_named_face (f
, Qregion
, attrs
, 0);
6414 if (region_end
< endpos
)
6415 endpos
= region_end
;
6420 /* Look up a realized face with the given face attributes,
6421 or realize a new one for ASCII characters. */
6422 return lookup_face (f
, attrs
);
6426 /* Compute the face at character position POS in Lisp string STRING on
6427 window W, for ASCII characters.
6429 If STRING is an overlay string, it comes from position BUFPOS in
6430 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6431 not an overlay string. W must display the current buffer.
6432 REGION_BEG and REGION_END give the start and end positions of the
6433 region; both are -1 if no region is visible.
6435 BASE_FACE_ID is the id of a face to merge with. For strings coming
6436 from overlays or the `display' property it is the face at BUFPOS.
6438 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6440 Set *ENDPTR to the next position where to check for faces in
6441 STRING; -1 if the face is constant from POS to the end of the
6444 Value is the id of the face to use. The face returned is suitable
6445 for displaying ASCII characters. */
6448 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6449 region_end
, endptr
, base_face_id
, mouse_p
)
6452 EMACS_INT pos
, bufpos
;
6453 EMACS_INT region_beg
, region_end
;
6455 enum face_id base_face_id
;
6458 Lisp_Object prop
, position
, end
, limit
;
6459 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6460 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6461 struct face
*base_face
;
6462 int multibyte_p
= STRING_MULTIBYTE (string
);
6463 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6465 /* Get the value of the face property at the current position within
6466 STRING. Value is nil if there is no face property. */
6467 XSETFASTINT (position
, pos
);
6468 prop
= Fget_text_property (position
, prop_name
, string
);
6470 /* Get the next position at which to check for faces. Value of end
6471 is nil if face is constant all the way to the end of the string.
6472 Otherwise it is a string position where to check faces next.
6473 Limit is the maximum position up to which to check for property
6474 changes in Fnext_single_property_change. Strings are usually
6475 short, so set the limit to the end of the string. */
6476 XSETFASTINT (limit
, SCHARS (string
));
6477 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6479 *endptr
= XFASTINT (end
);
6483 base_face
= FACE_FROM_ID (f
, base_face_id
);
6484 xassert (base_face
);
6486 /* Optimize the default case that there is no face property and we
6487 are not in the region. */
6489 && (base_face_id
!= DEFAULT_FACE_ID
6490 /* BUFPOS <= 0 means STRING is not an overlay string, so
6491 that the region doesn't have to be taken into account. */
6493 || bufpos
< region_beg
6494 || bufpos
>= region_end
)
6496 /* We can't realize faces for different charsets differently
6497 if we don't have fonts, so we can stop here if not working
6498 on a window-system frame. */
6499 || !FRAME_WINDOW_P (f
)
6500 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6501 return base_face
->id
;
6503 /* Begin with attributes from the base face. */
6504 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6506 /* Merge in attributes specified via text properties. */
6508 merge_face_ref (f
, prop
, attrs
, 1, 0);
6510 /* If in the region, merge in the region face. */
6512 && bufpos
>= region_beg
6513 && bufpos
< region_end
)
6514 merge_named_face (f
, Qregion
, attrs
, 0);
6516 /* Look up a realized face with the given face attributes,
6517 or realize a new one for ASCII characters. */
6518 return lookup_face (f
, attrs
);
6522 /* Merge a face into a realized face.
6524 F is frame where faces are (to be) realized.
6526 FACE_NAME is named face to merge.
6528 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6530 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6532 BASE_FACE_ID is realized face to merge into.
6538 merge_faces (f
, face_name
, face_id
, base_face_id
)
6540 Lisp_Object face_name
;
6541 int face_id
, base_face_id
;
6543 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6544 struct face
*base_face
;
6546 base_face
= FACE_FROM_ID (f
, base_face_id
);
6548 return base_face_id
;
6550 if (EQ (face_name
, Qt
))
6552 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6553 return base_face_id
;
6554 face_name
= lface_id_to_name
[face_id
];
6555 /* When called during make-frame, lookup_derived_face may fail
6556 if the faces are uninitialized. Don't signal an error. */
6557 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 0);
6558 return (face_id
>= 0 ? face_id
: base_face_id
);
6561 /* Begin with attributes from the base face. */
6562 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6564 if (!NILP (face_name
))
6566 if (!merge_named_face (f
, face_name
, attrs
, 0))
6567 return base_face_id
;
6573 return base_face_id
;
6574 face
= FACE_FROM_ID (f
, face_id
);
6576 return base_face_id
;
6577 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6580 /* Look up a realized face with the given face attributes,
6581 or realize a new one for ASCII characters. */
6582 return lookup_face (f
, attrs
);
6587 #ifndef HAVE_X_WINDOWS
6588 DEFUN ("x-load-color-file", Fx_load_color_file
,
6589 Sx_load_color_file
, 1, 1, 0,
6590 doc
: /* Create an alist of color entries from an external file.
6592 The file should define one named RGB color per line like so:
6594 where R,G,B are numbers between 0 and 255 and name is an arbitrary string. */)
6596 Lisp_Object filename
;
6599 Lisp_Object cmap
= Qnil
;
6600 Lisp_Object abspath
;
6602 CHECK_STRING (filename
);
6603 abspath
= Fexpand_file_name (filename
, Qnil
);
6605 fp
= fopen (SDATA (filename
), "rt");
6609 int red
, green
, blue
;
6614 while (fgets (buf
, sizeof (buf
), fp
) != NULL
) {
6615 if (sscanf (buf
, "%u %u %u %n", &red
, &green
, &blue
, &num
) == 3)
6617 char *name
= buf
+ num
;
6618 num
= strlen (name
) - 1;
6619 if (name
[num
] == '\n')
6621 cmap
= Fcons (Fcons (build_string (name
),
6623 make_number (RGB (red
, green
, blue
))),
6625 make_number ((red
<< 16) | (green
<< 8) | blue
)),
6640 /***********************************************************************
6642 ***********************************************************************/
6646 /* Print the contents of the realized face FACE to stderr. */
6649 dump_realized_face (face
)
6652 fprintf (stderr
, "ID: %d\n", face
->id
);
6653 #ifdef HAVE_X_WINDOWS
6654 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6656 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6658 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6659 fprintf (stderr
, "background: 0x%lx (%s)\n",
6661 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6663 fprintf (stderr
, "font_name: %s (%s)\n",
6664 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6665 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6666 #ifdef HAVE_X_WINDOWS
6667 fprintf (stderr
, "font = %p\n", face
->font
);
6669 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6670 fprintf (stderr
, "underline: %d (%s)\n",
6672 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6673 fprintf (stderr
, "hash: %d\n", face
->hash
);
6677 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6685 fprintf (stderr
, "font selection order: ");
6686 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6687 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6688 fprintf (stderr
, "\n");
6690 fprintf (stderr
, "alternative fonts: ");
6691 debug_print (Vface_alternative_font_family_alist
);
6692 fprintf (stderr
, "\n");
6694 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6695 Fdump_face (make_number (i
));
6701 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6703 error ("Not a valid face");
6704 dump_realized_face (face
);
6711 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6712 0, 0, 0, doc
: /* */)
6715 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6716 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6717 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6721 #endif /* GLYPH_DEBUG != 0 */
6725 /***********************************************************************
6727 ***********************************************************************/
6732 Qface
= intern ("face");
6734 Qface_no_inherit
= intern ("face-no-inherit");
6735 staticpro (&Qface_no_inherit
);
6736 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6737 staticpro (&Qbitmap_spec_p
);
6738 Qframe_set_background_mode
= intern ("frame-set-background-mode");
6739 staticpro (&Qframe_set_background_mode
);
6741 /* Lisp face attribute keywords. */
6742 QCfamily
= intern (":family");
6743 staticpro (&QCfamily
);
6744 QCheight
= intern (":height");
6745 staticpro (&QCheight
);
6746 QCweight
= intern (":weight");
6747 staticpro (&QCweight
);
6748 QCslant
= intern (":slant");
6749 staticpro (&QCslant
);
6750 QCunderline
= intern (":underline");
6751 staticpro (&QCunderline
);
6752 QCinverse_video
= intern (":inverse-video");
6753 staticpro (&QCinverse_video
);
6754 QCreverse_video
= intern (":reverse-video");
6755 staticpro (&QCreverse_video
);
6756 QCforeground
= intern (":foreground");
6757 staticpro (&QCforeground
);
6758 QCbackground
= intern (":background");
6759 staticpro (&QCbackground
);
6760 QCstipple
= intern (":stipple");
6761 staticpro (&QCstipple
);
6762 QCwidth
= intern (":width");
6763 staticpro (&QCwidth
);
6764 QCfont
= intern (":font");
6765 staticpro (&QCfont
);
6766 QCfontset
= intern (":fontset");
6767 staticpro (&QCfontset
);
6768 QCbold
= intern (":bold");
6769 staticpro (&QCbold
);
6770 QCitalic
= intern (":italic");
6771 staticpro (&QCitalic
);
6772 QCoverline
= intern (":overline");
6773 staticpro (&QCoverline
);
6774 QCstrike_through
= intern (":strike-through");
6775 staticpro (&QCstrike_through
);
6776 QCbox
= intern (":box");
6778 QCinherit
= intern (":inherit");
6779 staticpro (&QCinherit
);
6781 /* Symbols used for Lisp face attribute values. */
6782 QCcolor
= intern (":color");
6783 staticpro (&QCcolor
);
6784 QCline_width
= intern (":line-width");
6785 staticpro (&QCline_width
);
6786 QCstyle
= intern (":style");
6787 staticpro (&QCstyle
);
6788 Qreleased_button
= intern ("released-button");
6789 staticpro (&Qreleased_button
);
6790 Qpressed_button
= intern ("pressed-button");
6791 staticpro (&Qpressed_button
);
6792 Qnormal
= intern ("normal");
6793 staticpro (&Qnormal
);
6794 Qultra_light
= intern ("ultra-light");
6795 staticpro (&Qultra_light
);
6796 Qextra_light
= intern ("extra-light");
6797 staticpro (&Qextra_light
);
6798 Qlight
= intern ("light");
6799 staticpro (&Qlight
);
6800 Qsemi_light
= intern ("semi-light");
6801 staticpro (&Qsemi_light
);
6802 Qsemi_bold
= intern ("semi-bold");
6803 staticpro (&Qsemi_bold
);
6804 Qbold
= intern ("bold");
6806 Qextra_bold
= intern ("extra-bold");
6807 staticpro (&Qextra_bold
);
6808 Qultra_bold
= intern ("ultra-bold");
6809 staticpro (&Qultra_bold
);
6810 Qoblique
= intern ("oblique");
6811 staticpro (&Qoblique
);
6812 Qitalic
= intern ("italic");
6813 staticpro (&Qitalic
);
6814 Qreverse_oblique
= intern ("reverse-oblique");
6815 staticpro (&Qreverse_oblique
);
6816 Qreverse_italic
= intern ("reverse-italic");
6817 staticpro (&Qreverse_italic
);
6818 Qultra_condensed
= intern ("ultra-condensed");
6819 staticpro (&Qultra_condensed
);
6820 Qextra_condensed
= intern ("extra-condensed");
6821 staticpro (&Qextra_condensed
);
6822 Qcondensed
= intern ("condensed");
6823 staticpro (&Qcondensed
);
6824 Qsemi_condensed
= intern ("semi-condensed");
6825 staticpro (&Qsemi_condensed
);
6826 Qsemi_expanded
= intern ("semi-expanded");
6827 staticpro (&Qsemi_expanded
);
6828 Qexpanded
= intern ("expanded");
6829 staticpro (&Qexpanded
);
6830 Qextra_expanded
= intern ("extra-expanded");
6831 staticpro (&Qextra_expanded
);
6832 Qultra_expanded
= intern ("ultra-expanded");
6833 staticpro (&Qultra_expanded
);
6834 Qbackground_color
= intern ("background-color");
6835 staticpro (&Qbackground_color
);
6836 Qforeground_color
= intern ("foreground-color");
6837 staticpro (&Qforeground_color
);
6838 Qunspecified
= intern ("unspecified");
6839 staticpro (&Qunspecified
);
6840 Qignore_defface
= intern (":ignore-defface");
6841 staticpro (&Qignore_defface
);
6843 Qface_alias
= intern ("face-alias");
6844 staticpro (&Qface_alias
);
6845 Qdefault
= intern ("default");
6846 staticpro (&Qdefault
);
6847 Qtool_bar
= intern ("tool-bar");
6848 staticpro (&Qtool_bar
);
6849 Qregion
= intern ("region");
6850 staticpro (&Qregion
);
6851 Qfringe
= intern ("fringe");
6852 staticpro (&Qfringe
);
6853 Qheader_line
= intern ("header-line");
6854 staticpro (&Qheader_line
);
6855 Qscroll_bar
= intern ("scroll-bar");
6856 staticpro (&Qscroll_bar
);
6857 Qmenu
= intern ("menu");
6859 Qcursor
= intern ("cursor");
6860 staticpro (&Qcursor
);
6861 Qborder
= intern ("border");
6862 staticpro (&Qborder
);
6863 Qmouse
= intern ("mouse");
6864 staticpro (&Qmouse
);
6865 Qmode_line_inactive
= intern ("mode-line-inactive");
6866 staticpro (&Qmode_line_inactive
);
6867 Qvertical_border
= intern ("vertical-border");
6868 staticpro (&Qvertical_border
);
6869 Qtty_color_desc
= intern ("tty-color-desc");
6870 staticpro (&Qtty_color_desc
);
6871 Qtty_color_standard_values
= intern ("tty-color-standard-values");
6872 staticpro (&Qtty_color_standard_values
);
6873 Qtty_color_by_index
= intern ("tty-color-by-index");
6874 staticpro (&Qtty_color_by_index
);
6875 Qtty_color_alist
= intern ("tty-color-alist");
6876 staticpro (&Qtty_color_alist
);
6877 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
6878 staticpro (&Qscalable_fonts_allowed
);
6880 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6881 staticpro (&Vparam_value_alist
);
6882 Vface_alternative_font_family_alist
= Qnil
;
6883 staticpro (&Vface_alternative_font_family_alist
);
6884 Vface_alternative_font_registry_alist
= Qnil
;
6885 staticpro (&Vface_alternative_font_registry_alist
);
6887 defsubr (&Sinternal_make_lisp_face
);
6888 defsubr (&Sinternal_lisp_face_p
);
6889 defsubr (&Sinternal_set_lisp_face_attribute
);
6890 #ifdef HAVE_WINDOW_SYSTEM
6891 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6893 defsubr (&Scolor_gray_p
);
6894 defsubr (&Scolor_supported_p
);
6895 #ifndef HAVE_X_WINDOWS
6896 defsubr (&Sx_load_color_file
);
6898 defsubr (&Sface_attribute_relative_p
);
6899 defsubr (&Smerge_face_attribute
);
6900 defsubr (&Sinternal_get_lisp_face_attribute
);
6901 defsubr (&Sinternal_lisp_face_attribute_values
);
6902 defsubr (&Sinternal_lisp_face_equal_p
);
6903 defsubr (&Sinternal_lisp_face_empty_p
);
6904 defsubr (&Sinternal_copy_lisp_face
);
6905 defsubr (&Sinternal_merge_in_global_face
);
6906 defsubr (&Sface_font
);
6907 defsubr (&Sframe_face_alist
);
6908 defsubr (&Sdisplay_supports_face_attributes_p
);
6909 defsubr (&Scolor_distance
);
6910 defsubr (&Sinternal_set_font_selection_order
);
6911 defsubr (&Sinternal_set_alternative_font_family_alist
);
6912 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6913 defsubr (&Sface_attributes_as_vector
);
6915 defsubr (&Sdump_face
);
6916 defsubr (&Sshow_face_resources
);
6917 #endif /* GLYPH_DEBUG */
6918 defsubr (&Sclear_face_cache
);
6919 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6921 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6922 defsubr (&Sdump_colors
);
6925 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6926 doc
: /* *Limit for font matching.
6927 If an integer > 0, font matching functions won't load more than
6928 that number of fonts when searching for a matching font. */);
6929 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6931 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6932 doc
: /* List of global face definitions (for internal use only.) */);
6933 Vface_new_frame_defaults
= Qnil
;
6935 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6936 doc
: /* *Default stipple pattern used on monochrome displays.
6937 This stipple pattern is used on monochrome displays
6938 instead of shades of gray for a face background color.
6939 See `set-face-stipple' for possible values for this variable. */);
6940 Vface_default_stipple
= build_string ("gray3");
6942 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
6943 doc
: /* An alist of defined terminal colors and their RGB values. */);
6944 Vtty_defined_color_alist
= Qnil
;
6946 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6947 doc
: /* Allowed scalable fonts.
6948 A value of nil means don't allow any scalable fonts.
6949 A value of t means allow any scalable font.
6950 Otherwise, value must be a list of regular expressions. A font may be
6951 scaled if its name matches a regular expression in the list.
6952 Note that if value is nil, a scalable font might still be used, if no
6953 other font of the appropriate family and registry is available. */);
6954 Vscalable_fonts_allowed
= Qnil
;
6956 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
6957 doc
: /* List of ignored fonts.
6958 Each element is a regular expression that matches names of fonts to
6960 Vface_ignored_fonts
= Qnil
;
6962 DEFVAR_LISP ("face-remapping-alist", &Vface_remapping_alist
,
6963 doc
: /* Alist of face remappings.
6964 Each element is of the form:
6966 (FACE REPLACEMENT...),
6968 which causes display of the face FACE to use REPLACEMENT... instead.
6969 REPLACEMENT... is interpreted the same way the value of a `face' text
6970 property is: it may be (1) A face name, (2) A list of face names, (3) A
6971 property-list of face attribute/value pairs, or (4) A list of face names
6972 intermixed with lists containing face attribute/value pairs.
6974 Multiple entries in REPLACEMENT... are merged together to form the final
6975 result, with faces or attributes earlier in the list taking precedence
6976 over those that are later.
6978 Face-name remapping cycles are suppressed; recursive references use the
6979 underlying face instead of the remapped face. So a remapping of the form:
6981 (FACE EXTRA-FACE... FACE)
6985 (FACE (FACE-ATTR VAL ...) FACE)
6987 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6988 existing definition of FACE. Note that for the default face, this isn't
6989 necessary, as every face inherits from the default face.
6991 Making this variable buffer-local is a good way to allow buffer-specific
6992 face definitions. For instance, the mode my-mode could define a face
6993 `my-mode-default', and then in the mode setup function, do:
6995 (set (make-local-variable 'face-remapping-alist)
6996 '((default my-mode-default)))). */);
6997 Vface_remapping_alist
= Qnil
;
6999 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7000 doc
: /* Alist of fonts vs the rescaling factors.
7001 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7002 FONT-NAME-PATTERN is a regular expression matching a font name, and
7003 RESCALE-RATIO is a floating point number to specify how much larger
7004 \(or smaller) font we should use. For instance, if a face requests
7005 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7006 Vface_font_rescale_alist
= Qnil
;
7008 #ifdef HAVE_WINDOW_SYSTEM
7009 defsubr (&Sbitmap_spec_p
);
7010 defsubr (&Sx_list_fonts
);
7011 defsubr (&Sinternal_face_x_get_resource
);
7012 defsubr (&Sx_family_fonts
);
7013 defsubr (&Sx_font_family_list
);
7014 #endif /* HAVE_WINDOW_SYSTEM */
7017 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7018 (do not change this comment) */