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. */
508 struct named_merge_point
;
510 static void map_tty_color
P_ ((struct frame
*, struct face
*,
511 enum lface_attribute_index
, int *));
512 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
, int));
513 static int may_use_scalable_font_p
P_ ((const char *));
514 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
515 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
516 int, struct named_merge_point
*));
517 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
518 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
519 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
520 static void free_face_colors
P_ ((struct frame
*, struct face
*));
521 static int face_color_gray_p
P_ ((struct frame
*, char *));
522 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*,
524 static struct face
*realize_non_ascii_face
P_ ((struct frame
*, Lisp_Object
,
526 static struct face
*realize_x_face
P_ ((struct face_cache
*, Lisp_Object
*));
527 static struct face
*realize_tty_face
P_ ((struct face_cache
*, Lisp_Object
*));
528 static int realize_basic_faces
P_ ((struct frame
*));
529 static int realize_default_face
P_ ((struct frame
*));
530 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
531 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
532 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
533 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
534 static unsigned lface_hash
P_ ((Lisp_Object
*));
535 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
536 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
537 static void clear_face_gcs
P_ ((struct face_cache
*));
538 static void free_face_cache
P_ ((struct face_cache
*));
539 static int face_fontset
P_ ((Lisp_Object
*));
540 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
541 struct named_merge_point
*));
542 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
543 int, struct named_merge_point
*));
544 static int set_lface_from_font
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
546 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
547 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
548 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
549 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
551 #ifdef HAVE_WINDOW_SYSTEM
553 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
554 static void x_free_gc
P_ ((struct frame
*, GC
));
557 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
558 #endif /* WINDOWSNT */
561 static void x_update_menu_appearance
P_ ((struct frame
*));
563 extern void free_frame_menubar
P_ ((struct frame
*));
564 #endif /* USE_X_TOOLKIT */
566 #endif /* HAVE_WINDOW_SYSTEM */
569 /***********************************************************************
571 ***********************************************************************/
573 #ifdef HAVE_X_WINDOWS
575 #ifdef DEBUG_X_COLORS
577 /* The following is a poor mans infrastructure for debugging X color
578 allocation problems on displays with PseudoColor-8. Some X servers
579 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
580 color reference counts completely so that they don't signal an
581 error when a color is freed whose reference count is already 0.
582 Other X servers do. To help me debug this, the following code
583 implements a simple reference counting schema of its own, for a
584 single display/screen. --gerd. */
586 /* Reference counts for pixel colors. */
588 int color_count
[256];
590 /* Register color PIXEL as allocated. */
593 register_color (pixel
)
596 xassert (pixel
< 256);
597 ++color_count
[pixel
];
601 /* Register color PIXEL as deallocated. */
604 unregister_color (pixel
)
607 xassert (pixel
< 256);
608 if (color_count
[pixel
] > 0)
609 --color_count
[pixel
];
615 /* Register N colors from PIXELS as deallocated. */
618 unregister_colors (pixels
, n
)
619 unsigned long *pixels
;
623 for (i
= 0; i
< n
; ++i
)
624 unregister_color (pixels
[i
]);
628 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
629 doc
: /* Dump currently allocated colors to stderr. */)
634 fputc ('\n', stderr
);
636 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
639 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
642 fputc ('\n', stderr
);
644 fputc ('\t', stderr
);
648 fputc ('\n', stderr
);
652 #endif /* DEBUG_X_COLORS */
655 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
656 color values. Interrupt input must be blocked when this function
660 x_free_colors (f
, pixels
, npixels
)
662 unsigned long *pixels
;
665 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
667 /* If display has an immutable color map, freeing colors is not
668 necessary and some servers don't allow it. So don't do it. */
669 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
671 #ifdef DEBUG_X_COLORS
672 unregister_colors (pixels
, npixels
);
674 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
680 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
681 color values. Interrupt input must be blocked when this function
685 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
689 unsigned long *pixels
;
692 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
693 int class = dpyinfo
->visual
->class;
695 /* If display has an immutable color map, freeing colors is not
696 necessary and some servers don't allow it. So don't do it. */
697 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
699 #ifdef DEBUG_X_COLORS
700 unregister_colors (pixels
, npixels
);
702 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
707 /* Create and return a GC for use on frame F. GC values and mask
708 are given by XGCV and MASK. */
711 x_create_gc (f
, mask
, xgcv
)
718 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
725 /* Free GC which was used on frame F. */
732 eassert (interrupt_input_blocked
);
733 IF_DEBUG (xassert (--ngcs
>= 0));
734 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
737 #endif /* HAVE_X_WINDOWS */
740 /* W32 emulation of GCs */
743 x_create_gc (f
, mask
, xgcv
)
750 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
757 /* Free GC which was used on frame F. */
764 IF_DEBUG (xassert (--ngcs
>= 0));
768 #endif /* WINDOWSNT */
771 /* Mac OS emulation of GCs */
774 x_create_gc (f
, mask
, xgcv
)
781 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
792 eassert (interrupt_input_blocked
);
793 IF_DEBUG (xassert (--ngcs
>= 0));
794 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
799 /* Like strcasecmp/stricmp. Used to compare parts of font names which
804 const unsigned char *s1
, *s2
;
808 unsigned char c1
= tolower (*s1
);
809 unsigned char c2
= tolower (*s2
);
811 return c1
< c2
? -1 : 1;
816 return *s2
== 0 ? 0 : -1;
821 /* If FRAME is nil, return a pointer to the selected frame.
822 Otherwise, check that FRAME is a live frame, and return a pointer
823 to it. NPARAM is the parameter number of FRAME, for
824 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
825 Lisp function definitions. */
827 static INLINE
struct frame
*
828 frame_or_selected_frame (frame
, nparam
)
833 frame
= selected_frame
;
835 CHECK_LIVE_FRAME (frame
);
836 return XFRAME (frame
);
840 /***********************************************************************
842 ***********************************************************************/
844 /* Initialize face cache and basic faces for frame F. */
850 /* Make a face cache, if F doesn't have one. */
851 if (FRAME_FACE_CACHE (f
) == NULL
)
852 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
854 #ifdef HAVE_WINDOW_SYSTEM
855 /* Make the image cache. */
856 if (FRAME_WINDOW_P (f
))
858 if (FRAME_IMAGE_CACHE (f
) == NULL
)
859 /* Is that ever possible?? --Stef */
860 FRAME_IMAGE_CACHE (f
) = make_image_cache ();
861 ++FRAME_IMAGE_CACHE (f
)->refcount
;
863 #endif /* HAVE_WINDOW_SYSTEM */
865 /* Realize basic faces. Must have enough information in frame
866 parameters to realize basic faces at this point. */
867 #ifdef HAVE_X_WINDOWS
868 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
871 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
874 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
876 if (!realize_basic_faces (f
))
881 /* Free face cache of frame F. Called from Fdelete_frame. */
887 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
891 free_face_cache (face_cache
);
892 FRAME_FACE_CACHE (f
) = NULL
;
895 #ifdef HAVE_WINDOW_SYSTEM
896 if (FRAME_WINDOW_P (f
))
898 struct image_cache
*image_cache
= FRAME_IMAGE_CACHE (f
);
901 --image_cache
->refcount
;
902 if (image_cache
->refcount
== 0)
903 free_image_cache (f
);
906 #endif /* HAVE_WINDOW_SYSTEM */
910 /* Clear face caches, and recompute basic faces for frame F. Call
911 this after changing frame parameters on which those faces depend,
912 or when realized faces have been freed due to changing attributes
916 recompute_basic_faces (f
)
919 if (FRAME_FACE_CACHE (f
))
921 clear_face_cache (0);
922 if (!realize_basic_faces (f
))
928 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
929 try to free unused fonts, too. */
932 clear_face_cache (clear_fonts_p
)
935 #ifdef HAVE_WINDOW_SYSTEM
936 Lisp_Object tail
, frame
;
940 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
943 /* Not yet implemented. */
944 clear_font_cache (frame
);
947 /* From time to time see if we can unload some fonts. This also
948 frees all realized faces on all frames. Fonts needed by
949 faces will be loaded again when faces are realized again. */
950 clear_font_table_count
= 0;
952 FOR_EACH_FRAME (tail
, frame
)
954 struct frame
*f
= XFRAME (frame
);
955 if (FRAME_WINDOW_P (f
)
956 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
957 free_all_realized_faces (frame
);
962 /* Clear GCs of realized faces. */
963 FOR_EACH_FRAME (tail
, frame
)
966 if (FRAME_WINDOW_P (f
))
967 clear_face_gcs (FRAME_FACE_CACHE (f
));
969 clear_image_caches (Qnil
);
971 #endif /* HAVE_WINDOW_SYSTEM */
975 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
976 doc
: /* Clear face caches on all frames.
977 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
979 Lisp_Object thoroughly
;
981 clear_face_cache (!NILP (thoroughly
));
983 ++windows_or_buffers_changed
;
988 /***********************************************************************
990 ***********************************************************************/
992 #ifdef HAVE_WINDOW_SYSTEM
994 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
995 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
996 A bitmap specification is either a string, a file name, or a list
997 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
998 HEIGHT is its height, and DATA is a string containing the bits of
999 the pixmap. Bits are stored row by row, each row occupies
1000 \(WIDTH + 7)/8 bytes. */)
1006 if (STRINGP (object
))
1007 /* If OBJECT is a string, it's a file name. */
1009 else if (CONSP (object
))
1011 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1012 HEIGHT must be integers > 0, and DATA must be string large
1013 enough to hold a bitmap of the specified size. */
1014 Lisp_Object width
, height
, data
;
1016 height
= width
= data
= Qnil
;
1020 width
= XCAR (object
);
1021 object
= XCDR (object
);
1024 height
= XCAR (object
);
1025 object
= XCDR (object
);
1027 data
= XCAR (object
);
1031 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1033 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1035 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1040 return pixmap_p
? Qt
: Qnil
;
1044 /* Load a bitmap according to NAME (which is either a file name or a
1045 pixmap spec) for use on frame F. Value is the bitmap_id (see
1046 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1047 bitmap cannot be loaded, display a message saying so, and return
1048 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1049 if these pointers are not null. */
1052 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1055 unsigned int *w_ptr
, *h_ptr
;
1062 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
1067 /* Decode a bitmap spec into a bitmap. */
1072 w
= XINT (Fcar (name
));
1073 h
= XINT (Fcar (Fcdr (name
)));
1074 bits
= Fcar (Fcdr (Fcdr (name
)));
1076 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1081 /* It must be a string -- a file name. */
1082 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1088 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1099 ++npixmaps_allocated
;
1102 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1105 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1111 #endif /* HAVE_WINDOW_SYSTEM */
1115 /***********************************************************************
1117 ***********************************************************************/
1119 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1120 RGB_LIST should contain (at least) 3 lisp integers.
1121 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1124 parse_rgb_list (rgb_list
, color
)
1125 Lisp_Object rgb_list
;
1128 #define PARSE_RGB_LIST_FIELD(field) \
1129 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1131 color->field = XINT (XCAR (rgb_list)); \
1132 rgb_list = XCDR (rgb_list); \
1137 PARSE_RGB_LIST_FIELD (red
);
1138 PARSE_RGB_LIST_FIELD (green
);
1139 PARSE_RGB_LIST_FIELD (blue
);
1145 /* Lookup on frame F the color described by the lisp string COLOR.
1146 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1147 non-zero, then the `standard' definition of the same color is
1151 tty_lookup_color (f
, color
, tty_color
, std_color
)
1154 XColor
*tty_color
, *std_color
;
1156 Lisp_Object frame
, color_desc
;
1158 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1161 XSETFRAME (frame
, f
);
1163 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1164 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1168 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1171 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1173 rgb
= XCDR (XCDR (color_desc
));
1174 if (! parse_rgb_list (rgb
, tty_color
))
1177 /* Should we fill in STD_COLOR too? */
1180 /* Default STD_COLOR to the same as TTY_COLOR. */
1181 *std_color
= *tty_color
;
1183 /* Do a quick check to see if the returned descriptor is
1184 actually _exactly_ equal to COLOR, otherwise we have to
1185 lookup STD_COLOR separately. If it's impossible to lookup
1186 a standard color, we just give up and use TTY_COLOR. */
1187 if ((!STRINGP (XCAR (color_desc
))
1188 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1189 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1191 /* Look up STD_COLOR separately. */
1192 rgb
= call1 (Qtty_color_standard_values
, color
);
1193 if (! parse_rgb_list (rgb
, std_color
))
1200 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1201 /* We were called early during startup, and the colors are not
1202 yet set up in tty-defined-color-alist. Don't return a failure
1203 indication, since this produces the annoying "Unable to
1204 load color" messages in the *Messages* buffer. */
1207 /* tty-color-desc seems to have returned a bad value. */
1211 /* A version of defined_color for non-X frames. */
1214 tty_defined_color (f
, color_name
, color_def
, alloc
)
1223 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1225 color_def
->blue
= 0;
1226 color_def
->green
= 0;
1229 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1231 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1233 if (strcmp (color_name
, "unspecified-fg") == 0)
1234 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1235 else if (strcmp (color_name
, "unspecified-bg") == 0)
1236 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1239 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1246 /* Decide if color named COLOR_NAME is valid for the display
1247 associated with the frame F; if so, return the rgb values in
1248 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1250 This does the right thing for any type of frame. */
1253 defined_color (f
, color_name
, color_def
, alloc
)
1259 if (!FRAME_WINDOW_P (f
))
1260 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1261 #ifdef HAVE_X_WINDOWS
1262 else if (FRAME_X_P (f
))
1263 return x_defined_color (f
, color_name
, color_def
, alloc
);
1266 else if (FRAME_W32_P (f
))
1267 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1270 else if (FRAME_MAC_P (f
))
1271 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1278 /* Given the index IDX of a tty color on frame F, return its name, a
1282 tty_color_name (f
, idx
)
1286 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1289 Lisp_Object coldesc
;
1291 XSETFRAME (frame
, f
);
1292 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1294 if (!NILP (coldesc
))
1295 return XCAR (coldesc
);
1298 /* We can have an MSDOG frame under -nw for a short window of
1299 opportunity before internal_terminal_init is called. DTRT. */
1300 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1301 return msdos_stdcolor_name (idx
);
1304 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1305 return build_string (unspecified_fg
);
1306 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1307 return build_string (unspecified_bg
);
1309 return Qunspecified
;
1313 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1316 The criterion implemented here is not a terribly sophisticated one. */
1319 face_color_gray_p (f
, color_name
)
1326 if (defined_color (f
, color_name
, &color
, 0))
1327 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1328 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1330 ((eabs (color
.red
- color
.green
)
1331 < max (color
.red
, color
.green
) / 20)
1332 && (eabs (color
.green
- color
.blue
)
1333 < max (color
.green
, color
.blue
) / 20)
1334 && (eabs (color
.blue
- color
.red
)
1335 < max (color
.blue
, color
.red
) / 20)));
1343 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1344 BACKGROUND_P non-zero means the color will be used as background
1348 face_color_supported_p (f
, color_name
, background_p
)
1356 XSETFRAME (frame
, f
);
1358 #ifdef HAVE_WINDOW_SYSTEM
1360 ? (!NILP (Fxw_display_color_p (frame
))
1361 || xstrcasecmp (color_name
, "black") == 0
1362 || xstrcasecmp (color_name
, "white") == 0
1364 && face_color_gray_p (f
, color_name
))
1365 || (!NILP (Fx_display_grayscale_p (frame
))
1366 && face_color_gray_p (f
, color_name
)))
1369 tty_defined_color (f
, color_name
, ¬_used
, 0);
1373 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1374 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1375 FRAME specifies the frame and thus the display for interpreting COLOR.
1376 If FRAME is nil or omitted, use the selected frame. */)
1378 Lisp_Object color
, frame
;
1382 CHECK_STRING (color
);
1384 frame
= selected_frame
;
1386 CHECK_FRAME (frame
);
1388 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1392 DEFUN ("color-supported-p", Fcolor_supported_p
,
1393 Scolor_supported_p
, 1, 3, 0,
1394 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1395 BACKGROUND-P non-nil means COLOR is used as a background.
1396 Otherwise, this function tells whether it can be used as a foreground.
1397 If FRAME is nil or omitted, use the selected frame.
1398 COLOR must be a valid color name. */)
1399 (color
, frame
, background_p
)
1400 Lisp_Object frame
, color
, background_p
;
1404 CHECK_STRING (color
);
1406 frame
= selected_frame
;
1408 CHECK_FRAME (frame
);
1410 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1416 /* Load color with name NAME for use by face FACE on frame F.
1417 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1418 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1419 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1420 pixel color. If color cannot be loaded, display a message, and
1421 return the foreground, background or underline color of F, but
1422 record that fact in flags of the face so that we don't try to free
1426 load_color (f
, face
, name
, target_index
)
1430 enum lface_attribute_index target_index
;
1434 xassert (STRINGP (name
));
1435 xassert (target_index
== LFACE_FOREGROUND_INDEX
1436 || target_index
== LFACE_BACKGROUND_INDEX
1437 || target_index
== LFACE_UNDERLINE_INDEX
1438 || target_index
== LFACE_OVERLINE_INDEX
1439 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1440 || target_index
== LFACE_BOX_INDEX
);
1442 /* if the color map is full, defined_color will return a best match
1443 to the values in an existing cell. */
1444 if (!defined_color (f
, SDATA (name
), &color
, 1))
1446 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1448 switch (target_index
)
1450 case LFACE_FOREGROUND_INDEX
:
1451 face
->foreground_defaulted_p
= 1;
1452 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1455 case LFACE_BACKGROUND_INDEX
:
1456 face
->background_defaulted_p
= 1;
1457 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1460 case LFACE_UNDERLINE_INDEX
:
1461 face
->underline_defaulted_p
= 1;
1462 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1465 case LFACE_OVERLINE_INDEX
:
1466 face
->overline_color_defaulted_p
= 1;
1467 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1470 case LFACE_STRIKE_THROUGH_INDEX
:
1471 face
->strike_through_color_defaulted_p
= 1;
1472 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1475 case LFACE_BOX_INDEX
:
1476 face
->box_color_defaulted_p
= 1;
1477 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1486 ++ncolors_allocated
;
1493 #ifdef HAVE_WINDOW_SYSTEM
1495 /* Load colors for face FACE which is used on frame F. Colors are
1496 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1497 of ATTRS. If the background color specified is not supported on F,
1498 try to emulate gray colors with a stipple from Vface_default_stipple. */
1501 load_face_colors (f
, face
, attrs
)
1508 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1509 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1511 /* Swap colors if face is inverse-video. */
1512 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1520 /* Check for support for foreground, not for background because
1521 face_color_supported_p is smart enough to know that grays are
1522 "supported" as background because we are supposed to use stipple
1524 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1525 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1527 x_destroy_bitmap (f
, face
->stipple
);
1528 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1529 &face
->pixmap_w
, &face
->pixmap_h
);
1532 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1533 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1537 /* Free color PIXEL on frame F. */
1540 unload_color (f
, pixel
)
1542 unsigned long pixel
;
1544 #ifdef HAVE_X_WINDOWS
1548 x_free_colors (f
, &pixel
, 1);
1555 /* Free colors allocated for FACE. */
1558 free_face_colors (f
, face
)
1562 #ifdef HAVE_X_WINDOWS
1563 if (face
->colors_copied_bitwise_p
)
1568 if (!face
->foreground_defaulted_p
)
1570 x_free_colors (f
, &face
->foreground
, 1);
1571 IF_DEBUG (--ncolors_allocated
);
1574 if (!face
->background_defaulted_p
)
1576 x_free_colors (f
, &face
->background
, 1);
1577 IF_DEBUG (--ncolors_allocated
);
1580 if (face
->underline_p
1581 && !face
->underline_defaulted_p
)
1583 x_free_colors (f
, &face
->underline_color
, 1);
1584 IF_DEBUG (--ncolors_allocated
);
1587 if (face
->overline_p
1588 && !face
->overline_color_defaulted_p
)
1590 x_free_colors (f
, &face
->overline_color
, 1);
1591 IF_DEBUG (--ncolors_allocated
);
1594 if (face
->strike_through_p
1595 && !face
->strike_through_color_defaulted_p
)
1597 x_free_colors (f
, &face
->strike_through_color
, 1);
1598 IF_DEBUG (--ncolors_allocated
);
1601 if (face
->box
!= FACE_NO_BOX
1602 && !face
->box_color_defaulted_p
)
1604 x_free_colors (f
, &face
->box_color
, 1);
1605 IF_DEBUG (--ncolors_allocated
);
1609 #endif /* HAVE_X_WINDOWS */
1612 #endif /* HAVE_WINDOW_SYSTEM */
1616 /***********************************************************************
1618 ***********************************************************************/
1620 /* An enumerator for each field of an XLFD font name. */
1641 /* An enumerator for each possible slant value of a font. Taken from
1642 the XLFD specification. */
1650 XLFD_SLANT_REVERSE_ITALIC
,
1651 XLFD_SLANT_REVERSE_OBLIQUE
,
1655 /* Relative font weight according to XLFD documentation. */
1659 XLFD_WEIGHT_UNKNOWN
,
1660 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1661 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1662 XLFD_WEIGHT_LIGHT
, /* 30 */
1663 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1664 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1665 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1666 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1667 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1668 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1671 /* Relative proportionate width. */
1675 XLFD_SWIDTH_UNKNOWN
,
1676 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1677 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1678 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1679 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1680 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1681 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1682 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1683 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1684 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1687 /* Order by which font selection chooses fonts. The default values
1688 mean `first, find a best match for the font width, then for the
1689 font height, then for weight, then for slant.' This variable can be
1690 set via set-face-font-sort-order. */
1693 static int font_sort_order
[4] = {
1694 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1697 static int font_sort_order
[4];
1701 #ifdef HAVE_WINDOW_SYSTEM
1703 /* Return a rescaling ratio of a font of NAME. */
1706 font_rescale_ratio (name
)
1709 Lisp_Object tail
, elt
;
1711 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
1714 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
1715 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
1716 return XFLOAT_DATA (XCDR (elt
));
1721 static enum font_property_index font_props_for_sorting
[FONT_SIZE_INDEX
];
1724 compare_fonts_by_sort_order (v1
, v2
)
1725 const void *v1
, *v2
;
1727 Lisp_Object font1
= *(Lisp_Object
*) v1
;
1728 Lisp_Object font2
= *(Lisp_Object
*) v2
;
1731 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
1733 enum font_property_index idx
= font_props_for_sorting
[i
];
1734 Lisp_Object val1
= AREF (font1
, idx
), val2
= AREF (font2
, idx
);
1737 if (idx
<= FONT_REGISTRY_INDEX
)
1740 result
= STRINGP (val2
) ? strcmp (SDATA (val1
), SDATA (val2
)) : -1;
1742 result
= STRINGP (val2
) ? 1 : 0;
1746 if (INTEGERP (val1
))
1747 result
= INTEGERP (val2
) ? XINT (val1
) - XINT (val2
) : -1;
1749 result
= INTEGERP (val2
) ? 1 : 0;
1757 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
1758 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
1759 If FAMILY is omitted or nil, list all families.
1760 Otherwise, FAMILY must be a string, possibly containing wildcards
1762 If FRAME is omitted or nil, use the selected frame.
1763 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
1764 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
1765 FAMILY is the font family name. POINT-SIZE is the size of the
1766 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
1767 width, weight and slant of the font. These symbols are the same as for
1768 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
1769 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
1770 giving the registry and encoding of the font.
1771 The result list is sorted according to the current setting of
1772 the face font sort order. */)
1774 Lisp_Object family
, frame
;
1776 Lisp_Object font_spec
, vec
;
1781 frame
= selected_frame
;
1782 CHECK_LIVE_FRAME (frame
);
1784 font_spec
= Ffont_spec (0, NULL
);
1787 CHECK_STRING (family
);
1788 font_parse_family_registry (family
, Qnil
, font_spec
);
1790 vec
= font_list_entities (frame
, font_spec
);
1791 nfonts
= ASIZE (vec
);
1796 for (i
= 0; i
< 4; i
++)
1797 switch (font_sort_order
[i
])
1800 font_props_for_sorting
[i
] = FONT_WIDTH_INDEX
; break;
1801 case XLFD_POINT_SIZE
:
1802 font_props_for_sorting
[i
] = FONT_SIZE_INDEX
; break;
1804 font_props_for_sorting
[i
] = FONT_WEIGHT_INDEX
; break;
1806 font_props_for_sorting
[i
] = FONT_SLANT_INDEX
; break;
1808 font_props_for_sorting
[i
++] = FONT_FAMILY_INDEX
;
1809 font_props_for_sorting
[i
++] = FONT_FOUNDRY_INDEX
;
1810 font_props_for_sorting
[i
++] = FONT_ADSTYLE_INDEX
;
1811 font_props_for_sorting
[i
++] = FONT_REGISTRY_INDEX
;
1813 qsort (XVECTOR (vec
)->contents
, nfonts
, sizeof (Lisp_Object
),
1814 compare_fonts_by_sort_order
);
1818 for (i
= nfonts
- 1; i
>= 0; --i
)
1820 Lisp_Object font
= AREF (vec
, i
);
1821 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
1823 Lisp_Object spacing
;
1825 ASET (v
, 0, AREF (font
, FONT_FAMILY_INDEX
));
1826 ASET (v
, 1, FONT_WIDTH_SYMBOLIC (font
));
1827 point
= PIXEL_TO_POINT (XINT (AREF (font
, FONT_SIZE_INDEX
)) * 10,
1828 XFRAME (frame
)->resy
);
1829 ASET (v
, 2, make_number (point
));
1830 ASET (v
, 3, FONT_WEIGHT_SYMBOLIC (font
));
1831 ASET (v
, 4, FONT_SLANT_SYMBOLIC (font
));
1832 spacing
= Ffont_get (font
, QCspacing
);
1833 ASET (v
, 5, (NILP (spacing
) || EQ (spacing
, Qp
)) ? Qnil
: Qt
);
1834 ASET (v
, 6, Ffont_xlfd_name (font
, Qnil
));
1835 ASET (v
, 7, AREF (font
, FONT_REGISTRY_INDEX
));
1837 result
= Fcons (v
, result
);
1844 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
1846 doc
: /* Return a list of available font families on FRAME.
1847 If FRAME is omitted or nil, use the selected frame.
1848 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
1849 is a font family, and FIXED-P is non-nil if fonts of that family
1850 are fixed-pitch. */)
1854 return Ffont_family_list (frame
);
1858 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
1859 doc
: /* Return a list of the names of available fonts matching PATTERN.
1860 If optional arguments FACE and FRAME are specified, return only fonts
1861 the same size as FACE on FRAME.
1862 PATTERN is a string, perhaps with wildcard characters;
1863 the * character matches any substring, and
1864 the ? character matches any single character.
1865 PATTERN is case-insensitive.
1866 FACE is a face name--a symbol.
1868 The return value is a list of strings, suitable as arguments to
1871 Fonts Emacs can't use may or may not be excluded
1872 even if they match PATTERN and FACE.
1873 The optional fourth argument MAXIMUM sets a limit on how many
1874 fonts to match. The first MAXIMUM fonts are reported.
1875 The optional fifth argument WIDTH, if specified, is a number of columns
1876 occupied by a character of a font. In that case, return only fonts
1877 the WIDTH times as wide as FACE on FRAME. */)
1878 (pattern
, face
, frame
, maximum
, width
)
1879 Lisp_Object pattern
, face
, frame
, maximum
, width
;
1885 CHECK_STRING (pattern
);
1887 if (! NILP (maximum
))
1888 CHECK_NATNUM (maximum
);
1891 CHECK_NUMBER (width
);
1893 /* We can't simply call check_x_frame because this function may be
1894 called before any frame is created. */
1896 frame
= selected_frame
;
1897 f
= frame_or_selected_frame (frame
, 2);
1898 if (! FRAME_WINDOW_P (f
))
1900 /* Perhaps we have not yet created any frame. */
1906 /* Determine the width standard for comparison with the fonts we find. */
1912 /* This is of limited utility since it works with character
1913 widths. Keep it for compatibility. --gerd. */
1914 int face_id
= lookup_named_face (f
, face
, 0);
1915 struct face
*face
= (face_id
< 0
1917 : FACE_FROM_ID (f
, face_id
));
1919 if (face
&& face
->font
)
1921 size
= face
->font
->pixel_size
;
1922 avgwidth
= face
->font
->average_width
;
1926 size
= FRAME_FONT (f
)->pixel_size
;
1927 avgwidth
= FRAME_FONT (f
)->average_width
;
1930 avgwidth
*= XINT (width
);
1934 Lisp_Object font_spec
;
1935 Lisp_Object args
[2], tail
;
1937 font_spec
= font_spec_from_name (pattern
);
1940 Ffont_put (font_spec
, QCsize
, make_number (size
));
1941 Ffont_put (font_spec
, QCavgwidth
, make_number (avgwidth
));
1943 args
[0] = Flist_fonts (font_spec
, frame
, maximum
, Qnil
);
1944 for (tail
= args
[0]; CONSP (tail
); tail
= XCDR (tail
))
1945 XSETCAR (tail
, Ffont_xlfd_name (XCAR (tail
), Qnil
));
1947 /* We don't have to check fontsets. */
1949 args
[1] = list_fontsets (f
, pattern
, size
);
1950 return Fnconc (2, args
);
1954 #endif /* HAVE_WINDOW_SYSTEM */
1958 /***********************************************************************
1960 ***********************************************************************/
1962 /* Access face attributes of face LFACE, a Lisp vector. */
1964 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
1965 #define LFACE_FOUNDRY(LFACE) AREF ((LFACE), LFACE_FOUNDRY_INDEX)
1966 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
1967 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
1968 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
1969 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
1970 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
1971 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
1972 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
1973 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
1974 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
1975 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
1976 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
1977 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
1978 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
1979 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
1980 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
1982 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
1983 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
1985 #define LFACEP(LFACE) \
1987 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
1988 && EQ (AREF (LFACE, 0), Qface))
1993 /* Check consistency of Lisp face attribute vector ATTRS. */
1996 check_lface_attrs (attrs
)
1999 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2000 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
2001 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2002 xassert (UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
2003 || IGNORE_DEFFACE_P (attrs
[LFACE_FOUNDRY_INDEX
])
2004 || STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]));
2005 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2006 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
2007 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2008 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2009 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
2010 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
2011 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2012 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2013 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2014 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
2015 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2016 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2017 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
2018 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2019 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2020 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
2021 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2022 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2023 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2024 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
2025 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2026 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2027 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2028 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2029 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2030 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2031 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2032 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
2033 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2034 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2035 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2036 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2037 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2038 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
2039 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2040 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2041 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
2042 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2043 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2044 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
2045 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2046 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2047 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
2048 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2049 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2050 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2051 #ifdef HAVE_WINDOW_SYSTEM
2052 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2053 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
2054 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2055 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2056 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2057 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
2058 || FONTP (attrs
[LFACE_FONT_INDEX
]));
2059 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
2060 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
2065 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2073 xassert (LFACEP (lface
));
2074 check_lface_attrs (XVECTOR (lface
)->contents
);
2078 #else /* GLYPH_DEBUG == 0 */
2080 #define check_lface_attrs(attrs) (void) 0
2081 #define check_lface(lface) (void) 0
2083 #endif /* GLYPH_DEBUG == 0 */
2087 /* Face-merge cycle checking. */
2089 enum named_merge_point_kind
2091 NAMED_MERGE_POINT_NORMAL
,
2092 NAMED_MERGE_POINT_REMAP
2095 /* A `named merge point' is simply a point during face-merging where we
2096 look up a face by name. We keep a stack of which named lookups we're
2097 currently processing so that we can easily detect cycles, using a
2098 linked- list of struct named_merge_point structures, typically
2099 allocated on the stack frame of the named lookup functions which are
2100 active (so no consing is required). */
2101 struct named_merge_point
2103 Lisp_Object face_name
;
2104 enum named_merge_point_kind named_merge_point_kind
;
2105 struct named_merge_point
*prev
;
2109 /* If a face merging cycle is detected for FACE_NAME, return 0,
2110 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
2111 FACE_NAME and NAMED_MERGE_POINT_KIND, as the head of the linked list
2112 pointed to by NAMED_MERGE_POINTS, and return 1. */
2115 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
2116 Lisp_Object face_name
,
2117 enum named_merge_point_kind named_merge_point_kind
,
2118 struct named_merge_point
**named_merge_points
)
2120 struct named_merge_point
*prev
;
2122 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
2123 if (EQ (face_name
, prev
->face_name
))
2125 if (prev
->named_merge_point_kind
== named_merge_point_kind
)
2126 /* A cycle, so fail. */
2128 else if (prev
->named_merge_point_kind
== NAMED_MERGE_POINT_REMAP
)
2129 /* A remap `hides ' any previous normal merge points
2130 (because the remap means that it's actually different face),
2131 so as we know the current merge point must be normal, we
2132 can just assume it's OK. */
2136 new_named_merge_point
->face_name
= face_name
;
2137 new_named_merge_point
->named_merge_point_kind
= named_merge_point_kind
;
2138 new_named_merge_point
->prev
= *named_merge_points
;
2140 *named_merge_points
= new_named_merge_point
;
2147 #if 0 /* Seems to be unused. */
2149 internal_resolve_face_name (nargs
, args
)
2153 return Fget (args
[0], args
[1]);
2157 resolve_face_name_error (ignore
)
2164 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2165 to make it a symbol. If FACE_NAME is an alias for another face,
2166 return that face's name.
2168 Return default face in case of errors. */
2171 resolve_face_name (face_name
, signal_p
)
2172 Lisp_Object face_name
;
2175 Lisp_Object orig_face
;
2176 Lisp_Object tortoise
, hare
;
2178 if (STRINGP (face_name
))
2179 face_name
= intern (SDATA (face_name
));
2181 if (NILP (face_name
) || !SYMBOLP (face_name
))
2184 orig_face
= face_name
;
2185 tortoise
= hare
= face_name
;
2190 hare
= Fget (hare
, Qface_alias
);
2191 if (NILP (hare
) || !SYMBOLP (hare
))
2195 hare
= Fget (hare
, Qface_alias
);
2196 if (NILP (hare
) || !SYMBOLP (hare
))
2199 tortoise
= Fget (tortoise
, Qface_alias
);
2200 if (EQ (hare
, tortoise
))
2203 xsignal1 (Qcircular_list
, orig_face
);
2212 /* Return the face definition of FACE_NAME on frame F. F null means
2213 return the definition for new frames. FACE_NAME may be a string or
2214 a symbol (apparently Emacs 20.2 allowed strings as face names in
2215 face text properties; Ediff uses that). If SIGNAL_P is non-zero,
2216 signal an error if FACE_NAME is not a valid face name. If SIGNAL_P
2217 is zero, value is nil if FACE_NAME is not a valid face name. */
2218 static INLINE Lisp_Object
2219 lface_from_face_name_no_resolve (f
, face_name
, signal_p
)
2221 Lisp_Object face_name
;
2227 lface
= assq_no_quit (face_name
, f
->face_alist
);
2229 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2232 lface
= XCDR (lface
);
2234 signal_error ("Invalid face", face_name
);
2236 check_lface (lface
);
2241 /* Return the face definition of FACE_NAME on frame F. F null means
2242 return the definition for new frames. FACE_NAME may be a string or
2243 a symbol (apparently Emacs 20.2 allowed strings as face names in
2244 face text properties; Ediff uses that). If FACE_NAME is an alias
2245 for another face, return that face's definition. If SIGNAL_P is
2246 non-zero, signal an error if FACE_NAME is not a valid face name.
2247 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2249 static INLINE Lisp_Object
2250 lface_from_face_name (f
, face_name
, signal_p
)
2252 Lisp_Object face_name
;
2255 face_name
= resolve_face_name (face_name
, signal_p
);
2256 return lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2260 /* Get face attributes of face FACE_NAME from frame-local faces on
2261 frame F. Store the resulting attributes in ATTRS which must point
2262 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2263 is non-zero, signal an error if FACE_NAME does not name a face.
2264 Otherwise, value is zero if FACE_NAME is not a face. */
2267 get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
)
2269 Lisp_Object face_name
;
2275 lface
= lface_from_face_name_no_resolve (f
, face_name
, signal_p
);
2278 bcopy (XVECTOR (lface
)->contents
, attrs
,
2279 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2281 return !NILP (lface
);
2284 /* Get face attributes of face FACE_NAME from frame-local faces on frame
2285 F. Store the resulting attributes in ATTRS which must point to a
2286 vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If FACE_NAME is an
2287 alias for another face, use that face's definition. If SIGNAL_P is
2288 non-zero, signal an error if FACE_NAME does not name a face.
2289 Otherwise, value is zero if FACE_NAME is not a face. */
2292 get_lface_attributes (f
, face_name
, attrs
, signal_p
, named_merge_points
)
2294 Lisp_Object face_name
;
2297 struct named_merge_point
*named_merge_points
;
2299 Lisp_Object face_remapping
;
2301 face_name
= resolve_face_name (face_name
, signal_p
);
2303 /* See if SYMBOL has been remapped to some other face (usually this
2304 is done buffer-locally). */
2305 face_remapping
= assq_no_quit (face_name
, Vface_remapping_alist
);
2306 if (CONSP (face_remapping
))
2308 struct named_merge_point named_merge_point
;
2310 if (push_named_merge_point (&named_merge_point
,
2311 face_name
, NAMED_MERGE_POINT_REMAP
,
2312 &named_merge_points
))
2316 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2317 attrs
[i
] = Qunspecified
;
2319 return merge_face_ref (f
, XCDR (face_remapping
), attrs
,
2320 signal_p
, named_merge_points
);
2324 /* Default case, no remapping. */
2325 return get_lface_attributes_no_remap (f
, face_name
, attrs
, signal_p
);
2329 /* Non-zero if all attributes in face attribute vector ATTRS are
2330 specified, i.e. are non-nil. */
2333 lface_fully_specified_p (attrs
)
2338 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2339 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2340 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
]))
2342 /* MAC_TODO: No stipple support on Mac OS yet, this index is
2343 always unspecified. */
2344 && i
!= LFACE_STIPPLE_INDEX
2349 return i
== LFACE_VECTOR_SIZE
;
2352 #ifdef HAVE_WINDOW_SYSTEM
2354 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT.
2355 If FORCE_P is zero, set only unspecified attributes of LFACE. The
2356 exception is `font' attribute. It is set to FONT_OBJECT regardless
2360 set_lface_from_font (f
, lface
, font_object
, force_p
)
2362 Lisp_Object lface
, font_object
;
2366 struct font
*font
= XFONT_OBJECT (font_object
);
2368 /* Set attributes only if unspecified, otherwise face defaults for
2369 new frames would never take effect. If the font doesn't have a
2370 specific property, set a normal value for that. */
2372 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2374 Lisp_Object family
= AREF (font_object
, FONT_FAMILY_INDEX
);
2376 LFACE_FAMILY (lface
) = SYMBOL_NAME (family
);
2379 if (force_p
|| UNSPECIFIEDP (LFACE_FOUNDRY (lface
)))
2381 Lisp_Object foundry
= AREF (font_object
, FONT_FOUNDRY_INDEX
);
2383 LFACE_FOUNDRY (lface
) = SYMBOL_NAME (foundry
);
2386 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2388 int pt
= PIXEL_TO_POINT (font
->pixel_size
* 10, f
->resy
);
2391 LFACE_HEIGHT (lface
) = make_number (pt
);
2394 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2396 val
= FONT_WEIGHT_FOR_FACE (font_object
);
2397 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
:Qnormal
;
2399 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2401 val
= FONT_SLANT_FOR_FACE (font_object
);
2402 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: Qnormal
;
2404 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2406 val
= FONT_WIDTH_FOR_FACE (font_object
);
2407 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: Qnormal
;
2410 LFACE_FONT (lface
) = font_object
;
2414 #endif /* HAVE_WINDOW_SYSTEM */
2417 /* Merges the face height FROM with the face height TO, and returns the
2418 merged height. If FROM is an invalid height, then INVALID is
2419 returned instead. FROM and TO may be either absolute face heights or
2420 `relative' heights; the returned value is always an absolute height
2421 unless both FROM and TO are relative. GCPRO is a lisp value that
2422 will be protected from garbage-collection if this function makes a
2426 merge_face_heights (from
, to
, invalid
)
2427 Lisp_Object from
, to
, invalid
;
2429 Lisp_Object result
= invalid
;
2431 if (INTEGERP (from
))
2432 /* FROM is absolute, just use it as is. */
2434 else if (FLOATP (from
))
2435 /* FROM is a scale, use it to adjust TO. */
2438 /* relative X absolute => absolute */
2439 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
2440 else if (FLOATP (to
))
2441 /* relative X relative => relative */
2442 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
2443 else if (UNSPECIFIEDP (to
))
2446 else if (FUNCTIONP (from
))
2447 /* FROM is a function, which use to adjust TO. */
2449 /* Call function with current height as argument.
2450 From is the new height. */
2451 Lisp_Object args
[2];
2455 result
= safe_call (2, args
);
2457 /* Ensure that if TO was absolute, so is the result. */
2458 if (INTEGERP (to
) && !INTEGERP (result
))
2466 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
2467 store the resulting attributes in TO, which must be already be
2468 completely specified and contain only absolute attributes. Every
2469 specified attribute of FROM overrides the corresponding attribute of
2470 TO; relative attributes in FROM are merged with the absolute value in
2471 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
2472 loops in face inheritance/remapping; it should be 0 when called from
2476 merge_face_vectors (f
, from
, to
, named_merge_points
)
2478 Lisp_Object
*from
, *to
;
2479 struct named_merge_point
*named_merge_points
;
2483 /* If FROM inherits from some other faces, merge their attributes into
2484 TO before merging FROM's direct attributes. Note that an :inherit
2485 attribute of `unspecified' is the same as one of nil; we never
2486 merge :inherit attributes, so nil is more correct, but lots of
2487 other code uses `unspecified' as a generic value for face attributes. */
2488 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
2489 && !NILP (from
[LFACE_INHERIT_INDEX
]))
2490 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
2492 i
= LFACE_FONT_INDEX
;
2493 if (!UNSPECIFIEDP (from
[i
]))
2495 if (!UNSPECIFIEDP (to
[i
]))
2496 to
[i
] = Fmerge_font_spec (from
[i
], to
[i
]);
2498 to
[i
] = Fcopy_font_spec (from
[i
]);
2499 ASET (to
[i
], FONT_SIZE_INDEX
, Qnil
);
2502 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2503 if (!UNSPECIFIEDP (from
[i
]))
2505 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
2507 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
2508 font_clear_prop (to
, FONT_SIZE_INDEX
);
2510 else if (i
!= LFACE_FONT_INDEX
)
2513 if (i
>= LFACE_FAMILY_INDEX
&& i
<=LFACE_SLANT_INDEX
)
2514 font_clear_prop (to
,
2515 (i
== LFACE_FAMILY_INDEX
? FONT_FAMILY_INDEX
2516 : i
== LFACE_FOUNDRY_INDEX
? FONT_FOUNDRY_INDEX
2517 : i
== LFACE_SWIDTH_INDEX
? FONT_WIDTH_INDEX
2518 : i
== LFACE_HEIGHT_INDEX
? FONT_SIZE_INDEX
2519 : i
== LFACE_WEIGHT_INDEX
? FONT_WEIGHT_INDEX
2520 : FONT_SLANT_INDEX
));
2524 /* If `font' attribute is specified, reflect the font properties in
2525 it to the other attributes. */
2526 if (0 && !UNSPECIFIEDP (to
[LFACE_FONT_INDEX
]))
2527 font_update_lface (f
, to
);
2529 /* TO is always an absolute face, which should inherit from nothing.
2530 We blindly copy the :inherit attribute above and fix it up here. */
2531 to
[LFACE_INHERIT_INDEX
] = Qnil
;
2534 /* Merge the named face FACE_NAME on frame F, into the vector of face
2535 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
2536 inheritance. Returns true if FACE_NAME is a valid face name and
2537 merging succeeded. */
2540 merge_named_face (f
, face_name
, to
, named_merge_points
)
2542 Lisp_Object face_name
;
2544 struct named_merge_point
*named_merge_points
;
2546 struct named_merge_point named_merge_point
;
2548 if (push_named_merge_point (&named_merge_point
,
2549 face_name
, NAMED_MERGE_POINT_NORMAL
,
2550 &named_merge_points
))
2552 struct gcpro gcpro1
;
2553 Lisp_Object from
[LFACE_VECTOR_SIZE
];
2554 int ok
= get_lface_attributes (f
, face_name
, from
, 0, named_merge_points
);
2558 GCPRO1 (named_merge_point
.face_name
);
2559 merge_face_vectors (f
, from
, to
, named_merge_points
);
2570 /* Merge face attributes from the lisp `face reference' FACE_REF on
2571 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
2572 problems with FACE_REF cause an error message to be shown. Return
2573 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
2574 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
2575 list structure; it may be 0 for most callers.
2577 FACE_REF may be a single face specification or a list of such
2578 specifications. Each face specification can be:
2580 1. A symbol or string naming a Lisp face.
2582 2. A property list of the form (KEYWORD VALUE ...) where each
2583 KEYWORD is a face attribute name, and value is an appropriate value
2586 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2587 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2588 for compatibility with 20.2.
2590 Face specifications earlier in lists take precedence over later
2594 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
2596 Lisp_Object face_ref
;
2599 struct named_merge_point
*named_merge_points
;
2601 int ok
= 1; /* Succeed without an error? */
2603 if (CONSP (face_ref
))
2605 Lisp_Object first
= XCAR (face_ref
);
2607 if (EQ (first
, Qforeground_color
)
2608 || EQ (first
, Qbackground_color
))
2610 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2611 . COLOR). COLOR must be a string. */
2612 Lisp_Object color_name
= XCDR (face_ref
);
2613 Lisp_Object color
= first
;
2615 if (STRINGP (color_name
))
2617 if (EQ (color
, Qforeground_color
))
2618 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2620 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2625 add_to_log ("Invalid face color", color_name
, Qnil
);
2629 else if (SYMBOLP (first
)
2630 && *SDATA (SYMBOL_NAME (first
)) == ':')
2632 /* Assume this is the property list form. */
2633 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
2635 Lisp_Object keyword
= XCAR (face_ref
);
2636 Lisp_Object value
= XCAR (XCDR (face_ref
));
2639 /* Specifying `unspecified' is a no-op. */
2640 if (EQ (value
, Qunspecified
))
2642 else if (EQ (keyword
, QCfamily
))
2644 if (STRINGP (value
))
2646 to
[LFACE_FAMILY_INDEX
] = value
;
2647 font_clear_prop (to
, FONT_FAMILY_INDEX
);
2652 else if (EQ (keyword
, QCfoundry
))
2654 if (STRINGP (value
))
2656 to
[LFACE_FOUNDRY_INDEX
] = value
;
2657 font_clear_prop (to
, FONT_FOUNDRY_INDEX
);
2662 else if (EQ (keyword
, QCheight
))
2664 Lisp_Object new_height
=
2665 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
2667 if (! NILP (new_height
))
2669 to
[LFACE_HEIGHT_INDEX
] = new_height
;
2670 font_clear_prop (to
, FONT_SIZE_INDEX
);
2675 else if (EQ (keyword
, QCweight
))
2677 if (SYMBOLP (value
) && FONT_WEIGHT_NAME_NUMERIC (value
) >= 0)
2679 to
[LFACE_WEIGHT_INDEX
] = value
;
2680 font_clear_prop (to
, FONT_WEIGHT_INDEX
);
2685 else if (EQ (keyword
, QCslant
))
2687 if (SYMBOLP (value
) && FONT_SLANT_NAME_NUMERIC (value
) >= 0)
2689 to
[LFACE_SLANT_INDEX
] = value
;
2690 font_clear_prop (to
, FONT_SLANT_INDEX
);
2695 else if (EQ (keyword
, QCunderline
))
2700 to
[LFACE_UNDERLINE_INDEX
] = value
;
2704 else if (EQ (keyword
, QCoverline
))
2709 to
[LFACE_OVERLINE_INDEX
] = value
;
2713 else if (EQ (keyword
, QCstrike_through
))
2718 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
2722 else if (EQ (keyword
, QCbox
))
2725 value
= make_number (1);
2726 if (INTEGERP (value
)
2730 to
[LFACE_BOX_INDEX
] = value
;
2734 else if (EQ (keyword
, QCinverse_video
)
2735 || EQ (keyword
, QCreverse_video
))
2737 if (EQ (value
, Qt
) || NILP (value
))
2738 to
[LFACE_INVERSE_INDEX
] = value
;
2742 else if (EQ (keyword
, QCforeground
))
2744 if (STRINGP (value
))
2745 to
[LFACE_FOREGROUND_INDEX
] = value
;
2749 else if (EQ (keyword
, QCbackground
))
2751 if (STRINGP (value
))
2752 to
[LFACE_BACKGROUND_INDEX
] = value
;
2756 else if (EQ (keyword
, QCstipple
))
2758 #ifdef HAVE_X_WINDOWS
2759 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
2760 if (!NILP (pixmap_p
))
2761 to
[LFACE_STIPPLE_INDEX
] = value
;
2766 else if (EQ (keyword
, QCwidth
))
2768 if (SYMBOLP (value
) && FONT_WIDTH_NAME_NUMERIC (value
) >= 0)
2770 to
[LFACE_SWIDTH_INDEX
] = value
;
2771 font_clear_prop (to
, FONT_WIDTH_INDEX
);
2776 else if (EQ (keyword
, QCinherit
))
2778 /* This is not really very useful; it's just like a
2779 normal face reference. */
2780 if (! merge_face_ref (f
, value
, to
,
2781 err_msgs
, named_merge_points
))
2789 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
2793 face_ref
= XCDR (XCDR (face_ref
));
2798 /* This is a list of face refs. Those at the beginning of the
2799 list take precedence over what follows, so we have to merge
2800 from the end backwards. */
2801 Lisp_Object next
= XCDR (face_ref
);
2804 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
2806 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
2812 /* FACE_REF ought to be a face name. */
2813 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
2814 if (!ok
&& err_msgs
)
2815 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
2822 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
2823 Sinternal_make_lisp_face
, 1, 2, 0,
2824 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
2825 If FACE was not known as a face before, create a new one.
2826 If optional argument FRAME is specified, make a frame-local face
2827 for that frame. Otherwise operate on the global face definition.
2828 Value is a vector of face attributes. */)
2830 Lisp_Object face
, frame
;
2832 Lisp_Object global_lface
, lface
;
2836 CHECK_SYMBOL (face
);
2837 global_lface
= lface_from_face_name (NULL
, face
, 0);
2841 CHECK_LIVE_FRAME (frame
);
2843 lface
= lface_from_face_name (f
, face
, 0);
2846 f
= NULL
, lface
= Qnil
;
2848 /* Add a global definition if there is none. */
2849 if (NILP (global_lface
))
2851 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2853 ASET (global_lface
, 0, Qface
);
2854 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
2855 Vface_new_frame_defaults
);
2857 /* Assign the new Lisp face a unique ID. The mapping from Lisp
2858 face id to Lisp face is given by the vector lface_id_to_name.
2859 The mapping from Lisp face to Lisp face id is given by the
2860 property `face' of the Lisp face name. */
2861 if (next_lface_id
== lface_id_to_name_size
)
2863 int new_size
= max (50, 2 * lface_id_to_name_size
);
2864 int sz
= new_size
* sizeof *lface_id_to_name
;
2865 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
2866 lface_id_to_name_size
= new_size
;
2869 lface_id_to_name
[next_lface_id
] = face
;
2870 Fput (face
, Qface
, make_number (next_lface_id
));
2874 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2875 ASET (global_lface
, i
, Qunspecified
);
2877 /* Add a frame-local definition. */
2882 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
2884 ASET (lface
, 0, Qface
);
2885 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
2888 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2889 ASET (lface
, i
, Qunspecified
);
2892 lface
= global_lface
;
2894 /* Changing a named face means that all realized faces depending on
2895 that face are invalid. Since we cannot tell which realized faces
2896 depend on the face, make sure they are all removed. This is done
2897 by incrementing face_change_count. The next call to
2898 init_iterator will then free realized faces. */
2899 if (NILP (Fget (face
, Qface_no_inherit
)))
2901 ++face_change_count
;
2902 ++windows_or_buffers_changed
;
2905 xassert (LFACEP (lface
));
2906 check_lface (lface
);
2911 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
2912 Sinternal_lisp_face_p
, 1, 2, 0,
2913 doc
: /* Return non-nil if FACE names a face.
2914 If optional second argument FRAME is non-nil, check for the
2915 existence of a frame-local face with name FACE on that frame.
2916 Otherwise check for the existence of a global face. */)
2918 Lisp_Object face
, frame
;
2922 face
= resolve_face_name (face
, 1);
2926 CHECK_LIVE_FRAME (frame
);
2927 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
2930 lface
= lface_from_face_name (NULL
, face
, 0);
2936 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
2937 Sinternal_copy_lisp_face
, 4, 4, 0,
2938 doc
: /* Copy face FROM to TO.
2939 If FRAME is t, copy the global face definition of FROM.
2940 Otherwise, copy the frame-local definition of FROM on FRAME.
2941 If NEW-FRAME is a frame, copy that data into the frame-local
2942 definition of TO on NEW-FRAME. If NEW-FRAME is nil,
2943 FRAME controls where the data is copied to.
2945 The value is TO. */)
2946 (from
, to
, frame
, new_frame
)
2947 Lisp_Object from
, to
, frame
, new_frame
;
2949 Lisp_Object lface
, copy
;
2951 CHECK_SYMBOL (from
);
2956 /* Copy global definition of FROM. We don't make copies of
2957 strings etc. because 20.2 didn't do it either. */
2958 lface
= lface_from_face_name (NULL
, from
, 1);
2959 copy
= Finternal_make_lisp_face (to
, Qnil
);
2963 /* Copy frame-local definition of FROM. */
2964 if (NILP (new_frame
))
2966 CHECK_LIVE_FRAME (frame
);
2967 CHECK_LIVE_FRAME (new_frame
);
2968 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
2969 copy
= Finternal_make_lisp_face (to
, new_frame
);
2972 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
2973 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
2975 /* Changing a named face means that all realized faces depending on
2976 that face are invalid. Since we cannot tell which realized faces
2977 depend on the face, make sure they are all removed. This is done
2978 by incrementing face_change_count. The next call to
2979 init_iterator will then free realized faces. */
2980 if (NILP (Fget (to
, Qface_no_inherit
)))
2982 ++face_change_count
;
2983 ++windows_or_buffers_changed
;
2990 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
2991 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
2992 doc
: /* Set attribute ATTR of FACE to VALUE.
2993 FRAME being a frame means change the face on that frame.
2994 FRAME nil means change the face of the selected frame.
2995 FRAME t means change the default for new frames.
2996 FRAME 0 means change the face on all frames, and change the default
2998 (face
, attr
, value
, frame
)
2999 Lisp_Object face
, attr
, value
, frame
;
3002 Lisp_Object old_value
= Qnil
;
3003 /* Set one of enum font_property_index (> 0) if ATTR is one of
3004 font-related attributes other than QCfont and QCfontset. */
3005 enum font_property_index prop_index
= 0;
3007 CHECK_SYMBOL (face
);
3008 CHECK_SYMBOL (attr
);
3010 face
= resolve_face_name (face
, 1);
3012 /* If FRAME is 0, change face on all frames, and change the
3013 default for new frames. */
3014 if (INTEGERP (frame
) && XINT (frame
) == 0)
3017 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3018 FOR_EACH_FRAME (tail
, frame
)
3019 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3023 /* Set lface to the Lisp attribute vector of FACE. */
3026 lface
= lface_from_face_name (NULL
, face
, 1);
3028 /* When updating face-new-frame-defaults, we put :ignore-defface
3029 where the caller wants `unspecified'. This forces the frame
3030 defaults to ignore the defface value. Otherwise, the defface
3031 will take effect, which is generally not what is intended.
3032 The value of that attribute will be inherited from some other
3033 face during face merging. See internal_merge_in_global_face. */
3034 if (UNSPECIFIEDP (value
))
3035 value
= Qignore_defface
;
3040 frame
= selected_frame
;
3042 CHECK_LIVE_FRAME (frame
);
3043 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3045 /* If a frame-local face doesn't exist yet, create one. */
3047 lface
= Finternal_make_lisp_face (face
, frame
);
3050 if (EQ (attr
, QCfamily
))
3052 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3054 CHECK_STRING (value
);
3055 if (SCHARS (value
) == 0)
3056 signal_error ("Invalid face family", value
);
3058 old_value
= LFACE_FAMILY (lface
);
3059 LFACE_FAMILY (lface
) = value
;
3060 prop_index
= FONT_FAMILY_INDEX
;
3062 else if (EQ (attr
, QCfoundry
))
3064 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3066 CHECK_STRING (value
);
3067 if (SCHARS (value
) == 0)
3068 signal_error ("Invalid face foundry", value
);
3070 old_value
= LFACE_FOUNDRY (lface
);
3071 LFACE_FOUNDRY (lface
) = value
;
3072 prop_index
= FONT_FOUNDRY_INDEX
;
3074 else if (EQ (attr
, QCheight
))
3076 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3080 test
= (EQ (face
, Qdefault
)
3082 /* The default face must have an absolute size,
3083 otherwise, we do a test merge with a random
3084 height to see if VALUE's ok. */
3085 : merge_face_heights (value
, make_number (10), Qnil
));
3087 if (!INTEGERP (test
) || XINT (test
) <= 0)
3088 signal_error ("Invalid face height", value
);
3091 old_value
= LFACE_HEIGHT (lface
);
3092 LFACE_HEIGHT (lface
) = value
;
3093 prop_index
= FONT_SIZE_INDEX
;
3095 else if (EQ (attr
, QCweight
))
3097 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3099 CHECK_SYMBOL (value
);
3100 if (FONT_WEIGHT_NAME_NUMERIC (value
) < 0)
3101 signal_error ("Invalid face weight", value
);
3103 old_value
= LFACE_WEIGHT (lface
);
3104 LFACE_WEIGHT (lface
) = value
;
3105 prop_index
= FONT_WEIGHT_INDEX
;
3107 else if (EQ (attr
, QCslant
))
3109 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3111 CHECK_SYMBOL (value
);
3112 if (FONT_SLANT_NAME_NUMERIC (value
) < 0)
3113 signal_error ("Invalid face slant", value
);
3115 old_value
= LFACE_SLANT (lface
);
3116 LFACE_SLANT (lface
) = value
;
3117 prop_index
= FONT_SLANT_INDEX
;
3119 else if (EQ (attr
, QCunderline
))
3121 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3122 if ((SYMBOLP (value
)
3124 && !EQ (value
, Qnil
))
3125 /* Underline color. */
3127 && SCHARS (value
) == 0))
3128 signal_error ("Invalid face underline", value
);
3130 old_value
= LFACE_UNDERLINE (lface
);
3131 LFACE_UNDERLINE (lface
) = value
;
3133 else if (EQ (attr
, QCoverline
))
3135 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3136 if ((SYMBOLP (value
)
3138 && !EQ (value
, Qnil
))
3139 /* Overline color. */
3141 && SCHARS (value
) == 0))
3142 signal_error ("Invalid face overline", value
);
3144 old_value
= LFACE_OVERLINE (lface
);
3145 LFACE_OVERLINE (lface
) = value
;
3147 else if (EQ (attr
, QCstrike_through
))
3149 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3150 if ((SYMBOLP (value
)
3152 && !EQ (value
, Qnil
))
3153 /* Strike-through color. */
3155 && SCHARS (value
) == 0))
3156 signal_error ("Invalid face strike-through", value
);
3158 old_value
= LFACE_STRIKE_THROUGH (lface
);
3159 LFACE_STRIKE_THROUGH (lface
) = value
;
3161 else if (EQ (attr
, QCbox
))
3165 /* Allow t meaning a simple box of width 1 in foreground color
3168 value
= make_number (1);
3170 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
3172 else if (NILP (value
))
3174 else if (INTEGERP (value
))
3175 valid_p
= XINT (value
) != 0;
3176 else if (STRINGP (value
))
3177 valid_p
= SCHARS (value
) > 0;
3178 else if (CONSP (value
))
3194 if (EQ (k
, QCline_width
))
3196 if (!INTEGERP (v
) || XINT (v
) == 0)
3199 else if (EQ (k
, QCcolor
))
3201 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
3204 else if (EQ (k
, QCstyle
))
3206 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3213 valid_p
= NILP (tem
);
3219 signal_error ("Invalid face box", value
);
3221 old_value
= LFACE_BOX (lface
);
3222 LFACE_BOX (lface
) = value
;
3224 else if (EQ (attr
, QCinverse_video
)
3225 || EQ (attr
, QCreverse_video
))
3227 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3229 CHECK_SYMBOL (value
);
3230 if (!EQ (value
, Qt
) && !NILP (value
))
3231 signal_error ("Invalid inverse-video face attribute value", value
);
3233 old_value
= LFACE_INVERSE (lface
);
3234 LFACE_INVERSE (lface
) = value
;
3236 else if (EQ (attr
, QCforeground
))
3238 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3240 /* Don't check for valid color names here because it depends
3241 on the frame (display) whether the color will be valid
3242 when the face is realized. */
3243 CHECK_STRING (value
);
3244 if (SCHARS (value
) == 0)
3245 signal_error ("Empty foreground color value", value
);
3247 old_value
= LFACE_FOREGROUND (lface
);
3248 LFACE_FOREGROUND (lface
) = value
;
3250 else if (EQ (attr
, QCbackground
))
3252 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3254 /* Don't check for valid color names here because it depends
3255 on the frame (display) whether the color will be valid
3256 when the face is realized. */
3257 CHECK_STRING (value
);
3258 if (SCHARS (value
) == 0)
3259 signal_error ("Empty background color value", value
);
3261 old_value
= LFACE_BACKGROUND (lface
);
3262 LFACE_BACKGROUND (lface
) = value
;
3264 else if (EQ (attr
, QCstipple
))
3266 #ifdef HAVE_X_WINDOWS
3267 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3269 && NILP (Fbitmap_spec_p (value
)))
3270 signal_error ("Invalid stipple attribute", value
);
3271 old_value
= LFACE_STIPPLE (lface
);
3272 LFACE_STIPPLE (lface
) = value
;
3273 #endif /* HAVE_X_WINDOWS */
3275 else if (EQ (attr
, QCwidth
))
3277 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3279 CHECK_SYMBOL (value
);
3280 if (FONT_WIDTH_NAME_NUMERIC (value
) < 0)
3281 signal_error ("Invalid face width", value
);
3283 old_value
= LFACE_SWIDTH (lface
);
3284 LFACE_SWIDTH (lface
) = value
;
3285 prop_index
= FONT_WIDTH_INDEX
;
3287 else if (EQ (attr
, QCfont
))
3289 #ifdef HAVE_WINDOW_SYSTEM
3290 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3292 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
3296 old_value
= LFACE_FONT (lface
);
3297 if (! FONTP (value
))
3299 if (STRINGP (value
))
3301 int fontset
= fs_query_fontset (value
, 0);
3304 value
= fontset_ascii (fontset
);
3305 value
= font_spec_from_name (value
);
3308 signal_error ("Invalid font or font-spec", value
);
3311 f
= XFRAME (selected_frame
);
3314 if (! FONT_OBJECT_P (value
))
3316 Lisp_Object
*attrs
= XVECTOR (lface
)->contents
;
3317 Lisp_Object font_object
;
3319 font_object
= font_load_for_lface (f
, attrs
, value
);
3320 if (NILP (font_object
))
3321 signal_error ("Font not available", value
);
3322 value
= font_object
;
3324 set_lface_from_font (f
, lface
, value
, 1);
3327 LFACE_FONT (lface
) = value
;
3329 #endif /* HAVE_WINDOW_SYSTEM */
3331 else if (EQ (attr
, QCfontset
))
3333 #ifdef HAVE_WINDOW_SYSTEM
3334 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
3338 old_value
= LFACE_FONTSET (lface
);
3339 tmp
= Fquery_fontset (value
, Qnil
);
3341 signal_error ("Invalid fontset name", value
);
3342 LFACE_FONTSET (lface
) = value
= tmp
;
3344 #endif /* HAVE_WINDOW_SYSTEM */
3346 else if (EQ (attr
, QCinherit
))
3349 if (SYMBOLP (value
))
3352 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3353 if (!SYMBOLP (XCAR (tail
)))
3356 LFACE_INHERIT (lface
) = value
;
3358 signal_error ("Invalid face inheritance", value
);
3360 else if (EQ (attr
, QCbold
))
3362 old_value
= LFACE_WEIGHT (lface
);
3363 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3364 prop_index
= FONT_WEIGHT_INDEX
;
3366 else if (EQ (attr
, QCitalic
))
3369 old_value
= LFACE_SLANT (lface
);
3370 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3371 prop_index
= FONT_SLANT_INDEX
;
3374 signal_error ("Invalid face attribute name", attr
);
3377 /* If a font-related attribute other than QCfont and QCfontset is
3378 specified, and if the original QCfont attribute has a font
3379 (font-spec or font-object), set the corresponding property in
3380 the font to nil so that the font selector doesn't think that
3381 the attribute is mandatory. */
3382 font_clear_prop (XVECTOR (lface
)->contents
, prop_index
);
3384 /* Changing a named face means that all realized faces depending on
3385 that face are invalid. Since we cannot tell which realized faces
3386 depend on the face, make sure they are all removed. This is done
3387 by incrementing face_change_count. The next call to
3388 init_iterator will then free realized faces. */
3390 && NILP (Fget (face
, Qface_no_inherit
))
3391 && NILP (Fequal (old_value
, value
)))
3393 ++face_change_count
;
3394 ++windows_or_buffers_changed
;
3397 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
3398 && NILP (Fequal (old_value
, value
)))
3404 if (EQ (face
, Qdefault
))
3406 #ifdef HAVE_WINDOW_SYSTEM
3407 /* Changed font-related attributes of the `default' face are
3408 reflected in changed `font' frame parameters. */
3410 && (prop_index
|| EQ (attr
, QCfont
))
3411 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3412 set_font_frame_param (frame
, lface
);
3414 #endif /* HAVE_WINDOW_SYSTEM */
3416 if (EQ (attr
, QCforeground
))
3417 param
= Qforeground_color
;
3418 else if (EQ (attr
, QCbackground
))
3419 param
= Qbackground_color
;
3421 #ifdef HAVE_WINDOW_SYSTEM
3423 else if (EQ (face
, Qscroll_bar
))
3425 /* Changing the colors of `scroll-bar' sets frame parameters
3426 `scroll-bar-foreground' and `scroll-bar-background'. */
3427 if (EQ (attr
, QCforeground
))
3428 param
= Qscroll_bar_foreground
;
3429 else if (EQ (attr
, QCbackground
))
3430 param
= Qscroll_bar_background
;
3432 #endif /* not WINDOWSNT */
3433 else if (EQ (face
, Qborder
))
3435 /* Changing background color of `border' sets frame parameter
3437 if (EQ (attr
, QCbackground
))
3438 param
= Qborder_color
;
3440 else if (EQ (face
, Qcursor
))
3442 /* Changing background color of `cursor' sets frame parameter
3444 if (EQ (attr
, QCbackground
))
3445 param
= Qcursor_color
;
3447 else if (EQ (face
, Qmouse
))
3449 /* Changing background color of `mouse' sets frame parameter
3451 if (EQ (attr
, QCbackground
))
3452 param
= Qmouse_color
;
3454 #endif /* HAVE_WINDOW_SYSTEM */
3455 else if (EQ (face
, Qmenu
))
3457 /* Indicate that we have to update the menu bar when
3458 realizing faces on FRAME. FRAME t change the
3459 default for new frames. We do this by setting
3460 setting the flag in new face caches */
3463 struct frame
*f
= XFRAME (frame
);
3464 if (FRAME_FACE_CACHE (f
) == NULL
)
3465 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
3466 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
3469 menu_face_changed_default
= 1;
3475 /* Update `default-frame-alist', which is used for new frames. */
3477 store_in_alist (&Vdefault_frame_alist
, param
, value
);
3480 /* Update the current frame's parameters. */
3483 cons
= XCAR (Vparam_value_alist
);
3484 XSETCAR (cons
, param
);
3485 XSETCDR (cons
, value
);
3486 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
3495 #ifdef HAVE_WINDOW_SYSTEM
3497 /* Set the `font' frame parameter of FRAME determined from the
3498 font-object set in `default' face attributes LFACE. */
3501 set_font_frame_param (frame
, lface
)
3502 Lisp_Object frame
, lface
;
3504 struct frame
*f
= XFRAME (frame
);
3506 if (FRAME_WINDOW_P (f
))
3508 Lisp_Object font
= LFACE_FONT (lface
);
3510 if (FONT_SPEC_P (font
))
3512 font
= font_load_for_lface (f
, XVECTOR (lface
)->contents
, font
);
3515 LFACE_FONT (lface
) = font
;
3517 f
->default_face_done_p
= 0;
3518 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font
), Qnil
));
3523 /* Update the corresponding face when frame parameter PARAM on frame F
3524 has been assigned the value NEW_VALUE. */
3527 update_face_from_frame_parameter (f
, param
, new_value
)
3529 Lisp_Object param
, new_value
;
3531 Lisp_Object face
= Qnil
;
3534 /* If there are no faces yet, give up. This is the case when called
3535 from Fx_create_frame, and we do the necessary things later in
3536 face-set-after-frame-defaults. */
3537 if (NILP (f
->face_alist
))
3540 if (EQ (param
, Qforeground_color
))
3543 lface
= lface_from_face_name (f
, face
, 1);
3544 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3545 ? new_value
: Qunspecified
);
3546 realize_basic_faces (f
);
3548 else if (EQ (param
, Qbackground_color
))
3552 /* Changing the background color might change the background
3553 mode, so that we have to load new defface specs.
3554 Call frame-update-face-colors to do that. */
3555 XSETFRAME (frame
, f
);
3556 call1 (Qframe_set_background_mode
, frame
);
3559 lface
= lface_from_face_name (f
, face
, 1);
3560 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3561 ? new_value
: Qunspecified
);
3562 realize_basic_faces (f
);
3564 else if (EQ (param
, Qborder_color
))
3567 lface
= lface_from_face_name (f
, face
, 1);
3568 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3569 ? new_value
: Qunspecified
);
3571 else if (EQ (param
, Qcursor_color
))
3574 lface
= lface_from_face_name (f
, face
, 1);
3575 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3576 ? new_value
: Qunspecified
);
3578 else if (EQ (param
, Qmouse_color
))
3581 lface
= lface_from_face_name (f
, face
, 1);
3582 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3583 ? new_value
: Qunspecified
);
3586 /* Changing a named face means that all realized faces depending on
3587 that face are invalid. Since we cannot tell which realized faces
3588 depend on the face, make sure they are all removed. This is done
3589 by incrementing face_change_count. The next call to
3590 init_iterator will then free realized faces. */
3592 && NILP (Fget (face
, Qface_no_inherit
)))
3594 ++face_change_count
;
3595 ++windows_or_buffers_changed
;
3600 /* Get the value of X resource RESOURCE, class CLASS for the display
3601 of frame FRAME. This is here because ordinary `x-get-resource'
3602 doesn't take a frame argument. */
3604 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3605 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
3606 (resource
, class, frame
)
3607 Lisp_Object resource
, class, frame
;
3609 Lisp_Object value
= Qnil
;
3610 CHECK_STRING (resource
);
3611 CHECK_STRING (class);
3612 CHECK_LIVE_FRAME (frame
);
3614 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3615 resource
, class, Qnil
, Qnil
);
3621 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3622 If VALUE is "on" or "true", return t. If VALUE is "off" or
3623 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3624 error; if SIGNAL_P is zero, return 0. */
3627 face_boolean_x_resource_value (value
, signal_p
)
3631 Lisp_Object result
= make_number (0);
3633 xassert (STRINGP (value
));
3635 if (xstrcasecmp (SDATA (value
), "on") == 0
3636 || xstrcasecmp (SDATA (value
), "true") == 0)
3638 else if (xstrcasecmp (SDATA (value
), "off") == 0
3639 || xstrcasecmp (SDATA (value
), "false") == 0)
3641 else if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3642 result
= Qunspecified
;
3644 signal_error ("Invalid face attribute value from X resource", value
);
3650 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3651 Finternal_set_lisp_face_attribute_from_resource
,
3652 Sinternal_set_lisp_face_attribute_from_resource
,
3653 3, 4, 0, doc
: /* */)
3654 (face
, attr
, value
, frame
)
3655 Lisp_Object face
, attr
, value
, frame
;
3657 CHECK_SYMBOL (face
);
3658 CHECK_SYMBOL (attr
);
3659 CHECK_STRING (value
);
3661 if (xstrcasecmp (SDATA (value
), "unspecified") == 0)
3662 value
= Qunspecified
;
3663 else if (EQ (attr
, QCheight
))
3665 value
= Fstring_to_number (value
, make_number (10));
3666 if (XINT (value
) <= 0)
3667 signal_error ("Invalid face height from X resource", value
);
3669 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3670 value
= face_boolean_x_resource_value (value
, 1);
3671 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3672 value
= intern (SDATA (value
));
3673 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3674 value
= face_boolean_x_resource_value (value
, 1);
3675 else if (EQ (attr
, QCunderline
)
3676 || EQ (attr
, QCoverline
)
3677 || EQ (attr
, QCstrike_through
))
3679 Lisp_Object boolean_value
;
3681 /* If the result of face_boolean_x_resource_value is t or nil,
3682 VALUE does NOT specify a color. */
3683 boolean_value
= face_boolean_x_resource_value (value
, 0);
3684 if (SYMBOLP (boolean_value
))
3685 value
= boolean_value
;
3687 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
3688 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
3690 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3693 #endif /* HAVE_WINDOW_SYSTEM */
3696 /***********************************************************************
3698 ***********************************************************************/
3700 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
3702 /* Make menus on frame F appear as specified by the `menu' face. */
3705 x_update_menu_appearance (f
)
3708 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
3712 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
3716 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
3717 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3718 const char *myname
= SDATA (Vx_resource_name
);
3721 const char *popup_path
= "popup_menu";
3723 const char *popup_path
= "menu.popup";
3726 if (STRINGP (LFACE_FOREGROUND (lface
)))
3728 sprintf (line
, "%s.%s*foreground: %s",
3730 SDATA (LFACE_FOREGROUND (lface
)));
3731 XrmPutLineResource (&rdb
, line
);
3732 sprintf (line
, "%s.pane.menubar*foreground: %s",
3733 myname
, SDATA (LFACE_FOREGROUND (lface
)));
3734 XrmPutLineResource (&rdb
, line
);
3738 if (STRINGP (LFACE_BACKGROUND (lface
)))
3740 sprintf (line
, "%s.%s*background: %s",
3742 SDATA (LFACE_BACKGROUND (lface
)));
3743 XrmPutLineResource (&rdb
, line
);
3744 sprintf (line
, "%s.pane.menubar*background: %s",
3745 myname
, SDATA (LFACE_BACKGROUND (lface
)));
3746 XrmPutLineResource (&rdb
, line
);
3751 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3752 || !UNSPECIFIEDP (LFACE_FOUNDRY (lface
))
3753 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3754 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3755 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3756 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3758 Lisp_Object xlfd
= Ffont_xlfd_name (LFACE_FONT (lface
), Qnil
);
3760 const char *suffix
= "List";
3763 #if defined HAVE_X_I18N
3765 const char *suffix
= "Set";
3767 const char *suffix
= "";
3774 #if defined HAVE_X_I18N
3775 extern char *xic_create_fontsetname
3776 P_ ((char *base_fontname
, Bool motif
));
3777 char *fontsetname
= xic_create_fontsetname (SDATA (xlfd
), motif
);
3779 char *fontsetname
= (char *) SDATA (xlfd
);
3781 sprintf (line
, "%s.pane.menubar*font%s: %s",
3782 myname
, suffix
, fontsetname
);
3783 XrmPutLineResource (&rdb
, line
);
3784 sprintf (line
, "%s.%s*font%s: %s",
3785 myname
, popup_path
, suffix
, fontsetname
);
3786 XrmPutLineResource (&rdb
, line
);
3788 if (fontsetname
!= (char *) SDATA (xlfd
))
3789 xfree (fontsetname
);
3793 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
3794 free_frame_menubar (f
);
3798 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
3801 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
3802 Sface_attribute_relative_p
,
3804 doc
: /* Check whether a face attribute value is relative.
3805 Specifically, this function returns t if the attribute ATTRIBUTE
3806 with the value VALUE is relative.
3808 A relative value is one that doesn't entirely override whatever is
3809 inherited from another face. For most possible attributes,
3810 the only relative value that users see is `unspecified'.
3811 However, for :height, floating point values are also relative. */)
3813 Lisp_Object attribute
, value
;
3815 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
3817 else if (EQ (attribute
, QCheight
))
3818 return INTEGERP (value
) ? Qnil
: Qt
;
3823 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
3825 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
3826 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
3827 the result will be absolute, otherwise it will be relative. */)
3828 (attribute
, value1
, value2
)
3829 Lisp_Object attribute
, value1
, value2
;
3831 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
3833 else if (EQ (attribute
, QCheight
))
3834 return merge_face_heights (value1
, value2
, value1
);
3840 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
3841 Sinternal_get_lisp_face_attribute
,
3843 doc
: /* Return face attribute KEYWORD of face SYMBOL.
3844 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
3845 face attribute name, signal an error.
3846 If the optional argument FRAME is given, report on face SYMBOL in that
3847 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
3848 frames). If FRAME is omitted or nil, use the selected frame. */)
3849 (symbol
, keyword
, frame
)
3850 Lisp_Object symbol
, keyword
, frame
;
3852 Lisp_Object lface
, value
= Qnil
;
3854 CHECK_SYMBOL (symbol
);
3855 CHECK_SYMBOL (keyword
);
3858 lface
= lface_from_face_name (NULL
, symbol
, 1);
3862 frame
= selected_frame
;
3863 CHECK_LIVE_FRAME (frame
);
3864 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
3867 if (EQ (keyword
, QCfamily
))
3868 value
= LFACE_FAMILY (lface
);
3869 else if (EQ (keyword
, QCfoundry
))
3870 value
= LFACE_FOUNDRY (lface
);
3871 else if (EQ (keyword
, QCheight
))
3872 value
= LFACE_HEIGHT (lface
);
3873 else if (EQ (keyword
, QCweight
))
3874 value
= LFACE_WEIGHT (lface
);
3875 else if (EQ (keyword
, QCslant
))
3876 value
= LFACE_SLANT (lface
);
3877 else if (EQ (keyword
, QCunderline
))
3878 value
= LFACE_UNDERLINE (lface
);
3879 else if (EQ (keyword
, QCoverline
))
3880 value
= LFACE_OVERLINE (lface
);
3881 else if (EQ (keyword
, QCstrike_through
))
3882 value
= LFACE_STRIKE_THROUGH (lface
);
3883 else if (EQ (keyword
, QCbox
))
3884 value
= LFACE_BOX (lface
);
3885 else if (EQ (keyword
, QCinverse_video
)
3886 || EQ (keyword
, QCreverse_video
))
3887 value
= LFACE_INVERSE (lface
);
3888 else if (EQ (keyword
, QCforeground
))
3889 value
= LFACE_FOREGROUND (lface
);
3890 else if (EQ (keyword
, QCbackground
))
3891 value
= LFACE_BACKGROUND (lface
);
3892 else if (EQ (keyword
, QCstipple
))
3893 value
= LFACE_STIPPLE (lface
);
3894 else if (EQ (keyword
, QCwidth
))
3895 value
= LFACE_SWIDTH (lface
);
3896 else if (EQ (keyword
, QCinherit
))
3897 value
= LFACE_INHERIT (lface
);
3898 else if (EQ (keyword
, QCfont
))
3899 value
= LFACE_FONT (lface
);
3900 else if (EQ (keyword
, QCfontset
))
3901 value
= LFACE_FONTSET (lface
);
3903 signal_error ("Invalid face attribute name", keyword
);
3905 if (IGNORE_DEFFACE_P (value
))
3906 return Qunspecified
;
3912 DEFUN ("internal-lisp-face-attribute-values",
3913 Finternal_lisp_face_attribute_values
,
3914 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
3915 doc
: /* Return a list of valid discrete values for face attribute ATTR.
3916 Value is nil if ATTR doesn't have a discrete set of valid values. */)
3920 Lisp_Object result
= Qnil
;
3922 CHECK_SYMBOL (attr
);
3924 if (EQ (attr
, QCunderline
))
3925 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3926 else if (EQ (attr
, QCoverline
))
3927 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3928 else if (EQ (attr
, QCstrike_through
))
3929 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3930 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
3931 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
3937 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
3938 Sinternal_merge_in_global_face
, 2, 2, 0,
3939 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
3940 Default face attributes override any local face attributes. */)
3942 Lisp_Object face
, frame
;
3945 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
3947 CHECK_LIVE_FRAME (frame
);
3948 global_lface
= lface_from_face_name (NULL
, face
, 1);
3949 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3950 if (NILP (local_lface
))
3951 local_lface
= Finternal_make_lisp_face (face
, frame
);
3953 /* Make every specified global attribute override the local one.
3954 BEWARE!! This is only used from `face-set-after-frame-default' where
3955 the local frame is defined from default specs in `face-defface-spec'
3956 and those should be overridden by global settings. Hence the strange
3957 "global before local" priority. */
3958 lvec
= XVECTOR (local_lface
)->contents
;
3959 gvec
= XVECTOR (global_lface
)->contents
;
3960 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3961 if (! UNSPECIFIEDP (gvec
[i
]))
3963 if (IGNORE_DEFFACE_P (gvec
[i
]))
3964 lvec
[i
] = Qunspecified
;
3973 /* The following function is implemented for compatibility with 20.2.
3974 The function is used in x-resolve-fonts when it is asked to
3975 return fonts with the same size as the font of a face. This is
3976 done in fontset.el. */
3978 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
3979 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
3980 The font name is, by default, for ASCII characters.
3981 If the optional argument FRAME is given, report on face FACE in that frame.
3982 If FRAME is t, report on the defaults for face FACE (for new frames).
3983 The font default for a face is either nil, or a list
3984 of the form (bold), (italic) or (bold italic).
3985 If FRAME is omitted or nil, use the selected frame. And, in this case,
3986 if the optional third argument CHARACTER is given,
3987 return the font name used for CHARACTER. */)
3988 (face
, frame
, character
)
3989 Lisp_Object face
, frame
, character
;
3993 Lisp_Object result
= Qnil
;
3994 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
3996 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3997 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
3998 result
= Fcons (Qbold
, result
);
4000 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4001 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4002 result
= Fcons (Qitalic
, result
);
4008 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4009 int face_id
= lookup_named_face (f
, face
, 1);
4010 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4014 #ifdef HAVE_WINDOW_SYSTEM
4015 if (FRAME_WINDOW_P (f
) && !NILP (character
))
4017 CHECK_CHARACTER (character
);
4018 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
4019 face
= FACE_FROM_ID (f
, face_id
);
4022 ? face
->font
->props
[FONT_NAME_INDEX
]
4024 #else /* !HAVE_WINDOW_SYSTEM */
4025 return build_string (FRAME_MSDOS_P (f
)
4027 : FRAME_W32_P (f
) ? "w32term"
4034 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4035 all attributes are `equal'. Tries to be fast because this function
4036 is called quite often. */
4039 face_attr_equal_p (v1
, v2
)
4042 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4043 and the other is specified. */
4044 if (XTYPE (v1
) != XTYPE (v2
))
4053 if (SBYTES (v1
) != SBYTES (v2
))
4056 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4063 return !NILP (Fequal (v1
, v2
));
4068 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4069 all attributes are `equal'. Tries to be fast because this function
4070 is called quite often. */
4073 lface_equal_p (v1
, v2
)
4074 Lisp_Object
*v1
, *v2
;
4078 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4079 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4085 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4086 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4087 doc
: /* True if FACE1 and FACE2 are equal.
4088 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
4089 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
4090 If FRAME is omitted or nil, use the selected frame. */)
4091 (face1
, face2
, frame
)
4092 Lisp_Object face1
, face2
, frame
;
4096 Lisp_Object lface1
, lface2
;
4101 /* Don't use check_x_frame here because this function is called
4102 before X frames exist. At that time, if FRAME is nil,
4103 selected_frame will be used which is the frame dumped with
4104 Emacs. That frame is not an X frame. */
4105 f
= frame_or_selected_frame (frame
, 2);
4107 lface1
= lface_from_face_name (f
, face1
, 1);
4108 lface2
= lface_from_face_name (f
, face2
, 1);
4109 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4110 XVECTOR (lface2
)->contents
);
4111 return equal_p
? Qt
: Qnil
;
4115 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4116 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4117 doc
: /* True if FACE has no attribute specified.
4118 If the optional argument FRAME is given, report on face FACE in that frame.
4119 If FRAME is t, report on the defaults for face FACE (for new frames).
4120 If FRAME is omitted or nil, use the selected frame. */)
4122 Lisp_Object face
, frame
;
4129 frame
= selected_frame
;
4130 CHECK_LIVE_FRAME (frame
);
4134 lface
= lface_from_face_name (NULL
, face
, 1);
4136 lface
= lface_from_face_name (f
, face
, 1);
4138 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4139 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4142 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4146 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4148 doc
: /* Return an alist of frame-local faces defined on FRAME.
4149 For internal use only. */)
4153 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4154 return f
->face_alist
;
4158 /* Return a hash code for Lisp string STRING with case ignored. Used
4159 below in computing a hash value for a Lisp face. */
4161 static INLINE
unsigned
4162 hash_string_case_insensitive (string
)
4165 const unsigned char *s
;
4167 xassert (STRINGP (string
));
4168 for (s
= SDATA (string
); *s
; ++s
)
4169 hash
= (hash
<< 1) ^ tolower (*s
);
4174 /* Return a hash code for face attribute vector V. */
4176 static INLINE
unsigned
4180 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4181 ^ hash_string_case_insensitive (v
[LFACE_FOUNDRY_INDEX
])
4182 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4183 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4184 ^ XHASH (v
[LFACE_WEIGHT_INDEX
])
4185 ^ XHASH (v
[LFACE_SLANT_INDEX
])
4186 ^ XHASH (v
[LFACE_SWIDTH_INDEX
])
4187 ^ XHASH (v
[LFACE_HEIGHT_INDEX
]));
4191 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4192 considering charsets/registries). They do if they specify the same
4193 family, point size, weight, width, slant, and font. Both
4194 LFACE1 and LFACE2 must be fully-specified. */
4197 lface_same_font_attributes_p (lface1
, lface2
)
4198 Lisp_Object
*lface1
, *lface2
;
4200 xassert (lface_fully_specified_p (lface1
)
4201 && lface_fully_specified_p (lface2
));
4202 return (xstrcasecmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
4203 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
4204 && xstrcasecmp (SDATA (lface1
[LFACE_FOUNDRY_INDEX
]),
4205 SDATA (lface2
[LFACE_FOUNDRY_INDEX
])) == 0
4206 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4207 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4208 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4209 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4210 && EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4211 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
4212 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
4213 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
4214 && ! xstrcasecmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
4215 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
4221 /***********************************************************************
4223 ***********************************************************************/
4225 /* Allocate and return a new realized face for Lisp face attribute
4228 static struct face
*
4229 make_realized_face (attr
)
4232 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4233 bzero (face
, sizeof *face
);
4234 face
->ascii_face
= face
;
4235 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4240 /* Free realized face FACE, including its X resources. FACE may
4244 free_realized_face (f
, face
)
4250 #ifdef HAVE_WINDOW_SYSTEM
4251 if (FRAME_WINDOW_P (f
))
4253 /* Free fontset of FACE if it is ASCII face. */
4254 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4255 free_face_fontset (f
, face
);
4260 font_done_for_face (f
, face
);
4261 x_free_gc (f
, face
->gc
);
4266 free_face_colors (f
, face
);
4267 x_destroy_bitmap (f
, face
->stipple
);
4269 #endif /* HAVE_WINDOW_SYSTEM */
4276 /* Prepare face FACE for subsequent display on frame F. This
4277 allocated GCs if they haven't been allocated yet or have been freed
4278 by clearing the face cache. */
4281 prepare_face_for_display (f
, face
)
4285 #ifdef HAVE_WINDOW_SYSTEM
4286 xassert (FRAME_WINDOW_P (f
));
4291 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4293 xgcv
.foreground
= face
->foreground
;
4294 xgcv
.background
= face
->background
;
4295 #ifdef HAVE_X_WINDOWS
4296 xgcv
.graphics_exposures
= False
;
4300 #ifdef HAVE_X_WINDOWS
4303 xgcv
.fill_style
= FillOpaqueStippled
;
4304 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4305 mask
|= GCFillStyle
| GCStipple
;
4308 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4310 font_prepare_for_face (f
, face
);
4313 #endif /* HAVE_WINDOW_SYSTEM */
4317 /* Returns the `distance' between the colors X and Y. */
4320 color_distance (x
, y
)
4323 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
4324 Quoting from that paper:
4326 This formula has results that are very close to L*u*v* (with the
4327 modified lightness curve) and, more importantly, it is a more even
4328 algorithm: it does not have a range of colours where it suddenly
4329 gives far from optimal results.
4331 See <http://www.compuphase.com/cmetric.htm> for more info. */
4333 long r
= (x
->red
- y
->red
) >> 8;
4334 long g
= (x
->green
- y
->green
) >> 8;
4335 long b
= (x
->blue
- y
->blue
) >> 8;
4336 long r_mean
= (x
->red
+ y
->red
) >> 9;
4339 (((512 + r_mean
) * r
* r
) >> 8)
4341 + (((767 - r_mean
) * b
* b
) >> 8);
4345 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
4346 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
4347 COLOR1 and COLOR2 may be either strings containing the color name,
4348 or lists of the form (RED GREEN BLUE).
4349 If FRAME is unspecified or nil, the current frame is used. */)
4350 (color1
, color2
, frame
)
4351 Lisp_Object color1
, color2
, frame
;
4354 XColor cdef1
, cdef2
;
4357 frame
= selected_frame
;
4358 CHECK_LIVE_FRAME (frame
);
4361 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
4362 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
4363 signal_error ("Invalid color", color1
);
4364 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
4365 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
4366 signal_error ("Invalid color", color2
);
4368 return make_number (color_distance (&cdef1
, &cdef2
));
4372 /***********************************************************************
4374 ***********************************************************************/
4376 /* Return a new face cache for frame F. */
4378 static struct face_cache
*
4382 struct face_cache
*c
;
4385 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4386 bzero (c
, sizeof *c
);
4387 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4388 c
->buckets
= (struct face
**) xmalloc (size
);
4389 bzero (c
->buckets
, size
);
4391 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4393 c
->menu_face_changed_p
= menu_face_changed_default
;
4398 /* Clear out all graphics contexts for all realized faces, except for
4399 the basic faces. This should be done from time to time just to avoid
4400 keeping too many graphics contexts that are no longer needed. */
4404 struct face_cache
*c
;
4406 if (c
&& FRAME_WINDOW_P (c
->f
))
4408 #ifdef HAVE_WINDOW_SYSTEM
4410 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4412 struct face
*face
= c
->faces_by_id
[i
];
4413 if (face
&& face
->gc
)
4417 font_done_for_face (c
->f
, face
);
4418 x_free_gc (c
->f
, face
->gc
);
4423 #endif /* HAVE_WINDOW_SYSTEM */
4428 /* Free all realized faces in face cache C, including basic faces.
4429 C may be null. If faces are freed, make sure the frame's current
4430 matrix is marked invalid, so that a display caused by an expose
4431 event doesn't try to use faces we destroyed. */
4434 free_realized_faces (c
)
4435 struct face_cache
*c
;
4440 struct frame
*f
= c
->f
;
4442 /* We must block input here because we can't process X events
4443 safely while only some faces are freed, or when the frame's
4444 current matrix still references freed faces. */
4447 for (i
= 0; i
< c
->used
; ++i
)
4449 free_realized_face (f
, c
->faces_by_id
[i
]);
4450 c
->faces_by_id
[i
] = NULL
;
4454 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4455 bzero (c
->buckets
, size
);
4457 /* Must do a thorough redisplay the next time. Mark current
4458 matrices as invalid because they will reference faces freed
4459 above. This function is also called when a frame is
4460 destroyed. In this case, the root window of F is nil. */
4461 if (WINDOWP (f
->root_window
))
4463 clear_current_matrices (f
);
4464 ++windows_or_buffers_changed
;
4472 /* Free all realized faces that are using FONTSET on frame F. */
4475 free_realized_faces_for_fontset (f
, fontset
)
4479 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4483 /* We must block input here because we can't process X events safely
4484 while only some faces are freed, or when the frame's current
4485 matrix still references freed faces. */
4488 for (i
= 0; i
< cache
->used
; i
++)
4490 face
= cache
->faces_by_id
[i
];
4492 && face
->fontset
== fontset
)
4494 uncache_face (cache
, face
);
4495 free_realized_face (f
, face
);
4499 /* Must do a thorough redisplay the next time. Mark current
4500 matrices as invalid because they will reference faces freed
4501 above. This function is also called when a frame is destroyed.
4502 In this case, the root window of F is nil. */
4503 if (WINDOWP (f
->root_window
))
4505 clear_current_matrices (f
);
4506 ++windows_or_buffers_changed
;
4513 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4514 This is done after attributes of a named face have been changed,
4515 because we can't tell which realized faces depend on that face. */
4518 free_all_realized_faces (frame
)
4524 FOR_EACH_FRAME (rest
, frame
)
4525 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4528 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4532 /* Free face cache C and faces in it, including their X resources. */
4536 struct face_cache
*c
;
4540 free_realized_faces (c
);
4542 xfree (c
->faces_by_id
);
4548 /* Cache realized face FACE in face cache C. HASH is the hash value
4549 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
4550 FACE), insert the new face to the beginning of the collision list
4551 of the face hash table of C. Otherwise, add the new face to the
4552 end of the collision list. This way, lookup_face can quickly find
4553 that a requested face is not cached. */
4556 cache_face (c
, face
, hash
)
4557 struct face_cache
*c
;
4561 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4565 if (face
->ascii_face
!= face
)
4567 struct face
*last
= c
->buckets
[i
];
4578 c
->buckets
[i
] = face
;
4579 face
->prev
= face
->next
= NULL
;
4585 face
->next
= c
->buckets
[i
];
4587 face
->next
->prev
= face
;
4588 c
->buckets
[i
] = face
;
4591 /* Find a free slot in C->faces_by_id and use the index of the free
4592 slot as FACE->id. */
4593 for (i
= 0; i
< c
->used
; ++i
)
4594 if (c
->faces_by_id
[i
] == NULL
)
4598 /* Maybe enlarge C->faces_by_id. */
4601 if (c
->used
== c
->size
)
4604 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
4605 if (new_size
== c
->size
)
4606 abort (); /* Alternatives? ++kfs */
4607 sz
= new_size
* sizeof *c
->faces_by_id
;
4608 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4615 /* Check that FACE got a unique id. */
4620 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4621 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4627 #endif /* GLYPH_DEBUG */
4629 c
->faces_by_id
[i
] = face
;
4633 /* Remove face FACE from cache C. */
4636 uncache_face (c
, face
)
4637 struct face_cache
*c
;
4640 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4643 face
->prev
->next
= face
->next
;
4645 c
->buckets
[i
] = face
->next
;
4648 face
->next
->prev
= face
->prev
;
4650 c
->faces_by_id
[face
->id
] = NULL
;
4651 if (face
->id
== c
->used
)
4656 /* Look up a realized face with face attributes ATTR in the face cache
4657 of frame F. The face will be used to display ASCII characters.
4658 Value is the ID of the face found. If no suitable face is found,
4659 realize a new one. */
4662 lookup_face (f
, attr
)
4666 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4671 xassert (cache
!= NULL
);
4672 check_lface_attrs (attr
);
4674 /* Look up ATTR in the face cache. */
4675 hash
= lface_hash (attr
);
4676 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4678 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4680 if (face
->ascii_face
!= face
)
4682 /* There's no more ASCII face. */
4686 if (face
->hash
== hash
4687 && lface_equal_p (face
->lface
, attr
))
4691 /* If not found, realize a new face. */
4693 face
= realize_face (cache
, attr
, -1);
4696 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4697 #endif /* GLYPH_DEBUG */
4702 #ifdef HAVE_WINDOW_SYSTEM
4703 /* Look up a realized face that has the same attributes as BASE_FACE
4704 except for the font in the face cache of frame F. If FONT-OBJECT
4705 is not nil, it is an already opened font. If FONT-OBJECT is nil,
4706 the face has no font. Value is the ID of the face found. If no
4707 suitable face is found, realize a new one. */
4710 face_for_font (f
, font_object
, base_face
)
4712 Lisp_Object font_object
;
4713 struct face
*base_face
;
4715 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4720 xassert (cache
!= NULL
);
4721 base_face
= base_face
->ascii_face
;
4722 hash
= lface_hash (base_face
->lface
);
4723 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4725 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4727 if (face
->ascii_face
== face
)
4729 if (face
->ascii_face
== base_face
4730 && face
->font
== (NILP (font_object
) ? NULL
4731 : XFONT_OBJECT (font_object
))
4732 && lface_equal_p (face
->lface
, base_face
->lface
))
4736 /* If not found, realize a new face. */
4737 face
= realize_non_ascii_face (f
, font_object
, base_face
);
4740 #endif /* HAVE_WINDOW_SYSTEM */
4742 /* Return the face id of the realized face for named face SYMBOL on
4743 frame F suitable for displaying ASCII characters. Value is -1 if
4744 the face couldn't be determined, which might happen if the default
4745 face isn't realized and cannot be realized. */
4748 lookup_named_face (f
, symbol
, signal_p
)
4753 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4754 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4755 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4757 if (default_face
== NULL
)
4759 if (!realize_basic_faces (f
))
4761 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4762 if (default_face
== NULL
)
4763 abort (); /* realize_basic_faces must have set it up */
4766 if (! get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0))
4769 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4770 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4772 return lookup_face (f
, attrs
);
4776 /* Return the display face-id of the basic face who's canonical face-id
4777 is FACE_ID. The return value will usually simply be FACE_ID, unless that
4778 basic face has bee remapped via Vface_remapping_alist. This function is
4779 conservative: if something goes wrong, it will simply return FACE_ID
4780 rather than signal an error. */
4783 lookup_basic_face (f
, face_id
)
4787 Lisp_Object name
, mapping
;
4788 int remapped_face_id
;
4790 if (NILP (Vface_remapping_alist
))
4791 return face_id
; /* Nothing to do. */
4795 case DEFAULT_FACE_ID
: name
= Qdefault
; break;
4796 case MODE_LINE_FACE_ID
: name
= Qmode_line
; break;
4797 case MODE_LINE_INACTIVE_FACE_ID
: name
= Qmode_line_inactive
; break;
4798 case HEADER_LINE_FACE_ID
: name
= Qheader_line
; break;
4799 case TOOL_BAR_FACE_ID
: name
= Qtool_bar
; break;
4800 case FRINGE_FACE_ID
: name
= Qfringe
; break;
4801 case SCROLL_BAR_FACE_ID
: name
= Qscroll_bar
; break;
4802 case BORDER_FACE_ID
: name
= Qborder
; break;
4803 case CURSOR_FACE_ID
: name
= Qcursor
; break;
4804 case MOUSE_FACE_ID
: name
= Qmouse
; break;
4805 case MENU_FACE_ID
: name
= Qmenu
; break;
4808 abort (); /* the caller is supposed to pass us a basic face id */
4811 /* Do a quick scan through Vface_remapping_alist, and return immediately
4812 if there is no remapping for face NAME. This is just an optimization
4813 for the very common no-remapping case. */
4814 mapping
= assq_no_quit (name
, Vface_remapping_alist
);
4816 return face_id
; /* Give up. */
4818 /* If there is a remapping entry, lookup the face using NAME, which will
4819 handle the remapping too. */
4820 remapped_face_id
= lookup_named_face (f
, name
, 0);
4821 if (remapped_face_id
< 0)
4822 return face_id
; /* Give up. */
4824 return remapped_face_id
;
4828 /* Return the ID of the realized ASCII face of Lisp face with ID
4829 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4832 ascii_face_of_lisp_face (f
, lface_id
)
4838 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4840 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4841 face_id
= lookup_named_face (f
, face_name
, 1);
4850 /* Return a face for charset ASCII that is like the face with id
4851 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4852 STEPS < 0 means larger. Value is the id of the face. */
4855 smaller_face (f
, face_id
, steps
)
4859 #ifdef HAVE_WINDOW_SYSTEM
4861 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4862 int pt
, last_pt
, last_height
;
4865 struct face
*new_face
;
4867 /* If not called for an X frame, just return the original face. */
4868 if (FRAME_TERMCAP_P (f
))
4871 /* Try in increments of 1/2 pt. */
4872 delta
= steps
< 0 ? 5 : -5;
4873 steps
= eabs (steps
);
4875 face
= FACE_FROM_ID (f
, face_id
);
4876 bcopy (face
->lface
, attrs
, sizeof attrs
);
4877 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4878 new_face_id
= face_id
;
4879 last_height
= FONT_HEIGHT (face
->font
);
4883 /* Give up if we cannot find a font within 10pt. */
4884 && eabs (last_pt
- pt
) < 100)
4886 /* Look up a face for a slightly smaller/larger font. */
4888 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4889 new_face_id
= lookup_face (f
, attrs
);
4890 new_face
= FACE_FROM_ID (f
, new_face_id
);
4892 /* If height changes, count that as one step. */
4893 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
4894 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
4897 last_height
= FONT_HEIGHT (new_face
->font
);
4904 #else /* not HAVE_WINDOW_SYSTEM */
4908 #endif /* not HAVE_WINDOW_SYSTEM */
4912 /* Return a face for charset ASCII that is like the face with id
4913 FACE_ID on frame F, but has height HEIGHT. */
4916 face_with_height (f
, face_id
, height
)
4921 #ifdef HAVE_WINDOW_SYSTEM
4923 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4925 if (FRAME_TERMCAP_P (f
)
4929 face
= FACE_FROM_ID (f
, face_id
);
4930 bcopy (face
->lface
, attrs
, sizeof attrs
);
4931 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4932 face_id
= lookup_face (f
, attrs
);
4933 #endif /* HAVE_WINDOW_SYSTEM */
4939 /* Return the face id of the realized face for named face SYMBOL on
4940 frame F suitable for displaying ASCII characters, and use
4941 attributes of the face FACE_ID for attributes that aren't
4942 completely specified by SYMBOL. This is like lookup_named_face,
4943 except that the default attributes come from FACE_ID, not from the
4944 default face. FACE_ID is assumed to be already realized. */
4947 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
4953 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4954 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4955 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4960 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
, 0);
4961 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4962 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
4963 return lookup_face (f
, attrs
);
4966 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
4967 Sface_attributes_as_vector
, 1, 1, 0,
4968 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
4973 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4975 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
4982 /***********************************************************************
4983 Face capability testing
4984 ***********************************************************************/
4987 /* If the distance (as returned by color_distance) between two colors is
4988 less than this, then they are considered the same, for determining
4989 whether a color is supported or not. The range of values is 0-65535. */
4991 #define TTY_SAME_COLOR_THRESHOLD 10000
4993 #ifdef HAVE_WINDOW_SYSTEM
4995 /* Return non-zero if all the face attributes in ATTRS are supported
4996 on the window-system frame F.
4998 The definition of `supported' is somewhat heuristic, but basically means
4999 that a face containing all the attributes in ATTRS, when merged with the
5000 default face for display, can be represented in a way that's
5002 \(1) different in appearance than the default face, and
5003 \(2) `close in spirit' to what the attributes specify, if not exact. */
5006 x_supports_face_attributes_p (f
, attrs
, def_face
)
5009 struct face
*def_face
;
5011 Lisp_Object
*def_attrs
= def_face
->lface
;
5013 /* Check that other specified attributes are different that the default
5015 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5016 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5017 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5018 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5019 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5020 def_attrs
[LFACE_INVERSE_INDEX
]))
5021 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5022 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5023 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5024 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5025 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5026 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5027 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5028 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5029 def_attrs
[LFACE_STIPPLE_INDEX
]))
5030 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5031 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5032 def_attrs
[LFACE_OVERLINE_INDEX
]))
5033 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5034 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5035 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5036 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5037 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5038 def_attrs
[LFACE_BOX_INDEX
])))
5041 /* Check font-related attributes, as those are the most commonly
5042 "unsupported" on a window-system (because of missing fonts). */
5043 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5044 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5045 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5046 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5047 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5048 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
]))
5052 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5055 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5057 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5059 face_id
= lookup_face (f
, merged_attrs
);
5060 face
= FACE_FROM_ID (f
, face_id
);
5063 error ("Cannot make face");
5065 /* If the font is the same, or no font is found, then not
5067 if (face
->font
== def_face
->font
5070 for (i
= FONT_TYPE_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
5071 if (! EQ (face
->font
->props
[i
], def_face
->font
->props
[i
]))
5075 if (i
< FONT_FOUNDRY_INDEX
|| i
> FONT_REGISTRY_INDEX
5076 || face
->font
->driver
->case_sensitive
)
5078 s1
= SYMBOL_NAME (face
->font
->props
[i
]);
5079 s2
= SYMBOL_NAME (def_face
->font
->props
[i
]);
5080 if (! EQ (Fcompare_strings (s1
, make_number (0), Qnil
,
5081 s2
, make_number (0), Qnil
, Qt
), Qt
))
5087 /* Everything checks out, this face is supported. */
5091 #endif /* HAVE_WINDOW_SYSTEM */
5093 /* Return non-zero if all the face attributes in ATTRS are supported
5096 The definition of `supported' is somewhat heuristic, but basically means
5097 that a face containing all the attributes in ATTRS, when merged
5098 with the default face for display, can be represented in a way that's
5100 \(1) different in appearance than the default face, and
5101 \(2) `close in spirit' to what the attributes specify, if not exact.
5103 Point (2) implies that a `:weight black' attribute will be satisfied
5104 by any terminal that can display bold, and a `:foreground "yellow"' as
5105 long as the terminal can display a yellowish color, but `:slant italic'
5106 will _not_ be satisfied by the tty display code's automatic
5107 substitution of a `dim' face for italic. */
5110 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5113 struct face
*def_face
;
5116 Lisp_Object val
, fg
, bg
;
5117 XColor fg_tty_color
, fg_std_color
;
5118 XColor bg_tty_color
, bg_std_color
;
5119 unsigned test_caps
= 0;
5120 Lisp_Object
*def_attrs
= def_face
->lface
;
5123 /* First check some easy-to-check stuff; ttys support none of the
5124 following attributes, so we can just return false if any are requested
5125 (even if `nominal' values are specified, we should still return false,
5126 as that will be the same value that the default face uses). We
5127 consider :slant unsupportable on ttys, even though the face code
5128 actually `fakes' them using a dim attribute if possible. This is
5129 because the faked result is too different from what the face
5131 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5132 || !UNSPECIFIEDP (attrs
[LFACE_FOUNDRY_INDEX
])
5133 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5134 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5135 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5136 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5137 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5138 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5139 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5143 /* Test for terminal `capabilities' (non-color character attributes). */
5145 /* font weight (bold/dim) */
5146 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
5149 int def_weight
= FONT_WEIGHT_NAME_NUMERIC (def_attrs
[LFACE_WEIGHT_INDEX
]);
5153 if (def_weight
> 100)
5154 return 0; /* same as default */
5155 test_caps
= TTY_CAP_BOLD
;
5157 else if (weight
< 100)
5159 if (def_weight
< 100)
5160 return 0; /* same as default */
5161 test_caps
= TTY_CAP_DIM
;
5163 else if (def_weight
== 100)
5164 return 0; /* same as default */
5168 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5169 if (!UNSPECIFIEDP (val
))
5172 return 0; /* ttys can't use colored underlines */
5173 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5174 return 0; /* same as default */
5176 test_caps
|= TTY_CAP_UNDERLINE
;
5180 val
= attrs
[LFACE_INVERSE_INDEX
];
5181 if (!UNSPECIFIEDP (val
))
5183 if (face_attr_equal_p (val
, def_attrs
[LFACE_INVERSE_INDEX
]))
5184 return 0; /* same as default */
5186 test_caps
|= TTY_CAP_INVERSE
;
5190 /* Color testing. */
5192 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5193 we use them when calling `tty_capable_p' below, even if the face
5194 specifies no colors. */
5195 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5196 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5198 /* Check if foreground color is close enough. */
5199 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5202 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5204 if (face_attr_equal_p (fg
, def_fg
))
5205 return 0; /* same as default */
5206 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5207 return 0; /* not a valid color */
5208 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5209 > TTY_SAME_COLOR_THRESHOLD
)
5210 return 0; /* displayed color is too different */
5212 /* Make sure the color is really different than the default. */
5214 XColor def_fg_color
;
5215 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5216 && (color_distance (&fg_tty_color
, &def_fg_color
)
5217 <= TTY_SAME_COLOR_THRESHOLD
))
5222 /* Check if background color is close enough. */
5223 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5226 Lisp_Object def_bg
= def_attrs
[LFACE_BACKGROUND_INDEX
];
5228 if (face_attr_equal_p (bg
, def_bg
))
5229 return 0; /* same as default */
5230 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5231 return 0; /* not a valid color */
5232 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5233 > TTY_SAME_COLOR_THRESHOLD
)
5234 return 0; /* displayed color is too different */
5236 /* Make sure the color is really different than the default. */
5238 XColor def_bg_color
;
5239 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
5240 && (color_distance (&bg_tty_color
, &def_bg_color
)
5241 <= TTY_SAME_COLOR_THRESHOLD
))
5246 /* If both foreground and background are requested, see if the
5247 distance between them is OK. We just check to see if the distance
5248 between the tty's foreground and background is close enough to the
5249 distance between the standard foreground and background. */
5250 if (STRINGP (fg
) && STRINGP (bg
))
5253 = (color_distance (&fg_std_color
, &bg_std_color
)
5254 - color_distance (&fg_tty_color
, &bg_tty_color
));
5255 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5256 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5261 /* See if the capabilities we selected above are supported, with the
5263 if (test_caps
!= 0 &&
5264 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5268 /* Hmmm, everything checks out, this terminal must support this face. */
5273 DEFUN ("display-supports-face-attributes-p",
5274 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
5276 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5277 The optional argument DISPLAY can be a display name, a frame, or
5278 nil (meaning the selected frame's display).
5280 The definition of `supported' is somewhat heuristic, but basically means
5281 that a face containing all the attributes in ATTRIBUTES, when merged
5282 with the default face for display, can be represented in a way that's
5284 \(1) different in appearance than the default face, and
5285 \(2) `close in spirit' to what the attributes specify, if not exact.
5287 Point (2) implies that a `:weight black' attribute will be satisfied by
5288 any display that can display bold, and a `:foreground \"yellow\"' as long
5289 as it can display a yellowish color, but `:slant italic' will _not_ be
5290 satisfied by the tty display code's automatic substitution of a `dim'
5291 face for italic. */)
5292 (attributes
, display
)
5293 Lisp_Object attributes
, display
;
5295 int supports
= 0, i
;
5298 struct face
*def_face
;
5299 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5301 if (noninteractive
|| !initialized
)
5302 /* We may not be able to access low-level face information in batch
5303 mode, or before being dumped, and this function is not going to
5304 be very useful in those cases anyway, so just give up. */
5308 frame
= selected_frame
;
5309 else if (FRAMEP (display
))
5313 /* Find any frame on DISPLAY. */
5314 Lisp_Object fl_tail
;
5317 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
5319 frame
= XCAR (fl_tail
);
5320 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
5321 XFRAME (frame
)->param_alist
)),
5327 CHECK_LIVE_FRAME (frame
);
5330 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5331 attrs
[i
] = Qunspecified
;
5332 merge_face_ref (f
, attributes
, attrs
, 1, 0);
5334 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5335 if (def_face
== NULL
)
5337 if (! realize_basic_faces (f
))
5338 error ("Cannot realize default face");
5339 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5340 if (def_face
== NULL
)
5341 abort (); /* realize_basic_faces must have set it up */
5344 /* Dispatch to the appropriate handler. */
5345 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5346 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
5347 #ifdef HAVE_WINDOW_SYSTEM
5349 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
5352 return supports
? Qt
: Qnil
;
5356 /***********************************************************************
5358 ***********************************************************************/
5360 DEFUN ("internal-set-font-selection-order",
5361 Finternal_set_font_selection_order
,
5362 Sinternal_set_font_selection_order
, 1, 1, 0,
5363 doc
: /* Set font selection order for face font selection to ORDER.
5364 ORDER must be a list of length 4 containing the symbols `:width',
5365 `:height', `:weight', and `:slant'. Face attributes appearing
5366 first in ORDER are matched first, e.g. if `:height' appears before
5367 `:weight' in ORDER, font selection first tries to find a font with
5368 a suitable height, and then tries to match the font weight.
5375 int indices
[DIM (font_sort_order
)];
5378 bzero (indices
, sizeof indices
);
5382 CONSP (list
) && i
< DIM (indices
);
5383 list
= XCDR (list
), ++i
)
5385 Lisp_Object attr
= XCAR (list
);
5388 if (EQ (attr
, QCwidth
))
5390 else if (EQ (attr
, QCheight
))
5391 xlfd
= XLFD_POINT_SIZE
;
5392 else if (EQ (attr
, QCweight
))
5394 else if (EQ (attr
, QCslant
))
5399 if (indices
[i
] != 0)
5404 if (!NILP (list
) || i
!= DIM (indices
))
5405 signal_error ("Invalid font sort order", order
);
5406 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5407 if (indices
[i
] == 0)
5408 signal_error ("Invalid font sort order", order
);
5410 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5412 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5413 free_all_realized_faces (Qnil
);
5416 font_update_sort_order (font_sort_order
);
5422 DEFUN ("internal-set-alternative-font-family-alist",
5423 Finternal_set_alternative_font_family_alist
,
5424 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5425 doc
: /* Define alternative font families to try in face font selection.
5426 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5427 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5428 be found. Value is ALIST. */)
5432 Lisp_Object tail
, tail2
;
5435 alist
= Fcopy_sequence (alist
);
5436 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5437 for (tail2
= XCAR (tail
); CONSP (tail2
); tail2
= XCDR (tail2
))
5438 XSETCAR (tail2
, Fintern (XCAR (tail2
), Qnil
));
5439 Vface_alternative_font_family_alist
= alist
;
5440 free_all_realized_faces (Qnil
);
5445 DEFUN ("internal-set-alternative-font-registry-alist",
5446 Finternal_set_alternative_font_registry_alist
,
5447 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5448 doc
: /* Define alternative font registries to try in face font selection.
5449 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5450 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
5451 be found. Value is ALIST. */)
5455 Lisp_Object tail
, tail2
;
5458 alist
= Fcopy_sequence (alist
);
5459 for (tail
= alist
; CONSP (tail
); tail
= XCDR (tail
))
5460 for (tail2
= XCAR (tail
); CONSP (tail2
); tail2
= XCDR (tail2
))
5461 XSETCAR (tail2
, Fdowncase (XCAR (tail2
)));
5462 Vface_alternative_font_registry_alist
= alist
;
5463 free_all_realized_faces (Qnil
);
5468 #ifdef HAVE_WINDOW_SYSTEM
5470 /* Ignore the difference of font point size less than this value. */
5472 #define FONT_POINT_SIZE_QUANTUM 5
5474 /* Return the fontset id of the base fontset name or alias name given
5475 by the fontset attribute of ATTRS. Value is -1 if the fontset
5476 attribute of ATTRS doesn't name a fontset. */
5479 face_fontset (attrs
)
5484 name
= attrs
[LFACE_FONTSET_INDEX
];
5485 if (!STRINGP (name
))
5487 return fs_query_fontset (name
, 0);
5490 #endif /* HAVE_WINDOW_SYSTEM */
5494 /***********************************************************************
5496 ***********************************************************************/
5498 /* Realize basic faces on frame F. Value is zero if frame parameters
5499 of F don't contain enough information needed to realize the default
5503 realize_basic_faces (f
)
5507 int count
= SPECPDL_INDEX ();
5509 /* Block input here so that we won't be surprised by an X expose
5510 event, for instance, without having the faces set up. */
5512 specbind (Qscalable_fonts_allowed
, Qt
);
5514 if (realize_default_face (f
))
5516 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5517 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
5518 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5519 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
5520 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5521 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5522 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5523 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5524 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5525 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5526 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
5528 /* Reflect changes in the `menu' face in menu bars. */
5529 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
5531 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
5532 #ifdef USE_X_TOOLKIT
5533 if (FRAME_WINDOW_P (f
))
5534 x_update_menu_appearance (f
);
5541 unbind_to (count
, Qnil
);
5547 /* Realize the default face on frame F. If the face is not fully
5548 specified, make it fully-specified. Attributes of the default face
5549 that are not explicitly specified are taken from frame parameters. */
5552 realize_default_face (f
)
5555 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5557 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5560 /* If the `default' face is not yet known, create it. */
5561 lface
= lface_from_face_name (f
, Qdefault
, 0);
5565 XSETFRAME (frame
, f
);
5566 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5569 #ifdef HAVE_WINDOW_SYSTEM
5570 if (FRAME_WINDOW_P (f
))
5572 Lisp_Object font_object
;
5574 XSETFONT (font_object
, FRAME_FONT (f
));
5575 set_lface_from_font (f
, lface
, font_object
, f
->default_face_done_p
);
5576 LFACE_FONTSET (lface
) = fontset_name (FRAME_FONTSET (f
));
5577 f
->default_face_done_p
= 1;
5579 #endif /* HAVE_WINDOW_SYSTEM */
5581 if (!FRAME_WINDOW_P (f
))
5583 LFACE_FAMILY (lface
) = build_string ("default");
5584 LFACE_FOUNDRY (lface
) = LFACE_FAMILY (lface
);
5585 LFACE_SWIDTH (lface
) = Qnormal
;
5586 LFACE_HEIGHT (lface
) = make_number (1);
5587 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
5588 LFACE_WEIGHT (lface
) = Qnormal
;
5589 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
5590 LFACE_SLANT (lface
) = Qnormal
;
5593 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5594 LFACE_UNDERLINE (lface
) = Qnil
;
5596 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5597 LFACE_OVERLINE (lface
) = Qnil
;
5599 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5600 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5602 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5603 LFACE_BOX (lface
) = Qnil
;
5605 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5606 LFACE_INVERSE (lface
) = Qnil
;
5608 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5610 /* This function is called so early that colors are not yet
5611 set in the frame parameter list. */
5612 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5614 if (CONSP (color
) && STRINGP (XCDR (color
)))
5615 LFACE_FOREGROUND (lface
) = XCDR (color
);
5616 else if (FRAME_WINDOW_P (f
))
5618 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5619 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5624 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5626 /* This function is called so early that colors are not yet
5627 set in the frame parameter list. */
5628 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5629 if (CONSP (color
) && STRINGP (XCDR (color
)))
5630 LFACE_BACKGROUND (lface
) = XCDR (color
);
5631 else if (FRAME_WINDOW_P (f
))
5633 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5634 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5639 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5640 LFACE_STIPPLE (lface
) = Qnil
;
5642 /* Realize the face; it must be fully-specified now. */
5643 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5644 check_lface (lface
);
5645 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5646 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
5648 #ifdef HAVE_WINDOW_SYSTEM
5649 #ifdef HAVE_X_WINDOWS
5650 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
5652 /* This can happen when making a frame on a display that does
5653 not support the default font. */
5657 /* Otherwise, the font specified for the frame was not
5658 acceptable as a font for the default face (perhaps because
5659 auto-scaled fonts are rejected), so we must adjust the frame
5661 x_set_font (f
, LFACE_FONT (lface
), Qnil
);
5663 #endif /* HAVE_X_WINDOWS */
5664 #endif /* HAVE_WINDOW_SYSTEM */
5669 /* Realize basic faces other than the default face in face cache C.
5670 SYMBOL is the face name, ID is the face id the realized face must
5671 have. The default face must have been realized already. */
5674 realize_named_face (f
, symbol
, id
)
5679 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5680 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5681 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5682 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5683 struct face
*new_face
;
5685 /* The default face must exist and be fully specified. */
5686 get_lface_attributes_no_remap (f
, Qdefault
, attrs
, 1);
5687 check_lface_attrs (attrs
);
5688 xassert (lface_fully_specified_p (attrs
));
5690 /* If SYMBOL isn't know as a face, create it. */
5694 XSETFRAME (frame
, f
);
5695 lface
= Finternal_make_lisp_face (symbol
, frame
);
5698 /* Merge SYMBOL's face with the default face. */
5699 get_lface_attributes_no_remap (f
, symbol
, symbol_attrs
, 1);
5700 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5702 /* Realize the face. */
5703 new_face
= realize_face (c
, attrs
, id
);
5707 /* Realize the fully-specified face with attributes ATTRS in face
5708 cache CACHE for ASCII characters. If FORMER_FACE_ID is
5709 non-negative, it is an ID of face to remove before caching the new
5710 face. Value is a pointer to the newly created realized face. */
5712 static struct face
*
5713 realize_face (cache
, attrs
, former_face_id
)
5714 struct face_cache
*cache
;
5720 /* LFACE must be fully specified. */
5721 xassert (cache
!= NULL
);
5722 check_lface_attrs (attrs
);
5724 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5726 /* Remove the former face. */
5727 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5728 uncache_face (cache
, former_face
);
5729 free_realized_face (cache
->f
, former_face
);
5732 if (FRAME_WINDOW_P (cache
->f
))
5733 face
= realize_x_face (cache
, attrs
);
5734 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5735 face
= realize_tty_face (cache
, attrs
);
5736 else if (FRAME_INITIAL_P (cache
->f
))
5738 /* Create a dummy face. */
5739 face
= make_realized_face (attrs
);
5744 /* Insert the new face. */
5745 cache_face (cache
, face
, lface_hash (attrs
));
5750 #ifdef HAVE_WINDOW_SYSTEM
5751 /* Realize the fully-specified face that uses FONT-OBJECT and has the
5752 same attributes as BASE_FACE except for the font on frame F.
5753 FONT-OBJECT may be nil, in which case, realized a face of
5756 static struct face
*
5757 realize_non_ascii_face (f
, font_object
, base_face
)
5759 Lisp_Object font_object
;
5760 struct face
*base_face
;
5762 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5765 face
= (struct face
*) xmalloc (sizeof *face
);
5770 = (! NILP (font_object
)
5771 && FONT_WEIGHT_NAME_NUMERIC (face
->lface
[LFACE_WEIGHT_INDEX
]) > 100
5772 && FONT_WEIGHT_NUMERIC (font_object
) <= 100);
5774 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5775 face
->colors_copied_bitwise_p
= 1;
5776 face
->font
= NILP (font_object
) ? NULL
: XFONT_OBJECT (font_object
);
5779 cache_face (cache
, face
, face
->hash
);
5783 #endif /* HAVE_WINDOW_SYSTEM */
5786 /* Realize the fully-specified face with attributes ATTRS in face
5787 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
5788 the new face doesn't share font with the default face, a fontname
5789 is allocated from the heap and set in `font_name' of the new face,
5790 but it is not yet loaded here. Value is a pointer to the newly
5791 created realized face. */
5793 static struct face
*
5794 realize_x_face (cache
, attrs
)
5795 struct face_cache
*cache
;
5798 struct face
*face
= NULL
;
5799 #ifdef HAVE_WINDOW_SYSTEM
5800 struct face
*default_face
;
5802 Lisp_Object stipple
, overline
, strike_through
, box
;
5804 xassert (FRAME_WINDOW_P (cache
->f
));
5806 /* Allocate a new realized face. */
5807 face
= make_realized_face (attrs
);
5808 face
->ascii_face
= face
;
5812 /* Determine the font to use. Most of the time, the font will be
5813 the same as the font of the default face, so try that first. */
5814 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5816 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5818 face
->font
= default_face
->font
;
5820 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
5824 /* If the face attribute ATTRS specifies a fontset, use it as
5825 the base of a new realized fontset. Otherwise, use the same
5826 base fontset as of the default face. The base determines
5827 registry and encoding of a font. It may also determine
5828 foundry and family. The other fields of font name pattern
5829 are constructed from ATTRS. */
5830 int fontset
= face_fontset (attrs
);
5832 /* If we are realizing the default face, ATTRS should specify a
5833 fontset. In other words, if FONTSET is -1, we are not
5834 realizing the default face, thus the default face should have
5835 already been realized. */
5837 fontset
= default_face
->fontset
;
5840 if (! FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5841 attrs
[LFACE_FONT_INDEX
]
5842 = font_load_for_lface (f
, attrs
, attrs
[LFACE_FONT_INDEX
]);
5843 if (FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
]))
5845 face
->font
= XFONT_OBJECT (attrs
[LFACE_FONT_INDEX
]);
5846 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
5856 && FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]) > 100
5857 && FONT_WEIGHT_NUMERIC (attrs
[LFACE_FONT_INDEX
]) <= 100)
5858 face
->overstrike
= 1;
5860 /* Load colors, and set remaining attributes. */
5862 load_face_colors (f
, face
, attrs
);
5865 box
= attrs
[LFACE_BOX_INDEX
];
5868 /* A simple box of line width 1 drawn in color given by
5870 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5872 face
->box
= FACE_SIMPLE_BOX
;
5873 face
->box_line_width
= 1;
5875 else if (INTEGERP (box
))
5877 /* Simple box of specified line width in foreground color of the
5879 xassert (XINT (box
) != 0);
5880 face
->box
= FACE_SIMPLE_BOX
;
5881 face
->box_line_width
= XINT (box
);
5882 face
->box_color
= face
->foreground
;
5883 face
->box_color_defaulted_p
= 1;
5885 else if (CONSP (box
))
5887 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5888 being one of `raised' or `sunken'. */
5889 face
->box
= FACE_SIMPLE_BOX
;
5890 face
->box_color
= face
->foreground
;
5891 face
->box_color_defaulted_p
= 1;
5892 face
->box_line_width
= 1;
5896 Lisp_Object keyword
, value
;
5898 keyword
= XCAR (box
);
5906 if (EQ (keyword
, QCline_width
))
5908 if (INTEGERP (value
) && XINT (value
) != 0)
5909 face
->box_line_width
= XINT (value
);
5911 else if (EQ (keyword
, QCcolor
))
5913 if (STRINGP (value
))
5915 face
->box_color
= load_color (f
, face
, value
,
5917 face
->use_box_color_for_shadows_p
= 1;
5920 else if (EQ (keyword
, QCstyle
))
5922 if (EQ (value
, Qreleased_button
))
5923 face
->box
= FACE_RAISED_BOX
;
5924 else if (EQ (value
, Qpressed_button
))
5925 face
->box
= FACE_SUNKEN_BOX
;
5930 /* Text underline, overline, strike-through. */
5932 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5934 /* Use default color (same as foreground color). */
5935 face
->underline_p
= 1;
5936 face
->underline_defaulted_p
= 1;
5937 face
->underline_color
= 0;
5939 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5941 /* Use specified color. */
5942 face
->underline_p
= 1;
5943 face
->underline_defaulted_p
= 0;
5944 face
->underline_color
5945 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5946 LFACE_UNDERLINE_INDEX
);
5948 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5950 face
->underline_p
= 0;
5951 face
->underline_defaulted_p
= 0;
5952 face
->underline_color
= 0;
5955 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5956 if (STRINGP (overline
))
5958 face
->overline_color
5959 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5960 LFACE_OVERLINE_INDEX
);
5961 face
->overline_p
= 1;
5963 else if (EQ (overline
, Qt
))
5965 face
->overline_color
= face
->foreground
;
5966 face
->overline_color_defaulted_p
= 1;
5967 face
->overline_p
= 1;
5970 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5971 if (STRINGP (strike_through
))
5973 face
->strike_through_color
5974 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5975 LFACE_STRIKE_THROUGH_INDEX
);
5976 face
->strike_through_p
= 1;
5978 else if (EQ (strike_through
, Qt
))
5980 face
->strike_through_color
= face
->foreground
;
5981 face
->strike_through_color_defaulted_p
= 1;
5982 face
->strike_through_p
= 1;
5985 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
5986 if (!NILP (stipple
))
5987 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
5988 #endif /* HAVE_WINDOW_SYSTEM */
5994 /* Map a specified color of face FACE on frame F to a tty color index.
5995 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
5996 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
5997 default foreground/background colors. */
6000 map_tty_color (f
, face
, idx
, defaulted
)
6003 enum lface_attribute_index idx
;
6006 Lisp_Object frame
, color
, def
;
6007 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6008 unsigned long default_pixel
, default_other_pixel
, pixel
;
6010 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6014 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6015 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6019 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6020 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6023 XSETFRAME (frame
, f
);
6024 color
= face
->lface
[idx
];
6028 && CONSP (Vtty_defined_color_alist
)
6029 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6032 /* Associations in tty-defined-color-alist are of the form
6033 (NAME INDEX R G B). We need the INDEX part. */
6034 pixel
= XINT (XCAR (XCDR (def
)));
6037 if (pixel
== default_pixel
&& STRINGP (color
))
6039 pixel
= load_color (f
, face
, color
, idx
);
6042 /* If the foreground of the default face is the default color,
6043 use the foreground color defined by the frame. */
6044 if (FRAME_MSDOS_P (f
))
6046 if (pixel
== default_pixel
6047 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6050 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6052 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6053 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6056 else if (pixel
== default_other_pixel
)
6059 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6061 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6062 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6070 face
->foreground
= pixel
;
6072 face
->background
= pixel
;
6076 /* Realize the fully-specified face with attributes ATTRS in face
6077 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
6078 Value is a pointer to the newly created realized face. */
6080 static struct face
*
6081 realize_tty_face (cache
, attrs
)
6082 struct face_cache
*cache
;
6087 int face_colors_defaulted
= 0;
6088 struct frame
*f
= cache
->f
;
6090 /* Frame must be a termcap frame. */
6091 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6093 /* Allocate a new realized face. */
6094 face
= make_realized_face (attrs
);
6096 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6099 /* Map face attributes to TTY appearances. We map slant to
6100 dimmed text because we want italic text to appear differently
6101 and because dimmed text is probably used infrequently. */
6102 weight
= FONT_WEIGHT_NAME_NUMERIC (attrs
[LFACE_WEIGHT_INDEX
]);
6103 slant
= FONT_SLANT_NAME_NUMERIC (attrs
[LFACE_SLANT_INDEX
]);
6105 face
->tty_bold_p
= 1;
6106 if (weight
< 100 || slant
!= 100)
6107 face
->tty_dim_p
= 1;
6108 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6109 face
->tty_underline_p
= 1;
6110 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6111 face
->tty_reverse_p
= 1;
6113 /* Map color names to color indices. */
6114 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6115 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6117 /* Swap colors if face is inverse-video. If the colors are taken
6118 from the frame colors, they are already inverted, since the
6119 frame-creation function calls x-handle-reverse-video. */
6120 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6122 unsigned long tem
= face
->foreground
;
6123 face
->foreground
= face
->background
;
6124 face
->background
= tem
;
6127 if (tty_suppress_bold_inverse_default_colors_p
6129 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6130 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6131 face
->tty_bold_p
= 0;
6137 DEFUN ("tty-suppress-bold-inverse-default-colors",
6138 Ftty_suppress_bold_inverse_default_colors
,
6139 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6140 doc
: /* Suppress/allow boldness of faces with inverse default colors.
6141 SUPPRESS non-nil means suppress it.
6142 This affects bold faces on TTYs whose foreground is the default background
6143 color of the display and whose background is the default foreground color.
6144 For such faces, the bold face attribute is ignored if this variable
6147 Lisp_Object suppress
;
6149 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6150 ++face_change_count
;
6156 /***********************************************************************
6158 ***********************************************************************/
6160 /* Return the ID of the face to use to display character CH with face
6161 property PROP on frame F in current_buffer. */
6164 compute_char_face (f
, ch
, prop
)
6171 if (NILP (current_buffer
->enable_multibyte_characters
))
6176 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6177 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
6181 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6182 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6183 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6184 merge_face_ref (f
, prop
, attrs
, 1, 0);
6185 face_id
= lookup_face (f
, attrs
);
6191 /* Return the face ID associated with buffer position POS for
6192 displaying ASCII characters. Return in *ENDPTR the position at
6193 which a different face is needed, as far as text properties and
6194 overlays are concerned. W is a window displaying current_buffer.
6196 REGION_BEG, REGION_END delimit the region, so it can be
6199 LIMIT is a position not to scan beyond. That is to limit the time
6200 this function can take.
6202 If MOUSE is non-zero, use the character's mouse-face, not its face.
6204 The face returned is suitable for displaying ASCII characters. */
6207 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6208 endptr
, limit
, mouse
)
6211 EMACS_INT region_beg
, region_end
;
6216 struct frame
*f
= XFRAME (w
->frame
);
6217 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6218 Lisp_Object prop
, position
;
6220 Lisp_Object
*overlay_vec
;
6223 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6224 Lisp_Object limit1
, end
;
6225 struct face
*default_face
;
6227 /* W must display the current buffer. We could write this function
6228 to use the frame and buffer of W, but right now it doesn't. */
6229 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6231 XSETFRAME (frame
, f
);
6232 XSETFASTINT (position
, pos
);
6235 if (pos
< region_beg
&& region_beg
< endpos
)
6236 endpos
= region_beg
;
6238 /* Get the `face' or `mouse_face' text property at POS, and
6239 determine the next position at which the property changes. */
6240 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6241 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6242 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6244 endpos
= XINT (end
);
6246 /* Look at properties from overlays. */
6248 EMACS_INT next_overlay
;
6250 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
6251 if (next_overlay
< endpos
)
6252 endpos
= next_overlay
;
6258 /* Perhaps remap BASE_FACE_ID to a user-specified alternative. */
6259 if (NILP (Vface_remapping_alist
))
6260 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6262 default_face
= FACE_FROM_ID (f
, lookup_basic_face (f
, DEFAULT_FACE_ID
));
6264 /* Optimize common cases where we can use the default face. */
6267 && !(pos
>= region_beg
&& pos
< region_end
))
6268 return default_face
->id
;
6270 /* Begin with attributes from the default face. */
6271 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6273 /* Merge in attributes specified via text properties. */
6275 merge_face_ref (f
, prop
, attrs
, 1, 0);
6277 /* Now merge the overlay data. */
6278 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6279 for (i
= 0; i
< noverlays
; i
++)
6284 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6286 merge_face_ref (f
, prop
, attrs
, 1, 0);
6288 oend
= OVERLAY_END (overlay_vec
[i
]);
6289 oendpos
= OVERLAY_POSITION (oend
);
6290 if (oendpos
< endpos
)
6294 /* If in the region, merge in the region face. */
6295 if (pos
>= region_beg
&& pos
< region_end
)
6297 merge_named_face (f
, Qregion
, attrs
, 0);
6299 if (region_end
< endpos
)
6300 endpos
= region_end
;
6305 /* Look up a realized face with the given face attributes,
6306 or realize a new one for ASCII characters. */
6307 return lookup_face (f
, attrs
);
6310 /* Return the face ID at buffer position POS for displaying ASCII
6311 characters associated with overlay strings for overlay OVERLAY.
6313 Like face_at_buffer_position except for OVERLAY. Currently it
6314 simply disregards the `face' properties of all overlays. */
6317 face_for_overlay_string (w
, pos
, region_beg
, region_end
,
6318 endptr
, limit
, mouse
, overlay
)
6321 EMACS_INT region_beg
, region_end
;
6325 Lisp_Object overlay
;
6327 struct frame
*f
= XFRAME (w
->frame
);
6328 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6329 Lisp_Object prop
, position
;
6332 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6333 Lisp_Object limit1
, end
;
6334 struct face
*default_face
;
6336 /* W must display the current buffer. We could write this function
6337 to use the frame and buffer of W, but right now it doesn't. */
6338 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6340 XSETFRAME (frame
, f
);
6341 XSETFASTINT (position
, pos
);
6344 if (pos
< region_beg
&& region_beg
< endpos
)
6345 endpos
= region_beg
;
6347 /* Get the `face' or `mouse_face' text property at POS, and
6348 determine the next position at which the property changes. */
6349 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6350 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6351 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6353 endpos
= XINT (end
);
6357 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6359 /* Optimize common cases where we can use the default face. */
6361 && !(pos
>= region_beg
&& pos
< region_end
))
6362 return DEFAULT_FACE_ID
;
6364 /* Begin with attributes from the default face. */
6365 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6367 /* Merge in attributes specified via text properties. */
6369 merge_face_ref (f
, prop
, attrs
, 1, 0);
6371 /* If in the region, merge in the region face. */
6372 if (pos
>= region_beg
&& pos
< region_end
)
6374 merge_named_face (f
, Qregion
, attrs
, 0);
6376 if (region_end
< endpos
)
6377 endpos
= region_end
;
6382 /* Look up a realized face with the given face attributes,
6383 or realize a new one for ASCII characters. */
6384 return lookup_face (f
, attrs
);
6388 /* Compute the face at character position POS in Lisp string STRING on
6389 window W, for ASCII characters.
6391 If STRING is an overlay string, it comes from position BUFPOS in
6392 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6393 not an overlay string. W must display the current buffer.
6394 REGION_BEG and REGION_END give the start and end positions of the
6395 region; both are -1 if no region is visible.
6397 BASE_FACE_ID is the id of a face to merge with. For strings coming
6398 from overlays or the `display' property it is the face at BUFPOS.
6400 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6402 Set *ENDPTR to the next position where to check for faces in
6403 STRING; -1 if the face is constant from POS to the end of the
6406 Value is the id of the face to use. The face returned is suitable
6407 for displaying ASCII characters. */
6410 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6411 region_end
, endptr
, base_face_id
, mouse_p
)
6414 EMACS_INT pos
, bufpos
;
6415 EMACS_INT region_beg
, region_end
;
6417 enum face_id base_face_id
;
6420 Lisp_Object prop
, position
, end
, limit
;
6421 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6422 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6423 struct face
*base_face
;
6424 int multibyte_p
= STRING_MULTIBYTE (string
);
6425 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6427 /* Get the value of the face property at the current position within
6428 STRING. Value is nil if there is no face property. */
6429 XSETFASTINT (position
, pos
);
6430 prop
= Fget_text_property (position
, prop_name
, string
);
6432 /* Get the next position at which to check for faces. Value of end
6433 is nil if face is constant all the way to the end of the string.
6434 Otherwise it is a string position where to check faces next.
6435 Limit is the maximum position up to which to check for property
6436 changes in Fnext_single_property_change. Strings are usually
6437 short, so set the limit to the end of the string. */
6438 XSETFASTINT (limit
, SCHARS (string
));
6439 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6441 *endptr
= XFASTINT (end
);
6445 base_face
= FACE_FROM_ID (f
, base_face_id
);
6446 xassert (base_face
);
6448 /* Optimize the default case that there is no face property and we
6449 are not in the region. */
6451 && (base_face_id
!= DEFAULT_FACE_ID
6452 /* BUFPOS <= 0 means STRING is not an overlay string, so
6453 that the region doesn't have to be taken into account. */
6455 || bufpos
< region_beg
6456 || bufpos
>= region_end
)
6458 /* We can't realize faces for different charsets differently
6459 if we don't have fonts, so we can stop here if not working
6460 on a window-system frame. */
6461 || !FRAME_WINDOW_P (f
)
6462 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6463 return base_face
->id
;
6465 /* Begin with attributes from the base face. */
6466 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6468 /* Merge in attributes specified via text properties. */
6470 merge_face_ref (f
, prop
, attrs
, 1, 0);
6472 /* If in the region, merge in the region face. */
6474 && bufpos
>= region_beg
6475 && bufpos
< region_end
)
6476 merge_named_face (f
, Qregion
, attrs
, 0);
6478 /* Look up a realized face with the given face attributes,
6479 or realize a new one for ASCII characters. */
6480 return lookup_face (f
, attrs
);
6484 /* Merge a face into a realized face.
6486 F is frame where faces are (to be) realized.
6488 FACE_NAME is named face to merge.
6490 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
6492 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
6494 BASE_FACE_ID is realized face to merge into.
6500 merge_faces (f
, face_name
, face_id
, base_face_id
)
6502 Lisp_Object face_name
;
6503 int face_id
, base_face_id
;
6505 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6506 struct face
*base_face
;
6508 base_face
= FACE_FROM_ID (f
, base_face_id
);
6510 return base_face_id
;
6512 if (EQ (face_name
, Qt
))
6514 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
6515 return base_face_id
;
6516 face_name
= lface_id_to_name
[face_id
];
6517 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 1);
6520 return base_face_id
;
6523 /* Begin with attributes from the base face. */
6524 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6526 if (!NILP (face_name
))
6528 if (!merge_named_face (f
, face_name
, attrs
, 0))
6529 return base_face_id
;
6535 return base_face_id
;
6536 face
= FACE_FROM_ID (f
, face_id
);
6538 return base_face_id
;
6539 merge_face_vectors (f
, face
->lface
, attrs
, 0);
6542 /* Look up a realized face with the given face attributes,
6543 or realize a new one for ASCII characters. */
6544 return lookup_face (f
, attrs
);
6548 /***********************************************************************
6550 ***********************************************************************/
6554 /* Print the contents of the realized face FACE to stderr. */
6557 dump_realized_face (face
)
6560 fprintf (stderr
, "ID: %d\n", face
->id
);
6561 #ifdef HAVE_X_WINDOWS
6562 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
6564 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6566 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
6567 fprintf (stderr
, "background: 0x%lx (%s)\n",
6569 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
6571 fprintf (stderr
, "font_name: %s (%s)\n",
6572 SDATA (face
->font
->props
[FONT_NAME_INDEX
]),
6573 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
6574 #ifdef HAVE_X_WINDOWS
6575 fprintf (stderr
, "font = %p\n", face
->font
);
6577 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6578 fprintf (stderr
, "underline: %d (%s)\n",
6580 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
6581 fprintf (stderr
, "hash: %d\n", face
->hash
);
6585 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
6593 fprintf (stderr
, "font selection order: ");
6594 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6595 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6596 fprintf (stderr
, "\n");
6598 fprintf (stderr
, "alternative fonts: ");
6599 debug_print (Vface_alternative_font_family_alist
);
6600 fprintf (stderr
, "\n");
6602 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6603 Fdump_face (make_number (i
));
6609 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6611 error ("Not a valid face");
6612 dump_realized_face (face
);
6619 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6620 0, 0, 0, doc
: /* */)
6623 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6624 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6625 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6629 #endif /* GLYPH_DEBUG != 0 */
6633 /***********************************************************************
6635 ***********************************************************************/
6640 Qface
= intern ("face");
6642 Qface_no_inherit
= intern ("face-no-inherit");
6643 staticpro (&Qface_no_inherit
);
6644 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6645 staticpro (&Qbitmap_spec_p
);
6646 Qframe_set_background_mode
= intern ("frame-set-background-mode");
6647 staticpro (&Qframe_set_background_mode
);
6649 /* Lisp face attribute keywords. */
6650 QCfamily
= intern (":family");
6651 staticpro (&QCfamily
);
6652 QCheight
= intern (":height");
6653 staticpro (&QCheight
);
6654 QCweight
= intern (":weight");
6655 staticpro (&QCweight
);
6656 QCslant
= intern (":slant");
6657 staticpro (&QCslant
);
6658 QCunderline
= intern (":underline");
6659 staticpro (&QCunderline
);
6660 QCinverse_video
= intern (":inverse-video");
6661 staticpro (&QCinverse_video
);
6662 QCreverse_video
= intern (":reverse-video");
6663 staticpro (&QCreverse_video
);
6664 QCforeground
= intern (":foreground");
6665 staticpro (&QCforeground
);
6666 QCbackground
= intern (":background");
6667 staticpro (&QCbackground
);
6668 QCstipple
= intern (":stipple");
6669 staticpro (&QCstipple
);
6670 QCwidth
= intern (":width");
6671 staticpro (&QCwidth
);
6672 QCfont
= intern (":font");
6673 staticpro (&QCfont
);
6674 QCfontset
= intern (":fontset");
6675 staticpro (&QCfontset
);
6676 QCbold
= intern (":bold");
6677 staticpro (&QCbold
);
6678 QCitalic
= intern (":italic");
6679 staticpro (&QCitalic
);
6680 QCoverline
= intern (":overline");
6681 staticpro (&QCoverline
);
6682 QCstrike_through
= intern (":strike-through");
6683 staticpro (&QCstrike_through
);
6684 QCbox
= intern (":box");
6686 QCinherit
= intern (":inherit");
6687 staticpro (&QCinherit
);
6689 /* Symbols used for Lisp face attribute values. */
6690 QCcolor
= intern (":color");
6691 staticpro (&QCcolor
);
6692 QCline_width
= intern (":line-width");
6693 staticpro (&QCline_width
);
6694 QCstyle
= intern (":style");
6695 staticpro (&QCstyle
);
6696 Qreleased_button
= intern ("released-button");
6697 staticpro (&Qreleased_button
);
6698 Qpressed_button
= intern ("pressed-button");
6699 staticpro (&Qpressed_button
);
6700 Qnormal
= intern ("normal");
6701 staticpro (&Qnormal
);
6702 Qultra_light
= intern ("ultra-light");
6703 staticpro (&Qultra_light
);
6704 Qextra_light
= intern ("extra-light");
6705 staticpro (&Qextra_light
);
6706 Qlight
= intern ("light");
6707 staticpro (&Qlight
);
6708 Qsemi_light
= intern ("semi-light");
6709 staticpro (&Qsemi_light
);
6710 Qsemi_bold
= intern ("semi-bold");
6711 staticpro (&Qsemi_bold
);
6712 Qbold
= intern ("bold");
6714 Qextra_bold
= intern ("extra-bold");
6715 staticpro (&Qextra_bold
);
6716 Qultra_bold
= intern ("ultra-bold");
6717 staticpro (&Qultra_bold
);
6718 Qoblique
= intern ("oblique");
6719 staticpro (&Qoblique
);
6720 Qitalic
= intern ("italic");
6721 staticpro (&Qitalic
);
6722 Qreverse_oblique
= intern ("reverse-oblique");
6723 staticpro (&Qreverse_oblique
);
6724 Qreverse_italic
= intern ("reverse-italic");
6725 staticpro (&Qreverse_italic
);
6726 Qultra_condensed
= intern ("ultra-condensed");
6727 staticpro (&Qultra_condensed
);
6728 Qextra_condensed
= intern ("extra-condensed");
6729 staticpro (&Qextra_condensed
);
6730 Qcondensed
= intern ("condensed");
6731 staticpro (&Qcondensed
);
6732 Qsemi_condensed
= intern ("semi-condensed");
6733 staticpro (&Qsemi_condensed
);
6734 Qsemi_expanded
= intern ("semi-expanded");
6735 staticpro (&Qsemi_expanded
);
6736 Qexpanded
= intern ("expanded");
6737 staticpro (&Qexpanded
);
6738 Qextra_expanded
= intern ("extra-expanded");
6739 staticpro (&Qextra_expanded
);
6740 Qultra_expanded
= intern ("ultra-expanded");
6741 staticpro (&Qultra_expanded
);
6742 Qbackground_color
= intern ("background-color");
6743 staticpro (&Qbackground_color
);
6744 Qforeground_color
= intern ("foreground-color");
6745 staticpro (&Qforeground_color
);
6746 Qunspecified
= intern ("unspecified");
6747 staticpro (&Qunspecified
);
6748 Qignore_defface
= intern (":ignore-defface");
6749 staticpro (&Qignore_defface
);
6751 Qface_alias
= intern ("face-alias");
6752 staticpro (&Qface_alias
);
6753 Qdefault
= intern ("default");
6754 staticpro (&Qdefault
);
6755 Qtool_bar
= intern ("tool-bar");
6756 staticpro (&Qtool_bar
);
6757 Qregion
= intern ("region");
6758 staticpro (&Qregion
);
6759 Qfringe
= intern ("fringe");
6760 staticpro (&Qfringe
);
6761 Qheader_line
= intern ("header-line");
6762 staticpro (&Qheader_line
);
6763 Qscroll_bar
= intern ("scroll-bar");
6764 staticpro (&Qscroll_bar
);
6765 Qmenu
= intern ("menu");
6767 Qcursor
= intern ("cursor");
6768 staticpro (&Qcursor
);
6769 Qborder
= intern ("border");
6770 staticpro (&Qborder
);
6771 Qmouse
= intern ("mouse");
6772 staticpro (&Qmouse
);
6773 Qmode_line_inactive
= intern ("mode-line-inactive");
6774 staticpro (&Qmode_line_inactive
);
6775 Qvertical_border
= intern ("vertical-border");
6776 staticpro (&Qvertical_border
);
6777 Qtty_color_desc
= intern ("tty-color-desc");
6778 staticpro (&Qtty_color_desc
);
6779 Qtty_color_standard_values
= intern ("tty-color-standard-values");
6780 staticpro (&Qtty_color_standard_values
);
6781 Qtty_color_by_index
= intern ("tty-color-by-index");
6782 staticpro (&Qtty_color_by_index
);
6783 Qtty_color_alist
= intern ("tty-color-alist");
6784 staticpro (&Qtty_color_alist
);
6785 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
6786 staticpro (&Qscalable_fonts_allowed
);
6788 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
6789 staticpro (&Vparam_value_alist
);
6790 Vface_alternative_font_family_alist
= Qnil
;
6791 staticpro (&Vface_alternative_font_family_alist
);
6792 Vface_alternative_font_registry_alist
= Qnil
;
6793 staticpro (&Vface_alternative_font_registry_alist
);
6795 defsubr (&Sinternal_make_lisp_face
);
6796 defsubr (&Sinternal_lisp_face_p
);
6797 defsubr (&Sinternal_set_lisp_face_attribute
);
6798 #ifdef HAVE_WINDOW_SYSTEM
6799 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6801 defsubr (&Scolor_gray_p
);
6802 defsubr (&Scolor_supported_p
);
6803 defsubr (&Sface_attribute_relative_p
);
6804 defsubr (&Smerge_face_attribute
);
6805 defsubr (&Sinternal_get_lisp_face_attribute
);
6806 defsubr (&Sinternal_lisp_face_attribute_values
);
6807 defsubr (&Sinternal_lisp_face_equal_p
);
6808 defsubr (&Sinternal_lisp_face_empty_p
);
6809 defsubr (&Sinternal_copy_lisp_face
);
6810 defsubr (&Sinternal_merge_in_global_face
);
6811 defsubr (&Sface_font
);
6812 defsubr (&Sframe_face_alist
);
6813 defsubr (&Sdisplay_supports_face_attributes_p
);
6814 defsubr (&Scolor_distance
);
6815 defsubr (&Sinternal_set_font_selection_order
);
6816 defsubr (&Sinternal_set_alternative_font_family_alist
);
6817 defsubr (&Sinternal_set_alternative_font_registry_alist
);
6818 defsubr (&Sface_attributes_as_vector
);
6820 defsubr (&Sdump_face
);
6821 defsubr (&Sshow_face_resources
);
6822 #endif /* GLYPH_DEBUG */
6823 defsubr (&Sclear_face_cache
);
6824 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6826 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6827 defsubr (&Sdump_colors
);
6830 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6831 doc
: /* *Limit for font matching.
6832 If an integer > 0, font matching functions won't load more than
6833 that number of fonts when searching for a matching font. */);
6834 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6836 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6837 doc
: /* List of global face definitions (for internal use only.) */);
6838 Vface_new_frame_defaults
= Qnil
;
6840 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6841 doc
: /* *Default stipple pattern used on monochrome displays.
6842 This stipple pattern is used on monochrome displays
6843 instead of shades of gray for a face background color.
6844 See `set-face-stipple' for possible values for this variable. */);
6845 Vface_default_stipple
= build_string ("gray3");
6847 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
6848 doc
: /* An alist of defined terminal colors and their RGB values. */);
6849 Vtty_defined_color_alist
= Qnil
;
6851 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6852 doc
: /* Allowed scalable fonts.
6853 A value of nil means don't allow any scalable fonts.
6854 A value of t means allow any scalable font.
6855 Otherwise, value must be a list of regular expressions. A font may be
6856 scaled if its name matches a regular expression in the list.
6857 Note that if value is nil, a scalable font might still be used, if no
6858 other font of the appropriate family and registry is available. */);
6859 Vscalable_fonts_allowed
= Qnil
;
6861 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
6862 doc
: /* List of ignored fonts.
6863 Each element is a regular expression that matches names of fonts to
6865 Vface_ignored_fonts
= Qnil
;
6867 DEFVAR_LISP ("face-remapping-alist", &Vface_remapping_alist
,
6868 doc
: /* Alist of face remappings.
6869 Each element is of the form:
6871 (FACE REPLACEMENT...),
6873 which causes display of the face FACE to use REPLACEMENT... instead.
6874 REPLACEMENT... is interpreted the same way the value of a `face' text
6875 property is: it may be (1) A face name, (2) A list of face names, (3) A
6876 property-list of face attribute/value pairs, or (4) A list of face names
6877 intermixed with lists containing face attribute/value pairs.
6879 Multiple entries in REPLACEMENT... are merged together to form the final
6880 result, with faces or attributes earlier in the list taking precedence
6881 over those that are later.
6883 Face-name remapping cycles are suppressed; recursive references use the
6884 underlying face instead of the remapped face. So a remapping of the form:
6886 (FACE EXTRA-FACE... FACE)
6890 (FACE (FACE-ATTR VAL ...) FACE)
6892 will cause EXTRA-FACE... or (FACE-ATTR VAL ...) to be _merged_ with the
6893 existing definition of FACE. Note that for the default face, this isn't
6894 necessary, as every face inherits from the default face.
6896 Making this variable buffer-local is a good way to allow buffer-specific
6897 face definitions. For instance, the mode my-mode could define a face
6898 `my-mode-default', and then in the mode setup function, do:
6900 (set (make-local-variable 'face-remapping-alist)
6901 '((default my-mode-default)))). */);
6902 Vface_remapping_alist
= Qnil
;
6904 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
6905 doc
: /* Alist of fonts vs the rescaling factors.
6906 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
6907 FONT-NAME-PATTERN is a regular expression matching a font name, and
6908 RESCALE-RATIO is a floating point number to specify how much larger
6909 \(or smaller) font we should use. For instance, if a face requests
6910 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
6911 Vface_font_rescale_alist
= Qnil
;
6913 #ifdef HAVE_WINDOW_SYSTEM
6914 defsubr (&Sbitmap_spec_p
);
6915 defsubr (&Sx_list_fonts
);
6916 defsubr (&Sinternal_face_x_get_resource
);
6917 defsubr (&Sx_family_fonts
);
6918 defsubr (&Sx_font_family_list
);
6919 #endif /* HAVE_WINDOW_SYSTEM */
6922 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
6923 (do not change this comment) */