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. */
464 static void map_tty_color
P_ ((struct frame
*, struct face
*,
465 enum lface_attribute_index
, int *));
466 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
467 static int may_use_scalable_font_p
P_ ((const char *));
468 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
469 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
471 static int x_face_list_fonts
P_ ((struct frame
*, char *,
472 struct font_name
**, int, int));
473 static int font_scalable_p
P_ ((struct font_name
*));
474 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
475 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
476 static unsigned char *xstrlwr
P_ ((unsigned char *));
477 static void signal_error
P_ ((char *, Lisp_Object
));
478 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
479 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
480 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
481 static void free_face_colors
P_ ((struct frame
*, struct face
*));
482 static int face_color_gray_p
P_ ((struct frame
*, char *));
483 static char *build_font_name
P_ ((struct font_name
*));
484 static void free_font_names
P_ ((struct font_name
*, int));
485 static int sorted_font_list
P_ ((struct frame
*, char *,
486 int (*cmpfn
) P_ ((const void *, const void *)),
487 struct font_name
**));
488 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
489 Lisp_Object
, struct font_name
**));
490 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
491 Lisp_Object
, struct font_name
**));
492 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
493 Lisp_Object
, Lisp_Object
, struct font_name
**,
495 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
496 Lisp_Object
, struct font_name
**));
497 static int cmp_font_names
P_ ((const void *, const void *));
498 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
499 struct face
*, int));
500 static struct face
*realize_x_face
P_ ((struct face_cache
*,
501 Lisp_Object
*, int, struct face
*));
502 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
503 Lisp_Object
*, int));
504 static int realize_basic_faces
P_ ((struct frame
*));
505 static int realize_default_face
P_ ((struct frame
*));
506 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
507 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
508 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
509 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
510 static unsigned lface_hash
P_ ((Lisp_Object
*));
511 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
512 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
513 static void free_realized_face
P_ ((struct frame
*, struct face
*));
514 static void clear_face_gcs
P_ ((struct face_cache
*));
515 static void free_face_cache
P_ ((struct face_cache
*));
516 static int face_numeric_weight
P_ ((Lisp_Object
));
517 static int face_numeric_slant
P_ ((Lisp_Object
));
518 static int face_numeric_swidth
P_ ((Lisp_Object
));
519 static int face_fontset
P_ ((Lisp_Object
*));
520 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
521 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*, Lisp_Object
));
522 static void merge_face_inheritance
P_ ((struct frame
*f
, Lisp_Object
,
523 Lisp_Object
*, Lisp_Object
));
524 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
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 If FRAME is nil or omitted, use the selected frame.
1548 COLOR must be a valid color name. */)
1549 (color
, frame
, background_p
)
1550 Lisp_Object frame
, color
, background_p
;
1554 CHECK_STRING (color
);
1556 frame
= selected_frame
;
1558 CHECK_FRAME (frame
);
1560 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1566 /* Load color with name NAME for use by face FACE on frame F.
1567 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1568 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1569 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1570 pixel color. If color cannot be loaded, display a message, and
1571 return the foreground, background or underline color of F, but
1572 record that fact in flags of the face so that we don't try to free
1576 load_color (f
, face
, name
, target_index
)
1580 enum lface_attribute_index target_index
;
1584 xassert (STRINGP (name
));
1585 xassert (target_index
== LFACE_FOREGROUND_INDEX
1586 || target_index
== LFACE_BACKGROUND_INDEX
1587 || target_index
== LFACE_UNDERLINE_INDEX
1588 || target_index
== LFACE_OVERLINE_INDEX
1589 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1590 || target_index
== LFACE_BOX_INDEX
);
1592 /* if the color map is full, defined_color will return a best match
1593 to the values in an existing cell. */
1594 if (!defined_color (f
, SDATA (name
), &color
, 1))
1596 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1598 switch (target_index
)
1600 case LFACE_FOREGROUND_INDEX
:
1601 face
->foreground_defaulted_p
= 1;
1602 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1605 case LFACE_BACKGROUND_INDEX
:
1606 face
->background_defaulted_p
= 1;
1607 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1610 case LFACE_UNDERLINE_INDEX
:
1611 face
->underline_defaulted_p
= 1;
1612 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1615 case LFACE_OVERLINE_INDEX
:
1616 face
->overline_color_defaulted_p
= 1;
1617 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1620 case LFACE_STRIKE_THROUGH_INDEX
:
1621 face
->strike_through_color_defaulted_p
= 1;
1622 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1625 case LFACE_BOX_INDEX
:
1626 face
->box_color_defaulted_p
= 1;
1627 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1636 ++ncolors_allocated
;
1643 #ifdef HAVE_WINDOW_SYSTEM
1645 /* Load colors for face FACE which is used on frame F. Colors are
1646 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1647 of ATTRS. If the background color specified is not supported on F,
1648 try to emulate gray colors with a stipple from Vface_default_stipple. */
1651 load_face_colors (f
, face
, attrs
)
1658 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1659 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1661 /* Swap colors if face is inverse-video. */
1662 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1670 /* Check for support for foreground, not for background because
1671 face_color_supported_p is smart enough to know that grays are
1672 "supported" as background because we are supposed to use stipple
1674 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1675 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1677 x_destroy_bitmap (f
, face
->stipple
);
1678 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1679 &face
->pixmap_w
, &face
->pixmap_h
);
1682 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1683 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1687 /* Free color PIXEL on frame F. */
1690 unload_color (f
, pixel
)
1692 unsigned long pixel
;
1694 #ifdef HAVE_X_WINDOWS
1698 x_free_colors (f
, &pixel
, 1);
1705 /* Free colors allocated for FACE. */
1708 free_face_colors (f
, face
)
1712 #ifdef HAVE_X_WINDOWS
1713 if (face
->colors_copied_bitwise_p
)
1718 if (!face
->foreground_defaulted_p
)
1720 x_free_colors (f
, &face
->foreground
, 1);
1721 IF_DEBUG (--ncolors_allocated
);
1724 if (!face
->background_defaulted_p
)
1726 x_free_colors (f
, &face
->background
, 1);
1727 IF_DEBUG (--ncolors_allocated
);
1730 if (face
->underline_p
1731 && !face
->underline_defaulted_p
)
1733 x_free_colors (f
, &face
->underline_color
, 1);
1734 IF_DEBUG (--ncolors_allocated
);
1737 if (face
->overline_p
1738 && !face
->overline_color_defaulted_p
)
1740 x_free_colors (f
, &face
->overline_color
, 1);
1741 IF_DEBUG (--ncolors_allocated
);
1744 if (face
->strike_through_p
1745 && !face
->strike_through_color_defaulted_p
)
1747 x_free_colors (f
, &face
->strike_through_color
, 1);
1748 IF_DEBUG (--ncolors_allocated
);
1751 if (face
->box
!= FACE_NO_BOX
1752 && !face
->box_color_defaulted_p
)
1754 x_free_colors (f
, &face
->box_color
, 1);
1755 IF_DEBUG (--ncolors_allocated
);
1759 #endif /* HAVE_X_WINDOWS */
1762 #endif /* HAVE_WINDOW_SYSTEM */
1766 /***********************************************************************
1768 ***********************************************************************/
1770 /* An enumerator for each field of an XLFD font name. */
1791 /* An enumerator for each possible slant value of a font. Taken from
1792 the XLFD specification. */
1800 XLFD_SLANT_REVERSE_ITALIC
,
1801 XLFD_SLANT_REVERSE_OBLIQUE
,
1805 /* Relative font weight according to XLFD documentation. */
1809 XLFD_WEIGHT_UNKNOWN
,
1810 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1811 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1812 XLFD_WEIGHT_LIGHT
, /* 30 */
1813 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1814 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1815 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1816 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1817 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1818 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1821 /* Relative proportionate width. */
1825 XLFD_SWIDTH_UNKNOWN
,
1826 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1827 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1828 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1829 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1830 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1831 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1832 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1833 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1834 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1837 /* Structure used for tables mapping XLFD weight, slant, and width
1838 names to numeric and symbolic values. */
1844 Lisp_Object
*symbol
;
1847 /* Table of XLFD slant names and their numeric and symbolic
1848 representations. This table must be sorted by slant names in
1851 static struct table_entry slant_table
[] =
1853 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1854 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1855 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1856 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1857 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1858 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1861 /* Table of XLFD weight names. This table must be sorted by weight
1862 names in ascending order. */
1864 static struct table_entry weight_table
[] =
1866 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1867 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1868 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1869 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1870 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1871 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1872 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1873 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1874 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1875 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1876 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1877 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1878 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1879 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1880 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1881 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1884 /* Table of XLFD width names. This table must be sorted by width
1885 names in ascending order. */
1887 static struct table_entry swidth_table
[] =
1889 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1890 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1891 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1892 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1893 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1894 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1895 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1896 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1897 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1898 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1899 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1900 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1901 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1902 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1903 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1906 /* Structure used to hold the result of splitting font names in XLFD
1907 format into their fields. */
1911 /* The original name which is modified destructively by
1912 split_font_name. The pointer is kept here to be able to free it
1913 if it was allocated from the heap. */
1916 /* Font name fields. Each vector element points into `name' above.
1917 Fields are NUL-terminated. */
1918 char *fields
[XLFD_LAST
];
1920 /* Numeric values for those fields that interest us. See
1921 split_font_name for which these are. */
1922 int numeric
[XLFD_LAST
];
1924 /* If the original name matches one of Vface_font_rescale_alist,
1925 the value is the corresponding rescale ratio. Otherwise, the
1927 double rescale_ratio
;
1929 /* Lower value mean higher priority. */
1930 int registry_priority
;
1933 /* The frame in effect when sorting font names. Set temporarily in
1934 sort_fonts so that it is available in font comparison functions. */
1936 static struct frame
*font_frame
;
1938 /* Order by which font selection chooses fonts. The default values
1939 mean `first, find a best match for the font width, then for the
1940 font height, then for weight, then for slant.' This variable can be
1941 set via set-face-font-sort-order. */
1944 static int font_sort_order
[4] = {
1945 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1948 static int font_sort_order
[4];
1951 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1952 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1953 is a pointer to the matching table entry or null if no table entry
1956 static struct table_entry
*
1957 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1958 struct table_entry
*table
;
1960 struct font_name
*font
;
1963 /* Function split_font_name converts fields to lower-case, so there
1964 is no need to use xstrlwr or xstricmp here. */
1965 char *s
= font
->fields
[field_index
];
1966 int low
, mid
, high
, cmp
;
1973 mid
= (low
+ high
) / 2;
1974 cmp
= strcmp (table
[mid
].name
, s
);
1988 /* Return a numeric representation for font name field
1989 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1990 has DIM entries. Value is the numeric value found or DFLT if no
1991 table entry matches. This function is used to translate weight,
1992 slant, and swidth names of XLFD font names to numeric values. */
1995 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1996 struct table_entry
*table
;
1998 struct font_name
*font
;
2002 struct table_entry
*p
;
2003 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2004 return p
? p
->numeric
: dflt
;
2008 /* Return a symbolic representation for font name field
2009 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2010 has DIM entries. Value is the symbolic value found or DFLT if no
2011 table entry matches. This function is used to translate weight,
2012 slant, and swidth names of XLFD font names to symbols. */
2014 static INLINE Lisp_Object
2015 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2016 struct table_entry
*table
;
2018 struct font_name
*font
;
2022 struct table_entry
*p
;
2023 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2024 return p
? *p
->symbol
: dflt
;
2028 /* Return a numeric value for the slant of the font given by FONT. */
2031 xlfd_numeric_slant (font
)
2032 struct font_name
*font
;
2034 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2035 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2039 /* Return a symbol representing the weight of the font given by FONT. */
2041 static INLINE Lisp_Object
2042 xlfd_symbolic_slant (font
)
2043 struct font_name
*font
;
2045 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2046 font
, XLFD_SLANT
, Qnormal
);
2050 /* Return a numeric value for the weight of the font given by FONT. */
2053 xlfd_numeric_weight (font
)
2054 struct font_name
*font
;
2056 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2057 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2061 /* Return a symbol representing the slant of the font given by FONT. */
2063 static INLINE Lisp_Object
2064 xlfd_symbolic_weight (font
)
2065 struct font_name
*font
;
2067 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2068 font
, XLFD_WEIGHT
, Qnormal
);
2072 /* Return a numeric value for the swidth of the font whose XLFD font
2073 name fields are found in FONT. */
2076 xlfd_numeric_swidth (font
)
2077 struct font_name
*font
;
2079 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2080 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2084 /* Return a symbolic value for the swidth of FONT. */
2086 static INLINE Lisp_Object
2087 xlfd_symbolic_swidth (font
)
2088 struct font_name
*font
;
2090 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2091 font
, XLFD_SWIDTH
, Qnormal
);
2095 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2096 entries. Value is a pointer to the matching table entry or null if
2097 no element of TABLE contains SYMBOL. */
2099 static struct table_entry
*
2100 face_value (table
, dim
, symbol
)
2101 struct table_entry
*table
;
2107 xassert (SYMBOLP (symbol
));
2109 for (i
= 0; i
< dim
; ++i
)
2110 if (EQ (*table
[i
].symbol
, symbol
))
2113 return i
< dim
? table
+ i
: NULL
;
2117 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2118 entries. Value is -1 if SYMBOL is not found in TABLE. */
2121 face_numeric_value (table
, dim
, symbol
)
2122 struct table_entry
*table
;
2126 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2127 return p
? p
->numeric
: -1;
2131 /* Return a numeric value representing the weight specified by Lisp
2132 symbol WEIGHT. Value is one of the enumerators of enum
2136 face_numeric_weight (weight
)
2139 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2143 /* Return a numeric value representing the slant specified by Lisp
2144 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2147 face_numeric_slant (slant
)
2150 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2154 /* Return a numeric value representing the swidth specified by Lisp
2155 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2158 face_numeric_swidth (width
)
2161 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2165 #ifdef HAVE_WINDOW_SYSTEM
2167 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2171 struct font_name
*font
;
2173 /* Function split_font_name converts fields to lower-case, so there
2174 is no need to use tolower here. */
2175 return *font
->fields
[XLFD_SPACING
] != 'p';
2179 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2181 The actual height of the font when displayed on F depends on the
2182 resolution of both the font and frame. For example, a 10pt font
2183 designed for a 100dpi display will display larger than 10pt on a
2184 75dpi display. (It's not unusual to use fonts not designed for the
2185 display one is using. For example, some intlfonts are available in
2186 72dpi versions, only.)
2188 Value is the real point size of FONT on frame F, or 0 if it cannot
2192 xlfd_point_size (f
, font
)
2194 struct font_name
*font
;
2196 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2197 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2201 if (*pixel_field
== '[')
2203 /* The pixel size field is `[A B C D]' which specifies
2204 a transformation matrix.
2210 by which all glyphs of the font are transformed. The spec
2211 says that s scalar value N for the pixel size is equivalent
2212 to A = N * resx/resy, B = C = 0, D = N. */
2213 char *start
= pixel_field
+ 1, *end
;
2217 for (i
= 0; i
< 4; ++i
)
2219 matrix
[i
] = strtod (start
, &end
);
2226 pixel
= atoi (pixel_field
);
2231 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2237 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2238 of frame F. This function is used to guess a point size of font
2239 when only the pixel height of the font is available. */
2242 pixel_point_size (f
, pixel
)
2246 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2250 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2251 point size of one dot. */
2252 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2253 int_pt
= real_pt
+ 0.5;
2259 /* Return a rescaling ratio of a font of NAME. */
2262 font_rescale_ratio (name
)
2265 Lisp_Object tail
, elt
;
2267 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2270 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2271 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2272 return XFLOAT_DATA (XCDR (elt
));
2278 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2279 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2280 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2281 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2282 zero if the font name doesn't have the format we expect. The
2283 expected format is a font name that starts with a `-' and has
2284 XLFD_LAST fields separated by `-'. */
2287 split_font_name (f
, font
, numeric_p
)
2289 struct font_name
*font
;
2294 double rescale_ratio
;
2297 /* This must be done before splitting the font name. */
2298 rescale_ratio
= font_rescale_ratio (font
->name
);
2300 if (*font
->name
== '-')
2302 char *p
= xstrlwr (font
->name
) + 1;
2304 while (i
< XLFD_LAST
)
2306 font
->fields
[i
] = p
;
2309 /* Pixel and point size may be of the form `[....]'. For
2310 BNF, see XLFD spec, chapter 4. Negative values are
2311 indicated by tilde characters which we replace with
2312 `-' characters, here. */
2314 && (i
- 1 == XLFD_PIXEL_SIZE
2315 || i
- 1 == XLFD_POINT_SIZE
))
2320 for (++p
; *p
&& *p
!= ']'; ++p
)
2324 /* Check that the matrix contains 4 floating point
2326 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2329 if (strtod (start
, &end
) == 0 && start
== end
)
2336 while (*p
&& *p
!= '-')
2346 success_p
= i
== XLFD_LAST
;
2348 /* If requested, and font name was in the expected format,
2349 compute numeric values for some fields. */
2350 if (numeric_p
&& success_p
)
2352 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2353 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2354 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2355 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2356 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2357 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2358 font
->rescale_ratio
= rescale_ratio
;
2361 /* Initialize it to zero. It will be overridden by font_list while
2362 trying alternate registries. */
2363 font
->registry_priority
= 0;
2369 /* Build an XLFD font name from font name fields in FONT. Value is a
2370 pointer to the font name, which is allocated via xmalloc. */
2373 build_font_name (font
)
2374 struct font_name
*font
;
2378 char *font_name
= (char *) xmalloc (size
);
2379 int total_length
= 0;
2381 for (i
= 0; i
< XLFD_LAST
; ++i
)
2383 /* Add 1 because of the leading `-'. */
2384 int len
= strlen (font
->fields
[i
]) + 1;
2386 /* Reallocate font_name if necessary. Add 1 for the final
2388 if (total_length
+ len
+ 1 >= size
)
2390 int new_size
= max (2 * size
, size
+ len
+ 1);
2391 int sz
= new_size
* sizeof *font_name
;
2392 font_name
= (char *) xrealloc (font_name
, sz
);
2396 font_name
[total_length
] = '-';
2397 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2398 total_length
+= len
;
2401 font_name
[total_length
] = 0;
2406 /* Free an array FONTS of N font_name structures. This frees FONTS
2407 itself and all `name' fields in its elements. */
2410 free_font_names (fonts
, n
)
2411 struct font_name
*fonts
;
2415 xfree (fonts
[--n
].name
);
2420 /* Sort vector FONTS of font_name structures which contains NFONTS
2421 elements using qsort and comparison function CMPFN. F is the frame
2422 on which the fonts will be used. The global variable font_frame
2423 is temporarily set to F to make it available in CMPFN. */
2426 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2428 struct font_name
*fonts
;
2430 int (*cmpfn
) P_ ((const void *, const void *));
2433 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2438 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2439 display in x_display_list. FONTS is a pointer to a vector of
2440 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2441 alternative patterns from Valternate_fontname_alist if no fonts are
2442 found matching PATTERN.
2444 For all fonts found, set FONTS[i].name to the name of the font,
2445 allocated via xmalloc, and split font names into fields. Ignore
2446 fonts that we can't parse. Value is the number of fonts found. */
2449 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2452 struct font_name
**pfonts
;
2453 int nfonts
, try_alternatives_p
;
2457 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2458 better to do it the other way around. */
2460 Lisp_Object lpattern
, tem
;
2461 struct font_name
*fonts
= 0;
2462 int num_fonts
= nfonts
;
2465 lpattern
= build_string (pattern
);
2467 /* Get the list of fonts matching PATTERN. */
2470 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2473 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2476 if (nfonts
< 0 && CONSP (lfonts
))
2477 num_fonts
= XFASTINT (Flength (lfonts
));
2479 /* Make a copy of the font names we got from X, and
2480 split them into fields. */
2482 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2484 Lisp_Object elt
, tail
;
2485 const char *name
= SDATA (XCAR (tem
));
2487 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2488 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2492 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2503 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2507 /* Make a copy of the font name. */
2508 fonts
[n
].name
= xstrdup (name
);
2510 if (split_font_name (f
, fonts
+ n
, 1))
2512 if (font_scalable_p (fonts
+ n
)
2513 && !may_use_scalable_font_p (name
))
2516 xfree (fonts
[n
].name
);
2522 xfree (fonts
[n
].name
);
2525 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2526 if (n
== 0 && try_alternatives_p
)
2528 Lisp_Object list
= Valternate_fontname_alist
;
2536 while (CONSP (list
))
2538 Lisp_Object entry
= XCAR (list
);
2540 && STRINGP (XCAR (entry
))
2541 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2548 Lisp_Object patterns
= XCAR (list
);
2551 while (CONSP (patterns
)
2552 /* If list is screwed up, give up. */
2553 && (name
= XCAR (patterns
),
2555 /* Ignore patterns equal to PATTERN because we tried that
2556 already with no success. */
2557 && (strcmp (SDATA (name
), pattern
) == 0
2558 || (n
= x_face_list_fonts (f
, SDATA (name
),
2561 patterns
= XCDR (patterns
);
2569 /* Check if a font matching pattern_offset_t on frame F is available
2570 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2571 a font name pattern is generated from FAMILY and REGISTRY. */
2574 face_font_available_p (f
, pattern
)
2576 Lisp_Object pattern
;
2580 if (! STRINGP (pattern
))
2582 Lisp_Object family
, registry
;
2583 char *family_str
, *registry_str
, *pattern_str
;
2585 CHECK_CONS (pattern
);
2586 family
= XCAR (pattern
);
2591 CHECK_STRING (family
);
2592 family_str
= (char *) SDATA (family
);
2594 registry
= XCDR (pattern
);
2595 if (NILP (registry
))
2599 CHECK_STRING (registry
);
2600 registry_str
= (char *) SDATA (registry
);
2603 pattern_str
= (char *) alloca (strlen (family_str
)
2604 + strlen (registry_str
)
2606 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2607 strcat (pattern_str
, family_str
);
2608 strcat (pattern_str
, "-*-");
2609 strcat (pattern_str
, registry_str
);
2610 if (!index (registry_str
, '-'))
2612 if (registry_str
[strlen (registry_str
) - 1] == '*')
2613 strcat (pattern_str
, "-*");
2615 strcat (pattern_str
, "*-*");
2617 pattern
= build_string (pattern_str
);
2620 /* Get the list of fonts matching PATTERN. */
2623 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2626 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2628 return XINT (Flength (fonts
));
2632 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2633 using comparison function CMPFN. Value is the number of fonts
2634 found. If value is non-zero, *FONTS is set to a vector of
2635 font_name structures allocated from the heap containing matching
2636 fonts. Each element of *FONTS contains a name member that is also
2637 allocated from the heap. Font names in these structures are split
2638 into fields. Use free_font_names to free such an array. */
2641 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2644 int (*cmpfn
) P_ ((const void *, const void *));
2645 struct font_name
**fonts
;
2649 /* Get the list of fonts matching pattern. 100 should suffice. */
2650 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2651 if (INTEGERP (Vfont_list_limit
))
2652 nfonts
= XINT (Vfont_list_limit
);
2655 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2657 /* Sort the resulting array and return it in *FONTS. If no
2658 fonts were found, make sure to set *FONTS to null. */
2660 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2671 /* Compare two font_name structures *A and *B. Value is analogous to
2672 strcmp. Sort order is given by the global variable
2673 font_sort_order. Font names are sorted so that, everything else
2674 being equal, fonts with a resolution closer to that of the frame on
2675 which they are used are listed first. The global variable
2676 font_frame is the frame on which we operate. */
2679 cmp_font_names (a
, b
)
2682 struct font_name
*x
= (struct font_name
*) a
;
2683 struct font_name
*y
= (struct font_name
*) b
;
2686 /* All strings have been converted to lower-case by split_font_name,
2687 so we can use strcmp here. */
2688 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2693 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2695 int j
= font_sort_order
[i
];
2696 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2701 /* Everything else being equal, we prefer fonts with an
2702 y-resolution closer to that of the frame. */
2703 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2704 int x_resy
= x
->numeric
[XLFD_RESY
];
2705 int y_resy
= y
->numeric
[XLFD_RESY
];
2706 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2714 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2715 is non-nil list fonts matching that pattern. Otherwise, if
2716 REGISTRY is non-nil return only fonts with that registry, otherwise
2717 return fonts of any registry. Set *FONTS to a vector of font_name
2718 structures allocated from the heap containing the fonts found.
2719 Value is the number of fonts found. */
2722 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2724 Lisp_Object pattern
, family
, registry
;
2725 struct font_name
**fonts
;
2727 char *pattern_str
, *family_str
, *registry_str
;
2731 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2732 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2734 pattern_str
= (char *) alloca (strlen (family_str
)
2735 + strlen (registry_str
)
2737 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2738 strcat (pattern_str
, family_str
);
2739 strcat (pattern_str
, "-*-");
2740 strcat (pattern_str
, registry_str
);
2741 if (!index (registry_str
, '-'))
2743 if (registry_str
[strlen (registry_str
) - 1] == '*')
2744 strcat (pattern_str
, "-*");
2746 strcat (pattern_str
, "*-*");
2750 pattern_str
= (char *) SDATA (pattern
);
2752 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2756 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2757 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2758 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2761 static struct font_name
*
2762 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2763 struct font_name
*fonts1
, *fonts2
;
2764 int nfonts1
, nfonts2
;
2766 int new_nfonts
= nfonts1
+ nfonts2
;
2767 struct font_name
*new_fonts
;
2769 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2770 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2771 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2778 /* Get a sorted list of fonts of family FAMILY on frame F.
2780 If PATTERN is non-nil list fonts matching that pattern.
2782 If REGISTRY is non-nil, return fonts with that registry and the
2783 alternative registries from Vface_alternative_font_registry_alist.
2785 If REGISTRY is nil return fonts of any registry.
2787 Set *FONTS to a vector of font_name structures allocated from the
2788 heap containing the fonts found. Value is the number of fonts
2792 font_list (f
, pattern
, family
, registry
, fonts
)
2794 Lisp_Object pattern
, family
, registry
;
2795 struct font_name
**fonts
;
2797 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2799 if (!NILP (registry
)
2800 && CONSP (Vface_alternative_font_registry_alist
))
2804 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2809 for (alter
= XCDR (alter
), reg_prio
= 1;
2811 alter
= XCDR (alter
), reg_prio
++)
2812 if (STRINGP (XCAR (alter
)))
2815 struct font_name
*fonts2
;
2817 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2819 for (i
= 0; i
< nfonts2
; i
++)
2820 fonts2
[i
].registry_priority
= reg_prio
;
2821 *fonts
= (nfonts
> 0
2822 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2833 /* Remove elements from LIST whose cars are `equal'. Called from
2834 x-family-fonts and x-font-family-list to remove duplicate font
2838 remove_duplicates (list
)
2841 Lisp_Object tail
= list
;
2843 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2845 Lisp_Object next
= XCDR (tail
);
2846 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2847 XSETCDR (tail
, XCDR (next
));
2854 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2855 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2856 If FAMILY is omitted or nil, list all families.
2857 Otherwise, FAMILY must be a string, possibly containing wildcards
2859 If FRAME is omitted or nil, use the selected frame.
2860 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2861 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2862 FAMILY is the font family name. POINT-SIZE is the size of the
2863 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2864 width, weight and slant of the font. These symbols are the same as for
2865 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2866 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2867 giving the registry and encoding of the font.
2868 The result list is sorted according to the current setting of
2869 the face font sort order. */)
2871 Lisp_Object family
, frame
;
2873 struct frame
*f
= check_x_frame (frame
);
2874 struct font_name
*fonts
;
2877 struct gcpro gcpro1
;
2880 CHECK_STRING (family
);
2884 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2885 for (i
= nfonts
- 1; i
>= 0; --i
)
2887 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2890 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2891 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2892 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2893 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2894 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2895 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2896 tem
= build_font_name (fonts
+ i
);
2897 ASET (v
, 6, build_string (tem
));
2898 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2899 fonts
[i
].fields
[XLFD_ENCODING
]);
2900 ASET (v
, 7, build_string (tem
));
2903 result
= Fcons (v
, result
);
2906 remove_duplicates (result
);
2907 free_font_names (fonts
, nfonts
);
2913 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2915 doc
: /* Return a list of available font families on FRAME.
2916 If FRAME is omitted or nil, use the selected frame.
2917 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2918 is a font family, and FIXED-P is non-nil if fonts of that family
2919 are fixed-pitch. */)
2923 struct frame
*f
= check_x_frame (frame
);
2925 struct font_name
*fonts
;
2927 struct gcpro gcpro1
;
2928 int count
= SPECPDL_INDEX ();
2930 /* Let's consider all fonts. */
2931 specbind (intern ("font-list-limit"), make_number (-1));
2932 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2936 for (i
= nfonts
- 1; i
>= 0; --i
)
2937 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2938 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2941 remove_duplicates (result
);
2942 free_font_names (fonts
, nfonts
);
2944 return unbind_to (count
, result
);
2948 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2949 doc
: /* Return a list of the names of available fonts matching PATTERN.
2950 If optional arguments FACE and FRAME are specified, return only fonts
2951 the same size as FACE on FRAME.
2952 PATTERN is a string, perhaps with wildcard characters;
2953 the * character matches any substring, and
2954 the ? character matches any single character.
2955 PATTERN is case-insensitive.
2956 FACE is a face name--a symbol.
2958 The return value is a list of strings, suitable as arguments to
2961 Fonts Emacs can't use may or may not be excluded
2962 even if they match PATTERN and FACE.
2963 The optional fourth argument MAXIMUM sets a limit on how many
2964 fonts to match. The first MAXIMUM fonts are reported.
2965 The optional fifth argument WIDTH, if specified, is a number of columns
2966 occupied by a character of a font. In that case, return only fonts
2967 the WIDTH times as wide as FACE on FRAME. */)
2968 (pattern
, face
, frame
, maximum
, width
)
2969 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2976 CHECK_STRING (pattern
);
2982 CHECK_NATNUM (maximum
);
2983 maxnames
= XINT (maximum
);
2987 CHECK_NUMBER (width
);
2989 /* We can't simply call check_x_frame because this function may be
2990 called before any frame is created. */
2991 f
= frame_or_selected_frame (frame
, 2);
2992 if (!FRAME_WINDOW_P (f
))
2994 /* Perhaps we have not yet created any frame. */
2999 /* Determine the width standard for comparison with the fonts we find. */
3005 /* This is of limited utility since it works with character
3006 widths. Keep it for compatibility. --gerd. */
3007 int face_id
= lookup_named_face (f
, face
, 0);
3008 struct face
*face
= (face_id
< 0
3010 : FACE_FROM_ID (f
, face_id
));
3013 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3014 not maximum as on X. Redefine here. */
3016 #define FONT_WIDTH FONT_MAX_WIDTH
3019 if (face
&& face
->font
)
3020 size
= FONT_WIDTH (face
->font
);
3022 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3025 size
*= XINT (width
);
3029 Lisp_Object args
[2];
3031 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3033 /* We don't have to check fontsets. */
3035 args
[1] = list_fontsets (f
, pattern
, size
);
3036 return Fnconc (2, args
);
3040 #endif /* HAVE_WINDOW_SYSTEM */
3044 /***********************************************************************
3046 ***********************************************************************/
3048 /* Access face attributes of face LFACE, a Lisp vector. */
3050 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3051 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3052 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3053 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3054 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3055 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3056 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3057 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3058 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3059 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3060 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3061 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3062 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3063 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3064 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3065 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3067 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3068 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3070 #define LFACEP(LFACE) \
3072 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3073 && EQ (AREF (LFACE, 0), Qface))
3078 /* Check consistency of Lisp face attribute vector ATTRS. */
3081 check_lface_attrs (attrs
)
3084 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3085 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3086 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3087 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3088 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3089 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3090 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3091 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3092 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3093 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3094 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3095 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3096 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3097 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3098 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3099 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3100 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3101 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3102 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3103 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3104 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3105 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3106 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3107 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3108 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3109 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3110 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3111 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3112 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3113 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3114 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3115 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3116 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3117 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3118 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3119 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3120 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3121 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3122 #ifdef HAVE_WINDOW_SYSTEM
3123 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3124 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3125 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3126 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3127 || NILP (attrs
[LFACE_FONT_INDEX
])
3128 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3133 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3141 xassert (LFACEP (lface
));
3142 check_lface_attrs (XVECTOR (lface
)->contents
);
3146 #else /* GLYPH_DEBUG == 0 */
3148 #define check_lface_attrs(attrs) (void) 0
3149 #define check_lface(lface) (void) 0
3151 #endif /* GLYPH_DEBUG == 0 */
3154 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3155 to make it a symvol. If FACE_NAME is an alias for another face,
3156 return that face's name. */
3159 resolve_face_name (face_name
)
3160 Lisp_Object face_name
;
3162 Lisp_Object aliased
;
3164 if (STRINGP (face_name
))
3165 face_name
= intern (SDATA (face_name
));
3167 while (SYMBOLP (face_name
))
3169 aliased
= Fget (face_name
, Qface_alias
);
3173 face_name
= aliased
;
3180 /* Return the face definition of FACE_NAME on frame F. F null means
3181 return the definition for new frames. FACE_NAME may be a string or
3182 a symbol (apparently Emacs 20.2 allowed strings as face names in
3183 face text properties; Ediff uses that). If FACE_NAME is an alias
3184 for another face, return that face's definition. If SIGNAL_P is
3185 non-zero, signal an error if FACE_NAME is not a valid face name.
3186 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3189 static INLINE Lisp_Object
3190 lface_from_face_name (f
, face_name
, signal_p
)
3192 Lisp_Object face_name
;
3197 face_name
= resolve_face_name (face_name
);
3200 lface
= assq_no_quit (face_name
, f
->face_alist
);
3202 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3205 lface
= XCDR (lface
);
3207 signal_error ("Invalid face", face_name
);
3209 check_lface (lface
);
3214 /* Get face attributes of face FACE_NAME from frame-local faces on
3215 frame F. Store the resulting attributes in ATTRS which must point
3216 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3217 is non-zero, signal an error if FACE_NAME does not name a face.
3218 Otherwise, value is zero if FACE_NAME is not a face. */
3221 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3223 Lisp_Object face_name
;
3230 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3233 bcopy (XVECTOR (lface
)->contents
, attrs
,
3234 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3244 /* Non-zero if all attributes in face attribute vector ATTRS are
3245 specified, i.e. are non-nil. */
3248 lface_fully_specified_p (attrs
)
3253 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3254 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3255 && i
!= LFACE_AVGWIDTH_INDEX
)
3256 if (UNSPECIFIEDP (attrs
[i
])
3258 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3259 always unspecified. */
3260 && i
!= LFACE_STIPPLE_INDEX
3265 return i
== LFACE_VECTOR_SIZE
;
3268 #ifdef HAVE_WINDOW_SYSTEM
3270 /* Set font-related attributes of Lisp face LFACE from the fullname of
3271 the font opened by FONTNAME. If FORCE_P is zero, set only
3272 unspecified attributes of LFACE. The exception is `font'
3273 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3275 If FONTNAME is not available on frame F,
3276 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3277 If the fullname is not in a valid XLFD format,
3278 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3279 in LFACE and return 1.
3280 Otherwise, return 1. */
3283 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3286 Lisp_Object fontname
;
3287 int force_p
, may_fail_p
;
3289 struct font_name font
;
3294 char *font_name
= SDATA (fontname
);
3295 struct font_info
*font_info
;
3297 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3298 fontset
= fs_query_fontset (fontname
, 0);
3300 font_name
= SDATA (fontset_ascii (fontset
));
3302 /* Check if FONT_NAME is surely available on the system. Usually
3303 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3304 returns quickly. But, even if FONT_NAME is not yet cached,
3305 caching it now is not futail because we anyway load the font
3308 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3318 font
.name
= STRDUPA (font_info
->full_name
);
3319 have_xlfd_p
= split_font_name (f
, &font
, 1);
3321 /* Set attributes only if unspecified, otherwise face defaults for
3322 new frames would never take effect. If we couldn't get a font
3323 name conforming to XLFD, set normal values. */
3325 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3330 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3331 + strlen (font
.fields
[XLFD_FOUNDRY
])
3333 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3334 font
.fields
[XLFD_FAMILY
]);
3335 val
= build_string (buffer
);
3338 val
= build_string ("*");
3339 LFACE_FAMILY (lface
) = val
;
3342 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3345 pt
= xlfd_point_size (f
, &font
);
3347 pt
= pixel_point_size (f
, font_info
->height
* 10);
3349 LFACE_HEIGHT (lface
) = make_number (pt
);
3352 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3353 LFACE_SWIDTH (lface
)
3354 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3356 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3357 LFACE_AVGWIDTH (lface
)
3359 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3362 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3363 LFACE_WEIGHT (lface
)
3364 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3366 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3368 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3370 LFACE_FONT (lface
) = fontname
;
3375 #endif /* HAVE_WINDOW_SYSTEM */
3378 /* Merges the face height FROM with the face height TO, and returns the
3379 merged height. If FROM is an invalid height, then INVALID is
3380 returned instead. FROM and TO may be either absolute face heights or
3381 `relative' heights; the returned value is always an absolute height
3382 unless both FROM and TO are relative. GCPRO is a lisp value that
3383 will be protected from garbage-collection if this function makes a
3387 merge_face_heights (from
, to
, invalid
, gcpro
)
3388 Lisp_Object from
, to
, invalid
, gcpro
;
3390 Lisp_Object result
= invalid
;
3392 if (INTEGERP (from
))
3393 /* FROM is absolute, just use it as is. */
3395 else if (FLOATP (from
))
3396 /* FROM is a scale, use it to adjust TO. */
3399 /* relative X absolute => absolute */
3400 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3401 else if (FLOATP (to
))
3402 /* relative X relative => relative */
3403 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3405 else if (FUNCTIONP (from
))
3406 /* FROM is a function, which use to adjust TO. */
3408 /* Call function with current height as argument.
3409 From is the new height. */
3410 Lisp_Object args
[2];
3411 struct gcpro gcpro1
;
3417 result
= safe_call (2, args
);
3421 /* Ensure that if TO was absolute, so is the result. */
3422 if (INTEGERP (to
) && !INTEGERP (result
))
3430 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3431 store the resulting attributes in TO, which must be already be
3432 completely specified and contain only absolute attributes. Every
3433 specified attribute of FROM overrides the corresponding attribute of
3434 TO; relative attributes in FROM are merged with the absolute value in
3435 TO and replace it. CYCLE_CHECK is used internally to detect loops in
3436 face inheritance; it should be Qnil when called from other places. */
3439 merge_face_vectors (f
, from
, to
, cycle_check
)
3441 Lisp_Object
*from
, *to
;
3442 Lisp_Object cycle_check
;
3446 /* If FROM inherits from some other faces, merge their attributes into
3447 TO before merging FROM's direct attributes. Note that an :inherit
3448 attribute of `unspecified' is the same as one of nil; we never
3449 merge :inherit attributes, so nil is more correct, but lots of
3450 other code uses `unspecified' as a generic value for face attributes. */
3451 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3452 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3453 merge_face_inheritance (f
, from
[LFACE_INHERIT_INDEX
], to
, cycle_check
);
3455 /* If TO specifies a :font attribute, and FROM specifies some
3456 font-related attribute, we need to clear TO's :font attribute
3457 (because it will be inconsistent with whatever FROM specifies, and
3458 FROM takes precedence). */
3459 if (!NILP (to
[LFACE_FONT_INDEX
])
3460 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3461 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3462 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3463 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3464 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3465 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3466 to
[LFACE_FONT_INDEX
] = Qnil
;
3468 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3469 if (!UNSPECIFIEDP (from
[i
]))
3471 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3472 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
], cycle_check
);
3477 /* TO is always an absolute face, which should inherit from nothing.
3478 We blindly copy the :inherit attribute above and fix it up here. */
3479 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3482 /* Merge face attributes from the face on frame F whose name is
3483 INHERITS, into the vector of face attributes TO; INHERITS may also be
3484 a list of face names, in which case they are applied in order.
3485 CYCLE_CHECK is used to detect loops in face inheritance.
3486 Returns true if any of the inherited attributes are `font-related'. */
3489 merge_face_inheritance (f
, inherit
, to
, cycle_check
)
3491 Lisp_Object inherit
;
3493 Lisp_Object cycle_check
;
3495 if (SYMBOLP (inherit
) && !EQ (inherit
, Qunspecified
))
3496 /* Inherit from the named face INHERIT. */
3500 /* Make sure we're not in an inheritance loop. */
3501 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3502 if (NILP (cycle_check
))
3503 /* Cycle detected, ignore any further inheritance. */
3506 lface
= lface_from_face_name (f
, inherit
, 0);
3508 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, cycle_check
);
3510 else if (CONSP (inherit
))
3511 /* Handle a list of inherited faces by calling ourselves recursively
3512 on each element. Note that we only do so for symbol elements, so
3513 it's not possible to infinitely recurse. */
3515 while (CONSP (inherit
))
3517 if (SYMBOLP (XCAR (inherit
)))
3518 merge_face_inheritance (f
, XCAR (inherit
), to
, cycle_check
);
3520 /* Check for a circular inheritance list. */
3521 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3522 if (NILP (cycle_check
))
3523 /* Cycle detected. */
3526 inherit
= XCDR (inherit
);
3532 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3533 is a face property, determine the resulting face attributes on
3534 frame F, and store them in TO. PROP may be a single face
3535 specification or a list of such specifications. Each face
3536 specification can be
3538 1. A symbol or string naming a Lisp face.
3540 2. A property list of the form (KEYWORD VALUE ...) where each
3541 KEYWORD is a face attribute name, and value is an appropriate value
3544 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3545 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3546 for compatibility with 20.2.
3548 Face specifications earlier in lists take precedence over later
3552 merge_face_vector_with_property (f
, to
, prop
)
3559 Lisp_Object first
= XCAR (prop
);
3561 if (EQ (first
, Qforeground_color
)
3562 || EQ (first
, Qbackground_color
))
3564 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3565 . COLOR). COLOR must be a string. */
3566 Lisp_Object color_name
= XCDR (prop
);
3567 Lisp_Object color
= first
;
3569 if (STRINGP (color_name
))
3571 if (EQ (color
, Qforeground_color
))
3572 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3574 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3577 add_to_log ("Invalid face color", color_name
, Qnil
);
3579 else if (SYMBOLP (first
)
3580 && *SDATA (SYMBOL_NAME (first
)) == ':')
3582 /* Assume this is the property list form. */
3583 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3585 Lisp_Object keyword
= XCAR (prop
);
3586 Lisp_Object value
= XCAR (XCDR (prop
));
3588 if (EQ (keyword
, QCfamily
))
3590 if (STRINGP (value
))
3591 to
[LFACE_FAMILY_INDEX
] = value
;
3593 add_to_log ("Invalid face font family", value
, Qnil
);
3595 else if (EQ (keyword
, QCheight
))
3597 Lisp_Object new_height
=
3598 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3601 if (NILP (new_height
))
3602 add_to_log ("Invalid face font height", value
, Qnil
);
3604 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3606 else if (EQ (keyword
, QCweight
))
3609 && face_numeric_weight (value
) >= 0)
3610 to
[LFACE_WEIGHT_INDEX
] = value
;
3612 add_to_log ("Invalid face weight", value
, Qnil
);
3614 else if (EQ (keyword
, QCslant
))
3617 && face_numeric_slant (value
) >= 0)
3618 to
[LFACE_SLANT_INDEX
] = value
;
3620 add_to_log ("Invalid face slant", value
, Qnil
);
3622 else if (EQ (keyword
, QCunderline
))
3627 to
[LFACE_UNDERLINE_INDEX
] = value
;
3629 add_to_log ("Invalid face underline", value
, Qnil
);
3631 else if (EQ (keyword
, QCoverline
))
3636 to
[LFACE_OVERLINE_INDEX
] = value
;
3638 add_to_log ("Invalid face overline", value
, Qnil
);
3640 else if (EQ (keyword
, QCstrike_through
))
3645 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3647 add_to_log ("Invalid face strike-through", value
, Qnil
);
3649 else if (EQ (keyword
, QCbox
))
3652 value
= make_number (1);
3653 if (INTEGERP (value
)
3657 to
[LFACE_BOX_INDEX
] = value
;
3659 add_to_log ("Invalid face box", value
, Qnil
);
3661 else if (EQ (keyword
, QCinverse_video
)
3662 || EQ (keyword
, QCreverse_video
))
3664 if (EQ (value
, Qt
) || NILP (value
))
3665 to
[LFACE_INVERSE_INDEX
] = value
;
3667 add_to_log ("Invalid face inverse-video", value
, Qnil
);
3669 else if (EQ (keyword
, QCforeground
))
3671 if (STRINGP (value
))
3672 to
[LFACE_FOREGROUND_INDEX
] = value
;
3674 add_to_log ("Invalid face foreground", value
, Qnil
);
3676 else if (EQ (keyword
, QCbackground
))
3678 if (STRINGP (value
))
3679 to
[LFACE_BACKGROUND_INDEX
] = value
;
3681 add_to_log ("Invalid face background", value
, Qnil
);
3683 else if (EQ (keyword
, QCstipple
))
3685 #ifdef HAVE_X_WINDOWS
3686 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3687 if (!NILP (pixmap_p
))
3688 to
[LFACE_STIPPLE_INDEX
] = value
;
3690 add_to_log ("Invalid face stipple", value
, Qnil
);
3693 else if (EQ (keyword
, QCwidth
))
3696 && face_numeric_swidth (value
) >= 0)
3697 to
[LFACE_SWIDTH_INDEX
] = value
;
3699 add_to_log ("Invalid face width", value
, Qnil
);
3701 else if (EQ (keyword
, QCinherit
))
3703 if (SYMBOLP (value
))
3704 to
[LFACE_INHERIT_INDEX
] = value
;
3708 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3709 if (!SYMBOLP (XCAR (tail
)))
3712 to
[LFACE_INHERIT_INDEX
] = value
;
3714 add_to_log ("Invalid face inherit", value
, Qnil
);
3718 add_to_log ("Invalid attribute %s in face property",
3721 prop
= XCDR (XCDR (prop
));
3726 /* This is a list of face specs. Specifications at the
3727 beginning of the list take precedence over later
3728 specifications, so we have to merge starting with the
3729 last specification. */
3730 Lisp_Object next
= XCDR (prop
);
3732 merge_face_vector_with_property (f
, to
, next
);
3733 merge_face_vector_with_property (f
, to
, first
);
3738 /* PROP ought to be a face name. */
3739 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3741 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3743 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, Qnil
);
3748 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3749 Sinternal_make_lisp_face
, 1, 2, 0,
3750 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3751 If FACE was not known as a face before, create a new one.
3752 If optional argument FRAME is specified, make a frame-local face
3753 for that frame. Otherwise operate on the global face definition.
3754 Value is a vector of face attributes. */)
3756 Lisp_Object face
, frame
;
3758 Lisp_Object global_lface
, lface
;
3762 CHECK_SYMBOL (face
);
3763 global_lface
= lface_from_face_name (NULL
, face
, 0);
3767 CHECK_LIVE_FRAME (frame
);
3769 lface
= lface_from_face_name (f
, face
, 0);
3772 f
= NULL
, lface
= Qnil
;
3774 /* Add a global definition if there is none. */
3775 if (NILP (global_lface
))
3777 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3779 AREF (global_lface
, 0) = Qface
;
3780 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3781 Vface_new_frame_defaults
);
3783 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3784 face id to Lisp face is given by the vector lface_id_to_name.
3785 The mapping from Lisp face to Lisp face id is given by the
3786 property `face' of the Lisp face name. */
3787 if (next_lface_id
== lface_id_to_name_size
)
3789 int new_size
= max (50, 2 * lface_id_to_name_size
);
3790 int sz
= new_size
* sizeof *lface_id_to_name
;
3791 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3792 lface_id_to_name_size
= new_size
;
3795 lface_id_to_name
[next_lface_id
] = face
;
3796 Fput (face
, Qface
, make_number (next_lface_id
));
3800 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3801 AREF (global_lface
, i
) = Qunspecified
;
3803 /* Add a frame-local definition. */
3808 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3810 AREF (lface
, 0) = Qface
;
3811 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3814 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3815 AREF (lface
, i
) = Qunspecified
;
3818 lface
= global_lface
;
3820 /* Changing a named face means that all realized faces depending on
3821 that face are invalid. Since we cannot tell which realized faces
3822 depend on the face, make sure they are all removed. This is done
3823 by incrementing face_change_count. The next call to
3824 init_iterator will then free realized faces. */
3825 ++face_change_count
;
3826 ++windows_or_buffers_changed
;
3828 xassert (LFACEP (lface
));
3829 check_lface (lface
);
3834 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3835 Sinternal_lisp_face_p
, 1, 2, 0,
3836 doc
: /* Return non-nil if FACE names a face.
3837 If optional second parameter FRAME is non-nil, check for the
3838 existence of a frame-local face with name FACE on that frame.
3839 Otherwise check for the existence of a global face. */)
3841 Lisp_Object face
, frame
;
3847 CHECK_LIVE_FRAME (frame
);
3848 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3851 lface
= lface_from_face_name (NULL
, face
, 0);
3857 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3858 Sinternal_copy_lisp_face
, 4, 4, 0,
3859 doc
: /* Copy face FROM to TO.
3860 If FRAME it t, copy the global face definition of FROM to the
3861 global face definition of TO. Otherwise, copy the frame-local
3862 definition of FROM on FRAME to the frame-local definition of TO
3863 on NEW-FRAME, or FRAME if NEW-FRAME is nil.
3866 (from
, to
, frame
, new_frame
)
3867 Lisp_Object from
, to
, frame
, new_frame
;
3869 Lisp_Object lface
, copy
;
3871 CHECK_SYMBOL (from
);
3873 if (NILP (new_frame
))
3878 /* Copy global definition of FROM. We don't make copies of
3879 strings etc. because 20.2 didn't do it either. */
3880 lface
= lface_from_face_name (NULL
, from
, 1);
3881 copy
= Finternal_make_lisp_face (to
, Qnil
);
3885 /* Copy frame-local definition of FROM. */
3886 CHECK_LIVE_FRAME (frame
);
3887 CHECK_LIVE_FRAME (new_frame
);
3888 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3889 copy
= Finternal_make_lisp_face (to
, new_frame
);
3892 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3893 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3895 /* Changing a named face means that all realized faces depending on
3896 that face are invalid. Since we cannot tell which realized faces
3897 depend on the face, make sure they are all removed. This is done
3898 by incrementing face_change_count. The next call to
3899 init_iterator will then free realized faces. */
3900 ++face_change_count
;
3901 ++windows_or_buffers_changed
;
3907 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3908 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3909 doc
: /* Set attribute ATTR of FACE to VALUE.
3910 FRAME being a frame means change the face on that frame.
3911 FRAME nil means change the face of the selected frame.
3912 FRAME t means change the default for new frames.
3913 FRAME 0 means change the face on all frames, and change the default
3915 (face
, attr
, value
, frame
)
3916 Lisp_Object face
, attr
, value
, frame
;
3919 Lisp_Object old_value
= Qnil
;
3920 /* Set 1 if ATTR is QCfont. */
3921 int font_attr_p
= 0;
3922 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3923 int font_related_attr_p
= 0;
3925 CHECK_SYMBOL (face
);
3926 CHECK_SYMBOL (attr
);
3928 face
= resolve_face_name (face
);
3930 /* If FRAME is 0, change face on all frames, and change the
3931 default for new frames. */
3932 if (INTEGERP (frame
) && XINT (frame
) == 0)
3935 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3936 FOR_EACH_FRAME (tail
, frame
)
3937 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3941 /* Set lface to the Lisp attribute vector of FACE. */
3943 lface
= lface_from_face_name (NULL
, face
, 1);
3947 frame
= selected_frame
;
3949 CHECK_LIVE_FRAME (frame
);
3950 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3952 /* If a frame-local face doesn't exist yet, create one. */
3954 lface
= Finternal_make_lisp_face (face
, frame
);
3957 if (EQ (attr
, QCfamily
))
3959 if (!UNSPECIFIEDP (value
))
3961 CHECK_STRING (value
);
3962 if (SCHARS (value
) == 0)
3963 signal_error ("Invalid face family", value
);
3965 old_value
= LFACE_FAMILY (lface
);
3966 LFACE_FAMILY (lface
) = value
;
3967 font_related_attr_p
= 1;
3969 else if (EQ (attr
, QCheight
))
3971 if (!UNSPECIFIEDP (value
))
3975 test
= (EQ (face
, Qdefault
)
3977 /* The default face must have an absolute size,
3978 otherwise, we do a test merge with a random
3979 height to see if VALUE's ok. */
3980 : merge_face_heights (value
, make_number (10), Qnil
, Qnil
));
3982 if (!INTEGERP (test
) || XINT (test
) <= 0)
3983 signal_error ("Invalid face height", value
);
3986 old_value
= LFACE_HEIGHT (lface
);
3987 LFACE_HEIGHT (lface
) = value
;
3988 font_related_attr_p
= 1;
3990 else if (EQ (attr
, QCweight
))
3992 if (!UNSPECIFIEDP (value
))
3994 CHECK_SYMBOL (value
);
3995 if (face_numeric_weight (value
) < 0)
3996 signal_error ("Invalid face weight", value
);
3998 old_value
= LFACE_WEIGHT (lface
);
3999 LFACE_WEIGHT (lface
) = value
;
4000 font_related_attr_p
= 1;
4002 else if (EQ (attr
, QCslant
))
4004 if (!UNSPECIFIEDP (value
))
4006 CHECK_SYMBOL (value
);
4007 if (face_numeric_slant (value
) < 0)
4008 signal_error ("Invalid face slant", value
);
4010 old_value
= LFACE_SLANT (lface
);
4011 LFACE_SLANT (lface
) = value
;
4012 font_related_attr_p
= 1;
4014 else if (EQ (attr
, QCunderline
))
4016 if (!UNSPECIFIEDP (value
))
4017 if ((SYMBOLP (value
)
4019 && !EQ (value
, Qnil
))
4020 /* Underline color. */
4022 && SCHARS (value
) == 0))
4023 signal_error ("Invalid face underline", value
);
4025 old_value
= LFACE_UNDERLINE (lface
);
4026 LFACE_UNDERLINE (lface
) = value
;
4028 else if (EQ (attr
, QCoverline
))
4030 if (!UNSPECIFIEDP (value
))
4031 if ((SYMBOLP (value
)
4033 && !EQ (value
, Qnil
))
4034 /* Overline color. */
4036 && SCHARS (value
) == 0))
4037 signal_error ("Invalid face overline", value
);
4039 old_value
= LFACE_OVERLINE (lface
);
4040 LFACE_OVERLINE (lface
) = value
;
4042 else if (EQ (attr
, QCstrike_through
))
4044 if (!UNSPECIFIEDP (value
))
4045 if ((SYMBOLP (value
)
4047 && !EQ (value
, Qnil
))
4048 /* Strike-through color. */
4050 && SCHARS (value
) == 0))
4051 signal_error ("Invalid face strike-through", value
);
4053 old_value
= LFACE_STRIKE_THROUGH (lface
);
4054 LFACE_STRIKE_THROUGH (lface
) = value
;
4056 else if (EQ (attr
, QCbox
))
4060 /* Allow t meaning a simple box of width 1 in foreground color
4063 value
= make_number (1);
4065 if (UNSPECIFIEDP (value
))
4067 else if (NILP (value
))
4069 else if (INTEGERP (value
))
4070 valid_p
= XINT (value
) != 0;
4071 else if (STRINGP (value
))
4072 valid_p
= SCHARS (value
) > 0;
4073 else if (CONSP (value
))
4089 if (EQ (k
, QCline_width
))
4091 if (!INTEGERP (v
) || XINT (v
) == 0)
4094 else if (EQ (k
, QCcolor
))
4096 if (!STRINGP (v
) || SCHARS (v
) == 0)
4099 else if (EQ (k
, QCstyle
))
4101 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4108 valid_p
= NILP (tem
);
4114 signal_error ("Invalid face box", value
);
4116 old_value
= LFACE_BOX (lface
);
4117 LFACE_BOX (lface
) = value
;
4119 else if (EQ (attr
, QCinverse_video
)
4120 || EQ (attr
, QCreverse_video
))
4122 if (!UNSPECIFIEDP (value
))
4124 CHECK_SYMBOL (value
);
4125 if (!EQ (value
, Qt
) && !NILP (value
))
4126 signal_error ("Invalid inverse-video face attribute value", value
);
4128 old_value
= LFACE_INVERSE (lface
);
4129 LFACE_INVERSE (lface
) = value
;
4131 else if (EQ (attr
, QCforeground
))
4133 if (!UNSPECIFIEDP (value
))
4135 /* Don't check for valid color names here because it depends
4136 on the frame (display) whether the color will be valid
4137 when the face is realized. */
4138 CHECK_STRING (value
);
4139 if (SCHARS (value
) == 0)
4140 signal_error ("Empty foreground color value", value
);
4142 old_value
= LFACE_FOREGROUND (lface
);
4143 LFACE_FOREGROUND (lface
) = value
;
4145 else if (EQ (attr
, QCbackground
))
4147 if (!UNSPECIFIEDP (value
))
4149 /* Don't check for valid color names here because it depends
4150 on the frame (display) whether the color will be valid
4151 when the face is realized. */
4152 CHECK_STRING (value
);
4153 if (SCHARS (value
) == 0)
4154 signal_error ("Empty background color value", value
);
4156 old_value
= LFACE_BACKGROUND (lface
);
4157 LFACE_BACKGROUND (lface
) = value
;
4159 else if (EQ (attr
, QCstipple
))
4161 #ifdef HAVE_X_WINDOWS
4162 if (!UNSPECIFIEDP (value
)
4164 && NILP (Fbitmap_spec_p (value
)))
4165 signal_error ("Invalid stipple attribute", value
);
4166 old_value
= LFACE_STIPPLE (lface
);
4167 LFACE_STIPPLE (lface
) = value
;
4168 #endif /* HAVE_X_WINDOWS */
4170 else if (EQ (attr
, QCwidth
))
4172 if (!UNSPECIFIEDP (value
))
4174 CHECK_SYMBOL (value
);
4175 if (face_numeric_swidth (value
) < 0)
4176 signal_error ("Invalid face width", value
);
4178 old_value
= LFACE_SWIDTH (lface
);
4179 LFACE_SWIDTH (lface
) = value
;
4180 font_related_attr_p
= 1;
4182 else if (EQ (attr
, QCfont
))
4184 #ifdef HAVE_WINDOW_SYSTEM
4185 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4187 /* Set font-related attributes of the Lisp face from an XLFD
4193 f
= SELECTED_FRAME ();
4195 f
= check_x_frame (frame
);
4197 if (!UNSPECIFIEDP (value
))
4199 CHECK_STRING (value
);
4201 /* VALUE may be a fontset name or an alias of fontset. In
4202 such a case, use the base fontset name. */
4203 tmp
= Fquery_fontset (value
, Qnil
);
4207 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4208 signal_error ("Invalid font or fontset name", value
);
4213 #endif /* HAVE_WINDOW_SYSTEM */
4215 else if (EQ (attr
, QCinherit
))
4218 if (SYMBOLP (value
))
4221 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4222 if (!SYMBOLP (XCAR (tail
)))
4225 LFACE_INHERIT (lface
) = value
;
4227 signal_error ("Invalid face inheritance", value
);
4229 else if (EQ (attr
, QCbold
))
4231 old_value
= LFACE_WEIGHT (lface
);
4232 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4233 font_related_attr_p
= 1;
4235 else if (EQ (attr
, QCitalic
))
4237 old_value
= LFACE_SLANT (lface
);
4238 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4239 font_related_attr_p
= 1;
4242 signal_error ("Invalid face attribute name", attr
);
4244 if (font_related_attr_p
4245 && !UNSPECIFIEDP (value
))
4246 /* If a font-related attribute other than QCfont is specified, the
4247 original `font' attribute nor that of default face is useless
4248 to determine a new font. Thus, we set it to nil so that font
4249 selection mechanism doesn't use it. */
4250 LFACE_FONT (lface
) = Qnil
;
4252 /* Changing a named face means that all realized faces depending on
4253 that face are invalid. Since we cannot tell which realized faces
4254 depend on the face, make sure they are all removed. This is done
4255 by incrementing face_change_count. The next call to
4256 init_iterator will then free realized faces. */
4258 && (EQ (attr
, QCfont
)
4259 || NILP (Fequal (old_value
, value
))))
4261 ++face_change_count
;
4262 ++windows_or_buffers_changed
;
4265 if (!UNSPECIFIEDP (value
)
4266 && NILP (Fequal (old_value
, value
)))
4272 if (EQ (face
, Qdefault
))
4274 #ifdef HAVE_WINDOW_SYSTEM
4275 /* Changed font-related attributes of the `default' face are
4276 reflected in changed `font' frame parameters. */
4278 && (font_related_attr_p
|| font_attr_p
)
4279 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4280 set_font_frame_param (frame
, lface
);
4282 #endif /* HAVE_WINDOW_SYSTEM */
4284 if (EQ (attr
, QCforeground
))
4285 param
= Qforeground_color
;
4286 else if (EQ (attr
, QCbackground
))
4287 param
= Qbackground_color
;
4289 #ifdef HAVE_WINDOW_SYSTEM
4291 else if (EQ (face
, Qscroll_bar
))
4293 /* Changing the colors of `scroll-bar' sets frame parameters
4294 `scroll-bar-foreground' and `scroll-bar-background'. */
4295 if (EQ (attr
, QCforeground
))
4296 param
= Qscroll_bar_foreground
;
4297 else if (EQ (attr
, QCbackground
))
4298 param
= Qscroll_bar_background
;
4300 #endif /* not WINDOWSNT */
4301 else if (EQ (face
, Qborder
))
4303 /* Changing background color of `border' sets frame parameter
4305 if (EQ (attr
, QCbackground
))
4306 param
= Qborder_color
;
4308 else if (EQ (face
, Qcursor
))
4310 /* Changing background color of `cursor' sets frame parameter
4312 if (EQ (attr
, QCbackground
))
4313 param
= Qcursor_color
;
4315 else if (EQ (face
, Qmouse
))
4317 /* Changing background color of `mouse' sets frame parameter
4319 if (EQ (attr
, QCbackground
))
4320 param
= Qmouse_color
;
4322 #endif /* HAVE_WINDOW_SYSTEM */
4323 else if (EQ (face
, Qmenu
))
4325 /* Indicate that we have to update the menu bar when
4326 realizing faces on FRAME. FRAME t change the
4327 default for new frames. We do this by setting
4328 setting the flag in new face caches */
4331 struct frame
*f
= XFRAME (frame
);
4332 if (FRAME_FACE_CACHE (f
) == NULL
)
4333 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4334 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4337 menu_face_changed_default
= 1;
4343 /* Update `default-frame-alist', which is used for new frames. */
4345 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4348 /* Update the current frame's parameters. */
4351 cons
= XCAR (Vparam_value_alist
);
4352 XSETCAR (cons
, param
);
4353 XSETCDR (cons
, value
);
4354 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4363 #ifdef HAVE_WINDOW_SYSTEM
4365 /* Set the `font' frame parameter of FRAME determined from `default'
4366 face attributes LFACE. If a face or fontset name is explicitely
4367 specfied in LFACE, use it as is. Otherwise, determine a font name
4368 from the other font-related atrributes of LFACE. In that case, if
4369 there's no matching font, signals an error. */
4372 set_font_frame_param (frame
, lface
)
4373 Lisp_Object frame
, lface
;
4375 struct frame
*f
= XFRAME (frame
);
4377 if (FRAME_WINDOW_P (f
))
4379 Lisp_Object font_name
;
4382 if (STRINGP (LFACE_FONT (lface
)))
4383 font_name
= LFACE_FONT (lface
);
4386 /* Choose a font name that reflects LFACE's attributes and has
4387 the registry and encoding pattern specified in the default
4388 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4389 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4391 error ("No font matches the specified attribute");
4392 font_name
= build_string (font
);
4396 f
->default_face_done_p
= 0;
4397 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4402 /* Update the corresponding face when frame parameter PARAM on frame F
4403 has been assigned the value NEW_VALUE. */
4406 update_face_from_frame_parameter (f
, param
, new_value
)
4408 Lisp_Object param
, new_value
;
4412 /* If there are no faces yet, give up. This is the case when called
4413 from Fx_create_frame, and we do the necessary things later in
4414 face-set-after-frame-defaults. */
4415 if (NILP (f
->face_alist
))
4418 /* Changing a named face means that all realized faces depending on
4419 that face are invalid. Since we cannot tell which realized faces
4420 depend on the face, make sure they are all removed. This is done
4421 by incrementing face_change_count. The next call to
4422 init_iterator will then free realized faces. */
4423 ++face_change_count
;
4424 ++windows_or_buffers_changed
;
4426 if (EQ (param
, Qforeground_color
))
4428 lface
= lface_from_face_name (f
, Qdefault
, 1);
4429 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4430 ? new_value
: Qunspecified
);
4431 realize_basic_faces (f
);
4433 else if (EQ (param
, Qbackground_color
))
4437 /* Changing the background color might change the background
4438 mode, so that we have to load new defface specs. Call
4439 frame-update-face-colors to do that. */
4440 XSETFRAME (frame
, f
);
4441 call1 (Qframe_update_face_colors
, frame
);
4443 lface
= lface_from_face_name (f
, Qdefault
, 1);
4444 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4445 ? new_value
: Qunspecified
);
4446 realize_basic_faces (f
);
4448 if (EQ (param
, Qborder_color
))
4450 lface
= lface_from_face_name (f
, Qborder
, 1);
4451 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4452 ? new_value
: Qunspecified
);
4454 else if (EQ (param
, Qcursor_color
))
4456 lface
= lface_from_face_name (f
, Qcursor
, 1);
4457 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4458 ? new_value
: Qunspecified
);
4460 else if (EQ (param
, Qmouse_color
))
4462 lface
= lface_from_face_name (f
, Qmouse
, 1);
4463 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4464 ? new_value
: Qunspecified
);
4469 /* Get the value of X resource RESOURCE, class CLASS for the display
4470 of frame FRAME. This is here because ordinary `x-get-resource'
4471 doesn't take a frame argument. */
4473 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4474 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4475 (resource
, class, frame
)
4476 Lisp_Object resource
, class, frame
;
4478 Lisp_Object value
= Qnil
;
4479 CHECK_STRING (resource
);
4480 CHECK_STRING (class);
4481 CHECK_LIVE_FRAME (frame
);
4483 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4484 resource
, class, Qnil
, Qnil
);
4490 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4491 If VALUE is "on" or "true", return t. If VALUE is "off" or
4492 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4493 error; if SIGNAL_P is zero, return 0. */
4496 face_boolean_x_resource_value (value
, signal_p
)
4500 Lisp_Object result
= make_number (0);
4502 xassert (STRINGP (value
));
4504 if (xstricmp (SDATA (value
), "on") == 0
4505 || xstricmp (SDATA (value
), "true") == 0)
4507 else if (xstricmp (SDATA (value
), "off") == 0
4508 || xstricmp (SDATA (value
), "false") == 0)
4510 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4511 result
= Qunspecified
;
4513 signal_error ("Invalid face attribute value from X resource", value
);
4519 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4520 Finternal_set_lisp_face_attribute_from_resource
,
4521 Sinternal_set_lisp_face_attribute_from_resource
,
4522 3, 4, 0, doc
: /* */)
4523 (face
, attr
, value
, frame
)
4524 Lisp_Object face
, attr
, value
, frame
;
4526 CHECK_SYMBOL (face
);
4527 CHECK_SYMBOL (attr
);
4528 CHECK_STRING (value
);
4530 if (xstricmp (SDATA (value
), "unspecified") == 0)
4531 value
= Qunspecified
;
4532 else if (EQ (attr
, QCheight
))
4534 value
= Fstring_to_number (value
, make_number (10));
4535 if (XINT (value
) <= 0)
4536 signal_error ("Invalid face height from X resource", value
);
4538 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4539 value
= face_boolean_x_resource_value (value
, 1);
4540 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4541 value
= intern (SDATA (value
));
4542 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4543 value
= face_boolean_x_resource_value (value
, 1);
4544 else if (EQ (attr
, QCunderline
)
4545 || EQ (attr
, QCoverline
)
4546 || EQ (attr
, QCstrike_through
))
4548 Lisp_Object boolean_value
;
4550 /* If the result of face_boolean_x_resource_value is t or nil,
4551 VALUE does NOT specify a color. */
4552 boolean_value
= face_boolean_x_resource_value (value
, 0);
4553 if (SYMBOLP (boolean_value
))
4554 value
= boolean_value
;
4556 else if (EQ (attr
, QCbox
))
4557 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4559 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4562 #endif /* HAVE_WINDOW_SYSTEM */
4565 /***********************************************************************
4567 ***********************************************************************/
4569 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4571 /* Make menus on frame F appear as specified by the `menu' face. */
4574 x_update_menu_appearance (f
)
4577 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4581 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4585 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4586 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4587 const char *myname
= SDATA (Vx_resource_name
);
4590 const char *popup_path
= "popup_menu";
4592 const char *popup_path
= "menu.popup";
4595 if (STRINGP (LFACE_FOREGROUND (lface
)))
4597 sprintf (line
, "%s.%s*foreground: %s",
4599 SDATA (LFACE_FOREGROUND (lface
)));
4600 XrmPutLineResource (&rdb
, line
);
4601 sprintf (line
, "%s.pane.menubar*foreground: %s",
4602 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4603 XrmPutLineResource (&rdb
, line
);
4607 if (STRINGP (LFACE_BACKGROUND (lface
)))
4609 sprintf (line
, "%s.%s*background: %s",
4611 SDATA (LFACE_BACKGROUND (lface
)));
4612 XrmPutLineResource (&rdb
, line
);
4613 sprintf (line
, "%s.pane.menubar*background: %s",
4614 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4615 XrmPutLineResource (&rdb
, line
);
4620 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4621 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4622 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4623 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4624 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4625 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4628 const char *suffix
= "List";
4630 const char *suffix
= "";
4632 sprintf (line
, "%s.pane.menubar*font%s: %s",
4633 myname
, suffix
, face
->font_name
);
4634 XrmPutLineResource (&rdb
, line
);
4635 sprintf (line
, "%s.%s*font%s: %s",
4636 myname
, popup_path
, suffix
, face
->font_name
);
4637 XrmPutLineResource (&rdb
, line
);
4641 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4642 free_frame_menubar (f
);
4646 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4649 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4650 Sface_attribute_relative_p
,
4652 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4654 Lisp_Object attribute
, value
;
4656 if (EQ (value
, Qunspecified
))
4658 else if (EQ (attribute
, QCheight
))
4659 return INTEGERP (value
) ? Qnil
: Qt
;
4664 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4666 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4667 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4668 the result will be absolute, otherwise it will be relative. */)
4669 (attribute
, value1
, value2
)
4670 Lisp_Object attribute
, value1
, value2
;
4672 if (EQ (value1
, Qunspecified
))
4674 else if (EQ (attribute
, QCheight
))
4675 return merge_face_heights (value1
, value2
, value1
, Qnil
);
4681 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4682 Sinternal_get_lisp_face_attribute
,
4684 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4685 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4686 face attribute name, signal an error.
4687 If the optional argument FRAME is given, report on face FACE in that
4688 frame. If FRAME is t, report on the defaults for face FACE (for new
4689 frames). If FRAME is omitted or nil, use the selected frame. */)
4690 (symbol
, keyword
, frame
)
4691 Lisp_Object symbol
, keyword
, frame
;
4693 Lisp_Object lface
, value
= Qnil
;
4695 CHECK_SYMBOL (symbol
);
4696 CHECK_SYMBOL (keyword
);
4699 lface
= lface_from_face_name (NULL
, symbol
, 1);
4703 frame
= selected_frame
;
4704 CHECK_LIVE_FRAME (frame
);
4705 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4708 if (EQ (keyword
, QCfamily
))
4709 value
= LFACE_FAMILY (lface
);
4710 else if (EQ (keyword
, QCheight
))
4711 value
= LFACE_HEIGHT (lface
);
4712 else if (EQ (keyword
, QCweight
))
4713 value
= LFACE_WEIGHT (lface
);
4714 else if (EQ (keyword
, QCslant
))
4715 value
= LFACE_SLANT (lface
);
4716 else if (EQ (keyword
, QCunderline
))
4717 value
= LFACE_UNDERLINE (lface
);
4718 else if (EQ (keyword
, QCoverline
))
4719 value
= LFACE_OVERLINE (lface
);
4720 else if (EQ (keyword
, QCstrike_through
))
4721 value
= LFACE_STRIKE_THROUGH (lface
);
4722 else if (EQ (keyword
, QCbox
))
4723 value
= LFACE_BOX (lface
);
4724 else if (EQ (keyword
, QCinverse_video
)
4725 || EQ (keyword
, QCreverse_video
))
4726 value
= LFACE_INVERSE (lface
);
4727 else if (EQ (keyword
, QCforeground
))
4728 value
= LFACE_FOREGROUND (lface
);
4729 else if (EQ (keyword
, QCbackground
))
4730 value
= LFACE_BACKGROUND (lface
);
4731 else if (EQ (keyword
, QCstipple
))
4732 value
= LFACE_STIPPLE (lface
);
4733 else if (EQ (keyword
, QCwidth
))
4734 value
= LFACE_SWIDTH (lface
);
4735 else if (EQ (keyword
, QCinherit
))
4736 value
= LFACE_INHERIT (lface
);
4737 else if (EQ (keyword
, QCfont
))
4738 value
= LFACE_FONT (lface
);
4740 signal_error ("Invalid face attribute name", keyword
);
4746 DEFUN ("internal-lisp-face-attribute-values",
4747 Finternal_lisp_face_attribute_values
,
4748 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4749 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4750 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4754 Lisp_Object result
= Qnil
;
4756 CHECK_SYMBOL (attr
);
4758 if (EQ (attr
, QCweight
)
4759 || EQ (attr
, QCslant
)
4760 || EQ (attr
, QCwidth
))
4762 /* Extract permissible symbols from tables. */
4763 struct table_entry
*table
;
4766 if (EQ (attr
, QCweight
))
4767 table
= weight_table
, dim
= DIM (weight_table
);
4768 else if (EQ (attr
, QCslant
))
4769 table
= slant_table
, dim
= DIM (slant_table
);
4771 table
= swidth_table
, dim
= DIM (swidth_table
);
4773 for (i
= 0; i
< dim
; ++i
)
4775 Lisp_Object symbol
= *table
[i
].symbol
;
4776 Lisp_Object tail
= result
;
4779 && !EQ (XCAR (tail
), symbol
))
4783 result
= Fcons (symbol
, result
);
4786 else if (EQ (attr
, QCunderline
))
4787 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4788 else if (EQ (attr
, QCoverline
))
4789 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4790 else if (EQ (attr
, QCstrike_through
))
4791 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4792 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4793 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4799 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4800 Sinternal_merge_in_global_face
, 2, 2, 0,
4801 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4802 Default face attributes override any local face attributes. */)
4804 Lisp_Object face
, frame
;
4807 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4809 CHECK_LIVE_FRAME (frame
);
4810 global_lface
= lface_from_face_name (NULL
, face
, 1);
4811 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4812 if (NILP (local_lface
))
4813 local_lface
= Finternal_make_lisp_face (face
, frame
);
4815 /* Make every specified global attribute override the local one.
4816 BEWARE!! This is only used from `face-set-after-frame-default' where
4817 the local frame is defined from default specs in `face-defface-spec'
4818 and those should be overridden by global settings. Hence the strange
4819 "global before local" priority. */
4820 lvec
= XVECTOR (local_lface
)->contents
;
4821 gvec
= XVECTOR (global_lface
)->contents
;
4822 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4823 if (! UNSPECIFIEDP (gvec
[i
]))
4830 /* The following function is implemented for compatibility with 20.2.
4831 The function is used in x-resolve-fonts when it is asked to
4832 return fonts with the same size as the font of a face. This is
4833 done in fontset.el. */
4835 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4836 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4837 If the optional argument FRAME is given, report on face FACE in that frame.
4838 If FRAME is t, report on the defaults for face FACE (for new frames).
4839 The font default for a face is either nil, or a list
4840 of the form (bold), (italic) or (bold italic).
4841 If FRAME is omitted or nil, use the selected frame. */)
4843 Lisp_Object face
, frame
;
4847 Lisp_Object result
= Qnil
;
4848 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4850 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4851 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4852 result
= Fcons (Qbold
, result
);
4854 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4855 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4856 result
= Fcons (Qitalic
, result
);
4862 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4863 int face_id
= lookup_named_face (f
, face
, 0);
4864 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4865 return face
? build_string (face
->font_name
) : Qnil
;
4870 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4871 all attributes are `equal'. Tries to be fast because this function
4872 is called quite often. */
4875 lface_equal_p (v1
, v2
)
4876 Lisp_Object
*v1
, *v2
;
4880 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4882 Lisp_Object a
= v1
[i
];
4883 Lisp_Object b
= v2
[i
];
4885 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4886 and the other is specified. */
4887 equal_p
= XTYPE (a
) == XTYPE (b
);
4896 equal_p
= ((SBYTES (a
)
4898 && bcmp (SDATA (a
), SDATA (b
),
4908 equal_p
= !NILP (Fequal (a
, b
));
4918 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4919 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4920 doc
: /* True if FACE1 and FACE2 are equal.
4921 If the optional argument FRAME is given, report on face FACE in that frame.
4922 If FRAME is t, report on the defaults for face FACE (for new frames).
4923 If FRAME is omitted or nil, use the selected frame. */)
4924 (face1
, face2
, frame
)
4925 Lisp_Object face1
, face2
, frame
;
4929 Lisp_Object lface1
, lface2
;
4934 /* Don't use check_x_frame here because this function is called
4935 before X frames exist. At that time, if FRAME is nil,
4936 selected_frame will be used which is the frame dumped with
4937 Emacs. That frame is not an X frame. */
4938 f
= frame_or_selected_frame (frame
, 2);
4940 lface1
= lface_from_face_name (NULL
, face1
, 1);
4941 lface2
= lface_from_face_name (NULL
, face2
, 1);
4942 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4943 XVECTOR (lface2
)->contents
);
4944 return equal_p
? Qt
: Qnil
;
4948 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4949 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4950 doc
: /* True if FACE has no attribute specified.
4951 If the optional argument FRAME is given, report on face FACE in that frame.
4952 If FRAME is t, report on the defaults for face FACE (for new frames).
4953 If FRAME is omitted or nil, use the selected frame. */)
4955 Lisp_Object face
, frame
;
4962 frame
= selected_frame
;
4963 CHECK_LIVE_FRAME (frame
);
4967 lface
= lface_from_face_name (NULL
, face
, 1);
4969 lface
= lface_from_face_name (f
, face
, 1);
4971 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4972 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4975 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4979 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4981 doc
: /* Return an alist of frame-local faces defined on FRAME.
4982 For internal use only. */)
4986 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4987 return f
->face_alist
;
4991 /* Return a hash code for Lisp string STRING with case ignored. Used
4992 below in computing a hash value for a Lisp face. */
4994 static INLINE
unsigned
4995 hash_string_case_insensitive (string
)
4998 const unsigned char *s
;
5000 xassert (STRINGP (string
));
5001 for (s
= SDATA (string
); *s
; ++s
)
5002 hash
= (hash
<< 1) ^ tolower (*s
);
5007 /* Return a hash code for face attribute vector V. */
5009 static INLINE
unsigned
5013 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5014 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5015 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5016 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5017 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5018 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5019 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5023 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5024 considering charsets/registries). They do if they specify the same
5025 family, point size, weight, width, slant, and fontset. Both LFACE1
5026 and LFACE2 must be fully-specified. */
5029 lface_same_font_attributes_p (lface1
, lface2
)
5030 Lisp_Object
*lface1
, *lface2
;
5032 xassert (lface_fully_specified_p (lface1
)
5033 && lface_fully_specified_p (lface2
));
5034 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5035 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5036 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5037 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5038 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5039 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5040 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5041 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5042 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5043 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5044 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5045 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5050 /***********************************************************************
5052 ***********************************************************************/
5054 /* Allocate and return a new realized face for Lisp face attribute
5057 static struct face
*
5058 make_realized_face (attr
)
5061 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5062 bzero (face
, sizeof *face
);
5063 face
->ascii_face
= face
;
5064 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5069 /* Free realized face FACE, including its X resources. FACE may
5073 free_realized_face (f
, face
)
5079 #ifdef HAVE_WINDOW_SYSTEM
5080 if (FRAME_WINDOW_P (f
))
5082 /* Free fontset of FACE if it is ASCII face. */
5083 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5084 free_face_fontset (f
, face
);
5087 x_free_gc (f
, face
->gc
);
5091 free_face_colors (f
, face
);
5092 x_destroy_bitmap (f
, face
->stipple
);
5094 #endif /* HAVE_WINDOW_SYSTEM */
5101 /* Prepare face FACE for subsequent display on frame F. This
5102 allocated GCs if they haven't been allocated yet or have been freed
5103 by clearing the face cache. */
5106 prepare_face_for_display (f
, face
)
5110 #ifdef HAVE_WINDOW_SYSTEM
5111 xassert (FRAME_WINDOW_P (f
));
5116 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5118 xgcv
.foreground
= face
->foreground
;
5119 xgcv
.background
= face
->background
;
5120 #ifdef HAVE_X_WINDOWS
5121 xgcv
.graphics_exposures
= False
;
5123 /* The font of FACE may be null if we couldn't load it. */
5126 #ifdef HAVE_X_WINDOWS
5127 xgcv
.font
= face
->font
->fid
;
5130 xgcv
.font
= face
->font
;
5133 xgcv
.font
= face
->font
;
5139 #ifdef HAVE_X_WINDOWS
5142 xgcv
.fill_style
= FillOpaqueStippled
;
5143 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5144 mask
|= GCFillStyle
| GCStipple
;
5147 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5150 #endif /* HAVE_WINDOW_SYSTEM */
5154 /* Returns the `distance' between the colors X and Y. */
5157 color_distance (x
, y
)
5160 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5161 Quoting from that paper:
5163 This formula has results that are very close to L*u*v* (with the
5164 modified lightness curve) and, more importantly, it is a more even
5165 algorithm: it does not have a range of colours where it suddenly
5166 gives far from optimal results.
5168 See <http://www.compuphase.com/cmetric.htm> for more info. */
5170 long r
= (x
->red
- y
->red
) >> 8;
5171 long g
= (x
->green
- y
->green
) >> 8;
5172 long b
= (x
->blue
- y
->blue
) >> 8;
5173 long r_mean
= (x
->red
+ y
->red
) >> 9;
5176 (((512 + r_mean
) * r
* r
) >> 8)
5178 + (((767 - r_mean
) * b
* b
) >> 8);
5182 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5183 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5184 COLOR1 and COLOR2 may be either strings containing the color name,
5185 or lists of the form (RED GREEN BLUE).
5186 If FRAME is unspecified or nil, the current frame is used. */)
5187 (color1
, color2
, frame
)
5188 Lisp_Object color1
, color2
, frame
;
5191 XColor cdef1
, cdef2
;
5194 frame
= selected_frame
;
5195 CHECK_LIVE_FRAME (frame
);
5198 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5199 || !STRINGP (color1
)
5200 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5201 signal_error ("Invalid color", color1
);
5202 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5203 || !STRINGP (color2
)
5204 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5205 signal_error ("Invalid color", color2
);
5207 return make_number (color_distance (&cdef1
, &cdef2
));
5211 /***********************************************************************
5212 Face capability testing for ttys
5213 ***********************************************************************/
5216 /* If the distance (as returned by color_distance) between two colors is
5217 less than this, then they are considered the same, for determining
5218 whether a color is supported or not. The range of values is 0-65535. */
5220 #define TTY_SAME_COLOR_THRESHOLD 10000
5223 DEFUN ("tty-supports-face-attributes-p",
5224 Ftty_supports_face_attributes_p
, Stty_supports_face_attributes_p
,
5226 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
5227 The optional argument FRAME is the frame on which to test; if it is nil
5228 or unspecified, then the current frame is used. If FRAME is not a tty
5229 frame, then nil is returned.
5231 The definition of `supported' is somewhat heuristic, but basically means
5232 that a face containing all the attributes in ATTRIBUTES, when merged
5233 with the default face for display, can be represented in a way that's
5235 \(1) different in appearance than the default face, and
5236 \(2) `close in spirit' to what the attributes specify, if not exact.
5238 Point (2) implies that a `:weight black' attribute will be satisified
5239 by any terminal that can display bold, and a `:foreground "yellow"' as
5240 long as the terminal can display a yellowish color, but `:slant italic'
5241 will _not_ be satisified by the tty display code's automatic
5242 substitution of a `dim' face for italic. */)
5244 Lisp_Object attributes
, frame
;
5248 Lisp_Object val
, fg
, bg
;
5249 XColor fg_tty_color
, fg_std_color
;
5250 XColor bg_tty_color
, bg_std_color
;
5251 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5252 unsigned test_caps
= 0;
5255 frame
= selected_frame
;
5256 CHECK_LIVE_FRAME (frame
);
5259 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
5260 attrs
[i
] = Qunspecified
;
5261 merge_face_vector_with_property (f
, attrs
, attributes
);
5263 /* This function only works on ttys. */
5264 if (!FRAME_TERMCAP_P (f
) && !FRAME_MSDOS_P (f
))
5267 /* First check some easy-to-check stuff; ttys support none of the
5268 following attributes, so we can just return nil if any are requested. */
5271 val
= attrs
[LFACE_STIPPLE_INDEX
];
5272 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5276 val
= attrs
[LFACE_HEIGHT_INDEX
];
5277 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5281 val
= attrs
[LFACE_SWIDTH_INDEX
];
5282 if (!UNSPECIFIEDP (val
) && !NILP (val
)
5283 && face_numeric_swidth (val
) != XLFD_SWIDTH_MEDIUM
)
5287 val
= attrs
[LFACE_OVERLINE_INDEX
];
5288 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5291 /* strike-through */
5292 val
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
5293 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5297 val
= attrs
[LFACE_BOX_INDEX
];
5298 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5301 /* slant (italics/oblique); We consider any non-default value
5302 unsupportable on ttys, even though the face code actually `fakes'
5303 them using a dim attribute if possible. This is because the faked
5304 result is too different from what the face specifies. */
5305 val
= attrs
[LFACE_SLANT_INDEX
];
5306 if (!UNSPECIFIEDP (val
) && !NILP (val
)
5307 && face_numeric_slant (val
) != XLFD_SLANT_ROMAN
)
5311 /* Test for terminal `capabilities' (non-color character attributes). */
5313 /* font weight (bold/dim) */
5314 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5317 if (weight
> XLFD_WEIGHT_MEDIUM
)
5318 test_caps
= TTY_CAP_BOLD
;
5319 else if (weight
< XLFD_WEIGHT_MEDIUM
)
5320 test_caps
= TTY_CAP_DIM
;
5324 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5325 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5328 return Qnil
; /* ttys don't support colored underlines */
5330 test_caps
|= TTY_CAP_UNDERLINE
;
5334 val
= attrs
[LFACE_INVERSE_INDEX
];
5335 if (!UNSPECIFIEDP (val
) && !NILP (val
))
5336 test_caps
|= TTY_CAP_INVERSE
;
5339 /* Color testing. */
5341 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5342 we use them when calling `tty_capable_p' below, even if the face
5343 specifies no colors. */
5344 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5345 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5347 /* Check if foreground color is close enough. */
5348 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5351 if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5353 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5354 > TTY_SAME_COLOR_THRESHOLD
)
5358 /* Check if background color is close enough. */
5359 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5362 if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
5364 else if (color_distance (&bg_tty_color
, &bg_std_color
)
5365 > TTY_SAME_COLOR_THRESHOLD
)
5369 /* If both foreground and background are requested, see if the
5370 distance between them is OK. We just check to see if the distance
5371 between the tty's foreground and background is close enough to the
5372 distance between the standard foreground and background. */
5373 if (STRINGP (fg
) && STRINGP (bg
))
5376 = (color_distance (&fg_std_color
, &bg_std_color
)
5377 - color_distance (&fg_tty_color
, &bg_tty_color
));
5378 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
5379 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
5384 /* See if the capabilities we selected above are supported, with the
5386 if (test_caps
!= 0 &&
5387 ! tty_capable_p (f
, test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
5391 /* Hmmm, everything checks out, this terminal must support this face. */
5397 /***********************************************************************
5399 ***********************************************************************/
5401 /* Return a new face cache for frame F. */
5403 static struct face_cache
*
5407 struct face_cache
*c
;
5410 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5411 bzero (c
, sizeof *c
);
5412 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5413 c
->buckets
= (struct face
**) xmalloc (size
);
5414 bzero (c
->buckets
, size
);
5416 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5418 c
->menu_face_changed_p
= menu_face_changed_default
;
5423 /* Clear out all graphics contexts for all realized faces, except for
5424 the basic faces. This should be done from time to time just to avoid
5425 keeping too many graphics contexts that are no longer needed. */
5429 struct face_cache
*c
;
5431 if (c
&& FRAME_WINDOW_P (c
->f
))
5433 #ifdef HAVE_WINDOW_SYSTEM
5435 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5437 struct face
*face
= c
->faces_by_id
[i
];
5438 if (face
&& face
->gc
)
5440 x_free_gc (c
->f
, face
->gc
);
5444 #endif /* HAVE_WINDOW_SYSTEM */
5449 /* Free all realized faces in face cache C, including basic faces. C
5450 may be null. If faces are freed, make sure the frame's current
5451 matrix is marked invalid, so that a display caused by an expose
5452 event doesn't try to use faces we destroyed. */
5455 free_realized_faces (c
)
5456 struct face_cache
*c
;
5461 struct frame
*f
= c
->f
;
5463 /* We must block input here because we can't process X events
5464 safely while only some faces are freed, or when the frame's
5465 current matrix still references freed faces. */
5468 for (i
= 0; i
< c
->used
; ++i
)
5470 free_realized_face (f
, c
->faces_by_id
[i
]);
5471 c
->faces_by_id
[i
] = NULL
;
5475 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5476 bzero (c
->buckets
, size
);
5478 /* Must do a thorough redisplay the next time. Mark current
5479 matrices as invalid because they will reference faces freed
5480 above. This function is also called when a frame is
5481 destroyed. In this case, the root window of F is nil. */
5482 if (WINDOWP (f
->root_window
))
5484 clear_current_matrices (f
);
5485 ++windows_or_buffers_changed
;
5493 /* Free all faces realized for multibyte characters on frame F that
5497 free_realized_multibyte_face (f
, fontset
)
5501 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5505 /* We must block input here because we can't process X events safely
5506 while only some faces are freed, or when the frame's current
5507 matrix still references freed faces. */
5510 for (i
= 0; i
< cache
->used
; i
++)
5512 face
= cache
->faces_by_id
[i
];
5514 && face
!= face
->ascii_face
5515 && face
->fontset
== fontset
)
5517 uncache_face (cache
, face
);
5518 free_realized_face (f
, face
);
5522 /* Must do a thorough redisplay the next time. Mark current
5523 matrices as invalid because they will reference faces freed
5524 above. This function is also called when a frame is destroyed.
5525 In this case, the root window of F is nil. */
5526 if (WINDOWP (f
->root_window
))
5528 clear_current_matrices (f
);
5529 ++windows_or_buffers_changed
;
5536 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5537 This is done after attributes of a named face have been changed,
5538 because we can't tell which realized faces depend on that face. */
5541 free_all_realized_faces (frame
)
5547 FOR_EACH_FRAME (rest
, frame
)
5548 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5551 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5555 /* Free face cache C and faces in it, including their X resources. */
5559 struct face_cache
*c
;
5563 free_realized_faces (c
);
5565 xfree (c
->faces_by_id
);
5571 /* Cache realized face FACE in face cache C. HASH is the hash value
5572 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5573 collision list of the face hash table of C. This is done because
5574 otherwise lookup_face would find FACE for every character, even if
5575 faces with the same attributes but for specific characters exist. */
5578 cache_face (c
, face
, hash
)
5579 struct face_cache
*c
;
5583 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5587 if (face
->fontset
>= 0)
5589 struct face
*last
= c
->buckets
[i
];
5600 c
->buckets
[i
] = face
;
5601 face
->prev
= face
->next
= NULL
;
5607 face
->next
= c
->buckets
[i
];
5609 face
->next
->prev
= face
;
5610 c
->buckets
[i
] = face
;
5613 /* Find a free slot in C->faces_by_id and use the index of the free
5614 slot as FACE->id. */
5615 for (i
= 0; i
< c
->used
; ++i
)
5616 if (c
->faces_by_id
[i
] == NULL
)
5620 /* Maybe enlarge C->faces_by_id. */
5623 if (c
->used
== c
->size
)
5626 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5627 if (new_size
== c
->size
)
5628 abort (); /* Alternatives? ++kfs */
5629 sz
= new_size
* sizeof *c
->faces_by_id
;
5630 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5637 /* Check that FACE got a unique id. */
5642 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5643 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5649 #endif /* GLYPH_DEBUG */
5651 c
->faces_by_id
[i
] = face
;
5655 /* Remove face FACE from cache C. */
5658 uncache_face (c
, face
)
5659 struct face_cache
*c
;
5662 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5665 face
->prev
->next
= face
->next
;
5667 c
->buckets
[i
] = face
->next
;
5670 face
->next
->prev
= face
->prev
;
5672 c
->faces_by_id
[face
->id
] = NULL
;
5673 if (face
->id
== c
->used
)
5678 /* Look up a realized face with face attributes ATTR in the face cache
5679 of frame F. The face will be used to display character C. Value
5680 is the ID of the face found. If no suitable face is found, realize
5681 a new one. In that case, if C is a multibyte character, BASE_FACE
5682 is a face that has the same attributes. */
5685 lookup_face (f
, attr
, c
, base_face
)
5689 struct face
*base_face
;
5691 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5696 xassert (cache
!= NULL
);
5697 check_lface_attrs (attr
);
5699 /* Look up ATTR in the face cache. */
5700 hash
= lface_hash (attr
);
5701 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5703 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5704 if (face
->hash
== hash
5705 && (!FRAME_WINDOW_P (f
)
5706 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5707 && lface_equal_p (face
->lface
, attr
))
5710 /* If not found, realize a new face. */
5712 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5715 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5717 /* When this function is called from face_for_char (in this case, C is
5718 a multibyte character), a fontset of a face returned by
5719 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5720 C) is not sutisfied. The fontset is set for this face by
5721 face_for_char later. */
5723 if (FRAME_WINDOW_P (f
))
5724 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5726 #endif /* GLYPH_DEBUG */
5732 /* Return the face id of the realized face for named face SYMBOL on
5733 frame F suitable for displaying character C. Value is -1 if the
5734 face couldn't be determined, which might happen if the default face
5735 isn't realized and cannot be realized. */
5738 lookup_named_face (f
, symbol
, c
)
5743 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5744 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5745 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5747 if (default_face
== NULL
)
5749 if (!realize_basic_faces (f
))
5751 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5754 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5755 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5756 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5757 return lookup_face (f
, attrs
, c
, NULL
);
5761 /* Return the ID of the realized ASCII face of Lisp face with ID
5762 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5765 ascii_face_of_lisp_face (f
, lface_id
)
5771 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5773 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5774 face_id
= lookup_named_face (f
, face_name
, 0);
5783 /* Return a face for charset ASCII that is like the face with id
5784 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5785 STEPS < 0 means larger. Value is the id of the face. */
5788 smaller_face (f
, face_id
, steps
)
5792 #ifdef HAVE_WINDOW_SYSTEM
5794 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5795 int pt
, last_pt
, last_height
;
5798 struct face
*new_face
;
5800 /* If not called for an X frame, just return the original face. */
5801 if (FRAME_TERMCAP_P (f
))
5804 /* Try in increments of 1/2 pt. */
5805 delta
= steps
< 0 ? 5 : -5;
5806 steps
= abs (steps
);
5808 face
= FACE_FROM_ID (f
, face_id
);
5809 bcopy (face
->lface
, attrs
, sizeof attrs
);
5810 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5811 new_face_id
= face_id
;
5812 last_height
= FONT_HEIGHT (face
->font
);
5816 /* Give up if we cannot find a font within 10pt. */
5817 && abs (last_pt
- pt
) < 100)
5819 /* Look up a face for a slightly smaller/larger font. */
5821 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5822 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5823 new_face
= FACE_FROM_ID (f
, new_face_id
);
5825 /* If height changes, count that as one step. */
5826 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5827 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5830 last_height
= FONT_HEIGHT (new_face
->font
);
5837 #else /* not HAVE_WINDOW_SYSTEM */
5841 #endif /* not HAVE_WINDOW_SYSTEM */
5845 /* Return a face for charset ASCII that is like the face with id
5846 FACE_ID on frame F, but has height HEIGHT. */
5849 face_with_height (f
, face_id
, height
)
5854 #ifdef HAVE_WINDOW_SYSTEM
5856 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5858 if (FRAME_TERMCAP_P (f
)
5862 face
= FACE_FROM_ID (f
, face_id
);
5863 bcopy (face
->lface
, attrs
, sizeof attrs
);
5864 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5865 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5866 #endif /* HAVE_WINDOW_SYSTEM */
5872 /* Return the face id of the realized face for named face SYMBOL on
5873 frame F suitable for displaying character C, and use attributes of
5874 the face FACE_ID for attributes that aren't completely specified by
5875 SYMBOL. This is like lookup_named_face, except that the default
5876 attributes come from FACE_ID, not from the default face. FACE_ID
5877 is assumed to be already realized. */
5880 lookup_derived_face (f
, symbol
, c
, face_id
)
5886 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5887 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5888 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5893 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5894 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5895 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5896 return lookup_face (f
, attrs
, c
, default_face
);
5899 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5900 Sface_attributes_as_vector
, 1, 1, 0,
5901 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5906 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5908 merge_face_vector_with_property (XFRAME (selected_frame
),
5909 XVECTOR (lface
)->contents
,
5916 /***********************************************************************
5918 ***********************************************************************/
5920 DEFUN ("internal-set-font-selection-order",
5921 Finternal_set_font_selection_order
,
5922 Sinternal_set_font_selection_order
, 1, 1, 0,
5923 doc
: /* Set font selection order for face font selection to ORDER.
5924 ORDER must be a list of length 4 containing the symbols `:width',
5925 `:height', `:weight', and `:slant'. Face attributes appearing
5926 first in ORDER are matched first, e.g. if `:height' appears before
5927 `:weight' in ORDER, font selection first tries to find a font with
5928 a suitable height, and then tries to match the font weight.
5935 int indices
[DIM (font_sort_order
)];
5938 bzero (indices
, sizeof indices
);
5942 CONSP (list
) && i
< DIM (indices
);
5943 list
= XCDR (list
), ++i
)
5945 Lisp_Object attr
= XCAR (list
);
5948 if (EQ (attr
, QCwidth
))
5950 else if (EQ (attr
, QCheight
))
5951 xlfd
= XLFD_POINT_SIZE
;
5952 else if (EQ (attr
, QCweight
))
5954 else if (EQ (attr
, QCslant
))
5959 if (indices
[i
] != 0)
5964 if (!NILP (list
) || i
!= DIM (indices
))
5965 signal_error ("Invalid font sort order", order
);
5966 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5967 if (indices
[i
] == 0)
5968 signal_error ("Invalid font sort order", order
);
5970 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5972 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5973 free_all_realized_faces (Qnil
);
5980 DEFUN ("internal-set-alternative-font-family-alist",
5981 Finternal_set_alternative_font_family_alist
,
5982 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5983 doc
: /* Define alternative font families to try in face font selection.
5984 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
5985 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
5986 be found. Value is ALIST. */)
5991 Vface_alternative_font_family_alist
= alist
;
5992 free_all_realized_faces (Qnil
);
5997 DEFUN ("internal-set-alternative-font-registry-alist",
5998 Finternal_set_alternative_font_registry_alist
,
5999 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6000 doc
: /* Define alternative font registries to try in face font selection.
6001 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6002 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6003 be found. Value is ALIST. */)
6008 Vface_alternative_font_registry_alist
= alist
;
6009 free_all_realized_faces (Qnil
);
6014 #ifdef HAVE_WINDOW_SYSTEM
6016 /* Value is non-zero if FONT is the name of a scalable font. The
6017 X11R6 XLFD spec says that point size, pixel size, and average width
6018 are zero for scalable fonts. Intlfonts contain at least one
6019 scalable font ("*-muleindian-1") for which this isn't true, so we
6020 just test average width. */
6023 font_scalable_p (font
)
6024 struct font_name
*font
;
6026 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6027 return (*s
== '0' && *(s
+ 1) == '\0')
6029 /* Windows implementation of XLFD is slightly broken for backward
6030 compatibility with previous broken versions, so test for
6031 wildcards as well as 0. */
6038 /* Ignore the difference of font point size less than this value. */
6040 #define FONT_POINT_SIZE_QUANTUM 5
6042 /* Value is non-zero if FONT1 is a better match for font attributes
6043 VALUES than FONT2. VALUES is an array of face attribute values in
6044 font sort order. COMPARE_PT_P zero means don't compare point
6045 sizes. AVGWIDTH, if not zero, is a specified font average width
6049 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6051 struct font_name
*font1
, *font2
;
6052 int compare_pt_p
, avgwidth
;
6056 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6058 int xlfd_idx
= font_sort_order
[i
];
6060 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6064 if (xlfd_idx
== XLFD_POINT_SIZE
)
6066 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6067 / font1
->rescale_ratio
));
6068 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6069 / font2
->rescale_ratio
));
6070 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6075 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6076 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6079 if (delta1
> delta2
)
6081 else if (delta1
< delta2
)
6085 /* The difference may be equal because, e.g., the face
6086 specifies `italic' but we have only `regular' and
6087 `oblique'. Prefer `oblique' in this case. */
6088 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6089 && font1
->numeric
[xlfd_idx
] > values
[i
]
6090 && font2
->numeric
[xlfd_idx
] < values
[i
])
6098 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6099 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6100 if (delta1
> delta2
)
6102 else if (delta1
< delta2
)
6108 /* We prefer a real scalable font; i.e. not what autoscaled. */
6109 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6110 && font1
->numeric
[XLFD_RESY
] > 0);
6111 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6112 && font2
->numeric
[XLFD_RESY
] > 0);
6114 if (auto_scaled_1
!= auto_scaled_2
)
6115 return auto_scaled_2
;
6118 return font1
->registry_priority
< font2
->registry_priority
;
6122 /* Value is non-zero if FONT is an exact match for face attributes in
6123 SPECIFIED. SPECIFIED is an array of face attribute values in font
6124 sort order. AVGWIDTH, if non-zero, is an average width to compare
6128 exact_face_match_p (specified
, font
, avgwidth
)
6130 struct font_name
*font
;
6135 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6136 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6139 return (i
== DIM (font_sort_order
)
6141 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6145 /* Value is the name of a scaled font, generated from scalable font
6146 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6147 Value is allocated from heap. */
6150 build_scalable_font_name (f
, font
, specified_pt
)
6152 struct font_name
*font
;
6155 char pixel_size
[20];
6157 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6160 /* If scalable font is for a specific resolution, compute
6161 the point size we must specify from the resolution of
6162 the display and the specified resolution of the font. */
6163 if (font
->numeric
[XLFD_RESY
] != 0)
6165 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6166 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
6171 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
6173 /* We may need a font of the different size. */
6174 pixel_value
*= font
->rescale_ratio
;
6176 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6177 font of the specified PIXEL_SIZE. */
6179 { /* Set point size of the font. */
6180 char point_size
[20];
6181 sprintf (point_size
, "%d", (int) pt
);
6182 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6183 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6187 /* Set pixel size. */
6188 sprintf (pixel_size
, "%d", pixel_value
);
6189 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6190 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6192 /* If font doesn't specify its resolution, use the
6193 resolution of the display. */
6194 if (font
->numeric
[XLFD_RESY
] == 0)
6197 sprintf (buffer
, "%d", (int) resy
);
6198 font
->fields
[XLFD_RESY
] = buffer
;
6199 font
->numeric
[XLFD_RESY
] = resy
;
6202 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6205 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6206 sprintf (buffer
, "%d", resx
);
6207 font
->fields
[XLFD_RESX
] = buffer
;
6208 font
->numeric
[XLFD_RESX
] = resx
;
6211 return build_font_name (font
);
6215 /* Value is non-zero if we are allowed to use scalable font FONT. We
6216 can't run a Lisp function here since this function may be called
6217 with input blocked. */
6220 may_use_scalable_font_p (font
)
6223 if (EQ (Vscalable_fonts_allowed
, Qt
))
6225 else if (CONSP (Vscalable_fonts_allowed
))
6227 Lisp_Object tail
, regexp
;
6229 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6231 regexp
= XCAR (tail
);
6232 if (STRINGP (regexp
)
6233 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6243 /* Return the name of the best matching font for face attributes ATTRS
6244 in the array of font_name structures FONTS which contains NFONTS
6245 elements. WIDTH_RATIO is a factor with which to multiply average
6246 widths if ATTRS specifies such a width.
6248 Value is a font name which is allocated from the heap. FONTS is
6249 freed by this function.
6251 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6252 indicate whether the resulting font should be drawn using overstrike
6253 to simulate bold-face. */
6256 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6259 struct font_name
*fonts
;
6262 int *needs_overstrike
;
6265 struct font_name
*best
;
6268 int exact_p
, avgwidth
;
6273 /* Make specified font attributes available in `specified',
6274 indexed by sort order. */
6275 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6277 int xlfd_idx
= font_sort_order
[i
];
6279 if (xlfd_idx
== XLFD_SWIDTH
)
6280 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6281 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6282 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6283 else if (xlfd_idx
== XLFD_WEIGHT
)
6284 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6285 else if (xlfd_idx
== XLFD_SLANT
)
6286 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6291 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6293 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6297 if (needs_overstrike
)
6298 *needs_overstrike
= 0;
6300 /* Start with the first non-scalable font in the list. */
6301 for (i
= 0; i
< nfonts
; ++i
)
6302 if (!font_scalable_p (fonts
+ i
))
6305 /* Find the best match among the non-scalable fonts. */
6310 for (i
= 1; i
< nfonts
; ++i
)
6311 if (!font_scalable_p (fonts
+ i
)
6312 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6316 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6324 /* Unless we found an exact match among non-scalable fonts, see if
6325 we can find a better match among scalable fonts. */
6328 /* A scalable font is better if
6330 1. its weight, slant, swidth attributes are better, or.
6332 2. the best non-scalable font doesn't have the required
6333 point size, and the scalable fonts weight, slant, swidth
6336 int non_scalable_has_exact_height_p
;
6338 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6339 non_scalable_has_exact_height_p
= 1;
6341 non_scalable_has_exact_height_p
= 0;
6343 for (i
= 0; i
< nfonts
; ++i
)
6344 if (font_scalable_p (fonts
+ i
))
6347 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6348 || (!non_scalable_has_exact_height_p
6349 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6351 non_scalable_has_exact_height_p
= 1;
6356 if (needs_overstrike
)
6358 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6359 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6361 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6363 /* We want a bold font, but didn't get one; try to use
6364 overstriking instead to simulate bold-face. However,
6365 don't overstrike an already-bold fontn unless the
6366 desired weight grossly exceeds the available weight. */
6367 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6368 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6370 *needs_overstrike
= 1;
6375 if (font_scalable_p (best
))
6376 font_name
= build_scalable_font_name (f
, best
, pt
);
6378 font_name
= build_font_name (best
);
6380 /* Free font_name structures. */
6381 free_font_names (fonts
, nfonts
);
6387 /* Get a list of matching fonts on frame F, considering FAMILY
6388 and alternative font families from Vface_alternative_font_registry_alist.
6390 FAMILY is the font family whose alternatives are considered.
6392 REGISTRY, if a string, specifies a font registry and encoding to
6393 match. A value of nil means include fonts of any registry and
6396 Return in *FONTS a pointer to a vector of font_name structures for
6397 the fonts matched. Value is the number of fonts found. */
6400 try_alternative_families (f
, family
, registry
, fonts
)
6402 Lisp_Object family
, registry
;
6403 struct font_name
**fonts
;
6408 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6411 /* Try alternative font families. */
6412 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6415 for (alter
= XCDR (alter
);
6416 CONSP (alter
) && nfonts
== 0;
6417 alter
= XCDR (alter
))
6419 if (STRINGP (XCAR (alter
)))
6420 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6424 /* Try all scalable fonts before giving up. */
6425 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6427 int count
= SPECPDL_INDEX ();
6428 specbind (Qscalable_fonts_allowed
, Qt
);
6429 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6430 unbind_to (count
, Qnil
);
6437 /* Get a list of matching fonts on frame F.
6439 FAMILY, if a string, specifies a font family derived from the fontset.
6440 It is only used if the face does not specify any family in ATTRS or
6441 if we cannot find any font of the face's family.
6443 REGISTRY, if a string, specifies a font registry and encoding to
6444 match. A value of nil means include fonts of any registry and
6447 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6448 Otherwise, prefer FAMILY.
6450 Return in *FONTS a pointer to a vector of font_name structures for
6451 the fonts matched. Value is the number of fonts found. */
6454 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6457 Lisp_Object family
, registry
;
6458 struct font_name
**fonts
;
6459 int prefer_face_family
;
6462 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6463 Lisp_Object try_family
;
6465 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6467 if (STRINGP (try_family
))
6468 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6471 /* When realizing the default face and a font spec does not matched
6472 exactly, Emacs looks for ones with the same registry as the
6473 default font. On the Mac, this is mac-roman, which does not work
6474 if the family is -etl-fixed, e.g. The following widens the
6475 choices and fixes that problem. */
6476 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
)
6477 && xstricmp (SDATA (registry
), "mac-roman") == 0)
6478 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6481 if (EQ (try_family
, family
))
6482 family
= face_family
;
6484 if (nfonts
== 0 && STRINGP (family
))
6485 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6487 /* Try font family of the default face or "fixed". */
6490 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6492 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6494 family
= build_string ("fixed");
6495 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6498 /* Try any family with the given registry. */
6500 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6506 /* Return the fontset id of the base fontset name or alias name given
6507 by the fontset attribute of ATTRS. Value is -1 if the fontset
6508 attribute of ATTRS doesn't name a fontset. */
6511 face_fontset (attrs
)
6516 name
= attrs
[LFACE_FONT_INDEX
];
6517 if (!STRINGP (name
))
6519 return fs_query_fontset (name
, 0);
6523 /* Choose a name of font to use on frame F to display character C with
6524 Lisp face attributes specified by ATTRS. The font name is
6525 determined by the font-related attributes in ATTRS and the name
6526 pattern for C in FONTSET. Value is the font name which is
6527 allocated from the heap and must be freed by the caller, or NULL if
6528 we can get no information about the font name of C. It is assured
6529 that we always get some information for a single byte
6532 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6533 indicate whether the resulting font should be drawn using overstrike
6534 to simulate bold-face. */
6537 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6541 int *needs_overstrike
;
6543 Lisp_Object pattern
;
6544 char *font_name
= NULL
;
6545 struct font_name
*fonts
;
6546 int nfonts
, width_ratio
;
6548 if (needs_overstrike
)
6549 *needs_overstrike
= 0;
6551 /* Get (foundry and) family name and registry (and encoding) name of
6553 pattern
= fontset_font_pattern (f
, fontset
, c
);
6556 xassert (!SINGLE_BYTE_CHAR_P (c
));
6560 /* If what we got is a name pattern, return it. */
6561 if (STRINGP (pattern
))
6562 return xstrdup (SDATA (pattern
));
6564 /* Get a list of fonts matching that pattern and choose the
6565 best match for the specified face attributes from it. */
6566 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6567 (SINGLE_BYTE_CHAR_P (c
)
6568 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6569 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6571 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6572 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6577 #endif /* HAVE_WINDOW_SYSTEM */
6581 /***********************************************************************
6583 ***********************************************************************/
6585 /* Realize basic faces on frame F. Value is zero if frame parameters
6586 of F don't contain enough information needed to realize the default
6590 realize_basic_faces (f
)
6594 int count
= SPECPDL_INDEX ();
6596 /* Block input here so that we won't be surprised by an X expose
6597 event, for instance, without having the faces set up. */
6599 specbind (Qscalable_fonts_allowed
, Qt
);
6601 if (realize_default_face (f
))
6603 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6604 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6605 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6606 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6607 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6608 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6609 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6610 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6611 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6612 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6614 /* Reflect changes in the `menu' face in menu bars. */
6615 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6617 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6618 #ifdef USE_X_TOOLKIT
6619 x_update_menu_appearance (f
);
6626 unbind_to (count
, Qnil
);
6632 /* Realize the default face on frame F. If the face is not fully
6633 specified, make it fully-specified. Attributes of the default face
6634 that are not explicitly specified are taken from frame parameters. */
6637 realize_default_face (f
)
6640 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6642 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6643 Lisp_Object frame_font
;
6646 /* If the `default' face is not yet known, create it. */
6647 lface
= lface_from_face_name (f
, Qdefault
, 0);
6651 XSETFRAME (frame
, f
);
6652 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6656 #ifdef HAVE_WINDOW_SYSTEM
6657 if (FRAME_WINDOW_P (f
))
6659 /* Set frame_font to the value of the `font' frame parameter. */
6660 frame_font
= Fassq (Qfont
, f
->param_alist
);
6661 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6662 frame_font
= XCDR (frame_font
);
6663 set_lface_from_font_name (f
, lface
, frame_font
,
6664 f
->default_face_done_p
, 1);
6665 f
->default_face_done_p
= 1;
6667 #endif /* HAVE_WINDOW_SYSTEM */
6669 if (!FRAME_WINDOW_P (f
))
6671 LFACE_FAMILY (lface
) = build_string ("default");
6672 LFACE_SWIDTH (lface
) = Qnormal
;
6673 LFACE_HEIGHT (lface
) = make_number (1);
6674 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6675 LFACE_WEIGHT (lface
) = Qnormal
;
6676 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6677 LFACE_SLANT (lface
) = Qnormal
;
6678 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6681 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6682 LFACE_UNDERLINE (lface
) = Qnil
;
6684 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6685 LFACE_OVERLINE (lface
) = Qnil
;
6687 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6688 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6690 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6691 LFACE_BOX (lface
) = Qnil
;
6693 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6694 LFACE_INVERSE (lface
) = Qnil
;
6696 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6698 /* This function is called so early that colors are not yet
6699 set in the frame parameter list. */
6700 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6702 if (CONSP (color
) && STRINGP (XCDR (color
)))
6703 LFACE_FOREGROUND (lface
) = XCDR (color
);
6704 else if (FRAME_WINDOW_P (f
))
6706 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6707 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6712 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6714 /* This function is called so early that colors are not yet
6715 set in the frame parameter list. */
6716 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6717 if (CONSP (color
) && STRINGP (XCDR (color
)))
6718 LFACE_BACKGROUND (lface
) = XCDR (color
);
6719 else if (FRAME_WINDOW_P (f
))
6721 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6722 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6727 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6728 LFACE_STIPPLE (lface
) = Qnil
;
6730 /* Realize the face; it must be fully-specified now. */
6731 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6732 check_lface (lface
);
6733 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6734 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6739 /* Realize basic faces other than the default face in face cache C.
6740 SYMBOL is the face name, ID is the face id the realized face must
6741 have. The default face must have been realized already. */
6744 realize_named_face (f
, symbol
, id
)
6749 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6750 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6751 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6752 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6753 struct face
*new_face
;
6755 /* The default face must exist and be fully specified. */
6756 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6757 check_lface_attrs (attrs
);
6758 xassert (lface_fully_specified_p (attrs
));
6760 /* If SYMBOL isn't know as a face, create it. */
6764 XSETFRAME (frame
, f
);
6765 lface
= Finternal_make_lisp_face (symbol
, frame
);
6768 /* Merge SYMBOL's face with the default face. */
6769 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6770 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
6772 /* Realize the face. */
6773 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6777 /* Realize the fully-specified face with attributes ATTRS in face
6778 cache CACHE for character C. If C is a multibyte character,
6779 BASE_FACE is a face that has the same attributes. Otherwise,
6780 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6781 ID of face to remove before caching the new face. Value is a
6782 pointer to the newly created realized face. */
6784 static struct face
*
6785 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6786 struct face_cache
*cache
;
6789 struct face
*base_face
;
6794 /* LFACE must be fully specified. */
6795 xassert (cache
!= NULL
);
6796 check_lface_attrs (attrs
);
6798 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
6800 /* Remove the former face. */
6801 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
6802 uncache_face (cache
, former_face
);
6803 free_realized_face (cache
->f
, former_face
);
6806 if (FRAME_WINDOW_P (cache
->f
))
6807 face
= realize_x_face (cache
, attrs
, c
, base_face
);
6808 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
6809 face
= realize_tty_face (cache
, attrs
, c
);
6813 /* Insert the new face. */
6814 cache_face (cache
, face
, lface_hash (attrs
));
6815 #ifdef HAVE_WINDOW_SYSTEM
6816 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
6817 load_face_font (cache
->f
, face
, c
);
6818 #endif /* HAVE_WINDOW_SYSTEM */
6823 /* Realize the fully-specified face with attributes ATTRS in face
6824 cache CACHE for character C. Do it for X frame CACHE->f. If C is
6825 a multibyte character, BASE_FACE is a face that has the same
6826 attributes. Otherwise, BASE_FACE is ignored. If the new face
6827 doesn't share font with the default face, a fontname is allocated
6828 from the heap and set in `font_name' of the new face, but it is not
6829 yet loaded here. Value is a pointer to the newly created realized
6832 static struct face
*
6833 realize_x_face (cache
, attrs
, c
, base_face
)
6834 struct face_cache
*cache
;
6837 struct face
*base_face
;
6839 #ifdef HAVE_WINDOW_SYSTEM
6840 struct face
*face
, *default_face
;
6842 Lisp_Object stipple
, overline
, strike_through
, box
;
6844 xassert (FRAME_WINDOW_P (cache
->f
));
6845 xassert (SINGLE_BYTE_CHAR_P (c
)
6848 /* Allocate a new realized face. */
6849 face
= make_realized_face (attrs
);
6853 /* If C is a multibyte character, we share all face attirbutes with
6854 BASE_FACE including the realized fontset. But, we must load a
6856 if (!SINGLE_BYTE_CHAR_P (c
))
6858 bcopy (base_face
, face
, sizeof *face
);
6861 /* Don't try to free the colors copied bitwise from BASE_FACE. */
6862 face
->colors_copied_bitwise_p
= 1;
6864 /* to force realize_face to load font */
6869 /* Now we are realizing a face for ASCII (and unibyte) characters. */
6871 /* Determine the font to use. Most of the time, the font will be
6872 the same as the font of the default face, so try that first. */
6873 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6875 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
6876 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
6878 face
->font
= default_face
->font
;
6879 face
->fontset
= default_face
->fontset
;
6880 face
->font_info_id
= default_face
->font_info_id
;
6881 face
->font_name
= default_face
->font_name
;
6882 face
->ascii_face
= face
;
6884 /* But, as we can't share the fontset, make a new realized
6885 fontset that has the same base fontset as of the default
6888 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
6892 /* If the face attribute ATTRS specifies a fontset, use it as
6893 the base of a new realized fontset. Otherwise, use the same
6894 base fontset as of the default face. The base determines
6895 registry and encoding of a font. It may also determine
6896 foundry and family. The other fields of font name pattern
6897 are constructed from ATTRS. */
6898 int fontset
= face_fontset (attrs
);
6900 if ((fontset
== -1) && default_face
)
6901 fontset
= default_face
->fontset
;
6902 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
6903 face
->font
= NULL
; /* to force realize_face to load font */
6906 /* Load colors, and set remaining attributes. */
6908 load_face_colors (f
, face
, attrs
);
6911 box
= attrs
[LFACE_BOX_INDEX
];
6914 /* A simple box of line width 1 drawn in color given by
6916 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
6918 face
->box
= FACE_SIMPLE_BOX
;
6919 face
->box_line_width
= 1;
6921 else if (INTEGERP (box
))
6923 /* Simple box of specified line width in foreground color of the
6925 xassert (XINT (box
) != 0);
6926 face
->box
= FACE_SIMPLE_BOX
;
6927 face
->box_line_width
= XINT (box
);
6928 face
->box_color
= face
->foreground
;
6929 face
->box_color_defaulted_p
= 1;
6931 else if (CONSP (box
))
6933 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
6934 being one of `raised' or `sunken'. */
6935 face
->box
= FACE_SIMPLE_BOX
;
6936 face
->box_color
= face
->foreground
;
6937 face
->box_color_defaulted_p
= 1;
6938 face
->box_line_width
= 1;
6942 Lisp_Object keyword
, value
;
6944 keyword
= XCAR (box
);
6952 if (EQ (keyword
, QCline_width
))
6954 if (INTEGERP (value
) && XINT (value
) != 0)
6955 face
->box_line_width
= XINT (value
);
6957 else if (EQ (keyword
, QCcolor
))
6959 if (STRINGP (value
))
6961 face
->box_color
= load_color (f
, face
, value
,
6963 face
->use_box_color_for_shadows_p
= 1;
6966 else if (EQ (keyword
, QCstyle
))
6968 if (EQ (value
, Qreleased_button
))
6969 face
->box
= FACE_RAISED_BOX
;
6970 else if (EQ (value
, Qpressed_button
))
6971 face
->box
= FACE_SUNKEN_BOX
;
6976 /* Text underline, overline, strike-through. */
6978 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6980 /* Use default color (same as foreground color). */
6981 face
->underline_p
= 1;
6982 face
->underline_defaulted_p
= 1;
6983 face
->underline_color
= 0;
6985 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6987 /* Use specified color. */
6988 face
->underline_p
= 1;
6989 face
->underline_defaulted_p
= 0;
6990 face
->underline_color
6991 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6992 LFACE_UNDERLINE_INDEX
);
6994 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6996 face
->underline_p
= 0;
6997 face
->underline_defaulted_p
= 0;
6998 face
->underline_color
= 0;
7001 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7002 if (STRINGP (overline
))
7004 face
->overline_color
7005 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7006 LFACE_OVERLINE_INDEX
);
7007 face
->overline_p
= 1;
7009 else if (EQ (overline
, Qt
))
7011 face
->overline_color
= face
->foreground
;
7012 face
->overline_color_defaulted_p
= 1;
7013 face
->overline_p
= 1;
7016 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7017 if (STRINGP (strike_through
))
7019 face
->strike_through_color
7020 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7021 LFACE_STRIKE_THROUGH_INDEX
);
7022 face
->strike_through_p
= 1;
7024 else if (EQ (strike_through
, Qt
))
7026 face
->strike_through_color
= face
->foreground
;
7027 face
->strike_through_color_defaulted_p
= 1;
7028 face
->strike_through_p
= 1;
7031 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7032 if (!NILP (stipple
))
7033 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7035 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7037 #endif /* HAVE_WINDOW_SYSTEM */
7041 /* Map a specified color of face FACE on frame F to a tty color index.
7042 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7043 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7044 default foreground/background colors. */
7047 map_tty_color (f
, face
, idx
, defaulted
)
7050 enum lface_attribute_index idx
;
7053 Lisp_Object frame
, color
, def
;
7054 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7055 unsigned long default_pixel
, default_other_pixel
, pixel
;
7057 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7061 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7062 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7066 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7067 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7070 XSETFRAME (frame
, f
);
7071 color
= face
->lface
[idx
];
7075 && CONSP (Vtty_defined_color_alist
)
7076 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7079 /* Associations in tty-defined-color-alist are of the form
7080 (NAME INDEX R G B). We need the INDEX part. */
7081 pixel
= XINT (XCAR (XCDR (def
)));
7084 if (pixel
== default_pixel
&& STRINGP (color
))
7086 pixel
= load_color (f
, face
, color
, idx
);
7088 #if defined (MSDOS) || defined (WINDOWSNT)
7089 /* If the foreground of the default face is the default color,
7090 use the foreground color defined by the frame. */
7092 if (FRAME_MSDOS_P (f
))
7095 if (pixel
== default_pixel
7096 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7099 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7101 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7102 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7105 else if (pixel
== default_other_pixel
)
7108 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7110 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7111 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7117 #endif /* MSDOS or WINDOWSNT */
7121 face
->foreground
= pixel
;
7123 face
->background
= pixel
;
7127 /* Realize the fully-specified face with attributes ATTRS in face
7128 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7129 pointer to the newly created realized face. */
7131 static struct face
*
7132 realize_tty_face (cache
, attrs
, c
)
7133 struct face_cache
*cache
;
7139 int face_colors_defaulted
= 0;
7140 struct frame
*f
= cache
->f
;
7142 /* Frame must be a termcap frame. */
7143 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7145 /* Allocate a new realized face. */
7146 face
= make_realized_face (attrs
);
7147 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7149 /* Map face attributes to TTY appearances. We map slant to
7150 dimmed text because we want italic text to appear differently
7151 and because dimmed text is probably used infrequently. */
7152 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7153 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7155 if (weight
> XLFD_WEIGHT_MEDIUM
)
7156 face
->tty_bold_p
= 1;
7157 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7158 face
->tty_dim_p
= 1;
7159 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7160 face
->tty_underline_p
= 1;
7161 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7162 face
->tty_reverse_p
= 1;
7164 /* Map color names to color indices. */
7165 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7166 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7168 /* Swap colors if face is inverse-video. If the colors are taken
7169 from the frame colors, they are already inverted, since the
7170 frame-creation function calls x-handle-reverse-video. */
7171 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7173 unsigned long tem
= face
->foreground
;
7174 face
->foreground
= face
->background
;
7175 face
->background
= tem
;
7178 if (tty_suppress_bold_inverse_default_colors_p
7180 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7181 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7182 face
->tty_bold_p
= 0;
7188 DEFUN ("tty-suppress-bold-inverse-default-colors",
7189 Ftty_suppress_bold_inverse_default_colors
,
7190 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7191 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7192 SUPPRESS non-nil means suppress it.
7193 This affects bold faces on TTYs whose foreground is the default background
7194 color of the display and whose background is the default foreground color.
7195 For such faces, the bold face attribute is ignored if this variable
7198 Lisp_Object suppress
;
7200 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7201 ++face_change_count
;
7207 /***********************************************************************
7209 ***********************************************************************/
7211 /* Return the ID of the face to use to display character CH with face
7212 property PROP on frame F in current_buffer. */
7215 compute_char_face (f
, ch
, prop
)
7222 if (NILP (current_buffer
->enable_multibyte_characters
))
7227 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7228 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7232 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7233 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7234 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7235 merge_face_vector_with_property (f
, attrs
, prop
);
7236 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7242 /* Return the face ID associated with buffer position POS for
7243 displaying ASCII characters. Return in *ENDPTR the position at
7244 which a different face is needed, as far as text properties and
7245 overlays are concerned. W is a window displaying current_buffer.
7247 REGION_BEG, REGION_END delimit the region, so it can be
7250 LIMIT is a position not to scan beyond. That is to limit the time
7251 this function can take.
7253 If MOUSE is non-zero, use the character's mouse-face, not its face.
7255 The face returned is suitable for displaying ASCII characters. */
7258 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7259 endptr
, limit
, mouse
)
7262 int region_beg
, region_end
;
7267 struct frame
*f
= XFRAME (w
->frame
);
7268 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7269 Lisp_Object prop
, position
;
7271 Lisp_Object
*overlay_vec
;
7274 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7275 Lisp_Object limit1
, end
;
7276 struct face
*default_face
;
7278 /* W must display the current buffer. We could write this function
7279 to use the frame and buffer of W, but right now it doesn't. */
7280 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7282 XSETFRAME (frame
, f
);
7283 XSETFASTINT (position
, pos
);
7286 if (pos
< region_beg
&& region_beg
< endpos
)
7287 endpos
= region_beg
;
7289 /* Get the `face' or `mouse_face' text property at POS, and
7290 determine the next position at which the property changes. */
7291 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7292 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7293 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7295 endpos
= XINT (end
);
7297 /* Look at properties from overlays. */
7302 /* First try with room for 40 overlays. */
7304 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
7305 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
7306 &next_overlay
, NULL
, 0);
7308 /* If there are more than 40, make enough space for all, and try
7310 if (noverlays
> len
)
7313 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
7314 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
7315 &next_overlay
, NULL
, 0);
7318 if (next_overlay
< endpos
)
7319 endpos
= next_overlay
;
7324 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7326 /* Optimize common cases where we can use the default face. */
7329 && !(pos
>= region_beg
&& pos
< region_end
))
7330 return DEFAULT_FACE_ID
;
7332 /* Begin with attributes from the default face. */
7333 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7335 /* Merge in attributes specified via text properties. */
7337 merge_face_vector_with_property (f
, attrs
, prop
);
7339 /* Now merge the overlay data. */
7340 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7341 for (i
= 0; i
< noverlays
; i
++)
7346 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7348 merge_face_vector_with_property (f
, attrs
, prop
);
7350 oend
= OVERLAY_END (overlay_vec
[i
]);
7351 oendpos
= OVERLAY_POSITION (oend
);
7352 if (oendpos
< endpos
)
7356 /* If in the region, merge in the region face. */
7357 if (pos
>= region_beg
&& pos
< region_end
)
7359 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
7360 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
7362 if (region_end
< endpos
)
7363 endpos
= region_end
;
7368 /* Look up a realized face with the given face attributes,
7369 or realize a new one for ASCII characters. */
7370 return lookup_face (f
, attrs
, 0, NULL
);
7374 /* Compute the face at character position POS in Lisp string STRING on
7375 window W, for ASCII characters.
7377 If STRING is an overlay string, it comes from position BUFPOS in
7378 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7379 not an overlay string. W must display the current buffer.
7380 REGION_BEG and REGION_END give the start and end positions of the
7381 region; both are -1 if no region is visible.
7383 BASE_FACE_ID is the id of a face to merge with. For strings coming
7384 from overlays or the `display' property it is the face at BUFPOS.
7386 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7388 Set *ENDPTR to the next position where to check for faces in
7389 STRING; -1 if the face is constant from POS to the end of the
7392 Value is the id of the face to use. The face returned is suitable
7393 for displaying ASCII characters. */
7396 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7397 region_end
, endptr
, base_face_id
, mouse_p
)
7401 int region_beg
, region_end
;
7403 enum face_id base_face_id
;
7406 Lisp_Object prop
, position
, end
, limit
;
7407 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7408 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7409 struct face
*base_face
;
7410 int multibyte_p
= STRING_MULTIBYTE (string
);
7411 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7413 /* Get the value of the face property at the current position within
7414 STRING. Value is nil if there is no face property. */
7415 XSETFASTINT (position
, pos
);
7416 prop
= Fget_text_property (position
, prop_name
, string
);
7418 /* Get the next position at which to check for faces. Value of end
7419 is nil if face is constant all the way to the end of the string.
7420 Otherwise it is a string position where to check faces next.
7421 Limit is the maximum position up to which to check for property
7422 changes in Fnext_single_property_change. Strings are usually
7423 short, so set the limit to the end of the string. */
7424 XSETFASTINT (limit
, SCHARS (string
));
7425 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7427 *endptr
= XFASTINT (end
);
7431 base_face
= FACE_FROM_ID (f
, base_face_id
);
7432 xassert (base_face
);
7434 /* Optimize the default case that there is no face property and we
7435 are not in the region. */
7437 && (base_face_id
!= DEFAULT_FACE_ID
7438 /* BUFPOS <= 0 means STRING is not an overlay string, so
7439 that the region doesn't have to be taken into account. */
7441 || bufpos
< region_beg
7442 || bufpos
>= region_end
)
7444 /* We can't realize faces for different charsets differently
7445 if we don't have fonts, so we can stop here if not working
7446 on a window-system frame. */
7447 || !FRAME_WINDOW_P (f
)
7448 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7449 return base_face
->id
;
7451 /* Begin with attributes from the base face. */
7452 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7454 /* Merge in attributes specified via text properties. */
7456 merge_face_vector_with_property (f
, attrs
, prop
);
7458 /* If in the region, merge in the region face. */
7460 && bufpos
>= region_beg
7461 && bufpos
< region_end
)
7463 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
7464 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
7467 /* Look up a realized face with the given face attributes,
7468 or realize a new one for ASCII characters. */
7469 return lookup_face (f
, attrs
, 0, NULL
);
7474 /***********************************************************************
7476 ***********************************************************************/
7480 /* Print the contents of the realized face FACE to stderr. */
7483 dump_realized_face (face
)
7486 fprintf (stderr
, "ID: %d\n", face
->id
);
7487 #ifdef HAVE_X_WINDOWS
7488 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7490 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7492 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7493 fprintf (stderr
, "background: 0x%lx (%s)\n",
7495 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7496 fprintf (stderr
, "font_name: %s (%s)\n",
7498 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7499 #ifdef HAVE_X_WINDOWS
7500 fprintf (stderr
, "font = %p\n", face
->font
);
7502 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7503 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7504 fprintf (stderr
, "underline: %d (%s)\n",
7506 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7507 fprintf (stderr
, "hash: %d\n", face
->hash
);
7508 fprintf (stderr
, "charset: %d\n", face
->charset
);
7512 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7520 fprintf (stderr
, "font selection order: ");
7521 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7522 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7523 fprintf (stderr
, "\n");
7525 fprintf (stderr
, "alternative fonts: ");
7526 debug_print (Vface_alternative_font_family_alist
);
7527 fprintf (stderr
, "\n");
7529 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7530 Fdump_face (make_number (i
));
7536 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7538 error ("Not a valid face");
7539 dump_realized_face (face
);
7546 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7547 0, 0, 0, doc
: /* */)
7550 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7551 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7552 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7556 #endif /* GLYPH_DEBUG != 0 */
7560 /***********************************************************************
7562 ***********************************************************************/
7567 Qface
= intern ("face");
7569 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7570 staticpro (&Qbitmap_spec_p
);
7571 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7572 staticpro (&Qframe_update_face_colors
);
7574 /* Lisp face attribute keywords. */
7575 QCfamily
= intern (":family");
7576 staticpro (&QCfamily
);
7577 QCheight
= intern (":height");
7578 staticpro (&QCheight
);
7579 QCweight
= intern (":weight");
7580 staticpro (&QCweight
);
7581 QCslant
= intern (":slant");
7582 staticpro (&QCslant
);
7583 QCunderline
= intern (":underline");
7584 staticpro (&QCunderline
);
7585 QCinverse_video
= intern (":inverse-video");
7586 staticpro (&QCinverse_video
);
7587 QCreverse_video
= intern (":reverse-video");
7588 staticpro (&QCreverse_video
);
7589 QCforeground
= intern (":foreground");
7590 staticpro (&QCforeground
);
7591 QCbackground
= intern (":background");
7592 staticpro (&QCbackground
);
7593 QCstipple
= intern (":stipple");;
7594 staticpro (&QCstipple
);
7595 QCwidth
= intern (":width");
7596 staticpro (&QCwidth
);
7597 QCfont
= intern (":font");
7598 staticpro (&QCfont
);
7599 QCbold
= intern (":bold");
7600 staticpro (&QCbold
);
7601 QCitalic
= intern (":italic");
7602 staticpro (&QCitalic
);
7603 QCoverline
= intern (":overline");
7604 staticpro (&QCoverline
);
7605 QCstrike_through
= intern (":strike-through");
7606 staticpro (&QCstrike_through
);
7607 QCbox
= intern (":box");
7609 QCinherit
= intern (":inherit");
7610 staticpro (&QCinherit
);
7612 /* Symbols used for Lisp face attribute values. */
7613 QCcolor
= intern (":color");
7614 staticpro (&QCcolor
);
7615 QCline_width
= intern (":line-width");
7616 staticpro (&QCline_width
);
7617 QCstyle
= intern (":style");
7618 staticpro (&QCstyle
);
7619 Qreleased_button
= intern ("released-button");
7620 staticpro (&Qreleased_button
);
7621 Qpressed_button
= intern ("pressed-button");
7622 staticpro (&Qpressed_button
);
7623 Qnormal
= intern ("normal");
7624 staticpro (&Qnormal
);
7625 Qultra_light
= intern ("ultra-light");
7626 staticpro (&Qultra_light
);
7627 Qextra_light
= intern ("extra-light");
7628 staticpro (&Qextra_light
);
7629 Qlight
= intern ("light");
7630 staticpro (&Qlight
);
7631 Qsemi_light
= intern ("semi-light");
7632 staticpro (&Qsemi_light
);
7633 Qsemi_bold
= intern ("semi-bold");
7634 staticpro (&Qsemi_bold
);
7635 Qbold
= intern ("bold");
7637 Qextra_bold
= intern ("extra-bold");
7638 staticpro (&Qextra_bold
);
7639 Qultra_bold
= intern ("ultra-bold");
7640 staticpro (&Qultra_bold
);
7641 Qoblique
= intern ("oblique");
7642 staticpro (&Qoblique
);
7643 Qitalic
= intern ("italic");
7644 staticpro (&Qitalic
);
7645 Qreverse_oblique
= intern ("reverse-oblique");
7646 staticpro (&Qreverse_oblique
);
7647 Qreverse_italic
= intern ("reverse-italic");
7648 staticpro (&Qreverse_italic
);
7649 Qultra_condensed
= intern ("ultra-condensed");
7650 staticpro (&Qultra_condensed
);
7651 Qextra_condensed
= intern ("extra-condensed");
7652 staticpro (&Qextra_condensed
);
7653 Qcondensed
= intern ("condensed");
7654 staticpro (&Qcondensed
);
7655 Qsemi_condensed
= intern ("semi-condensed");
7656 staticpro (&Qsemi_condensed
);
7657 Qsemi_expanded
= intern ("semi-expanded");
7658 staticpro (&Qsemi_expanded
);
7659 Qexpanded
= intern ("expanded");
7660 staticpro (&Qexpanded
);
7661 Qextra_expanded
= intern ("extra-expanded");
7662 staticpro (&Qextra_expanded
);
7663 Qultra_expanded
= intern ("ultra-expanded");
7664 staticpro (&Qultra_expanded
);
7665 Qbackground_color
= intern ("background-color");
7666 staticpro (&Qbackground_color
);
7667 Qforeground_color
= intern ("foreground-color");
7668 staticpro (&Qforeground_color
);
7669 Qunspecified
= intern ("unspecified");
7670 staticpro (&Qunspecified
);
7672 Qface_alias
= intern ("face-alias");
7673 staticpro (&Qface_alias
);
7674 Qdefault
= intern ("default");
7675 staticpro (&Qdefault
);
7676 Qtool_bar
= intern ("tool-bar");
7677 staticpro (&Qtool_bar
);
7678 Qregion
= intern ("region");
7679 staticpro (&Qregion
);
7680 Qfringe
= intern ("fringe");
7681 staticpro (&Qfringe
);
7682 Qheader_line
= intern ("header-line");
7683 staticpro (&Qheader_line
);
7684 Qscroll_bar
= intern ("scroll-bar");
7685 staticpro (&Qscroll_bar
);
7686 Qmenu
= intern ("menu");
7688 Qcursor
= intern ("cursor");
7689 staticpro (&Qcursor
);
7690 Qborder
= intern ("border");
7691 staticpro (&Qborder
);
7692 Qmouse
= intern ("mouse");
7693 staticpro (&Qmouse
);
7694 Qmode_line_inactive
= intern ("mode-line-inactive");
7695 staticpro (&Qmode_line_inactive
);
7696 Qtty_color_desc
= intern ("tty-color-desc");
7697 staticpro (&Qtty_color_desc
);
7698 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7699 staticpro (&Qtty_color_standard_values
);
7700 Qtty_color_by_index
= intern ("tty-color-by-index");
7701 staticpro (&Qtty_color_by_index
);
7702 Qtty_color_alist
= intern ("tty-color-alist");
7703 staticpro (&Qtty_color_alist
);
7704 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7705 staticpro (&Qscalable_fonts_allowed
);
7707 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7708 staticpro (&Vparam_value_alist
);
7709 Vface_alternative_font_family_alist
= Qnil
;
7710 staticpro (&Vface_alternative_font_family_alist
);
7711 Vface_alternative_font_registry_alist
= Qnil
;
7712 staticpro (&Vface_alternative_font_registry_alist
);
7714 defsubr (&Sinternal_make_lisp_face
);
7715 defsubr (&Sinternal_lisp_face_p
);
7716 defsubr (&Sinternal_set_lisp_face_attribute
);
7717 #ifdef HAVE_WINDOW_SYSTEM
7718 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7720 defsubr (&Scolor_gray_p
);
7721 defsubr (&Scolor_supported_p
);
7722 defsubr (&Sface_attribute_relative_p
);
7723 defsubr (&Smerge_face_attribute
);
7724 defsubr (&Sinternal_get_lisp_face_attribute
);
7725 defsubr (&Sinternal_lisp_face_attribute_values
);
7726 defsubr (&Sinternal_lisp_face_equal_p
);
7727 defsubr (&Sinternal_lisp_face_empty_p
);
7728 defsubr (&Sinternal_copy_lisp_face
);
7729 defsubr (&Sinternal_merge_in_global_face
);
7730 defsubr (&Sface_font
);
7731 defsubr (&Sframe_face_alist
);
7732 defsubr (&Stty_supports_face_attributes_p
);
7733 defsubr (&Scolor_distance
);
7734 defsubr (&Sinternal_set_font_selection_order
);
7735 defsubr (&Sinternal_set_alternative_font_family_alist
);
7736 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7737 defsubr (&Sface_attributes_as_vector
);
7739 defsubr (&Sdump_face
);
7740 defsubr (&Sshow_face_resources
);
7741 #endif /* GLYPH_DEBUG */
7742 defsubr (&Sclear_face_cache
);
7743 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7745 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7746 defsubr (&Sdump_colors
);
7749 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7750 doc
: /* *Limit for font matching.
7751 If an integer > 0, font matching functions won't load more than
7752 that number of fonts when searching for a matching font. */);
7753 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7755 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7756 doc
: /* List of global face definitions (for internal use only.) */);
7757 Vface_new_frame_defaults
= Qnil
;
7759 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7760 doc
: /* *Default stipple pattern used on monochrome displays.
7761 This stipple pattern is used on monochrome displays
7762 instead of shades of gray for a face background color.
7763 See `set-face-stipple' for possible values for this variable. */);
7764 Vface_default_stipple
= build_string ("gray3");
7766 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7767 doc
: /* An alist of defined terminal colors and their RGB values. */);
7768 Vtty_defined_color_alist
= Qnil
;
7770 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7771 doc
: /* Allowed scalable fonts.
7772 A value of nil means don't allow any scalable fonts.
7773 A value of t means allow any scalable font.
7774 Otherwise, value must be a list of regular expressions. A font may be
7775 scaled if its name matches a regular expression in the list.
7776 Note that if value is nil, a scalable font might still be used, if no
7777 other font of the appropriate family and registry is available. */);
7778 Vscalable_fonts_allowed
= Qnil
;
7780 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7781 doc
: /* List of ignored fonts.
7782 Each element is a regular expression that matches names of fonts to
7784 Vface_ignored_fonts
= Qnil
;
7786 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7787 doc
: /* Alist of fonts vs the rescaling factors.
7788 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7789 FONT-NAME-PATTERN is a regular expression matching a font name, and
7790 RESCALE-RATIO is a floating point number to specify how much larger
7791 \(or smaller) font we should use. For instance, if a face requests
7792 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7793 Vface_font_rescale_alist
= Qnil
;
7795 #ifdef HAVE_WINDOW_SYSTEM
7796 defsubr (&Sbitmap_spec_p
);
7797 defsubr (&Sx_list_fonts
);
7798 defsubr (&Sinternal_face_x_get_resource
);
7799 defsubr (&Sx_family_fonts
);
7800 defsubr (&Sx_font_family_list
);
7801 #endif /* HAVE_WINDOW_SYSTEM */
7804 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7805 (do not change this comment) */