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>
201 #include "keyboard.h"
204 #ifdef HAVE_WINDOW_SYSTEM
206 #endif /* HAVE_WINDOW_SYSTEM */
208 #ifdef HAVE_X_WINDOWS
212 #include <Xm/XmStrDefs.h>
213 #endif /* USE_MOTIF */
214 #endif /* HAVE_X_WINDOWS */
223 /* Redefine X specifics to W32 equivalents to avoid cluttering the
224 code with #ifdef blocks. */
225 #undef FRAME_X_DISPLAY_INFO
226 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
227 #define x_display_info w32_display_info
228 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
229 #define check_x check_w32
230 #define x_list_fonts w32_list_fonts
231 #define GCGraphicsExposures 0
232 #endif /* WINDOWSNT */
236 #define x_display_info mac_display_info
237 #define check_x check_mac
241 #include "dispextern.h"
242 #include "blockinput.h"
244 #include "intervals.h"
246 #ifdef HAVE_X_WINDOWS
248 /* Compensate for a bug in Xos.h on some systems, on which it requires
249 time.h. On some such systems, Xos.h tries to redefine struct
250 timeval and struct timezone if USG is #defined while it is
253 #ifdef XOS_NEEDS_TIME_H
259 #else /* not XOS_NEEDS_TIME_H */
261 #endif /* not XOS_NEEDS_TIME_H */
263 #endif /* HAVE_X_WINDOWS */
267 #define abs(X) ((X) < 0 ? -(X) : (X))
269 /* Number of pt per inch (from the TeXbook). */
271 #define PT_PER_INCH 72.27
273 /* Non-zero if face attribute ATTR is unspecified. */
275 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
277 /* Value is the number of elements of VECTOR. */
279 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
281 /* Make a copy of string S on the stack using alloca. Value is a pointer
284 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
286 /* Make a copy of the contents of Lisp string S on the stack using
287 alloca. Value is a pointer to the copy. */
289 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
291 /* Size of hash table of realized faces in face caches (should be a
294 #define FACE_CACHE_BUCKETS_SIZE 1001
296 /* Keyword symbols used for face attribute names. */
298 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
299 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
300 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
301 Lisp_Object QCreverse_video
;
302 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
304 /* Symbols used for attribute values. */
306 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
307 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
308 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
309 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
310 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
311 Lisp_Object Qultra_expanded
;
312 Lisp_Object Qreleased_button
, Qpressed_button
;
313 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
314 Lisp_Object Qunspecified
;
316 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
318 /* The name of the function to call when the background of the frame
319 has changed, frame_update_face_colors. */
321 Lisp_Object Qframe_update_face_colors
;
323 /* Names of basic faces. */
325 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
326 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
327 Lisp_Object Qmode_line_inactive
;
328 extern Lisp_Object Qmode_line
;
330 /* The symbol `face-alias'. A symbols having that property is an
331 alias for another face. Value of the property is the name of
334 Lisp_Object Qface_alias
;
336 /* Default stipple pattern used on monochrome displays. This stipple
337 pattern is used on monochrome displays instead of shades of gray
338 for a face background color. See `set-face-stipple' for possible
339 values for this variable. */
341 Lisp_Object Vface_default_stipple
;
343 /* Alist of alternative font families. Each element is of the form
344 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
345 try FAMILY1, then FAMILY2, ... */
347 Lisp_Object Vface_alternative_font_family_alist
;
349 /* Alist of alternative font registries. Each element is of the form
350 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
351 loaded, try REGISTRY1, then REGISTRY2, ... */
353 Lisp_Object Vface_alternative_font_registry_alist
;
355 /* Allowed scalable fonts. A value of nil means don't allow any
356 scalable fonts. A value of t means allow the use of any scalable
357 font. Otherwise, value must be a list of regular expressions. A
358 font may be scaled if its name matches a regular expression in the
361 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
363 /* List of regular expressions that matches names of fonts to ignore. */
365 Lisp_Object Vface_ignored_fonts
;
367 /* Alist of font name patterns vs the rescaling factor. */
369 Lisp_Object Vface_font_rescale_alist
;
371 /* Maximum number of fonts to consider in font_list. If not an
372 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
374 Lisp_Object Vfont_list_limit
;
375 #define DEFAULT_FONT_LIST_LIMIT 100
377 /* The symbols `foreground-color' and `background-color' which can be
378 used as part of a `face' property. This is for compatibility with
381 Lisp_Object Qforeground_color
, Qbackground_color
;
383 /* The symbols `face' and `mouse-face' used as text properties. */
386 extern Lisp_Object Qmouse_face
;
388 /* Error symbol for wrong_type_argument in load_pixmap. */
390 Lisp_Object Qbitmap_spec_p
;
392 /* Alist of global face definitions. Each element is of the form
393 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
394 is a Lisp vector of face attributes. These faces are used
395 to initialize faces for new frames. */
397 Lisp_Object Vface_new_frame_defaults
;
399 /* The next ID to assign to Lisp faces. */
401 static int next_lface_id
;
403 /* A vector mapping Lisp face Id's to face names. */
405 static Lisp_Object
*lface_id_to_name
;
406 static int lface_id_to_name_size
;
408 /* TTY color-related functions (defined in tty-colors.el). */
410 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
412 /* The name of the function used to compute colors on TTYs. */
414 Lisp_Object Qtty_color_alist
;
416 /* An alist of defined terminal colors and their RGB values. */
418 Lisp_Object Vtty_defined_color_alist
;
420 /* Counter for calls to clear_face_cache. If this counter reaches
421 CLEAR_FONT_TABLE_COUNT, and a frame has more than
422 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
424 static int clear_font_table_count
;
425 #define CLEAR_FONT_TABLE_COUNT 100
426 #define CLEAR_FONT_TABLE_NFONTS 10
428 /* Non-zero means face attributes have been changed since the last
429 redisplay. Used in redisplay_internal. */
431 int face_change_count
;
433 /* Non-zero means don't display bold text if a face's foreground
434 and background colors are the inverse of the default colors of the
435 display. This is a kluge to suppress `bold black' foreground text
436 which is hard to read on an LCD monitor. */
438 int tty_suppress_bold_inverse_default_colors_p
;
440 /* A list of the form `((x . y))' used to avoid consing in
441 Finternal_set_lisp_face_attribute. */
443 static Lisp_Object Vparam_value_alist
;
445 /* The total number of colors currently allocated. */
448 static int ncolors_allocated
;
449 static int npixmaps_allocated
;
453 /* Non-zero means the definition of the `menu' face for new frames has
456 int menu_face_changed_default
;
459 /* Function prototypes. */
463 struct named_merge_point
;
465 static void map_tty_color
P_ ((struct frame
*, struct face
*,
466 enum lface_attribute_index
, int *));
467 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
468 static int may_use_scalable_font_p
P_ ((const char *));
469 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
470 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
472 static int x_face_list_fonts
P_ ((struct frame
*, char *,
473 struct font_name
**, int, int));
474 static int font_scalable_p
P_ ((struct font_name
*));
475 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
476 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
477 static unsigned char *xstrlwr
P_ ((unsigned char *));
478 static void signal_error
P_ ((char *, Lisp_Object
));
479 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
480 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
481 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
482 static void free_face_colors
P_ ((struct frame
*, struct face
*));
483 static int face_color_gray_p
P_ ((struct frame
*, char *));
484 static char *build_font_name
P_ ((struct font_name
*));
485 static void free_font_names
P_ ((struct font_name
*, int));
486 static int sorted_font_list
P_ ((struct frame
*, char *,
487 int (*cmpfn
) P_ ((const void *, const void *)),
488 struct font_name
**));
489 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
490 Lisp_Object
, struct font_name
**));
491 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
492 Lisp_Object
, struct font_name
**));
493 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
494 Lisp_Object
, Lisp_Object
, struct font_name
**,
496 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
497 Lisp_Object
, struct font_name
**));
498 static int cmp_font_names
P_ ((const void *, const void *));
499 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
500 struct face
*, int));
501 static struct face
*realize_x_face
P_ ((struct face_cache
*,
502 Lisp_Object
*, int, struct face
*));
503 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
504 Lisp_Object
*, int));
505 static int realize_basic_faces
P_ ((struct frame
*));
506 static int realize_default_face
P_ ((struct frame
*));
507 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
508 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
509 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
510 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
511 static unsigned lface_hash
P_ ((Lisp_Object
*));
512 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
513 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
514 static void free_realized_face
P_ ((struct frame
*, struct face
*));
515 static void clear_face_gcs
P_ ((struct face_cache
*));
516 static void free_face_cache
P_ ((struct face_cache
*));
517 static int face_numeric_weight
P_ ((Lisp_Object
));
518 static int face_numeric_slant
P_ ((Lisp_Object
));
519 static int face_numeric_swidth
P_ ((Lisp_Object
));
520 static int face_fontset
P_ ((Lisp_Object
*));
521 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
522 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
523 struct named_merge_point
*));
524 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
525 int, struct named_merge_point
*));
526 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
527 Lisp_Object
, int, int));
528 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
529 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
530 static void free_realized_faces
P_ ((struct face_cache
*));
531 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
532 struct font_name
*, int, int, int *));
533 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
534 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
535 static int xlfd_numeric_slant
P_ ((struct font_name
*));
536 static int xlfd_numeric_weight
P_ ((struct font_name
*));
537 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
538 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
539 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
540 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
541 static int xlfd_fixed_p
P_ ((struct font_name
*));
542 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
544 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
545 struct font_name
*, int,
547 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
548 struct font_name
*, int));
550 #ifdef HAVE_WINDOW_SYSTEM
552 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
553 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
554 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
555 int (*cmpfn
) P_ ((const void *, const void *))));
556 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
557 static void x_free_gc
P_ ((struct frame
*, GC
));
558 static void clear_font_table
P_ ((struct x_display_info
*));
561 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
562 #endif /* WINDOWSNT */
565 static void x_update_menu_appearance
P_ ((struct frame
*));
567 extern void free_frame_menubar
P_ ((struct frame
*));
568 #endif /* USE_X_TOOLKIT */
570 #endif /* HAVE_WINDOW_SYSTEM */
573 /***********************************************************************
575 ***********************************************************************/
577 #ifdef HAVE_X_WINDOWS
579 #ifdef DEBUG_X_COLORS
581 /* The following is a poor mans infrastructure for debugging X color
582 allocation problems on displays with PseudoColor-8. Some X servers
583 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
584 color reference counts completely so that they don't signal an
585 error when a color is freed whose reference count is already 0.
586 Other X servers do. To help me debug this, the following code
587 implements a simple reference counting schema of its own, for a
588 single display/screen. --gerd. */
590 /* Reference counts for pixel colors. */
592 int color_count
[256];
594 /* Register color PIXEL as allocated. */
597 register_color (pixel
)
600 xassert (pixel
< 256);
601 ++color_count
[pixel
];
605 /* Register color PIXEL as deallocated. */
608 unregister_color (pixel
)
611 xassert (pixel
< 256);
612 if (color_count
[pixel
] > 0)
613 --color_count
[pixel
];
619 /* Register N colors from PIXELS as deallocated. */
622 unregister_colors (pixels
, n
)
623 unsigned long *pixels
;
627 for (i
= 0; i
< n
; ++i
)
628 unregister_color (pixels
[i
]);
632 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
633 doc
: /* Dump currently allocated colors to stderr. */)
638 fputc ('\n', stderr
);
640 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
643 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
646 fputc ('\n', stderr
);
648 fputc ('\t', stderr
);
652 fputc ('\n', stderr
);
656 #endif /* DEBUG_X_COLORS */
659 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
660 color values. Interrupt input must be blocked when this function
664 x_free_colors (f
, pixels
, npixels
)
666 unsigned long *pixels
;
669 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
671 /* If display has an immutable color map, freeing colors is not
672 necessary and some servers don't allow it. So don't do it. */
673 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
675 #ifdef DEBUG_X_COLORS
676 unregister_colors (pixels
, npixels
);
678 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
684 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
685 color values. Interrupt input must be blocked when this function
689 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
693 unsigned long *pixels
;
696 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
697 int class = dpyinfo
->visual
->class;
699 /* If display has an immutable color map, freeing colors is not
700 necessary and some servers don't allow it. So don't do it. */
701 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
703 #ifdef DEBUG_X_COLORS
704 unregister_colors (pixels
, npixels
);
706 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
711 /* Create and return a GC for use on frame F. GC values and mask
712 are given by XGCV and MASK. */
715 x_create_gc (f
, mask
, xgcv
)
722 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
729 /* Free GC which was used on frame F. */
737 xassert (--ngcs
>= 0);
738 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
742 #endif /* HAVE_X_WINDOWS */
745 /* W32 emulation of GCs */
748 x_create_gc (f
, mask
, xgcv
)
755 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
762 /* Free GC which was used on frame F. */
770 xassert (--ngcs
>= 0);
775 #endif /* WINDOWSNT */
778 /* Mac OS emulation of GCs */
780 extern XGCValues
*XCreateGC (void *, Window
, unsigned long, XGCValues
*);
783 x_create_gc (f
, mask
, xgcv
)
789 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
798 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
803 /* Like stricmp. Used to compare parts of font names which are in
808 const unsigned char *s1
, *s2
;
812 unsigned char c1
= tolower (*s1
);
813 unsigned char c2
= tolower (*s2
);
815 return c1
< c2
? -1 : 1;
820 return *s2
== 0 ? 0 : -1;
825 /* Like strlwr, which might not always be available. */
827 static unsigned char *
831 unsigned char *p
= s
;
840 /* Signal `error' with message S, and additional argument ARG. */
843 signal_error (s
, arg
)
847 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
851 /* If FRAME is nil, return a pointer to the selected frame.
852 Otherwise, check that FRAME is a live frame, and return a pointer
853 to it. NPARAM is the parameter number of FRAME, for
854 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
855 Lisp function definitions. */
857 static INLINE
struct frame
*
858 frame_or_selected_frame (frame
, nparam
)
863 frame
= selected_frame
;
865 CHECK_LIVE_FRAME (frame
);
866 return XFRAME (frame
);
870 /***********************************************************************
872 ***********************************************************************/
874 /* Initialize face cache and basic faces for frame F. */
880 /* Make a face cache, if F doesn't have one. */
881 if (FRAME_FACE_CACHE (f
) == NULL
)
882 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
884 #ifdef HAVE_WINDOW_SYSTEM
885 /* Make the image cache. */
886 if (FRAME_WINDOW_P (f
))
888 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
889 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
890 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
892 #endif /* HAVE_WINDOW_SYSTEM */
894 /* Realize basic faces. Must have enough information in frame
895 parameters to realize basic faces at this point. */
896 #ifdef HAVE_X_WINDOWS
897 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
900 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
903 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
905 if (!realize_basic_faces (f
))
910 /* Free face cache of frame F. Called from Fdelete_frame. */
916 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
920 free_face_cache (face_cache
);
921 FRAME_FACE_CACHE (f
) = NULL
;
924 #ifdef HAVE_WINDOW_SYSTEM
925 if (FRAME_WINDOW_P (f
))
927 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
930 --image_cache
->refcount
;
931 if (image_cache
->refcount
== 0)
932 free_image_cache (f
);
935 #endif /* HAVE_WINDOW_SYSTEM */
939 /* Clear face caches, and recompute basic faces for frame F. Call
940 this after changing frame parameters on which those faces depend,
941 or when realized faces have been freed due to changing attributes
945 recompute_basic_faces (f
)
948 if (FRAME_FACE_CACHE (f
))
950 clear_face_cache (0);
951 if (!realize_basic_faces (f
))
957 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
958 try to free unused fonts, too. */
961 clear_face_cache (clear_fonts_p
)
964 #ifdef HAVE_WINDOW_SYSTEM
965 Lisp_Object tail
, frame
;
969 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
971 struct x_display_info
*dpyinfo
;
973 /* Fonts are common for frames on one display, i.e. on
975 for (dpyinfo
= x_display_list
; dpyinfo
; dpyinfo
= dpyinfo
->next
)
976 if (dpyinfo
->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
977 clear_font_table (dpyinfo
);
979 /* From time to time see if we can unload some fonts. This also
980 frees all realized faces on all frames. Fonts needed by
981 faces will be loaded again when faces are realized again. */
982 clear_font_table_count
= 0;
984 FOR_EACH_FRAME (tail
, frame
)
986 struct frame
*f
= XFRAME (frame
);
987 if (FRAME_WINDOW_P (f
)
988 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
989 free_all_realized_faces (frame
);
994 /* Clear GCs of realized faces. */
995 FOR_EACH_FRAME (tail
, frame
)
998 if (FRAME_WINDOW_P (f
))
1000 clear_face_gcs (FRAME_FACE_CACHE (f
));
1001 clear_image_cache (f
, 0);
1005 #endif /* HAVE_WINDOW_SYSTEM */
1009 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1010 doc
: /* Clear face caches on all frames.
1011 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
1013 Lisp_Object thoroughly
;
1015 clear_face_cache (!NILP (thoroughly
));
1016 ++face_change_count
;
1017 ++windows_or_buffers_changed
;
1023 #ifdef HAVE_WINDOW_SYSTEM
1026 /* Remove fonts from the font table of DPYINFO except for the default
1027 ASCII fonts of frames on that display. Called from clear_face_cache
1028 from time to time. */
1031 clear_font_table (dpyinfo
)
1032 struct x_display_info
*dpyinfo
;
1036 /* Free those fonts that are not used by frames on DPYINFO. */
1037 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1039 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1040 Lisp_Object tail
, frame
;
1042 /* Check if slot is already free. */
1043 if (font_info
->name
== NULL
)
1046 /* Don't free a default font of some frame. */
1047 FOR_EACH_FRAME (tail
, frame
)
1049 struct frame
*f
= XFRAME (frame
);
1050 if (FRAME_WINDOW_P (f
)
1051 && font_info
->font
== FRAME_FONT (f
))
1059 if (font_info
->full_name
!= font_info
->name
)
1060 xfree (font_info
->full_name
);
1061 xfree (font_info
->name
);
1063 /* Free the font. */
1065 #ifdef HAVE_X_WINDOWS
1066 XFreeFont (dpyinfo
->display
, font_info
->font
);
1069 w32_unload_font (dpyinfo
, font_info
->font
);
1073 /* Mark font table slot free. */
1074 font_info
->font
= NULL
;
1075 font_info
->name
= font_info
->full_name
= NULL
;
1079 #endif /* HAVE_WINDOW_SYSTEM */
1083 /***********************************************************************
1085 ***********************************************************************/
1087 #ifdef HAVE_WINDOW_SYSTEM
1089 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1090 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1091 A bitmap specification is either a string, a file name, or a list
1092 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1093 HEIGHT is its height, and DATA is a string containing the bits of
1094 the pixmap. Bits are stored row by row, each row occupies
1095 \(WIDTH + 7)/8 bytes. */)
1101 if (STRINGP (object
))
1102 /* If OBJECT is a string, it's a file name. */
1104 else if (CONSP (object
))
1106 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1107 HEIGHT must be integers > 0, and DATA must be string large
1108 enough to hold a bitmap of the specified size. */
1109 Lisp_Object width
, height
, data
;
1111 height
= width
= data
= Qnil
;
1115 width
= XCAR (object
);
1116 object
= XCDR (object
);
1119 height
= XCAR (object
);
1120 object
= XCDR (object
);
1122 data
= XCAR (object
);
1126 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1128 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1130 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1135 return pixmap_p
? Qt
: Qnil
;
1139 /* Load a bitmap according to NAME (which is either a file name or a
1140 pixmap spec) for use on frame F. Value is the bitmap_id (see
1141 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1142 bitmap cannot be loaded, display a message saying so, and return
1143 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1144 if these pointers are not null. */
1147 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1150 unsigned int *w_ptr
, *h_ptr
;
1158 tem
= Fbitmap_spec_p (name
);
1160 wrong_type_argument (Qbitmap_spec_p
, name
);
1165 /* Decode a bitmap spec into a bitmap. */
1170 w
= XINT (Fcar (name
));
1171 h
= XINT (Fcar (Fcdr (name
)));
1172 bits
= Fcar (Fcdr (Fcdr (name
)));
1174 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1179 /* It must be a string -- a file name. */
1180 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1186 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1197 ++npixmaps_allocated
;
1200 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1203 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1209 #endif /* HAVE_WINDOW_SYSTEM */
1213 /***********************************************************************
1215 ***********************************************************************/
1217 #ifdef HAVE_WINDOW_SYSTEM
1219 /* Load font of face FACE which is used on frame F to display
1220 character C. The name of the font to load is determined by lface
1221 and fontset of FACE. */
1224 load_face_font (f
, face
, c
)
1229 struct font_info
*font_info
= NULL
;
1231 int needs_overstrike
;
1233 face
->font_info_id
= -1;
1236 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
,
1242 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1247 face
->font_info_id
= font_info
->font_idx
;
1248 face
->font
= font_info
->font
;
1249 face
->font_name
= font_info
->full_name
;
1250 face
->overstrike
= needs_overstrike
;
1253 x_free_gc (f
, face
->gc
);
1258 add_to_log ("Unable to load font %s",
1259 build_string (font_name
), Qnil
);
1263 #endif /* HAVE_WINDOW_SYSTEM */
1267 /***********************************************************************
1269 ***********************************************************************/
1271 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1272 RGB_LIST should contain (at least) 3 lisp integers.
1273 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1276 parse_rgb_list (rgb_list
, color
)
1277 Lisp_Object rgb_list
;
1280 #define PARSE_RGB_LIST_FIELD(field) \
1281 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1283 color->field = XINT (XCAR (rgb_list)); \
1284 rgb_list = XCDR (rgb_list); \
1289 PARSE_RGB_LIST_FIELD (red
);
1290 PARSE_RGB_LIST_FIELD (green
);
1291 PARSE_RGB_LIST_FIELD (blue
);
1297 /* Lookup on frame F the color described by the lisp string COLOR.
1298 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1299 non-zero, then the `standard' definition of the same color is
1303 tty_lookup_color (f
, color
, tty_color
, std_color
)
1306 XColor
*tty_color
, *std_color
;
1308 Lisp_Object frame
, color_desc
;
1310 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1313 XSETFRAME (frame
, f
);
1315 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1316 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1320 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1323 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1325 rgb
= XCDR (XCDR (color_desc
));
1326 if (! parse_rgb_list (rgb
, tty_color
))
1329 /* Should we fill in STD_COLOR too? */
1332 /* Default STD_COLOR to the same as TTY_COLOR. */
1333 *std_color
= *tty_color
;
1335 /* Do a quick check to see if the returned descriptor is
1336 actually _exactly_ equal to COLOR, otherwise we have to
1337 lookup STD_COLOR separately. If it's impossible to lookup
1338 a standard color, we just give up and use TTY_COLOR. */
1339 if ((!STRINGP (XCAR (color_desc
))
1340 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1341 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1343 /* Look up STD_COLOR separately. */
1344 rgb
= call1 (Qtty_color_standard_values
, color
);
1345 if (! parse_rgb_list (rgb
, std_color
))
1352 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1353 /* We were called early during startup, and the colors are not
1354 yet set up in tty-defined-color-alist. Don't return a failure
1355 indication, since this produces the annoying "Unable to
1356 load color" messages in the *Messages* buffer. */
1359 /* tty-color-desc seems to have returned a bad value. */
1363 /* A version of defined_color for non-X frames. */
1366 tty_defined_color (f
, color_name
, color_def
, alloc
)
1375 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1377 color_def
->blue
= 0;
1378 color_def
->green
= 0;
1381 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, 0);
1383 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1385 if (strcmp (color_name
, "unspecified-fg") == 0)
1386 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1387 else if (strcmp (color_name
, "unspecified-bg") == 0)
1388 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1391 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1398 /* Decide if color named COLOR_NAME is valid for the display
1399 associated with the frame F; if so, return the rgb values in
1400 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1402 This does the right thing for any type of frame. */
1405 defined_color (f
, color_name
, color_def
, alloc
)
1411 if (!FRAME_WINDOW_P (f
))
1412 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1413 #ifdef HAVE_X_WINDOWS
1414 else if (FRAME_X_P (f
))
1415 return x_defined_color (f
, color_name
, color_def
, alloc
);
1418 else if (FRAME_W32_P (f
))
1419 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1422 else if (FRAME_MAC_P (f
))
1423 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1430 /* Given the index IDX of a tty color on frame F, return its name, a
1434 tty_color_name (f
, idx
)
1438 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1441 Lisp_Object coldesc
;
1443 XSETFRAME (frame
, f
);
1444 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1446 if (!NILP (coldesc
))
1447 return XCAR (coldesc
);
1450 /* We can have an MSDOG frame under -nw for a short window of
1451 opportunity before internal_terminal_init is called. DTRT. */
1452 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1453 return msdos_stdcolor_name (idx
);
1456 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1457 return build_string (unspecified_fg
);
1458 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1459 return build_string (unspecified_bg
);
1462 return vga_stdcolor_name (idx
);
1465 return Qunspecified
;
1469 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1470 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1473 face_color_gray_p (f
, color_name
)
1480 if (defined_color (f
, color_name
, &color
, 0))
1481 gray_p
= ((abs (color
.red
- color
.green
)
1482 < max (color
.red
, color
.green
) / 20)
1483 && (abs (color
.green
- color
.blue
)
1484 < max (color
.green
, color
.blue
) / 20)
1485 && (abs (color
.blue
- color
.red
)
1486 < max (color
.blue
, color
.red
) / 20));
1494 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1495 BACKGROUND_P non-zero means the color will be used as background
1499 face_color_supported_p (f
, color_name
, background_p
)
1507 XSETFRAME (frame
, f
);
1509 #ifdef HAVE_X_WINDOWS
1511 ? (!NILP (Fxw_display_color_p (frame
))
1512 || xstricmp (color_name
, "black") == 0
1513 || xstricmp (color_name
, "white") == 0
1515 && face_color_gray_p (f
, color_name
))
1516 || (!NILP (Fx_display_grayscale_p (frame
))
1517 && face_color_gray_p (f
, color_name
)))
1520 tty_defined_color (f
, color_name
, ¬_used
, 0);
1524 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1525 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1526 FRAME specifies the frame and thus the display for interpreting COLOR.
1527 If FRAME is nil or omitted, use the selected frame. */)
1529 Lisp_Object color
, frame
;
1533 CHECK_STRING (color
);
1535 frame
= selected_frame
;
1537 CHECK_FRAME (frame
);
1539 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1543 DEFUN ("color-supported-p", Fcolor_supported_p
,
1544 Scolor_supported_p
, 1, 3, 0,
1545 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1546 BACKGROUND-P non-nil means COLOR is used as a background.
1547 Otherwise, this function tells whether it can be used as a foreground.
1548 If FRAME is nil or omitted, use the selected frame.
1549 COLOR must be a valid color name. */)
1550 (color
, frame
, background_p
)
1551 Lisp_Object frame
, color
, background_p
;
1555 CHECK_STRING (color
);
1557 frame
= selected_frame
;
1559 CHECK_FRAME (frame
);
1561 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1567 /* Load color with name NAME for use by face FACE on frame F.
1568 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1569 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1570 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1571 pixel color. If color cannot be loaded, display a message, and
1572 return the foreground, background or underline color of F, but
1573 record that fact in flags of the face so that we don't try to free
1577 load_color (f
, face
, name
, target_index
)
1581 enum lface_attribute_index target_index
;
1585 xassert (STRINGP (name
));
1586 xassert (target_index
== LFACE_FOREGROUND_INDEX
1587 || target_index
== LFACE_BACKGROUND_INDEX
1588 || target_index
== LFACE_UNDERLINE_INDEX
1589 || target_index
== LFACE_OVERLINE_INDEX
1590 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1591 || target_index
== LFACE_BOX_INDEX
);
1593 /* if the color map is full, defined_color will return a best match
1594 to the values in an existing cell. */
1595 if (!defined_color (f
, SDATA (name
), &color
, 1))
1597 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1599 switch (target_index
)
1601 case LFACE_FOREGROUND_INDEX
:
1602 face
->foreground_defaulted_p
= 1;
1603 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1606 case LFACE_BACKGROUND_INDEX
:
1607 face
->background_defaulted_p
= 1;
1608 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1611 case LFACE_UNDERLINE_INDEX
:
1612 face
->underline_defaulted_p
= 1;
1613 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1616 case LFACE_OVERLINE_INDEX
:
1617 face
->overline_color_defaulted_p
= 1;
1618 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1621 case LFACE_STRIKE_THROUGH_INDEX
:
1622 face
->strike_through_color_defaulted_p
= 1;
1623 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1626 case LFACE_BOX_INDEX
:
1627 face
->box_color_defaulted_p
= 1;
1628 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1637 ++ncolors_allocated
;
1644 #ifdef HAVE_WINDOW_SYSTEM
1646 /* Load colors for face FACE which is used on frame F. Colors are
1647 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1648 of ATTRS. If the background color specified is not supported on F,
1649 try to emulate gray colors with a stipple from Vface_default_stipple. */
1652 load_face_colors (f
, face
, attrs
)
1659 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1660 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1662 /* Swap colors if face is inverse-video. */
1663 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1671 /* Check for support for foreground, not for background because
1672 face_color_supported_p is smart enough to know that grays are
1673 "supported" as background because we are supposed to use stipple
1675 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1676 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1678 x_destroy_bitmap (f
, face
->stipple
);
1679 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1680 &face
->pixmap_w
, &face
->pixmap_h
);
1683 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1684 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1688 /* Free color PIXEL on frame F. */
1691 unload_color (f
, pixel
)
1693 unsigned long pixel
;
1695 #ifdef HAVE_X_WINDOWS
1699 x_free_colors (f
, &pixel
, 1);
1706 /* Free colors allocated for FACE. */
1709 free_face_colors (f
, face
)
1713 #ifdef HAVE_X_WINDOWS
1714 if (face
->colors_copied_bitwise_p
)
1719 if (!face
->foreground_defaulted_p
)
1721 x_free_colors (f
, &face
->foreground
, 1);
1722 IF_DEBUG (--ncolors_allocated
);
1725 if (!face
->background_defaulted_p
)
1727 x_free_colors (f
, &face
->background
, 1);
1728 IF_DEBUG (--ncolors_allocated
);
1731 if (face
->underline_p
1732 && !face
->underline_defaulted_p
)
1734 x_free_colors (f
, &face
->underline_color
, 1);
1735 IF_DEBUG (--ncolors_allocated
);
1738 if (face
->overline_p
1739 && !face
->overline_color_defaulted_p
)
1741 x_free_colors (f
, &face
->overline_color
, 1);
1742 IF_DEBUG (--ncolors_allocated
);
1745 if (face
->strike_through_p
1746 && !face
->strike_through_color_defaulted_p
)
1748 x_free_colors (f
, &face
->strike_through_color
, 1);
1749 IF_DEBUG (--ncolors_allocated
);
1752 if (face
->box
!= FACE_NO_BOX
1753 && !face
->box_color_defaulted_p
)
1755 x_free_colors (f
, &face
->box_color
, 1);
1756 IF_DEBUG (--ncolors_allocated
);
1760 #endif /* HAVE_X_WINDOWS */
1763 #endif /* HAVE_WINDOW_SYSTEM */
1767 /***********************************************************************
1769 ***********************************************************************/
1771 /* An enumerator for each field of an XLFD font name. */
1792 /* An enumerator for each possible slant value of a font. Taken from
1793 the XLFD specification. */
1801 XLFD_SLANT_REVERSE_ITALIC
,
1802 XLFD_SLANT_REVERSE_OBLIQUE
,
1806 /* Relative font weight according to XLFD documentation. */
1810 XLFD_WEIGHT_UNKNOWN
,
1811 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1812 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1813 XLFD_WEIGHT_LIGHT
, /* 30 */
1814 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1815 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1816 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1817 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1818 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1819 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1822 /* Relative proportionate width. */
1826 XLFD_SWIDTH_UNKNOWN
,
1827 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1828 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1829 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1830 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1831 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1832 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1833 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1834 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1835 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1838 /* Structure used for tables mapping XLFD weight, slant, and width
1839 names to numeric and symbolic values. */
1845 Lisp_Object
*symbol
;
1848 /* Table of XLFD slant names and their numeric and symbolic
1849 representations. This table must be sorted by slant names in
1852 static struct table_entry slant_table
[] =
1854 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1855 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1856 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1857 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1858 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1859 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1862 /* Table of XLFD weight names. This table must be sorted by weight
1863 names in ascending order. */
1865 static struct table_entry weight_table
[] =
1867 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1868 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1869 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1870 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1871 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1872 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1873 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1874 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1875 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1876 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1877 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1878 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1879 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1880 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1881 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1882 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1885 /* Table of XLFD width names. This table must be sorted by width
1886 names in ascending order. */
1888 static struct table_entry swidth_table
[] =
1890 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1891 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1892 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1893 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1894 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1895 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1896 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1897 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1898 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1899 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1900 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1901 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1902 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1903 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1904 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1907 /* Structure used to hold the result of splitting font names in XLFD
1908 format into their fields. */
1912 /* The original name which is modified destructively by
1913 split_font_name. The pointer is kept here to be able to free it
1914 if it was allocated from the heap. */
1917 /* Font name fields. Each vector element points into `name' above.
1918 Fields are NUL-terminated. */
1919 char *fields
[XLFD_LAST
];
1921 /* Numeric values for those fields that interest us. See
1922 split_font_name for which these are. */
1923 int numeric
[XLFD_LAST
];
1925 /* If the original name matches one of Vface_font_rescale_alist,
1926 the value is the corresponding rescale ratio. Otherwise, the
1928 double rescale_ratio
;
1930 /* Lower value mean higher priority. */
1931 int registry_priority
;
1934 /* The frame in effect when sorting font names. Set temporarily in
1935 sort_fonts so that it is available in font comparison functions. */
1937 static struct frame
*font_frame
;
1939 /* Order by which font selection chooses fonts. The default values
1940 mean `first, find a best match for the font width, then for the
1941 font height, then for weight, then for slant.' This variable can be
1942 set via set-face-font-sort-order. */
1945 static int font_sort_order
[4] = {
1946 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1949 static int font_sort_order
[4];
1952 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1953 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1954 is a pointer to the matching table entry or null if no table entry
1957 static struct table_entry
*
1958 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1959 struct table_entry
*table
;
1961 struct font_name
*font
;
1964 /* Function split_font_name converts fields to lower-case, so there
1965 is no need to use xstrlwr or xstricmp here. */
1966 char *s
= font
->fields
[field_index
];
1967 int low
, mid
, high
, cmp
;
1974 mid
= (low
+ high
) / 2;
1975 cmp
= strcmp (table
[mid
].name
, s
);
1989 /* Return a numeric representation for font name field
1990 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1991 has DIM entries. Value is the numeric value found or DFLT if no
1992 table entry matches. This function is used to translate weight,
1993 slant, and swidth names of XLFD font names to numeric values. */
1996 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1997 struct table_entry
*table
;
1999 struct font_name
*font
;
2003 struct table_entry
*p
;
2004 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2005 return p
? p
->numeric
: dflt
;
2009 /* Return a symbolic representation for font name field
2010 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2011 has DIM entries. Value is the symbolic value found or DFLT if no
2012 table entry matches. This function is used to translate weight,
2013 slant, and swidth names of XLFD font names to symbols. */
2015 static INLINE Lisp_Object
2016 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2017 struct table_entry
*table
;
2019 struct font_name
*font
;
2023 struct table_entry
*p
;
2024 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2025 return p
? *p
->symbol
: dflt
;
2029 /* Return a numeric value for the slant of the font given by FONT. */
2032 xlfd_numeric_slant (font
)
2033 struct font_name
*font
;
2035 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2036 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2040 /* Return a symbol representing the weight of the font given by FONT. */
2042 static INLINE Lisp_Object
2043 xlfd_symbolic_slant (font
)
2044 struct font_name
*font
;
2046 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2047 font
, XLFD_SLANT
, Qnormal
);
2051 /* Return a numeric value for the weight of the font given by FONT. */
2054 xlfd_numeric_weight (font
)
2055 struct font_name
*font
;
2057 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2058 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2062 /* Return a symbol representing the slant of the font given by FONT. */
2064 static INLINE Lisp_Object
2065 xlfd_symbolic_weight (font
)
2066 struct font_name
*font
;
2068 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2069 font
, XLFD_WEIGHT
, Qnormal
);
2073 /* Return a numeric value for the swidth of the font whose XLFD font
2074 name fields are found in FONT. */
2077 xlfd_numeric_swidth (font
)
2078 struct font_name
*font
;
2080 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2081 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2085 /* Return a symbolic value for the swidth of FONT. */
2087 static INLINE Lisp_Object
2088 xlfd_symbolic_swidth (font
)
2089 struct font_name
*font
;
2091 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2092 font
, XLFD_SWIDTH
, Qnormal
);
2096 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2097 entries. Value is a pointer to the matching table entry or null if
2098 no element of TABLE contains SYMBOL. */
2100 static struct table_entry
*
2101 face_value (table
, dim
, symbol
)
2102 struct table_entry
*table
;
2108 xassert (SYMBOLP (symbol
));
2110 for (i
= 0; i
< dim
; ++i
)
2111 if (EQ (*table
[i
].symbol
, symbol
))
2114 return i
< dim
? table
+ i
: NULL
;
2118 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2119 entries. Value is -1 if SYMBOL is not found in TABLE. */
2122 face_numeric_value (table
, dim
, symbol
)
2123 struct table_entry
*table
;
2127 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2128 return p
? p
->numeric
: -1;
2132 /* Return a numeric value representing the weight specified by Lisp
2133 symbol WEIGHT. Value is one of the enumerators of enum
2137 face_numeric_weight (weight
)
2140 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2144 /* Return a numeric value representing the slant specified by Lisp
2145 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2148 face_numeric_slant (slant
)
2151 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2155 /* Return a numeric value representing the swidth specified by Lisp
2156 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2159 face_numeric_swidth (width
)
2162 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2166 #ifdef HAVE_WINDOW_SYSTEM
2168 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2172 struct font_name
*font
;
2174 /* Function split_font_name converts fields to lower-case, so there
2175 is no need to use tolower here. */
2176 return *font
->fields
[XLFD_SPACING
] != 'p';
2180 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2182 The actual height of the font when displayed on F depends on the
2183 resolution of both the font and frame. For example, a 10pt font
2184 designed for a 100dpi display will display larger than 10pt on a
2185 75dpi display. (It's not unusual to use fonts not designed for the
2186 display one is using. For example, some intlfonts are available in
2187 72dpi versions, only.)
2189 Value is the real point size of FONT on frame F, or 0 if it cannot
2193 xlfd_point_size (f
, font
)
2195 struct font_name
*font
;
2197 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2198 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2202 if (*pixel_field
== '[')
2204 /* The pixel size field is `[A B C D]' which specifies
2205 a transformation matrix.
2211 by which all glyphs of the font are transformed. The spec
2212 says that s scalar value N for the pixel size is equivalent
2213 to A = N * resx/resy, B = C = 0, D = N. */
2214 char *start
= pixel_field
+ 1, *end
;
2218 for (i
= 0; i
< 4; ++i
)
2220 matrix
[i
] = strtod (start
, &end
);
2227 pixel
= atoi (pixel_field
);
2232 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2238 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2239 of frame F. This function is used to guess a point size of font
2240 when only the pixel height of the font is available. */
2243 pixel_point_size (f
, pixel
)
2247 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2251 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2252 point size of one dot. */
2253 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2254 int_pt
= real_pt
+ 0.5;
2260 /* Return a rescaling ratio of a font of NAME. */
2263 font_rescale_ratio (name
)
2266 Lisp_Object tail
, elt
;
2268 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2271 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2272 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2273 return XFLOAT_DATA (XCDR (elt
));
2279 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2280 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2281 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2282 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2283 zero if the font name doesn't have the format we expect. The
2284 expected format is a font name that starts with a `-' and has
2285 XLFD_LAST fields separated by `-'. */
2288 split_font_name (f
, font
, numeric_p
)
2290 struct font_name
*font
;
2295 double rescale_ratio
;
2298 /* This must be done before splitting the font name. */
2299 rescale_ratio
= font_rescale_ratio (font
->name
);
2301 if (*font
->name
== '-')
2303 char *p
= xstrlwr (font
->name
) + 1;
2305 while (i
< XLFD_LAST
)
2307 font
->fields
[i
] = p
;
2310 /* Pixel and point size may be of the form `[....]'. For
2311 BNF, see XLFD spec, chapter 4. Negative values are
2312 indicated by tilde characters which we replace with
2313 `-' characters, here. */
2315 && (i
- 1 == XLFD_PIXEL_SIZE
2316 || i
- 1 == XLFD_POINT_SIZE
))
2321 for (++p
; *p
&& *p
!= ']'; ++p
)
2325 /* Check that the matrix contains 4 floating point
2327 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2330 if (strtod (start
, &end
) == 0 && start
== end
)
2337 while (*p
&& *p
!= '-')
2347 success_p
= i
== XLFD_LAST
;
2349 /* If requested, and font name was in the expected format,
2350 compute numeric values for some fields. */
2351 if (numeric_p
&& success_p
)
2353 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2354 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2355 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2356 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2357 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2358 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2359 font
->rescale_ratio
= rescale_ratio
;
2362 /* Initialize it to zero. It will be overridden by font_list while
2363 trying alternate registries. */
2364 font
->registry_priority
= 0;
2370 /* Build an XLFD font name from font name fields in FONT. Value is a
2371 pointer to the font name, which is allocated via xmalloc. */
2374 build_font_name (font
)
2375 struct font_name
*font
;
2379 char *font_name
= (char *) xmalloc (size
);
2380 int total_length
= 0;
2382 for (i
= 0; i
< XLFD_LAST
; ++i
)
2384 /* Add 1 because of the leading `-'. */
2385 int len
= strlen (font
->fields
[i
]) + 1;
2387 /* Reallocate font_name if necessary. Add 1 for the final
2389 if (total_length
+ len
+ 1 >= size
)
2391 int new_size
= max (2 * size
, size
+ len
+ 1);
2392 int sz
= new_size
* sizeof *font_name
;
2393 font_name
= (char *) xrealloc (font_name
, sz
);
2397 font_name
[total_length
] = '-';
2398 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2399 total_length
+= len
;
2402 font_name
[total_length
] = 0;
2407 /* Free an array FONTS of N font_name structures. This frees FONTS
2408 itself and all `name' fields in its elements. */
2411 free_font_names (fonts
, n
)
2412 struct font_name
*fonts
;
2416 xfree (fonts
[--n
].name
);
2421 /* Sort vector FONTS of font_name structures which contains NFONTS
2422 elements using qsort and comparison function CMPFN. F is the frame
2423 on which the fonts will be used. The global variable font_frame
2424 is temporarily set to F to make it available in CMPFN. */
2427 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2429 struct font_name
*fonts
;
2431 int (*cmpfn
) P_ ((const void *, const void *));
2434 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2439 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2440 display in x_display_list. FONTS is a pointer to a vector of
2441 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2442 alternative patterns from Valternate_fontname_alist if no fonts are
2443 found matching PATTERN.
2445 For all fonts found, set FONTS[i].name to the name of the font,
2446 allocated via xmalloc, and split font names into fields. Ignore
2447 fonts that we can't parse. Value is the number of fonts found. */
2450 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2453 struct font_name
**pfonts
;
2454 int nfonts
, try_alternatives_p
;
2458 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2459 better to do it the other way around. */
2461 Lisp_Object lpattern
, tem
;
2462 struct font_name
*fonts
= 0;
2463 int num_fonts
= nfonts
;
2466 lpattern
= build_string (pattern
);
2468 /* Get the list of fonts matching PATTERN. */
2471 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2474 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2477 if (nfonts
< 0 && CONSP (lfonts
))
2478 num_fonts
= XFASTINT (Flength (lfonts
));
2480 /* Make a copy of the font names we got from X, and
2481 split them into fields. */
2483 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2485 Lisp_Object elt
, tail
;
2486 const char *name
= SDATA (XCAR (tem
));
2488 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2489 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2493 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2504 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2508 /* Make a copy of the font name. */
2509 fonts
[n
].name
= xstrdup (name
);
2511 if (split_font_name (f
, fonts
+ n
, 1))
2513 if (font_scalable_p (fonts
+ n
)
2514 && !may_use_scalable_font_p (name
))
2517 xfree (fonts
[n
].name
);
2523 xfree (fonts
[n
].name
);
2526 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2527 if (n
== 0 && try_alternatives_p
)
2529 Lisp_Object list
= Valternate_fontname_alist
;
2537 while (CONSP (list
))
2539 Lisp_Object entry
= XCAR (list
);
2541 && STRINGP (XCAR (entry
))
2542 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2549 Lisp_Object patterns
= XCAR (list
);
2552 while (CONSP (patterns
)
2553 /* If list is screwed up, give up. */
2554 && (name
= XCAR (patterns
),
2556 /* Ignore patterns equal to PATTERN because we tried that
2557 already with no success. */
2558 && (strcmp (SDATA (name
), pattern
) == 0
2559 || (n
= x_face_list_fonts (f
, SDATA (name
),
2562 patterns
= XCDR (patterns
);
2570 /* Check if a font matching pattern_offset_t on frame F is available
2571 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2572 a font name pattern is generated from FAMILY and REGISTRY. */
2575 face_font_available_p (f
, pattern
)
2577 Lisp_Object pattern
;
2581 if (! STRINGP (pattern
))
2583 Lisp_Object family
, registry
;
2584 char *family_str
, *registry_str
, *pattern_str
;
2586 CHECK_CONS (pattern
);
2587 family
= XCAR (pattern
);
2592 CHECK_STRING (family
);
2593 family_str
= (char *) SDATA (family
);
2595 registry
= XCDR (pattern
);
2596 if (NILP (registry
))
2600 CHECK_STRING (registry
);
2601 registry_str
= (char *) SDATA (registry
);
2604 pattern_str
= (char *) alloca (strlen (family_str
)
2605 + strlen (registry_str
)
2607 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2608 strcat (pattern_str
, family_str
);
2609 strcat (pattern_str
, "-*-");
2610 strcat (pattern_str
, registry_str
);
2611 if (!index (registry_str
, '-'))
2613 if (registry_str
[strlen (registry_str
) - 1] == '*')
2614 strcat (pattern_str
, "-*");
2616 strcat (pattern_str
, "*-*");
2618 pattern
= build_string (pattern_str
);
2621 /* Get the list of fonts matching PATTERN. */
2624 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2627 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2629 return XINT (Flength (fonts
));
2633 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2634 using comparison function CMPFN. Value is the number of fonts
2635 found. If value is non-zero, *FONTS is set to a vector of
2636 font_name structures allocated from the heap containing matching
2637 fonts. Each element of *FONTS contains a name member that is also
2638 allocated from the heap. Font names in these structures are split
2639 into fields. Use free_font_names to free such an array. */
2642 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2645 int (*cmpfn
) P_ ((const void *, const void *));
2646 struct font_name
**fonts
;
2650 /* Get the list of fonts matching pattern. 100 should suffice. */
2651 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2652 if (INTEGERP (Vfont_list_limit
))
2653 nfonts
= XINT (Vfont_list_limit
);
2656 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2658 /* Sort the resulting array and return it in *FONTS. If no
2659 fonts were found, make sure to set *FONTS to null. */
2661 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2672 /* Compare two font_name structures *A and *B. Value is analogous to
2673 strcmp. Sort order is given by the global variable
2674 font_sort_order. Font names are sorted so that, everything else
2675 being equal, fonts with a resolution closer to that of the frame on
2676 which they are used are listed first. The global variable
2677 font_frame is the frame on which we operate. */
2680 cmp_font_names (a
, b
)
2683 struct font_name
*x
= (struct font_name
*) a
;
2684 struct font_name
*y
= (struct font_name
*) b
;
2687 /* All strings have been converted to lower-case by split_font_name,
2688 so we can use strcmp here. */
2689 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2694 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2696 int j
= font_sort_order
[i
];
2697 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2702 /* Everything else being equal, we prefer fonts with an
2703 y-resolution closer to that of the frame. */
2704 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2705 int x_resy
= x
->numeric
[XLFD_RESY
];
2706 int y_resy
= y
->numeric
[XLFD_RESY
];
2707 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2715 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2716 is non-nil list fonts matching that pattern. Otherwise, if
2717 REGISTRY is non-nil return only fonts with that registry, otherwise
2718 return fonts of any registry. Set *FONTS to a vector of font_name
2719 structures allocated from the heap containing the fonts found.
2720 Value is the number of fonts found. */
2723 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2725 Lisp_Object pattern
, family
, registry
;
2726 struct font_name
**fonts
;
2728 char *pattern_str
, *family_str
, *registry_str
;
2732 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2733 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2735 pattern_str
= (char *) alloca (strlen (family_str
)
2736 + strlen (registry_str
)
2738 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2739 strcat (pattern_str
, family_str
);
2740 strcat (pattern_str
, "-*-");
2741 strcat (pattern_str
, registry_str
);
2742 if (!index (registry_str
, '-'))
2744 if (registry_str
[strlen (registry_str
) - 1] == '*')
2745 strcat (pattern_str
, "-*");
2747 strcat (pattern_str
, "*-*");
2751 pattern_str
= (char *) SDATA (pattern
);
2753 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2757 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2758 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2759 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2762 static struct font_name
*
2763 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2764 struct font_name
*fonts1
, *fonts2
;
2765 int nfonts1
, nfonts2
;
2767 int new_nfonts
= nfonts1
+ nfonts2
;
2768 struct font_name
*new_fonts
;
2770 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2771 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2772 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2779 /* Get a sorted list of fonts of family FAMILY on frame F.
2781 If PATTERN is non-nil list fonts matching that pattern.
2783 If REGISTRY is non-nil, return fonts with that registry and the
2784 alternative registries from Vface_alternative_font_registry_alist.
2786 If REGISTRY is nil return fonts of any registry.
2788 Set *FONTS to a vector of font_name structures allocated from the
2789 heap containing the fonts found. Value is the number of fonts
2793 font_list (f
, pattern
, family
, registry
, fonts
)
2795 Lisp_Object pattern
, family
, registry
;
2796 struct font_name
**fonts
;
2798 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2800 if (!NILP (registry
)
2801 && CONSP (Vface_alternative_font_registry_alist
))
2805 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2810 for (alter
= XCDR (alter
), reg_prio
= 1;
2812 alter
= XCDR (alter
), reg_prio
++)
2813 if (STRINGP (XCAR (alter
)))
2816 struct font_name
*fonts2
;
2818 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2820 for (i
= 0; i
< nfonts2
; i
++)
2821 fonts2
[i
].registry_priority
= reg_prio
;
2822 *fonts
= (nfonts
> 0
2823 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2834 /* Remove elements from LIST whose cars are `equal'. Called from
2835 x-family-fonts and x-font-family-list to remove duplicate font
2839 remove_duplicates (list
)
2842 Lisp_Object tail
= list
;
2844 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2846 Lisp_Object next
= XCDR (tail
);
2847 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2848 XSETCDR (tail
, XCDR (next
));
2855 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2856 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2857 If FAMILY is omitted or nil, list all families.
2858 Otherwise, FAMILY must be a string, possibly containing wildcards
2860 If FRAME is omitted or nil, use the selected frame.
2861 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2862 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2863 FAMILY is the font family name. POINT-SIZE is the size of the
2864 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2865 width, weight and slant of the font. These symbols are the same as for
2866 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2867 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2868 giving the registry and encoding of the font.
2869 The result list is sorted according to the current setting of
2870 the face font sort order. */)
2872 Lisp_Object family
, frame
;
2874 struct frame
*f
= check_x_frame (frame
);
2875 struct font_name
*fonts
;
2878 struct gcpro gcpro1
;
2881 CHECK_STRING (family
);
2885 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2886 for (i
= nfonts
- 1; i
>= 0; --i
)
2888 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2891 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2892 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2893 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2894 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2895 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2896 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2897 tem
= build_font_name (fonts
+ i
);
2898 ASET (v
, 6, build_string (tem
));
2899 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2900 fonts
[i
].fields
[XLFD_ENCODING
]);
2901 ASET (v
, 7, build_string (tem
));
2904 result
= Fcons (v
, result
);
2907 remove_duplicates (result
);
2908 free_font_names (fonts
, nfonts
);
2914 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2916 doc
: /* Return a list of available font families on FRAME.
2917 If FRAME is omitted or nil, use the selected frame.
2918 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2919 is a font family, and FIXED-P is non-nil if fonts of that family
2920 are fixed-pitch. */)
2924 struct frame
*f
= check_x_frame (frame
);
2926 struct font_name
*fonts
;
2928 struct gcpro gcpro1
;
2929 int count
= SPECPDL_INDEX ();
2931 /* Let's consider all fonts. */
2932 specbind (intern ("font-list-limit"), make_number (-1));
2933 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2937 for (i
= nfonts
- 1; i
>= 0; --i
)
2938 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2939 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2942 remove_duplicates (result
);
2943 free_font_names (fonts
, nfonts
);
2945 return unbind_to (count
, result
);
2949 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2950 doc
: /* Return a list of the names of available fonts matching PATTERN.
2951 If optional arguments FACE and FRAME are specified, return only fonts
2952 the same size as FACE on FRAME.
2953 PATTERN is a string, perhaps with wildcard characters;
2954 the * character matches any substring, and
2955 the ? character matches any single character.
2956 PATTERN is case-insensitive.
2957 FACE is a face name--a symbol.
2959 The return value is a list of strings, suitable as arguments to
2962 Fonts Emacs can't use may or may not be excluded
2963 even if they match PATTERN and FACE.
2964 The optional fourth argument MAXIMUM sets a limit on how many
2965 fonts to match. The first MAXIMUM fonts are reported.
2966 The optional fifth argument WIDTH, if specified, is a number of columns
2967 occupied by a character of a font. In that case, return only fonts
2968 the WIDTH times as wide as FACE on FRAME. */)
2969 (pattern
, face
, frame
, maximum
, width
)
2970 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2977 CHECK_STRING (pattern
);
2983 CHECK_NATNUM (maximum
);
2984 maxnames
= XINT (maximum
);
2988 CHECK_NUMBER (width
);
2990 /* We can't simply call check_x_frame because this function may be
2991 called before any frame is created. */
2992 f
= frame_or_selected_frame (frame
, 2);
2993 if (!FRAME_WINDOW_P (f
))
2995 /* Perhaps we have not yet created any frame. */
3000 /* Determine the width standard for comparison with the fonts we find. */
3006 /* This is of limited utility since it works with character
3007 widths. Keep it for compatibility. --gerd. */
3008 int face_id
= lookup_named_face (f
, face
, 0);
3009 struct face
*face
= (face_id
< 0
3011 : FACE_FROM_ID (f
, face_id
));
3014 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3015 not maximum as on X. Redefine here. */
3017 #define FONT_WIDTH FONT_MAX_WIDTH
3020 if (face
&& face
->font
)
3021 size
= FONT_WIDTH (face
->font
);
3023 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3026 size
*= XINT (width
);
3030 Lisp_Object args
[2];
3032 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3034 /* We don't have to check fontsets. */
3036 args
[1] = list_fontsets (f
, pattern
, size
);
3037 return Fnconc (2, args
);
3041 #endif /* HAVE_WINDOW_SYSTEM */
3045 /***********************************************************************
3047 ***********************************************************************/
3049 /* Access face attributes of face LFACE, a Lisp vector. */
3051 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3052 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3053 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3054 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3055 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3056 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3057 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3058 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3059 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3060 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3061 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3062 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3063 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3064 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3065 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3066 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3068 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3069 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3071 #define LFACEP(LFACE) \
3073 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3074 && EQ (AREF (LFACE, 0), Qface))
3079 /* Check consistency of Lisp face attribute vector ATTRS. */
3082 check_lface_attrs (attrs
)
3085 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3086 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3087 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3088 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3089 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3090 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3091 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3092 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3093 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3094 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3095 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3096 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3097 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3098 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3099 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3100 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3101 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3102 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3103 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3104 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3105 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3106 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3107 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3108 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3109 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3110 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3111 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3112 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3113 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3114 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3115 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3116 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3117 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3118 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3119 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3120 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3121 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3122 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3123 #ifdef HAVE_WINDOW_SYSTEM
3124 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3125 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3126 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3127 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3128 || NILP (attrs
[LFACE_FONT_INDEX
])
3129 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3134 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3142 xassert (LFACEP (lface
));
3143 check_lface_attrs (XVECTOR (lface
)->contents
);
3147 #else /* GLYPH_DEBUG == 0 */
3149 #define check_lface_attrs(attrs) (void) 0
3150 #define check_lface(lface) (void) 0
3152 #endif /* GLYPH_DEBUG == 0 */
3156 /* Face-merge cycle checking. */
3158 /* A `named merge point' is simply a point during face-merging where we
3159 look up a face by name. We keep a stack of which named lookups we're
3160 currently processing so that we can easily detect cycles, using a
3161 linked- list of struct named_merge_point structures, typically
3162 allocated on the stack frame of the named lookup functions which are
3163 active (so no consing is required). */
3164 struct named_merge_point
3166 Lisp_Object face_name
;
3167 struct named_merge_point
*prev
;
3171 /* If a face merging cycle is detected for FACE_NAME, return 0,
3172 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3173 FACE_NAME, as the head of the linked list pointed to by
3174 NAMED_MERGE_POINTS, and return 1. */
3177 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3178 Lisp_Object face_name
,
3179 struct named_merge_point
**named_merge_points
)
3181 struct named_merge_point
*prev
;
3183 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3184 if (EQ (face_name
, prev
->face_name
))
3187 new_named_merge_point
->face_name
= face_name
;
3188 new_named_merge_point
->prev
= *named_merge_points
;
3190 *named_merge_points
= new_named_merge_point
;
3198 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3199 to make it a symvol. If FACE_NAME is an alias for another face,
3200 return that face's name. */
3203 resolve_face_name (face_name
)
3204 Lisp_Object face_name
;
3206 Lisp_Object aliased
;
3208 if (STRINGP (face_name
))
3209 face_name
= intern (SDATA (face_name
));
3211 while (SYMBOLP (face_name
))
3213 aliased
= Fget (face_name
, Qface_alias
);
3217 face_name
= aliased
;
3224 /* Return the face definition of FACE_NAME on frame F. F null means
3225 return the definition for new frames. FACE_NAME may be a string or
3226 a symbol (apparently Emacs 20.2 allowed strings as face names in
3227 face text properties; Ediff uses that). If FACE_NAME is an alias
3228 for another face, return that face's definition. If SIGNAL_P is
3229 non-zero, signal an error if FACE_NAME is not a valid face name.
3230 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3233 static INLINE Lisp_Object
3234 lface_from_face_name (f
, face_name
, signal_p
)
3236 Lisp_Object face_name
;
3241 face_name
= resolve_face_name (face_name
);
3244 lface
= assq_no_quit (face_name
, f
->face_alist
);
3246 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3249 lface
= XCDR (lface
);
3251 signal_error ("Invalid face", face_name
);
3253 check_lface (lface
);
3258 /* Get face attributes of face FACE_NAME from frame-local faces on
3259 frame F. Store the resulting attributes in ATTRS which must point
3260 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3261 is non-zero, signal an error if FACE_NAME does not name a face.
3262 Otherwise, value is zero if FACE_NAME is not a face. */
3265 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3267 Lisp_Object face_name
;
3274 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3277 bcopy (XVECTOR (lface
)->contents
, attrs
,
3278 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3288 /* Non-zero if all attributes in face attribute vector ATTRS are
3289 specified, i.e. are non-nil. */
3292 lface_fully_specified_p (attrs
)
3297 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3298 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3299 && i
!= LFACE_AVGWIDTH_INDEX
)
3300 if (UNSPECIFIEDP (attrs
[i
])
3302 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3303 always unspecified. */
3304 && i
!= LFACE_STIPPLE_INDEX
3309 return i
== LFACE_VECTOR_SIZE
;
3312 #ifdef HAVE_WINDOW_SYSTEM
3314 /* Set font-related attributes of Lisp face LFACE from the fullname of
3315 the font opened by FONTNAME. If FORCE_P is zero, set only
3316 unspecified attributes of LFACE. The exception is `font'
3317 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3319 If FONTNAME is not available on frame F,
3320 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3321 If the fullname is not in a valid XLFD format,
3322 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3323 in LFACE and return 1.
3324 Otherwise, return 1. */
3327 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3330 Lisp_Object fontname
;
3331 int force_p
, may_fail_p
;
3333 struct font_name font
;
3338 char *font_name
= SDATA (fontname
);
3339 struct font_info
*font_info
;
3341 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3342 fontset
= fs_query_fontset (fontname
, 0);
3344 font_name
= SDATA (fontset_ascii (fontset
));
3346 /* Check if FONT_NAME is surely available on the system. Usually
3347 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3348 returns quickly. But, even if FONT_NAME is not yet cached,
3349 caching it now is not futail because we anyway load the font
3352 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3362 font
.name
= STRDUPA (font_info
->full_name
);
3363 have_xlfd_p
= split_font_name (f
, &font
, 1);
3365 /* Set attributes only if unspecified, otherwise face defaults for
3366 new frames would never take effect. If we couldn't get a font
3367 name conforming to XLFD, set normal values. */
3369 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3374 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3375 + strlen (font
.fields
[XLFD_FOUNDRY
])
3377 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3378 font
.fields
[XLFD_FAMILY
]);
3379 val
= build_string (buffer
);
3382 val
= build_string ("*");
3383 LFACE_FAMILY (lface
) = val
;
3386 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3389 pt
= xlfd_point_size (f
, &font
);
3391 pt
= pixel_point_size (f
, font_info
->height
* 10);
3393 LFACE_HEIGHT (lface
) = make_number (pt
);
3396 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3397 LFACE_SWIDTH (lface
)
3398 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3400 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3401 LFACE_AVGWIDTH (lface
)
3403 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3406 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3407 LFACE_WEIGHT (lface
)
3408 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3410 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3412 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3414 LFACE_FONT (lface
) = fontname
;
3419 #endif /* HAVE_WINDOW_SYSTEM */
3422 /* Merges the face height FROM with the face height TO, and returns the
3423 merged height. If FROM is an invalid height, then INVALID is
3424 returned instead. FROM and TO may be either absolute face heights or
3425 `relative' heights; the returned value is always an absolute height
3426 unless both FROM and TO are relative. GCPRO is a lisp value that
3427 will be protected from garbage-collection if this function makes a
3431 merge_face_heights (from
, to
, invalid
, gcpro
)
3432 Lisp_Object from
, to
, invalid
, gcpro
;
3434 Lisp_Object result
= invalid
;
3436 if (INTEGERP (from
))
3437 /* FROM is absolute, just use it as is. */
3439 else if (FLOATP (from
))
3440 /* FROM is a scale, use it to adjust TO. */
3443 /* relative X absolute => absolute */
3444 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3445 else if (FLOATP (to
))
3446 /* relative X relative => relative */
3447 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3448 else if (UNSPECIFIEDP (to
))
3451 else if (FUNCTIONP (from
))
3452 /* FROM is a function, which use to adjust TO. */
3454 /* Call function with current height as argument.
3455 From is the new height. */
3456 Lisp_Object args
[2];
3457 struct gcpro gcpro1
;
3463 result
= safe_call (2, args
);
3467 /* Ensure that if TO was absolute, so is the result. */
3468 if (INTEGERP (to
) && !INTEGERP (result
))
3476 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3477 store the resulting attributes in TO, which must be already be
3478 completely specified and contain only absolute attributes. Every
3479 specified attribute of FROM overrides the corresponding attribute of
3480 TO; relative attributes in FROM are merged with the absolute value in
3481 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3482 loops in face inheritance; it should be 0 when called from other
3486 merge_face_vectors (f
, from
, to
, named_merge_points
)
3488 Lisp_Object
*from
, *to
;
3489 struct named_merge_point
*named_merge_points
;
3493 /* If FROM inherits from some other faces, merge their attributes into
3494 TO before merging FROM's direct attributes. Note that an :inherit
3495 attribute of `unspecified' is the same as one of nil; we never
3496 merge :inherit attributes, so nil is more correct, but lots of
3497 other code uses `unspecified' as a generic value for face attributes. */
3498 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3499 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3500 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3502 /* If TO specifies a :font attribute, and FROM specifies some
3503 font-related attribute, we need to clear TO's :font attribute
3504 (because it will be inconsistent with whatever FROM specifies, and
3505 FROM takes precedence). */
3506 if (!NILP (to
[LFACE_FONT_INDEX
])
3507 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3508 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3509 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3510 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3511 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3512 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3513 to
[LFACE_FONT_INDEX
] = Qnil
;
3515 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3516 if (!UNSPECIFIEDP (from
[i
]))
3518 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3519 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
],
3520 named_merge_points
);
3525 /* TO is always an absolute face, which should inherit from nothing.
3526 We blindly copy the :inherit attribute above and fix it up here. */
3527 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3530 /* Merge the named face FACE_NAME on frame F, into the vector of face
3531 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3532 inheritance. Returns true if FACE_NAME is a valid face name and
3533 merging succeeded. */
3536 merge_named_face (f
, face_name
, to
, named_merge_points
)
3538 Lisp_Object face_name
;
3540 struct named_merge_point
*named_merge_points
;
3542 struct named_merge_point named_merge_point
;
3544 if (push_named_merge_point (&named_merge_point
,
3545 face_name
, &named_merge_points
))
3547 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3548 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3551 merge_face_vectors (f
, from
, to
, named_merge_points
);
3560 /* Merge face attributes from the lisp `face reference' FACE_REF on
3561 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3562 problems with FACE_REF cause an error message to be shown. Return
3563 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3564 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3565 list structure; it may be 0 for most callers.
3567 FACE_REF may be a single face specification or a list of such
3568 specifications. Each face specification can be:
3570 1. A symbol or string naming a Lisp face.
3572 2. A property list of the form (KEYWORD VALUE ...) where each
3573 KEYWORD is a face attribute name, and value is an appropriate value
3576 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3577 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3578 for compatibility with 20.2.
3580 Face specifications earlier in lists take precedence over later
3584 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3586 Lisp_Object face_ref
;
3589 struct named_merge_point
*named_merge_points
;
3591 int ok
= 1; /* Succeed without an error? */
3593 if (CONSP (face_ref
))
3595 Lisp_Object first
= XCAR (face_ref
);
3597 if (EQ (first
, Qforeground_color
)
3598 || EQ (first
, Qbackground_color
))
3600 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3601 . COLOR). COLOR must be a string. */
3602 Lisp_Object color_name
= XCDR (face_ref
);
3603 Lisp_Object color
= first
;
3605 if (STRINGP (color_name
))
3607 if (EQ (color
, Qforeground_color
))
3608 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3610 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3615 add_to_log ("Invalid face color", color_name
, Qnil
);
3619 else if (SYMBOLP (first
)
3620 && *SDATA (SYMBOL_NAME (first
)) == ':')
3622 /* Assume this is the property list form. */
3623 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3625 Lisp_Object keyword
= XCAR (face_ref
);
3626 Lisp_Object value
= XCAR (XCDR (face_ref
));
3629 /* Specifying `unspecified' is a no-op. */
3630 if (EQ (value
, Qunspecified
))
3632 else 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 (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 x_update_menu_appearance (f
);
6838 unbind_to (count
, Qnil
);
6844 /* Realize the default face on frame F. If the face is not fully
6845 specified, make it fully-specified. Attributes of the default face
6846 that are not explicitly specified are taken from frame parameters. */
6849 realize_default_face (f
)
6852 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6854 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6855 Lisp_Object frame_font
;
6858 /* If the `default' face is not yet known, create it. */
6859 lface
= lface_from_face_name (f
, Qdefault
, 0);
6863 XSETFRAME (frame
, f
);
6864 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6868 #ifdef HAVE_WINDOW_SYSTEM
6869 if (FRAME_WINDOW_P (f
))
6871 /* Set frame_font to the value of the `font' frame parameter. */
6872 frame_font
= Fassq (Qfont
, f
->param_alist
);
6873 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6874 frame_font
= XCDR (frame_font
);
6875 set_lface_from_font_name (f
, lface
, frame_font
,
6876 f
->default_face_done_p
, 1);
6877 f
->default_face_done_p
= 1;
6879 #endif /* HAVE_WINDOW_SYSTEM */
6881 if (!FRAME_WINDOW_P (f
))
6883 LFACE_FAMILY (lface
) = build_string ("default");
6884 LFACE_SWIDTH (lface
) = Qnormal
;
6885 LFACE_HEIGHT (lface
) = make_number (1);
6886 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6887 LFACE_WEIGHT (lface
) = Qnormal
;
6888 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6889 LFACE_SLANT (lface
) = Qnormal
;
6890 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6893 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6894 LFACE_UNDERLINE (lface
) = Qnil
;
6896 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6897 LFACE_OVERLINE (lface
) = Qnil
;
6899 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6900 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6902 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6903 LFACE_BOX (lface
) = Qnil
;
6905 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6906 LFACE_INVERSE (lface
) = Qnil
;
6908 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6910 /* This function is called so early that colors are not yet
6911 set in the frame parameter list. */
6912 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6914 if (CONSP (color
) && STRINGP (XCDR (color
)))
6915 LFACE_FOREGROUND (lface
) = XCDR (color
);
6916 else if (FRAME_WINDOW_P (f
))
6918 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6919 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6924 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6926 /* This function is called so early that colors are not yet
6927 set in the frame parameter list. */
6928 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6929 if (CONSP (color
) && STRINGP (XCDR (color
)))
6930 LFACE_BACKGROUND (lface
) = XCDR (color
);
6931 else if (FRAME_WINDOW_P (f
))
6933 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6934 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6939 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6940 LFACE_STIPPLE (lface
) = Qnil
;
6942 /* Realize the face; it must be fully-specified now. */
6943 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6944 check_lface (lface
);
6945 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6946 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6951 /* Realize basic faces other than the default face in face cache C.
6952 SYMBOL is the face name, ID is the face id the realized face must
6953 have. The default face must have been realized already. */
6956 realize_named_face (f
, symbol
, id
)
6961 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6962 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6963 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6964 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6965 struct face
*new_face
;
6967 /* The default face must exist and be fully specified. */
6968 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6969 check_lface_attrs (attrs
);
6970 xassert (lface_fully_specified_p (attrs
));
6972 /* If SYMBOL isn't know as a face, create it. */
6976 XSETFRAME (frame
, f
);
6977 lface
= Finternal_make_lisp_face (symbol
, frame
);
6980 /* Merge SYMBOL's face with the default face. */
6981 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6982 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
6984 /* Realize the face. */
6985 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6989 /* Realize the fully-specified face with attributes ATTRS in face
6990 cache CACHE for character C. If C is a multibyte character,
6991 BASE_FACE is a face that has the same attributes. Otherwise,
6992 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6993 ID of face to remove before caching the new face. Value is a
6994 pointer to the newly created realized face. */
6996 static struct face
*
6997 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6998 struct face_cache
*cache
;
7001 struct face
*base_face
;
7006 /* LFACE must be fully specified. */
7007 xassert (cache
!= NULL
);
7008 check_lface_attrs (attrs
);
7010 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7012 /* Remove the former face. */
7013 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7014 uncache_face (cache
, former_face
);
7015 free_realized_face (cache
->f
, former_face
);
7018 if (FRAME_WINDOW_P (cache
->f
))
7019 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7020 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7021 face
= realize_tty_face (cache
, attrs
, c
);
7025 /* Insert the new face. */
7026 cache_face (cache
, face
, lface_hash (attrs
));
7027 #ifdef HAVE_WINDOW_SYSTEM
7028 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7029 load_face_font (cache
->f
, face
, c
);
7030 #endif /* HAVE_WINDOW_SYSTEM */
7035 /* Realize the fully-specified face with attributes ATTRS in face
7036 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7037 a multibyte character, BASE_FACE is a face that has the same
7038 attributes. Otherwise, BASE_FACE is ignored. If the new face
7039 doesn't share font with the default face, a fontname is allocated
7040 from the heap and set in `font_name' of the new face, but it is not
7041 yet loaded here. Value is a pointer to the newly created realized
7044 static struct face
*
7045 realize_x_face (cache
, attrs
, c
, base_face
)
7046 struct face_cache
*cache
;
7049 struct face
*base_face
;
7051 #ifdef HAVE_WINDOW_SYSTEM
7052 struct face
*face
, *default_face
;
7054 Lisp_Object stipple
, overline
, strike_through
, box
;
7056 xassert (FRAME_WINDOW_P (cache
->f
));
7057 xassert (SINGLE_BYTE_CHAR_P (c
)
7060 /* Allocate a new realized face. */
7061 face
= make_realized_face (attrs
);
7065 /* If C is a multibyte character, we share all face attirbutes with
7066 BASE_FACE including the realized fontset. But, we must load a
7068 if (!SINGLE_BYTE_CHAR_P (c
))
7070 bcopy (base_face
, face
, sizeof *face
);
7073 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7074 face
->colors_copied_bitwise_p
= 1;
7076 /* to force realize_face to load font */
7081 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7083 /* Determine the font to use. Most of the time, the font will be
7084 the same as the font of the default face, so try that first. */
7085 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7087 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7088 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7090 face
->font
= default_face
->font
;
7091 face
->fontset
= default_face
->fontset
;
7092 face
->font_info_id
= default_face
->font_info_id
;
7093 face
->font_name
= default_face
->font_name
;
7094 face
->ascii_face
= face
;
7096 /* But, as we can't share the fontset, make a new realized
7097 fontset that has the same base fontset as of the default
7100 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7104 /* If the face attribute ATTRS specifies a fontset, use it as
7105 the base of a new realized fontset. Otherwise, use the same
7106 base fontset as of the default face. The base determines
7107 registry and encoding of a font. It may also determine
7108 foundry and family. The other fields of font name pattern
7109 are constructed from ATTRS. */
7110 int fontset
= face_fontset (attrs
);
7112 if ((fontset
== -1) && default_face
)
7113 fontset
= default_face
->fontset
;
7114 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7115 face
->font
= NULL
; /* to force realize_face to load font */
7118 /* Load colors, and set remaining attributes. */
7120 load_face_colors (f
, face
, attrs
);
7123 box
= attrs
[LFACE_BOX_INDEX
];
7126 /* A simple box of line width 1 drawn in color given by
7128 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7130 face
->box
= FACE_SIMPLE_BOX
;
7131 face
->box_line_width
= 1;
7133 else if (INTEGERP (box
))
7135 /* Simple box of specified line width in foreground color of the
7137 xassert (XINT (box
) != 0);
7138 face
->box
= FACE_SIMPLE_BOX
;
7139 face
->box_line_width
= XINT (box
);
7140 face
->box_color
= face
->foreground
;
7141 face
->box_color_defaulted_p
= 1;
7143 else if (CONSP (box
))
7145 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7146 being one of `raised' or `sunken'. */
7147 face
->box
= FACE_SIMPLE_BOX
;
7148 face
->box_color
= face
->foreground
;
7149 face
->box_color_defaulted_p
= 1;
7150 face
->box_line_width
= 1;
7154 Lisp_Object keyword
, value
;
7156 keyword
= XCAR (box
);
7164 if (EQ (keyword
, QCline_width
))
7166 if (INTEGERP (value
) && XINT (value
) != 0)
7167 face
->box_line_width
= XINT (value
);
7169 else if (EQ (keyword
, QCcolor
))
7171 if (STRINGP (value
))
7173 face
->box_color
= load_color (f
, face
, value
,
7175 face
->use_box_color_for_shadows_p
= 1;
7178 else if (EQ (keyword
, QCstyle
))
7180 if (EQ (value
, Qreleased_button
))
7181 face
->box
= FACE_RAISED_BOX
;
7182 else if (EQ (value
, Qpressed_button
))
7183 face
->box
= FACE_SUNKEN_BOX
;
7188 /* Text underline, overline, strike-through. */
7190 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7192 /* Use default color (same as foreground color). */
7193 face
->underline_p
= 1;
7194 face
->underline_defaulted_p
= 1;
7195 face
->underline_color
= 0;
7197 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7199 /* Use specified color. */
7200 face
->underline_p
= 1;
7201 face
->underline_defaulted_p
= 0;
7202 face
->underline_color
7203 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7204 LFACE_UNDERLINE_INDEX
);
7206 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7208 face
->underline_p
= 0;
7209 face
->underline_defaulted_p
= 0;
7210 face
->underline_color
= 0;
7213 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7214 if (STRINGP (overline
))
7216 face
->overline_color
7217 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7218 LFACE_OVERLINE_INDEX
);
7219 face
->overline_p
= 1;
7221 else if (EQ (overline
, Qt
))
7223 face
->overline_color
= face
->foreground
;
7224 face
->overline_color_defaulted_p
= 1;
7225 face
->overline_p
= 1;
7228 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7229 if (STRINGP (strike_through
))
7231 face
->strike_through_color
7232 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7233 LFACE_STRIKE_THROUGH_INDEX
);
7234 face
->strike_through_p
= 1;
7236 else if (EQ (strike_through
, Qt
))
7238 face
->strike_through_color
= face
->foreground
;
7239 face
->strike_through_color_defaulted_p
= 1;
7240 face
->strike_through_p
= 1;
7243 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7244 if (!NILP (stipple
))
7245 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7247 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7249 #endif /* HAVE_WINDOW_SYSTEM */
7253 /* Map a specified color of face FACE on frame F to a tty color index.
7254 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7255 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7256 default foreground/background colors. */
7259 map_tty_color (f
, face
, idx
, defaulted
)
7262 enum lface_attribute_index idx
;
7265 Lisp_Object frame
, color
, def
;
7266 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7267 unsigned long default_pixel
, default_other_pixel
, pixel
;
7269 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7273 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7274 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7278 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7279 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7282 XSETFRAME (frame
, f
);
7283 color
= face
->lface
[idx
];
7287 && CONSP (Vtty_defined_color_alist
)
7288 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7291 /* Associations in tty-defined-color-alist are of the form
7292 (NAME INDEX R G B). We need the INDEX part. */
7293 pixel
= XINT (XCAR (XCDR (def
)));
7296 if (pixel
== default_pixel
&& STRINGP (color
))
7298 pixel
= load_color (f
, face
, color
, idx
);
7300 #if defined (MSDOS) || defined (WINDOWSNT)
7301 /* If the foreground of the default face is the default color,
7302 use the foreground color defined by the frame. */
7304 if (FRAME_MSDOS_P (f
))
7307 if (pixel
== default_pixel
7308 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7311 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7313 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7314 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7317 else if (pixel
== default_other_pixel
)
7320 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7322 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7323 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7329 #endif /* MSDOS or WINDOWSNT */
7333 face
->foreground
= pixel
;
7335 face
->background
= pixel
;
7339 /* Realize the fully-specified face with attributes ATTRS in face
7340 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7341 pointer to the newly created realized face. */
7343 static struct face
*
7344 realize_tty_face (cache
, attrs
, c
)
7345 struct face_cache
*cache
;
7351 int face_colors_defaulted
= 0;
7352 struct frame
*f
= cache
->f
;
7354 /* Frame must be a termcap frame. */
7355 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7357 /* Allocate a new realized face. */
7358 face
= make_realized_face (attrs
);
7359 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7361 /* Map face attributes to TTY appearances. We map slant to
7362 dimmed text because we want italic text to appear differently
7363 and because dimmed text is probably used infrequently. */
7364 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7365 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7367 if (weight
> XLFD_WEIGHT_MEDIUM
)
7368 face
->tty_bold_p
= 1;
7369 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7370 face
->tty_dim_p
= 1;
7371 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7372 face
->tty_underline_p
= 1;
7373 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7374 face
->tty_reverse_p
= 1;
7376 /* Map color names to color indices. */
7377 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7378 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7380 /* Swap colors if face is inverse-video. If the colors are taken
7381 from the frame colors, they are already inverted, since the
7382 frame-creation function calls x-handle-reverse-video. */
7383 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7385 unsigned long tem
= face
->foreground
;
7386 face
->foreground
= face
->background
;
7387 face
->background
= tem
;
7390 if (tty_suppress_bold_inverse_default_colors_p
7392 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7393 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7394 face
->tty_bold_p
= 0;
7400 DEFUN ("tty-suppress-bold-inverse-default-colors",
7401 Ftty_suppress_bold_inverse_default_colors
,
7402 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7403 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7404 SUPPRESS non-nil means suppress it.
7405 This affects bold faces on TTYs whose foreground is the default background
7406 color of the display and whose background is the default foreground color.
7407 For such faces, the bold face attribute is ignored if this variable
7410 Lisp_Object suppress
;
7412 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7413 ++face_change_count
;
7419 /***********************************************************************
7421 ***********************************************************************/
7423 /* Return the ID of the face to use to display character CH with face
7424 property PROP on frame F in current_buffer. */
7427 compute_char_face (f
, ch
, prop
)
7434 if (NILP (current_buffer
->enable_multibyte_characters
))
7439 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7440 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7444 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7445 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7446 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7447 merge_face_ref (f
, prop
, attrs
, 1, 0);
7448 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7454 /* Return the face ID associated with buffer position POS for
7455 displaying ASCII characters. Return in *ENDPTR the position at
7456 which a different face is needed, as far as text properties and
7457 overlays are concerned. W is a window displaying current_buffer.
7459 REGION_BEG, REGION_END delimit the region, so it can be
7462 LIMIT is a position not to scan beyond. That is to limit the time
7463 this function can take.
7465 If MOUSE is non-zero, use the character's mouse-face, not its face.
7467 The face returned is suitable for displaying ASCII characters. */
7470 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7471 endptr
, limit
, mouse
)
7474 int region_beg
, region_end
;
7479 struct frame
*f
= XFRAME (w
->frame
);
7480 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7481 Lisp_Object prop
, position
;
7483 Lisp_Object
*overlay_vec
;
7486 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7487 Lisp_Object limit1
, end
;
7488 struct face
*default_face
;
7490 /* W must display the current buffer. We could write this function
7491 to use the frame and buffer of W, but right now it doesn't. */
7492 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7494 XSETFRAME (frame
, f
);
7495 XSETFASTINT (position
, pos
);
7498 if (pos
< region_beg
&& region_beg
< endpos
)
7499 endpos
= region_beg
;
7501 /* Get the `face' or `mouse_face' text property at POS, and
7502 determine the next position at which the property changes. */
7503 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7504 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7505 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7507 endpos
= XINT (end
);
7509 /* Look at properties from overlays. */
7513 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7514 if (next_overlay
< endpos
)
7515 endpos
= next_overlay
;
7520 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7522 /* Optimize common cases where we can use the default face. */
7525 && !(pos
>= region_beg
&& pos
< region_end
))
7526 return DEFAULT_FACE_ID
;
7528 /* Begin with attributes from the default face. */
7529 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7531 /* Merge in attributes specified via text properties. */
7533 merge_face_ref (f
, prop
, attrs
, 1, 0);
7535 /* Now merge the overlay data. */
7536 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7537 for (i
= 0; i
< noverlays
; i
++)
7542 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7544 merge_face_ref (f
, prop
, attrs
, 1, 0);
7546 oend
= OVERLAY_END (overlay_vec
[i
]);
7547 oendpos
= OVERLAY_POSITION (oend
);
7548 if (oendpos
< endpos
)
7552 /* If in the region, merge in the region face. */
7553 if (pos
>= region_beg
&& pos
< region_end
)
7555 merge_named_face (f
, Qregion
, attrs
, 0);
7557 if (region_end
< endpos
)
7558 endpos
= region_end
;
7563 /* Look up a realized face with the given face attributes,
7564 or realize a new one for ASCII characters. */
7565 return lookup_face (f
, attrs
, 0, NULL
);
7569 /* Compute the face at character position POS in Lisp string STRING on
7570 window W, for ASCII characters.
7572 If STRING is an overlay string, it comes from position BUFPOS in
7573 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7574 not an overlay string. W must display the current buffer.
7575 REGION_BEG and REGION_END give the start and end positions of the
7576 region; both are -1 if no region is visible.
7578 BASE_FACE_ID is the id of a face to merge with. For strings coming
7579 from overlays or the `display' property it is the face at BUFPOS.
7581 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7583 Set *ENDPTR to the next position where to check for faces in
7584 STRING; -1 if the face is constant from POS to the end of the
7587 Value is the id of the face to use. The face returned is suitable
7588 for displaying ASCII characters. */
7591 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7592 region_end
, endptr
, base_face_id
, mouse_p
)
7596 int region_beg
, region_end
;
7598 enum face_id base_face_id
;
7601 Lisp_Object prop
, position
, end
, limit
;
7602 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7603 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7604 struct face
*base_face
;
7605 int multibyte_p
= STRING_MULTIBYTE (string
);
7606 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7608 /* Get the value of the face property at the current position within
7609 STRING. Value is nil if there is no face property. */
7610 XSETFASTINT (position
, pos
);
7611 prop
= Fget_text_property (position
, prop_name
, string
);
7613 /* Get the next position at which to check for faces. Value of end
7614 is nil if face is constant all the way to the end of the string.
7615 Otherwise it is a string position where to check faces next.
7616 Limit is the maximum position up to which to check for property
7617 changes in Fnext_single_property_change. Strings are usually
7618 short, so set the limit to the end of the string. */
7619 XSETFASTINT (limit
, SCHARS (string
));
7620 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7622 *endptr
= XFASTINT (end
);
7626 base_face
= FACE_FROM_ID (f
, base_face_id
);
7627 xassert (base_face
);
7629 /* Optimize the default case that there is no face property and we
7630 are not in the region. */
7632 && (base_face_id
!= DEFAULT_FACE_ID
7633 /* BUFPOS <= 0 means STRING is not an overlay string, so
7634 that the region doesn't have to be taken into account. */
7636 || bufpos
< region_beg
7637 || bufpos
>= region_end
)
7639 /* We can't realize faces for different charsets differently
7640 if we don't have fonts, so we can stop here if not working
7641 on a window-system frame. */
7642 || !FRAME_WINDOW_P (f
)
7643 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7644 return base_face
->id
;
7646 /* Begin with attributes from the base face. */
7647 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7649 /* Merge in attributes specified via text properties. */
7651 merge_face_ref (f
, prop
, attrs
, 1, 0);
7653 /* If in the region, merge in the region face. */
7655 && bufpos
>= region_beg
7656 && bufpos
< region_end
)
7657 merge_named_face (f
, Qregion
, attrs
, 0);
7659 /* Look up a realized face with the given face attributes,
7660 or realize a new one for ASCII characters. */
7661 return lookup_face (f
, attrs
, 0, NULL
);
7666 /***********************************************************************
7668 ***********************************************************************/
7672 /* Print the contents of the realized face FACE to stderr. */
7675 dump_realized_face (face
)
7678 fprintf (stderr
, "ID: %d\n", face
->id
);
7679 #ifdef HAVE_X_WINDOWS
7680 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7682 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7684 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7685 fprintf (stderr
, "background: 0x%lx (%s)\n",
7687 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7688 fprintf (stderr
, "font_name: %s (%s)\n",
7690 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7691 #ifdef HAVE_X_WINDOWS
7692 fprintf (stderr
, "font = %p\n", face
->font
);
7694 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7695 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7696 fprintf (stderr
, "underline: %d (%s)\n",
7698 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7699 fprintf (stderr
, "hash: %d\n", face
->hash
);
7700 fprintf (stderr
, "charset: %d\n", face
->charset
);
7704 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7712 fprintf (stderr
, "font selection order: ");
7713 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7714 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7715 fprintf (stderr
, "\n");
7717 fprintf (stderr
, "alternative fonts: ");
7718 debug_print (Vface_alternative_font_family_alist
);
7719 fprintf (stderr
, "\n");
7721 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7722 Fdump_face (make_number (i
));
7728 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7730 error ("Not a valid face");
7731 dump_realized_face (face
);
7738 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7739 0, 0, 0, doc
: /* */)
7742 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7743 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7744 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7748 #endif /* GLYPH_DEBUG != 0 */
7752 /***********************************************************************
7754 ***********************************************************************/
7759 Qface
= intern ("face");
7761 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7762 staticpro (&Qbitmap_spec_p
);
7763 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7764 staticpro (&Qframe_update_face_colors
);
7766 /* Lisp face attribute keywords. */
7767 QCfamily
= intern (":family");
7768 staticpro (&QCfamily
);
7769 QCheight
= intern (":height");
7770 staticpro (&QCheight
);
7771 QCweight
= intern (":weight");
7772 staticpro (&QCweight
);
7773 QCslant
= intern (":slant");
7774 staticpro (&QCslant
);
7775 QCunderline
= intern (":underline");
7776 staticpro (&QCunderline
);
7777 QCinverse_video
= intern (":inverse-video");
7778 staticpro (&QCinverse_video
);
7779 QCreverse_video
= intern (":reverse-video");
7780 staticpro (&QCreverse_video
);
7781 QCforeground
= intern (":foreground");
7782 staticpro (&QCforeground
);
7783 QCbackground
= intern (":background");
7784 staticpro (&QCbackground
);
7785 QCstipple
= intern (":stipple");;
7786 staticpro (&QCstipple
);
7787 QCwidth
= intern (":width");
7788 staticpro (&QCwidth
);
7789 QCfont
= intern (":font");
7790 staticpro (&QCfont
);
7791 QCbold
= intern (":bold");
7792 staticpro (&QCbold
);
7793 QCitalic
= intern (":italic");
7794 staticpro (&QCitalic
);
7795 QCoverline
= intern (":overline");
7796 staticpro (&QCoverline
);
7797 QCstrike_through
= intern (":strike-through");
7798 staticpro (&QCstrike_through
);
7799 QCbox
= intern (":box");
7801 QCinherit
= intern (":inherit");
7802 staticpro (&QCinherit
);
7804 /* Symbols used for Lisp face attribute values. */
7805 QCcolor
= intern (":color");
7806 staticpro (&QCcolor
);
7807 QCline_width
= intern (":line-width");
7808 staticpro (&QCline_width
);
7809 QCstyle
= intern (":style");
7810 staticpro (&QCstyle
);
7811 Qreleased_button
= intern ("released-button");
7812 staticpro (&Qreleased_button
);
7813 Qpressed_button
= intern ("pressed-button");
7814 staticpro (&Qpressed_button
);
7815 Qnormal
= intern ("normal");
7816 staticpro (&Qnormal
);
7817 Qultra_light
= intern ("ultra-light");
7818 staticpro (&Qultra_light
);
7819 Qextra_light
= intern ("extra-light");
7820 staticpro (&Qextra_light
);
7821 Qlight
= intern ("light");
7822 staticpro (&Qlight
);
7823 Qsemi_light
= intern ("semi-light");
7824 staticpro (&Qsemi_light
);
7825 Qsemi_bold
= intern ("semi-bold");
7826 staticpro (&Qsemi_bold
);
7827 Qbold
= intern ("bold");
7829 Qextra_bold
= intern ("extra-bold");
7830 staticpro (&Qextra_bold
);
7831 Qultra_bold
= intern ("ultra-bold");
7832 staticpro (&Qultra_bold
);
7833 Qoblique
= intern ("oblique");
7834 staticpro (&Qoblique
);
7835 Qitalic
= intern ("italic");
7836 staticpro (&Qitalic
);
7837 Qreverse_oblique
= intern ("reverse-oblique");
7838 staticpro (&Qreverse_oblique
);
7839 Qreverse_italic
= intern ("reverse-italic");
7840 staticpro (&Qreverse_italic
);
7841 Qultra_condensed
= intern ("ultra-condensed");
7842 staticpro (&Qultra_condensed
);
7843 Qextra_condensed
= intern ("extra-condensed");
7844 staticpro (&Qextra_condensed
);
7845 Qcondensed
= intern ("condensed");
7846 staticpro (&Qcondensed
);
7847 Qsemi_condensed
= intern ("semi-condensed");
7848 staticpro (&Qsemi_condensed
);
7849 Qsemi_expanded
= intern ("semi-expanded");
7850 staticpro (&Qsemi_expanded
);
7851 Qexpanded
= intern ("expanded");
7852 staticpro (&Qexpanded
);
7853 Qextra_expanded
= intern ("extra-expanded");
7854 staticpro (&Qextra_expanded
);
7855 Qultra_expanded
= intern ("ultra-expanded");
7856 staticpro (&Qultra_expanded
);
7857 Qbackground_color
= intern ("background-color");
7858 staticpro (&Qbackground_color
);
7859 Qforeground_color
= intern ("foreground-color");
7860 staticpro (&Qforeground_color
);
7861 Qunspecified
= intern ("unspecified");
7862 staticpro (&Qunspecified
);
7864 Qface_alias
= intern ("face-alias");
7865 staticpro (&Qface_alias
);
7866 Qdefault
= intern ("default");
7867 staticpro (&Qdefault
);
7868 Qtool_bar
= intern ("tool-bar");
7869 staticpro (&Qtool_bar
);
7870 Qregion
= intern ("region");
7871 staticpro (&Qregion
);
7872 Qfringe
= intern ("fringe");
7873 staticpro (&Qfringe
);
7874 Qheader_line
= intern ("header-line");
7875 staticpro (&Qheader_line
);
7876 Qscroll_bar
= intern ("scroll-bar");
7877 staticpro (&Qscroll_bar
);
7878 Qmenu
= intern ("menu");
7880 Qcursor
= intern ("cursor");
7881 staticpro (&Qcursor
);
7882 Qborder
= intern ("border");
7883 staticpro (&Qborder
);
7884 Qmouse
= intern ("mouse");
7885 staticpro (&Qmouse
);
7886 Qmode_line_inactive
= intern ("mode-line-inactive");
7887 staticpro (&Qmode_line_inactive
);
7888 Qtty_color_desc
= intern ("tty-color-desc");
7889 staticpro (&Qtty_color_desc
);
7890 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7891 staticpro (&Qtty_color_standard_values
);
7892 Qtty_color_by_index
= intern ("tty-color-by-index");
7893 staticpro (&Qtty_color_by_index
);
7894 Qtty_color_alist
= intern ("tty-color-alist");
7895 staticpro (&Qtty_color_alist
);
7896 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7897 staticpro (&Qscalable_fonts_allowed
);
7899 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7900 staticpro (&Vparam_value_alist
);
7901 Vface_alternative_font_family_alist
= Qnil
;
7902 staticpro (&Vface_alternative_font_family_alist
);
7903 Vface_alternative_font_registry_alist
= Qnil
;
7904 staticpro (&Vface_alternative_font_registry_alist
);
7906 defsubr (&Sinternal_make_lisp_face
);
7907 defsubr (&Sinternal_lisp_face_p
);
7908 defsubr (&Sinternal_set_lisp_face_attribute
);
7909 #ifdef HAVE_WINDOW_SYSTEM
7910 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7912 defsubr (&Scolor_gray_p
);
7913 defsubr (&Scolor_supported_p
);
7914 defsubr (&Sface_attribute_relative_p
);
7915 defsubr (&Smerge_face_attribute
);
7916 defsubr (&Sinternal_get_lisp_face_attribute
);
7917 defsubr (&Sinternal_lisp_face_attribute_values
);
7918 defsubr (&Sinternal_lisp_face_equal_p
);
7919 defsubr (&Sinternal_lisp_face_empty_p
);
7920 defsubr (&Sinternal_copy_lisp_face
);
7921 defsubr (&Sinternal_merge_in_global_face
);
7922 defsubr (&Sface_font
);
7923 defsubr (&Sframe_face_alist
);
7924 defsubr (&Sdisplay_supports_face_attributes_p
);
7925 defsubr (&Scolor_distance
);
7926 defsubr (&Sinternal_set_font_selection_order
);
7927 defsubr (&Sinternal_set_alternative_font_family_alist
);
7928 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7929 defsubr (&Sface_attributes_as_vector
);
7931 defsubr (&Sdump_face
);
7932 defsubr (&Sshow_face_resources
);
7933 #endif /* GLYPH_DEBUG */
7934 defsubr (&Sclear_face_cache
);
7935 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7937 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7938 defsubr (&Sdump_colors
);
7941 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7942 doc
: /* *Limit for font matching.
7943 If an integer > 0, font matching functions won't load more than
7944 that number of fonts when searching for a matching font. */);
7945 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7947 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7948 doc
: /* List of global face definitions (for internal use only.) */);
7949 Vface_new_frame_defaults
= Qnil
;
7951 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7952 doc
: /* *Default stipple pattern used on monochrome displays.
7953 This stipple pattern is used on monochrome displays
7954 instead of shades of gray for a face background color.
7955 See `set-face-stipple' for possible values for this variable. */);
7956 Vface_default_stipple
= build_string ("gray3");
7958 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7959 doc
: /* An alist of defined terminal colors and their RGB values. */);
7960 Vtty_defined_color_alist
= Qnil
;
7962 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7963 doc
: /* Allowed scalable fonts.
7964 A value of nil means don't allow any scalable fonts.
7965 A value of t means allow any scalable font.
7966 Otherwise, value must be a list of regular expressions. A font may be
7967 scaled if its name matches a regular expression in the list.
7968 Note that if value is nil, a scalable font might still be used, if no
7969 other font of the appropriate family and registry is available. */);
7970 Vscalable_fonts_allowed
= Qnil
;
7972 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7973 doc
: /* List of ignored fonts.
7974 Each element is a regular expression that matches names of fonts to
7976 Vface_ignored_fonts
= Qnil
;
7978 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7979 doc
: /* Alist of fonts vs the rescaling factors.
7980 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7981 FONT-NAME-PATTERN is a regular expression matching a font name, and
7982 RESCALE-RATIO is a floating point number to specify how much larger
7983 \(or smaller) font we should use. For instance, if a face requests
7984 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7985 Vface_font_rescale_alist
= Qnil
;
7987 #ifdef HAVE_WINDOW_SYSTEM
7988 defsubr (&Sbitmap_spec_p
);
7989 defsubr (&Sx_list_fonts
);
7990 defsubr (&Sinternal_face_x_get_resource
);
7991 defsubr (&Sx_family_fonts
);
7992 defsubr (&Sx_font_family_list
);
7993 #endif /* HAVE_WINDOW_SYSTEM */
7996 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7997 (do not change this comment) */