1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation.
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., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, 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 or fontset 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.
75 Faces are frame-local by nature because Emacs allows to define the
76 same named face (face names are symbols) differently for different
77 frames. Each frame has an alist of face definitions for all named
78 faces. The value of a named face in such an alist is a Lisp vector
79 with the symbol `face' in slot 0, and a slot for each of the face
80 attributes mentioned above.
82 There is also a global face alist `Vface_new_frame_defaults'. Face
83 definitions from this list are used to initialize faces of newly
86 A face doesn't have to specify all attributes. Those not specified
87 have a value of `unspecified'. Faces specifying all attributes but
88 the 14th are called `fully-specified'.
93 The display style of a given character in the text is determined by
94 combining several faces. This process is called `face merging'.
95 Any aspect of the display style that isn't specified by overlays or
96 text properties is taken from the `default' face. Since it is made
97 sure that the default face is always fully-specified, face merging
98 always results in a fully-specified face.
103 After all face attributes for a character have been determined by
104 merging faces of that character, that face is `realized'. The
105 realization process maps face attributes to what is physically
106 available on the system where Emacs runs. The result is a
107 `realized face' in form of a struct face which is stored in the
108 face cache of the frame on which it was realized.
110 Face realization is done in the context of the character to display
111 because different fonts may be used for different characters. In
112 other words, for characters that have different font
113 specifications, different realized faces are needed to display
116 Font specification is done by fontsets. See the comment in
117 fontset.c for the details. In the current implementation, all ASCII
118 characters share the same font in a fontset.
120 Faces are at first realized for ASCII characters, and, at that
121 time, assigned a specific realized fontset. Hereafter, we call
122 such a face as `ASCII face'. When a face for a multibyte character
123 is realized, it inherits (thus shares) a fontset of an ASCII face
124 that has the same attributes other than font-related ones.
126 Thus, all realized face have a realized fontset.
131 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
132 font as ASCII characters. That is because it is expected that
133 unibyte text users specify a font that is suitable both for ASCII
134 and raw 8-bit characters.
139 Font selection tries to find the best available matching font for a
140 given (character, face) combination.
142 If the face specifies a fontset name, that fontset determines a
143 pattern for fonts of the given character. If the face specifies a
144 font name or the other font-related attributes, a fontset is
145 realized from the default fontset. In that case, that
146 specification determines a pattern for ASCII characters and the
147 default fontset determines a pattern for multibyte characters.
149 Available fonts on the system on which Emacs runs are then matched
150 against the font pattern. The result of font selection is the best
151 match for the given face attributes in this font list.
153 Font selection can be influenced by the user.
155 1. The user can specify the relative importance he gives the face
156 attributes width, height, weight, and slant by setting
157 face-font-selection-order (faces.el) to a list of face attribute
158 names. The default is '(:width :height :weight :slant), and means
159 that font selection first tries to find a good match for the font
160 width specified by a face, then---within fonts with that
161 width---tries to find a best match for the specified font height,
164 2. Setting face-font-family-alternatives allows the user to
165 specify alternative font families to try if a family specified by a
168 3. Setting face-font-registry-alternatives allows the user to
169 specify all alternative font registries to try for a face
170 specifying a registry.
172 4. Setting face-ignored-fonts allows the user to ignore specific
176 Character composition.
178 Usually, the realization process is already finished when Emacs
179 actually reflects the desired glyph matrix on the screen. However,
180 on displaying a composition (sequence of characters to be composed
181 on the screen), a suitable font for the components of the
182 composition is selected and realized while drawing them on the
183 screen, i.e. the realization process is delayed but in principle
187 Initialization of basic faces.
189 The faces `default', `modeline' are considered `basic faces'.
190 When redisplay happens the first time for a newly created frame,
191 basic faces are realized for CHARSET_ASCII. Frame parameters are
192 used to fill in unspecified attributes of the default face. */
196 #include <sys/types.h>
197 #include <sys/stat.h>
198 #include <stdio.h> /* This needs to be before termchar.h */
202 #include "keyboard.h"
204 #include "termhooks.h"
206 #ifdef HAVE_WINDOW_SYSTEM
208 #endif /* HAVE_WINDOW_SYSTEM */
210 #ifdef HAVE_X_WINDOWS
214 #include <Xm/XmStrDefs.h>
215 #endif /* USE_MOTIF */
216 #endif /* HAVE_X_WINDOWS */
225 /* Redefine X specifics to W32 equivalents to avoid cluttering the
226 code with #ifdef blocks. */
227 #undef FRAME_X_DISPLAY_INFO
228 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
229 #define x_display_info w32_display_info
230 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
231 #define check_x check_w32
232 #define x_list_fonts w32_list_fonts
233 #define GCGraphicsExposures 0
234 #endif /* WINDOWSNT */
238 #define x_display_info mac_display_info
239 #define check_x check_mac
243 #include "dispextern.h"
244 #include "blockinput.h"
246 #include "intervals.h"
247 #include "termchar.h"
249 #ifdef HAVE_X_WINDOWS
251 /* Compensate for a bug in Xos.h on some systems, on which it requires
252 time.h. On some such systems, Xos.h tries to redefine struct
253 timeval and struct timezone if USG is #defined while it is
256 #ifdef XOS_NEEDS_TIME_H
262 #else /* not XOS_NEEDS_TIME_H */
264 #endif /* not XOS_NEEDS_TIME_H */
266 #endif /* HAVE_X_WINDOWS */
270 #define abs(X) ((X) < 0 ? -(X) : (X))
272 /* Number of pt per inch (from the TeXbook). */
274 #define PT_PER_INCH 72.27
276 /* Non-zero if face attribute ATTR is unspecified. */
278 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
280 /* Value is the number of elements of VECTOR. */
282 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
284 /* Make a copy of string S on the stack using alloca. Value is a pointer
287 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
289 /* Make a copy of the contents of Lisp string S on the stack using
290 alloca. Value is a pointer to the copy. */
292 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
294 /* Size of hash table of realized faces in face caches (should be a
297 #define FACE_CACHE_BUCKETS_SIZE 1001
299 /* Keyword symbols used for face attribute names. */
301 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
302 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
303 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
304 Lisp_Object QCreverse_video
;
305 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
307 /* Symbols used for attribute values. */
309 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
310 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
311 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
312 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
313 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
314 Lisp_Object Qultra_expanded
;
315 Lisp_Object Qreleased_button
, Qpressed_button
;
316 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
317 Lisp_Object Qunspecified
;
319 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
321 /* The name of the function to call when the background of the frame
322 has changed, frame_update_face_colors. */
324 Lisp_Object Qframe_update_face_colors
;
326 /* Names of basic faces. */
328 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
329 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
330 Lisp_Object Qmode_line_inactive
;
331 extern Lisp_Object Qmode_line
;
333 /* The symbol `face-alias'. A symbols having that property is an
334 alias for another face. Value of the property is the name of
337 Lisp_Object Qface_alias
;
339 /* Default stipple pattern used on monochrome displays. This stipple
340 pattern is used on monochrome displays instead of shades of gray
341 for a face background color. See `set-face-stipple' for possible
342 values for this variable. */
344 Lisp_Object Vface_default_stipple
;
346 /* Alist of alternative font families. Each element is of the form
347 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
348 try FAMILY1, then FAMILY2, ... */
350 Lisp_Object Vface_alternative_font_family_alist
;
352 /* Alist of alternative font registries. Each element is of the form
353 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
354 loaded, try REGISTRY1, then REGISTRY2, ... */
356 Lisp_Object Vface_alternative_font_registry_alist
;
358 /* Allowed scalable fonts. A value of nil means don't allow any
359 scalable fonts. A value of t means allow the use of any scalable
360 font. Otherwise, value must be a list of regular expressions. A
361 font may be scaled if its name matches a regular expression in the
364 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
366 /* List of regular expressions that matches names of fonts to ignore. */
368 Lisp_Object Vface_ignored_fonts
;
370 /* Alist of font name patterns vs the rescaling factor. */
372 Lisp_Object Vface_font_rescale_alist
;
374 /* Maximum number of fonts to consider in font_list. If not an
375 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
377 Lisp_Object Vfont_list_limit
;
378 #define DEFAULT_FONT_LIST_LIMIT 100
380 /* The symbols `foreground-color' and `background-color' which can be
381 used as part of a `face' property. This is for compatibility with
384 Lisp_Object Qforeground_color
, Qbackground_color
;
386 /* The symbols `face' and `mouse-face' used as text properties. */
389 extern Lisp_Object Qmouse_face
;
391 /* Error symbol for wrong_type_argument in load_pixmap. */
393 Lisp_Object Qbitmap_spec_p
;
395 /* Alist of global face definitions. Each element is of the form
396 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
397 is a Lisp vector of face attributes. These faces are used
398 to initialize faces for new frames. */
400 Lisp_Object Vface_new_frame_defaults
;
402 /* The next ID to assign to Lisp faces. */
404 static int next_lface_id
;
406 /* A vector mapping Lisp face Id's to face names. */
408 static Lisp_Object
*lface_id_to_name
;
409 static int lface_id_to_name_size
;
411 /* TTY color-related functions (defined in tty-colors.el). */
413 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
415 /* The name of the function used to compute colors on TTYs. */
417 Lisp_Object Qtty_color_alist
;
419 /* An alist of defined terminal colors and their RGB values. */
421 Lisp_Object Vtty_defined_color_alist
;
423 /* Counter for calls to clear_face_cache. If this counter reaches
424 CLEAR_FONT_TABLE_COUNT, and a frame has more than
425 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
427 static int clear_font_table_count
;
428 #define CLEAR_FONT_TABLE_COUNT 100
429 #define CLEAR_FONT_TABLE_NFONTS 10
431 /* Non-zero means face attributes have been changed since the last
432 redisplay. Used in redisplay_internal. */
434 int face_change_count
;
436 /* Non-zero means don't display bold text if a face's foreground
437 and background colors are the inverse of the default colors of the
438 display. This is a kluge to suppress `bold black' foreground text
439 which is hard to read on an LCD monitor. */
441 int tty_suppress_bold_inverse_default_colors_p
;
443 /* A list of the form `((x . y))' used to avoid consing in
444 Finternal_set_lisp_face_attribute. */
446 static Lisp_Object Vparam_value_alist
;
448 /* The total number of colors currently allocated. */
451 static int ncolors_allocated
;
452 static int npixmaps_allocated
;
456 /* Non-zero means the definition of the `menu' face for new frames has
459 int menu_face_changed_default
;
462 /* Function prototypes. */
467 static void map_tty_color
P_ ((struct frame
*, struct face
*,
468 enum lface_attribute_index
, int *));
469 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
470 static int may_use_scalable_font_p
P_ ((const char *));
471 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
472 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
474 static int x_face_list_fonts
P_ ((struct frame
*, char *,
475 struct font_name
**, int, int));
476 static int font_scalable_p
P_ ((struct font_name
*));
477 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
478 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
479 static unsigned char *xstrlwr
P_ ((unsigned char *));
480 static void signal_error
P_ ((char *, Lisp_Object
));
481 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
482 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
483 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
484 static void free_face_colors
P_ ((struct frame
*, struct face
*));
485 static int face_color_gray_p
P_ ((struct frame
*, char *));
486 static char *build_font_name
P_ ((struct font_name
*));
487 static void free_font_names
P_ ((struct font_name
*, int));
488 static int sorted_font_list
P_ ((struct frame
*, char *,
489 int (*cmpfn
) P_ ((const void *, const void *)),
490 struct font_name
**));
491 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
492 Lisp_Object
, struct font_name
**));
493 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
494 Lisp_Object
, struct font_name
**));
495 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
496 Lisp_Object
, Lisp_Object
, struct font_name
**,
498 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
499 Lisp_Object
, struct font_name
**));
500 static int cmp_font_names
P_ ((const void *, const void *));
501 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
502 struct face
*, int));
503 static struct face
*realize_x_face
P_ ((struct face_cache
*,
504 Lisp_Object
*, int, struct face
*));
505 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
506 Lisp_Object
*, int));
507 static int realize_basic_faces
P_ ((struct frame
*));
508 static int realize_default_face
P_ ((struct frame
*));
509 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
510 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
511 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
512 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
513 static unsigned lface_hash
P_ ((Lisp_Object
*));
514 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
515 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
516 static void free_realized_face
P_ ((struct frame
*, struct face
*));
517 static void clear_face_gcs
P_ ((struct face_cache
*));
518 static void free_face_cache
P_ ((struct face_cache
*));
519 static int face_numeric_weight
P_ ((Lisp_Object
));
520 static int face_numeric_slant
P_ ((Lisp_Object
));
521 static int face_numeric_swidth
P_ ((Lisp_Object
));
522 static int face_fontset
P_ ((Lisp_Object
*));
523 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
524 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*, Lisp_Object
));
525 static void merge_face_inheritance
P_ ((struct frame
*f
, Lisp_Object
,
526 Lisp_Object
*, Lisp_Object
));
527 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
529 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
530 Lisp_Object
, int, int));
531 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
532 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
533 static void free_realized_faces
P_ ((struct face_cache
*));
534 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
535 struct font_name
*, int, int, int *));
536 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
537 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
538 static int xlfd_numeric_slant
P_ ((struct font_name
*));
539 static int xlfd_numeric_weight
P_ ((struct font_name
*));
540 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
541 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
542 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
543 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
544 static int xlfd_fixed_p
P_ ((struct font_name
*));
545 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
547 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
548 struct font_name
*, int,
550 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
551 struct font_name
*, int));
553 #ifdef HAVE_WINDOW_SYSTEM
555 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
556 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
557 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
558 int (*cmpfn
) P_ ((const void *, const void *))));
559 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
560 static void x_free_gc
P_ ((struct frame
*, GC
));
561 static void clear_font_table
P_ ((struct x_display_info
*));
564 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
565 #endif /* WINDOWSNT */
568 static void x_update_menu_appearance
P_ ((struct frame
*));
570 extern void free_frame_menubar
P_ ((struct frame
*));
571 #endif /* USE_X_TOOLKIT */
573 #endif /* HAVE_WINDOW_SYSTEM */
576 /***********************************************************************
578 ***********************************************************************/
580 #ifdef HAVE_X_WINDOWS
582 #ifdef DEBUG_X_COLORS
584 /* The following is a poor mans infrastructure for debugging X color
585 allocation problems on displays with PseudoColor-8. Some X servers
586 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
587 color reference counts completely so that they don't signal an
588 error when a color is freed whose reference count is already 0.
589 Other X servers do. To help me debug this, the following code
590 implements a simple reference counting schema of its own, for a
591 single display/screen. --gerd. */
593 /* Reference counts for pixel colors. */
595 int color_count
[256];
597 /* Register color PIXEL as allocated. */
600 register_color (pixel
)
603 xassert (pixel
< 256);
604 ++color_count
[pixel
];
608 /* Register color PIXEL as deallocated. */
611 unregister_color (pixel
)
614 xassert (pixel
< 256);
615 if (color_count
[pixel
] > 0)
616 --color_count
[pixel
];
622 /* Register N colors from PIXELS as deallocated. */
625 unregister_colors (pixels
, n
)
626 unsigned long *pixels
;
630 for (i
= 0; i
< n
; ++i
)
631 unregister_color (pixels
[i
]);
635 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
636 doc
: /* Dump currently allocated colors to stderr. */)
641 fputc ('\n', stderr
);
643 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
646 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
649 fputc ('\n', stderr
);
651 fputc ('\t', stderr
);
655 fputc ('\n', stderr
);
659 #endif /* DEBUG_X_COLORS */
662 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
663 color values. Interrupt input must be blocked when this function
667 x_free_colors (f
, pixels
, npixels
)
669 unsigned long *pixels
;
672 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
674 /* If display has an immutable color map, freeing colors is not
675 necessary and some servers don't allow it. So don't do it. */
676 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
678 #ifdef DEBUG_X_COLORS
679 unregister_colors (pixels
, npixels
);
681 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
687 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
688 color values. Interrupt input must be blocked when this function
692 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
696 unsigned long *pixels
;
699 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
700 int class = dpyinfo
->visual
->class;
702 /* If display has an immutable color map, freeing colors is not
703 necessary and some servers don't allow it. So don't do it. */
704 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
706 #ifdef DEBUG_X_COLORS
707 unregister_colors (pixels
, npixels
);
709 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
714 /* Create and return a GC for use on frame F. GC values and mask
715 are given by XGCV and MASK. */
718 x_create_gc (f
, mask
, xgcv
)
725 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
732 /* Free GC which was used on frame F. */
740 xassert (--ngcs
>= 0);
741 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
745 #endif /* HAVE_X_WINDOWS */
748 /* W32 emulation of GCs */
751 x_create_gc (f
, mask
, xgcv
)
758 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
765 /* Free GC which was used on frame F. */
773 xassert (--ngcs
>= 0);
778 #endif /* WINDOWSNT */
781 /* Mac OS emulation of GCs */
783 extern XGCValues
*XCreateGC (void *, Window
, unsigned long, XGCValues
*);
786 x_create_gc (f
, mask
, xgcv
)
792 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
801 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
806 /* Like stricmp. Used to compare parts of font names which are in
811 const unsigned char *s1
, *s2
;
815 unsigned char c1
= tolower (*s1
);
816 unsigned char c2
= tolower (*s2
);
818 return c1
< c2
? -1 : 1;
823 return *s2
== 0 ? 0 : -1;
828 /* Like strlwr, which might not always be available. */
830 static unsigned char *
834 unsigned char *p
= s
;
843 /* Signal `error' with message S, and additional argument ARG. */
846 signal_error (s
, arg
)
850 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
854 /* If FRAME is nil, return a pointer to the selected frame.
855 Otherwise, check that FRAME is a live frame, and return a pointer
856 to it. NPARAM is the parameter number of FRAME, for
857 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
858 Lisp function definitions. */
860 static INLINE
struct frame
*
861 frame_or_selected_frame (frame
, nparam
)
866 frame
= selected_frame
;
868 CHECK_LIVE_FRAME (frame
);
869 return XFRAME (frame
);
873 /***********************************************************************
875 ***********************************************************************/
877 /* Initialize face cache and basic faces for frame F. */
883 /* Make a face cache, if F doesn't have one. */
884 if (FRAME_FACE_CACHE (f
) == NULL
)
885 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
887 #ifdef HAVE_WINDOW_SYSTEM
888 /* Make the image cache. */
889 if (FRAME_WINDOW_P (f
))
891 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
892 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
893 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
895 #endif /* HAVE_WINDOW_SYSTEM */
897 /* Realize basic faces. Must have enough information in frame
898 parameters to realize basic faces at this point. */
899 #ifdef HAVE_X_WINDOWS
900 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
903 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
906 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
908 if (!realize_basic_faces (f
))
913 /* Free face cache of frame F. Called from Fdelete_frame. */
919 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
923 free_face_cache (face_cache
);
924 FRAME_FACE_CACHE (f
) = NULL
;
927 #ifdef HAVE_WINDOW_SYSTEM
928 if (FRAME_WINDOW_P (f
))
930 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
933 --image_cache
->refcount
;
934 if (image_cache
->refcount
== 0)
935 free_image_cache (f
);
938 #endif /* HAVE_WINDOW_SYSTEM */
942 /* Clear face caches, and recompute basic faces for frame F. Call
943 this after changing frame parameters on which those faces depend,
944 or when realized faces have been freed due to changing attributes
948 recompute_basic_faces (f
)
951 if (FRAME_FACE_CACHE (f
))
953 clear_face_cache (0);
954 if (!realize_basic_faces (f
))
960 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
961 try to free unused fonts, too. */
964 clear_face_cache (clear_fonts_p
)
967 #ifdef HAVE_WINDOW_SYSTEM
968 Lisp_Object tail
, frame
;
972 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
974 struct x_display_info
*dpyinfo
;
976 /* Fonts are common for frames on one display, i.e. on
978 for (dpyinfo
= x_display_list
; dpyinfo
; dpyinfo
= dpyinfo
->next
)
979 if (dpyinfo
->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
980 clear_font_table (dpyinfo
);
982 /* From time to time see if we can unload some fonts. This also
983 frees all realized faces on all frames. Fonts needed by
984 faces will be loaded again when faces are realized again. */
985 clear_font_table_count
= 0;
987 FOR_EACH_FRAME (tail
, frame
)
989 struct frame
*f
= XFRAME (frame
);
990 if (FRAME_WINDOW_P (f
)
991 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
992 free_all_realized_faces (frame
);
997 /* Clear GCs of realized faces. */
998 FOR_EACH_FRAME (tail
, frame
)
1001 if (FRAME_WINDOW_P (f
))
1003 clear_face_gcs (FRAME_FACE_CACHE (f
));
1004 clear_image_cache (f
, 0);
1008 #endif /* HAVE_WINDOW_SYSTEM */
1012 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1013 doc
: /* Clear face caches on all frames.
1014 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
1016 Lisp_Object thoroughly
;
1018 clear_face_cache (!NILP (thoroughly
));
1019 ++face_change_count
;
1020 ++windows_or_buffers_changed
;
1026 #ifdef HAVE_WINDOW_SYSTEM
1029 /* Remove fonts from the font table of DPYINFO except for the default
1030 ASCII fonts of frames on that display. Called from clear_face_cache
1031 from time to time. */
1034 clear_font_table (dpyinfo
)
1035 struct x_display_info
*dpyinfo
;
1039 /* Free those fonts that are not used by frames on DPYINFO. */
1040 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1042 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1043 Lisp_Object tail
, frame
;
1045 /* Check if slot is already free. */
1046 if (font_info
->name
== NULL
)
1049 /* Don't free a default font of some frame. */
1050 FOR_EACH_FRAME (tail
, frame
)
1052 struct frame
*f
= XFRAME (frame
);
1053 if (FRAME_WINDOW_P (f
)
1054 && font_info
->font
== FRAME_FONT (f
))
1062 if (font_info
->full_name
!= font_info
->name
)
1063 xfree (font_info
->full_name
);
1064 xfree (font_info
->name
);
1066 /* Free the font. */
1068 #ifdef HAVE_X_WINDOWS
1069 XFreeFont (dpyinfo
->display
, font_info
->font
);
1072 w32_unload_font (dpyinfo
, font_info
->font
);
1076 /* Mark font table slot free. */
1077 font_info
->font
= NULL
;
1078 font_info
->name
= font_info
->full_name
= NULL
;
1082 #endif /* HAVE_WINDOW_SYSTEM */
1086 /***********************************************************************
1088 ***********************************************************************/
1090 #ifdef HAVE_WINDOW_SYSTEM
1092 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1093 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1094 A bitmap specification is either a string, a file name, or a list
1095 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1096 HEIGHT is its height, and DATA is a string containing the bits of
1097 the pixmap. Bits are stored row by row, each row occupies
1098 \(WIDTH + 7)/8 bytes. */)
1104 if (STRINGP (object
))
1105 /* If OBJECT is a string, it's a file name. */
1107 else if (CONSP (object
))
1109 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1110 HEIGHT must be integers > 0, and DATA must be string large
1111 enough to hold a bitmap of the specified size. */
1112 Lisp_Object width
, height
, data
;
1114 height
= width
= data
= Qnil
;
1118 width
= XCAR (object
);
1119 object
= XCDR (object
);
1122 height
= XCAR (object
);
1123 object
= XCDR (object
);
1125 data
= XCAR (object
);
1129 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1131 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1133 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1138 return pixmap_p
? Qt
: Qnil
;
1142 /* Load a bitmap according to NAME (which is either a file name or a
1143 pixmap spec) for use on frame F. Value is the bitmap_id (see
1144 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1145 bitmap cannot be loaded, display a message saying so, and return
1146 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1147 if these pointers are not null. */
1150 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1153 unsigned int *w_ptr
, *h_ptr
;
1161 tem
= Fbitmap_spec_p (name
);
1163 wrong_type_argument (Qbitmap_spec_p
, name
);
1168 /* Decode a bitmap spec into a bitmap. */
1173 w
= XINT (Fcar (name
));
1174 h
= XINT (Fcar (Fcdr (name
)));
1175 bits
= Fcar (Fcdr (Fcdr (name
)));
1177 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1182 /* It must be a string -- a file name. */
1183 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1189 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1200 ++npixmaps_allocated
;
1203 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1206 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1212 #endif /* HAVE_WINDOW_SYSTEM */
1216 /***********************************************************************
1218 ***********************************************************************/
1220 #ifdef HAVE_WINDOW_SYSTEM
1222 /* Load font of face FACE which is used on frame F to display
1223 character C. The name of the font to load is determined by lface
1224 and fontset of FACE. */
1227 load_face_font (f
, face
, c
)
1232 struct font_info
*font_info
= NULL
;
1234 int needs_overstrike
;
1236 face
->font_info_id
= -1;
1239 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
,
1245 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1250 face
->font_info_id
= font_info
->font_idx
;
1251 face
->font
= font_info
->font
;
1252 face
->font_name
= font_info
->full_name
;
1253 face
->overstrike
= needs_overstrike
;
1256 x_free_gc (f
, face
->gc
);
1261 add_to_log ("Unable to load font %s",
1262 build_string (font_name
), Qnil
);
1266 #endif /* HAVE_WINDOW_SYSTEM */
1270 /***********************************************************************
1272 ***********************************************************************/
1274 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1275 RGB_LIST should contain (at least) 3 lisp integers.
1276 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1279 parse_rgb_list (rgb_list
, color
)
1280 Lisp_Object rgb_list
;
1283 #define PARSE_RGB_LIST_FIELD(field) \
1284 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1286 color->field = XINT (XCAR (rgb_list)); \
1287 rgb_list = XCDR (rgb_list); \
1292 PARSE_RGB_LIST_FIELD (red
);
1293 PARSE_RGB_LIST_FIELD (green
);
1294 PARSE_RGB_LIST_FIELD (blue
);
1300 /* Lookup on frame F the color described by the lisp string COLOR.
1301 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1302 non-zero, then the `standard' definition of the same color is
1306 tty_lookup_color (f
, color
, tty_color
, std_color
)
1309 XColor
*tty_color
, *std_color
;
1311 Lisp_Object frame
, color_desc
;
1313 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1316 XSETFRAME (frame
, f
);
1318 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1319 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1323 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1326 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1328 rgb
= XCDR (XCDR (color_desc
));
1329 if (! parse_rgb_list (rgb
, tty_color
))
1332 /* Should we fill in STD_COLOR too? */
1335 /* Default STD_COLOR to the same as TTY_COLOR. */
1336 *std_color
= *tty_color
;
1338 /* Do a quick check to see if the returned descriptor is
1339 actually _exactly_ equal to COLOR, otherwise we have to
1340 lookup STD_COLOR separately. If it's impossible to lookup
1341 a standard color, we just give up and use TTY_COLOR. */
1342 if ((!STRINGP (XCAR (color_desc
))
1343 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1344 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1346 /* Look up STD_COLOR separately. */
1347 rgb
= call1 (Qtty_color_standard_values
, color
);
1348 if (! parse_rgb_list (rgb
, std_color
))
1355 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1356 /* We were called early during startup, and the colors are not
1357 yet set up in tty-defined-color-alist. Don't return a failure
1358 indication, since this produces the annoying "Unable to
1359 load color" messages in the *Messages* buffer. */
1362 /* tty-color-desc seems to have returned a bad value. */
1366 /* A version of defined_color for non-X frames. */
1369 tty_defined_color (f
, color_name
, color_def
, alloc
)
1378 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1380 color_def
->blue
= 0;
1381 color_def
->green
= 0;
1384 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, 0);
1386 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1388 if (strcmp (color_name
, "unspecified-fg") == 0)
1389 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1390 else if (strcmp (color_name
, "unspecified-bg") == 0)
1391 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1394 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1401 /* Decide if color named COLOR_NAME is valid for the display
1402 associated with the frame F; if so, return the rgb values in
1403 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1405 This does the right thing for any type of frame. */
1408 defined_color (f
, color_name
, color_def
, alloc
)
1414 if (!FRAME_WINDOW_P (f
))
1415 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1416 #ifdef HAVE_X_WINDOWS
1417 else if (FRAME_X_P (f
))
1418 return x_defined_color (f
, color_name
, color_def
, alloc
);
1421 else if (FRAME_W32_P (f
))
1422 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1425 else if (FRAME_MAC_P (f
))
1426 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1433 /* Given the index IDX of a tty color on frame F, return its name, a
1437 tty_color_name (f
, idx
)
1441 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1444 Lisp_Object coldesc
;
1446 XSETFRAME (frame
, f
);
1447 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1449 if (!NILP (coldesc
))
1450 return XCAR (coldesc
);
1453 /* We can have an MSDOG frame under -nw for a short window of
1454 opportunity before internal_terminal_init is called. DTRT. */
1455 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1456 return msdos_stdcolor_name (idx
);
1459 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1460 return build_string (unspecified_fg
);
1461 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1462 return build_string (unspecified_bg
);
1465 return vga_stdcolor_name (idx
);
1468 return Qunspecified
;
1472 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1473 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1476 face_color_gray_p (f
, color_name
)
1483 if (defined_color (f
, color_name
, &color
, 0))
1484 gray_p
= ((abs (color
.red
- color
.green
)
1485 < max (color
.red
, color
.green
) / 20)
1486 && (abs (color
.green
- color
.blue
)
1487 < max (color
.green
, color
.blue
) / 20)
1488 && (abs (color
.blue
- color
.red
)
1489 < max (color
.blue
, color
.red
) / 20));
1497 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1498 BACKGROUND_P non-zero means the color will be used as background
1502 face_color_supported_p (f
, color_name
, background_p
)
1510 XSETFRAME (frame
, f
);
1512 #ifdef HAVE_X_WINDOWS
1514 ? (!NILP (Fxw_display_color_p (frame
))
1515 || xstricmp (color_name
, "black") == 0
1516 || xstricmp (color_name
, "white") == 0
1518 && face_color_gray_p (f
, color_name
))
1519 || (!NILP (Fx_display_grayscale_p (frame
))
1520 && face_color_gray_p (f
, color_name
)))
1523 tty_defined_color (f
, color_name
, ¬_used
, 0);
1527 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1528 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1529 FRAME specifies the frame and thus the display for interpreting COLOR.
1530 If FRAME is nil or omitted, use the selected frame. */)
1532 Lisp_Object color
, frame
;
1536 CHECK_STRING (color
);
1538 frame
= selected_frame
;
1540 CHECK_FRAME (frame
);
1542 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1546 DEFUN ("color-supported-p", Fcolor_supported_p
,
1547 Scolor_supported_p
, 1, 3, 0,
1548 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1549 BACKGROUND-P non-nil means COLOR is used as a background.
1550 If FRAME is nil or omitted, use the selected frame.
1551 COLOR must be a valid color name. */)
1552 (color
, frame
, background_p
)
1553 Lisp_Object frame
, color
, background_p
;
1557 CHECK_STRING (color
);
1559 frame
= selected_frame
;
1561 CHECK_FRAME (frame
);
1563 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1569 /* Load color with name NAME for use by face FACE on frame F.
1570 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1571 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1572 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1573 pixel color. If color cannot be loaded, display a message, and
1574 return the foreground, background or underline color of F, but
1575 record that fact in flags of the face so that we don't try to free
1579 load_color (f
, face
, name
, target_index
)
1583 enum lface_attribute_index target_index
;
1587 xassert (STRINGP (name
));
1588 xassert (target_index
== LFACE_FOREGROUND_INDEX
1589 || target_index
== LFACE_BACKGROUND_INDEX
1590 || target_index
== LFACE_UNDERLINE_INDEX
1591 || target_index
== LFACE_OVERLINE_INDEX
1592 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1593 || target_index
== LFACE_BOX_INDEX
);
1595 /* if the color map is full, defined_color will return a best match
1596 to the values in an existing cell. */
1597 if (!defined_color (f
, SDATA (name
), &color
, 1))
1599 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1601 switch (target_index
)
1603 case LFACE_FOREGROUND_INDEX
:
1604 face
->foreground_defaulted_p
= 1;
1605 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1608 case LFACE_BACKGROUND_INDEX
:
1609 face
->background_defaulted_p
= 1;
1610 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1613 case LFACE_UNDERLINE_INDEX
:
1614 face
->underline_defaulted_p
= 1;
1615 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1618 case LFACE_OVERLINE_INDEX
:
1619 face
->overline_color_defaulted_p
= 1;
1620 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1623 case LFACE_STRIKE_THROUGH_INDEX
:
1624 face
->strike_through_color_defaulted_p
= 1;
1625 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1628 case LFACE_BOX_INDEX
:
1629 face
->box_color_defaulted_p
= 1;
1630 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1639 ++ncolors_allocated
;
1646 #ifdef HAVE_WINDOW_SYSTEM
1648 /* Load colors for face FACE which is used on frame F. Colors are
1649 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1650 of ATTRS. If the background color specified is not supported on F,
1651 try to emulate gray colors with a stipple from Vface_default_stipple. */
1654 load_face_colors (f
, face
, attrs
)
1661 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1662 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1664 /* Swap colors if face is inverse-video. */
1665 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1673 /* Check for support for foreground, not for background because
1674 face_color_supported_p is smart enough to know that grays are
1675 "supported" as background because we are supposed to use stipple
1677 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1678 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1680 x_destroy_bitmap (f
, face
->stipple
);
1681 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1682 &face
->pixmap_w
, &face
->pixmap_h
);
1685 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1686 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1690 /* Free color PIXEL on frame F. */
1693 unload_color (f
, pixel
)
1695 unsigned long pixel
;
1697 #ifdef HAVE_X_WINDOWS
1701 x_free_colors (f
, &pixel
, 1);
1708 /* Free colors allocated for FACE. */
1711 free_face_colors (f
, face
)
1715 #ifdef HAVE_X_WINDOWS
1716 if (face
->colors_copied_bitwise_p
)
1721 if (!face
->foreground_defaulted_p
)
1723 x_free_colors (f
, &face
->foreground
, 1);
1724 IF_DEBUG (--ncolors_allocated
);
1727 if (!face
->background_defaulted_p
)
1729 x_free_colors (f
, &face
->background
, 1);
1730 IF_DEBUG (--ncolors_allocated
);
1733 if (face
->underline_p
1734 && !face
->underline_defaulted_p
)
1736 x_free_colors (f
, &face
->underline_color
, 1);
1737 IF_DEBUG (--ncolors_allocated
);
1740 if (face
->overline_p
1741 && !face
->overline_color_defaulted_p
)
1743 x_free_colors (f
, &face
->overline_color
, 1);
1744 IF_DEBUG (--ncolors_allocated
);
1747 if (face
->strike_through_p
1748 && !face
->strike_through_color_defaulted_p
)
1750 x_free_colors (f
, &face
->strike_through_color
, 1);
1751 IF_DEBUG (--ncolors_allocated
);
1754 if (face
->box
!= FACE_NO_BOX
1755 && !face
->box_color_defaulted_p
)
1757 x_free_colors (f
, &face
->box_color
, 1);
1758 IF_DEBUG (--ncolors_allocated
);
1762 #endif /* HAVE_X_WINDOWS */
1765 #endif /* HAVE_WINDOW_SYSTEM */
1769 /***********************************************************************
1771 ***********************************************************************/
1773 /* An enumerator for each field of an XLFD font name. */
1794 /* An enumerator for each possible slant value of a font. Taken from
1795 the XLFD specification. */
1803 XLFD_SLANT_REVERSE_ITALIC
,
1804 XLFD_SLANT_REVERSE_OBLIQUE
,
1808 /* Relative font weight according to XLFD documentation. */
1812 XLFD_WEIGHT_UNKNOWN
,
1813 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1814 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1815 XLFD_WEIGHT_LIGHT
, /* 30 */
1816 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1817 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1818 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1819 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1820 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1821 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1824 /* Relative proportionate width. */
1828 XLFD_SWIDTH_UNKNOWN
,
1829 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1830 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1831 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1832 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1833 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1834 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1835 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1836 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1837 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1840 /* Structure used for tables mapping XLFD weight, slant, and width
1841 names to numeric and symbolic values. */
1847 Lisp_Object
*symbol
;
1850 /* Table of XLFD slant names and their numeric and symbolic
1851 representations. This table must be sorted by slant names in
1854 static struct table_entry slant_table
[] =
1856 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1857 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1858 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1859 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1860 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1861 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1864 /* Table of XLFD weight names. This table must be sorted by weight
1865 names in ascending order. */
1867 static struct table_entry weight_table
[] =
1869 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1870 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1871 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1872 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1873 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1874 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1875 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1876 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1877 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1878 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1879 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1880 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1881 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1882 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1883 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1884 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1887 /* Table of XLFD width names. This table must be sorted by width
1888 names in ascending order. */
1890 static struct table_entry swidth_table
[] =
1892 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1893 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1894 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1895 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1896 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1897 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1898 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1899 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1900 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1901 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1902 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1903 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1904 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1905 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1906 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1909 /* Structure used to hold the result of splitting font names in XLFD
1910 format into their fields. */
1914 /* The original name which is modified destructively by
1915 split_font_name. The pointer is kept here to be able to free it
1916 if it was allocated from the heap. */
1919 /* Font name fields. Each vector element points into `name' above.
1920 Fields are NUL-terminated. */
1921 char *fields
[XLFD_LAST
];
1923 /* Numeric values for those fields that interest us. See
1924 split_font_name for which these are. */
1925 int numeric
[XLFD_LAST
];
1927 /* If the original name matches one of Vface_font_rescale_alist,
1928 the value is the corresponding rescale ratio. Otherwise, the
1930 double rescale_ratio
;
1932 /* Lower value mean higher priority. */
1933 int registry_priority
;
1936 /* The frame in effect when sorting font names. Set temporarily in
1937 sort_fonts so that it is available in font comparison functions. */
1939 static struct frame
*font_frame
;
1941 /* Order by which font selection chooses fonts. The default values
1942 mean `first, find a best match for the font width, then for the
1943 font height, then for weight, then for slant.' This variable can be
1944 set via set-face-font-sort-order. */
1947 static int font_sort_order
[4] = {
1948 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1951 static int font_sort_order
[4];
1954 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1955 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1956 is a pointer to the matching table entry or null if no table entry
1959 static struct table_entry
*
1960 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1961 struct table_entry
*table
;
1963 struct font_name
*font
;
1966 /* Function split_font_name converts fields to lower-case, so there
1967 is no need to use xstrlwr or xstricmp here. */
1968 char *s
= font
->fields
[field_index
];
1969 int low
, mid
, high
, cmp
;
1976 mid
= (low
+ high
) / 2;
1977 cmp
= strcmp (table
[mid
].name
, s
);
1991 /* Return a numeric representation for font name field
1992 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1993 has DIM entries. Value is the numeric value found or DFLT if no
1994 table entry matches. This function is used to translate weight,
1995 slant, and swidth names of XLFD font names to numeric values. */
1998 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1999 struct table_entry
*table
;
2001 struct font_name
*font
;
2005 struct table_entry
*p
;
2006 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2007 return p
? p
->numeric
: dflt
;
2011 /* Return a symbolic representation for font name field
2012 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2013 has DIM entries. Value is the symbolic value found or DFLT if no
2014 table entry matches. This function is used to translate weight,
2015 slant, and swidth names of XLFD font names to symbols. */
2017 static INLINE Lisp_Object
2018 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2019 struct table_entry
*table
;
2021 struct font_name
*font
;
2025 struct table_entry
*p
;
2026 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2027 return p
? *p
->symbol
: dflt
;
2031 /* Return a numeric value for the slant of the font given by FONT. */
2034 xlfd_numeric_slant (font
)
2035 struct font_name
*font
;
2037 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2038 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2042 /* Return a symbol representing the weight of the font given by FONT. */
2044 static INLINE Lisp_Object
2045 xlfd_symbolic_slant (font
)
2046 struct font_name
*font
;
2048 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2049 font
, XLFD_SLANT
, Qnormal
);
2053 /* Return a numeric value for the weight of the font given by FONT. */
2056 xlfd_numeric_weight (font
)
2057 struct font_name
*font
;
2059 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2060 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2064 /* Return a symbol representing the slant of the font given by FONT. */
2066 static INLINE Lisp_Object
2067 xlfd_symbolic_weight (font
)
2068 struct font_name
*font
;
2070 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2071 font
, XLFD_WEIGHT
, Qnormal
);
2075 /* Return a numeric value for the swidth of the font whose XLFD font
2076 name fields are found in FONT. */
2079 xlfd_numeric_swidth (font
)
2080 struct font_name
*font
;
2082 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2083 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2087 /* Return a symbolic value for the swidth of FONT. */
2089 static INLINE Lisp_Object
2090 xlfd_symbolic_swidth (font
)
2091 struct font_name
*font
;
2093 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2094 font
, XLFD_SWIDTH
, Qnormal
);
2098 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2099 entries. Value is a pointer to the matching table entry or null if
2100 no element of TABLE contains SYMBOL. */
2102 static struct table_entry
*
2103 face_value (table
, dim
, symbol
)
2104 struct table_entry
*table
;
2110 xassert (SYMBOLP (symbol
));
2112 for (i
= 0; i
< dim
; ++i
)
2113 if (EQ (*table
[i
].symbol
, symbol
))
2116 return i
< dim
? table
+ i
: NULL
;
2120 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2121 entries. Value is -1 if SYMBOL is not found in TABLE. */
2124 face_numeric_value (table
, dim
, symbol
)
2125 struct table_entry
*table
;
2129 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2130 return p
? p
->numeric
: -1;
2134 /* Return a numeric value representing the weight specified by Lisp
2135 symbol WEIGHT. Value is one of the enumerators of enum
2139 face_numeric_weight (weight
)
2142 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2146 /* Return a numeric value representing the slant specified by Lisp
2147 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2150 face_numeric_slant (slant
)
2153 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2157 /* Return a numeric value representing the swidth specified by Lisp
2158 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2161 face_numeric_swidth (width
)
2164 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2168 #ifdef HAVE_WINDOW_SYSTEM
2170 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2174 struct font_name
*font
;
2176 /* Function split_font_name converts fields to lower-case, so there
2177 is no need to use tolower here. */
2178 return *font
->fields
[XLFD_SPACING
] != 'p';
2182 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2184 The actual height of the font when displayed on F depends on the
2185 resolution of both the font and frame. For example, a 10pt font
2186 designed for a 100dpi display will display larger than 10pt on a
2187 75dpi display. (It's not unusual to use fonts not designed for the
2188 display one is using. For example, some intlfonts are available in
2189 72dpi versions, only.)
2191 Value is the real point size of FONT on frame F, or 0 if it cannot
2195 xlfd_point_size (f
, font
)
2197 struct font_name
*font
;
2199 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2200 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2204 if (*pixel_field
== '[')
2206 /* The pixel size field is `[A B C D]' which specifies
2207 a transformation matrix.
2213 by which all glyphs of the font are transformed. The spec
2214 says that s scalar value N for the pixel size is equivalent
2215 to A = N * resx/resy, B = C = 0, D = N. */
2216 char *start
= pixel_field
+ 1, *end
;
2220 for (i
= 0; i
< 4; ++i
)
2222 matrix
[i
] = strtod (start
, &end
);
2229 pixel
= atoi (pixel_field
);
2234 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2240 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2241 of frame F. This function is used to guess a point size of font
2242 when only the pixel height of the font is available. */
2245 pixel_point_size (f
, pixel
)
2249 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2253 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2254 point size of one dot. */
2255 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2256 int_pt
= real_pt
+ 0.5;
2262 /* Return a rescaling ratio of a font of NAME. */
2265 font_rescale_ratio (name
)
2268 Lisp_Object tail
, elt
;
2270 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2273 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2274 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2275 return XFLOAT_DATA (XCDR (elt
));
2281 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2282 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2283 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2284 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2285 zero if the font name doesn't have the format we expect. The
2286 expected format is a font name that starts with a `-' and has
2287 XLFD_LAST fields separated by `-'. */
2290 split_font_name (f
, font
, numeric_p
)
2292 struct font_name
*font
;
2297 double rescale_ratio
;
2300 /* This must be done before splitting the font name. */
2301 rescale_ratio
= font_rescale_ratio (font
->name
);
2303 if (*font
->name
== '-')
2305 char *p
= xstrlwr (font
->name
) + 1;
2307 while (i
< XLFD_LAST
)
2309 font
->fields
[i
] = p
;
2312 /* Pixel and point size may be of the form `[....]'. For
2313 BNF, see XLFD spec, chapter 4. Negative values are
2314 indicated by tilde characters which we replace with
2315 `-' characters, here. */
2317 && (i
- 1 == XLFD_PIXEL_SIZE
2318 || i
- 1 == XLFD_POINT_SIZE
))
2323 for (++p
; *p
&& *p
!= ']'; ++p
)
2327 /* Check that the matrix contains 4 floating point
2329 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2332 if (strtod (start
, &end
) == 0 && start
== end
)
2339 while (*p
&& *p
!= '-')
2349 success_p
= i
== XLFD_LAST
;
2351 /* If requested, and font name was in the expected format,
2352 compute numeric values for some fields. */
2353 if (numeric_p
&& success_p
)
2355 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2356 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2357 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2358 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2359 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2360 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2361 font
->rescale_ratio
= rescale_ratio
;
2364 /* Initialize it to zero. It will be overridden by font_list while
2365 trying alternate registries. */
2366 font
->registry_priority
= 0;
2372 /* Build an XLFD font name from font name fields in FONT. Value is a
2373 pointer to the font name, which is allocated via xmalloc. */
2376 build_font_name (font
)
2377 struct font_name
*font
;
2381 char *font_name
= (char *) xmalloc (size
);
2382 int total_length
= 0;
2384 for (i
= 0; i
< XLFD_LAST
; ++i
)
2386 /* Add 1 because of the leading `-'. */
2387 int len
= strlen (font
->fields
[i
]) + 1;
2389 /* Reallocate font_name if necessary. Add 1 for the final
2391 if (total_length
+ len
+ 1 >= size
)
2393 int new_size
= max (2 * size
, size
+ len
+ 1);
2394 int sz
= new_size
* sizeof *font_name
;
2395 font_name
= (char *) xrealloc (font_name
, sz
);
2399 font_name
[total_length
] = '-';
2400 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2401 total_length
+= len
;
2404 font_name
[total_length
] = 0;
2409 /* Free an array FONTS of N font_name structures. This frees FONTS
2410 itself and all `name' fields in its elements. */
2413 free_font_names (fonts
, n
)
2414 struct font_name
*fonts
;
2418 xfree (fonts
[--n
].name
);
2423 /* Sort vector FONTS of font_name structures which contains NFONTS
2424 elements using qsort and comparison function CMPFN. F is the frame
2425 on which the fonts will be used. The global variable font_frame
2426 is temporarily set to F to make it available in CMPFN. */
2429 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2431 struct font_name
*fonts
;
2433 int (*cmpfn
) P_ ((const void *, const void *));
2436 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2441 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2442 display in x_display_list. FONTS is a pointer to a vector of
2443 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2444 alternative patterns from Valternate_fontname_alist if no fonts are
2445 found matching PATTERN.
2447 For all fonts found, set FONTS[i].name to the name of the font,
2448 allocated via xmalloc, and split font names into fields. Ignore
2449 fonts that we can't parse. Value is the number of fonts found. */
2452 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2455 struct font_name
**pfonts
;
2456 int nfonts
, try_alternatives_p
;
2460 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2461 better to do it the other way around. */
2463 Lisp_Object lpattern
, tem
;
2464 struct font_name
*fonts
= 0;
2465 int num_fonts
= nfonts
;
2468 lpattern
= build_string (pattern
);
2470 /* Get the list of fonts matching PATTERN. */
2473 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2476 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2479 if (nfonts
< 0 && CONSP (lfonts
))
2480 num_fonts
= XFASTINT (Flength (lfonts
));
2482 /* Make a copy of the font names we got from X, and
2483 split them into fields. */
2485 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2487 Lisp_Object elt
, tail
;
2488 const char *name
= SDATA (XCAR (tem
));
2490 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2491 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2495 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2506 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2510 /* Make a copy of the font name. */
2511 fonts
[n
].name
= xstrdup (name
);
2513 if (split_font_name (f
, fonts
+ n
, 1))
2515 if (font_scalable_p (fonts
+ n
)
2516 && !may_use_scalable_font_p (name
))
2519 xfree (fonts
[n
].name
);
2525 xfree (fonts
[n
].name
);
2528 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2529 if (n
== 0 && try_alternatives_p
)
2531 Lisp_Object list
= Valternate_fontname_alist
;
2539 while (CONSP (list
))
2541 Lisp_Object entry
= XCAR (list
);
2543 && STRINGP (XCAR (entry
))
2544 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2551 Lisp_Object patterns
= XCAR (list
);
2554 while (CONSP (patterns
)
2555 /* If list is screwed up, give up. */
2556 && (name
= XCAR (patterns
),
2558 /* Ignore patterns equal to PATTERN because we tried that
2559 already with no success. */
2560 && (strcmp (SDATA (name
), pattern
) == 0
2561 || (n
= x_face_list_fonts (f
, SDATA (name
),
2564 patterns
= XCDR (patterns
);
2572 /* Check if a font matching pattern_offset_t on frame F is available
2573 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2574 a font name pattern is generated from FAMILY and REGISTRY. */
2577 face_font_available_p (f
, pattern
)
2579 Lisp_Object pattern
;
2583 if (! STRINGP (pattern
))
2585 Lisp_Object family
, registry
;
2586 char *family_str
, *registry_str
, *pattern_str
;
2588 CHECK_CONS (pattern
);
2589 family
= XCAR (pattern
);
2594 CHECK_STRING (family
);
2595 family_str
= (char *) SDATA (family
);
2597 registry
= XCDR (pattern
);
2598 if (NILP (registry
))
2602 CHECK_STRING (registry
);
2603 registry_str
= (char *) SDATA (registry
);
2606 pattern_str
= (char *) alloca (strlen (family_str
)
2607 + strlen (registry_str
)
2609 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2610 strcat (pattern_str
, family_str
);
2611 strcat (pattern_str
, "-*-");
2612 strcat (pattern_str
, registry_str
);
2613 if (!index (registry_str
, '-'))
2615 if (registry_str
[strlen (registry_str
) - 1] == '*')
2616 strcat (pattern_str
, "-*");
2618 strcat (pattern_str
, "*-*");
2620 pattern
= build_string (pattern_str
);
2623 /* Get the list of fonts matching PATTERN. */
2626 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2629 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2631 return XINT (Flength (fonts
));
2635 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2636 using comparison function CMPFN. Value is the number of fonts
2637 found. If value is non-zero, *FONTS is set to a vector of
2638 font_name structures allocated from the heap containing matching
2639 fonts. Each element of *FONTS contains a name member that is also
2640 allocated from the heap. Font names in these structures are split
2641 into fields. Use free_font_names to free such an array. */
2644 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2647 int (*cmpfn
) P_ ((const void *, const void *));
2648 struct font_name
**fonts
;
2652 /* Get the list of fonts matching pattern. 100 should suffice. */
2653 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2654 if (INTEGERP (Vfont_list_limit
))
2655 nfonts
= XINT (Vfont_list_limit
);
2658 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2660 /* Sort the resulting array and return it in *FONTS. If no
2661 fonts were found, make sure to set *FONTS to null. */
2663 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2674 /* Compare two font_name structures *A and *B. Value is analogous to
2675 strcmp. Sort order is given by the global variable
2676 font_sort_order. Font names are sorted so that, everything else
2677 being equal, fonts with a resolution closer to that of the frame on
2678 which they are used are listed first. The global variable
2679 font_frame is the frame on which we operate. */
2682 cmp_font_names (a
, b
)
2685 struct font_name
*x
= (struct font_name
*) a
;
2686 struct font_name
*y
= (struct font_name
*) b
;
2689 /* All strings have been converted to lower-case by split_font_name,
2690 so we can use strcmp here. */
2691 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2696 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2698 int j
= font_sort_order
[i
];
2699 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2704 /* Everything else being equal, we prefer fonts with an
2705 y-resolution closer to that of the frame. */
2706 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2707 int x_resy
= x
->numeric
[XLFD_RESY
];
2708 int y_resy
= y
->numeric
[XLFD_RESY
];
2709 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2717 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2718 is non-nil list fonts matching that pattern. Otherwise, if
2719 REGISTRY is non-nil return only fonts with that registry, otherwise
2720 return fonts of any registry. Set *FONTS to a vector of font_name
2721 structures allocated from the heap containing the fonts found.
2722 Value is the number of fonts found. */
2725 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2727 Lisp_Object pattern
, family
, registry
;
2728 struct font_name
**fonts
;
2730 char *pattern_str
, *family_str
, *registry_str
;
2734 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2735 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2737 pattern_str
= (char *) alloca (strlen (family_str
)
2738 + strlen (registry_str
)
2740 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2741 strcat (pattern_str
, family_str
);
2742 strcat (pattern_str
, "-*-");
2743 strcat (pattern_str
, registry_str
);
2744 if (!index (registry_str
, '-'))
2746 if (registry_str
[strlen (registry_str
) - 1] == '*')
2747 strcat (pattern_str
, "-*");
2749 strcat (pattern_str
, "*-*");
2753 pattern_str
= (char *) SDATA (pattern
);
2755 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2759 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2760 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2761 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2764 static struct font_name
*
2765 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2766 struct font_name
*fonts1
, *fonts2
;
2767 int nfonts1
, nfonts2
;
2769 int new_nfonts
= nfonts1
+ nfonts2
;
2770 struct font_name
*new_fonts
;
2772 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2773 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2774 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2781 /* Get a sorted list of fonts of family FAMILY on frame F.
2783 If PATTERN is non-nil list fonts matching that pattern.
2785 If REGISTRY is non-nil, return fonts with that registry and the
2786 alternative registries from Vface_alternative_font_registry_alist.
2788 If REGISTRY is nil return fonts of any registry.
2790 Set *FONTS to a vector of font_name structures allocated from the
2791 heap containing the fonts found. Value is the number of fonts
2795 font_list (f
, pattern
, family
, registry
, fonts
)
2797 Lisp_Object pattern
, family
, registry
;
2798 struct font_name
**fonts
;
2800 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2802 if (!NILP (registry
)
2803 && CONSP (Vface_alternative_font_registry_alist
))
2807 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2812 for (alter
= XCDR (alter
), reg_prio
= 1;
2814 alter
= XCDR (alter
), reg_prio
++)
2815 if (STRINGP (XCAR (alter
)))
2818 struct font_name
*fonts2
;
2820 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2822 for (i
= 0; i
< nfonts2
; i
++)
2823 fonts2
[i
].registry_priority
= reg_prio
;
2824 *fonts
= (nfonts
> 0
2825 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2836 /* Remove elements from LIST whose cars are `equal'. Called from
2837 x-family-fonts and x-font-family-list to remove duplicate font
2841 remove_duplicates (list
)
2844 Lisp_Object tail
= list
;
2846 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2848 Lisp_Object next
= XCDR (tail
);
2849 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2850 XSETCDR (tail
, XCDR (next
));
2857 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2858 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2859 If FAMILY is omitted or nil, list all families.
2860 Otherwise, FAMILY must be a string, possibly containing wildcards
2862 If FRAME is omitted or nil, use the selected frame.
2863 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2864 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2865 FAMILY is the font family name. POINT-SIZE is the size of the
2866 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2867 width, weight and slant of the font. These symbols are the same as for
2868 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2869 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2870 giving the registry and encoding of the font.
2871 The result list is sorted according to the current setting of
2872 the face font sort order. */)
2874 Lisp_Object family
, frame
;
2876 struct frame
*f
= check_x_frame (frame
);
2877 struct font_name
*fonts
;
2880 struct gcpro gcpro1
;
2883 CHECK_STRING (family
);
2887 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2888 for (i
= nfonts
- 1; i
>= 0; --i
)
2890 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2893 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2894 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2895 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2896 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2897 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2898 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2899 tem
= build_font_name (fonts
+ i
);
2900 ASET (v
, 6, build_string (tem
));
2901 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2902 fonts
[i
].fields
[XLFD_ENCODING
]);
2903 ASET (v
, 7, build_string (tem
));
2906 result
= Fcons (v
, result
);
2909 remove_duplicates (result
);
2910 free_font_names (fonts
, nfonts
);
2916 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2918 doc
: /* Return a list of available font families on FRAME.
2919 If FRAME is omitted or nil, use the selected frame.
2920 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2921 is a font family, and FIXED-P is non-nil if fonts of that family
2922 are fixed-pitch. */)
2926 struct frame
*f
= check_x_frame (frame
);
2928 struct font_name
*fonts
;
2930 struct gcpro gcpro1
;
2931 int count
= SPECPDL_INDEX ();
2933 /* Let's consider all fonts. */
2934 specbind (intern ("font-list-limit"), make_number (-1));
2935 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2939 for (i
= nfonts
- 1; i
>= 0; --i
)
2940 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2941 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2944 remove_duplicates (result
);
2945 free_font_names (fonts
, nfonts
);
2947 return unbind_to (count
, result
);
2951 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2952 doc
: /* Return a list of the names of available fonts matching PATTERN.
2953 If optional arguments FACE and FRAME are specified, return only fonts
2954 the same size as FACE on FRAME.
2955 PATTERN is a string, perhaps with wildcard characters;
2956 the * character matches any substring, and
2957 the ? character matches any single character.
2958 PATTERN is case-insensitive.
2959 FACE is a face name--a symbol.
2961 The return value is a list of strings, suitable as arguments to
2964 Fonts Emacs can't use may or may not be excluded
2965 even if they match PATTERN and FACE.
2966 The optional fourth argument MAXIMUM sets a limit on how many
2967 fonts to match. The first MAXIMUM fonts are reported.
2968 The optional fifth argument WIDTH, if specified, is a number of columns
2969 occupied by a character of a font. In that case, return only fonts
2970 the WIDTH times as wide as FACE on FRAME. */)
2971 (pattern
, face
, frame
, maximum
, width
)
2972 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2979 CHECK_STRING (pattern
);
2985 CHECK_NATNUM (maximum
);
2986 maxnames
= XINT (maximum
);
2990 CHECK_NUMBER (width
);
2992 /* We can't simply call check_x_frame because this function may be
2993 called before any frame is created. */
2994 f
= frame_or_selected_frame (frame
, 2);
2995 if (!FRAME_WINDOW_P (f
))
2997 /* Perhaps we have not yet created any frame. */
3002 /* Determine the width standard for comparison with the fonts we find. */
3008 /* This is of limited utility since it works with character
3009 widths. Keep it for compatibility. --gerd. */
3010 int face_id
= lookup_named_face (f
, face
, 0);
3011 struct face
*face
= (face_id
< 0
3013 : FACE_FROM_ID (f
, face_id
));
3016 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3017 not maximum as on X. Redefine here. */
3019 #define FONT_WIDTH FONT_MAX_WIDTH
3022 if (face
&& face
->font
)
3023 size
= FONT_WIDTH (face
->font
);
3025 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3028 size
*= XINT (width
);
3032 Lisp_Object args
[2];
3034 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3036 /* We don't have to check fontsets. */
3038 args
[1] = list_fontsets (f
, pattern
, size
);
3039 return Fnconc (2, args
);
3043 #endif /* HAVE_WINDOW_SYSTEM */
3047 /***********************************************************************
3049 ***********************************************************************/
3051 /* Access face attributes of face LFACE, a Lisp vector. */
3053 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3054 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3055 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3056 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3057 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3058 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3059 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3060 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3061 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3062 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3063 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3064 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3065 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3066 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3067 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3068 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3070 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3071 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3073 #define LFACEP(LFACE) \
3075 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3076 && EQ (AREF (LFACE, 0), Qface))
3081 /* Check consistency of Lisp face attribute vector ATTRS. */
3084 check_lface_attrs (attrs
)
3087 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3088 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3089 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3090 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3091 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3092 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3093 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3094 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3095 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3096 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3097 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3098 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3099 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3100 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3101 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3102 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3103 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3104 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3105 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3106 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3107 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3108 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3109 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3110 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3111 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3112 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3113 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3114 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3115 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3116 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3117 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3118 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3119 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3120 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3121 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3122 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3123 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3124 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3125 #ifdef HAVE_WINDOW_SYSTEM
3126 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3127 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3128 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3129 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3130 || NILP (attrs
[LFACE_FONT_INDEX
])
3131 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3136 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3144 xassert (LFACEP (lface
));
3145 check_lface_attrs (XVECTOR (lface
)->contents
);
3149 #else /* GLYPH_DEBUG == 0 */
3151 #define check_lface_attrs(attrs) (void) 0
3152 #define check_lface(lface) (void) 0
3154 #endif /* GLYPH_DEBUG == 0 */
3157 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3158 to make it a symvol. If FACE_NAME is an alias for another face,
3159 return that face's name. */
3162 resolve_face_name (face_name
)
3163 Lisp_Object face_name
;
3165 Lisp_Object aliased
;
3167 if (STRINGP (face_name
))
3168 face_name
= intern (SDATA (face_name
));
3170 while (SYMBOLP (face_name
))
3172 aliased
= Fget (face_name
, Qface_alias
);
3176 face_name
= aliased
;
3183 /* Return the face definition of FACE_NAME on frame F. F null means
3184 return the definition for new frames. FACE_NAME may be a string or
3185 a symbol (apparently Emacs 20.2 allowed strings as face names in
3186 face text properties; Ediff uses that). If FACE_NAME is an alias
3187 for another face, return that face's definition. If SIGNAL_P is
3188 non-zero, signal an error if FACE_NAME is not a valid face name.
3189 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3192 static INLINE Lisp_Object
3193 lface_from_face_name (f
, face_name
, signal_p
)
3195 Lisp_Object face_name
;
3200 face_name
= resolve_face_name (face_name
);
3203 lface
= assq_no_quit (face_name
, f
->face_alist
);
3205 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3208 lface
= XCDR (lface
);
3210 signal_error ("Invalid face", face_name
);
3212 check_lface (lface
);
3217 /* Get face attributes of face FACE_NAME from frame-local faces on
3218 frame F. Store the resulting attributes in ATTRS which must point
3219 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3220 is non-zero, signal an error if FACE_NAME does not name a face.
3221 Otherwise, value is zero if FACE_NAME is not a face. */
3224 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3226 Lisp_Object face_name
;
3233 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3236 bcopy (XVECTOR (lface
)->contents
, attrs
,
3237 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3247 /* Non-zero if all attributes in face attribute vector ATTRS are
3248 specified, i.e. are non-nil. */
3251 lface_fully_specified_p (attrs
)
3256 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3257 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3258 && i
!= LFACE_AVGWIDTH_INDEX
)
3259 if (UNSPECIFIEDP (attrs
[i
])
3261 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3262 always unspecified. */
3263 && i
!= LFACE_STIPPLE_INDEX
3268 return i
== LFACE_VECTOR_SIZE
;
3271 #ifdef HAVE_WINDOW_SYSTEM
3273 /* Set font-related attributes of Lisp face LFACE from the fullname of
3274 the font opened by FONTNAME. If FORCE_P is zero, set only
3275 unspecified attributes of LFACE. The exception is `font'
3276 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3278 If FONTNAME is not available on frame F,
3279 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3280 If the fullname is not in a valid XLFD format,
3281 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3282 in LFACE and return 1.
3283 Otherwise, return 1. */
3286 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3289 Lisp_Object fontname
;
3290 int force_p
, may_fail_p
;
3292 struct font_name font
;
3297 char *font_name
= SDATA (fontname
);
3298 struct font_info
*font_info
;
3300 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3301 fontset
= fs_query_fontset (fontname
, 0);
3303 font_name
= SDATA (fontset_ascii (fontset
));
3305 /* Check if FONT_NAME is surely available on the system. Usually
3306 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3307 returns quickly. But, even if FONT_NAME is not yet cached,
3308 caching it now is not futail because we anyway load the font
3311 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3321 font
.name
= STRDUPA (font_info
->full_name
);
3322 have_xlfd_p
= split_font_name (f
, &font
, 1);
3324 /* Set attributes only if unspecified, otherwise face defaults for
3325 new frames would never take effect. If we couldn't get a font
3326 name conforming to XLFD, set normal values. */
3328 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3333 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3334 + strlen (font
.fields
[XLFD_FOUNDRY
])
3336 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3337 font
.fields
[XLFD_FAMILY
]);
3338 val
= build_string (buffer
);
3341 val
= build_string ("*");
3342 LFACE_FAMILY (lface
) = val
;
3345 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3348 pt
= xlfd_point_size (f
, &font
);
3350 pt
= pixel_point_size (f
, font_info
->height
* 10);
3352 LFACE_HEIGHT (lface
) = make_number (pt
);
3355 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3356 LFACE_SWIDTH (lface
)
3357 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3359 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3360 LFACE_AVGWIDTH (lface
)
3362 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3365 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3366 LFACE_WEIGHT (lface
)
3367 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3369 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3371 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3373 LFACE_FONT (lface
) = fontname
;
3378 #endif /* HAVE_WINDOW_SYSTEM */
3381 /* Merges the face height FROM with the face height TO, and returns the
3382 merged height. If FROM is an invalid height, then INVALID is
3383 returned instead. FROM and TO may be either absolute face heights or
3384 `relative' heights; the returned value is always an absolute height
3385 unless both FROM and TO are relative. GCPRO is a lisp value that
3386 will be protected from garbage-collection if this function makes a
3390 merge_face_heights (from
, to
, invalid
, gcpro
)
3391 Lisp_Object from
, to
, invalid
, gcpro
;
3393 Lisp_Object result
= invalid
;
3395 if (INTEGERP (from
))
3396 /* FROM is absolute, just use it as is. */
3398 else if (FLOATP (from
))
3399 /* FROM is a scale, use it to adjust TO. */
3402 /* relative X absolute => absolute */
3403 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3404 else if (FLOATP (to
))
3405 /* relative X relative => relative */
3406 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3408 else if (FUNCTIONP (from
))
3409 /* FROM is a function, which use to adjust TO. */
3411 /* Call function with current height as argument.
3412 From is the new height. */
3413 Lisp_Object args
[2];
3414 struct gcpro gcpro1
;
3420 result
= safe_call (2, args
);
3424 /* Ensure that if TO was absolute, so is the result. */
3425 if (INTEGERP (to
) && !INTEGERP (result
))
3433 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3434 store the resulting attributes in TO, which must be already be
3435 completely specified and contain only absolute attributes. Every
3436 specified attribute of FROM overrides the corresponding attribute of
3437 TO; relative attributes in FROM are merged with the absolute value in
3438 TO and replace it. CYCLE_CHECK is used internally to detect loops in
3439 face inheritance; it should be Qnil when called from other places. */
3442 merge_face_vectors (f
, from
, to
, cycle_check
)
3444 Lisp_Object
*from
, *to
;
3445 Lisp_Object cycle_check
;
3449 /* If FROM inherits from some other faces, merge their attributes into
3450 TO before merging FROM's direct attributes. Note that an :inherit
3451 attribute of `unspecified' is the same as one of nil; we never
3452 merge :inherit attributes, so nil is more correct, but lots of
3453 other code uses `unspecified' as a generic value for face attributes. */
3454 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3455 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3456 merge_face_inheritance (f
, from
[LFACE_INHERIT_INDEX
], to
, cycle_check
);
3458 /* If TO specifies a :font attribute, and FROM specifies some
3459 font-related attribute, we need to clear TO's :font attribute
3460 (because it will be inconsistent with whatever FROM specifies, and
3461 FROM takes precedence). */
3462 if (!NILP (to
[LFACE_FONT_INDEX
])
3463 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3464 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3465 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3466 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3467 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3468 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3469 to
[LFACE_FONT_INDEX
] = Qnil
;
3471 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3472 if (!UNSPECIFIEDP (from
[i
]))
3474 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3475 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
], cycle_check
);
3480 /* TO is always an absolute face, which should inherit from nothing.
3481 We blindly copy the :inherit attribute above and fix it up here. */
3482 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3486 /* Checks the `cycle check' variable CHECK to see if it indicates that
3487 EL is part of a cycle; CHECK must be either Qnil or a value returned
3488 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3489 elements after which a cycle might be suspected; after that many
3490 elements, this macro begins consing in order to keep more precise
3493 Returns nil if a cycle was detected, otherwise a new value for CHECK
3496 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3497 the caller should make sure that's ok. */
3499 #define CYCLE_CHECK(check, el, suspicious) \
3502 : (INTEGERP (check) \
3503 ? (XFASTINT (check) < (suspicious) \
3504 ? make_number (XFASTINT (check) + 1) \
3505 : Fcons (el, Qnil)) \
3506 : (!NILP (Fmemq ((el), (check))) \
3508 : Fcons ((el), (check)))))
3511 /* Merge face attributes from the face on frame F whose name is
3512 INHERITS, into the vector of face attributes TO; INHERITS may also be
3513 a list of face names, in which case they are applied in order.
3514 CYCLE_CHECK is used to detect loops in face inheritance.
3515 Returns true if any of the inherited attributes are `font-related'. */
3518 merge_face_inheritance (f
, inherit
, to
, cycle_check
)
3520 Lisp_Object inherit
;
3522 Lisp_Object cycle_check
;
3524 if (SYMBOLP (inherit
) && !EQ (inherit
, Qunspecified
))
3525 /* Inherit from the named face INHERIT. */
3529 /* Make sure we're not in an inheritance loop. */
3530 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3531 if (NILP (cycle_check
))
3532 /* Cycle detected, ignore any further inheritance. */
3535 lface
= lface_from_face_name (f
, inherit
, 0);
3537 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, cycle_check
);
3539 else if (CONSP (inherit
))
3540 /* Handle a list of inherited faces by calling ourselves recursively
3541 on each element. Note that we only do so for symbol elements, so
3542 it's not possible to infinitely recurse. */
3544 while (CONSP (inherit
))
3546 if (SYMBOLP (XCAR (inherit
)))
3547 merge_face_inheritance (f
, XCAR (inherit
), to
, cycle_check
);
3549 /* Check for a circular inheritance list. */
3550 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3551 if (NILP (cycle_check
))
3552 /* Cycle detected. */
3555 inherit
= XCDR (inherit
);
3561 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3562 is a face property, determine the resulting face attributes on
3563 frame F, and store them in TO. PROP may be a single face
3564 specification or a list of such specifications. Each face
3565 specification can be
3567 1. A symbol or string naming a Lisp face.
3569 2. A property list of the form (KEYWORD VALUE ...) where each
3570 KEYWORD is a face attribute name, and value is an appropriate value
3573 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3574 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3575 for compatibility with 20.2.
3577 Face specifications earlier in lists take precedence over later
3581 merge_face_vector_with_property (f
, to
, prop
)
3588 Lisp_Object first
= XCAR (prop
);
3590 if (EQ (first
, Qforeground_color
)
3591 || EQ (first
, Qbackground_color
))
3593 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3594 . COLOR). COLOR must be a string. */
3595 Lisp_Object color_name
= XCDR (prop
);
3596 Lisp_Object color
= first
;
3598 if (STRINGP (color_name
))
3600 if (EQ (color
, Qforeground_color
))
3601 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3603 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3606 add_to_log ("Invalid face color", color_name
, Qnil
);
3608 else if (SYMBOLP (first
)
3609 && *SDATA (SYMBOL_NAME (first
)) == ':')
3611 /* Assume this is the property list form. */
3612 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3614 Lisp_Object keyword
= XCAR (prop
);
3615 Lisp_Object value
= XCAR (XCDR (prop
));
3617 if (EQ (keyword
, QCfamily
))
3619 if (STRINGP (value
))
3620 to
[LFACE_FAMILY_INDEX
] = value
;
3622 add_to_log ("Invalid face font family", value
, Qnil
);
3624 else if (EQ (keyword
, QCheight
))
3626 Lisp_Object new_height
=
3627 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3630 if (NILP (new_height
))
3631 add_to_log ("Invalid face font height", value
, Qnil
);
3633 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3635 else if (EQ (keyword
, QCweight
))
3638 && face_numeric_weight (value
) >= 0)
3639 to
[LFACE_WEIGHT_INDEX
] = value
;
3641 add_to_log ("Invalid face weight", value
, Qnil
);
3643 else if (EQ (keyword
, QCslant
))
3646 && face_numeric_slant (value
) >= 0)
3647 to
[LFACE_SLANT_INDEX
] = value
;
3649 add_to_log ("Invalid face slant", value
, Qnil
);
3651 else if (EQ (keyword
, QCunderline
))
3656 to
[LFACE_UNDERLINE_INDEX
] = value
;
3658 add_to_log ("Invalid face underline", value
, Qnil
);
3660 else if (EQ (keyword
, QCoverline
))
3665 to
[LFACE_OVERLINE_INDEX
] = value
;
3667 add_to_log ("Invalid face overline", value
, Qnil
);
3669 else if (EQ (keyword
, QCstrike_through
))
3674 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3676 add_to_log ("Invalid face strike-through", value
, Qnil
);
3678 else if (EQ (keyword
, QCbox
))
3681 value
= make_number (1);
3682 if (INTEGERP (value
)
3686 to
[LFACE_BOX_INDEX
] = value
;
3688 add_to_log ("Invalid face box", value
, Qnil
);
3690 else if (EQ (keyword
, QCinverse_video
)
3691 || EQ (keyword
, QCreverse_video
))
3693 if (EQ (value
, Qt
) || NILP (value
))
3694 to
[LFACE_INVERSE_INDEX
] = value
;
3696 add_to_log ("Invalid face inverse-video", value
, Qnil
);
3698 else if (EQ (keyword
, QCforeground
))
3700 if (STRINGP (value
))
3701 to
[LFACE_FOREGROUND_INDEX
] = value
;
3703 add_to_log ("Invalid face foreground", value
, Qnil
);
3705 else if (EQ (keyword
, QCbackground
))
3707 if (STRINGP (value
))
3708 to
[LFACE_BACKGROUND_INDEX
] = value
;
3710 add_to_log ("Invalid face background", value
, Qnil
);
3712 else if (EQ (keyword
, QCstipple
))
3714 #ifdef HAVE_X_WINDOWS
3715 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3716 if (!NILP (pixmap_p
))
3717 to
[LFACE_STIPPLE_INDEX
] = value
;
3719 add_to_log ("Invalid face stipple", value
, Qnil
);
3722 else if (EQ (keyword
, QCwidth
))
3725 && face_numeric_swidth (value
) >= 0)
3726 to
[LFACE_SWIDTH_INDEX
] = value
;
3728 add_to_log ("Invalid face width", value
, Qnil
);
3730 else if (EQ (keyword
, QCinherit
))
3732 if (SYMBOLP (value
))
3733 to
[LFACE_INHERIT_INDEX
] = value
;
3737 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3738 if (!SYMBOLP (XCAR (tail
)))
3741 to
[LFACE_INHERIT_INDEX
] = value
;
3743 add_to_log ("Invalid face inherit", value
, Qnil
);
3747 add_to_log ("Invalid attribute %s in face property",
3750 prop
= XCDR (XCDR (prop
));
3755 /* This is a list of face specs. Specifications at the
3756 beginning of the list take precedence over later
3757 specifications, so we have to merge starting with the
3758 last specification. */
3759 Lisp_Object next
= XCDR (prop
);
3761 merge_face_vector_with_property (f
, to
, next
);
3762 merge_face_vector_with_property (f
, to
, first
);
3767 /* PROP ought to be a face name. */
3768 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3770 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3772 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, Qnil
);
3777 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3778 Sinternal_make_lisp_face
, 1, 2, 0,
3779 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3780 If FACE was not known as a face before, create a new one.
3781 If optional argument FRAME is specified, make a frame-local face
3782 for that frame. Otherwise operate on the global face definition.
3783 Value is a vector of face attributes. */)
3785 Lisp_Object face
, frame
;
3787 Lisp_Object global_lface
, lface
;
3791 CHECK_SYMBOL (face
);
3792 global_lface
= lface_from_face_name (NULL
, face
, 0);
3796 CHECK_LIVE_FRAME (frame
);
3798 lface
= lface_from_face_name (f
, face
, 0);
3801 f
= NULL
, lface
= Qnil
;
3803 /* Add a global definition if there is none. */
3804 if (NILP (global_lface
))
3806 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3808 AREF (global_lface
, 0) = Qface
;
3809 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3810 Vface_new_frame_defaults
);
3812 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3813 face id to Lisp face is given by the vector lface_id_to_name.
3814 The mapping from Lisp face to Lisp face id is given by the
3815 property `face' of the Lisp face name. */
3816 if (next_lface_id
== lface_id_to_name_size
)
3818 int new_size
= max (50, 2 * lface_id_to_name_size
);
3819 int sz
= new_size
* sizeof *lface_id_to_name
;
3820 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3821 lface_id_to_name_size
= new_size
;
3824 lface_id_to_name
[next_lface_id
] = face
;
3825 Fput (face
, Qface
, make_number (next_lface_id
));
3829 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3830 AREF (global_lface
, i
) = Qunspecified
;
3832 /* Add a frame-local definition. */
3837 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3839 AREF (lface
, 0) = Qface
;
3840 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3843 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3844 AREF (lface
, i
) = Qunspecified
;
3847 lface
= global_lface
;
3849 /* Changing a named face means that all realized faces depending on
3850 that face are invalid. Since we cannot tell which realized faces
3851 depend on the face, make sure they are all removed. This is done
3852 by incrementing face_change_count. The next call to
3853 init_iterator will then free realized faces. */
3854 ++face_change_count
;
3855 ++windows_or_buffers_changed
;
3857 xassert (LFACEP (lface
));
3858 check_lface (lface
);
3863 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3864 Sinternal_lisp_face_p
, 1, 2, 0,
3865 doc
: /* Return non-nil if FACE names a face.
3866 If optional second parameter FRAME is non-nil, check for the
3867 existence of a frame-local face with name FACE on that frame.
3868 Otherwise check for the existence of a global face. */)
3870 Lisp_Object face
, frame
;
3876 CHECK_LIVE_FRAME (frame
);
3877 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3880 lface
= lface_from_face_name (NULL
, face
, 0);
3886 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3887 Sinternal_copy_lisp_face
, 4, 4, 0,
3888 doc
: /* Copy face FROM to TO.
3889 If FRAME it t, copy the global face definition of FROM to the
3890 global face definition of TO. Otherwise, copy the frame-local
3891 definition of FROM on FRAME to the frame-local definition of TO
3892 on NEW-FRAME, or FRAME if NEW-FRAME is nil.
3895 (from
, to
, frame
, new_frame
)
3896 Lisp_Object from
, to
, frame
, new_frame
;
3898 Lisp_Object lface
, copy
;
3900 CHECK_SYMBOL (from
);
3902 if (NILP (new_frame
))
3907 /* Copy global definition of FROM. We don't make copies of
3908 strings etc. because 20.2 didn't do it either. */
3909 lface
= lface_from_face_name (NULL
, from
, 1);
3910 copy
= Finternal_make_lisp_face (to
, Qnil
);
3914 /* Copy frame-local definition of FROM. */
3915 CHECK_LIVE_FRAME (frame
);
3916 CHECK_LIVE_FRAME (new_frame
);
3917 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3918 copy
= Finternal_make_lisp_face (to
, new_frame
);
3921 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3922 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3924 /* Changing a named face means that all realized faces depending on
3925 that face are invalid. Since we cannot tell which realized faces
3926 depend on the face, make sure they are all removed. This is done
3927 by incrementing face_change_count. The next call to
3928 init_iterator will then free realized faces. */
3929 ++face_change_count
;
3930 ++windows_or_buffers_changed
;
3936 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3937 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3938 doc
: /* Set attribute ATTR of FACE to VALUE.
3939 FRAME being a frame means change the face on that frame.
3940 FRAME nil means change the face of the selected frame.
3941 FRAME t means change the default for new frames.
3942 FRAME 0 means change the face on all frames, and change the default
3944 (face
, attr
, value
, frame
)
3945 Lisp_Object face
, attr
, value
, frame
;
3948 Lisp_Object old_value
= Qnil
;
3949 /* Set 1 if ATTR is QCfont. */
3950 int font_attr_p
= 0;
3951 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3952 int font_related_attr_p
= 0;
3954 CHECK_SYMBOL (face
);
3955 CHECK_SYMBOL (attr
);
3957 face
= resolve_face_name (face
);
3959 /* If FRAME is 0, change face on all frames, and change the
3960 default for new frames. */
3961 if (INTEGERP (frame
) && XINT (frame
) == 0)
3964 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3965 FOR_EACH_FRAME (tail
, frame
)
3966 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3970 /* Set lface to the Lisp attribute vector of FACE. */
3972 lface
= lface_from_face_name (NULL
, face
, 1);
3976 frame
= selected_frame
;
3978 CHECK_LIVE_FRAME (frame
);
3979 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3981 /* If a frame-local face doesn't exist yet, create one. */
3983 lface
= Finternal_make_lisp_face (face
, frame
);
3986 if (EQ (attr
, QCfamily
))
3988 if (!UNSPECIFIEDP (value
))
3990 CHECK_STRING (value
);
3991 if (SCHARS (value
) == 0)
3992 signal_error ("Invalid face family", value
);
3994 old_value
= LFACE_FAMILY (lface
);
3995 LFACE_FAMILY (lface
) = value
;
3996 font_related_attr_p
= 1;
3998 else if (EQ (attr
, QCheight
))
4000 if (!UNSPECIFIEDP (value
))
4004 test
= (EQ (face
, Qdefault
)
4006 /* The default face must have an absolute size,
4007 otherwise, we do a test merge with a random
4008 height to see if VALUE's ok. */
4009 : merge_face_heights (value
, make_number (10), Qnil
, Qnil
));
4011 if (!INTEGERP (test
) || XINT (test
) <= 0)
4012 signal_error ("Invalid face height", value
);
4015 old_value
= LFACE_HEIGHT (lface
);
4016 LFACE_HEIGHT (lface
) = value
;
4017 font_related_attr_p
= 1;
4019 else if (EQ (attr
, QCweight
))
4021 if (!UNSPECIFIEDP (value
))
4023 CHECK_SYMBOL (value
);
4024 if (face_numeric_weight (value
) < 0)
4025 signal_error ("Invalid face weight", value
);
4027 old_value
= LFACE_WEIGHT (lface
);
4028 LFACE_WEIGHT (lface
) = value
;
4029 font_related_attr_p
= 1;
4031 else if (EQ (attr
, QCslant
))
4033 if (!UNSPECIFIEDP (value
))
4035 CHECK_SYMBOL (value
);
4036 if (face_numeric_slant (value
) < 0)
4037 signal_error ("Invalid face slant", value
);
4039 old_value
= LFACE_SLANT (lface
);
4040 LFACE_SLANT (lface
) = value
;
4041 font_related_attr_p
= 1;
4043 else if (EQ (attr
, QCunderline
))
4045 if (!UNSPECIFIEDP (value
))
4046 if ((SYMBOLP (value
)
4048 && !EQ (value
, Qnil
))
4049 /* Underline color. */
4051 && SCHARS (value
) == 0))
4052 signal_error ("Invalid face underline", value
);
4054 old_value
= LFACE_UNDERLINE (lface
);
4055 LFACE_UNDERLINE (lface
) = value
;
4057 else if (EQ (attr
, QCoverline
))
4059 if (!UNSPECIFIEDP (value
))
4060 if ((SYMBOLP (value
)
4062 && !EQ (value
, Qnil
))
4063 /* Overline color. */
4065 && SCHARS (value
) == 0))
4066 signal_error ("Invalid face overline", value
);
4068 old_value
= LFACE_OVERLINE (lface
);
4069 LFACE_OVERLINE (lface
) = value
;
4071 else if (EQ (attr
, QCstrike_through
))
4073 if (!UNSPECIFIEDP (value
))
4074 if ((SYMBOLP (value
)
4076 && !EQ (value
, Qnil
))
4077 /* Strike-through color. */
4079 && SCHARS (value
) == 0))
4080 signal_error ("Invalid face strike-through", value
);
4082 old_value
= LFACE_STRIKE_THROUGH (lface
);
4083 LFACE_STRIKE_THROUGH (lface
) = value
;
4085 else if (EQ (attr
, QCbox
))
4089 /* Allow t meaning a simple box of width 1 in foreground color
4092 value
= make_number (1);
4094 if (UNSPECIFIEDP (value
))
4096 else if (NILP (value
))
4098 else if (INTEGERP (value
))
4099 valid_p
= XINT (value
) != 0;
4100 else if (STRINGP (value
))
4101 valid_p
= SCHARS (value
) > 0;
4102 else if (CONSP (value
))
4118 if (EQ (k
, QCline_width
))
4120 if (!INTEGERP (v
) || XINT (v
) == 0)
4123 else if (EQ (k
, QCcolor
))
4125 if (!STRINGP (v
) || SCHARS (v
) == 0)
4128 else if (EQ (k
, QCstyle
))
4130 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4137 valid_p
= NILP (tem
);
4143 signal_error ("Invalid face box", value
);
4145 old_value
= LFACE_BOX (lface
);
4146 LFACE_BOX (lface
) = value
;
4148 else if (EQ (attr
, QCinverse_video
)
4149 || EQ (attr
, QCreverse_video
))
4151 if (!UNSPECIFIEDP (value
))
4153 CHECK_SYMBOL (value
);
4154 if (!EQ (value
, Qt
) && !NILP (value
))
4155 signal_error ("Invalid inverse-video face attribute value", value
);
4157 old_value
= LFACE_INVERSE (lface
);
4158 LFACE_INVERSE (lface
) = value
;
4160 else if (EQ (attr
, QCforeground
))
4162 if (!UNSPECIFIEDP (value
))
4164 /* Don't check for valid color names here because it depends
4165 on the frame (display) whether the color will be valid
4166 when the face is realized. */
4167 CHECK_STRING (value
);
4168 if (SCHARS (value
) == 0)
4169 signal_error ("Empty foreground color value", value
);
4171 old_value
= LFACE_FOREGROUND (lface
);
4172 LFACE_FOREGROUND (lface
) = value
;
4174 else if (EQ (attr
, QCbackground
))
4176 if (!UNSPECIFIEDP (value
))
4178 /* Don't check for valid color names here because it depends
4179 on the frame (display) whether the color will be valid
4180 when the face is realized. */
4181 CHECK_STRING (value
);
4182 if (SCHARS (value
) == 0)
4183 signal_error ("Empty background color value", value
);
4185 old_value
= LFACE_BACKGROUND (lface
);
4186 LFACE_BACKGROUND (lface
) = value
;
4188 else if (EQ (attr
, QCstipple
))
4190 #ifdef HAVE_X_WINDOWS
4191 if (!UNSPECIFIEDP (value
)
4193 && NILP (Fbitmap_spec_p (value
)))
4194 signal_error ("Invalid stipple attribute", value
);
4195 old_value
= LFACE_STIPPLE (lface
);
4196 LFACE_STIPPLE (lface
) = value
;
4197 #endif /* HAVE_X_WINDOWS */
4199 else if (EQ (attr
, QCwidth
))
4201 if (!UNSPECIFIEDP (value
))
4203 CHECK_SYMBOL (value
);
4204 if (face_numeric_swidth (value
) < 0)
4205 signal_error ("Invalid face width", value
);
4207 old_value
= LFACE_SWIDTH (lface
);
4208 LFACE_SWIDTH (lface
) = value
;
4209 font_related_attr_p
= 1;
4211 else if (EQ (attr
, QCfont
))
4213 #ifdef HAVE_WINDOW_SYSTEM
4214 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4216 /* Set font-related attributes of the Lisp face from an XLFD
4222 f
= SELECTED_FRAME ();
4224 f
= check_x_frame (frame
);
4226 if (!UNSPECIFIEDP (value
))
4228 CHECK_STRING (value
);
4230 /* VALUE may be a fontset name or an alias of fontset. In
4231 such a case, use the base fontset name. */
4232 tmp
= Fquery_fontset (value
, Qnil
);
4236 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4237 signal_error ("Invalid font or fontset name", value
);
4242 #endif /* HAVE_WINDOW_SYSTEM */
4244 else if (EQ (attr
, QCinherit
))
4247 if (SYMBOLP (value
))
4250 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4251 if (!SYMBOLP (XCAR (tail
)))
4254 LFACE_INHERIT (lface
) = value
;
4256 signal_error ("Invalid face inheritance", value
);
4258 else if (EQ (attr
, QCbold
))
4260 old_value
= LFACE_WEIGHT (lface
);
4261 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4262 font_related_attr_p
= 1;
4264 else if (EQ (attr
, QCitalic
))
4266 old_value
= LFACE_SLANT (lface
);
4267 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4268 font_related_attr_p
= 1;
4271 signal_error ("Invalid face attribute name", attr
);
4273 if (font_related_attr_p
4274 && !UNSPECIFIEDP (value
))
4275 /* If a font-related attribute other than QCfont is specified, the
4276 original `font' attribute nor that of default face is useless
4277 to determine a new font. Thus, we set it to nil so that font
4278 selection mechanism doesn't use it. */
4279 LFACE_FONT (lface
) = Qnil
;
4281 /* Changing a named face means that all realized faces depending on
4282 that face are invalid. Since we cannot tell which realized faces
4283 depend on the face, make sure they are all removed. This is done
4284 by incrementing face_change_count. The next call to
4285 init_iterator will then free realized faces. */
4287 && (EQ (attr
, QCfont
)
4288 || NILP (Fequal (old_value
, value
))))
4290 ++face_change_count
;
4291 ++windows_or_buffers_changed
;
4294 if (!UNSPECIFIEDP (value
)
4295 && NILP (Fequal (old_value
, value
)))
4301 if (EQ (face
, Qdefault
))
4303 #ifdef HAVE_WINDOW_SYSTEM
4304 /* Changed font-related attributes of the `default' face are
4305 reflected in changed `font' frame parameters. */
4307 && (font_related_attr_p
|| font_attr_p
)
4308 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4309 set_font_frame_param (frame
, lface
);
4311 #endif /* HAVE_WINDOW_SYSTEM */
4313 if (EQ (attr
, QCforeground
))
4314 param
= Qforeground_color
;
4315 else if (EQ (attr
, QCbackground
))
4316 param
= Qbackground_color
;
4318 #ifdef HAVE_WINDOW_SYSTEM
4320 else if (EQ (face
, Qscroll_bar
))
4322 /* Changing the colors of `scroll-bar' sets frame parameters
4323 `scroll-bar-foreground' and `scroll-bar-background'. */
4324 if (EQ (attr
, QCforeground
))
4325 param
= Qscroll_bar_foreground
;
4326 else if (EQ (attr
, QCbackground
))
4327 param
= Qscroll_bar_background
;
4329 #endif /* not WINDOWSNT */
4330 else if (EQ (face
, Qborder
))
4332 /* Changing background color of `border' sets frame parameter
4334 if (EQ (attr
, QCbackground
))
4335 param
= Qborder_color
;
4337 else if (EQ (face
, Qcursor
))
4339 /* Changing background color of `cursor' sets frame parameter
4341 if (EQ (attr
, QCbackground
))
4342 param
= Qcursor_color
;
4344 else if (EQ (face
, Qmouse
))
4346 /* Changing background color of `mouse' sets frame parameter
4348 if (EQ (attr
, QCbackground
))
4349 param
= Qmouse_color
;
4351 #endif /* HAVE_WINDOW_SYSTEM */
4352 else if (EQ (face
, Qmenu
))
4354 /* Indicate that we have to update the menu bar when
4355 realizing faces on FRAME. FRAME t change the
4356 default for new frames. We do this by setting
4357 setting the flag in new face caches */
4360 struct frame
*f
= XFRAME (frame
);
4361 if (FRAME_FACE_CACHE (f
) == NULL
)
4362 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4363 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4366 menu_face_changed_default
= 1;
4372 /* Update `default-frame-alist', which is used for new frames. */
4374 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4377 /* Update the current frame's parameters. */
4380 cons
= XCAR (Vparam_value_alist
);
4381 XSETCAR (cons
, param
);
4382 XSETCDR (cons
, value
);
4383 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4392 #ifdef HAVE_WINDOW_SYSTEM
4394 /* Set the `font' frame parameter of FRAME determined from `default'
4395 face attributes LFACE. If a face or fontset name is explicitely
4396 specfied in LFACE, use it as is. Otherwise, determine a font name
4397 from the other font-related atrributes of LFACE. In that case, if
4398 there's no matching font, signals an error. */
4401 set_font_frame_param (frame
, lface
)
4402 Lisp_Object frame
, lface
;
4404 struct frame
*f
= XFRAME (frame
);
4406 if (FRAME_WINDOW_P (f
))
4408 Lisp_Object font_name
;
4411 if (STRINGP (LFACE_FONT (lface
)))
4412 font_name
= LFACE_FONT (lface
);
4415 /* Choose a font name that reflects LFACE's attributes and has
4416 the registry and encoding pattern specified in the default
4417 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4418 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4420 error ("No font matches the specified attribute");
4421 font_name
= build_string (font
);
4425 f
->default_face_done_p
= 0;
4426 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4431 /* Update the corresponding face when frame parameter PARAM on frame F
4432 has been assigned the value NEW_VALUE. */
4435 update_face_from_frame_parameter (f
, param
, new_value
)
4437 Lisp_Object param
, new_value
;
4441 /* If there are no faces yet, give up. This is the case when called
4442 from Fx_create_frame, and we do the necessary things later in
4443 face-set-after-frame-defaults. */
4444 if (NILP (f
->face_alist
))
4447 /* Changing a named face means that all realized faces depending on
4448 that face are invalid. Since we cannot tell which realized faces
4449 depend on the face, make sure they are all removed. This is done
4450 by incrementing face_change_count. The next call to
4451 init_iterator will then free realized faces. */
4452 ++face_change_count
;
4453 ++windows_or_buffers_changed
;
4455 if (EQ (param
, Qforeground_color
))
4457 lface
= lface_from_face_name (f
, Qdefault
, 1);
4458 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4459 ? new_value
: Qunspecified
);
4460 realize_basic_faces (f
);
4462 else if (EQ (param
, Qbackground_color
))
4466 /* Changing the background color might change the background
4467 mode, so that we have to load new defface specs. Call
4468 frame-update-face-colors to do that. */
4469 XSETFRAME (frame
, f
);
4470 call1 (Qframe_update_face_colors
, frame
);
4472 lface
= lface_from_face_name (f
, Qdefault
, 1);
4473 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4474 ? new_value
: Qunspecified
);
4475 realize_basic_faces (f
);
4477 if (EQ (param
, Qborder_color
))
4479 lface
= lface_from_face_name (f
, Qborder
, 1);
4480 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4481 ? new_value
: Qunspecified
);
4483 else if (EQ (param
, Qcursor_color
))
4485 lface
= lface_from_face_name (f
, Qcursor
, 1);
4486 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4487 ? new_value
: Qunspecified
);
4489 else if (EQ (param
, Qmouse_color
))
4491 lface
= lface_from_face_name (f
, Qmouse
, 1);
4492 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4493 ? new_value
: Qunspecified
);
4498 /* Get the value of X resource RESOURCE, class CLASS for the display
4499 of frame FRAME. This is here because ordinary `x-get-resource'
4500 doesn't take a frame argument. */
4502 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4503 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4504 (resource
, class, frame
)
4505 Lisp_Object resource
, class, frame
;
4507 Lisp_Object value
= Qnil
;
4508 CHECK_STRING (resource
);
4509 CHECK_STRING (class);
4510 CHECK_LIVE_FRAME (frame
);
4512 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4513 resource
, class, Qnil
, Qnil
);
4519 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4520 If VALUE is "on" or "true", return t. If VALUE is "off" or
4521 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4522 error; if SIGNAL_P is zero, return 0. */
4525 face_boolean_x_resource_value (value
, signal_p
)
4529 Lisp_Object result
= make_number (0);
4531 xassert (STRINGP (value
));
4533 if (xstricmp (SDATA (value
), "on") == 0
4534 || xstricmp (SDATA (value
), "true") == 0)
4536 else if (xstricmp (SDATA (value
), "off") == 0
4537 || xstricmp (SDATA (value
), "false") == 0)
4539 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4540 result
= Qunspecified
;
4542 signal_error ("Invalid face attribute value from X resource", value
);
4548 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4549 Finternal_set_lisp_face_attribute_from_resource
,
4550 Sinternal_set_lisp_face_attribute_from_resource
,
4551 3, 4, 0, doc
: /* */)
4552 (face
, attr
, value
, frame
)
4553 Lisp_Object face
, attr
, value
, frame
;
4555 CHECK_SYMBOL (face
);
4556 CHECK_SYMBOL (attr
);
4557 CHECK_STRING (value
);
4559 if (xstricmp (SDATA (value
), "unspecified") == 0)
4560 value
= Qunspecified
;
4561 else if (EQ (attr
, QCheight
))
4563 value
= Fstring_to_number (value
, make_number (10));
4564 if (XINT (value
) <= 0)
4565 signal_error ("Invalid face height from X resource", value
);
4567 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4568 value
= face_boolean_x_resource_value (value
, 1);
4569 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4570 value
= intern (SDATA (value
));
4571 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4572 value
= face_boolean_x_resource_value (value
, 1);
4573 else if (EQ (attr
, QCunderline
)
4574 || EQ (attr
, QCoverline
)
4575 || EQ (attr
, QCstrike_through
))
4577 Lisp_Object boolean_value
;
4579 /* If the result of face_boolean_x_resource_value is t or nil,
4580 VALUE does NOT specify a color. */
4581 boolean_value
= face_boolean_x_resource_value (value
, 0);
4582 if (SYMBOLP (boolean_value
))
4583 value
= boolean_value
;
4585 else if (EQ (attr
, QCbox
))
4586 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4588 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4591 #endif /* HAVE_WINDOW_SYSTEM */
4594 /***********************************************************************
4596 ***********************************************************************/
4598 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4600 /* Make menus on frame F appear as specified by the `menu' face. */
4603 x_update_menu_appearance (f
)
4606 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4610 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4614 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4615 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4616 const char *myname
= SDATA (Vx_resource_name
);
4619 const char *popup_path
= "popup_menu";
4621 const char *popup_path
= "menu.popup";
4624 if (STRINGP (LFACE_FOREGROUND (lface
)))
4626 sprintf (line
, "%s.%s*foreground: %s",
4628 SDATA (LFACE_FOREGROUND (lface
)));
4629 XrmPutLineResource (&rdb
, line
);
4630 sprintf (line
, "%s.pane.menubar*foreground: %s",
4631 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4632 XrmPutLineResource (&rdb
, line
);
4636 if (STRINGP (LFACE_BACKGROUND (lface
)))
4638 sprintf (line
, "%s.%s*background: %s",
4640 SDATA (LFACE_BACKGROUND (lface
)));
4641 XrmPutLineResource (&rdb
, line
);
4642 sprintf (line
, "%s.pane.menubar*background: %s",
4643 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4644 XrmPutLineResource (&rdb
, line
);
4649 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4650 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4651 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4652 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4653 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4654 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4657 const char *suffix
= "List";
4659 const char *suffix
= "";
4661 sprintf (line
, "%s.pane.menubar*font%s: %s",
4662 myname
, suffix
, face
->font_name
);
4663 XrmPutLineResource (&rdb
, line
);
4664 sprintf (line
, "%s.%s*font%s: %s",
4665 myname
, popup_path
, suffix
, face
->font_name
);
4666 XrmPutLineResource (&rdb
, line
);
4670 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4671 free_frame_menubar (f
);
4675 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4678 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4679 Sface_attribute_relative_p
,
4681 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4683 Lisp_Object attribute
, value
;
4685 if (EQ (value
, Qunspecified
))
4687 else if (EQ (attribute
, QCheight
))
4688 return INTEGERP (value
) ? Qnil
: Qt
;
4693 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4695 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4696 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4697 the result will be absolute, otherwise it will be relative. */)
4698 (attribute
, value1
, value2
)
4699 Lisp_Object attribute
, value1
, value2
;
4701 if (EQ (value1
, Qunspecified
))
4703 else if (EQ (attribute
, QCheight
))
4704 return merge_face_heights (value1
, value2
, value1
, Qnil
);
4710 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4711 Sinternal_get_lisp_face_attribute
,
4713 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4714 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4715 face attribute name, signal an error.
4716 If the optional argument FRAME is given, report on face FACE in that
4717 frame. If FRAME is t, report on the defaults for face FACE (for new
4718 frames). If FRAME is omitted or nil, use the selected frame. */)
4719 (symbol
, keyword
, frame
)
4720 Lisp_Object symbol
, keyword
, frame
;
4722 Lisp_Object lface
, value
= Qnil
;
4724 CHECK_SYMBOL (symbol
);
4725 CHECK_SYMBOL (keyword
);
4728 lface
= lface_from_face_name (NULL
, symbol
, 1);
4732 frame
= selected_frame
;
4733 CHECK_LIVE_FRAME (frame
);
4734 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4737 if (EQ (keyword
, QCfamily
))
4738 value
= LFACE_FAMILY (lface
);
4739 else if (EQ (keyword
, QCheight
))
4740 value
= LFACE_HEIGHT (lface
);
4741 else if (EQ (keyword
, QCweight
))
4742 value
= LFACE_WEIGHT (lface
);
4743 else if (EQ (keyword
, QCslant
))
4744 value
= LFACE_SLANT (lface
);
4745 else if (EQ (keyword
, QCunderline
))
4746 value
= LFACE_UNDERLINE (lface
);
4747 else if (EQ (keyword
, QCoverline
))
4748 value
= LFACE_OVERLINE (lface
);
4749 else if (EQ (keyword
, QCstrike_through
))
4750 value
= LFACE_STRIKE_THROUGH (lface
);
4751 else if (EQ (keyword
, QCbox
))
4752 value
= LFACE_BOX (lface
);
4753 else if (EQ (keyword
, QCinverse_video
)
4754 || EQ (keyword
, QCreverse_video
))
4755 value
= LFACE_INVERSE (lface
);
4756 else if (EQ (keyword
, QCforeground
))
4757 value
= LFACE_FOREGROUND (lface
);
4758 else if (EQ (keyword
, QCbackground
))
4759 value
= LFACE_BACKGROUND (lface
);
4760 else if (EQ (keyword
, QCstipple
))
4761 value
= LFACE_STIPPLE (lface
);
4762 else if (EQ (keyword
, QCwidth
))
4763 value
= LFACE_SWIDTH (lface
);
4764 else if (EQ (keyword
, QCinherit
))
4765 value
= LFACE_INHERIT (lface
);
4766 else if (EQ (keyword
, QCfont
))
4767 value
= LFACE_FONT (lface
);
4769 signal_error ("Invalid face attribute name", keyword
);
4775 DEFUN ("internal-lisp-face-attribute-values",
4776 Finternal_lisp_face_attribute_values
,
4777 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4778 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4779 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4783 Lisp_Object result
= Qnil
;
4785 CHECK_SYMBOL (attr
);
4787 if (EQ (attr
, QCweight
)
4788 || EQ (attr
, QCslant
)
4789 || EQ (attr
, QCwidth
))
4791 /* Extract permissible symbols from tables. */
4792 struct table_entry
*table
;
4795 if (EQ (attr
, QCweight
))
4796 table
= weight_table
, dim
= DIM (weight_table
);
4797 else if (EQ (attr
, QCslant
))
4798 table
= slant_table
, dim
= DIM (slant_table
);
4800 table
= swidth_table
, dim
= DIM (swidth_table
);
4802 for (i
= 0; i
< dim
; ++i
)
4804 Lisp_Object symbol
= *table
[i
].symbol
;
4805 Lisp_Object tail
= result
;
4808 && !EQ (XCAR (tail
), symbol
))
4812 result
= Fcons (symbol
, result
);
4815 else if (EQ (attr
, QCunderline
))
4816 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4817 else if (EQ (attr
, QCoverline
))
4818 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4819 else if (EQ (attr
, QCstrike_through
))
4820 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4821 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4822 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4828 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4829 Sinternal_merge_in_global_face
, 2, 2, 0,
4830 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4831 Default face attributes override any local face attributes. */)
4833 Lisp_Object face
, frame
;
4836 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4838 CHECK_LIVE_FRAME (frame
);
4839 global_lface
= lface_from_face_name (NULL
, face
, 1);
4840 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4841 if (NILP (local_lface
))
4842 local_lface
= Finternal_make_lisp_face (face
, frame
);
4844 /* Make every specified global attribute override the local one.
4845 BEWARE!! This is only used from `face-set-after-frame-default' where
4846 the local frame is defined from default specs in `face-defface-spec'
4847 and those should be overridden by global settings. Hence the strange
4848 "global before local" priority. */
4849 lvec
= XVECTOR (local_lface
)->contents
;
4850 gvec
= XVECTOR (global_lface
)->contents
;
4851 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4852 if (! UNSPECIFIEDP (gvec
[i
]))
4859 /* The following function is implemented for compatibility with 20.2.
4860 The function is used in x-resolve-fonts when it is asked to
4861 return fonts with the same size as the font of a face. This is
4862 done in fontset.el. */
4864 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4865 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4866 If the optional argument FRAME is given, report on face FACE in that frame.
4867 If FRAME is t, report on the defaults for face FACE (for new frames).
4868 The font default for a face is either nil, or a list
4869 of the form (bold), (italic) or (bold italic).
4870 If FRAME is omitted or nil, use the selected frame. */)
4872 Lisp_Object face
, frame
;
4876 Lisp_Object result
= Qnil
;
4877 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4879 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4880 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4881 result
= Fcons (Qbold
, result
);
4883 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4884 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4885 result
= Fcons (Qitalic
, result
);
4891 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4892 int face_id
= lookup_named_face (f
, face
, 0);
4893 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4894 return face
? build_string (face
->font_name
) : Qnil
;
4899 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4900 all attributes are `equal'. Tries to be fast because this function
4901 is called quite often. */
4904 lface_equal_p (v1
, v2
)
4905 Lisp_Object
*v1
, *v2
;
4909 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4911 Lisp_Object a
= v1
[i
];
4912 Lisp_Object b
= v2
[i
];
4914 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4915 and the other is specified. */
4916 equal_p
= XTYPE (a
) == XTYPE (b
);
4925 equal_p
= ((SBYTES (a
)
4927 && bcmp (SDATA (a
), SDATA (b
),
4937 equal_p
= !NILP (Fequal (a
, b
));
4947 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4948 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4949 doc
: /* True if FACE1 and FACE2 are equal.
4950 If the optional argument FRAME is given, report on face FACE in that frame.
4951 If FRAME is t, report on the defaults for face FACE (for new frames).
4952 If FRAME is omitted or nil, use the selected frame. */)
4953 (face1
, face2
, frame
)
4954 Lisp_Object face1
, face2
, frame
;
4958 Lisp_Object lface1
, lface2
;
4963 /* Don't use check_x_frame here because this function is called
4964 before X frames exist. At that time, if FRAME is nil,
4965 selected_frame will be used which is the frame dumped with
4966 Emacs. That frame is not an X frame. */
4967 f
= frame_or_selected_frame (frame
, 2);
4969 lface1
= lface_from_face_name (NULL
, face1
, 1);
4970 lface2
= lface_from_face_name (NULL
, face2
, 1);
4971 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4972 XVECTOR (lface2
)->contents
);
4973 return equal_p
? Qt
: Qnil
;
4977 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4978 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4979 doc
: /* True if FACE has no attribute specified.
4980 If the optional argument FRAME is given, report on face FACE in that frame.
4981 If FRAME is t, report on the defaults for face FACE (for new frames).
4982 If FRAME is omitted or nil, use the selected frame. */)
4984 Lisp_Object face
, frame
;
4991 frame
= selected_frame
;
4992 CHECK_LIVE_FRAME (frame
);
4996 lface
= lface_from_face_name (NULL
, face
, 1);
4998 lface
= lface_from_face_name (f
, face
, 1);
5000 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5001 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5004 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5008 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5010 doc
: /* Return an alist of frame-local faces defined on FRAME.
5011 For internal use only. */)
5015 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5016 return f
->face_alist
;
5020 /* Return a hash code for Lisp string STRING with case ignored. Used
5021 below in computing a hash value for a Lisp face. */
5023 static INLINE
unsigned
5024 hash_string_case_insensitive (string
)
5027 const unsigned char *s
;
5029 xassert (STRINGP (string
));
5030 for (s
= SDATA (string
); *s
; ++s
)
5031 hash
= (hash
<< 1) ^ tolower (*s
);
5036 /* Return a hash code for face attribute vector V. */
5038 static INLINE
unsigned
5042 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5043 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5044 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5045 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5046 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5047 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5048 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5052 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5053 considering charsets/registries). They do if they specify the same
5054 family, point size, weight, width, slant, and fontset. Both LFACE1
5055 and LFACE2 must be fully-specified. */
5058 lface_same_font_attributes_p (lface1
, lface2
)
5059 Lisp_Object
*lface1
, *lface2
;
5061 xassert (lface_fully_specified_p (lface1
)
5062 && lface_fully_specified_p (lface2
));
5063 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5064 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5065 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5066 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5067 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5068 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5069 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5070 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5071 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5072 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5073 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5074 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5079 /***********************************************************************
5081 ***********************************************************************/
5083 /* Allocate and return a new realized face for Lisp face attribute
5086 static struct face
*
5087 make_realized_face (attr
)
5090 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5091 bzero (face
, sizeof *face
);
5092 face
->ascii_face
= face
;
5093 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5098 /* Free realized face FACE, including its X resources. FACE may
5102 free_realized_face (f
, face
)
5108 #ifdef HAVE_WINDOW_SYSTEM
5109 if (FRAME_WINDOW_P (f
))
5111 /* Free fontset of FACE if it is ASCII face. */
5112 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5113 free_face_fontset (f
, face
);
5116 x_free_gc (f
, face
->gc
);
5120 free_face_colors (f
, face
);
5121 x_destroy_bitmap (f
, face
->stipple
);
5123 #endif /* HAVE_WINDOW_SYSTEM */
5130 /* Prepare face FACE for subsequent display on frame F. This
5131 allocated GCs if they haven't been allocated yet or have been freed
5132 by clearing the face cache. */
5135 prepare_face_for_display (f
, face
)
5139 #ifdef HAVE_WINDOW_SYSTEM
5140 xassert (FRAME_WINDOW_P (f
));
5145 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5147 xgcv
.foreground
= face
->foreground
;
5148 xgcv
.background
= face
->background
;
5149 #ifdef HAVE_X_WINDOWS
5150 xgcv
.graphics_exposures
= False
;
5152 /* The font of FACE may be null if we couldn't load it. */
5155 #ifdef HAVE_X_WINDOWS
5156 xgcv
.font
= face
->font
->fid
;
5159 xgcv
.font
= face
->font
;
5162 xgcv
.font
= face
->font
;
5168 #ifdef HAVE_X_WINDOWS
5171 xgcv
.fill_style
= FillOpaqueStippled
;
5172 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5173 mask
|= GCFillStyle
| GCStipple
;
5176 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5179 #endif /* HAVE_WINDOW_SYSTEM */
5183 /* Returns the `distance' between the colors X and Y. */
5186 color_distance (x
, y
)
5189 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5190 Quoting from that paper:
5192 This formula has results that are very close to L*u*v* (with the
5193 modified lightness curve) and, more importantly, it is a more even
5194 algorithm: it does not have a range of colours where it suddenly
5195 gives far from optimal results.
5197 See <http://www.compuphase.com/cmetric.htm> for more info. */
5199 long r
= (x
->red
- y
->red
) >> 8;
5200 long g
= (x
->green
- y
->green
) >> 8;
5201 long b
= (x
->blue
- y
->blue
) >> 8;
5202 long r_mean
= (x
->red
+ y
->red
) >> 9;
5205 (((512 + r_mean
) * r
* r
) >> 8)
5207 + (((767 - r_mean
) * b
* b
) >> 8);
5211 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5212 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5213 COLOR1 and COLOR2 may be either strings containing the color name,
5214 or lists of the form (RED GREEN BLUE).
5215 If FRAME is unspecified or nil, the current frame is used. */)
5216 (color1
, color2
, frame
)
5217 Lisp_Object color1
, color2
, frame
;
5220 XColor cdef1
, cdef2
;
5223 frame
= selected_frame
;
5224 CHECK_LIVE_FRAME (frame
);
5227 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5228 || !STRINGP (color1
)
5229 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5230 signal_error ("Invalid color", color1
);
5231 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5232 || !STRINGP (color2
)
5233 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5234 signal_error ("Invalid color", color2
);
5236 return make_number (color_distance (&cdef1
, &cdef2
));
5240 /***********************************************************************
5241 Face capability testing for ttys
5242 ***********************************************************************/
5245 /* If the distance (as returned by color_distance) between two colors is
5246 less than this, then they are considered the same, for determining
5247 whether a color is supported or not. The range of values is 0-65535. */
5249 #define TTY_SAME_COLOR_THRESHOLD 10000
5252 DEFUN ("tty-supports-face-attributes-p",
5253 Ftty_supports_face_attributes_p
, Stty_supports_face_attributes_p
,
5255 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5256 The optional argument FRAME is the frame on which to test; if it is nil
5257 or unspecified, then the current frame is used. If FRAME is not a tty
5258 frame, then nil is returned.
5260 The definition of `supported' is somewhat heuristic, but basically means
5261 that a face containing all the attributes in ATTRIBUTES, when merged
5262 with the default face for display, can be represented in a way that's
5264 \(1) different in appearance than the default face, and
5265 \(2) `close in spirit' to what the attributes specify, if not exact.
5267 Point (2) implies that a `:weight black' attribute will be satisified
5268 by any terminal that can display bold, and a `:foreground "yellow"' as
5269 long as the terminal can display a yellowish color, but `:slant italic'
5270 will _not_ be satisified by the tty display code's automatic
5271 substitution of a `dim' face for italic. */)
5273 Lisp_Object attributes
, frame
;
5277 Lisp_Object val
, fg
, bg
;
5278 XColor fg_tty_color
, fg_std_color
;
5279 XColor bg_tty_color
, bg_std_color
;
5280 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5281 unsigned test_caps
= 0;
5284 frame
= selected_frame
;
5285 CHECK_LIVE_FRAME (frame
);
5288 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5289 attrs
[i
] = Qunspecified
;
5290 merge_face_vector_with_property (f
, attrs
, attributes
);
5292 /* This function only works on ttys. */
5293 if (!FRAME_TERMCAP_P (f
) && !FRAME_MSDOS_P (f
))
5296 /* First check some easy-to-check stuff; ttys support none of the
5297 following attributes, so we can just return nil if any are requested. */
5300 val
= attrs
[LFACE_STIPPLE_INDEX
];
5301 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5305 val
= attrs
[LFACE_HEIGHT_INDEX
];
5306 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5310 val
= attrs
[LFACE_SWIDTH_INDEX
];
5311 if (!UNSPECIFIEDP (val
) && !NILP (val
)
5312 && face_numeric_swidth (val
) != XLFD_SWIDTH_MEDIUM
)
5316 val
= attrs
[LFACE_OVERLINE_INDEX
];
5317 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5320 /* strike-through */
5321 val
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5322 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5326 val
= attrs
[LFACE_BOX_INDEX
];
5327 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5330 /* slant (italics/oblique); We consider any non-default value
5331 unsupportable on ttys, even though the face code actually `fakes'
5332 them using a dim attribute if possible. This is because the faked
5333 result is too different from what the face specifies. */
5334 val
= attrs
[LFACE_SLANT_INDEX
];
5335 if (!UNSPECIFIEDP (val
) && !NILP (val
)
5336 && face_numeric_slant (val
) != XLFD_SLANT_ROMAN
)
5340 /* Test for terminal `capabilities' (non-color character attributes). */
5342 /* font weight (bold/dim) */
5343 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5346 if (weight
> XLFD_WEIGHT_MEDIUM
)
5347 test_caps
= TTY_CAP_BOLD
;
5348 else if (weight
< XLFD_WEIGHT_MEDIUM
)
5349 test_caps
= TTY_CAP_DIM
;
5353 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5354 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5357 return Qnil
; /* ttys don't support colored underlines */
5359 test_caps
|= TTY_CAP_UNDERLINE
;
5363 val
= attrs
[LFACE_INVERSE_INDEX
];
5364 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5365 test_caps
|= TTY_CAP_INVERSE
;
5368 /* Color testing. */
5370 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5371 we use them when calling `tty_capable_p' below, even if the face
5372 specifies no colors. */
5373 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5374 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5376 /* Check if foreground color is close enough. */
5377 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5380 if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5382 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5383 > TTY_SAME_COLOR_THRESHOLD
)
5387 /* Check if background color is close enough. */
5388 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5391 if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5393 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5394 > TTY_SAME_COLOR_THRESHOLD
)
5398 /* If both foreground and background are requested, see if the
5399 distance between them is OK. We just check to see if the distance
5400 between the tty's foreground and background is close enough to the
5401 distance between the standard foreground and background. */
5402 if (STRINGP (fg
) && STRINGP (bg
))
5405 = (color_distance (&fg_std_color
, &bg_std_color
)
5406 - color_distance (&fg_tty_color
, &bg_tty_color
));
5407 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5408 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5413 /* See if the capabilities we selected above are supported, with the
5415 if (test_caps
!= 0 &&
5416 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5420 /* Hmmm, everything checks out, this terminal must support this face. */
5426 /***********************************************************************
5428 ***********************************************************************/
5430 /* Return a new face cache for frame F. */
5432 static struct face_cache
*
5436 struct face_cache
*c
;
5439 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5440 bzero (c
, sizeof *c
);
5441 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5442 c
->buckets
= (struct face
**) xmalloc (size
);
5443 bzero (c
->buckets
, size
);
5445 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5447 c
->menu_face_changed_p
= menu_face_changed_default
;
5452 /* Clear out all graphics contexts for all realized faces, except for
5453 the basic faces. This should be done from time to time just to avoid
5454 keeping too many graphics contexts that are no longer needed. */
5458 struct face_cache
*c
;
5460 if (c
&& FRAME_WINDOW_P (c
->f
))
5462 #ifdef HAVE_WINDOW_SYSTEM
5464 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5466 struct face
*face
= c
->faces_by_id
[i
];
5467 if (face
&& face
->gc
)
5469 x_free_gc (c
->f
, face
->gc
);
5473 #endif /* HAVE_WINDOW_SYSTEM */
5478 /* Free all realized faces in face cache C, including basic faces. C
5479 may be null. If faces are freed, make sure the frame's current
5480 matrix is marked invalid, so that a display caused by an expose
5481 event doesn't try to use faces we destroyed. */
5484 free_realized_faces (c
)
5485 struct face_cache
*c
;
5490 struct frame
*f
= c
->f
;
5492 /* We must block input here because we can't process X events
5493 safely while only some faces are freed, or when the frame's
5494 current matrix still references freed faces. */
5497 for (i
= 0; i
< c
->used
; ++i
)
5499 free_realized_face (f
, c
->faces_by_id
[i
]);
5500 c
->faces_by_id
[i
] = NULL
;
5504 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5505 bzero (c
->buckets
, size
);
5507 /* Must do a thorough redisplay the next time. Mark current
5508 matrices as invalid because they will reference faces freed
5509 above. This function is also called when a frame is
5510 destroyed. In this case, the root window of F is nil. */
5511 if (WINDOWP (f
->root_window
))
5513 clear_current_matrices (f
);
5514 ++windows_or_buffers_changed
;
5522 /* Free all faces realized for multibyte characters on frame F that
5526 free_realized_multibyte_face (f
, fontset
)
5530 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5534 /* We must block input here because we can't process X events safely
5535 while only some faces are freed, or when the frame's current
5536 matrix still references freed faces. */
5539 for (i
= 0; i
< cache
->used
; i
++)
5541 face
= cache
->faces_by_id
[i
];
5543 && face
!= face
->ascii_face
5544 && face
->fontset
== fontset
)
5546 uncache_face (cache
, face
);
5547 free_realized_face (f
, face
);
5551 /* Must do a thorough redisplay the next time. Mark current
5552 matrices as invalid because they will reference faces freed
5553 above. This function is also called when a frame is destroyed.
5554 In this case, the root window of F is nil. */
5555 if (WINDOWP (f
->root_window
))
5557 clear_current_matrices (f
);
5558 ++windows_or_buffers_changed
;
5565 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5566 This is done after attributes of a named face have been changed,
5567 because we can't tell which realized faces depend on that face. */
5570 free_all_realized_faces (frame
)
5576 FOR_EACH_FRAME (rest
, frame
)
5577 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5580 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5584 /* Free face cache C and faces in it, including their X resources. */
5588 struct face_cache
*c
;
5592 free_realized_faces (c
);
5594 xfree (c
->faces_by_id
);
5600 /* Cache realized face FACE in face cache C. HASH is the hash value
5601 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5602 collision list of the face hash table of C. This is done because
5603 otherwise lookup_face would find FACE for every character, even if
5604 faces with the same attributes but for specific characters exist. */
5607 cache_face (c
, face
, hash
)
5608 struct face_cache
*c
;
5612 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5616 if (face
->fontset
>= 0)
5618 struct face
*last
= c
->buckets
[i
];
5629 c
->buckets
[i
] = face
;
5630 face
->prev
= face
->next
= NULL
;
5636 face
->next
= c
->buckets
[i
];
5638 face
->next
->prev
= face
;
5639 c
->buckets
[i
] = face
;
5642 /* Find a free slot in C->faces_by_id and use the index of the free
5643 slot as FACE->id. */
5644 for (i
= 0; i
< c
->used
; ++i
)
5645 if (c
->faces_by_id
[i
] == NULL
)
5649 /* Maybe enlarge C->faces_by_id. */
5652 if (c
->used
== c
->size
)
5655 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5656 if (new_size
== c
->size
)
5657 abort (); /* Alternatives? ++kfs */
5658 sz
= new_size
* sizeof *c
->faces_by_id
;
5659 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5666 /* Check that FACE got a unique id. */
5671 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5672 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5678 #endif /* GLYPH_DEBUG */
5680 c
->faces_by_id
[i
] = face
;
5684 /* Remove face FACE from cache C. */
5687 uncache_face (c
, face
)
5688 struct face_cache
*c
;
5691 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5694 face
->prev
->next
= face
->next
;
5696 c
->buckets
[i
] = face
->next
;
5699 face
->next
->prev
= face
->prev
;
5701 c
->faces_by_id
[face
->id
] = NULL
;
5702 if (face
->id
== c
->used
)
5707 /* Look up a realized face with face attributes ATTR in the face cache
5708 of frame F. The face will be used to display character C. Value
5709 is the ID of the face found. If no suitable face is found, realize
5710 a new one. In that case, if C is a multibyte character, BASE_FACE
5711 is a face that has the same attributes. */
5714 lookup_face (f
, attr
, c
, base_face
)
5718 struct face
*base_face
;
5720 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5725 xassert (cache
!= NULL
);
5726 check_lface_attrs (attr
);
5728 /* Look up ATTR in the face cache. */
5729 hash
= lface_hash (attr
);
5730 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5732 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5733 if (face
->hash
== hash
5734 && (!FRAME_WINDOW_P (f
)
5735 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5736 && lface_equal_p (face
->lface
, attr
))
5739 /* If not found, realize a new face. */
5741 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5744 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5746 /* When this function is called from face_for_char (in this case, C is
5747 a multibyte character), a fontset of a face returned by
5748 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5749 C) is not sutisfied. The fontset is set for this face by
5750 face_for_char later. */
5752 if (FRAME_WINDOW_P (f
))
5753 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5755 #endif /* GLYPH_DEBUG */
5761 /* Return the face id of the realized face for named face SYMBOL on
5762 frame F suitable for displaying character C. Value is -1 if the
5763 face couldn't be determined, which might happen if the default face
5764 isn't realized and cannot be realized. */
5767 lookup_named_face (f
, symbol
, c
)
5772 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5773 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5774 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5776 if (default_face
== NULL
)
5778 if (!realize_basic_faces (f
))
5780 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5783 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5784 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5785 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5786 return lookup_face (f
, attrs
, c
, NULL
);
5790 /* Return the ID of the realized ASCII face of Lisp face with ID
5791 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5794 ascii_face_of_lisp_face (f
, lface_id
)
5800 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5802 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5803 face_id
= lookup_named_face (f
, face_name
, 0);
5812 /* Return a face for charset ASCII that is like the face with id
5813 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5814 STEPS < 0 means larger. Value is the id of the face. */
5817 smaller_face (f
, face_id
, steps
)
5821 #ifdef HAVE_WINDOW_SYSTEM
5823 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5824 int pt
, last_pt
, last_height
;
5827 struct face
*new_face
;
5829 /* If not called for an X frame, just return the original face. */
5830 if (FRAME_TERMCAP_P (f
))
5833 /* Try in increments of 1/2 pt. */
5834 delta
= steps
< 0 ? 5 : -5;
5835 steps
= abs (steps
);
5837 face
= FACE_FROM_ID (f
, face_id
);
5838 bcopy (face
->lface
, attrs
, sizeof attrs
);
5839 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5840 new_face_id
= face_id
;
5841 last_height
= FONT_HEIGHT (face
->font
);
5845 /* Give up if we cannot find a font within 10pt. */
5846 && abs (last_pt
- pt
) < 100)
5848 /* Look up a face for a slightly smaller/larger font. */
5850 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5851 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5852 new_face
= FACE_FROM_ID (f
, new_face_id
);
5854 /* If height changes, count that as one step. */
5855 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5856 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5859 last_height
= FONT_HEIGHT (new_face
->font
);
5866 #else /* not HAVE_WINDOW_SYSTEM */
5870 #endif /* not HAVE_WINDOW_SYSTEM */
5874 /* Return a face for charset ASCII that is like the face with id
5875 FACE_ID on frame F, but has height HEIGHT. */
5878 face_with_height (f
, face_id
, height
)
5883 #ifdef HAVE_WINDOW_SYSTEM
5885 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5887 if (FRAME_TERMCAP_P (f
)
5891 face
= FACE_FROM_ID (f
, face_id
);
5892 bcopy (face
->lface
, attrs
, sizeof attrs
);
5893 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5894 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5895 #endif /* HAVE_WINDOW_SYSTEM */
5901 /* Return the face id of the realized face for named face SYMBOL on
5902 frame F suitable for displaying character C, and use attributes of
5903 the face FACE_ID for attributes that aren't completely specified by
5904 SYMBOL. This is like lookup_named_face, except that the default
5905 attributes come from FACE_ID, not from the default face. FACE_ID
5906 is assumed to be already realized. */
5909 lookup_derived_face (f
, symbol
, c
, face_id
)
5915 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5916 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5917 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5922 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5923 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5924 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5925 return lookup_face (f
, attrs
, c
, default_face
);
5928 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5929 Sface_attributes_as_vector
, 1, 1, 0,
5930 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5935 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5937 merge_face_vector_with_property (XFRAME (selected_frame
),
5938 XVECTOR (lface
)->contents
,
5945 /***********************************************************************
5947 ***********************************************************************/
5949 DEFUN ("internal-set-font-selection-order",
5950 Finternal_set_font_selection_order
,
5951 Sinternal_set_font_selection_order
, 1, 1, 0,
5952 doc
: /* Set font selection order for face font selection to ORDER.
5953 ORDER must be a list of length 4 containing the symbols `:width',
5954 `:height', `:weight', and `:slant'. Face attributes appearing
5955 first in ORDER are matched first, e.g. if `:height' appears before
5956 `:weight' in ORDER, font selection first tries to find a font with
5957 a suitable height, and then tries to match the font weight.
5964 int indices
[DIM (font_sort_order
)];
5967 bzero (indices
, sizeof indices
);
5971 CONSP (list
) && i
< DIM (indices
);
5972 list
= XCDR (list
), ++i
)
5974 Lisp_Object attr
= XCAR (list
);
5977 if (EQ (attr
, QCwidth
))
5979 else if (EQ (attr
, QCheight
))
5980 xlfd
= XLFD_POINT_SIZE
;
5981 else if (EQ (attr
, QCweight
))
5983 else if (EQ (attr
, QCslant
))
5988 if (indices
[i
] != 0)
5993 if (!NILP (list
) || i
!= DIM (indices
))
5994 signal_error ("Invalid font sort order", order
);
5995 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5996 if (indices
[i
] == 0)
5997 signal_error ("Invalid font sort order", order
);
5999 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6001 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6002 free_all_realized_faces (Qnil
);
6009 DEFUN ("internal-set-alternative-font-family-alist",
6010 Finternal_set_alternative_font_family_alist
,
6011 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6012 doc
: /* Define alternative font families to try in face font selection.
6013 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6014 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6015 be found. Value is ALIST. */)
6020 Vface_alternative_font_family_alist
= alist
;
6021 free_all_realized_faces (Qnil
);
6026 DEFUN ("internal-set-alternative-font-registry-alist",
6027 Finternal_set_alternative_font_registry_alist
,
6028 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6029 doc
: /* Define alternative font registries to try in face font selection.
6030 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6031 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6032 be found. Value is ALIST. */)
6037 Vface_alternative_font_registry_alist
= alist
;
6038 free_all_realized_faces (Qnil
);
6043 #ifdef HAVE_WINDOW_SYSTEM
6045 /* Value is non-zero if FONT is the name of a scalable font. The
6046 X11R6 XLFD spec says that point size, pixel size, and average width
6047 are zero for scalable fonts. Intlfonts contain at least one
6048 scalable font ("*-muleindian-1") for which this isn't true, so we
6049 just test average width. */
6052 font_scalable_p (font
)
6053 struct font_name
*font
;
6055 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6056 return (*s
== '0' && *(s
+ 1) == '\0')
6058 /* Windows implementation of XLFD is slightly broken for backward
6059 compatibility with previous broken versions, so test for
6060 wildcards as well as 0. */
6067 /* Ignore the difference of font point size less than this value. */
6069 #define FONT_POINT_SIZE_QUANTUM 5
6071 /* Value is non-zero if FONT1 is a better match for font attributes
6072 VALUES than FONT2. VALUES is an array of face attribute values in
6073 font sort order. COMPARE_PT_P zero means don't compare point
6074 sizes. AVGWIDTH, if not zero, is a specified font average width
6078 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6080 struct font_name
*font1
, *font2
;
6081 int compare_pt_p
, avgwidth
;
6085 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6087 int xlfd_idx
= font_sort_order
[i
];
6089 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6093 if (xlfd_idx
== XLFD_POINT_SIZE
)
6095 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6096 / font1
->rescale_ratio
));
6097 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6098 / font2
->rescale_ratio
));
6099 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6104 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6105 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6108 if (delta1
> delta2
)
6110 else if (delta1
< delta2
)
6114 /* The difference may be equal because, e.g., the face
6115 specifies `italic' but we have only `regular' and
6116 `oblique'. Prefer `oblique' in this case. */
6117 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6118 && font1
->numeric
[xlfd_idx
] > values
[i
]
6119 && font2
->numeric
[xlfd_idx
] < values
[i
])
6127 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6128 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6129 if (delta1
> delta2
)
6131 else if (delta1
< delta2
)
6137 /* We prefer a real scalable font; i.e. not what autoscaled. */
6138 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6139 && font1
->numeric
[XLFD_RESY
] > 0);
6140 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6141 && font2
->numeric
[XLFD_RESY
] > 0);
6143 if (auto_scaled_1
!= auto_scaled_2
)
6144 return auto_scaled_2
;
6147 return font1
->registry_priority
< font2
->registry_priority
;
6151 /* Value is non-zero if FONT is an exact match for face attributes in
6152 SPECIFIED. SPECIFIED is an array of face attribute values in font
6153 sort order. AVGWIDTH, if non-zero, is an average width to compare
6157 exact_face_match_p (specified
, font
, avgwidth
)
6159 struct font_name
*font
;
6164 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6165 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6168 return (i
== DIM (font_sort_order
)
6170 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6174 /* Value is the name of a scaled font, generated from scalable font
6175 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6176 Value is allocated from heap. */
6179 build_scalable_font_name (f
, font
, specified_pt
)
6181 struct font_name
*font
;
6184 char pixel_size
[20];
6186 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6189 /* If scalable font is for a specific resolution, compute
6190 the point size we must specify from the resolution of
6191 the display and the specified resolution of the font. */
6192 if (font
->numeric
[XLFD_RESY
] != 0)
6194 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6195 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
6200 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
6202 /* We may need a font of the different size. */
6203 pixel_value
*= font
->rescale_ratio
;
6205 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6206 font of the specified PIXEL_SIZE. */
6208 { /* Set point size of the font. */
6209 char point_size
[20];
6210 sprintf (point_size
, "%d", (int) pt
);
6211 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6212 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6216 /* Set pixel size. */
6217 sprintf (pixel_size
, "%d", pixel_value
);
6218 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6219 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6221 /* If font doesn't specify its resolution, use the
6222 resolution of the display. */
6223 if (font
->numeric
[XLFD_RESY
] == 0)
6226 sprintf (buffer
, "%d", (int) resy
);
6227 font
->fields
[XLFD_RESY
] = buffer
;
6228 font
->numeric
[XLFD_RESY
] = resy
;
6231 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6234 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6235 sprintf (buffer
, "%d", resx
);
6236 font
->fields
[XLFD_RESX
] = buffer
;
6237 font
->numeric
[XLFD_RESX
] = resx
;
6240 return build_font_name (font
);
6244 /* Value is non-zero if we are allowed to use scalable font FONT. We
6245 can't run a Lisp function here since this function may be called
6246 with input blocked. */
6249 may_use_scalable_font_p (font
)
6252 if (EQ (Vscalable_fonts_allowed
, Qt
))
6254 else if (CONSP (Vscalable_fonts_allowed
))
6256 Lisp_Object tail
, regexp
;
6258 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6260 regexp
= XCAR (tail
);
6261 if (STRINGP (regexp
)
6262 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6272 /* Return the name of the best matching font for face attributes ATTRS
6273 in the array of font_name structures FONTS which contains NFONTS
6274 elements. WIDTH_RATIO is a factor with which to multiply average
6275 widths if ATTRS specifies such a width.
6277 Value is a font name which is allocated from the heap. FONTS is
6278 freed by this function.
6280 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6281 indicate whether the resulting font should be drawn using overstrike
6282 to simulate bold-face. */
6285 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6288 struct font_name
*fonts
;
6291 int *needs_overstrike
;
6294 struct font_name
*best
;
6297 int exact_p
, avgwidth
;
6302 /* Make specified font attributes available in `specified',
6303 indexed by sort order. */
6304 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6306 int xlfd_idx
= font_sort_order
[i
];
6308 if (xlfd_idx
== XLFD_SWIDTH
)
6309 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6310 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6311 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6312 else if (xlfd_idx
== XLFD_WEIGHT
)
6313 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6314 else if (xlfd_idx
== XLFD_SLANT
)
6315 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6320 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6322 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6326 if (needs_overstrike
)
6327 *needs_overstrike
= 0;
6329 /* Start with the first non-scalable font in the list. */
6330 for (i
= 0; i
< nfonts
; ++i
)
6331 if (!font_scalable_p (fonts
+ i
))
6334 /* Find the best match among the non-scalable fonts. */
6339 for (i
= 1; i
< nfonts
; ++i
)
6340 if (!font_scalable_p (fonts
+ i
)
6341 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6345 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6353 /* Unless we found an exact match among non-scalable fonts, see if
6354 we can find a better match among scalable fonts. */
6357 /* A scalable font is better if
6359 1. its weight, slant, swidth attributes are better, or.
6361 2. the best non-scalable font doesn't have the required
6362 point size, and the scalable fonts weight, slant, swidth
6365 int non_scalable_has_exact_height_p
;
6367 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6368 non_scalable_has_exact_height_p
= 1;
6370 non_scalable_has_exact_height_p
= 0;
6372 for (i
= 0; i
< nfonts
; ++i
)
6373 if (font_scalable_p (fonts
+ i
))
6376 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6377 || (!non_scalable_has_exact_height_p
6378 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6380 non_scalable_has_exact_height_p
= 1;
6385 if (needs_overstrike
)
6387 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6388 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6390 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6392 /* We want a bold font, but didn't get one; try to use
6393 overstriking instead to simulate bold-face. However,
6394 don't overstrike an already-bold fontn unless the
6395 desired weight grossly exceeds the available weight. */
6396 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6397 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6399 *needs_overstrike
= 1;
6404 if (font_scalable_p (best
))
6405 font_name
= build_scalable_font_name (f
, best
, pt
);
6407 font_name
= build_font_name (best
);
6409 /* Free font_name structures. */
6410 free_font_names (fonts
, nfonts
);
6416 /* Get a list of matching fonts on frame F, considering FAMILY
6417 and alternative font families from Vface_alternative_font_registry_alist.
6419 FAMILY is the font family whose alternatives are considered.
6421 REGISTRY, if a string, specifies a font registry and encoding to
6422 match. A value of nil means include fonts of any registry and
6425 Return in *FONTS a pointer to a vector of font_name structures for
6426 the fonts matched. Value is the number of fonts found. */
6429 try_alternative_families (f
, family
, registry
, fonts
)
6431 Lisp_Object family
, registry
;
6432 struct font_name
**fonts
;
6437 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6440 /* Try alternative font families. */
6441 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6444 for (alter
= XCDR (alter
);
6445 CONSP (alter
) && nfonts
== 0;
6446 alter
= XCDR (alter
))
6448 if (STRINGP (XCAR (alter
)))
6449 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6453 /* Try all scalable fonts before giving up. */
6454 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6456 int count
= SPECPDL_INDEX ();
6457 specbind (Qscalable_fonts_allowed
, Qt
);
6458 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6459 unbind_to (count
, Qnil
);
6466 /* Get a list of matching fonts on frame F.
6468 FAMILY, if a string, specifies a font family derived from the fontset.
6469 It is only used if the face does not specify any family in ATTRS or
6470 if we cannot find any font of the face's family.
6472 REGISTRY, if a string, specifies a font registry and encoding to
6473 match. A value of nil means include fonts of any registry and
6476 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6477 Otherwise, prefer FAMILY.
6479 Return in *FONTS a pointer to a vector of font_name structures for
6480 the fonts matched. Value is the number of fonts found. */
6483 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6486 Lisp_Object family
, registry
;
6487 struct font_name
**fonts
;
6488 int prefer_face_family
;
6491 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6492 Lisp_Object try_family
;
6494 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6496 if (STRINGP (try_family
))
6497 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6500 /* When realizing the default face and a font spec does not matched
6501 exactly, Emacs looks for ones with the same registry as the
6502 default font. On the Mac, this is mac-roman, which does not work
6503 if the family is -etl-fixed, e.g. The following widens the
6504 choices and fixes that problem. */
6505 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
)
6506 && xstricmp (SDATA (registry
), "mac-roman") == 0)
6507 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6510 if (EQ (try_family
, family
))
6511 family
= face_family
;
6513 if (nfonts
== 0 && STRINGP (family
))
6514 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6516 /* Try font family of the default face or "fixed". */
6519 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6521 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6523 family
= build_string ("fixed");
6524 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6527 /* Try any family with the given registry. */
6529 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6535 /* Return the fontset id of the base fontset name or alias name given
6536 by the fontset attribute of ATTRS. Value is -1 if the fontset
6537 attribute of ATTRS doesn't name a fontset. */
6540 face_fontset (attrs
)
6545 name
= attrs
[LFACE_FONT_INDEX
];
6546 if (!STRINGP (name
))
6548 return fs_query_fontset (name
, 0);
6552 /* Choose a name of font to use on frame F to display character C with
6553 Lisp face attributes specified by ATTRS. The font name is
6554 determined by the font-related attributes in ATTRS and the name
6555 pattern for C in FONTSET. Value is the font name which is
6556 allocated from the heap and must be freed by the caller, or NULL if
6557 we can get no information about the font name of C. It is assured
6558 that we always get some information for a single byte
6561 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6562 indicate whether the resulting font should be drawn using overstrike
6563 to simulate bold-face. */
6566 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6570 int *needs_overstrike
;
6572 Lisp_Object pattern
;
6573 char *font_name
= NULL
;
6574 struct font_name
*fonts
;
6575 int nfonts
, width_ratio
;
6577 if (needs_overstrike
)
6578 *needs_overstrike
= 0;
6580 /* Get (foundry and) family name and registry (and encoding) name of
6582 pattern
= fontset_font_pattern (f
, fontset
, c
);
6585 xassert (!SINGLE_BYTE_CHAR_P (c
));
6589 /* If what we got is a name pattern, return it. */
6590 if (STRINGP (pattern
))
6591 return xstrdup (SDATA (pattern
));
6593 /* Get a list of fonts matching that pattern and choose the
6594 best match for the specified face attributes from it. */
6595 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6596 (SINGLE_BYTE_CHAR_P (c
)
6597 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6598 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6600 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6601 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6606 #endif /* HAVE_WINDOW_SYSTEM */
6610 /***********************************************************************
6612 ***********************************************************************/
6614 /* Realize basic faces on frame F. Value is zero if frame parameters
6615 of F don't contain enough information needed to realize the default
6619 realize_basic_faces (f
)
6623 int count
= SPECPDL_INDEX ();
6625 /* Block input here so that we won't be surprised by an X expose
6626 event, for instance, without having the faces set up. */
6628 specbind (Qscalable_fonts_allowed
, Qt
);
6630 if (realize_default_face (f
))
6632 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6633 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6634 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6635 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6636 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6637 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6638 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6639 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6640 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6641 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6643 /* Reflect changes in the `menu' face in menu bars. */
6644 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6646 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6647 #ifdef USE_X_TOOLKIT
6648 if (FRAME_WINDOW_P (f
))
6649 x_update_menu_appearance (f
);
6656 unbind_to (count
, Qnil
);
6662 /* Realize the default face on frame F. If the face is not fully
6663 specified, make it fully-specified. Attributes of the default face
6664 that are not explicitly specified are taken from frame parameters. */
6667 realize_default_face (f
)
6670 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6672 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6673 Lisp_Object frame_font
;
6676 /* If the `default' face is not yet known, create it. */
6677 lface
= lface_from_face_name (f
, Qdefault
, 0);
6681 XSETFRAME (frame
, f
);
6682 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6686 #ifdef HAVE_WINDOW_SYSTEM
6687 if (FRAME_WINDOW_P (f
))
6689 /* Set frame_font to the value of the `font' frame parameter. */
6690 frame_font
= Fassq (Qfont
, f
->param_alist
);
6691 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6692 frame_font
= XCDR (frame_font
);
6693 set_lface_from_font_name (f
, lface
, frame_font
,
6694 f
->default_face_done_p
, 1);
6695 f
->default_face_done_p
= 1;
6697 #endif /* HAVE_WINDOW_SYSTEM */
6699 if (!FRAME_WINDOW_P (f
))
6701 LFACE_FAMILY (lface
) = build_string ("default");
6702 LFACE_SWIDTH (lface
) = Qnormal
;
6703 LFACE_HEIGHT (lface
) = make_number (1);
6704 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6705 LFACE_WEIGHT (lface
) = Qnormal
;
6706 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6707 LFACE_SLANT (lface
) = Qnormal
;
6708 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6711 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6712 LFACE_UNDERLINE (lface
) = Qnil
;
6714 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6715 LFACE_OVERLINE (lface
) = Qnil
;
6717 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6718 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6720 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6721 LFACE_BOX (lface
) = Qnil
;
6723 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6724 LFACE_INVERSE (lface
) = Qnil
;
6726 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6728 /* This function is called so early that colors are not yet
6729 set in the frame parameter list. */
6730 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6732 if (CONSP (color
) && STRINGP (XCDR (color
)))
6733 LFACE_FOREGROUND (lface
) = XCDR (color
);
6734 else if (FRAME_WINDOW_P (f
))
6736 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6737 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6742 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6744 /* This function is called so early that colors are not yet
6745 set in the frame parameter list. */
6746 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6747 if (CONSP (color
) && STRINGP (XCDR (color
)))
6748 LFACE_BACKGROUND (lface
) = XCDR (color
);
6749 else if (FRAME_WINDOW_P (f
))
6751 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6752 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6757 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6758 LFACE_STIPPLE (lface
) = Qnil
;
6760 /* Realize the face; it must be fully-specified now. */
6761 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6762 check_lface (lface
);
6763 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6764 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6769 /* Realize basic faces other than the default face in face cache C.
6770 SYMBOL is the face name, ID is the face id the realized face must
6771 have. The default face must have been realized already. */
6774 realize_named_face (f
, symbol
, id
)
6779 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6780 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6781 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6782 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6783 struct face
*new_face
;
6785 /* The default face must exist and be fully specified. */
6786 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6787 check_lface_attrs (attrs
);
6788 xassert (lface_fully_specified_p (attrs
));
6790 /* If SYMBOL isn't know as a face, create it. */
6794 XSETFRAME (frame
, f
);
6795 lface
= Finternal_make_lisp_face (symbol
, frame
);
6798 /* Merge SYMBOL's face with the default face. */
6799 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6800 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
6802 /* Realize the face. */
6803 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6807 /* Realize the fully-specified face with attributes ATTRS in face
6808 cache CACHE for character C. If C is a multibyte character,
6809 BASE_FACE is a face that has the same attributes. Otherwise,
6810 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6811 ID of face to remove before caching the new face. Value is a
6812 pointer to the newly created realized face. */
6814 static struct face
*
6815 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6816 struct face_cache
*cache
;
6819 struct face
*base_face
;
6824 /* LFACE must be fully specified. */
6825 xassert (cache
!= NULL
);
6826 check_lface_attrs (attrs
);
6828 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
6830 /* Remove the former face. */
6831 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
6832 uncache_face (cache
, former_face
);
6833 free_realized_face (cache
->f
, former_face
);
6836 if (FRAME_WINDOW_P (cache
->f
))
6837 face
= realize_x_face (cache
, attrs
, c
, base_face
);
6838 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
6839 face
= realize_tty_face (cache
, attrs
, c
);
6840 else if (FRAME_INITIAL_P (cache
->f
))
6842 /* Create a dummy face. */
6843 face
= make_realized_face (attrs
);
6848 /* Insert the new face. */
6849 cache_face (cache
, face
, lface_hash (attrs
));
6850 #ifdef HAVE_WINDOW_SYSTEM
6851 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
6852 load_face_font (cache
->f
, face
, c
);
6853 #endif /* HAVE_WINDOW_SYSTEM */
6858 /* Realize the fully-specified face with attributes ATTRS in face
6859 cache CACHE for character C. Do it for X frame CACHE->f. If C is
6860 a multibyte character, BASE_FACE is a face that has the same
6861 attributes. Otherwise, BASE_FACE is ignored. If the new face
6862 doesn't share font with the default face, a fontname is allocated
6863 from the heap and set in `font_name' of the new face, but it is not
6864 yet loaded here. Value is a pointer to the newly created realized
6867 static struct face
*
6868 realize_x_face (cache
, attrs
, c
, base_face
)
6869 struct face_cache
*cache
;
6872 struct face
*base_face
;
6874 #ifdef HAVE_WINDOW_SYSTEM
6875 struct face
*face
, *default_face
;
6877 Lisp_Object stipple
, overline
, strike_through
, box
;
6879 xassert (FRAME_WINDOW_P (cache
->f
));
6880 xassert (SINGLE_BYTE_CHAR_P (c
)
6883 /* Allocate a new realized face. */
6884 face
= make_realized_face (attrs
);
6888 /* If C is a multibyte character, we share all face attirbutes with
6889 BASE_FACE including the realized fontset. But, we must load a
6891 if (!SINGLE_BYTE_CHAR_P (c
))
6893 bcopy (base_face
, face
, sizeof *face
);
6896 /* Don't try to free the colors copied bitwise from BASE_FACE. */
6897 face
->colors_copied_bitwise_p
= 1;
6899 /* to force realize_face to load font */
6904 /* Now we are realizing a face for ASCII (and unibyte) characters. */
6906 /* Determine the font to use. Most of the time, the font will be
6907 the same as the font of the default face, so try that first. */
6908 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6910 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
6911 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
6913 face
->font
= default_face
->font
;
6914 face
->fontset
= default_face
->fontset
;
6915 face
->font_info_id
= default_face
->font_info_id
;
6916 face
->font_name
= default_face
->font_name
;
6917 face
->ascii_face
= face
;
6919 /* But, as we can't share the fontset, make a new realized
6920 fontset that has the same base fontset as of the default
6923 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
6927 /* If the face attribute ATTRS specifies a fontset, use it as
6928 the base of a new realized fontset. Otherwise, use the same
6929 base fontset as of the default face. The base determines
6930 registry and encoding of a font. It may also determine
6931 foundry and family. The other fields of font name pattern
6932 are constructed from ATTRS. */
6933 int fontset
= face_fontset (attrs
);
6935 if ((fontset
== -1) && default_face
)
6936 fontset
= default_face
->fontset
;
6937 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
6938 face
->font
= NULL
; /* to force realize_face to load font */
6941 /* Load colors, and set remaining attributes. */
6943 load_face_colors (f
, face
, attrs
);
6946 box
= attrs
[LFACE_BOX_INDEX
];
6949 /* A simple box of line width 1 drawn in color given by
6951 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
6953 face
->box
= FACE_SIMPLE_BOX
;
6954 face
->box_line_width
= 1;
6956 else if (INTEGERP (box
))
6958 /* Simple box of specified line width in foreground color of the
6960 xassert (XINT (box
) != 0);
6961 face
->box
= FACE_SIMPLE_BOX
;
6962 face
->box_line_width
= XINT (box
);
6963 face
->box_color
= face
->foreground
;
6964 face
->box_color_defaulted_p
= 1;
6966 else if (CONSP (box
))
6968 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
6969 being one of `raised' or `sunken'. */
6970 face
->box
= FACE_SIMPLE_BOX
;
6971 face
->box_color
= face
->foreground
;
6972 face
->box_color_defaulted_p
= 1;
6973 face
->box_line_width
= 1;
6977 Lisp_Object keyword
, value
;
6979 keyword
= XCAR (box
);
6987 if (EQ (keyword
, QCline_width
))
6989 if (INTEGERP (value
) && XINT (value
) != 0)
6990 face
->box_line_width
= XINT (value
);
6992 else if (EQ (keyword
, QCcolor
))
6994 if (STRINGP (value
))
6996 face
->box_color
= load_color (f
, face
, value
,
6998 face
->use_box_color_for_shadows_p
= 1;
7001 else if (EQ (keyword
, QCstyle
))
7003 if (EQ (value
, Qreleased_button
))
7004 face
->box
= FACE_RAISED_BOX
;
7005 else if (EQ (value
, Qpressed_button
))
7006 face
->box
= FACE_SUNKEN_BOX
;
7011 /* Text underline, overline, strike-through. */
7013 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7015 /* Use default color (same as foreground color). */
7016 face
->underline_p
= 1;
7017 face
->underline_defaulted_p
= 1;
7018 face
->underline_color
= 0;
7020 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7022 /* Use specified color. */
7023 face
->underline_p
= 1;
7024 face
->underline_defaulted_p
= 0;
7025 face
->underline_color
7026 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7027 LFACE_UNDERLINE_INDEX
);
7029 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7031 face
->underline_p
= 0;
7032 face
->underline_defaulted_p
= 0;
7033 face
->underline_color
= 0;
7036 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7037 if (STRINGP (overline
))
7039 face
->overline_color
7040 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7041 LFACE_OVERLINE_INDEX
);
7042 face
->overline_p
= 1;
7044 else if (EQ (overline
, Qt
))
7046 face
->overline_color
= face
->foreground
;
7047 face
->overline_color_defaulted_p
= 1;
7048 face
->overline_p
= 1;
7051 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7052 if (STRINGP (strike_through
))
7054 face
->strike_through_color
7055 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7056 LFACE_STRIKE_THROUGH_INDEX
);
7057 face
->strike_through_p
= 1;
7059 else if (EQ (strike_through
, Qt
))
7061 face
->strike_through_color
= face
->foreground
;
7062 face
->strike_through_color_defaulted_p
= 1;
7063 face
->strike_through_p
= 1;
7066 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7067 if (!NILP (stipple
))
7068 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7070 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7072 #endif /* HAVE_WINDOW_SYSTEM */
7076 /* Map a specified color of face FACE on frame F to a tty color index.
7077 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7078 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7079 default foreground/background colors. */
7082 map_tty_color (f
, face
, idx
, defaulted
)
7085 enum lface_attribute_index idx
;
7088 Lisp_Object frame
, color
, def
;
7089 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7090 unsigned long default_pixel
, default_other_pixel
, pixel
;
7092 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7096 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7097 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7101 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7102 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7105 XSETFRAME (frame
, f
);
7106 color
= face
->lface
[idx
];
7110 && CONSP (Vtty_defined_color_alist
)
7111 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7114 /* Associations in tty-defined-color-alist are of the form
7115 (NAME INDEX R G B). We need the INDEX part. */
7116 pixel
= XINT (XCAR (XCDR (def
)));
7119 if (pixel
== default_pixel
&& STRINGP (color
))
7121 pixel
= load_color (f
, face
, color
, idx
);
7123 #if defined (MSDOS) || defined (WINDOWSNT)
7124 /* If the foreground of the default face is the default color,
7125 use the foreground color defined by the frame. */
7127 if (FRAME_MSDOS_P (f
))
7130 if (pixel
== default_pixel
7131 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7134 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7136 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7137 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7140 else if (pixel
== default_other_pixel
)
7143 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7145 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7146 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7152 #endif /* MSDOS or WINDOWSNT */
7156 face
->foreground
= pixel
;
7158 face
->background
= pixel
;
7162 /* Realize the fully-specified face with attributes ATTRS in face
7163 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7164 pointer to the newly created realized face. */
7166 static struct face
*
7167 realize_tty_face (cache
, attrs
, c
)
7168 struct face_cache
*cache
;
7174 int face_colors_defaulted
= 0;
7175 struct frame
*f
= cache
->f
;
7177 /* Frame must be a termcap frame. */
7178 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7180 /* Allocate a new realized face. */
7181 face
= make_realized_face (attrs
);
7182 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7184 /* Map face attributes to TTY appearances. We map slant to
7185 dimmed text because we want italic text to appear differently
7186 and because dimmed text is probably used infrequently. */
7187 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7188 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7190 if (weight
> XLFD_WEIGHT_MEDIUM
)
7191 face
->tty_bold_p
= 1;
7192 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7193 face
->tty_dim_p
= 1;
7194 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7195 face
->tty_underline_p
= 1;
7196 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7197 face
->tty_reverse_p
= 1;
7199 /* Map color names to color indices. */
7200 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7201 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7203 /* Swap colors if face is inverse-video. If the colors are taken
7204 from the frame colors, they are already inverted, since the
7205 frame-creation function calls x-handle-reverse-video. */
7206 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7208 unsigned long tem
= face
->foreground
;
7209 face
->foreground
= face
->background
;
7210 face
->background
= tem
;
7213 if (tty_suppress_bold_inverse_default_colors_p
7215 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7216 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7217 face
->tty_bold_p
= 0;
7223 DEFUN ("tty-suppress-bold-inverse-default-colors",
7224 Ftty_suppress_bold_inverse_default_colors
,
7225 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7226 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7227 SUPPRESS non-nil means suppress it.
7228 This affects bold faces on TTYs whose foreground is the default background
7229 color of the display and whose background is the default foreground color.
7230 For such faces, the bold face attribute is ignored if this variable
7233 Lisp_Object suppress
;
7235 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7236 ++face_change_count
;
7242 /***********************************************************************
7244 ***********************************************************************/
7246 /* Return the ID of the face to use to display character CH with face
7247 property PROP on frame F in current_buffer. */
7250 compute_char_face (f
, ch
, prop
)
7257 if (NILP (current_buffer
->enable_multibyte_characters
))
7262 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7263 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7267 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7268 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7269 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7270 merge_face_vector_with_property (f
, attrs
, prop
);
7271 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7277 /* Return the face ID associated with buffer position POS for
7278 displaying ASCII characters. Return in *ENDPTR the position at
7279 which a different face is needed, as far as text properties and
7280 overlays are concerned. W is a window displaying current_buffer.
7282 REGION_BEG, REGION_END delimit the region, so it can be
7285 LIMIT is a position not to scan beyond. That is to limit the time
7286 this function can take.
7288 If MOUSE is non-zero, use the character's mouse-face, not its face.
7290 The face returned is suitable for displaying ASCII characters. */
7293 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7294 endptr
, limit
, mouse
)
7297 int region_beg
, region_end
;
7302 struct frame
*f
= XFRAME (w
->frame
);
7303 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7304 Lisp_Object prop
, position
;
7306 Lisp_Object
*overlay_vec
;
7309 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7310 Lisp_Object limit1
, end
;
7311 struct face
*default_face
;
7313 /* W must display the current buffer. We could write this function
7314 to use the frame and buffer of W, but right now it doesn't. */
7315 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7317 XSETFRAME (frame
, f
);
7318 XSETFASTINT (position
, pos
);
7321 if (pos
< region_beg
&& region_beg
< endpos
)
7322 endpos
= region_beg
;
7324 /* Get the `face' or `mouse_face' text property at POS, and
7325 determine the next position at which the property changes. */
7326 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7327 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7328 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7330 endpos
= XINT (end
);
7332 /* Look at properties from overlays. */
7337 /* First try with room for 40 overlays. */
7339 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
7340 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
7341 &next_overlay
, NULL
, 0);
7343 /* If there are more than 40, make enough space for all, and try
7345 if (noverlays
> len
)
7348 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
7349 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
7350 &next_overlay
, NULL
, 0);
7353 if (next_overlay
< endpos
)
7354 endpos
= next_overlay
;
7359 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7361 /* Optimize common cases where we can use the default face. */
7364 && !(pos
>= region_beg
&& pos
< region_end
))
7365 return DEFAULT_FACE_ID
;
7367 /* Begin with attributes from the default face. */
7368 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7370 /* Merge in attributes specified via text properties. */
7372 merge_face_vector_with_property (f
, attrs
, prop
);
7374 /* Now merge the overlay data. */
7375 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7376 for (i
= 0; i
< noverlays
; i
++)
7381 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7383 merge_face_vector_with_property (f
, attrs
, prop
);
7385 oend
= OVERLAY_END (overlay_vec
[i
]);
7386 oendpos
= OVERLAY_POSITION (oend
);
7387 if (oendpos
< endpos
)
7391 /* If in the region, merge in the region face. */
7392 if (pos
>= region_beg
&& pos
< region_end
)
7394 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
7395 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
7397 if (region_end
< endpos
)
7398 endpos
= region_end
;
7403 /* Look up a realized face with the given face attributes,
7404 or realize a new one for ASCII characters. */
7405 return lookup_face (f
, attrs
, 0, NULL
);
7409 /* Compute the face at character position POS in Lisp string STRING on
7410 window W, for ASCII characters.
7412 If STRING is an overlay string, it comes from position BUFPOS in
7413 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7414 not an overlay string. W must display the current buffer.
7415 REGION_BEG and REGION_END give the start and end positions of the
7416 region; both are -1 if no region is visible.
7418 BASE_FACE_ID is the id of a face to merge with. For strings coming
7419 from overlays or the `display' property it is the face at BUFPOS.
7421 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7423 Set *ENDPTR to the next position where to check for faces in
7424 STRING; -1 if the face is constant from POS to the end of the
7427 Value is the id of the face to use. The face returned is suitable
7428 for displaying ASCII characters. */
7431 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7432 region_end
, endptr
, base_face_id
, mouse_p
)
7436 int region_beg
, region_end
;
7438 enum face_id base_face_id
;
7441 Lisp_Object prop
, position
, end
, limit
;
7442 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7443 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7444 struct face
*base_face
;
7445 int multibyte_p
= STRING_MULTIBYTE (string
);
7446 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7448 /* Get the value of the face property at the current position within
7449 STRING. Value is nil if there is no face property. */
7450 XSETFASTINT (position
, pos
);
7451 prop
= Fget_text_property (position
, prop_name
, string
);
7453 /* Get the next position at which to check for faces. Value of end
7454 is nil if face is constant all the way to the end of the string.
7455 Otherwise it is a string position where to check faces next.
7456 Limit is the maximum position up to which to check for property
7457 changes in Fnext_single_property_change. Strings are usually
7458 short, so set the limit to the end of the string. */
7459 XSETFASTINT (limit
, SCHARS (string
));
7460 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7462 *endptr
= XFASTINT (end
);
7466 base_face
= FACE_FROM_ID (f
, base_face_id
);
7467 xassert (base_face
);
7469 /* Optimize the default case that there is no face property and we
7470 are not in the region. */
7472 && (base_face_id
!= DEFAULT_FACE_ID
7473 /* BUFPOS <= 0 means STRING is not an overlay string, so
7474 that the region doesn't have to be taken into account. */
7476 || bufpos
< region_beg
7477 || bufpos
>= region_end
)
7479 /* We can't realize faces for different charsets differently
7480 if we don't have fonts, so we can stop here if not working
7481 on a window-system frame. */
7482 || !FRAME_WINDOW_P (f
)
7483 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7484 return base_face
->id
;
7486 /* Begin with attributes from the base face. */
7487 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7489 /* Merge in attributes specified via text properties. */
7491 merge_face_vector_with_property (f
, attrs
, prop
);
7493 /* If in the region, merge in the region face. */
7495 && bufpos
>= region_beg
7496 && bufpos
< region_end
)
7498 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
7499 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
7502 /* Look up a realized face with the given face attributes,
7503 or realize a new one for ASCII characters. */
7504 return lookup_face (f
, attrs
, 0, NULL
);
7509 /***********************************************************************
7511 ***********************************************************************/
7515 /* Print the contents of the realized face FACE to stderr. */
7518 dump_realized_face (face
)
7521 fprintf (stderr
, "ID: %d\n", face
->id
);
7522 #ifdef HAVE_X_WINDOWS
7523 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7525 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7527 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7528 fprintf (stderr
, "background: 0x%lx (%s)\n",
7530 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7531 fprintf (stderr
, "font_name: %s (%s)\n",
7533 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7534 #ifdef HAVE_X_WINDOWS
7535 fprintf (stderr
, "font = %p\n", face
->font
);
7537 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7538 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7539 fprintf (stderr
, "underline: %d (%s)\n",
7541 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7542 fprintf (stderr
, "hash: %d\n", face
->hash
);
7543 fprintf (stderr
, "charset: %d\n", face
->charset
);
7547 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7555 fprintf (stderr
, "font selection order: ");
7556 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7557 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7558 fprintf (stderr
, "\n");
7560 fprintf (stderr
, "alternative fonts: ");
7561 debug_print (Vface_alternative_font_family_alist
);
7562 fprintf (stderr
, "\n");
7564 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7565 Fdump_face (make_number (i
));
7571 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7573 error ("Not a valid face");
7574 dump_realized_face (face
);
7581 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7582 0, 0, 0, doc
: /* */)
7585 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7586 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7587 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7591 #endif /* GLYPH_DEBUG != 0 */
7595 /***********************************************************************
7597 ***********************************************************************/
7602 Qface
= intern ("face");
7604 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7605 staticpro (&Qbitmap_spec_p
);
7606 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7607 staticpro (&Qframe_update_face_colors
);
7609 /* Lisp face attribute keywords. */
7610 QCfamily
= intern (":family");
7611 staticpro (&QCfamily
);
7612 QCheight
= intern (":height");
7613 staticpro (&QCheight
);
7614 QCweight
= intern (":weight");
7615 staticpro (&QCweight
);
7616 QCslant
= intern (":slant");
7617 staticpro (&QCslant
);
7618 QCunderline
= intern (":underline");
7619 staticpro (&QCunderline
);
7620 QCinverse_video
= intern (":inverse-video");
7621 staticpro (&QCinverse_video
);
7622 QCreverse_video
= intern (":reverse-video");
7623 staticpro (&QCreverse_video
);
7624 QCforeground
= intern (":foreground");
7625 staticpro (&QCforeground
);
7626 QCbackground
= intern (":background");
7627 staticpro (&QCbackground
);
7628 QCstipple
= intern (":stipple");;
7629 staticpro (&QCstipple
);
7630 QCwidth
= intern (":width");
7631 staticpro (&QCwidth
);
7632 QCfont
= intern (":font");
7633 staticpro (&QCfont
);
7634 QCbold
= intern (":bold");
7635 staticpro (&QCbold
);
7636 QCitalic
= intern (":italic");
7637 staticpro (&QCitalic
);
7638 QCoverline
= intern (":overline");
7639 staticpro (&QCoverline
);
7640 QCstrike_through
= intern (":strike-through");
7641 staticpro (&QCstrike_through
);
7642 QCbox
= intern (":box");
7644 QCinherit
= intern (":inherit");
7645 staticpro (&QCinherit
);
7647 /* Symbols used for Lisp face attribute values. */
7648 QCcolor
= intern (":color");
7649 staticpro (&QCcolor
);
7650 QCline_width
= intern (":line-width");
7651 staticpro (&QCline_width
);
7652 QCstyle
= intern (":style");
7653 staticpro (&QCstyle
);
7654 Qreleased_button
= intern ("released-button");
7655 staticpro (&Qreleased_button
);
7656 Qpressed_button
= intern ("pressed-button");
7657 staticpro (&Qpressed_button
);
7658 Qnormal
= intern ("normal");
7659 staticpro (&Qnormal
);
7660 Qultra_light
= intern ("ultra-light");
7661 staticpro (&Qultra_light
);
7662 Qextra_light
= intern ("extra-light");
7663 staticpro (&Qextra_light
);
7664 Qlight
= intern ("light");
7665 staticpro (&Qlight
);
7666 Qsemi_light
= intern ("semi-light");
7667 staticpro (&Qsemi_light
);
7668 Qsemi_bold
= intern ("semi-bold");
7669 staticpro (&Qsemi_bold
);
7670 Qbold
= intern ("bold");
7672 Qextra_bold
= intern ("extra-bold");
7673 staticpro (&Qextra_bold
);
7674 Qultra_bold
= intern ("ultra-bold");
7675 staticpro (&Qultra_bold
);
7676 Qoblique
= intern ("oblique");
7677 staticpro (&Qoblique
);
7678 Qitalic
= intern ("italic");
7679 staticpro (&Qitalic
);
7680 Qreverse_oblique
= intern ("reverse-oblique");
7681 staticpro (&Qreverse_oblique
);
7682 Qreverse_italic
= intern ("reverse-italic");
7683 staticpro (&Qreverse_italic
);
7684 Qultra_condensed
= intern ("ultra-condensed");
7685 staticpro (&Qultra_condensed
);
7686 Qextra_condensed
= intern ("extra-condensed");
7687 staticpro (&Qextra_condensed
);
7688 Qcondensed
= intern ("condensed");
7689 staticpro (&Qcondensed
);
7690 Qsemi_condensed
= intern ("semi-condensed");
7691 staticpro (&Qsemi_condensed
);
7692 Qsemi_expanded
= intern ("semi-expanded");
7693 staticpro (&Qsemi_expanded
);
7694 Qexpanded
= intern ("expanded");
7695 staticpro (&Qexpanded
);
7696 Qextra_expanded
= intern ("extra-expanded");
7697 staticpro (&Qextra_expanded
);
7698 Qultra_expanded
= intern ("ultra-expanded");
7699 staticpro (&Qultra_expanded
);
7700 Qbackground_color
= intern ("background-color");
7701 staticpro (&Qbackground_color
);
7702 Qforeground_color
= intern ("foreground-color");
7703 staticpro (&Qforeground_color
);
7704 Qunspecified
= intern ("unspecified");
7705 staticpro (&Qunspecified
);
7707 Qface_alias
= intern ("face-alias");
7708 staticpro (&Qface_alias
);
7709 Qdefault
= intern ("default");
7710 staticpro (&Qdefault
);
7711 Qtool_bar
= intern ("tool-bar");
7712 staticpro (&Qtool_bar
);
7713 Qregion
= intern ("region");
7714 staticpro (&Qregion
);
7715 Qfringe
= intern ("fringe");
7716 staticpro (&Qfringe
);
7717 Qheader_line
= intern ("header-line");
7718 staticpro (&Qheader_line
);
7719 Qscroll_bar
= intern ("scroll-bar");
7720 staticpro (&Qscroll_bar
);
7721 Qmenu
= intern ("menu");
7723 Qcursor
= intern ("cursor");
7724 staticpro (&Qcursor
);
7725 Qborder
= intern ("border");
7726 staticpro (&Qborder
);
7727 Qmouse
= intern ("mouse");
7728 staticpro (&Qmouse
);
7729 Qmode_line_inactive
= intern ("mode-line-inactive");
7730 staticpro (&Qmode_line_inactive
);
7731 Qtty_color_desc
= intern ("tty-color-desc");
7732 staticpro (&Qtty_color_desc
);
7733 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7734 staticpro (&Qtty_color_standard_values
);
7735 Qtty_color_by_index
= intern ("tty-color-by-index");
7736 staticpro (&Qtty_color_by_index
);
7737 Qtty_color_alist
= intern ("tty-color-alist");
7738 staticpro (&Qtty_color_alist
);
7739 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7740 staticpro (&Qscalable_fonts_allowed
);
7742 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7743 staticpro (&Vparam_value_alist
);
7744 Vface_alternative_font_family_alist
= Qnil
;
7745 staticpro (&Vface_alternative_font_family_alist
);
7746 Vface_alternative_font_registry_alist
= Qnil
;
7747 staticpro (&Vface_alternative_font_registry_alist
);
7749 defsubr (&Sinternal_make_lisp_face
);
7750 defsubr (&Sinternal_lisp_face_p
);
7751 defsubr (&Sinternal_set_lisp_face_attribute
);
7752 #ifdef HAVE_WINDOW_SYSTEM
7753 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7755 defsubr (&Scolor_gray_p
);
7756 defsubr (&Scolor_supported_p
);
7757 defsubr (&Sface_attribute_relative_p
);
7758 defsubr (&Smerge_face_attribute
);
7759 defsubr (&Sinternal_get_lisp_face_attribute
);
7760 defsubr (&Sinternal_lisp_face_attribute_values
);
7761 defsubr (&Sinternal_lisp_face_equal_p
);
7762 defsubr (&Sinternal_lisp_face_empty_p
);
7763 defsubr (&Sinternal_copy_lisp_face
);
7764 defsubr (&Sinternal_merge_in_global_face
);
7765 defsubr (&Sface_font
);
7766 defsubr (&Sframe_face_alist
);
7767 defsubr (&Stty_supports_face_attributes_p
);
7768 defsubr (&Scolor_distance
);
7769 defsubr (&Sinternal_set_font_selection_order
);
7770 defsubr (&Sinternal_set_alternative_font_family_alist
);
7771 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7772 defsubr (&Sface_attributes_as_vector
);
7774 defsubr (&Sdump_face
);
7775 defsubr (&Sshow_face_resources
);
7776 #endif /* GLYPH_DEBUG */
7777 defsubr (&Sclear_face_cache
);
7778 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7780 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7781 defsubr (&Sdump_colors
);
7784 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7785 doc
: /* *Limit for font matching.
7786 If an integer > 0, font matching functions won't load more than
7787 that number of fonts when searching for a matching font. */);
7788 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7790 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7791 doc
: /* List of global face definitions (for internal use only.) */);
7792 Vface_new_frame_defaults
= Qnil
;
7794 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7795 doc
: /* *Default stipple pattern used on monochrome displays.
7796 This stipple pattern is used on monochrome displays
7797 instead of shades of gray for a face background color.
7798 See `set-face-stipple' for possible values for this variable. */);
7799 Vface_default_stipple
= build_string ("gray3");
7801 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7802 doc
: /* An alist of defined terminal colors and their RGB values. */);
7803 Vtty_defined_color_alist
= Qnil
;
7805 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7806 doc
: /* Allowed scalable fonts.
7807 A value of nil means don't allow any scalable fonts.
7808 A value of t means allow any scalable font.
7809 Otherwise, value must be a list of regular expressions. A font may be
7810 scaled if its name matches a regular expression in the list.
7811 Note that if value is nil, a scalable font might still be used, if no
7812 other font of the appropriate family and registry is available. */);
7813 Vscalable_fonts_allowed
= Qnil
;
7815 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7816 doc
: /* List of ignored fonts.
7817 Each element is a regular expression that matches names of fonts to
7819 Vface_ignored_fonts
= Qnil
;
7821 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7822 doc
: /* Alist of fonts vs the rescaling factors.
7823 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7824 FONT-NAME-PATTERN is a regular expression matching a font name, and
7825 RESCALE-RATIO is a floating point number to specify how much larger
7826 \(or smaller) font we should use. For instance, if a face requests
7827 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7828 Vface_font_rescale_alist
= Qnil
;
7830 #ifdef HAVE_WINDOW_SYSTEM
7831 defsubr (&Sbitmap_spec_p
);
7832 defsubr (&Sx_list_fonts
);
7833 defsubr (&Sinternal_face_x_get_resource
);
7834 defsubr (&Sx_family_fonts
);
7835 defsubr (&Sx_font_family_list
);
7836 #endif /* HAVE_WINDOW_SYSTEM */
7839 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7840 (do not change this comment) */