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. */
466 struct named_merge_point
;
468 static void map_tty_color
P_ ((struct frame
*, struct face
*,
469 enum lface_attribute_index
, int *));
470 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
471 static int may_use_scalable_font_p
P_ ((const char *));
472 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
473 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
475 static int x_face_list_fonts
P_ ((struct frame
*, char *,
476 struct font_name
**, int, int));
477 static int font_scalable_p
P_ ((struct font_name
*));
478 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
479 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
480 static unsigned char *xstrlwr
P_ ((unsigned char *));
481 static void signal_error
P_ ((char *, Lisp_Object
));
482 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
483 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
484 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
485 static void free_face_colors
P_ ((struct frame
*, struct face
*));
486 static int face_color_gray_p
P_ ((struct frame
*, char *));
487 static char *build_font_name
P_ ((struct font_name
*));
488 static void free_font_names
P_ ((struct font_name
*, int));
489 static int sorted_font_list
P_ ((struct frame
*, char *,
490 int (*cmpfn
) P_ ((const void *, const void *)),
491 struct font_name
**));
492 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
493 Lisp_Object
, struct font_name
**));
494 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
495 Lisp_Object
, struct font_name
**));
496 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
497 Lisp_Object
, Lisp_Object
, struct font_name
**,
499 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
500 Lisp_Object
, struct font_name
**));
501 static int cmp_font_names
P_ ((const void *, const void *));
502 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
503 struct face
*, int));
504 static struct face
*realize_x_face
P_ ((struct face_cache
*,
505 Lisp_Object
*, int, struct face
*));
506 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
507 Lisp_Object
*, int));
508 static int realize_basic_faces
P_ ((struct frame
*));
509 static int realize_default_face
P_ ((struct frame
*));
510 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
511 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
512 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
513 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
514 static unsigned lface_hash
P_ ((Lisp_Object
*));
515 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
516 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
517 static void free_realized_face
P_ ((struct frame
*, struct face
*));
518 static void clear_face_gcs
P_ ((struct face_cache
*));
519 static void free_face_cache
P_ ((struct face_cache
*));
520 static int face_numeric_weight
P_ ((Lisp_Object
));
521 static int face_numeric_slant
P_ ((Lisp_Object
));
522 static int face_numeric_swidth
P_ ((Lisp_Object
));
523 static int face_fontset
P_ ((Lisp_Object
*));
524 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
525 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
526 struct named_merge_point
*));
527 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
528 int, struct named_merge_point
*));
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 Otherwise, this function tells whether it can be used as a foreground.
1551 If FRAME is nil or omitted, use the selected frame.
1552 COLOR must be a valid color name. */)
1553 (color
, frame
, background_p
)
1554 Lisp_Object frame
, color
, background_p
;
1558 CHECK_STRING (color
);
1560 frame
= selected_frame
;
1562 CHECK_FRAME (frame
);
1564 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1570 /* Load color with name NAME for use by face FACE on frame F.
1571 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1572 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1573 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1574 pixel color. If color cannot be loaded, display a message, and
1575 return the foreground, background or underline color of F, but
1576 record that fact in flags of the face so that we don't try to free
1580 load_color (f
, face
, name
, target_index
)
1584 enum lface_attribute_index target_index
;
1588 xassert (STRINGP (name
));
1589 xassert (target_index
== LFACE_FOREGROUND_INDEX
1590 || target_index
== LFACE_BACKGROUND_INDEX
1591 || target_index
== LFACE_UNDERLINE_INDEX
1592 || target_index
== LFACE_OVERLINE_INDEX
1593 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1594 || target_index
== LFACE_BOX_INDEX
);
1596 /* if the color map is full, defined_color will return a best match
1597 to the values in an existing cell. */
1598 if (!defined_color (f
, SDATA (name
), &color
, 1))
1600 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1602 switch (target_index
)
1604 case LFACE_FOREGROUND_INDEX
:
1605 face
->foreground_defaulted_p
= 1;
1606 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1609 case LFACE_BACKGROUND_INDEX
:
1610 face
->background_defaulted_p
= 1;
1611 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1614 case LFACE_UNDERLINE_INDEX
:
1615 face
->underline_defaulted_p
= 1;
1616 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1619 case LFACE_OVERLINE_INDEX
:
1620 face
->overline_color_defaulted_p
= 1;
1621 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1624 case LFACE_STRIKE_THROUGH_INDEX
:
1625 face
->strike_through_color_defaulted_p
= 1;
1626 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1629 case LFACE_BOX_INDEX
:
1630 face
->box_color_defaulted_p
= 1;
1631 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1640 ++ncolors_allocated
;
1647 #ifdef HAVE_WINDOW_SYSTEM
1649 /* Load colors for face FACE which is used on frame F. Colors are
1650 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1651 of ATTRS. If the background color specified is not supported on F,
1652 try to emulate gray colors with a stipple from Vface_default_stipple. */
1655 load_face_colors (f
, face
, attrs
)
1662 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1663 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1665 /* Swap colors if face is inverse-video. */
1666 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1674 /* Check for support for foreground, not for background because
1675 face_color_supported_p is smart enough to know that grays are
1676 "supported" as background because we are supposed to use stipple
1678 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1679 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1681 x_destroy_bitmap (f
, face
->stipple
);
1682 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1683 &face
->pixmap_w
, &face
->pixmap_h
);
1686 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1687 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1691 /* Free color PIXEL on frame F. */
1694 unload_color (f
, pixel
)
1696 unsigned long pixel
;
1698 #ifdef HAVE_X_WINDOWS
1702 x_free_colors (f
, &pixel
, 1);
1709 /* Free colors allocated for FACE. */
1712 free_face_colors (f
, face
)
1716 #ifdef HAVE_X_WINDOWS
1717 if (face
->colors_copied_bitwise_p
)
1722 if (!face
->foreground_defaulted_p
)
1724 x_free_colors (f
, &face
->foreground
, 1);
1725 IF_DEBUG (--ncolors_allocated
);
1728 if (!face
->background_defaulted_p
)
1730 x_free_colors (f
, &face
->background
, 1);
1731 IF_DEBUG (--ncolors_allocated
);
1734 if (face
->underline_p
1735 && !face
->underline_defaulted_p
)
1737 x_free_colors (f
, &face
->underline_color
, 1);
1738 IF_DEBUG (--ncolors_allocated
);
1741 if (face
->overline_p
1742 && !face
->overline_color_defaulted_p
)
1744 x_free_colors (f
, &face
->overline_color
, 1);
1745 IF_DEBUG (--ncolors_allocated
);
1748 if (face
->strike_through_p
1749 && !face
->strike_through_color_defaulted_p
)
1751 x_free_colors (f
, &face
->strike_through_color
, 1);
1752 IF_DEBUG (--ncolors_allocated
);
1755 if (face
->box
!= FACE_NO_BOX
1756 && !face
->box_color_defaulted_p
)
1758 x_free_colors (f
, &face
->box_color
, 1);
1759 IF_DEBUG (--ncolors_allocated
);
1763 #endif /* HAVE_X_WINDOWS */
1766 #endif /* HAVE_WINDOW_SYSTEM */
1770 /***********************************************************************
1772 ***********************************************************************/
1774 /* An enumerator for each field of an XLFD font name. */
1795 /* An enumerator for each possible slant value of a font. Taken from
1796 the XLFD specification. */
1804 XLFD_SLANT_REVERSE_ITALIC
,
1805 XLFD_SLANT_REVERSE_OBLIQUE
,
1809 /* Relative font weight according to XLFD documentation. */
1813 XLFD_WEIGHT_UNKNOWN
,
1814 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1815 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1816 XLFD_WEIGHT_LIGHT
, /* 30 */
1817 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1818 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1819 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1820 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1821 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1822 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1825 /* Relative proportionate width. */
1829 XLFD_SWIDTH_UNKNOWN
,
1830 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1831 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1832 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1833 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1834 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1835 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1836 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1837 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1838 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1841 /* Structure used for tables mapping XLFD weight, slant, and width
1842 names to numeric and symbolic values. */
1848 Lisp_Object
*symbol
;
1851 /* Table of XLFD slant names and their numeric and symbolic
1852 representations. This table must be sorted by slant names in
1855 static struct table_entry slant_table
[] =
1857 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1858 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1859 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1860 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1861 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1862 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1865 /* Table of XLFD weight names. This table must be sorted by weight
1866 names in ascending order. */
1868 static struct table_entry weight_table
[] =
1870 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1871 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1872 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1873 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1874 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1875 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1876 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1877 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1878 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1879 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1880 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1881 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1882 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1883 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1884 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1885 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1888 /* Table of XLFD width names. This table must be sorted by width
1889 names in ascending order. */
1891 static struct table_entry swidth_table
[] =
1893 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1894 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1895 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1896 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1897 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1898 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1899 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1900 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1901 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1902 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1903 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1904 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1905 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1906 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1907 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1910 /* Structure used to hold the result of splitting font names in XLFD
1911 format into their fields. */
1915 /* The original name which is modified destructively by
1916 split_font_name. The pointer is kept here to be able to free it
1917 if it was allocated from the heap. */
1920 /* Font name fields. Each vector element points into `name' above.
1921 Fields are NUL-terminated. */
1922 char *fields
[XLFD_LAST
];
1924 /* Numeric values for those fields that interest us. See
1925 split_font_name for which these are. */
1926 int numeric
[XLFD_LAST
];
1928 /* If the original name matches one of Vface_font_rescale_alist,
1929 the value is the corresponding rescale ratio. Otherwise, the
1931 double rescale_ratio
;
1933 /* Lower value mean higher priority. */
1934 int registry_priority
;
1937 /* The frame in effect when sorting font names. Set temporarily in
1938 sort_fonts so that it is available in font comparison functions. */
1940 static struct frame
*font_frame
;
1942 /* Order by which font selection chooses fonts. The default values
1943 mean `first, find a best match for the font width, then for the
1944 font height, then for weight, then for slant.' This variable can be
1945 set via set-face-font-sort-order. */
1948 static int font_sort_order
[4] = {
1949 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1952 static int font_sort_order
[4];
1955 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1956 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1957 is a pointer to the matching table entry or null if no table entry
1960 static struct table_entry
*
1961 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1962 struct table_entry
*table
;
1964 struct font_name
*font
;
1967 /* Function split_font_name converts fields to lower-case, so there
1968 is no need to use xstrlwr or xstricmp here. */
1969 char *s
= font
->fields
[field_index
];
1970 int low
, mid
, high
, cmp
;
1977 mid
= (low
+ high
) / 2;
1978 cmp
= strcmp (table
[mid
].name
, s
);
1992 /* Return a numeric representation for font name field
1993 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1994 has DIM entries. Value is the numeric value found or DFLT if no
1995 table entry matches. This function is used to translate weight,
1996 slant, and swidth names of XLFD font names to numeric values. */
1999 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
2000 struct table_entry
*table
;
2002 struct font_name
*font
;
2006 struct table_entry
*p
;
2007 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2008 return p
? p
->numeric
: dflt
;
2012 /* Return a symbolic representation for font name field
2013 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2014 has DIM entries. Value is the symbolic value found or DFLT if no
2015 table entry matches. This function is used to translate weight,
2016 slant, and swidth names of XLFD font names to symbols. */
2018 static INLINE Lisp_Object
2019 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2020 struct table_entry
*table
;
2022 struct font_name
*font
;
2026 struct table_entry
*p
;
2027 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2028 return p
? *p
->symbol
: dflt
;
2032 /* Return a numeric value for the slant of the font given by FONT. */
2035 xlfd_numeric_slant (font
)
2036 struct font_name
*font
;
2038 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2039 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2043 /* Return a symbol representing the weight of the font given by FONT. */
2045 static INLINE Lisp_Object
2046 xlfd_symbolic_slant (font
)
2047 struct font_name
*font
;
2049 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2050 font
, XLFD_SLANT
, Qnormal
);
2054 /* Return a numeric value for the weight of the font given by FONT. */
2057 xlfd_numeric_weight (font
)
2058 struct font_name
*font
;
2060 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2061 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2065 /* Return a symbol representing the slant of the font given by FONT. */
2067 static INLINE Lisp_Object
2068 xlfd_symbolic_weight (font
)
2069 struct font_name
*font
;
2071 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2072 font
, XLFD_WEIGHT
, Qnormal
);
2076 /* Return a numeric value for the swidth of the font whose XLFD font
2077 name fields are found in FONT. */
2080 xlfd_numeric_swidth (font
)
2081 struct font_name
*font
;
2083 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2084 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2088 /* Return a symbolic value for the swidth of FONT. */
2090 static INLINE Lisp_Object
2091 xlfd_symbolic_swidth (font
)
2092 struct font_name
*font
;
2094 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2095 font
, XLFD_SWIDTH
, Qnormal
);
2099 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2100 entries. Value is a pointer to the matching table entry or null if
2101 no element of TABLE contains SYMBOL. */
2103 static struct table_entry
*
2104 face_value (table
, dim
, symbol
)
2105 struct table_entry
*table
;
2111 xassert (SYMBOLP (symbol
));
2113 for (i
= 0; i
< dim
; ++i
)
2114 if (EQ (*table
[i
].symbol
, symbol
))
2117 return i
< dim
? table
+ i
: NULL
;
2121 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2122 entries. Value is -1 if SYMBOL is not found in TABLE. */
2125 face_numeric_value (table
, dim
, symbol
)
2126 struct table_entry
*table
;
2130 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2131 return p
? p
->numeric
: -1;
2135 /* Return a numeric value representing the weight specified by Lisp
2136 symbol WEIGHT. Value is one of the enumerators of enum
2140 face_numeric_weight (weight
)
2143 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2147 /* Return a numeric value representing the slant specified by Lisp
2148 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2151 face_numeric_slant (slant
)
2154 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2158 /* Return a numeric value representing the swidth specified by Lisp
2159 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2162 face_numeric_swidth (width
)
2165 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2169 #ifdef HAVE_WINDOW_SYSTEM
2171 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2175 struct font_name
*font
;
2177 /* Function split_font_name converts fields to lower-case, so there
2178 is no need to use tolower here. */
2179 return *font
->fields
[XLFD_SPACING
] != 'p';
2183 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2185 The actual height of the font when displayed on F depends on the
2186 resolution of both the font and frame. For example, a 10pt font
2187 designed for a 100dpi display will display larger than 10pt on a
2188 75dpi display. (It's not unusual to use fonts not designed for the
2189 display one is using. For example, some intlfonts are available in
2190 72dpi versions, only.)
2192 Value is the real point size of FONT on frame F, or 0 if it cannot
2196 xlfd_point_size (f
, font
)
2198 struct font_name
*font
;
2200 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2201 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2205 if (*pixel_field
== '[')
2207 /* The pixel size field is `[A B C D]' which specifies
2208 a transformation matrix.
2214 by which all glyphs of the font are transformed. The spec
2215 says that s scalar value N for the pixel size is equivalent
2216 to A = N * resx/resy, B = C = 0, D = N. */
2217 char *start
= pixel_field
+ 1, *end
;
2221 for (i
= 0; i
< 4; ++i
)
2223 matrix
[i
] = strtod (start
, &end
);
2230 pixel
= atoi (pixel_field
);
2235 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2241 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2242 of frame F. This function is used to guess a point size of font
2243 when only the pixel height of the font is available. */
2246 pixel_point_size (f
, pixel
)
2250 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2254 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2255 point size of one dot. */
2256 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2257 int_pt
= real_pt
+ 0.5;
2263 /* Return a rescaling ratio of a font of NAME. */
2266 font_rescale_ratio (name
)
2269 Lisp_Object tail
, elt
;
2271 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2274 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2275 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2276 return XFLOAT_DATA (XCDR (elt
));
2282 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2283 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2284 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2285 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2286 zero if the font name doesn't have the format we expect. The
2287 expected format is a font name that starts with a `-' and has
2288 XLFD_LAST fields separated by `-'. */
2291 split_font_name (f
, font
, numeric_p
)
2293 struct font_name
*font
;
2298 double rescale_ratio
;
2301 /* This must be done before splitting the font name. */
2302 rescale_ratio
= font_rescale_ratio (font
->name
);
2304 if (*font
->name
== '-')
2306 char *p
= xstrlwr (font
->name
) + 1;
2308 while (i
< XLFD_LAST
)
2310 font
->fields
[i
] = p
;
2313 /* Pixel and point size may be of the form `[....]'. For
2314 BNF, see XLFD spec, chapter 4. Negative values are
2315 indicated by tilde characters which we replace with
2316 `-' characters, here. */
2318 && (i
- 1 == XLFD_PIXEL_SIZE
2319 || i
- 1 == XLFD_POINT_SIZE
))
2324 for (++p
; *p
&& *p
!= ']'; ++p
)
2328 /* Check that the matrix contains 4 floating point
2330 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2333 if (strtod (start
, &end
) == 0 && start
== end
)
2340 while (*p
&& *p
!= '-')
2350 success_p
= i
== XLFD_LAST
;
2352 /* If requested, and font name was in the expected format,
2353 compute numeric values for some fields. */
2354 if (numeric_p
&& success_p
)
2356 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2357 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2358 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2359 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2360 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2361 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2362 font
->rescale_ratio
= rescale_ratio
;
2365 /* Initialize it to zero. It will be overridden by font_list while
2366 trying alternate registries. */
2367 font
->registry_priority
= 0;
2373 /* Build an XLFD font name from font name fields in FONT. Value is a
2374 pointer to the font name, which is allocated via xmalloc. */
2377 build_font_name (font
)
2378 struct font_name
*font
;
2382 char *font_name
= (char *) xmalloc (size
);
2383 int total_length
= 0;
2385 for (i
= 0; i
< XLFD_LAST
; ++i
)
2387 /* Add 1 because of the leading `-'. */
2388 int len
= strlen (font
->fields
[i
]) + 1;
2390 /* Reallocate font_name if necessary. Add 1 for the final
2392 if (total_length
+ len
+ 1 >= size
)
2394 int new_size
= max (2 * size
, size
+ len
+ 1);
2395 int sz
= new_size
* sizeof *font_name
;
2396 font_name
= (char *) xrealloc (font_name
, sz
);
2400 font_name
[total_length
] = '-';
2401 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2402 total_length
+= len
;
2405 font_name
[total_length
] = 0;
2410 /* Free an array FONTS of N font_name structures. This frees FONTS
2411 itself and all `name' fields in its elements. */
2414 free_font_names (fonts
, n
)
2415 struct font_name
*fonts
;
2419 xfree (fonts
[--n
].name
);
2424 /* Sort vector FONTS of font_name structures which contains NFONTS
2425 elements using qsort and comparison function CMPFN. F is the frame
2426 on which the fonts will be used. The global variable font_frame
2427 is temporarily set to F to make it available in CMPFN. */
2430 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2432 struct font_name
*fonts
;
2434 int (*cmpfn
) P_ ((const void *, const void *));
2437 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2442 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2443 display in x_display_list. FONTS is a pointer to a vector of
2444 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2445 alternative patterns from Valternate_fontname_alist if no fonts are
2446 found matching PATTERN.
2448 For all fonts found, set FONTS[i].name to the name of the font,
2449 allocated via xmalloc, and split font names into fields. Ignore
2450 fonts that we can't parse. Value is the number of fonts found. */
2453 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2456 struct font_name
**pfonts
;
2457 int nfonts
, try_alternatives_p
;
2461 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2462 better to do it the other way around. */
2464 Lisp_Object lpattern
, tem
;
2465 struct font_name
*fonts
= 0;
2466 int num_fonts
= nfonts
;
2469 lpattern
= build_string (pattern
);
2471 /* Get the list of fonts matching PATTERN. */
2474 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2477 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2480 if (nfonts
< 0 && CONSP (lfonts
))
2481 num_fonts
= XFASTINT (Flength (lfonts
));
2483 /* Make a copy of the font names we got from X, and
2484 split them into fields. */
2486 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2488 Lisp_Object elt
, tail
;
2489 const char *name
= SDATA (XCAR (tem
));
2491 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2492 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2496 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2507 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2511 /* Make a copy of the font name. */
2512 fonts
[n
].name
= xstrdup (name
);
2514 if (split_font_name (f
, fonts
+ n
, 1))
2516 if (font_scalable_p (fonts
+ n
)
2517 && !may_use_scalable_font_p (name
))
2520 xfree (fonts
[n
].name
);
2526 xfree (fonts
[n
].name
);
2529 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2530 if (n
== 0 && try_alternatives_p
)
2532 Lisp_Object list
= Valternate_fontname_alist
;
2540 while (CONSP (list
))
2542 Lisp_Object entry
= XCAR (list
);
2544 && STRINGP (XCAR (entry
))
2545 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2552 Lisp_Object patterns
= XCAR (list
);
2555 while (CONSP (patterns
)
2556 /* If list is screwed up, give up. */
2557 && (name
= XCAR (patterns
),
2559 /* Ignore patterns equal to PATTERN because we tried that
2560 already with no success. */
2561 && (strcmp (SDATA (name
), pattern
) == 0
2562 || (n
= x_face_list_fonts (f
, SDATA (name
),
2565 patterns
= XCDR (patterns
);
2573 /* Check if a font matching pattern_offset_t on frame F is available
2574 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2575 a font name pattern is generated from FAMILY and REGISTRY. */
2578 face_font_available_p (f
, pattern
)
2580 Lisp_Object pattern
;
2584 if (! STRINGP (pattern
))
2586 Lisp_Object family
, registry
;
2587 char *family_str
, *registry_str
, *pattern_str
;
2589 CHECK_CONS (pattern
);
2590 family
= XCAR (pattern
);
2595 CHECK_STRING (family
);
2596 family_str
= (char *) SDATA (family
);
2598 registry
= XCDR (pattern
);
2599 if (NILP (registry
))
2603 CHECK_STRING (registry
);
2604 registry_str
= (char *) SDATA (registry
);
2607 pattern_str
= (char *) alloca (strlen (family_str
)
2608 + strlen (registry_str
)
2610 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2611 strcat (pattern_str
, family_str
);
2612 strcat (pattern_str
, "-*-");
2613 strcat (pattern_str
, registry_str
);
2614 if (!index (registry_str
, '-'))
2616 if (registry_str
[strlen (registry_str
) - 1] == '*')
2617 strcat (pattern_str
, "-*");
2619 strcat (pattern_str
, "*-*");
2621 pattern
= build_string (pattern_str
);
2624 /* Get the list of fonts matching PATTERN. */
2627 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2630 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2632 return XINT (Flength (fonts
));
2636 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2637 using comparison function CMPFN. Value is the number of fonts
2638 found. If value is non-zero, *FONTS is set to a vector of
2639 font_name structures allocated from the heap containing matching
2640 fonts. Each element of *FONTS contains a name member that is also
2641 allocated from the heap. Font names in these structures are split
2642 into fields. Use free_font_names to free such an array. */
2645 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2648 int (*cmpfn
) P_ ((const void *, const void *));
2649 struct font_name
**fonts
;
2653 /* Get the list of fonts matching pattern. 100 should suffice. */
2654 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2655 if (INTEGERP (Vfont_list_limit
))
2656 nfonts
= XINT (Vfont_list_limit
);
2659 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2661 /* Sort the resulting array and return it in *FONTS. If no
2662 fonts were found, make sure to set *FONTS to null. */
2664 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2675 /* Compare two font_name structures *A and *B. Value is analogous to
2676 strcmp. Sort order is given by the global variable
2677 font_sort_order. Font names are sorted so that, everything else
2678 being equal, fonts with a resolution closer to that of the frame on
2679 which they are used are listed first. The global variable
2680 font_frame is the frame on which we operate. */
2683 cmp_font_names (a
, b
)
2686 struct font_name
*x
= (struct font_name
*) a
;
2687 struct font_name
*y
= (struct font_name
*) b
;
2690 /* All strings have been converted to lower-case by split_font_name,
2691 so we can use strcmp here. */
2692 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2697 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2699 int j
= font_sort_order
[i
];
2700 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2705 /* Everything else being equal, we prefer fonts with an
2706 y-resolution closer to that of the frame. */
2707 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2708 int x_resy
= x
->numeric
[XLFD_RESY
];
2709 int y_resy
= y
->numeric
[XLFD_RESY
];
2710 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2718 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2719 is non-nil list fonts matching that pattern. Otherwise, if
2720 REGISTRY is non-nil return only fonts with that registry, otherwise
2721 return fonts of any registry. Set *FONTS to a vector of font_name
2722 structures allocated from the heap containing the fonts found.
2723 Value is the number of fonts found. */
2726 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2728 Lisp_Object pattern
, family
, registry
;
2729 struct font_name
**fonts
;
2731 char *pattern_str
, *family_str
, *registry_str
;
2735 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2736 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2738 pattern_str
= (char *) alloca (strlen (family_str
)
2739 + strlen (registry_str
)
2741 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2742 strcat (pattern_str
, family_str
);
2743 strcat (pattern_str
, "-*-");
2744 strcat (pattern_str
, registry_str
);
2745 if (!index (registry_str
, '-'))
2747 if (registry_str
[strlen (registry_str
) - 1] == '*')
2748 strcat (pattern_str
, "-*");
2750 strcat (pattern_str
, "*-*");
2754 pattern_str
= (char *) SDATA (pattern
);
2756 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2760 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2761 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2762 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2765 static struct font_name
*
2766 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2767 struct font_name
*fonts1
, *fonts2
;
2768 int nfonts1
, nfonts2
;
2770 int new_nfonts
= nfonts1
+ nfonts2
;
2771 struct font_name
*new_fonts
;
2773 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2774 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2775 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2782 /* Get a sorted list of fonts of family FAMILY on frame F.
2784 If PATTERN is non-nil list fonts matching that pattern.
2786 If REGISTRY is non-nil, return fonts with that registry and the
2787 alternative registries from Vface_alternative_font_registry_alist.
2789 If REGISTRY is nil return fonts of any registry.
2791 Set *FONTS to a vector of font_name structures allocated from the
2792 heap containing the fonts found. Value is the number of fonts
2796 font_list (f
, pattern
, family
, registry
, fonts
)
2798 Lisp_Object pattern
, family
, registry
;
2799 struct font_name
**fonts
;
2801 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2803 if (!NILP (registry
)
2804 && CONSP (Vface_alternative_font_registry_alist
))
2808 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2813 for (alter
= XCDR (alter
), reg_prio
= 1;
2815 alter
= XCDR (alter
), reg_prio
++)
2816 if (STRINGP (XCAR (alter
)))
2819 struct font_name
*fonts2
;
2821 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2823 for (i
= 0; i
< nfonts2
; i
++)
2824 fonts2
[i
].registry_priority
= reg_prio
;
2825 *fonts
= (nfonts
> 0
2826 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2837 /* Remove elements from LIST whose cars are `equal'. Called from
2838 x-family-fonts and x-font-family-list to remove duplicate font
2842 remove_duplicates (list
)
2845 Lisp_Object tail
= list
;
2847 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2849 Lisp_Object next
= XCDR (tail
);
2850 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2851 XSETCDR (tail
, XCDR (next
));
2858 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2859 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2860 If FAMILY is omitted or nil, list all families.
2861 Otherwise, FAMILY must be a string, possibly containing wildcards
2863 If FRAME is omitted or nil, use the selected frame.
2864 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2865 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2866 FAMILY is the font family name. POINT-SIZE is the size of the
2867 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2868 width, weight and slant of the font. These symbols are the same as for
2869 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2870 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2871 giving the registry and encoding of the font.
2872 The result list is sorted according to the current setting of
2873 the face font sort order. */)
2875 Lisp_Object family
, frame
;
2877 struct frame
*f
= check_x_frame (frame
);
2878 struct font_name
*fonts
;
2881 struct gcpro gcpro1
;
2884 CHECK_STRING (family
);
2888 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2889 for (i
= nfonts
- 1; i
>= 0; --i
)
2891 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2894 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2895 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2896 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2897 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2898 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2899 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2900 tem
= build_font_name (fonts
+ i
);
2901 ASET (v
, 6, build_string (tem
));
2902 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2903 fonts
[i
].fields
[XLFD_ENCODING
]);
2904 ASET (v
, 7, build_string (tem
));
2907 result
= Fcons (v
, result
);
2910 remove_duplicates (result
);
2911 free_font_names (fonts
, nfonts
);
2917 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2919 doc
: /* Return a list of available font families on FRAME.
2920 If FRAME is omitted or nil, use the selected frame.
2921 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2922 is a font family, and FIXED-P is non-nil if fonts of that family
2923 are fixed-pitch. */)
2927 struct frame
*f
= check_x_frame (frame
);
2929 struct font_name
*fonts
;
2931 struct gcpro gcpro1
;
2932 int count
= SPECPDL_INDEX ();
2934 /* Let's consider all fonts. */
2935 specbind (intern ("font-list-limit"), make_number (-1));
2936 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2940 for (i
= nfonts
- 1; i
>= 0; --i
)
2941 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2942 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2945 remove_duplicates (result
);
2946 free_font_names (fonts
, nfonts
);
2948 return unbind_to (count
, result
);
2952 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2953 doc
: /* Return a list of the names of available fonts matching PATTERN.
2954 If optional arguments FACE and FRAME are specified, return only fonts
2955 the same size as FACE on FRAME.
2956 PATTERN is a string, perhaps with wildcard characters;
2957 the * character matches any substring, and
2958 the ? character matches any single character.
2959 PATTERN is case-insensitive.
2960 FACE is a face name--a symbol.
2962 The return value is a list of strings, suitable as arguments to
2965 Fonts Emacs can't use may or may not be excluded
2966 even if they match PATTERN and FACE.
2967 The optional fourth argument MAXIMUM sets a limit on how many
2968 fonts to match. The first MAXIMUM fonts are reported.
2969 The optional fifth argument WIDTH, if specified, is a number of columns
2970 occupied by a character of a font. In that case, return only fonts
2971 the WIDTH times as wide as FACE on FRAME. */)
2972 (pattern
, face
, frame
, maximum
, width
)
2973 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2980 CHECK_STRING (pattern
);
2986 CHECK_NATNUM (maximum
);
2987 maxnames
= XINT (maximum
);
2991 CHECK_NUMBER (width
);
2993 /* We can't simply call check_x_frame because this function may be
2994 called before any frame is created. */
2995 f
= frame_or_selected_frame (frame
, 2);
2996 if (!FRAME_WINDOW_P (f
))
2998 /* Perhaps we have not yet created any frame. */
3003 /* Determine the width standard for comparison with the fonts we find. */
3009 /* This is of limited utility since it works with character
3010 widths. Keep it for compatibility. --gerd. */
3011 int face_id
= lookup_named_face (f
, face
, 0);
3012 struct face
*face
= (face_id
< 0
3014 : FACE_FROM_ID (f
, face_id
));
3017 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3018 not maximum as on X. Redefine here. */
3020 #define FONT_WIDTH FONT_MAX_WIDTH
3023 if (face
&& face
->font
)
3024 size
= FONT_WIDTH (face
->font
);
3026 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3029 size
*= XINT (width
);
3033 Lisp_Object args
[2];
3035 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3037 /* We don't have to check fontsets. */
3039 args
[1] = list_fontsets (f
, pattern
, size
);
3040 return Fnconc (2, args
);
3044 #endif /* HAVE_WINDOW_SYSTEM */
3048 /***********************************************************************
3050 ***********************************************************************/
3052 /* Access face attributes of face LFACE, a Lisp vector. */
3054 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3055 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3056 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3057 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3058 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3059 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3060 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3061 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3062 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3063 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3064 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3065 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3066 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3067 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3068 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3069 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3071 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3072 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3074 #define LFACEP(LFACE) \
3076 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3077 && EQ (AREF (LFACE, 0), Qface))
3082 /* Check consistency of Lisp face attribute vector ATTRS. */
3085 check_lface_attrs (attrs
)
3088 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3089 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3090 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3091 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3092 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3093 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3094 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3095 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3096 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3097 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3098 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3099 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3100 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3101 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3102 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3103 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3104 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3105 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3106 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3107 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3108 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3109 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3110 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3111 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3112 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3113 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3114 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3115 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3116 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3117 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3118 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3119 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3120 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3121 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3122 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3123 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3124 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3125 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3126 #ifdef HAVE_WINDOW_SYSTEM
3127 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3128 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3129 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3130 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3131 || NILP (attrs
[LFACE_FONT_INDEX
])
3132 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3137 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3145 xassert (LFACEP (lface
));
3146 check_lface_attrs (XVECTOR (lface
)->contents
);
3150 #else /* GLYPH_DEBUG == 0 */
3152 #define check_lface_attrs(attrs) (void) 0
3153 #define check_lface(lface) (void) 0
3155 #endif /* GLYPH_DEBUG == 0 */
3159 /* Face-merge cycle checking. */
3161 /* A `named merge point' is simply a point during face-merging where we
3162 look up a face by name. We keep a stack of which named lookups we're
3163 currently processing so that we can easily detect cycles, using a
3164 linked- list of struct named_merge_point structures, typically
3165 allocated on the stack frame of the named lookup functions which are
3166 active (so no consing is required). */
3167 struct named_merge_point
3169 Lisp_Object face_name
;
3170 struct named_merge_point
*prev
;
3174 /* If a face merging cycle is detected for FACE_NAME, return 0,
3175 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3176 FACE_NAME, as the head of the linked list pointed to by
3177 NAMED_MERGE_POINTS, and return 1. */
3180 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3181 Lisp_Object face_name
,
3182 struct named_merge_point
**named_merge_points
)
3184 struct named_merge_point
*prev
;
3186 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3187 if (EQ (face_name
, prev
->face_name
))
3190 new_named_merge_point
->face_name
= face_name
;
3191 new_named_merge_point
->prev
= *named_merge_points
;
3193 *named_merge_points
= new_named_merge_point
;
3201 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3202 to make it a symvol. If FACE_NAME is an alias for another face,
3203 return that face's name. */
3206 resolve_face_name (face_name
)
3207 Lisp_Object face_name
;
3209 Lisp_Object aliased
;
3211 if (STRINGP (face_name
))
3212 face_name
= intern (SDATA (face_name
));
3214 while (SYMBOLP (face_name
))
3216 aliased
= Fget (face_name
, Qface_alias
);
3220 face_name
= aliased
;
3227 /* Return the face definition of FACE_NAME on frame F. F null means
3228 return the definition for new frames. FACE_NAME may be a string or
3229 a symbol (apparently Emacs 20.2 allowed strings as face names in
3230 face text properties; Ediff uses that). If FACE_NAME is an alias
3231 for another face, return that face's definition. If SIGNAL_P is
3232 non-zero, signal an error if FACE_NAME is not a valid face name.
3233 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3236 static INLINE Lisp_Object
3237 lface_from_face_name (f
, face_name
, signal_p
)
3239 Lisp_Object face_name
;
3244 face_name
= resolve_face_name (face_name
);
3247 lface
= assq_no_quit (face_name
, f
->face_alist
);
3249 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3252 lface
= XCDR (lface
);
3254 signal_error ("Invalid face", face_name
);
3256 check_lface (lface
);
3261 /* Get face attributes of face FACE_NAME from frame-local faces on
3262 frame F. Store the resulting attributes in ATTRS which must point
3263 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3264 is non-zero, signal an error if FACE_NAME does not name a face.
3265 Otherwise, value is zero if FACE_NAME is not a face. */
3268 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3270 Lisp_Object face_name
;
3277 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3280 bcopy (XVECTOR (lface
)->contents
, attrs
,
3281 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3291 /* Non-zero if all attributes in face attribute vector ATTRS are
3292 specified, i.e. are non-nil. */
3295 lface_fully_specified_p (attrs
)
3300 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3301 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3302 && i
!= LFACE_AVGWIDTH_INDEX
)
3303 if (UNSPECIFIEDP (attrs
[i
])
3305 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3306 always unspecified. */
3307 && i
!= LFACE_STIPPLE_INDEX
3312 return i
== LFACE_VECTOR_SIZE
;
3315 #ifdef HAVE_WINDOW_SYSTEM
3317 /* Set font-related attributes of Lisp face LFACE from the fullname of
3318 the font opened by FONTNAME. If FORCE_P is zero, set only
3319 unspecified attributes of LFACE. The exception is `font'
3320 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3322 If FONTNAME is not available on frame F,
3323 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3324 If the fullname is not in a valid XLFD format,
3325 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3326 in LFACE and return 1.
3327 Otherwise, return 1. */
3330 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3333 Lisp_Object fontname
;
3334 int force_p
, may_fail_p
;
3336 struct font_name font
;
3341 char *font_name
= SDATA (fontname
);
3342 struct font_info
*font_info
;
3344 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3345 fontset
= fs_query_fontset (fontname
, 0);
3347 font_name
= SDATA (fontset_ascii (fontset
));
3349 /* Check if FONT_NAME is surely available on the system. Usually
3350 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3351 returns quickly. But, even if FONT_NAME is not yet cached,
3352 caching it now is not futail because we anyway load the font
3355 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3365 font
.name
= STRDUPA (font_info
->full_name
);
3366 have_xlfd_p
= split_font_name (f
, &font
, 1);
3368 /* Set attributes only if unspecified, otherwise face defaults for
3369 new frames would never take effect. If we couldn't get a font
3370 name conforming to XLFD, set normal values. */
3372 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3377 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3378 + strlen (font
.fields
[XLFD_FOUNDRY
])
3380 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3381 font
.fields
[XLFD_FAMILY
]);
3382 val
= build_string (buffer
);
3385 val
= build_string ("*");
3386 LFACE_FAMILY (lface
) = val
;
3389 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3392 pt
= xlfd_point_size (f
, &font
);
3394 pt
= pixel_point_size (f
, font_info
->height
* 10);
3396 LFACE_HEIGHT (lface
) = make_number (pt
);
3399 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3400 LFACE_SWIDTH (lface
)
3401 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3403 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3404 LFACE_AVGWIDTH (lface
)
3406 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3409 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3410 LFACE_WEIGHT (lface
)
3411 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3413 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3415 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3417 LFACE_FONT (lface
) = fontname
;
3422 #endif /* HAVE_WINDOW_SYSTEM */
3425 /* Merges the face height FROM with the face height TO, and returns the
3426 merged height. If FROM is an invalid height, then INVALID is
3427 returned instead. FROM and TO may be either absolute face heights or
3428 `relative' heights; the returned value is always an absolute height
3429 unless both FROM and TO are relative. GCPRO is a lisp value that
3430 will be protected from garbage-collection if this function makes a
3434 merge_face_heights (from
, to
, invalid
, gcpro
)
3435 Lisp_Object from
, to
, invalid
, gcpro
;
3437 Lisp_Object result
= invalid
;
3439 if (INTEGERP (from
))
3440 /* FROM is absolute, just use it as is. */
3442 else if (FLOATP (from
))
3443 /* FROM is a scale, use it to adjust TO. */
3446 /* relative X absolute => absolute */
3447 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3448 else if (FLOATP (to
))
3449 /* relative X relative => relative */
3450 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3451 else if (UNSPECIFIEDP (to
))
3454 else if (FUNCTIONP (from
))
3455 /* FROM is a function, which use to adjust TO. */
3457 /* Call function with current height as argument.
3458 From is the new height. */
3459 Lisp_Object args
[2];
3460 struct gcpro gcpro1
;
3466 result
= safe_call (2, args
);
3470 /* Ensure that if TO was absolute, so is the result. */
3471 if (INTEGERP (to
) && !INTEGERP (result
))
3479 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3480 store the resulting attributes in TO, which must be already be
3481 completely specified and contain only absolute attributes. Every
3482 specified attribute of FROM overrides the corresponding attribute of
3483 TO; relative attributes in FROM are merged with the absolute value in
3484 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3485 loops in face inheritance; it should be 0 when called from other
3489 merge_face_vectors (f
, from
, to
, named_merge_points
)
3491 Lisp_Object
*from
, *to
;
3492 struct named_merge_point
*named_merge_points
;
3496 /* If FROM inherits from some other faces, merge their attributes into
3497 TO before merging FROM's direct attributes. Note that an :inherit
3498 attribute of `unspecified' is the same as one of nil; we never
3499 merge :inherit attributes, so nil is more correct, but lots of
3500 other code uses `unspecified' as a generic value for face attributes. */
3501 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3502 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3503 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3505 /* If TO specifies a :font attribute, and FROM specifies some
3506 font-related attribute, we need to clear TO's :font attribute
3507 (because it will be inconsistent with whatever FROM specifies, and
3508 FROM takes precedence). */
3509 if (!NILP (to
[LFACE_FONT_INDEX
])
3510 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3511 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3512 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3513 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3514 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3515 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3516 to
[LFACE_FONT_INDEX
] = Qnil
;
3518 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3519 if (!UNSPECIFIEDP (from
[i
]))
3521 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3522 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
],
3523 named_merge_points
);
3528 /* TO is always an absolute face, which should inherit from nothing.
3529 We blindly copy the :inherit attribute above and fix it up here. */
3530 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3533 /* Merge the named face FACE_NAME on frame F, into the vector of face
3534 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3535 inheritance. Returns true if FACE_NAME is a valid face name and
3536 merging succeeded. */
3539 merge_named_face (f
, face_name
, to
, named_merge_points
)
3541 Lisp_Object face_name
;
3543 struct named_merge_point
*named_merge_points
;
3545 struct named_merge_point named_merge_point
;
3547 if (push_named_merge_point (&named_merge_point
,
3548 face_name
, &named_merge_points
))
3550 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3551 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3554 merge_face_vectors (f
, from
, to
, named_merge_points
);
3563 /* Merge face attributes from the lisp `face reference' FACE_REF on
3564 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3565 problems with FACE_REF cause an error message to be shown. Return
3566 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3567 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3568 list structure; it may be 0 for most callers.
3570 FACE_REF may be a single face specification or a list of such
3571 specifications. Each face specification can be:
3573 1. A symbol or string naming a Lisp face.
3575 2. A property list of the form (KEYWORD VALUE ...) where each
3576 KEYWORD is a face attribute name, and value is an appropriate value
3579 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3580 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3581 for compatibility with 20.2.
3583 Face specifications earlier in lists take precedence over later
3587 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3589 Lisp_Object face_ref
;
3592 struct named_merge_point
*named_merge_points
;
3594 int ok
= 1; /* Succeed without an error? */
3596 if (CONSP (face_ref
))
3598 Lisp_Object first
= XCAR (face_ref
);
3600 if (EQ (first
, Qforeground_color
)
3601 || EQ (first
, Qbackground_color
))
3603 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3604 . COLOR). COLOR must be a string. */
3605 Lisp_Object color_name
= XCDR (face_ref
);
3606 Lisp_Object color
= first
;
3608 if (STRINGP (color_name
))
3610 if (EQ (color
, Qforeground_color
))
3611 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3613 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3618 add_to_log ("Invalid face color", color_name
, Qnil
);
3622 else if (SYMBOLP (first
)
3623 && *SDATA (SYMBOL_NAME (first
)) == ':')
3625 /* Assume this is the property list form. */
3626 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3628 Lisp_Object keyword
= XCAR (face_ref
);
3629 Lisp_Object value
= XCAR (XCDR (face_ref
));
3632 if (EQ (keyword
, QCfamily
))
3634 if (STRINGP (value
))
3635 to
[LFACE_FAMILY_INDEX
] = value
;
3639 else if (EQ (keyword
, QCheight
))
3641 Lisp_Object new_height
=
3642 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3645 if (! NILP (new_height
))
3646 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3650 else if (EQ (keyword
, QCweight
))
3653 && face_numeric_weight (value
) >= 0)
3654 to
[LFACE_WEIGHT_INDEX
] = value
;
3658 else if (EQ (keyword
, QCslant
))
3661 && face_numeric_slant (value
) >= 0)
3662 to
[LFACE_SLANT_INDEX
] = value
;
3666 else if (EQ (keyword
, QCunderline
))
3671 to
[LFACE_UNDERLINE_INDEX
] = value
;
3675 else if (EQ (keyword
, QCoverline
))
3680 to
[LFACE_OVERLINE_INDEX
] = value
;
3684 else if (EQ (keyword
, QCstrike_through
))
3689 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3693 else if (EQ (keyword
, QCbox
))
3696 value
= make_number (1);
3697 if (INTEGERP (value
)
3701 to
[LFACE_BOX_INDEX
] = value
;
3705 else if (EQ (keyword
, QCinverse_video
)
3706 || EQ (keyword
, QCreverse_video
))
3708 if (EQ (value
, Qt
) || NILP (value
))
3709 to
[LFACE_INVERSE_INDEX
] = value
;
3713 else if (EQ (keyword
, QCforeground
))
3715 if (STRINGP (value
))
3716 to
[LFACE_FOREGROUND_INDEX
] = value
;
3720 else if (EQ (keyword
, QCbackground
))
3722 if (STRINGP (value
))
3723 to
[LFACE_BACKGROUND_INDEX
] = value
;
3727 else if (EQ (keyword
, QCstipple
))
3729 #ifdef HAVE_X_WINDOWS
3730 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3731 if (!NILP (pixmap_p
))
3732 to
[LFACE_STIPPLE_INDEX
] = value
;
3737 else if (EQ (keyword
, QCwidth
))
3740 && face_numeric_swidth (value
) >= 0)
3741 to
[LFACE_SWIDTH_INDEX
] = value
;
3745 else if (EQ (keyword
, QCinherit
))
3747 /* This is not really very useful; it's just like a
3748 normal face reference. */
3749 if (! merge_face_ref (f
, value
, to
,
3750 err_msgs
, named_merge_points
))
3758 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3762 face_ref
= XCDR (XCDR (face_ref
));
3767 /* This is a list of face refs. Those at the beginning of the
3768 list take precedence over what follows, so we have to merge
3769 from the end backwards. */
3770 Lisp_Object next
= XCDR (face_ref
);
3773 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3775 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3781 /* FACE_REF ought to be a face name. */
3782 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3783 if (!ok
&& err_msgs
)
3784 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3791 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3792 Sinternal_make_lisp_face
, 1, 2, 0,
3793 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3794 If FACE was not known as a face before, create a new one.
3795 If optional argument FRAME is specified, make a frame-local face
3796 for that frame. Otherwise operate on the global face definition.
3797 Value is a vector of face attributes. */)
3799 Lisp_Object face
, frame
;
3801 Lisp_Object global_lface
, lface
;
3805 CHECK_SYMBOL (face
);
3806 global_lface
= lface_from_face_name (NULL
, face
, 0);
3810 CHECK_LIVE_FRAME (frame
);
3812 lface
= lface_from_face_name (f
, face
, 0);
3815 f
= NULL
, lface
= Qnil
;
3817 /* Add a global definition if there is none. */
3818 if (NILP (global_lface
))
3820 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3822 AREF (global_lface
, 0) = Qface
;
3823 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3824 Vface_new_frame_defaults
);
3826 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3827 face id to Lisp face is given by the vector lface_id_to_name.
3828 The mapping from Lisp face to Lisp face id is given by the
3829 property `face' of the Lisp face name. */
3830 if (next_lface_id
== lface_id_to_name_size
)
3832 int new_size
= max (50, 2 * lface_id_to_name_size
);
3833 int sz
= new_size
* sizeof *lface_id_to_name
;
3834 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3835 lface_id_to_name_size
= new_size
;
3838 lface_id_to_name
[next_lface_id
] = face
;
3839 Fput (face
, Qface
, make_number (next_lface_id
));
3843 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3844 AREF (global_lface
, i
) = Qunspecified
;
3846 /* Add a frame-local definition. */
3851 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3853 AREF (lface
, 0) = Qface
;
3854 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3857 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3858 AREF (lface
, i
) = Qunspecified
;
3861 lface
= global_lface
;
3863 /* Changing a named face means that all realized faces depending on
3864 that face are invalid. Since we cannot tell which realized faces
3865 depend on the face, make sure they are all removed. This is done
3866 by incrementing face_change_count. The next call to
3867 init_iterator will then free realized faces. */
3868 ++face_change_count
;
3869 ++windows_or_buffers_changed
;
3871 xassert (LFACEP (lface
));
3872 check_lface (lface
);
3877 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3878 Sinternal_lisp_face_p
, 1, 2, 0,
3879 doc
: /* Return non-nil if FACE names a face.
3880 If optional second parameter FRAME is non-nil, check for the
3881 existence of a frame-local face with name FACE on that frame.
3882 Otherwise check for the existence of a global face. */)
3884 Lisp_Object face
, frame
;
3890 CHECK_LIVE_FRAME (frame
);
3891 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3894 lface
= lface_from_face_name (NULL
, face
, 0);
3900 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3901 Sinternal_copy_lisp_face
, 4, 4, 0,
3902 doc
: /* Copy face FROM to TO.
3903 If FRAME is t, copy the global face definition of FROM.
3904 Otherwise, copy the frame-local definition of FROM on FRAME.
3905 If NEW-FRAME is a frame, copy that data into the frame-local
3906 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
3907 FRAME controls where the data is copied to.
3909 The value is TO. */)
3910 (from
, to
, frame
, new_frame
)
3911 Lisp_Object from
, to
, frame
, new_frame
;
3913 Lisp_Object lface
, copy
;
3915 CHECK_SYMBOL (from
);
3920 /* Copy global definition of FROM. We don't make copies of
3921 strings etc. because 20.2 didn't do it either. */
3922 lface
= lface_from_face_name (NULL
, from
, 1);
3923 copy
= Finternal_make_lisp_face (to
, Qnil
);
3927 /* Copy frame-local definition of FROM. */
3928 if (NILP (new_frame
))
3930 CHECK_LIVE_FRAME (frame
);
3931 CHECK_LIVE_FRAME (new_frame
);
3932 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3933 copy
= Finternal_make_lisp_face (to
, new_frame
);
3936 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3937 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3939 /* Changing a named face means that all realized faces depending on
3940 that face are invalid. Since we cannot tell which realized faces
3941 depend on the face, make sure they are all removed. This is done
3942 by incrementing face_change_count. The next call to
3943 init_iterator will then free realized faces. */
3944 ++face_change_count
;
3945 ++windows_or_buffers_changed
;
3951 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3952 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3953 doc
: /* Set attribute ATTR of FACE to VALUE.
3954 FRAME being a frame means change the face on that frame.
3955 FRAME nil means change the face of the selected frame.
3956 FRAME t means change the default for new frames.
3957 FRAME 0 means change the face on all frames, and change the default
3959 (face
, attr
, value
, frame
)
3960 Lisp_Object face
, attr
, value
, frame
;
3963 Lisp_Object old_value
= Qnil
;
3964 /* Set 1 if ATTR is QCfont. */
3965 int font_attr_p
= 0;
3966 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3967 int font_related_attr_p
= 0;
3969 CHECK_SYMBOL (face
);
3970 CHECK_SYMBOL (attr
);
3972 face
= resolve_face_name (face
);
3974 /* If FRAME is 0, change face on all frames, and change the
3975 default for new frames. */
3976 if (INTEGERP (frame
) && XINT (frame
) == 0)
3979 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3980 FOR_EACH_FRAME (tail
, frame
)
3981 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3985 /* Set lface to the Lisp attribute vector of FACE. */
3987 lface
= lface_from_face_name (NULL
, face
, 1);
3991 frame
= selected_frame
;
3993 CHECK_LIVE_FRAME (frame
);
3994 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3996 /* If a frame-local face doesn't exist yet, create one. */
3998 lface
= Finternal_make_lisp_face (face
, frame
);
4001 if (EQ (attr
, QCfamily
))
4003 if (!UNSPECIFIEDP (value
))
4005 CHECK_STRING (value
);
4006 if (SCHARS (value
) == 0)
4007 signal_error ("Invalid face family", value
);
4009 old_value
= LFACE_FAMILY (lface
);
4010 LFACE_FAMILY (lface
) = value
;
4011 font_related_attr_p
= 1;
4013 else if (EQ (attr
, QCheight
))
4015 if (!UNSPECIFIEDP (value
))
4019 test
= (EQ (face
, Qdefault
)
4021 /* The default face must have an absolute size,
4022 otherwise, we do a test merge with a random
4023 height to see if VALUE's ok. */
4024 : merge_face_heights (value
, make_number (10), Qnil
, Qnil
));
4026 if (!INTEGERP (test
) || XINT (test
) <= 0)
4027 signal_error ("Invalid face height", value
);
4030 old_value
= LFACE_HEIGHT (lface
);
4031 LFACE_HEIGHT (lface
) = value
;
4032 font_related_attr_p
= 1;
4034 else if (EQ (attr
, QCweight
))
4036 if (!UNSPECIFIEDP (value
))
4038 CHECK_SYMBOL (value
);
4039 if (face_numeric_weight (value
) < 0)
4040 signal_error ("Invalid face weight", value
);
4042 old_value
= LFACE_WEIGHT (lface
);
4043 LFACE_WEIGHT (lface
) = value
;
4044 font_related_attr_p
= 1;
4046 else if (EQ (attr
, QCslant
))
4048 if (!UNSPECIFIEDP (value
))
4050 CHECK_SYMBOL (value
);
4051 if (face_numeric_slant (value
) < 0)
4052 signal_error ("Invalid face slant", value
);
4054 old_value
= LFACE_SLANT (lface
);
4055 LFACE_SLANT (lface
) = value
;
4056 font_related_attr_p
= 1;
4058 else if (EQ (attr
, QCunderline
))
4060 if (!UNSPECIFIEDP (value
))
4061 if ((SYMBOLP (value
)
4063 && !EQ (value
, Qnil
))
4064 /* Underline color. */
4066 && SCHARS (value
) == 0))
4067 signal_error ("Invalid face underline", value
);
4069 old_value
= LFACE_UNDERLINE (lface
);
4070 LFACE_UNDERLINE (lface
) = value
;
4072 else if (EQ (attr
, QCoverline
))
4074 if (!UNSPECIFIEDP (value
))
4075 if ((SYMBOLP (value
)
4077 && !EQ (value
, Qnil
))
4078 /* Overline color. */
4080 && SCHARS (value
) == 0))
4081 signal_error ("Invalid face overline", value
);
4083 old_value
= LFACE_OVERLINE (lface
);
4084 LFACE_OVERLINE (lface
) = value
;
4086 else if (EQ (attr
, QCstrike_through
))
4088 if (!UNSPECIFIEDP (value
))
4089 if ((SYMBOLP (value
)
4091 && !EQ (value
, Qnil
))
4092 /* Strike-through color. */
4094 && SCHARS (value
) == 0))
4095 signal_error ("Invalid face strike-through", value
);
4097 old_value
= LFACE_STRIKE_THROUGH (lface
);
4098 LFACE_STRIKE_THROUGH (lface
) = value
;
4100 else if (EQ (attr
, QCbox
))
4104 /* Allow t meaning a simple box of width 1 in foreground color
4107 value
= make_number (1);
4109 if (UNSPECIFIEDP (value
))
4111 else if (NILP (value
))
4113 else if (INTEGERP (value
))
4114 valid_p
= XINT (value
) != 0;
4115 else if (STRINGP (value
))
4116 valid_p
= SCHARS (value
) > 0;
4117 else if (CONSP (value
))
4133 if (EQ (k
, QCline_width
))
4135 if (!INTEGERP (v
) || XINT (v
) == 0)
4138 else if (EQ (k
, QCcolor
))
4140 if (!STRINGP (v
) || SCHARS (v
) == 0)
4143 else if (EQ (k
, QCstyle
))
4145 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4152 valid_p
= NILP (tem
);
4158 signal_error ("Invalid face box", value
);
4160 old_value
= LFACE_BOX (lface
);
4161 LFACE_BOX (lface
) = value
;
4163 else if (EQ (attr
, QCinverse_video
)
4164 || EQ (attr
, QCreverse_video
))
4166 if (!UNSPECIFIEDP (value
))
4168 CHECK_SYMBOL (value
);
4169 if (!EQ (value
, Qt
) && !NILP (value
))
4170 signal_error ("Invalid inverse-video face attribute value", value
);
4172 old_value
= LFACE_INVERSE (lface
);
4173 LFACE_INVERSE (lface
) = value
;
4175 else if (EQ (attr
, QCforeground
))
4177 if (!UNSPECIFIEDP (value
))
4179 /* Don't check for valid color names here because it depends
4180 on the frame (display) whether the color will be valid
4181 when the face is realized. */
4182 CHECK_STRING (value
);
4183 if (SCHARS (value
) == 0)
4184 signal_error ("Empty foreground color value", value
);
4186 old_value
= LFACE_FOREGROUND (lface
);
4187 LFACE_FOREGROUND (lface
) = value
;
4189 else if (EQ (attr
, QCbackground
))
4191 if (!UNSPECIFIEDP (value
))
4193 /* Don't check for valid color names here because it depends
4194 on the frame (display) whether the color will be valid
4195 when the face is realized. */
4196 CHECK_STRING (value
);
4197 if (SCHARS (value
) == 0)
4198 signal_error ("Empty background color value", value
);
4200 old_value
= LFACE_BACKGROUND (lface
);
4201 LFACE_BACKGROUND (lface
) = value
;
4203 else if (EQ (attr
, QCstipple
))
4205 #ifdef HAVE_X_WINDOWS
4206 if (!UNSPECIFIEDP (value
)
4208 && NILP (Fbitmap_spec_p (value
)))
4209 signal_error ("Invalid stipple attribute", value
);
4210 old_value
= LFACE_STIPPLE (lface
);
4211 LFACE_STIPPLE (lface
) = value
;
4212 #endif /* HAVE_X_WINDOWS */
4214 else if (EQ (attr
, QCwidth
))
4216 if (!UNSPECIFIEDP (value
))
4218 CHECK_SYMBOL (value
);
4219 if (face_numeric_swidth (value
) < 0)
4220 signal_error ("Invalid face width", value
);
4222 old_value
= LFACE_SWIDTH (lface
);
4223 LFACE_SWIDTH (lface
) = value
;
4224 font_related_attr_p
= 1;
4226 else if (EQ (attr
, QCfont
))
4228 #ifdef HAVE_WINDOW_SYSTEM
4229 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4231 /* Set font-related attributes of the Lisp face from an XLFD
4237 f
= SELECTED_FRAME ();
4239 f
= check_x_frame (frame
);
4241 if (!UNSPECIFIEDP (value
))
4243 CHECK_STRING (value
);
4245 /* VALUE may be a fontset name or an alias of fontset. In
4246 such a case, use the base fontset name. */
4247 tmp
= Fquery_fontset (value
, Qnil
);
4251 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4252 signal_error ("Invalid font or fontset name", value
);
4257 #endif /* HAVE_WINDOW_SYSTEM */
4259 else if (EQ (attr
, QCinherit
))
4262 if (SYMBOLP (value
))
4265 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4266 if (!SYMBOLP (XCAR (tail
)))
4269 LFACE_INHERIT (lface
) = value
;
4271 signal_error ("Invalid face inheritance", value
);
4273 else if (EQ (attr
, QCbold
))
4275 old_value
= LFACE_WEIGHT (lface
);
4276 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4277 font_related_attr_p
= 1;
4279 else if (EQ (attr
, QCitalic
))
4281 old_value
= LFACE_SLANT (lface
);
4282 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4283 font_related_attr_p
= 1;
4286 signal_error ("Invalid face attribute name", attr
);
4288 if (font_related_attr_p
4289 && !UNSPECIFIEDP (value
))
4290 /* If a font-related attribute other than QCfont is specified, the
4291 original `font' attribute nor that of default face is useless
4292 to determine a new font. Thus, we set it to nil so that font
4293 selection mechanism doesn't use it. */
4294 LFACE_FONT (lface
) = Qnil
;
4296 /* Changing a named face means that all realized faces depending on
4297 that face are invalid. Since we cannot tell which realized faces
4298 depend on the face, make sure they are all removed. This is done
4299 by incrementing face_change_count. The next call to
4300 init_iterator will then free realized faces. */
4302 && (EQ (attr
, QCfont
)
4303 || NILP (Fequal (old_value
, value
))))
4305 ++face_change_count
;
4306 ++windows_or_buffers_changed
;
4309 if (!UNSPECIFIEDP (value
)
4310 && NILP (Fequal (old_value
, value
)))
4316 if (EQ (face
, Qdefault
))
4318 #ifdef HAVE_WINDOW_SYSTEM
4319 /* Changed font-related attributes of the `default' face are
4320 reflected in changed `font' frame parameters. */
4322 && (font_related_attr_p
|| font_attr_p
)
4323 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4324 set_font_frame_param (frame
, lface
);
4326 #endif /* HAVE_WINDOW_SYSTEM */
4328 if (EQ (attr
, QCforeground
))
4329 param
= Qforeground_color
;
4330 else if (EQ (attr
, QCbackground
))
4331 param
= Qbackground_color
;
4333 #ifdef HAVE_WINDOW_SYSTEM
4335 else if (EQ (face
, Qscroll_bar
))
4337 /* Changing the colors of `scroll-bar' sets frame parameters
4338 `scroll-bar-foreground' and `scroll-bar-background'. */
4339 if (EQ (attr
, QCforeground
))
4340 param
= Qscroll_bar_foreground
;
4341 else if (EQ (attr
, QCbackground
))
4342 param
= Qscroll_bar_background
;
4344 #endif /* not WINDOWSNT */
4345 else if (EQ (face
, Qborder
))
4347 /* Changing background color of `border' sets frame parameter
4349 if (EQ (attr
, QCbackground
))
4350 param
= Qborder_color
;
4352 else if (EQ (face
, Qcursor
))
4354 /* Changing background color of `cursor' sets frame parameter
4356 if (EQ (attr
, QCbackground
))
4357 param
= Qcursor_color
;
4359 else if (EQ (face
, Qmouse
))
4361 /* Changing background color of `mouse' sets frame parameter
4363 if (EQ (attr
, QCbackground
))
4364 param
= Qmouse_color
;
4366 #endif /* HAVE_WINDOW_SYSTEM */
4367 else if (EQ (face
, Qmenu
))
4369 /* Indicate that we have to update the menu bar when
4370 realizing faces on FRAME. FRAME t change the
4371 default for new frames. We do this by setting
4372 setting the flag in new face caches */
4375 struct frame
*f
= XFRAME (frame
);
4376 if (FRAME_FACE_CACHE (f
) == NULL
)
4377 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4378 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4381 menu_face_changed_default
= 1;
4387 /* Update `default-frame-alist', which is used for new frames. */
4389 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4392 /* Update the current frame's parameters. */
4395 cons
= XCAR (Vparam_value_alist
);
4396 XSETCAR (cons
, param
);
4397 XSETCDR (cons
, value
);
4398 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4407 #ifdef HAVE_WINDOW_SYSTEM
4409 /* Set the `font' frame parameter of FRAME determined from `default'
4410 face attributes LFACE. If a face or fontset name is explicitely
4411 specfied in LFACE, use it as is. Otherwise, determine a font name
4412 from the other font-related atrributes of LFACE. In that case, if
4413 there's no matching font, signals an error. */
4416 set_font_frame_param (frame
, lface
)
4417 Lisp_Object frame
, lface
;
4419 struct frame
*f
= XFRAME (frame
);
4421 if (FRAME_WINDOW_P (f
))
4423 Lisp_Object font_name
;
4426 if (STRINGP (LFACE_FONT (lface
)))
4427 font_name
= LFACE_FONT (lface
);
4430 /* Choose a font name that reflects LFACE's attributes and has
4431 the registry and encoding pattern specified in the default
4432 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4433 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4435 error ("No font matches the specified attribute");
4436 font_name
= build_string (font
);
4440 f
->default_face_done_p
= 0;
4441 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4446 /* Update the corresponding face when frame parameter PARAM on frame F
4447 has been assigned the value NEW_VALUE. */
4450 update_face_from_frame_parameter (f
, param
, new_value
)
4452 Lisp_Object param
, new_value
;
4456 /* If there are no faces yet, give up. This is the case when called
4457 from Fx_create_frame, and we do the necessary things later in
4458 face-set-after-frame-defaults. */
4459 if (NILP (f
->face_alist
))
4462 /* Changing a named face means that all realized faces depending on
4463 that face are invalid. Since we cannot tell which realized faces
4464 depend on the face, make sure they are all removed. This is done
4465 by incrementing face_change_count. The next call to
4466 init_iterator will then free realized faces. */
4467 ++face_change_count
;
4468 ++windows_or_buffers_changed
;
4470 if (EQ (param
, Qforeground_color
))
4472 lface
= lface_from_face_name (f
, Qdefault
, 1);
4473 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4474 ? new_value
: Qunspecified
);
4475 realize_basic_faces (f
);
4477 else if (EQ (param
, Qbackground_color
))
4481 /* Changing the background color might change the background
4482 mode, so that we have to load new defface specs. Call
4483 frame-update-face-colors to do that. */
4484 XSETFRAME (frame
, f
);
4485 call1 (Qframe_update_face_colors
, frame
);
4487 lface
= lface_from_face_name (f
, Qdefault
, 1);
4488 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4489 ? new_value
: Qunspecified
);
4490 realize_basic_faces (f
);
4492 if (EQ (param
, Qborder_color
))
4494 lface
= lface_from_face_name (f
, Qborder
, 1);
4495 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4496 ? new_value
: Qunspecified
);
4498 else if (EQ (param
, Qcursor_color
))
4500 lface
= lface_from_face_name (f
, Qcursor
, 1);
4501 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4502 ? new_value
: Qunspecified
);
4504 else if (EQ (param
, Qmouse_color
))
4506 lface
= lface_from_face_name (f
, Qmouse
, 1);
4507 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4508 ? new_value
: Qunspecified
);
4513 /* Get the value of X resource RESOURCE, class CLASS for the display
4514 of frame FRAME. This is here because ordinary `x-get-resource'
4515 doesn't take a frame argument. */
4517 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4518 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4519 (resource
, class, frame
)
4520 Lisp_Object resource
, class, frame
;
4522 Lisp_Object value
= Qnil
;
4523 CHECK_STRING (resource
);
4524 CHECK_STRING (class);
4525 CHECK_LIVE_FRAME (frame
);
4527 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4528 resource
, class, Qnil
, Qnil
);
4534 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4535 If VALUE is "on" or "true", return t. If VALUE is "off" or
4536 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4537 error; if SIGNAL_P is zero, return 0. */
4540 face_boolean_x_resource_value (value
, signal_p
)
4544 Lisp_Object result
= make_number (0);
4546 xassert (STRINGP (value
));
4548 if (xstricmp (SDATA (value
), "on") == 0
4549 || xstricmp (SDATA (value
), "true") == 0)
4551 else if (xstricmp (SDATA (value
), "off") == 0
4552 || xstricmp (SDATA (value
), "false") == 0)
4554 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4555 result
= Qunspecified
;
4557 signal_error ("Invalid face attribute value from X resource", value
);
4563 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4564 Finternal_set_lisp_face_attribute_from_resource
,
4565 Sinternal_set_lisp_face_attribute_from_resource
,
4566 3, 4, 0, doc
: /* */)
4567 (face
, attr
, value
, frame
)
4568 Lisp_Object face
, attr
, value
, frame
;
4570 CHECK_SYMBOL (face
);
4571 CHECK_SYMBOL (attr
);
4572 CHECK_STRING (value
);
4574 if (xstricmp (SDATA (value
), "unspecified") == 0)
4575 value
= Qunspecified
;
4576 else if (EQ (attr
, QCheight
))
4578 value
= Fstring_to_number (value
, make_number (10));
4579 if (XINT (value
) <= 0)
4580 signal_error ("Invalid face height from X resource", value
);
4582 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4583 value
= face_boolean_x_resource_value (value
, 1);
4584 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4585 value
= intern (SDATA (value
));
4586 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4587 value
= face_boolean_x_resource_value (value
, 1);
4588 else if (EQ (attr
, QCunderline
)
4589 || EQ (attr
, QCoverline
)
4590 || EQ (attr
, QCstrike_through
))
4592 Lisp_Object boolean_value
;
4594 /* If the result of face_boolean_x_resource_value is t or nil,
4595 VALUE does NOT specify a color. */
4596 boolean_value
= face_boolean_x_resource_value (value
, 0);
4597 if (SYMBOLP (boolean_value
))
4598 value
= boolean_value
;
4600 else if (EQ (attr
, QCbox
))
4601 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4603 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4606 #endif /* HAVE_WINDOW_SYSTEM */
4609 /***********************************************************************
4611 ***********************************************************************/
4613 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4615 /* Make menus on frame F appear as specified by the `menu' face. */
4618 x_update_menu_appearance (f
)
4621 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4625 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4629 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4630 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4631 const char *myname
= SDATA (Vx_resource_name
);
4634 const char *popup_path
= "popup_menu";
4636 const char *popup_path
= "menu.popup";
4639 if (STRINGP (LFACE_FOREGROUND (lface
)))
4641 sprintf (line
, "%s.%s*foreground: %s",
4643 SDATA (LFACE_FOREGROUND (lface
)));
4644 XrmPutLineResource (&rdb
, line
);
4645 sprintf (line
, "%s.pane.menubar*foreground: %s",
4646 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4647 XrmPutLineResource (&rdb
, line
);
4651 if (STRINGP (LFACE_BACKGROUND (lface
)))
4653 sprintf (line
, "%s.%s*background: %s",
4655 SDATA (LFACE_BACKGROUND (lface
)));
4656 XrmPutLineResource (&rdb
, line
);
4657 sprintf (line
, "%s.pane.menubar*background: %s",
4658 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4659 XrmPutLineResource (&rdb
, line
);
4664 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4665 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4666 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4667 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4668 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4669 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4672 const char *suffix
= "List";
4674 const char *suffix
= "";
4676 sprintf (line
, "%s.pane.menubar*font%s: %s",
4677 myname
, suffix
, face
->font_name
);
4678 XrmPutLineResource (&rdb
, line
);
4679 sprintf (line
, "%s.%s*font%s: %s",
4680 myname
, popup_path
, suffix
, face
->font_name
);
4681 XrmPutLineResource (&rdb
, line
);
4685 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4686 free_frame_menubar (f
);
4690 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4693 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4694 Sface_attribute_relative_p
,
4696 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4698 Lisp_Object attribute
, value
;
4700 if (EQ (value
, Qunspecified
))
4702 else if (EQ (attribute
, QCheight
))
4703 return INTEGERP (value
) ? Qnil
: Qt
;
4708 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4710 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4711 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4712 the result will be absolute, otherwise it will be relative. */)
4713 (attribute
, value1
, value2
)
4714 Lisp_Object attribute
, value1
, value2
;
4716 if (EQ (value1
, Qunspecified
))
4718 else if (EQ (attribute
, QCheight
))
4719 return merge_face_heights (value1
, value2
, value1
, Qnil
);
4725 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4726 Sinternal_get_lisp_face_attribute
,
4728 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4729 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4730 face attribute name, signal an error.
4731 If the optional argument FRAME is given, report on face SYMBOL in that
4732 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4733 frames). If FRAME is omitted or nil, use the selected frame. */)
4734 (symbol
, keyword
, frame
)
4735 Lisp_Object symbol
, keyword
, frame
;
4737 Lisp_Object lface
, value
= Qnil
;
4739 CHECK_SYMBOL (symbol
);
4740 CHECK_SYMBOL (keyword
);
4743 lface
= lface_from_face_name (NULL
, symbol
, 1);
4747 frame
= selected_frame
;
4748 CHECK_LIVE_FRAME (frame
);
4749 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4752 if (EQ (keyword
, QCfamily
))
4753 value
= LFACE_FAMILY (lface
);
4754 else if (EQ (keyword
, QCheight
))
4755 value
= LFACE_HEIGHT (lface
);
4756 else if (EQ (keyword
, QCweight
))
4757 value
= LFACE_WEIGHT (lface
);
4758 else if (EQ (keyword
, QCslant
))
4759 value
= LFACE_SLANT (lface
);
4760 else if (EQ (keyword
, QCunderline
))
4761 value
= LFACE_UNDERLINE (lface
);
4762 else if (EQ (keyword
, QCoverline
))
4763 value
= LFACE_OVERLINE (lface
);
4764 else if (EQ (keyword
, QCstrike_through
))
4765 value
= LFACE_STRIKE_THROUGH (lface
);
4766 else if (EQ (keyword
, QCbox
))
4767 value
= LFACE_BOX (lface
);
4768 else if (EQ (keyword
, QCinverse_video
)
4769 || EQ (keyword
, QCreverse_video
))
4770 value
= LFACE_INVERSE (lface
);
4771 else if (EQ (keyword
, QCforeground
))
4772 value
= LFACE_FOREGROUND (lface
);
4773 else if (EQ (keyword
, QCbackground
))
4774 value
= LFACE_BACKGROUND (lface
);
4775 else if (EQ (keyword
, QCstipple
))
4776 value
= LFACE_STIPPLE (lface
);
4777 else if (EQ (keyword
, QCwidth
))
4778 value
= LFACE_SWIDTH (lface
);
4779 else if (EQ (keyword
, QCinherit
))
4780 value
= LFACE_INHERIT (lface
);
4781 else if (EQ (keyword
, QCfont
))
4782 value
= LFACE_FONT (lface
);
4784 signal_error ("Invalid face attribute name", keyword
);
4790 DEFUN ("internal-lisp-face-attribute-values",
4791 Finternal_lisp_face_attribute_values
,
4792 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4793 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4794 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4798 Lisp_Object result
= Qnil
;
4800 CHECK_SYMBOL (attr
);
4802 if (EQ (attr
, QCweight
)
4803 || EQ (attr
, QCslant
)
4804 || EQ (attr
, QCwidth
))
4806 /* Extract permissible symbols from tables. */
4807 struct table_entry
*table
;
4810 if (EQ (attr
, QCweight
))
4811 table
= weight_table
, dim
= DIM (weight_table
);
4812 else if (EQ (attr
, QCslant
))
4813 table
= slant_table
, dim
= DIM (slant_table
);
4815 table
= swidth_table
, dim
= DIM (swidth_table
);
4817 for (i
= 0; i
< dim
; ++i
)
4819 Lisp_Object symbol
= *table
[i
].symbol
;
4820 Lisp_Object tail
= result
;
4823 && !EQ (XCAR (tail
), symbol
))
4827 result
= Fcons (symbol
, result
);
4830 else if (EQ (attr
, QCunderline
))
4831 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4832 else if (EQ (attr
, QCoverline
))
4833 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4834 else if (EQ (attr
, QCstrike_through
))
4835 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4836 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4837 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4843 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4844 Sinternal_merge_in_global_face
, 2, 2, 0,
4845 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4846 Default face attributes override any local face attributes. */)
4848 Lisp_Object face
, frame
;
4851 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4853 CHECK_LIVE_FRAME (frame
);
4854 global_lface
= lface_from_face_name (NULL
, face
, 1);
4855 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4856 if (NILP (local_lface
))
4857 local_lface
= Finternal_make_lisp_face (face
, frame
);
4859 /* Make every specified global attribute override the local one.
4860 BEWARE!! This is only used from `face-set-after-frame-default' where
4861 the local frame is defined from default specs in `face-defface-spec'
4862 and those should be overridden by global settings. Hence the strange
4863 "global before local" priority. */
4864 lvec
= XVECTOR (local_lface
)->contents
;
4865 gvec
= XVECTOR (global_lface
)->contents
;
4866 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4867 if (! UNSPECIFIEDP (gvec
[i
]))
4874 /* The following function is implemented for compatibility with 20.2.
4875 The function is used in x-resolve-fonts when it is asked to
4876 return fonts with the same size as the font of a face. This is
4877 done in fontset.el. */
4879 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4880 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4881 If the optional argument FRAME is given, report on face FACE in that frame.
4882 If FRAME is t, report on the defaults for face FACE (for new frames).
4883 The font default for a face is either nil, or a list
4884 of the form (bold), (italic) or (bold italic).
4885 If FRAME is omitted or nil, use the selected frame. */)
4887 Lisp_Object face
, frame
;
4891 Lisp_Object result
= Qnil
;
4892 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4894 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4895 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4896 result
= Fcons (Qbold
, result
);
4898 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4899 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4900 result
= Fcons (Qitalic
, result
);
4906 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4907 int face_id
= lookup_named_face (f
, face
, 0);
4908 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4909 return face
? build_string (face
->font_name
) : Qnil
;
4914 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4915 all attributes are `equal'. Tries to be fast because this function
4916 is called quite often. */
4919 face_attr_equal_p (v1
, v2
)
4922 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4923 and the other is specified. */
4924 if (XTYPE (v1
) != XTYPE (v2
))
4933 if (SBYTES (v1
) != SBYTES (v2
))
4936 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4943 return !NILP (Fequal (v1
, v2
));
4948 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4949 all attributes are `equal'. Tries to be fast because this function
4950 is called quite often. */
4953 lface_equal_p (v1
, v2
)
4954 Lisp_Object
*v1
, *v2
;
4958 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4959 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4965 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4966 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4967 doc
: /* True if FACE1 and FACE2 are equal.
4968 If the optional argument FRAME is given, report on face FACE in that frame.
4969 If FRAME is t, report on the defaults for face FACE (for new frames).
4970 If FRAME is omitted or nil, use the selected frame. */)
4971 (face1
, face2
, frame
)
4972 Lisp_Object face1
, face2
, frame
;
4976 Lisp_Object lface1
, lface2
;
4981 /* Don't use check_x_frame here because this function is called
4982 before X frames exist. At that time, if FRAME is nil,
4983 selected_frame will be used which is the frame dumped with
4984 Emacs. That frame is not an X frame. */
4985 f
= frame_or_selected_frame (frame
, 2);
4987 lface1
= lface_from_face_name (NULL
, face1
, 1);
4988 lface2
= lface_from_face_name (NULL
, face2
, 1);
4989 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4990 XVECTOR (lface2
)->contents
);
4991 return equal_p
? Qt
: Qnil
;
4995 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4996 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4997 doc
: /* True if FACE has no attribute specified.
4998 If the optional argument FRAME is given, report on face FACE in that frame.
4999 If FRAME is t, report on the defaults for face FACE (for new frames).
5000 If FRAME is omitted or nil, use the selected frame. */)
5002 Lisp_Object face
, frame
;
5009 frame
= selected_frame
;
5010 CHECK_LIVE_FRAME (frame
);
5014 lface
= lface_from_face_name (NULL
, face
, 1);
5016 lface
= lface_from_face_name (f
, face
, 1);
5018 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5019 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5022 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5026 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5028 doc
: /* Return an alist of frame-local faces defined on FRAME.
5029 For internal use only. */)
5033 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5034 return f
->face_alist
;
5038 /* Return a hash code for Lisp string STRING with case ignored. Used
5039 below in computing a hash value for a Lisp face. */
5041 static INLINE
unsigned
5042 hash_string_case_insensitive (string
)
5045 const unsigned char *s
;
5047 xassert (STRINGP (string
));
5048 for (s
= SDATA (string
); *s
; ++s
)
5049 hash
= (hash
<< 1) ^ tolower (*s
);
5054 /* Return a hash code for face attribute vector V. */
5056 static INLINE
unsigned
5060 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5061 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5062 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5063 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5064 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5065 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5066 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5070 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5071 considering charsets/registries). They do if they specify the same
5072 family, point size, weight, width, slant, and fontset. Both LFACE1
5073 and LFACE2 must be fully-specified. */
5076 lface_same_font_attributes_p (lface1
, lface2
)
5077 Lisp_Object
*lface1
, *lface2
;
5079 xassert (lface_fully_specified_p (lface1
)
5080 && lface_fully_specified_p (lface2
));
5081 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5082 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5083 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5084 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5085 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5086 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5087 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5088 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5089 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5090 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5091 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5092 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5097 /***********************************************************************
5099 ***********************************************************************/
5101 /* Allocate and return a new realized face for Lisp face attribute
5104 static struct face
*
5105 make_realized_face (attr
)
5108 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5109 bzero (face
, sizeof *face
);
5110 face
->ascii_face
= face
;
5111 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5116 /* Free realized face FACE, including its X resources. FACE may
5120 free_realized_face (f
, face
)
5126 #ifdef HAVE_WINDOW_SYSTEM
5127 if (FRAME_WINDOW_P (f
))
5129 /* Free fontset of FACE if it is ASCII face. */
5130 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5131 free_face_fontset (f
, face
);
5134 x_free_gc (f
, face
->gc
);
5138 free_face_colors (f
, face
);
5139 x_destroy_bitmap (f
, face
->stipple
);
5141 #endif /* HAVE_WINDOW_SYSTEM */
5148 /* Prepare face FACE for subsequent display on frame F. This
5149 allocated GCs if they haven't been allocated yet or have been freed
5150 by clearing the face cache. */
5153 prepare_face_for_display (f
, face
)
5157 #ifdef HAVE_WINDOW_SYSTEM
5158 xassert (FRAME_WINDOW_P (f
));
5163 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5165 xgcv
.foreground
= face
->foreground
;
5166 xgcv
.background
= face
->background
;
5167 #ifdef HAVE_X_WINDOWS
5168 xgcv
.graphics_exposures
= False
;
5170 /* The font of FACE may be null if we couldn't load it. */
5173 #ifdef HAVE_X_WINDOWS
5174 xgcv
.font
= face
->font
->fid
;
5177 xgcv
.font
= face
->font
;
5180 xgcv
.font
= face
->font
;
5186 #ifdef HAVE_X_WINDOWS
5189 xgcv
.fill_style
= FillOpaqueStippled
;
5190 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5191 mask
|= GCFillStyle
| GCStipple
;
5194 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5197 #endif /* HAVE_WINDOW_SYSTEM */
5201 /* Returns the `distance' between the colors X and Y. */
5204 color_distance (x
, y
)
5207 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5208 Quoting from that paper:
5210 This formula has results that are very close to L*u*v* (with the
5211 modified lightness curve) and, more importantly, it is a more even
5212 algorithm: it does not have a range of colours where it suddenly
5213 gives far from optimal results.
5215 See <http://www.compuphase.com/cmetric.htm> for more info. */
5217 long r
= (x
->red
- y
->red
) >> 8;
5218 long g
= (x
->green
- y
->green
) >> 8;
5219 long b
= (x
->blue
- y
->blue
) >> 8;
5220 long r_mean
= (x
->red
+ y
->red
) >> 9;
5223 (((512 + r_mean
) * r
* r
) >> 8)
5225 + (((767 - r_mean
) * b
* b
) >> 8);
5229 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5230 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5231 COLOR1 and COLOR2 may be either strings containing the color name,
5232 or lists of the form (RED GREEN BLUE).
5233 If FRAME is unspecified or nil, the current frame is used. */)
5234 (color1
, color2
, frame
)
5235 Lisp_Object color1
, color2
, frame
;
5238 XColor cdef1
, cdef2
;
5241 frame
= selected_frame
;
5242 CHECK_LIVE_FRAME (frame
);
5245 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5246 || !STRINGP (color1
)
5247 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5248 signal_error ("Invalid color", color1
);
5249 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5250 || !STRINGP (color2
)
5251 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5252 signal_error ("Invalid color", color2
);
5254 return make_number (color_distance (&cdef1
, &cdef2
));
5258 /***********************************************************************
5260 ***********************************************************************/
5262 /* Return a new face cache for frame F. */
5264 static struct face_cache
*
5268 struct face_cache
*c
;
5271 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5272 bzero (c
, sizeof *c
);
5273 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5274 c
->buckets
= (struct face
**) xmalloc (size
);
5275 bzero (c
->buckets
, size
);
5277 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5279 c
->menu_face_changed_p
= menu_face_changed_default
;
5284 /* Clear out all graphics contexts for all realized faces, except for
5285 the basic faces. This should be done from time to time just to avoid
5286 keeping too many graphics contexts that are no longer needed. */
5290 struct face_cache
*c
;
5292 if (c
&& FRAME_WINDOW_P (c
->f
))
5294 #ifdef HAVE_WINDOW_SYSTEM
5296 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5298 struct face
*face
= c
->faces_by_id
[i
];
5299 if (face
&& face
->gc
)
5301 x_free_gc (c
->f
, face
->gc
);
5305 #endif /* HAVE_WINDOW_SYSTEM */
5310 /* Free all realized faces in face cache C, including basic faces.
5311 C may be null. If faces are freed, make sure the frame's current
5312 matrix is marked invalid, so that a display caused by an expose
5313 event doesn't try to use faces we destroyed. */
5316 free_realized_faces (c
)
5317 struct face_cache
*c
;
5322 struct frame
*f
= c
->f
;
5324 /* We must block input here because we can't process X events
5325 safely while only some faces are freed, or when the frame's
5326 current matrix still references freed faces. */
5329 for (i
= 0; i
< c
->used
; ++i
)
5331 free_realized_face (f
, c
->faces_by_id
[i
]);
5332 c
->faces_by_id
[i
] = NULL
;
5336 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5337 bzero (c
->buckets
, size
);
5339 /* Must do a thorough redisplay the next time. Mark current
5340 matrices as invalid because they will reference faces freed
5341 above. This function is also called when a frame is
5342 destroyed. In this case, the root window of F is nil. */
5343 if (WINDOWP (f
->root_window
))
5345 clear_current_matrices (f
);
5346 ++windows_or_buffers_changed
;
5354 /* Free all faces realized for multibyte characters on frame F that
5358 free_realized_multibyte_face (f
, fontset
)
5362 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5366 /* We must block input here because we can't process X events safely
5367 while only some faces are freed, or when the frame's current
5368 matrix still references freed faces. */
5371 for (i
= 0; i
< cache
->used
; i
++)
5373 face
= cache
->faces_by_id
[i
];
5375 && face
!= face
->ascii_face
5376 && face
->fontset
== fontset
)
5378 uncache_face (cache
, face
);
5379 free_realized_face (f
, face
);
5383 /* Must do a thorough redisplay the next time. Mark current
5384 matrices as invalid because they will reference faces freed
5385 above. This function is also called when a frame is destroyed.
5386 In this case, the root window of F is nil. */
5387 if (WINDOWP (f
->root_window
))
5389 clear_current_matrices (f
);
5390 ++windows_or_buffers_changed
;
5397 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5398 This is done after attributes of a named face have been changed,
5399 because we can't tell which realized faces depend on that face. */
5402 free_all_realized_faces (frame
)
5408 FOR_EACH_FRAME (rest
, frame
)
5409 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5412 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5416 /* Free face cache C and faces in it, including their X resources. */
5420 struct face_cache
*c
;
5424 free_realized_faces (c
);
5426 xfree (c
->faces_by_id
);
5432 /* Cache realized face FACE in face cache C. HASH is the hash value
5433 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5434 collision list of the face hash table of C. This is done because
5435 otherwise lookup_face would find FACE for every character, even if
5436 faces with the same attributes but for specific characters exist. */
5439 cache_face (c
, face
, hash
)
5440 struct face_cache
*c
;
5444 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5448 if (face
->fontset
>= 0)
5450 struct face
*last
= c
->buckets
[i
];
5461 c
->buckets
[i
] = face
;
5462 face
->prev
= face
->next
= NULL
;
5468 face
->next
= c
->buckets
[i
];
5470 face
->next
->prev
= face
;
5471 c
->buckets
[i
] = face
;
5474 /* Find a free slot in C->faces_by_id and use the index of the free
5475 slot as FACE->id. */
5476 for (i
= 0; i
< c
->used
; ++i
)
5477 if (c
->faces_by_id
[i
] == NULL
)
5481 /* Maybe enlarge C->faces_by_id. */
5484 if (c
->used
== c
->size
)
5487 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5488 if (new_size
== c
->size
)
5489 abort (); /* Alternatives? ++kfs */
5490 sz
= new_size
* sizeof *c
->faces_by_id
;
5491 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5498 /* Check that FACE got a unique id. */
5503 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5504 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5510 #endif /* GLYPH_DEBUG */
5512 c
->faces_by_id
[i
] = face
;
5516 /* Remove face FACE from cache C. */
5519 uncache_face (c
, face
)
5520 struct face_cache
*c
;
5523 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5526 face
->prev
->next
= face
->next
;
5528 c
->buckets
[i
] = face
->next
;
5531 face
->next
->prev
= face
->prev
;
5533 c
->faces_by_id
[face
->id
] = NULL
;
5534 if (face
->id
== c
->used
)
5539 /* Look up a realized face with face attributes ATTR in the face cache
5540 of frame F. The face will be used to display character C. Value
5541 is the ID of the face found. If no suitable face is found, realize
5542 a new one. In that case, if C is a multibyte character, BASE_FACE
5543 is a face that has the same attributes. */
5546 lookup_face (f
, attr
, c
, base_face
)
5550 struct face
*base_face
;
5552 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5557 xassert (cache
!= NULL
);
5558 check_lface_attrs (attr
);
5560 /* Look up ATTR in the face cache. */
5561 hash
= lface_hash (attr
);
5562 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5564 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5565 if (face
->hash
== hash
5566 && (!FRAME_WINDOW_P (f
)
5567 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5568 && lface_equal_p (face
->lface
, attr
))
5571 /* If not found, realize a new face. */
5573 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5576 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5578 /* When this function is called from face_for_char (in this case, C is
5579 a multibyte character), a fontset of a face returned by
5580 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5581 C) is not sutisfied. The fontset is set for this face by
5582 face_for_char later. */
5584 if (FRAME_WINDOW_P (f
))
5585 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5587 #endif /* GLYPH_DEBUG */
5593 /* Return the face id of the realized face for named face SYMBOL on
5594 frame F suitable for displaying character C. Value is -1 if the
5595 face couldn't be determined, which might happen if the default face
5596 isn't realized and cannot be realized. */
5599 lookup_named_face (f
, symbol
, c
)
5604 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5605 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5606 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5608 if (default_face
== NULL
)
5610 if (!realize_basic_faces (f
))
5612 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5615 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5616 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5617 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5619 return lookup_face (f
, attrs
, c
, NULL
);
5623 /* Return the ID of the realized ASCII face of Lisp face with ID
5624 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5627 ascii_face_of_lisp_face (f
, lface_id
)
5633 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5635 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5636 face_id
= lookup_named_face (f
, face_name
, 0);
5645 /* Return a face for charset ASCII that is like the face with id
5646 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5647 STEPS < 0 means larger. Value is the id of the face. */
5650 smaller_face (f
, face_id
, steps
)
5654 #ifdef HAVE_WINDOW_SYSTEM
5656 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5657 int pt
, last_pt
, last_height
;
5660 struct face
*new_face
;
5662 /* If not called for an X frame, just return the original face. */
5663 if (FRAME_TERMCAP_P (f
))
5666 /* Try in increments of 1/2 pt. */
5667 delta
= steps
< 0 ? 5 : -5;
5668 steps
= abs (steps
);
5670 face
= FACE_FROM_ID (f
, face_id
);
5671 bcopy (face
->lface
, attrs
, sizeof attrs
);
5672 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5673 new_face_id
= face_id
;
5674 last_height
= FONT_HEIGHT (face
->font
);
5678 /* Give up if we cannot find a font within 10pt. */
5679 && abs (last_pt
- pt
) < 100)
5681 /* Look up a face for a slightly smaller/larger font. */
5683 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5684 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5685 new_face
= FACE_FROM_ID (f
, new_face_id
);
5687 /* If height changes, count that as one step. */
5688 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5689 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5692 last_height
= FONT_HEIGHT (new_face
->font
);
5699 #else /* not HAVE_WINDOW_SYSTEM */
5703 #endif /* not HAVE_WINDOW_SYSTEM */
5707 /* Return a face for charset ASCII that is like the face with id
5708 FACE_ID on frame F, but has height HEIGHT. */
5711 face_with_height (f
, face_id
, height
)
5716 #ifdef HAVE_WINDOW_SYSTEM
5718 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5720 if (FRAME_TERMCAP_P (f
)
5724 face
= FACE_FROM_ID (f
, face_id
);
5725 bcopy (face
->lface
, attrs
, sizeof attrs
);
5726 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5727 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5728 #endif /* HAVE_WINDOW_SYSTEM */
5734 /* Return the face id of the realized face for named face SYMBOL on
5735 frame F suitable for displaying character C, and use attributes of
5736 the face FACE_ID for attributes that aren't completely specified by
5737 SYMBOL. This is like lookup_named_face, except that the default
5738 attributes come from FACE_ID, not from the default face. FACE_ID
5739 is assumed to be already realized. */
5742 lookup_derived_face (f
, symbol
, c
, face_id
)
5748 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5749 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5750 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5755 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5756 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5757 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5758 return lookup_face (f
, attrs
, c
, default_face
);
5761 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5762 Sface_attributes_as_vector
, 1, 1, 0,
5763 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5768 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5770 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5777 /***********************************************************************
5778 Face capability testing
5779 ***********************************************************************/
5782 /* If the distance (as returned by color_distance) between two colors is
5783 less than this, then they are considered the same, for determining
5784 whether a color is supported or not. The range of values is 0-65535. */
5786 #define TTY_SAME_COLOR_THRESHOLD 10000
5788 #ifdef HAVE_WINDOW_SYSTEM
5790 /* Return non-zero if all the face attributes in ATTRS are supported
5791 on the window-system frame F.
5793 The definition of `supported' is somewhat heuristic, but basically means
5794 that a face containing all the attributes in ATTRS, when merged with the
5795 default face for display, can be represented in a way that's
5797 \(1) different in appearance than the default face, and
5798 \(2) `close in spirit' to what the attributes specify, if not exact. */
5801 x_supports_face_attributes_p (f
, attrs
, def_face
)
5804 struct face
*def_face
;
5806 Lisp_Object
*def_attrs
= def_face
->lface
;
5808 /* Check that other specified attributes are different that the default
5810 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5811 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5812 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5813 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5814 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5815 def_attrs
[LFACE_INVERSE_INDEX
]))
5816 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5817 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5818 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5819 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5820 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5821 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5822 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5823 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5824 def_attrs
[LFACE_STIPPLE_INDEX
]))
5825 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5826 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5827 def_attrs
[LFACE_OVERLINE_INDEX
]))
5828 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5829 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5830 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5831 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5832 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5833 def_attrs
[LFACE_BOX_INDEX
])))
5836 /* Check font-related attributes, as those are the most commonly
5837 "unsupported" on a window-system (because of missing fonts). */
5838 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5839 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5840 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5841 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5842 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5843 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
5846 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5848 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5850 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5852 face
= FACE_FROM_ID (f
, lookup_face (f
, merged_attrs
, 0, 0));
5855 error ("cannot make face");
5857 /* If the font is the same, then not supported. */
5858 if (face
->font
== def_face
->font
)
5862 /* Everything checks out, this face is supported. */
5866 #endif /* HAVE_WINDOW_SYSTEM */
5868 /* Return non-zero if all the face attributes in ATTRS are supported
5871 The definition of `supported' is somewhat heuristic, but basically means
5872 that a face containing all the attributes in ATTRS, when merged
5873 with the default face for display, can be represented in a way that's
5875 \(1) different in appearance than the default face, and
5876 \(2) `close in spirit' to what the attributes specify, if not exact.
5878 Point (2) implies that a `:weight black' attribute will be satisfied
5879 by any terminal that can display bold, and a `:foreground "yellow"' as
5880 long as the terminal can display a yellowish color, but `:slant italic'
5881 will _not_ be satisfied by the tty display code's automatic
5882 substitution of a `dim' face for italic. */
5885 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5888 struct face
*def_face
;
5891 Lisp_Object val
, fg
, bg
;
5892 XColor fg_tty_color
, fg_std_color
;
5893 XColor bg_tty_color
, bg_std_color
;
5894 unsigned test_caps
= 0;
5895 Lisp_Object
*def_attrs
= def_face
->lface
;
5898 /* First check some easy-to-check stuff; ttys support none of the
5899 following attributes, so we can just return false if any are requested
5900 (even if `nominal' values are specified, we should still return false,
5901 as that will be the same value that the default face uses). We
5902 consider :slant unsupportable on ttys, even though the face code
5903 actually `fakes' them using a dim attribute if possible. This is
5904 because the faked result is too different from what the face
5906 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5907 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5908 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5909 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5910 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5911 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5912 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5913 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5917 /* Test for terminal `capabilities' (non-color character attributes). */
5919 /* font weight (bold/dim) */
5920 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5923 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
5925 if (weight
> XLFD_WEIGHT_MEDIUM
)
5927 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
5928 return 0; /* same as default */
5929 test_caps
= TTY_CAP_BOLD
;
5931 else if (weight
< XLFD_WEIGHT_MEDIUM
)
5933 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
5934 return 0; /* same as default */
5935 test_caps
= TTY_CAP_DIM
;
5937 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
5938 return 0; /* same as default */
5942 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5943 if (!UNSPECIFIEDP (val
))
5946 return 0; /* ttys can't use colored underlines */
5947 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5948 return 0; /* same as default */
5950 test_caps
|= TTY_CAP_UNDERLINE
;
5954 val
= attrs
[LFACE_INVERSE_INDEX
];
5955 if (!UNSPECIFIEDP (val
))
5957 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5958 return 0; /* same as default */
5960 test_caps
|= TTY_CAP_INVERSE
;
5964 /* Color testing. */
5966 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5967 we use them when calling `tty_capable_p' below, even if the face
5968 specifies no colors. */
5969 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5970 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5972 /* Check if foreground color is close enough. */
5973 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5976 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5978 if (face_attr_equal_p (fg
, def_fg
))
5979 return 0; /* same as default */
5980 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5981 return 0; /* not a valid color */
5982 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5983 > TTY_SAME_COLOR_THRESHOLD
)
5984 return 0; /* displayed color is too different */
5986 /* Make sure the color is really different than the default. */
5988 XColor def_fg_color
;
5989 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5990 && (color_distance (&fg_tty_color
, &def_fg_color
)
5991 <= TTY_SAME_COLOR_THRESHOLD
))
5996 /* Check if background color is close enough. */
5997 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
6000 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6002 if (face_attr_equal_p (bg
, def_bg
))
6003 return 0; /* same as default */
6004 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6005 return 0; /* not a valid color */
6006 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6007 > TTY_SAME_COLOR_THRESHOLD
)
6008 return 0; /* displayed color is too different */
6010 /* Make sure the color is really different than the default. */
6012 XColor def_bg_color
;
6013 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6014 && (color_distance (&bg_tty_color
, &def_bg_color
)
6015 <= TTY_SAME_COLOR_THRESHOLD
))
6020 /* If both foreground and background are requested, see if the
6021 distance between them is OK. We just check to see if the distance
6022 between the tty's foreground and background is close enough to the
6023 distance between the standard foreground and background. */
6024 if (STRINGP (fg
) && STRINGP (bg
))
6027 = (color_distance (&fg_std_color
, &bg_std_color
)
6028 - color_distance (&fg_tty_color
, &bg_tty_color
));
6029 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6030 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6035 /* See if the capabilities we selected above are supported, with the
6037 if (test_caps
!= 0 &&
6038 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6042 /* Hmmm, everything checks out, this terminal must support this face. */
6047 DEFUN ("display-supports-face-attributes-p",
6048 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6050 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6051 The optional argument DISPLAY can be a display name, a frame, or
6052 nil (meaning the selected frame's display)
6054 The definition of `supported' is somewhat heuristic, but basically means
6055 that a face containing all the attributes in ATTRIBUTES, when merged
6056 with the default face for display, can be represented in a way that's
6058 \(1) different in appearance than the default face, and
6059 \(2) `close in spirit' to what the attributes specify, if not exact.
6061 Point (2) implies that a `:weight black' attribute will be satisfied by
6062 any display that can display bold, and a `:foreground \"yellow\"' as long
6063 as it can display a yellowish color, but `:slant italic' will _not_ be
6064 satisfied by the tty display code's automatic substitution of a `dim'
6065 face for italic. */)
6066 (attributes
, display
)
6067 Lisp_Object attributes
, display
;
6072 struct face
*def_face
;
6073 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6075 if (noninteractive
|| !initialized
)
6076 /* We may not be able to access low-level face information in batch
6077 mode, or before being dumped, and this function is not going to
6078 be very useful in those cases anyway, so just give up. */
6082 frame
= selected_frame
;
6083 else if (FRAMEP (display
))
6087 /* Find any frame on DISPLAY. */
6088 Lisp_Object fl_tail
;
6091 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6093 frame
= XCAR (fl_tail
);
6094 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6095 XFRAME (frame
)->param_alist
)),
6101 CHECK_LIVE_FRAME (frame
);
6104 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6105 attrs
[i
] = Qunspecified
;
6106 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6108 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6109 if (def_face
== NULL
)
6111 if (! realize_basic_faces (f
))
6112 error ("Cannot realize default face");
6113 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6116 /* Dispatch to the appropriate handler. */
6117 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6118 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6119 #ifdef HAVE_WINDOW_SYSTEM
6121 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6124 return supports
? Qt
: Qnil
;
6128 /***********************************************************************
6130 ***********************************************************************/
6132 DEFUN ("internal-set-font-selection-order",
6133 Finternal_set_font_selection_order
,
6134 Sinternal_set_font_selection_order
, 1, 1, 0,
6135 doc
: /* Set font selection order for face font selection to ORDER.
6136 ORDER must be a list of length 4 containing the symbols `:width',
6137 `:height', `:weight', and `:slant'. Face attributes appearing
6138 first in ORDER are matched first, e.g. if `:height' appears before
6139 `:weight' in ORDER, font selection first tries to find a font with
6140 a suitable height, and then tries to match the font weight.
6147 int indices
[DIM (font_sort_order
)];
6150 bzero (indices
, sizeof indices
);
6154 CONSP (list
) && i
< DIM (indices
);
6155 list
= XCDR (list
), ++i
)
6157 Lisp_Object attr
= XCAR (list
);
6160 if (EQ (attr
, QCwidth
))
6162 else if (EQ (attr
, QCheight
))
6163 xlfd
= XLFD_POINT_SIZE
;
6164 else if (EQ (attr
, QCweight
))
6166 else if (EQ (attr
, QCslant
))
6171 if (indices
[i
] != 0)
6176 if (!NILP (list
) || i
!= DIM (indices
))
6177 signal_error ("Invalid font sort order", order
);
6178 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6179 if (indices
[i
] == 0)
6180 signal_error ("Invalid font sort order", order
);
6182 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6184 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6185 free_all_realized_faces (Qnil
);
6192 DEFUN ("internal-set-alternative-font-family-alist",
6193 Finternal_set_alternative_font_family_alist
,
6194 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6195 doc
: /* Define alternative font families to try in face font selection.
6196 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6197 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6198 be found. Value is ALIST. */)
6203 Vface_alternative_font_family_alist
= alist
;
6204 free_all_realized_faces (Qnil
);
6209 DEFUN ("internal-set-alternative-font-registry-alist",
6210 Finternal_set_alternative_font_registry_alist
,
6211 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6212 doc
: /* Define alternative font registries to try in face font selection.
6213 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6214 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6215 be found. Value is ALIST. */)
6220 Vface_alternative_font_registry_alist
= alist
;
6221 free_all_realized_faces (Qnil
);
6226 #ifdef HAVE_WINDOW_SYSTEM
6228 /* Value is non-zero if FONT is the name of a scalable font. The
6229 X11R6 XLFD spec says that point size, pixel size, and average width
6230 are zero for scalable fonts. Intlfonts contain at least one
6231 scalable font ("*-muleindian-1") for which this isn't true, so we
6232 just test average width. */
6235 font_scalable_p (font
)
6236 struct font_name
*font
;
6238 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6239 return (*s
== '0' && *(s
+ 1) == '\0')
6241 /* Windows implementation of XLFD is slightly broken for backward
6242 compatibility with previous broken versions, so test for
6243 wildcards as well as 0. */
6250 /* Ignore the difference of font point size less than this value. */
6252 #define FONT_POINT_SIZE_QUANTUM 5
6254 /* Value is non-zero if FONT1 is a better match for font attributes
6255 VALUES than FONT2. VALUES is an array of face attribute values in
6256 font sort order. COMPARE_PT_P zero means don't compare point
6257 sizes. AVGWIDTH, if not zero, is a specified font average width
6261 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6263 struct font_name
*font1
, *font2
;
6264 int compare_pt_p
, avgwidth
;
6268 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6270 int xlfd_idx
= font_sort_order
[i
];
6272 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6276 if (xlfd_idx
== XLFD_POINT_SIZE
)
6278 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6279 / font1
->rescale_ratio
));
6280 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6281 / font2
->rescale_ratio
));
6282 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6287 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6288 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6291 if (delta1
> delta2
)
6293 else if (delta1
< delta2
)
6297 /* The difference may be equal because, e.g., the face
6298 specifies `italic' but we have only `regular' and
6299 `oblique'. Prefer `oblique' in this case. */
6300 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6301 && font1
->numeric
[xlfd_idx
] > values
[i
]
6302 && font2
->numeric
[xlfd_idx
] < values
[i
])
6310 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6311 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6312 if (delta1
> delta2
)
6314 else if (delta1
< delta2
)
6320 /* We prefer a real scalable font; i.e. not what autoscaled. */
6321 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6322 && font1
->numeric
[XLFD_RESY
] > 0);
6323 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6324 && font2
->numeric
[XLFD_RESY
] > 0);
6326 if (auto_scaled_1
!= auto_scaled_2
)
6327 return auto_scaled_2
;
6330 return font1
->registry_priority
< font2
->registry_priority
;
6334 /* Value is non-zero if FONT is an exact match for face attributes in
6335 SPECIFIED. SPECIFIED is an array of face attribute values in font
6336 sort order. AVGWIDTH, if non-zero, is an average width to compare
6340 exact_face_match_p (specified
, font
, avgwidth
)
6342 struct font_name
*font
;
6347 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6348 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6351 return (i
== DIM (font_sort_order
)
6353 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6357 /* Value is the name of a scaled font, generated from scalable font
6358 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6359 Value is allocated from heap. */
6362 build_scalable_font_name (f
, font
, specified_pt
)
6364 struct font_name
*font
;
6367 char pixel_size
[20];
6369 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6372 /* If scalable font is for a specific resolution, compute
6373 the point size we must specify from the resolution of
6374 the display and the specified resolution of the font. */
6375 if (font
->numeric
[XLFD_RESY
] != 0)
6377 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6378 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
6383 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
6385 /* We may need a font of the different size. */
6386 pixel_value
*= font
->rescale_ratio
;
6388 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6389 font of the specified PIXEL_SIZE. */
6391 { /* Set point size of the font. */
6392 char point_size
[20];
6393 sprintf (point_size
, "%d", (int) pt
);
6394 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6395 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6399 /* Set pixel size. */
6400 sprintf (pixel_size
, "%d", pixel_value
);
6401 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6402 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6404 /* If font doesn't specify its resolution, use the
6405 resolution of the display. */
6406 if (font
->numeric
[XLFD_RESY
] == 0)
6409 sprintf (buffer
, "%d", (int) resy
);
6410 font
->fields
[XLFD_RESY
] = buffer
;
6411 font
->numeric
[XLFD_RESY
] = resy
;
6414 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6417 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6418 sprintf (buffer
, "%d", resx
);
6419 font
->fields
[XLFD_RESX
] = buffer
;
6420 font
->numeric
[XLFD_RESX
] = resx
;
6423 return build_font_name (font
);
6427 /* Value is non-zero if we are allowed to use scalable font FONT. We
6428 can't run a Lisp function here since this function may be called
6429 with input blocked. */
6432 may_use_scalable_font_p (font
)
6435 if (EQ (Vscalable_fonts_allowed
, Qt
))
6437 else if (CONSP (Vscalable_fonts_allowed
))
6439 Lisp_Object tail
, regexp
;
6441 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6443 regexp
= XCAR (tail
);
6444 if (STRINGP (regexp
)
6445 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6455 /* Return the name of the best matching font for face attributes ATTRS
6456 in the array of font_name structures FONTS which contains NFONTS
6457 elements. WIDTH_RATIO is a factor with which to multiply average
6458 widths if ATTRS specifies such a width.
6460 Value is a font name which is allocated from the heap. FONTS is
6461 freed by this function.
6463 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6464 indicate whether the resulting font should be drawn using overstrike
6465 to simulate bold-face. */
6468 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6471 struct font_name
*fonts
;
6474 int *needs_overstrike
;
6477 struct font_name
*best
;
6480 int exact_p
, avgwidth
;
6485 /* Make specified font attributes available in `specified',
6486 indexed by sort order. */
6487 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6489 int xlfd_idx
= font_sort_order
[i
];
6491 if (xlfd_idx
== XLFD_SWIDTH
)
6492 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6493 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6494 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6495 else if (xlfd_idx
== XLFD_WEIGHT
)
6496 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6497 else if (xlfd_idx
== XLFD_SLANT
)
6498 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6503 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6505 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6509 if (needs_overstrike
)
6510 *needs_overstrike
= 0;
6512 /* Start with the first non-scalable font in the list. */
6513 for (i
= 0; i
< nfonts
; ++i
)
6514 if (!font_scalable_p (fonts
+ i
))
6517 /* Find the best match among the non-scalable fonts. */
6522 for (i
= 1; i
< nfonts
; ++i
)
6523 if (!font_scalable_p (fonts
+ i
)
6524 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6528 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6536 /* Unless we found an exact match among non-scalable fonts, see if
6537 we can find a better match among scalable fonts. */
6540 /* A scalable font is better if
6542 1. its weight, slant, swidth attributes are better, or.
6544 2. the best non-scalable font doesn't have the required
6545 point size, and the scalable fonts weight, slant, swidth
6548 int non_scalable_has_exact_height_p
;
6550 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6551 non_scalable_has_exact_height_p
= 1;
6553 non_scalable_has_exact_height_p
= 0;
6555 for (i
= 0; i
< nfonts
; ++i
)
6556 if (font_scalable_p (fonts
+ i
))
6559 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6560 || (!non_scalable_has_exact_height_p
6561 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6563 non_scalable_has_exact_height_p
= 1;
6568 if (needs_overstrike
)
6570 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6571 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6573 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6575 /* We want a bold font, but didn't get one; try to use
6576 overstriking instead to simulate bold-face. However,
6577 don't overstrike an already-bold fontn unless the
6578 desired weight grossly exceeds the available weight. */
6579 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6580 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6582 *needs_overstrike
= 1;
6587 if (font_scalable_p (best
))
6588 font_name
= build_scalable_font_name (f
, best
, pt
);
6590 font_name
= build_font_name (best
);
6592 /* Free font_name structures. */
6593 free_font_names (fonts
, nfonts
);
6599 /* Get a list of matching fonts on frame F, considering FAMILY
6600 and alternative font families from Vface_alternative_font_registry_alist.
6602 FAMILY is the font family whose alternatives are considered.
6604 REGISTRY, if a string, specifies a font registry and encoding to
6605 match. A value of nil means include fonts of any registry and
6608 Return in *FONTS a pointer to a vector of font_name structures for
6609 the fonts matched. Value is the number of fonts found. */
6612 try_alternative_families (f
, family
, registry
, fonts
)
6614 Lisp_Object family
, registry
;
6615 struct font_name
**fonts
;
6620 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6623 /* Try alternative font families. */
6624 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6627 for (alter
= XCDR (alter
);
6628 CONSP (alter
) && nfonts
== 0;
6629 alter
= XCDR (alter
))
6631 if (STRINGP (XCAR (alter
)))
6632 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6636 /* Try all scalable fonts before giving up. */
6637 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6639 int count
= SPECPDL_INDEX ();
6640 specbind (Qscalable_fonts_allowed
, Qt
);
6641 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6642 unbind_to (count
, Qnil
);
6649 /* Get a list of matching fonts on frame F.
6651 FAMILY, if a string, specifies a font family derived from the fontset.
6652 It is only used if the face does not specify any family in ATTRS or
6653 if we cannot find any font of the face's family.
6655 REGISTRY, if a string, specifies a font registry and encoding to
6656 match. A value of nil means include fonts of any registry and
6659 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6660 Otherwise, prefer FAMILY.
6662 Return in *FONTS a pointer to a vector of font_name structures for
6663 the fonts matched. Value is the number of fonts found. */
6666 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6669 Lisp_Object family
, registry
;
6670 struct font_name
**fonts
;
6671 int prefer_face_family
;
6674 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6675 Lisp_Object try_family
;
6677 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6679 if (STRINGP (try_family
))
6680 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6683 /* When realizing the default face and a font spec does not matched
6684 exactly, Emacs looks for ones with the same registry as the
6685 default font. On the Mac, this is mac-roman, which does not work
6686 if the family is -etl-fixed, e.g. The following widens the
6687 choices and fixes that problem. */
6688 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
)
6689 && xstricmp (SDATA (registry
), "mac-roman") == 0)
6690 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6693 if (EQ (try_family
, family
))
6694 family
= face_family
;
6696 if (nfonts
== 0 && STRINGP (family
))
6697 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6699 /* Try font family of the default face or "fixed". */
6702 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6704 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6706 family
= build_string ("fixed");
6707 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6710 /* Try any family with the given registry. */
6712 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6718 /* Return the fontset id of the base fontset name or alias name given
6719 by the fontset attribute of ATTRS. Value is -1 if the fontset
6720 attribute of ATTRS doesn't name a fontset. */
6723 face_fontset (attrs
)
6728 name
= attrs
[LFACE_FONT_INDEX
];
6729 if (!STRINGP (name
))
6731 return fs_query_fontset (name
, 0);
6735 /* Choose a name of font to use on frame F to display character C with
6736 Lisp face attributes specified by ATTRS. The font name is
6737 determined by the font-related attributes in ATTRS and the name
6738 pattern for C in FONTSET. Value is the font name which is
6739 allocated from the heap and must be freed by the caller, or NULL if
6740 we can get no information about the font name of C. It is assured
6741 that we always get some information for a single byte
6744 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6745 indicate whether the resulting font should be drawn using overstrike
6746 to simulate bold-face. */
6749 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6753 int *needs_overstrike
;
6755 Lisp_Object pattern
;
6756 char *font_name
= NULL
;
6757 struct font_name
*fonts
;
6758 int nfonts
, width_ratio
;
6760 if (needs_overstrike
)
6761 *needs_overstrike
= 0;
6763 /* Get (foundry and) family name and registry (and encoding) name of
6765 pattern
= fontset_font_pattern (f
, fontset
, c
);
6768 xassert (!SINGLE_BYTE_CHAR_P (c
));
6772 /* If what we got is a name pattern, return it. */
6773 if (STRINGP (pattern
))
6774 return xstrdup (SDATA (pattern
));
6776 /* Get a list of fonts matching that pattern and choose the
6777 best match for the specified face attributes from it. */
6778 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6779 (SINGLE_BYTE_CHAR_P (c
)
6780 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6781 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6783 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6784 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6789 #endif /* HAVE_WINDOW_SYSTEM */
6793 /***********************************************************************
6795 ***********************************************************************/
6797 /* Realize basic faces on frame F. Value is zero if frame parameters
6798 of F don't contain enough information needed to realize the default
6802 realize_basic_faces (f
)
6806 int count
= SPECPDL_INDEX ();
6808 /* Block input here so that we won't be surprised by an X expose
6809 event, for instance, without having the faces set up. */
6811 specbind (Qscalable_fonts_allowed
, Qt
);
6813 if (realize_default_face (f
))
6815 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6816 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6817 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6818 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6819 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6820 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6821 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6822 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6823 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6824 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6826 /* Reflect changes in the `menu' face in menu bars. */
6827 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6829 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6830 #ifdef USE_X_TOOLKIT
6831 if (FRAME_WINDOW_P (f
))
6832 x_update_menu_appearance (f
);
6839 unbind_to (count
, Qnil
);
6845 /* Realize the default face on frame F. If the face is not fully
6846 specified, make it fully-specified. Attributes of the default face
6847 that are not explicitly specified are taken from frame parameters. */
6850 realize_default_face (f
)
6853 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6855 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6856 Lisp_Object frame_font
;
6859 /* If the `default' face is not yet known, create it. */
6860 lface
= lface_from_face_name (f
, Qdefault
, 0);
6864 XSETFRAME (frame
, f
);
6865 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6869 #ifdef HAVE_WINDOW_SYSTEM
6870 if (FRAME_WINDOW_P (f
))
6872 /* Set frame_font to the value of the `font' frame parameter. */
6873 frame_font
= Fassq (Qfont
, f
->param_alist
);
6874 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6875 frame_font
= XCDR (frame_font
);
6876 set_lface_from_font_name (f
, lface
, frame_font
,
6877 f
->default_face_done_p
, 1);
6878 f
->default_face_done_p
= 1;
6880 #endif /* HAVE_WINDOW_SYSTEM */
6882 if (!FRAME_WINDOW_P (f
))
6884 LFACE_FAMILY (lface
) = build_string ("default");
6885 LFACE_SWIDTH (lface
) = Qnormal
;
6886 LFACE_HEIGHT (lface
) = make_number (1);
6887 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6888 LFACE_WEIGHT (lface
) = Qnormal
;
6889 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6890 LFACE_SLANT (lface
) = Qnormal
;
6891 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6894 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6895 LFACE_UNDERLINE (lface
) = Qnil
;
6897 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6898 LFACE_OVERLINE (lface
) = Qnil
;
6900 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6901 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6903 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6904 LFACE_BOX (lface
) = Qnil
;
6906 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6907 LFACE_INVERSE (lface
) = Qnil
;
6909 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6911 /* This function is called so early that colors are not yet
6912 set in the frame parameter list. */
6913 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6915 if (CONSP (color
) && STRINGP (XCDR (color
)))
6916 LFACE_FOREGROUND (lface
) = XCDR (color
);
6917 else if (FRAME_WINDOW_P (f
))
6919 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6920 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6925 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6927 /* This function is called so early that colors are not yet
6928 set in the frame parameter list. */
6929 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6930 if (CONSP (color
) && STRINGP (XCDR (color
)))
6931 LFACE_BACKGROUND (lface
) = XCDR (color
);
6932 else if (FRAME_WINDOW_P (f
))
6934 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6935 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6940 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6941 LFACE_STIPPLE (lface
) = Qnil
;
6943 /* Realize the face; it must be fully-specified now. */
6944 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6945 check_lface (lface
);
6946 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6947 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6952 /* Realize basic faces other than the default face in face cache C.
6953 SYMBOL is the face name, ID is the face id the realized face must
6954 have. The default face must have been realized already. */
6957 realize_named_face (f
, symbol
, id
)
6962 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6963 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6964 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6965 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6966 struct face
*new_face
;
6968 /* The default face must exist and be fully specified. */
6969 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6970 check_lface_attrs (attrs
);
6971 xassert (lface_fully_specified_p (attrs
));
6973 /* If SYMBOL isn't know as a face, create it. */
6977 XSETFRAME (frame
, f
);
6978 lface
= Finternal_make_lisp_face (symbol
, frame
);
6981 /* Merge SYMBOL's face with the default face. */
6982 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6983 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
6985 /* Realize the face. */
6986 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6990 /* Realize the fully-specified face with attributes ATTRS in face
6991 cache CACHE for character C. If C is a multibyte character,
6992 BASE_FACE is a face that has the same attributes. Otherwise,
6993 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6994 ID of face to remove before caching the new face. Value is a
6995 pointer to the newly created realized face. */
6997 static struct face
*
6998 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6999 struct face_cache
*cache
;
7002 struct face
*base_face
;
7007 /* LFACE must be fully specified. */
7008 xassert (cache
!= NULL
);
7009 check_lface_attrs (attrs
);
7011 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7013 /* Remove the former face. */
7014 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7015 uncache_face (cache
, former_face
);
7016 free_realized_face (cache
->f
, former_face
);
7019 if (FRAME_WINDOW_P (cache
->f
))
7020 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7021 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7022 face
= realize_tty_face (cache
, attrs
, c
);
7023 else if (FRAME_INITIAL_P (cache
->f
))
7025 /* Create a dummy face. */
7026 face
= make_realized_face (attrs
);
7031 /* Insert the new face. */
7032 cache_face (cache
, face
, lface_hash (attrs
));
7033 #ifdef HAVE_WINDOW_SYSTEM
7034 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7035 load_face_font (cache
->f
, face
, c
);
7036 #endif /* HAVE_WINDOW_SYSTEM */
7041 /* Realize the fully-specified face with attributes ATTRS in face
7042 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7043 a multibyte character, BASE_FACE is a face that has the same
7044 attributes. Otherwise, BASE_FACE is ignored. If the new face
7045 doesn't share font with the default face, a fontname is allocated
7046 from the heap and set in `font_name' of the new face, but it is not
7047 yet loaded here. Value is a pointer to the newly created realized
7050 static struct face
*
7051 realize_x_face (cache
, attrs
, c
, base_face
)
7052 struct face_cache
*cache
;
7055 struct face
*base_face
;
7057 #ifdef HAVE_WINDOW_SYSTEM
7058 struct face
*face
, *default_face
;
7060 Lisp_Object stipple
, overline
, strike_through
, box
;
7062 xassert (FRAME_WINDOW_P (cache
->f
));
7063 xassert (SINGLE_BYTE_CHAR_P (c
)
7066 /* Allocate a new realized face. */
7067 face
= make_realized_face (attrs
);
7071 /* If C is a multibyte character, we share all face attirbutes with
7072 BASE_FACE including the realized fontset. But, we must load a
7074 if (!SINGLE_BYTE_CHAR_P (c
))
7076 bcopy (base_face
, face
, sizeof *face
);
7079 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7080 face
->colors_copied_bitwise_p
= 1;
7082 /* to force realize_face to load font */
7087 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7089 /* Determine the font to use. Most of the time, the font will be
7090 the same as the font of the default face, so try that first. */
7091 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7093 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7094 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7096 face
->font
= default_face
->font
;
7097 face
->fontset
= default_face
->fontset
;
7098 face
->font_info_id
= default_face
->font_info_id
;
7099 face
->font_name
= default_face
->font_name
;
7100 face
->ascii_face
= face
;
7102 /* But, as we can't share the fontset, make a new realized
7103 fontset that has the same base fontset as of the default
7106 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7110 /* If the face attribute ATTRS specifies a fontset, use it as
7111 the base of a new realized fontset. Otherwise, use the same
7112 base fontset as of the default face. The base determines
7113 registry and encoding of a font. It may also determine
7114 foundry and family. The other fields of font name pattern
7115 are constructed from ATTRS. */
7116 int fontset
= face_fontset (attrs
);
7118 if ((fontset
== -1) && default_face
)
7119 fontset
= default_face
->fontset
;
7120 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7121 face
->font
= NULL
; /* to force realize_face to load font */
7124 /* Load colors, and set remaining attributes. */
7126 load_face_colors (f
, face
, attrs
);
7129 box
= attrs
[LFACE_BOX_INDEX
];
7132 /* A simple box of line width 1 drawn in color given by
7134 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7136 face
->box
= FACE_SIMPLE_BOX
;
7137 face
->box_line_width
= 1;
7139 else if (INTEGERP (box
))
7141 /* Simple box of specified line width in foreground color of the
7143 xassert (XINT (box
) != 0);
7144 face
->box
= FACE_SIMPLE_BOX
;
7145 face
->box_line_width
= XINT (box
);
7146 face
->box_color
= face
->foreground
;
7147 face
->box_color_defaulted_p
= 1;
7149 else if (CONSP (box
))
7151 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7152 being one of `raised' or `sunken'. */
7153 face
->box
= FACE_SIMPLE_BOX
;
7154 face
->box_color
= face
->foreground
;
7155 face
->box_color_defaulted_p
= 1;
7156 face
->box_line_width
= 1;
7160 Lisp_Object keyword
, value
;
7162 keyword
= XCAR (box
);
7170 if (EQ (keyword
, QCline_width
))
7172 if (INTEGERP (value
) && XINT (value
) != 0)
7173 face
->box_line_width
= XINT (value
);
7175 else if (EQ (keyword
, QCcolor
))
7177 if (STRINGP (value
))
7179 face
->box_color
= load_color (f
, face
, value
,
7181 face
->use_box_color_for_shadows_p
= 1;
7184 else if (EQ (keyword
, QCstyle
))
7186 if (EQ (value
, Qreleased_button
))
7187 face
->box
= FACE_RAISED_BOX
;
7188 else if (EQ (value
, Qpressed_button
))
7189 face
->box
= FACE_SUNKEN_BOX
;
7194 /* Text underline, overline, strike-through. */
7196 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7198 /* Use default color (same as foreground color). */
7199 face
->underline_p
= 1;
7200 face
->underline_defaulted_p
= 1;
7201 face
->underline_color
= 0;
7203 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7205 /* Use specified color. */
7206 face
->underline_p
= 1;
7207 face
->underline_defaulted_p
= 0;
7208 face
->underline_color
7209 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7210 LFACE_UNDERLINE_INDEX
);
7212 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7214 face
->underline_p
= 0;
7215 face
->underline_defaulted_p
= 0;
7216 face
->underline_color
= 0;
7219 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7220 if (STRINGP (overline
))
7222 face
->overline_color
7223 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7224 LFACE_OVERLINE_INDEX
);
7225 face
->overline_p
= 1;
7227 else if (EQ (overline
, Qt
))
7229 face
->overline_color
= face
->foreground
;
7230 face
->overline_color_defaulted_p
= 1;
7231 face
->overline_p
= 1;
7234 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7235 if (STRINGP (strike_through
))
7237 face
->strike_through_color
7238 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7239 LFACE_STRIKE_THROUGH_INDEX
);
7240 face
->strike_through_p
= 1;
7242 else if (EQ (strike_through
, Qt
))
7244 face
->strike_through_color
= face
->foreground
;
7245 face
->strike_through_color_defaulted_p
= 1;
7246 face
->strike_through_p
= 1;
7249 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7250 if (!NILP (stipple
))
7251 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7253 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7255 #endif /* HAVE_WINDOW_SYSTEM */
7259 /* Map a specified color of face FACE on frame F to a tty color index.
7260 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7261 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7262 default foreground/background colors. */
7265 map_tty_color (f
, face
, idx
, defaulted
)
7268 enum lface_attribute_index idx
;
7271 Lisp_Object frame
, color
, def
;
7272 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7273 unsigned long default_pixel
, default_other_pixel
, pixel
;
7275 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7279 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7280 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7284 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7285 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7288 XSETFRAME (frame
, f
);
7289 color
= face
->lface
[idx
];
7293 && CONSP (Vtty_defined_color_alist
)
7294 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7297 /* Associations in tty-defined-color-alist are of the form
7298 (NAME INDEX R G B). We need the INDEX part. */
7299 pixel
= XINT (XCAR (XCDR (def
)));
7302 if (pixel
== default_pixel
&& STRINGP (color
))
7304 pixel
= load_color (f
, face
, color
, idx
);
7306 #if defined (MSDOS) || defined (WINDOWSNT)
7307 /* If the foreground of the default face is the default color,
7308 use the foreground color defined by the frame. */
7310 if (FRAME_MSDOS_P (f
))
7313 if (pixel
== default_pixel
7314 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7317 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7319 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7320 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7323 else if (pixel
== default_other_pixel
)
7326 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7328 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7329 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7335 #endif /* MSDOS or WINDOWSNT */
7339 face
->foreground
= pixel
;
7341 face
->background
= pixel
;
7345 /* Realize the fully-specified face with attributes ATTRS in face
7346 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7347 pointer to the newly created realized face. */
7349 static struct face
*
7350 realize_tty_face (cache
, attrs
, c
)
7351 struct face_cache
*cache
;
7357 int face_colors_defaulted
= 0;
7358 struct frame
*f
= cache
->f
;
7360 /* Frame must be a termcap frame. */
7361 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7363 /* Allocate a new realized face. */
7364 face
= make_realized_face (attrs
);
7365 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7367 /* Map face attributes to TTY appearances. We map slant to
7368 dimmed text because we want italic text to appear differently
7369 and because dimmed text is probably used infrequently. */
7370 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7371 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7373 if (weight
> XLFD_WEIGHT_MEDIUM
)
7374 face
->tty_bold_p
= 1;
7375 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7376 face
->tty_dim_p
= 1;
7377 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7378 face
->tty_underline_p
= 1;
7379 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7380 face
->tty_reverse_p
= 1;
7382 /* Map color names to color indices. */
7383 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7384 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7386 /* Swap colors if face is inverse-video. If the colors are taken
7387 from the frame colors, they are already inverted, since the
7388 frame-creation function calls x-handle-reverse-video. */
7389 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7391 unsigned long tem
= face
->foreground
;
7392 face
->foreground
= face
->background
;
7393 face
->background
= tem
;
7396 if (tty_suppress_bold_inverse_default_colors_p
7398 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7399 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7400 face
->tty_bold_p
= 0;
7406 DEFUN ("tty-suppress-bold-inverse-default-colors",
7407 Ftty_suppress_bold_inverse_default_colors
,
7408 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7409 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7410 SUPPRESS non-nil means suppress it.
7411 This affects bold faces on TTYs whose foreground is the default background
7412 color of the display and whose background is the default foreground color.
7413 For such faces, the bold face attribute is ignored if this variable
7416 Lisp_Object suppress
;
7418 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7419 ++face_change_count
;
7425 /***********************************************************************
7427 ***********************************************************************/
7429 /* Return the ID of the face to use to display character CH with face
7430 property PROP on frame F in current_buffer. */
7433 compute_char_face (f
, ch
, prop
)
7440 if (NILP (current_buffer
->enable_multibyte_characters
))
7445 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7446 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7450 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7451 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7452 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7453 merge_face_ref (f
, prop
, attrs
, 1, 0);
7454 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7460 /* Return the face ID associated with buffer position POS for
7461 displaying ASCII characters. Return in *ENDPTR the position at
7462 which a different face is needed, as far as text properties and
7463 overlays are concerned. W is a window displaying current_buffer.
7465 REGION_BEG, REGION_END delimit the region, so it can be
7468 LIMIT is a position not to scan beyond. That is to limit the time
7469 this function can take.
7471 If MOUSE is non-zero, use the character's mouse-face, not its face.
7473 The face returned is suitable for displaying ASCII characters. */
7476 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7477 endptr
, limit
, mouse
)
7480 int region_beg
, region_end
;
7485 struct frame
*f
= XFRAME (w
->frame
);
7486 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7487 Lisp_Object prop
, position
;
7489 Lisp_Object
*overlay_vec
;
7492 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7493 Lisp_Object limit1
, end
;
7494 struct face
*default_face
;
7496 /* W must display the current buffer. We could write this function
7497 to use the frame and buffer of W, but right now it doesn't. */
7498 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7500 XSETFRAME (frame
, f
);
7501 XSETFASTINT (position
, pos
);
7504 if (pos
< region_beg
&& region_beg
< endpos
)
7505 endpos
= region_beg
;
7507 /* Get the `face' or `mouse_face' text property at POS, and
7508 determine the next position at which the property changes. */
7509 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7510 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7511 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7513 endpos
= XINT (end
);
7515 /* Look at properties from overlays. */
7519 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7520 if (next_overlay
< endpos
)
7521 endpos
= next_overlay
;
7526 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7528 /* Optimize common cases where we can use the default face. */
7531 && !(pos
>= region_beg
&& pos
< region_end
))
7532 return DEFAULT_FACE_ID
;
7534 /* Begin with attributes from the default face. */
7535 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7537 /* Merge in attributes specified via text properties. */
7539 merge_face_ref (f
, prop
, attrs
, 1, 0);
7541 /* Now merge the overlay data. */
7542 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7543 for (i
= 0; i
< noverlays
; i
++)
7548 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7550 merge_face_ref (f
, prop
, attrs
, 1, 0);
7552 oend
= OVERLAY_END (overlay_vec
[i
]);
7553 oendpos
= OVERLAY_POSITION (oend
);
7554 if (oendpos
< endpos
)
7558 /* If in the region, merge in the region face. */
7559 if (pos
>= region_beg
&& pos
< region_end
)
7561 merge_named_face (f
, Qregion
, attrs
, 0);
7563 if (region_end
< endpos
)
7564 endpos
= region_end
;
7569 /* Look up a realized face with the given face attributes,
7570 or realize a new one for ASCII characters. */
7571 return lookup_face (f
, attrs
, 0, NULL
);
7575 /* Compute the face at character position POS in Lisp string STRING on
7576 window W, for ASCII characters.
7578 If STRING is an overlay string, it comes from position BUFPOS in
7579 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7580 not an overlay string. W must display the current buffer.
7581 REGION_BEG and REGION_END give the start and end positions of the
7582 region; both are -1 if no region is visible.
7584 BASE_FACE_ID is the id of a face to merge with. For strings coming
7585 from overlays or the `display' property it is the face at BUFPOS.
7587 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7589 Set *ENDPTR to the next position where to check for faces in
7590 STRING; -1 if the face is constant from POS to the end of the
7593 Value is the id of the face to use. The face returned is suitable
7594 for displaying ASCII characters. */
7597 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7598 region_end
, endptr
, base_face_id
, mouse_p
)
7602 int region_beg
, region_end
;
7604 enum face_id base_face_id
;
7607 Lisp_Object prop
, position
, end
, limit
;
7608 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7609 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7610 struct face
*base_face
;
7611 int multibyte_p
= STRING_MULTIBYTE (string
);
7612 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7614 /* Get the value of the face property at the current position within
7615 STRING. Value is nil if there is no face property. */
7616 XSETFASTINT (position
, pos
);
7617 prop
= Fget_text_property (position
, prop_name
, string
);
7619 /* Get the next position at which to check for faces. Value of end
7620 is nil if face is constant all the way to the end of the string.
7621 Otherwise it is a string position where to check faces next.
7622 Limit is the maximum position up to which to check for property
7623 changes in Fnext_single_property_change. Strings are usually
7624 short, so set the limit to the end of the string. */
7625 XSETFASTINT (limit
, SCHARS (string
));
7626 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7628 *endptr
= XFASTINT (end
);
7632 base_face
= FACE_FROM_ID (f
, base_face_id
);
7633 xassert (base_face
);
7635 /* Optimize the default case that there is no face property and we
7636 are not in the region. */
7638 && (base_face_id
!= DEFAULT_FACE_ID
7639 /* BUFPOS <= 0 means STRING is not an overlay string, so
7640 that the region doesn't have to be taken into account. */
7642 || bufpos
< region_beg
7643 || bufpos
>= region_end
)
7645 /* We can't realize faces for different charsets differently
7646 if we don't have fonts, so we can stop here if not working
7647 on a window-system frame. */
7648 || !FRAME_WINDOW_P (f
)
7649 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7650 return base_face
->id
;
7652 /* Begin with attributes from the base face. */
7653 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7655 /* Merge in attributes specified via text properties. */
7657 merge_face_ref (f
, prop
, attrs
, 1, 0);
7659 /* If in the region, merge in the region face. */
7661 && bufpos
>= region_beg
7662 && bufpos
< region_end
)
7663 merge_named_face (f
, Qregion
, attrs
, 0);
7665 /* Look up a realized face with the given face attributes,
7666 or realize a new one for ASCII characters. */
7667 return lookup_face (f
, attrs
, 0, NULL
);
7672 /***********************************************************************
7674 ***********************************************************************/
7678 /* Print the contents of the realized face FACE to stderr. */
7681 dump_realized_face (face
)
7684 fprintf (stderr
, "ID: %d\n", face
->id
);
7685 #ifdef HAVE_X_WINDOWS
7686 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7688 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7690 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7691 fprintf (stderr
, "background: 0x%lx (%s)\n",
7693 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7694 fprintf (stderr
, "font_name: %s (%s)\n",
7696 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7697 #ifdef HAVE_X_WINDOWS
7698 fprintf (stderr
, "font = %p\n", face
->font
);
7700 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7701 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7702 fprintf (stderr
, "underline: %d (%s)\n",
7704 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7705 fprintf (stderr
, "hash: %d\n", face
->hash
);
7706 fprintf (stderr
, "charset: %d\n", face
->charset
);
7710 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7718 fprintf (stderr
, "font selection order: ");
7719 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7720 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7721 fprintf (stderr
, "\n");
7723 fprintf (stderr
, "alternative fonts: ");
7724 debug_print (Vface_alternative_font_family_alist
);
7725 fprintf (stderr
, "\n");
7727 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7728 Fdump_face (make_number (i
));
7734 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7736 error ("Not a valid face");
7737 dump_realized_face (face
);
7744 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7745 0, 0, 0, doc
: /* */)
7748 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7749 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7750 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7754 #endif /* GLYPH_DEBUG != 0 */
7758 /***********************************************************************
7760 ***********************************************************************/
7765 Qface
= intern ("face");
7767 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7768 staticpro (&Qbitmap_spec_p
);
7769 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7770 staticpro (&Qframe_update_face_colors
);
7772 /* Lisp face attribute keywords. */
7773 QCfamily
= intern (":family");
7774 staticpro (&QCfamily
);
7775 QCheight
= intern (":height");
7776 staticpro (&QCheight
);
7777 QCweight
= intern (":weight");
7778 staticpro (&QCweight
);
7779 QCslant
= intern (":slant");
7780 staticpro (&QCslant
);
7781 QCunderline
= intern (":underline");
7782 staticpro (&QCunderline
);
7783 QCinverse_video
= intern (":inverse-video");
7784 staticpro (&QCinverse_video
);
7785 QCreverse_video
= intern (":reverse-video");
7786 staticpro (&QCreverse_video
);
7787 QCforeground
= intern (":foreground");
7788 staticpro (&QCforeground
);
7789 QCbackground
= intern (":background");
7790 staticpro (&QCbackground
);
7791 QCstipple
= intern (":stipple");;
7792 staticpro (&QCstipple
);
7793 QCwidth
= intern (":width");
7794 staticpro (&QCwidth
);
7795 QCfont
= intern (":font");
7796 staticpro (&QCfont
);
7797 QCbold
= intern (":bold");
7798 staticpro (&QCbold
);
7799 QCitalic
= intern (":italic");
7800 staticpro (&QCitalic
);
7801 QCoverline
= intern (":overline");
7802 staticpro (&QCoverline
);
7803 QCstrike_through
= intern (":strike-through");
7804 staticpro (&QCstrike_through
);
7805 QCbox
= intern (":box");
7807 QCinherit
= intern (":inherit");
7808 staticpro (&QCinherit
);
7810 /* Symbols used for Lisp face attribute values. */
7811 QCcolor
= intern (":color");
7812 staticpro (&QCcolor
);
7813 QCline_width
= intern (":line-width");
7814 staticpro (&QCline_width
);
7815 QCstyle
= intern (":style");
7816 staticpro (&QCstyle
);
7817 Qreleased_button
= intern ("released-button");
7818 staticpro (&Qreleased_button
);
7819 Qpressed_button
= intern ("pressed-button");
7820 staticpro (&Qpressed_button
);
7821 Qnormal
= intern ("normal");
7822 staticpro (&Qnormal
);
7823 Qultra_light
= intern ("ultra-light");
7824 staticpro (&Qultra_light
);
7825 Qextra_light
= intern ("extra-light");
7826 staticpro (&Qextra_light
);
7827 Qlight
= intern ("light");
7828 staticpro (&Qlight
);
7829 Qsemi_light
= intern ("semi-light");
7830 staticpro (&Qsemi_light
);
7831 Qsemi_bold
= intern ("semi-bold");
7832 staticpro (&Qsemi_bold
);
7833 Qbold
= intern ("bold");
7835 Qextra_bold
= intern ("extra-bold");
7836 staticpro (&Qextra_bold
);
7837 Qultra_bold
= intern ("ultra-bold");
7838 staticpro (&Qultra_bold
);
7839 Qoblique
= intern ("oblique");
7840 staticpro (&Qoblique
);
7841 Qitalic
= intern ("italic");
7842 staticpro (&Qitalic
);
7843 Qreverse_oblique
= intern ("reverse-oblique");
7844 staticpro (&Qreverse_oblique
);
7845 Qreverse_italic
= intern ("reverse-italic");
7846 staticpro (&Qreverse_italic
);
7847 Qultra_condensed
= intern ("ultra-condensed");
7848 staticpro (&Qultra_condensed
);
7849 Qextra_condensed
= intern ("extra-condensed");
7850 staticpro (&Qextra_condensed
);
7851 Qcondensed
= intern ("condensed");
7852 staticpro (&Qcondensed
);
7853 Qsemi_condensed
= intern ("semi-condensed");
7854 staticpro (&Qsemi_condensed
);
7855 Qsemi_expanded
= intern ("semi-expanded");
7856 staticpro (&Qsemi_expanded
);
7857 Qexpanded
= intern ("expanded");
7858 staticpro (&Qexpanded
);
7859 Qextra_expanded
= intern ("extra-expanded");
7860 staticpro (&Qextra_expanded
);
7861 Qultra_expanded
= intern ("ultra-expanded");
7862 staticpro (&Qultra_expanded
);
7863 Qbackground_color
= intern ("background-color");
7864 staticpro (&Qbackground_color
);
7865 Qforeground_color
= intern ("foreground-color");
7866 staticpro (&Qforeground_color
);
7867 Qunspecified
= intern ("unspecified");
7868 staticpro (&Qunspecified
);
7870 Qface_alias
= intern ("face-alias");
7871 staticpro (&Qface_alias
);
7872 Qdefault
= intern ("default");
7873 staticpro (&Qdefault
);
7874 Qtool_bar
= intern ("tool-bar");
7875 staticpro (&Qtool_bar
);
7876 Qregion
= intern ("region");
7877 staticpro (&Qregion
);
7878 Qfringe
= intern ("fringe");
7879 staticpro (&Qfringe
);
7880 Qheader_line
= intern ("header-line");
7881 staticpro (&Qheader_line
);
7882 Qscroll_bar
= intern ("scroll-bar");
7883 staticpro (&Qscroll_bar
);
7884 Qmenu
= intern ("menu");
7886 Qcursor
= intern ("cursor");
7887 staticpro (&Qcursor
);
7888 Qborder
= intern ("border");
7889 staticpro (&Qborder
);
7890 Qmouse
= intern ("mouse");
7891 staticpro (&Qmouse
);
7892 Qmode_line_inactive
= intern ("mode-line-inactive");
7893 staticpro (&Qmode_line_inactive
);
7894 Qtty_color_desc
= intern ("tty-color-desc");
7895 staticpro (&Qtty_color_desc
);
7896 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7897 staticpro (&Qtty_color_standard_values
);
7898 Qtty_color_by_index
= intern ("tty-color-by-index");
7899 staticpro (&Qtty_color_by_index
);
7900 Qtty_color_alist
= intern ("tty-color-alist");
7901 staticpro (&Qtty_color_alist
);
7902 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7903 staticpro (&Qscalable_fonts_allowed
);
7905 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7906 staticpro (&Vparam_value_alist
);
7907 Vface_alternative_font_family_alist
= Qnil
;
7908 staticpro (&Vface_alternative_font_family_alist
);
7909 Vface_alternative_font_registry_alist
= Qnil
;
7910 staticpro (&Vface_alternative_font_registry_alist
);
7912 defsubr (&Sinternal_make_lisp_face
);
7913 defsubr (&Sinternal_lisp_face_p
);
7914 defsubr (&Sinternal_set_lisp_face_attribute
);
7915 #ifdef HAVE_WINDOW_SYSTEM
7916 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7918 defsubr (&Scolor_gray_p
);
7919 defsubr (&Scolor_supported_p
);
7920 defsubr (&Sface_attribute_relative_p
);
7921 defsubr (&Smerge_face_attribute
);
7922 defsubr (&Sinternal_get_lisp_face_attribute
);
7923 defsubr (&Sinternal_lisp_face_attribute_values
);
7924 defsubr (&Sinternal_lisp_face_equal_p
);
7925 defsubr (&Sinternal_lisp_face_empty_p
);
7926 defsubr (&Sinternal_copy_lisp_face
);
7927 defsubr (&Sinternal_merge_in_global_face
);
7928 defsubr (&Sface_font
);
7929 defsubr (&Sframe_face_alist
);
7930 defsubr (&Sdisplay_supports_face_attributes_p
);
7931 defsubr (&Scolor_distance
);
7932 defsubr (&Sinternal_set_font_selection_order
);
7933 defsubr (&Sinternal_set_alternative_font_family_alist
);
7934 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7935 defsubr (&Sface_attributes_as_vector
);
7937 defsubr (&Sdump_face
);
7938 defsubr (&Sshow_face_resources
);
7939 #endif /* GLYPH_DEBUG */
7940 defsubr (&Sclear_face_cache
);
7941 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7943 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7944 defsubr (&Sdump_colors
);
7947 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7948 doc
: /* *Limit for font matching.
7949 If an integer > 0, font matching functions won't load more than
7950 that number of fonts when searching for a matching font. */);
7951 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7953 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7954 doc
: /* List of global face definitions (for internal use only.) */);
7955 Vface_new_frame_defaults
= Qnil
;
7957 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7958 doc
: /* *Default stipple pattern used on monochrome displays.
7959 This stipple pattern is used on monochrome displays
7960 instead of shades of gray for a face background color.
7961 See `set-face-stipple' for possible values for this variable. */);
7962 Vface_default_stipple
= build_string ("gray3");
7964 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7965 doc
: /* An alist of defined terminal colors and their RGB values. */);
7966 Vtty_defined_color_alist
= Qnil
;
7968 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7969 doc
: /* Allowed scalable fonts.
7970 A value of nil means don't allow any scalable fonts.
7971 A value of t means allow any scalable font.
7972 Otherwise, value must be a list of regular expressions. A font may be
7973 scaled if its name matches a regular expression in the list.
7974 Note that if value is nil, a scalable font might still be used, if no
7975 other font of the appropriate family and registry is available. */);
7976 Vscalable_fonts_allowed
= Qnil
;
7978 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7979 doc
: /* List of ignored fonts.
7980 Each element is a regular expression that matches names of fonts to
7982 Vface_ignored_fonts
= Qnil
;
7984 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7985 doc
: /* Alist of fonts vs the rescaling factors.
7986 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7987 FONT-NAME-PATTERN is a regular expression matching a font name, and
7988 RESCALE-RATIO is a floating point number to specify how much larger
7989 \(or smaller) font we should use. For instance, if a face requests
7990 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7991 Vface_font_rescale_alist
= Qnil
;
7993 #ifdef HAVE_WINDOW_SYSTEM
7994 defsubr (&Sbitmap_spec_p
);
7995 defsubr (&Sx_list_fonts
);
7996 defsubr (&Sinternal_face_x_get_resource
);
7997 defsubr (&Sx_family_fonts
);
7998 defsubr (&Sx_font_family_list
);
7999 #endif /* HAVE_WINDOW_SYSTEM */
8002 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
8003 (do not change this comment) */