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 x_list_fonts w32_list_fonts
238 #define GCGraphicsExposures 0
239 #endif /* WINDOWSNT */
243 #define x_display_info mac_display_info
244 #define check_x check_mac
248 #include "dispextern.h"
249 #include "blockinput.h"
251 #include "intervals.h"
252 #include "termchar.h"
255 #ifdef HAVE_WINDOW_SYSTEM
257 #endif /* HAVE_WINDOW_SYSTEM */
259 #ifdef HAVE_X_WINDOWS
261 /* Compensate for a bug in Xos.h on some systems, on which it requires
262 time.h. On some such systems, Xos.h tries to redefine struct
263 timeval and struct timezone if USG is #defined while it is
266 #ifdef XOS_NEEDS_TIME_H
272 #else /* not XOS_NEEDS_TIME_H */
274 #endif /* not XOS_NEEDS_TIME_H */
276 #endif /* HAVE_X_WINDOWS */
280 /* Number of pt per inch (from the TeXbook). */
282 #define PT_PER_INCH 72.27
284 /* Non-zero if face attribute ATTR is unspecified. */
286 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
288 /* Non-zero if face attribute ATTR is `ignore-defface'. */
290 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
292 /* Value is the number of elements of VECTOR. */
294 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
296 /* Make a copy of string S on the stack using alloca. Value is a pointer
299 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
301 /* Make a copy of the contents of Lisp string S on the stack using
302 alloca. Value is a pointer to the copy. */
304 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
306 /* Size of hash table of realized faces in face caches (should be a
309 #define FACE_CACHE_BUCKETS_SIZE 1001
311 /* Keyword symbols used for face attribute names. */
313 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
314 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
315 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
316 Lisp_Object QCreverse_video
;
317 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
318 Lisp_Object QCfontset
;
320 /* Keywords symbols used for font properties. */
321 extern Lisp_Object QCfoundry
, QCadstyle
, QCregistry
;
322 extern Lisp_Object QCspacing
, QCsize
, QCavgwidth
;
323 extern Lisp_Object Qp
;
325 /* Symbols used for attribute values. */
327 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
328 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
329 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
330 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
331 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
332 Lisp_Object Qultra_expanded
;
333 Lisp_Object Qreleased_button
, Qpressed_button
;
334 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
335 Lisp_Object Qunspecified
;
336 Lisp_Object Qignore_defface
;
338 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
340 /* The name of the function to call when the background of the frame
341 has changed, frame_set_background_mode. */
343 Lisp_Object Qframe_set_background_mode
;
345 /* Names of basic faces. */
347 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
348 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
349 Lisp_Object Qmode_line_inactive
, Qvertical_border
;
350 extern Lisp_Object Qmode_line
;
352 /* The symbol `face-alias'. A symbols having that property is an
353 alias for another face. Value of the property is the name of
356 Lisp_Object Qface_alias
;
358 extern Lisp_Object Qcircular_list
;
360 /* Default stipple pattern used on monochrome displays. This stipple
361 pattern is used on monochrome displays instead of shades of gray
362 for a face background color. See `set-face-stipple' for possible
363 values for this variable. */
365 Lisp_Object Vface_default_stipple
;
367 /* Alist of alternative font families. Each element is of the form
368 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
369 try FAMILY1, then FAMILY2, ... */
371 Lisp_Object Vface_alternative_font_family_alist
;
373 /* Alist of alternative font registries. Each element is of the form
374 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
375 loaded, try REGISTRY1, then REGISTRY2, ... */
377 Lisp_Object Vface_alternative_font_registry_alist
;
379 /* Allowed scalable fonts. A value of nil means don't allow any
380 scalable fonts. A value of t means allow the use of any scalable
381 font. Otherwise, value must be a list of regular expressions. A
382 font may be scaled if its name matches a regular expression in the
385 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
387 /* List of regular expressions that matches names of fonts to ignore. */
389 Lisp_Object Vface_ignored_fonts
;
391 /* Alist of font name patterns vs the rescaling factor. */
393 Lisp_Object Vface_font_rescale_alist
;
395 /* Maximum number of fonts to consider in font_list. If not an
396 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
398 Lisp_Object Vfont_list_limit
;
399 #define DEFAULT_FONT_LIST_LIMIT 100
401 /* The symbols `foreground-color' and `background-color' which can be
402 used as part of a `face' property. This is for compatibility with
405 Lisp_Object Qforeground_color
, Qbackground_color
;
407 /* The symbols `face' and `mouse-face' used as text properties. */
410 extern Lisp_Object Qmouse_face
;
412 /* Property for basic faces which other faces cannot inherit. */
414 Lisp_Object Qface_no_inherit
;
416 /* Error symbol for wrong_type_argument in load_pixmap. */
418 Lisp_Object Qbitmap_spec_p
;
420 /* Alist of global face definitions. Each element is of the form
421 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
422 is a Lisp vector of face attributes. These faces are used
423 to initialize faces for new frames. */
425 Lisp_Object Vface_new_frame_defaults
;
427 /* Alist of face remappings. Each element is of the form:
428 (FACE REPLACEMENT...) which causes display of the face FACE to use
429 REPLACEMENT... instead. REPLACEMENT... is interpreted the same way
430 the value of a `face' text property is: it may be (1) A face name,
431 (2) A list of face names, (3) A property-list of face attribute/value
432 pairs, or (4) A list of face names intermixed with lists containing
433 face attribute/value pairs.
435 Multiple entries in REPLACEMENT... are merged together to form the final
436 result, with faces or attributes earlier in the list taking precedence
437 over those that are later.
439 Face-name remapping cycles are suppressed; recursive references use
440 the underlying face instead of the remapped face. */
442 Lisp_Object Vface_remapping_alist
;
444 /* The next ID to assign to Lisp faces. */
446 static int next_lface_id
;
448 /* A vector mapping Lisp face Id's to face names. */
450 static Lisp_Object
*lface_id_to_name
;
451 static int lface_id_to_name_size
;
453 /* TTY color-related functions (defined in tty-colors.el). */
455 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
457 /* The name of the function used to compute colors on TTYs. */
459 Lisp_Object Qtty_color_alist
;
461 /* An alist of defined terminal colors and their RGB values. */
463 Lisp_Object Vtty_defined_color_alist
;
465 /* Counter for calls to clear_face_cache. If this counter reaches
466 CLEAR_FONT_TABLE_COUNT, and a frame has more than
467 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
469 static int clear_font_table_count
;
470 #define CLEAR_FONT_TABLE_COUNT 100
471 #define CLEAR_FONT_TABLE_NFONTS 10
473 /* Non-zero means face attributes have been changed since the last
474 redisplay. Used in redisplay_internal. */
476 int face_change_count
;
478 /* Non-zero means don't display bold text if a face's foreground
479 and background colors are the inverse of the default colors of the
480 display. This is a kluge to suppress `bold black' foreground text
481 which is hard to read on an LCD monitor. */
483 int tty_suppress_bold_inverse_default_colors_p
;
485 /* A list of the form `((x . y))' used to avoid consing in
486 Finternal_set_lisp_face_attribute. */
488 static Lisp_Object Vparam_value_alist
;
490 /* The total number of colors currently allocated. */
493 static int ncolors_allocated
;
494 static int npixmaps_allocated
;
498 /* Non-zero means the definition of the `menu' face for new frames has
501 int menu_face_changed_default
;
504 /* Function prototypes. */
507 struct named_merge_point
;
509 static void map_tty_color
P_ ((struct frame
*, struct face
*,
510 enum lface_attribute_index
, int *));
511 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
, int));
512 static int may_use_scalable_font_p
P_ ((const char *));
513 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
514 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
515 int, struct named_merge_point
*));
516 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
517 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
518 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
519 static void free_face_colors
P_ ((struct frame
*, struct face
*));
520 static int face_color_gray_p
P_ ((struct frame
*, char *));
521 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*,
523 static struct face
*realize_non_ascii_face
P_ ((struct frame
*, Lisp_Object
,
525 static struct face
*realize_x_face
P_ ((struct face_cache
*, Lisp_Object
*));
526 static struct face
*realize_tty_face
P_ ((struct face_cache
*, Lisp_Object
*));
527 static int realize_basic_faces
P_ ((struct frame
*));
528 static int realize_default_face
P_ ((struct frame
*));
529 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
530 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
531 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
532 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
533 static unsigned lface_hash
P_ ((Lisp_Object
*));
534 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
535 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
536 static void clear_face_gcs
P_ ((struct face_cache
*));
537 static void free_face_cache
P_ ((struct face_cache
*));
538 static int face_fontset
P_ ((Lisp_Object
*));
539 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
540 struct named_merge_point
*));
541 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
542 int, struct named_merge_point
*));
543 static int set_lface_from_font
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
545 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
546 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
547 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
548 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
550 #ifdef HAVE_WINDOW_SYSTEM
552 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
553 static void x_free_gc
P_ ((struct frame
*, GC
));
556 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
557 #endif /* WINDOWSNT */
560 static void x_update_menu_appearance
P_ ((struct frame
*));
562 extern void free_frame_menubar
P_ ((struct frame
*));
563 #endif /* USE_X_TOOLKIT */
565 #endif /* HAVE_WINDOW_SYSTEM */
568 /***********************************************************************
570 ***********************************************************************/
572 #ifdef HAVE_X_WINDOWS
574 #ifdef DEBUG_X_COLORS
576 /* The following is a poor mans infrastructure for debugging X color
577 allocation problems on displays with PseudoColor-8. Some X servers
578 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
579 color reference counts completely so that they don't signal an
580 error when a color is freed whose reference count is already 0.
581 Other X servers do. To help me debug this, the following code
582 implements a simple reference counting schema of its own, for a
583 single display/screen. --gerd. */
585 /* Reference counts for pixel colors. */
587 int color_count
[256];
589 /* Register color PIXEL as allocated. */
592 register_color (pixel
)
595 xassert (pixel
< 256);
596 ++color_count
[pixel
];
600 /* Register color PIXEL as deallocated. */
603 unregister_color (pixel
)
606 xassert (pixel
< 256);
607 if (color_count
[pixel
] > 0)
608 --color_count
[pixel
];
614 /* Register N colors from PIXELS as deallocated. */
617 unregister_colors (pixels
, n
)
618 unsigned long *pixels
;
622 for (i
= 0; i
< n
; ++i
)
623 unregister_color (pixels
[i
]);
627 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
628 doc
: /* Dump currently allocated colors to stderr. */)
633 fputc ('\n', stderr
);
635 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
638 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
641 fputc ('\n', stderr
);
643 fputc ('\t', stderr
);
647 fputc ('\n', stderr
);
651 #endif /* DEBUG_X_COLORS */
654 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
655 color values. Interrupt input must be blocked when this function
659 x_free_colors (f
, pixels
, npixels
)
661 unsigned long *pixels
;
664 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
666 /* If display has an immutable color map, freeing colors is not
667 necessary and some servers don't allow it. So don't do it. */
668 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
670 #ifdef DEBUG_X_COLORS
671 unregister_colors (pixels
, npixels
);
673 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
679 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
680 color values. Interrupt input must be blocked when this function
684 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
688 unsigned long *pixels
;
691 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
692 int class = dpyinfo
->visual
->class;
694 /* If display has an immutable color map, freeing colors is not
695 necessary and some servers don't allow it. So don't do it. */
696 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
698 #ifdef DEBUG_X_COLORS
699 unregister_colors (pixels
, npixels
);
701 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
706 /* Create and return a GC for use on frame F. GC values and mask
707 are given by XGCV and MASK. */
710 x_create_gc (f
, mask
, xgcv
)
717 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
724 /* Free GC which was used on frame F. */
731 eassert (interrupt_input_blocked
);
732 IF_DEBUG (xassert (--ngcs
>= 0));
733 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
736 #endif /* HAVE_X_WINDOWS */
739 /* W32 emulation of GCs */
742 x_create_gc (f
, mask
, xgcv
)
749 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
756 /* Free GC which was used on frame F. */
763 IF_DEBUG (xassert (--ngcs
>= 0));
767 #endif /* WINDOWSNT */
770 /* Mac OS emulation of GCs */
773 x_create_gc (f
, mask
, xgcv
)
780 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
791 eassert (interrupt_input_blocked
);
792 IF_DEBUG (xassert (--ngcs
>= 0));
793 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
798 /* Like strcasecmp/stricmp. Used to compare parts of font names which
803 const unsigned char *s1
, *s2
;
807 unsigned char c1
= tolower (*s1
);
808 unsigned char c2
= tolower (*s2
);
810 return c1
< c2
? -1 : 1;
815 return *s2
== 0 ? 0 : -1;
820 /* If FRAME is nil, return a pointer to the selected frame.
821 Otherwise, check that FRAME is a live frame, and return a pointer
822 to it. NPARAM is the parameter number of FRAME, for
823 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
824 Lisp function definitions. */
826 static INLINE
struct frame
*
827 frame_or_selected_frame (frame
, nparam
)
832 frame
= selected_frame
;
834 CHECK_LIVE_FRAME (frame
);
835 return XFRAME (frame
);
839 /***********************************************************************
841 ***********************************************************************/
843 /* Initialize face cache and basic faces for frame F. */
849 /* Make a face cache, if F doesn't have one. */
850 if (FRAME_FACE_CACHE (f
) == NULL
)
851 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
853 #ifdef HAVE_WINDOW_SYSTEM
854 /* Make the image cache. */
855 if (FRAME_WINDOW_P (f
))
857 if (FRAME_IMAGE_CACHE (f
) == NULL
)
858 /* Is that ever possible?? --Stef */
859 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
860 ++FRAME_IMAGE_CACHE (f
)->refcount
;
862 #endif /* HAVE_WINDOW_SYSTEM */
864 /* Realize basic faces. Must have enough information in frame
865 parameters to realize basic faces at this point. */
866 #ifdef HAVE_X_WINDOWS
867 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
870 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
873 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
875 if (!realize_basic_faces (f
))
880 /* Free face cache of frame F. Called from Fdelete_frame. */
886 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
890 free_face_cache (face_cache
);
891 FRAME_FACE_CACHE (f
) = NULL
;
894 #ifdef HAVE_WINDOW_SYSTEM
895 if (FRAME_WINDOW_P (f
))
897 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
900 --image_cache
->refcount
;
901 if (image_cache
->refcount
== 0)
902 free_image_cache (f
);
905 #endif /* HAVE_WINDOW_SYSTEM */
909 /* Clear face caches, and recompute basic faces for frame F. Call
910 this after changing frame parameters on which those faces depend,
911 or when realized faces have been freed due to changing attributes
915 recompute_basic_faces (f
)
918 if (FRAME_FACE_CACHE (f
))
920 clear_face_cache (0);
921 if (!realize_basic_faces (f
))
927 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
928 try to free unused fonts, too. */
931 clear_face_cache (clear_fonts_p
)
934 #ifdef HAVE_WINDOW_SYSTEM
935 Lisp_Object tail
, frame
;
939 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
942 /* Not yet implemented. */
943 clear_font_cache (frame
);
946 /* From time to time see if we can unload some fonts. This also
947 frees all realized faces on all frames. Fonts needed by
948 faces will be loaded again when faces are realized again. */
949 clear_font_table_count
= 0;
951 FOR_EACH_FRAME (tail
, frame
)
953 struct frame
*f
= XFRAME (frame
);
954 if (FRAME_WINDOW_P (f
)
955 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
956 free_all_realized_faces (frame
);
961 /* Clear GCs of realized faces. */
962 FOR_EACH_FRAME (tail
, frame
)
965 if (FRAME_WINDOW_P (f
))
966 clear_face_gcs (FRAME_FACE_CACHE (f
));
968 clear_image_caches (Qnil
);
970 #endif /* HAVE_WINDOW_SYSTEM */
974 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
975 doc
: /* Clear face caches on all frames.
976 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
978 Lisp_Object thoroughly
;
980 clear_face_cache (!NILP (thoroughly
));
982 ++windows_or_buffers_changed
;
987 /***********************************************************************
989 ***********************************************************************/
991 #ifdef HAVE_WINDOW_SYSTEM
993 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
994 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
995 A bitmap specification is either a string, a file name, or a list
996 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
997 HEIGHT is its height, and DATA is a string containing the bits of
998 the pixmap. Bits are stored row by row, each row occupies
999 \(WIDTH + 7)/8 bytes. */)
1005 if (STRINGP (object
))
1006 /* If OBJECT is a string, it's a file name. */
1008 else if (CONSP (object
))
1010 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1011 HEIGHT must be integers > 0, and DATA must be string large
1012 enough to hold a bitmap of the specified size. */
1013 Lisp_Object width
, height
, data
;
1015 height
= width
= data
= Qnil
;
1019 width
= XCAR (object
);
1020 object
= XCDR (object
);
1023 height
= XCAR (object
);
1024 object
= XCDR (object
);
1026 data
= XCAR (object
);
1030 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1032 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1034 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1039 return pixmap_p
? Qt
: Qnil
;
1043 /* Load a bitmap according to NAME (which is either a file name or a
1044 pixmap spec) for use on frame F. Value is the bitmap_id (see
1045 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1046 bitmap cannot be loaded, display a message saying so, and return
1047 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1048 if these pointers are not null. */
1051 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1054 unsigned int *w_ptr
, *h_ptr
;
1061 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
1066 /* Decode a bitmap spec into a bitmap. */
1071 w
= XINT (Fcar (name
));
1072 h
= XINT (Fcar (Fcdr (name
)));
1073 bits
= Fcar (Fcdr (Fcdr (name
)));
1075 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1080 /* It must be a string -- a file name. */
1081 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1087 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1098 ++npixmaps_allocated
;
1101 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1104 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1110 #endif /* HAVE_WINDOW_SYSTEM */
1114 /***********************************************************************
1116 ***********************************************************************/
1118 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1119 RGB_LIST should contain (at least) 3 lisp integers.
1120 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1123 parse_rgb_list (rgb_list
, color
)
1124 Lisp_Object rgb_list
;
1127 #define PARSE_RGB_LIST_FIELD(field) \
1128 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1130 color->field = XINT (XCAR (rgb_list)); \
1131 rgb_list = XCDR (rgb_list); \
1136 PARSE_RGB_LIST_FIELD (red
);
1137 PARSE_RGB_LIST_FIELD (green
);
1138 PARSE_RGB_LIST_FIELD (blue
);
1144 /* Lookup on frame F the color described by the lisp string COLOR.
1145 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1146 non-zero, then the `standard' definition of the same color is
1150 tty_lookup_color (f
, color
, tty_color
, std_color
)
1153 XColor
*tty_color
, *std_color
;
1155 Lisp_Object frame
, color_desc
;
1157 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1160 XSETFRAME (frame
, f
);
1162 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1163 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1167 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1170 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1172 rgb
= XCDR (XCDR (color_desc
));
1173 if (! parse_rgb_list (rgb
, tty_color
))
1176 /* Should we fill in STD_COLOR too? */
1179 /* Default STD_COLOR to the same as TTY_COLOR. */
1180 *std_color
= *tty_color
;
1182 /* Do a quick check to see if the returned descriptor is
1183 actually _exactly_ equal to COLOR, otherwise we have to
1184 lookup STD_COLOR separately. If it's impossible to lookup
1185 a standard color, we just give up and use TTY_COLOR. */
1186 if ((!STRINGP (XCAR (color_desc
))
1187 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1188 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1190 /* Look up STD_COLOR separately. */
1191 rgb
= call1 (Qtty_color_standard_values
, color
);
1192 if (! parse_rgb_list (rgb
, std_color
))
1199 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1200 /* We were called early during startup, and the colors are not
1201 yet set up in tty-defined-color-alist. Don't return a failure
1202 indication, since this produces the annoying "Unable to
1203 load color" messages in the *Messages* buffer. */
1206 /* tty-color-desc seems to have returned a bad value. */
1210 /* A version of defined_color for non-X frames. */
1213 tty_defined_color (f
, color_name
, color_def
, alloc
)
1222 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1224 color_def
->blue
= 0;
1225 color_def
->green
= 0;
1228 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1230 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1232 if (strcmp (color_name
, "unspecified-fg") == 0)
1233 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1234 else if (strcmp (color_name
, "unspecified-bg") == 0)
1235 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1238 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1245 /* Decide if color named COLOR_NAME is valid for the display
1246 associated with the frame F; if so, return the rgb values in
1247 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1249 This does the right thing for any type of frame. */
1252 defined_color (f
, color_name
, color_def
, alloc
)
1258 if (!FRAME_WINDOW_P (f
))
1259 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1260 #ifdef HAVE_X_WINDOWS
1261 else if (FRAME_X_P (f
))
1262 return x_defined_color (f
, color_name
, color_def
, alloc
);
1265 else if (FRAME_W32_P (f
))
1266 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1269 else if (FRAME_MAC_P (f
))
1270 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1277 /* Given the index IDX of a tty color on frame F, return its name, a
1281 tty_color_name (f
, idx
)
1285 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1288 Lisp_Object coldesc
;
1290 XSETFRAME (frame
, f
);
1291 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1293 if (!NILP (coldesc
))
1294 return XCAR (coldesc
);
1297 /* We can have an MSDOG frame under -nw for a short window of
1298 opportunity before internal_terminal_init is called. DTRT. */
1299 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1300 return msdos_stdcolor_name (idx
);
1303 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1304 return build_string (unspecified_fg
);
1305 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1306 return build_string (unspecified_bg
);
1308 return Qunspecified
;
1312 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1315 The criterion implemented here is not a terribly sophisticated one. */
1318 face_color_gray_p (f
, color_name
)
1325 if (defined_color (f
, color_name
, &color
, 0))
1326 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1327 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1329 ((eabs (color
.red
- color
.green
)
1330 < max (color
.red
, color
.green
) / 20)
1331 && (eabs (color
.green
- color
.blue
)
1332 < max (color
.green
, color
.blue
) / 20)
1333 && (eabs (color
.blue
- color
.red
)
1334 < max (color
.blue
, color
.red
) / 20)));
1342 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1343 BACKGROUND_P non-zero means the color will be used as background
1347 face_color_supported_p (f
, color_name
, background_p
)
1355 XSETFRAME (frame
, f
);
1357 #ifdef HAVE_WINDOW_SYSTEM
1359 ? (!NILP (Fxw_display_color_p (frame
))
1360 || xstrcasecmp (color_name
, "black") == 0
1361 || xstrcasecmp (color_name
, "white") == 0
1363 && face_color_gray_p (f
, color_name
))
1364 || (!NILP (Fx_display_grayscale_p (frame
))
1365 && face_color_gray_p (f
, color_name
)))
1368 tty_defined_color (f
, color_name
, ¬_used
, 0);
1372 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1373 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1374 FRAME specifies the frame and thus the display for interpreting COLOR.
1375 If FRAME is nil or omitted, use the selected frame. */)
1377 Lisp_Object color
, frame
;
1381 CHECK_STRING (color
);
1383 frame
= selected_frame
;
1385 CHECK_FRAME (frame
);
1387 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1391 DEFUN ("color-supported-p", Fcolor_supported_p
,
1392 Scolor_supported_p
, 1, 3, 0,
1393 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1394 BACKGROUND-P non-nil means COLOR is used as a background.
1395 Otherwise, this function tells whether it can be used as a foreground.
1396 If FRAME is nil or omitted, use the selected frame.
1397 COLOR must be a valid color name. */)
1398 (color
, frame
, background_p
)
1399 Lisp_Object frame
, color
, background_p
;
1403 CHECK_STRING (color
);
1405 frame
= selected_frame
;
1407 CHECK_FRAME (frame
);
1409 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1415 /* Load color with name NAME for use by face FACE on frame F.
1416 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1417 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1418 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1419 pixel color. If color cannot be loaded, display a message, and
1420 return the foreground, background or underline color of F, but
1421 record that fact in flags of the face so that we don't try to free
1425 load_color (f
, face
, name
, target_index
)
1429 enum lface_attribute_index target_index
;
1433 xassert (STRINGP (name
));
1434 xassert (target_index
== LFACE_FOREGROUND_INDEX
1435 || target_index
== LFACE_BACKGROUND_INDEX
1436 || target_index
== LFACE_UNDERLINE_INDEX
1437 || target_index
== LFACE_OVERLINE_INDEX
1438 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1439 || target_index
== LFACE_BOX_INDEX
);
1441 /* if the color map is full, defined_color will return a best match
1442 to the values in an existing cell. */
1443 if (!defined_color (f
, SDATA (name
), &color
, 1))
1445 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1447 switch (target_index
)
1449 case LFACE_FOREGROUND_INDEX
:
1450 face
->foreground_defaulted_p
= 1;
1451 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1454 case LFACE_BACKGROUND_INDEX
:
1455 face
->background_defaulted_p
= 1;
1456 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1459 case LFACE_UNDERLINE_INDEX
:
1460 face
->underline_defaulted_p
= 1;
1461 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1464 case LFACE_OVERLINE_INDEX
:
1465 face
->overline_color_defaulted_p
= 1;
1466 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1469 case LFACE_STRIKE_THROUGH_INDEX
:
1470 face
->strike_through_color_defaulted_p
= 1;
1471 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1474 case LFACE_BOX_INDEX
:
1475 face
->box_color_defaulted_p
= 1;
1476 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1485 ++ncolors_allocated
;
1492 #ifdef HAVE_WINDOW_SYSTEM
1494 /* Load colors for face FACE which is used on frame F. Colors are
1495 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1496 of ATTRS. If the background color specified is not supported on F,
1497 try to emulate gray colors with a stipple from Vface_default_stipple. */
1500 load_face_colors (f
, face
, attrs
)
1507 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1508 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1510 /* Swap colors if face is inverse-video. */
1511 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1519 /* Check for support for foreground, not for background because
1520 face_color_supported_p is smart enough to know that grays are
1521 "supported" as background because we are supposed to use stipple
1523 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1524 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1526 x_destroy_bitmap (f
, face
->stipple
);
1527 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1528 &face
->pixmap_w
, &face
->pixmap_h
);
1531 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1532 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1536 /* Free color PIXEL on frame F. */
1539 unload_color (f
, pixel
)
1541 unsigned long pixel
;
1543 #ifdef HAVE_X_WINDOWS
1547 x_free_colors (f
, &pixel
, 1);
1554 /* Free colors allocated for FACE. */
1557 free_face_colors (f
, face
)
1561 #ifdef HAVE_X_WINDOWS
1562 if (face
->colors_copied_bitwise_p
)
1567 if (!face
->foreground_defaulted_p
)
1569 x_free_colors (f
, &face
->foreground
, 1);
1570 IF_DEBUG (--ncolors_allocated
);
1573 if (!face
->background_defaulted_p
)
1575 x_free_colors (f
, &face
->background
, 1);
1576 IF_DEBUG (--ncolors_allocated
);
1579 if (face
->underline_p
1580 && !face
->underline_defaulted_p
)
1582 x_free_colors (f
, &face
->underline_color
, 1);
1583 IF_DEBUG (--ncolors_allocated
);
1586 if (face
->overline_p
1587 && !face
->overline_color_defaulted_p
)
1589 x_free_colors (f
, &face
->overline_color
, 1);
1590 IF_DEBUG (--ncolors_allocated
);
1593 if (face
->strike_through_p
1594 && !face
->strike_through_color_defaulted_p
)
1596 x_free_colors (f
, &face
->strike_through_color
, 1);
1597 IF_DEBUG (--ncolors_allocated
);
1600 if (face
->box
!= FACE_NO_BOX
1601 && !face
->box_color_defaulted_p
)
1603 x_free_colors (f
, &face
->box_color
, 1);
1604 IF_DEBUG (--ncolors_allocated
);
1608 #endif /* HAVE_X_WINDOWS */
1611 #endif /* HAVE_WINDOW_SYSTEM */
1615 /***********************************************************************
1617 ***********************************************************************/
1619 /* An enumerator for each field of an XLFD font name. */
1640 /* An enumerator for each possible slant value of a font. Taken from
1641 the XLFD specification. */
1649 XLFD_SLANT_REVERSE_ITALIC
,
1650 XLFD_SLANT_REVERSE_OBLIQUE
,
1654 /* Relative font weight according to XLFD documentation. */
1658 XLFD_WEIGHT_UNKNOWN
,
1659 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1660 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1661 XLFD_WEIGHT_LIGHT
, /* 30 */
1662 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1663 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1664 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1665 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1666 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1667 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1670 /* Relative proportionate width. */
1674 XLFD_SWIDTH_UNKNOWN
,
1675 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1676 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1677 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1678 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1679 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1680 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1681 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1682 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1683 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1686 /* Order by which font selection chooses fonts. The default values
1687 mean `first, find a best match for the font width, then for the
1688 font height, then for weight, then for slant.' This variable can be
1689 set via set-face-font-sort-order. */
1692 static int font_sort_order
[4] = {
1693 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1696 static int font_sort_order
[4];
1700 #ifdef HAVE_WINDOW_SYSTEM
1702 /* Return a rescaling ratio of a font of NAME. */
1705 font_rescale_ratio (name
)
1708 Lisp_Object tail
, elt
;
1710 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
1713 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
1714 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
1715 return XFLOAT_DATA (XCDR (elt
));
1720 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1723 compare_fonts_by_sort_order (v1
, v2
)
1724 const void *v1
, *v2
;
1726 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1727 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1730 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1732 enum font_property_index idx
= font_props_for_sorting
[i
];
1733 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1736 if (idx
<= FONT_REGISTRY_INDEX
)
1739 result
= STRINGP (val2
) ? strcmp (SDATA (val1
), SDATA (val2
)) : -1;
1741 result
= STRINGP (val2
) ? 1 : 0;
1745 if (INTEGERP (val1
))
1746 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1748 result
= INTEGERP (val2
) ? 1 : 0;
1756 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1757 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1758 If FAMILY is omitted or nil, list all families.
1759 Otherwise, FAMILY must be a string, possibly containing wildcards
1761 If FRAME is omitted or nil, use the selected frame.
1762 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1763 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1764 FAMILY is the font family name. POINT-SIZE is the size of the
1765 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1766 width, weight and slant of the font. These symbols are the same as for
1767 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1768 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1769 giving the registry and encoding of the font.
1770 The result list is sorted according to the current setting of
1771 the face font sort order. */)
1773 Lisp_Object family
, frame
;
1775 Lisp_Object font_spec
, vec
;
1780 frame
= selected_frame
;
1781 CHECK_LIVE_FRAME (frame
);
1783 font_spec
= Ffont_spec (0, NULL
);
1786 CHECK_STRING (family
);
1787 font_parse_family_registry (family
, Qnil
, font_spec
);
1789 vec
= font_list_entities (frame
, font_spec
);
1790 nfonts
= ASIZE (vec
);
1795 for (i
= 0; i
< 4; i
++)
1796 switch (font_sort_order
[i
])
1799 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1800 case XLFD_POINT_SIZE
:
1801 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1803 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1805 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1807 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1808 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1809 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1810 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1812 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1813 compare_fonts_by_sort_order
);
1817 for (i
= nfonts
- 1; i
>= 0; --i
)
1819 Lisp_Object font
= AREF (vec
, i
);
1820 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1822 Lisp_Object spacing
;
1824 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1825 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1826 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1827 XFRAME (frame
)->resy
);
1828 ASET (v
, 2, make_number (point
));
1829 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1830 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1831 spacing
= Ffont_get (font
, QCspacing
);
1832 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1833 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1834 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1836 result
= Fcons (v
, result
);
1843 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
1845 doc
: /* Return a list of available font families on FRAME.
1846 If FRAME is omitted or nil, use the selected frame.
1847 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
1848 is a font family, and FIXED-P is non-nil if fonts of that family
1849 are fixed-pitch. */)
1853 return Ffont_family_list (frame
);
1857 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1858 doc
: /* Return a list of the names of available fonts matching PATTERN.
1859 If optional arguments FACE and FRAME are specified, return only fonts
1860 the same size as FACE on FRAME.
1861 PATTERN is a string, perhaps with wildcard characters;
1862 the * character matches any substring, and
1863 the ? character matches any single character.
1864 PATTERN is case-insensitive.
1865 FACE is a face name--a symbol.
1867 The return value is a list of strings, suitable as arguments to
1870 Fonts Emacs can't use may or may not be excluded
1871 even if they match PATTERN and FACE.
1872 The optional fourth argument MAXIMUM sets a limit on how many
1873 fonts to match. The first MAXIMUM fonts are reported.
1874 The optional fifth argument WIDTH, if specified, is a number of columns
1875 occupied by a character of a font. In that case, return only fonts
1876 the WIDTH times as wide as FACE on FRAME. */)
1877 (pattern
, face
, frame
, maximum
, width
)
1878 Lisp_Object pattern
, face
, frame
, maximum
, width
;
1884 CHECK_STRING (pattern
);
1886 if (! NILP (maximum
))
1887 CHECK_NATNUM (maximum
);
1890 CHECK_NUMBER (width
);
1892 /* We can't simply call check_x_frame because this function may be
1893 called before any frame is created. */
1895 frame
= selected_frame
;
1896 f
= frame_or_selected_frame (frame
, 2);
1897 if (! FRAME_WINDOW_P (f
))
1899 /* Perhaps we have not yet created any frame. */
1905 /* Determine the width standard for comparison with the fonts we find. */
1911 /* This is of limited utility since it works with character
1912 widths. Keep it for compatibility. --gerd. */
1913 int face_id
= lookup_named_face (f
, face
, 0);
1914 struct face
*face
= (face_id
< 0
1916 : FACE_FROM_ID (f
, face_id
));
1918 if (face
&& face
->font
)
1920 size
= face
->font
->pixel_size
;
1921 avgwidth
= face
->font
->average_width
;
1925 size
= FRAME_FONT (f
)->pixel_size
;
1926 avgwidth
= FRAME_FONT (f
)->average_width
;
1929 avgwidth
*= XINT (width
);
1933 Lisp_Object font_spec
;
1934 Lisp_Object args
[2], tail
;
1936 font_spec
= font_spec_from_name (pattern
);
1939 Ffont_put (font_spec
, QCsize
, make_number (size
));
1940 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1942 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, font_spec
);
1943 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1944 XSETCAR (tail
, Ffont_xlfd_name (XCAR (tail
), Qnil
));
1946 /* We don't have to check fontsets. */
1948 args
[1] = list_fontsets (f
, pattern
, size
);
1949 return Fnconc (2, args
);
1953 #endif /* HAVE_WINDOW_SYSTEM */
1957 /***********************************************************************
1959 ***********************************************************************/
1961 /* Access face attributes of face LFACE, a Lisp vector. */
1963 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1964 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1965 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1966 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1967 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1968 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1969 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1970 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1971 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1972 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1973 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1974 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1975 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1976 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1977 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1978 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1979 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1981 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1982 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1984 #define LFACEP(LFACE) \
1986 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
1987 && EQ (AREF (LFACE, 0), Qface))
1992 /* Check consistency of Lisp face attribute vector ATTRS. */
1995 check_lface_attrs (attrs
)
1998 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
1999 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
2000 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2001 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
2002 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
2003 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
2004 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2005 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
2006 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2007 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2008 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
2009 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
2010 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2011 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2012 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2013 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
2014 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2015 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2016 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
2017 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2018 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2019 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
2020 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2021 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2022 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2023 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
2024 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2025 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2026 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2027 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2028 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2029 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2030 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2031 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
2032 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2033 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2034 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2035 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2036 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2037 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
2038 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2039 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2040 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
2041 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2042 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2043 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
2044 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2045 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2046 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
2047 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2048 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2049 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2050 #ifdef HAVE_WINDOW_SYSTEM
2051 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2052 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
2053 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2054 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2055 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2056 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
2057 || FONTP (attrs
[LFACE_FONT_INDEX
]));
2058 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
2059 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
2064 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2072 xassert (LFACEP (lface
));
2073 check_lface_attrs (XVECTOR (lface
)->contents
);
2077 #else /* GLYPH_DEBUG == 0 */
2079 #define check_lface_attrs(attrs) (void) 0
2080 #define check_lface(lface) (void) 0
2082 #endif /* GLYPH_DEBUG == 0 */
2086 /* Face-merge cycle checking. */
2088 enum named_merge_point_kind
2090 NAMED_MERGE_POINT_NORMAL
,
2091 NAMED_MERGE_POINT_REMAP
2094 /* A `named merge point' is simply a point during face-merging where we
2095 look up a face by name. We keep a stack of which named lookups we're
2096 currently processing so that we can easily detect cycles, using a
2097 linked- list of struct named_merge_point structures, typically
2098 allocated on the stack frame of the named lookup functions which are
2099 active (so no consing is required). */
2100 struct named_merge_point
2102 Lisp_Object face_name
;
2103 enum named_merge_point_kind named_merge_point_kind
;
2104 struct named_merge_point
*prev
;
2108 /* If a face merging cycle is detected for FACE_NAME, return 0,
2109 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
2110 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
2111 pointed to by NAMED_MERGE_POINTS, and return 1. */
2114 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
2115 Lisp_Object face_name
,
2116 enum named_merge_point_kind named_merge_point_kind
,
2117 struct named_merge_point
**named_merge_points
)
2119 struct named_merge_point
*prev
;
2121 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
2122 if (EQ (face_name
, prev
->face_name
))
2124 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
2125 /* A cycle, so fail. */
2127 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
2128 /* A remap `hides ' any previous normal merge points
2129 (because the remap means that it's actually different face),
2130 so as we know the current merge point must be normal, we
2131 can just assume it's OK. */
2135 new_named_merge_point
->face_name
= face_name
;
2136 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
2137 new_named_merge_point
->prev
= *named_merge_points
;
2139 *named_merge_points
= new_named_merge_point
;
2146 #if 0 /* Seems to be unused. */
2148 internal_resolve_face_name (nargs
, args
)
2152 return Fget (args
[0], args
[1]);
2156 resolve_face_name_error (ignore
)
2163 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2164 to make it a symbol. If FACE_NAME is an alias for another face,
2165 return that face's name.
2167 Return default face in case of errors. */
2170 resolve_face_name (face_name
, signal_p
)
2171 Lisp_Object face_name
;
2174 Lisp_Object orig_face
;
2175 Lisp_Object tortoise
, hare
;
2177 if (STRINGP (face_name
))
2178 face_name
= intern (SDATA (face_name
));
2180 if (NILP (face_name
) || !SYMBOLP (face_name
))
2183 orig_face
= face_name
;
2184 tortoise
= hare
= face_name
;
2189 hare
= Fget (hare
, Qface_alias
);
2190 if (NILP (hare
) || !SYMBOLP (hare
))
2194 hare
= Fget (hare
, Qface_alias
);
2195 if (NILP (hare
) || !SYMBOLP (hare
))
2198 tortoise
= Fget (tortoise
, Qface_alias
);
2199 if (EQ (hare
, tortoise
))
2202 xsignal1 (Qcircular_list
, orig_face
);
2211 /* Return the face definition of FACE_NAME on frame F. F null means
2212 return the definition for new frames. FACE_NAME may be a string or
2213 a symbol (apparently Emacs 20.2 allowed strings as face names in
2214 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2215 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2216 is zero, value is nil if FACE_NAME is not a valid face name. */
2217 static INLINE Lisp_Object
2218 lface_from_face_name_no_resolve (f
, face_name
, signal_p
)
2220 Lisp_Object face_name
;
2226 lface
= assq_no_quit (face_name
, f
->face_alist
);
2228 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2231 lface
= XCDR (lface
);
2233 signal_error ("Invalid face", face_name
);
2235 check_lface (lface
);
2240 /* Return the face definition of FACE_NAME on frame F. F null means
2241 return the definition for new frames. FACE_NAME may be a string or
2242 a symbol (apparently Emacs 20.2 allowed strings as face names in
2243 face text properties; Ediff uses that). If FACE_NAME is an alias
2244 for another face, return that face's definition. If SIGNAL_P is
2245 non-zero, signal an error if FACE_NAME is not a valid face name.
2246 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2248 static INLINE Lisp_Object
2249 lface_from_face_name (f
, face_name
, signal_p
)
2251 Lisp_Object face_name
;
2254 face_name
= resolve_face_name (face_name
, signal_p
);
2255 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2259 /* Get face attributes of face FACE_NAME from frame-local faces on
2260 frame F. Store the resulting attributes in ATTRS which must point
2261 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2262 is non-zero, signal an error if FACE_NAME does not name a face.
2263 Otherwise, value is zero if FACE_NAME is not a face. */
2266 get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
)
2268 Lisp_Object face_name
;
2274 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2277 bcopy (XVECTOR (lface
)->contents
, attrs
,
2278 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2280 return !NILP (lface
);
2283 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2284 F. Store the resulting attributes in ATTRS which must point to a
2285 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2286 alias for another face, use that face's definition. If SIGNAL_P is
2287 non-zero, signal an error if FACE_NAME does not name a face.
2288 Otherwise, value is zero if FACE_NAME is not a face. */
2291 get_lface_attributes (f
, face_name
, attrs
, signal_p
, named_merge_points
)
2293 Lisp_Object face_name
;
2296 struct named_merge_point
*named_merge_points
;
2298 Lisp_Object face_remapping
;
2300 face_name
= resolve_face_name (face_name
, signal_p
);
2302 /* See if SYMBOL has been remapped to some other face (usually this
2303 is done buffer-locally). */
2304 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2305 if (CONSP (face_remapping
))
2307 struct named_merge_point named_merge_point
;
2309 if (push_named_merge_point (&named_merge_point
,
2310 face_name
, NAMED_MERGE_POINT_REMAP
,
2311 &named_merge_points
))
2315 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2316 attrs
[i
] = Qunspecified
;
2318 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2319 signal_p
, named_merge_points
);
2323 /* Default case, no remapping. */
2324 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2328 /* Non-zero if all attributes in face attribute vector ATTRS are
2329 specified, i.e. are non-nil. */
2332 lface_fully_specified_p (attrs
)
2337 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2338 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2339 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
]))
2341 /* MAC_TODO: No stipple support on Mac OS yet, this index is
2342 always unspecified. */
2343 && i
!= LFACE_STIPPLE_INDEX
2348 return i
== LFACE_VECTOR_SIZE
;
2351 #ifdef HAVE_WINDOW_SYSTEM
2353 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2354 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2355 exception is `font' attribute. It is set to FONT_OBJECT regardless
2359 set_lface_from_font (f
, lface
, font_object
, force_p
)
2361 Lisp_Object lface
, font_object
;
2365 struct font
*font
= XFONT_OBJECT (font_object
);
2367 /* Set attributes only if unspecified, otherwise face defaults for
2368 new frames would never take effect. If the font doesn't have a
2369 specific property, set a normal value for that. */
2371 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2373 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2375 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2378 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2380 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2382 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2385 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2387 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2390 LFACE_HEIGHT (lface
) = make_number (pt
);
2393 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2395 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2396 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2398 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2400 val
= FONT_SLANT_FOR_FACE (font_object
);
2401 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2403 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2405 val
= FONT_WIDTH_FOR_FACE (font_object
);
2406 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2409 LFACE_FONT (lface
) = font_object
;
2413 #endif /* HAVE_WINDOW_SYSTEM */
2416 /* Merges the face height FROM with the face height TO, and returns the
2417 merged height. If FROM is an invalid height, then INVALID is
2418 returned instead. FROM and TO may be either absolute face heights or
2419 `relative' heights; the returned value is always an absolute height
2420 unless both FROM and TO are relative. GCPRO is a lisp value that
2421 will be protected from garbage-collection if this function makes a
2425 merge_face_heights (from
, to
, invalid
)
2426 Lisp_Object from
, to
, invalid
;
2428 Lisp_Object result
= invalid
;
2430 if (INTEGERP (from
))
2431 /* FROM is absolute, just use it as is. */
2433 else if (FLOATP (from
))
2434 /* FROM is a scale, use it to adjust TO. */
2437 /* relative X absolute => absolute */
2438 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2439 else if (FLOATP (to
))
2440 /* relative X relative => relative */
2441 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2442 else if (UNSPECIFIEDP (to
))
2445 else if (FUNCTIONP (from
))
2446 /* FROM is a function, which use to adjust TO. */
2448 /* Call function with current height as argument.
2449 From is the new height. */
2450 Lisp_Object args
[2];
2454 result
= safe_call (2, args
);
2456 /* Ensure that if TO was absolute, so is the result. */
2457 if (INTEGERP (to
) && !INTEGERP (result
))
2465 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2466 store the resulting attributes in TO, which must be already be
2467 completely specified and contain only absolute attributes. Every
2468 specified attribute of FROM overrides the corresponding attribute of
2469 TO; relative attributes in FROM are merged with the absolute value in
2470 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2471 loops in face inheritance/remapping; it should be 0 when called from
2475 merge_face_vectors (f
, from
, to
, named_merge_points
)
2477 Lisp_Object
*from
, *to
;
2478 struct named_merge_point
*named_merge_points
;
2482 /* If FROM inherits from some other faces, merge their attributes into
2483 TO before merging FROM's direct attributes. Note that an :inherit
2484 attribute of `unspecified' is the same as one of nil; we never
2485 merge :inherit attributes, so nil is more correct, but lots of
2486 other code uses `unspecified' as a generic value for face attributes. */
2487 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2488 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2489 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2491 i
= LFACE_FONT_INDEX
;
2492 if (!UNSPECIFIEDP (from
[i
]))
2494 if (!UNSPECIFIEDP (to
[i
]))
2495 to
[i
] = Fmerge_font_spec (from
[i
], to
[i
]);
2497 to
[i
] = Fcopy_font_spec (from
[i
]);
2498 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2501 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2502 if (!UNSPECIFIEDP (from
[i
]))
2504 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2506 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2507 font_clear_prop (to
, FONT_SIZE_INDEX
);
2509 else if (i
!= LFACE_FONT_INDEX
)
2512 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2513 font_clear_prop (to
,
2514 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2515 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2516 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2517 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2518 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2519 : FONT_SLANT_INDEX
));
2523 /* If `font' attribute is specified, reflect the font properties in
2524 it to the other attributes. */
2525 if (0 && !UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2526 font_update_lface (f
, to
);
2528 /* TO is always an absolute face, which should inherit from nothing.
2529 We blindly copy the :inherit attribute above and fix it up here. */
2530 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2533 /* Merge the named face FACE_NAME on frame F, into the vector of face
2534 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2535 inheritance. Returns true if FACE_NAME is a valid face name and
2536 merging succeeded. */
2539 merge_named_face (f
, face_name
, to
, named_merge_points
)
2541 Lisp_Object face_name
;
2543 struct named_merge_point
*named_merge_points
;
2545 struct named_merge_point named_merge_point
;
2547 if (push_named_merge_point (&named_merge_point
,
2548 face_name
, NAMED_MERGE_POINT_NORMAL
,
2549 &named_merge_points
))
2551 struct gcpro gcpro1
;
2552 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2553 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2557 GCPRO1 (named_merge_point
.face_name
);
2558 merge_face_vectors (f
, from
, to
, named_merge_points
);
2569 /* Merge face attributes from the lisp `face reference' FACE_REF on
2570 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2571 problems with FACE_REF cause an error message to be shown. Return
2572 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2573 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2574 list structure; it may be 0 for most callers.
2576 FACE_REF may be a single face specification or a list of such
2577 specifications. Each face specification can be:
2579 1. A symbol or string naming a Lisp face.
2581 2. A property list of the form (KEYWORD VALUE ...) where each
2582 KEYWORD is a face attribute name, and value is an appropriate value
2585 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2586 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2587 for compatibility with 20.2.
2589 Face specifications earlier in lists take precedence over later
2593 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
2595 Lisp_Object face_ref
;
2598 struct named_merge_point
*named_merge_points
;
2600 int ok
= 1; /* Succeed without an error? */
2602 if (CONSP (face_ref
))
2604 Lisp_Object first
= XCAR (face_ref
);
2606 if (EQ (first
, Qforeground_color
)
2607 || EQ (first
, Qbackground_color
))
2609 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2610 . COLOR). COLOR must be a string. */
2611 Lisp_Object color_name
= XCDR (face_ref
);
2612 Lisp_Object color
= first
;
2614 if (STRINGP (color_name
))
2616 if (EQ (color
, Qforeground_color
))
2617 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2619 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2624 add_to_log ("Invalid face color", color_name
, Qnil
);
2628 else if (SYMBOLP (first
)
2629 && *SDATA (SYMBOL_NAME (first
)) == ':')
2631 /* Assume this is the property list form. */
2632 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2634 Lisp_Object keyword
= XCAR (face_ref
);
2635 Lisp_Object value
= XCAR (XCDR (face_ref
));
2638 /* Specifying `unspecified' is a no-op. */
2639 if (EQ (value
, Qunspecified
))
2641 else if (EQ (keyword
, QCfamily
))
2643 if (STRINGP (value
))
2645 to
[LFACE_FAMILY_INDEX
] = value
;
2646 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2651 else if (EQ (keyword
, QCfoundry
))
2653 if (STRINGP (value
))
2655 to
[LFACE_FOUNDRY_INDEX
] = value
;
2656 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2661 else if (EQ (keyword
, QCheight
))
2663 Lisp_Object new_height
=
2664 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2666 if (! NILP (new_height
))
2668 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2669 font_clear_prop (to
, FONT_SIZE_INDEX
);
2674 else if (EQ (keyword
, QCweight
))
2676 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2678 to
[LFACE_WEIGHT_INDEX
] = value
;
2679 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2684 else if (EQ (keyword
, QCslant
))
2686 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2688 to
[LFACE_SLANT_INDEX
] = value
;
2689 font_clear_prop (to
, FONT_SLANT_INDEX
);
2694 else if (EQ (keyword
, QCunderline
))
2699 to
[LFACE_UNDERLINE_INDEX
] = value
;
2703 else if (EQ (keyword
, QCoverline
))
2708 to
[LFACE_OVERLINE_INDEX
] = value
;
2712 else if (EQ (keyword
, QCstrike_through
))
2717 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2721 else if (EQ (keyword
, QCbox
))
2724 value
= make_number (1);
2725 if (INTEGERP (value
)
2729 to
[LFACE_BOX_INDEX
] = value
;
2733 else if (EQ (keyword
, QCinverse_video
)
2734 || EQ (keyword
, QCreverse_video
))
2736 if (EQ (value
, Qt
) || NILP (value
))
2737 to
[LFACE_INVERSE_INDEX
] = value
;
2741 else if (EQ (keyword
, QCforeground
))
2743 if (STRINGP (value
))
2744 to
[LFACE_FOREGROUND_INDEX
] = value
;
2748 else if (EQ (keyword
, QCbackground
))
2750 if (STRINGP (value
))
2751 to
[LFACE_BACKGROUND_INDEX
] = value
;
2755 else if (EQ (keyword
, QCstipple
))
2757 #ifdef HAVE_X_WINDOWS
2758 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2759 if (!NILP (pixmap_p
))
2760 to
[LFACE_STIPPLE_INDEX
] = value
;
2765 else if (EQ (keyword
, QCwidth
))
2767 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2769 to
[LFACE_SWIDTH_INDEX
] = value
;
2770 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2775 else if (EQ (keyword
, QCinherit
))
2777 /* This is not really very useful; it's just like a
2778 normal face reference. */
2779 if (! merge_face_ref (f
, value
, to
,
2780 err_msgs
, named_merge_points
))
2788 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2792 face_ref
= XCDR (XCDR (face_ref
));
2797 /* This is a list of face refs. Those at the beginning of the
2798 list take precedence over what follows, so we have to merge
2799 from the end backwards. */
2800 Lisp_Object next
= XCDR (face_ref
);
2803 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2805 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2811 /* FACE_REF ought to be a face name. */
2812 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2813 if (!ok
&& err_msgs
)
2814 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2821 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2822 Sinternal_make_lisp_face
, 1, 2, 0,
2823 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2824 If FACE was not known as a face before, create a new one.
2825 If optional argument FRAME is specified, make a frame-local face
2826 for that frame. Otherwise operate on the global face definition.
2827 Value is a vector of face attributes. */)
2829 Lisp_Object face
, frame
;
2831 Lisp_Object global_lface
, lface
;
2835 CHECK_SYMBOL (face
);
2836 global_lface
= lface_from_face_name (NULL
, face
, 0);
2840 CHECK_LIVE_FRAME (frame
);
2842 lface
= lface_from_face_name (f
, face
, 0);
2845 f
= NULL
, lface
= Qnil
;
2847 /* Add a global definition if there is none. */
2848 if (NILP (global_lface
))
2850 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2852 ASET (global_lface
, 0, Qface
);
2853 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2854 Vface_new_frame_defaults
);
2856 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2857 face id to Lisp face is given by the vector lface_id_to_name.
2858 The mapping from Lisp face to Lisp face id is given by the
2859 property `face' of the Lisp face name. */
2860 if (next_lface_id
== lface_id_to_name_size
)
2862 int new_size
= max (50, 2 * lface_id_to_name_size
);
2863 int sz
= new_size
* sizeof *lface_id_to_name
;
2864 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2865 lface_id_to_name_size
= new_size
;
2868 lface_id_to_name
[next_lface_id
] = face
;
2869 Fput (face
, Qface
, make_number (next_lface_id
));
2873 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2874 ASET (global_lface
, i
, Qunspecified
);
2876 /* Add a frame-local definition. */
2881 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2883 ASET (lface
, 0, Qface
);
2884 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2887 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2888 ASET (lface
, i
, Qunspecified
);
2891 lface
= global_lface
;
2893 /* Changing a named face means that all realized faces depending on
2894 that face are invalid. Since we cannot tell which realized faces
2895 depend on the face, make sure they are all removed. This is done
2896 by incrementing face_change_count. The next call to
2897 init_iterator will then free realized faces. */
2898 if (NILP (Fget (face
, Qface_no_inherit
)))
2900 ++face_change_count
;
2901 ++windows_or_buffers_changed
;
2904 xassert (LFACEP (lface
));
2905 check_lface (lface
);
2910 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2911 Sinternal_lisp_face_p
, 1, 2, 0,
2912 doc
: /* Return non-nil if FACE names a face.
2913 If optional second argument FRAME is non-nil, check for the
2914 existence of a frame-local face with name FACE on that frame.
2915 Otherwise check for the existence of a global face. */)
2917 Lisp_Object face
, frame
;
2921 face
= resolve_face_name (face
, 1);
2925 CHECK_LIVE_FRAME (frame
);
2926 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2929 lface
= lface_from_face_name (NULL
, face
, 0);
2935 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2936 Sinternal_copy_lisp_face
, 4, 4, 0,
2937 doc
: /* Copy face FROM to TO.
2938 If FRAME is t, copy the global face definition of FROM.
2939 Otherwise, copy the frame-local definition of FROM on FRAME.
2940 If NEW-FRAME is a frame, copy that data into the frame-local
2941 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2942 FRAME controls where the data is copied to.
2944 The value is TO. */)
2945 (from
, to
, frame
, new_frame
)
2946 Lisp_Object from
, to
, frame
, new_frame
;
2948 Lisp_Object lface
, copy
;
2950 CHECK_SYMBOL (from
);
2955 /* Copy global definition of FROM. We don't make copies of
2956 strings etc. because 20.2 didn't do it either. */
2957 lface
= lface_from_face_name (NULL
, from
, 1);
2958 copy
= Finternal_make_lisp_face (to
, Qnil
);
2962 /* Copy frame-local definition of FROM. */
2963 if (NILP (new_frame
))
2965 CHECK_LIVE_FRAME (frame
);
2966 CHECK_LIVE_FRAME (new_frame
);
2967 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2968 copy
= Finternal_make_lisp_face (to
, new_frame
);
2971 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
2972 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2974 /* Changing a named face means that all realized faces depending on
2975 that face are invalid. Since we cannot tell which realized faces
2976 depend on the face, make sure they are all removed. This is done
2977 by incrementing face_change_count. The next call to
2978 init_iterator will then free realized faces. */
2979 if (NILP (Fget (to
, Qface_no_inherit
)))
2981 ++face_change_count
;
2982 ++windows_or_buffers_changed
;
2989 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2990 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2991 doc
: /* Set attribute ATTR of FACE to VALUE.
2992 FRAME being a frame means change the face on that frame.
2993 FRAME nil means change the face of the selected frame.
2994 FRAME t means change the default for new frames.
2995 FRAME 0 means change the face on all frames, and change the default
2997 (face
, attr
, value
, frame
)
2998 Lisp_Object face
, attr
, value
, frame
;
3001 Lisp_Object old_value
= Qnil
;
3002 /* Set one of enum font_property_index (> 0) if ATTR is one of
3003 font-related attributes other than QCfont and QCfontset. */
3004 enum font_property_index prop_index
= 0;
3006 CHECK_SYMBOL (face
);
3007 CHECK_SYMBOL (attr
);
3009 face
= resolve_face_name (face
, 1);
3011 /* If FRAME is 0, change face on all frames, and change the
3012 default for new frames. */
3013 if (INTEGERP (frame
) && XINT (frame
) == 0)
3016 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3017 FOR_EACH_FRAME (tail
, frame
)
3018 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3022 /* Set lface to the Lisp attribute vector of FACE. */
3025 lface
= lface_from_face_name (NULL
, face
, 1);
3027 /* When updating face-new-frame-defaults, we put :ignore-defface
3028 where the caller wants `unspecified'. This forces the frame
3029 defaults to ignore the defface value. Otherwise, the defface
3030 will take effect, which is generally not what is intended.
3031 The value of that attribute will be inherited from some other
3032 face during face merging. See internal_merge_in_global_face. */
3033 if (UNSPECIFIEDP (value
))
3034 value
= Qignore_defface
;
3039 frame
= selected_frame
;
3041 CHECK_LIVE_FRAME (frame
);
3042 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3044 /* If a frame-local face doesn't exist yet, create one. */
3046 lface
= Finternal_make_lisp_face (face
, frame
);
3049 if (EQ (attr
, QCfamily
))
3051 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3053 CHECK_STRING (value
);
3054 if (SCHARS (value
) == 0)
3055 signal_error ("Invalid face family", value
);
3057 old_value
= LFACE_FAMILY (lface
);
3058 LFACE_FAMILY (lface
) = value
;
3059 prop_index
= FONT_FAMILY_INDEX
;
3061 else if (EQ (attr
, QCfoundry
))
3063 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3065 CHECK_STRING (value
);
3066 if (SCHARS (value
) == 0)
3067 signal_error ("Invalid face foundry", value
);
3069 old_value
= LFACE_FOUNDRY (lface
);
3070 LFACE_FOUNDRY (lface
) = value
;
3071 prop_index
= FONT_FOUNDRY_INDEX
;
3073 else if (EQ (attr
, QCheight
))
3075 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3079 test
= (EQ (face
, Qdefault
)
3081 /* The default face must have an absolute size,
3082 otherwise, we do a test merge with a random
3083 height to see if VALUE's ok. */
3084 : merge_face_heights (value
, make_number (10), Qnil
));
3086 if (!INTEGERP (test
) || XINT (test
) <= 0)
3087 signal_error ("Invalid face height", value
);
3090 old_value
= LFACE_HEIGHT (lface
);
3091 LFACE_HEIGHT (lface
) = value
;
3092 prop_index
= FONT_SIZE_INDEX
;
3094 else if (EQ (attr
, QCweight
))
3096 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3098 CHECK_SYMBOL (value
);
3099 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
3100 signal_error ("Invalid face weight", value
);
3102 old_value
= LFACE_WEIGHT (lface
);
3103 LFACE_WEIGHT (lface
) = value
;
3104 prop_index
= FONT_WEIGHT_INDEX
;
3106 else if (EQ (attr
, QCslant
))
3108 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3110 CHECK_SYMBOL (value
);
3111 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
3112 signal_error ("Invalid face slant", value
);
3114 old_value
= LFACE_SLANT (lface
);
3115 LFACE_SLANT (lface
) = value
;
3116 prop_index
= FONT_SLANT_INDEX
;
3118 else if (EQ (attr
, QCunderline
))
3120 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3121 if ((SYMBOLP (value
)
3123 && !EQ (value
, Qnil
))
3124 /* Underline color. */
3126 && SCHARS (value
) == 0))
3127 signal_error ("Invalid face underline", value
);
3129 old_value
= LFACE_UNDERLINE (lface
);
3130 LFACE_UNDERLINE (lface
) = value
;
3132 else if (EQ (attr
, QCoverline
))
3134 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3135 if ((SYMBOLP (value
)
3137 && !EQ (value
, Qnil
))
3138 /* Overline color. */
3140 && SCHARS (value
) == 0))
3141 signal_error ("Invalid face overline", value
);
3143 old_value
= LFACE_OVERLINE (lface
);
3144 LFACE_OVERLINE (lface
) = value
;
3146 else if (EQ (attr
, QCstrike_through
))
3148 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3149 if ((SYMBOLP (value
)
3151 && !EQ (value
, Qnil
))
3152 /* Strike-through color. */
3154 && SCHARS (value
) == 0))
3155 signal_error ("Invalid face strike-through", value
);
3157 old_value
= LFACE_STRIKE_THROUGH (lface
);
3158 LFACE_STRIKE_THROUGH (lface
) = value
;
3160 else if (EQ (attr
, QCbox
))
3164 /* Allow t meaning a simple box of width 1 in foreground color
3167 value
= make_number (1);
3169 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3171 else if (NILP (value
))
3173 else if (INTEGERP (value
))
3174 valid_p
= XINT (value
) != 0;
3175 else if (STRINGP (value
))
3176 valid_p
= SCHARS (value
) > 0;
3177 else if (CONSP (value
))
3193 if (EQ (k
, QCline_width
))
3195 if (!INTEGERP (v
) || XINT (v
) == 0)
3198 else if (EQ (k
, QCcolor
))
3200 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3203 else if (EQ (k
, QCstyle
))
3205 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3212 valid_p
= NILP (tem
);
3218 signal_error ("Invalid face box", value
);
3220 old_value
= LFACE_BOX (lface
);
3221 LFACE_BOX (lface
) = value
;
3223 else if (EQ (attr
, QCinverse_video
)
3224 || EQ (attr
, QCreverse_video
))
3226 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3228 CHECK_SYMBOL (value
);
3229 if (!EQ (value
, Qt
) && !NILP (value
))
3230 signal_error ("Invalid inverse-video face attribute value", value
);
3232 old_value
= LFACE_INVERSE (lface
);
3233 LFACE_INVERSE (lface
) = value
;
3235 else if (EQ (attr
, QCforeground
))
3237 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3239 /* Don't check for valid color names here because it depends
3240 on the frame (display) whether the color will be valid
3241 when the face is realized. */
3242 CHECK_STRING (value
);
3243 if (SCHARS (value
) == 0)
3244 signal_error ("Empty foreground color value", value
);
3246 old_value
= LFACE_FOREGROUND (lface
);
3247 LFACE_FOREGROUND (lface
) = value
;
3249 else if (EQ (attr
, QCbackground
))
3251 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3253 /* Don't check for valid color names here because it depends
3254 on the frame (display) whether the color will be valid
3255 when the face is realized. */
3256 CHECK_STRING (value
);
3257 if (SCHARS (value
) == 0)
3258 signal_error ("Empty background color value", value
);
3260 old_value
= LFACE_BACKGROUND (lface
);
3261 LFACE_BACKGROUND (lface
) = value
;
3263 else if (EQ (attr
, QCstipple
))
3265 #ifdef HAVE_X_WINDOWS
3266 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3268 && NILP (Fbitmap_spec_p (value
)))
3269 signal_error ("Invalid stipple attribute", value
);
3270 old_value
= LFACE_STIPPLE (lface
);
3271 LFACE_STIPPLE (lface
) = value
;
3272 #endif /* HAVE_X_WINDOWS */
3274 else if (EQ (attr
, QCwidth
))
3276 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3278 CHECK_SYMBOL (value
);
3279 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3280 signal_error ("Invalid face width", value
);
3282 old_value
= LFACE_SWIDTH (lface
);
3283 LFACE_SWIDTH (lface
) = value
;
3284 prop_index
= FONT_WIDTH_INDEX
;
3286 else if (EQ (attr
, QCfont
))
3288 #ifdef HAVE_WINDOW_SYSTEM
3289 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3291 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3295 old_value
= LFACE_FONT (lface
);
3296 if (! FONTP (value
))
3298 if (STRINGP (value
))
3300 int fontset
= fs_query_fontset (value
, 0);
3303 value
= fontset_ascii (fontset
);
3304 value
= font_spec_from_name (value
);
3307 signal_error ("Invalid font or font-spec", value
);
3310 f
= XFRAME (selected_frame
);
3313 if (! FONT_OBJECT_P (value
))
3315 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3316 Lisp_Object font_object
;
3318 font_object
= font_load_for_lface (f
, attrs
, value
);
3319 if (NILP (font_object
))
3320 signal_error ("Font not available", value
);
3321 value
= font_object
;
3323 set_lface_from_font (f
, lface
, value
, 1);
3326 LFACE_FONT (lface
) = value
;
3328 #endif /* HAVE_WINDOW_SYSTEM */
3330 else if (EQ (attr
, QCfontset
))
3332 #ifdef HAVE_WINDOW_SYSTEM
3333 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3337 old_value
= LFACE_FONTSET (lface
);
3338 tmp
= Fquery_fontset (value
, Qnil
);
3340 signal_error ("Invalid fontset name", value
);
3341 LFACE_FONTSET (lface
) = value
= tmp
;
3343 #endif /* HAVE_WINDOW_SYSTEM */
3345 else if (EQ (attr
, QCinherit
))
3348 if (SYMBOLP (value
))
3351 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3352 if (!SYMBOLP (XCAR (tail
)))
3355 LFACE_INHERIT (lface
) = value
;
3357 signal_error ("Invalid face inheritance", value
);
3359 else if (EQ (attr
, QCbold
))
3361 old_value
= LFACE_WEIGHT (lface
);
3362 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3363 prop_index
= FONT_WEIGHT_INDEX
;
3365 else if (EQ (attr
, QCitalic
))
3368 old_value
= LFACE_SLANT (lface
);
3369 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3370 prop_index
= FONT_SLANT_INDEX
;
3373 signal_error ("Invalid face attribute name", attr
);
3376 /* If a font-related attribute other than QCfont and QCfontset is
3377 specified, and if the original QCfont attribute has a font
3378 (font-spec or font-object), set the corresponding property in
3379 the font to nil so that the font selector doesn't think that
3380 the attribute is mandatory. */
3381 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3383 /* Changing a named face means that all realized faces depending on
3384 that face are invalid. Since we cannot tell which realized faces
3385 depend on the face, make sure they are all removed. This is done
3386 by incrementing face_change_count. The next call to
3387 init_iterator will then free realized faces. */
3389 && NILP (Fget (face
, Qface_no_inherit
))
3390 && NILP (Fequal (old_value
, value
)))
3392 ++face_change_count
;
3393 ++windows_or_buffers_changed
;
3396 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3397 && NILP (Fequal (old_value
, value
)))
3403 if (EQ (face
, Qdefault
))
3405 #ifdef HAVE_WINDOW_SYSTEM
3406 /* Changed font-related attributes of the `default' face are
3407 reflected in changed `font' frame parameters. */
3409 && (prop_index
|| EQ (attr
, QCfont
))
3410 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3411 set_font_frame_param (frame
, lface
);
3413 #endif /* HAVE_WINDOW_SYSTEM */
3415 if (EQ (attr
, QCforeground
))
3416 param
= Qforeground_color
;
3417 else if (EQ (attr
, QCbackground
))
3418 param
= Qbackground_color
;
3420 #ifdef HAVE_WINDOW_SYSTEM
3422 else if (EQ (face
, Qscroll_bar
))
3424 /* Changing the colors of `scroll-bar' sets frame parameters
3425 `scroll-bar-foreground' and `scroll-bar-background'. */
3426 if (EQ (attr
, QCforeground
))
3427 param
= Qscroll_bar_foreground
;
3428 else if (EQ (attr
, QCbackground
))
3429 param
= Qscroll_bar_background
;
3431 #endif /* not WINDOWSNT */
3432 else if (EQ (face
, Qborder
))
3434 /* Changing background color of `border' sets frame parameter
3436 if (EQ (attr
, QCbackground
))
3437 param
= Qborder_color
;
3439 else if (EQ (face
, Qcursor
))
3441 /* Changing background color of `cursor' sets frame parameter
3443 if (EQ (attr
, QCbackground
))
3444 param
= Qcursor_color
;
3446 else if (EQ (face
, Qmouse
))
3448 /* Changing background color of `mouse' sets frame parameter
3450 if (EQ (attr
, QCbackground
))
3451 param
= Qmouse_color
;
3453 #endif /* HAVE_WINDOW_SYSTEM */
3454 else if (EQ (face
, Qmenu
))
3456 /* Indicate that we have to update the menu bar when
3457 realizing faces on FRAME. FRAME t change the
3458 default for new frames. We do this by setting
3459 setting the flag in new face caches */
3462 struct frame
*f
= XFRAME (frame
);
3463 if (FRAME_FACE_CACHE (f
) == NULL
)
3464 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3465 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3468 menu_face_changed_default
= 1;
3474 /* Update `default-frame-alist', which is used for new frames. */
3476 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3479 /* Update the current frame's parameters. */
3482 cons
= XCAR (Vparam_value_alist
);
3483 XSETCAR (cons
, param
);
3484 XSETCDR (cons
, value
);
3485 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3494 #ifdef HAVE_WINDOW_SYSTEM
3496 /* Set the `font' frame parameter of FRAME determined from the
3497 font-object set in `default' face attributes LFACE. */
3500 set_font_frame_param (frame
, lface
)
3501 Lisp_Object frame
, lface
;
3503 struct frame
*f
= XFRAME (frame
);
3506 if (FRAME_WINDOW_P (f
)
3507 /* Don't do anything if the font is `unspecified'. This can
3508 happen during frame creation. */
3509 && (font
= LFACE_FONT (lface
),
3510 ! UNSPECIFIEDP (font
)))
3512 if (FONT_SPEC_P (font
))
3514 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3517 LFACE_FONT (lface
) = font
;
3519 f
->default_face_done_p
= 0;
3520 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3525 /* Update the corresponding face when frame parameter PARAM on frame F
3526 has been assigned the value NEW_VALUE. */
3529 update_face_from_frame_parameter (f
, param
, new_value
)
3531 Lisp_Object param
, new_value
;
3533 Lisp_Object face
= Qnil
;
3536 /* If there are no faces yet, give up. This is the case when called
3537 from Fx_create_frame, and we do the necessary things later in
3538 face-set-after-frame-defaults. */
3539 if (NILP (f
->face_alist
))
3542 if (EQ (param
, Qforeground_color
))
3545 lface
= lface_from_face_name (f
, face
, 1);
3546 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3547 ? new_value
: Qunspecified
);
3548 realize_basic_faces (f
);
3550 else if (EQ (param
, Qbackground_color
))
3554 /* Changing the background color might change the background
3555 mode, so that we have to load new defface specs.
3556 Call frame-update-face-colors to do that. */
3557 XSETFRAME (frame
, f
);
3558 call1 (Qframe_set_background_mode
, frame
);
3561 lface
= lface_from_face_name (f
, face
, 1);
3562 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3563 ? new_value
: Qunspecified
);
3564 realize_basic_faces (f
);
3566 else if (EQ (param
, Qborder_color
))
3569 lface
= lface_from_face_name (f
, face
, 1);
3570 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3571 ? new_value
: Qunspecified
);
3573 else if (EQ (param
, Qcursor_color
))
3576 lface
= lface_from_face_name (f
, face
, 1);
3577 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3578 ? new_value
: Qunspecified
);
3580 else if (EQ (param
, Qmouse_color
))
3583 lface
= lface_from_face_name (f
, face
, 1);
3584 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3585 ? new_value
: Qunspecified
);
3588 /* Changing a named face means that all realized faces depending on
3589 that face are invalid. Since we cannot tell which realized faces
3590 depend on the face, make sure they are all removed. This is done
3591 by incrementing face_change_count. The next call to
3592 init_iterator will then free realized faces. */
3594 && NILP (Fget (face
, Qface_no_inherit
)))
3596 ++face_change_count
;
3597 ++windows_or_buffers_changed
;
3602 /* Get the value of X resource RESOURCE, class CLASS for the display
3603 of frame FRAME. This is here because ordinary `x-get-resource'
3604 doesn't take a frame argument. */
3606 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3607 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3608 (resource
, class, frame
)
3609 Lisp_Object resource
, class, frame
;
3611 Lisp_Object value
= Qnil
;
3612 CHECK_STRING (resource
);
3613 CHECK_STRING (class);
3614 CHECK_LIVE_FRAME (frame
);
3616 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3617 resource
, class, Qnil
, Qnil
);
3623 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3624 If VALUE is "on" or "true", return t. If VALUE is "off" or
3625 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3626 error; if SIGNAL_P is zero, return 0. */
3629 face_boolean_x_resource_value (value
, signal_p
)
3633 Lisp_Object result
= make_number (0);
3635 xassert (STRINGP (value
));
3637 if (xstrcasecmp (SDATA (value
), "on") == 0
3638 || xstrcasecmp (SDATA (value
), "true") == 0)
3640 else if (xstrcasecmp (SDATA (value
), "off") == 0
3641 || xstrcasecmp (SDATA (value
), "false") == 0)
3643 else if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3644 result
= Qunspecified
;
3646 signal_error ("Invalid face attribute value from X resource", value
);
3652 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3653 Finternal_set_lisp_face_attribute_from_resource
,
3654 Sinternal_set_lisp_face_attribute_from_resource
,
3655 3, 4, 0, doc
: /* */)
3656 (face
, attr
, value
, frame
)
3657 Lisp_Object face
, attr
, value
, frame
;
3659 CHECK_SYMBOL (face
);
3660 CHECK_SYMBOL (attr
);
3661 CHECK_STRING (value
);
3663 if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3664 value
= Qunspecified
;
3665 else if (EQ (attr
, QCheight
))
3667 value
= Fstring_to_number (value
, make_number (10));
3668 if (XINT (value
) <= 0)
3669 signal_error ("Invalid face height from X resource", value
);
3671 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3672 value
= face_boolean_x_resource_value (value
, 1);
3673 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3674 value
= intern (SDATA (value
));
3675 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3676 value
= face_boolean_x_resource_value (value
, 1);
3677 else if (EQ (attr
, QCunderline
)
3678 || EQ (attr
, QCoverline
)
3679 || EQ (attr
, QCstrike_through
))
3681 Lisp_Object boolean_value
;
3683 /* If the result of face_boolean_x_resource_value is t or nil,
3684 VALUE does NOT specify a color. */
3685 boolean_value
= face_boolean_x_resource_value (value
, 0);
3686 if (SYMBOLP (boolean_value
))
3687 value
= boolean_value
;
3689 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3690 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3692 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3695 #endif /* HAVE_WINDOW_SYSTEM */
3698 /***********************************************************************
3700 ***********************************************************************/
3702 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3704 /* Make menus on frame F appear as specified by the `menu' face. */
3707 x_update_menu_appearance (f
)
3710 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3714 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3718 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3719 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3720 const char *myname
= SDATA (Vx_resource_name
);
3723 const char *popup_path
= "popup_menu";
3725 const char *popup_path
= "menu.popup";
3728 if (STRINGP (LFACE_FOREGROUND (lface
)))
3730 sprintf (line
, "%s.%s*foreground: %s",
3732 SDATA (LFACE_FOREGROUND (lface
)));
3733 XrmPutLineResource (&rdb
, line
);
3734 sprintf (line
, "%s.pane.menubar*foreground: %s",
3735 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3736 XrmPutLineResource (&rdb
, line
);
3740 if (STRINGP (LFACE_BACKGROUND (lface
)))
3742 sprintf (line
, "%s.%s*background: %s",
3744 SDATA (LFACE_BACKGROUND (lface
)));
3745 XrmPutLineResource (&rdb
, line
);
3746 sprintf (line
, "%s.pane.menubar*background: %s",
3747 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3748 XrmPutLineResource (&rdb
, line
);
3753 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3754 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3755 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3756 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3757 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3758 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3760 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3762 const char *suffix
= "List";
3765 #if defined HAVE_X_I18N
3767 const char *suffix
= "Set";
3769 const char *suffix
= "";
3776 #if defined HAVE_X_I18N
3777 extern char *xic_create_fontsetname
3778 P_ ((char *base_fontname
, Bool motif
));
3779 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3781 char *fontsetname
= (char *) SDATA (xlfd
);
3783 sprintf (line
, "%s.pane.menubar*font%s: %s",
3784 myname
, suffix
, fontsetname
);
3785 XrmPutLineResource (&rdb
, line
);
3786 sprintf (line
, "%s.%s*font%s: %s",
3787 myname
, popup_path
, suffix
, fontsetname
);
3788 XrmPutLineResource (&rdb
, line
);
3790 if (fontsetname
!= (char *) SDATA (xlfd
))
3791 xfree (fontsetname
);
3795 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3796 free_frame_menubar (f
);
3800 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3803 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3804 Sface_attribute_relative_p
,
3806 doc
: /* Check whether a face attribute value is relative.
3807 Specifically, this function returns t if the attribute ATTRIBUTE
3808 with the value VALUE is relative.
3810 A relative value is one that doesn't entirely override whatever is
3811 inherited from another face. For most possible attributes,
3812 the only relative value that users see is `unspecified'.
3813 However, for :height, floating point values are also relative. */)
3815 Lisp_Object attribute
, value
;
3817 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3819 else if (EQ (attribute
, QCheight
))
3820 return INTEGERP (value
) ? Qnil
: Qt
;
3825 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3827 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3828 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3829 the result will be absolute, otherwise it will be relative. */)
3830 (attribute
, value1
, value2
)
3831 Lisp_Object attribute
, value1
, value2
;
3833 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3835 else if (EQ (attribute
, QCheight
))
3836 return merge_face_heights (value1
, value2
, value1
);
3842 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3843 Sinternal_get_lisp_face_attribute
,
3845 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3846 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3847 face attribute name, signal an error.
3848 If the optional argument FRAME is given, report on face SYMBOL in that
3849 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3850 frames). If FRAME is omitted or nil, use the selected frame. */)
3851 (symbol
, keyword
, frame
)
3852 Lisp_Object symbol
, keyword
, frame
;
3854 Lisp_Object lface
, value
= Qnil
;
3856 CHECK_SYMBOL (symbol
);
3857 CHECK_SYMBOL (keyword
);
3860 lface
= lface_from_face_name (NULL
, symbol
, 1);
3864 frame
= selected_frame
;
3865 CHECK_LIVE_FRAME (frame
);
3866 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3869 if (EQ (keyword
, QCfamily
))
3870 value
= LFACE_FAMILY (lface
);
3871 else if (EQ (keyword
, QCfoundry
))
3872 value
= LFACE_FOUNDRY (lface
);
3873 else if (EQ (keyword
, QCheight
))
3874 value
= LFACE_HEIGHT (lface
);
3875 else if (EQ (keyword
, QCweight
))
3876 value
= LFACE_WEIGHT (lface
);
3877 else if (EQ (keyword
, QCslant
))
3878 value
= LFACE_SLANT (lface
);
3879 else if (EQ (keyword
, QCunderline
))
3880 value
= LFACE_UNDERLINE (lface
);
3881 else if (EQ (keyword
, QCoverline
))
3882 value
= LFACE_OVERLINE (lface
);
3883 else if (EQ (keyword
, QCstrike_through
))
3884 value
= LFACE_STRIKE_THROUGH (lface
);
3885 else if (EQ (keyword
, QCbox
))
3886 value
= LFACE_BOX (lface
);
3887 else if (EQ (keyword
, QCinverse_video
)
3888 || EQ (keyword
, QCreverse_video
))
3889 value
= LFACE_INVERSE (lface
);
3890 else if (EQ (keyword
, QCforeground
))
3891 value
= LFACE_FOREGROUND (lface
);
3892 else if (EQ (keyword
, QCbackground
))
3893 value
= LFACE_BACKGROUND (lface
);
3894 else if (EQ (keyword
, QCstipple
))
3895 value
= LFACE_STIPPLE (lface
);
3896 else if (EQ (keyword
, QCwidth
))
3897 value
= LFACE_SWIDTH (lface
);
3898 else if (EQ (keyword
, QCinherit
))
3899 value
= LFACE_INHERIT (lface
);
3900 else if (EQ (keyword
, QCfont
))
3901 value
= LFACE_FONT (lface
);
3902 else if (EQ (keyword
, QCfontset
))
3903 value
= LFACE_FONTSET (lface
);
3905 signal_error ("Invalid face attribute name", keyword
);
3907 if (IGNORE_DEFFACE_P (value
))
3908 return Qunspecified
;
3914 DEFUN ("internal-lisp-face-attribute-values",
3915 Finternal_lisp_face_attribute_values
,
3916 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3917 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3918 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3922 Lisp_Object result
= Qnil
;
3924 CHECK_SYMBOL (attr
);
3926 if (EQ (attr
, QCunderline
))
3927 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3928 else if (EQ (attr
, QCoverline
))
3929 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3930 else if (EQ (attr
, QCstrike_through
))
3931 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3932 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3933 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3939 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3940 Sinternal_merge_in_global_face
, 2, 2, 0,
3941 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3942 Default face attributes override any local face attributes. */)
3944 Lisp_Object face
, frame
;
3947 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3948 struct frame
*f
= XFRAME (frame
);
3950 CHECK_LIVE_FRAME (frame
);
3951 global_lface
= lface_from_face_name (NULL
, face
, 1);
3952 local_lface
= lface_from_face_name (f
, face
, 0);
3953 if (NILP (local_lface
))
3954 local_lface
= Finternal_make_lisp_face (face
, frame
);
3956 /* Make every specified global attribute override the local one.
3957 BEWARE!! This is only used from `face-set-after-frame-default' where
3958 the local frame is defined from default specs in `face-defface-spec'
3959 and those should be overridden by global settings. Hence the strange
3960 "global before local" priority. */
3961 lvec
= XVECTOR (local_lface
)->contents
;
3962 gvec
= XVECTOR (global_lface
)->contents
;
3963 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3964 if (IGNORE_DEFFACE_P (gvec
[i
]))
3965 lvec
[i
] = Qunspecified
;
3966 else if (! UNSPECIFIEDP (gvec
[i
]))
3969 /* If the default face was changed, realize it again, and update the
3970 `font' frame parameter. */
3971 if (EQ (face
, Qdefault
))
3973 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
3974 struct face
*newface
, *oldface
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3975 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3977 /* This can be NULL (e.g., in batch mode). */
3980 bcopy (oldface
->lface
, attrs
, sizeof attrs
);
3981 merge_face_vectors (f
, lvec
, attrs
, 0);
3982 newface
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
3984 if ((! UNSPECIFIEDP (gvec
[LFACE_FAMILY_INDEX
])
3985 || ! UNSPECIFIEDP (gvec
[LFACE_FOUNDRY_INDEX
])
3986 || ! UNSPECIFIEDP (gvec
[LFACE_HEIGHT_INDEX
])
3987 || ! UNSPECIFIEDP (gvec
[LFACE_WEIGHT_INDEX
])
3988 || ! UNSPECIFIEDP (gvec
[LFACE_SLANT_INDEX
])
3989 || ! UNSPECIFIEDP (gvec
[LFACE_SWIDTH_INDEX
])
3990 || ! UNSPECIFIEDP (gvec
[LFACE_FONT_INDEX
]))
3993 Lisp_Object name
= newface
->font
->props
[FONT_NAME_INDEX
];
3994 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, name
),
4004 /* The following function is implemented for compatibility with 20.2.
4005 The function is used in x-resolve-fonts when it is asked to
4006 return fonts with the same size as the font of a face. This is
4007 done in fontset.el. */
4009 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
4010 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4011 The font name is, by default, for ASCII characters.
4012 If the optional argument FRAME is given, report on face FACE in that frame.
4013 If FRAME is t, report on the defaults for face FACE (for new frames).
4014 The font default for a face is either nil, or a list
4015 of the form (bold), (italic) or (bold italic).
4016 If FRAME is omitted or nil, use the selected frame. And, in this case,
4017 if the optional third argument CHARACTER is given,
4018 return the font name used for CHARACTER. */)
4019 (face
, frame
, character
)
4020 Lisp_Object face
, frame
, character
;
4024 Lisp_Object result
= Qnil
;
4025 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4027 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4028 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4029 result
= Fcons (Qbold
, result
);
4031 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4032 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4033 result
= Fcons (Qitalic
, result
);
4039 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4040 int face_id
= lookup_named_face (f
, face
, 1);
4041 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4045 #ifdef HAVE_WINDOW_SYSTEM
4046 if (FRAME_WINDOW_P (f
) && !NILP (character
))
4048 CHECK_CHARACTER (character
);
4049 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
4050 face
= FACE_FROM_ID (f
, face_id
);
4053 ? face
->font
->props
[FONT_NAME_INDEX
]
4055 #else /* !HAVE_WINDOW_SYSTEM */
4056 return build_string (FRAME_MSDOS_P (f
)
4058 : FRAME_W32_P (f
) ? "w32term"
4065 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4066 all attributes are `equal'. Tries to be fast because this function
4067 is called quite often. */
4070 face_attr_equal_p (v1
, v2
)
4073 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4074 and the other is specified. */
4075 if (XTYPE (v1
) != XTYPE (v2
))
4084 if (SBYTES (v1
) != SBYTES (v2
))
4087 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4094 return !NILP (Fequal (v1
, v2
));
4099 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4100 all attributes are `equal'. Tries to be fast because this function
4101 is called quite often. */
4104 lface_equal_p (v1
, v2
)
4105 Lisp_Object
*v1
, *v2
;
4109 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4110 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4116 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4117 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4118 doc
: /* True if FACE1 and FACE2 are equal.
4119 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4120 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4121 If FRAME is omitted or nil, use the selected frame. */)
4122 (face1
, face2
, frame
)
4123 Lisp_Object face1
, face2
, frame
;
4127 Lisp_Object lface1
, lface2
;
4132 /* Don't use check_x_frame here because this function is called
4133 before X frames exist. At that time, if FRAME is nil,
4134 selected_frame will be used which is the frame dumped with
4135 Emacs. That frame is not an X frame. */
4136 f
= frame_or_selected_frame (frame
, 2);
4138 lface1
= lface_from_face_name (f
, face1
, 1);
4139 lface2
= lface_from_face_name (f
, face2
, 1);
4140 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4141 XVECTOR (lface2
)->contents
);
4142 return equal_p
? Qt
: Qnil
;
4146 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4147 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4148 doc
: /* True if FACE has no attribute specified.
4149 If the optional argument FRAME is given, report on face FACE in that frame.
4150 If FRAME is t, report on the defaults for face FACE (for new frames).
4151 If FRAME is omitted or nil, use the selected frame. */)
4153 Lisp_Object face
, frame
;
4160 frame
= selected_frame
;
4161 CHECK_LIVE_FRAME (frame
);
4165 lface
= lface_from_face_name (NULL
, face
, 1);
4167 lface
= lface_from_face_name (f
, face
, 1);
4169 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4170 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4173 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4177 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4179 doc
: /* Return an alist of frame-local faces defined on FRAME.
4180 For internal use only. */)
4184 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4185 return f
->face_alist
;
4189 /* Return a hash code for Lisp string STRING with case ignored. Used
4190 below in computing a hash value for a Lisp face. */
4192 static INLINE
unsigned
4193 hash_string_case_insensitive (string
)
4196 const unsigned char *s
;
4198 xassert (STRINGP (string
));
4199 for (s
= SDATA (string
); *s
; ++s
)
4200 hash
= (hash
<< 1) ^ tolower (*s
);
4205 /* Return a hash code for face attribute vector V. */
4207 static INLINE
unsigned
4211 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4212 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4213 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4214 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4215 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4216 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4217 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4218 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4222 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4223 considering charsets/registries). They do if they specify the same
4224 family, point size, weight, width, slant, and font. Both
4225 LFACE1 and LFACE2 must be fully-specified. */
4228 lface_same_font_attributes_p (lface1
, lface2
)
4229 Lisp_Object
*lface1
, *lface2
;
4231 xassert (lface_fully_specified_p (lface1
)
4232 && lface_fully_specified_p (lface2
));
4233 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4234 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4235 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4236 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4237 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4238 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4239 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4240 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4241 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4242 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4243 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4244 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4245 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4246 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4252 /***********************************************************************
4254 ***********************************************************************/
4256 /* Allocate and return a new realized face for Lisp face attribute
4259 static struct face
*
4260 make_realized_face (attr
)
4263 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4264 bzero (face
, sizeof *face
);
4265 face
->ascii_face
= face
;
4266 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4271 /* Free realized face FACE, including its X resources. FACE may
4275 free_realized_face (f
, face
)
4281 #ifdef HAVE_WINDOW_SYSTEM
4282 if (FRAME_WINDOW_P (f
))
4284 /* Free fontset of FACE if it is ASCII face. */
4285 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4286 free_face_fontset (f
, face
);
4291 font_done_for_face (f
, face
);
4292 x_free_gc (f
, face
->gc
);
4297 free_face_colors (f
, face
);
4298 x_destroy_bitmap (f
, face
->stipple
);
4300 #endif /* HAVE_WINDOW_SYSTEM */
4307 /* Prepare face FACE for subsequent display on frame F. This
4308 allocated GCs if they haven't been allocated yet or have been freed
4309 by clearing the face cache. */
4312 prepare_face_for_display (f
, face
)
4316 #ifdef HAVE_WINDOW_SYSTEM
4317 xassert (FRAME_WINDOW_P (f
));
4322 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4324 xgcv
.foreground
= face
->foreground
;
4325 xgcv
.background
= face
->background
;
4326 #ifdef HAVE_X_WINDOWS
4327 xgcv
.graphics_exposures
= False
;
4331 #ifdef HAVE_X_WINDOWS
4334 xgcv
.fill_style
= FillOpaqueStippled
;
4335 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4336 mask
|= GCFillStyle
| GCStipple
;
4339 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4341 font_prepare_for_face (f
, face
);
4344 #endif /* HAVE_WINDOW_SYSTEM */
4348 /* Returns the `distance' between the colors X and Y. */
4351 color_distance (x
, y
)
4354 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4355 Quoting from that paper:
4357 This formula has results that are very close to L*u*v* (with the
4358 modified lightness curve) and, more importantly, it is a more even
4359 algorithm: it does not have a range of colours where it suddenly
4360 gives far from optimal results.
4362 See <http://www.compuphase.com/cmetric.htm> for more info. */
4364 long r
= (x
->red
- y
->red
) >> 8;
4365 long g
= (x
->green
- y
->green
) >> 8;
4366 long b
= (x
->blue
- y
->blue
) >> 8;
4367 long r_mean
= (x
->red
+ y
->red
) >> 9;
4370 (((512 + r_mean
) * r
* r
) >> 8)
4372 + (((767 - r_mean
) * b
* b
) >> 8);
4376 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4377 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4378 COLOR1 and COLOR2 may be either strings containing the color name,
4379 or lists of the form (RED GREEN BLUE).
4380 If FRAME is unspecified or nil, the current frame is used. */)
4381 (color1
, color2
, frame
)
4382 Lisp_Object color1
, color2
, frame
;
4385 XColor cdef1
, cdef2
;
4388 frame
= selected_frame
;
4389 CHECK_LIVE_FRAME (frame
);
4392 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4393 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4394 signal_error ("Invalid color", color1
);
4395 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4396 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4397 signal_error ("Invalid color", color2
);
4399 return make_number (color_distance (&cdef1
, &cdef2
));
4403 /***********************************************************************
4405 ***********************************************************************/
4407 /* Return a new face cache for frame F. */
4409 static struct face_cache
*
4413 struct face_cache
*c
;
4416 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4417 bzero (c
, sizeof *c
);
4418 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4419 c
->buckets
= (struct face
**) xmalloc (size
);
4420 bzero (c
->buckets
, size
);
4422 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4424 c
->menu_face_changed_p
= menu_face_changed_default
;
4429 /* Clear out all graphics contexts for all realized faces, except for
4430 the basic faces. This should be done from time to time just to avoid
4431 keeping too many graphics contexts that are no longer needed. */
4435 struct face_cache
*c
;
4437 if (c
&& FRAME_WINDOW_P (c
->f
))
4439 #ifdef HAVE_WINDOW_SYSTEM
4441 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4443 struct face
*face
= c
->faces_by_id
[i
];
4444 if (face
&& face
->gc
)
4448 font_done_for_face (c
->f
, face
);
4449 x_free_gc (c
->f
, face
->gc
);
4454 #endif /* HAVE_WINDOW_SYSTEM */
4459 /* Free all realized faces in face cache C, including basic faces.
4460 C may be null. If faces are freed, make sure the frame's current
4461 matrix is marked invalid, so that a display caused by an expose
4462 event doesn't try to use faces we destroyed. */
4465 free_realized_faces (c
)
4466 struct face_cache
*c
;
4471 struct frame
*f
= c
->f
;
4473 /* We must block input here because we can't process X events
4474 safely while only some faces are freed, or when the frame's
4475 current matrix still references freed faces. */
4478 for (i
= 0; i
< c
->used
; ++i
)
4480 free_realized_face (f
, c
->faces_by_id
[i
]);
4481 c
->faces_by_id
[i
] = NULL
;
4485 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4486 bzero (c
->buckets
, size
);
4488 /* Must do a thorough redisplay the next time. Mark current
4489 matrices as invalid because they will reference faces freed
4490 above. This function is also called when a frame is
4491 destroyed. In this case, the root window of F is nil. */
4492 if (WINDOWP (f
->root_window
))
4494 clear_current_matrices (f
);
4495 ++windows_or_buffers_changed
;
4503 /* Free all realized faces that are using FONTSET on frame F. */
4506 free_realized_faces_for_fontset (f
, fontset
)
4510 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4514 /* We must block input here because we can't process X events safely
4515 while only some faces are freed, or when the frame's current
4516 matrix still references freed faces. */
4519 for (i
= 0; i
< cache
->used
; i
++)
4521 face
= cache
->faces_by_id
[i
];
4523 && face
->fontset
== fontset
)
4525 uncache_face (cache
, face
);
4526 free_realized_face (f
, face
);
4530 /* Must do a thorough redisplay the next time. Mark current
4531 matrices as invalid because they will reference faces freed
4532 above. This function is also called when a frame is destroyed.
4533 In this case, the root window of F is nil. */
4534 if (WINDOWP (f
->root_window
))
4536 clear_current_matrices (f
);
4537 ++windows_or_buffers_changed
;
4544 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4545 This is done after attributes of a named face have been changed,
4546 because we can't tell which realized faces depend on that face. */
4549 free_all_realized_faces (frame
)
4555 FOR_EACH_FRAME (rest
, frame
)
4556 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4559 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4563 /* Free face cache C and faces in it, including their X resources. */
4567 struct face_cache
*c
;
4571 free_realized_faces (c
);
4573 xfree (c
->faces_by_id
);
4579 /* Cache realized face FACE in face cache C. HASH is the hash value
4580 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4581 FACE), insert the new face to the beginning of the collision list
4582 of the face hash table of C. Otherwise, add the new face to the
4583 end of the collision list. This way, lookup_face can quickly find
4584 that a requested face is not cached. */
4587 cache_face (c
, face
, hash
)
4588 struct face_cache
*c
;
4592 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4596 if (face
->ascii_face
!= face
)
4598 struct face
*last
= c
->buckets
[i
];
4609 c
->buckets
[i
] = face
;
4610 face
->prev
= face
->next
= NULL
;
4616 face
->next
= c
->buckets
[i
];
4618 face
->next
->prev
= face
;
4619 c
->buckets
[i
] = face
;
4622 /* Find a free slot in C->faces_by_id and use the index of the free
4623 slot as FACE->id. */
4624 for (i
= 0; i
< c
->used
; ++i
)
4625 if (c
->faces_by_id
[i
] == NULL
)
4629 /* Maybe enlarge C->faces_by_id. */
4632 if (c
->used
== c
->size
)
4635 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4636 if (new_size
== c
->size
)
4637 abort (); /* Alternatives? ++kfs */
4638 sz
= new_size
* sizeof *c
->faces_by_id
;
4639 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4646 /* Check that FACE got a unique id. */
4651 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4652 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4658 #endif /* GLYPH_DEBUG */
4660 c
->faces_by_id
[i
] = face
;
4664 /* Remove face FACE from cache C. */
4667 uncache_face (c
, face
)
4668 struct face_cache
*c
;
4671 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4674 face
->prev
->next
= face
->next
;
4676 c
->buckets
[i
] = face
->next
;
4679 face
->next
->prev
= face
->prev
;
4681 c
->faces_by_id
[face
->id
] = NULL
;
4682 if (face
->id
== c
->used
)
4687 /* Look up a realized face with face attributes ATTR in the face cache
4688 of frame F. The face will be used to display ASCII characters.
4689 Value is the ID of the face found. If no suitable face is found,
4690 realize a new one. */
4693 lookup_face (f
, attr
)
4697 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4702 xassert (cache
!= NULL
);
4703 check_lface_attrs (attr
);
4705 /* Look up ATTR in the face cache. */
4706 hash
= lface_hash (attr
);
4707 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4709 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4711 if (face
->ascii_face
!= face
)
4713 /* There's no more ASCII face. */
4717 if (face
->hash
== hash
4718 && lface_equal_p (face
->lface
, attr
))
4722 /* If not found, realize a new face. */
4724 face
= realize_face (cache
, attr
, -1);
4727 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4728 #endif /* GLYPH_DEBUG */
4733 #ifdef HAVE_WINDOW_SYSTEM
4734 /* Look up a realized face that has the same attributes as BASE_FACE
4735 except for the font in the face cache of frame F. If FONT-OBJECT
4736 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4737 the face has no font. Value is the ID of the face found. If no
4738 suitable face is found, realize a new one. */
4741 face_for_font (f
, font_object
, base_face
)
4743 Lisp_Object font_object
;
4744 struct face
*base_face
;
4746 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4751 xassert (cache
!= NULL
);
4752 base_face
= base_face
->ascii_face
;
4753 hash
= lface_hash (base_face
->lface
);
4754 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4756 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4758 if (face
->ascii_face
== face
)
4760 if (face
->ascii_face
== base_face
4761 && face
->font
== (NILP (font_object
) ? NULL
4762 : XFONT_OBJECT (font_object
))
4763 && lface_equal_p (face
->lface
, base_face
->lface
))
4767 /* If not found, realize a new face. */
4768 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4771 #endif /* HAVE_WINDOW_SYSTEM */
4773 /* Return the face id of the realized face for named face SYMBOL on
4774 frame F suitable for displaying ASCII characters. Value is -1 if
4775 the face couldn't be determined, which might happen if the default
4776 face isn't realized and cannot be realized. */
4779 lookup_named_face (f
, symbol
, signal_p
)
4784 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4785 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4786 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4788 if (default_face
== NULL
)
4790 if (!realize_basic_faces (f
))
4792 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4793 if (default_face
== NULL
)
4794 abort (); /* realize_basic_faces must have set it up */
4797 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4800 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4801 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4803 return lookup_face (f
, attrs
);
4807 /* Return the display face-id of the basic face who's canonical face-id
4808 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4809 basic face has bee remapped via Vface_remapping_alist. This function is
4810 conservative: if something goes wrong, it will simply return FACE_ID
4811 rather than signal an error. */
4814 lookup_basic_face (f
, face_id
)
4818 Lisp_Object name
, mapping
;
4819 int remapped_face_id
;
4821 if (NILP (Vface_remapping_alist
))
4822 return face_id
; /* Nothing to do. */
4826 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4827 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4828 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4829 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4830 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4831 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4832 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4833 case BORDER_FACE_ID
: name
= Qborder
; break;
4834 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4835 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4836 case MENU_FACE_ID
: name
= Qmenu
; break;
4839 abort (); /* the caller is supposed to pass us a basic face id */
4842 /* Do a quick scan through Vface_remapping_alist, and return immediately
4843 if there is no remapping for face NAME. This is just an optimization
4844 for the very common no-remapping case. */
4845 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4847 return face_id
; /* Give up. */
4849 /* If there is a remapping entry, lookup the face using NAME, which will
4850 handle the remapping too. */
4851 remapped_face_id
= lookup_named_face (f
, name
, 0);
4852 if (remapped_face_id
< 0)
4853 return face_id
; /* Give up. */
4855 return remapped_face_id
;
4859 /* Return the ID of the realized ASCII face of Lisp face with ID
4860 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4863 ascii_face_of_lisp_face (f
, lface_id
)
4869 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4871 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4872 face_id
= lookup_named_face (f
, face_name
, 1);
4881 /* Return a face for charset ASCII that is like the face with id
4882 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4883 STEPS < 0 means larger. Value is the id of the face. */
4886 smaller_face (f
, face_id
, steps
)
4890 #ifdef HAVE_WINDOW_SYSTEM
4892 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4893 int pt
, last_pt
, last_height
;
4896 struct face
*new_face
;
4898 /* If not called for an X frame, just return the original face. */
4899 if (FRAME_TERMCAP_P (f
))
4902 /* Try in increments of 1/2 pt. */
4903 delta
= steps
< 0 ? 5 : -5;
4904 steps
= eabs (steps
);
4906 face
= FACE_FROM_ID (f
, face_id
);
4907 bcopy (face
->lface
, attrs
, sizeof attrs
);
4908 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4909 new_face_id
= face_id
;
4910 last_height
= FONT_HEIGHT (face
->font
);
4914 /* Give up if we cannot find a font within 10pt. */
4915 && eabs (last_pt
- pt
) < 100)
4917 /* Look up a face for a slightly smaller/larger font. */
4919 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4920 new_face_id
= lookup_face (f
, attrs
);
4921 new_face
= FACE_FROM_ID (f
, new_face_id
);
4923 /* If height changes, count that as one step. */
4924 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4925 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4928 last_height
= FONT_HEIGHT (new_face
->font
);
4935 #else /* not HAVE_WINDOW_SYSTEM */
4939 #endif /* not HAVE_WINDOW_SYSTEM */
4943 /* Return a face for charset ASCII that is like the face with id
4944 FACE_ID on frame F, but has height HEIGHT. */
4947 face_with_height (f
, face_id
, height
)
4952 #ifdef HAVE_WINDOW_SYSTEM
4954 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4956 if (FRAME_TERMCAP_P (f
)
4960 face
= FACE_FROM_ID (f
, face_id
);
4961 bcopy (face
->lface
, attrs
, sizeof attrs
);
4962 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4963 face_id
= lookup_face (f
, attrs
);
4964 #endif /* HAVE_WINDOW_SYSTEM */
4970 /* Return the face id of the realized face for named face SYMBOL on
4971 frame F suitable for displaying ASCII characters, and use
4972 attributes of the face FACE_ID for attributes that aren't
4973 completely specified by SYMBOL. This is like lookup_named_face,
4974 except that the default attributes come from FACE_ID, not from the
4975 default face. FACE_ID is assumed to be already realized. */
4978 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
4984 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4985 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4986 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4991 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0);
4992 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4993 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4994 return lookup_face (f
, attrs
);
4997 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4998 Sface_attributes_as_vector
, 1, 1, 0,
4999 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5004 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5006 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5013 /***********************************************************************
5014 Face capability testing
5015 ***********************************************************************/
5018 /* If the distance (as returned by color_distance) between two colors is
5019 less than this, then they are considered the same, for determining
5020 whether a color is supported or not. The range of values is 0-65535. */
5022 #define TTY_SAME_COLOR_THRESHOLD 10000
5024 #ifdef HAVE_WINDOW_SYSTEM
5026 /* Return non-zero if all the face attributes in ATTRS are supported
5027 on the window-system frame F.
5029 The definition of `supported' is somewhat heuristic, but basically means
5030 that a face containing all the attributes in ATTRS, when merged with the
5031 default face for display, can be represented in a way that's
5033 \(1) different in appearance than the default face, and
5034 \(2) `close in spirit' to what the attributes specify, if not exact. */
5037 x_supports_face_attributes_p (f
, attrs
, def_face
)
5040 struct face
*def_face
;
5042 Lisp_Object
*def_attrs
= def_face
->lface
;
5044 /* Check that other specified attributes are different that the default
5046 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5047 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5048 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5049 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5050 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5051 def_attrs
[LFACE_INVERSE_INDEX
]))
5052 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5053 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5054 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5055 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5056 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5057 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5058 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5059 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5060 def_attrs
[LFACE_STIPPLE_INDEX
]))
5061 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5062 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5063 def_attrs
[LFACE_OVERLINE_INDEX
]))
5064 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5065 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5066 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5067 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5068 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5069 def_attrs
[LFACE_BOX_INDEX
])))
5072 /* Check font-related attributes, as those are the most commonly
5073 "unsupported" on a window-system (because of missing fonts). */
5074 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5075 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5076 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5077 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5078 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5079 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
5083 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5086 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5088 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5090 face_id
= lookup_face (f
, merged_attrs
);
5091 face
= FACE_FROM_ID (f
, face_id
);
5094 error ("Cannot make face");
5096 /* If the font is the same, or no font is found, then not
5098 if (face
->font
== def_face
->font
5101 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
5102 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
5106 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
5107 || face
->font
->driver
->case_sensitive
)
5109 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
5110 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
5111 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
5112 s2
, make_number (0), Qnil
, Qt
), Qt
))
5118 /* Everything checks out, this face is supported. */
5122 #endif /* HAVE_WINDOW_SYSTEM */
5124 /* Return non-zero if all the face attributes in ATTRS are supported
5127 The definition of `supported' is somewhat heuristic, but basically means
5128 that a face containing all the attributes in ATTRS, when merged
5129 with the default face for display, can be represented in a way that's
5131 \(1) different in appearance than the default face, and
5132 \(2) `close in spirit' to what the attributes specify, if not exact.
5134 Point (2) implies that a `:weight black' attribute will be satisfied
5135 by any terminal that can display bold, and a `:foreground "yellow"' as
5136 long as the terminal can display a yellowish color, but `:slant italic'
5137 will _not_ be satisfied by the tty display code's automatic
5138 substitution of a `dim' face for italic. */
5141 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5144 struct face
*def_face
;
5147 Lisp_Object val
, fg
, bg
;
5148 XColor fg_tty_color
, fg_std_color
;
5149 XColor bg_tty_color
, bg_std_color
;
5150 unsigned test_caps
= 0;
5151 Lisp_Object
*def_attrs
= def_face
->lface
;
5154 /* First check some easy-to-check stuff; ttys support none of the
5155 following attributes, so we can just return false if any are requested
5156 (even if `nominal' values are specified, we should still return false,
5157 as that will be the same value that the default face uses). We
5158 consider :slant unsupportable on ttys, even though the face code
5159 actually `fakes' them using a dim attribute if possible. This is
5160 because the faked result is too different from what the face
5162 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5163 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5164 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5165 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5166 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5167 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5168 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5169 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5170 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5174 /* Test for terminal `capabilities' (non-color character attributes). */
5176 /* font weight (bold/dim) */
5177 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5180 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
5184 if (def_weight
> 100)
5185 return 0; /* same as default */
5186 test_caps
= TTY_CAP_BOLD
;
5188 else if (weight
< 100)
5190 if (def_weight
< 100)
5191 return 0; /* same as default */
5192 test_caps
= TTY_CAP_DIM
;
5194 else if (def_weight
== 100)
5195 return 0; /* same as default */
5199 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5200 if (!UNSPECIFIEDP (val
))
5203 return 0; /* ttys can't use colored underlines */
5204 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5205 return 0; /* same as default */
5207 test_caps
|= TTY_CAP_UNDERLINE
;
5211 val
= attrs
[LFACE_INVERSE_INDEX
];
5212 if (!UNSPECIFIEDP (val
))
5214 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
5215 return 0; /* same as default */
5217 test_caps
|= TTY_CAP_INVERSE
;
5221 /* Color testing. */
5223 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5224 we use them when calling `tty_capable_p' below, even if the face
5225 specifies no colors. */
5226 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5227 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5229 /* Check if foreground color is close enough. */
5230 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5233 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5235 if (face_attr_equal_p (fg
, def_fg
))
5236 return 0; /* same as default */
5237 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5238 return 0; /* not a valid color */
5239 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5240 > TTY_SAME_COLOR_THRESHOLD
)
5241 return 0; /* displayed color is too different */
5243 /* Make sure the color is really different than the default. */
5245 XColor def_fg_color
;
5246 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5247 && (color_distance (&fg_tty_color
, &def_fg_color
)
5248 <= TTY_SAME_COLOR_THRESHOLD
))
5253 /* Check if background color is close enough. */
5254 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5257 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5259 if (face_attr_equal_p (bg
, def_bg
))
5260 return 0; /* same as default */
5261 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5262 return 0; /* not a valid color */
5263 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5264 > TTY_SAME_COLOR_THRESHOLD
)
5265 return 0; /* displayed color is too different */
5267 /* Make sure the color is really different than the default. */
5269 XColor def_bg_color
;
5270 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5271 && (color_distance (&bg_tty_color
, &def_bg_color
)
5272 <= TTY_SAME_COLOR_THRESHOLD
))
5277 /* If both foreground and background are requested, see if the
5278 distance between them is OK. We just check to see if the distance
5279 between the tty's foreground and background is close enough to the
5280 distance between the standard foreground and background. */
5281 if (STRINGP (fg
) && STRINGP (bg
))
5284 = (color_distance (&fg_std_color
, &bg_std_color
)
5285 - color_distance (&fg_tty_color
, &bg_tty_color
));
5286 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5287 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5292 /* See if the capabilities we selected above are supported, with the
5294 if (test_caps
!= 0 &&
5295 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5299 /* Hmmm, everything checks out, this terminal must support this face. */
5304 DEFUN ("display-supports-face-attributes-p",
5305 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5307 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5308 The optional argument DISPLAY can be a display name, a frame, or
5309 nil (meaning the selected frame's display).
5311 The definition of `supported' is somewhat heuristic, but basically means
5312 that a face containing all the attributes in ATTRIBUTES, when merged
5313 with the default face for display, can be represented in a way that's
5315 \(1) different in appearance than the default face, and
5316 \(2) `close in spirit' to what the attributes specify, if not exact.
5318 Point (2) implies that a `:weight black' attribute will be satisfied by
5319 any display that can display bold, and a `:foreground \"yellow\"' as long
5320 as it can display a yellowish color, but `:slant italic' will _not_ be
5321 satisfied by the tty display code's automatic substitution of a `dim'
5322 face for italic. */)
5323 (attributes
, display
)
5324 Lisp_Object attributes
, display
;
5326 int supports
= 0, i
;
5329 struct face
*def_face
;
5330 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5332 if (noninteractive
|| !initialized
)
5333 /* We may not be able to access low-level face information in batch
5334 mode, or before being dumped, and this function is not going to
5335 be very useful in those cases anyway, so just give up. */
5339 frame
= selected_frame
;
5340 else if (FRAMEP (display
))
5344 /* Find any frame on DISPLAY. */
5345 Lisp_Object fl_tail
;
5348 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5350 frame
= XCAR (fl_tail
);
5351 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5352 XFRAME (frame
)->param_alist
)),
5358 CHECK_LIVE_FRAME (frame
);
5361 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5362 attrs
[i
] = Qunspecified
;
5363 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5365 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5366 if (def_face
== NULL
)
5368 if (! realize_basic_faces (f
))
5369 error ("Cannot realize default face");
5370 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5371 if (def_face
== NULL
)
5372 abort (); /* realize_basic_faces must have set it up */
5375 /* Dispatch to the appropriate handler. */
5376 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5377 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5378 #ifdef HAVE_WINDOW_SYSTEM
5380 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5383 return supports
? Qt
: Qnil
;
5387 /***********************************************************************
5389 ***********************************************************************/
5391 DEFUN ("internal-set-font-selection-order",
5392 Finternal_set_font_selection_order
,
5393 Sinternal_set_font_selection_order
, 1, 1, 0,
5394 doc
: /* Set font selection order for face font selection to ORDER.
5395 ORDER must be a list of length 4 containing the symbols `:width',
5396 `:height', `:weight', and `:slant'. Face attributes appearing
5397 first in ORDER are matched first, e.g. if `:height' appears before
5398 `:weight' in ORDER, font selection first tries to find a font with
5399 a suitable height, and then tries to match the font weight.
5406 int indices
[DIM (font_sort_order
)];
5409 bzero (indices
, sizeof indices
);
5413 CONSP (list
) && i
< DIM (indices
);
5414 list
= XCDR (list
), ++i
)
5416 Lisp_Object attr
= XCAR (list
);
5419 if (EQ (attr
, QCwidth
))
5421 else if (EQ (attr
, QCheight
))
5422 xlfd
= XLFD_POINT_SIZE
;
5423 else if (EQ (attr
, QCweight
))
5425 else if (EQ (attr
, QCslant
))
5430 if (indices
[i
] != 0)
5435 if (!NILP (list
) || i
!= DIM (indices
))
5436 signal_error ("Invalid font sort order", order
);
5437 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5438 if (indices
[i
] == 0)
5439 signal_error ("Invalid font sort order", order
);
5441 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5443 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5444 free_all_realized_faces (Qnil
);
5447 font_update_sort_order (font_sort_order
);
5453 DEFUN ("internal-set-alternative-font-family-alist",
5454 Finternal_set_alternative_font_family_alist
,
5455 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5456 doc
: /* Define alternative font families to try in face font selection.
5457 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5458 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5459 be found. Value is ALIST. */)
5463 Lisp_Object tail
, tail2
;
5466 alist
= Fcopy_sequence (alist
);
5467 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5468 for (tail2
= XCAR (tail
); CONSP (tail2
); tail2
= XCDR (tail2
))
5469 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5470 Vface_alternative_font_family_alist
= alist
;
5471 free_all_realized_faces (Qnil
);
5476 DEFUN ("internal-set-alternative-font-registry-alist",
5477 Finternal_set_alternative_font_registry_alist
,
5478 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5479 doc
: /* Define alternative font registries to try in face font selection.
5480 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5481 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5482 be found. Value is ALIST. */)
5486 Lisp_Object tail
, tail2
;
5489 alist
= Fcopy_sequence (alist
);
5490 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5491 for (tail2
= XCAR (tail
); CONSP (tail2
); tail2
= XCDR (tail2
))
5492 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5493 Vface_alternative_font_registry_alist
= alist
;
5494 free_all_realized_faces (Qnil
);
5499 #ifdef HAVE_WINDOW_SYSTEM
5501 /* Ignore the difference of font point size less than this value. */
5503 #define FONT_POINT_SIZE_QUANTUM 5
5505 /* Return the fontset id of the base fontset name or alias name given
5506 by the fontset attribute of ATTRS. Value is -1 if the fontset
5507 attribute of ATTRS doesn't name a fontset. */
5510 face_fontset (attrs
)
5515 name
= attrs
[LFACE_FONTSET_INDEX
];
5516 if (!STRINGP (name
))
5518 return fs_query_fontset (name
, 0);
5521 #endif /* HAVE_WINDOW_SYSTEM */
5525 /***********************************************************************
5527 ***********************************************************************/
5529 /* Realize basic faces on frame F. Value is zero if frame parameters
5530 of F don't contain enough information needed to realize the default
5534 realize_basic_faces (f
)
5538 int count
= SPECPDL_INDEX ();
5540 /* Block input here so that we won't be surprised by an X expose
5541 event, for instance, without having the faces set up. */
5543 specbind (Qscalable_fonts_allowed
, Qt
);
5545 if (realize_default_face (f
))
5547 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5548 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5549 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5550 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5551 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5552 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5553 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5554 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5555 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5556 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5557 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5559 /* Reflect changes in the `menu' face in menu bars. */
5560 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5562 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5563 #ifdef USE_X_TOOLKIT
5564 if (FRAME_WINDOW_P (f
))
5565 x_update_menu_appearance (f
);
5572 unbind_to (count
, Qnil
);
5578 /* Realize the default face on frame F. If the face is not fully
5579 specified, make it fully-specified. Attributes of the default face
5580 that are not explicitly specified are taken from frame parameters. */
5583 realize_default_face (f
)
5586 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5588 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5591 /* If the `default' face is not yet known, create it. */
5592 lface
= lface_from_face_name (f
, Qdefault
, 0);
5596 XSETFRAME (frame
, f
);
5597 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5600 #ifdef HAVE_WINDOW_SYSTEM
5601 if (FRAME_WINDOW_P (f
))
5603 Lisp_Object font_object
;
5605 XSETFONT (font_object
, FRAME_FONT (f
));
5606 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5607 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5608 f
->default_face_done_p
= 1;
5610 #endif /* HAVE_WINDOW_SYSTEM */
5612 if (!FRAME_WINDOW_P (f
))
5614 LFACE_FAMILY (lface
) = build_string ("default");
5615 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5616 LFACE_SWIDTH (lface
) = Qnormal
;
5617 LFACE_HEIGHT (lface
) = make_number (1);
5618 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5619 LFACE_WEIGHT (lface
) = Qnormal
;
5620 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5621 LFACE_SLANT (lface
) = Qnormal
;
5622 if (UNSPECIFIEDP (LFACE_FONTSET (lface
)))
5623 LFACE_FONTSET (lface
) = Qnil
;
5626 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5627 LFACE_UNDERLINE (lface
) = Qnil
;
5629 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5630 LFACE_OVERLINE (lface
) = Qnil
;
5632 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5633 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5635 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5636 LFACE_BOX (lface
) = Qnil
;
5638 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5639 LFACE_INVERSE (lface
) = Qnil
;
5641 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5643 /* This function is called so early that colors are not yet
5644 set in the frame parameter list. */
5645 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5647 if (CONSP (color
) && STRINGP (XCDR (color
)))
5648 LFACE_FOREGROUND (lface
) = XCDR (color
);
5649 else if (FRAME_WINDOW_P (f
))
5651 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5652 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5657 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5659 /* This function is called so early that colors are not yet
5660 set in the frame parameter list. */
5661 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5662 if (CONSP (color
) && STRINGP (XCDR (color
)))
5663 LFACE_BACKGROUND (lface
) = XCDR (color
);
5664 else if (FRAME_WINDOW_P (f
))
5666 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5667 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5672 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5673 LFACE_STIPPLE (lface
) = Qnil
;
5675 /* Realize the face; it must be fully-specified now. */
5676 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5677 check_lface (lface
);
5678 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5679 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5681 #ifdef HAVE_WINDOW_SYSTEM
5682 #ifdef HAVE_X_WINDOWS
5683 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5685 /* This can happen when making a frame on a display that does
5686 not support the default font. */
5690 /* Otherwise, the font specified for the frame was not
5691 acceptable as a font for the default face (perhaps because
5692 auto-scaled fonts are rejected), so we must adjust the frame
5694 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5696 #endif /* HAVE_X_WINDOWS */
5697 #endif /* HAVE_WINDOW_SYSTEM */
5702 /* Realize basic faces other than the default face in face cache C.
5703 SYMBOL is the face name, ID is the face id the realized face must
5704 have. The default face must have been realized already. */
5707 realize_named_face (f
, symbol
, id
)
5712 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5713 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5714 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5715 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5716 struct face
*new_face
;
5718 /* The default face must exist and be fully specified. */
5719 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5720 check_lface_attrs (attrs
);
5721 xassert (lface_fully_specified_p (attrs
));
5723 /* If SYMBOL isn't know as a face, create it. */
5727 XSETFRAME (frame
, f
);
5728 lface
= Finternal_make_lisp_face (symbol
, frame
);
5731 /* Merge SYMBOL's face with the default face. */
5732 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5733 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5735 /* Realize the face. */
5736 new_face
= realize_face (c
, attrs
, id
);
5740 /* Realize the fully-specified face with attributes ATTRS in face
5741 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5742 non-negative, it is an ID of face to remove before caching the new
5743 face. Value is a pointer to the newly created realized face. */
5745 static struct face
*
5746 realize_face (cache
, attrs
, former_face_id
)
5747 struct face_cache
*cache
;
5753 /* LFACE must be fully specified. */
5754 xassert (cache
!= NULL
);
5755 check_lface_attrs (attrs
);
5757 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5759 /* Remove the former face. */
5760 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5761 uncache_face (cache
, former_face
);
5762 free_realized_face (cache
->f
, former_face
);
5765 if (FRAME_WINDOW_P (cache
->f
))
5766 face
= realize_x_face (cache
, attrs
);
5767 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5768 face
= realize_tty_face (cache
, attrs
);
5769 else if (FRAME_INITIAL_P (cache
->f
))
5771 /* Create a dummy face. */
5772 face
= make_realized_face (attrs
);
5777 /* Insert the new face. */
5778 cache_face (cache
, face
, lface_hash (attrs
));
5783 #ifdef HAVE_WINDOW_SYSTEM
5784 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5785 same attributes as BASE_FACE except for the font on frame F.
5786 FONT-OBJECT may be nil, in which case, realized a face of
5789 static struct face
*
5790 realize_non_ascii_face (f
, font_object
, base_face
)
5792 Lisp_Object font_object
;
5793 struct face
*base_face
;
5795 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5798 face
= (struct face
*) xmalloc (sizeof *face
);
5803 = (! NILP (font_object
)
5804 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5805 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5807 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5808 face
->colors_copied_bitwise_p
= 1;
5809 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5812 cache_face (cache
, face
, face
->hash
);
5816 #endif /* HAVE_WINDOW_SYSTEM */
5819 /* Realize the fully-specified face with attributes ATTRS in face
5820 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5821 the new face doesn't share font with the default face, a fontname
5822 is allocated from the heap and set in `font_name' of the new face,
5823 but it is not yet loaded here. Value is a pointer to the newly
5824 created realized face. */
5826 static struct face
*
5827 realize_x_face (cache
, attrs
)
5828 struct face_cache
*cache
;
5831 struct face
*face
= NULL
;
5832 #ifdef HAVE_WINDOW_SYSTEM
5833 struct face
*default_face
;
5835 Lisp_Object stipple
, overline
, strike_through
, box
;
5837 xassert (FRAME_WINDOW_P (cache
->f
));
5839 /* Allocate a new realized face. */
5840 face
= make_realized_face (attrs
);
5841 face
->ascii_face
= face
;
5845 /* Determine the font to use. Most of the time, the font will be
5846 the same as the font of the default face, so try that first. */
5847 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5849 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5851 face
->font
= default_face
->font
;
5853 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5857 /* If the face attribute ATTRS specifies a fontset, use it as
5858 the base of a new realized fontset. Otherwise, use the same
5859 base fontset as of the default face. The base determines
5860 registry and encoding of a font. It may also determine
5861 foundry and family. The other fields of font name pattern
5862 are constructed from ATTRS. */
5863 int fontset
= face_fontset (attrs
);
5865 /* If we are realizing the default face, ATTRS should specify a
5866 fontset. In other words, if FONTSET is -1, we are not
5867 realizing the default face, thus the default face should have
5868 already been realized. */
5870 fontset
= default_face
->fontset
;
5873 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5874 attrs
[LFACE_FONT_INDEX
]
5875 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5876 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5878 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5879 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5889 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5890 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5891 face
->overstrike
= 1;
5893 /* Load colors, and set remaining attributes. */
5895 load_face_colors (f
, face
, attrs
);
5898 box
= attrs
[LFACE_BOX_INDEX
];
5901 /* A simple box of line width 1 drawn in color given by
5903 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5905 face
->box
= FACE_SIMPLE_BOX
;
5906 face
->box_line_width
= 1;
5908 else if (INTEGERP (box
))
5910 /* Simple box of specified line width in foreground color of the
5912 xassert (XINT (box
) != 0);
5913 face
->box
= FACE_SIMPLE_BOX
;
5914 face
->box_line_width
= XINT (box
);
5915 face
->box_color
= face
->foreground
;
5916 face
->box_color_defaulted_p
= 1;
5918 else if (CONSP (box
))
5920 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5921 being one of `raised' or `sunken'. */
5922 face
->box
= FACE_SIMPLE_BOX
;
5923 face
->box_color
= face
->foreground
;
5924 face
->box_color_defaulted_p
= 1;
5925 face
->box_line_width
= 1;
5929 Lisp_Object keyword
, value
;
5931 keyword
= XCAR (box
);
5939 if (EQ (keyword
, QCline_width
))
5941 if (INTEGERP (value
) && XINT (value
) != 0)
5942 face
->box_line_width
= XINT (value
);
5944 else if (EQ (keyword
, QCcolor
))
5946 if (STRINGP (value
))
5948 face
->box_color
= load_color (f
, face
, value
,
5950 face
->use_box_color_for_shadows_p
= 1;
5953 else if (EQ (keyword
, QCstyle
))
5955 if (EQ (value
, Qreleased_button
))
5956 face
->box
= FACE_RAISED_BOX
;
5957 else if (EQ (value
, Qpressed_button
))
5958 face
->box
= FACE_SUNKEN_BOX
;
5963 /* Text underline, overline, strike-through. */
5965 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5967 /* Use default color (same as foreground color). */
5968 face
->underline_p
= 1;
5969 face
->underline_defaulted_p
= 1;
5970 face
->underline_color
= 0;
5972 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5974 /* Use specified color. */
5975 face
->underline_p
= 1;
5976 face
->underline_defaulted_p
= 0;
5977 face
->underline_color
5978 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5979 LFACE_UNDERLINE_INDEX
);
5981 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5983 face
->underline_p
= 0;
5984 face
->underline_defaulted_p
= 0;
5985 face
->underline_color
= 0;
5988 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5989 if (STRINGP (overline
))
5991 face
->overline_color
5992 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5993 LFACE_OVERLINE_INDEX
);
5994 face
->overline_p
= 1;
5996 else if (EQ (overline
, Qt
))
5998 face
->overline_color
= face
->foreground
;
5999 face
->overline_color_defaulted_p
= 1;
6000 face
->overline_p
= 1;
6003 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6004 if (STRINGP (strike_through
))
6006 face
->strike_through_color
6007 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6008 LFACE_STRIKE_THROUGH_INDEX
);
6009 face
->strike_through_p
= 1;
6011 else if (EQ (strike_through
, Qt
))
6013 face
->strike_through_color
= face
->foreground
;
6014 face
->strike_through_color_defaulted_p
= 1;
6015 face
->strike_through_p
= 1;
6018 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6019 if (!NILP (stipple
))
6020 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6021 #endif /* HAVE_WINDOW_SYSTEM */
6027 /* Map a specified color of face FACE on frame F to a tty color index.
6028 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6029 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6030 default foreground/background colors. */
6033 map_tty_color (f
, face
, idx
, defaulted
)
6036 enum lface_attribute_index idx
;
6039 Lisp_Object frame
, color
, def
;
6040 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6041 unsigned long default_pixel
, default_other_pixel
, pixel
;
6043 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6047 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6048 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6052 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6053 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6056 XSETFRAME (frame
, f
);
6057 color
= face
->lface
[idx
];
6061 && CONSP (Vtty_defined_color_alist
)
6062 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6065 /* Associations in tty-defined-color-alist are of the form
6066 (NAME INDEX R G B). We need the INDEX part. */
6067 pixel
= XINT (XCAR (XCDR (def
)));
6070 if (pixel
== default_pixel
&& STRINGP (color
))
6072 pixel
= load_color (f
, face
, color
, idx
);
6075 /* If the foreground of the default face is the default color,
6076 use the foreground color defined by the frame. */
6077 if (FRAME_MSDOS_P (f
))
6079 if (pixel
== default_pixel
6080 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6083 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6085 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6086 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6089 else if (pixel
== default_other_pixel
)
6092 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6094 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6095 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6103 face
->foreground
= pixel
;
6105 face
->background
= pixel
;
6109 /* Realize the fully-specified face with attributes ATTRS in face
6110 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
6111 Value is a pointer to the newly created realized face. */
6113 static struct face
*
6114 realize_tty_face (cache
, attrs
)
6115 struct face_cache
*cache
;
6120 int face_colors_defaulted
= 0;
6121 struct frame
*f
= cache
->f
;
6123 /* Frame must be a termcap frame. */
6124 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6126 /* Allocate a new realized face. */
6127 face
= make_realized_face (attrs
);
6129 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6132 /* Map face attributes to TTY appearances. We map slant to
6133 dimmed text because we want italic text to appear differently
6134 and because dimmed text is probably used infrequently. */
6135 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
6136 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
6138 face
->tty_bold_p
= 1;
6139 if (weight
< 100 || slant
!= 100)
6140 face
->tty_dim_p
= 1;
6141 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6142 face
->tty_underline_p
= 1;
6143 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6144 face
->tty_reverse_p
= 1;
6146 /* Map color names to color indices. */
6147 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6148 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6150 /* Swap colors if face is inverse-video. If the colors are taken
6151 from the frame colors, they are already inverted, since the
6152 frame-creation function calls x-handle-reverse-video. */
6153 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6155 unsigned long tem
= face
->foreground
;
6156 face
->foreground
= face
->background
;
6157 face
->background
= tem
;
6160 if (tty_suppress_bold_inverse_default_colors_p
6162 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6163 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6164 face
->tty_bold_p
= 0;
6170 DEFUN ("tty-suppress-bold-inverse-default-colors",
6171 Ftty_suppress_bold_inverse_default_colors
,
6172 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6173 doc
: /* Suppress/allow boldness of faces with inverse default colors.
6174 SUPPRESS non-nil means suppress it.
6175 This affects bold faces on TTYs whose foreground is the default background
6176 color of the display and whose background is the default foreground color.
6177 For such faces, the bold face attribute is ignored if this variable
6180 Lisp_Object suppress
;
6182 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6183 ++face_change_count
;
6189 /***********************************************************************
6191 ***********************************************************************/
6193 /* Return the ID of the face to use to display character CH with face
6194 property PROP on frame F in current_buffer. */
6197 compute_char_face (f
, ch
, prop
)
6204 if (NILP (current_buffer
->enable_multibyte_characters
))
6209 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6210 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6214 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6215 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6216 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6217 merge_face_ref (f
, prop
, attrs
, 1, 0);
6218 face_id
= lookup_face (f
, attrs
);
6224 /* Return the face ID associated with buffer position POS for
6225 displaying ASCII characters. Return in *ENDPTR the position at
6226 which a different face is needed, as far as text properties and
6227 overlays are concerned. W is a window displaying current_buffer.
6229 REGION_BEG, REGION_END delimit the region, so it can be
6232 LIMIT is a position not to scan beyond. That is to limit the time
6233 this function can take.
6235 If MOUSE is non-zero, use the character's mouse-face, not its face.
6237 The face returned is suitable for displaying ASCII characters. */
6240 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6241 endptr
, limit
, mouse
)
6244 EMACS_INT region_beg
, region_end
;
6249 struct frame
*f
= XFRAME (w
->frame
);
6250 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6251 Lisp_Object prop
, position
;
6253 Lisp_Object
*overlay_vec
;
6256 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6257 Lisp_Object limit1
, end
;
6258 struct face
*default_face
;
6260 /* W must display the current buffer. We could write this function
6261 to use the frame and buffer of W, but right now it doesn't. */
6262 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6264 XSETFRAME (frame
, f
);
6265 XSETFASTINT (position
, pos
);
6268 if (pos
< region_beg
&& region_beg
< endpos
)
6269 endpos
= region_beg
;
6271 /* Get the `face' or `mouse_face' text property at POS, and
6272 determine the next position at which the property changes. */
6273 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6274 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6275 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6277 endpos
= XINT (end
);
6279 /* Look at properties from overlays. */
6281 EMACS_INT next_overlay
;
6283 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6284 if (next_overlay
< endpos
)
6285 endpos
= next_overlay
;
6291 /* Perhaps remap BASE_FACE_ID to a user-specified alternative. */
6292 if (NILP (Vface_remapping_alist
))
6293 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6295 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6297 /* Optimize common cases where we can use the default face. */
6300 && !(pos
>= region_beg
&& pos
< region_end
))
6301 return default_face
->id
;
6303 /* Begin with attributes from the default face. */
6304 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6306 /* Merge in attributes specified via text properties. */
6308 merge_face_ref (f
, prop
, attrs
, 1, 0);
6310 /* Now merge the overlay data. */
6311 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6312 for (i
= 0; i
< noverlays
; i
++)
6317 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6319 merge_face_ref (f
, prop
, attrs
, 1, 0);
6321 oend
= OVERLAY_END (overlay_vec
[i
]);
6322 oendpos
= OVERLAY_POSITION (oend
);
6323 if (oendpos
< endpos
)
6327 /* If in the region, merge in the region face. */
6328 if (pos
>= region_beg
&& pos
< region_end
)
6330 merge_named_face (f
, Qregion
, attrs
, 0);
6332 if (region_end
< endpos
)
6333 endpos
= region_end
;
6338 /* Look up a realized face with the given face attributes,
6339 or realize a new one for ASCII characters. */
6340 return lookup_face (f
, attrs
);
6343 /* Return the face ID at buffer position POS for displaying ASCII
6344 characters associated with overlay strings for overlay OVERLAY.
6346 Like face_at_buffer_position except for OVERLAY. Currently it
6347 simply disregards the `face' properties of all overlays. */
6350 face_for_overlay_string (w
, pos
, region_beg
, region_end
,
6351 endptr
, limit
, mouse
, overlay
)
6354 EMACS_INT region_beg
, region_end
;
6358 Lisp_Object overlay
;
6360 struct frame
*f
= XFRAME (w
->frame
);
6361 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6362 Lisp_Object prop
, position
;
6365 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6366 Lisp_Object limit1
, end
;
6367 struct face
*default_face
;
6369 /* W must display the current buffer. We could write this function
6370 to use the frame and buffer of W, but right now it doesn't. */
6371 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6373 XSETFRAME (frame
, f
);
6374 XSETFASTINT (position
, pos
);
6377 if (pos
< region_beg
&& region_beg
< endpos
)
6378 endpos
= region_beg
;
6380 /* Get the `face' or `mouse_face' text property at POS, and
6381 determine the next position at which the property changes. */
6382 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6383 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6384 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6386 endpos
= XINT (end
);
6390 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6392 /* Optimize common cases where we can use the default face. */
6394 && !(pos
>= region_beg
&& pos
< region_end
))
6395 return DEFAULT_FACE_ID
;
6397 /* Begin with attributes from the default face. */
6398 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6400 /* Merge in attributes specified via text properties. */
6402 merge_face_ref (f
, prop
, attrs
, 1, 0);
6404 /* If in the region, merge in the region face. */
6405 if (pos
>= region_beg
&& pos
< region_end
)
6407 merge_named_face (f
, Qregion
, attrs
, 0);
6409 if (region_end
< endpos
)
6410 endpos
= region_end
;
6415 /* Look up a realized face with the given face attributes,
6416 or realize a new one for ASCII characters. */
6417 return lookup_face (f
, attrs
);
6421 /* Compute the face at character position POS in Lisp string STRING on
6422 window W, for ASCII characters.
6424 If STRING is an overlay string, it comes from position BUFPOS in
6425 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6426 not an overlay string. W must display the current buffer.
6427 REGION_BEG and REGION_END give the start and end positions of the
6428 region; both are -1 if no region is visible.
6430 BASE_FACE_ID is the id of a face to merge with. For strings coming
6431 from overlays or the `display' property it is the face at BUFPOS.
6433 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6435 Set *ENDPTR to the next position where to check for faces in
6436 STRING; -1 if the face is constant from POS to the end of the
6439 Value is the id of the face to use. The face returned is suitable
6440 for displaying ASCII characters. */
6443 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6444 region_end
, endptr
, base_face_id
, mouse_p
)
6447 EMACS_INT pos
, bufpos
;
6448 EMACS_INT region_beg
, region_end
;
6450 enum face_id base_face_id
;
6453 Lisp_Object prop
, position
, end
, limit
;
6454 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6455 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6456 struct face
*base_face
;
6457 int multibyte_p
= STRING_MULTIBYTE (string
);
6458 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6460 /* Get the value of the face property at the current position within
6461 STRING. Value is nil if there is no face property. */
6462 XSETFASTINT (position
, pos
);
6463 prop
= Fget_text_property (position
, prop_name
, string
);
6465 /* Get the next position at which to check for faces. Value of end
6466 is nil if face is constant all the way to the end of the string.
6467 Otherwise it is a string position where to check faces next.
6468 Limit is the maximum position up to which to check for property
6469 changes in Fnext_single_property_change. Strings are usually
6470 short, so set the limit to the end of the string. */
6471 XSETFASTINT (limit
, SCHARS (string
));
6472 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6474 *endptr
= XFASTINT (end
);
6478 base_face
= FACE_FROM_ID (f
, base_face_id
);
6479 xassert (base_face
);
6481 /* Optimize the default case that there is no face property and we
6482 are not in the region. */
6484 && (base_face_id
!= DEFAULT_FACE_ID
6485 /* BUFPOS <= 0 means STRING is not an overlay string, so
6486 that the region doesn't have to be taken into account. */
6488 || bufpos
< region_beg
6489 || bufpos
>= region_end
)
6491 /* We can't realize faces for different charsets differently
6492 if we don't have fonts, so we can stop here if not working
6493 on a window-system frame. */
6494 || !FRAME_WINDOW_P (f
)
6495 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6496 return base_face
->id
;
6498 /* Begin with attributes from the base face. */
6499 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6501 /* Merge in attributes specified via text properties. */
6503 merge_face_ref (f
, prop
, attrs
, 1, 0);
6505 /* If in the region, merge in the region face. */
6507 && bufpos
>= region_beg
6508 && bufpos
< region_end
)
6509 merge_named_face (f
, Qregion
, attrs
, 0);
6511 /* Look up a realized face with the given face attributes,
6512 or realize a new one for ASCII characters. */
6513 return lookup_face (f
, attrs
);
6517 /* Merge a face into a realized face.
6519 F is frame where faces are (to be) realized.
6521 FACE_NAME is named face to merge.
6523 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6525 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6527 BASE_FACE_ID is realized face to merge into.
6533 merge_faces (f
, face_name
, face_id
, base_face_id
)
6535 Lisp_Object face_name
;
6536 int face_id
, base_face_id
;
6538 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6539 struct face
*base_face
;
6541 base_face
= FACE_FROM_ID (f
, base_face_id
);
6543 return base_face_id
;
6545 if (EQ (face_name
, Qt
))
6547 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6548 return base_face_id
;
6549 face_name
= lface_id_to_name
[face_id
];
6550 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 1);
6553 return base_face_id
;
6556 /* Begin with attributes from the base face. */
6557 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6559 if (!NILP (face_name
))
6561 if (!merge_named_face (f
, face_name
, attrs
, 0))
6562 return base_face_id
;
6568 return base_face_id
;
6569 face
= FACE_FROM_ID (f
, face_id
);
6571 return base_face_id
;
6572 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6575 /* Look up a realized face with the given face attributes,
6576 or realize a new one for ASCII characters. */
6577 return lookup_face (f
, attrs
);
6581 /***********************************************************************
6583 ***********************************************************************/
6587 /* Print the contents of the realized face FACE to stderr. */
6590 dump_realized_face (face
)
6593 fprintf (stderr
, "ID: %d\n", face
->id
);
6594 #ifdef HAVE_X_WINDOWS
6595 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6597 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6599 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6600 fprintf (stderr
, "background: 0x%lx (%s)\n",
6602 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6604 fprintf (stderr
, "font_name: %s (%s)\n",
6605 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6606 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6607 #ifdef HAVE_X_WINDOWS
6608 fprintf (stderr
, "font = %p\n", face
->font
);
6610 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6611 fprintf (stderr
, "underline: %d (%s)\n",
6613 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6614 fprintf (stderr
, "hash: %d\n", face
->hash
);
6618 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6626 fprintf (stderr
, "font selection order: ");
6627 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6628 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6629 fprintf (stderr
, "\n");
6631 fprintf (stderr
, "alternative fonts: ");
6632 debug_print (Vface_alternative_font_family_alist
);
6633 fprintf (stderr
, "\n");
6635 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6636 Fdump_face (make_number (i
));
6642 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6644 error ("Not a valid face");
6645 dump_realized_face (face
);
6652 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6653 0, 0, 0, doc
: /* */)
6656 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6657 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6658 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6662 #endif /* GLYPH_DEBUG != 0 */
6666 /***********************************************************************
6668 ***********************************************************************/
6673 Qface
= intern ("face");
6675 Qface_no_inherit
= intern ("face-no-inherit");
6676 staticpro (&Qface_no_inherit
);
6677 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6678 staticpro (&Qbitmap_spec_p
);
6679 Qframe_set_background_mode
= intern ("frame-set-background-mode");
6680 staticpro (&Qframe_set_background_mode
);
6682 /* Lisp face attribute keywords. */
6683 QCfamily
= intern (":family");
6684 staticpro (&QCfamily
);
6685 QCheight
= intern (":height");
6686 staticpro (&QCheight
);
6687 QCweight
= intern (":weight");
6688 staticpro (&QCweight
);
6689 QCslant
= intern (":slant");
6690 staticpro (&QCslant
);
6691 QCunderline
= intern (":underline");
6692 staticpro (&QCunderline
);
6693 QCinverse_video
= intern (":inverse-video");
6694 staticpro (&QCinverse_video
);
6695 QCreverse_video
= intern (":reverse-video");
6696 staticpro (&QCreverse_video
);
6697 QCforeground
= intern (":foreground");
6698 staticpro (&QCforeground
);
6699 QCbackground
= intern (":background");
6700 staticpro (&QCbackground
);
6701 QCstipple
= intern (":stipple");
6702 staticpro (&QCstipple
);
6703 QCwidth
= intern (":width");
6704 staticpro (&QCwidth
);
6705 QCfont
= intern (":font");
6706 staticpro (&QCfont
);
6707 QCfontset
= intern (":fontset");
6708 staticpro (&QCfontset
);
6709 QCbold
= intern (":bold");
6710 staticpro (&QCbold
);
6711 QCitalic
= intern (":italic");
6712 staticpro (&QCitalic
);
6713 QCoverline
= intern (":overline");
6714 staticpro (&QCoverline
);
6715 QCstrike_through
= intern (":strike-through");
6716 staticpro (&QCstrike_through
);
6717 QCbox
= intern (":box");
6719 QCinherit
= intern (":inherit");
6720 staticpro (&QCinherit
);
6722 /* Symbols used for Lisp face attribute values. */
6723 QCcolor
= intern (":color");
6724 staticpro (&QCcolor
);
6725 QCline_width
= intern (":line-width");
6726 staticpro (&QCline_width
);
6727 QCstyle
= intern (":style");
6728 staticpro (&QCstyle
);
6729 Qreleased_button
= intern ("released-button");
6730 staticpro (&Qreleased_button
);
6731 Qpressed_button
= intern ("pressed-button");
6732 staticpro (&Qpressed_button
);
6733 Qnormal
= intern ("normal");
6734 staticpro (&Qnormal
);
6735 Qultra_light
= intern ("ultra-light");
6736 staticpro (&Qultra_light
);
6737 Qextra_light
= intern ("extra-light");
6738 staticpro (&Qextra_light
);
6739 Qlight
= intern ("light");
6740 staticpro (&Qlight
);
6741 Qsemi_light
= intern ("semi-light");
6742 staticpro (&Qsemi_light
);
6743 Qsemi_bold
= intern ("semi-bold");
6744 staticpro (&Qsemi_bold
);
6745 Qbold
= intern ("bold");
6747 Qextra_bold
= intern ("extra-bold");
6748 staticpro (&Qextra_bold
);
6749 Qultra_bold
= intern ("ultra-bold");
6750 staticpro (&Qultra_bold
);
6751 Qoblique
= intern ("oblique");
6752 staticpro (&Qoblique
);
6753 Qitalic
= intern ("italic");
6754 staticpro (&Qitalic
);
6755 Qreverse_oblique
= intern ("reverse-oblique");
6756 staticpro (&Qreverse_oblique
);
6757 Qreverse_italic
= intern ("reverse-italic");
6758 staticpro (&Qreverse_italic
);
6759 Qultra_condensed
= intern ("ultra-condensed");
6760 staticpro (&Qultra_condensed
);
6761 Qextra_condensed
= intern ("extra-condensed");
6762 staticpro (&Qextra_condensed
);
6763 Qcondensed
= intern ("condensed");
6764 staticpro (&Qcondensed
);
6765 Qsemi_condensed
= intern ("semi-condensed");
6766 staticpro (&Qsemi_condensed
);
6767 Qsemi_expanded
= intern ("semi-expanded");
6768 staticpro (&Qsemi_expanded
);
6769 Qexpanded
= intern ("expanded");
6770 staticpro (&Qexpanded
);
6771 Qextra_expanded
= intern ("extra-expanded");
6772 staticpro (&Qextra_expanded
);
6773 Qultra_expanded
= intern ("ultra-expanded");
6774 staticpro (&Qultra_expanded
);
6775 Qbackground_color
= intern ("background-color");
6776 staticpro (&Qbackground_color
);
6777 Qforeground_color
= intern ("foreground-color");
6778 staticpro (&Qforeground_color
);
6779 Qunspecified
= intern ("unspecified");
6780 staticpro (&Qunspecified
);
6781 Qignore_defface
= intern (":ignore-defface");
6782 staticpro (&Qignore_defface
);
6784 Qface_alias
= intern ("face-alias");
6785 staticpro (&Qface_alias
);
6786 Qdefault
= intern ("default");
6787 staticpro (&Qdefault
);
6788 Qtool_bar
= intern ("tool-bar");
6789 staticpro (&Qtool_bar
);
6790 Qregion
= intern ("region");
6791 staticpro (&Qregion
);
6792 Qfringe
= intern ("fringe");
6793 staticpro (&Qfringe
);
6794 Qheader_line
= intern ("header-line");
6795 staticpro (&Qheader_line
);
6796 Qscroll_bar
= intern ("scroll-bar");
6797 staticpro (&Qscroll_bar
);
6798 Qmenu
= intern ("menu");
6800 Qcursor
= intern ("cursor");
6801 staticpro (&Qcursor
);
6802 Qborder
= intern ("border");
6803 staticpro (&Qborder
);
6804 Qmouse
= intern ("mouse");
6805 staticpro (&Qmouse
);
6806 Qmode_line_inactive
= intern ("mode-line-inactive");
6807 staticpro (&Qmode_line_inactive
);
6808 Qvertical_border
= intern ("vertical-border");
6809 staticpro (&Qvertical_border
);
6810 Qtty_color_desc
= intern ("tty-color-desc");
6811 staticpro (&Qtty_color_desc
);
6812 Qtty_color_standard_values
= intern ("tty-color-standard-values");
6813 staticpro (&Qtty_color_standard_values
);
6814 Qtty_color_by_index
= intern ("tty-color-by-index");
6815 staticpro (&Qtty_color_by_index
);
6816 Qtty_color_alist
= intern ("tty-color-alist");
6817 staticpro (&Qtty_color_alist
);
6818 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
6819 staticpro (&Qscalable_fonts_allowed
);
6821 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6822 staticpro (&Vparam_value_alist
);
6823 Vface_alternative_font_family_alist
= Qnil
;
6824 staticpro (&Vface_alternative_font_family_alist
);
6825 Vface_alternative_font_registry_alist
= Qnil
;
6826 staticpro (&Vface_alternative_font_registry_alist
);
6828 defsubr (&Sinternal_make_lisp_face
);
6829 defsubr (&Sinternal_lisp_face_p
);
6830 defsubr (&Sinternal_set_lisp_face_attribute
);
6831 #ifdef HAVE_WINDOW_SYSTEM
6832 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6834 defsubr (&Scolor_gray_p
);
6835 defsubr (&Scolor_supported_p
);
6836 defsubr (&Sface_attribute_relative_p
);
6837 defsubr (&Smerge_face_attribute
);
6838 defsubr (&Sinternal_get_lisp_face_attribute
);
6839 defsubr (&Sinternal_lisp_face_attribute_values
);
6840 defsubr (&Sinternal_lisp_face_equal_p
);
6841 defsubr (&Sinternal_lisp_face_empty_p
);
6842 defsubr (&Sinternal_copy_lisp_face
);
6843 defsubr (&Sinternal_merge_in_global_face
);
6844 defsubr (&Sface_font
);
6845 defsubr (&Sframe_face_alist
);
6846 defsubr (&Sdisplay_supports_face_attributes_p
);
6847 defsubr (&Scolor_distance
);
6848 defsubr (&Sinternal_set_font_selection_order
);
6849 defsubr (&Sinternal_set_alternative_font_family_alist
);
6850 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6851 defsubr (&Sface_attributes_as_vector
);
6853 defsubr (&Sdump_face
);
6854 defsubr (&Sshow_face_resources
);
6855 #endif /* GLYPH_DEBUG */
6856 defsubr (&Sclear_face_cache
);
6857 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6859 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6860 defsubr (&Sdump_colors
);
6863 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6864 doc
: /* *Limit for font matching.
6865 If an integer > 0, font matching functions won't load more than
6866 that number of fonts when searching for a matching font. */);
6867 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6869 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6870 doc
: /* List of global face definitions (for internal use only.) */);
6871 Vface_new_frame_defaults
= Qnil
;
6873 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6874 doc
: /* *Default stipple pattern used on monochrome displays.
6875 This stipple pattern is used on monochrome displays
6876 instead of shades of gray for a face background color.
6877 See `set-face-stipple' for possible values for this variable. */);
6878 Vface_default_stipple
= build_string ("gray3");
6880 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
6881 doc
: /* An alist of defined terminal colors and their RGB values. */);
6882 Vtty_defined_color_alist
= Qnil
;
6884 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6885 doc
: /* Allowed scalable fonts.
6886 A value of nil means don't allow any scalable fonts.
6887 A value of t means allow any scalable font.
6888 Otherwise, value must be a list of regular expressions. A font may be
6889 scaled if its name matches a regular expression in the list.
6890 Note that if value is nil, a scalable font might still be used, if no
6891 other font of the appropriate family and registry is available. */);
6892 Vscalable_fonts_allowed
= Qnil
;
6894 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
6895 doc
: /* List of ignored fonts.
6896 Each element is a regular expression that matches names of fonts to
6898 Vface_ignored_fonts
= Qnil
;
6900 DEFVAR_LISP ("face-remapping-alist", &Vface_remapping_alist
,
6901 doc
: /* Alist of face remappings.
6902 Each element is of the form:
6904 (FACE REPLACEMENT...),
6906 which causes display of the face FACE to use REPLACEMENT... instead.
6907 REPLACEMENT... is interpreted the same way the value of a `face' text
6908 property is: it may be (1) A face name, (2) A list of face names, (3) A
6909 property-list of face attribute/value pairs, or (4) A list of face names
6910 intermixed with lists containing face attribute/value pairs.
6912 Multiple entries in REPLACEMENT... are merged together to form the final
6913 result, with faces or attributes earlier in the list taking precedence
6914 over those that are later.
6916 Face-name remapping cycles are suppressed; recursive references use the
6917 underlying face instead of the remapped face. So a remapping of the form:
6919 (FACE EXTRA-FACE... FACE)
6923 (FACE (FACE-ATTR VAL ...) FACE)
6925 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6926 existing definition of FACE. Note that for the default face, this isn't
6927 necessary, as every face inherits from the default face.
6929 Making this variable buffer-local is a good way to allow buffer-specific
6930 face definitions. For instance, the mode my-mode could define a face
6931 `my-mode-default', and then in the mode setup function, do:
6933 (set (make-local-variable 'face-remapping-alist)
6934 '((default my-mode-default)))). */);
6935 Vface_remapping_alist
= Qnil
;
6937 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
6938 doc
: /* Alist of fonts vs the rescaling factors.
6939 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
6940 FONT-NAME-PATTERN is a regular expression matching a font name, and
6941 RESCALE-RATIO is a floating point number to specify how much larger
6942 \(or smaller) font we should use. For instance, if a face requests
6943 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6944 Vface_font_rescale_alist
= Qnil
;
6946 #ifdef HAVE_WINDOW_SYSTEM
6947 defsubr (&Sbitmap_spec_p
);
6948 defsubr (&Sx_list_fonts
);
6949 defsubr (&Sinternal_face_x_get_resource
);
6950 defsubr (&Sx_family_fonts
);
6951 defsubr (&Sx_font_family_list
);
6952 #endif /* HAVE_WINDOW_SYSTEM */
6955 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
6956 (do not change this comment) */