1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007 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 2, or (at your option)
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; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
22 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
26 When using Emacs with X, the display style of characters can be
27 changed by defining `faces'. Each face can specify the following
32 2. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 3. Font height in 1/10pt.
37 4. Font weight, e.g. `bold'.
39 5. Font slant, e.g. `italic'.
45 8. Whether or not characters should be underlined, and in what color.
47 9. Whether or not characters should be displayed in inverse video.
49 10. A background stipple, a bitmap.
51 11. Whether or not characters should be overlined, and in what color.
53 12. Whether or not characters should be strike-through, and in what
56 13. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 14. Font pattern, or nil. This is a special attribute.
60 When this attribute is specified, the face uses a font opened by
61 that pattern as is. In addition, all the other font-related
62 attributes (1st thru 5th) are generated from the opened font name.
63 On the other hand, if one of the other font-related attributes are
64 specified, this attribute is set to nil. In that case, the face
65 doesn't inherit this attribute from the `default' face, and uses a
66 font determined by the other attributes (those may be inherited
67 from the `default' face).
69 15. A face name or list of face names from which to inherit attributes.
71 16. A specified average font width, which is invisible from Lisp,
72 and is used to ensure that a font specified on the command line,
73 for example, can be matched exactly.
77 Faces are frame-local by nature because Emacs allows to define the
78 same named face (face names are symbols) differently for different
79 frames. Each frame has an alist of face definitions for all named
80 faces. The value of a named face in such an alist is a Lisp vector
81 with the symbol `face' in slot 0, and a slot for each of the face
82 attributes mentioned above.
84 There is also a global face alist `Vface_new_frame_defaults'. Face
85 definitions from this list are used to initialize faces of newly
88 A face doesn't have to specify all attributes. Those not specified
89 have a value of `unspecified'. Faces specifying all attributes but
90 the 14th are called `fully-specified'.
95 The display style of a given character in the text is determined by
96 combining several faces. This process is called `face merging'.
97 Any aspect of the display style that isn't specified by overlays or
98 text properties is taken from the `default' face. Since it is made
99 sure that the default face is always fully-specified, face merging
100 always results in a fully-specified face.
105 After all face attributes for a character have been determined by
106 merging faces of that character, that face is `realized'. The
107 realization process maps face attributes to what is physically
108 available on the system where Emacs runs. The result is a
109 `realized face' in form of a struct face which is stored in the
110 face cache of the frame on which it was realized.
112 Face realization is done in the context of the character to display
113 because different fonts may be used for different characters. In
114 other words, for characters that have different font
115 specifications, different realized faces are needed to display
118 Font specification is done by fontsets. See the comment in
119 fontset.c for the details. In the current implementation, all ASCII
120 characters share the same font in a fontset.
122 Faces are at first realized for ASCII characters, and, at that
123 time, assigned a specific realized fontset. Hereafter, we call
124 such a face as `ASCII face'. When a face for a multibyte character
125 is realized, it inherits (thus shares) a fontset of an ASCII face
126 that has the same attributes other than font-related ones.
128 Thus, all realized faces have a realized fontset.
133 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
134 font as ASCII characters. That is because it is expected that
135 unibyte text users specify a font that is suitable both for ASCII
136 and raw 8-bit characters.
141 Font selection tries to find the best available matching font for a
142 given (character, face) combination.
144 If the face specifies a fontset name, that fontset determines a
145 pattern for fonts of the given character. If the face specifies a
146 font name or the other font-related attributes, a fontset is
147 realized from the default fontset. In that case, that
148 specification determines a pattern for ASCII characters and the
149 default fontset determines a pattern for multibyte characters.
151 Available fonts on the system on which Emacs runs are then matched
152 against the font pattern. The result of font selection is the best
153 match for the given face attributes in this font list.
155 Font selection can be influenced by the user.
157 1. The user can specify the relative importance he gives the face
158 attributes width, height, weight, and slant by setting
159 face-font-selection-order (faces.el) to a list of face attribute
160 names. The default is '(:width :height :weight :slant), and means
161 that font selection first tries to find a good match for the font
162 width specified by a face, then---within fonts with that
163 width---tries to find a best match for the specified font height,
166 2. Setting face-font-family-alternatives allows the user to
167 specify alternative font families to try if a family specified by a
170 3. Setting face-font-registry-alternatives allows the user to
171 specify all alternative font registries to try for a face
172 specifying a registry.
174 4. Setting face-ignored-fonts allows the user to ignore specific
178 Character composition.
180 Usually, the realization process is already finished when Emacs
181 actually reflects the desired glyph matrix on the screen. However,
182 on displaying a composition (sequence of characters to be composed
183 on the screen), a suitable font for the components of the
184 composition is selected and realized while drawing them on the
185 screen, i.e. the realization process is delayed but in principle
189 Initialization of basic faces.
191 The faces `default', `modeline' are considered `basic faces'.
192 When redisplay happens the first time for a newly created frame,
193 basic faces are realized for CHARSET_ASCII. Frame parameters are
194 used to fill in unspecified attributes of the default face. */
198 #include <sys/types.h>
199 #include <sys/stat.h>
202 #include "character.h"
204 #include "keyboard.h"
207 #ifdef HAVE_WINDOW_SYSTEM
209 #endif /* HAVE_WINDOW_SYSTEM */
211 #ifdef HAVE_X_WINDOWS
215 #include <Xm/XmStrDefs.h>
216 #endif /* USE_MOTIF */
217 #endif /* HAVE_X_WINDOWS */
226 /* Redefine X specifics to W32 equivalents to avoid cluttering the
227 code with #ifdef blocks. */
228 #undef FRAME_X_DISPLAY_INFO
229 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
230 #define x_display_info w32_display_info
231 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
232 #define check_x check_w32
233 #define x_list_fonts w32_list_fonts
234 #define GCGraphicsExposures 0
235 #endif /* WINDOWSNT */
239 #define x_display_info mac_display_info
240 #define check_x check_mac
244 #include "dispextern.h"
245 #include "blockinput.h"
247 #include "intervals.h"
249 #ifdef HAVE_WINDOW_SYSTEM
250 #ifdef USE_FONT_BACKEND
252 #endif /* USE_FONT_BACKEND */
253 #endif /* HAVE_WINDOW_SYSTEM */
255 #ifdef HAVE_X_WINDOWS
257 /* Compensate for a bug in Xos.h on some systems, on which it requires
258 time.h. On some such systems, Xos.h tries to redefine struct
259 timeval and struct timezone if USG is #defined while it is
262 #ifdef XOS_NEEDS_TIME_H
268 #else /* not XOS_NEEDS_TIME_H */
270 #endif /* not XOS_NEEDS_TIME_H */
272 #endif /* HAVE_X_WINDOWS */
276 #define abs(X) ((X) < 0 ? -(X) : (X))
278 /* Number of pt per inch (from the TeXbook). */
280 #define PT_PER_INCH 72.27
282 /* Non-zero if face attribute ATTR is unspecified. */
284 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
286 /* Non-zero if face attribute ATTR is `ignore-defface'. */
288 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
290 /* Value is the number of elements of VECTOR. */
292 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
294 /* Make a copy of string S on the stack using alloca. Value is a pointer
297 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
299 /* Make a copy of the contents of Lisp string S on the stack using
300 alloca. Value is a pointer to the copy. */
302 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
304 /* Size of hash table of realized faces in face caches (should be a
307 #define FACE_CACHE_BUCKETS_SIZE 1001
309 /* Keyword symbols used for face attribute names. */
311 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
312 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
313 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
314 Lisp_Object QCreverse_video
;
315 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
316 Lisp_Object QCfontset
;
318 /* Symbols used for attribute values. */
320 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
321 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
322 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
323 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
324 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
325 Lisp_Object Qultra_expanded
;
326 Lisp_Object Qreleased_button
, Qpressed_button
;
327 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
328 Lisp_Object Qunspecified
;
329 Lisp_Object Qignore_defface
;
331 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
333 /* The name of the function to call when the background of the frame
334 has changed, frame_set_background_mode. */
336 Lisp_Object Qframe_set_background_mode
;
338 /* Names of basic faces. */
340 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
341 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
342 Lisp_Object Qmode_line_inactive
, Qvertical_border
;
343 extern Lisp_Object Qmode_line
;
345 /* The symbol `face-alias'. A symbols having that property is an
346 alias for another face. Value of the property is the name of
349 Lisp_Object Qface_alias
;
351 extern Lisp_Object Qcircular_list
;
353 /* Default stipple pattern used on monochrome displays. This stipple
354 pattern is used on monochrome displays instead of shades of gray
355 for a face background color. See `set-face-stipple' for possible
356 values for this variable. */
358 Lisp_Object Vface_default_stipple
;
360 /* Alist of alternative font families. Each element is of the form
361 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
362 try FAMILY1, then FAMILY2, ... */
364 Lisp_Object Vface_alternative_font_family_alist
;
366 /* Alist of alternative font registries. Each element is of the form
367 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
368 loaded, try REGISTRY1, then REGISTRY2, ... */
370 Lisp_Object Vface_alternative_font_registry_alist
;
372 /* Allowed scalable fonts. A value of nil means don't allow any
373 scalable fonts. A value of t means allow the use of any scalable
374 font. Otherwise, value must be a list of regular expressions. A
375 font may be scaled if its name matches a regular expression in the
378 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
380 /* List of regular expressions that matches names of fonts to ignore. */
382 Lisp_Object Vface_ignored_fonts
;
384 /* Alist of font name patterns vs the rescaling factor. */
386 Lisp_Object Vface_font_rescale_alist
;
388 /* Maximum number of fonts to consider in font_list. If not an
389 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
391 Lisp_Object Vfont_list_limit
;
392 #define DEFAULT_FONT_LIST_LIMIT 100
394 /* The symbols `foreground-color' and `background-color' which can be
395 used as part of a `face' property. This is for compatibility with
398 Lisp_Object Qforeground_color
, Qbackground_color
;
400 /* The symbols `face' and `mouse-face' used as text properties. */
403 extern Lisp_Object Qmouse_face
;
405 /* Property for basic faces which other faces cannot inherit. */
407 Lisp_Object Qface_no_inherit
;
409 /* Error symbol for wrong_type_argument in load_pixmap. */
411 Lisp_Object Qbitmap_spec_p
;
413 /* Alist of global face definitions. Each element is of the form
414 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
415 is a Lisp vector of face attributes. These faces are used
416 to initialize faces for new frames. */
418 Lisp_Object Vface_new_frame_defaults
;
420 /* The next ID to assign to Lisp faces. */
422 static int next_lface_id
;
424 /* A vector mapping Lisp face Id's to face names. */
426 static Lisp_Object
*lface_id_to_name
;
427 static int lface_id_to_name_size
;
429 /* TTY color-related functions (defined in tty-colors.el). */
431 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
433 /* The name of the function used to compute colors on TTYs. */
435 Lisp_Object Qtty_color_alist
;
437 /* An alist of defined terminal colors and their RGB values. */
439 Lisp_Object Vtty_defined_color_alist
;
441 /* Counter for calls to clear_face_cache. If this counter reaches
442 CLEAR_FONT_TABLE_COUNT, and a frame has more than
443 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
445 static int clear_font_table_count
;
446 #define CLEAR_FONT_TABLE_COUNT 100
447 #define CLEAR_FONT_TABLE_NFONTS 10
449 /* Non-zero means face attributes have been changed since the last
450 redisplay. Used in redisplay_internal. */
452 int face_change_count
;
454 /* Non-zero means don't display bold text if a face's foreground
455 and background colors are the inverse of the default colors of the
456 display. This is a kluge to suppress `bold black' foreground text
457 which is hard to read on an LCD monitor. */
459 int tty_suppress_bold_inverse_default_colors_p
;
461 /* A list of the form `((x . y))' used to avoid consing in
462 Finternal_set_lisp_face_attribute. */
464 static Lisp_Object Vparam_value_alist
;
466 /* The total number of colors currently allocated. */
469 static int ncolors_allocated
;
470 static int npixmaps_allocated
;
474 /* Non-zero means the definition of the `menu' face for new frames has
477 int menu_face_changed_default
;
480 /* Function prototypes. */
484 struct named_merge_point
;
486 static void map_tty_color
P_ ((struct frame
*, struct face
*,
487 enum lface_attribute_index
, int *));
488 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
, int));
489 static int may_use_scalable_font_p
P_ ((const char *));
490 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
491 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
493 static int x_face_list_fonts
P_ ((struct frame
*, char *,
494 struct font_name
**, int, int));
495 static int font_scalable_p
P_ ((struct font_name
*));
496 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
497 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
498 static unsigned char *xstrlwr
P_ ((unsigned char *));
499 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
500 static void load_face_font
P_ ((struct frame
*, struct face
*));
501 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
502 static void free_face_colors
P_ ((struct frame
*, struct face
*));
503 static int face_color_gray_p
P_ ((struct frame
*, char *));
504 static char *build_font_name
P_ ((struct font_name
*));
505 static void free_font_names
P_ ((struct font_name
*, int));
506 static int sorted_font_list
P_ ((struct frame
*, char *,
507 int (*cmpfn
) P_ ((const void *, const void *)),
508 struct font_name
**));
509 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
510 Lisp_Object
, struct font_name
**));
511 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
512 Lisp_Object
, struct font_name
**));
513 static int try_font_list
P_ ((struct frame
*, Lisp_Object
,
514 Lisp_Object
, Lisp_Object
, struct font_name
**));
515 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
516 Lisp_Object
, struct font_name
**));
517 static int cmp_font_names
P_ ((const void *, const void *));
518 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*,
520 static struct face
*realize_non_ascii_face
P_ ((struct frame
*, int,
522 static struct face
*realize_x_face
P_ ((struct face_cache
*, Lisp_Object
*));
523 static struct face
*realize_tty_face
P_ ((struct face_cache
*, Lisp_Object
*));
524 static int realize_basic_faces
P_ ((struct frame
*));
525 static int realize_default_face
P_ ((struct frame
*));
526 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
527 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
528 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
529 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
530 static unsigned lface_hash
P_ ((Lisp_Object
*));
531 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
532 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
533 static void clear_face_gcs
P_ ((struct face_cache
*));
534 static void free_face_cache
P_ ((struct face_cache
*));
535 static int face_numeric_weight
P_ ((Lisp_Object
));
536 static int face_numeric_slant
P_ ((Lisp_Object
));
537 static int face_numeric_swidth
P_ ((Lisp_Object
));
538 static int face_fontset
P_ ((Lisp_Object
*));
539 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
540 struct named_merge_point
*));
541 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
542 int, struct named_merge_point
*));
543 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
544 Lisp_Object
, int, int));
545 static void set_lface_from_font_and_fontset
P_ ((struct frame
*, Lisp_Object
,
546 Lisp_Object
, int, int));
547 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
548 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
549 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
550 struct font_name
*, int, int, int *));
551 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
552 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
553 static int xlfd_numeric_slant
P_ ((struct font_name
*));
554 static int xlfd_numeric_weight
P_ ((struct font_name
*));
555 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
556 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
557 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
558 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
559 static int xlfd_fixed_p
P_ ((struct font_name
*));
560 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
562 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
563 struct font_name
*, int,
565 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
566 struct font_name
*, int));
568 #ifdef HAVE_WINDOW_SYSTEM
570 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
571 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
572 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
573 int (*cmpfn
) P_ ((const void *, const void *))));
574 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
575 static void x_free_gc
P_ ((struct frame
*, GC
));
576 static void clear_font_table
P_ ((struct x_display_info
*));
579 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
580 #endif /* WINDOWSNT */
583 static void x_update_menu_appearance
P_ ((struct frame
*));
585 extern void free_frame_menubar
P_ ((struct frame
*));
586 #endif /* USE_X_TOOLKIT */
588 #endif /* HAVE_WINDOW_SYSTEM */
591 /***********************************************************************
593 ***********************************************************************/
595 #ifdef HAVE_X_WINDOWS
597 #ifdef DEBUG_X_COLORS
599 /* The following is a poor mans infrastructure for debugging X color
600 allocation problems on displays with PseudoColor-8. Some X servers
601 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
602 color reference counts completely so that they don't signal an
603 error when a color is freed whose reference count is already 0.
604 Other X servers do. To help me debug this, the following code
605 implements a simple reference counting schema of its own, for a
606 single display/screen. --gerd. */
608 /* Reference counts for pixel colors. */
610 int color_count
[256];
612 /* Register color PIXEL as allocated. */
615 register_color (pixel
)
618 xassert (pixel
< 256);
619 ++color_count
[pixel
];
623 /* Register color PIXEL as deallocated. */
626 unregister_color (pixel
)
629 xassert (pixel
< 256);
630 if (color_count
[pixel
] > 0)
631 --color_count
[pixel
];
637 /* Register N colors from PIXELS as deallocated. */
640 unregister_colors (pixels
, n
)
641 unsigned long *pixels
;
645 for (i
= 0; i
< n
; ++i
)
646 unregister_color (pixels
[i
]);
650 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
651 doc
: /* Dump currently allocated colors to stderr. */)
656 fputc ('\n', stderr
);
658 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
661 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
664 fputc ('\n', stderr
);
666 fputc ('\t', stderr
);
670 fputc ('\n', stderr
);
674 #endif /* DEBUG_X_COLORS */
677 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
678 color values. Interrupt input must be blocked when this function
682 x_free_colors (f
, pixels
, npixels
)
684 unsigned long *pixels
;
687 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
689 /* If display has an immutable color map, freeing colors is not
690 necessary and some servers don't allow it. So don't do it. */
691 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
693 #ifdef DEBUG_X_COLORS
694 unregister_colors (pixels
, npixels
);
696 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
702 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
703 color values. Interrupt input must be blocked when this function
707 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
711 unsigned long *pixels
;
714 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
715 int class = dpyinfo
->visual
->class;
717 /* If display has an immutable color map, freeing colors is not
718 necessary and some servers don't allow it. So don't do it. */
719 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
721 #ifdef DEBUG_X_COLORS
722 unregister_colors (pixels
, npixels
);
724 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
729 /* Create and return a GC for use on frame F. GC values and mask
730 are given by XGCV and MASK. */
733 x_create_gc (f
, mask
, xgcv
)
740 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
747 /* Free GC which was used on frame F. */
755 IF_DEBUG (xassert (--ngcs
>= 0));
756 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
760 #endif /* HAVE_X_WINDOWS */
763 /* W32 emulation of GCs */
766 x_create_gc (f
, mask
, xgcv
)
773 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
780 /* Free GC which was used on frame F. */
788 IF_DEBUG (xassert (--ngcs
>= 0));
793 #endif /* WINDOWSNT */
796 /* Mac OS emulation of GCs */
799 x_create_gc (f
, mask
, xgcv
)
806 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
818 IF_DEBUG (xassert (--ngcs
>= 0));
819 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
825 /* Like stricmp. Used to compare parts of font names which are in
830 const unsigned char *s1
, *s2
;
834 unsigned char c1
= tolower (*s1
);
835 unsigned char c2
= tolower (*s2
);
837 return c1
< c2
? -1 : 1;
842 return *s2
== 0 ? 0 : -1;
847 /* Like strlwr, which might not always be available. */
849 static unsigned char *
853 unsigned char *p
= s
;
856 /* On Mac OS X 10.3, tolower also converts non-ASCII characters
865 /* If FRAME is nil, return a pointer to the selected frame.
866 Otherwise, check that FRAME is a live frame, and return a pointer
867 to it. NPARAM is the parameter number of FRAME, for
868 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
869 Lisp function definitions. */
871 static INLINE
struct frame
*
872 frame_or_selected_frame (frame
, nparam
)
877 frame
= selected_frame
;
879 CHECK_LIVE_FRAME (frame
);
880 return XFRAME (frame
);
884 /***********************************************************************
886 ***********************************************************************/
888 /* Initialize face cache and basic faces for frame F. */
894 /* Make a face cache, if F doesn't have one. */
895 if (FRAME_FACE_CACHE (f
) == NULL
)
896 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
898 #ifdef HAVE_WINDOW_SYSTEM
899 /* Make the image cache. */
900 if (FRAME_WINDOW_P (f
))
902 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
903 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
904 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
906 #endif /* HAVE_WINDOW_SYSTEM */
908 /* Realize basic faces. Must have enough information in frame
909 parameters to realize basic faces at this point. */
910 #ifdef HAVE_X_WINDOWS
911 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
914 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
917 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
919 if (!realize_basic_faces (f
))
924 /* Free face cache of frame F. Called from Fdelete_frame. */
930 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
934 free_face_cache (face_cache
);
935 FRAME_FACE_CACHE (f
) = NULL
;
938 #ifdef HAVE_WINDOW_SYSTEM
939 if (FRAME_WINDOW_P (f
))
941 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
944 --image_cache
->refcount
;
945 if (image_cache
->refcount
== 0)
946 free_image_cache (f
);
949 #endif /* HAVE_WINDOW_SYSTEM */
953 /* Clear face caches, and recompute basic faces for frame F. Call
954 this after changing frame parameters on which those faces depend,
955 or when realized faces have been freed due to changing attributes
959 recompute_basic_faces (f
)
962 if (FRAME_FACE_CACHE (f
))
964 clear_face_cache (0);
965 if (!realize_basic_faces (f
))
971 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
972 try to free unused fonts, too. */
975 clear_face_cache (clear_fonts_p
)
978 #ifdef HAVE_WINDOW_SYSTEM
979 Lisp_Object tail
, frame
;
983 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
985 struct x_display_info
*dpyinfo
;
987 #ifdef USE_FONT_BACKEND
988 if (! enable_font_backend
)
989 #endif /* USE_FONT_BACKEND */
990 /* Fonts are common for frames on one display, i.e. on
992 for (dpyinfo
= x_display_list
; dpyinfo
; dpyinfo
= dpyinfo
->next
)
993 if (dpyinfo
->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
994 clear_font_table (dpyinfo
);
996 /* From time to time see if we can unload some fonts. This also
997 frees all realized faces on all frames. Fonts needed by
998 faces will be loaded again when faces are realized again. */
999 clear_font_table_count
= 0;
1001 FOR_EACH_FRAME (tail
, frame
)
1003 struct frame
*f
= XFRAME (frame
);
1004 if (FRAME_WINDOW_P (f
)
1005 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
1006 free_all_realized_faces (frame
);
1011 /* Clear GCs of realized faces. */
1012 FOR_EACH_FRAME (tail
, frame
)
1015 if (FRAME_WINDOW_P (f
))
1017 clear_face_gcs (FRAME_FACE_CACHE (f
));
1018 clear_image_cache (f
, 0);
1022 #endif /* HAVE_WINDOW_SYSTEM */
1026 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1027 doc
: /* Clear face caches on all frames.
1028 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
1030 Lisp_Object thoroughly
;
1032 clear_face_cache (!NILP (thoroughly
));
1033 ++face_change_count
;
1034 ++windows_or_buffers_changed
;
1040 #ifdef HAVE_WINDOW_SYSTEM
1043 /* Remove fonts from the font table of DPYINFO except for the default
1044 ASCII fonts of frames on that display. Called from clear_face_cache
1045 from time to time. */
1048 clear_font_table (dpyinfo
)
1049 struct x_display_info
*dpyinfo
;
1053 /* Free those fonts that are not used by frames on DPYINFO. */
1054 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1056 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1057 Lisp_Object tail
, frame
;
1059 /* Check if slot is already free. */
1060 if (font_info
->name
== NULL
)
1063 /* Don't free a default font of some frame. */
1064 FOR_EACH_FRAME (tail
, frame
)
1066 struct frame
*f
= XFRAME (frame
);
1067 if (FRAME_WINDOW_P (f
)
1068 && font_info
->font
== FRAME_FONT (f
))
1076 if (font_info
->full_name
!= font_info
->name
)
1077 xfree (font_info
->full_name
);
1078 xfree (font_info
->name
);
1080 /* Free the font. */
1082 #ifdef HAVE_X_WINDOWS
1083 XFreeFont (dpyinfo
->display
, font_info
->font
);
1086 w32_unload_font (dpyinfo
, font_info
->font
);
1089 mac_unload_font (dpyinfo
, font_info
->font
);
1093 /* Mark font table slot free. */
1094 font_info
->font
= NULL
;
1095 font_info
->name
= font_info
->full_name
= NULL
;
1099 #endif /* HAVE_WINDOW_SYSTEM */
1103 /***********************************************************************
1105 ***********************************************************************/
1107 #ifdef HAVE_WINDOW_SYSTEM
1109 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1110 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1111 A bitmap specification is either a string, a file name, or a list
1112 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1113 HEIGHT is its height, and DATA is a string containing the bits of
1114 the pixmap. Bits are stored row by row, each row occupies
1115 \(WIDTH + 7)/8 bytes. */)
1121 if (STRINGP (object
))
1122 /* If OBJECT is a string, it's a file name. */
1124 else if (CONSP (object
))
1126 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1127 HEIGHT must be integers > 0, and DATA must be string large
1128 enough to hold a bitmap of the specified size. */
1129 Lisp_Object width
, height
, data
;
1131 height
= width
= data
= Qnil
;
1135 width
= XCAR (object
);
1136 object
= XCDR (object
);
1139 height
= XCAR (object
);
1140 object
= XCDR (object
);
1142 data
= XCAR (object
);
1146 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1148 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1150 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1155 return pixmap_p
? Qt
: Qnil
;
1159 /* Load a bitmap according to NAME (which is either a file name or a
1160 pixmap spec) for use on frame F. Value is the bitmap_id (see
1161 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1162 bitmap cannot be loaded, display a message saying so, and return
1163 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1164 if these pointers are not null. */
1167 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1170 unsigned int *w_ptr
, *h_ptr
;
1177 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
1182 /* Decode a bitmap spec into a bitmap. */
1187 w
= XINT (Fcar (name
));
1188 h
= XINT (Fcar (Fcdr (name
)));
1189 bits
= Fcar (Fcdr (Fcdr (name
)));
1191 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1196 /* It must be a string -- a file name. */
1197 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1203 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1214 ++npixmaps_allocated
;
1217 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1220 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1226 #endif /* HAVE_WINDOW_SYSTEM */
1230 /***********************************************************************
1232 ***********************************************************************/
1234 #ifdef HAVE_WINDOW_SYSTEM
1236 /* Load font of face FACE which is used on frame F to display ASCII
1237 characters. The name of the font to load is determined by lface. */
1240 load_face_font (f
, face
)
1244 struct font_info
*font_info
= NULL
;
1246 int needs_overstrike
;
1248 #ifdef USE_FONT_BACKEND
1249 if (enable_font_backend
)
1251 #endif /* USE_FONT_BACKEND */
1252 face
->font_info_id
= -1;
1254 face
->font_name
= NULL
;
1256 font_name
= choose_face_font (f
, face
->lface
, Qnil
, &needs_overstrike
);
1261 font_info
= FS_LOAD_FONT (f
, font_name
);
1266 face
->font_info_id
= font_info
->font_idx
;
1267 face
->font
= font_info
->font
;
1268 face
->font_name
= font_info
->full_name
;
1269 face
->overstrike
= needs_overstrike
;
1272 x_free_gc (f
, face
->gc
);
1277 add_to_log ("Unable to load font %s",
1278 build_string (font_name
), Qnil
);
1282 #endif /* HAVE_WINDOW_SYSTEM */
1286 /***********************************************************************
1288 ***********************************************************************/
1290 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1291 RGB_LIST should contain (at least) 3 lisp integers.
1292 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1295 parse_rgb_list (rgb_list
, color
)
1296 Lisp_Object rgb_list
;
1299 #define PARSE_RGB_LIST_FIELD(field) \
1300 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1302 color->field = XINT (XCAR (rgb_list)); \
1303 rgb_list = XCDR (rgb_list); \
1308 PARSE_RGB_LIST_FIELD (red
);
1309 PARSE_RGB_LIST_FIELD (green
);
1310 PARSE_RGB_LIST_FIELD (blue
);
1316 /* Lookup on frame F the color described by the lisp string COLOR.
1317 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1318 non-zero, then the `standard' definition of the same color is
1322 tty_lookup_color (f
, color
, tty_color
, std_color
)
1325 XColor
*tty_color
, *std_color
;
1327 Lisp_Object frame
, color_desc
;
1329 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1332 XSETFRAME (frame
, f
);
1334 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1335 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1339 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1342 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1344 rgb
= XCDR (XCDR (color_desc
));
1345 if (! parse_rgb_list (rgb
, tty_color
))
1348 /* Should we fill in STD_COLOR too? */
1351 /* Default STD_COLOR to the same as TTY_COLOR. */
1352 *std_color
= *tty_color
;
1354 /* Do a quick check to see if the returned descriptor is
1355 actually _exactly_ equal to COLOR, otherwise we have to
1356 lookup STD_COLOR separately. If it's impossible to lookup
1357 a standard color, we just give up and use TTY_COLOR. */
1358 if ((!STRINGP (XCAR (color_desc
))
1359 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1360 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1362 /* Look up STD_COLOR separately. */
1363 rgb
= call1 (Qtty_color_standard_values
, color
);
1364 if (! parse_rgb_list (rgb
, std_color
))
1371 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1372 /* We were called early during startup, and the colors are not
1373 yet set up in tty-defined-color-alist. Don't return a failure
1374 indication, since this produces the annoying "Unable to
1375 load color" messages in the *Messages* buffer. */
1378 /* tty-color-desc seems to have returned a bad value. */
1382 /* A version of defined_color for non-X frames. */
1385 tty_defined_color (f
, color_name
, color_def
, alloc
)
1394 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1396 color_def
->blue
= 0;
1397 color_def
->green
= 0;
1400 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1402 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1404 if (strcmp (color_name
, "unspecified-fg") == 0)
1405 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1406 else if (strcmp (color_name
, "unspecified-bg") == 0)
1407 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1410 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1417 /* Decide if color named COLOR_NAME is valid for the display
1418 associated with the frame F; if so, return the rgb values in
1419 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1421 This does the right thing for any type of frame. */
1424 defined_color (f
, color_name
, color_def
, alloc
)
1430 if (!FRAME_WINDOW_P (f
))
1431 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1432 #ifdef HAVE_X_WINDOWS
1433 else if (FRAME_X_P (f
))
1434 return x_defined_color (f
, color_name
, color_def
, alloc
);
1437 else if (FRAME_W32_P (f
))
1438 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1441 else if (FRAME_MAC_P (f
))
1442 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1449 /* Given the index IDX of a tty color on frame F, return its name, a
1453 tty_color_name (f
, idx
)
1457 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1460 Lisp_Object coldesc
;
1462 XSETFRAME (frame
, f
);
1463 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1465 if (!NILP (coldesc
))
1466 return XCAR (coldesc
);
1469 /* We can have an MSDOG frame under -nw for a short window of
1470 opportunity before internal_terminal_init is called. DTRT. */
1471 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1472 return msdos_stdcolor_name (idx
);
1475 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1476 return build_string (unspecified_fg
);
1477 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1478 return build_string (unspecified_bg
);
1481 return vga_stdcolor_name (idx
);
1484 return Qunspecified
;
1488 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1491 The criterion implemented here is not a terribly sophisticated one. */
1494 face_color_gray_p (f
, color_name
)
1501 if (defined_color (f
, color_name
, &color
, 0))
1502 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1503 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1505 ((abs (color
.red
- color
.green
)
1506 < max (color
.red
, color
.green
) / 20)
1507 && (abs (color
.green
- color
.blue
)
1508 < max (color
.green
, color
.blue
) / 20)
1509 && (abs (color
.blue
- color
.red
)
1510 < max (color
.blue
, color
.red
) / 20)));
1518 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1519 BACKGROUND_P non-zero means the color will be used as background
1523 face_color_supported_p (f
, color_name
, background_p
)
1531 XSETFRAME (frame
, f
);
1533 #ifdef HAVE_WINDOW_SYSTEM
1535 ? (!NILP (Fxw_display_color_p (frame
))
1536 || xstricmp (color_name
, "black") == 0
1537 || xstricmp (color_name
, "white") == 0
1539 && face_color_gray_p (f
, color_name
))
1540 || (!NILP (Fx_display_grayscale_p (frame
))
1541 && face_color_gray_p (f
, color_name
)))
1544 tty_defined_color (f
, color_name
, ¬_used
, 0);
1548 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1549 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1550 FRAME specifies the frame and thus the display for interpreting COLOR.
1551 If FRAME is nil or omitted, use the selected frame. */)
1553 Lisp_Object color
, frame
;
1557 CHECK_STRING (color
);
1559 frame
= selected_frame
;
1561 CHECK_FRAME (frame
);
1563 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1567 DEFUN ("color-supported-p", Fcolor_supported_p
,
1568 Scolor_supported_p
, 1, 3, 0,
1569 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1570 BACKGROUND-P non-nil means COLOR is used as a background.
1571 Otherwise, this function tells whether it can be used as a foreground.
1572 If FRAME is nil or omitted, use the selected frame.
1573 COLOR must be a valid color name. */)
1574 (color
, frame
, background_p
)
1575 Lisp_Object frame
, color
, background_p
;
1579 CHECK_STRING (color
);
1581 frame
= selected_frame
;
1583 CHECK_FRAME (frame
);
1585 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1591 /* Load color with name NAME for use by face FACE on frame F.
1592 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1593 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1594 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1595 pixel color. If color cannot be loaded, display a message, and
1596 return the foreground, background or underline color of F, but
1597 record that fact in flags of the face so that we don't try to free
1601 load_color (f
, face
, name
, target_index
)
1605 enum lface_attribute_index target_index
;
1609 xassert (STRINGP (name
));
1610 xassert (target_index
== LFACE_FOREGROUND_INDEX
1611 || target_index
== LFACE_BACKGROUND_INDEX
1612 || target_index
== LFACE_UNDERLINE_INDEX
1613 || target_index
== LFACE_OVERLINE_INDEX
1614 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1615 || target_index
== LFACE_BOX_INDEX
);
1617 /* if the color map is full, defined_color will return a best match
1618 to the values in an existing cell. */
1619 if (!defined_color (f
, SDATA (name
), &color
, 1))
1621 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1623 switch (target_index
)
1625 case LFACE_FOREGROUND_INDEX
:
1626 face
->foreground_defaulted_p
= 1;
1627 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1630 case LFACE_BACKGROUND_INDEX
:
1631 face
->background_defaulted_p
= 1;
1632 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1635 case LFACE_UNDERLINE_INDEX
:
1636 face
->underline_defaulted_p
= 1;
1637 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1640 case LFACE_OVERLINE_INDEX
:
1641 face
->overline_color_defaulted_p
= 1;
1642 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1645 case LFACE_STRIKE_THROUGH_INDEX
:
1646 face
->strike_through_color_defaulted_p
= 1;
1647 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1650 case LFACE_BOX_INDEX
:
1651 face
->box_color_defaulted_p
= 1;
1652 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1661 ++ncolors_allocated
;
1668 #ifdef HAVE_WINDOW_SYSTEM
1670 /* Load colors for face FACE which is used on frame F. Colors are
1671 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1672 of ATTRS. If the background color specified is not supported on F,
1673 try to emulate gray colors with a stipple from Vface_default_stipple. */
1676 load_face_colors (f
, face
, attrs
)
1683 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1684 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1686 /* Swap colors if face is inverse-video. */
1687 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1695 /* Check for support for foreground, not for background because
1696 face_color_supported_p is smart enough to know that grays are
1697 "supported" as background because we are supposed to use stipple
1699 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1700 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1702 x_destroy_bitmap (f
, face
->stipple
);
1703 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1704 &face
->pixmap_w
, &face
->pixmap_h
);
1707 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1708 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1712 /* Free color PIXEL on frame F. */
1715 unload_color (f
, pixel
)
1717 unsigned long pixel
;
1719 #ifdef HAVE_X_WINDOWS
1723 x_free_colors (f
, &pixel
, 1);
1730 /* Free colors allocated for FACE. */
1733 free_face_colors (f
, face
)
1737 #ifdef HAVE_X_WINDOWS
1738 if (face
->colors_copied_bitwise_p
)
1743 if (!face
->foreground_defaulted_p
)
1745 x_free_colors (f
, &face
->foreground
, 1);
1746 IF_DEBUG (--ncolors_allocated
);
1749 if (!face
->background_defaulted_p
)
1751 x_free_colors (f
, &face
->background
, 1);
1752 IF_DEBUG (--ncolors_allocated
);
1755 if (face
->underline_p
1756 && !face
->underline_defaulted_p
)
1758 x_free_colors (f
, &face
->underline_color
, 1);
1759 IF_DEBUG (--ncolors_allocated
);
1762 if (face
->overline_p
1763 && !face
->overline_color_defaulted_p
)
1765 x_free_colors (f
, &face
->overline_color
, 1);
1766 IF_DEBUG (--ncolors_allocated
);
1769 if (face
->strike_through_p
1770 && !face
->strike_through_color_defaulted_p
)
1772 x_free_colors (f
, &face
->strike_through_color
, 1);
1773 IF_DEBUG (--ncolors_allocated
);
1776 if (face
->box
!= FACE_NO_BOX
1777 && !face
->box_color_defaulted_p
)
1779 x_free_colors (f
, &face
->box_color
, 1);
1780 IF_DEBUG (--ncolors_allocated
);
1784 #endif /* HAVE_X_WINDOWS */
1787 #endif /* HAVE_WINDOW_SYSTEM */
1791 /***********************************************************************
1793 ***********************************************************************/
1795 /* An enumerator for each field of an XLFD font name. */
1816 /* An enumerator for each possible slant value of a font. Taken from
1817 the XLFD specification. */
1825 XLFD_SLANT_REVERSE_ITALIC
,
1826 XLFD_SLANT_REVERSE_OBLIQUE
,
1830 /* Relative font weight according to XLFD documentation. */
1834 XLFD_WEIGHT_UNKNOWN
,
1835 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1836 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1837 XLFD_WEIGHT_LIGHT
, /* 30 */
1838 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1839 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1840 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1841 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1842 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1843 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1846 /* Relative proportionate width. */
1850 XLFD_SWIDTH_UNKNOWN
,
1851 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1852 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1853 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1854 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1855 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1856 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1857 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1858 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1859 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1862 /* Structure used for tables mapping XLFD weight, slant, and width
1863 names to numeric and symbolic values. */
1869 Lisp_Object
*symbol
;
1872 /* Table of XLFD slant names and their numeric and symbolic
1873 representations. This table must be sorted by slant names in
1876 static struct table_entry slant_table
[] =
1878 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1879 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1880 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1881 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1882 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1883 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1886 /* Table of XLFD weight names. This table must be sorted by weight
1887 names in ascending order. */
1889 static struct table_entry weight_table
[] =
1891 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1892 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1893 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1894 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1895 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1896 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1897 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1898 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1899 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1900 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1901 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1902 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1903 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1904 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1905 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1906 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1909 /* Table of XLFD width names. This table must be sorted by width
1910 names in ascending order. */
1912 static struct table_entry swidth_table
[] =
1914 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1915 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1916 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1917 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1918 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1919 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1920 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1921 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1922 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1923 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1924 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1925 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1926 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1927 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1928 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1931 /* Structure used to hold the result of splitting font names in XLFD
1932 format into their fields. */
1936 /* The original name which is modified destructively by
1937 split_font_name. The pointer is kept here to be able to free it
1938 if it was allocated from the heap. */
1941 /* Font name fields. Each vector element points into `name' above.
1942 Fields are NUL-terminated. */
1943 char *fields
[XLFD_LAST
];
1945 /* Numeric values for those fields that interest us. See
1946 split_font_name for which these are. */
1947 int numeric
[XLFD_LAST
];
1949 /* If the original name matches one of Vface_font_rescale_alist,
1950 the value is the corresponding rescale ratio. Otherwise, the
1952 double rescale_ratio
;
1954 /* Lower value mean higher priority. */
1955 int registry_priority
;
1958 /* The frame in effect when sorting font names. Set temporarily in
1959 sort_fonts so that it is available in font comparison functions. */
1961 static struct frame
*font_frame
;
1963 /* Order by which font selection chooses fonts. The default values
1964 mean `first, find a best match for the font width, then for the
1965 font height, then for weight, then for slant.' This variable can be
1966 set via set-face-font-sort-order. */
1969 static int font_sort_order
[4] = {
1970 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1973 static int font_sort_order
[4];
1976 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1977 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1978 is a pointer to the matching table entry or null if no table entry
1981 static struct table_entry
*
1982 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1983 struct table_entry
*table
;
1985 struct font_name
*font
;
1988 /* Function split_font_name converts fields to lower-case, so there
1989 is no need to use xstrlwr or xstricmp here. */
1990 char *s
= font
->fields
[field_index
];
1991 int low
, mid
, high
, cmp
;
1998 mid
= (low
+ high
) / 2;
1999 cmp
= strcmp (table
[mid
].name
, s
);
2013 /* Return a numeric representation for font name field
2014 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2015 has DIM entries. Value is the numeric value found or DFLT if no
2016 table entry matches. This function is used to translate weight,
2017 slant, and swidth names of XLFD font names to numeric values. */
2020 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
2021 struct table_entry
*table
;
2023 struct font_name
*font
;
2027 struct table_entry
*p
;
2028 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2029 return p
? p
->numeric
: dflt
;
2033 /* Return a symbolic representation for font name field
2034 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2035 has DIM entries. Value is the symbolic value found or DFLT if no
2036 table entry matches. This function is used to translate weight,
2037 slant, and swidth names of XLFD font names to symbols. */
2039 static INLINE Lisp_Object
2040 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2041 struct table_entry
*table
;
2043 struct font_name
*font
;
2047 struct table_entry
*p
;
2048 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2049 return p
? *p
->symbol
: dflt
;
2053 /* Return a numeric value for the slant of the font given by FONT. */
2056 xlfd_numeric_slant (font
)
2057 struct font_name
*font
;
2059 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2060 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2064 /* Return a symbol representing the weight of the font given by FONT. */
2066 static INLINE Lisp_Object
2067 xlfd_symbolic_slant (font
)
2068 struct font_name
*font
;
2070 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2071 font
, XLFD_SLANT
, Qnormal
);
2075 /* Return a numeric value for the weight of the font given by FONT. */
2078 xlfd_numeric_weight (font
)
2079 struct font_name
*font
;
2081 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2082 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2086 /* Return a symbol representing the slant of the font given by FONT. */
2088 static INLINE Lisp_Object
2089 xlfd_symbolic_weight (font
)
2090 struct font_name
*font
;
2092 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2093 font
, XLFD_WEIGHT
, Qnormal
);
2097 /* Return a numeric value for the swidth of the font whose XLFD font
2098 name fields are found in FONT. */
2101 xlfd_numeric_swidth (font
)
2102 struct font_name
*font
;
2104 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2105 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2109 /* Return a symbolic value for the swidth of FONT. */
2111 static INLINE Lisp_Object
2112 xlfd_symbolic_swidth (font
)
2113 struct font_name
*font
;
2115 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2116 font
, XLFD_SWIDTH
, Qnormal
);
2120 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2121 entries. Value is a pointer to the matching table entry or null if
2122 no element of TABLE contains SYMBOL. */
2124 static struct table_entry
*
2125 face_value (table
, dim
, symbol
)
2126 struct table_entry
*table
;
2132 xassert (SYMBOLP (symbol
));
2134 for (i
= 0; i
< dim
; ++i
)
2135 if (EQ (*table
[i
].symbol
, symbol
))
2138 return i
< dim
? table
+ i
: NULL
;
2142 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2143 entries. Value is -1 if SYMBOL is not found in TABLE. */
2146 face_numeric_value (table
, dim
, symbol
)
2147 struct table_entry
*table
;
2151 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2152 return p
? p
->numeric
: -1;
2156 /* Return a numeric value representing the weight specified by Lisp
2157 symbol WEIGHT. Value is one of the enumerators of enum
2161 face_numeric_weight (weight
)
2164 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2168 /* Return a numeric value representing the slant specified by Lisp
2169 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2172 face_numeric_slant (slant
)
2175 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2179 /* Return a numeric value representing the swidth specified by Lisp
2180 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2183 face_numeric_swidth (width
)
2186 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2189 #ifdef HAVE_WINDOW_SYSTEM
2191 #ifdef USE_FONT_BACKEND
2192 static INLINE Lisp_Object
2193 face_symbolic_value (table
, dim
, font_prop
)
2194 struct table_entry
*table
;
2196 Lisp_Object font_prop
;
2198 struct table_entry
*p
;
2199 char *s
= SDATA (SYMBOL_NAME (font_prop
));
2200 int low
, mid
, high
, cmp
;
2207 mid
= (low
+ high
) / 2;
2208 cmp
= strcmp (table
[mid
].name
, s
);
2215 return *table
[mid
].symbol
;
2221 static INLINE Lisp_Object
2222 face_symbolic_weight (weight
)
2225 return face_symbolic_value (weight_table
, DIM (weight_table
), weight
);
2228 static INLINE Lisp_Object
2229 face_symbolic_slant (slant
)
2232 return face_symbolic_value (slant_table
, DIM (slant_table
), slant
);
2235 static INLINE Lisp_Object
2236 face_symbolic_swidth (width
)
2239 return face_symbolic_value (swidth_table
, DIM (swidth_table
), width
);
2241 #endif /* USE_FONT_BACKEND */
2244 split_font_name_into_vector (fontname
)
2245 Lisp_Object fontname
;
2247 struct font_name font
;
2251 font
.name
= LSTRDUPA (fontname
);
2252 if (! split_font_name (NULL
, &font
, 0))
2254 vec
= Fmake_vector (make_number (XLFD_LAST
), Qnil
);
2255 for (i
= 0; i
< XLFD_LAST
; i
++)
2256 if (font
.fields
[i
][0] != '*')
2257 ASET (vec
, i
, build_string (font
.fields
[i
]));
2262 build_font_name_from_vector (vec
)
2265 struct font_name font
;
2266 Lisp_Object fontname
;
2270 for (i
= 0; i
< XLFD_LAST
; i
++)
2272 font
.fields
[i
] = (NILP (AREF (vec
, i
))
2273 ? "*" : (char *) SDATA (AREF (vec
, i
)));
2274 if ((i
== XLFD_FAMILY
|| i
== XLFD_REGISTRY
)
2275 && (p
= strchr (font
.fields
[i
], '-')))
2277 char *p1
= STRDUPA (font
.fields
[i
]);
2279 p1
[p
- font
.fields
[i
]] = '\0';
2280 if (i
== XLFD_FAMILY
)
2282 font
.fields
[XLFD_FOUNDRY
] = p1
;
2283 font
.fields
[XLFD_FAMILY
] = p
+ 1;
2287 font
.fields
[XLFD_REGISTRY
] = p1
;
2288 font
.fields
[XLFD_ENCODING
] = p
+ 1;
2294 p
= build_font_name (&font
);
2295 fontname
= build_string (p
);
2300 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2304 struct font_name
*font
;
2306 /* Function split_font_name converts fields to lower-case, so there
2307 is no need to use tolower here. */
2308 return *font
->fields
[XLFD_SPACING
] != 'p';
2312 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2314 The actual height of the font when displayed on F depends on the
2315 resolution of both the font and frame. For example, a 10pt font
2316 designed for a 100dpi display will display larger than 10pt on a
2317 75dpi display. (It's not unusual to use fonts not designed for the
2318 display one is using. For example, some intlfonts are available in
2319 72dpi versions, only.)
2321 Value is the real point size of FONT on frame F, or 0 if it cannot
2324 By side effect, set FONT->numeric[XLFD_PIXEL_SIZE]. */
2327 xlfd_point_size (f
, font
)
2329 struct font_name
*font
;
2331 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2332 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2336 if (*pixel_field
== '[')
2338 /* The pixel size field is `[A B C D]' which specifies
2339 a transformation matrix.
2345 by which all glyphs of the font are transformed. The spec
2346 says that s scalar value N for the pixel size is equivalent
2347 to A = N * resx/resy, B = C = 0, D = N. */
2348 char *start
= pixel_field
+ 1, *end
;
2352 for (i
= 0; i
< 4; ++i
)
2354 matrix
[i
] = strtod (start
, &end
);
2361 pixel
= atoi (pixel_field
);
2363 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel
;
2367 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2373 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2374 of frame F. This function is used to guess a point size of font
2375 when only the pixel height of the font is available. */
2378 pixel_point_size (f
, pixel
)
2382 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2386 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2387 point size of one dot. */
2388 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2389 int_pt
= real_pt
+ 0.5;
2395 /* Return a rescaling ratio of a font of NAME. */
2398 font_rescale_ratio (name
)
2401 Lisp_Object tail
, elt
;
2403 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2406 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2407 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2408 return XFLOAT_DATA (XCDR (elt
));
2414 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2415 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2416 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2417 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2418 zero if the font name doesn't have the format we expect. The
2419 expected format is a font name that starts with a `-' and has
2420 XLFD_LAST fields separated by `-'. */
2423 split_font_name (f
, font
, numeric_p
)
2425 struct font_name
*font
;
2430 double rescale_ratio
;
2433 /* This must be done before splitting the font name. */
2434 rescale_ratio
= font_rescale_ratio (font
->name
);
2436 if (*font
->name
== '-')
2438 char *p
= xstrlwr (font
->name
) + 1;
2440 while (i
< XLFD_LAST
)
2442 font
->fields
[i
] = p
;
2445 /* Pixel and point size may be of the form `[....]'. For
2446 BNF, see XLFD spec, chapter 4. Negative values are
2447 indicated by tilde characters which we replace with
2448 `-' characters, here. */
2450 && (i
- 1 == XLFD_PIXEL_SIZE
2451 || i
- 1 == XLFD_POINT_SIZE
))
2456 for (++p
; *p
&& *p
!= ']'; ++p
)
2460 /* Check that the matrix contains 4 floating point
2462 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2465 if (strtod (start
, &end
) == 0 && start
== end
)
2472 while (*p
&& *p
!= '-')
2482 success_p
= i
== XLFD_LAST
;
2484 /* If requested, and font name was in the expected format,
2485 compute numeric values for some fields. */
2486 if (numeric_p
&& success_p
)
2488 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2489 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2490 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2491 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2492 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2493 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2494 font
->rescale_ratio
= rescale_ratio
;
2497 /* Initialize it to zero. It will be overridden by font_list while
2498 trying alternate registries. */
2499 font
->registry_priority
= 0;
2505 /* Build an XLFD font name from font name fields in FONT. Value is a
2506 pointer to the font name, which is allocated via xmalloc. */
2509 build_font_name (font
)
2510 struct font_name
*font
;
2514 char *font_name
= (char *) xmalloc (size
);
2515 int total_length
= 0;
2517 for (i
= 0; i
< XLFD_LAST
; ++i
)
2519 /* Add 1 because of the leading `-'. */
2520 int len
= strlen (font
->fields
[i
]) + 1;
2522 /* Reallocate font_name if necessary. Add 1 for the final
2524 if (total_length
+ len
+ 1 >= size
)
2526 int new_size
= max (2 * size
, size
+ len
+ 1);
2527 int sz
= new_size
* sizeof *font_name
;
2528 font_name
= (char *) xrealloc (font_name
, sz
);
2532 font_name
[total_length
] = '-';
2533 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2534 total_length
+= len
;
2537 font_name
[total_length
] = 0;
2542 /* Free an array FONTS of N font_name structures. This frees FONTS
2543 itself and all `name' fields in its elements. */
2546 free_font_names (fonts
, n
)
2547 struct font_name
*fonts
;
2551 xfree (fonts
[--n
].name
);
2556 /* Sort vector FONTS of font_name structures which contains NFONTS
2557 elements using qsort and comparison function CMPFN. F is the frame
2558 on which the fonts will be used. The global variable font_frame
2559 is temporarily set to F to make it available in CMPFN. */
2562 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2564 struct font_name
*fonts
;
2566 int (*cmpfn
) P_ ((const void *, const void *));
2569 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2574 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2575 display in x_display_list. FONTS is a pointer to a vector of
2576 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2577 alternative patterns from Valternate_fontname_alist if no fonts are
2578 found matching PATTERN.
2580 For all fonts found, set FONTS[i].name to the name of the font,
2581 allocated via xmalloc, and split font names into fields. Ignore
2582 fonts that we can't parse. Value is the number of fonts found. */
2585 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2588 struct font_name
**pfonts
;
2589 int nfonts
, try_alternatives_p
;
2593 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2594 better to do it the other way around. */
2596 Lisp_Object lpattern
, tem
;
2597 struct font_name
*fonts
= 0;
2598 int num_fonts
= nfonts
;
2601 lpattern
= build_string (pattern
);
2603 /* Get the list of fonts matching PATTERN. */
2606 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2609 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2612 if (nfonts
< 0 && CONSP (lfonts
))
2613 num_fonts
= XFASTINT (Flength (lfonts
));
2615 /* Make a copy of the font names we got from X, and
2616 split them into fields. */
2618 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2620 Lisp_Object elt
, tail
;
2621 const char *name
= SDATA (XCAR (tem
));
2623 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2624 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2628 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2639 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2643 /* Make a copy of the font name. */
2644 fonts
[n
].name
= xstrdup (name
);
2646 if (split_font_name (f
, fonts
+ n
, 1))
2648 if (font_scalable_p (fonts
+ n
)
2649 && !may_use_scalable_font_p (name
))
2652 xfree (fonts
[n
].name
);
2658 xfree (fonts
[n
].name
);
2661 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2662 if (n
== 0 && try_alternatives_p
)
2664 Lisp_Object list
= Valternate_fontname_alist
;
2672 while (CONSP (list
))
2674 Lisp_Object entry
= XCAR (list
);
2676 && STRINGP (XCAR (entry
))
2677 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2684 Lisp_Object patterns
= XCAR (list
);
2687 while (CONSP (patterns
)
2688 /* If list is screwed up, give up. */
2689 && (name
= XCAR (patterns
),
2691 /* Ignore patterns equal to PATTERN because we tried that
2692 already with no success. */
2693 && (strcmp (SDATA (name
), pattern
) == 0
2694 || (n
= x_face_list_fonts (f
, SDATA (name
),
2697 patterns
= XCDR (patterns
);
2705 /* Check if a font matching pattern_offset_t on frame F is available
2706 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2707 a font name pattern is generated from FAMILY and REGISTRY. */
2710 face_font_available_p (f
, pattern
)
2712 Lisp_Object pattern
;
2716 if (! STRINGP (pattern
))
2718 Lisp_Object family
, registry
;
2719 char *family_str
, *registry_str
, *pattern_str
;
2721 CHECK_CONS (pattern
);
2722 family
= XCAR (pattern
);
2727 CHECK_STRING (family
);
2728 family_str
= (char *) SDATA (family
);
2730 registry
= XCDR (pattern
);
2731 if (NILP (registry
))
2735 CHECK_STRING (registry
);
2736 registry_str
= (char *) SDATA (registry
);
2739 pattern_str
= (char *) alloca (strlen (family_str
)
2740 + strlen (registry_str
)
2742 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2743 strcat (pattern_str
, family_str
);
2744 strcat (pattern_str
, "-*-");
2745 strcat (pattern_str
, registry_str
);
2746 if (!index (registry_str
, '-'))
2748 if (registry_str
[strlen (registry_str
) - 1] == '*')
2749 strcat (pattern_str
, "-*");
2751 strcat (pattern_str
, "*-*");
2753 pattern
= build_string (pattern_str
);
2756 /* Get the list of fonts matching PATTERN. */
2759 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2762 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2764 return XINT (Flength (fonts
));
2768 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2769 using comparison function CMPFN. Value is the number of fonts
2770 found. If value is non-zero, *FONTS is set to a vector of
2771 font_name structures allocated from the heap containing matching
2772 fonts. Each element of *FONTS contains a name member that is also
2773 allocated from the heap. Font names in these structures are split
2774 into fields. Use free_font_names to free such an array. */
2777 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2780 int (*cmpfn
) P_ ((const void *, const void *));
2781 struct font_name
**fonts
;
2785 /* Get the list of fonts matching pattern. 100 should suffice. */
2786 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2787 if (INTEGERP (Vfont_list_limit
))
2788 nfonts
= XINT (Vfont_list_limit
);
2791 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2793 /* Sort the resulting array and return it in *FONTS. If no
2794 fonts were found, make sure to set *FONTS to null. */
2796 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2807 /* Compare two font_name structures *A and *B. Value is analogous to
2808 strcmp. Sort order is given by the global variable
2809 font_sort_order. Font names are sorted so that, everything else
2810 being equal, fonts with a resolution closer to that of the frame on
2811 which they are used are listed first. The global variable
2812 font_frame is the frame on which we operate. */
2815 cmp_font_names (a
, b
)
2818 struct font_name
*x
= (struct font_name
*) a
;
2819 struct font_name
*y
= (struct font_name
*) b
;
2822 /* All strings have been converted to lower-case by split_font_name,
2823 so we can use strcmp here. */
2824 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2829 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2831 int j
= font_sort_order
[i
];
2832 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2837 /* Everything else being equal, we prefer fonts with an
2838 y-resolution closer to that of the frame. */
2839 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2840 int x_resy
= x
->numeric
[XLFD_RESY
];
2841 int y_resy
= y
->numeric
[XLFD_RESY
];
2842 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2850 /* Get a sorted list of fonts matching PATTERN on frame F. If PATTERN
2851 is nil, list fonts matching FAMILY and REGISTRY. FAMILY is a
2852 family name string or nil. REGISTRY is a registry name string.
2853 Set *FONTS to a vector of font_name structures allocated from the
2854 heap containing the fonts found. Value is the number of fonts
2858 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2860 Lisp_Object pattern
, family
, registry
;
2861 struct font_name
**fonts
;
2863 char *pattern_str
, *family_str
, *registry_str
;
2867 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2868 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2870 pattern_str
= (char *) alloca (strlen (family_str
)
2871 + strlen (registry_str
)
2873 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2874 strcat (pattern_str
, family_str
);
2875 strcat (pattern_str
, "-*-");
2876 strcat (pattern_str
, registry_str
);
2877 if (!index (registry_str
, '-'))
2879 if (registry_str
[strlen (registry_str
) - 1] == '*')
2880 strcat (pattern_str
, "-*");
2882 strcat (pattern_str
, "*-*");
2886 pattern_str
= (char *) SDATA (pattern
);
2888 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2892 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2893 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2894 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2897 static struct font_name
*
2898 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2899 struct font_name
*fonts1
, *fonts2
;
2900 int nfonts1
, nfonts2
;
2902 int new_nfonts
= nfonts1
+ nfonts2
;
2903 struct font_name
*new_fonts
;
2905 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2906 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2907 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2914 /* Get a sorted list of fonts of family FAMILY on frame F.
2916 If PATTERN is non-nil, list fonts matching that pattern.
2918 If REGISTRY is non-nil, it is a list of registry (and encoding)
2919 names. Return fonts with those registries and the alternative
2920 registries from Vface_alternative_font_registry_alist.
2922 If REGISTRY is nil return fonts of any registry.
2924 Set *FONTS to a vector of font_name structures allocated from the
2925 heap containing the fonts found. Value is the number of fonts
2929 font_list (f
, pattern
, family
, registry
, fonts
)
2931 Lisp_Object pattern
, family
, registry
;
2932 struct font_name
**fonts
;
2938 if (NILP (registry
))
2939 return font_list_1 (f
, pattern
, family
, registry
, fonts
);
2941 for (reg_prio
= 0, nfonts
= 0; CONSP (registry
); registry
= XCDR (registry
))
2943 Lisp_Object elt
, alter
;
2945 struct font_name
*fonts2
;
2947 elt
= XCAR (registry
);
2948 alter
= Fassoc (elt
, Vface_alternative_font_registry_alist
);
2950 alter
= Fcons (elt
, Qnil
);
2951 for (; CONSP (alter
); alter
= XCDR (alter
), reg_prio
++)
2953 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
), &fonts2
);
2957 for (i
= 0; i
< nfonts2
; i
++)
2958 fonts2
[i
].registry_priority
= reg_prio
;
2960 *fonts
= concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
);
2972 /* Remove elements from LIST whose cars are `equal'. Called from
2973 x-family-fonts and x-font-family-list to remove duplicate font
2977 remove_duplicates (list
)
2980 Lisp_Object tail
= list
;
2982 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2984 Lisp_Object next
= XCDR (tail
);
2985 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2986 XSETCDR (tail
, XCDR (next
));
2993 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2994 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2995 If FAMILY is omitted or nil, list all families.
2996 Otherwise, FAMILY must be a string, possibly containing wildcards
2998 If FRAME is omitted or nil, use the selected frame.
2999 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
3000 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
3001 FAMILY is the font family name. POINT-SIZE is the size of the
3002 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
3003 width, weight and slant of the font. These symbols are the same as for
3004 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
3005 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
3006 giving the registry and encoding of the font.
3007 The result list is sorted according to the current setting of
3008 the face font sort order. */)
3010 Lisp_Object family
, frame
;
3012 struct frame
*f
= check_x_frame (frame
);
3013 struct font_name
*fonts
;
3016 struct gcpro gcpro1
;
3019 CHECK_STRING (family
);
3023 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
3024 for (i
= nfonts
- 1; i
>= 0; --i
)
3026 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
3029 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
3030 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
3031 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
3032 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
3033 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
3034 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
3035 tem
= build_font_name (fonts
+ i
);
3036 ASET (v
, 6, build_string (tem
));
3037 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
3038 fonts
[i
].fields
[XLFD_ENCODING
]);
3039 ASET (v
, 7, build_string (tem
));
3042 result
= Fcons (v
, result
);
3045 remove_duplicates (result
);
3046 free_font_names (fonts
, nfonts
);
3052 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
3054 doc
: /* Return a list of available font families on FRAME.
3055 If FRAME is omitted or nil, use the selected frame.
3056 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
3057 is a font family, and FIXED-P is non-nil if fonts of that family
3058 are fixed-pitch. */)
3062 struct frame
*f
= check_x_frame (frame
);
3064 struct font_name
*fonts
;
3066 struct gcpro gcpro1
;
3067 int count
= SPECPDL_INDEX ();
3069 /* Let's consider all fonts. */
3070 specbind (intern ("font-list-limit"), make_number (-1));
3071 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
3075 for (i
= nfonts
- 1; i
>= 0; --i
)
3076 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
3077 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
3080 remove_duplicates (result
);
3081 free_font_names (fonts
, nfonts
);
3083 return unbind_to (count
, result
);
3087 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
3088 doc
: /* Return a list of the names of available fonts matching PATTERN.
3089 If optional arguments FACE and FRAME are specified, return only fonts
3090 the same size as FACE on FRAME.
3091 PATTERN is a string, perhaps with wildcard characters;
3092 the * character matches any substring, and
3093 the ? character matches any single character.
3094 PATTERN is case-insensitive.
3095 FACE is a face name--a symbol.
3097 The return value is a list of strings, suitable as arguments to
3100 Fonts Emacs can't use may or may not be excluded
3101 even if they match PATTERN and FACE.
3102 The optional fourth argument MAXIMUM sets a limit on how many
3103 fonts to match. The first MAXIMUM fonts are reported.
3104 The optional fifth argument WIDTH, if specified, is a number of columns
3105 occupied by a character of a font. In that case, return only fonts
3106 the WIDTH times as wide as FACE on FRAME. */)
3107 (pattern
, face
, frame
, maximum
, width
)
3108 Lisp_Object pattern
, face
, frame
, maximum
, width
;
3115 CHECK_STRING (pattern
);
3121 CHECK_NATNUM (maximum
);
3122 maxnames
= XINT (maximum
);
3126 CHECK_NUMBER (width
);
3128 /* We can't simply call check_x_frame because this function may be
3129 called before any frame is created. */
3130 f
= frame_or_selected_frame (frame
, 2);
3131 if (!FRAME_WINDOW_P (f
))
3133 /* Perhaps we have not yet created any frame. */
3138 /* Determine the width standard for comparison with the fonts we find. */
3144 /* This is of limited utility since it works with character
3145 widths. Keep it for compatibility. --gerd. */
3146 int face_id
= lookup_named_face (f
, face
, 0);
3147 struct face
*face
= (face_id
< 0
3149 : FACE_FROM_ID (f
, face_id
));
3151 if (face
&& face
->font
)
3152 size
= FONT_WIDTH (face
->font
);
3154 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3157 size
*= XINT (width
);
3161 Lisp_Object args
[2];
3163 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3165 /* We don't have to check fontsets. */
3167 args
[1] = list_fontsets (f
, pattern
, size
);
3168 return Fnconc (2, args
);
3172 #endif /* HAVE_WINDOW_SYSTEM */
3176 /***********************************************************************
3178 ***********************************************************************/
3180 /* Access face attributes of face LFACE, a Lisp vector. */
3182 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3183 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3184 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3185 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3186 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3187 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3188 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3189 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3190 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3191 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3192 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3193 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3194 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3195 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3196 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3197 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3198 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
3200 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3201 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3203 #define LFACEP(LFACE) \
3205 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3206 && EQ (AREF (LFACE, 0), Qface))
3211 /* Check consistency of Lisp face attribute vector ATTRS. */
3214 check_lface_attrs (attrs
)
3217 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3218 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
3219 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3220 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3221 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
3222 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3223 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3224 || IGNORE_DEFFACE_P (attrs
[LFACE_AVGWIDTH_INDEX
])
3225 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3226 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3227 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
3228 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3229 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3230 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3231 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3232 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
3233 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3234 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3235 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
3236 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3237 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3238 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
3239 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3240 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3241 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3242 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
3243 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3244 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3245 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3246 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3247 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3248 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3249 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3250 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
3251 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3252 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3253 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3254 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3255 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3256 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
3257 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3258 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3259 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
3260 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3261 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3262 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
3263 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3264 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3265 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
3266 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3267 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3268 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3269 #ifdef HAVE_WINDOW_SYSTEM
3270 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3271 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
3272 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3273 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3274 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3275 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
3276 || NILP (attrs
[LFACE_FONT_INDEX
])
3277 #ifdef USE_FONT_BACKEND
3278 || FONT_OBJECT_P (attrs
[LFACE_FONT_INDEX
])
3279 #endif /* USE_FONT_BACKEND */
3280 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3281 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
3282 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
3287 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3295 xassert (LFACEP (lface
));
3296 check_lface_attrs (XVECTOR (lface
)->contents
);
3300 #else /* GLYPH_DEBUG == 0 */
3302 #define check_lface_attrs(attrs) (void) 0
3303 #define check_lface(lface) (void) 0
3305 #endif /* GLYPH_DEBUG == 0 */
3309 /* Face-merge cycle checking. */
3311 /* A `named merge point' is simply a point during face-merging where we
3312 look up a face by name. We keep a stack of which named lookups we're
3313 currently processing so that we can easily detect cycles, using a
3314 linked- list of struct named_merge_point structures, typically
3315 allocated on the stack frame of the named lookup functions which are
3316 active (so no consing is required). */
3317 struct named_merge_point
3319 Lisp_Object face_name
;
3320 struct named_merge_point
*prev
;
3324 /* If a face merging cycle is detected for FACE_NAME, return 0,
3325 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3326 FACE_NAME, as the head of the linked list pointed to by
3327 NAMED_MERGE_POINTS, and return 1. */
3330 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3331 Lisp_Object face_name
,
3332 struct named_merge_point
**named_merge_points
)
3334 struct named_merge_point
*prev
;
3336 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3337 if (EQ (face_name
, prev
->face_name
))
3340 new_named_merge_point
->face_name
= face_name
;
3341 new_named_merge_point
->prev
= *named_merge_points
;
3343 *named_merge_points
= new_named_merge_point
;
3351 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3352 to make it a symbol. If FACE_NAME is an alias for another face,
3353 return that face's name.
3355 Return default face in case of errors. */
3358 resolve_face_name (face_name
, signal_p
)
3359 Lisp_Object face_name
;
3362 Lisp_Object orig_face
;
3363 Lisp_Object tortoise
, hare
;
3365 if (STRINGP (face_name
))
3366 face_name
= intern (SDATA (face_name
));
3368 if (NILP (face_name
) || !SYMBOLP (face_name
))
3371 orig_face
= face_name
;
3372 tortoise
= hare
= face_name
;
3377 hare
= Fget (hare
, Qface_alias
);
3378 if (NILP (hare
) || !SYMBOLP (hare
))
3382 hare
= Fget (hare
, Qface_alias
);
3383 if (NILP (hare
) || !SYMBOLP (hare
))
3386 tortoise
= Fget (tortoise
, Qface_alias
);
3387 if (EQ (hare
, tortoise
))
3390 xsignal1 (Qcircular_list
, orig_face
);
3399 /* Return the face definition of FACE_NAME on frame F. F null means
3400 return the definition for new frames. FACE_NAME may be a string or
3401 a symbol (apparently Emacs 20.2 allowed strings as face names in
3402 face text properties; Ediff uses that). If FACE_NAME is an alias
3403 for another face, return that face's definition. If SIGNAL_P is
3404 non-zero, signal an error if FACE_NAME is not a valid face name.
3405 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3408 static INLINE Lisp_Object
3409 lface_from_face_name (f
, face_name
, signal_p
)
3411 Lisp_Object face_name
;
3416 face_name
= resolve_face_name (face_name
, signal_p
);
3419 lface
= assq_no_quit (face_name
, f
->face_alist
);
3421 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3424 lface
= XCDR (lface
);
3426 signal_error ("Invalid face", face_name
);
3428 check_lface (lface
);
3433 /* Get face attributes of face FACE_NAME from frame-local faces on
3434 frame F. Store the resulting attributes in ATTRS which must point
3435 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3436 is non-zero, signal an error if FACE_NAME does not name a face.
3437 Otherwise, value is zero if FACE_NAME is not a face. */
3440 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3442 Lisp_Object face_name
;
3449 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3452 bcopy (XVECTOR (lface
)->contents
, attrs
,
3453 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3463 /* Non-zero if all attributes in face attribute vector ATTRS are
3464 specified, i.e. are non-nil. */
3467 lface_fully_specified_p (attrs
)
3472 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3473 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3474 && i
!= LFACE_AVGWIDTH_INDEX
&& i
!= LFACE_FONTSET_INDEX
)
3475 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
]))
3477 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3478 always unspecified. */
3479 && i
!= LFACE_STIPPLE_INDEX
3484 return i
== LFACE_VECTOR_SIZE
;
3487 #ifdef HAVE_WINDOW_SYSTEM
3489 /* Set font-related attributes of Lisp face LFACE from the fullname of
3490 the font opened by FONTNAME. If FORCE_P is zero, set only
3491 unspecified attributes of LFACE. The exception is `font'
3492 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3494 If FONTNAME is not available on frame F,
3495 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3496 If the fullname is not in a valid XLFD format,
3497 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3498 in LFACE and return 1.
3499 Otherwise, return 1. */
3502 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3505 Lisp_Object fontname
;
3506 int force_p
, may_fail_p
;
3508 struct font_name font
;
3513 char *font_name
= SDATA (fontname
);
3514 struct font_info
*font_info
;
3516 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3517 fontset
= fs_query_fontset (fontname
, 0);
3520 font_name
= SDATA (fontset_ascii (fontset
));
3521 else if (fontset
== 0)
3528 /* Check if FONT_NAME is surely available on the system. Usually
3529 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3530 returns quickly. But, even if FONT_NAME is not yet cached,
3531 caching it now is not futail because we anyway load the font
3534 font_info
= FS_LOAD_FONT (f
, font_name
);
3544 font
.name
= STRDUPA (font_info
->full_name
);
3545 have_xlfd_p
= split_font_name (f
, &font
, 1);
3547 /* Set attributes only if unspecified, otherwise face defaults for
3548 new frames would never take effect. If we couldn't get a font
3549 name conforming to XLFD, set normal values. */
3551 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3556 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3557 + strlen (font
.fields
[XLFD_FOUNDRY
])
3559 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3560 font
.fields
[XLFD_FAMILY
]);
3561 val
= build_string (buffer
);
3564 val
= build_string ("*");
3565 LFACE_FAMILY (lface
) = val
;
3568 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3571 pt
= xlfd_point_size (f
, &font
);
3573 pt
= pixel_point_size (f
, font_info
->height
* 10);
3575 LFACE_HEIGHT (lface
) = make_number (pt
);
3578 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3579 LFACE_SWIDTH (lface
)
3580 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3582 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3583 LFACE_AVGWIDTH (lface
)
3585 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3588 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3589 LFACE_WEIGHT (lface
)
3590 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3592 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3594 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3598 LFACE_FONT (lface
) = build_string (font_info
->full_name
);
3599 LFACE_FONTSET (lface
) = fontset_name (fontset
);
3603 LFACE_FONT (lface
) = fontname
;
3605 = new_fontset_from_font_name (build_string (font_info
->full_name
));
3606 LFACE_FONTSET (lface
) = fontset_name (fontset
);
3611 #ifdef USE_FONT_BACKEND
3612 /* Set font-related attributes of Lisp face LFACE from FONT-OBJECT and
3613 FONTSET. If FORCE_P is zero, set only unspecified attributes of
3614 LFACE. The exceptions are `font' and `fontset' attributes. They
3615 are set regardless of FORCE_P. */
3618 set_lface_from_font_and_fontset (f
, lface
, font_object
, fontset
, force_p
)
3620 Lisp_Object lface
, font_object
;
3624 struct font
*font
= XSAVE_VALUE (font_object
)->pointer
;
3625 Lisp_Object entity
= font
->entity
;
3628 /* Set attributes only if unspecified, otherwise face defaults for
3629 new frames would never take effect. If the font doesn't have a
3630 specific property, set a normal value for that. */
3632 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3634 Lisp_Object foundry
= AREF (entity
, FONT_FOUNDRY_INDEX
);
3635 Lisp_Object family
= AREF (entity
, FONT_FAMILY_INDEX
);
3637 if (! NILP (foundry
))
3639 if (! NILP (family
))
3640 val
= concat3 (SYMBOL_NAME (foundry
), build_string ("-"),
3641 SYMBOL_NAME (family
));
3643 val
= concat2 (SYMBOL_NAME (foundry
), build_string ("-*"));
3647 if (! NILP (family
))
3648 val
= SYMBOL_NAME (family
);
3650 val
= build_string ("*");
3652 LFACE_FAMILY (lface
) = val
;
3655 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3657 int pt
= pixel_point_size (f
, font
->pixel_size
* 10);
3660 LFACE_HEIGHT (lface
) = make_number (pt
);
3663 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3664 LFACE_AVGWIDTH (lface
) = make_number (font
->font
.average_width
);
3666 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3668 Lisp_Object weight
= font_symbolic_weight (entity
);
3670 val
= NILP (weight
) ? Qnormal
: face_symbolic_weight (weight
);
3671 LFACE_WEIGHT (lface
) = ! NILP (val
) ? val
: weight
;
3673 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3675 Lisp_Object slant
= font_symbolic_slant (entity
);
3677 val
= NILP (slant
) ? Qnormal
: face_symbolic_slant (slant
);
3678 LFACE_SLANT (lface
) = ! NILP (val
) ? val
: slant
;
3680 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3682 Lisp_Object width
= font_symbolic_width (entity
);
3684 val
= NILP (width
) ? Qnormal
: face_symbolic_swidth (width
);
3685 LFACE_SWIDTH (lface
) = ! NILP (val
) ? val
: width
;
3688 LFACE_FONT (lface
) = font_object
;
3689 LFACE_FONTSET (lface
) = fontset_name (fontset
);
3691 #endif /* USE_FONT_BACKEND */
3693 #endif /* HAVE_WINDOW_SYSTEM */
3696 /* Merges the face height FROM with the face height TO, and returns the
3697 merged height. If FROM is an invalid height, then INVALID is
3698 returned instead. FROM and TO may be either absolute face heights or
3699 `relative' heights; the returned value is always an absolute height
3700 unless both FROM and TO are relative. GCPRO is a lisp value that
3701 will be protected from garbage-collection if this function makes a
3705 merge_face_heights (from
, to
, invalid
)
3706 Lisp_Object from
, to
, invalid
;
3708 Lisp_Object result
= invalid
;
3710 if (INTEGERP (from
))
3711 /* FROM is absolute, just use it as is. */
3713 else if (FLOATP (from
))
3714 /* FROM is a scale, use it to adjust TO. */
3717 /* relative X absolute => absolute */
3718 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3719 else if (FLOATP (to
))
3720 /* relative X relative => relative */
3721 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3722 else if (UNSPECIFIEDP (to
))
3725 else if (FUNCTIONP (from
))
3726 /* FROM is a function, which use to adjust TO. */
3728 /* Call function with current height as argument.
3729 From is the new height. */
3730 Lisp_Object args
[2];
3734 result
= safe_call (2, args
);
3736 /* Ensure that if TO was absolute, so is the result. */
3737 if (INTEGERP (to
) && !INTEGERP (result
))
3745 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3746 store the resulting attributes in TO, which must be already be
3747 completely specified and contain only absolute attributes. Every
3748 specified attribute of FROM overrides the corresponding attribute of
3749 TO; relative attributes in FROM are merged with the absolute value in
3750 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3751 loops in face inheritance; it should be 0 when called from other
3755 merge_face_vectors (f
, from
, to
, named_merge_points
)
3757 Lisp_Object
*from
, *to
;
3758 struct named_merge_point
*named_merge_points
;
3762 /* If FROM inherits from some other faces, merge their attributes into
3763 TO before merging FROM's direct attributes. Note that an :inherit
3764 attribute of `unspecified' is the same as one of nil; we never
3765 merge :inherit attributes, so nil is more correct, but lots of
3766 other code uses `unspecified' as a generic value for face attributes. */
3767 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3768 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3769 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3771 /* If TO specifies a :font attribute, and FROM specifies some
3772 font-related attribute, we need to clear TO's :font attribute
3773 (because it will be inconsistent with whatever FROM specifies, and
3774 FROM takes precedence). */
3775 if (!NILP (to
[LFACE_FONT_INDEX
])
3776 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3777 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3778 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3779 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3780 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3781 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3782 to
[LFACE_FONT_INDEX
] = Qnil
;
3784 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3785 if (!UNSPECIFIEDP (from
[i
]))
3787 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3788 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
3793 /* TO is always an absolute face, which should inherit from nothing.
3794 We blindly copy the :inherit attribute above and fix it up here. */
3795 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3798 /* Merge the named face FACE_NAME on frame F, into the vector of face
3799 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3800 inheritance. Returns true if FACE_NAME is a valid face name and
3801 merging succeeded. */
3804 merge_named_face (f
, face_name
, to
, named_merge_points
)
3806 Lisp_Object face_name
;
3808 struct named_merge_point
*named_merge_points
;
3810 struct named_merge_point named_merge_point
;
3812 if (push_named_merge_point (&named_merge_point
,
3813 face_name
, &named_merge_points
))
3815 struct gcpro gcpro1
;
3816 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3817 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3821 GCPRO1 (named_merge_point
.face_name
);
3822 merge_face_vectors (f
, from
, to
, named_merge_points
);
3833 /* Merge face attributes from the lisp `face reference' FACE_REF on
3834 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3835 problems with FACE_REF cause an error message to be shown. Return
3836 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3837 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3838 list structure; it may be 0 for most callers.
3840 FACE_REF may be a single face specification or a list of such
3841 specifications. Each face specification can be:
3843 1. A symbol or string naming a Lisp face.
3845 2. A property list of the form (KEYWORD VALUE ...) where each
3846 KEYWORD is a face attribute name, and value is an appropriate value
3849 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3850 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3851 for compatibility with 20.2.
3853 Face specifications earlier in lists take precedence over later
3857 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3859 Lisp_Object face_ref
;
3862 struct named_merge_point
*named_merge_points
;
3864 int ok
= 1; /* Succeed without an error? */
3866 if (CONSP (face_ref
))
3868 Lisp_Object first
= XCAR (face_ref
);
3870 if (EQ (first
, Qforeground_color
)
3871 || EQ (first
, Qbackground_color
))
3873 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3874 . COLOR). COLOR must be a string. */
3875 Lisp_Object color_name
= XCDR (face_ref
);
3876 Lisp_Object color
= first
;
3878 if (STRINGP (color_name
))
3880 if (EQ (color
, Qforeground_color
))
3881 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3883 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3888 add_to_log ("Invalid face color", color_name
, Qnil
);
3892 else if (SYMBOLP (first
)
3893 && *SDATA (SYMBOL_NAME (first
)) == ':')
3895 /* Assume this is the property list form. */
3896 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3898 Lisp_Object keyword
= XCAR (face_ref
);
3899 Lisp_Object value
= XCAR (XCDR (face_ref
));
3902 /* Specifying `unspecified' is a no-op. */
3903 if (EQ (value
, Qunspecified
))
3905 else if (EQ (keyword
, QCfamily
))
3907 if (STRINGP (value
))
3908 to
[LFACE_FAMILY_INDEX
] = value
;
3912 else if (EQ (keyword
, QCheight
))
3914 Lisp_Object new_height
=
3915 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
3917 if (! NILP (new_height
))
3918 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3922 else if (EQ (keyword
, QCweight
))
3925 && face_numeric_weight (value
) >= 0)
3926 to
[LFACE_WEIGHT_INDEX
] = value
;
3930 else if (EQ (keyword
, QCslant
))
3933 && face_numeric_slant (value
) >= 0)
3934 to
[LFACE_SLANT_INDEX
] = value
;
3938 else if (EQ (keyword
, QCunderline
))
3943 to
[LFACE_UNDERLINE_INDEX
] = value
;
3947 else if (EQ (keyword
, QCoverline
))
3952 to
[LFACE_OVERLINE_INDEX
] = value
;
3956 else if (EQ (keyword
, QCstrike_through
))
3961 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3965 else if (EQ (keyword
, QCbox
))
3968 value
= make_number (1);
3969 if (INTEGERP (value
)
3973 to
[LFACE_BOX_INDEX
] = value
;
3977 else if (EQ (keyword
, QCinverse_video
)
3978 || EQ (keyword
, QCreverse_video
))
3980 if (EQ (value
, Qt
) || NILP (value
))
3981 to
[LFACE_INVERSE_INDEX
] = value
;
3985 else if (EQ (keyword
, QCforeground
))
3987 if (STRINGP (value
))
3988 to
[LFACE_FOREGROUND_INDEX
] = value
;
3992 else if (EQ (keyword
, QCbackground
))
3994 if (STRINGP (value
))
3995 to
[LFACE_BACKGROUND_INDEX
] = value
;
3999 else if (EQ (keyword
, QCstipple
))
4001 #ifdef HAVE_X_WINDOWS
4002 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
4003 if (!NILP (pixmap_p
))
4004 to
[LFACE_STIPPLE_INDEX
] = value
;
4009 else if (EQ (keyword
, QCwidth
))
4012 && face_numeric_swidth (value
) >= 0)
4013 to
[LFACE_SWIDTH_INDEX
] = value
;
4017 else if (EQ (keyword
, QCinherit
))
4019 /* This is not really very useful; it's just like a
4020 normal face reference. */
4021 if (! merge_face_ref (f
, value
, to
,
4022 err_msgs
, named_merge_points
))
4030 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
4034 face_ref
= XCDR (XCDR (face_ref
));
4039 /* This is a list of face refs. Those at the beginning of the
4040 list take precedence over what follows, so we have to merge
4041 from the end backwards. */
4042 Lisp_Object next
= XCDR (face_ref
);
4045 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
4047 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
4053 /* FACE_REF ought to be a face name. */
4054 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
4055 if (!ok
&& err_msgs
)
4056 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
4063 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
4064 Sinternal_make_lisp_face
, 1, 2, 0,
4065 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
4066 If FACE was not known as a face before, create a new one.
4067 If optional argument FRAME is specified, make a frame-local face
4068 for that frame. Otherwise operate on the global face definition.
4069 Value is a vector of face attributes. */)
4071 Lisp_Object face
, frame
;
4073 Lisp_Object global_lface
, lface
;
4077 CHECK_SYMBOL (face
);
4078 global_lface
= lface_from_face_name (NULL
, face
, 0);
4082 CHECK_LIVE_FRAME (frame
);
4084 lface
= lface_from_face_name (f
, face
, 0);
4087 f
= NULL
, lface
= Qnil
;
4089 /* Add a global definition if there is none. */
4090 if (NILP (global_lface
))
4092 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4094 AREF (global_lface
, 0) = Qface
;
4095 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
4096 Vface_new_frame_defaults
);
4098 /* Assign the new Lisp face a unique ID. The mapping from Lisp
4099 face id to Lisp face is given by the vector lface_id_to_name.
4100 The mapping from Lisp face to Lisp face id is given by the
4101 property `face' of the Lisp face name. */
4102 if (next_lface_id
== lface_id_to_name_size
)
4104 int new_size
= max (50, 2 * lface_id_to_name_size
);
4105 int sz
= new_size
* sizeof *lface_id_to_name
;
4106 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
4107 lface_id_to_name_size
= new_size
;
4110 lface_id_to_name
[next_lface_id
] = face
;
4111 Fput (face
, Qface
, make_number (next_lface_id
));
4115 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4116 AREF (global_lface
, i
) = Qunspecified
;
4118 /* Add a frame-local definition. */
4123 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
4125 AREF (lface
, 0) = Qface
;
4126 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
4129 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4130 AREF (lface
, i
) = Qunspecified
;
4133 lface
= global_lface
;
4135 /* Changing a named face means that all realized faces depending on
4136 that face are invalid. Since we cannot tell which realized faces
4137 depend on the face, make sure they are all removed. This is done
4138 by incrementing face_change_count. The next call to
4139 init_iterator will then free realized faces. */
4140 if (NILP (Fget (face
, Qface_no_inherit
)))
4142 ++face_change_count
;
4143 ++windows_or_buffers_changed
;
4146 xassert (LFACEP (lface
));
4147 check_lface (lface
);
4152 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
4153 Sinternal_lisp_face_p
, 1, 2, 0,
4154 doc
: /* Return non-nil if FACE names a face.
4155 If optional second argument FRAME is non-nil, check for the
4156 existence of a frame-local face with name FACE on that frame.
4157 Otherwise check for the existence of a global face. */)
4159 Lisp_Object face
, frame
;
4163 face
= resolve_face_name (face
, 1);
4167 CHECK_LIVE_FRAME (frame
);
4168 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4171 lface
= lface_from_face_name (NULL
, face
, 0);
4177 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
4178 Sinternal_copy_lisp_face
, 4, 4, 0,
4179 doc
: /* Copy face FROM to TO.
4180 If FRAME is t, copy the global face definition of FROM.
4181 Otherwise, copy the frame-local definition of FROM on FRAME.
4182 If NEW-FRAME is a frame, copy that data into the frame-local
4183 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
4184 FRAME controls where the data is copied to.
4186 The value is TO. */)
4187 (from
, to
, frame
, new_frame
)
4188 Lisp_Object from
, to
, frame
, new_frame
;
4190 Lisp_Object lface
, copy
;
4192 CHECK_SYMBOL (from
);
4197 /* Copy global definition of FROM. We don't make copies of
4198 strings etc. because 20.2 didn't do it either. */
4199 lface
= lface_from_face_name (NULL
, from
, 1);
4200 copy
= Finternal_make_lisp_face (to
, Qnil
);
4204 /* Copy frame-local definition of FROM. */
4205 if (NILP (new_frame
))
4207 CHECK_LIVE_FRAME (frame
);
4208 CHECK_LIVE_FRAME (new_frame
);
4209 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
4210 copy
= Finternal_make_lisp_face (to
, new_frame
);
4213 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
4214 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
4216 /* Changing a named face means that all realized faces depending on
4217 that face are invalid. Since we cannot tell which realized faces
4218 depend on the face, make sure they are all removed. This is done
4219 by incrementing face_change_count. The next call to
4220 init_iterator will then free realized faces. */
4221 if (NILP (Fget (to
, Qface_no_inherit
)))
4223 ++face_change_count
;
4224 ++windows_or_buffers_changed
;
4231 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
4232 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
4233 doc
: /* Set attribute ATTR of FACE to VALUE.
4234 FRAME being a frame means change the face on that frame.
4235 FRAME nil means change the face of the selected frame.
4236 FRAME t means change the default for new frames.
4237 FRAME 0 means change the face on all frames, and change the default
4239 (face
, attr
, value
, frame
)
4240 Lisp_Object face
, attr
, value
, frame
;
4243 Lisp_Object old_value
= Qnil
;
4244 /* Set 1 if ATTR is QCfont. */
4245 int font_attr_p
= 0;
4246 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
4247 int font_related_attr_p
= 0;
4249 CHECK_SYMBOL (face
);
4250 CHECK_SYMBOL (attr
);
4252 face
= resolve_face_name (face
, 1);
4254 /* If FRAME is 0, change face on all frames, and change the
4255 default for new frames. */
4256 if (INTEGERP (frame
) && XINT (frame
) == 0)
4259 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
4260 FOR_EACH_FRAME (tail
, frame
)
4261 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4265 /* Set lface to the Lisp attribute vector of FACE. */
4268 lface
= lface_from_face_name (NULL
, face
, 1);
4270 /* When updating face-new-frame-defaults, we put :ignore-defface
4271 where the caller wants `unspecified'. This forces the frame
4272 defaults to ignore the defface value. Otherwise, the defface
4273 will take effect, which is generally not what is intended.
4274 The value of that attribute will be inherited from some other
4275 face during face merging. See internal_merge_in_global_face. */
4276 if (UNSPECIFIEDP (value
))
4277 value
= Qignore_defface
;
4282 frame
= selected_frame
;
4284 CHECK_LIVE_FRAME (frame
);
4285 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4287 /* If a frame-local face doesn't exist yet, create one. */
4289 lface
= Finternal_make_lisp_face (face
, frame
);
4292 if (EQ (attr
, QCfamily
))
4294 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4296 CHECK_STRING (value
);
4297 if (SCHARS (value
) == 0)
4298 signal_error ("Invalid face family", value
);
4300 old_value
= LFACE_FAMILY (lface
);
4301 LFACE_FAMILY (lface
) = value
;
4302 font_related_attr_p
= 1;
4304 else if (EQ (attr
, QCheight
))
4306 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4310 test
= (EQ (face
, Qdefault
)
4312 /* The default face must have an absolute size,
4313 otherwise, we do a test merge with a random
4314 height to see if VALUE's ok. */
4315 : merge_face_heights (value
, make_number (10), Qnil
));
4317 if (!INTEGERP (test
) || XINT (test
) <= 0)
4318 signal_error ("Invalid face height", value
);
4321 old_value
= LFACE_HEIGHT (lface
);
4322 LFACE_HEIGHT (lface
) = value
;
4323 font_related_attr_p
= 1;
4325 else if (EQ (attr
, QCweight
))
4327 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4329 CHECK_SYMBOL (value
);
4330 if (face_numeric_weight (value
) < 0)
4331 signal_error ("Invalid face weight", value
);
4333 old_value
= LFACE_WEIGHT (lface
);
4334 LFACE_WEIGHT (lface
) = value
;
4335 font_related_attr_p
= 1;
4337 else if (EQ (attr
, QCslant
))
4339 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4341 CHECK_SYMBOL (value
);
4342 if (face_numeric_slant (value
) < 0)
4343 signal_error ("Invalid face slant", value
);
4345 old_value
= LFACE_SLANT (lface
);
4346 LFACE_SLANT (lface
) = value
;
4347 font_related_attr_p
= 1;
4349 else if (EQ (attr
, QCunderline
))
4351 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4352 if ((SYMBOLP (value
)
4354 && !EQ (value
, Qnil
))
4355 /* Underline color. */
4357 && SCHARS (value
) == 0))
4358 signal_error ("Invalid face underline", value
);
4360 old_value
= LFACE_UNDERLINE (lface
);
4361 LFACE_UNDERLINE (lface
) = value
;
4363 else if (EQ (attr
, QCoverline
))
4365 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4366 if ((SYMBOLP (value
)
4368 && !EQ (value
, Qnil
))
4369 /* Overline color. */
4371 && SCHARS (value
) == 0))
4372 signal_error ("Invalid face overline", value
);
4374 old_value
= LFACE_OVERLINE (lface
);
4375 LFACE_OVERLINE (lface
) = value
;
4377 else if (EQ (attr
, QCstrike_through
))
4379 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4380 if ((SYMBOLP (value
)
4382 && !EQ (value
, Qnil
))
4383 /* Strike-through color. */
4385 && SCHARS (value
) == 0))
4386 signal_error ("Invalid face strike-through", value
);
4388 old_value
= LFACE_STRIKE_THROUGH (lface
);
4389 LFACE_STRIKE_THROUGH (lface
) = value
;
4391 else if (EQ (attr
, QCbox
))
4395 /* Allow t meaning a simple box of width 1 in foreground color
4398 value
= make_number (1);
4400 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
4402 else if (NILP (value
))
4404 else if (INTEGERP (value
))
4405 valid_p
= XINT (value
) != 0;
4406 else if (STRINGP (value
))
4407 valid_p
= SCHARS (value
) > 0;
4408 else if (CONSP (value
))
4424 if (EQ (k
, QCline_width
))
4426 if (!INTEGERP (v
) || XINT (v
) == 0)
4429 else if (EQ (k
, QCcolor
))
4431 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
4434 else if (EQ (k
, QCstyle
))
4436 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4443 valid_p
= NILP (tem
);
4449 signal_error ("Invalid face box", value
);
4451 old_value
= LFACE_BOX (lface
);
4452 LFACE_BOX (lface
) = value
;
4454 else if (EQ (attr
, QCinverse_video
)
4455 || EQ (attr
, QCreverse_video
))
4457 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4459 CHECK_SYMBOL (value
);
4460 if (!EQ (value
, Qt
) && !NILP (value
))
4461 signal_error ("Invalid inverse-video face attribute value", value
);
4463 old_value
= LFACE_INVERSE (lface
);
4464 LFACE_INVERSE (lface
) = value
;
4466 else if (EQ (attr
, QCforeground
))
4468 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4470 /* Don't check for valid color names here because it depends
4471 on the frame (display) whether the color will be valid
4472 when the face is realized. */
4473 CHECK_STRING (value
);
4474 if (SCHARS (value
) == 0)
4475 signal_error ("Empty foreground color value", value
);
4477 old_value
= LFACE_FOREGROUND (lface
);
4478 LFACE_FOREGROUND (lface
) = value
;
4480 else if (EQ (attr
, QCbackground
))
4482 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4484 /* Don't check for valid color names here because it depends
4485 on the frame (display) whether the color will be valid
4486 when the face is realized. */
4487 CHECK_STRING (value
);
4488 if (SCHARS (value
) == 0)
4489 signal_error ("Empty background color value", value
);
4491 old_value
= LFACE_BACKGROUND (lface
);
4492 LFACE_BACKGROUND (lface
) = value
;
4494 else if (EQ (attr
, QCstipple
))
4496 #ifdef HAVE_X_WINDOWS
4497 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
4499 && NILP (Fbitmap_spec_p (value
)))
4500 signal_error ("Invalid stipple attribute", value
);
4501 old_value
= LFACE_STIPPLE (lface
);
4502 LFACE_STIPPLE (lface
) = value
;
4503 #endif /* HAVE_X_WINDOWS */
4505 else if (EQ (attr
, QCwidth
))
4507 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4509 CHECK_SYMBOL (value
);
4510 if (face_numeric_swidth (value
) < 0)
4511 signal_error ("Invalid face width", value
);
4513 old_value
= LFACE_SWIDTH (lface
);
4514 LFACE_SWIDTH (lface
) = value
;
4515 font_related_attr_p
= 1;
4517 else if (EQ (attr
, QCfont
) || EQ (attr
, QCfontset
))
4519 #ifdef HAVE_WINDOW_SYSTEM
4520 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4522 /* Set font-related attributes of the Lisp face from an XLFD
4528 f
= SELECTED_FRAME ();
4530 f
= check_x_frame (frame
);
4532 #ifdef USE_FONT_BACKEND
4533 if (enable_font_backend
4534 && !UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4538 if (EQ (attr
, QCfontset
))
4540 Lisp_Object fontset_name
= Fquery_fontset (value
, Qnil
);
4542 if (NILP (fontset_name
))
4543 signal_error ("Invalid fontset name", value
);
4544 LFACE_FONTSET (lface
) = value
;
4548 Lisp_Object font_object
;
4550 if (FONT_OBJECT_P (value
))
4552 font_object
= value
;
4553 fontset
= FRAME_FONTSET (f
);
4557 CHECK_STRING (value
);
4559 fontset
= fs_query_fontset (value
, 0);
4561 value
= fontset_ascii (fontset
);
4563 fontset
= FRAME_FONTSET (f
);
4564 font_object
= font_open_by_name (f
, SDATA (value
));
4565 if (NILP (font_object
))
4566 signal_error ("Invalid font", value
);
4568 set_lface_from_font_and_fontset (f
, lface
, font_object
,
4573 #endif /* USE_FONT_BACKEND */
4574 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4576 CHECK_STRING (value
);
4578 /* VALUE may be a fontset name or an alias of fontset. In
4579 such a case, use the base fontset name. */
4580 tmp
= Fquery_fontset (value
, Qnil
);
4583 else if (EQ (attr
, QCfontset
))
4584 signal_error ("Invalid fontset name", value
);
4586 if (EQ (attr
, QCfont
))
4588 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4589 signal_error ("Invalid font or fontset name", value
);
4592 LFACE_FONTSET (lface
) = value
;
4597 #endif /* HAVE_WINDOW_SYSTEM */
4599 else if (EQ (attr
, QCinherit
))
4602 if (SYMBOLP (value
))
4605 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4606 if (!SYMBOLP (XCAR (tail
)))
4609 LFACE_INHERIT (lface
) = value
;
4611 signal_error ("Invalid face inheritance", value
);
4613 else if (EQ (attr
, QCbold
))
4615 old_value
= LFACE_WEIGHT (lface
);
4616 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4617 font_related_attr_p
= 1;
4619 else if (EQ (attr
, QCitalic
))
4621 old_value
= LFACE_SLANT (lface
);
4622 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4623 font_related_attr_p
= 1;
4626 signal_error ("Invalid face attribute name", attr
);
4628 if (font_related_attr_p
4629 && !UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4630 /* If a font-related attribute other than QCfont is specified, the
4631 original `font' attribute nor that of default face is useless
4632 to determine a new font. Thus, we set it to nil so that font
4633 selection mechanism doesn't use it. */
4634 LFACE_FONT (lface
) = Qnil
;
4636 /* Changing a named face means that all realized faces depending on
4637 that face are invalid. Since we cannot tell which realized faces
4638 depend on the face, make sure they are all removed. This is done
4639 by incrementing face_change_count. The next call to
4640 init_iterator will then free realized faces. */
4642 && NILP (Fget (face
, Qface_no_inherit
))
4643 && (EQ (attr
, QCfont
)
4644 || EQ (attr
, QCfontset
)
4645 || NILP (Fequal (old_value
, value
))))
4647 ++face_change_count
;
4648 ++windows_or_buffers_changed
;
4651 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
4652 && NILP (Fequal (old_value
, value
)))
4658 if (EQ (face
, Qdefault
))
4660 #ifdef HAVE_WINDOW_SYSTEM
4661 /* Changed font-related attributes of the `default' face are
4662 reflected in changed `font' frame parameters. */
4664 && (font_related_attr_p
|| font_attr_p
)
4665 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4666 set_font_frame_param (frame
, lface
);
4668 #endif /* HAVE_WINDOW_SYSTEM */
4670 if (EQ (attr
, QCforeground
))
4671 param
= Qforeground_color
;
4672 else if (EQ (attr
, QCbackground
))
4673 param
= Qbackground_color
;
4675 #ifdef HAVE_WINDOW_SYSTEM
4677 else if (EQ (face
, Qscroll_bar
))
4679 /* Changing the colors of `scroll-bar' sets frame parameters
4680 `scroll-bar-foreground' and `scroll-bar-background'. */
4681 if (EQ (attr
, QCforeground
))
4682 param
= Qscroll_bar_foreground
;
4683 else if (EQ (attr
, QCbackground
))
4684 param
= Qscroll_bar_background
;
4686 #endif /* not WINDOWSNT */
4687 else if (EQ (face
, Qborder
))
4689 /* Changing background color of `border' sets frame parameter
4691 if (EQ (attr
, QCbackground
))
4692 param
= Qborder_color
;
4694 else if (EQ (face
, Qcursor
))
4696 /* Changing background color of `cursor' sets frame parameter
4698 if (EQ (attr
, QCbackground
))
4699 param
= Qcursor_color
;
4701 else if (EQ (face
, Qmouse
))
4703 /* Changing background color of `mouse' sets frame parameter
4705 if (EQ (attr
, QCbackground
))
4706 param
= Qmouse_color
;
4708 #endif /* HAVE_WINDOW_SYSTEM */
4709 else if (EQ (face
, Qmenu
))
4711 /* Indicate that we have to update the menu bar when
4712 realizing faces on FRAME. FRAME t change the
4713 default for new frames. We do this by setting
4714 setting the flag in new face caches */
4717 struct frame
*f
= XFRAME (frame
);
4718 if (FRAME_FACE_CACHE (f
) == NULL
)
4719 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4720 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4723 menu_face_changed_default
= 1;
4729 /* Update `default-frame-alist', which is used for new frames. */
4731 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4734 /* Update the current frame's parameters. */
4737 cons
= XCAR (Vparam_value_alist
);
4738 XSETCAR (cons
, param
);
4739 XSETCDR (cons
, value
);
4740 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4749 #ifdef HAVE_WINDOW_SYSTEM
4751 /* Set the `font' frame parameter of FRAME determined from `default'
4752 face attributes LFACE. If a font name is explicitely
4753 specfied in LFACE, use it as is. Otherwise, determine a font name
4754 from the other font-related atrributes of LFACE. In that case, if
4755 there's no matching font, signals an error. */
4758 set_font_frame_param (frame
, lface
)
4759 Lisp_Object frame
, lface
;
4761 struct frame
*f
= XFRAME (frame
);
4763 if (FRAME_WINDOW_P (f
))
4765 Lisp_Object font_name
;
4768 if (STRINGP (LFACE_FONT (lface
)))
4769 font_name
= LFACE_FONT (lface
);
4770 #ifdef USE_FONT_BACKEND
4771 else if (enable_font_backend
)
4773 /* We set FONT_NAME to a font-object. */
4774 if (FONT_OBJECT_P (LFACE_FONT (lface
)))
4775 font_name
= LFACE_FONT (lface
);
4778 font_name
= font_find_for_lface (f
, &AREF (lface
, 0), Qnil
);
4779 if (NILP (font_name
))
4780 error ("No font matches the specified attribute");
4781 font_name
= font_open_for_lface (f
, font_name
, &AREF (lface
, 0),
4783 if (NILP (font_name
))
4784 error ("No font matches the specified attribute");
4790 /* Choose a font name that reflects LFACE's attributes and has
4791 the registry and encoding pattern specified in the default
4792 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4793 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, Qnil
, NULL
);
4795 error ("No font matches the specified attribute");
4796 font_name
= build_string (font
);
4800 f
->default_face_done_p
= 0;
4801 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4806 /* Update the corresponding face when frame parameter PARAM on frame F
4807 has been assigned the value NEW_VALUE. */
4810 update_face_from_frame_parameter (f
, param
, new_value
)
4812 Lisp_Object param
, new_value
;
4814 Lisp_Object face
= Qnil
;
4817 /* If there are no faces yet, give up. This is the case when called
4818 from Fx_create_frame, and we do the necessary things later in
4819 face-set-after-frame-defaults. */
4820 if (NILP (f
->face_alist
))
4823 if (EQ (param
, Qforeground_color
))
4826 lface
= lface_from_face_name (f
, face
, 1);
4827 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4828 ? new_value
: Qunspecified
);
4829 realize_basic_faces (f
);
4831 else if (EQ (param
, Qbackground_color
))
4835 /* Changing the background color might change the background
4836 mode, so that we have to load new defface specs.
4837 Call frame-set-background-mode to do that. */
4838 XSETFRAME (frame
, f
);
4839 call1 (Qframe_set_background_mode
, frame
);
4842 lface
= lface_from_face_name (f
, face
, 1);
4843 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4844 ? new_value
: Qunspecified
);
4845 realize_basic_faces (f
);
4847 else if (EQ (param
, Qborder_color
))
4850 lface
= lface_from_face_name (f
, face
, 1);
4851 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4852 ? new_value
: Qunspecified
);
4854 else if (EQ (param
, Qcursor_color
))
4857 lface
= lface_from_face_name (f
, face
, 1);
4858 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4859 ? new_value
: Qunspecified
);
4861 else if (EQ (param
, Qmouse_color
))
4864 lface
= lface_from_face_name (f
, face
, 1);
4865 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4866 ? new_value
: Qunspecified
);
4869 /* Changing a named face means that all realized faces depending on
4870 that face are invalid. Since we cannot tell which realized faces
4871 depend on the face, make sure they are all removed. This is done
4872 by incrementing face_change_count. The next call to
4873 init_iterator will then free realized faces. */
4875 && NILP (Fget (face
, Qface_no_inherit
)))
4877 ++face_change_count
;
4878 ++windows_or_buffers_changed
;
4883 /* Get the value of X resource RESOURCE, class CLASS for the display
4884 of frame FRAME. This is here because ordinary `x-get-resource'
4885 doesn't take a frame argument. */
4887 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4888 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4889 (resource
, class, frame
)
4890 Lisp_Object resource
, class, frame
;
4892 Lisp_Object value
= Qnil
;
4893 CHECK_STRING (resource
);
4894 CHECK_STRING (class);
4895 CHECK_LIVE_FRAME (frame
);
4897 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4898 resource
, class, Qnil
, Qnil
);
4904 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4905 If VALUE is "on" or "true", return t. If VALUE is "off" or
4906 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4907 error; if SIGNAL_P is zero, return 0. */
4910 face_boolean_x_resource_value (value
, signal_p
)
4914 Lisp_Object result
= make_number (0);
4916 xassert (STRINGP (value
));
4918 if (xstricmp (SDATA (value
), "on") == 0
4919 || xstricmp (SDATA (value
), "true") == 0)
4921 else if (xstricmp (SDATA (value
), "off") == 0
4922 || xstricmp (SDATA (value
), "false") == 0)
4924 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4925 result
= Qunspecified
;
4927 signal_error ("Invalid face attribute value from X resource", value
);
4933 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4934 Finternal_set_lisp_face_attribute_from_resource
,
4935 Sinternal_set_lisp_face_attribute_from_resource
,
4936 3, 4, 0, doc
: /* */)
4937 (face
, attr
, value
, frame
)
4938 Lisp_Object face
, attr
, value
, frame
;
4940 CHECK_SYMBOL (face
);
4941 CHECK_SYMBOL (attr
);
4942 CHECK_STRING (value
);
4944 if (xstricmp (SDATA (value
), "unspecified") == 0)
4945 value
= Qunspecified
;
4946 else if (EQ (attr
, QCheight
))
4948 value
= Fstring_to_number (value
, make_number (10));
4949 if (XINT (value
) <= 0)
4950 signal_error ("Invalid face height from X resource", value
);
4952 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4953 value
= face_boolean_x_resource_value (value
, 1);
4954 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4955 value
= intern (SDATA (value
));
4956 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4957 value
= face_boolean_x_resource_value (value
, 1);
4958 else if (EQ (attr
, QCunderline
)
4959 || EQ (attr
, QCoverline
)
4960 || EQ (attr
, QCstrike_through
))
4962 Lisp_Object boolean_value
;
4964 /* If the result of face_boolean_x_resource_value is t or nil,
4965 VALUE does NOT specify a color. */
4966 boolean_value
= face_boolean_x_resource_value (value
, 0);
4967 if (SYMBOLP (boolean_value
))
4968 value
= boolean_value
;
4970 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
4971 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4973 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4976 #endif /* HAVE_WINDOW_SYSTEM */
4979 /***********************************************************************
4981 ***********************************************************************/
4983 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4985 /* Make menus on frame F appear as specified by the `menu' face. */
4988 x_update_menu_appearance (f
)
4991 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4995 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4999 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
5000 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
5001 const char *myname
= SDATA (Vx_resource_name
);
5004 const char *popup_path
= "popup_menu";
5006 const char *popup_path
= "menu.popup";
5009 if (STRINGP (LFACE_FOREGROUND (lface
)))
5011 sprintf (line
, "%s.%s*foreground: %s",
5013 SDATA (LFACE_FOREGROUND (lface
)));
5014 XrmPutLineResource (&rdb
, line
);
5015 sprintf (line
, "%s.pane.menubar*foreground: %s",
5016 myname
, SDATA (LFACE_FOREGROUND (lface
)));
5017 XrmPutLineResource (&rdb
, line
);
5021 if (STRINGP (LFACE_BACKGROUND (lface
)))
5023 sprintf (line
, "%s.%s*background: %s",
5025 SDATA (LFACE_BACKGROUND (lface
)));
5026 XrmPutLineResource (&rdb
, line
);
5027 sprintf (line
, "%s.pane.menubar*background: %s",
5028 myname
, SDATA (LFACE_BACKGROUND (lface
)));
5029 XrmPutLineResource (&rdb
, line
);
5034 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
5035 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
5036 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
5037 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
5038 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
5039 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
5042 const char *suffix
= "List";
5045 #if defined HAVE_X_I18N
5047 const char *suffix
= "Set";
5049 const char *suffix
= "";
5053 #if defined HAVE_X_I18N
5054 extern char *xic_create_fontsetname
5055 P_ ((char *base_fontname
, Bool motif
));
5056 char *fontsetname
= xic_create_fontsetname (face
->font_name
, motif
);
5058 char *fontsetname
= face
->font_name
;
5060 sprintf (line
, "%s.pane.menubar*font%s: %s",
5061 myname
, suffix
, fontsetname
);
5062 XrmPutLineResource (&rdb
, line
);
5063 sprintf (line
, "%s.%s*font%s: %s",
5064 myname
, popup_path
, suffix
, fontsetname
);
5065 XrmPutLineResource (&rdb
, line
);
5067 if (fontsetname
!= face
->font_name
)
5068 xfree (fontsetname
);
5071 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
5072 free_frame_menubar (f
);
5076 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
5079 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
5080 Sface_attribute_relative_p
,
5082 doc
: /* Check whether a face attribute value is relative.
5083 Specifically, this function returns t if the attribute ATTRIBUTE
5084 with the value VALUE is relative.
5086 A relative value is one that doesn't entirely override whatever is
5087 inherited from another face. For most possible attributes,
5088 the only relative value that users see is `unspecified'.
5089 However, for :height, floating point values are also relative. */)
5091 Lisp_Object attribute
, value
;
5093 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
5095 else if (EQ (attribute
, QCheight
))
5096 return INTEGERP (value
) ? Qnil
: Qt
;
5101 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
5103 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
5104 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
5105 the result will be absolute, otherwise it will be relative. */)
5106 (attribute
, value1
, value2
)
5107 Lisp_Object attribute
, value1
, value2
;
5109 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
5111 else if (EQ (attribute
, QCheight
))
5112 return merge_face_heights (value1
, value2
, value1
);
5118 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
5119 Sinternal_get_lisp_face_attribute
,
5121 doc
: /* Return face attribute KEYWORD of face SYMBOL.
5122 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
5123 face attribute name, signal an error.
5124 If the optional argument FRAME is given, report on face SYMBOL in that
5125 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
5126 frames). If FRAME is omitted or nil, use the selected frame. */)
5127 (symbol
, keyword
, frame
)
5128 Lisp_Object symbol
, keyword
, frame
;
5130 Lisp_Object lface
, value
= Qnil
;
5132 CHECK_SYMBOL (symbol
);
5133 CHECK_SYMBOL (keyword
);
5136 lface
= lface_from_face_name (NULL
, symbol
, 1);
5140 frame
= selected_frame
;
5141 CHECK_LIVE_FRAME (frame
);
5142 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
5145 if (EQ (keyword
, QCfamily
))
5146 value
= LFACE_FAMILY (lface
);
5147 else if (EQ (keyword
, QCheight
))
5148 value
= LFACE_HEIGHT (lface
);
5149 else if (EQ (keyword
, QCweight
))
5150 value
= LFACE_WEIGHT (lface
);
5151 else if (EQ (keyword
, QCslant
))
5152 value
= LFACE_SLANT (lface
);
5153 else if (EQ (keyword
, QCunderline
))
5154 value
= LFACE_UNDERLINE (lface
);
5155 else if (EQ (keyword
, QCoverline
))
5156 value
= LFACE_OVERLINE (lface
);
5157 else if (EQ (keyword
, QCstrike_through
))
5158 value
= LFACE_STRIKE_THROUGH (lface
);
5159 else if (EQ (keyword
, QCbox
))
5160 value
= LFACE_BOX (lface
);
5161 else if (EQ (keyword
, QCinverse_video
)
5162 || EQ (keyword
, QCreverse_video
))
5163 value
= LFACE_INVERSE (lface
);
5164 else if (EQ (keyword
, QCforeground
))
5165 value
= LFACE_FOREGROUND (lface
);
5166 else if (EQ (keyword
, QCbackground
))
5167 value
= LFACE_BACKGROUND (lface
);
5168 else if (EQ (keyword
, QCstipple
))
5169 value
= LFACE_STIPPLE (lface
);
5170 else if (EQ (keyword
, QCwidth
))
5171 value
= LFACE_SWIDTH (lface
);
5172 else if (EQ (keyword
, QCinherit
))
5173 value
= LFACE_INHERIT (lface
);
5174 else if (EQ (keyword
, QCfont
))
5175 value
= LFACE_FONT (lface
);
5176 else if (EQ (keyword
, QCfontset
))
5177 value
= LFACE_FONTSET (lface
);
5179 signal_error ("Invalid face attribute name", keyword
);
5181 if (IGNORE_DEFFACE_P (value
))
5182 return Qunspecified
;
5188 DEFUN ("internal-lisp-face-attribute-values",
5189 Finternal_lisp_face_attribute_values
,
5190 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
5191 doc
: /* Return a list of valid discrete values for face attribute ATTR.
5192 Value is nil if ATTR doesn't have a discrete set of valid values. */)
5196 Lisp_Object result
= Qnil
;
5198 CHECK_SYMBOL (attr
);
5200 if (EQ (attr
, QCweight
)
5201 || EQ (attr
, QCslant
)
5202 || EQ (attr
, QCwidth
))
5204 /* Extract permissible symbols from tables. */
5205 struct table_entry
*table
;
5208 if (EQ (attr
, QCweight
))
5209 table
= weight_table
, dim
= DIM (weight_table
);
5210 else if (EQ (attr
, QCslant
))
5211 table
= slant_table
, dim
= DIM (slant_table
);
5213 table
= swidth_table
, dim
= DIM (swidth_table
);
5215 for (i
= 0; i
< dim
; ++i
)
5217 Lisp_Object symbol
= *table
[i
].symbol
;
5218 Lisp_Object tail
= result
;
5221 && !EQ (XCAR (tail
), symbol
))
5225 result
= Fcons (symbol
, result
);
5228 else if (EQ (attr
, QCunderline
))
5229 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
5230 else if (EQ (attr
, QCoverline
))
5231 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
5232 else if (EQ (attr
, QCstrike_through
))
5233 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
5234 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
5235 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
5241 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
5242 Sinternal_merge_in_global_face
, 2, 2, 0,
5243 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
5244 Default face attributes override any local face attributes. */)
5246 Lisp_Object face
, frame
;
5249 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
5251 CHECK_LIVE_FRAME (frame
);
5252 global_lface
= lface_from_face_name (NULL
, face
, 1);
5253 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
5254 if (NILP (local_lface
))
5255 local_lface
= Finternal_make_lisp_face (face
, frame
);
5257 /* Make every specified global attribute override the local one.
5258 BEWARE!! This is only used from `face-set-after-frame-default' where
5259 the local frame is defined from default specs in `face-defface-spec'
5260 and those should be overridden by global settings. Hence the strange
5261 "global before local" priority. */
5262 lvec
= XVECTOR (local_lface
)->contents
;
5263 gvec
= XVECTOR (global_lface
)->contents
;
5264 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5265 if (! UNSPECIFIEDP (gvec
[i
]))
5267 if (IGNORE_DEFFACE_P (gvec
[i
]))
5268 lvec
[i
] = Qunspecified
;
5277 /* The following function is implemented for compatibility with 20.2.
5278 The function is used in x-resolve-fonts when it is asked to
5279 return fonts with the same size as the font of a face. This is
5280 done in fontset.el. */
5282 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
5283 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
5284 The font name is, by default, for ASCII characters.
5285 If the optional argument FRAME is given, report on face FACE in that frame.
5286 If FRAME is t, report on the defaults for face FACE (for new frames).
5287 The font default for a face is either nil, or a list
5288 of the form (bold), (italic) or (bold italic).
5289 If FRAME is omitted or nil, use the selected frame. And, in this case,
5290 if the optional third argument CHARACTER is given,
5291 return the font name used for CHARACTER. */)
5292 (face
, frame
, character
)
5293 Lisp_Object face
, frame
, character
;
5297 Lisp_Object result
= Qnil
;
5298 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
5300 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
5301 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
5302 result
= Fcons (Qbold
, result
);
5304 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
5305 && !EQ (LFACE_SLANT (lface
), Qnormal
))
5306 result
= Fcons (Qitalic
, result
);
5312 struct frame
*f
= frame_or_selected_frame (frame
, 1);
5313 int face_id
= lookup_named_face (f
, face
, 1);
5314 struct face
*face
= FACE_FROM_ID (f
, face_id
);
5318 #ifdef HAVE_WINDOW_SYSTEM
5319 if (FRAME_WINDOW_P (f
) && !NILP (character
))
5321 CHECK_CHARACTER (character
);
5322 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
5323 face
= FACE_FROM_ID (f
, face_id
);
5324 return (face
->font
&& face
->font_name
5325 ? build_string (face
->font_name
)
5329 return build_string (face
->font_name
);
5334 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
5335 all attributes are `equal'. Tries to be fast because this function
5336 is called quite often. */
5339 face_attr_equal_p (v1
, v2
)
5342 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
5343 and the other is specified. */
5344 if (XTYPE (v1
) != XTYPE (v2
))
5353 if (SBYTES (v1
) != SBYTES (v2
))
5356 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
5363 return !NILP (Fequal (v1
, v2
));
5368 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
5369 all attributes are `equal'. Tries to be fast because this function
5370 is called quite often. */
5373 lface_equal_p (v1
, v2
)
5374 Lisp_Object
*v1
, *v2
;
5378 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
5379 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
5385 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
5386 Sinternal_lisp_face_equal_p
, 2, 3, 0,
5387 doc
: /* True if FACE1 and FACE2 are equal.
5388 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
5389 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
5390 If FRAME is omitted or nil, use the selected frame. */)
5391 (face1
, face2
, frame
)
5392 Lisp_Object face1
, face2
, frame
;
5396 Lisp_Object lface1
, lface2
;
5401 /* Don't use check_x_frame here because this function is called
5402 before X frames exist. At that time, if FRAME is nil,
5403 selected_frame will be used which is the frame dumped with
5404 Emacs. That frame is not an X frame. */
5405 f
= frame_or_selected_frame (frame
, 2);
5407 lface1
= lface_from_face_name (f
, face1
, 1);
5408 lface2
= lface_from_face_name (f
, face2
, 1);
5409 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
5410 XVECTOR (lface2
)->contents
);
5411 return equal_p
? Qt
: Qnil
;
5415 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
5416 Sinternal_lisp_face_empty_p
, 1, 2, 0,
5417 doc
: /* True if FACE has no attribute specified.
5418 If the optional argument FRAME is given, report on face FACE in that frame.
5419 If FRAME is t, report on the defaults for face FACE (for new frames).
5420 If FRAME is omitted or nil, use the selected frame. */)
5422 Lisp_Object face
, frame
;
5429 frame
= selected_frame
;
5430 CHECK_LIVE_FRAME (frame
);
5434 lface
= lface_from_face_name (NULL
, face
, 1);
5436 lface
= lface_from_face_name (f
, face
, 1);
5438 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5439 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5442 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5446 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5448 doc
: /* Return an alist of frame-local faces defined on FRAME.
5449 For internal use only. */)
5453 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5454 return f
->face_alist
;
5458 /* Return a hash code for Lisp string STRING with case ignored. Used
5459 below in computing a hash value for a Lisp face. */
5461 static INLINE
unsigned
5462 hash_string_case_insensitive (string
)
5465 const unsigned char *s
;
5467 xassert (STRINGP (string
));
5468 for (s
= SDATA (string
); *s
; ++s
)
5469 hash
= (hash
<< 1) ^ tolower (*s
);
5474 /* Return a hash code for face attribute vector V. */
5476 static INLINE
unsigned
5480 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5481 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5482 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5483 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5484 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5485 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5486 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5490 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5491 considering charsets/registries). They do if they specify the same
5492 family, point size, weight, width, slant, font, and fontset. Both
5493 LFACE1 and LFACE2 must be fully-specified. */
5496 lface_same_font_attributes_p (lface1
, lface2
)
5497 Lisp_Object
*lface1
, *lface2
;
5499 xassert (lface_fully_specified_p (lface1
)
5500 && lface_fully_specified_p (lface2
));
5501 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5502 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5503 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5504 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5505 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5506 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5507 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5508 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5509 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5510 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5511 && ! xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5512 SDATA (lface2
[LFACE_FONT_INDEX
]))))
5513 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
5514 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
5515 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
5516 && ! xstricmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
5517 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
5523 /***********************************************************************
5525 ***********************************************************************/
5527 /* Allocate and return a new realized face for Lisp face attribute
5530 static struct face
*
5531 make_realized_face (attr
)
5534 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5535 bzero (face
, sizeof *face
);
5536 face
->ascii_face
= face
;
5537 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5542 /* Free realized face FACE, including its X resources. FACE may
5546 free_realized_face (f
, face
)
5552 #ifdef HAVE_WINDOW_SYSTEM
5553 if (FRAME_WINDOW_P (f
))
5555 /* Free fontset of FACE if it is ASCII face. */
5556 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5557 free_face_fontset (f
, face
);
5560 #ifdef USE_FONT_BACKEND
5561 if (enable_font_backend
&& face
->font_info
)
5562 font_done_for_face (f
, face
);
5563 #endif /* USE_FONT_BACKEND */
5564 x_free_gc (f
, face
->gc
);
5568 free_face_colors (f
, face
);
5569 x_destroy_bitmap (f
, face
->stipple
);
5571 #endif /* HAVE_WINDOW_SYSTEM */
5578 /* Prepare face FACE for subsequent display on frame F. This
5579 allocated GCs if they haven't been allocated yet or have been freed
5580 by clearing the face cache. */
5583 prepare_face_for_display (f
, face
)
5587 #ifdef HAVE_WINDOW_SYSTEM
5588 xassert (FRAME_WINDOW_P (f
));
5593 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5595 xgcv
.foreground
= face
->foreground
;
5596 xgcv
.background
= face
->background
;
5597 #ifdef HAVE_X_WINDOWS
5598 xgcv
.graphics_exposures
= False
;
5600 /* The font of FACE may be null if we couldn't load it. */
5603 #ifdef HAVE_X_WINDOWS
5604 xgcv
.font
= face
->font
->fid
;
5607 xgcv
.font
= face
->font
;
5610 xgcv
.font
= face
->font
;
5616 #ifdef HAVE_X_WINDOWS
5619 xgcv
.fill_style
= FillOpaqueStippled
;
5620 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5621 mask
|= GCFillStyle
| GCStipple
;
5624 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5625 #ifdef USE_FONT_BACKEND
5626 if (enable_font_backend
&& face
->font
)
5627 font_prepare_for_face (f
, face
);
5628 #endif /* USE_FONT_BACKEND */
5631 #endif /* HAVE_WINDOW_SYSTEM */
5635 /* Returns the `distance' between the colors X and Y. */
5638 color_distance (x
, y
)
5641 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5642 Quoting from that paper:
5644 This formula has results that are very close to L*u*v* (with the
5645 modified lightness curve) and, more importantly, it is a more even
5646 algorithm: it does not have a range of colours where it suddenly
5647 gives far from optimal results.
5649 See <http://www.compuphase.com/cmetric.htm> for more info. */
5651 long r
= (x
->red
- y
->red
) >> 8;
5652 long g
= (x
->green
- y
->green
) >> 8;
5653 long b
= (x
->blue
- y
->blue
) >> 8;
5654 long r_mean
= (x
->red
+ y
->red
) >> 9;
5657 (((512 + r_mean
) * r
* r
) >> 8)
5659 + (((767 - r_mean
) * b
* b
) >> 8);
5663 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5664 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5665 COLOR1 and COLOR2 may be either strings containing the color name,
5666 or lists of the form (RED GREEN BLUE).
5667 If FRAME is unspecified or nil, the current frame is used. */)
5668 (color1
, color2
, frame
)
5669 Lisp_Object color1
, color2
, frame
;
5672 XColor cdef1
, cdef2
;
5675 frame
= selected_frame
;
5676 CHECK_LIVE_FRAME (frame
);
5679 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
5680 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
5681 signal_error ("Invalid color", color1
);
5682 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
5683 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
5684 signal_error ("Invalid color", color2
);
5686 return make_number (color_distance (&cdef1
, &cdef2
));
5690 /***********************************************************************
5692 ***********************************************************************/
5694 /* Return a new face cache for frame F. */
5696 static struct face_cache
*
5700 struct face_cache
*c
;
5703 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5704 bzero (c
, sizeof *c
);
5705 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5706 c
->buckets
= (struct face
**) xmalloc (size
);
5707 bzero (c
->buckets
, size
);
5709 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5711 c
->menu_face_changed_p
= menu_face_changed_default
;
5716 /* Clear out all graphics contexts for all realized faces, except for
5717 the basic faces. This should be done from time to time just to avoid
5718 keeping too many graphics contexts that are no longer needed. */
5722 struct face_cache
*c
;
5724 if (c
&& FRAME_WINDOW_P (c
->f
))
5726 #ifdef HAVE_WINDOW_SYSTEM
5728 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5730 struct face
*face
= c
->faces_by_id
[i
];
5731 if (face
&& face
->gc
)
5733 #ifdef USE_FONT_BACKEND
5734 if (enable_font_backend
&& face
->font_info
)
5735 font_done_for_face (c
->f
, face
);
5736 #endif /* USE_FONT_BACKEND */
5737 x_free_gc (c
->f
, face
->gc
);
5741 #endif /* HAVE_WINDOW_SYSTEM */
5746 /* Free all realized faces in face cache C, including basic faces.
5747 C may be null. If faces are freed, make sure the frame's current
5748 matrix is marked invalid, so that a display caused by an expose
5749 event doesn't try to use faces we destroyed. */
5752 free_realized_faces (c
)
5753 struct face_cache
*c
;
5758 struct frame
*f
= c
->f
;
5760 /* We must block input here because we can't process X events
5761 safely while only some faces are freed, or when the frame's
5762 current matrix still references freed faces. */
5765 for (i
= 0; i
< c
->used
; ++i
)
5767 free_realized_face (f
, c
->faces_by_id
[i
]);
5768 c
->faces_by_id
[i
] = NULL
;
5772 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5773 bzero (c
->buckets
, size
);
5775 /* Must do a thorough redisplay the next time. Mark current
5776 matrices as invalid because they will reference faces freed
5777 above. This function is also called when a frame is
5778 destroyed. In this case, the root window of F is nil. */
5779 if (WINDOWP (f
->root_window
))
5781 clear_current_matrices (f
);
5782 ++windows_or_buffers_changed
;
5790 /* Free all realized faces that are using FONTSET on frame F. */
5793 free_realized_faces_for_fontset (f
, fontset
)
5797 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5801 /* We must block input here because we can't process X events safely
5802 while only some faces are freed, or when the frame's current
5803 matrix still references freed faces. */
5806 for (i
= 0; i
< cache
->used
; i
++)
5808 face
= cache
->faces_by_id
[i
];
5810 && face
->fontset
== fontset
)
5812 uncache_face (cache
, face
);
5813 free_realized_face (f
, face
);
5817 /* Must do a thorough redisplay the next time. Mark current
5818 matrices as invalid because they will reference faces freed
5819 above. This function is also called when a frame is destroyed.
5820 In this case, the root window of F is nil. */
5821 if (WINDOWP (f
->root_window
))
5823 clear_current_matrices (f
);
5824 ++windows_or_buffers_changed
;
5831 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5832 This is done after attributes of a named face have been changed,
5833 because we can't tell which realized faces depend on that face. */
5836 free_all_realized_faces (frame
)
5842 FOR_EACH_FRAME (rest
, frame
)
5843 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5846 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5850 /* Free face cache C and faces in it, including their X resources. */
5854 struct face_cache
*c
;
5858 free_realized_faces (c
);
5860 xfree (c
->faces_by_id
);
5866 /* Cache realized face FACE in face cache C. HASH is the hash value
5867 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
5868 FACE), insert the new face to the beginning of the collision list
5869 of the face hash table of C. Otherwise, add the new face to the
5870 end of the collision list. This way, lookup_face can quickly find
5871 that a requested face is not cached. */
5874 cache_face (c
, face
, hash
)
5875 struct face_cache
*c
;
5879 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5883 if (face
->ascii_face
!= face
)
5885 struct face
*last
= c
->buckets
[i
];
5896 c
->buckets
[i
] = face
;
5897 face
->prev
= face
->next
= NULL
;
5903 face
->next
= c
->buckets
[i
];
5905 face
->next
->prev
= face
;
5906 c
->buckets
[i
] = face
;
5909 /* Find a free slot in C->faces_by_id and use the index of the free
5910 slot as FACE->id. */
5911 for (i
= 0; i
< c
->used
; ++i
)
5912 if (c
->faces_by_id
[i
] == NULL
)
5916 /* Maybe enlarge C->faces_by_id. */
5919 if (c
->used
== c
->size
)
5922 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5923 if (new_size
== c
->size
)
5924 abort (); /* Alternatives? ++kfs */
5925 sz
= new_size
* sizeof *c
->faces_by_id
;
5926 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5933 /* Check that FACE got a unique id. */
5938 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5939 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5945 #endif /* GLYPH_DEBUG */
5947 c
->faces_by_id
[i
] = face
;
5951 /* Remove face FACE from cache C. */
5954 uncache_face (c
, face
)
5955 struct face_cache
*c
;
5958 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5961 face
->prev
->next
= face
->next
;
5963 c
->buckets
[i
] = face
->next
;
5966 face
->next
->prev
= face
->prev
;
5968 c
->faces_by_id
[face
->id
] = NULL
;
5969 if (face
->id
== c
->used
)
5974 /* Look up a realized face with face attributes ATTR in the face cache
5975 of frame F. The face will be used to display ASCII characters.
5976 Value is the ID of the face found. If no suitable face is found,
5977 realize a new one. */
5980 lookup_face (f
, attr
)
5984 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5989 xassert (cache
!= NULL
);
5990 check_lface_attrs (attr
);
5992 /* Look up ATTR in the face cache. */
5993 hash
= lface_hash (attr
);
5994 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5996 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5998 if (face
->ascii_face
!= face
)
6000 /* There's no more ASCII face. */
6004 if (face
->hash
== hash
6005 && lface_equal_p (face
->lface
, attr
))
6009 /* If not found, realize a new face. */
6011 face
= realize_face (cache
, attr
, -1);
6014 xassert (face
== FACE_FROM_ID (f
, face
->id
));
6015 #endif /* GLYPH_DEBUG */
6020 #ifdef HAVE_WINDOW_SYSTEM
6021 /* Look up a realized face that has the same attributes as BASE_FACE
6022 except for the font in the face cache of frame F. If FONT_ID is
6023 not negative, it is an ID number of an already opened font that is
6024 used by the face. If FONT_ID is negative, the face has no font.
6025 Value is the ID of the face found. If no suitable face is found,
6026 realize a new one. */
6029 lookup_non_ascii_face (f
, font_id
, base_face
)
6032 struct face
*base_face
;
6034 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
6039 xassert (cache
!= NULL
);
6040 base_face
= base_face
->ascii_face
;
6041 hash
= lface_hash (base_face
->lface
);
6042 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
6044 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
6046 if (face
->ascii_face
== face
)
6048 if (face
->ascii_face
== base_face
6049 && face
->font_info_id
== font_id
)
6053 /* If not found, realize a new face. */
6055 face
= realize_non_ascii_face (f
, font_id
, base_face
);
6058 xassert (face
== FACE_FROM_ID (f
, face
->id
));
6059 #endif /* GLYPH_DEBUG */
6064 #ifdef USE_FONT_BACKEND
6066 face_for_font (f
, font
, base_face
)
6069 struct face
*base_face
;
6071 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
6076 xassert (cache
!= NULL
);
6077 base_face
= base_face
->ascii_face
;
6078 hash
= lface_hash (base_face
->lface
);
6079 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
6081 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
6083 if (face
->ascii_face
== face
)
6085 if (face
->ascii_face
== base_face
6086 && face
->font
== font
->font
.font
6087 && face
->font_info
== (struct font_info
*) font
)
6091 /* If not found, realize a new face. */
6092 face
= realize_non_ascii_face (f
, -1, base_face
);
6093 face
->font
= font
->font
.font
;
6094 face
->font_info
= (struct font_info
*) font
;
6095 face
->font_info_id
= 0;
6096 face
->font_name
= font
->font
.full_name
;
6099 #endif /* USE_FONT_BACKEND */
6101 #endif /* HAVE_WINDOW_SYSTEM */
6103 /* Return the face id of the realized face for named face SYMBOL on
6104 frame F suitable for displaying ASCII characters. Value is -1 if
6105 the face couldn't be determined, which might happen if the default
6106 face isn't realized and cannot be realized. */
6109 lookup_named_face (f
, symbol
, signal_p
)
6114 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6115 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6116 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6118 if (default_face
== NULL
)
6120 if (!realize_basic_faces (f
))
6122 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6123 if (default_face
== NULL
)
6124 abort (); /* realize_basic_faces must have set it up */
6127 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
))
6130 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6131 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
6133 return lookup_face (f
, attrs
);
6137 /* Return the ID of the realized ASCII face of Lisp face with ID
6138 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
6141 ascii_face_of_lisp_face (f
, lface_id
)
6147 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
6149 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
6150 face_id
= lookup_named_face (f
, face_name
, 1);
6159 /* Return a face for charset ASCII that is like the face with id
6160 FACE_ID on frame F, but has a font that is STEPS steps smaller.
6161 STEPS < 0 means larger. Value is the id of the face. */
6164 smaller_face (f
, face_id
, steps
)
6168 #ifdef HAVE_WINDOW_SYSTEM
6170 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6171 int pt
, last_pt
, last_height
;
6174 struct face
*new_face
;
6176 /* If not called for an X frame, just return the original face. */
6177 if (FRAME_TERMCAP_P (f
))
6180 /* Try in increments of 1/2 pt. */
6181 delta
= steps
< 0 ? 5 : -5;
6182 steps
= abs (steps
);
6184 face
= FACE_FROM_ID (f
, face_id
);
6185 bcopy (face
->lface
, attrs
, sizeof attrs
);
6186 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6187 new_face_id
= face_id
;
6188 last_height
= FONT_HEIGHT (face
->font
);
6192 /* Give up if we cannot find a font within 10pt. */
6193 && abs (last_pt
- pt
) < 100)
6195 /* Look up a face for a slightly smaller/larger font. */
6197 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
6198 new_face_id
= lookup_face (f
, attrs
);
6199 new_face
= FACE_FROM_ID (f
, new_face_id
);
6201 /* If height changes, count that as one step. */
6202 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
6203 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
6206 last_height
= FONT_HEIGHT (new_face
->font
);
6213 #else /* not HAVE_WINDOW_SYSTEM */
6217 #endif /* not HAVE_WINDOW_SYSTEM */
6221 /* Return a face for charset ASCII that is like the face with id
6222 FACE_ID on frame F, but has height HEIGHT. */
6225 face_with_height (f
, face_id
, height
)
6230 #ifdef HAVE_WINDOW_SYSTEM
6232 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6234 if (FRAME_TERMCAP_P (f
)
6238 face
= FACE_FROM_ID (f
, face_id
);
6239 bcopy (face
->lface
, attrs
, sizeof attrs
);
6240 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
6241 face_id
= lookup_face (f
, attrs
);
6242 #endif /* HAVE_WINDOW_SYSTEM */
6248 /* Return the face id of the realized face for named face SYMBOL on
6249 frame F suitable for displaying ASCII characters, and use
6250 attributes of the face FACE_ID for attributes that aren't
6251 completely specified by SYMBOL. This is like lookup_named_face,
6252 except that the default attributes come from FACE_ID, not from the
6253 default face. FACE_ID is assumed to be already realized. */
6256 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
6262 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6263 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6264 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
6269 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
);
6270 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6271 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
6272 return lookup_face (f
, attrs
);
6275 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
6276 Sface_attributes_as_vector
, 1, 1, 0,
6277 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
6282 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
6284 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
6291 /***********************************************************************
6292 Face capability testing
6293 ***********************************************************************/
6296 /* If the distance (as returned by color_distance) between two colors is
6297 less than this, then they are considered the same, for determining
6298 whether a color is supported or not. The range of values is 0-65535. */
6300 #define TTY_SAME_COLOR_THRESHOLD 10000
6302 #ifdef HAVE_WINDOW_SYSTEM
6304 /* Return non-zero if all the face attributes in ATTRS are supported
6305 on the window-system frame F.
6307 The definition of `supported' is somewhat heuristic, but basically means
6308 that a face containing all the attributes in ATTRS, when merged with the
6309 default face for display, can be represented in a way that's
6311 \(1) different in appearance than the default face, and
6312 \(2) `close in spirit' to what the attributes specify, if not exact. */
6315 x_supports_face_attributes_p (f
, attrs
, def_face
)
6318 struct face
*def_face
;
6320 Lisp_Object
*def_attrs
= def_face
->lface
;
6322 /* Check that other specified attributes are different that the default
6324 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
6325 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
6326 def_attrs
[LFACE_UNDERLINE_INDEX
]))
6327 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
6328 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
6329 def_attrs
[LFACE_INVERSE_INDEX
]))
6330 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
6331 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
6332 def_attrs
[LFACE_FOREGROUND_INDEX
]))
6333 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
6334 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
6335 def_attrs
[LFACE_BACKGROUND_INDEX
]))
6336 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
6337 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
6338 def_attrs
[LFACE_STIPPLE_INDEX
]))
6339 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
6340 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
6341 def_attrs
[LFACE_OVERLINE_INDEX
]))
6342 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
6343 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6344 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
6345 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
6346 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
6347 def_attrs
[LFACE_BOX_INDEX
])))
6350 /* Check font-related attributes, as those are the most commonly
6351 "unsupported" on a window-system (because of missing fonts). */
6352 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
6353 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
6354 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
6355 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
6356 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
6357 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
6361 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
6363 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
6365 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
6367 face_id
= lookup_face (f
, merged_attrs
);
6368 face
= FACE_FROM_ID (f
, face_id
);
6371 error ("Cannot make face");
6373 /* If the font is the same, then not supported. */
6374 if (face
->font
== def_face
->font
)
6378 /* Everything checks out, this face is supported. */
6382 #endif /* HAVE_WINDOW_SYSTEM */
6384 /* Return non-zero if all the face attributes in ATTRS are supported
6387 The definition of `supported' is somewhat heuristic, but basically means
6388 that a face containing all the attributes in ATTRS, when merged
6389 with the default face for display, can be represented in a way that's
6391 \(1) different in appearance than the default face, and
6392 \(2) `close in spirit' to what the attributes specify, if not exact.
6394 Point (2) implies that a `:weight black' attribute will be satisfied
6395 by any terminal that can display bold, and a `:foreground "yellow"' as
6396 long as the terminal can display a yellowish color, but `:slant italic'
6397 will _not_ be satisfied by the tty display code's automatic
6398 substitution of a `dim' face for italic. */
6401 tty_supports_face_attributes_p (f
, attrs
, def_face
)
6404 struct face
*def_face
;
6407 Lisp_Object val
, fg
, bg
;
6408 XColor fg_tty_color
, fg_std_color
;
6409 XColor bg_tty_color
, bg_std_color
;
6410 unsigned test_caps
= 0;
6411 Lisp_Object
*def_attrs
= def_face
->lface
;
6414 /* First check some easy-to-check stuff; ttys support none of the
6415 following attributes, so we can just return false if any are requested
6416 (even if `nominal' values are specified, we should still return false,
6417 as that will be the same value that the default face uses). We
6418 consider :slant unsupportable on ttys, even though the face code
6419 actually `fakes' them using a dim attribute if possible. This is
6420 because the faked result is too different from what the face
6422 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
6423 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
6424 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
6425 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
6426 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
6427 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
6428 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
6429 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
6433 /* Test for terminal `capabilities' (non-color character attributes). */
6435 /* font weight (bold/dim) */
6436 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6439 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
6441 if (weight
> XLFD_WEIGHT_MEDIUM
)
6443 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
6444 return 0; /* same as default */
6445 test_caps
= TTY_CAP_BOLD
;
6447 else if (weight
< XLFD_WEIGHT_MEDIUM
)
6449 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
6450 return 0; /* same as default */
6451 test_caps
= TTY_CAP_DIM
;
6453 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
6454 return 0; /* same as default */
6458 val
= attrs
[LFACE_UNDERLINE_INDEX
];
6459 if (!UNSPECIFIEDP (val
))
6462 return 0; /* ttys can't use colored underlines */
6463 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6464 return 0; /* same as default */
6466 test_caps
|= TTY_CAP_UNDERLINE
;
6470 val
= attrs
[LFACE_INVERSE_INDEX
];
6471 if (!UNSPECIFIEDP (val
))
6473 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6474 return 0; /* same as default */
6476 test_caps
|= TTY_CAP_INVERSE
;
6480 /* Color testing. */
6482 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
6483 we use them when calling `tty_capable_p' below, even if the face
6484 specifies no colors. */
6485 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6486 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6488 /* Check if foreground color is close enough. */
6489 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
6492 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6494 if (face_attr_equal_p (fg
, def_fg
))
6495 return 0; /* same as default */
6496 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
6497 return 0; /* not a valid color */
6498 else if (color_distance (&fg_tty_color
, &fg_std_color
)
6499 > TTY_SAME_COLOR_THRESHOLD
)
6500 return 0; /* displayed color is too different */
6502 /* Make sure the color is really different than the default. */
6504 XColor def_fg_color
;
6505 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
6506 && (color_distance (&fg_tty_color
, &def_fg_color
)
6507 <= TTY_SAME_COLOR_THRESHOLD
))
6512 /* Check if background color is close enough. */
6513 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
6516 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6518 if (face_attr_equal_p (bg
, def_bg
))
6519 return 0; /* same as default */
6520 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6521 return 0; /* not a valid color */
6522 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6523 > TTY_SAME_COLOR_THRESHOLD
)
6524 return 0; /* displayed color is too different */
6526 /* Make sure the color is really different than the default. */
6528 XColor def_bg_color
;
6529 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6530 && (color_distance (&bg_tty_color
, &def_bg_color
)
6531 <= TTY_SAME_COLOR_THRESHOLD
))
6536 /* If both foreground and background are requested, see if the
6537 distance between them is OK. We just check to see if the distance
6538 between the tty's foreground and background is close enough to the
6539 distance between the standard foreground and background. */
6540 if (STRINGP (fg
) && STRINGP (bg
))
6543 = (color_distance (&fg_std_color
, &bg_std_color
)
6544 - color_distance (&fg_tty_color
, &bg_tty_color
));
6545 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6546 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6551 /* See if the capabilities we selected above are supported, with the
6553 if (test_caps
!= 0 &&
6554 ! tty_capable_p (f
, test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6558 /* Hmmm, everything checks out, this terminal must support this face. */
6563 DEFUN ("display-supports-face-attributes-p",
6564 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6566 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6567 The optional argument DISPLAY can be a display name, a frame, or
6568 nil (meaning the selected frame's display).
6570 The definition of `supported' is somewhat heuristic, but basically means
6571 that a face containing all the attributes in ATTRIBUTES, when merged
6572 with the default face for display, can be represented in a way that's
6574 \(1) different in appearance than the default face, and
6575 \(2) `close in spirit' to what the attributes specify, if not exact.
6577 Point (2) implies that a `:weight black' attribute will be satisfied by
6578 any display that can display bold, and a `:foreground \"yellow\"' as long
6579 as it can display a yellowish color, but `:slant italic' will _not_ be
6580 satisfied by the tty display code's automatic substitution of a `dim'
6581 face for italic. */)
6582 (attributes
, display
)
6583 Lisp_Object attributes
, display
;
6585 int supports
= 0, i
;
6588 struct face
*def_face
;
6589 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6591 if (noninteractive
|| !initialized
)
6592 /* We may not be able to access low-level face information in batch
6593 mode, or before being dumped, and this function is not going to
6594 be very useful in those cases anyway, so just give up. */
6598 frame
= selected_frame
;
6599 else if (FRAMEP (display
))
6603 /* Find any frame on DISPLAY. */
6604 Lisp_Object fl_tail
;
6607 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6609 frame
= XCAR (fl_tail
);
6610 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6611 XFRAME (frame
)->param_alist
)),
6617 CHECK_LIVE_FRAME (frame
);
6620 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6621 attrs
[i
] = Qunspecified
;
6622 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6624 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6625 if (def_face
== NULL
)
6627 if (! realize_basic_faces (f
))
6628 error ("Cannot realize default face");
6629 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6630 if (def_face
== NULL
)
6631 abort (); /* realize_basic_faces must have set it up */
6634 /* Dispatch to the appropriate handler. */
6635 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6636 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6637 #ifdef HAVE_WINDOW_SYSTEM
6639 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6642 return supports
? Qt
: Qnil
;
6646 /***********************************************************************
6648 ***********************************************************************/
6650 DEFUN ("internal-set-font-selection-order",
6651 Finternal_set_font_selection_order
,
6652 Sinternal_set_font_selection_order
, 1, 1, 0,
6653 doc
: /* Set font selection order for face font selection to ORDER.
6654 ORDER must be a list of length 4 containing the symbols `:width',
6655 `:height', `:weight', and `:slant'. Face attributes appearing
6656 first in ORDER are matched first, e.g. if `:height' appears before
6657 `:weight' in ORDER, font selection first tries to find a font with
6658 a suitable height, and then tries to match the font weight.
6665 int indices
[DIM (font_sort_order
)];
6668 bzero (indices
, sizeof indices
);
6672 CONSP (list
) && i
< DIM (indices
);
6673 list
= XCDR (list
), ++i
)
6675 Lisp_Object attr
= XCAR (list
);
6678 if (EQ (attr
, QCwidth
))
6680 else if (EQ (attr
, QCheight
))
6681 xlfd
= XLFD_POINT_SIZE
;
6682 else if (EQ (attr
, QCweight
))
6684 else if (EQ (attr
, QCslant
))
6689 if (indices
[i
] != 0)
6694 if (!NILP (list
) || i
!= DIM (indices
))
6695 signal_error ("Invalid font sort order", order
);
6696 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6697 if (indices
[i
] == 0)
6698 signal_error ("Invalid font sort order", order
);
6700 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6702 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6703 free_all_realized_faces (Qnil
);
6706 #ifdef USE_FONT_BACKEND
6707 font_update_sort_order (font_sort_order
);
6708 #endif /* USE_FONT_BACKEND */
6714 DEFUN ("internal-set-alternative-font-family-alist",
6715 Finternal_set_alternative_font_family_alist
,
6716 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6717 doc
: /* Define alternative font families to try in face font selection.
6718 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6719 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6720 be found. Value is ALIST. */)
6725 Vface_alternative_font_family_alist
= alist
;
6726 free_all_realized_faces (Qnil
);
6731 DEFUN ("internal-set-alternative-font-registry-alist",
6732 Finternal_set_alternative_font_registry_alist
,
6733 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6734 doc
: /* Define alternative font registries to try in face font selection.
6735 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6736 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6737 be found. Value is ALIST. */)
6742 Vface_alternative_font_registry_alist
= alist
;
6743 free_all_realized_faces (Qnil
);
6748 #ifdef HAVE_WINDOW_SYSTEM
6750 /* Value is non-zero if FONT is the name of a scalable font. The
6751 X11R6 XLFD spec says that point size, pixel size, and average width
6752 are zero for scalable fonts. Intlfonts contain at least one
6753 scalable font ("*-muleindian-1") for which this isn't true, so we
6754 just test average width. */
6757 font_scalable_p (font
)
6758 struct font_name
*font
;
6760 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6761 return (*s
== '0' && *(s
+ 1) == '\0')
6763 /* Windows implementation of XLFD is slightly broken for backward
6764 compatibility with previous broken versions, so test for
6765 wildcards as well as 0. */
6772 /* Ignore the difference of font point size less than this value. */
6774 #define FONT_POINT_SIZE_QUANTUM 5
6776 /* Value is non-zero if FONT1 is a better match for font attributes
6777 VALUES than FONT2. VALUES is an array of face attribute values in
6778 font sort order. COMPARE_PT_P zero means don't compare point
6779 sizes. AVGWIDTH, if not zero, is a specified font average width
6783 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6785 struct font_name
*font1
, *font2
;
6786 int compare_pt_p
, avgwidth
;
6790 /* Any font is better than no font. */
6796 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6798 int xlfd_idx
= font_sort_order
[i
];
6800 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6804 if (xlfd_idx
== XLFD_POINT_SIZE
)
6806 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6807 / font1
->rescale_ratio
));
6808 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6809 / font2
->rescale_ratio
));
6810 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6815 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6816 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6819 if (delta1
> delta2
)
6821 else if (delta1
< delta2
)
6825 /* The difference may be equal because, e.g., the face
6826 specifies `italic' but we have only `regular' and
6827 `oblique'. Prefer `oblique' in this case. */
6828 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6829 && font1
->numeric
[xlfd_idx
] > values
[i
]
6830 && font2
->numeric
[xlfd_idx
] < values
[i
])
6838 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6839 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6840 if (delta1
> delta2
)
6842 else if (delta1
< delta2
)
6848 /* We prefer a real scalable font; i.e. not what autoscaled. */
6849 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6850 && font1
->numeric
[XLFD_RESY
] > 0);
6851 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6852 && font2
->numeric
[XLFD_RESY
] > 0);
6854 if (auto_scaled_1
!= auto_scaled_2
)
6855 return auto_scaled_2
;
6858 return font1
->registry_priority
< font2
->registry_priority
;
6862 /* Value is non-zero if FONT is an exact match for face attributes in
6863 SPECIFIED. SPECIFIED is an array of face attribute values in font
6864 sort order. AVGWIDTH, if non-zero, is an average width to compare
6868 exact_face_match_p (specified
, font
, avgwidth
)
6870 struct font_name
*font
;
6875 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6876 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6879 return (i
== DIM (font_sort_order
)
6881 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6885 /* Value is the name of a scaled font, generated from scalable font
6886 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6887 Value is allocated from heap. */
6890 build_scalable_font_name (f
, font
, specified_pt
)
6892 struct font_name
*font
;
6895 char pixel_size
[20];
6897 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6900 if (font
->numeric
[XLFD_PIXEL_SIZE
] != 0
6901 || font
->numeric
[XLFD_POINT_SIZE
] != 0)
6902 /* This is a scalable font but is requested for a specific size.
6903 We should not change that size. */
6904 return build_font_name (font
);
6906 /* If scalable font is for a specific resolution, compute
6907 the point size we must specify from the resolution of
6908 the display and the specified resolution of the font. */
6909 if (font
->numeric
[XLFD_RESY
] != 0)
6911 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6912 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6917 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6919 /* We may need a font of the different size. */
6920 pixel_value
*= font
->rescale_ratio
;
6922 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6923 font of the specified PIXEL_SIZE. */
6925 { /* Set point size of the font. */
6926 char point_size
[20];
6927 sprintf (point_size
, "%d", (int) pt
);
6928 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6929 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6933 /* Set pixel size. */
6934 sprintf (pixel_size
, "%d", pixel_value
);
6935 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6936 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6938 /* If font doesn't specify its resolution, use the
6939 resolution of the display. */
6940 if (font
->numeric
[XLFD_RESY
] == 0)
6943 sprintf (buffer
, "%d", (int) resy
);
6944 font
->fields
[XLFD_RESY
] = buffer
;
6945 font
->numeric
[XLFD_RESY
] = resy
;
6948 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6951 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6952 sprintf (buffer
, "%d", resx
);
6953 font
->fields
[XLFD_RESX
] = buffer
;
6954 font
->numeric
[XLFD_RESX
] = resx
;
6957 return build_font_name (font
);
6961 /* Value is non-zero if we are allowed to use scalable font FONT. We
6962 can't run a Lisp function here since this function may be called
6963 with input blocked. */
6966 may_use_scalable_font_p (font
)
6969 if (EQ (Vscalable_fonts_allowed
, Qt
))
6971 else if (CONSP (Vscalable_fonts_allowed
))
6973 Lisp_Object tail
, regexp
;
6975 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6977 regexp
= XCAR (tail
);
6978 if (STRINGP (regexp
)
6979 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6989 /* Return the name of the best matching font for face attributes ATTRS
6990 in the array of font_name structures FONTS which contains NFONTS
6991 elements. WIDTH_RATIO is a factor with which to multiply average
6992 widths if ATTRS specifies such a width.
6994 Value is a font name which is allocated from the heap. FONTS is
6995 freed by this function.
6997 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6998 indicate whether the resulting font should be drawn using overstrike
6999 to simulate bold-face. */
7002 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
7005 struct font_name
*fonts
;
7008 int *needs_overstrike
;
7011 struct font_name
*best
;
7014 int exact_p
, avgwidth
;
7019 /* Make specified font attributes available in `specified',
7020 indexed by sort order. */
7021 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7023 int xlfd_idx
= font_sort_order
[i
];
7025 if (xlfd_idx
== XLFD_SWIDTH
)
7026 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
7027 else if (xlfd_idx
== XLFD_POINT_SIZE
)
7028 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
7029 else if (xlfd_idx
== XLFD_WEIGHT
)
7030 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7031 else if (xlfd_idx
== XLFD_SLANT
)
7032 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7037 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
7039 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
7043 if (needs_overstrike
)
7044 *needs_overstrike
= 0;
7048 /* Find the best match among the non-scalable fonts. */
7049 for (i
= 0; i
< nfonts
; ++i
)
7050 if (!font_scalable_p (fonts
+ i
)
7051 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
7055 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
7060 /* Unless we found an exact match among non-scalable fonts, see if
7061 we can find a better match among scalable fonts. */
7064 /* A scalable font is better if
7066 1. its weight, slant, swidth attributes are better, or.
7068 2. the best non-scalable font doesn't have the required
7069 point size, and the scalable fonts weight, slant, swidth
7072 int non_scalable_has_exact_height_p
;
7074 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
7075 non_scalable_has_exact_height_p
= 1;
7077 non_scalable_has_exact_height_p
= 0;
7079 for (i
= 0; i
< nfonts
; ++i
)
7080 if (font_scalable_p (fonts
+ i
))
7082 if (better_font_p (specified
, fonts
+ i
, best
, 0, 0)
7083 || (!non_scalable_has_exact_height_p
7084 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
7086 non_scalable_has_exact_height_p
= 1;
7092 /* We should have found SOME font. */
7096 if (! exact_p
&& needs_overstrike
)
7098 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
7099 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
7101 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
7103 /* We want a bold font, but didn't get one; try to use
7104 overstriking instead to simulate bold-face. However,
7105 don't overstrike an already-bold font unless the
7106 desired weight grossly exceeds the available weight. */
7107 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
7108 *needs_overstrike
= (want_weight
- got_weight
) > 2;
7110 *needs_overstrike
= 1;
7114 if (font_scalable_p (best
))
7115 font_name
= build_scalable_font_name (f
, best
, pt
);
7117 font_name
= build_font_name (best
);
7119 /* Free font_name structures. */
7120 free_font_names (fonts
, nfonts
);
7126 /* Get a list of matching fonts on frame F, considering FAMILY
7127 and alternative font families from Vface_alternative_font_registry_alist.
7129 FAMILY is the font family whose alternatives are considered.
7131 REGISTRY, if a string, specifies a font registry and encoding to
7132 match. A value of nil means include fonts of any registry and
7135 Return in *FONTS a pointer to a vector of font_name structures for
7136 the fonts matched. Value is the number of fonts found. */
7139 try_alternative_families (f
, family
, registry
, fonts
)
7141 Lisp_Object family
, registry
;
7142 struct font_name
**fonts
;
7147 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
7150 /* Try alternative font families. */
7151 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
7154 for (alter
= XCDR (alter
);
7155 CONSP (alter
) && nfonts
== 0;
7156 alter
= XCDR (alter
))
7158 if (STRINGP (XCAR (alter
)))
7159 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
7163 /* Try all scalable fonts before giving up. */
7164 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
7166 int count
= SPECPDL_INDEX ();
7167 specbind (Qscalable_fonts_allowed
, Qt
);
7168 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
7169 unbind_to (count
, Qnil
);
7176 /* Get a list of matching fonts on frame F.
7178 PATTERN, if a string, specifies a font name pattern to match while
7179 ignoring FAMILY and REGISTRY.
7181 FAMILY, if a list, specifies a list of font families to try.
7183 REGISTRY, if a list, specifies a list of font registries and
7186 Return in *FONTS a pointer to a vector of font_name structures for
7187 the fonts matched. Value is the number of fonts found. */
7190 try_font_list (f
, pattern
, family
, registry
, fonts
)
7192 Lisp_Object pattern
, family
, registry
;
7193 struct font_name
**fonts
;
7197 if (STRINGP (pattern
))
7199 nfonts
= font_list (f
, pattern
, Qnil
, Qnil
, fonts
);
7200 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
7202 int count
= SPECPDL_INDEX ();
7203 specbind (Qscalable_fonts_allowed
, Qt
);
7204 nfonts
= font_list (f
, pattern
, Qnil
, Qnil
, fonts
);
7205 unbind_to (count
, Qnil
);
7213 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
7215 for (tail
= family
; ! nfonts
&& CONSP (tail
); tail
= XCDR (tail
))
7216 nfonts
= try_alternative_families (f
, XCAR (tail
), registry
, fonts
);
7218 /* Try font family of the default face or "fixed". */
7219 if (nfonts
== 0 && !NILP (family
))
7221 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7223 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
7225 family
= build_string ("fixed");
7226 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
7229 /* Try any family with the given registry. */
7230 if (nfonts
== 0 && !NILP (family
))
7231 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
7238 /* Return the fontset id of the base fontset name or alias name given
7239 by the fontset attribute of ATTRS. Value is -1 if the fontset
7240 attribute of ATTRS doesn't name a fontset. */
7243 face_fontset (attrs
)
7248 name
= attrs
[LFACE_FONTSET_INDEX
];
7249 if (!STRINGP (name
))
7251 return fs_query_fontset (name
, 0);
7255 /* Choose a name of font to use on frame F to display characters with
7256 Lisp face attributes specified by ATTRS. The font name is
7257 determined by the font-related attributes in ATTRS and FONT-SPEC
7260 When we are choosing a font for ASCII characters, FONT-SPEC is
7261 always nil. Otherwise FONT-SPEC is a list
7262 [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ]
7263 or a string specifying a font name pattern.
7265 If NEEDS_OVERSTRIKE is not NULL, a boolean is returned in it to
7266 indicate whether the resulting font should be drawn using
7267 overstrike to simulate bold-face.
7269 Value is the font name which is allocated from the heap and must be
7270 freed by the caller. */
7273 choose_face_font (f
, attrs
, font_spec
, needs_overstrike
)
7276 Lisp_Object font_spec
;
7277 int *needs_overstrike
;
7279 Lisp_Object pattern
, family
, adstyle
, registry
;
7280 char *font_name
= NULL
;
7281 struct font_name
*fonts
;
7284 if (needs_overstrike
)
7285 *needs_overstrike
= 0;
7287 /* If we are choosing an ASCII font and a font name is explicitly
7288 specified in ATTRS, return it. */
7289 if (NILP (font_spec
) && STRINGP (attrs
[LFACE_FONT_INDEX
]))
7290 return xstrdup (SDATA (attrs
[LFACE_FONT_INDEX
]));
7292 if (NILP (attrs
[LFACE_FAMILY_INDEX
]))
7295 family
= Fcons (attrs
[LFACE_FAMILY_INDEX
], Qnil
);
7297 /* Decide FAMILY, ADSTYLE, and REGISTRY from FONT_SPEC. But,
7298 ADSTYLE is not used in the font selector for the moment. */
7299 if (VECTORP (font_spec
))
7302 if (STRINGP (AREF (font_spec
, FONT_SPEC_FAMILY_INDEX
)))
7303 family
= Fcons (AREF (font_spec
, FONT_SPEC_FAMILY_INDEX
), family
);
7304 adstyle
= AREF (font_spec
, FONT_SPEC_ADSTYLE_INDEX
);
7305 registry
= Fcons (AREF (font_spec
, FONT_SPEC_REGISTRY_INDEX
), Qnil
);
7307 else if (STRINGP (font_spec
))
7309 pattern
= font_spec
;
7316 /* We are choosing an ASCII font. By default, use the registry
7317 name "iso8859-1". But, if the registry name of the ASCII
7318 font specified in the fontset of ATTRS is not "iso8859-1"
7319 (e.g "iso10646-1"), use also that name with higher
7321 int fontset
= face_fontset (attrs
);
7324 struct font_name font
;
7328 registry
= Fcons (build_string ("iso8859-1"), Qnil
);
7330 ascii
= fontset_ascii (fontset
);
7331 len
= SBYTES (ascii
);
7333 || strcmp (SDATA (ascii
) + len
- 9, "iso8859-1"))
7335 font
.name
= LSTRDUPA (ascii
);
7336 /* Check if the name is in XLFD. */
7337 if (split_font_name (f
, &font
, 0))
7339 font
.fields
[XLFD_ENCODING
][-1] = '-';
7340 registry
= Fcons (build_string (font
.fields
[XLFD_REGISTRY
]),
7346 /* Get a list of fonts matching that pattern and choose the
7347 best match for the specified face attributes from it. */
7348 nfonts
= try_font_list (f
, pattern
, family
, registry
, &fonts
);
7349 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, NILP (font_spec
),
7354 #endif /* HAVE_WINDOW_SYSTEM */
7358 /***********************************************************************
7360 ***********************************************************************/
7362 /* Realize basic faces on frame F. Value is zero if frame parameters
7363 of F don't contain enough information needed to realize the default
7367 realize_basic_faces (f
)
7371 int count
= SPECPDL_INDEX ();
7373 /* Block input here so that we won't be surprised by an X expose
7374 event, for instance, without having the faces set up. */
7376 specbind (Qscalable_fonts_allowed
, Qt
);
7378 if (realize_default_face (f
))
7380 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
7381 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
7382 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
7383 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
7384 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
7385 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
7386 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
7387 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
7388 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
7389 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
7390 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
7392 /* Reflect changes in the `menu' face in menu bars. */
7393 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
7395 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
7396 #ifdef USE_X_TOOLKIT
7397 x_update_menu_appearance (f
);
7404 unbind_to (count
, Qnil
);
7410 /* Realize the default face on frame F. If the face is not fully
7411 specified, make it fully-specified. Attributes of the default face
7412 that are not explicitly specified are taken from frame parameters. */
7415 realize_default_face (f
)
7418 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
7420 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7421 Lisp_Object frame_font
;
7424 /* If the `default' face is not yet known, create it. */
7425 lface
= lface_from_face_name (f
, Qdefault
, 0);
7429 XSETFRAME (frame
, f
);
7430 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
7434 #ifdef HAVE_WINDOW_SYSTEM
7435 if (FRAME_WINDOW_P (f
))
7437 #ifdef USE_FONT_BACKEND
7438 if (enable_font_backend
)
7440 frame_font
= font_find_object (FRAME_FONT_OBJECT (f
));
7441 xassert (FONT_OBJECT_P (frame_font
));
7442 set_lface_from_font_and_fontset (f
, lface
, frame_font
,
7444 f
->default_face_done_p
);
7448 #endif /* USE_FONT_BACKEND */
7449 /* Set frame_font to the value of the `font' frame parameter. */
7450 frame_font
= Fassq (Qfont
, f
->param_alist
);
7451 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
7452 frame_font
= XCDR (frame_font
);
7453 set_lface_from_font_name (f
, lface
, frame_font
,
7454 f
->default_face_done_p
, 1);
7455 #ifdef USE_FONT_BACKEND
7457 #endif /* USE_FONT_BACKEND */
7458 f
->default_face_done_p
= 1;
7460 #endif /* HAVE_WINDOW_SYSTEM */
7462 if (!FRAME_WINDOW_P (f
))
7464 LFACE_FAMILY (lface
) = build_string ("default");
7465 LFACE_SWIDTH (lface
) = Qnormal
;
7466 LFACE_HEIGHT (lface
) = make_number (1);
7467 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
7468 LFACE_WEIGHT (lface
) = Qnormal
;
7469 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
7470 LFACE_SLANT (lface
) = Qnormal
;
7471 LFACE_AVGWIDTH (lface
) = Qunspecified
;
7474 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
7475 LFACE_UNDERLINE (lface
) = Qnil
;
7477 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
7478 LFACE_OVERLINE (lface
) = Qnil
;
7480 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
7481 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
7483 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
7484 LFACE_BOX (lface
) = Qnil
;
7486 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
7487 LFACE_INVERSE (lface
) = Qnil
;
7489 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
7491 /* This function is called so early that colors are not yet
7492 set in the frame parameter list. */
7493 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
7495 if (CONSP (color
) && STRINGP (XCDR (color
)))
7496 LFACE_FOREGROUND (lface
) = XCDR (color
);
7497 else if (FRAME_WINDOW_P (f
))
7499 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7500 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
7505 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
7507 /* This function is called so early that colors are not yet
7508 set in the frame parameter list. */
7509 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
7510 if (CONSP (color
) && STRINGP (XCDR (color
)))
7511 LFACE_BACKGROUND (lface
) = XCDR (color
);
7512 else if (FRAME_WINDOW_P (f
))
7514 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7515 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
7520 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
7521 LFACE_STIPPLE (lface
) = Qnil
;
7523 /* Realize the face; it must be fully-specified now. */
7524 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
7525 check_lface (lface
);
7526 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
7527 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
7529 #ifdef HAVE_WINDOW_SYSTEM
7530 #ifdef HAVE_X_WINDOWS
7531 if (face
->font
!= FRAME_FONT (f
))
7533 /* This can happen when making a frame on a display that does
7534 not support the default font. */
7538 /* Otherwise, the font specified for the frame was not
7539 acceptable as a font for the default face (perhaps because
7540 auto-scaled fonts are rejected), so we must adjust the frame
7542 x_set_font (f
, build_string (face
->font_name
), Qnil
);
7544 #endif /* HAVE_X_WINDOWS */
7545 #endif /* HAVE_WINDOW_SYSTEM */
7550 /* Realize basic faces other than the default face in face cache C.
7551 SYMBOL is the face name, ID is the face id the realized face must
7552 have. The default face must have been realized already. */
7555 realize_named_face (f
, symbol
, id
)
7560 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
7561 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
7562 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7563 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
7564 struct face
*new_face
;
7566 /* The default face must exist and be fully specified. */
7567 get_lface_attributes (f
, Qdefault
, attrs
, 1);
7568 check_lface_attrs (attrs
);
7569 xassert (lface_fully_specified_p (attrs
));
7571 /* If SYMBOL isn't know as a face, create it. */
7575 XSETFRAME (frame
, f
);
7576 lface
= Finternal_make_lisp_face (symbol
, frame
);
7579 /* Merge SYMBOL's face with the default face. */
7580 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
7581 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
7583 /* Realize the face. */
7584 new_face
= realize_face (c
, attrs
, id
);
7588 /* Realize the fully-specified face with attributes ATTRS in face
7589 cache CACHE for ASCII characters. If FORMER_FACE_ID is
7590 non-negative, it is an ID of face to remove before caching the new
7591 face. Value is a pointer to the newly created realized face. */
7593 static struct face
*
7594 realize_face (cache
, attrs
, former_face_id
)
7595 struct face_cache
*cache
;
7601 /* LFACE must be fully specified. */
7602 xassert (cache
!= NULL
);
7603 check_lface_attrs (attrs
);
7605 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7607 /* Remove the former face. */
7608 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7609 uncache_face (cache
, former_face
);
7610 free_realized_face (cache
->f
, former_face
);
7613 if (FRAME_WINDOW_P (cache
->f
))
7614 face
= realize_x_face (cache
, attrs
);
7615 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7616 face
= realize_tty_face (cache
, attrs
);
7620 /* Insert the new face. */
7621 cache_face (cache
, face
, lface_hash (attrs
));
7626 #ifdef HAVE_WINDOW_SYSTEM
7627 /* Realize the fully-specified face that has the same attributes as
7628 BASE_FACE except for the font on frame F. If FONT_ID is not
7629 negative, it is an ID number of an already opened font that should
7630 be used by the face. If FONT_ID is negative, the face has no font,
7631 i.e., characters are displayed by empty boxes. */
7633 static struct face
*
7634 realize_non_ascii_face (f
, font_id
, base_face
)
7637 struct face
*base_face
;
7639 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
7641 struct font_info
*font_info
;
7643 face
= (struct face
*) xmalloc (sizeof *face
);
7646 #ifdef USE_FONT_BACKEND
7650 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7651 face
->colors_copied_bitwise_p
= 1;
7653 face
->font_info_id
= font_id
;
7656 font_info
= FONT_INFO_FROM_ID (f
, font_id
);
7657 face
->font
= font_info
->font
;
7658 face
->font_name
= font_info
->full_name
;
7663 face
->font_name
= NULL
;
7668 cache_face (cache
, face
, face
->hash
);
7672 #endif /* HAVE_WINDOW_SYSTEM */
7675 /* Realize the fully-specified face with attributes ATTRS in face
7676 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
7677 the new face doesn't share font with the default face, a fontname
7678 is allocated from the heap and set in `font_name' of the new face,
7679 but it is not yet loaded here. Value is a pointer to the newly
7680 created realized face. */
7682 static struct face
*
7683 realize_x_face (cache
, attrs
)
7684 struct face_cache
*cache
;
7687 struct face
*face
= NULL
;
7688 #ifdef HAVE_WINDOW_SYSTEM
7689 struct face
*default_face
;
7691 Lisp_Object stipple
, overline
, strike_through
, box
;
7693 xassert (FRAME_WINDOW_P (cache
->f
));
7695 /* Allocate a new realized face. */
7696 face
= make_realized_face (attrs
);
7697 face
->ascii_face
= face
;
7701 /* Determine the font to use. Most of the time, the font will be
7702 the same as the font of the default face, so try that first. */
7703 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7705 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7707 face
->font
= default_face
->font
;
7708 face
->font_info_id
= default_face
->font_info_id
;
7709 #ifdef USE_FONT_BACKEND
7710 face
->font_info
= default_face
->font_info
;
7711 #endif /* USE_FONT_BACKEND */
7712 face
->font_name
= default_face
->font_name
;
7714 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
7718 /* If the face attribute ATTRS specifies a fontset, use it as
7719 the base of a new realized fontset. Otherwise, use the same
7720 base fontset as of the default face. The base determines
7721 registry and encoding of a font. It may also determine
7722 foundry and family. The other fields of font name pattern
7723 are constructed from ATTRS. */
7724 int fontset
= face_fontset (attrs
);
7726 /* If we are realizing the default face, ATTRS should specify a
7727 fontset. In other words, if FONTSET is -1, we are not
7728 realizing the default face, thus the default face should have
7729 already been realized. */
7731 fontset
= default_face
->fontset
;
7734 #ifdef USE_FONT_BACKEND
7735 if (enable_font_backend
)
7736 font_load_for_face (f
, face
);
7738 #endif /* USE_FONT_BACKEND */
7739 load_face_font (f
, face
);
7741 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
7746 /* Load colors, and set remaining attributes. */
7748 load_face_colors (f
, face
, attrs
);
7751 box
= attrs
[LFACE_BOX_INDEX
];
7754 /* A simple box of line width 1 drawn in color given by
7756 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7758 face
->box
= FACE_SIMPLE_BOX
;
7759 face
->box_line_width
= 1;
7761 else if (INTEGERP (box
))
7763 /* Simple box of specified line width in foreground color of the
7765 xassert (XINT (box
) != 0);
7766 face
->box
= FACE_SIMPLE_BOX
;
7767 face
->box_line_width
= XINT (box
);
7768 face
->box_color
= face
->foreground
;
7769 face
->box_color_defaulted_p
= 1;
7771 else if (CONSP (box
))
7773 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7774 being one of `raised' or `sunken'. */
7775 face
->box
= FACE_SIMPLE_BOX
;
7776 face
->box_color
= face
->foreground
;
7777 face
->box_color_defaulted_p
= 1;
7778 face
->box_line_width
= 1;
7782 Lisp_Object keyword
, value
;
7784 keyword
= XCAR (box
);
7792 if (EQ (keyword
, QCline_width
))
7794 if (INTEGERP (value
) && XINT (value
) != 0)
7795 face
->box_line_width
= XINT (value
);
7797 else if (EQ (keyword
, QCcolor
))
7799 if (STRINGP (value
))
7801 face
->box_color
= load_color (f
, face
, value
,
7803 face
->use_box_color_for_shadows_p
= 1;
7806 else if (EQ (keyword
, QCstyle
))
7808 if (EQ (value
, Qreleased_button
))
7809 face
->box
= FACE_RAISED_BOX
;
7810 else if (EQ (value
, Qpressed_button
))
7811 face
->box
= FACE_SUNKEN_BOX
;
7816 /* Text underline, overline, strike-through. */
7818 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7820 /* Use default color (same as foreground color). */
7821 face
->underline_p
= 1;
7822 face
->underline_defaulted_p
= 1;
7823 face
->underline_color
= 0;
7825 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7827 /* Use specified color. */
7828 face
->underline_p
= 1;
7829 face
->underline_defaulted_p
= 0;
7830 face
->underline_color
7831 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7832 LFACE_UNDERLINE_INDEX
);
7834 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7836 face
->underline_p
= 0;
7837 face
->underline_defaulted_p
= 0;
7838 face
->underline_color
= 0;
7841 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7842 if (STRINGP (overline
))
7844 face
->overline_color
7845 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7846 LFACE_OVERLINE_INDEX
);
7847 face
->overline_p
= 1;
7849 else if (EQ (overline
, Qt
))
7851 face
->overline_color
= face
->foreground
;
7852 face
->overline_color_defaulted_p
= 1;
7853 face
->overline_p
= 1;
7856 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7857 if (STRINGP (strike_through
))
7859 face
->strike_through_color
7860 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7861 LFACE_STRIKE_THROUGH_INDEX
);
7862 face
->strike_through_p
= 1;
7864 else if (EQ (strike_through
, Qt
))
7866 face
->strike_through_color
= face
->foreground
;
7867 face
->strike_through_color_defaulted_p
= 1;
7868 face
->strike_through_p
= 1;
7871 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7872 if (!NILP (stipple
))
7873 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7874 #endif /* HAVE_WINDOW_SYSTEM */
7880 /* Map a specified color of face FACE on frame F to a tty color index.
7881 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7882 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7883 default foreground/background colors. */
7886 map_tty_color (f
, face
, idx
, defaulted
)
7889 enum lface_attribute_index idx
;
7892 Lisp_Object frame
, color
, def
;
7893 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7894 unsigned long default_pixel
, default_other_pixel
, pixel
;
7896 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7900 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7901 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7905 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7906 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7909 XSETFRAME (frame
, f
);
7910 color
= face
->lface
[idx
];
7914 && CONSP (Vtty_defined_color_alist
)
7915 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7918 /* Associations in tty-defined-color-alist are of the form
7919 (NAME INDEX R G B). We need the INDEX part. */
7920 pixel
= XINT (XCAR (XCDR (def
)));
7923 if (pixel
== default_pixel
&& STRINGP (color
))
7925 pixel
= load_color (f
, face
, color
, idx
);
7927 #if defined (MSDOS) || defined (WINDOWSNT)
7928 /* If the foreground of the default face is the default color,
7929 use the foreground color defined by the frame. */
7931 if (FRAME_MSDOS_P (f
))
7934 if (pixel
== default_pixel
7935 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7938 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7940 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7941 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7944 else if (pixel
== default_other_pixel
)
7947 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7949 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7950 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7956 #endif /* MSDOS or WINDOWSNT */
7960 face
->foreground
= pixel
;
7962 face
->background
= pixel
;
7966 /* Realize the fully-specified face with attributes ATTRS in face
7967 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
7968 Value is a pointer to the newly created realized face. */
7970 static struct face
*
7971 realize_tty_face (cache
, attrs
)
7972 struct face_cache
*cache
;
7977 int face_colors_defaulted
= 0;
7978 struct frame
*f
= cache
->f
;
7980 /* Frame must be a termcap frame. */
7981 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7983 /* Allocate a new realized face. */
7984 face
= make_realized_face (attrs
);
7985 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7987 /* Map face attributes to TTY appearances. We map slant to
7988 dimmed text because we want italic text to appear differently
7989 and because dimmed text is probably used infrequently. */
7990 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7991 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7993 if (weight
> XLFD_WEIGHT_MEDIUM
)
7994 face
->tty_bold_p
= 1;
7995 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7996 face
->tty_dim_p
= 1;
7997 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7998 face
->tty_underline_p
= 1;
7999 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
8000 face
->tty_reverse_p
= 1;
8002 /* Map color names to color indices. */
8003 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
8004 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
8006 /* Swap colors if face is inverse-video. If the colors are taken
8007 from the frame colors, they are already inverted, since the
8008 frame-creation function calls x-handle-reverse-video. */
8009 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
8011 unsigned long tem
= face
->foreground
;
8012 face
->foreground
= face
->background
;
8013 face
->background
= tem
;
8016 if (tty_suppress_bold_inverse_default_colors_p
8018 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
8019 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
8020 face
->tty_bold_p
= 0;
8026 DEFUN ("tty-suppress-bold-inverse-default-colors",
8027 Ftty_suppress_bold_inverse_default_colors
,
8028 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
8029 doc
: /* Suppress/allow boldness of faces with inverse default colors.
8030 SUPPRESS non-nil means suppress it.
8031 This affects bold faces on TTYs whose foreground is the default background
8032 color of the display and whose background is the default foreground color.
8033 For such faces, the bold face attribute is ignored if this variable
8036 Lisp_Object suppress
;
8038 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
8039 ++face_change_count
;
8045 /***********************************************************************
8047 ***********************************************************************/
8049 /* Return the ID of the face to use to display character CH with face
8050 property PROP on frame F in current_buffer. */
8053 compute_char_face (f
, ch
, prop
)
8060 if (NILP (current_buffer
->enable_multibyte_characters
))
8065 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
8066 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
8070 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
8071 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
8072 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
8073 merge_face_ref (f
, prop
, attrs
, 1, 0);
8074 face_id
= lookup_face (f
, attrs
);
8080 /* Return the face ID associated with buffer position POS for
8081 displaying ASCII characters. Return in *ENDPTR the position at
8082 which a different face is needed, as far as text properties and
8083 overlays are concerned. W is a window displaying current_buffer.
8085 REGION_BEG, REGION_END delimit the region, so it can be
8088 LIMIT is a position not to scan beyond. That is to limit the time
8089 this function can take.
8091 If MOUSE is non-zero, use the character's mouse-face, not its face.
8093 The face returned is suitable for displaying ASCII characters. */
8096 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
8097 endptr
, limit
, mouse
)
8100 int region_beg
, region_end
;
8105 struct frame
*f
= XFRAME (w
->frame
);
8106 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
8107 Lisp_Object prop
, position
;
8109 Lisp_Object
*overlay_vec
;
8112 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
8113 Lisp_Object limit1
, end
;
8114 struct face
*default_face
;
8116 /* W must display the current buffer. We could write this function
8117 to use the frame and buffer of W, but right now it doesn't. */
8118 /* xassert (XBUFFER (w->buffer) == current_buffer); */
8120 XSETFRAME (frame
, f
);
8121 XSETFASTINT (position
, pos
);
8124 if (pos
< region_beg
&& region_beg
< endpos
)
8125 endpos
= region_beg
;
8127 /* Get the `face' or `mouse_face' text property at POS, and
8128 determine the next position at which the property changes. */
8129 prop
= Fget_text_property (position
, propname
, w
->buffer
);
8130 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
8131 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
8133 endpos
= XINT (end
);
8135 /* Look at properties from overlays. */
8139 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
8140 if (next_overlay
< endpos
)
8141 endpos
= next_overlay
;
8146 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
8148 /* Optimize common cases where we can use the default face. */
8151 && !(pos
>= region_beg
&& pos
< region_end
))
8152 return DEFAULT_FACE_ID
;
8154 /* Begin with attributes from the default face. */
8155 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
8157 /* Merge in attributes specified via text properties. */
8159 merge_face_ref (f
, prop
, attrs
, 1, 0);
8161 /* Now merge the overlay data. */
8162 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
8163 for (i
= 0; i
< noverlays
; i
++)
8168 prop
= Foverlay_get (overlay_vec
[i
], propname
);
8170 merge_face_ref (f
, prop
, attrs
, 1, 0);
8172 oend
= OVERLAY_END (overlay_vec
[i
]);
8173 oendpos
= OVERLAY_POSITION (oend
);
8174 if (oendpos
< endpos
)
8178 /* If in the region, merge in the region face. */
8179 if (pos
>= region_beg
&& pos
< region_end
)
8181 merge_named_face (f
, Qregion
, attrs
, 0);
8183 if (region_end
< endpos
)
8184 endpos
= region_end
;
8189 /* Look up a realized face with the given face attributes,
8190 or realize a new one for ASCII characters. */
8191 return lookup_face (f
, attrs
);
8195 /* Compute the face at character position POS in Lisp string STRING on
8196 window W, for ASCII characters.
8198 If STRING is an overlay string, it comes from position BUFPOS in
8199 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
8200 not an overlay string. W must display the current buffer.
8201 REGION_BEG and REGION_END give the start and end positions of the
8202 region; both are -1 if no region is visible.
8204 BASE_FACE_ID is the id of a face to merge with. For strings coming
8205 from overlays or the `display' property it is the face at BUFPOS.
8207 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
8209 Set *ENDPTR to the next position where to check for faces in
8210 STRING; -1 if the face is constant from POS to the end of the
8213 Value is the id of the face to use. The face returned is suitable
8214 for displaying ASCII characters. */
8217 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
8218 region_end
, endptr
, base_face_id
, mouse_p
)
8222 int region_beg
, region_end
;
8224 enum face_id base_face_id
;
8227 Lisp_Object prop
, position
, end
, limit
;
8228 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
8229 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
8230 struct face
*base_face
;
8231 int multibyte_p
= STRING_MULTIBYTE (string
);
8232 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
8234 /* Get the value of the face property at the current position within
8235 STRING. Value is nil if there is no face property. */
8236 XSETFASTINT (position
, pos
);
8237 prop
= Fget_text_property (position
, prop_name
, string
);
8239 /* Get the next position at which to check for faces. Value of end
8240 is nil if face is constant all the way to the end of the string.
8241 Otherwise it is a string position where to check faces next.
8242 Limit is the maximum position up to which to check for property
8243 changes in Fnext_single_property_change. Strings are usually
8244 short, so set the limit to the end of the string. */
8245 XSETFASTINT (limit
, SCHARS (string
));
8246 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
8248 *endptr
= XFASTINT (end
);
8252 base_face
= FACE_FROM_ID (f
, base_face_id
);
8253 xassert (base_face
);
8255 /* Optimize the default case that there is no face property and we
8256 are not in the region. */
8258 && (base_face_id
!= DEFAULT_FACE_ID
8259 /* BUFPOS <= 0 means STRING is not an overlay string, so
8260 that the region doesn't have to be taken into account. */
8262 || bufpos
< region_beg
8263 || bufpos
>= region_end
)
8265 /* We can't realize faces for different charsets differently
8266 if we don't have fonts, so we can stop here if not working
8267 on a window-system frame. */
8268 || !FRAME_WINDOW_P (f
)
8269 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
8270 return base_face
->id
;
8272 /* Begin with attributes from the base face. */
8273 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
8275 /* Merge in attributes specified via text properties. */
8277 merge_face_ref (f
, prop
, attrs
, 1, 0);
8279 /* If in the region, merge in the region face. */
8281 && bufpos
>= region_beg
8282 && bufpos
< region_end
)
8283 merge_named_face (f
, Qregion
, attrs
, 0);
8285 /* Look up a realized face with the given face attributes,
8286 or realize a new one for ASCII characters. */
8287 return lookup_face (f
, attrs
);
8291 /* Merge a face into a realized face.
8293 F is frame where faces are (to be) realized.
8295 FACE_NAME is named face to merge.
8297 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
8299 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
8301 BASE_FACE_ID is realized face to merge into.
8307 merge_faces (f
, face_name
, face_id
, base_face_id
)
8309 Lisp_Object face_name
;
8310 int face_id
, base_face_id
;
8312 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
8313 struct face
*base_face
;
8315 base_face
= FACE_FROM_ID (f
, base_face_id
);
8317 return base_face_id
;
8319 if (EQ (face_name
, Qt
))
8321 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
8322 return base_face_id
;
8323 face_name
= lface_id_to_name
[face_id
];
8324 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 1);
8327 return base_face_id
;
8330 /* Begin with attributes from the base face. */
8331 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
8333 if (!NILP (face_name
))
8335 if (!merge_named_face (f
, face_name
, attrs
, 0))
8336 return base_face_id
;
8342 return base_face_id
;
8343 face
= FACE_FROM_ID (f
, face_id
);
8345 return base_face_id
;
8346 merge_face_vectors (f
, face
->lface
, attrs
, 0);
8349 /* Look up a realized face with the given face attributes,
8350 or realize a new one for ASCII characters. */
8351 return lookup_face (f
, attrs
);
8355 /***********************************************************************
8357 ***********************************************************************/
8361 /* Print the contents of the realized face FACE to stderr. */
8364 dump_realized_face (face
)
8367 fprintf (stderr
, "ID: %d\n", face
->id
);
8368 #ifdef HAVE_X_WINDOWS
8369 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
8371 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
8373 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
8374 fprintf (stderr
, "background: 0x%lx (%s)\n",
8376 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
8377 fprintf (stderr
, "font_name: %s (%s)\n",
8379 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
8380 #ifdef HAVE_X_WINDOWS
8381 fprintf (stderr
, "font = %p\n", face
->font
);
8383 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
8384 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
8385 fprintf (stderr
, "underline: %d (%s)\n",
8387 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
8388 fprintf (stderr
, "hash: %d\n", face
->hash
);
8392 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
8400 fprintf (stderr
, "font selection order: ");
8401 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
8402 fprintf (stderr
, "%d ", font_sort_order
[i
]);
8403 fprintf (stderr
, "\n");
8405 fprintf (stderr
, "alternative fonts: ");
8406 debug_print (Vface_alternative_font_family_alist
);
8407 fprintf (stderr
, "\n");
8409 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
8410 Fdump_face (make_number (i
));
8416 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
8418 error ("Not a valid face");
8419 dump_realized_face (face
);
8426 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
8427 0, 0, 0, doc
: /* */)
8430 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
8431 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
8432 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
8436 #endif /* GLYPH_DEBUG != 0 */
8440 /***********************************************************************
8442 ***********************************************************************/
8447 Qface
= intern ("face");
8449 Qface_no_inherit
= intern ("face-no-inherit");
8450 staticpro (&Qface_no_inherit
);
8451 Qbitmap_spec_p
= intern ("bitmap-spec-p");
8452 staticpro (&Qbitmap_spec_p
);
8453 Qframe_set_background_mode
= intern ("frame-set-background-mode");
8454 staticpro (&Qframe_set_background_mode
);
8456 /* Lisp face attribute keywords. */
8457 QCfamily
= intern (":family");
8458 staticpro (&QCfamily
);
8459 QCheight
= intern (":height");
8460 staticpro (&QCheight
);
8461 QCweight
= intern (":weight");
8462 staticpro (&QCweight
);
8463 QCslant
= intern (":slant");
8464 staticpro (&QCslant
);
8465 QCunderline
= intern (":underline");
8466 staticpro (&QCunderline
);
8467 QCinverse_video
= intern (":inverse-video");
8468 staticpro (&QCinverse_video
);
8469 QCreverse_video
= intern (":reverse-video");
8470 staticpro (&QCreverse_video
);
8471 QCforeground
= intern (":foreground");
8472 staticpro (&QCforeground
);
8473 QCbackground
= intern (":background");
8474 staticpro (&QCbackground
);
8475 QCstipple
= intern (":stipple");
8476 staticpro (&QCstipple
);
8477 QCwidth
= intern (":width");
8478 staticpro (&QCwidth
);
8479 QCfont
= intern (":font");
8480 staticpro (&QCfont
);
8481 QCfontset
= intern (":fontset");
8482 staticpro (&QCfontset
);
8483 QCbold
= intern (":bold");
8484 staticpro (&QCbold
);
8485 QCitalic
= intern (":italic");
8486 staticpro (&QCitalic
);
8487 QCoverline
= intern (":overline");
8488 staticpro (&QCoverline
);
8489 QCstrike_through
= intern (":strike-through");
8490 staticpro (&QCstrike_through
);
8491 QCbox
= intern (":box");
8493 QCinherit
= intern (":inherit");
8494 staticpro (&QCinherit
);
8496 /* Symbols used for Lisp face attribute values. */
8497 QCcolor
= intern (":color");
8498 staticpro (&QCcolor
);
8499 QCline_width
= intern (":line-width");
8500 staticpro (&QCline_width
);
8501 QCstyle
= intern (":style");
8502 staticpro (&QCstyle
);
8503 Qreleased_button
= intern ("released-button");
8504 staticpro (&Qreleased_button
);
8505 Qpressed_button
= intern ("pressed-button");
8506 staticpro (&Qpressed_button
);
8507 Qnormal
= intern ("normal");
8508 staticpro (&Qnormal
);
8509 Qultra_light
= intern ("ultra-light");
8510 staticpro (&Qultra_light
);
8511 Qextra_light
= intern ("extra-light");
8512 staticpro (&Qextra_light
);
8513 Qlight
= intern ("light");
8514 staticpro (&Qlight
);
8515 Qsemi_light
= intern ("semi-light");
8516 staticpro (&Qsemi_light
);
8517 Qsemi_bold
= intern ("semi-bold");
8518 staticpro (&Qsemi_bold
);
8519 Qbold
= intern ("bold");
8521 Qextra_bold
= intern ("extra-bold");
8522 staticpro (&Qextra_bold
);
8523 Qultra_bold
= intern ("ultra-bold");
8524 staticpro (&Qultra_bold
);
8525 Qoblique
= intern ("oblique");
8526 staticpro (&Qoblique
);
8527 Qitalic
= intern ("italic");
8528 staticpro (&Qitalic
);
8529 Qreverse_oblique
= intern ("reverse-oblique");
8530 staticpro (&Qreverse_oblique
);
8531 Qreverse_italic
= intern ("reverse-italic");
8532 staticpro (&Qreverse_italic
);
8533 Qultra_condensed
= intern ("ultra-condensed");
8534 staticpro (&Qultra_condensed
);
8535 Qextra_condensed
= intern ("extra-condensed");
8536 staticpro (&Qextra_condensed
);
8537 Qcondensed
= intern ("condensed");
8538 staticpro (&Qcondensed
);
8539 Qsemi_condensed
= intern ("semi-condensed");
8540 staticpro (&Qsemi_condensed
);
8541 Qsemi_expanded
= intern ("semi-expanded");
8542 staticpro (&Qsemi_expanded
);
8543 Qexpanded
= intern ("expanded");
8544 staticpro (&Qexpanded
);
8545 Qextra_expanded
= intern ("extra-expanded");
8546 staticpro (&Qextra_expanded
);
8547 Qultra_expanded
= intern ("ultra-expanded");
8548 staticpro (&Qultra_expanded
);
8549 Qbackground_color
= intern ("background-color");
8550 staticpro (&Qbackground_color
);
8551 Qforeground_color
= intern ("foreground-color");
8552 staticpro (&Qforeground_color
);
8553 Qunspecified
= intern ("unspecified");
8554 staticpro (&Qunspecified
);
8555 Qignore_defface
= intern (":ignore-defface");
8556 staticpro (&Qignore_defface
);
8558 Qface_alias
= intern ("face-alias");
8559 staticpro (&Qface_alias
);
8560 Qdefault
= intern ("default");
8561 staticpro (&Qdefault
);
8562 Qtool_bar
= intern ("tool-bar");
8563 staticpro (&Qtool_bar
);
8564 Qregion
= intern ("region");
8565 staticpro (&Qregion
);
8566 Qfringe
= intern ("fringe");
8567 staticpro (&Qfringe
);
8568 Qheader_line
= intern ("header-line");
8569 staticpro (&Qheader_line
);
8570 Qscroll_bar
= intern ("scroll-bar");
8571 staticpro (&Qscroll_bar
);
8572 Qmenu
= intern ("menu");
8574 Qcursor
= intern ("cursor");
8575 staticpro (&Qcursor
);
8576 Qborder
= intern ("border");
8577 staticpro (&Qborder
);
8578 Qmouse
= intern ("mouse");
8579 staticpro (&Qmouse
);
8580 Qmode_line_inactive
= intern ("mode-line-inactive");
8581 staticpro (&Qmode_line_inactive
);
8582 Qvertical_border
= intern ("vertical-border");
8583 staticpro (&Qvertical_border
);
8584 Qtty_color_desc
= intern ("tty-color-desc");
8585 staticpro (&Qtty_color_desc
);
8586 Qtty_color_standard_values
= intern ("tty-color-standard-values");
8587 staticpro (&Qtty_color_standard_values
);
8588 Qtty_color_by_index
= intern ("tty-color-by-index");
8589 staticpro (&Qtty_color_by_index
);
8590 Qtty_color_alist
= intern ("tty-color-alist");
8591 staticpro (&Qtty_color_alist
);
8592 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
8593 staticpro (&Qscalable_fonts_allowed
);
8595 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
8596 staticpro (&Vparam_value_alist
);
8597 Vface_alternative_font_family_alist
= Qnil
;
8598 staticpro (&Vface_alternative_font_family_alist
);
8599 Vface_alternative_font_registry_alist
= Qnil
;
8600 staticpro (&Vface_alternative_font_registry_alist
);
8602 defsubr (&Sinternal_make_lisp_face
);
8603 defsubr (&Sinternal_lisp_face_p
);
8604 defsubr (&Sinternal_set_lisp_face_attribute
);
8605 #ifdef HAVE_WINDOW_SYSTEM
8606 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
8608 defsubr (&Scolor_gray_p
);
8609 defsubr (&Scolor_supported_p
);
8610 defsubr (&Sface_attribute_relative_p
);
8611 defsubr (&Smerge_face_attribute
);
8612 defsubr (&Sinternal_get_lisp_face_attribute
);
8613 defsubr (&Sinternal_lisp_face_attribute_values
);
8614 defsubr (&Sinternal_lisp_face_equal_p
);
8615 defsubr (&Sinternal_lisp_face_empty_p
);
8616 defsubr (&Sinternal_copy_lisp_face
);
8617 defsubr (&Sinternal_merge_in_global_face
);
8618 defsubr (&Sface_font
);
8619 defsubr (&Sframe_face_alist
);
8620 defsubr (&Sdisplay_supports_face_attributes_p
);
8621 defsubr (&Scolor_distance
);
8622 defsubr (&Sinternal_set_font_selection_order
);
8623 defsubr (&Sinternal_set_alternative_font_family_alist
);
8624 defsubr (&Sinternal_set_alternative_font_registry_alist
);
8625 defsubr (&Sface_attributes_as_vector
);
8627 defsubr (&Sdump_face
);
8628 defsubr (&Sshow_face_resources
);
8629 #endif /* GLYPH_DEBUG */
8630 defsubr (&Sclear_face_cache
);
8631 defsubr (&Stty_suppress_bold_inverse_default_colors
);
8633 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
8634 defsubr (&Sdump_colors
);
8637 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
8638 doc
: /* *Limit for font matching.
8639 If an integer > 0, font matching functions won't load more than
8640 that number of fonts when searching for a matching font. */);
8641 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
8643 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
8644 doc
: /* List of global face definitions (for internal use only.) */);
8645 Vface_new_frame_defaults
= Qnil
;
8647 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
8648 doc
: /* *Default stipple pattern used on monochrome displays.
8649 This stipple pattern is used on monochrome displays
8650 instead of shades of gray for a face background color.
8651 See `set-face-stipple' for possible values for this variable. */);
8652 Vface_default_stipple
= build_string ("gray3");
8654 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
8655 doc
: /* An alist of defined terminal colors and their RGB values. */);
8656 Vtty_defined_color_alist
= Qnil
;
8658 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
8659 doc
: /* Allowed scalable fonts.
8660 A value of nil means don't allow any scalable fonts.
8661 A value of t means allow any scalable font.
8662 Otherwise, value must be a list of regular expressions. A font may be
8663 scaled if its name matches a regular expression in the list.
8664 Note that if value is nil, a scalable font might still be used, if no
8665 other font of the appropriate family and registry is available. */);
8666 Vscalable_fonts_allowed
= Qnil
;
8668 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
8669 doc
: /* List of ignored fonts.
8670 Each element is a regular expression that matches names of fonts to
8672 Vface_ignored_fonts
= Qnil
;
8674 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
8675 doc
: /* Alist of fonts vs the rescaling factors.
8676 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
8677 FONT-NAME-PATTERN is a regular expression matching a font name, and
8678 RESCALE-RATIO is a floating point number to specify how much larger
8679 \(or smaller) font we should use. For instance, if a face requests
8680 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
8681 Vface_font_rescale_alist
= Qnil
;
8683 #ifdef HAVE_WINDOW_SYSTEM
8684 defsubr (&Sbitmap_spec_p
);
8685 defsubr (&Sx_list_fonts
);
8686 defsubr (&Sinternal_face_x_get_resource
);
8687 defsubr (&Sx_family_fonts
);
8688 defsubr (&Sx_font_family_list
);
8689 #endif /* HAVE_WINDOW_SYSTEM */
8692 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
8693 (do not change this comment) */